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(res.headers.get(\"set-cookie\") ? [res.headers.get(\"set-cookie\")] : []);\nconst jarStr = (j) => j.map((c) => c.split(\";\")[0]).join(\"; \");\nfunction solve(c, d){ const t=\"0\".repeat(d); for(let n=0;n<5e7;n++) if(createHash(\"sha256\").update(c+n).digest(\"hex\").startsWith(t)) return n; throw new Error(\"nopow\"); }\nasync function authed(sym) {\n const page = BASE + \"/q/?s=\" + encodeURIComponent(sym);\n let r = await fetch(page, { headers: { \"User-Agent\": UA, ...(jar.length ? { Cookie: jarStr(jar) } : {}) } });\n let html = await r.text();\n const m = html.match(/const c=\"([^\"]+)\"\\s*,\\s*d=(\\d+)/);\n if (m) {\n let j = setCookies(r);\n const n = solve(m[1], parseInt(m[2]));\n const vr = await fetch(BASE + \"/__verify\", { method:\"POST\", headers:{ \"User-Agent\":UA, \"Content-Type\":\"application/x-www-form-urlencoded\", Cookie:jarStr(j), Referer:page }, body:\"c=\"+encodeURIComponent(m[1])+\"&n=\"+n });\n jar = j.concat(setCookies(vr));\n html = await (await fetch(page, { headers: { \"User-Agent\": UA, Cookie: jarStr(jar) } })).text();\n }\n return html;\n}\nexport default async function () {\n const out = {};\n for (const s of [\"eurusd\", \"5yusy.b\", \"btcusd\"]) {\n const h = await authed(s);\n const esc = s.replace(/[.*+?^${}()|[\\]\\\\]/g, \"\\\\$&\");\n const f = {};\n for (const mm of h.matchAll(new RegExp(\"id=aq_\" + esc + \"_([a-z0-9]+)[^>]*>([^<]+)<\", \"g\"))) f[mm[1]] = mm[2];\n out[s] = f;\n }\n return Response.json(out, { headers: { \"Access-Control-Allow-Origin\": \"*\" } });\n}","// Macro watch feed — ALL from stooq.pl (single source).\n// Stooq gates data behind a JS proof-of-work challenge; this solves it in\n// code (SHA-256 PoW -> /__verify -> session cookie, cached), then reads each\n// instrument's quote page. Price lives in field aq__c; day change in\n// m2 (absolute) and m3 (percent).\nimport { createHash } from \"node:crypto\";\n\nconst UA = \"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124 Safari/537.36\";\nconst BASE = \"https://stooq.pl\";\n\n// order = user's list; kind \"yield\" => level shown as N% and change in bps\nconst SYMBOLS = [\n { s: \"gg.f\", key: \"bund\", label: \"Bund\", dp: 2 },\n { s: \"5yusy.b\", key: \"us5y\", label: \"US5Y\", dp: 2, kind: \"yield\" },\n { s: \"10yuky.b\", key: \"uk10y\", label: \"UK10Y\", dp: 2, kind: \"yield\" },\n { s: \"eurusd\", key: \"eurusd\", label: \"EUR\", dp: 4 },\n { s: \"es.f\", key: \"sp\", label: \"S&P\", dp: 2 },\n { s: \"btcusd\", key: \"btc\", label: \"BTC\", dp: 0, sep: true },\n];\n\nlet jar = []; // module-level cookie cache (survives warm instances)\nconst setCookies = (res) => res.headers.getSetCookie?.() ?? (res.headers.get(\"set-cookie\") ? [res.headers.get(\"set-cookie\")] : []);\nconst jarStr = (j) => j.map((c) => c.split(\";\")[0]).join(\"; \");\nfunction solvePow(c, d) {\n const t = \"0\".repeat(d);\n for (let n = 0; n < 5e7; n++) if (createHash(\"sha256\").update(c + n).digest(\"hex\").startsWith(t)) return n;\n throw new Error(\"no pow\");\n}\nasync function authed(sym) {\n const page = BASE + \"/q/?s=\" + encodeURIComponent(sym);\n let r = await fetch(page, { headers: { \"User-Agent\": UA, ...