1 | //Copyright 2014-2015 Google Inc. All rights reserved. |
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2 | |||
3 | //Use of this source code is governed by a BSD-style |
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4 | //license that can be found in the LICENSE file or at |
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5 | //https://developers.google.com/open-source/licenses/bsd |
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6 | |||
7 | /** |
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8 | * @fileoverview The U2F api. |
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9 | */ |
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10 | 'use strict'; |
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11 | |||
12 | |||
13 | /** |
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14 | * Namespace for the U2F api. |
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15 | * @type {Object} |
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16 | */ |
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17 | var u2f = u2f || {}; |
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18 | |||
19 | /** |
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20 | * FIDO U2F Javascript API Version |
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21 | * @number |
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22 | */ |
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23 | var js_api_version; |
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24 | |||
25 | /** |
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26 | * The U2F extension id |
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27 | * @const {string} |
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28 | */ |
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29 | // The Chrome packaged app extension ID. |
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30 | // Uncomment this if you want to deploy a server instance that uses |
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31 | // the package Chrome app and does not require installing the U2F Chrome extension. |
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32 | u2f.EXTENSION_ID = 'kmendfapggjehodndflmmgagdbamhnfd'; |
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33 | // The U2F Chrome extension ID. |
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34 | // Uncomment this if you want to deploy a server instance that uses |
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35 | // the U2F Chrome extension to authenticate. |
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36 | // u2f.EXTENSION_ID = 'pfboblefjcgdjicmnffhdgionmgcdmne'; |
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37 | |||
38 | |||
39 | /** |
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40 | * Message types for messsages to/from the extension |
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41 | * @const |
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42 | * @enum {string} |
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43 | */ |
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44 | u2f.MessageTypes = { |
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45 | 'U2F_REGISTER_REQUEST': 'u2f_register_request', |
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46 | 'U2F_REGISTER_RESPONSE': 'u2f_register_response', |
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47 | 'U2F_SIGN_REQUEST': 'u2f_sign_request', |
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48 | 'U2F_SIGN_RESPONSE': 'u2f_sign_response', |
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49 | 'U2F_GET_API_VERSION_REQUEST': 'u2f_get_api_version_request', |
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50 | 'U2F_GET_API_VERSION_RESPONSE': 'u2f_get_api_version_response' |
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51 | }; |
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52 | |||
53 | |||
54 | /** |
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55 | * Response status codes |
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56 | * @const |
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57 | * @enum {number} |
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58 | */ |
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59 | u2f.ErrorCodes = { |
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60 | 'OK': 0, |
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61 | 'OTHER_ERROR': 1, |
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62 | 'BAD_REQUEST': 2, |
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63 | 'CONFIGURATION_UNSUPPORTED': 3, |
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64 | 'DEVICE_INELIGIBLE': 4, |
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65 | 'TIMEOUT': 5 |
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66 | }; |
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67 | |||
68 | |||
69 | /** |
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70 | * A message for registration requests |
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71 | * @typedef {{ |
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72 | * type: u2f.MessageTypes, |
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73 | * appId: ?string, |
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74 | * timeoutSeconds: ?number, |
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75 | * requestId: ?number |
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76 | * }} |
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77 | */ |
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78 | u2f.U2fRequest; |
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79 | |||
80 | |||
81 | /** |
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82 | * A message for registration responses |
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83 | * @typedef {{ |
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84 | * type: u2f.MessageTypes, |
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85 | * responseData: (u2f.Error | u2f.RegisterResponse | u2f.SignResponse), |
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86 | * requestId: ?number |
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87 | * }} |
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88 | */ |
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89 | u2f.U2fResponse; |
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90 | |||
91 | |||
92 | /** |
