1 |
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2 | var AWS;
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3 |
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4 |
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5 |
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6 |
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7 |
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8 |
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9 |
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10 |
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11 |
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12 |
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13 |
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14 |
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15 |
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16 |
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17 |
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18 | var util = {
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19 | environment: 'nodejs',
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20 | engine: function engine() {
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21 | if (util.isBrowser() && typeof navigator !== 'undefined') {
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22 | return navigator.userAgent;
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23 | } else {
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24 | var engine = process.platform + '/' + process.version;
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25 | if (process.env.AWS_EXECUTION_ENV) {
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26 | engine += ' exec-env/' + process.env.AWS_EXECUTION_ENV;
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27 | }
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28 | return engine;
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29 | }
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30 | },
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31 |
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32 | userAgent: function userAgent() {
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33 | var name = util.environment;
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34 | var agent = 'aws-sdk-' + name + '/' + require('./core').VERSION;
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35 | if (name === 'nodejs') agent += ' ' + util.engine();
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36 | return agent;
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37 | },
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38 |
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39 | uriEscape: function uriEscape(string) {
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40 | var output = encodeURIComponent(string);
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41 | output = output.replace(/[^A-Za-z0-9_.~\-%]+/g, escape);
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42 |
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43 |
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44 | output = output.replace(/[*]/g, function(ch) {
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45 | return '%' + ch.charCodeAt(0).toString(16).toUpperCase();
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46 | });
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47 |
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48 | return output;
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49 | },
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50 |
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51 | uriEscapePath: function uriEscapePath(string) {
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52 | var parts = [];
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53 | util.arrayEach(string.split('/'), function (part) {
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54 | parts.push(util.uriEscape(part));
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55 | });
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56 | return parts.join('/');
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57 | },
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58 |
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59 | urlParse: function urlParse(url) {
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60 | return util.url.parse(url);
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61 | },
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62 |
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63 | urlFormat: function urlFormat(url) {
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64 | return util.url.format(url);
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65 | },
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66 |
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67 | queryStringParse: function queryStringParse(qs) {
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68 | return util.querystring.parse(qs);
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69 | },
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70 |
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71 | queryParamsToString: function queryParamsToString(params) {
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72 | var items = [];
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73 | var escape = util.uriEscape;
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74 | var sortedKeys = Object.keys(params).sort();
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75 |
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76 | util.arrayEach(sortedKeys, function(name) {
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77 | var value = params[name];
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78 | var ename = escape(name);
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79 | var result = ename + '=';
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80 | if (Array.isArray(value)) {
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81 | var vals = [];
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82 | util.arrayEach(value, function(item) { vals.push(escape(item)); });
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83 | result = ename + '=' + vals.sort().join('&' + ename + '=');
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84 | } else if (value !== undefined && value !== null) {
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85 | result = ename + '=' + escape(value);
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86 | }
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87 | items.push(result);
