${esc(subject)}

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HK Newsletter Feed Server — v1 (2026-07-08)\n// Twin of BiB's proven feed server, fully separated (hk_newsletters table, HK_FEED_SECRET).\n// Trigger type: HTTP\n// Returns an Atom feed of your stored newsletters.\n//\n// Before saving this val, go to the val's Env vars (left sidebar) and set:\n// HK_FEED_SECRET = \n// Generate one at: https://1password.com/password-generator/\n//\n// Your feed URL will then be:\n// /feed/\n// (val.town generates the address, e.g. https://hkfeedserver--.web.val.run)\n\nimport { sqlite } from \"https://esm.town/v/std/sqlite\";\n\nconst SECRET = Deno.env.get(\"HK_FEED_SECRET\") ?? \"\";\n\nexport default async function (req: Request): Promise {\n const path = new URL(req.url).pathname;\n\n if (path !== `/feed/${SECRET}`) {\n return new Response(\"Not found\", { status: 404 });\n }\n\n await sqlite.execute(`\n CREATE TABLE IF NOT EXISTS hk_newsletters (\n id INTEGER PRIMARY KEY AUTOINCREMENT,\n received_at TEXT NOT NULL,\n sender TEXT,\n subject TEXT,\n html TEXT,\n body TEXT\n )\n `);\n\n const result = await sqlite.execute(`\n SELECT id, received_at, sender, subject, html, body\n FROM hk_newsletters\n ORDER BY received_at DESC\n LIMIT 50\n `);\n\n const esc = (s: unknown) =>\n String(s ?? \"\")\n .replace(/&/g, \"&\")\n .replace(//g, \">\");\n\n const stripTags = (s: string) =>\n s.replace(/<[^>]+>/g, \" \")\n .replace(/ /gi, \" \").replace(/&/gi, \"&\")\n .replace(/</gi, \"<\").replace(/>/gi, \">\")\n .replace(/"/gi, '\"').replace(/'/gi, \"'\")\n .replace(/—/gi, \"—\").replace(/–/gi, \"–\")\n .replace(/[-‍‌]/g, \"\") // strip zero-width chars\n .replace(/[^\\S\\n]+/g, \" \").trim();\n\n // Extract story content from newsletter HTML.\n // Finds text blocks that contain an external link (headline + summary + URL),\n // skipping boilerplate (unsubscribe, preferences, tracking links, etc.).\n // This preserves all stories regardless of their position in the newsletter,\n // and produces output far more compact than the raw HTML.\n function extractStoryContent(html: string): string {\n const results: string[] = [];\n const seenUrls = new Set();\n\n const boilerplateUrl =\n /unsubscri|optout|preference|manage|forward|mailto:|tracking\\.|click\\.|utm_|\\/r\\//i;\n const boilerplateText =\n /unsubscri|manage pref|view in browser|privacy|terms of use|follow us|©|all rights reserved|^read more$|^click here$|^find out more$/i;\n\n // Extract block-level elements that contain at least one external link\n const blockRe =\n /<(?:p|td|th|li|div|h[1-6])(?:\\s[^>]*)?>[\\s\\S]*?<\\/(?:p|td|th|li|div|h[1-6])>/gi;\n let m: RegExpExecArray | null;\n\n // Remove style/script blocks first so their URLs don't pollute results\n const cleaned = html\n .replace(/]*>[\\s\\S]*?<\\/style>/gi, \"\")\n .replace(/]*>[\\s\\S]*?<\\/script>/gi, \"\");\n\n while ((m = blockRe.exec(cleaned)) !== null) {\n const block = m[0];\n const linkM = block.match(/href=[\"'](https?:\\/\\/[^\"'\\s>]{10,})[\"']/i);\n if (!linkM) continue;\n const url = linkM[1];\n if (boilerplateUrl.test(url)) continue;\n if (seenUrls.has(url)) continue;\n seenUrls.add(url);\n\n const text = stripTags(block);\n if (text.length < 25) continue;\n if (boilerplateText.test(text)) continue;\n\n results.push(`${text}\\n → ${url}`);\n }\n\n // Fallback: if block extraction found nothing, strip tags from the whole thing\n if (results.length < 3) {\n return stripTags(cleaned).replace(/\\s{2,}/g, \" \").slice(0, 8000);\n }\n\n return results.join(\"\\n\\n\");\n }\n\n const entries = result.rows.map((\n [id, received_at, sender, subject, html, body],\n ) =>\n ` \n urn:hk:${id}\n ${esc(subject)}\n ${esc(sender)}\n ${new Date(String(received_at)).toISOString()}\n \n `\n );\n\n const feed = `\n\n HK Newsletters\n urn:hk:newsletters\n ${new Date().toISOString()}\n${entries.join(\"\\n\")}\n`;\n\n return new Response(feed, {\n headers: {\n \"Content-Type\": \"text/xml; charset=utf-8\",\n \"Cache-Control\": \"no-store\",\n },\n 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Code