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@@ -1,651 +0,0 @@
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-// Copyright 2014-2015 Google Inc. All rights reserved.
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-//
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-// Use of this source code is governed by a BSD-style
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-// license that can be found in the LICENSE file or at
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-// https://developers.google.com/open-source/licenses/bsd
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-
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-/**
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- * @fileoverview The U2F api.
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- */
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-
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-'use strict';
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-
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-/** Namespace for the U2F api.
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- * @type {Object}
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- */
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-var u2f = u2f || {};
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-
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-/**
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- * The U2F extension id
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- * @type {string}
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- * @const
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- */
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-u2f.EXTENSION_ID = 'kmendfapggjehodndflmmgagdbamhnfd';
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-
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-/**
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- * Message types for messsages to/from the extension
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- * @const
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- * @enum {string}
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- */
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-u2f.MessageTypes = {
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- 'U2F_REGISTER_REQUEST': 'u2f_register_request',
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- 'U2F_SIGN_REQUEST': 'u2f_sign_request',
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- 'U2F_REGISTER_RESPONSE': 'u2f_register_response',
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- 'U2F_SIGN_RESPONSE': 'u2f_sign_response'
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-};
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-
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-/**
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- * Response status codes
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- * @const
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- * @enum {number}
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- */
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-u2f.ErrorCodes = {
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- 'OK': 0,
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- 'OTHER_ERROR': 1,
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- 'BAD_REQUEST': 2,
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- 'CONFIGURATION_UNSUPPORTED': 3,
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- 'DEVICE_INELIGIBLE': 4,
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- 'TIMEOUT': 5
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-};
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-
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-/**
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- * A message type for registration requests
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- * @typedef {{
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- * type: u2f.MessageTypes,
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- * signRequests: Array<u2f.SignRequest>,
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- * registerRequests: ?Array<u2f.RegisterRequest>,
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- * timeoutSeconds: ?number,
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- * requestId: ?number
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- * }}
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- */
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-u2f.Request;
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-
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-/**
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- * A message for registration responses
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- * @typedef {{
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- * type: u2f.MessageTypes,
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- * responseData: (u2f.Error | u2f.RegisterResponse | u2f.SignResponse),
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- * requestId: ?number
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- * }}
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- */
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-u2f.Response;
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-
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-/**
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- * An error object for responses
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- * @typedef {{
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- * errorCode: u2f.ErrorCodes,
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- * errorMessage: ?string
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- * }}
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- */
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-u2f.Error;
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-
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-/**
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- * Data object for a single sign request.
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- * @typedef {{
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- * version: string,
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- * challenge: string,
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- * keyHandle: string,
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- * appId: string
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- * }}
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- */
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-u2f.SignRequest;
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-
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-/**
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- * Data object for a sign response.
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- * @typedef {{
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- * keyHandle: string,
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- * signatureData: string,
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- * clientData: string
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- * }}
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- */
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-u2f.SignResponse;
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-
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-/**
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- * Data object for a registration request.
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- * @typedef {{
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- * version: string,
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- * challenge: string,
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- * appId: string
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- * }}
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- */
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-u2f.RegisterRequest;
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-
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-/**
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- * Data object for a registration response.
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- * @typedef {{
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- * registrationData: string,
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- * clientData: string
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- * }}
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- */
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-u2f.RegisterResponse;
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-
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-
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-// Low level MessagePort API support
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-
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-/**
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- * Sets up a MessagePort to the U2F extension using the
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- * available mechanisms.
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- * @param {function((MessagePort|u2f.WrappedChromeRuntimePort_))} callback
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- */
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-u2f.getMessagePort = function(callback) {
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- if (typeof chrome != 'undefined' && chrome.runtime) {
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- // The actual message here does not matter, but we need to get a reply
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- // for the callback to run. Thus, send an empty signature request
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- // in order to get a failure response.
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- var msg = {
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- type: u2f.MessageTypes.U2F_SIGN_REQUEST,
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- signRequests: []
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- };
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- chrome.runtime.sendMessage(u2f.EXTENSION_ID, msg, function() {
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- if (!chrome.runtime.lastError) {
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- // We are on a whitelisted origin and can talk directly
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- // with the extension.