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93 | * An error object for responses |
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94 | * @typedef {{ |
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95 | * errorCode: u2f.ErrorCodes, |
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96 | * errorMessage: ?string |
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97 | * }} |
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98 | */ |
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99 | u2f.Error; |
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100 | |||
101 | /** |
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102 | * Data object for a single sign request. |
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103 | * @typedef {enum {BLUETOOTH_RADIO, BLUETOOTH_LOW_ENERGY, USB, NFC, USB_INTERNAL}} |
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104 | */ |
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105 | u2f.Transport; |
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106 | |||
107 | |||
108 | /** |
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109 | * Data object for a single sign request. |
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110 | * @typedef {Array<u2f.Transport>} |
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111 | */ |
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112 | u2f.Transports; |
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113 | |||
114 | /** |
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115 | * Data object for a single sign request. |
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116 | * @typedef {{ |
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117 | * version: string, |
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118 | * challenge: string, |
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119 | * keyHandle: string, |
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120 | * appId: string |
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121 | * }} |
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122 | */ |
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123 | u2f.SignRequest; |
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124 | |||
125 | |||
126 | /** |
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127 | * Data object for a sign response. |
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128 | * @typedef {{ |
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129 | * keyHandle: string, |
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130 | * signatureData: string, |
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131 | * clientData: string |
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132 | * }} |
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133 | */ |
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134 | u2f.SignResponse; |
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135 | |||
136 | |||
137 | /** |
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138 | * Data object for a registration request. |
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139 | * @typedef {{ |
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140 | * version: string, |
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141 | * challenge: string |
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142 | * }} |
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143 | */ |
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144 | u2f.RegisterRequest; |
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145 | |||
146 | |||
147 | /** |
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148 | * Data object for a registration response. |
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149 | * @typedef {{ |
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150 | * version: string, |
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151 | * keyHandle: string, |
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152 | * transports: Transports, |
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153 | * appId: string |
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154 | * }} |
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155 | */ |
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156 | u2f.RegisterResponse; |
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157 | |||
158 | |||
159 | /** |
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160 | * Data object for a registered key. |
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161 | * @typedef {{ |
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162 | * version: string, |
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163 | * keyHandle: string, |
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164 | * transports: ?Transports, |
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165 | * appId: ?string |
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166 | * }} |
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167 | */ |
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168 | u2f.RegisteredKey; |
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169 | |||
170 | |||
171 | /** |
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172 | * Data object for a get API register response. |
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173 | * @typedef {{ |
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174 | * js_api_version: number |
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175 | * }} |
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176 | */ |
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177 | u2f.GetJsApiVersionResponse; |
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178 | |||
179 | |||
180 | //Low level MessagePort API support |
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181 | |||
182 | /** |
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183 | * Sets up a MessagePort to the U2F extension using the |
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184 | * available mechanisms. |
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185 | * @param {function((MessagePort|u2f.WrappedChromeRuntimePort_))} callback |
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186 | */ |
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187 | u2f.getMessagePort = function(callback) { |
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188 | if (typeof chrome != 'undefined' && chrome.runtime) { |
