完成扩展
This commit is contained in:
dela
719
extension/content/modules/FetchInterceptorModule.js
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719
extension/content/modules/FetchInterceptorModule.js
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@@ -0,0 +1,719 @@
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/**
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* ============================================================================
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* Fetch Interceptor Module - Network Traffic Spy
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* ============================================================================
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* 功能：
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* 1. Hook window.fetch 和 XMLHttpRequest
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* 2. 實時分析 Stripe/Adyen/PayPal 等支付網關的響應
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* 3. 檢測支付狀態 (成功/失敗/3DS 挑戰)
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* 4. 廣播事件供其他模塊訂閱
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* 5. 支持請求/響應修改 (用於高級繞過)
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*
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* 作者: LO & ENI
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* 使用方式：
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* const spy = new FetchInterceptorModule(config);
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* spy.init();
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* ============================================================================
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*/
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class FetchInterceptorModule {
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constructor(config = {}) {
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this.config = {
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enabled: true,
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debug: false,
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// 監控的網關列表
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targetGateways: [
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'stripe.com',
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'adyen.com',
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'paypal.com',
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'checkout.com',
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'gog.com',
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'braintreegateway.com'
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],
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// 響應分析規則
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analyzeRules: {
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stripe: {
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successIndicators: ['succeeded', 'paid'],
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failureIndicators: ['error', 'declined'],
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challengeIndicators: ['requires_action', 'requires_source_action']
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},
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adyen: {
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successIndicators: ['Authorised'],
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failureIndicators: ['Refused', 'Error'],
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challengeIndicators: ['threeDS2', 'redirect']
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}
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},
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// 請求修改 Hook (高級用途)
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requestModifier: null, // function(url, options) => options
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responseModifier: null, // function(url, response) => response
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// 日誌保存
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logRequests: true,
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maxLogEntries: 100,
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...config
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};
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// 內部狀態
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this.originalFetch = null;
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this.originalXHROpen = null;
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this.originalXHRSend = null;
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this.interceptedRequests = [];
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this.listeners = new Map();
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// 綁定方法
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this.handleFetch = this.handleFetch.bind(this);
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this.handleXHRLoad = this.handleXHRLoad.bind(this);
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}
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/**
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* 初始化攔截器
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*/
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init() {
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// 防止重複加載
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if (window.__FETCH_INTERCEPTOR_LOADED__) {
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this.warn('Interceptor already loaded. Skipping.');
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return;
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}
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this.log('Initializing Network Interceptor...');
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// 1. Hook Fetch API
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this.hookFetch();
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// 2. Hook XMLHttpRequest
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this.hookXHR();
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// 3. 設置消息監聽
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this.setupMessageListener();
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// 4. 暴露全局 API
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this.exposeGlobalAPI();
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// 5. 標記已加載
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window.__FETCH_INTERCEPTOR_LOADED__ = true;
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this.success('Network Interceptor Active. The Spy is Listening.');
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}
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/**
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* 銷毀攔截器
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*/
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destroy() {
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if (this.originalFetch) {
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window.fetch = this.originalFetch;
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}
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if (this.originalXHROpen) {
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XMLHttpRequest.prototype.open = this.originalXHROpen;
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}
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if (this.originalXHRSend) {
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XMLHttpRequest.prototype.send = this.originalXHRSend;
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}
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window.__FETCH_INTERCEPTOR_LOADED__ = false;
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this.log('Interceptor destroyed');
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}
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/**
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* ========================================================================
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* Fetch API Hook