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88 | });
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89 |
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90 | return items.join('&');
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91 | },
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92 |
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93 | readFileSync: function readFileSync(path) {
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94 | if (util.isBrowser()) return null;
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95 | return require('fs').readFileSync(path, 'utf-8');
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96 | },
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97 |
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98 | base64: {
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99 | encode: function encode64(string) {
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100 | if (typeof string === 'number') {
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101 | throw util.error(new Error('Cannot base64 encode number ' + string));
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102 | }
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103 | if (string === null || typeof string === 'undefined') {
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104 | return string;
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105 | }
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106 | var buf = (typeof util.Buffer.from === 'function' && util.Buffer.from !== Uint8Array.from) ? util.Buffer.from(string) : new util.Buffer(string);
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107 | return buf.toString('base64');
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108 | },
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109 |
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110 | decode: function decode64(string) {
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111 | if (typeof string === 'number') {
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112 | throw util.error(new Error('Cannot base64 decode number ' + string));
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113 | }
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114 | if (string === null || typeof string === 'undefined') {
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115 | return string;
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116 | }
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117 | return (typeof util.Buffer.from === 'function' && util.Buffer.from !== Uint8Array.from) ? util.Buffer.from(string, 'base64') : new util.Buffer(string, 'base64');
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118 | }
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119 |
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120 | },
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121 |
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122 | buffer: {
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123 | toStream: function toStream(buffer) {
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124 | if (!util.Buffer.isBuffer(buffer)) buffer = new util.Buffer(buffer);
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125 |
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126 | var readable = new (util.stream.Readable)();
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127 | var pos = 0;
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128 | readable._read = function(size) {
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129 | if (pos >= buffer.length) return readable.push(null);
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130 |
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131 | var end = pos + size;
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132 | if (end > buffer.length) end = buffer.length;
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133 | readable.push(buffer.slice(pos, end));
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134 | pos = end;
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135 | };
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136 |
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137 | return readable;
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138 | },
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139 |
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140 | |
141 |
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142 |
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143 | concat: function(buffers) {
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144 | var length = 0,
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145 | offset = 0,
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146 | buffer = null, i;
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147 |
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148 | for (i = 0; i < buffers.length; i++) {
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149 | length += buffers[i].length;
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150 | }
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151 |
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152 | buffer = new util.Buffer(length);
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153 |
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154 | for (i = 0; i < buffers.length; i++) {
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155 | buffers[i].copy(buffer, offset);
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156 | offset += buffers[i].length;
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157 | }
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158 |
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159 | return buffer;
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160 | }
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161 | },
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162 |
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163 | string: {
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164 | byteLength: function byteLength(string) {
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165 | if (string === null || string === undefined) return 0;
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166 | if (typeof string === 'string') string = new util.Buffer(string);
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167 |
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168 | if (typeof string.byteLength === 'number') {
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169 | return string.byteLength;
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170 | } else if (typeof string.length === 'number') {
