Init: Migrate SimpleRemoter (Since v1.3.1) to Gitea

common/IPWhitelist.h

@@ -0,0 +1,149 @@
+// IPWhitelist.h - IP 白名单管理 (单例)
+// 用于多处共享白名单检查：连接限制、DLL 限流等
+
+#pragma once
+#include <string>
+#include <set>
+
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <pthread.h>
+#endif
+
+class IPWhitelist {
+public:
+    static IPWhitelist& getInstance() {
+        static IPWhitelist instance;
+        return instance;
+    }
+
+    // 从配置字符串加载白名单 (格式: "192.168.1.1;10.0.0.1;172.16.0.0/24")
+    void Load(const std::string& configValue) {
+        AutoLock lock(m_Lock);
+        m_IPs.clear();
+
+        if (configValue.empty()) {
+            return;
+        }
+
+        // 按分号分割
+        size_t start = 0;
+        size_t end = 0;
+        while ((end = configValue.find(';', start)) != std::string::npos) {
+            AddIPInternal(configValue.substr(start, end - start));
+            start = end + 1;
+        }
+        // 最后一个 IP
+        AddIPInternal(configValue.substr(start));
+    }
+
+    // 检查 IP 是否在白名单中
+    bool IsWhitelisted(const std::string& ip) {
+        // 本地地址始终白名单（无需加锁）
+        if (ip == "127.0.0.1" || ip == "::1") {
+            return true;
+        }
+
+        AutoLock lock(m_Lock);
+        return m_IPs.find(ip) != m_IPs.end();
+    }
+
+    // 获取白名单数量
+    size_t Count() {
+        AutoLock lock(m_Lock);
+        return m_IPs.size();
+    }
+
+    // 添加 IP 到白名单
+    void AddIP(const std::string& ip) {
+        AutoLock lock(m_Lock);
+        AddIPInternal(ip);
+    }
+
+    // 从白名单移除 IP
+    void RemoveIP(const std::string& ip) {
+        AutoLock lock(m_Lock);
+        m_IPs.erase(ip);
+    }
+
+    // 获取所有白名单 IP（用于显示）
+    std::set<std::string> GetAll() {
+        AutoLock lock(m_Lock);
+        return m_IPs;
+    }
+
+    // 清空白名单
+    void Clear() {
+        AutoLock lock(m_Lock);
+        m_IPs.clear();
+    }
+
+    // 导出为配置字符串
+    std::string Export() {
+        AutoLock lock(m_Lock);
+        std::string result;
+        for (const auto& ip : m_IPs) {
+            if (!result.empty()) result += ";";
+            result += ip;
+        }
+        return result;
+    }
+
+private:
+    // RAII 锁，异常安全
+#ifdef _WIN32
+    class AutoLock {
+    public:
+        AutoLock(CRITICAL_SECTION& cs) : m_cs(cs) { EnterCriticalSection(&m_cs); }
+        ~AutoLock() { LeaveCriticalSection(&m_cs); }
+    private:
+        CRITICAL_SECTION& m_cs;
+    };
+#else
+    class AutoLock {
+    public:
+        AutoLock(pthread_mutex_t& mtx) : m_mtx(mtx) { pthread_mutex_lock(&m_mtx); }
+        ~AutoLock() { pthread_mutex_unlock(&m_mtx); }
+    private:
+        pthread_mutex_t& m_mtx;
+    };
+#endif
+
+    IPWhitelist() {
+#ifdef _WIN32
+        InitializeCriticalSection(&m_Lock);
+#else
+        pthread_mutex_init(&m_Lock, nullptr);
+#endif
+    }
+
+    ~IPWhitelist() {
+#ifdef _WIN32
+        DeleteCriticalSection(&m_Lock);
+#else
+        pthread_mutex_destroy(&m_Lock);
+#endif
+    }
+
+    // 禁止拷贝
+    IPWhitelist(const IPWhitelist&) = delete;
+    IPWhitelist& operator=(const IPWhitelist&) = delete;
+
+    void AddIPInternal(const std::string& ip) {
+        std::string trimmed = ip;
+        // 去除空格
+        while (!trimmed.empty() && trimmed.front() == ' ') trimmed.erase(0, 1);
+        while (!trimmed.empty() && trimmed.back() == ' ') trimmed.pop_back();
+        if (!trimmed.empty()) {
+            m_IPs.insert(trimmed);
+        }
+    }
+
+    std::set<std::string> m_IPs;
+#ifdef _WIN32
+    CRITICAL_SECTION m_Lock;
+#else
+    pthread_mutex_t m_Lock;
+#endif
+};