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189 | // The actual message here does not matter, but we need to get a reply |
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190 | // for the callback to run. Thus, send an empty signature request |
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191 | // in order to get a failure response. |
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192 | var msg = { |
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193 | type: u2f.MessageTypes.U2F_SIGN_REQUEST, |
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194 | signRequests: [] |
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195 | }; |
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196 | chrome.runtime.sendMessage(u2f.EXTENSION_ID, msg, function() { |
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197 | if (!chrome.runtime.lastError) { |
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198 | // We are on a whitelisted origin and can talk directly |
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199 | // with the extension. |
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200 | u2f.getChromeRuntimePort_(callback); |
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201 | } else { |
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202 | // chrome.runtime was available, but we couldn't message |
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203 | // the extension directly, use iframe |
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204 | u2f.getIframePort_(callback); |
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205 | } |
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206 | }); |
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207 | } else if (u2f.isAndroidChrome_()) { |
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208 | u2f.getAuthenticatorPort_(callback); |
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209 | } else if (u2f.isIosChrome_()) { |
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210 | u2f.getIosPort_(callback); |
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211 | } else { |
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212 | // chrome.runtime was not available at all, which is normal |
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213 | // when this origin doesn't have access to any extensions. |
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214 | u2f.getIframePort_(callback); |
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215 | } |
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216 | }; |
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217 | |||
218 | /** |
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219 | * Detect chrome running on android based on the browser's useragent. |
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220 | * @private |
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221 | */ |
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222 | u2f.isAndroidChrome_ = function() { |
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223 | var userAgent = navigator.userAgent; |
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224 | return userAgent.indexOf('Chrome') != -1 && |
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225 | userAgent.indexOf('Android') != -1; |
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226 | }; |
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227 | |||
228 | /** |
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229 | * Detect chrome running on iOS based on the browser's platform. |
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230 | * @private |
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231 | */ |
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232 | u2f.isIosChrome_ = function() { |
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233 | return ["iPhone", "iPad", "iPod"].indexOf(navigator.platform) > -1; |
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234 | }; |
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235 | |||
236 | /** |
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237 | * Connects directly to the extension via chrome.runtime.connect. |
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238 | * @param {function(u2f.WrappedChromeRuntimePort_)} callback |
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239 | * @private |
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240 | */ |
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241 | u2f.getChromeRuntimePort_ = function(callback) { |
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242 | var port = chrome.runtime.connect(u2f.EXTENSION_ID, |
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243 | {'includeTlsChannelId': true}); |
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244 | setTimeout(function() { |
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245 | callback(new u2f.WrappedChromeRuntimePort_(port)); |
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246 | }, 0); |
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247 | }; |
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248 | |||
249 | /** |
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250 | * Return a 'port' abstraction to the Authenticator app. |
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251 | * @param {function(u2f.WrappedAuthenticatorPort_)} callback |
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252 | * @private |
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253 | */ |
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254 | u2f.getAuthenticatorPort_ = function(callback) { |
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255 | setTimeout(function() { |
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256 | callback(new u2f.WrappedAuthenticatorPort_()); |
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257 | }, 0); |
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258 | }; |
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259 | |||
260 | /** |
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261 | * Return a 'port' abstraction to the iOS client app. |
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262 | * @param {function(u2f.WrappedIosPort_)} callback |
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263 | * @private |
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264 | */ |
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265 | u2f.getIosPort_ = function(callback) { |
