浏览器下载插件
This commit is contained in:
@@ -3,9 +3,8 @@
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*
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* 职责:
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* 1. 接管浏览器下载,转发到 aria2
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* 2. 与本应用(可选)通过 JSON-RPC 通信
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* 3. 提供右键菜单"使用 aria2 下载链接"
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* 4. 预留资源嗅探能力(webRequest 监听)
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* 2. 资源嗅探:识别视频/音频/图片/压缩包/安装包等,存储到内存供 popup 查看
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* 3. 右键菜单"使用 aria2 下载"
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*
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* 注:Service Worker 是短生命周期的,配置需持久化到 chrome.storage
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*/
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@@ -14,14 +13,282 @@
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const DEFAULT_CONFIG = {
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rpcUrl: 'http://127.0.0.1:6800/jsonrpc',
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rpcSecret: '',
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// 是否拦截浏览器原生下载
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interceptDownload: true,
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// 文件大小阈值(字节),超过才转 aria2。0 = 全部转
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minSize: 0,
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// 排除的域名(这些域名的下载走浏览器原生)
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excludeDomains: [],
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// 是否显示桌面通知
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showNotifications: true
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showNotifications: true,
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// 嗅探开关
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sniffEnabled: true,
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// 嗅探的资源类型:只保留视频/音频/图片/压缩包/种子/安装包
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// 其他类型(文档、字幕、json、js、css 等)一律不嗅探
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sniffTypes: ['video', 'audio', 'image', 'archive', 'torrent', 'installer'],
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// 嗅探记录最大数量(避免无限增长)
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sniffMaxItems: 200,
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// 嗅探最小文件大小(字节,0=全部)。仅对有 Content-Length 的请求生效
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sniffMinSize: 1024 * 100, // 100KB
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// 嗅探排除的域名(CDN、统计等噪声)
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sniffExcludeDomains: ['google-analytics.com', 'doubleclick.net', 'facebook.net', 'googletagmanager.com']
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}
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// ===== 非资源扩展名黑名单 =====
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// 这些扩展名即使出现在 URL 中也不是可下载资源(接口、前端资源、数据文件等)
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const NON_RESOURCE_EXTS = new Set([
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// 数据/配置
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'json', 'xml', 'yaml', 'yml', 'toml', 'ini', 'conf', 'env',
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// 前端资源
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'js', 'mjs', 'cjs', 'css', 'scss', 'sass', 'less', 'html', 'htm', 'vue', 'jsx', 'tsx',
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// 字体
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'woff', 'woff2', 'ttf', 'otf', 'eot',
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// 网页元数据
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'ico', 'webmanifest', 'sitemap', 'rss', 'atom',
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// 接口常见后缀(部分 API 返回这些格式)
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'jsonp', 'graphql',
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// 地图/数据
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'map', 'geojson', 'protobuf', 'pb',
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// 模板/源码
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'tpl', 'pug', 'md', 'rst',
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])
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// ===== API 路径关键词黑名单 =====
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// URL 路径包含这些关键词的视为接口请求,不嗅探
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const API_PATH_KEYWORDS = [
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'/api/', '/api/', '/v1/', '/v2/', '/v3/',
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'/init', '/send', '/track', '/log', '/beacon', '/analytics',
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'/collect', '/report', '/event', '/events', '/metrics',
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'/stat', '/stats', '/count', '/click', '/redirect',
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'/auth', '/login', '/logout', '/token', '/session',
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'/webhook', '/callback', '/notify',
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'/sentry', '/rum', '/monitor', '/perf',
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'/rpc', '/jsonrpc', '/graphql'
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]
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/**
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* 判断 URL 是否是 API/接口请求(应排除)
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*/
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function isApiRequest(url) {
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let path = ''
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try {
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path = new URL(url).pathname.toLowerCase()
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} catch {
