server.js

/**
 * This file allow CORS for *.deadlock.io
 * from the CORS middleware
 * To generate the file you have to run Theia Docker-Java version from https://hub.docker.com/r/theiaide/theia-java
 * then you will find the content within /home/theia/src-gen/backend/server.js in the container
 */

// @ts-check
require('reflect-metadata');

// Patch electron version if missing, see https://github.com/eclipse-theia/theia/pull/7361#pullrequestreview-377065146
if (typeof process.versions.electron === 'undefined' && typeof process.env.THEIA_ELECTRON_VERSION === 'string') {
  process.versions.electron = process.env.THEIA_ELECTRON_VERSION;
}

const path = require('path');
const express = require('express');
const { Container } = require('inversify');
const { BackendApplication, CliManager } = require('@theia/core/lib/node');
const { backendApplicationModule } = require('@theia/core/lib/node/backend-application-module');
const { messagingBackendModule } = require('@theia/core/lib/node/messaging/messaging-backend-module');
const { loggerBackendModule } = require('@theia/core/lib/node/logger-backend-module');

const container = new Container();
container.load(backendApplicationModule);
container.load(messagingBackendModule);
container.load(loggerBackendModule);

//CORS middleware
const allowCrossDomain = function (req, res, next) {
  if (req.headers.origin && req.headers.origin.endsWith('.deadlock.io')) {
    res.setHeader('Access-Control-Allow-Origin', req.headers.origin);
    res.setHeader('Access-Control-Allow-Headers', 'X-Requested-With,Content-Type');
    res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, DELETE');
  }
  next();
};

function load(raw) {
  return Promise.resolve(raw.default).then((module) => container.load(module));
}

function start(port, host, argv) {
  if (argv === undefined) {
    argv = process.argv;
  }

  const cliManager = container.get(CliManager);
  return cliManager.initializeCli(argv).then(function () {
    const application = container.get(BackendApplication);
    application.use(allowCrossDomain);
    application.use(express.static(path.join(__dirname, '../../lib')));
    application.use(express.static(path.join(__dirname, '../../lib/index.html')));
    return application.start(port, host);
  });
}

module.exports = (port, host, argv) =>
  Promise.resolve()
    .then(function () {
      return Promise.resolve(require('@theia/core/lib/node/i18n/i18n-backend-module')).then(load);
    })
    .then(function () {
      return Promise.resolve(require('@theia/core/lib/node/hosting/backend-hosting-module')).then(load);
    })
    .then(function () {
      return Promise.resolve(require('@theia/filesystem/lib/node/filesystem-backend-module')).then(load);
    })
    .then(function () {
      return Promise.resolve(require('@theia/filesystem/lib/node/download/file-download-backend-module')).then(load);
    })
    .then(function () {
      return Promise.resolve(require('@theia/workspace/lib/node/workspace-backend-module')).then(load);
    })
    .then(function () {
      return Promise.resolve(require('@theia/process/lib/common/process-common-module')).then(load);
    })
    .then(function () {
      return Promise.resolve(require('@theia/process/lib/node/process-backend-module')).then(load);
    })
    .then(function () {
      return Promise.resolve(require('@theia/file-search/lib/node/file-search-backend-module')).then(load);
    })
    .then(function () {
      return Promise.resolve(require('@theia/git/lib/node/git-backend-module')).then(load);
    })
    .then(function () {
      return Promise.resolve(require('@theia/git/lib/node/env/git-env-module')).then(load);
    })
    .then(function () {
      return Promise.resolve(require('@theia/terminal/lib/node/terminal-backend-module')).then(load);
    })
    .then(function () {
      return Promise.resolve(require('@theia/task/lib/node/task-backend-module')).then(load);
    })
    .then(function () {
      return Promise.resolve(require('@theia/debug/lib/node/debug-backend-module')).then(load);
    })
    .then(function () {
      return Promise.resolve(require('@theia/search-in-workspace/lib/node/search-in-workspace-backend-module')).then(
        load,
      );
    })
    .then(function () {
      return Promise.resolve(require('@theia/plugin-ext/lib/plugin-ext-backend-module')).then(load);
    })
    .then(function () {
      return Promise.resolve(require('@theia/plugin-ext-vscode/lib/node/plugin-vscode-backend-module')).then(load);
    })
    .then(function () {
      return Promise.resolve(require('@theia/mini-browser/lib/node/mini-browser-backend-module')).then(load);
    })
    .then(function () {
      return Promise.resolve(require('@theia/vsx-registry/lib/node/vsx-registry-backend-module')).then(load);
    })
    .then(() => start(port, host, argv))
    .catch((reason) => {
      console.error('Failed to start the backend application.');
      if (reason) {
        console.error(reason);
      }
      throw reason;
    });