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266 | setTimeout(function() { |
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267 | callback(new u2f.WrappedIosPort_()); |
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268 | }, 0); |
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269 | }; |
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270 | |||
271 | /** |
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272 | * A wrapper for chrome.runtime.Port that is compatible with MessagePort. |
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273 | * @param {Port} port |
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274 | * @constructor |
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275 | * @private |
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276 | */ |
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277 | u2f.WrappedChromeRuntimePort_ = function(port) { |
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278 | this.port_ = port; |
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279 | }; |
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280 | |||
281 | /** |
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282 | * Format and return a sign request compliant with the JS API version supported by the extension. |
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283 | * @param {Array<u2f.SignRequest>} signRequests |
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284 | * @param {number} timeoutSeconds |
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285 | * @param {number} reqId |
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286 | * @return {Object} |
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287 | */ |
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288 | u2f.formatSignRequest_ = |
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289 | function(appId, challenge, registeredKeys, timeoutSeconds, reqId) { |
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290 | if (js_api_version === undefined || js_api_version < 1.1) { |
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291 | // Adapt request to the 1.0 JS API |
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292 | var signRequests = []; |
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293 | for (var i = 0; i < registeredKeys.length; i++) { |
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294 | signRequests[i] = { |
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295 | version: registeredKeys[i].version, |
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296 | challenge: challenge, |
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297 | keyHandle: registeredKeys[i].keyHandle, |
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298 | appId: appId |
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299 | }; |
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300 | } |
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301 | return { |
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302 | type: u2f.MessageTypes.U2F_SIGN_REQUEST, |
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303 | signRequests: signRequests, |
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304 | timeoutSeconds: timeoutSeconds, |
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305 | requestId: reqId |
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306 | }; |
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307 | } |
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308 | // JS 1.1 API |
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309 | return { |
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310 | type: u2f.MessageTypes.U2F_SIGN_REQUEST, |
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311 | appId: appId, |
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312 | challenge: challenge, |
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313 | registeredKeys: registeredKeys, |
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314 | timeoutSeconds: timeoutSeconds, |
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315 | requestId: reqId |
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316 | }; |
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317 | }; |
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318 | |||
319 | /** |
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320 | * Format and return a register request compliant with the JS API version supported by the extension.. |
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321 | * @param {Array<u2f.SignRequest>} signRequests |
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322 | * @param {Array<u2f.RegisterRequest>} signRequests |
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323 | * @param {number} timeoutSeconds |
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324 | * @param {number} reqId |
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325 | * @return {Object} |
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326 | */ |
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327 | u2f.formatRegisterRequest_ = |
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328 | function(appId, registeredKeys, registerRequests, timeoutSeconds, reqId) { |
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329 | if (js_api_version === undefined || js_api_version < 1.1) { |
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330 | // Adapt request to the 1.0 JS API |
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331 | for (var i = 0; i < registerRequests.length; i++) { |
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332 | registerRequests[i].appId = appId; |
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333 | } |
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334 | var signRequests = []; |
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335 | for (var i = 0; i < registeredKeys.length; i++) { |
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336 | signRequests[i] = { |
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337 | version: registeredKeys[i].version, |
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338 | challenge: registerRequests[0], |
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339 | keyHandle: registeredKeys[i].keyHandle, |
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340 | appId: appId |
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341 | }; |
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342 | } |
