diff --git a/.env.example b/.env.example new file mode 100644 index 0000000..6997a15 --- /dev/null +++ b/.env.example @@ -0,0 +1,5 @@ +HOST_PORT=8152 +PUBLIC_DOMAIN=http://localhost +API_BEARER_TOKEN=replace-with-a-long-random-token +WIFI_SSID=replace-with-your-ssid +WIFI_PASSWORD=replace-with-your-password diff --git a/.gitignore b/.gitignore index 3d01d72..aad2bce 100644 --- a/.gitignore +++ b/.gitignore @@ -11,6 +11,10 @@ build/ .arduino15/ sketch.yaml arduino_secrets.h +.env + +# Local server data +server/data/ # Editors and operating systems .vscode/ diff --git a/README.md b/README.md index c04e773..f07573f 100644 --- a/README.md +++ b/README.md @@ -3,6 +3,9 @@ En samling af Arduino-sketches, eksperimenter og profiler til forskellige boards. +Repoet indeholder desuden en Docker Compose-baseret server til REST-payloads +og et aktivitetsdashboard. Se [`server/`](server/README.md). + Repoet registrerer både Arduino-boards og de eksterne input/output-enheder, der tilsluttes dem. Boardprofiler ligger i `boards/`, enhedsprofiler i `devices/`, og hver enhedsprofil linker til de sketches, hvor enheden bruges. diff --git a/compose.yaml b/compose.yaml new file mode 100644 index 0000000..ac9e36f --- /dev/null +++ b/compose.yaml @@ -0,0 +1,30 @@ +services: + gateway: + image: nginx:1.27-alpine + restart: unless-stopped + ports: + - "${HOST_PORT:-8152}:80" + volumes: + - ./server/nginx.conf:/etc/nginx/conf.d/default.conf:ro + depends_on: + app: + condition: service_healthy + + app: + build: + context: ./server + restart: unless-stopped + environment: + API_BEARER_TOKEN: ${API_BEARER_TOKEN} + PUBLIC_DOMAIN: ${PUBLIC_DOMAIN:-http://localhost} + HOST_PORT: ${HOST_PORT:-8152} + DATA_FILE: /data/payloads.json + volumes: + - server-data:/data + healthcheck: + test: ["CMD", "wget", "-qO-", "http://localhost:3000/api/health"] + interval: 5s + timeout: 3s + retries: 10 +volumes: + server-data: diff --git a/server/.dockerignore b/server/.dockerignore new file mode 100644 index 0000000..7fb6b66 --- /dev/null +++ b/server/.dockerignore @@ -0,0 +1,3 @@ +node_modules +npm-debug.log +data diff --git a/server/Dockerfile b/server/Dockerfile new file mode 100644 index 0000000..cf03ade --- /dev/null +++ b/server/Dockerfile @@ -0,0 +1,11 @@ +FROM node:22-alpine + +WORKDIR /app +COPY package*.json ./ +RUN npm ci --omit=dev +COPY src ./src +COPY public ./public + +ENV NODE_ENV=production +EXPOSE 3000 +CMD ["node", "src/server.js"] diff --git a/server/README.md b/server/README.md new file mode 100644 index 0000000..4e07008 --- /dev/null +++ b/server/README.md @@ -0,0 +1,51 @@ +# Arduino Playground-server + +Compose-stacken leverer: + +- webdashboard på `/`; +- REST API på `/api`. + +## Start + +Opret den lokale `.env` fra WiFi-status-sketchens secrets og start stacken: + +```powershell +npm --prefix server run configure +docker compose up -d --build +``` + +Med standardopsætningen åbnes dashboardet på `http://localhost:8152`. + +## API + +Læsning er offentlig: + +```text +GET /api/health +GET /api/activity +GET /api/payloads +GET /api/payloads/:id +``` + +Skrivning kræver `Authorization: Bearer `: + +```text +POST /api/payloads +PATCH /api/payloads/:id +DELETE /api/payloads/:id +``` + +Eksempel på body til `POST`: + +```json +{ + "topic": "r4/status", + "payload": { + "temperature": 22.4, + "online": true + } +} +``` + +WiFi-oplysningerne ligger kun i den lokale `.env` til brug for den kommende +board-sketch. 