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return false
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}
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// 路径无扩展名且包含 api 关键词
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if (API_PATH_KEYWORDS.some(kw => path.includes(kw))) return true
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// 路径以 /api 开头
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if (path.startsWith('/api') || path.startsWith('/rpc')) return true
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return false
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}
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// ===== 资源类型识别规则 =====
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// 按扩展名 + MIME 类型识别
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// 只保留用户需要的 6 类:视频/音频/图片/压缩包/种子/安装包
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const RESOURCE_RULES = [
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{
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type: 'video',
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label: '视频',
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color: '#ef4444',
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exts: ['mp4', 'mkv', 'avi', 'mov', 'wmv', 'flv', 'webm', 'm4v', 'mpg', 'mpeg', 'ts', 'm3u8', 'rmvb', 'rm', 'm4s', 'f4v', '3gp', 'ogv'],
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mimes: ['video/']
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},
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{
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type: 'audio',
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label: '音频',
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color: '#f59e0b',
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exts: ['mp3', 'flac', 'ape', 'wav', 'aac', 'ogg', 'm4a', 'wma', 'opus', 'm3u'],
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mimes: ['audio/']
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},
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{
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type: 'image',
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label: '图片',
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color: '#10b981',
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exts: ['jpg', 'jpeg', 'png', 'gif', 'webp', 'bmp', 'svg', 'tiff', 'heic', 'avif'],
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mimes: ['image/']
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},
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{
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type: 'archive',
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label: '压缩包',
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color: '#8b5cf6',
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exts: ['zip', 'rar', '7z', 'tar', 'gz', 'bz2', 'xz', 'iso', 'cab', 'tgz', 'tbz2'],
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mimes: ['application/zip', 'application/x-rar', 'application/x-7z', 'application/x-tar', 'application/gzip', 'application/x-iso9660-image']
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},
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{
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type: 'installer',
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label: '安装包',
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color: '#3b82f6',
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exts: ['exe', 'msi', 'dmg', 'pkg', 'deb', 'rpm', 'appimage', 'apk', 'ipa'],
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mimes: ['application/x-msdownload', 'application/x-msi', 'application/vnd.android.package-archive']
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},
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{
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type: 'torrent',
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label: '种子',
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color: '#14b8a6',
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exts: ['torrent'],
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mimes: ['application/x-bittorrent']
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}
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]
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// ===== 流媒体 URL 路径关键词 =====
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// B站等流媒体通过 xhr 加载 .m4s 分片,URL 路径包含这些关键词且 MIME 为二进制流时识别为视频
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const STREAM_PATH_KEYWORDS = [
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'/upgcxcode/', // B站视频分片
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'/video/', // 通用视频路径
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'/media/', // 通用媒体路径
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'/stream/', // 流媒体路径
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'/play/', // 播放路径
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'/dash/', // DASH 流
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'/hls/', // HLS 流
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'/video/', // 视频流
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]
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/**
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* 识别资源类型
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* @param {string} url
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* @param {string} [mimeType]
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* @returns {{type:string,label:string,color:string}|null} 匹配失败返回 null(不嗅探)
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*/
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function identifyResource(url, mimeType) {
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let path = url
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let pathname = ''
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try {
