${message}

`;\n if (type === 'success') {\n setTimeout(() => errorBox.innerHTML = '', 5000);\n }\n}\n\n// Initialize\nasync function init() {\n // Update endpoint URL\n document.getElementById('endpointUrl').textContent = 'POST ' + API_BASE + '/heartbeat';\n \n // Fetch initial status\n await fetchStatus();\n \n // Refresh status every 30 seconds\n setInterval(fetchStatus, 30000);\n\n // Register service worker\n if ('serviceWorker' in navigator) {\n try {\n swRegistration = await navigator.serviceWorker.register('/sw.js');\n console.log('Service Worker registered');\n\n // Check if already subscribed\n const subscription = await swRegistration.pushManager.getSubscription();\n updateSubscribeButton(!!subscription);\n \n document.getElementById('subscribeBtn').disabled = false;\n document.getElementById('subscribeBtn').addEventListener('click', subscribe);\n } catch (error) {\n console.error('Service Worker registration failed:', error);\n }\n }\n}\n\ninit();\n",[],[181],{"_104":189,"_97":190,"_160":191,"_162":-5,"_163":145,"_164":192,"_166":167,"_106":193,"_101":184,"_170":194,"_172":195,"_174":22,"_175":-5,"_176":196,"_100":197},"e4b9614a-0bda-11f1-8fcf-42dde27851f2","generate-vapid-keys.ts","f54a9e36-0bab-11f1-b64e-42dde27851f2",32,["D",1771317019322],"script","import webpush from \"npm:web-push@3.6.7\";\n\n// Run this once to generate VAPID keys for push notifications\nasync function main() {\n const vapidKeys = webpush.generateVAPIDKeys();\n\n console.log(\"\\n🔑 VAPID Keys Generated!\\n\");\n console.log(\"Add these as environment variables to your val:\\n\");\n console.log(\"VAPID_PUBLIC_KEY:\");\n console.log(vapidKeys.publicKey);\n console.log(\"\\nVAPID_PRIVATE_KEY:\");\n console.log(vapidKeys.privateKey);\n console.log(\"\\nVAPID_EMAIL (optional):\");\n console.log(\"mailto:your-email@example.com\");\n console.log(\"\\n\");\n\n return {\n publicKey: vapidKeys.publicKey,\n privateKey: vapidKeys.privateKey,\n instructions: \"Add these to your val's environment variables\",\n };\n}\n\nmain();",[],[190],{"_104":199,"_97":200,"_160":201,"_162":-5,"_163":145,"_164":202,"_166":167,"_106":203,"_101":33,"_170":171,"_172":204,"_174":22,"_175":-5,"_176":205,"_100":206},"379462e2-0bd7-11f1-9d1f-42dde27851f2","index.html","3794640e-0bd7-11f1-9d1f-42dde27851f2",17,["D",1771315440335],"\n\n\n \n \n Home Server Monitor\n \n \n \n \n \n\n\n

🖥️ Home Server Monitor

Real-time server status tracking

\n \n

\n ⏳\n

Checking...

Loading status...

\n \n \n \n

\n How it works:
\n • Your server pings this app every 15 minutes
\n • If no ping received for 1+ hour, you'll get notified
\n • Subscribe to get push notifications when server is down\n

