commit e7b44539ae3c66d4ce4184d22561b66c86cf7ca0 Author: Nikita Bizyaev Date: Thu Jun 4 14:40:18 2026 +0300 mqtt-ingest draft diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..dd63e02 --- /dev/null +++ b/.gitignore @@ -0,0 +1,28 @@ +# dependencies +node_modules/ + +# build +dist/ + +# env & secrets +.env +.env.* + +# logs +*.log +mosquitto/log/* +!mosquitto/log/.gitkeep + +# mosquitto runtime persistence (keep directory) +mosquitto/data/* +!mosquitto/data/.gitkeep + +# OS +.DS_Store +Thumbs.db + +# IDE +.idea/ +.vscode/ +*.swp +*.swo diff --git a/app/.dockerignore b/app/.dockerignore new file mode 100644 index 0000000..f06235c --- /dev/null +++ b/app/.dockerignore @@ -0,0 +1,2 @@ +node_modules +dist diff --git a/app/Dockerfile b/app/Dockerfile new file mode 100644 index 0000000..da84bdd --- /dev/null +++ b/app/Dockerfile @@ -0,0 +1,12 @@ +FROM node:22-alpine + +WORKDIR /app + +COPY package.json package-lock.json ./ +RUN npm ci + +COPY tsconfig.json ./ +COPY public 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100644 index 0000000..504bfdd --- /dev/null +++ b/app/public/index.html @@ -0,0 +1,21 @@ + + + + + edge5 video relay + + + + + + + diff --git a/app/src/handlers/edge5-video.ts b/app/src/handlers/edge5-video.ts new file mode 100644 index 0000000..a994e87 --- /dev/null +++ b/app/src/handlers/edge5-video.ts @@ -0,0 +1,13 @@ +import { onEdgeChunk } from '../stream/edge-chunk-relay.js' +import type { TopicHandler } from '../types.js' + +export const TOPIC = 'data/edge5/video/v1' + +export const handleEdge5Video: TopicHandler = async (topic, payload) => { + console.log('edge5.video.received', { + topic, + bytes: payload.length, + payload, + }) + onEdgeChunk(payload) +} diff --git a/app/src/handlers/index.ts b/app/src/handlers/index.ts new file mode 100644 index 0000000..22d1f2d --- /dev/null +++ b/app/src/handlers/index.ts @@ -0,0 +1,14 @@ +import { register } from '../registry.js' +import { handleTopic1, TOPIC as topic1 } from './topic1.js' +import { handleTopic2, TOPIC as topic2 } from './topic2.js' +import { handleTopic3, TOPIC as topic3 } from './topic3.js' +import { handleTopic4, TOPIC as topic4 } from './topic4.js' +import { handleTopic5, TOPIC as topic5 } from './topic5.js' +import { handleEdge5Video, TOPIC as edge5Video } from './edge5-video.js' + +register(topic1, handleTopic1) +register(topic2, handleTopic2) +register(topic3, handleTopic3) +register(topic4, handleTopic4) +register(topic5, handleTopic5) +register(edge5Video, handleEdge5Video) diff --git a/app/src/handlers/topic1.ts b/app/src/handlers/topic1.ts new file mode 100644 index 0000000..fdde71b --- /dev/null +++ b/app/src/handlers/topic1.ts @@ -0,0 +1,16 @@ +import { parseJson } from '../helpers/parse.js' +import { isArrayOfChunks125 } from '../helpers/validate.js' +import type { TopicHandler } from '../types.js' + +export const TOPIC = 'poc/topic1' + +export const handleTopic1: TopicHandler = async (topic, payload) => { + const raw = parseJson(payload) + + if (!isArrayOfChunks125(raw)) { + console.warn('topic1.invalid_payload', { topic }) + return + } + + console.log('topic1.received', { topic, chunks: raw.length }) +} diff --git a/app/src/handlers/topic2.ts b/app/src/handlers/topic2.ts new file mode 100644 index 0000000..a1f8d45 --- /dev/null +++ b/app/src/handlers/topic2.ts @@ -0,0 +1,16 @@ +import { parseJson } from '../helpers/parse.js' +import { isArrayOfLength125 } from '../helpers/validate.js' +import type { TopicHandler } from '../types.js' + +export const TOPIC = 'poc/topic2' + +export const