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| 1 | +import { createServer } from "http"; |
| 2 | +import next from "next"; |
| 3 | +import { parse } from "url"; |
| 4 | +import { WebSocketServer } from "ws"; |
| 5 | +import { applyWSSHandler } from "@trpc/server/adapters/ws"; |
| 6 | +import { fastifyTRPCPlugin } from "@trpc/server/adapters/fastify"; |
| 7 | +import fastify from "fastify"; |
| 8 | + |
| 9 | +import { appRouter, createTRPCContext } from "@homarr/api/websocket"; |
| 10 | +import type { JobRouter } from "@homarr/cron-job-api"; |
| 11 | +import { jobRouter } from "@homarr/cron-job-api"; |
| 12 | +import { CRON_JOB_API_KEY_HEADER, CRON_JOB_API_PATH } from "@homarr/cron-job-api/constants"; |
| 13 | +import type { FastifyTRPCPluginOptions } from "@trpc/server/adapters/fastify"; |
| 14 | +import { getSessionFromToken, sessionTokenCookieName } from "@homarr/auth"; |
| 15 | +import { parseCookies } from "@homarr/common"; |
| 16 | +import { jobGroup } from "@homarr/cron-jobs"; |
| 17 | +import { db } from "@homarr/db"; |
| 18 | +import { logger } from "@homarr/log"; |
| 19 | + |
| 20 | +// Import tasks overrides first (must be before other imports) |
| 21 | +import "../tasks/src/overrides"; |
| 22 | + |
| 23 | +import { JobManager } from "../tasks/src/job-manager"; |
| 24 | +import { onStartAsync } from "../tasks/src/on-start"; |
| 25 | + |
| 26 | +const port = parseInt(process.env.PORT || "3000", 10); |
| 27 | +const dev = process.env.NODE_ENV !== "production"; |
| 28 | +const hostname = process.env.HOSTNAME || "localhost"; |
| 29 | + |
| 30 | +// Create Next.js app |
| 31 | +const app = next({ dev, hostname, port }); |
| 32 | +const handle = app.getRequestHandler(); |
| 33 | + |
| 34 | +// Initialize tasks worker (cron jobs) - merged into Next.js |
| 35 | +void (async () => { |
| 36 | + await onStartAsync(); |
| 37 | + await jobGroup.initializeAsync(); |
| 38 | + await jobGroup.startAllAsync(); |
| 39 | + logger.info("✅ Tasks worker initialized and started"); |
| 40 | +})(); |
| 41 | + |
| 42 | +void app.prepare().then(async () => { |
| 43 | + // Create Fastify instance for tasks API (merged into Next.js) |
| 44 | + // Create it once and reuse for all requests |
| 45 | + const tasksFastify = fastify({ |
| 46 | + maxParamLength: 5000, |
| 47 | + }); |
| 48 | + |
| 49 | + await tasksFastify.register(fastifyTRPCPlugin, { |
| 50 | + prefix: CRON_JOB_API_PATH, |
| 51 | + trpcOptions: { |
| 52 | + router: jobRouter, |
| 53 | + createContext: ({ req }) => ({ |
| 54 | + manager: new JobManager(db, jobGroup), |
| 55 | + apiKey: req.headers[CRON_JOB_API_KEY_HEADER] as string | undefined, |
| 56 | + }), |
| 57 | + onError({ path, error }) { |
| 58 | + logger.error(new Error(`Error in tasks tRPC handler path="${path}"`, { cause: error })); |
| 59 | + }, |
| 60 | + }, |
| 61 | + } satisfies FastifyTRPCPluginOptions<JobRouter>["trpcOptions"]); |
| 62 | + |
| 63 | + await tasksFastify.ready(); |
| 64 | + |
| 65 | + // Create HTTP server |
| 66 | + const server = createServer(async (req, res) => { |
| 67 | + try { |
| 68 | + const parsedUrl = parse(req.url ?? "", true); |
| 69 | + |
| 70 | + // Route tasks API requests to Fastify handler |
| 71 | + if (parsedUrl.pathname?.startsWith(CRON_JOB_API_PATH)) { |
| 72 | + // Use Fastify's inject method to handle the request |
| 73 | + const response = await tasksFastify.inject({ |
| 74 | + method: req.method ?? "GET", |
| 75 | + url: req.url ?? "", |
| 76 | + headers: req.headers as Record<string, string>, |
| 77 | + payload: req, |
| 78 | + }); |
| 79 | + |
| 80 | + // Write response |
| 81 | + res.statusCode = response.statusCode; |
