([\\s\\S]*?)<\\/title>/i);\n if (match && match[1]) {\n return decodeHTMLEntities(match[1].trim());\n }\n return \"\";\n}\n\nfunction decodeHTMLEntities(text: string): string {\n return text.replace(/&/g, '&')\n .replace(/</g, '<')\n .replace(/>/g, '>')\n .replace(/"/g, '\"')\n .replace(/'/g, \"'\")\n .replace(/ /g, ' ');\n}",[],[171,203],"b28e4999-7122-4c85-8934-028b81c0545c","types.ts","b76e03d6-a5b7-11f1-8ee0-1607ee4eb77e",24,["D",1788234398181],"export enum LinkStatus {\n Unknown = 0,\n Valid = 1,\n Invalid = 2,\n Error = 3,\n}\n\nexport interface CheckResult {\n status: LinkStatus;\n http_code: number;\n reason: string;\n title: string;\n}",[],[171,212],"55c0aa3e-50e0-4cec-9a6b-400274126e58","checker.ts","add0c6d8-a5b7-11f1-b05f-1607ee4eb77e",21,["D",1788234388506],"import { type CheckResult } from \"./types.ts\";\nimport { checkXiaohongshu } from \"./platforms/xiaohongshu.ts\";\nimport { checkDouyin } from \"./platforms/douyin.ts\";\nimport { checkDefault } from \"./platforms/default.ts\";\n\n/**\n * 链接检测分发器\n */\nexport async function performCheck(urlStr: string, timeoutSeconds: number): Promise<CheckResult> {\n const platform = detectPlatform(urlStr);\n\n switch (platform) {\n case \"xiaohongshu\":\n return checkXiaohongshu(urlStr, timeoutSeconds);\n case \"douyin\":\n return checkDouyin(urlStr, timeoutSeconds);\n default:\n return checkDefault(urlStr, timeoutSeconds);\n }\n}\n\n/**\n * 识别目标 URL 的所属平台\n */\nfunction detectPlatform(url: string): string {\n const u = url.toLowerCase();\n if (u.includes(\"xiaohongshu.com\") || u.includes(\"xhslink.com\") || u.includes(\"xhslink.cn\")) return \"xiaohongshu\";\n if (u.includes(\"douyin.com\") || u.includes(\"iesdouyin.com\")) return \"douyin\";\n return \"default\";\n}",[],[171,220],"eaaea89a-0a48-42fe-8dd8-03f943d36ff7","xiaohongshu.ts","a12edea6-a5b7-11f1-b873-1607ee4eb77e",18,["D",1788234368277],"import { LinkStatus, type CheckResult } from \"../types.ts\";\nimport { fetchWithTimeout, extractTitle, classifyHTTPStatus } from \"../utils.ts\";\n\n/**\n * 小红书专有检测逻辑\n */\nexport async function checkXiaohongshu(url: string, timeout: number): Promise<CheckResult> {\n const headers = {\n \"Referer\": \"https://www.xiaohongshu.com/\",\n \"Accept\": \"text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8\",\n \"Accept-Language\": \"zh-CN,zh;q=0.9\",\n };\n\n const { response, body, finalURL, error } = await fetchWithTimeout(url, timeout, headers);\n if (error) return error;\n\n const httpCode = response!.status;\n const title = extractTitle(body);\n\n // 1. 检查重定向：若重定向到首页、探索大厅或登录页，则视为失效\n if (isXhsHomepageOrLogin(finalURL, title)) {\n return { status: LinkStatus.Invalid, http_code: httpCode, reason: \"重定向到首页或登录页，链接已失效\", title };\n }\n\n if (httpCode === 200) {\n // 2. 识别风控挑战\n if (isXhsBotChallenge(body, title)) {\n return { status: LinkStatus.Error, http_code: httpCode, reason: \"触发风控验证，无法判断有效性\", title };\n }\n\n // 3. 负向匹配：删除、私密或不存在\n if (isXhsDeleted(body, title)) {\n return { status: LinkStatus.Invalid, http_code: httpCode, reason: \"笔记已删除或不存在\", title };\n }\n\n // 4.1 尝试从内嵌状态数据中提取元数据\n const stateMatch = body.match(/window\\.__INITIAL_STATE__\\s*=\\s*(.*?)<\\/script>/);\n if (stateMatch && stateMatch[1]) {\n try {\n let jsonStr = stateMatch[1].trim();\n jsonStr = jsonStr.replace(/:\\s*undefined/g, ': null');\n const state = JSON.parse(jsonStr);\n const noteId = state.note?.currentNoteId;\n if (noteId && state.note?.noteDetailMap?.