++ Prima versione del designer piantine + Skill grafica

2026-08-28 15:32:14 +02:00
parent 8aa29cc467
commit 7e4c8aa9b8
62 changed files with 16340 additions and 4 deletions
--- a/docker/nginx/default.conf
+++ b/docker/nginx/default.conf
@@ -52,6 +52,24 @@ server {
        fastcgi_pass 127.0.0.1:9000;
        fastcgi_split_path_info ^(.+\.php)(/.*)$;
        include fastcgi_params;
+
+        # Restores the port, which nginx's own fastcgi_params drops.
+        #
+        # Since nginx 1.26 the packaged fastcgi_params sets HTTP_HOST to $host
+        # instead of $http_host. $host carries the hostname only: a request to
+        # localhost:8090 reaches PHP as "localhost". Laravel then rebuilds the
+        # request URL without the port, while URL::forceRootUrl() (see
+        # AppServiceProvider) generates links WITH it — so every signed URL
+        # fails validation. Concretely: all Livewire file uploads answer 401,
+        # because the upload endpoint aborts on an invalid signature.
+        #
+        # Only bites when APP_URL carries a non-standard port, i.e. local
+        # development. In production APP_URL has no port and the two forms
+        # agree. Forwarding the raw header is safe here because trustHosts()
+        # in bootstrap/app.php already rejects any Host that is not APP_URL's,
+        # localhost or 127.0.0.1.
+        fastcgi_param HTTP_HOST $http_host;
+
        fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
        fastcgi_param PATH_INFO $fastcgi_path_info;
        fastcgi_param DOCUMENT_ROOT $realpath_root;
--- a/docker/renderer/Dockerfile
+++ b/docker/renderer/Dockerfile
@@ -0,0 +1,31 @@
+# =============================================================================
+# Renderer di piantine (servizio autonomo)
+#
+# Container separato dall'applicazione: TerManager2 gli parla solo via HTTP
+# sulla rete interna. Nessun accesso al database ne' al volume storage.
+# =============================================================================
+FROM node:20-alpine
+
+WORKDIR /srv
+
+# Senza un font installato, librsvg rende l'attribuzione OSM come quadratini.
+RUN apk add --no-cache font-dejavu fontconfig
+
+COPY package.json ./
+RUN npm install --omit=dev --no-audit --no-fund
+
+COPY server.js ./
+
+# La cache delle tessere persiste in un volume: riavvii e redeploy non
+# ributtano il carico su tile.openstreetmap.org.
+RUN mkdir -p /tile-cache && chown node:node /tile-cache
+
+ENV NODE_ENV=production
+USER node
+
+EXPOSE 3000
+
+HEALTHCHECK --interval=30s --timeout=5s --start-period=15s --retries=3 \
+    CMD wget -q -O /dev/null http://127.0.0.1:3000/healthz || exit 1
+
+CMD ["node", "server.js"]
--- a/docker/renderer/package.json
+++ b/docker/renderer/package.json
@@ -0,0 +1,9 @@
+{
+    "name": "termanager2-map-renderer",
+    "private": true,
+    "type": "module",
+    "description": "Renderer di piantine: tessere OpenStreetMap + confine del territorio, restituisce PNG ad alta definizione.",
+    "dependencies": {
+        "sharp": "^0.33.4"
+    }
+}
--- a/docker/renderer/server.js
+++ b/docker/renderer/server.js
@@ -0,0 +1,335 @@
+/**
+ * Renderer di piantine per TerManager2.
+ *
+ * Servizio autonomo: riceve un poligono (coordinate GeoJSON, lng/lat) e
+ * restituisce un PNG ad alta definizione composto dalle tessere OpenStreetMap,
+ * con il confine del territorio evidenziato e l'esterno attenuato.
+ *
+ * Non tocca il database ne' i file dell'applicazione: parla solo HTTP.
+ *
+ *   POST /render   { geometry, marginRatio?, maxSide?, maxZoom?, ... } -> image/png
+ *   GET  /healthz  -> 200 "ok"
+ *
+ * Le tessere vengono scaricate da tile.openstreetmap.org nel rispetto della
+ * tile usage policy: User-Agent identificante, cache su disco persistente,
+ * concorrenza limitata. L'attribuzione OSM viene impressa sull'immagine,
+ * come richiesto dalla licenza ODbL/CC-BY-SA.