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- u2f.getChromeRuntimePort_(callback);
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- } else {
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- // chrome.runtime was available, but we couldn't message
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- // the extension directly, use iframe
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- u2f.getIframePort_(callback);
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- }
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- });
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- } else if (u2f.isAndroidChrome_()) {
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- u2f.getAuthenticatorPort_(callback);
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- } else {
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- // chrome.runtime was not available at all, which is normal
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- // when this origin doesn't have access to any extensions.
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- u2f.getIframePort_(callback);
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- }
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-};
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-
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-/**
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- * Detect chrome running on android based on the browser's useragent.
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- * @private
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- */
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-u2f.isAndroidChrome_ = function() {
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- var userAgent = navigator.userAgent;
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- return userAgent.indexOf('Chrome') != -1 &&
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- userAgent.indexOf('Android') != -1;
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-};
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-
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-/**
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- * Connects directly to the extension via chrome.runtime.connect
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- * @param {function(u2f.WrappedChromeRuntimePort_)} callback
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- * @private
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- */
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-u2f.getChromeRuntimePort_ = function(callback) {
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- var port = chrome.runtime.connect(u2f.EXTENSION_ID,
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- {'includeTlsChannelId': true});
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- setTimeout(function() {
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- callback(new u2f.WrappedChromeRuntimePort_(port));
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- }, 0);
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-};
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-
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-/**
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- * Return a 'port' abstraction to the Authenticator app.
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- * @param {function(u2f.WrappedAuthenticatorPort_)} callback
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- * @private
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- */
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-u2f.getAuthenticatorPort_ = function(callback) {
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- setTimeout(function() {
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- callback(new u2f.WrappedAuthenticatorPort_());
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- }, 0);
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-};
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-
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-/**
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- * A wrapper for chrome.runtime.Port that is compatible with MessagePort.
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- * @param {Port} port
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- * @constructor
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- * @private
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- */
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-u2f.WrappedChromeRuntimePort_ = function(port) {
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- this.port_ = port;
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-};
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-
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-/**
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- * Format a return a sign request.
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- * @param {Array<u2f.SignRequest>} signRequests
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- * @param {number} timeoutSeconds
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- * @param {number} reqId
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- * @return {Object}
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- */
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-u2f.WrappedChromeRuntimePort_.prototype.formatSignRequest_ =
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- function(signRequests, timeoutSeconds, reqId) {
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- return {
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- type: u2f.MessageTypes.U2F_SIGN_REQUEST,
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- signRequests: signRequests,
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- timeoutSeconds: timeoutSeconds,
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- requestId: reqId
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- };
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- };
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-
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-/**
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- * Format a return a register request.
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- * @param {Array<u2f.SignRequest>} signRequests
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- * @param {Array<u2f.RegisterRequest>} signRequests
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- * @param {number} timeoutSeconds
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- * @param {number} reqId
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- * @return {Object}
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- */
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-u2f.WrappedChromeRuntimePort_.prototype.formatRegisterRequest_ =
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- function(signRequests, registerRequests, timeoutSeconds, reqId) {
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- return {
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- type: u2f.MessageTypes.U2F_REGISTER_REQUEST,
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- signRequests: signRequests,
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- registerRequests: registerRequests,
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- timeoutSeconds: timeoutSeconds,
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- requestId: reqId
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- };
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- };
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-
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-/**
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- * Posts a message on the underlying channel.
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- * @param {Object} message
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- */
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-u2f.WrappedChromeRuntimePort_.prototype.postMessage = function(message) {
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- this.port_.postMessage(message);
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-};
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-
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-/**
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- * Emulates the HTML 5 addEventListener interface. Works only for the
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- * onmessage event, which is hooked up to the chrome.runtime.Port.onMessage.
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- * @param {string} eventName
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- * @param {function({data: Object})} handler
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- */
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-u2f.WrappedChromeRuntimePort_.prototype.addEventListener =
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- function(eventName, handler) {
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- var name = eventName.toLowerCase();
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- if (name == 'message' || name == 'onmessage') {
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- this.port_.onMessage.addListener(function(message) {
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- // Emulate a minimal MessageEvent object
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- handler({'data': message});
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- });
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- } else {
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- console.error('WrappedChromeRuntimePort only supports onMessage');
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- }
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- };
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-
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-/**
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- * Wrap the Authenticator app with a MessagePort interface.