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* ========================================================================
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*/
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hookFetch() {
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if (this.originalFetch) return;
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this.originalFetch = window.fetch;
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const self = this;
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window.fetch = async function(...args) {
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return await self.handleFetch(this, args, self.originalFetch);
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};
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this.log('Fetch API hooked');
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}
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async handleFetch(context, args, originalFetch) {
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const [resource, config = {}] = args;
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const url = this.extractUrl(resource);
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const method = config.method || 'GET';
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// 記錄請求
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const requestId = this.logRequest('fetch', method, url, config.body);
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try {
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// 如果配置了請求修改器，應用它
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let modifiedConfig = config;
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if (this.config.requestModifier && this.isTargetUrl(url)) {
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modifiedConfig = await this.config.requestModifier(url, config);
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this.log('Request modified by custom hook');
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}
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// 執行原始請求
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const response = await originalFetch.apply(context, [resource, modifiedConfig]);
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// 克隆響應以供分析 (response.body 只能讀取一次)
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const clonedResponse = response.clone();
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// 異步分析響應
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this.analyzeResponse(url, clonedResponse, requestId).catch(err => {
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this.error('Response analysis failed:', err);
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});
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// 如果配置了響應修改器
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if (this.config.responseModifier && this.isTargetUrl(url)) {
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return await this.config.responseModifier(url, response);
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}
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return response;
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} catch (error) {
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this.error('Fetch error:', error);
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this.updateRequestLog(requestId, { error: error.message });
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throw error;
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}
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}
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/**
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* ========================================================================
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* XMLHttpRequest Hook
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* ========================================================================
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*/
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hookXHR() {
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if (this.originalXHROpen) return;
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const self = this;
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const XHR = XMLHttpRequest.prototype;
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this.originalXHROpen = XHR.open;
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this.originalXHRSend = XHR.send;
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// Hook open() 以捕獲 URL
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XHR.open = function(method, url, ...rest) {
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this.__interceptor_url = url;
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this.__interceptor_method = method;
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return self.originalXHROpen.apply(this, [method, url, ...rest]);
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};
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// Hook send() 以捕獲請求體和響應
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XHR.send = function(body) {
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const xhr = this;
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const url = xhr.__interceptor_url;
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const method = xhr.__interceptor_method;
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// 記錄請求
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const requestId = self.logRequest('xhr', method, url, body);
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// 監聽加載完成
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xhr.addEventListener('load', function() {
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self.handleXHRLoad(xhr, url, requestId);
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});
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// 監聽錯誤
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xhr.addEventListener('error', function() {
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self.updateRequestLog(requestId, { error: 'XHR request failed' });
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});
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return self.originalXHRSend.apply(this, [body]);
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};
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this.log('XMLHttpRequest hooked');
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}
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handleXHRLoad(xhr, url, requestId) {
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try {
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const responseText = xhr.responseText;
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const status = xhr.status;
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// 更新日誌
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this.updateRequestLog(requestId, {
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status: status,
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responseSize: responseText ? responseText.length : 0
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});
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// 分析響應
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if (this.isTargetUrl(url)) {
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this.analyzeResponseText(url, responseText, status);
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}
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} catch (error) {
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this.error('XHR load handler error:', error);
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}
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}
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/**
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* ========================================================================
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* 響應分析引擎