+ */
+
+import http from 'node:http';
+import { mkdir, readFile, writeFile } from 'node:fs/promises';
+import path from 'node:path';
+import sharp from 'sharp';
+
+const PORT = Number(process.env.PORT || 3000);
+const TILE_URL = process.env.TILE_URL || 'https://tile.openstreetmap.org/{z}/{x}/{y}.png';
+const CACHE_DIR = process.env.TILE_CACHE_DIR || '/tile-cache';
+const USER_AGENT = process.env.TILE_USER_AGENT
+    || 'TerManager2-MapRenderer/1.0 (rendering di piantine di territorio; contatto: admin@pyconetwork.it)';
+const TILE_SIZE = 256;
+const FETCH_CONCURRENCY = 6;
+const MAX_TILES = 1600; // valvola: nessuna richiesta legittima arriva qui
+
+// ─── Proiezione Web Mercator ────────────────────────────────────────────────
+
+function project(lng, lat, zoom) {
+    const scale = TILE_SIZE * 2 ** zoom;
+    const clampedLat = Math.max(-85.05112878, Math.min(85.05112878, lat));
+    const x = ((lng + 180) / 360) * scale;
+    const sinLat = Math.sin((clampedLat * Math.PI) / 180);
+    const y = (0.5 - Math.log((1 + sinLat) / (1 - sinLat)) / (4 * Math.PI)) * scale;
+    return [x, y];
+}
+
+/**
+ * Normalizza Polygon/MultiPolygon GeoJSON in un elenco di anelli
+ * [[lng,lat], ...]. Il primo anello di ogni poligono e' il perimetro; gli
+ * eventuali successivi (buchi) vengono mantenuti: il fill-rule evenodd
+ * dell'overlay li gestisce da solo.
+ */
+function extractRings(geometry) {
+    if (!geometry || !geometry.type || !Array.isArray(geometry.coordinates)) {
+        throw new Error('geometry mancante o non valida');
+    }
+
+    let polygons;
+    if (geometry.type === 'Polygon') {
+        polygons = [geometry.coordinates];
+    } else if (geometry.type === 'MultiPolygon') {
+        polygons = geometry.coordinates;
+    } else {
+        throw new Error(`tipo di geometria non supportato: ${geometry.type}`);
+    }
+
+    const rings = polygons.flat().map((ring) =>
+        ring.map(([lng, lat]) => {
+            if (typeof lng !== 'number' || typeof lat !== 'number') {
+                throw new Error('coordinate non numeriche nella geometry');
+            }
+            return [lng, lat];
+        })
+    );
+
+    if (rings.length === 0 || rings[0].length < 3) {
+        throw new Error('il poligono deve avere almeno 3 vertici');
+    }
+
+    return rings;
+}
+
+// ─── Tessere ────────────────────────────────────────────────────────────────
+
+async function fetchTile(z, x, y) {
+    const cachePath = path.join(CACHE_DIR, String(z), String(x), `${y}.png`);
+
+    try {
+        return await readFile(cachePath);
+    } catch {
+        // non in cache: si scarica
+    }
+
+    const url = TILE_URL.replace('{z}', z).replace('{x}', x).replace('{y}', y);
+
+    let lastError;
+    for (let attempt = 1; attempt <= 2; attempt++) {
+        try {
+            const res = await fetch(url, { headers: { 'User-Agent': USER_AGENT } });
+            if (!res.ok) {
+                throw new Error(`HTTP ${res.status} per ${url}`);
+            }
+            const buffer = Buffer.from(await res.arrayBuffer());
+
+            // La cache e' un'ottimizzazione: se il disco non collabora si
+            // prosegue lo stesso con la tessera appena scaricata.
+            try {
+                await mkdir(path.dirname(cachePath), { recursive: true });
+                await writeFile(cachePath, buffer);
+            } catch {
+                // ignorata di proposito
+            }
+
+            return buffer;
+        } catch (err) {
+            lastError = err;
+            if (attempt < 2) {
+                await new Promise((r) => setTimeout(r, 500));
+            }
+        }
+    }
+    throw lastError;
+}
+
+async function fetchTiles(jobs) {
+    const results = new Array(jobs.length);
+    let next = 0;
+
+    async function worker() {
+        while (next < jobs.length) {
+            const index = next++;
+            const { z, x, y } = jobs[index];
+            results[index] = await fetchTile(z, x, y);
+        }
+    }
+
+    await Promise.all(
+        Array.from({ length: Math.min(FETCH_CONCURRENCY, jobs.length) }, worker)
+    );
+
+    return results;
+}
+
+// ─── Rendering ──────────────────────────────────────────────────────────────
+
+function svgEscape(text) {
+    return String(text)
+        .replaceAll('&', '&amp;')
+        .replaceAll('<', '&lt;')
+        .replaceAll('>', '&gt;');
+}
+
+async function render(body) {
+    const rings = extractRings(body.geometry);
+    const marginRatio = Math.min(Math.max(Number(body.marginRatio ?? 0.15), 0), 1);
+    const maxSide = Math.min(Math.max(Number(body.maxSide ?? 4096), 512), 8192);
+    const maxZoom = Math.min(Math.max(Number(body.maxZoom ?? 18), 10), 19);
+    const dimOpacity = Math.min(Math.max(Number(body.dimOpacity ?? 0.55), 0), 0.9);
+    const strokeColor = /^#[0-9a-fA-F]{6}$/.test(body.strokeColor ?? '') ? body.strokeColor : '#d81b1b';
+    const attribution = body.attribution === false ? null : '© OpenStreetMap contributors';
+
+    // Riquadro geografico del poligono.