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const u = new URL(url)
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path = u.pathname
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pathname = u.pathname.toLowerCase()
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} catch { /* ignore */ }
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// 去掉查询参数后取扩展名
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const ext = path.split('?')[0].split('/').pop()?.split('.').pop()?.toLowerCase() || ''
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// 非资源扩展名黑名单(json/js/css 等)直接排除
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if (ext && NON_RESOURCE_EXTS.has(ext)) return null
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// API 接口请求排除
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if (isApiRequest(url)) return null
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// 先按扩展名 + MIME 匹配规则
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for (const rule of RESOURCE_RULES) {
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if (ext && rule.exts.includes(ext)) return rule
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if (mimeType && rule.mimes.some(m => mimeType.toLowerCase().startsWith(m))) return rule
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}
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// 流媒体特殊识别:MIME 为二进制流且 URL 路径含视频关键词,识别为视频
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// 这能抓到 B站等没有扩展名但通过路径关键词标识的流媒体分片
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if (mimeType && (mimeType === 'application/octet-stream' || mimeType === 'application/vnd.apple.mpegurl' || mimeType === 'video/mp2t')) {
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if (STREAM_PATH_KEYWORDS.some(kw => pathname.includes(kw))) {
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return RESOURCE_RULES[0] // video
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}
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}
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// 未命中任何规则,不视为资源(避免 json/js 等被误判为"其他")
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return null
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}
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/**
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* 从 URL 提取文件名
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*/
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function extractFilename(url, contentDisposition) {
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// 优先从 Content-Disposition 提取
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if (contentDisposition) {
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const m = contentDisposition.match(/filename\*?=(?:UTF-8'')?["']?([^"';]+)/i)
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if (m && m[1]) {
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try { return decodeURIComponent(m[1]) } catch { return m[1] }
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}
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}
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// 从 URL 提取
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try {
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const u = new URL(url)
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const name = u.pathname.split('/').pop()
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if (name) return decodeURIComponent(name)
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} catch { /* ignore */ }
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return ''
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}
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/**
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* 格式化文件大小
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*/
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function formatSize(bytes) {
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if (!bytes || bytes <= 0) return '—'
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if (bytes < 1024) return `${bytes} B`
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if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`
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if (bytes < 1024 * 1024 * 1024) return `${(bytes / 1024 / 1024).toFixed(1)} MB`
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return `${(bytes / 1024 / 1024 / 1024).toFixed(2)} GB`
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}
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// ===== 资源嗅探存储 =====
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// 使用 chrome.storage.local 持久化(Service Worker 可能随时重启)
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const SNIFF_STORAGE_KEY = 'sniffedResources'
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// 按 tabId 分组:{ [tabId]: { url, title, resources: [] } }
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// 同时保留一个全局合并视图
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async function getSniffedAll() {
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const data = await chrome.storage.local.get(SNIFF_STORAGE_KEY)
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return data[SNIFF_STORAGE_KEY] || {}
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}
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async function saveSniffedAll(all) {
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await chrome.storage.local.set({ [SNIFF_STORAGE_KEY]: all })
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}
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/**
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* 添加一条嗅探记录
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*/
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async function addSniffedItem(tabId, tabUrl, tabTitle, item) {
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const config = await getConfig()
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if (!config.sniffEnabled) return
