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#!/usr/bin/env node
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
// @ts-check
const http = require('http');
const url = require('url');
const fs = require('fs');
const path = require('path');
const util = require('util');
const opn = require('opn');
const minimist = require('minimist');
const fancyLog = require('fancy-log');
const ansiColors = require('ansi-colors');
const extensions = require('../../build/lib/extensions');
const APP_ROOT = path.join(__dirname, '..', '..');
const EXTENSIONS_ROOT = path.join(APP_ROOT, 'extensions');
const WEB_MAIN = path.join(APP_ROOT, 'src', 'vs', 'code', 'browser', 'workbench', 'workbench-dev.html');
const args = minimist(process.argv, {
boolean: [
'watch',
'no-launch',
'help'
],
string: [
'scheme',
'host',
'port',
'local_port'
],
});
if (args.help) {
console.log(
'yarn web [options]\n' +
' --watch Watch extensions that require browser specific builds\n' +
' --no-launch Do not open VSCode web in the browser\n' +
' --scheme Protocol (https or http)\n' +
' --host Remote host\n' +
' --port Remote/Local port\n' +
' --local_port Local port override\n' +
' --help\n' +
'[Example]\n' +
' yarn web --scheme https --host example.com --port 8080 --local_port 30000'
);
process.exit(0);
}
const PORT = args.port || process.env.PORT || 8080;
const LOCAL_PORT = args.local_port || process.env.LOCAL_PORT || PORT;
const SCHEME = args.scheme || process.env.VSCODE_SCHEME || 'http';
const HOST = args.host || 'localhost';
const AUTHORITY = process.env.VSCODE_AUTHORITY || `${HOST}:${PORT}`;
const exists = (path) => util.promisify(fs.exists)(path);
const readFile = (path) => util.promisify(fs.readFile)(path);
let unbuiltExensions = [];
async function initialize() {
const builtinExtensions = [];
const children = await util.promisify(fs.readdir)(EXTENSIONS_ROOT, { withFileTypes: true });
const folders = children.filter(c => !c.isFile());
await Promise.all(folders.map(async folder => {
const folderName = folder.name;
const extensionPath = path.join(EXTENSIONS_ROOT, folderName);
let children = [];
try {
children = await util.promisify(fs.readdir)(extensionPath);
} catch (error) {
console.log(error);
return;
}
const readme = children.filter(child => /^readme(\.txt|\.md|)$/i.test(child))[0];
const readmePath = readme ? path.join(extensionPath, readme) : undefined;
const changelog = children.filter(child => /^changelog(\.txt|\.md|)$/i.test(child))[0];
const changelogPath = changelog ? path.join(extensionPath, changelog) : undefined;
const packageJSONPath = path.join(EXTENSIONS_ROOT, folderName, 'package.json');
if (await exists(packageJSONPath)) {
try {
let packageJSON = JSON.parse((await readFile(packageJSONPath)).toString());
if (packageJSON.main && !packageJSON.browser) {
return; // unsupported
}
if (packageJSON.browser) {
packageJSON.main = packageJSON.browser;
let mainFilePath = path.join(EXTENSIONS_ROOT, folderName, packageJSON.browser);
if (path.extname(mainFilePath) !== '.js') {
mainFilePath += '.js';
}
if (!await exists(mainFilePath)) {
unbuiltExensions.push(path.relative(EXTENSIONS_ROOT, mainFilePath));
}
}
packageJSON.extensionKind = ['web']; // enable for Web
const packageNLSPath = path.join(folderName, 'package.nls.json');
const packageNLSExists = await exists(path.join(EXTENSIONS_ROOT, packageNLSPath));
if (packageNLSExists) {
packageJSON = extensions.translatePackageJSON(packageJSON, path.join(EXTENSIONS_ROOT, packageNLSPath)); // temporary, until fixed in core
}
builtinExtensions.push({
extensionPath: folderName,
packageJSON,
packageNLSPath: packageNLSExists ? packageNLSPath : undefined,
readmePath,
changelogPath
});
} catch (e) {
console.log(e);
}
}
}));
if (unbuiltExensions.length) {
fancyLog(`${ansiColors.yellow('Warning')}: Make sure to run ${ansiColors.cyan('yarn gulp watch-web')}\nCould not find the following browser main files: \n${unbuiltExensions.join('\n')}`);
}
return builtinExtensions;
}
const builtinExtensionsPromise = initialize();
const mapCallbackUriToRequestId = new Map();
const server = http.createServer((req, res) => {
const parsedUrl = url.parse(req.url, true);
const pathname = parsedUrl.pathname;
try {
if (pathname === '/favicon.ico') {
// favicon