+    let minLng = Infinity, minLat = Infinity, maxLng = -Infinity, maxLat = -Infinity;
+    for (const ring of rings) {
+        for (const [lng, lat] of ring) {
+            minLng = Math.min(minLng, lng); maxLng = Math.max(maxLng, lng);
+            minLat = Math.min(minLat, lat); maxLat = Math.max(maxLat, lat);
+        }
+    }
+
+    // Zoom piu' alto (max maxZoom) al quale il riquadro, margine compreso,
+    // sta dentro maxSide pixel: massima definizione utile senza esplodere.
+    let zoom = maxZoom;
+    for (; zoom > 1; zoom--) {
+        const [x0, y0] = project(minLng, maxLat, zoom);
+        const [x1, y1] = project(maxLng, minLat, zoom);
+        const longest = Math.max(x1 - x0, y1 - y0) * (1 + marginRatio * 2);
+        if (longest <= maxSide) {
+            break;
+        }
+    }
+
+    const [pxMinX, pxMinY] = project(minLng, maxLat, zoom);
+    const [pxMaxX, pxMaxY] = project(maxLng, minLat, zoom);
+    const margin = Math.round(Math.max(pxMaxX - pxMinX, pxMaxY - pxMinY) * marginRatio);
+
+    const worldSize = TILE_SIZE * 2 ** zoom;
+    const cropMinX = Math.max(0, Math.floor(pxMinX - margin));
+    const cropMinY = Math.max(0, Math.floor(pxMinY - margin));
+    const cropMaxX = Math.min(worldSize, Math.ceil(pxMaxX + margin));
+    const cropMaxY = Math.min(worldSize, Math.ceil(pxMaxY + margin));
+
+    const tileMinX = Math.floor(cropMinX / TILE_SIZE);
+    const tileMinY = Math.floor(cropMinY / TILE_SIZE);
+    const tileMaxX = Math.floor((cropMaxX - 1) / TILE_SIZE);
+    const tileMaxY = Math.floor((cropMaxY - 1) / TILE_SIZE);
+
+    const tileCount = (tileMaxX - tileMinX + 1) * (tileMaxY - tileMinY + 1);
+    if (tileCount > MAX_TILES) {
+        const err = new Error(`area troppo estesa: ${tileCount} tessere allo zoom ${zoom}`);
+        err.statusCode = 413;
+        throw err;
+    }
+
+    const jobs = [];
+    for (let ty = tileMinY; ty <= tileMaxY; ty++) {
+        for (let tx = tileMinX; tx <= tileMaxX; tx++) {
+            jobs.push({ z: zoom, x: tx, y: ty });
+        }
+    }
+    const buffers = await fetchTiles(jobs);
+
+    const canvasW = (tileMaxX - tileMinX + 1) * TILE_SIZE;
+    const canvasH = (tileMaxY - tileMinY + 1) * TILE_SIZE;
+    const originX = tileMinX * TILE_SIZE;
+    const originY = tileMinY * TILE_SIZE;
+
+    const tileLayers = buffers.map((buffer, i) => ({
+        input: buffer,
+        left: (jobs[i].x - tileMinX) * TILE_SIZE,
+        top: (jobs[i].y - tileMinY) * TILE_SIZE,
+    }));
+
+    // Percorso SVG del poligono nelle coordinate della tela.
+    const ringPaths = rings.map((ring) => {
+        const points = ring.map(([lng, lat]) => {
+            const [px, py] = project(lng, lat, zoom);
+            return `${(px - originX).toFixed(1)},${(py - originY).toFixed(1)}`;
+        });
+        return `M${points.join('L')}Z`;
+    });
+    const polygonPath = ringPaths.join(' ');
+
+    // Velo bianco su tutta la tela con il poligono come buco (evenodd):
+    // l'esterno sbiadisce, l'interno resta pieno. Sopra, il confine marcato.
