1 | "use strict";
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2 |
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3 | var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
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4 |
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5 | Object.defineProperty(exports, "__esModule", {
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6 | value: true
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7 | });
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8 | exports.getImage = exports.getArrayBuffer = exports.getJSON = void 0;
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9 |
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10 | var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
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11 |
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12 | var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
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13 |
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14 | var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
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15 |
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16 | var _possibleConstructorReturn2 = _interopRequireDefault(require("@babel/runtime/helpers/possibleConstructorReturn"));
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17 |
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18 | var _getPrototypeOf2 = _interopRequireDefault(require("@babel/runtime/helpers/getPrototypeOf"));
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19 |
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20 | var _wrapNativeSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/wrapNativeSuper"));
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21 |
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22 | function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = (0, _getPrototypeOf2.default)(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2.default)(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2.default)(this, result); }; }
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23 |
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24 | function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
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25 |
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26 | var AJAXError = function (_Error) {
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27 | (0, _inherits2.default)(AJAXError, _Error);
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28 |
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29 | var _super = _createSuper(AJAXError);
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30 |
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31 | function AJAXError(message, status, url) {
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32 | var _this;
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33 |
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34 | (0, _classCallCheck2.default)(this, AJAXError);
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35 | _this = _super.call(this, message);
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36 | _this.status = void 0;
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37 | _this.url = void 0;
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38 | _this.status = status;
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39 | _this.url = url;
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40 | _this.name = _this.constructor.name;
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41 | _this.message = message;
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42 | return _this;
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43 | }
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44 |
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45 | (0, _createClass2.default)(AJAXError, [{
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46 | key: "toString",
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47 | value: function toString() {
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48 | return "".concat(this.name, ": ").concat(this.message, " (").concat(this.status, "): ").concat(this.url);
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49 | }
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50 | }]);
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51 | return AJAXError;
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52 | }((0, _wrapNativeSuper2.default)(Error));
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53 |
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54 | function makeRequest(requestParameters) {
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55 | var xhr = new XMLHttpRequest();
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56 | xhr.open('GET', requestParameters.url, true);
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57 |
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58 | for (var k in requestParameters.headers) {
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59 | if (requestParameters.headers.hasOwnProperty(k)) {
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60 | xhr.setRequestHeader(k, requestParameters.headers[k]);
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61 | }
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62 | }
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63 |
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64 | xhr.withCredentials = requestParameters.credentials === 'include';
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65 | return xhr;
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66 | }
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67 |
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68 | var getJSON = function getJSON(requestParameters, callback) {
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69 | var xhr = makeRequest(requestParameters);
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70 | xhr.setRequestHeader('Accept', 'application/json');
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71 |
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72 | xhr.onerror = function () {
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73 | callback(new Error(xhr.statusText));
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74 | };
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75 |
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76 | xhr.onload = function () {
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77 | if (xhr.status >= 200 && xhr.status < 300 && xhr.response) {
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78 | var data;
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79 |
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80 | try {
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81 | data = JSON.parse(xhr.response);
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82 | } catch (err) {
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83 | return callback(err);
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84 | }
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85 |
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86 | callback(null, data);
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87 | } else {
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88 | if (xhr.status === 401) {
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89 | callback(new AJAXError("".concat(xhr.statusText), xhr.status, requestParameters.url));
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90 | } else {
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91 | callback(new AJAXError(xhr.statusText, xhr.status, requestParameters.url));
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92 | }
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93 | }
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94 | };
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95 |
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96 | xhr.send();
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97 | return xhr;
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98 | };
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99 |
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100 | exports.getJSON = getJSON;
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101 |
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102 | var getArrayBuffer = function getArrayBuffer(requestParameters, callback) {
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103 | var xhr = makeRequest(requestParameters);
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104 | xhr.responseType = 'arraybuffer';
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105 |
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106 | xhr.onerror = function () {
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107 | callback(new Error(xhr.statusText));
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108 | };
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109 |
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110 | xhr.onload = function () {
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111 | var response = xhr.response;
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112 |
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113 | if (response.byteLength === 0 && xhr.status === 200) {
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114 | return callback(new Error('http status 200 returned without content.'));
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115 | }
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116 |
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117 | if (xhr.status >= 200 && xhr.status < 300 && xhr.response) {
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118 | callback(null, {
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119 | data: response,
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120 | cacheControl: xhr.getResponseHeader('Cache-Control'),
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121 | expires: xhr.getResponseHeader('Expires')
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122 | });
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123 | } else {
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124 | callback(new AJAXError(xhr.statusText, xhr.status, requestParameters.url));
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125 | }
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126 | };
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127 |
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128 | xhr.send();
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129 | return xhr;
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130 | };
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131 |
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132 | exports.getArrayBuffer = getArrayBuffer;
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133 |
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134 | function sameOrigin(url) {
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135 | var a = window.document.createElement('a');
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136 | a.href = url;
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137 | return a.protocol === window.document.location.protocol && a.host === window.document.location.host;
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138 | }
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139 |
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140 | var transparentPngUrl = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAC0lEQVQYV2NgAAIAAAUAAarVyFEAAAAASUVORK5CYII=';
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141 |
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142 | var getImage = function getImage(requestParameters, callback) {
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143 | return getArrayBuffer(requestParameters, function (err, imgData) {
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144 | if (err) {
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145 | callback(err);
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146 | } else if (imgData) {
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147 | var img = new window.Image();
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148 | img.crossOrigin = 'anonymous';
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149 | var URL = window.URL || window.webkitURL;
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150 |
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151 | img.onload = function () {
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152 | callback(null, img);
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153 | URL.revokeObjectURL(img.src);
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154 | };
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155 |
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156 | var blob = new window.Blob([new Uint8Array(imgData.data)], {
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157 | type: 'image/png'
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158 | });
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159 | img.src = imgData.data.byteLength ? URL.createObjectURL(blob) : transparentPngUrl;
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160 | }
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161 | });
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162 | };
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163 |
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164 | exports.getImage = getImage;
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165 |
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