| 82 | + for (const [key, value] of Object.entries(response.headers)) { |
| 83 | + res.setHeader(key, value); |
| 84 | + } |
| 85 | + res.end(response.body); |
| 86 | + return; |
| 87 | + } |
| 88 | + |
| 89 | + // All other requests go to Next.js |
| 90 | + await handle(req, res, parsedUrl); |
| 91 | + } catch (err) { |
| 92 | + logger.error(err); |
| 93 | + res.statusCode = 500; |
| 94 | + res.end("Internal Server Error"); |
| 95 | + } |
| 96 | + }); |
| 97 | + |
| 98 | + // Create WebSocket server on the same HTTP server |
| 99 | + const wss = new WebSocketServer({ |
| 100 | + server, |
| 101 | + path: "/websockets", |
| 102 | + }); |
| 103 | + |
| 104 | + // Apply tRPC WebSocket handler |
| 105 | + const handler = applyWSSHandler({ |
| 106 | + wss, |
| 107 | + router: appRouter, |
| 108 | + // ignore error on next line because the createContext must be set with this name |
| 109 | + // eslint-disable-next-line no-restricted-syntax |
| 110 | + createContext: async ({ req }) => { |
| 111 | + try { |
| 112 | + const headers = Object.entries(req.headers).map( |
| 113 | + ([key, value]) => [key, typeof value === "string" ? value : value?.[0]] as [string, string], |
| 114 | + ); |
| 115 | + const nextHeaders = new Headers(headers); |
| 116 | + |
| 117 | + const store = parseCookies(nextHeaders.get("cookie") ?? ""); |
| 118 | + const sessionToken = store[sessionTokenCookieName]; |
| 119 | + |
| 120 | + const session = await getSessionFromToken(db, sessionToken); |
| 121 | + |
| 122 | + return createTRPCContext({ |
| 123 | + headers: nextHeaders, |
| 124 | + session, |
| 125 | + }); |
| 126 | + } catch (error) { |
| 127 | + logger.error(error); |
| 128 | + return createTRPCContext({ |
| 129 | + headers: new Headers(), |
| 130 | + session: null, |
| 131 | + }); |
| 132 | + } |
| 133 | + }, |
| 134 | + // Enable heartbeat messages to keep connection open (disabled by default) |
| 135 | + keepAlive: { |
| 136 | + enabled: true, |
| 137 | + // server ping message interval in milliseconds |
| 138 | + pingMs: 30000, |
| 139 | + // connection is terminated if pong message is not received in this many milliseconds |
| 140 | + pongWaitMs: 5000, |
| 141 | + }, |
| 142 | + }); |
| 143 | + |
| 144 | + wss.on("connection", (websocket, incomingMessage) => { |
| 145 | + // Only log in development to reduce memory overhead |
| 146 | + if (process.env.NODE_ENV === "development") { |
| 147 | + logger.debug(`➕ Connection (${wss.clients.size}) ${incomingMessage.method} ${incomingMessage.url}`); |
| 148 | + } |
| 149 | + websocket.once("close", (code, reason) => { |
| 150 | + if (process.env.NODE_ENV === "development") { |
| 151 | + logger.debug(`➖ Connection (${wss.clients.size}) ${code} ${reason.toString()}`); |
| 152 | + } |
| 153 | + }); |
| 154 | + }); |
| 155 | + |
| 156 | + // Start server |
| 157 | + server.listen(port, () => { |
| 158 | + logger.info(`✅ Next.js server ready on http://${hostname}:${port}`); |
| 159 | + logger.info(`✅ WebSocket server ready on ws://${hostname}:${port}/websockets`); |
| 160 | + logger.info(`✅ Tasks API ready on http://${hostname}:${port}${CRON_JOB_API_PATH}`); |
| 161 | + }); |
| 162 | + |
| 163 | + // Handle graceful shutdown |
| 164 | + process.on("SIGTERM", () => { |
| 165 | + logger.info("SIGTERM received, shutting down gracefully"); |
| 166 | + handler.broadcastReconnectNotification(); |
| 167 | + wss.close(); |
| 168 | + server.close(() => { |
| 169 | + logger.info("Server closed"); |
| 170 | + process.exit(0); |
| 171 | + }); |
| 172 | + }); |
| 173 | +}); |
| 174 | + |
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