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- * @constructor
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- * @private
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- */
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-u2f.WrappedAuthenticatorPort_ = function() {
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- this.requestId_ = -1;
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- this.requestObject_ = null;
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-}
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-
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-/**
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- * Launch the Authenticator intent.
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- * @param {Object} message
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- */
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-u2f.WrappedAuthenticatorPort_.prototype.postMessage = function(message) {
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- var intentLocation = /** @type {string} */ (message);
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- document.location = intentLocation;
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-};
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-
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-/**
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- * Emulates the HTML 5 addEventListener interface.
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- * @param {string} eventName
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- * @param {function({data: Object})} handler
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- */
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-u2f.WrappedAuthenticatorPort_.prototype.addEventListener =
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- function(eventName, handler) {
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- var name = eventName.toLowerCase();
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- if (name == 'message') {
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- var self = this;
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- /* Register a callback to that executes when
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- * chrome injects the response. */
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- window.addEventListener(
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- 'message', self.onRequestUpdate_.bind(self, handler), false);
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- } else {
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- console.error('WrappedAuthenticatorPort only supports message');
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- }
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- };
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-
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-/**
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- * Callback invoked when a response is received from the Authenticator.
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- * @param function({data: Object}) callback
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- * @param {Object} message message Object
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- */
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-u2f.WrappedAuthenticatorPort_.prototype.onRequestUpdate_ =
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- function(callback, message) {
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- var messageObject = JSON.parse(message.data);
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- var intentUrl = messageObject['intentURL'];
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-
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- var errorCode = messageObject['errorCode'];
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- var responseObject = null;
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- if (messageObject.hasOwnProperty('data')) {
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- responseObject = /** @type {Object} */ (
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- JSON.parse(messageObject['data']));
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- responseObject['requestId'] = this.requestId_;
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- }
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-
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- /* Sign responses from the authenticator do not conform to U2F,
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- * convert to U2F here. */
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- responseObject = this.doResponseFixups_(responseObject);
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- callback({'data': responseObject});
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- };
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-
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-/**
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- * Fixup the response provided by the Authenticator to conform with
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- * the U2F spec.
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- * @param {Object} responseData
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- * @return {Object} the U2F compliant response object
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- */
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-u2f.WrappedAuthenticatorPort_.prototype.doResponseFixups_ =
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- function(responseObject) {
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- if (responseObject.hasOwnProperty('responseData')) {
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- return responseObject;
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- } else if (this.requestObject_['type'] != u2f.MessageTypes.U2F_SIGN_REQUEST) {
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- // Only sign responses require fixups. If this is not a response
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- // to a sign request, then an internal error has occurred.
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- return {
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- 'type': u2f.MessageTypes.U2F_REGISTER_RESPONSE,
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- 'responseData': {
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- 'errorCode': u2f.ErrorCodes.OTHER_ERROR,
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- 'errorMessage': 'Internal error: invalid response from Authenticator'
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- }
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- };
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- }
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-
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- /* Non-conformant sign response, do fixups. */
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- var encodedChallengeObject = responseObject['challenge'];
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- if (typeof encodedChallengeObject !== 'undefined') {
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- var challengeObject = JSON.parse(atob(encodedChallengeObject));
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- var serverChallenge = challengeObject['challenge'];
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- var challengesList = this.requestObject_['signData'];
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- var requestChallengeObject = null;
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- for (var i = 0; i < challengesList.length; i++) {
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- var challengeObject = challengesList[i];
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- if (challengeObject['keyHandle'] == responseObject['keyHandle']) {
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- requestChallengeObject = challengeObject;
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- break;
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- }
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- }
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- }
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- var responseData = {
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- 'errorCode': responseObject['resultCode'],
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- 'keyHandle': responseObject['keyHandle'],
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- 'signatureData': responseObject['signature'],
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- 'clientData': encodedChallengeObject
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- };
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- return {
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- 'type': u2f.MessageTypes.U2F_SIGN_RESPONSE,
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- 'responseData': responseData,
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- 'requestId': responseObject['requestId']
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- }
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- };
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-
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-/**
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- * Base URL for intents to Authenticator.