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">= 0.8" + } + }, + "node_modules/wrappy": { + "version": "1.0.2", + "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz", + "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==", + "license": "ISC" + } + } +} diff --git a/server/package.json b/server/package.json new file mode 100644 index 0000000..5f705e8 --- /dev/null +++ b/server/package.json @@ -0,0 +1,14 @@ +{ + "name": "arduino-playground-server", + "version": "1.0.0", + "private": true, + "type": "module", + "scripts": { + "configure": "node scripts/configure-env.js", + "start": "node src/server.js", + "test": "node --test" + }, + "dependencies": { + "express": "5.3.0" + } +} diff --git a/server/public/app.js b/server/public/app.js new file mode 100644 index 0000000..3a6c5d5 --- /dev/null +++ b/server/public/app.js @@ -0,0 +1,48 @@ +const elements = { + health: document.querySelector("#health"), + payloadCount: document.querySelector("#payloadCount"), + apiCount: document.querySelector("#apiCount"), + serverCount: document.querySelector("#serverCount"), + activity: document.querySelector("#activity"), + payloads: document.querySelector("#payloads"), + refresh: document.querySelector("#refresh"), +}; + +function escapeHtml(value) { + return String(value).replace(/[&<>'"]/g, (character) => ({ + "&": "&", "<": "<", ">": ">", "'": "'", '"': """, + })[character]); +} + +async function refresh() { + try { + const [healthResponse, payloadResponse, activityResponse] = await Promise.all([ + fetch("/api/health"), fetch("/api/payloads"), fetch("/api/activity"), + ]); + if (![healthResponse, payloadResponse, activityResponse].every((response) => response.ok)) { + throw new Error("Serveren returnerede en fejl"); + } + const [health, payloads, activity] = await Promise.all([ + healthResponse.json(), payloadResponse.json(), activityResponse.json(), + ]); + elements.health.textContent = "API online"; + elements.health.className = "status online"; + elements.payloadCount.textContent = payloads.length; + elements.apiCount.textContent = activity.filter((event) => event.source === "api").length; + elements.serverCount.textContent = activity.filter((event) => event.source === "server").length; + elements.payloads.textContent = JSON.stringify(payloads, null, 2); + elements.activity.innerHTML = activity.slice(0, 30).map((event) => ` +
+ ${escapeHtml(event.source)} + ${new Date(event.timestamp).toLocaleTimeString("da-DK")} + ${escapeHtml(event.action)} ${escapeHtml(JSON.stringify(event.detail))} +
`).join("") || "

