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feat(server): ✨ Serve files locally instead of proxying from the CDN

This commit is contained in:
Janek 2025-05-15 21:00:21 +00:00
parent 2d90e1e2b3
commit 1791831f8f
2 changed files with 98 additions and 100 deletions
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23
build/package.json → package.json Executable file → Normal file
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@ -1,13 +1,12 @@
{
"name": "test-repo",
"version": "1.0.0",
"main": "server.js",
"scripts": {
"start": "node server.js"
},
"type": "module",
"dependencies": {
"express": "^4.18.2",
"node-fetch": "^3.3.0"
}
{
"name": "selfh-st_icons",
"version": "1.0.0",
"main": "server.js",
"scripts": {
"start": "node server.js"
},
"type": "module",
"dependencies": {
"express": "^4.18.2"
}
}

175
build/server.js → server.js Executable file → Normal file
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@ -1,89 +1,88 @@
import express from 'express'
import fetch from 'node-fetch'
import path from 'path'
const app = express()
const PORT = 4050
const CDN_ROOT = 'https://cdn.jsdelivr.net/gh/selfhst/icons'
const CDN_PATH = 'svg'
async function fileExists(url) {
try {
const resp = await fetch(url, { method: 'HEAD' });
return resp.ok;
} catch {
return false;
}
}
async function fetchAndPipe(url, res) {
const response = await fetch(url);
if (!response.ok) return res.status(404).send('File not found');
res.type(path.extname(url).slice(1));
response.body.pipe(res);
}
app.get('/*', async (req, res) => {
const urlPath = req.path;
const extMatch = urlPath.match(/\.(\w+)$/);
if (!extMatch)
return res.status(404).send('File extension missing');
const ext = extMatch[1].toLowerCase();
if (!['png', 'webp', 'svg'].includes(ext))
return res.status(404).send('Format not supported');
const filename = urlPath.slice(1);
const lowerFilename = filename.toLowerCase();
const isSuffix = lowerFilename.endsWith('-light.svg') || lowerFilename.endsWith('-dark.svg');
if (isSuffix) {
return fetchAndPipe(`${CDN_ROOT}/${CDN_PATH}/${filename}`, res);
}
let mainUrl;
if (ext === 'png') {
mainUrl = `${CDN_ROOT}/png/${filename}`;
} else if (ext === 'webp') {
mainUrl = `${CDN_ROOT}/webp/${filename}`;
} else if (ext === 'svg') {
mainUrl = `${CDN_ROOT}/svg/${filename}`;
} else {
mainUrl = null;
}
const hasColor = !!req.query['color'] && req.query['color'].trim() !== '';
if (ext === 'svg') {
if (hasColor) {
const baseName = filename.replace(/\.(png|webp|svg)$/, '');
const suffixUrl = `${CDN_ROOT}/${CDN_PATH}/${baseName}-light.svg`;
if (await fileExists(suffixUrl)) {
let svgContent = await fetch(suffixUrl).then(r => r.text());
const color = req.query['color'].startsWith('#') ? req.query['color'] : `#${req.query['color']}`;
svgContent = svgContent
.replace(/style="[^"]*fill:\s*#fff[^"]*"/gi, (match) => {
console.log('Replacing style fill:', match);
return match.replace(/fill:\s*#fff/gi, `fill:${color}`);
})
.replace(/fill="#fff"/gi, `fill="${color}"`);
return res.type('image/svg+xml').send(svgContent);
} else {
return fetchAndPipe(mainUrl, res);
}
} else {
return fetchAndPipe(mainUrl, res);
}
} else {
// PNG/WebP: serve directly
return fetchAndPipe(mainUrl, res);
}
});
app.get('/', (req, res) => {
res.send('Self-hosted icon server');
});
app.listen(PORT, () => {
console.log(`Listening on port ${PORT}`);
import fs from 'fs'
import express from 'express'
import path from 'path'
const app = express()
const PORT = 4050
const APP_DIR = process.cwd()
async function readFile(filePath, res) {
const readStream = fs.createReadStream(filePath);
readStream.on("open", () => {
res.type(path.extname(filePath).slice(1));
readStream.pipe(res);
});
readStream.on("error", () => {
res.set("Content-Type", "text/plain");
res.status(404).end("Not found");
});
}
app.get('/', (_req, res) => {
res.send('Self-hosted icon server');
});
app.get('/*', async (req, res) => {
const urlPath = req.path;
const extMatch = urlPath.match(/\.(\w+)$/);
if (!extMatch)
return res.status(404).send('File extension missing');
const ext = extMatch[1].toLowerCase();
if (!['png', 'webp', 'svg'].includes(ext))
return res.status(404).send('Format not supported');
const filename = urlPath.slice(1);
const lowerFilename = filename.toLowerCase();
const isSuffix = lowerFilename.endsWith('-light.svg') || lowerFilename.endsWith('-dark.svg');
if (isSuffix) {
return readFile(`${APP_DIR}/svg/${filename}`, res);
}
let filePath;
if (ext === 'png') {
filePath = `${APP_DIR}/png/${filename}`;
} else if (ext === 'webp') {
filePath = `${APP_DIR}/webp/${filename}`;
} else if (ext === 'svg') {
filePath = `${APP_DIR}/svg/${filename}`;
} else {
filePath = null;
}
const hasColor = !!req.query['color'] && req.query['color'].trim() !== '';
if (ext === 'svg') {
if (hasColor) {
const baseName = filename.replace(/\.(png|webp|svg)$/, '');
const baseFile = `${APP_DIR}/svg/${baseName}-light.svg`;
if (fs.existsSync(baseFile)) {
let svgContent = fs.readFileSync(baseFile, { encoding: 'utf-8'});
const color = req.query['color'].startsWith('#') ? req.query['color'] : `#${req.query['color']}`;
svgContent = svgContent
.replace(/style="[^"]*fill:\s*#fff[^"]*"/gi, (match) => {
console.log('Replacing style fill:', match);
return match.replace(/fill:\s*#fff/gi, `fill:${color}`);
})
.replace(/fill="#fff"/gi, `fill="${color}"`);
return res.type('image/svg+xml').send(svgContent);
} else {
return res.status(404).end("Not found");
}
} else {
return readFile(filePath, res);
}
} else {
// PNG/WebP: serve directly
return readFile(filePath, res);
}
});
app.listen(PORT, () => {
console.log(`Listening on port ${PORT}`);
});