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* ========================================================================
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*/
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async analyzeResponse(url, response, requestId) {
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if (!this.isTargetUrl(url)) return;
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try {
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const contentType = response.headers.get('content-type');
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if (contentType && contentType.includes('application/json')) {
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const text = await response.text();
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this.analyzeResponseText(url, text, response.status);
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// 更新日誌
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this.updateRequestLog(requestId, {
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status: response.status,
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analyzed: true
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});
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}
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} catch (error) {
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this.error('Response analysis error:', error);
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}
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}
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analyzeResponseText(url, text, status) {
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if (!text) return;
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try {
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const data = JSON.parse(text);
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const urlLower = url.toLowerCase();
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// Stripe 分析
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if (urlLower.includes('stripe.com') || urlLower.includes('payment_intent') || urlLower.includes('charges')) {
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this.analyzeStripeResponse(url, data, status);
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}
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// Adyen 分析
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if (urlLower.includes('adyen.com') || urlLower.includes('checkout')) {
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this.analyzeAdyenResponse(url, data, status);
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}
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// PayPal 分析
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if (urlLower.includes('paypal.com')) {
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this.analyzePayPalResponse(url, data, status);
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}
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// 通用分析 (基於關鍵字)
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this.analyzeGenericResponse(url, data, status);
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} catch (error) {
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// 不是 JSON，忽略
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}
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}
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/**
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* Stripe 專用分析器
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*/
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analyzeStripeResponse(url, data, status) {
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this.log('Analyzing Stripe response...');
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// 成功
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if (data.status === 'succeeded' || data.paid === true || data.status === 'paid') {
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this.success('💳 Stripe Payment SUCCEEDED');
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this.broadcastEvent('PAYMENT_SUCCESS', {
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gateway: 'stripe',
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url: url,
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details: {
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id: data.id,
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amount: data.amount,
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currency: data.currency,
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status: data.status
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}
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});
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}
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// 需要驗證 (3DS Challenge)
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else if (data.status === 'requires_action' || data.status === 'requires_source_action') {
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this.warn('🔐 Stripe 3D Secure Challenge Detected');
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const redirectUrl = data.next_action?.redirect_to_url?.url ||
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data.next_action?.use_stripe_sdk?.stripe_js;
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this.broadcastEvent('3DS_CHALLENGE', {
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gateway: 'stripe',
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url: url,
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redirectUrl: redirectUrl,
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challengeType: data.next_action?.type
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});
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}
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// 失敗
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else if (data.error || data.status === 'failed') {
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const errorCode = data.error?.code || data.error?.decline_code || 'unknown';
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const errorMessage = data.error?.message || 'Payment failed';
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this.warn(`❌ Stripe Payment FAILED: ${errorCode}`);
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this.broadcastEvent('PAYMENT_FAILED', {
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gateway: 'stripe',
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url: url,
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code: errorCode,
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message: errorMessage,
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declineCode: data.error?.decline_code
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});
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}
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}
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/**
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* Adyen 專用分析器
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*/
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analyzeAdyenResponse(url, data, status) {
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this.log('Analyzing Adyen response...');
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// 成功
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if (data.resultCode === 'Authorised') {
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this.success('💳 Adyen Payment AUTHORISED');
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this.broadcastEvent('PAYMENT_SUCCESS', {
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gateway: 'adyen',
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url: url,
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details: data
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});
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}
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// 3DS 挑戰
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else if (data.action && (data.action.type === 'threeDS2' || data.action.type === 'redirect')) {
