| // Copyright (c) 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| const fs = require('fs'); |
| const http = require('http'); |
| const path = require('path'); |
| const parseURL = require('url').parse; |
| |
| const remoteDebuggingPort = parseInt(process.env.REMOTE_DEBUGGING_PORT, 10) || 9222; |
| const serverPort = parseInt(process.env.PORT, 10) || 8090; |
| const devtoolsFolder = path.resolve(path.join(__dirname, '..', '..')); |
| |
| http.createServer(requestHandler).listen(serverPort); |
| console.log(`Started hosted mode server at http://localhost:${serverPort}\n`); |
| console.log('For info on using the hosted mode server, see our contributing docs:'); |
| console.log('https://bit.ly/devtools-contribution-guide'); |
| console.log('Tip: Look for the \'Development server options\' section\n'); |
| |
| function requestHandler(request, response) { |
| const filePath = parseURL(request.url).pathname; |
| if (filePath === '/') { |
| const landingURL = `http://localhost:${remoteDebuggingPort}#custom=true`; |
| sendResponse(200, `<html>Please go to <a href="${landingURL}">${landingURL}</a></html>`); |
| return; |
| } |
| |
| const absoluteFilePath = path.join(devtoolsFolder, filePath); |
| if (!path.resolve(absoluteFilePath).startsWith(devtoolsFolder)) { |
| console.log(`File requested (${absoluteFilePath}) is outside of devtools folder: ${devtoolsFolder}`); |
| sendResponse(403, `403 - Access denied. File requested is outside of devtools folder: ${devtoolsFolder}`); |
| return; |
| } |
| |
| fs.exists(absoluteFilePath, fsExistsCallback); |
| |
| function fsExistsCallback(fileExists) { |
| if (!fileExists) { |
| console.log(`Cannot find file ${absoluteFilePath}`); |
| sendResponse(404, '404 - File not found'); |
| return; |
| } |
| |
| let encoding = 'utf8'; |
| if (absoluteFilePath.endsWith('.wasm') || absoluteFilePath.endsWith('.png') || absoluteFilePath.endsWith('.jpg')) { |
| encoding = 'binary'; |
| } |
| |
| fs.readFile(absoluteFilePath, encoding, readFileCallback); |
| } |
| |
| function readFileCallback(err, file) { |
| if (err) { |
| console.log(`Unable to read local file ${absoluteFilePath}:`, err); |
| sendResponse(500, '500 - Internal Server Error'); |
| return; |
| } |
| sendResponse(200, file); |
| } |
| |
| function sendResponse(statusCode, data) { |
| const path = parseURL(request.url).pathname; |
| |
| if (path.endsWith('.rawresponse')) { |
| sendRawResponse(data); |
| return; |
| } |
| |
| let encoding = 'utf8'; |
| if (path.endsWith('.js') || path.endsWith('.mjs')) { |
| response.setHeader('Content-Type', 'text/javascript; charset=utf-8'); |
| } else if (path.endsWith('.css')) { |
| response.setHeader('Content-Type', 'text/css; charset=utf-8'); |
| } else if (path.endsWith('.wasm')) { |
| response.setHeader('Content-Type', 'application/wasm'); |
| encoding = 'binary'; |
| } else if (path.endsWith('.svg')) { |
| response.setHeader('Content-Type', 'image/svg+xml; charset=utf-8'); |
| } else if (path.endsWith('.png')) { |
| response.setHeader('Content-Type', 'image/png'); |
| encoding = 'binary'; |
| } else if (path.endsWith('.jpg')) { |
| response.setHeader('Content-Type', 'image/jpg'); |
| encoding = 'binary'; |
| } |
| |
| response.writeHead(statusCode); |
| response.write(data, encoding); |
| response.end(); |
| } |
| |
| function sendRawResponse(data) { |
| const lines = data.split('\n'); |
| |
| let isHeader = true; |
| let line = lines.shift(); |
| const statusCode = parseInt(line, 10); |
| |
| while ((line = lines.shift()) !== undefined) { |
| if (line.trim() === '') { |
| isHeader = false; |
| if (request.headers['if-none-match'] && response.getHeader('ETag') === request.headers['if-none-match']) { |
| response.writeHead(304); |
| response.end(); |
| return; |
| } |
| response.writeHead(statusCode); |
| continue; |
| } |
| |
| if (isHeader) { |
| const firstColon = line.indexOf(':'); |
| response.setHeader(line.substring(0, firstColon), line.substring(firstColon + 1).trim()); |
| } else { |
| response.write(line); |
| } |
| } |
| |
| response.end(); |
| } |
| } |