return serveFile(req, res, path.join(APP_ROOT, 'resources', 'win32', 'code.ico'));
}
if (pathname === '/manifest.json') {
// manifest
res.writeHead(200, { 'Content-Type': 'application/json' });
return res.end(JSON.stringify({
'name': 'Code Web - OSS',
'short_name': 'Code Web - OSS',
'start_url': '/',
'lang': 'en-US',
'display': 'standalone'
}));
}
if (/^\/static\//.test(pathname)) {
// static requests
return handleStatic(req, res, parsedUrl);
}
if (/^\/static-extension\//.test(pathname)) {
// static extension requests
return handleStaticExtension(req, res, parsedUrl);
}
if (pathname === '/') {
// main web
return handleRoot(req, res);
} else if (pathname === '/callback') {
// callback support
return handleCallback(req, res, parsedUrl);
} else if (pathname === '/fetch-callback') {
// callback fetch support
return handleFetchCallback(req, res, parsedUrl);
}
return serveError(req, res, 404, 'Not found.');
} catch (error) {
console.error(error.toString());
return serveError(req, res, 500, 'Internal Server Error.');
}
});
server.listen(LOCAL_PORT, () => {
if (LOCAL_PORT !== PORT) {
console.log(`Operating location at http://0.0.0.0:${LOCAL_PORT}`);
}
console.log(`Web UI available at ${SCHEME}://${AUTHORITY}`);
});
server.on('error', err => {
console.error(`Error occurred in server:`);
console.error(err);
});
/**
* @param {import('http').IncomingMessage} req
* @param {import('http').ServerResponse} res
* @param {import('url').UrlWithParsedQuery} parsedUrl
*/
function handleStatic(req, res, parsedUrl) {
// Strip `/static/` from the path
const relativeFilePath = path.normalize(decodeURIComponent(parsedUrl.pathname.substr('/static/'.length)));
return serveFile(req, res, path.join(APP_ROOT, relativeFilePath));
}
/**
* @param {import('http').IncomingMessage} req
* @param {import('http').ServerResponse} res
* @param {import('url').UrlWithParsedQuery} parsedUrl
*/
function handleStaticExtension(req, res, parsedUrl) {
// Strip `/static-extension/` from the path
const relativeFilePath = path.normalize(decodeURIComponent(parsedUrl.pathname.substr('/static-extension/'.length)));
const filePath = path.join(EXTENSIONS_ROOT, relativeFilePath);
return serveFile(req, res, filePath);
}
/**
* @param {import('http').IncomingMessage} req
* @param {import('http').ServerResponse} res
*/
async function handleRoot(req, res) {
let folderUri = { scheme: 'memfs', path: `/sample-folder` };
const match = req.url && req.url.match(/\?([^#]+)/);
if (match) {
const qs = new URLSearchParams(match[1]);
let gh = qs.get('gh');
if (gh) {
if (gh.startsWith('/')) {
gh = gh.substr(1);
}
const [owner, repo, ...branch] = gh.split('/', 3);
folderUri = { scheme: 'github', authority: branch.join('/') || 'HEAD', path: `/${owner}/${repo}` };
} else {
let cs = qs.get('cs');
if (cs) {
if (cs.startsWith('/')) {
cs = cs.substr(1);
}
const [owner, repo, ...branch] = cs.split('/');
folderUri = { scheme: 'codespace', authority: branch.join('/') || 'HEAD', path: `/${owner}/${repo}` };
}
}
}
const builtinExtensions = await builtinExtensionsPromise;
const webConfigJSON = escapeAttribute(JSON.stringify({
folderUri: folderUri,
builtinExtensionsServiceUrl: `${SCHEME}://${AUTHORITY}/static-extension`
}));
const data = (await util.promisify(fs.readFile)(WEB_MAIN)).toString()
.replace('{{WORKBENCH_WEB_CONFIGURATION}}', () => webConfigJSON) // use a replace function to avoid that regexp replace patterns ($&, $0, ...) are applied
.replace('{{WORKBENCH_BUILTIN_EXTENSIONS}}', () => escapeAttribute(JSON.stringify(builtinExtensions)))
.replace('{{WEBVIEW_ENDPOINT}}', '')
.replace('{{REMOTE_USER_DATA_URI}}', '');
res.writeHead(200, { 'Content-Type': 'text/html' });
return res.end(data);
}
/**
* Handle HTTP requests for /callback
* @param {import('http').IncomingMessage} req
* @param {import('http').ServerResponse} res
* @param {import('url').UrlWithParsedQuery} parsedUrl
*/
async function handleCallback(req, res, parsedUrl) {
const wellKnownKeys = ['vscode-requestId', 'vscode-scheme', 'vscode-authority', 'vscode-path', 'vscode-query', 'vscode-fragment'];
const [requestId, vscodeScheme, vscodeAuthority, vscodePath, vscodeQuery, vscodeFragment] = wellKnownKeys.map(key => {
const value = getFirstQueryValue(parsedUrl, key);
if (value) {
return decodeURIComponent(value);
}
return value;
});