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171 | return string.length;
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172 | } else if (typeof string.size === 'number') {
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173 | return string.size;
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174 | } else if (typeof string.path === 'string') {
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175 | return require('fs').lstatSync(string.path).size;
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176 | } else {
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177 | throw util.error(new Error('Cannot determine length of ' + string),
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178 | { object: string });
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179 | }
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180 | },
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181 |
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182 | upperFirst: function upperFirst(string) {
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183 | return string[0].toUpperCase() + string.substr(1);
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184 | },
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185 |
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186 | lowerFirst: function lowerFirst(string) {
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187 | return string[0].toLowerCase() + string.substr(1);
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188 | }
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189 | },
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190 |
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191 | ini: {
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192 | parse: function string(ini) {
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193 | var currentSection, map = {};
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194 | util.arrayEach(ini.split(/\r?\n/), function(line) {
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195 | line = line.split(/(^|\s)[;#]/)[0];
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196 | var section = line.match(/^\s*\[([^\[\]]+)\]\s*$/);
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197 | if (section) {
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198 | currentSection = section[1];
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199 | } else if (currentSection) {
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200 | var item = line.match(/^\s*(.+?)\s*=\s*(.+?)\s*$/);
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201 | if (item) {
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202 | map[currentSection] = map[currentSection] || {};
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203 | map[currentSection][item[1]] = item[2];
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204 | }
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205 | }
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206 | });
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207 |
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208 | return map;
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209 | }
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210 | },
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211 |
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212 | fn: {
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213 | noop: function() {},
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214 | callback: function (err) { if (err) throw err; },
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215 |
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216 | |
217 |
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218 |
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219 |
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220 |
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221 |
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222 | makeAsync: function makeAsync(fn, expectedArgs) {
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223 | if (expectedArgs && expectedArgs <= fn.length) {
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224 | return fn;
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225 | }
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226 |
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227 | return function() {
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228 | var args = Array.prototype.slice.call(arguments, 0);
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229 | var callback = args.pop();
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230 | var result = fn.apply(null, args);
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231 | callback(result);
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232 | };
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233 | }
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234 | },
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235 |
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236 | |
237 |
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238 |
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239 | date: {
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240 |
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241 | |
242 |
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243 |
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244 |
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245 |
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246 |
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247 | getDate: function getDate() {
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248 | if (!AWS) AWS = require('./core');
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249 | if (AWS.config.systemClockOffset) {
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250 | return new Date(new Date().getTime() + AWS.config.systemClockOffset);
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251 | } else {
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252 | return new Date();
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253 | }
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254 | },
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255 |
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256 | |
257 |
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258 |
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259 | iso8601: function iso8601(date) {
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260 | if (date === undefined) { date = util.date.getDate(); }