[noteId]?.note) {\n const noteTitle = state.note.noteDetailMap[noteId].note.title || title;\n return { status: LinkStatus.Valid, http_code: httpCode, reason: \"OK\", title: noteTitle };\n }\n } catch (e) { }\n }\n\n // 4.2 正向特征匹配：识别 SSR 渲染的专属 OG 标签与具体笔记页特征\n if (isXhsValidContent(body, finalURL)) {\n return { status: LinkStatus.Valid, http_code: httpCode, reason: \"OK\", title };\n }\n\n return { status: LinkStatus.Error, http_code: httpCode, reason: \"页面无有效笔记内容，可能被风控\", title };\n }\n\n const [status, reason] = classifyHTTPStatus(httpCode, body, title);\n return { status, http_code: httpCode, reason, title };\n}\n\nfunction isXhsHomepageOrLogin(url: string, title: string = \"\") {\n const trimmed = url.replace(/\\/+$/, \"\").toLowerCase();\n if (trimmed === \"https://www.xiaohongshu.com\" || trimmed === \"http://www.xiaohongshu.com\" ||\n trimmed === \"https://www.xiaohongshu.com/explore\" || trimmed === \"http://www.xiaohongshu.com/explore\") {\n return true;\n }\n if (title.includes(\"小红书 - 你的生活兴趣社区\") || title.includes(\"小红书 - 标记我的生活\")) {\n return true;\n }\n return trimmed.includes(\"/login\") || trimmed.includes(\"/signin\") || url.includes(\"xiaohongshu.com/?\") || url.includes(\"xiaohongshu.com/#\");\n}\n\nfunction isXhsBotChallenge(body: string, title: string) {\n const combined = (body + title).toLowerCase();\n return [\"滑动验证\", \"请完成安全验证\", \"验证码\", \"访问频率过高\"].some(p => combined.includes(p)) && !body.includes(\"window.__INITIAL_STATE__\");\n}\n\nfunction isXhsDeleted(body: string, title: string) {\n const combined = (body + \" \" + title).toLowerCase();\n const patterns = [\n \"该笔记已被删除\",\n \"笔记不存在\",\n \"当前内容无法展示\",\n \"你要观看的图文不存在\",\n \"内容已被作者删除\",\n \"该内容已被删除\",\n \"页面不存在\",\n \"页面不见了\",\n \"你访问的页面不见了\",\n \"很抱歉，您访问的页面不存在\",\n \"内容不存在\",\n \"该笔记已私密\",\n \"作者已将该内容设为私密\",\n \"暂无权限查看\",\n ];\n return patterns.some(p => combined.includes(p.toLowerCase()));\n}\n\nfunction isXhsValidContent(body: string, finalURL: string) {\n // 1. 存在小红书单篇笔记专属的 OG 标签\n if (body.includes(\"og:xhs:note_\")) return true;\n\n // 2. 存在具体的单篇笔记 og:url\n const ogUrlMatch = body.match(/<meta[^>]+property=[\"']og:url[\"'][^>]+content=[\"']([^\"']+)[\"']/i);\n const ogUrl = ogUrlMatch?.[1];\n if (ogUrl && (ogUrl.includes(\"/explore/\") || ogUrl.includes(\"/discovery/item/\"))) {\n const idPart = ogUrl.split(\"/\").pop();\n if (idPart && idPart !== \"explore\" && idPart.length >= 10) return true;\n }\n\n // 3. 落地页在具体单篇笔记路径下\n if (finalURL.includes(\"/explore/\") || finalURL.includes(\"/discovery/item/\")) {\n try {\n const u = new URL(finalURL);\n const segments = u.pathname.split(\"/\").filter(Boolean);\n const lastSegment = segments[segments.length - 1];\n if (lastSegment && lastSegment !== \"explore\" && lastSegment.length >= 10) {\n return true;\n }\n } catch (e) { }\n }\n\n return false;\n}",[],[171,172,228],["D",1788234350880],[],[171,172,79],"1c0fc958-5deb-42be-9fa0-bba869eab5e3","default.ts","8dfd7554-a5b7-11f1-bba3-1607ee4eb77e",12,["D",1788234332380],"import { type CheckResult } from \"../types.ts\";\nimport { fetchWithTimeout, extractTitle, classifyHTTPStatus } from \"../utils.ts\";\n\nexport async function checkDefault(url: string, timeout: number): Promise<CheckResult> {\n const { response, body, error } = await fetchWithTimeout(url, timeout);\n if (error) return error;\n\n const httpCode = response!.status;\n const title = extractTitle(body);\n const [status, reason] = classifyHTTPStatus(httpCode, body, title);\n\n return {\n status,\n http_code: httpCode,\n reason,\n title: title.slice(0, 100)\n };\n}",[],[171,172,239],"7403b4bb-0728-4deb-914c-a167bd95dc96",9,["D",1788234317233],"directory",[186,187,188],[171,172],"1b1947e5-48c7-40bd-b94f-decd29e33df1",7,["D",1788234305332],[185,189,190,191],[171],["D",1788234227276],["D",1789539031988],{"_11":12,"_139":71},{"_11":12,"_135":71,"_70":71,"_30":69,"_136":137,"_138":24},{"_40":126,"_13":16,"_34":37,"_127":88,"_128":-5,"_129":-5,"_130":-5,"_131":-5,"_132":-5,"_133":14,"_134":12},"ctx",{"_53":-5,"_158":295,"_296":297,"_298":299,"_300":24,"_301":24,"_302":24,"_303":100,"_304":-5,"_305":-7,"_306":-7,"_307":26,"_308":24,"_309":24,"_310":-5,"_311":24,"_312":24,"_313":24,"_314":-5},"ENV",{"_266":267,"_268":269,"_270":16,"_271":272,"_273":274,"_275":276,"_277":278,"_279":280,"_281":282,"_283":284,"_285":286,"_287":288,"_289":290,"_291":292,"_293":294},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"] </article></body></html>

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