handleTopic2: TopicHandler = async (topic, payload) => { + const raw = parseJson(payload) + + if (!isArrayOfLength125(raw)) { + console.warn('topic2.invalid_payload', { topic }) + return + } + + console.log('topic2.received', { topic, length: raw.length }) +} diff --git a/app/src/handlers/topic3.ts b/app/src/handlers/topic3.ts new file mode 100644 index 0000000..ccbd9d9 --- /dev/null +++ b/app/src/handlers/topic3.ts @@ -0,0 +1,16 @@ +import { parseUtf8 } from '../helpers/parse.js' +import { isNonEmptyString } from '../helpers/validate.js' +import type { TopicHandler } from '../types.js' + +export const TOPIC = 'poc/topic3' + +export const handleTopic3: TopicHandler = async (topic, payload) => { + const text = parseUtf8(payload) + + if (!isNonEmptyString(text)) { + console.warn('topic3.invalid_payload', { topic }) + return + } + + console.log('topic3.received', { topic, text }) +} diff --git a/app/src/handlers/topic4.ts b/app/src/handlers/topic4.ts new file mode 100644 index 0000000..8eed63f --- /dev/null +++ b/app/src/handlers/topic4.ts @@ -0,0 +1,29 @@ +import { parseJson } from '../helpers/parse.js' +import { isFiniteNumber } from '../helpers/validate.js' +import type { TopicHandler } from '../types.js' + +export const TOPIC = 'poc/topic4' + +type Topic4Payload = { + value: number +} + +function isTopic4Payload(value: unknown): value is Topic4Payload { + return ( + typeof value === 'object' && + value !== null && + 'value' in value && + isFiniteNumber((value as Topic4Payload).value) + ) +} + +export const handleTopic4: TopicHandler = async (topic, payload) => { + const raw = parseJson(payload) + + if (!isTopic4Payload(raw)) { + console.warn('topic4.invalid_payload', { topic }) + return + } + + console.log('topic4.received', { topic, value: raw.value }) +} diff --git a/app/src/handlers/topic5.ts b/app/src/handlers/topic5.ts new file mode 100644 index 0000000..de803df --- /dev/null +++ b/app/src/handlers/topic5.ts @@ -0,0 +1,10 @@ +import { parseJsonArray } from '../helpers/parse.js' +import type { TopicHandler } from '../types.js' + +export const TOPIC = 'poc/topic5' + +export const handleTopic5: TopicHandler = async (topic, payload) => { + const items = parseJsonArray(payload) + + console.log('topic5.received', { topic, count: items.length }) +} diff --git a/app/src/helpers/parse.ts b/app/src/helpers/parse.ts new file mode 100644 index 0000000..b132076 --- /dev/null +++ b/app/src/helpers/parse.ts @@ -0,0 +1,20 @@ +export function parseUtf8(payload: Buffer): string { + return payload.toString('utf8') +} + +export function parseJson(payload: Buffer): T { + const text = parseUtf8(payload) + return JSON.parse(text) as T +} + +export function parseJsonArray(payload: Buffer): unknown[] { + const value = parseJson(payload) + if (!Array.isArray(value)) { + throw new Error('Expected JSON array') + } + return value +} + +export function decodeBase64(payload: Buffer): Buffer { + return Buffer.from(payload.toString('utf8'), 'base64') +} diff --git a/app/src/helpers/validate.ts b/app/src/helpers/validate.ts new file mode 100644 index 0000000..f37fffb --- /dev/null +++ b/app/src/helpers/validate.ts @@ -0,0 +1,39 @@ +const EXPECTED_CHUNK_LENGTH = 125 + +export function isNonEmptyString(value: unknown): value is string { + return typeof value === 'string' && value.length > 0 +} + +export function isFiniteNumber(value: unknown): value is number { + return typeof value === 'number' && Number.isFinite(value) +} + +export function isArrayOfLength( + value: unknown, + length: number, +): value is unknown[] { + return