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343 | return { |
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344 | type: u2f.MessageTypes.U2F_REGISTER_REQUEST, |
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345 | signRequests: signRequests, |
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346 | registerRequests: registerRequests, |
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347 | timeoutSeconds: timeoutSeconds, |
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348 | requestId: reqId |
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349 | }; |
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350 | } |
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351 | // JS 1.1 API |
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352 | return { |
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353 | type: u2f.MessageTypes.U2F_REGISTER_REQUEST, |
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354 | appId: appId, |
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355 | registerRequests: registerRequests, |
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356 | registeredKeys: registeredKeys, |
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357 | timeoutSeconds: timeoutSeconds, |
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358 | requestId: reqId |
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359 | }; |
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360 | }; |
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361 | |||
362 | |||
363 | /** |
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364 | * Posts a message on the underlying channel. |
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365 | * @param {Object} message |
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366 | */ |
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367 | u2f.WrappedChromeRuntimePort_.prototype.postMessage = function(message) { |
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368 | this.port_.postMessage(message); |
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369 | }; |
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370 | |||
371 | |||
372 | /** |
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373 | * Emulates the HTML 5 addEventListener interface. Works only for the |
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374 | * onmessage event, which is hooked up to the chrome.runtime.Port.onMessage. |
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375 | * @param {string} eventName |
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376 | * @param {function({data: Object})} handler |
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377 | */ |
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378 | u2f.WrappedChromeRuntimePort_.prototype.addEventListener = |
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379 | function(eventName, handler) { |
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380 | var name = eventName.toLowerCase(); |
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381 | if (name == 'message' || name == 'onmessage') { |
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382 | this.port_.onMessage.addListener(function(message) { |
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383 | // Emulate a minimal MessageEvent object |
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384 | handler({'data': message}); |
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385 | }); |
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386 | } else { |
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387 | console.error('WrappedChromeRuntimePort only supports onMessage'); |
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388 | } |
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389 | }; |
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390 | |||
391 | /** |
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392 | * Wrap the Authenticator app with a MessagePort interface. |
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393 | * @constructor |
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394 | * @private |
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395 | */ |
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396 | u2f.WrappedAuthenticatorPort_ = function() { |
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397 | this.requestId_ = -1; |
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398 | this.requestObject_ = null; |
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399 | } |
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400 | |||
401 | /** |
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402 | * Launch the Authenticator intent. |
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403 | * @param {Object} message |
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404 | */ |
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405 | u2f.WrappedAuthenticatorPort_.prototype.postMessage = function(message) { |
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406 | var intentUrl = |
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407 | u2f.WrappedAuthenticatorPort_.INTENT_URL_BASE_ + |
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408 | ';S.request=' + encodeURIComponent(JSON.stringify(message)) + |
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409 | ';end'; |
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410 | document.location = intentUrl; |
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411 | }; |
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412 | |||
413 | /** |
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414 | * Tells what type of port this is. |
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415 | * @return {String} port type |
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416 | */ |
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417 | u2f.WrappedAuthenticatorPort_.prototype.getPortType = function() { |
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418 | return "WrappedAuthenticatorPort_"; |
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419 | }; |
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420 | |||
421 | |||
422 | /** |
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423 | * Emulates the HTML 5 addEventListener interface. |
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424 | * @param {string} eventName |
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425 | * @param {function({data: Object})} handler |