+    const overlay = `<svg width="${canvasW}" height="${canvasH}" xmlns="http://www.w3.org/2000/svg">
+        <path d="M0,0H${canvasW}V${canvasH}H0Z ${polygonPath}" fill="#ffffff" fill-opacity="${dimOpacity}" fill-rule="evenodd"/>
+        <path d="${polygonPath}" fill="none" stroke="${strokeColor}" stroke-width="7" stroke-linejoin="round" stroke-opacity="0.9"/>
+    </svg>`;
+
+    // Composizione e ritaglio in due passaggi: nella pipeline di sharp
+    // extract() verrebbe applicato alla tela PRIMA di composite(), e le
+    // tessere non ci starebbero piu'.
+    const composto = await sharp({
+        create: { width: canvasW, height: canvasH, channels: 3, background: '#ffffff' },
+        limitInputPixels: false,
+    })
+        .composite([...tileLayers, { input: Buffer.from(overlay), left: 0, top: 0 }])
+        .flatten()
+        .png()
+        .toBuffer();
+
+    const cropped = await sharp(composto, { limitInputPixels: false })
+        .extract({
+            left: cropMinX - originX,
+            top: cropMinY - originY,
+            width: cropMaxX - cropMinX,
+            height: cropMaxY - cropMinY,
+        })
+        .toBuffer();
+
+    if (!attribution) {
+        return sharp(cropped).png().toBuffer();
+    }
+
+    const outW = cropMaxX - cropMinX;
+    const outH = cropMaxY - cropMinY;
+    const label = svgEscape(attribution);
+    const labelW = Math.min(outW, label.length * 8 + 16);
+    const attributionSvg = `<svg width="${labelW}" height="22" xmlns="http://www.w3.org/2000/svg">
+        <rect width="${labelW}" height="22" fill="#ffffff" fill-opacity="0.75"/>
+        <text x="${labelW - 8}" y="15" text-anchor="end" font-family="DejaVu Sans, Arial, sans-serif" font-size="12" fill="#333333">${label}</text>
+    </svg>`;
+
+    return sharp(cropped)
+        .composite([{ input: Buffer.from(attributionSvg), left: outW - labelW, top: outH - 22 }])
+        .png()
+        .toBuffer();
+}
+
+// ─── HTTP ───────────────────────────────────────────────────────────────────
+
+function readBody(req, limitBytes = 4 * 1024 * 1024) {
+    return new Promise((resolve, reject) => {
+        const chunks = [];
+        let size = 0;
+        req.on('data', (chunk) => {
+            size += chunk.length;
+            if (size > limitBytes) {
+                reject(Object.assign(new Error('corpo della richiesta troppo grande'), { statusCode: 413 }));
+                req.destroy();
+                return;
+            }
+            chunks.push(chunk);
+        });
+        req.on('end', () => resolve(Buffer.concat(chunks)));
+        req.on('error', reject);
+    });
+}
+
+const server = http.createServer(async (req, res) => {
+    try {
+        if (req.method === 'GET' && req.url === '/healthz') {
+            res.writeHead(200, { 'Content-Type': 'text/plain' });
+            res.end('ok');
+            return;
+        }
+
+        if (req.method === 'POST' && req.url === '/render') {
+            const raw = await readBody(req);
+            let body;
+            try {
+                body = JSON.parse(raw.toString('utf8'));
+            } catch {
+                res.writeHead(400, { 'Content-Type': 'application/json' });
+                res.end(JSON.stringify({ error: 'JSON non valido' }));
+                return;
+            }
+
+            const png = await render(body);
+            res.writeHead(200, { 'Content-Type': 'image/png', 'Content-Length': png.length });
+            res.end(png);
+            return;
+        }
+
+        res.writeHead(404, { 'Content-Type': 'application/json' });
+        res.end(JSON.stringify({ error: 'non trovato' }));
+    } catch (err) {
+        const status = err.statusCode || 500;
+        console.error(`[render] ${err.message}`);
+        res.writeHead(status, { 'Content-Type': 'application/json' });
+        res.end(JSON.stringify({ error: err.message }));
+    }
+});
+
+server.listen(PORT, () => {
+    console.log(`map-renderer in ascolto sulla porta ${PORT}, cache tessere in ${CACHE_DIR}`);
+});