Array.isArray(value) && value.length === length +} + +export function isArrayOfLength125(value: unknown): value is unknown[] { + return isArrayOfLength(value, EXPECTED_CHUNK_LENGTH) +} + +export function isArrayOfChunks125( + value: unknown, +): value is unknown[][] { + if (!Array.isArray(value)) { + return false + } + return value.every((chunk) => isArrayOfLength125(chunk)) +} + +export function assertValid( + value: unknown, + guard: (v: unknown) => v is T, + label: string, +): asserts value is T { + if (!guard(value)) { + throw new Error(`Invalid payload: ${label}`) + } +} diff --git a/app/src/http/server.ts b/app/src/http/server.ts new file mode 100644 index 0000000..42ec1de --- /dev/null +++ b/app/src/http/server.ts @@ -0,0 +1,28 @@ +import { readFile } from 'node:fs/promises' +import { createServer } from 'node:http' +import { dirname, join } from 'node:path' +import { fileURLToPath } from 'node:url' + +const httpPort = Number(process.env.HTTP_PORT ?? 80) +const publicDir = join(dirname(fileURLToPath(import.meta.url)), '../../public') +const indexPath = join(publicDir, 'index.html') + +createServer(async (req, res) => { + const path = req.url?.split('?')[0] + + if (path === '/' || path === '/index.html') { + try { + const html = await readFile(indexPath, 'utf8') + res.writeHead(200, { 'Content-Type': 'text/html; charset=utf-8' }) + res.end(html) + } catch (err) { + console.error('http.read_index_error', err) + res.writeHead(500).end('Internal Server Error') + } + return + } + + res.writeHead(404).end('Not Found') +}).listen(httpPort, () => { + console.log('http.server_started', { port: httpPort }) +}) diff --git a/app/src/index.ts b/app/src/index.ts new file mode 100644 index 0000000..f6ead35 --- /dev/null +++ b/app/src/index.ts @@ -0,0 +1,6 @@ +import './handlers/index.js' +import './http/server.js' +import './mqtt.js' +import './stream/edge-chunk-relay.js' + +console.log('mqtt-worker.started') diff --git a/app/src/mqtt.ts b/app/src/mqtt.ts new file mode 100644 index 0000000..a178558 --- /dev/null +++ b/app/src/mqtt.ts @@ -0,0 +1,38 @@ +import mqtt from 'mqtt' + +import { getRegisteredTopics } from './registry.js' +import { routeMessage } from './router.js' + +const mqttUrl = process.env.MQTT_URL ?? 'mqtt://localhost:1883' + +export const mqttClient = mqtt.connect(mqttUrl) + +mqttClient.on('connect', () => { + console.log('mqtt.connected', { url: mqttUrl }) + + const topics = getRegisteredTopics() + if (topics.length === 0) { + console.warn('mqtt.no_topics_registered') + return + } + + mqttClient.subscribe(topics, (err) => { + if (err) { + console.error('mqtt.subscribe_error', err) + return + } + console.log('mqtt.subscribed', { topics }) + }) +}) + +mqttClient.on('message', (topic, payload) => { + void routeMessage(topic, payload) +}) + +mqttClient.on('error', (err) => { + console.error('mqtt.error', err) +}) + +mqttClient.on('reconnect', () => { + console.log('mqtt.reconnect') +}) diff --git a/app/src/registry.ts b/app/src/registry.ts new file mode 100644 index 0000000..ae4febd --- /dev/null +++ b/app/src/registry.ts @@ -0,0 +1,18 @@ +import type { TopicHandler } from './types.js' + +const handlers = new Map() + +export function register(topic: string, handler: TopicHandler): void { + if (handlers.has(topic)) { + throw new Error(`Handler already registered for topic: ${topic}`) + } + handlers.set(topic, handler) +} + +export function getHandler(topic: string): TopicHandler | undefined { + return handlers.get(topic) +} + +export function getRegisteredTopics(): string[] { + return [...handlers.keys()] +} diff --git a/app/src/router.ts b/app/src/router.ts new file mode 100644 index 0000000..a259809 --- /dev/null +++ b/app/src/router.ts @@ -0,0 +1,19 @@ +import { getHandler } from './registry.js' + +export async function routeMessage( + topic: string, + payload: Buffer, +): Promise { + const handler = getHandler(topic) + + if (!handler) { + console.warn('mqtt.unhandled_topic', { topic }) + return + } + + try { + await handler(topic, payload) + } catch (err) { + console.error('mqtt.handler_error', { topic, err }) + } +} diff --git a/app/src/stream/edge-chunk-relay.ts b/app/src/stream/edge-chunk-relay.ts new file mode 100644 index 0000000..040ae55 --- /dev/null +++ b/app/src/stream/edge-chunk-relay.ts @@ -0,0 +1,32 @@ +import type { IncomingMessage } from 'http' +import { WebSocket, WebSocketServer } from 'ws' + +const wsPort = Number(process.env.WS_PORT ?? 9090) + +const wss = new WebSocketServer({ port: wsPort, perMessageDeflate: false }) +const clients = new Set() + +wss.on('connection', (ws: WebSocket, req: IncomingMessage) => { + clients.add(ws) + console.log('ws.client_connected', { + clients: clients.size, + ip: req.socket.remoteAddress, + }) + + ws.on('close', () => { + clients.delete(ws) + console.log('ws.client_closed', { clients: clients.size }) + }) +}) + +wss.on('listening', () => { + console.log('ws.server_started', { port: wsPort }) +}) + +export function onEdgeChunk(chunk: Buffer): void { + for (const client of clients) { + if (client.readyState === WebSocket.OPEN) { + client.send(chunk) + } + } +} diff --git a/app/src/types.ts b/app/src/types.ts new file mode 100644 index 0000000..a3e4378 --- /dev/null +++ b/app/src/types.ts @@ -0,0 +1,9 @@ +export type TopicHandler = ( + topic: string, + payload: Buffer, +) => Promise + +export type TopicSubscription = + | string + | string[] + | Record diff --git a/app/tsconfig.json b/app/tsconfig.json new file mode 100644 index 0000000..a3f07a9 --- /dev/null +++ b/app/tsconfig.json @@ -0,0 +1,14 @@ +{ + "compilerOptions": { + "target": "ES2022", + "module": "NodeNext", + "moduleResolution": "NodeNext", + "strict": true, + "esModuleInterop": true, + "skipLibCheck": true, + "outDir": "dist", + "rootDir": "src", + "noEmit": true + }, + "include": ["src/**/*.ts"] +} diff --git a/docker-compose.yml b/docker-compose.yml new file mode 100644 index 0000000..ccdbdf5 --- /dev/null +++ b/docker-compose.yml @@ -0,0 +1,27 @@ +services: + mosquitto: + image: eclipse-mosquitto:2 + container_name: mosquitto + ports: + - "1883:1883" + volumes: + - ./mosquitto/config:/mosquitto/config + - ./mosquitto/data:/mosquitto/data + - ./mosquitto/log:/mosquitto/log + + app: + build: ./app + container_name: mqtt-worker + depends_on: + - mosquitto + ports: + - "80:80" + - "9090:9090" + environment: + MQTT_URL: mqtt://mosquitto:1883 + HTTP_PORT: "80" + WS_PORT: "9090" + volumes: + - ./app:/app + # Linux node_modules из образа; без этого bind ./app затирает их win32-бинарниками с хоста + - /app/node_modules diff --git a/mosquitto/config/mosquitto.conf b/mosquitto/config/mosquitto.conf new file mode 100644 index 0000000..2fcc864 --- /dev/null +++ b/mosquitto/config/mosquitto.conf @@ -0,0 +1,7 @@ +listener 1883 +allow_anonymous true + +persistence true +persistence_location /mosquitto/data/ + +log_dest file /mosquitto/log/mosquitto.log diff --git a/mosquitto/data/.gitkeep b/mosquitto/data/.gitkeep new file mode 100644 index 0000000..e69de29 diff --git a/mosquitto/log/.gitkeep b/mosquitto/log/.gitkeep new file mode 100644 index 0000000..e69de29