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426 | */ |
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427 | u2f.WrappedAuthenticatorPort_.prototype.addEventListener = function(eventName, handler) { |
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428 | var name = eventName.toLowerCase(); |
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429 | if (name == 'message') { |
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430 | var self = this; |
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431 | /* Register a callback to that executes when |
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432 | * chrome injects the response. */ |
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433 | window.addEventListener( |
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434 | 'message', self.onRequestUpdate_.bind(self, handler), false); |
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435 | } else { |
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436 | console.error('WrappedAuthenticatorPort only supports message'); |
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437 | } |
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438 | }; |
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439 | |||
440 | /** |
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441 | * Callback invoked when a response is received from the Authenticator. |
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442 | * @param function({data: Object}) callback |
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443 | * @param {Object} message message Object |
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444 | */ |
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445 | u2f.WrappedAuthenticatorPort_.prototype.onRequestUpdate_ = |
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446 | function(callback, message) { |
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447 | var messageObject = JSON.parse(message.data); |
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448 | var intentUrl = messageObject['intentURL']; |
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449 | |||
450 | var errorCode = messageObject['errorCode']; |
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451 | var responseObject = null; |
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452 | if (messageObject.hasOwnProperty('data')) { |
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453 | responseObject = /** @type {Object} */ ( |
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454 | JSON.parse(messageObject['data'])); |
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455 | } |
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456 | |||
457 | callback({'data': responseObject}); |
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458 | }; |
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459 | |||
460 | /** |
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461 | * Base URL for intents to Authenticator. |
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462 | * @const |
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463 | * @private |
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464 | */ |
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465 | u2f.WrappedAuthenticatorPort_.INTENT_URL_BASE_ = |
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466 | 'intent:#Intent;action=com.google.android.apps.authenticator.AUTHENTICATE'; |
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467 | |||
468 | /** |
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469 | * Wrap the iOS client app with a MessagePort interface. |
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470 | * @constructor |
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471 | * @private |
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472 | */ |
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473 | u2f.WrappedIosPort_ = function() {}; |
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474 | |||
475 | /** |
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476 | * Launch the iOS client app request |
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477 | * @param {Object} message |
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478 | */ |
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479 | u2f.WrappedIosPort_.prototype.postMessage = function(message) { |
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480 | var str = JSON.stringify(message); |
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481 | var url = "u2f://auth?" + encodeURI(str); |
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482 | location.replace(url); |
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483 | }; |
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484 | |||
485 | /** |
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486 | * Tells what type of port this is. |
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487 | * @return {String} port type |
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488 | */ |
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489 | u2f.WrappedIosPort_.prototype.getPortType = function() { |
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490 | return "WrappedIosPort_"; |
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491 | }; |
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492 | |||
493 | /** |
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494 | * Emulates the HTML 5 addEventListener interface. |
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495 | * @param {string} eventName |
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496 | * @param {function({data: Object})} handler |
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497 | */ |
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498 | u2f.WrappedIosPort_.prototype.addEventListener = function(eventName, handler) { |
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499 | var name = eventName.toLowerCase(); |
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500 | if (name !== 'message') { |
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501 | console.error('WrappedIosPort only supports message'); |
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502 | } |
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503 | }; |
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504 | |||
505 | /** |
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506 | * Sets up an embedded trampoline iframe, sourced from the extension. |