if (!requestId) {
res.writeHead(400, { 'Content-Type': 'text/plain' });
return res.end(`Bad request.`);
}
// merge over additional query values that we got
let query = vscodeQuery;
let index = 0;
getFirstQueryValues(parsedUrl, wellKnownKeys).forEach((value, key) => {
if (!query) {
query = '';
}
const prefix = (index++ === 0) ? '' : '&';
query += `${prefix}${key}=${value}`;
});
// add to map of known callbacks
mapCallbackUriToRequestId.set(requestId, JSON.stringify({ scheme: vscodeScheme || 'code-oss', authority: vscodeAuthority, path: vscodePath, query, fragment: vscodeFragment }));
return serveFile(req, res, path.join(APP_ROOT, 'resources', 'serverless', 'callback.html'), { 'Content-Type': 'text/html' });
}
/**
* Handle HTTP requests for /fetch-callback
* @param {import('http').IncomingMessage} req
* @param {import('http').ServerResponse} res
* @param {import('url').UrlWithParsedQuery} parsedUrl
*/
async function handleFetchCallback(req, res, parsedUrl) {
const requestId = getFirstQueryValue(parsedUrl, 'vscode-requestId');
if (!requestId) {
res.writeHead(400, { 'Content-Type': 'text/plain' });
return res.end(`Bad request.`);
}
const knownCallbackUri = mapCallbackUriToRequestId.get(requestId);
if (knownCallbackUri) {
mapCallbackUriToRequestId.delete(requestId);
}
res.writeHead(200, { 'Content-Type': 'text/json' });
return res.end(knownCallbackUri);
}
/**
* @param {import('url').UrlWithParsedQuery} parsedUrl
* @param {string} key
* @returns {string | undefined}
*/
function getFirstQueryValue(parsedUrl, key) {
const result = parsedUrl.query[key];
return Array.isArray(result) ? result[0] : result;
}
/**
* @param {import('url').UrlWithParsedQuery} parsedUrl
* @param {string[] | undefined} ignoreKeys
* @returns {Map<string, string>}
*/
function getFirstQueryValues(parsedUrl, ignoreKeys) {
const queryValues = new Map();
for (const key in parsedUrl.query) {
if (ignoreKeys && ignoreKeys.indexOf(key) >= 0) {
continue;
}
const value = getFirstQueryValue(parsedUrl, key);
if (typeof value === 'string') {
queryValues.set(key, value);
}
}
return queryValues;
}
/**
* @param {string} value
*/
function escapeAttribute(value) {
return value.replace(/"/g, '"');
}
/**
* @param {import('http').IncomingMessage} req
* @param {import('http').ServerResponse} res
* @param {string} errorMessage
*/
function serveError(req, res, errorCode, errorMessage) {
res.writeHead(errorCode, { 'Content-Type': 'text/plain' });
res.end(errorMessage);
}
const textMimeType = {
'.html': 'text/html',
'.js': 'text/javascript',
'.json': 'application/json',
'.css': 'text/css',
'.svg': 'image/svg+xml',
};
const mapExtToMediaMimes = {
'.bmp': 'image/bmp',
'.gif': 'image/gif',
'.ico': 'image/x-icon',
'.jpe': 'image/jpg',
'.jpeg': 'image/jpg',
'.jpg': 'image/jpg',
'.png': 'image/png',
'.tga': 'image/x-tga',
'.tif': 'image/tiff',
'.tiff': 'image/tiff',
'.woff': 'application/font-woff'
};
/**
* @param {string} forPath
*/
function getMediaMime(forPath) {
const ext = path.extname(forPath);
return mapExtToMediaMimes[ext.toLowerCase()];
}
/**
* @param {import('http').IncomingMessage} req
* @param {import('http').ServerResponse} res
* @param {string} filePath
*/
async function serveFile(req, res, filePath, responseHeaders = Object.create(null)) {
try {
// Sanity checks
filePath = path.normalize(filePath); // ensure no "." and ".."
if (filePath.indexOf(`${APP_ROOT}${path.sep}`) !== 0) {
// invalid location outside of APP_ROOT
return serveError(req, res, 400, `Bad request.`);
}
const stat = await util.promisify(fs.stat)(filePath);
// Check if file modified since
const etag = `W/"${[stat.ino, stat.size, stat.mtime.getTime()].join('-')}"`; // weak validator (https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/ETag)
if (req.headers['if-none-match'] === etag) {
res.writeHead(304);
return res.end();
}
// Headers
responseHeaders['Content-Type'] = textMimeType[path.extname(filePath)] || getMediaMime(filePath) || 'text/plain';
responseHeaders['Etag'] = etag;
res.writeHead(200, responseHeaders);
// Data
fs.createReadStream(filePath).pipe(res);
} catch (error) {
console.error(error.toString());
res.writeHead(404, { 'Content-Type': 'text/plain' });
return res.end('Not found');
}
}
if (args.launch !== false) {
opn(`${SCHEME}://${HOST}:${PORT}`);
}