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if (!config.sniffTypes.includes(item.type)) return
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// 排除域名
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try {
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const host = new URL(item.url).hostname
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if (config.sniffExcludeDomains.some(d => host.includes(d))) return
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} catch { /* ignore */ }
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const all = await getSniffedAll()
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if (!all[tabId]) {
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all[tabId] = { url: tabUrl, title: tabTitle, resources: [], updatedAt: Date.now() }
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}
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const tabData = all[tabId]
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tabData.url = tabUrl
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tabData.title = tabTitle
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tabData.updatedAt = Date.now()
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// 去重(同 URL 不重复添加,但更新 size/filename)
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const existing = tabData.resources.find(r => r.url === item.url)
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if (existing) {
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if (item.size && !existing.size) existing.size = item.size
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if (item.filename && !existing.filename) existing.filename = item.filename
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existing.lastSeen = Date.now()
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} else {
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tabData.resources.push(item)
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// 限制单 tab 资源数
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if (tabData.resources.length > 100) {
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tabData.resources = tabData.resources.slice(-100)
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}
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}
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// 限制总 tab 数
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const tabIds = Object.keys(all)
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if (tabIds.length > 50) {
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// 删除最久未更新的
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tabIds.sort((a, b) => (all[a].updatedAt || 0) - (all[b].updatedAt || 0))
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for (let i = 0; i < tabIds.length - 50; i++) delete all[tabIds[i]]
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}
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await saveSniffedAll(all)
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}
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/**
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* 清空所有嗅探记录
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*/
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async function clearSniffedAll() {
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await saveSniffedAll({})
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}
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/**
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* 清空指定 tab 的嗅探记录
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*/
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async function clearSniffedByTab(tabId) {
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const all = await getSniffedAll()
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delete all[tabId]
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await saveSniffedAll(all)
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}
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// ===== 配置读取 =====
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@@ -65,14 +332,15 @@ async function aria2Call(method, params = []) {
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/**
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* 添加 URI 下载任务到 aria2
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* @returns {string} gid
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*/
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async function aria2AddUri(url, filename, referer, cookies) {
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async function aria2AddUri(url, filename, referer, cookies, headers) {
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const options = {}
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if (filename) options.out = filename
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if (referer) options.referer = referer
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if (cookies) options.header = [`Cookie: ${cookies}`]
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// User-Agent 用浏览器默认值更兼容
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const headerList = []
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if (cookies) headerList.push(`Cookie: ${cookies}`)
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if (headers && headers.length) headerList.push(...headers)
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if (headerList.length) options.header = headerList
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options['user-agent'] = navigator.userAgent
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return aria2Call('aria2.addUri', [[url], options])
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}
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@@ -81,11 +349,9 @@ async function aria2AddUri(url, filename, referer, cookies) {
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async function shouldIntercept(downloadItem) {