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507 | * @param {function(MessagePort)} callback |
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508 | * @private |
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509 | */ |
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510 | u2f.getIframePort_ = function(callback) { |
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511 | // Create the iframe |
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512 | var iframeOrigin = 'chrome-extension://' + u2f.EXTENSION_ID; |
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513 | var iframe = document.createElement('iframe'); |
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514 | iframe.src = iframeOrigin + '/u2f-comms.html'; |
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515 | iframe.setAttribute('style', 'display:none'); |
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516 | document.body.appendChild(iframe); |
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517 | |||
518 | var channel = new MessageChannel(); |
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519 | var ready = function(message) { |
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520 | if (message.data == 'ready') { |
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521 | channel.port1.removeEventListener('message', ready); |
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522 | callback(channel.port1); |
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523 | } else { |
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524 | console.error('First event on iframe port was not "ready"'); |
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525 | } |
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526 | }; |
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527 | channel.port1.addEventListener('message', ready); |
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528 | channel.port1.start(); |
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529 | |||
530 | iframe.addEventListener('load', function() { |
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531 | // Deliver the port to the iframe and initialize |
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532 | iframe.contentWindow.postMessage('init', iframeOrigin, [channel.port2]); |
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533 | }); |
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534 | }; |
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535 | |||
536 | |||
537 | //High-level JS API |
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538 | |||
539 | /** |
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540 | * Default extension response timeout in seconds. |
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541 | * @const |
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542 | */ |
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543 | u2f.EXTENSION_TIMEOUT_SEC = 30; |
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544 | |||
545 | /** |
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546 | * A singleton instance for a MessagePort to the extension. |
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547 | * @type {MessagePort|u2f.WrappedChromeRuntimePort_} |
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548 | * @private |
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549 | */ |
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550 | u2f.port_ = null; |
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551 | |||
552 | /** |
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553 | * Callbacks waiting for a port |
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554 | * @type {Array<function((MessagePort|u2f.WrappedChromeRuntimePort_))>} |
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555 | * @private |
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556 | */ |
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557 | u2f.waitingForPort_ = []; |
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558 | |||
559 | /** |
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560 | * A counter for requestIds. |
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561 | * @type {number} |
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562 | * @private |
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563 | */ |
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564 | u2f.reqCounter_ = 0; |
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565 | |||
566 | /** |
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567 | * A map from requestIds to client callbacks |
||
568 | * @type {Object.<number,(function((u2f.Error|u2f.RegisterResponse)) |
||
569 | * |function((u2f.Error|u2f.SignResponse)))>} |
||
570 | * @private |
||
571 | */ |
||
572 | u2f.callbackMap_ = {}; |
||
573 | |||
574 | /** |
||
575 | * Creates or retrieves the MessagePort singleton to use. |
||
576 | * @param {function((MessagePort|u2f.WrappedChromeRuntimePort_))} callback |
||
577 | * @private |
||
578 | */ |
||
579 | u2f.getPortSingleton_ = function(callback) { |
||
580 | if (u2f.port_) { |
||
581 | callback(u2f.port_); |
||
582 | } else { |
||
583 | if (u2f.waitingForPort_.length == 0) { |
||
584 | u2f.getMessagePort(function(port) { |
||
585 | u2f.port_ = port; |
||
586 | u2f.port_.addEventListener('message', |
||
587 | /** @type {function(Event)} */ (u2f.responseHandler_)); |
||
588 | |||
589 | // Careful, here be async callbacks. Maybe. |
||
590 | while (u2f.waitingForPort_.length) |
||
591 | u2f.waitingForPort_.shift()(u2f.port_); |
||
592 | }); |
||
593 | } |
||
594 | u2f.waitingForPort_.push(callback); |
||
595 | } |
||
596 | }; |
||
597 | |||
598 | /** |
||
599 | * Handles response messages from the extension. |
||
600 | * @param {MessageEvent.<u2f.Response>} message |
||
601 | * @private |
||
602 | */ |
||
603 | u2f.responseHandler_ = function(message) { |
||
604 | var response = message.data; |
||
605 | var reqId = response['requestId']; |
||
606 | if (!reqId || !u2f.callbackMap_[reqId]) { |
||
607 | console.error('Unknown or missing requestId in response.'); |
||
608 | return; |
||
609 | } |
||
610 | var cb = u2f.callbackMap_[reqId]; |
||
611 | delete u2f.callbackMap_[reqId]; |
||
612 | cb(response['responseData']); |
||
613 | }; |
||
614 | |||
615 | /** |
||
616 | * Dispatches an array of sign requests to available U2F tokens. |
||
617 | * If the JS API version supported by the extension is unknown, it first sends a |
