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3401f26 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 | 'use strict'
/**
* @see https://developer.mozilla.org/docs/Web/HTTP/Headers
*/
const wellknownHeaderNames = /** @type {const} */ ([
'Accept',
'Accept-Encoding',
'Accept-Language',
'Accept-Ranges',
'Access-Control-Allow-Credentials',
'Access-Control-Allow-Headers',
'Access-Control-Allow-Methods',
'Access-Control-Allow-Origin',
'Access-Control-Expose-Headers',
'Access-Control-Max-Age',
'Access-Control-Request-Headers',
'Access-Control-Request-Method',
'Age',
'Allow',
'Alt-Svc',
'Alt-Used',
'Authorization',
'Cache-Control',
'Clear-Site-Data',
'Connection',
'Content-Disposition',
'Content-Encoding',
'Content-Language',
'Content-Length',
'Content-Location',
'Content-Range',
'Content-Security-Policy',
'Content-Security-Policy-Report-Only',
'Content-Type',
'Cookie',
'Cross-Origin-Embedder-Policy',
'Cross-Origin-Opener-Policy',
'Cross-Origin-Resource-Policy',
'Date',
'Device-Memory',
'Downlink',
'ECT',
'ETag',
'Expect',
'Expect-CT',
'Expires',
'Forwarded',
'From',
'Host',
'If-Match',
'If-Modified-Since',
'If-None-Match',
'If-Range',
'If-Unmodified-Since',
'Keep-Alive',
'Last-Modified',
'Link',
'Location',
'Max-Forwards',
'Origin',
'Permissions-Policy',
'Pragma',
'Proxy-Authenticate',
'Proxy-Authorization',
'RTT',
'Range',
'Referer',
'Referrer-Policy',
'Refresh',
'Retry-After',
'Sec-WebSocket-Accept',
'Sec-WebSocket-Extensions',
'Sec-WebSocket-Key',
'Sec-WebSocket-Protocol',
'Sec-WebSocket-Version',
'Server',
'Server-Timing',
'Service-Worker-Allowed',
'Service-Worker-Navigation-Preload',
'Set-Cookie',
'SourceMap',
'Strict-Transport-Security',
'Supports-Loading-Mode',
'TE',
'Timing-Allow-Origin',
'Trailer',
'Transfer-Encoding',
'Upgrade',
'Upgrade-Insecure-Requests',
'User-Agent',
'Vary',
'Via',
'WWW-Authenticate',
'X-Content-Type-Options',
'X-DNS-Prefetch-Control',
'X-Frame-Options',
'X-Permitted-Cross-Domain-Policies',
'X-Powered-By',
'X-Requested-With',
'X-XSS-Protection'
])
/** @type {Record<typeof wellknownHeaderNames[number]|Lowercase<typeof wellknownHeaderNames[number]>, string>} */
const headerNameLowerCasedRecord = {}
// Note: object prototypes should not be able to be referenced. e.g. `Object#hasOwnProperty`.
Object.setPrototypeOf(headerNameLowerCasedRecord, null)
/**
* @type {Record<Lowercase<typeof wellknownHeaderNames[number]>, Buffer>}
*/
const wellknownHeaderNameBuffers = {}
// Note: object prototypes should not be able to be referenced. e.g. `Object#hasOwnProperty`.
Object.setPrototypeOf(wellknownHeaderNameBuffers, null)
/**
* @param {string} header Lowercased header
* @returns {Buffer}
*/
function getHeaderNameAsBuffer (header) {
let buffer = wellknownHeaderNameBuffers[header]
if (buffer === undefined) {
buffer = Buffer.from(header)
}
return buffer
}
for (let i = 0; i < wellknownHeaderNames.length; ++i) {
const key = wellknownHeaderNames[i]
const lowerCasedKey = key.toLowerCase()
headerNameLowerCasedRecord[key] = headerNameLowerCasedRecord[lowerCasedKey] =
lowerCasedKey
}
module.exports = {
wellknownHeaderNames,
headerNameLowerCasedRecord,
getHeaderNameAsBuffer
}
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