(jar.length ? { Cookie: jarStr(jar) } : {}) } });\n let html = await r.text();\n const m = html.match(/const c=\"([^\"]+)\"\\s*,\\s*d=(\\d+)/);\n if (m) {\n let j = setCookies(r);\n const n = solvePow(m[1], parseInt(m[2]));\n const vr = await fetch(BASE + \"/__verify\", {\n method: \"POST\",\n headers: { \"User-Agent\": UA, \"Content-Type\": \"application/x-www-form-urlencoded\", Cookie: jarStr(j), Referer: page },\n body: \"c=\" + encodeURIComponent(m[1]) + \"&n=\" + n,\n });\n jar = j.concat(setCookies(vr));\n html = await (await fetch(page, { headers: { \"User-Agent\": UA, Cookie: jarStr(jar) } })).text();\n }\n return html;\n}\nconst esc = (s) => s.replace(/[.*+?^${}()|[\\]\\\\]/g, \"\\\\$&\");\nconst fld = (html, sym, id) => (html.match(new RegExp(\"id=aq_\" + esc(sym.toLowerCase()) + \"_\" + id + \"[^>]*>([^<]+)<\")) || [])[1] || null;\nconst priceRaw = (html, sym) => (html.match(new RegExp(\"id=aq_\" + esc(sym.toLowerCase()) + \"_c\\\\d[^>]*>([^<]+)<\")) || [])[1] || null;\n\nfunction fmt(v, cfg) {\n if (cfg.dp === 0) return Math.round(v).toLocaleString(\"en-US\");\n if (cfg.sep) return v.toLocaleString(\"en-US\", { minimumFractionDigits: cfg.dp, maximumFractionDigits: cfg.dp });\n return v.toFixed(cfg.dp);\n}\nasync function instrument(cfg) {\n try {\n const html = await authed(cfg.s);\n const v = parseFloat(priceRaw(html, cfg.s));\n const m2 = parseFloat(fld(html, cfg.s, \"m2\")); // abs change\n const m3 = (fld(html, cfg.s, \"m3\") || \"\").replace(/[()\\s]/g, \"\"); // \"-0.69%\"\n if (!isFinite(v)) throw new Error(\"no price\");\n const up = !(m2 < 0);\n let text = fmt(v, cfg) + (cfg.kind === \"yield\" ? \"%\" : \"\");\n let chgText;\n if (cfg.kind === \"yield\") {\n const bps = isFinite(m2) ? Math.round(m2 * 100) : 0; // 0.076pp = 8bp\n chgText = `${bps >= 0 ? \"+\" : \"\"}${bps}bp`;\n } else {\n chgText = m3 || \"0%\";\n }\n return [cfg.key, { price: v, label: cfg.label, text, chgText, up }];\n } catch (e) {\n return [cfg.key, { label: cfg.label, text: \"n/a\", chgText: \"\", up: true, error: String(e) }];\n }\n}\n\nexport default async function () {\n const cors = { \"Access-Control-Allow-Origin\": \"*\", \"Cache-Control\": \"public, max-age=30\" };\n // Establish cookie on the first symbol (solves PoW once), then the rest reuse it in parallel.\n const first = await instrument(SYMBOLS[0]);\n const rest = await Promise.all(SYMBOLS.slice(1).map(instrument));\n const out = {};\n for (const [k, v] of [first, ...rest]) out[k] = v;\n out.line = SYMBOLS.filter((c) => out[c.key] && out[c.key].text !== \"n/a\")\n .map((c) => `${out[c.key].label} ${out[c.key].text} ${out[c.key].chgText}`).join(\" \");\n out.updated = new Date().toISOString();\n return Response.json(out, { headers: 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Diff · v17