${esc(it.title)}

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可调参数（跟在地址后面，第一个用 ? 之后用 &）：

` +\n `` +\n `` +\n `` +\n `` +\n `

参数	作用
`?days=N`	只保留最近 N 天（默认不限）
`?pages=N`	翻几页，每页 10 条（默认 1，最多 3）
`?sponsored=1`	保留付费软文（默认丢弃）
`?diag=0`	不要这条诊断

`;\n\nexport default async function (req: Request): Promise {\n const url = new URL(req.url);\n const q = url.searchParams;\n const path = url.pathname.replace(/^\\/|\\/$/g, \"\");\n const plain = (b: string, s = 200) =>\n new Response(b, {\n status: s,\n headers: { \"Content-Type\": \"text/plain; charset=utf-8\" },\n });\n\n const src = TOPICS[path];\n if (!src) {\n return plain(\n \"可用地址：\\n\" + Object.values(TOPICS).map((t) =>\n ` /${t.key}${\" \".repeat(11 - t.key.length)}${t.title}`\n ).join(\"\\n\") +\n \"\\n\\n参数：?days= ?pages= ?sponsored=1 ?diag=0\\n\",\n 404,\n );\n }\n\n const pages = Math.min(3, Math.max(1, Number(q.get(\"pages\")) || 1));\n const daysRaw = Number(q.get(\"days\"));\n const cutoff = daysRaw > 0\n ? new Date(Date.now() - Math.min(365, daysRaw) * 864e5)\n : null;\n const keepSpon = q.get(\"sponsored\") === \"1\";\n\n const all: Item[] = [];\n for (let p = 1; p <= pages; p++) {\n const r = await fetch(src.url + (p > 1 ? `?paged=${p}` : \"\"), {\n headers: { \"User-Agent\": UA },\n });\n if (!r.ok) {\n return plain(`${src.key} 第 ${p} 页取不到，HTTP ${r.status}`, 502);\n }\n const got = parse(await r.text());\n if (!got.length) break;\n all.push(...got);\n }\n if (!all.length) {\n return plain(`${src.key} 一条都没抓到。把这句话告诉 Claude。`, 502);\n }\n\n const seen = new Set();\n const kept: Item[] = [];\n const ads: Item[] = [];\n for (const it of all.sort((a, b) => +b.date - +a.date)) {\n if (cutoff && it.date < cutoff) continue;\n const k = key(it.link);\n if (seen.has(k)) continue;\n seen.add(k);\n if (it.sponsored && !keepSpon) {\n ads.push(it);\n continue;\n }\n kept.push(it);\n }\n\n const body = kept.map((it) => {\n const d = it.creator ? `${it.creator} —— ${it.desc}` : it.desc;\n return `${esc(it.title)}${esc(it.link)}` +\n `${esc(key(it.link))}` +\n `${esc(d)}` +\n `${it.date.toUTCString()}`;\n });\n\n if (q.get(\"diag\") !== \"0\") {\n const rows = ads.map((a) =>\n `${esc(a.date.toISOString().slice(0, 10))}${\n esc(a.title)\n }
${esc(a.creator)}`\n ).join(\"\");\n const html =\n `

抓到 ${all.length} 条 → 保留 ${kept.length} 条，丢弃软文 ${ads.length} 条。

` +\n (ads.length\n ? `${rows}

日期	丢弃的软文

`\n : \"

这一轮没有软文。

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