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const config = await getConfig()
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if (!config.interceptDownload) return false
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// 大小阈值
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if (config.minSize > 0 && downloadItem.fileSize > 0 && downloadItem.fileSize < config.minSize) {
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return false
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}
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// 域名排除
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try {
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const url = new URL(downloadItem.finalUrl || downloadItem.url)
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if (config.excludeDomains.some(d => url.hostname.includes(d))) {
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@@ -98,7 +364,6 @@ async function shouldIntercept(downloadItem) {
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async function handleDownloadCreated(downloadItem) {
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if (!await shouldIntercept(downloadItem)) return
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// 立即取消浏览器原生下载
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try {
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await chrome.downloads.cancel(downloadItem.id)
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await chrome.downloads.erase({ id: downloadItem.id })
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@@ -112,7 +377,6 @@ async function handleDownloadCreated(downloadItem) {
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await notify('已添加到 aria2', `${filename || url}\nGID: ${gid}`)
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} catch (e) {
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await notify('aria2 添加失败', `${filename || url}\n${e.message}`)
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// 失败时把 URL 重新交给浏览器下载
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try { await chrome.downloads.download({ url }) } catch { /* ignore */ }
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}
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}
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@@ -139,9 +403,9 @@ chrome.runtime.onInstalled.addListener(() => {
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contexts: ['link']
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})
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chrome.contextMenus.create({
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id: 'thing-download-page',
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title: '使用 aria2 下载当前页面资源',
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contexts: ['page']
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id: 'thing-download-sniffed',
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title: '查看嗅探到的资源',
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contexts: ['action']
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})
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})
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@@ -161,18 +425,173 @@ chrome.contextMenus.onClicked.addListener(async (info, tab) => {
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// ===== 下载事件监听 =====
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chrome.downloads.onCreated.addListener(handleDownloadCreated)
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// ===== 资源嗅探(预留,仅日志,不拦截)=====
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// 后续可启用:监听页面媒体资源,提供"嗅探到的资源"列表
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chrome.webRequest.onBeforeRequest.addListener(
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(details) => {
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// 预留:识别视频/音频流等可下载资源
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// 当前不处理,仅保留权限和入口
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return undefined
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// ===== 资源嗅探:webRequest 监听 =====
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// 监听所有请求的响应头,由 identifyResource 统一识别
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// 不再按请求类型过滤(B站等流媒体通过 xhr 加载 .m4s 分片)
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chrome.webRequest.onHeadersReceived.addListener(
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async (details) => {
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// 跳过扩展自身的请求
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if (details.initiator && details.initiator.startsWith('chrome-extension://')) return
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const config = await getConfig()
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if (!config.sniffEnabled) return
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// 提取 MIME 和大小
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let mimeType = ''
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let contentLength = 0
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let contentDisposition = ''
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for (const h of (details.responseHeaders || [])) {
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const name = h.name.toLowerCase()
|
||||
if (name === 'content-type') mimeType = (h.value || '').split(';')[0].trim()
|
||||
else if (name === 'content-length') contentLength = parseInt(h.value, 10) || 0
|
||||
else if (name === 'content-disposition') contentDisposition = h.value || ''
|
||||
}
|
||||
|
||||
// 识别资源类型(内部已排除 API 请求和 json/js 等非资源扩展名)
|
||||
const matched = identifyResource(details.url, mimeType)
|
||||
if (!matched) return
|
||||
|
||||
// 按 sniffTypes 配置过滤
|
||||
if (!config.sniffTypes.includes(matched.type)) return
|
||||
|
||||
// 大小阈值过滤(仅对有 Content-Length 的生效)
|
||||
// 注意:流媒体分片的 Content-Length 是单个分片大小,不是完整视频大小
|
||||
// 但仍记录,至少能让用户看到单个请求大小
|
||||