||
618 | * message to the extension to find out the supported API version and then it sends |
||
619 | * the sign request. |
||
620 | * @param {string=} appId |
||
621 | * @param {string=} challenge |
||
622 | * @param {Array<u2f.RegisteredKey>} registeredKeys |
||
623 | * @param {function((u2f.Error|u2f.SignResponse))} callback |
||
624 | * @param {number=} opt_timeoutSeconds |
||
625 | */ |
||
626 | u2f.sign = function(appId, challenge, registeredKeys, callback, opt_timeoutSeconds) { |
||
627 | if (js_api_version === undefined) { |
||
628 | // Send a message to get the extension to JS API version, then send the actual sign request. |
||
629 | u2f.getApiVersion( |
||
630 | function (response) { |
||
631 | js_api_version = response['js_api_version'] === undefined ? 0 : response['js_api_version']; |
||
632 | console.log("Extension JS API Version: ", js_api_version); |
||
633 | u2f.sendSignRequest(appId, challenge, registeredKeys, callback, opt_timeoutSeconds); |
||
634 | }); |
||
635 | } else { |
||
636 | // We know the JS API version. Send the actual sign request in the supported API version. |
||
637 | u2f.sendSignRequest(appId, challenge, registeredKeys, callback, opt_timeoutSeconds); |
||
638 | } |
||
639 | }; |
||
640 | |||
641 | /** |
||
642 | * Dispatches an array of sign requests to available U2F tokens. |
||
643 | * @param {string=} appId |
||
644 | * @param {string=} challenge |
||
645 | * @param {Array<u2f.RegisteredKey>} registeredKeys |
||
646 | * @param {function((u2f.Error|u2f.SignResponse))} callback |
||
647 | * @param {number=} opt_timeoutSeconds |
||
648 | */ |
||
649 | u2f.sendSignRequest = function(appId, challenge, registeredKeys, callback, opt_timeoutSeconds) { |
||
650 | u2f.getPortSingleton_(function(port) { |
||
651 | var reqId = ++u2f.reqCounter_; |
||
652 | u2f.callbackMap_[reqId] = callback; |
||
653 | var timeoutSeconds = (typeof opt_timeoutSeconds !== 'undefined' ? |
||
654 | opt_timeoutSeconds : u2f.EXTENSION_TIMEOUT_SEC); |
||
655 | var req = u2f.formatSignRequest_(appId, challenge, registeredKeys, timeoutSeconds, reqId); |
||
656 | port.postMessage(req); |
||
657 | }); |
||
658 | }; |
||
659 | |||
660 | /** |
||
661 | * Dispatches register requests to available U2F tokens. An array of sign |
||
662 | * requests identifies already registered tokens. |
||
663 | * If the JS API version supported by the extension is unknown, it first sends a |
||
664 | * message to the extension to find out the supported API version and then it sends |
||
665 | * the register request. |
||
666 | * @param {string=} appId |
||
667 | * @param {Array<u2f.RegisterRequest>} registerRequests |
||
668 | * @param {Array<u2f.RegisteredKey>} registeredKeys |
||
669 | * @param {function((u2f.Error|u2f.RegisterResponse))} callback |
||
670 | * @param {number=} opt_timeoutSeconds |
||
671 | */ |
||
672 | u2f.register = function(appId, registerRequests, registeredKeys, callback, opt_timeoutSeconds) { |
||
673 | if (js_api_version === undefined) { |
||
674 | // Send a message to get the extension to JS API version, then send the actual register request. |
||
675 | u2f.getApiVersion( |
||
676 | function (response) { |
||
677 | js_api_version = response['js_api_version'] === undefined ? 0: response['js_api_version']; |
||
678 | console.log("Extension JS API Version: ", js_api_version); |
||
679 | u2f.sendRegisterRequest(appId, registerRequests, registeredKeys, |
||
680 | callback, opt_timeoutSeconds); |
||
681 | }); |
||
682 | } else { |
||
683 | // We know the JS API version. Send the actual register request in the supported API version. |
||
684 | u2f.sendRegisterRequest(appId, registerRequests, registeredKeys, |
||
685 | callback, opt_timeoutSeconds); |
||
686 | } |
||
687 | }; |
||
688 | |||
689 | /** |
||
690 | * Dispatches register requests to available U2F tokens. An array of sign |
||
691 | * requests identifies already registered tokens. |
||
692 | * @param {string=} appId |
||
693 | * @param {Array<u2f.RegisterRequest>} registerRequests |
||
694 | * @param {Array<u2f.RegisteredKey>} registeredKeys |
||
695 | * @param {function((u2f.Error|u2f.RegisterResponse))} callback |
||
696 | * @param {number=} opt_timeoutSeconds |
||
697 | */ |
||
698 | u2f.sendRegisterRequest = function(appId, registerRequests, registeredKeys, callback, opt_timeoutSeconds) { |
||
699 | u2f.getPortSingleton_(function(port) { |
||
700 | var reqId = ++u2f.reqCounter_; |
||
701 | u2f.callbackMap_[reqId] = callback; |
||
702 | var timeoutSeconds = (typeof opt_timeoutSeconds !== 'undefined' ? |
||
703 | opt_timeoutSeconds : u2f.EXTENSION_TIMEOUT_SEC); |
||
704 | var req = u2f.formatRegisterRequest_( |
||
705 | appId, registeredKeys, registerRequests, timeoutSeconds, reqId); |
||
706 | port.postMessage(req); |
||
707 | }); |
||
708 | }; |
||
709 | |||
710 | |||
711 | /** |
||
712 | * Dispatches a message to the extension to find out the supported |
||
713 | * JS API version. |
||
714 | * If the user is on a mobile phone and is thus using Google Authenticator instead |
||
715 | * of the Chrome extension, don't send the request and simply return 0. |
||
716 | * @param {function((u2f.Error|u2f.GetJsApiVersionResponse))} callback |
||
717 | * @param {number=} opt_timeoutSeconds |
||
718 | */ |
||
719 | u2f.getApiVersion = function(callback, opt_timeoutSeconds) { |
||
720 | u2f.getPortSingleton_(function(port) { |
||
721 | // If we are using Android Google Authenticator or iOS client app, |
||
722 | // do not fire an intent to ask which JS API version to use. |
||
723 | if (port.getPortType) { |
||
724 | var apiVersion; |
||
725 | switch (port.getPortType()) { |
||
726 | case 'WrappedIosPort_': |
||
727 | case 'WrappedAuthenticatorPort_': |
||
728 | apiVersion = 1.1; |
||
729 | break; |
||
730 | |||
731 | default: |
||
732 | apiVersion = 0; |
||
733 | break; |
||
734 | } |
||
735 | callback({ 'js_api_version': apiVersion }); |
||
736 | return; |
||
737 | } |
||
738 | var reqId = ++u2f.reqCounter_; |
||
739 | u2f.callbackMap_[reqId] = callback; |
||
740 | var req = { |
||
741 | type: u2f.MessageTypes.U2F_GET_API_VERSION_REQUEST, |
||
742 | timeoutSeconds: (typeof opt_timeoutSeconds !== 'undefined' ? |
||
743 | opt_timeoutSeconds : u2f.EXTENSION_TIMEOUT_SEC), |
||
744 | requestId: reqId |
||
745 | }; |
||
746 | port.postMessage(req); |
||
747 | }); |
||
748 | }; |
||
749 |
This check looks for parameters in functions that are not used in the function body and are not followed by other parameters which are used inside the function.