[Webapp Refactor] Implements remoting.Activity.

remoting/webapp/crd/js/it2me_connect_flow.js

-// Copyright 2015 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.
-
-/** @suppress {duplicate} */
-var remoting = remoting || {};
-
-(function() {
-
-'use strict';
-
-// Length of the various components of the access code in number of digits.
-var SUPPORT_ID_LENGTH = 7;
-var HOST_SECRET_LENGTH = 5;
-var ACCESS_CODE_LENGTH = SUPPORT_ID_LENGTH + HOST_SECRET_LENGTH;
-
-/**
- * @param {remoting.SessionConnector} sessionConnector
- * @constructor
- */
-remoting.It2MeConnectFlow = function(sessionConnector) {
-  /** @private */
-  this.sessionConnector_ = sessionConnector;
-  /** @private */
-  this.hostId_ = '';
-  /** @private */
-  this.passCode_ = '';
-
-  var form = document.getElementById('access-code-form');
-  /** @private */
-  this.accessCodeDialog_ = new remoting.InputDialog(
-    remoting.AppMode.CLIENT_UNCONNECTED,
-    form,
-    form.querySelector('#access-code-entry'),
-    form.querySelector('#cancel-access-code-button'));
-};
-
-
-remoting.It2MeConnectFlow.prototype.start = function() {
-  var that = this;
-
-  this.accessCodeDialog_.show().then(function(/** string */ accessCode) {
-    remoting.setMode(remoting.AppMode.CLIENT_CONNECTING);
-    return that.verifyAccessCode_(accessCode);
-  }).then(function() {
-    return remoting.identity.getToken();
-  }).then(function(/** string */ token) {
-    return that.getHostInfo_(token);
-  }).then(function(/** !remoting.Xhr.Response */ response) {
-    return that.onHostInfo_(response);
-  }).then(function(/** remoting.Host */ host) {
-    that.sessionConnector_.connect(
-        remoting.Application.Mode.IT2ME,
-        host,
-        new remoting.CredentialsProvider({ accessCode: that.passCode_ }));
-  }).catch(function(/** remoting.Error */ error) {
-    if (error.hasTag(remoting.Error.Tag.CANCELLED)) {
-      remoting.setMode(remoting.AppMode.HOME);
-    } else {
-      var errorDiv = document.getElementById('connect-error-message');
-      l10n.localizeElementFromTag(errorDiv, error.getTag());
-      remoting.setMode(remoting.AppMode.CLIENT_CONNECT_FAILED_IT2ME);
-    }
-  });
-};
-
-/**
- * @param {string} accessCode
- * @return {Promise}  Promise that resolves if the access code is valid.
- * @private
- */
-remoting.It2MeConnectFlow.prototype.verifyAccessCode_ = function(accessCode) {
-  var normalizedAccessCode = accessCode.replace(/\s/g, '');
-  if (normalizedAccessCode.length !== ACCESS_CODE_LENGTH) {
-    return Promise.reject(new remoting.Error(
-        remoting.Error.Tag.INVALID_ACCESS_CODE));
-  }
-
-  this.hostId_ = normalizedAccessCode.substring(0, SUPPORT_ID_LENGTH);
-  this.passCode_ = normalizedAccessCode;
-
-  return Promise.resolve();
-};
-
-/**
- * Continues an IT2Me connection once an access token has been obtained.
- *
- * @param {string} token An OAuth2 access token.
- * @return {Promise<!remoting.Xhr.Response>}
- * @private
- */
-remoting.It2MeConnectFlow.prototype.getHostInfo_ = function(token) {
-  var that = this;
-  return new remoting.Xhr({
-    method: 'GET',
-    url: remoting.settings.DIRECTORY_API_BASE_URL + '/support-hosts/' +
-        encodeURIComponent(that.hostId_),
-    oauthToken: token
-  }).start();
-};
-
-/**
- * Continues an IT2Me connection once the host JID has been looked up.
- *
- * @param {!remoting.Xhr.Response} xhrResponse The server response to the
- *     support-hosts query.
- * @return {!Promise<!remoting.Host>} Rejects on error.
- * @private
- */
-remoting.It2MeConnectFlow.prototype.onHostInfo_ = function(xhrResponse) {
-  if (xhrResponse.status == 200) {
-    var response = /** @type {{data: {jabberId: string, publicKey: string}}} */
-        (base.jsonParseSafe(xhrResponse.getText()));
-    if (response && response.data &&
-        response.data.jabberId && response.data.publicKey) {
-      var host = new remoting.Host(this.hostId_);
-      host.jabberId = response.data.jabberId;
-      host.publicKey = response.data.publicKey;
-      host.hostName = response.data.jabberId.split('/')[0];
-      return Promise.resolve(host);
-    } else {
-      console.error('Invalid "support-hosts" response from server.');
-      return Promise.reject(remoting.Error.unexpected());
-    }
-  } else {
-    return Promise.reject(translateSupportHostsError(xhrResponse.status));
-  }
-};
-
-/**
- * TODO(jrw): Replace with remoting.Error.fromHttpStatus.
- * @param {number} error An HTTP error code returned by the support-hosts
- *     endpoint.
- * @return {remoting.Error} The equivalent remoting.Error code.
- */
-function translateSupportHostsError(error) {
-  switch (error) {
-    case 0: return new remoting.Error(remoting.Error.Tag.NETWORK_FAILURE);
-    case 404: return new remoting.Error(remoting.Error.Tag.INVALID_ACCESS_CODE);
-    case 502: // No break
-    case 503: return new remoting.Error(remoting.Error.Tag.SERVICE_UNAVAILABLE);
-    default: return remoting.Error.unexpected();
-  }
-}
-
-})();