add proxy switch demo

public/proxy/proxy-auth.js

@@ -0,0 +1,98 @@
+// 代理认证管理
+export class ProxyAuth {
+    static async setupAuthListener() {
+        try {
+            // 保存认证信息到 storage
+            const saveAuth = async (config) => {
+                await chrome.storage.local.set({
+                    proxyAuth: {
+                        username: config.username,
+                        password: config.password,
+                        timestamp: Date.now()
+                    }
+                });
+            };
+
+            // 获取认证信息
+            const getAuth = async () => {
+                const result = await chrome.storage.local.get('proxyAuth');
+                return result.proxyAuth;
+            };
+
+            // 清除认证信息
+            const clearAuth = async () => {
+                await chrome.storage.local.remove('proxyAuth');
+            };
+
+            return {
+                saveAuth,
+                getAuth,
+                clearAuth
+            };
+        } catch (error) {
+            console.error('Error setting up auth listener:', error);
+            return null;
+        }
+    }
+
+    static setupErrorHandler() {
+        // 在 Manifest V3 中，我们不能使用 chrome.proxy.onProxyError
+        // 所以我们只记录错误到 storage
+        try {
+            const logError = async (error) => {
+                const errors = await chrome.storage.local.get('proxyErrors') || [];
+                errors.push({
+                    timestamp: Date.now(),
+                    error: error.message || error
+                });
+                await chrome.storage.local.set({
+                    proxyErrors: errors.slice(-100) // 只保留最近100条错误记录
+                });
+            };
+
+            return { logError };
+        } catch (error) {
+            console.error('Error setting up error handler:', error);
+            return null;
+        }
+    }
+
+    // 设置代理认证信息
+    static async setProxyAuth(username, password) {
+        try {
+            await chrome.storage.local.set({
+                proxyAuth: {
+                    username,
+                    password,
+                    timestamp: Date.now()
+                }
+            });
+            return true;
+        } catch (error) {
+            console.error('Error setting proxy auth:', error);
+            return false;
+        }
+    }
+
+    // 获取代理认证信息
+    static async getProxyAuth() {
+        try {
+            const result = await chrome.storage.local.get('proxyAuth');
+            return result.proxyAuth || null;
+        } catch (error) {
+            console.error('Error getting proxy auth:', error);
+            return null;
+        }
+    }
+
+    // 清除代理认证信息
+    static async clearProxyAuth() {
+        try {
+            await chrome.storage.local.remove('proxyAuth');
+            return true;
+        } catch (error) {
+            console.error('Error clearing proxy auth:', error);
+            return false;
+        }
+    }
+}