1 |
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2 |
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3 |
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4 | ;
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5 | (function (global, factory) {
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6 | typeof exports === 'object' && typeof module !== 'undefined'
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7 | ? module.exports = factory()
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8 | : typeof define === 'function' && define.amd
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9 | ? define(factory) :
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10 |
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11 | (function () {
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12 |
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13 | var _Base64 = global.Base64;
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14 | var gBase64 = factory();
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15 | gBase64.noConflict = function () {
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16 | global.Base64 = _Base64;
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17 | return gBase64;
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18 | };
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19 | if (global.Meteor) {
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20 | Base64 = gBase64;
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21 | }
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22 | global.Base64 = gBase64;
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23 | })();
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24 | }((typeof self !== 'undefined' ? self
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25 | : typeof window !== 'undefined' ? window
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26 | : typeof global !== 'undefined' ? global
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27 | : this), function () {
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28 | 'use strict';
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29 | |
30 |
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31 |
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32 |
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33 |
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34 |
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35 |
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36 |
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37 |
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38 |
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39 |
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40 | var version = '3.7.2';
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41 | |
42 |
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43 |
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44 | var VERSION = version;
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45 | var _hasatob = typeof atob === 'function';
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46 | var _hasbtoa = typeof btoa === 'function';
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47 | var _hasBuffer = typeof Buffer === 'function';
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48 | var _TD = typeof TextDecoder === 'function' ? new TextDecoder() : undefined;
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49 | var _TE = typeof TextEncoder === 'function' ? new TextEncoder() : undefined;
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50 | var b64ch = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
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51 | var b64chs = Array.prototype.slice.call(b64ch);
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52 | var b64tab = (function (a) {
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53 | var tab = {};
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54 | a.forEach(function (c, i) { return tab[c] = i; });
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55 | return tab;
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56 | })(b64chs);
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57 | var b64re = /^(?:[A-Za-z\d+\/]{4})*?(?:[A-Za-z\d+\/]{2}(?:==)?|[A-Za-z\d+\/]{3}=?)?$/;
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58 | var _fromCC = String.fromCharCode.bind(String);
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59 | var _U8Afrom = typeof Uint8Array.from === 'function'
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60 | ? Uint8Array.from.bind(Uint8Array)
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61 | : function (it, fn) {
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62 | if (fn === void 0) { fn = function (x) { return x; }; }
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63 | return new Uint8Array(Array.prototype.slice.call(it, 0).map(fn));
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64 | };
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65 | var _mkUriSafe = function (src) { return src
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66 | .replace(/=/g, '').replace(/[+\/]/g, function (m0) { return m0 == '+' ? '-' : '_'; }); };
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67 | var _tidyB64 = function (s) { return s.replace(/[^A-Za-z0-9\+\/]/g, ''); };
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68 | |
69 |
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70 |
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71 | var btoaPolyfill = function (bin) {
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72 |
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73 | var u32, c0, c1, c2, asc = '';
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74 | var pad = bin.length % 3;
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75 | for (var i = 0; i < bin.length;) {
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76 | if ((c0 = bin.charCodeAt(i++)) > 255 ||
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77 | (c1 = bin.charCodeAt(i++)) > 255 ||
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78 | (c2 = bin.charCodeAt(i++)) > 255)
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79 | throw new TypeError('invalid character found');
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80 | u32 = (c0 << 16) | (c1 << 8) | c2;
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81 | asc += b64chs[u32 >> 18 & 63]
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82 | + b64chs[u32 >> 12 & 63]
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83 | + b64chs[u32 >> 6 & 63]
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84 | + b64chs[u32 & 63];
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85 | }
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86 | return pad ? asc.slice(0, pad - 3) + "===".substring(pad) : asc;
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87 | };
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88 | |
89 |
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90 |
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91 |
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92 |
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93 | var _btoa = _hasbtoa ? function (bin) { return btoa(bin); }
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94 | : _hasBuffer ? function (bin) { return Buffer.from(bin, 'binary').toString('base64'); }
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95 | : btoaPolyfill;
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96 | var _fromUint8Array = _hasBuffer
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97 | ? function (u8a) { return Buffer.from(u8a).toString('base64'); }
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98 | : function (u8a) {
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99 |
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100 | var maxargs = 0x1000;
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101 | var strs = [];
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102 | for (var i = 0, l = u8a.length; i < l; i += maxargs) {
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103 | strs.push(_fromCC.apply(null, u8a.subarray(i, i + maxargs)));
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104 | }
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105 | return _btoa(strs.join(''));
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106 | };