Ingen hændelser endnu.

"; + } catch (error) { + elements.health.textContent = "Server offline"; + elements.health.className = "status"; + } +} + +elements.refresh.addEventListener("click", refresh); +refresh(); +setInterval(refresh, 3000); diff --git a/server/public/index.html b/server/public/index.html new file mode 100644 index 0000000..32fda60 --- /dev/null +++ b/server/public/index.html @@ -0,0 +1,44 @@ + + + + + + Arduino Playground + + + +
+
+
+

Arduino UNO R4 WiFi

+

Serveraktivitet

+

Live overblik over REST API-trafik fra Arduino-boardet.

+
+
Forbinder…
+
+ +
+
Gemte payloads–
+
API-hændelser–
+
Serverhændelser–
+
+ +
+
+

Aktivitet

Seneste hændelser

+ +
+
+
+ +
+
+

API

Payloads

+ GET /api/payloads +
+ 
Indlæser…
+
+
+ + + diff --git a/server/public/styles.css b/server/public/styles.css new file mode 100644 index 0000000..1c0a8c0 --- /dev/null +++ b/server/public/styles.css @@ -0,0 +1,34 @@ +:root { + color-scheme: dark; + font-family: Inter, ui-sans-serif, system-ui, sans-serif; + background: #07110e; + color: #e5f7ef; +} +* { box-sizing: border-box; } +body { margin: 0; min-height: 100vh; background: radial-gradient(circle at top right, #123d32, transparent 36%), #07110e; } +main { width: min(1100px, calc(100% - 32px)); margin: 0 auto; padding: 56px 0; } +header, .panel-heading { display: flex; justify-content: space-between; align-items: center; gap: 24px; } +h1 { margin: 4px 0 8px; font-size: clamp(2rem, 6vw, 4.5rem); letter-spacing: -.055em; } +h2 { margin: 2px 0; } +p { color: #91a99f; } +.eyebrow { color: #62e6ae; margin: 0; text-transform: uppercase; font-size: .72rem; font-weight: 800; letter-spacing: .16em; } +.status, button, code { border: 1px solid #285244; background: #10231d; border-radius: 999px; padding: 10px 14px; } +.status.online { color: #62e6ae; } +.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 36px 0 16px; } +.metrics article, .panel { border: 1px solid #1d3a31; background: rgba(11, 28, 23, .88); border-radius: 18px; } +.metrics article { padding: 22px; } +.metrics span { color: #91a99f; display: block; font-size: .85rem; } +.metrics strong { display: block; margin-top: 8px; font-size: 2.2rem; } +.panel { padding: 24px; margin-top: 16px; } +button { color: #e5f7ef; cursor: pointer; } +.activity { margin-top: 18px; display: grid; gap: 8px; } +.event { display: grid; grid-template-columns: 85px 110px 1fr; gap: 12px; padding: 12px 0; border-top: 1px solid #183129; } +.source { color: #62e6ae; text-transform: uppercase; font-size: .72rem; font-weight: 800; } +.time { color: #6f887e; font-variant-numeric: tabular-nums; } +pre { overflow: auto; color: #bfead8; background: #07110e; padding: 18px; border-radius: 12px; } +@media (max-width: 650px) { + header, .panel-heading { align-items: flex-start; flex-direction: column; } + .metrics { grid-template-columns: 1fr; } + .event { grid-template-columns: 70px 1fr; } + .event .detail { grid-column: 1 / -1; } +} diff --git a/server/scripts/configure-env.js b/server/scripts/configure-env.js new file mode 100644 index 0000000..ad65965 --- /dev/null +++ b/server/scripts/configure-env.js @@ -0,0 +1,33 @@ +import crypto from "node:crypto"; +import fs from "node:fs/promises"; +import path from "node:path"; +import { fileURLToPath } from "node:url"; + +const serverDir = path.dirname(path.dirname(fileURLToPath(import.meta.url))); +const repositoryRoot = path.dirname(serverDir); +const secretsPath = path.join( + repositoryRoot, + "sketches", + "arduino-uno-r4-wifi", + "wifi_matrix_status", + "arduino_secrets.h", +); + +const secrets = await fs.readFile(secretsPath, "utf8"); +const readDefine = (name) => { + const match = secrets.match(new RegExp(`^#define\\s+${name}\\s+"((?:\\\\.|[^"])*)"`, "m")); + if (!match) throw new Error(`${name} was not found in ${secretsPath}`); + return JSON.parse(`"${match[1]}"`); +}; + +const env = [ + "HOST_PORT=8152", + "PUBLIC_DOMAIN=http://localhost", + `API_BEARER_TOKEN=${crypto.randomBytes(32).toString("base64url")}`, + `WIFI_SSID=${JSON.stringify(readDefine("SECRET_SSID"))}`, + `WIFI_PASSWORD=${JSON.stringify(readDefine("SECRET_PASS"))}`, + "", +].join("\n"); + +await fs.writeFile(path.join(repositoryRoot, ".env"), env, { mode: 0o600 }); +console.log("Created .env with HOST_PORT=8152, PUBLIC_DOMAIN=http://localhost and local secrets."); diff --git a/server/src/server.js b/server/src/server.js new file mode 100644 index 0000000..7c905e4 --- /dev/null +++ b/server/src/server.js @@ -0,0 +1,139 @@ +import