download_file pulls a remote file or directory back to the controller over
the existing V2 file-transfer protocol. It reuses COMMAND_LIST_DRIVE to open
the file-manager sub-link, then sends CMD_DOWN_FILES_V2 so the Windows client
streams COMMAND_SEND_FILE_V2 chunks and a per-file COMMAND_FILE_COMPLETE_V2
SHA-256 checksum over its own authenticated sub-connection. The server routes
those two packet types into a new per-device FileTransferSession whenever a
download is pending, so the headless path never opens the GUI progress dialog;
the C2C and existing GUI branches are left untouched.
Files are written under a normalized local_dir, and every chunk filename is
resolved and verified to stay inside local_dir (directories included) to block
.. traversal; overwrite=false skips existing files and counts them as skipped.
One transfer per host (mutually exclusive with the one-shot pending registry),
a dedicated McpFileTransfer=0-by-default gate surfaced in the settings dialog,
and audit logging complete the change. upload_file remains future work.
Co-Authored-By: deepseek-v4-pro
Add M1 of MCP remote control (docs/Mcp_RemoteControl_Design.md): the
remote_open / remote_close tools plus the ScreenCtrlSession state machine.
remote_open establishes a hidden screen sub-connection by reusing
WebService::StartRemoteDesktop (COMMAND_SCREEN_SPY -> CScreenSpyDlg ->
RegisterScreenContext), polls for the sub-connection plus its physical
resolution (TOKEN_BITMAPINFO -> NotifyResolutionChange -> GetScreenSize),
then records the session (single device, single session, reverse-mapped
subCtx for OfflineProc cleanup) and returns {session_id, screen_w,
screen_h}. remote_close validates session_id and tears down the
sub-connection idempotently. A McpRemoteControl settings checkbox (default
off, requires McpReadonly=0) gates the tools; every open/close is audited
via WM_SHOWERRORMSG.
Gating: multi-monitor hosts are rejected with -32008 (phase 1 supports only
single monitor, where Observe=main screen and Act=virtual desktop coincide);
the monitor count comes from the client heartbeat RES_RESOLUTION ("N:W*H").
Known limitations (deferred to the injection milestones): mutual exclusion
with human remote-desktop viewing is one-directional in M1 (a human who
joins during an MCP session can tear it down on disconnect), and subCtx is
not yet dereferenced so no liveness re-check is needed until
remote_mouse/remote_keyboard.
Co-Authored-By: deepseek-v4-pro
Add terminal_open / terminal_exec / terminal_close so an AI can hold one
shell session per Windows host and run a sequence of commands with cwd and
environment preserved, instead of the one-shot exec_command.
The persistent terminal is a separate full-command write capability gated by
McpTerminal (default off) plus McpReadonly=0, with no whitelist and full
audit. One device maps to one terminal session via the shared m_TermSessions
map; idle sessions are swept after 300s. terminal_exec rejects commands that
contain & or | (they corrupt the sentinel control-operator chain) as well as
control characters.
Also harden exec_command and terminal_exec against newline/CR injection, fix a
dangling subCtx after an abrupt shell disconnect, and refresh lastActiveAt on
command completion. Add en/zh-TW translations for the new UI strings and a
design document covering both exec_command and the persistent terminal.
Co-Authored-By: deepseek-v4-pro
Add a one-shot exec_command MCP tool that runs a command on a remote
Windows host and returns stdout plus exit code, reusing the Web terminal
link (main-connection COMMAND_SHELL, a shell sub-connection, and a
sentinel command line located via rfind to tolerate ConPTY echo).
The sentinel marker is embedded in the command line ConPTY echoes back,
so it is only treated as hit when it starts a line (preceded by a newline
or the buffer start); this keeps the echoed marker from being mistaken
for the real sentinel when the echo packet arrives before the output.
Execution is gated at Web remote-desktop sensitivity: a read-only mode
(McpReadonly, default on, hides the tool) and a command whitelist
(McpCmdWhitelist) with built-in read-only prefixes. Shell metacharacters
(& | < > ^) are rejected before whitelist matching, and each execution is
recorded in the server audit log.
Extend the MCP settings dialog with the read-only checkbox and a
multi-line whitelist box (commas and newlines both accepted, normalized
to a comma-separated list on save), and add English and Traditional
Chinese mappings for the new UI and audit-log strings.
Co-Authored-By: deepseek-v4-pro
Add an optional MCP server (JSON-RPC 2.0 over Streamable HTTP) exposing
an online-host listing tool, protected by a Bearer token. Disabled by
default; configured via a new "Extensions > MCP Settings" dialog.
- McpServer: httplib + JSON-RPC 2.0 dispatch (initialize/ping/tools/list/tools/call)
- McpSettingsDlg: runtime-created dialog for enable/port/bind/token
- HostJson: extract single-host JSON serialization shared with WebService
- FRP: expose MCP port (union with listening/Web ports) when bound to 0.0.0.0
- i18n: en_US / zh_TW translations
Co-Authored-By: deepseek-v4-pro