\n\n

\n Server Heartbeat Endpoint:
\n POST /heartbeat\n

\n \n

\n\n \n\n\n",[],[200],{"_104":208,"_97":209,"_160":210,"_162":-5,"_163":145,"_164":211,"_166":167,"_106":212,"_101":213,"_170":214,"_172":215,"_174":22,"_175":216,"_176":217,"_100":218},"50e1a9ba-0bd9-11f1-930b-42dde27851f2","main.ts","c6cc02dc-0ba8-11f1-bece-42dde27851f2",31,["D",1771316341783],22,"http","import { Hono } from \"npm:hono@4\";\nimport { cors } from \"npm:hono@4/cors\";\nimport { sqlite } from \"https://esm.town/v/std/sqlite@14-main/main.ts\";\nimport { readFile } from \"https://esm.town/v/std/utils/index.ts\";\n\n// Initialize Hono app\nconst app = new Hono();\n\n// Add CORS middleware\napp.use(\"/*\", cors({\n origin: \"*\",\n allowMethods: [\"GET\", \"POST\", \"OPTIONS\"],\n allowHeaders: [\"Content-Type\"],\n}));\n\n// Initialize database\nasync function initDB() {\n await sqlite.execute(`\n CREATE TABLE IF NOT EXISTS heartbeats (\n id INTEGER PRIMARY KEY AUTOINCREMENT,\n timestamp INTEGER NOT NULL\n )\n `);\n \n await sqlite.execute(`\n CREATE TABLE IF NOT EXISTS subscriptions (\n id INTEGER PRIMARY KEY AUTOINCREMENT,\n endpoint TEXT UNIQUE NOT NULL,\n p256dh TEXT NOT NULL,\n auth TEXT NOT NULL,\n created_at INTEGER NOT NULL\n )\n `);\n}\n\n// Initialize DB on startup\nawait initDB();\n\n// PWA Manifest\nconst manifest = {\n name: \"Home Server Monitor\",\n short_name: \"Server Mon\",\n description: \"Monitor your home server status with real-time notifications\",\n start_url: \"/\",\n display: \"standalone\",\n background_color: \"#1a1a1a\",\n theme_color: \"#1a1a1a\",\n orientation: \"portrait\",\n icons: [\n {\n src: \"https://em-content.zobj.net/thumbs/240/apple/354/desktop-computer_1f5a5-fe0f.png\",\n sizes: \"240x240\",\n type: \"image/png\",\n purpose: \"any maskable\"\n }\n ]\n};\n\n// Routes\n\n// Home page\napp.get(\"/\", async (c) => {\n const html = await readFile(\"/index.html\");\n return c.html(html);\n});\n\n// Client JavaScript\napp.get(\"/client.js\", async (c) => {\n const clientJs = await readFile(\"/client.js\");\n return new Response(clientJs, {\n status: 200,\n headers: {\n \"Content-Type\": \"application/javascript; charset=utf-8\",\n \"Cache-Control\": \"public, max-age=3600\",\n },\n });\n});\n\n// Service Worker\napp.get(\"/sw.js\", async (c) => {\n const sw = await readFile(\"/sw.js\");\n return new Response(sw, {\n status: 200,\n headers: {\n \"Content-Type\": \"application/javascript; charset=utf-8\",\n \"Cache-Control\": \"no-cache\",\n },\n });\n});\n\n// PWA Manifest\napp.get(\"/manifest.json\", (c) => {\n return c.json(manifest, {\n headers: {\n \"Cache-Control\": \"public, max-age=3600\"\n }\n });\n});\n\n// Heartbeat endpoint - your server calls this\napp.post(\"/heartbeat\", async (c) => {\n await sqlite.execute({\n sql: \"INSERT INTO heartbeats (timestamp) VALUES (?)\",\n args: [Date.now()],\n });\n \n return c.json({ success: true, timestamp: Date.now() });\n});\n\n// Get last heartbeat status\napp.get(\"/status\", async (c) => {\n const result = await sqlite.execute(\n \"SELECT timestamp FROM heartbeats ORDER BY timestamp DESC LIMIT 1\"\n );\n \n const lastHeartbeat = result.rows[0]?.timestamp as number || null;\n const now = Date.now();\n const isOnline = lastHeartbeat ? (now - lastHeartbeat) < 60 * 60 * 1000 : false;\n const minutesSince = lastHeartbeat ? Math.floor((now - lastHeartbeat) / 60000) : null;\n \n return c.json({ \n lastHeartbeat,\n isOnline,\n minutesSince,\n currentTime: now\n });\n});\n\n// Subscribe to notifications\napp.post(\"/subscribe\", async (c) => {\n const subscription = await c.req.json();\n \n await sqlite.execute({\n sql: `INSERT OR REPLACE INTO subscriptions (endpoint, p256dh, auth, created_at) \n VALUES (?, ?, ?, ?)