1 | var base64Decode, base64UrlDecode, createDateFromISO8601, parseToken, |
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2 | __hasProp = Object.prototype.hasOwnProperty, |
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3 | __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor; child.__super__ = parent.prototype; return child; }; |
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4 | |
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5 | createDateFromISO8601 = function(string) { |
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6 | var d, date, offset, regexp, time, _ref; |
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7 | regexp = "([0-9]{4})(-([0-9]{2})(-([0-9]{2})" + "(T([0-9]{2}):([0-9]{2})(:([0-9]{2})(\.([0-9]+))?)?" + "(Z|(([-+])([0-9]{2}):([0-9]{2})))?)?)?)?"; |
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8 | d = string.match(new RegExp(regexp)); |
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9 | offset = 0; |
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10 | date = new Date(d[1], 0, 1); |
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11 | if (d[3]) date.setMonth(d[3] - 1); |
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12 | if (d[5]) date.setDate(d[5]); |
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13 | if (d[7]) date.setHours(d[7]); |
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14 | if (d[8]) date.setMinutes(d[8]); |
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15 | if (d[10]) date.setSeconds(d[10]); |
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16 | if (d[12]) date.setMilliseconds(Number("0." + d[12]) * 1000); |
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17 | if (d[14]) { |
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18 | offset = (Number(d[16]) * 60) + Number(d[17]); |
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19 | offset *= (_ref = d[15] === '-') != null ? _ref : { |
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20 | 1: -1 |
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21 | }; |
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22 | } |
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23 | offset -= date.getTimezoneOffset(); |
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24 | time = Number(date) + (offset * 60 * 1000); |
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25 | date.setTime(Number(time)); |
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26 | return date; |
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27 | }; |
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28 | |
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29 | base64Decode = function(data) { |
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30 | var ac, b64, bits, dec, h1, h2, h3, h4, i, o1, o2, o3, tmp_arr; |
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31 | if (typeof atob !== "undefined" && atob !== null) { |
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32 | return atob(data); |
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33 | } else { |
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34 | b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; |
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35 | i = 0; |
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36 | ac = 0; |
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37 | dec = ""; |
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38 | tmp_arr = []; |
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39 | if (!data) return data; |
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40 | data += ''; |
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41 | while (i < data.length) { |
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42 | h1 = b64.indexOf(data.charAt(i++)); |
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43 | h2 = b64.indexOf(data.charAt(i++)); |
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44 | h3 = b64.indexOf(data.charAt(i++)); |
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45 | h4 = b64.indexOf(data.charAt(i++)); |
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46 | bits = h1 << 18 | h2 << 12 | h3 << 6 | h4; |
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47 | o1 = bits >> 16 & 0xff; |
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48 | o2 = bits >> 8 & 0xff; |
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49 | o3 = bits & 0xff; |
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50 | if (h3 === 64) { |
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51 | tmp_arr[ac++] = String.fromCharCode(o1); |
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52 | } else if (h4 === 64) { |
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53 | tmp_arr[ac++] = String.fromCharCode(o1, o2); |
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54 | } else { |
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55 | tmp_arr[ac++] = String.fromCharCode(o1, o2, o3); |
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56 | } |
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57 | } |
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58 | return tmp_arr.join(''); |
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59 | } |
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60 | }; |
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61 | |
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62 | base64UrlDecode = function(data) { |
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63 | var i, m, _ref; |
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64 | m = data.length % 4; |
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65 | if (m !== 0) { |
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66 | for (i = 0, _ref = 4 - m; 0 <= _ref ? i < _ref : i > _ref; 0 <= _ref ? i++ : i--) { |
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67 | data += '='; |
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68 | } |
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69 | } |
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70 | data = data.replace(/-/g, '+'); |
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71 | data = data.replace(/_/g, '/'); |
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72 | return base64Decode(data); |
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73 | }; |
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74 | |
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75 | parseToken = function(token) { |
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76 | var head, payload, sig, _ref; |
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77 | _ref = token.split('.'), head = _ref[0], payload = _ref[1], sig = _ref[2]; |
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78 | return JSON.parse(base64UrlDecode(payload)); |
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79 | }; |
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80 | |
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81 | Annotator.Plugin.Auth = (function(_super) { |
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82 | |
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83 | __extends(Auth, _super); |
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84 | |
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85 | Auth.prototype.options = { |
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86 | token: null, |
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87 | tokenUrl: '/auth/token', |
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88 | autoFetch: true |
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89 | }; |
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90 | |
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91 | function Auth(element, options) { |
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92 | Auth.__super__.constructor.apply(this, arguments); |
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93 | this.waitingForToken = []; |
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94 | if (this.options.token) { |
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95 | this.setToken(this.options.token); |