if (config.sniffMinSize > 0 && contentLength > 0 && contentLength < config.sniffMinSize) return
|
||||
|
||||
// 获取 tab 信息
|
||||
let tabUrl = '', tabTitle = ''
|
||||
if (details.tabId && details.tabId > 0) {
|
||||
try {
|
||||
const tab = await chrome.tabs.get(details.tabId)
|
||||
tabUrl = tab.url || ''
|
||||
tabTitle = tab.title || ''
|
||||
} catch { /* ignore */ }
|
||||
}
|
||||
|
||||
const filename = extractFilename(details.url, contentDisposition)
|
||||
const item = {
|
||||
url: details.url,
|
||||
filename,
|
||||
type: matched.type,
|
||||
typeLabel: matched.label,
|
||||
color: matched.color,
|
||||
mimeType,
|
||||
size: contentLength,
|
||||
sizeText: formatSize(contentLength),
|
||||
tabId: details.tabId,
|
||||
tabUrl,
|
||||
tabTitle,
|
||||
firstSeen: Date.now(),
|
||||
lastSeen: Date.now()
|
||||
}
|
||||
await addSniffedItem(String(details.tabId || '0'), tabUrl, tabTitle, item)
|
||||
},
|
||||
{ urls: ['<all_urls>'] },
|
||||
[]
|
||||
['responseHeaders']
|
||||
)
|
||||
|
||||
/**
|
||||
* 额外嗅探:通过 chrome.scripting 注入到页面,扫描 <video>/<audio>/<img><a href> 等
|
||||
* 这能抓到 webRequest 抓不到的静态资源(如 src 直接写在 HTML 里的)
|
||||
* 还能抓到 blob: URL(MSE 流媒体,B站等常用)
|
||||
*/
|
||||
async function sniffTabResources(tabId) {
|
||||
const config = await getConfig()
|
||||
if (!config.sniffEnabled) return
|
||||
try {
|
||||
const results = await chrome.scripting.executeScript({
|
||||
target: { tabId },
|
||||
func: () => {
|
||||
const found = []
|
||||
// video/audio/source - 包括 currentSrc(可能指向 blob:)
|
||||
document.querySelectorAll('video, audio, source').forEach(el => {
|
||||
const src = el.src || el.getAttribute('src') || el.currentSrc
|
||||
if (src) {
|
||||
found.push({ url: src, tag: el.tagName.toLowerCase(), isBlob: src.startsWith('blob:') })
|
||||
}
|
||||
})
|
||||
// img
|
||||
document.querySelectorAll('img[src]').forEach(el => {
|
||||
const src = el.src || el.getAttribute('src')
|
||||
if (src) found.push({ url: src, tag: 'img', isBlob: false })
|
||||
})
|
||||
// a[href] 指向资源文件的
|
||||
document.querySelectorAll('a[href]').forEach(el => {
|
||||
const href = el.href
|
||||
if (!href) return
|
||||
const ext = href.split('?')[0].split('.').pop()?.toLowerCase() || ''
|
||||
const resourceExts = ['mp4','mkv','avi','mov','mp3','flac','wav','zip','rar','7z','exe','msi','dmg','pkg','torrent','iso','apk','ipa','webm','m4v','m4a','ogg','opus','webp','jpg','jpeg','png','gif','bmp','svg','m4s','ts','flv']
|
||||
if (resourceExts.includes(ext)) {
|
||||
found.push({ url: href, tag: 'a', isBlob: false })
|
||||
}
|
||||
})
|
||||
return found
|
||||
}
|
||||
})
|
||||
if (!results || !results[0]) return
|
||||
const items = results[0].result || []
|
||||
let tab
|
||||
try { tab = await chrome.tabs.get(tabId) } catch { tab = null }
|
||||
for (const it of items) {
|
||||
// blob: URL 无法直接下载(MSE 流),但记录下来让用户知道存在
|
||||
if (it.isBlob) {
|
||||
const tagType = it.tag === 'video' ? 'video' : it.tag === 'audio' ? 'audio' : 'other'
|
||||
if (!config.sniffTypes.includes(tagType)) continue
|
||||
await addSniffedItem(String(tabId), tab?.url || '', tab?.title || '', {
|
||||
url: it.url,
|
||||
filename: `(流媒体 blob) ${tab?.title || ''}`,
|
||||
type: tagType,
|
||||
typeLabel: tagType === 'video' ? '视频' : '音频',
|
||||
color: tagType === 'video' ? '#ef4444' : '#f59e0b',
|
||||
mimeType: '',
|
||||
size: 0,
|
||||
sizeText: 'blob',
|
||||
tabId,
|
||||
tabUrl: tab?.url || '',
|
||||
tabTitle: tab?.title || '',
|
||||
firstSeen: Date.now(),
|
||||
lastSeen: Date.now()
|
||||
})
|
||||
continue
|
||||
}
|
||||
const matched = identifyResource(it.url, '')
|
||||
if (!matched) continue
|
||||
if (!config.sniffTypes.includes(matched.type)) continue
|
||||
const filename = extractFilename(it.url, '')
|
||||
await addSniffedItem(String(tabId), tab?.url || '', tab?.title || '', {
|
||||
url: it.url,
|
||||
filename,
|
||||
type: matched.type,
|
||||
typeLabel: matched.label,
|
||||
color: matched.color,
|
||||
mimeType: '',
|
||||
size: 0,
|
||||
sizeText: '—',
|
||||
tabId,
|
||||
tabUrl: tab?.url || '',
|
||||
tabTitle: tab?.title || '',
|
||||
firstSeen: Date.now(),
|
||||
lastSeen: Date.now()
|
||||
})
|
||||
}
|
||||
} catch { /* ignore: 可能是无权限页面(chrome:// 等)*/ }
|
||||
}
|
||||
|
||||
// 页面完成加载时触发一次脚本嗅探
|
||||
chrome.tabs.onUpdated.addListener((tabId, changeInfo, tab) => {
|
||||
if (changeInfo.status === 'complete' && tab.url && /^https?:/.test(tab.url)) {
|
||||
sniffTabResources(tabId)
|
||||
}
|
||||
})
|
||||
|
||||
// 标签关闭时清理对应的嗅探记录(可选,避免存储膨胀)
|
||||
chrome.tabs.onRemoved.addListener(async (tabId) => {
|
||||
// 不自动清理,让用户可在 popup 查看历史。仅当数量超限才在 addSniffedItem 中淘汰
|
||||
// 如需自动清理,取消下方注释:
|
||||
// await clearSniffedByTab(String(tabId))
|
||||
})
|
||||
|
||||
// ===== 来自 popup 的消息 =====
|
||||
chrome.runtime.onMessage.addListener((msg, _sender, sendResponse) => {
|
||||
if (msg.type === 'getConfig') {
|
||||
@@ -189,4 +608,30 @@ chrome.runtime.onMessage.addListener((msg, _sender, sendResponse) => {
|
||||
.catch(e => sendResponse({ ok: false, error: e.message }))
|
||||
return true
|
||||
}
|
||||
if (msg.type === 'getSniffed') {
|
||||
getSniffedAll().then(sendResponse)
|
||||
return true
|
||||
}
|
||||
if (msg.type === 'clearSniffed') {
|
||||
clearSniffedAll().then(() => sendResponse({ ok: true }))
|
||||
return true
|
||||
}
|
||||
if (msg.type === 'sniffCurrentTab') {
|
||||
chrome.tabs.query({ active: true, currentWindow: true }).then(async (tabs) => {
|
||||
if (tabs[0]) {
|
||||
await sniffTabResources(tabs[0].id)
|
||||
sendResponse({ ok: true })
|
||||
} else {
|
||||
sendResponse({ ok: false, error: '无活动标签' })
|
||||
}
|
||||
})
|
||||
return true
|
||||
}
|
||||
if (msg.type === 'downloadSniffed') {
|
||||
const { url, filename, referer } = msg
|
||||
aria2AddUri(url, filename, referer || '', '')
|
||||
.then(gid => sendResponse({ ok: true, gid }))
|
||||
.catch(e => sendResponse({ ok: false, error: e.message }))
|
||||
return true
|
||||
}
|
||||
})
|
||||
|
||||
Reference in New Issue
Block a user