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261 | return date.toISOString().replace(/\.\d{3}Z$/, 'Z');
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262 | },
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263 |
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264 | |
265 |
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266 |
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267 | rfc822: function rfc822(date) {
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268 | if (date === undefined) { date = util.date.getDate(); }
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269 | return date.toUTCString();
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270 | },
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271 |
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272 | |
273 |
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274 |
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275 | unixTimestamp: function unixTimestamp(date) {
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276 | if (date === undefined) { date = util.date.getDate(); }
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277 | return date.getTime() / 1000;
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278 | },
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279 |
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280 | |
281 |
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282 |
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283 |
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284 | from: function format(date) {
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285 | if (typeof date === 'number') {
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286 | return new Date(date * 1000);
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287 | } else {
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288 | return new Date(date);
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289 | }
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290 | },
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291 |
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292 | |
293 |
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294 |
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295 |
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296 |
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297 |
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298 |
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299 |
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300 |
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301 |
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302 | format: function format(date, formatter) {
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303 | if (!formatter) formatter = 'iso8601';
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304 | return util.date[formatter](util.date.from(date));
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305 | },
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306 |
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307 | parseTimestamp: function parseTimestamp(value) {
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308 | if (typeof value === 'number') {
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309 | return new Date(value * 1000);
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310 | } else if (value.match(/^\d+$/)) {
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311 | return new Date(value * 1000);
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312 | } else if (value.match(/^\d{4}/)) {
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313 | return new Date(value);
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314 | } else if (value.match(/^\w{3},/)) {
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315 | return new Date(value);
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316 | } else {
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317 | throw util.error(
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318 | new Error('unhandled timestamp format: ' + value),
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319 | {code: 'TimestampParserError'});
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320 | }
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321 | }
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322 |
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323 | },
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324 |
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325 | crypto: {
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326 | crc32Table: [
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327 | 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419,
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328 | 0x706AF48F, 0xE963A535, 0x9E6495A3, 0x0EDB8832, 0x79DCB8A4,
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329 | 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07,
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330 | 0x90BF1D91, 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
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331 | 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, 0x136C9856,
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332 | 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9,
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333 | 0xFA0F3D63, 0x8D080DF5, 0x3B6E20C8, 0x4C69105E, 0xD56041E4,
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334 | 0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
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335 | 0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3,
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336 | 0x45DF5C75, 0xDCD60DCF, 0xABD13D59, 0x26D930AC, 0x51DE003A,
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337 | 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599,
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338 | 0xB8BDA50F, 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
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339 | 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, 0x76DC4190,
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340 | 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F,
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341 | 0x9FBFE4A5, 0xE8B8D433, 0x7807C9A2, 0x0F00F934, 0x9609A88E,
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342 | 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
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343 | 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED,