`,\n args: [\n subscription.endpoint,\n subscription.keys.p256dh,\n subscription.keys.auth,\n Date.now(),\n ],\n });\n \n return c.json({ success: true });\n});\n\n// Get VAPID public key for push notifications\napp.get(\"/vapid-public-key\", (c) => {\n const publicKey = Deno.env.get(\"VAPID_PUBLIC_KEY\") || \"\";\n return c.json({ publicKey });\n});\n\n// 404 handler\napp.notFound((c) => {\n return c.text(\"Not Found\", 404);\n});\n\n// Error handler\napp.onError((err, c) => {\n console.error(\"Error:\", err);\n return c.json({ error: err.message }, 500);\n});\n\n// Export as default HTTP handler\nexport default app.fetch;\n","halffullheartbeat",[],[209],{"_104":220,"_97":221,"_160":222,"_162":-5,"_163":145,"_164":223,"_166":167,"_106":224,"_101":33,"_170":225,"_172":226,"_174":22,"_175":-5,"_176":227,"_100":228},"ea62b24c-0bab-11f1-9901-42dde27851f2","monitor.ts","ea62b2f6-0bab-11f1-9901-42dde27851f2",4,["D",1771296842478],"interval","import { sqlite } from \"https://esm.town/v/std/sqlite@14-main/main.ts\";\nimport webpush from \"npm:web-push@3.6.7\";\n\n// This runs every 15 minutes to check if server is down\nexport default async function() {\n console.log(\"Checking server status...\", new Date().toISOString());\n\n try {\n // Get the last heartbeat\n const result = await sqlite.execute(\n \"SELECT timestamp FROM heartbeats ORDER BY timestamp DESC LIMIT 1\"\n );\n \n const lastHeartbeat = result.rows[0]?.timestamp as number || null;\n \n if (!lastHeartbeat) {\n console.log(\"No heartbeats recorded yet\");\n return;\n }\n\n const now = Date.now();\n const timeSinceLastHeartbeat = now - lastHeartbeat;\n const oneHour = 60 * 60 * 1000;\n \n console.log(`Last heartbeat: ${Math.floor(timeSinceLastHeartbeat / 60000)} minutes ago`);\n\n // If more than 1 hour since last heartbeat, send notifications\n if (timeSinceLastHeartbeat > oneHour) {\n console.log(\"Server is DOWN! Sending notifications...\");\n \n // Get all subscriptions\n const subscriptions = await sqlite.execute(\"SELECT * FROM subscriptions\");\n \n if (subscriptions.rows.length === 0) {\n console.log(\"No subscribers to notify\");\n return;\n }\n\n // Configure web-push with VAPID keys\n const vapidPublicKey = Deno.env.get(\"VAPID_PUBLIC_KEY\");\n const vapidPrivateKey = Deno.env.get(\"VAPID_PRIVATE_KEY\");\n const vapidEmail = Deno.env.get(\"VAPID_EMAIL\") || \"mailto:admin@example.com\";\n\n if (!vapidPublicKey || !vapidPrivateKey) {\n console.error(\"VAPID keys not configured! Please set VAPID_PUBLIC_KEY and VAPID_PRIVATE_KEY environment variables.\");\n return;\n }\n\n webpush.setVapidDetails(vapidEmail, vapidPublicKey, vapidPrivateKey);\n\n // Send notification to each subscriber\n const minutesSince = Math.floor(timeSinceLastHeartbeat / 60000);\n const payload = JSON.stringify({\n title: \"🔴 Home Server Down\",\n body: `Your server hasn't responded in ${minutesSince} minutes`,\n icon: \"/icon.png\",\n badge: \"/badge.png\",\n timestamp: now,\n });\n\n for (const sub of subscriptions.rows) {\n try {\n await webpush.sendNotification(\n {\n endpoint: sub.endpoint as string,\n keys: {\n p256dh: sub.p256dh as string,\n auth: sub.auth as string,\n },\n },\n payload\n );\n console.log(`✓ Notification sent to ${sub.endpoint}`);\n } catch (error) {\n console.error(`Failed to send notification to ${sub.endpoint}:`, error.message);\n \n // If subscription is no longer valid, remove it\n if (error.statusCode === 410) {\n await sqlite.execute({\n sql: \"DELETE FROM subscriptions WHERE endpoint = ?