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107 | |
108 |
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109 |
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110 |
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111 |
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112 | var fromUint8Array = function (u8a, urlsafe) {
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113 | if (urlsafe === void 0) { urlsafe = false; }
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114 | return urlsafe ? _mkUriSafe(_fromUint8Array(u8a)) : _fromUint8Array(u8a);
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115 | };
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116 |
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117 |
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118 |
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119 | var cb_utob = function (c) {
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120 | if (c.length < 2) {
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121 | var cc = c.charCodeAt(0);
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122 | return cc < 0x80 ? c
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123 | : cc < 0x800 ? (_fromCC(0xc0 | (cc >>> 6))
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124 | + _fromCC(0x80 | (cc & 0x3f)))
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125 | : (_fromCC(0xe0 | ((cc >>> 12) & 0x0f))
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126 | + _fromCC(0x80 | ((cc >>> 6) & 0x3f))
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127 | + _fromCC(0x80 | (cc & 0x3f)));
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128 | }
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129 | else {
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130 | var cc = 0x10000
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131 | + (c.charCodeAt(0) - 0xD800) * 0x400
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132 | + (c.charCodeAt(1) - 0xDC00);
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133 | return (_fromCC(0xf0 | ((cc >>> 18) & 0x07))
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134 | + _fromCC(0x80 | ((cc >>> 12) & 0x3f))
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135 | + _fromCC(0x80 | ((cc >>> 6) & 0x3f))
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136 | + _fromCC(0x80 | (cc & 0x3f)));
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137 | }
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138 | };
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139 | var re_utob = /[\uD800-\uDBFF][\uDC00-\uDFFFF]|[^\x00-\x7F]/g;
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140 | |
141 |
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142 |
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143 |
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144 |
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145 | var utob = function (u) { return u.replace(re_utob, cb_utob); };
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146 |
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147 | var _encode = _hasBuffer
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148 | ? function (s) { return Buffer.from(s, 'utf8').toString('base64'); }
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149 | : _TE
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150 | ? function (s) { return _fromUint8Array(_TE.encode(s)); }
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151 | : function (s) { return _btoa(utob(s)); };
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152 | |
153 |
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154 |
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155 |
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156 |
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157 | var encode = function (src, urlsafe) {
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158 | if (urlsafe === void 0) { urlsafe = false; }
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159 | return urlsafe
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160 | ? _mkUriSafe(_encode(src))
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161 | : _encode(src);
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162 | };
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163 | |
164 |
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165 |
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166 |
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167 | var encodeURI = function (src) { return encode(src, true); };
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168 |
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169 |
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170 |
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171 | var re_btou = /[\xC0-\xDF][\x80-\xBF]|[\xE0-\xEF][\x80-\xBF]{2}|[\xF0-\xF7][\x80-\xBF]{3}/g;
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172 | var cb_btou = function (cccc) {
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173 | switch (cccc.length) {
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174 | case 4:
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175 | var cp = ((0x07 & cccc.charCodeAt(0)) << 18)
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176 | | ((0x3f & cccc.charCodeAt(1)) << 12)
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177 | | ((0x3f & cccc.charCodeAt(2)) << 6)
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178 | | (0x3f & cccc.charCodeAt(3)), offset = cp - 0x10000;
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179 | return (_fromCC((offset >>> 10) + 0xD800)
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180 | + _fromCC((offset & 0x3FF) + 0xDC00));
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181 | case 3:
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182 | return _fromCC(((0x0f & cccc.charCodeAt(0)) << 12)
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183 | | ((0x3f & cccc.charCodeAt(1)) << 6)
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184 | | (0x3f & cccc.charCodeAt(2)));
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185 | default:
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186 | return _fromCC(((0x1f & cccc.charCodeAt(0)) << 6)
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187 | | (0x3f & cccc.charCodeAt(1)));
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188 | }
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189 | };
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190 | |
191 |
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192 |
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193 |
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194 |
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195 | var btou = function (b) { return b.replace(re_btou, cb_btou); };
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196 | |
197 |
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198 |
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199 | var atobPolyfill = function (asc) {
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200 |
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201 | asc = asc.replace(/\s+/g, '');
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202 | if (!b64re.test(asc))
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203 | throw new TypeError('malformed base64.');
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204 | asc += '=='.slice(2 - (asc.length & 3));
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205 | var u24, bin = '', r1, r2;
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206 | for (var i = 0; i < asc.length;) {
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207 | u24 = b64tab[asc.charAt(i++)] << 18
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208 | | b64tab[asc.charAt(i++)] << 12
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209 | | (r1 = b64tab[asc.charAt(i++)]) << 6
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210 | | (r2 = b64tab[asc.charAt(i++)]);
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211 | bin += r1 === 64 ? _fromCC(u24 >> 16 & 255)
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212 | : r2 === 64 ? _fromCC(u24 >> 16 & 255, u24 >> 8 & 255)
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213 | : _fromCC(u24 >> 16 & 255, u24 >> 8 & 255, u24 & 255);
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214 | }
