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6 |
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7 | import {types} from 'node:util';
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8 | import http from 'node:http';
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9 |
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10 |
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11 | const validateHeaderName = typeof http.validateHeaderName === 'function' ?
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12 | http.validateHeaderName :
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13 | name => {
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14 | if (!/^[\^`\-\w!#$%&'*+.|~]+$/.test(name)) {
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15 | const error = new TypeError(`Header name must be a valid HTTP token [${name}]`);
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16 | Object.defineProperty(error, 'code', {value: 'ERR_INVALID_HTTP_TOKEN'});
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17 | throw error;
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18 | }
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19 | };
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20 |
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21 |
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22 | const validateHeaderValue = typeof http.validateHeaderValue === 'function' ?
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23 | http.validateHeaderValue :
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24 | (name, value) => {
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25 | if (/[^\t\u0020-\u007E\u0080-\u00FF]/.test(value)) {
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26 | const error = new TypeError(`Invalid character in header content ["${name}"]`);
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27 | Object.defineProperty(error, 'code', {value: 'ERR_INVALID_CHAR'});
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28 | throw error;
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29 | }
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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 |
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41 |
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42 |
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43 |
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44 | export default class Headers extends URLSearchParams {
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45 | |
46 |
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47 |
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48 |
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49 |
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50 |
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51 | constructor(init) {
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52 |
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53 |
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54 | let result = [];
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55 | if (init instanceof Headers) {
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56 | const raw = init.raw();
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57 | for (const [name, values] of Object.entries(raw)) {
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58 | result.push(...values.map(value => [name, value]));
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59 | }
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60 | } else if (init == null) {
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61 |
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62 | } else if (typeof init === 'object' && !types.isBoxedPrimitive(init)) {
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63 | const method = init[Symbol.iterator];
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64 |
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65 | if (method == null) {
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66 |
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67 | result.push(...Object.entries(init));
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68 | } else {
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69 | if (typeof method !== 'function') {
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70 | throw new TypeError('Header pairs must be iterable');
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71 | }
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72 |
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73 |
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74 |
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75 | result = [...init]
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76 | .map(pair => {
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77 | if (
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78 | typeof pair !== 'object' || types.isBoxedPrimitive(pair)
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79 | ) {
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80 | throw new TypeError('Each header pair must be an iterable object');
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81 | }
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82 |
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83 | return [...pair];
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84 | }).map(pair => {
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85 | if (pair.length !== 2) {
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86 | throw new TypeError('Each header pair must be a name/value tuple');
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87 | }
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88 |
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89 | return [...pair];
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90 | });
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91 | }
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92 | } else {
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93 | throw new TypeError('Failed to construct \'Headers\': The provided value is not of type \'(sequence<sequence<ByteString>> or record<ByteString, ByteString>)');
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94 | }
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95 |
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96 |
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97 | result =
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98 | result.length > 0 ?
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99 | result.map(([name, value]) => {
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100 | validateHeaderName(name);
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101 | validateHeaderValue(name, String(value));
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102 | return [String(name).toLowerCase(), String(value)];
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103 | }) :
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104 | undefined;
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105 |
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106 | super(result);
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107 |
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108 |
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109 |
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110 | return new Proxy(this, {
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111 | get(target, p, receiver) {
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112 | switch (p) {
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113 | case 'append':
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114 | case 'set':
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115 | return (name, value) => {
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116 | validateHeaderName(name);
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117 | validateHeaderValue(name, String(value));
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118 | return URLSearchParams.prototype[p].call(
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119 | target,
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120 | String(name).toLowerCase(),
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121 | String(value)
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122 | );
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123 | };
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124 |
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125 | case 'delete':
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126 | case 'has':
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127 | case 'getAll':
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128 | return name => {
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129 | validateHeaderName(name);
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130 | return URLSearchParams.prototype[p].call(
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131 | target,
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132 | String(name).toLowerCase()
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133 | );
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134 | };
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135 |
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136 | case 'keys':
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137 | return () => {
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138 | target.sort();
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139 | return new Set(URLSearchParams.prototype.keys.call(target)).keys();
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140 | };
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141 |
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142 | default:
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143 | return Reflect.get(target, p, receiver);
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144 | }
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145 | }
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146 | });
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147 |
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148 | }
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149 |
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150 | get [Symbol.toStringTag]() {
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151 | return this.constructor.name;
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152 | }
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153 |
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154 | toString() {
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155 | return Object.prototype.toString.call(this);
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156 | }
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157 |
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158 | get(name) {
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159 | const values = this.getAll(name);
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160 | if (values.length === 0) {
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161 | return null;
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162 | }
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163 |
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164 | let value = values.join(', ');
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165 | if (/^content-encoding$/i.test(name)) {
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166 | value = value.toLowerCase();
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167 | }
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168 |
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169 | return value;
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170 | }
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171 |
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172 | forEach(callback, thisArg = undefined) {
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173 | for (const name of this.keys()) {
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174 | Reflect.apply(callback, thisArg, [this.get(name), name, this]);
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175 | }
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176 | }
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177 |
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178 | * values() {
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179 | for (const name of this.keys()) {
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180 | yield this.get(name);
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181 | }
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182 | }
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183 |
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184 | |
185 |
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186 |
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187 | * entries() {
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188 | for (const name of this.keys()) {
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189 | yield [name, this.get(name)];
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190 | }
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191 | }
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192 |
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193 | [Symbol.iterator]() {
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194 | return this.entries();
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195 | }
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196 |
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197 | |
198 |
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199 |
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200 |
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201 |
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202 | raw() {
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203 | return [...this.keys()].reduce((result, key) => {
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204 | result[key] = this.getAll(key);
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205 | return result;
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206 | }, {});
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207 | }
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208 |
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209 | |
210 |
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211 |
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212 | [Symbol.for('nodejs.util.inspect.custom')]() {
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213 | return [...this.keys()].reduce((result, key) => {
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214 | const values = this.getAll(key);
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215 |
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216 |
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217 | if (key === 'host') {
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218 | result[key] = values[0];
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219 | } else {
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220 | result[key] = values.length > 1 ? values : values[0];
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221 | }
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222 |
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223 | return result;
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224 | }, {});
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225 | }
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226 | }
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227 |
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228 |
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229 |
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230 |
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231 |
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232 | Object.defineProperties(
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233 | Headers.prototype,
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234 | ['get', 'entries', 'forEach', 'values'].reduce((result, property) => {
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235 | result[property] = {enumerable: true};
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236 | return result;
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237 | }, {})
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238 | );
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239 |
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240 |
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241 |
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242 |
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243 |
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244 |
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245 | export function fromRawHeaders(headers = []) {
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246 | return new Headers(
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247 | headers
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248 |
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249 | .reduce((result, value, index, array) => {
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250 | if (index % 2 === 0) {
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251 | result.push(array.slice(index, index + 2));
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252 | }
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253 |
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254 | return result;
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255 | }, [])
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256 | .filter(([name, value]) => {
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257 | try {
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258 | validateHeaderName(name);
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259 | validateHeaderValue(name, String(value));
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260 | return true;
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261 | } catch {
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262 | return false;
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263 | }
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264 | })
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265 |
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266 | );
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267 | }
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