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96 | } else { |
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97 | this.requestToken(); |
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98 | } |
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99 | } |
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100 | |
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101 | Auth.prototype.requestToken = function() { |
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102 | var _this = this; |
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103 | this.requestInProgress = true; |
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104 | return $.ajax({ |
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105 | url: this.options.tokenUrl, |
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106 | dataType: 'text', |
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107 | xhrFields: { |
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108 | withCredentials: true |
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109 | } |
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110 | }).done(function(data, status, xhr) { |
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111 | return _this.setToken(data); |
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112 | }).fail(function(xhr, status, err) { |
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113 | var msg; |
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114 | msg = Annotator._t("Couldn't get auth token:"); |
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115 | console.error("" + msg + " " + err, xhr); |
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116 | return Annotator.showNotification("" + msg + " " + xhr.responseText, Annotator.Notification.ERROR); |
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117 | }).always(function() { |
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118 | return _this.requestInProgress = false; |
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119 | }); |
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120 | }; |
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121 | |
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122 | Auth.prototype.setToken = function(token) { |
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123 | var _results, |
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124 | _this = this; |
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125 | this.token = token; |
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126 | this._unsafeToken = parseToken(token); |
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127 | if (this.haveValidToken()) { |
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128 | if (this.options.autoFetch) { |
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129 | this.refreshTimeout = setTimeout((function() { |
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130 | return _this.requestToken(); |
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131 | }), (this.timeToExpiry() - 2) * 1000); |
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132 | } |
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133 | this.updateHeaders(); |
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134 | _results = []; |
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135 | while (this.waitingForToken.length > 0) { |
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136 | _results.push(this.waitingForToken.pop()(this._unsafeToken)); |
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137 | } |
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138 | return _results; |
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139 | } else { |
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140 | console.warn(Annotator._t("Didn't get a valid token.")); |
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141 | if (this.options.autoFetch) { |
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142 | console.warn(Annotator._t("Getting a new token in 10s.")); |
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143 | return setTimeout((function() { |
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144 | return _this.requestToken(); |
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145 | }), 10 * 1000); |
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146 | } |
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147 | } |
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148 | }; |
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149 | |
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150 | Auth.prototype.haveValidToken = function() { |
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151 | var allFields; |
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152 | allFields = this._unsafeToken && this._unsafeToken.issuedAt && this._unsafeToken.ttl && this._unsafeToken.consumerKey; |
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153 | return allFields && this.timeToExpiry() > 0; |
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154 | }; |
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155 | |
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156 | Auth.prototype.timeToExpiry = function() { |
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157 | var expiry, issue, now, timeToExpiry; |
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158 | now = new Date().getTime() / 1000; |
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159 | issue = createDateFromISO8601(this._unsafeToken.issuedAt).getTime() / 1000; |
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160 | expiry = issue + this._unsafeToken.ttl; |
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161 | timeToExpiry = expiry - now; |
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162 | if (timeToExpiry > 0) { |
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163 | return timeToExpiry; |
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164 | } else { |
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165 | return 0; |
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166 | } |
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167 | }; |
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168 | |
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169 | Auth.prototype.updateHeaders = function() { |
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170 | var current; |
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171 | current = this.element.data('annotator:headers'); |
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172 | return this.element.data('annotator:headers', $.extend(current, { |
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173 | 'x-annotator-auth-token': this.token |
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174 | })); |
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175 | }; |
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176 | |
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177 | Auth.prototype.withToken = function(callback) { |
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178 | if (!(callback != null)) return; |
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179 | if (this.haveValidToken()) { |
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180 | return callback(this._unsafeToken); |
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181 | } else { |
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182 | this.waitingForToken.push(callback); |
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183 | if (!this.requestInProgress) return this.requestToken(); |
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184 | } |
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185 | }; |
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186 | |
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187 | return Auth; |
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188 | |
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189 | })(Annotator.Plugin); |
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