crypto from "node:crypto"; +import fs from "node:fs/promises"; +import path from "node:path"; +import express from "express"; + +const port = 3000; +const dataFile = process.env.DATA_FILE ?? "/data/payloads.json"; +const bearerToken = process.env.API_BEARER_TOKEN ?? ""; +const publicDir = path.resolve("public"); +const activity = []; +let payloads = []; + +function record(source, action, detail = {}) { + activity.unshift({ + id: crypto.randomUUID(), + timestamp: new Date().toISOString(), + source, + action, + detail, + }); + activity.splice(200); +} + +async function loadPayloads() { + try { + payloads = JSON.parse(await fs.readFile(dataFile, "utf8")); + } catch (error) { + if (error.code !== "ENOENT") throw error; + await persistPayloads(); + } +} + +async function persistPayloads() { + await fs.mkdir(path.dirname(dataFile), { recursive: true }); + const temporaryFile = `${dataFile}.tmp`; + await fs.writeFile(temporaryFile, JSON.stringify(payloads, null, 2)); + await fs.rename(temporaryFile, dataFile); +} + +function requireBearer(req, res, next) { + if (!bearerToken) { + return res.status(503).json({ error: "API_BEARER_TOKEN is not configured" }); + } + const supplied = req.get("authorization")?.replace(/^Bearer\s+/i, "") ?? ""; + const expected = Buffer.from(bearerToken); + const actual = Buffer.from(supplied); + if (expected.length !== actual.length || !crypto.timingSafeEqual(expected, actual)) { + record("api", "auth_failed", { method: req.method, path: req.path }); + return res.status(401).json({ error: "A valid bearer token is required" }); + } + next(); +} + +const app = express(); +app.disable("x-powered-by"); +app.use(express.json({ limit: "64kb" })); +app.use((req, res, next) => { + if (req.path.startsWith("/api/") && !["/api/activity", "/api/health"].includes(req.path)) { + res.on("finish", () => { + record("api", "request", { method: req.method, path: req.path, status: res.statusCode }); + }); + } + next(); +}); + +app.get("/api/health", (_req, res) => { + res.json({ status: "ok", timestamp: new Date().toISOString() }); +}); + +app.get("/api/payloads", (_req, res) => res.json(payloads)); + +app.get("/api/payloads/:id", (req, res) => { + const payload = payloads.find((item) => item.id === req.params.id); + if (!payload) return res.status(404).json({ error: "Payload not found" }); + res.json(payload); +}); + +app.post("/api/payloads", requireBearer, async (req, res, next) => { + try { + const now = new Date().toISOString(); + const payload = { + id: crypto.randomUUID(), + topic: typeof req.body.topic === "string" ? req.body.topic : "r4/api", + payload: req.body.payload ?? req.body, + createdAt: now, + updatedAt: now, + }; + payloads.push(payload); + await persistPayloads(); + record("api", "created", { id: payload.id, topic: payload.topic }); + res.status(201).json(payload); + } catch (error) { + next(error); + } +}); + +app.patch("/api/payloads/:id", requireBearer, async (req, res, next) => { + try { + const index = payloads.findIndex((item) => item.id === req.params.id); + if (index === -1) return res.status(404).json({ error: "Payload not found" }); + payloads[index] = { + ...payloads[index], + ...(typeof req.body.topic === "string" ? { topic: req.body.topic } : {}), + ...(Object.hasOwn(req.body, "payload") ? { payload: req.body.payload } : {}), + updatedAt: new Date().toISOString(), + }; + await persistPayloads(); + record("api", "updated", { id: req.params.id, topic: payloads[index].topic }); + res.json(payloads[index]); + } catch (error) { + next(error); + } +}); + +app.delete("/api/payloads/:id", requireBearer, async (req, res, next) => { + try { + const index = payloads.findIndex((item) => item.id === req.params.id); + if (index === -1) return res.status(404).json({ error: "Payload not found" }); + const [removed] = payloads.splice(index, 1); + await persistPayloads(); + record("api", "deleted", { id: removed.id, topic: removed.topic }); + res.status(204).end(); + } catch (error) { + next(error); + } +}); + +app.get("/api/activity", (_req, res) => res.json(activity)); + +app.use(express.static(publicDir)); +app.get(/.*/, (_req, res) => res.sendFile(path.join(publicDir, "index.html"))); + +app.use((error, req, res, _next) => { + record("api", "error", { method: req.method, path: req.path, message: error.message }); + res.status(error.type === "entity.parse.failed" ? 400 : 500).json({ error: error.message }); +}); + +await loadPayloads(); +app.listen(port, () => record("server", "started", { port }));