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- * @const
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- * @private
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- */
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-u2f.WrappedAuthenticatorPort_.INTENT_URL_BASE_ =
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- 'intent:#Intent;action=com.google.android.apps.authenticator.AUTHENTICATE';
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-
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-/**
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- * Format a return a sign request.
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- * @param {Array<u2f.SignRequest>} signRequests
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- * @param {number} timeoutSeconds (ignored for now)
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- * @param {number} reqId
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- * @return {string}
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- */
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-u2f.WrappedAuthenticatorPort_.prototype.formatSignRequest_ =
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- function(signRequests, timeoutSeconds, reqId) {
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- if (!signRequests || signRequests.length == 0) {
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- return null;
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- }
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- /* TODO(fixme): stash away requestId, as the authenticator app does
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- * not return it for sign responses. */
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- this.requestId_ = reqId;
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- /* TODO(fixme): stash away the signRequests, to deal with the legacy
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- * response format returned by the Authenticator app. */
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- this.requestObject_ = {
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- 'type': u2f.MessageTypes.U2F_SIGN_REQUEST,
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- 'signData': signRequests,
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- 'requestId': reqId,
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- 'timeout': timeoutSeconds
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- };
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-
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- var appId = signRequests[0]['appId'];
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- var intentUrl =
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- u2f.WrappedAuthenticatorPort_.INTENT_URL_BASE_ +
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- ';S.appId=' + encodeURIComponent(appId) +
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- ';S.eventId=' + reqId +
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- ';S.challenges=' +
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- encodeURIComponent(
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- JSON.stringify(this.getBrowserDataList_(signRequests))) + ';end';
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- return intentUrl;
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- };
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-
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-/**
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- * Get the browser data objects from the challenge list
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- * @param {Array} challenges list of challenges
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- * @return {Array} list of browser data objects
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- * @private
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- */
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-u2f.WrappedAuthenticatorPort_
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- .prototype.getBrowserDataList_ = function(challenges) {
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- return challenges
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- .map(function(challenge) {
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- var browserData = {
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- 'typ': 'navigator.id.getAssertion',
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- 'challenge': challenge['challenge']
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- };
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- var challengeObject = {
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- 'challenge' : browserData,
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- 'keyHandle' : challenge['keyHandle']
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- };
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- return challengeObject;
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- });
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-};
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-
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-/**
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- * Format a return a register request.
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- * @param {Array<u2f.SignRequest>} signRequests
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- * @param {Array<u2f.RegisterRequest>} enrollChallenges
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- * @param {number} timeoutSeconds (ignored for now)
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- * @param {number} reqId
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- * @return {Object}
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- */
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-u2f.WrappedAuthenticatorPort_.prototype.formatRegisterRequest_ =
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- function(signRequests, enrollChallenges, timeoutSeconds, reqId) {
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- if (!enrollChallenges || enrollChallenges.length == 0) {
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- return null;
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- }
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- // Assume the appId is the same for all enroll challenges.
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- var appId = enrollChallenges[0]['appId'];
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- var registerRequests = [];
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- for (var i = 0; i < enrollChallenges.length; i++) {
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- var registerRequest = {
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- 'challenge': enrollChallenges[i]['challenge'],
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- 'version': enrollChallenges[i]['version']
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- };
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- if (enrollChallenges[i]['appId'] != appId) {
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- // Only include the appId when it differs from the first appId.
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- registerRequest['appId'] = enrollChallenges[i]['appId'];
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- }
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- registerRequests.push(registerRequest);
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- }
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- var registeredKeys = [];
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- if (signRequests) {
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- for (i = 0; i < signRequests.length; i++) {
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- var key = {
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- 'keyHandle': signRequests[i]['keyHandle'],
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- 'version': signRequests[i]['version']
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- };
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- // Only include the appId when it differs from the appId that's
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- // being registered now.