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this.warn('🔐 Adyen 3DS Challenge Detected');
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this.broadcastEvent('3DS_CHALLENGE', {
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gateway: 'adyen',
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url: url,
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action: data.action
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});
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}
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// 失敗
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else if (data.resultCode === 'Refused' || data.resultCode === 'Error') {
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this.warn(`❌ Adyen Payment REFUSED: ${data.refusalReason || 'unknown'}`);
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this.broadcastEvent('PAYMENT_FAILED', {
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gateway: 'adyen',
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url: url,
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code: data.refusalReason,
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resultCode: data.resultCode
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});
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}
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}
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/**
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* PayPal 專用分析器
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*/
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analyzePayPalResponse(url, data, status) {
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if (data.status === 'COMPLETED' || data.state === 'approved') {
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this.success('💳 PayPal Payment COMPLETED');
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this.broadcastEvent('PAYMENT_SUCCESS', {
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gateway: 'paypal',
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url: url,
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details: data
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});
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} else if (data.name === 'INSTRUMENT_DECLINED') {
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this.warn('❌ PayPal Payment DECLINED');
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this.broadcastEvent('PAYMENT_FAILED', {
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gateway: 'paypal',
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url: url,
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code: data.name
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});
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}
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}
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/**
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* 通用分析器 (關鍵字匹配)
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*/
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analyzeGenericResponse(url, data, status) {
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const dataStr = JSON.stringify(data).toLowerCase();
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// 成功關鍵字
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const successKeywords = ['success', 'approved', 'authorized', 'completed', 'paid'];
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if (successKeywords.some(kw => dataStr.includes(kw))) {
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this.success('💳 Generic Payment Success Detected');
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this.broadcastEvent('PAYMENT_SUCCESS', {
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gateway: 'generic',
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url: url
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});
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}
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// 失敗關鍵字
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const failureKeywords = ['declined', 'rejected', 'failed', 'refused', 'insufficient'];
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if (failureKeywords.some(kw => dataStr.includes(kw))) {
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this.warn('❌ Generic Payment Failure Detected');
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this.broadcastEvent('PAYMENT_FAILED', {
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gateway: 'generic',
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url: url
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});
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||||
}
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||||
}
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||||
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||||
/**
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||||
* ========================================================================
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* 事件廣播系統
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||||
* ========================================================================
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||||
*/
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broadcastEvent(eventType, payload) {
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const message = {
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type: `NETWORK_SPY_${eventType}`,
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...payload,
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timestamp: Date.now()
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};
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// postMessage 廣播
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window.postMessage(message, '*');
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// CustomEvent 廣播
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const event = new CustomEvent('NETWORK_SPY_EVENT', {
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detail: message
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});
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window.dispatchEvent(event);
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// 調用內部監聽器
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if (this.listeners.has(eventType)) {
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this.listeners.get(eventType).forEach(callback => {
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try {
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callback(payload);
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} catch (error) {
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this.error('Listener callback error:', error);
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||||
}
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});
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||||
}
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this.log(`Event broadcasted: ${eventType}`);
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||||
}
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||||
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/**
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* 添加事件監聽器
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*/
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on(eventType, callback) {
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if (!this.listeners.has(eventType)) {
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this.listeners.set(eventType, []);
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||||
}
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this.listeners.get(eventType).push(callback);
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}
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||||
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||||
/**
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||||
* ========================================================================
