Puppeteer: Remove express dependency. (#32649)

test/e2e/puppeteer.js

@@ -1,9 +1,8 @@
 import puppeteer from 'puppeteer';
-import express from 'express';
-import path from 'path';
 import pixelmatch from 'pixelmatch';
 import { Jimp } from 'jimp';
 import * as fs from 'fs/promises';
+import server from './server.js';
 
 const exceptionList = [
 
@@ -117,9 +116,7 @@ let browser;
 
 /* Launch server */
 
-const app = express();
-app.use( express.static( path.resolve() ) );
-const server = app.listen( port, main );
+server.listen( port, main );
 
 process.on( 'SIGINT', async () => {
 

test/e2e/server.js

@@ -0,0 +1,89 @@
+import http from 'http';
+import path from 'path';
+import { createReadStream, existsSync, statSync } from 'fs';
+
+const mimeTypes = {
+	'.html': 'text/html',
+	'.js': 'application/javascript',
+	'.css': 'text/css',
+	'.json': 'application/json',
+	'.png': 'image/png',
+	'.jpg': 'image/jpeg',
+	'.gif': 'image/gif',
+	'.svg': 'image/svg+xml',
+	'.mp3': 'audio/mpeg',
+	'.mp4': 'video/mp4',
+	'.webm': 'video/webm',
+	'.ogv': 'video/ogg',
+	'.ogg': 'audio/ogg',
+	'.woff': 'font/woff',
+	'.woff2': 'font/woff2',
+	'.ttf': 'font/ttf',
+	'.glb': 'model/gltf-binary',
+	'.gltf': 'model/gltf+json',
+	'.hdr': 'application/octet-stream',
+	'.exr': 'application/octet-stream',
+	'.fbx': 'application/octet-stream',
+	'.bin': 'application/octet-stream',
+	'.cube': 'text/plain'
+};
+
+const rootDirectory = path.resolve();
+
+const server = http.createServer( ( req, res ) => {
+
+	const pathname = decodeURIComponent( req.url.split( '?' )[ 0 ] );
+	const filePath = path.normalize( path.join( rootDirectory, pathname ) );
+
+	// Prevent path traversal attacks
+	if ( ! filePath.startsWith( rootDirectory ) ) {
+
+		res.writeHead( 403 );
+		res.end( 'Forbidden' );
+		return;
+
+	}
+
+	if ( ! existsSync( filePath ) ) {
+
+		res.writeHead( 404 );
+		res.end( 'File not found' );
+		return;
+
+	}
+
+	const ext = path.extname( filePath ).toLowerCase();
+	const contentType = mimeTypes[ ext ] || 'application/octet-stream';
+	const stat = statSync( filePath );
+	const fileSize = stat.size;
+	const range = req.headers.range;
+
+	if ( range ) {
+
+		const parts = range.replace( /bytes=/, '' ).split( '-' );
+		const start = parseInt( parts[ 0 ], 10 );
+		const end = parts[ 1 ] ? parseInt( parts[ 1 ], 10 ) : fileSize - 1;
+
+		res.writeHead( 206, {
+			'Content-Range': `bytes ${start}-${end}/${fileSize}`,
+			'Accept-Ranges': 'bytes',
+			'Content-Length': end - start + 1,
+			'Content-Type': contentType
+		} );
+
+		createReadStream( filePath, { start, end } ).pipe( res );
+
+	} else {
+
+		res.writeHead( 200, {
+			'Content-Length': fileSize,
+			'Content-Type': contentType
+		} );
+
+		createReadStream( filePath ).pipe( res );
+
+	}
+
+} );
+
+export default server;