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344 | 0x1B01A57B, 0x8208F4C1, 0xF50FC457, 0x65B0D9C6, 0x12B7E950,
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345 | 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3,
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346 | 0xFBD44C65, 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
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347 | 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A,
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348 | 0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5,
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349 | 0xAA0A4C5F, 0xDD0D7CC9, 0x5005713C, 0x270241AA, 0xBE0B1010,
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350 | 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
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351 | 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17,
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352 | 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6,
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353 | 0x03B6E20C, 0x74B1D29A, 0xEAD54739, 0x9DD277AF, 0x04DB2615,
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354 | 0x73DC1683, 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
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355 | 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1, 0xF00F9344,
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356 | 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB,
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357 | 0x196C3671, 0x6E6B06E7, 0xFED41B76, 0x89D32BE0, 0x10DA7A5A,
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358 | 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
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359 | 0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1,
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360 | 0xA6BC5767, 0x3FB506DD, 0x48B2364B, 0xD80D2BDA, 0xAF0A1B4C,
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361 | 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF,
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362 | 0x4669BE79, 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
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363 | 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, 0xC5BA3BBE,
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364 | 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31,
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365 | 0x2CD99E8B, 0x5BDEAE1D, 0x9B64C2B0, 0xEC63F226, 0x756AA39C,
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366 | 0x026D930A, 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
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367 | 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, 0x92D28E9B,
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368 | 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, 0x86D3D2D4, 0xF1D4E242,
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369 | 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1,
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370 | 0x18B74777, 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
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371 | 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45, 0xA00AE278,
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372 | 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7,
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373 | 0x4969474D, 0x3E6E77DB, 0xAED16A4A, 0xD9D65ADC, 0x40DF0B66,
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374 | 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
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375 | 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605,
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376 | 0xCDD70693, 0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8,
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377 | 0x5D681B02, 0x2A6F2B94, 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B,
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378 | 0x2D02EF8D],
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379 |
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380 | crc32: function crc32(data) {
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381 | var tbl = util.crypto.crc32Table;
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382 | var crc = 0 ^ -1;
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383 |
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384 | if (typeof data === 'string') {
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385 | data = new util.Buffer(data);
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386 | }
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387 |
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388 | for (var i = 0; i < data.length; i++) {
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389 | var code = data.readUInt8(i);
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390 | crc = (crc >>> 8) ^ tbl[(crc ^ code) & 0xFF];
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391 | }
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392 | return (crc ^ -1) >>> 0;
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393 | },
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394 |
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395 | hmac: function hmac(key, string, digest, fn) {
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396 | if (!digest) digest = 'binary';
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397 | if (digest === 'buffer') { digest = undefined; }
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398 | if (!fn) fn = 'sha256';
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399 | if (typeof string === 'string') string = new util.Buffer(string);
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400 | return util.crypto.lib.createHmac(fn, key).update(string).digest(digest);
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401 | },
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402 |
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403 | md5: function md5(data, digest, callback) {
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404 | return util.crypto.hash('md5', data, digest, callback);
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405 | },
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406 |
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407 | sha256: function sha256(data, digest, callback) {
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408 | return util.crypto.hash('sha256', data, digest, callback);
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409 | },