\",\n args: [sub.endpoint],\n });\n console.log(`Removed invalid subscription: ${sub.endpoint}`);\n }\n }\n }\n } else {\n console.log(\"Server is online ✓\");\n }\n } catch (error) {\n console.error(\"Monitor error:\", error);\n }\n}",[],[221],{"_104":230,"_97":231,"_160":232,"_162":-5,"_163":145,"_164":233,"_166":167,"_106":234,"_101":33,"_170":171,"_172":235,"_174":22,"_175":-5,"_176":236,"_100":237},"3c84e2e0-0bd7-11f1-ab86-42dde27851f2","sw.js","3c84e39e-0bd7-11f1-ab86-42dde27851f2",18,["D",1771315448635],"self.addEventListener('push', function(event) {\n console.log('Push notification received:', event);\n \n let data = { title: 'Server Status', body: 'Notification received' };\n \n if (event.data) {\n try {\n data = event.data.json();\n } catch (e) {\n data.body = event.data.text();\n }\n }\n \n const options = {\n body: data.body,\n icon: data.icon || '/icon-192.png',\n badge: data.badge || '/badge-96.png',\n vibrate: [200, 100, 200],\n timestamp: data.timestamp || Date.now(),\n requireInteraction: true,\n actions: [\n { action: 'view', title: 'View Status' },\n { action: 'close', title: 'Close' }\n ]\n };\n \n event.waitUntil(\n self.registration.showNotification(data.title, options)\n );\n});\n\nself.addEventListener('notificationclick', function(event) {\n console.log('Notification clicked:', event.action);\n \n event.notification.close();\n \n if (event.action === 'view' || !event.action) {\n event.waitUntil(\n clients.openWindow('/')\n );\n }\n});\n\nself.addEventListener('install', function(event) {\n console.log('Service Worker installing...');\n self.skipWaiting();\n});\n\nself.addEventListener('activate', function(event) {\n console.log('Service Worker activating...');\n event.waitUntil(clients.claim());\n});\n",[],[231],"files",[157,179,188,198,207,219,229],"counts",{"_242":33,"_243":184,"_244":33,"_245":246,"_250":251},"pulls","branches","forks","envVars",{"_247":248,"_249":33},"count",3,"emptyCount","connections",{"_247":33,"_252":33},"unfilledCount","contents",[255,258,261,264,267,270,273],{"_104":158,"_97":159,"_160":161,"_162":-5,"_163":145,"_164":165,"_166":167,"_106":256,"_101":169,"_170":171,"_172":173,"_174":22,"_175":-5,"_100":257},["D",1771315517900],[159],{"_104":180,"_97":181,"_160":182,"_162":-5,"_163":145,"_164":144,"_166":167,"_106":259,"_101":184,"_170":171,"_172":185,"_174":22,"_175":-5,"_100":260},["D",1771317345899],[181],{"_104":189,"_97":190,"_160":191,"_162":-5,"_163":145,"_164":192,"_166":167,"_106":262,"_101":184,"_170":194,"_172":195,"_174":22,"_175":-5,"_100":263},["D",1771317019322],[190],{"_104":199,"_97":200,"_160":201,"_162":-5,"_163":145,"_164":202,"_166":167,"_106":265,"_101":33,"_170":171,"_172":204,"_174":22,"_175":-5,"_100":266},["D",1771315440335],[200],{"_104":208,"_97":209,"_160":210,"_162":-5,"_163":145,"_164":211,"_166":167,"_106":268,"_101":213,"_170":214,"_172":215,"_174":22,"_175":216,"_100":269},["D",1771316341783],[209],{"_104":220,"_97":221,"_160":222,"_162":-5,"_163":145,"_164":223,"_166":167,"_106":271,"_101":33,"_170":225,"_172":226,"_174":22,"_175":-5,"_100":272},["D",1771296842478],[221],{"_104":230,"_97":231,"_160":232,"_162":-5,"_163":145,"_164":233,"_166":167,"_106":274,"_101":33,"_170":171,"_172":235,"_174":22,"_175":-5,"_100":275},["D",1771315448635],[231],"upstreamProject","upstreamBranch","emptyEnvVars","isNew","flags",[],"routes/_app.x.$handle.$name.environment-variables",{"_95":96,"_97":98,"_102":284,"_245":289,"_303":22},{"_104":105,"_97":98,"_106":285,"_108":-5,"_109":22,"_110":111,"_112":-5,"_113":-5,"_14":114,"_115":-5,"_116":22,"_117":-5,"_118":-5,"_119":33,"_16":120,"_121":122,"_123":124,"_125":126,"_127":126,"_128":129,"_130":129,"_131":129,"_132":126,"_133":126,"_23":286,"_137":287,"_142":288,"_154":22},["D",1771295494247],{"_95":96,"_135":136},{"_95":96,"_139":136,"_14":114,"_140":141},{"_101":144,"_97":45,"_104":145,"_146":105,"_147":-5,"_148":-5,"_149":-5,"_150":-5,"_151":-5,"_152":98,"_153":96},[290,296,299],{"_291":292,"_106":293,"_294":-5,"_112":74,"_295":22},"key","VAPID_EMAIL",["D",1771317096084],"updatedAt","isEmpty",{"_291":297,"_106":298,"_294":-5,"_112":74,"_295":22},"VAPID_PUBLIC_KEY",["D",1771317084392],{"_291":300,"_106":301,"_294":302,"_112":74,"_295":22},"VAPID_PRIVATE_KEY",["D",1771317047318],["D",1771317077486],"isTeamOrg","actionData","errors"]

Key	Description
VAPID_EMAIL
VAPID_PUBLIC_KEY
VAPID_PRIVATE_KEY

halffullheart

heartbeat

Environment variables