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- if (signRequests[i]['appId'] != appId) {
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- key['appId'] = signRequests[i]['appId'];
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- }
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- registeredKeys.push(key);
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- }
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- }
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- var request = {
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- 'type': u2f.MessageTypes.U2F_REGISTER_REQUEST,
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- 'appId': appId,
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- 'registerRequests': registerRequests,
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- 'registeredKeys': registeredKeys,
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- 'requestId': reqId,
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- 'timeoutSeconds': timeoutSeconds
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- };
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- var intentUrl =
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- u2f.WrappedAuthenticatorPort_.INTENT_URL_BASE_ +
|
|
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- ';S.request=' + encodeURIComponent(JSON.stringify(request)) +
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|
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- ';end';
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- /* TODO(fixme): stash away requestId, this is is not necessary for
|
|
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- * register requests, but here to keep parity with sign.
|
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- */
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- this.requestId_ = reqId;
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- return intentUrl;
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|
|
- };
|
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-
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-
|
|
|
-/**
|
|
|
- * Sets up an embedded trampoline iframe, sourced from the extension.
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|
- * @param {function(MessagePort)} callback
|
|
|
- * @private
|
|
|
- */
|
|
|
-u2f.getIframePort_ = function(callback) {
|
|
|
- // Create the iframe
|
|
|
- var iframeOrigin = 'chrome-extension://' + u2f.EXTENSION_ID;
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|
|
- var iframe = document.createElement('iframe');
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|
|
- iframe.src = iframeOrigin + '/u2f-comms.html';
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|
|
- iframe.setAttribute('style', 'display:none');
|
|
|
- document.body.appendChild(iframe);
|
|
|
-
|
|
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- var channel = new MessageChannel();
|
|
|
- var ready = function(message) {
|
|
|
- if (message.data == 'ready') {
|
|
|
- channel.port1.removeEventListener('message', ready);
|
|
|
- callback(channel.port1);
|
|
|
- } else {
|
|
|
- console.error('First event on iframe port was not "ready"');
|
|
|
- }
|
|
|
- };
|
|
|
- channel.port1.addEventListener('message', ready);
|
|
|
- channel.port1.start();
|
|
|
-
|
|
|
- iframe.addEventListener('load', function() {
|
|
|
- // Deliver the port to the iframe and initialize
|
|
|
- iframe.contentWindow.postMessage('init', iframeOrigin, [channel.port2]);
|
|
|
- });
|
|
|
-};
|
|
|
-
|
|
|
-
|
|
|
-// High-level JS API
|
|
|
-
|
|
|
-/**
|
|
|
- * Default extension response timeout in seconds.
|
|
|
- * @const
|
|
|
- */
|
|
|
-u2f.EXTENSION_TIMEOUT_SEC = 30;
|
|
|
-
|
|
|
-/**
|
|
|
- * A singleton instance for a MessagePort to the extension.
|
|
|
- * @type {MessagePort|u2f.WrappedChromeRuntimePort_}
|
|
|
- * @private
|
|
|
- */
|
|
|
-u2f.port_ = null;
|
|
|
-
|
|
|
-/**
|
|
|
- * Callbacks waiting for a port
|
|
|
- * @type {Array<function((MessagePort|u2f.WrappedChromeRuntimePort_))>}
|
|
|
- * @private
|
|
|
- */
|
|
|
-u2f.waitingForPort_ = [];
|
|
|
-
|
|
|
-/**
|
|
|
- * A counter for requestIds.
|
|
|
- * @type {number}
|
|
|
- * @private
|
|
|
- */
|
|
|
-u2f.reqCounter_ = 0;
|
|
|
-
|
|
|
-/**
|
|
|
- * A map from requestIds to client callbacks
|
|
|
- * @type {Object.<number,(function((u2f.Error|u2f.RegisterResponse))
|
|
|
- * |function((u2f.Error|u2f.SignResponse)))>}
|
|
|
- * @private
|
|
|
- */
|
|
|
-u2f.callbackMap_ = {};
|
|
|
-
|
|
|
-/**
|
|
|
- * Creates or retrieves the MessagePort singleton to use.