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410 |
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411 | hash: function(algorithm, data, digest, callback) {
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412 | var hash = util.crypto.createHash(algorithm);
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413 | if (!digest) { digest = 'binary'; }
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414 | if (digest === 'buffer') { digest = undefined; }
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415 | if (typeof data === 'string') data = new util.Buffer(data);
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416 | var sliceFn = util.arraySliceFn(data);
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417 | var isBuffer = util.Buffer.isBuffer(data);
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418 |
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419 | if (util.isBrowser() && typeof ArrayBuffer !== 'undefined' && data && data.buffer instanceof ArrayBuffer) isBuffer = true;
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420 |
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421 | if (callback && typeof data === 'object' &&
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422 | typeof data.on === 'function' && !isBuffer) {
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423 | data.on('data', function(chunk) { hash.update(chunk); });
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424 | data.on('error', function(err) { callback(err); });
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425 | data.on('end', function() { callback(null, hash.digest(digest)); });
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426 | } else if (callback && sliceFn && !isBuffer &&
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427 | typeof FileReader !== 'undefined') {
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428 |
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429 | var index = 0, size = 1024 * 512;
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430 | var reader = new FileReader();
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431 | reader.onerror = function() {
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432 | callback(new Error('Failed to read data.'));
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433 | };
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434 | reader.onload = function() {
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435 | var buf = new util.Buffer(new Uint8Array(reader.result));
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436 | hash.update(buf);
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437 | index += buf.length;
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438 | reader._continueReading();
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439 | };
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440 | reader._continueReading = function() {
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441 | if (index >= data.size) {
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442 | callback(null, hash.digest(digest));
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443 | return;
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444 | }
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445 |
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446 | var back = index + size;
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447 | if (back > data.size) back = data.size;
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448 | reader.readAsArrayBuffer(sliceFn.call(data, index, back));
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449 | };
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450 |
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451 | reader._continueReading();
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452 | } else {
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453 | if (util.isBrowser() && typeof data === 'object' && !isBuffer) {
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454 | data = new util.Buffer(new Uint8Array(data));
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455 | }
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456 | var out = hash.update(data).digest(digest);
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457 | if (callback) callback(null, out);
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458 | return out;
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459 | }
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460 | },
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461 |
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462 | toHex: function toHex(data) {
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463 | var out = [];
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464 | for (var i = 0; i < data.length; i++) {
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465 | out.push(('0' + data.charCodeAt(i).toString(16)).substr(-2, 2));
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466 | }
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467 | return out.join('');
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468 | },
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469 |
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470 | createHash: function createHash(algorithm) {
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471 | return util.crypto.lib.createHash(algorithm);
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472 | }
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473 |
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474 | },
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475 |
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476 |
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477 |
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478 |
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479 | abort: {},
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480 |
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481 | each: function each(object, iterFunction) {
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482 | for (var key in object) {
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483 | if (Object.prototype.hasOwnProperty.call(object, key)) {
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484 | var ret = iterFunction.call(this, key, object[key]);
|
485 | if (ret === util.abort) break;
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486 | }
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487 | }
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488 | },
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489 |