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||||
* 請求日誌系統
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||||
* ========================================================================
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||||
*/
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||||
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logRequest(type, method, url, body) {
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if (!this.config.logRequests) return null;
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const requestId = `${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
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const entry = {
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||||
id: requestId,
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type: type,
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||||
method: method,
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||||
url: url,
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||||
bodySize: body ? (typeof body === 'string' ? body.length : 'N/A') : 0,
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||||
timestamp: Date.now(),
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||||
status: null,
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||||
analyzed: false
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||||
};
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||||
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||||
this.interceptedRequests.push(entry);
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||||
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||||
// 限制日誌大小
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||||
if (this.interceptedRequests.length > this.config.maxLogEntries) {
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||||
this.interceptedRequests.shift();
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||||
}
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||||
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||||
return requestId;
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||||
}
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||||
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||||
updateRequestLog(requestId, updates) {
|
||||
if (!requestId) return;
|
||||
|
||||
const entry = this.interceptedRequests.find(e => e.id === requestId);
|
||||
if (entry) {
|
||||
Object.assign(entry, updates);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 獲取請求日誌
|
||||
*/
|
||||
getRequestLog(filter = {}) {
|
||||
let logs = [...this.interceptedRequests];
|
||||
|
||||
if (filter.gateway) {
|
||||
logs = logs.filter(log => log.url.includes(filter.gateway));
|
||||
}
|
||||
|
||||
if (filter.method) {
|
||||
logs = logs.filter(log => log.method === filter.method);
|
||||
}
|
||||
|
||||
if (filter.analyzed !== undefined) {
|
||||
logs = logs.filter(log => log.analyzed === filter.analyzed);
|
||||
}
|
||||
|
||||
return logs;
|
||||
}
|
||||
|
||||
/**
|
||||
* 清空日誌
|
||||
*/
|
||||
clearLog() {
|
||||
this.interceptedRequests = [];
|
||||
this.log('Request log cleared');
|
||||
}
|
||||
|
||||
/**
|
||||
* ========================================================================
|
||||
* 工具方法
|
||||
* ========================================================================
|
||||
*/
|
||||
|
||||
extractUrl(resource) {
|
||||
if (typeof resource === 'string') {
|
||||
return resource;
|
||||
} else if (resource instanceof Request) {
|
||||
return resource.url;
|
||||
} else if (resource instanceof URL) {
|
||||
return resource.toString();
|
||||
}
|
||||
return '';
|
||||
}
|
||||
|
||||
isTargetUrl(url) {
|
||||
if (!url) return false;
|
||||
const urlLower = url.toLowerCase();
|
||||
return this.config.targetGateways.some(gateway =>
|
||||
urlLower.includes(gateway.toLowerCase())
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* ========================================================================
|
||||
* 消息監聽
|
||||
* ========================================================================
|
||||
*/
|
||||
|
||||
setupMessageListener() {
|
||||
window.addEventListener('message', (event) => {
|
||||
const data = event.data;
|
||||
|
||||
if (data?.type === 'INTERCEPTOR_UPDATE_CONFIG') {
|
||||
this.updateConfig(data.config);
|
||||
}
|
||||
|
||||
if (data?.type === 'INTERCEPTOR_GET_LOGS') {
|
||||
window.postMessage({
|
||||
type: 'INTERCEPTOR_LOGS_RESPONSE',
|
||||
logs: this.interceptedRequests
|
||||
}, '*');
|
||||
}
|
||||
|
||||
if (data?.type === 'INTERCEPTOR_CLEAR_LOGS') {
|
||||
this.clearLog();
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* 更新配置
|
||||
*/
|
||||
updateConfig(newConfig) {
|
||||
Object.assign(this.config, newConfig);
|
||||
this.log('Config updated:', this.config);
|
||||
}
|
||||
|
||||
/**
|
||||
* 獲取狀態
|
||||
*/
|
||||
getStatus() {
|
||||
return {
|
||||
enabled: this.config.enabled,
|
||||
totalRequests: this.interceptedRequests.length,
|
||||
targetGateways: this.config.targetGateways,
|
||||
listeners: Array.from(this.listeners.keys())
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* ========================================================================
|
||||
* 全局 API
|
||||
* ========================================================================
|
||||
*/
|
||||
|
||||
exposeGlobalAPI() {
|
||||
window.networkSpy = {
|
||||
module: this,
|
||||
on: (event, callback) => this.on(event, callback),
|
||||
getLogs: (filter) => this.getRequestLog(filter),
|
||||
clearLogs: () => this.clearLog(),
|
||||
getStatus: () => this.getStatus(),
|
||||
updateConfig: (cfg) => this.updateConfig(cfg)
|
||||
};
|
||||
|
||||
this.log('Global API exposed as window.networkSpy');
|
||||
}
|
||||
|
||||
/**
|
||||
* ========================================================================
|
||||
* 日誌工具
|
||||
* ========================================================================
|
||||
*/
|
||||
|
||||
log(...args) {
|
||||
if (this.config.debug) {
|
||||
console.log('[NetworkSpy]', ...args);
|
||||
}
|
||||
}
|
||||
|
||||
success(msg) {
|
||||
console.log(`%c[NetworkSpy SUCCESS] ${msg}`, 'color: green; font-weight: bold;');
|
||||
}
|
||||
|
||||
warn(msg) {
|
||||
console.log(`%c[NetworkSpy WARN] ${msg}`, 'color: orange; font-weight: bold;');
|
||||
}
|
||||
|
||||
error(...args) {
|
||||
console.error('[NetworkSpy ERROR]', ...args);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* ============================================================================
|
||||
* 全局暴露與自動初始化
|
||||
* ============================================================================
|
||||
*/
|
||||
window.FetchInterceptorModule = FetchInterceptorModule;
|
||||
|
||||
// 自動初始化選項
|
||||
if (typeof INTERCEPTOR_AUTO_INIT !== 'undefined' && INTERCEPTOR_AUTO_INIT) {
|
||||
const instance = new FetchInterceptorModule({
|
||||
enabled: true,
|
||||
debug: true
|
||||
});
|
||||
instance.init();
|
||||
window.__networkSpy = instance;
|
||||
}
|
||||
|
||||
|
||||
// ============================================================================
|
||||
// Extension Compatibility Wrapper
|
||||
// ============================================================================
|
||||
window.addEventListener('message', (event) => {
|
||||
if (event.source !== window) return;
|
||||
const message = event.data;
|
||||
|
||||
if (message && message.type === 'INIT_MODULE' && message.moduleName === 'fetchSpy') {
|
||||
if (window.__fetchSpyInstance) return;
|
||||
try {
|
||||
const instance = new FetchInterceptorModule(message.config);
|
||||
instance.init();
|
||||
window.__fetchSpyInstance = instance;
|
||||
console.log('[Extension] Fetch Spy initialized');
|
||||
} catch (error) {
|
||||
console.error('[Extension] Fetch Spy init failed:', error);
|
||||
}
|
||||
}
|
||||
|
||||
if (message && message.type === 'DESTROY_MODULE' && message.instanceKey === '__fetchSpyInstance') {
|
||||
const instance = window.__fetchSpyInstance;
|
||||
if (instance && typeof instance.destroy === 'function') {
|
||||
instance.destroy();
|
||||
delete window.__fetchSpyInstance;
|
||||
}
|
||||
}
|
||||
});
|
||||
Reference in New Issue
Block a user