|
|
|
- * @param {function((MessagePort|u2f.WrappedChromeRuntimePort_))} callback
|
|
|
- * @private
|
|
|
- */
|
|
|
-u2f.getPortSingleton_ = function(callback) {
|
|
|
- if (u2f.port_) {
|
|
|
- callback(u2f.port_);
|
|
|
- } else {
|
|
|
- if (u2f.waitingForPort_.length == 0) {
|
|
|
- u2f.getMessagePort(function(port) {
|
|
|
- u2f.port_ = port;
|
|
|
- u2f.port_.addEventListener('message',
|
|
|
- /** @type {function(Event)} */ (u2f.responseHandler_));
|
|
|
-
|
|
|
- // Careful, here be async callbacks. Maybe.
|
|
|
- while (u2f.waitingForPort_.length)
|
|
|
- u2f.waitingForPort_.shift()(u2f.port_);
|
|
|
- });
|
|
|
- }
|
|
|
- u2f.waitingForPort_.push(callback);
|
|
|
- }
|
|
|
-};
|
|
|
-
|
|
|
-/**
|
|
|
- * Handles response messages from the extension.
|
|
|
- * @param {MessageEvent.<u2f.Response>} message
|
|
|
- * @private
|
|
|
- */
|
|
|
-u2f.responseHandler_ = function(message) {
|
|
|
- var response = message.data;
|
|
|
- var reqId = response['requestId'];
|
|
|
- if (!reqId || !u2f.callbackMap_[reqId]) {
|
|
|
- console.error('Unknown or missing requestId in response.');
|
|
|
- return;
|
|
|
- }
|
|
|
- var cb = u2f.callbackMap_[reqId];
|
|
|
- delete u2f.callbackMap_[reqId];
|
|
|
- cb(response['responseData']);
|
|
|
-};
|
|
|
-
|
|
|
-/**
|
|
|
- * Dispatches an array of sign requests to available U2F tokens.
|
|
|
- * @param {Array<u2f.SignRequest>} signRequests
|
|
|
- * @param {function((u2f.Error|u2f.SignResponse))} callback
|
|
|
- * @param {number=} opt_timeoutSeconds
|
|
|
- */
|
|
|
-u2f.sign = function(signRequests, callback, opt_timeoutSeconds) {
|
|
|
- u2f.getPortSingleton_(function(port) {
|
|
|
- var reqId = ++u2f.reqCounter_;
|
|
|
- u2f.callbackMap_[reqId] = callback;
|
|
|
- var timeoutSeconds = (typeof opt_timeoutSeconds !== 'undefined' ?
|
|
|
- opt_timeoutSeconds : u2f.EXTENSION_TIMEOUT_SEC);
|
|
|
- var req = port.formatSignRequest_(signRequests, timeoutSeconds, reqId);
|
|
|
- port.postMessage(req);
|
|
|
- });
|
|
|
-};
|
|
|
-
|
|
|
-/**
|
|
|
- * Dispatches register requests to available U2F tokens. An array of sign
|
|
|
- * requests identifies already registered tokens.
|
|
|
- * @param {Array<u2f.RegisterRequest>} registerRequests
|
|
|
- * @param {Array<u2f.SignRequest>} signRequests
|
|
|
- * @param {function((u2f.Error|u2f.RegisterResponse))} callback
|
|
|
- * @param {number=} opt_timeoutSeconds
|
|
|
- */
|
|
|
-u2f.register = function(registerRequests, signRequests,
|
|
|
- callback, opt_timeoutSeconds) {
|
|
|
- u2f.getPortSingleton_(function(port) {
|
|
|
- var reqId = ++u2f.reqCounter_;
|
|
|
- u2f.callbackMap_[reqId] = callback;
|
|
|
- var timeoutSeconds = (typeof opt_timeoutSeconds !== 'undefined' ?
|
|
|
- opt_timeoutSeconds : u2f.EXTENSION_TIMEOUT_SEC);
|
|
|
- var req = port.formatRegisterRequest_(
|
|
|
- signRequests, registerRequests, timeoutSeconds, reqId);
|
|
|
- port.postMessage(req);
|
|
|
- });
|
|
|
-};
|
FreddleSpl0it