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490 | arrayEach: function arrayEach(array, iterFunction) {
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491 | for (var idx in array) {
|
492 | if (Object.prototype.hasOwnProperty.call(array, idx)) {
|
493 | var ret = iterFunction.call(this, array[idx], parseInt(idx, 10));
|
494 | if (ret === util.abort) break;
|
495 | }
|
496 | }
|
497 | },
|
498 |
|
499 | update: function update(obj1, obj2) {
|
500 | util.each(obj2, function iterator(key, item) {
|
501 | obj1[key] = item;
|
502 | });
|
503 | return obj1;
|
504 | },
|
505 |
|
506 | merge: function merge(obj1, obj2) {
|
507 | return util.update(util.copy(obj1), obj2);
|
508 | },
|
509 |
|
510 | copy: function copy(object) {
|
511 | if (object === null || object === undefined) return object;
|
512 | var dupe = {};
|
513 |
|
514 | for (var key in object) {
|
515 | dupe[key] = object[key];
|
516 | }
|
517 | return dupe;
|
518 | },
|
519 |
|
520 | isEmpty: function isEmpty(obj) {
|
521 | for (var prop in obj) {
|
522 | if (Object.prototype.hasOwnProperty.call(obj, prop)) {
|
523 | return false;
|
524 | }
|
525 | }
|
526 | return true;
|
527 | },
|
528 |
|
529 | arraySliceFn: function arraySliceFn(obj) {
|
530 | var fn = obj.slice || obj.webkitSlice || obj.mozSlice;
|
531 | return typeof fn === 'function' ? fn : null;
|
532 | },
|
533 |
|
534 | isType: function isType(obj, type) {
|
535 |
|
536 | if (typeof type === 'function') type = util.typeName(type);
|
537 | return Object.prototype.toString.call(obj) === '[object ' + type + ']';
|
538 | },
|
539 |
|
540 | typeName: function typeName(type) {
|
541 | if (Object.prototype.hasOwnProperty.call(type, 'name')) return type.name;
|
542 | var str = type.toString();
|
543 | var match = str.match(/^\s*function (.+)\(/);
|
544 | return match ? match[1] : str;
|
545 | },
|
546 |
|
547 | error: function error(err, options) {
|
548 | var originalError = null;
|
549 | if (typeof err.message === 'string' && err.message !== '') {
|
550 | if (typeof options === 'string' || (options && options.message)) {
|
551 | originalError = util.copy(err);
|
552 | originalError.message = err.message;
|
553 | }
|
554 | }
|
555 | err.message = err.message || null;
|
556 |
|
557 | if (typeof options === 'string') {
|
558 | err.message = options;
|
559 | } else if (typeof options === 'object' && options !== null) {
|
560 | util.update(err, options);
|
561 | if (options.message)
|
562 | err.message = options.message;
|
563 | if (options.code || options.name)
|
564 | err.code = options.code || options.name;
|
565 | if (options.stack)
|
566 | err.stack = options.stack;
|
567 | }
|
568 |
|
569 | if (typeof Object.defineProperty === 'function') {
|
570 | Object.defineProperty(err, 'name', {writable: true, enumerable: false});
|
571 | Object.defineProperty(err, 'message', {enumerable: true});
|
572 | }
|
573 |
|
574 | err.name = options && options.name || err.name || err.code || 'Error';
|
575 | err.time = new Date();
|
576 |
|
577 | if (originalError) err.originalError = originalError;
|
578 |
|
579 | return err;
|
580 | },
|
581 |
|
582 | |
583 |
|
584 |
|
585 | inherit: function inherit(klass, features) {
|
586 | var newObject = null;
|
587 | if (features === undefined) {
|
588 | features = klass;
|
589 | klass = Object;
|
590 | newObject = {};
|
591 | } else {
|
592 | var ctor = function ConstructorWrapper() {};
|
593 | ctor.prototype = klass.prototype;
|
594 | newObject = new ctor();
|
595 | }
|
596 |
|
597 |
|
598 | if (features.constructor === Object) {
|
599 | features.constructor = function() {
|
600 | if (klass !== Object) {
|
601 | return klass.apply(this, arguments);
|
602 | }
|
603 | };
|
604 | }
|
605 |
|
606 | features.constructor.prototype = newObject;
|
607 | util.update(features.constructor.prototype, features);
|
608 | features.constructor.__super__ = klass;
|
609 | return features.constructor;
|
610 | },
|
611 |
|
612 | |
613 |
|
614 |
|
615 | mixin: function mixin() {
|
616 | var klass = arguments[0];
|
617 | for (var i = 1; i < arguments.length; i++) {
|
618 |
|
619 | for (var prop in arguments[i].prototype) {
|
620 | var fn = arguments[i].prototype[prop];
|
621 | if (prop !== 'constructor') {
|
622 | klass.prototype[prop] = fn;
|
623 | }
|
624 | }
|
625 | }
|
626 | return klass;
|
627 | },
|
628 |
|
629 | |
630 |
|
631 |
|
632 | hideProperties: function hideProperties(obj, props) {
|
633 | if (typeof Object.defineProperty !== 'function') return;
|
634 |
|
635 | util.arrayEach(props, function (key) {
|
636 | Object.defineProperty(obj, key, {
|
637 | enumerable: false, writable: true, configurable: true });
|
638 | });
|
639 | },
|
640 |
|
641 | |
642 |
|
643 |
|
644 | property: function property(obj, name, value, enumerable, isValue) {
|
645 | var opts = {
|
646 | configurable: true,
|
647 | enumerable: enumerable !== undefined ? enumerable : true
|
648 | };
|
649 | if (typeof value === 'function' && !isValue) {
|
650 | opts.get = value;
|
651 | }
|
652 | else {
|
653 | opts.value = value; opts.writable = true;
|
654 | }
|
655 |
|
656 | Object.defineProperty(obj, name, opts);
|
657 | },
|
658 |
|
659 | |
660 |
|
661 |
|
662 | memoizedProperty: function memoizedProperty(obj, name, get, enumerable) {
|
663 | var cachedValue = null;
|
664 |
|
665 |
|
666 | util.property(obj, name, function() {
|
667 | if (cachedValue === null) {
|
668 | cachedValue = get();
|
669 | }
|
670 | return cachedValue;
|
671 | }, enumerable);
|
672 | },
|
673 |
|
674 | /**
|
675 | * TODO Remove in major version revision
|
676 | * This backfill populates response data without the
|
677 | * top-level payload name.
|
678 | *
|
679 | * @api private
|
680 | */
|
681 | hoistPayloadMember: function hoistPayloadMember(resp) {
|
682 | var req = resp.request;
|
683 | var operationName = req.operation;
|
684 | var operation = req.service.api.operations[operationName];
|
685 | var output = operation.output;
|
686 | if (output.payload && !operation.hasEventOutput) {
|
687 | var payloadMember = output.members[output.payload];
|
688 | var responsePayload = resp.data[output.payload];
|
689 | if (payloadMember.type === 'structure') {
|
690 | util.each(responsePayload, function(key, value) {
|
691 | util.property(resp.data, key, value, false);
|
692 | });
|
693 | }
|
694 | }
|
695 | },
|
696 |
|
697 | |
698 |
|
699 |
|
700 |
|
701 |
|
702 | computeSha256: function computeSha256(body, done) {
|
703 | if (util.isNode()) {
|
704 | var Stream = util.stream.Stream;
|
705 | var fs = require('fs');
|
706 | if (body instanceof Stream) {
|
707 | if (typeof body.path === 'string') {
|
708 | var settings = {};
|
709 | if (typeof body.start === 'number') {
|
710 | settings.start = body.start;
|
711 | }
|
712 | if (typeof body.end === 'number') {
