Reader

[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_153":154,"_155":156},"routes/_app.x.$handle.$name",{"_94":93,"_32":45,"_102":84,"_27":103,"_13":14,"_104":-5,"_11":105,"_106":107,"_108":109,"_110":111,"_112":113,"_20":-5,"_114":-5,"_115":-5,"_116":25,"_117":118,"_119":120,"_121":-5,"_122":-5,"_123":124},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":-5,"_18":-5},"project",{"_43":44,"_32":45,"_38":46,"_47":-5,"_48":25,"_49":50,"_51":50,"_52":-5,"_53":-5,"_18":54,"_55":-5,"_56":25,"_57":-5,"_58":-5,"_59":60,"_61":62,"_63":-5,"_64":-5,"_65":-5,"_66":-5,"_67":68,"_69":68,"_70":71,"_72":71,"_73":71,"_74":68,"_75":68,"_76":77,"_78":79,"_80":81,"_82":25},"version",6,"changes",[19],"aiChatInfo","userId",{"_20":21,"_22":23,"_24":25,"_26":25,"_27":28,"_29":28},"file",{"_30":31,"_32":28,"_33":34,"_35":37,"_38":39,"_40":14,"_41":42,"_24":25},"previous",{"_30":31,"_32":28,"_33":34,"_35":36},"deleted",false,"deletedHere","path","main.ts","latestPath","fileId","5c05a538-4db2-11f1-b37e-ee650bb23af1","name","fileType","http","content","export default async function (req: Request): Promise {\n const corsHeaders = {\n \"Access-Control-Allow-Origin\": \"*\",\n \"Access-Control-Allow-Methods\": \"GET, OPTIONS\",\n \"Access-Control-Allow-Headers\": \"Content-Type, X-Atcoder-Url\",\n };\n\n if (req.method === \"OPTIONS\") {\n return new Response(null, { headers: corsHeaders });\n }\n\n // ── API MODE: X-Atcoder-Url header present → return JSON ─────────────────\n if (req.method === \"GET\" && req.headers.get(\"X-Atcoder-Url\")) {\n const taskUrl = req.headers.get(\"X-Atcoder-Url\")!;\n\n if (!taskUrl.startsWith(\"https://atcoder.jp/\")) {\n return Response.json(\n { error: \"Only atcoder.jp URLs are allowed\" },\n { status: 403, headers: corsHeaders },\n );\n }\n\n const upstream = await fetch(taskUrl, {\n headers: {\n \"User-Agent\": \"Mozilla/5.0 (compatible; Reader/1.0)\",\n \"Accept\": \"text/html,application/xhtml+xml\",\n \"Accept-Language\": \"en-US,en;q=0.9,ja;q=0.8\",\n },\n });\n\n if (!upstream.ok) {\n return Response.json(\n { error: `Upstream returned ${upstream.status}` },\n { status: upstream.status, headers: corsHeaders },\n );\n }\n\n const html = await upstream.text();\n\n // Title\n const titleMatch = html.match(/([\\s\\S]*?)<\\/span>/);\n const title = titleMatch\n ? titleMatch[1].replace(/<[^>]+>/g, \"\").trim()\n : \"\";\n\n // Time / memory limits\n const timeLimitMatch = html.match(\n /Time Limit[^<]*<\\/td>\\s*]*>([^<]+)/,\n );\n const memLimitMatch = html.match(\n /Memory Limit[^<]*<\\/td>\\s*]*>([^<]+)/,\n );\n const timeLimit = timeLimitMatch ? timeLimitMatch[1].trim() : \"\";\n const memLimit = memLimitMatch ? memLimitMatch[1].trim() : \"\";\n\n // Extract #task-statement — grab everything after the opening div\n const broadMatch = html.match(\n /]+id=\"task-statement\"[^>]*>([\\s\\S]{100,})/,\n );\n let statement = \"\";\n if (broadMatch) {\n const raw = broadMatch[1];\n const cutoff = raw.indexOf('

0 ? raw.slice(0, cutoff) : raw.slice(0, 30000);\n }\n\n // Clean up HTML\n statement = statement\n .replace(//gi, \"\")\n .replace(//gi, \"\")\n // prefix classes to avoid style collisions in the page\n .replace(/class=\"([^\"]*)\"/g, 'class=\"ac-$1\"')\n // fix relative paths\n .replace(/src=\"\\/([^\"]*)\"/g, 'src=\"https://atcoder.jp/$1\"')\n .replace(/href=\"\\/([^\"]*)\"/g, 'href=\"https://atcoder.jp/$1\"');\n\n return Response.json(\n { ok: true, title, timeLimit, memLimit, statement, sourceUrl: taskUrl },\n { headers: { ...corsHeaders, \"Content-Type\": \"application/json\" } },\n );\n }\n\n // ── UI MODE: no API header → serve the HTML page ─────────────────────────\n if (req.method === \"GET\") {\n const selfUrl = new URL(req.url).origin + new URL(req.url).pathname;\n\n const page = `\n\n\n\n\nReader\n\n

Diff · v6