Mercurial > hg > OKFNAnnotator

annotate annotator_files/lib/plugin/auth.js @ 4:6979313586cf

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new version of annotator.
author casties
date Mon, 27 Aug 2012 19:05:38 +0200
parents 6356e78ccf5c
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 // Generated by CoffeeScript 1.3.3
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2 var base64Decode, base64UrlDecode, createDateFromISO8601, parseToken,
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3 __hasProp = {}.hasOwnProperty,
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4 __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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5
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6 createDateFromISO8601 = function(string) {
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7 var d, date, offset, regexp, time, _ref;
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8 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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9 d = string.match(new RegExp(regexp));
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10 offset = 0;
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11 date = new Date(d[1], 0, 1);
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12 if (d[3]) {
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13 date.setMonth(d[3] - 1);
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14 }
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15 if (d[5]) {
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16 date.setDate(d[5]);
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17 }
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18 if (d[7]) {
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19 date.setHours(d[7]);
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20 }
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21 if (d[8]) {
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22 date.setMinutes(d[8]);
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23 }
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24 if (d[10]) {
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25 date.setSeconds(d[10]);
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26 }
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27 if (d[12]) {
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28 date.setMilliseconds(Number("0." + d[12]) * 1000);
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29 }
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30 if (d[14]) {
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31 offset = (Number(d[16]) * 60) + Number(d[17]);
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32 offset *= (_ref = d[15] === '-') != null ? _ref : {
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33 1: -1
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34 };
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35 }
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36 offset -= date.getTimezoneOffset();
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37 time = Number(date) + (offset * 60 * 1000);
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38 date.setTime(Number(time));
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39 return date;
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40 };
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41
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42 base64Decode = function(data) {
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43 var ac, b64, bits, dec, h1, h2, h3, h4, i, o1, o2, o3, tmp_arr;
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44 if (typeof atob !== "undefined" && atob !== null) {
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45 return atob(data);
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46 } else {
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47 b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
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48 i = 0;
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49 ac = 0;
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50 dec = "";
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51 tmp_arr = [];
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52 if (!data) {
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53 return data;
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54 }
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55 data += '';
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56 while (i < data.length) {
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57 h1 = b64.indexOf(data.charAt(i++));
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58 h2 = b64.indexOf(data.charAt(i++));
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59 h3 = b64.indexOf(data.charAt(i++));
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60 h4 = b64.indexOf(data.charAt(i++));
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61 bits = h1 << 18 | h2 << 12 | h3 << 6 | h4;
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62 o1 = bits >> 16 & 0xff;
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63 o2 = bits >> 8 & 0xff;
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64 o3 = bits & 0xff;
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65 if (h3 === 64) {
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66 tmp_arr[ac++] = String.fromCharCode(o1);
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67 } else if (h4 === 64) {
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68 tmp_arr[ac++] = String.fromCharCode(o1, o2);
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69 } else {
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70 tmp_arr[ac++] = String.fromCharCode(o1, o2, o3);
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71 }
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72 }
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73 return tmp_arr.join('');
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74 }
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75 };
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76
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77 base64UrlDecode = function(data) {
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78 var i, m, _i, _ref;
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79 m = data.length % 4;
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80 if (m !== 0) {
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81 for (i = _i = 0, _ref = 4 - m; 0 <= _ref ? _i < _ref : _i > _ref; i = 0 <= _ref ? ++_i : --_i) {
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82 data += '=';
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83 }
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84 }
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85 data = data.replace(/-/g, '+');
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86 data = data.replace(/_/g, '/');
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87 return base64Decode(data);
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88 };
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89
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90 parseToken = function(token) {
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91 var head, payload, sig, _ref;
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92 _ref = token.split('.'), head = _ref[0], payload = _ref[1], sig = _ref[2];
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93 return JSON.parse(base64UrlDecode(payload));
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94 };
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95
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96 Annotator.Plugin.Auth = (function(_super) {
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97
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98 __extends(Auth, _super);
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99
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100 Auth.prototype.options = {
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101 token: null,
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102 tokenUrl: '/auth/token',
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103 autoFetch: true
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104 };
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105
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106 function Auth(element, options) {
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107 Auth.__super__.constructor.apply(this, arguments);
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108 this.waitingForToken = [];
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109 if (this.options.token) {
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110 this.setToken(this.options.token);
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111 } else {
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112 this.requestToken();
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113 }
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114 }
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115
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116 Auth.prototype.requestToken = function() {
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117 var _this = this;
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118 this.requestInProgress = true;
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119 return $.ajax({
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120 url: this.options.tokenUrl,
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121 dataType: 'text',
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122 xhrFields: {
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123 withCredentials: true
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124 }
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125 }).done(function(data, status, xhr) {
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126 return _this.setToken(data);
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127 }).fail(function(xhr, status, err) {
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128 var msg;
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129 msg = Annotator._t("Couldn't get auth token:");
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130 console.error("" + msg + " " + err, xhr);
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131 return Annotator.showNotification("" + msg + " " + xhr.responseText, Annotator.Notification.ERROR);
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132 }).always(function() {
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133 return _this.requestInProgress = false;
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134 });
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135 };
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136
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137 Auth.prototype.setToken = function(token) {
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138 var _results,
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139 _this = this;
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140 this.token = token;
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141 this._unsafeToken = parseToken(token);
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142 if (this.haveValidToken()) {
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143 if (this.options.autoFetch) {
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144 this.refreshTimeout = setTimeout((function() {
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145 return _this.requestToken();
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146 }), (this.timeToExpiry() - 2) * 1000);
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147 }
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148 this.updateHeaders();
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149 _results = [];
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150 while (this.waitingForToken.length > 0) {
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151 _results.push(this.waitingForToken.pop()(this._unsafeToken));
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152 }
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153 return _results;
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154 } else {
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155 console.warn(Annotator._t("Didn't get a valid token."));
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156 if (this.options.autoFetch) {
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157 console.warn(Annotator._t("Getting a new token in 10s."));
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158 return setTimeout((function() {
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159 return _this.requestToken();
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160 }), 10 * 1000);
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161 }
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162 }
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163 };
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164
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165 Auth.prototype.haveValidToken = function() {
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166 var allFields;
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167 allFields = this._unsafeToken && this._unsafeToken.issuedAt && this._unsafeToken.ttl && this._unsafeToken.consumerKey;
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168 return allFields && this.timeToExpiry() > 0;
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169 };
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170
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171 Auth.prototype.timeToExpiry = function() {
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172 var expiry, issue, now, timeToExpiry;
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173 now = new Date().getTime() / 1000;
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174 issue = createDateFromISO8601(this._unsafeToken.issuedAt).getTime() / 1000;
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175 expiry = issue + this._unsafeToken.ttl;
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176 timeToExpiry = expiry - now;
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177 if (timeToExpiry > 0) {
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178 return timeToExpiry;
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179 } else {
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180 return 0;
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181 }
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182 };
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183
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184 Auth.prototype.updateHeaders = function() {
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185 var current;
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186 current = this.element.data('annotator:headers');
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187 return this.element.data('annotator:headers', $.extend(current, {
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188 'x-annotator-auth-token': this.token
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189 }));
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190 };
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191
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192 Auth.prototype.withToken = function(callback) {
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193 if (!(callback != null)) {
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194 return;
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195 }
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196 if (this.haveValidToken()) {
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197 return callback(this._unsafeToken);
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198 } else {
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199 this.waitingForToken.push(callback);
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200 if (!this.requestInProgress) {
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201 return this.requestToken();
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202 }
3
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203 }
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204 };
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205
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206 return Auth;
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207
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208 })(Annotator.Plugin);