|
713 | settings.end = body.end;
|
714 | }
|
715 | body = fs.createReadStream(body.path, settings);
|
716 | } else {
|
717 | return done(new Error('Non-file stream objects are ' +
|
718 | 'not supported with SigV4'));
|
719 | }
|
720 | }
|
721 | }
|
722 |
|
723 | util.crypto.sha256(body, 'hex', function(err, sha) {
|
724 | if (err) done(err);
|
725 | else done(null, sha);
|
726 | });
|
727 | },
|
728 |
|
729 | |
730 |
|
731 |
|
732 | isClockSkewed: function isClockSkewed(serverTime) {
|
733 | if (serverTime) {
|
734 | util.property(AWS.config, 'isClockSkewed',
|
735 | Math.abs(new Date().getTime() - serverTime) >= 300000, false);
|
736 | return AWS.config.isClockSkewed;
|
737 | }
|
738 | },
|
739 |
|
740 | applyClockOffset: function applyClockOffset(serverTime) {
|
741 | if (serverTime)
|
742 | AWS.config.systemClockOffset = serverTime - new Date().getTime();
|
743 | },
|
744 |
|
745 | |
746 |
|
747 |
|
748 | extractRequestId: function extractRequestId(resp) {
|
749 | var requestId = resp.httpResponse.headers['x-amz-request-id'] ||
|
750 | resp.httpResponse.headers['x-amzn-requestid'];
|
751 |
|
752 | if (!requestId && resp.data && resp.data.ResponseMetadata) {
|
753 | requestId = resp.data.ResponseMetadata.RequestId;
|
754 | }
|
755 |
|
756 | if (requestId) {
|
757 | resp.requestId = requestId;
|
758 | }
|
759 |
|
760 | if (resp.error) {
|
761 | resp.error.requestId = requestId;
|
762 | }
|
763 | },
|
764 |
|
765 | |
766 |
|
767 |
|
768 | addPromises: function addPromises(constructors, PromiseDependency) {
|
769 | var deletePromises = false;
|
770 | if (PromiseDependency === undefined && AWS && AWS.config) {
|
771 | PromiseDependency = AWS.config.getPromisesDependency();
|
772 | }
|
773 | if (PromiseDependency === undefined && typeof Promise !== 'undefined') {
|
774 | PromiseDependency = Promise;
|
775 | }
|
776 | if (typeof PromiseDependency !== 'function') deletePromises = true;
|
777 | if (!Array.isArray(constructors)) constructors = [constructors];
|
778 |
|
779 | for (var ind = 0; ind < constructors.length; ind++) {
|
780 | var constructor = constructors[ind];
|
781 | if (deletePromises) {
|
782 | if (constructor.deletePromisesFromClass) {
|
783 | constructor.deletePromisesFromClass();
|
784 | }
|
785 | } else if (constructor.addPromisesToClass) {
|
786 | constructor.addPromisesToClass(PromiseDependency);
|
787 | }
|
788 | }
|
789 | },
|
790 |
|
791 | /**
|
792 | * @api private
|
793 | */
|
794 | promisifyMethod: function promisifyMethod(methodName, PromiseDependency) {
|
795 | return function promise() {
|
796 | var self = this;
|
797 | return new PromiseDependency(function(resolve, reject) {
|
798 | self[methodName](function(err, data) {
|
799 | if (err) {
|
800 | reject(err);
|
801 | } else {
|
802 | resolve(data);
|
803 | }
|
804 | });
|
805 | });
|
806 | };
|
807 | },
|
808 |
|
809 | |
810 |
|
811 |
|
812 | isDualstackAvailable: function isDualstackAvailable(service) {
|
813 | if (!service) return false;
|
814 | var metadata = require('../apis/metadata.json');
|
815 | if (typeof service !== 'string') service = service.serviceIdentifier;
|
816 | if (typeof service !== 'string' || !metadata.hasOwnProperty(service)) return false;
|
817 | return !!metadata[service].dualstackAvailable;
|
818 | },
|
819 |
|
820 | |
821 |
|
822 |
|
823 | calculateRetryDelay: function calculateRetryDelay(retryCount, retryDelayOptions) {
|
824 | if (!retryDelayOptions) retryDelayOptions = {};
|
825 | var customBackoff = retryDelayOptions.customBackoff || null;
|
826 | if (typeof customBackoff === 'function') {
|
827 | return customBackoff(retryCount);
|
828 | }
|
829 | var base = typeof retryDelayOptions.base === 'number' ? retryDelayOptions.base : 100;
|
830 | var delay = Math.random() * (Math.pow(2, retryCount) * base);
|
831 | return delay;
|
832 | },
|
833 |
|
834 | |
835 |
|
836 |
|
837 | handleRequestWithRetries: function handleRequestWithRetries(httpRequest, options, cb) {
|
838 | if (!options) options = {};
|
839 | var http = AWS.HttpClient.getInstance();
|
840 | var httpOptions = options.httpOptions || {};
|
841 | var retryCount = 0;
|
842 |
|
843 | var errCallback = function(err) {
|
844 | var maxRetries = options.maxRetries || 0;
|
845 | if (err && err.code === 'TimeoutError') err.retryable = true;
|
846 | if (err && err.retryable && retryCount < maxRetries) {
|
847 | retryCount++;
|
848 | var delay = util.calculateRetryDelay(retryCount, options.retryDelayOptions);
|
849 | setTimeout(sendRequest, delay + (err.retryAfter || 0));
|
850 | } else {
|
851 | cb(err);
|
852 | }
|
853 | };
|
854 |
|
855 | var sendRequest = function() {
|
856 | var data = '';
|
857 | http.handleRequest(httpRequest, httpOptions, function(httpResponse) {
|
858 | httpResponse.on('data', function(chunk) { data += chunk.toString(); });
|
859 | httpResponse.on('end', function() {
|
860 | var statusCode = httpResponse.statusCode;
|
861 | if (statusCode < 300) {
|
862 | cb(null, data);
|
863 | } else {
|
864 | var retryAfter = parseInt(httpResponse.headers['retry-after'], 10) * 1000 || 0;
|
865 | var err = util.error(new Error(),
|
866 | { retryable: statusCode >= 500 || statusCode === 429 }
|
867 | );
|
868 | if (retryAfter && err.retryable) err.retryAfter = retryAfter;
|
869 | errCallback(err);
|
870 | }
|
871 | });
|
872 | }, errCallback);
|
873 | };
|
874 |
|
875 | AWS.util.defer(sendRequest);
|
876 | },
|
877 |
|
878 | |
879 |
|
880 |
|
881 | uuid: {
|
882 | v4: function uuidV4() {
|
883 | return require('uuid').v4();
|
884 | }
|
885 | },
|
886 |
|
887 | |
888 |
|
889 |
|
890 | convertPayloadToString: function convertPayloadToString(resp) {
|
891 | var req = resp.request;
|
892 | var operation = req.operation;
|
893 | var rules = req.service.api.operations[operation].output || {};
|
894 | if (rules.payload && resp.data[rules.payload]) {
|
895 | resp.data[rules.payload] = resp.data[rules.payload].toString();
|
896 | }
|
897 | },
|
898 |
|
899 | |
900 |
|
901 |
|
902 | defer: function defer(callback) {
|
903 | if (typeof process === 'object' && typeof process.nextTick === 'function') {
|
904 | process.nextTick(callback);
|
905 | } else if (typeof setImmediate === 'function') {
|
906 | setImmediate(callback);
|
907 | } else {
|
908 | setTimeout(callback, 0);
|
909 | }
|
910 | },
|
911 |
|
912 | |
913 |
|
914 |
|
915 | defaultProfile: 'default',
|
916 |
|
917 | |
918 |
|
919 |
|
920 | configOptInEnv: 'AWS_SDK_LOAD_CONFIG',
|
921 |
|
922 | |
923 |
|
924 |
|
925 | sharedCredentialsFileEnv: 'AWS_SHARED_CREDENTIALS_FILE',
|
926 |
|
927 | |
928 |
|
929 |
|
930 | sharedConfigFileEnv: 'AWS_CONFIG_FILE',
|
931 |
|
932 | |
933 |
|
934 |
|
935 | imdsDisabledEnv: 'AWS_EC2_METADATA_DISABLED'
|
936 | };
|
937 |
|
938 |
|
939 |
|
940 |
|
941 | module.exports = util;
|