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215 | return bin;
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216 | };
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217 | |
218 |
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219 |
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220 |
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221 |
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222 | var _atob = _hasatob ? function (asc) { return atob(_tidyB64(asc)); }
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223 | : _hasBuffer ? function (asc) { return Buffer.from(asc, 'base64').toString('binary'); }
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224 | : atobPolyfill;
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225 |
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226 | var _toUint8Array = _hasBuffer
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227 | ? function (a) { return _U8Afrom(Buffer.from(a, 'base64')); }
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228 | : function (a) { return _U8Afrom(_atob(a), function (c) { return c.charCodeAt(0); }); };
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229 | |
230 |
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231 |
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232 | var toUint8Array = function (a) { return _toUint8Array(_unURI(a)); };
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233 |
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234 | var _decode = _hasBuffer
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235 | ? function (a) { return Buffer.from(a, 'base64').toString('utf8'); }
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236 | : _TD
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237 | ? function (a) { return _TD.decode(_toUint8Array(a)); }
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238 | : function (a) { return btou(_atob(a)); };
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239 | var _unURI = function (a) { return _tidyB64(a.replace(/[-_]/g, function (m0) { return m0 == '-' ? '+' : '/'; })); };
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240 | |
241 |
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242 |
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243 |
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244 |
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245 | var decode = function (src) { return _decode(_unURI(src)); };
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246 | |
247 |
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248 |
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249 |
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250 | var isValid = function (src) {
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251 | if (typeof src !== 'string')
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252 | return false;
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253 | var s = src.replace(/\s+/g, '').replace(/={0,2}$/, '');
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254 | return !/[^\s0-9a-zA-Z\+/]/.test(s) || !/[^\s0-9a-zA-Z\-_]/.test(s);
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255 | };
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256 |
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257 | var _noEnum = function (v) {
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258 | return {
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259 | value: v, enumerable: false, writable: true, configurable: true
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260 | };
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261 | };
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262 | |
263 |
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264 |
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265 | var extendString = function () {
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266 | var _add = function (name, body) { return Object.defineProperty(String.prototype, name, _noEnum(body)); };
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267 | _add('fromBase64', function () { return decode(this); });
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268 | _add('toBase64', function (urlsafe) { return encode(this, urlsafe); });
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269 | _add('toBase64URI', function () { return encode(this, true); });
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270 | _add('toBase64URL', function () { return encode(this, true); });
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271 | _add('toUint8Array', function () { return toUint8Array(this); });
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272 | };
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273 | |
274 |
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275 |
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276 | var extendUint8Array = function () {
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277 | var _add = function (name, body) { return Object.defineProperty(Uint8Array.prototype, name, _noEnum(body)); };
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278 | _add('toBase64', function (urlsafe) { return fromUint8Array(this, urlsafe); });
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279 | _add('toBase64URI', function () { return fromUint8Array(this, true); });
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280 | _add('toBase64URL', function () { return fromUint8Array(this, true); });
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281 | };
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282 | |
283 |
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284 |
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285 | var extendBuiltins = function () {
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286 | extendString();
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287 | extendUint8Array();
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288 | };
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289 | var gBase64 = {
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290 | version: version,
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291 | VERSION: VERSION,
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292 | atob: _atob,
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293 | atobPolyfill: atobPolyfill,
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294 | btoa: _btoa,
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295 | btoaPolyfill: btoaPolyfill,
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296 | fromBase64: decode,
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297 | toBase64: encode,
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298 | encode: encode,
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299 | encodeURI: encodeURI,
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300 | encodeURL: encodeURI,
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301 | utob: utob,
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302 | btou: btou,
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303 | decode: decode,
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304 | isValid: isValid,
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305 | fromUint8Array: fromUint8Array,
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306 | toUint8Array: toUint8Array,
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307 | extendString: extendString,
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308 | extendUint8Array: extendUint8Array,
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309 | extendBuiltins: extendBuiltins
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310 | };
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311 |
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312 |
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313 |
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314 |
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315 |
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316 | gBase64.Base64 = {};
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317 | Object.keys(gBase64).forEach(function (k) { return gBase64.Base64[k] = gBase64[k]; });
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318 | return gBase64;
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319 | }));
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