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'use strict'
const { MessageChannel, receiveMessageOnPort } = require('worker_threads')
const corsSafeListedMethods = ['GET', 'HEAD', 'POST']
const corsSafeListedMethodsSet = new Set(corsSafeListedMethods)
const nullBodyStatus = [101, 204, 205, 304]
const redirectStatus = [301, 302, 303, 307, 308]
const redirectStatusSet = new Set(redirectStatus)
// https://fetch.spec.whatwg.org/#block-bad-port
const badPorts = [
'1', '7', '9', '11', '13', '15', '17', '19', '20', '21', '22', '23', '25', '37', '42', '43', '53', '69', '77', '79',
'87', '95', '101', '102', '103', '104', '109', '110', '111', '113', '115', '117', '119', '123', '135', '137',
'139', '143', '161', '179', '389', '427', '465', '512', '513', '514', '515', '526', '530', '531', '532',
'540', '548', '554', '556', '563', '587', '601', '636', '989', '990', '993', '995', '1719', '1720', '1723',
'2049', '3659', '4045', '5060', '5061', '6000', '6566', '6665', '6666', '6667', '6668', '6669', '6697',
'10080'
]
const badPortsSet = new Set(badPorts)
// https://w3c.github.io/webappsec-referrer-policy/#referrer-policies
const referrerPolicy = [
'',
'no-referrer',
'no-referrer-when-downgrade',
'same-origin',
'origin',
'strict-origin',
'origin-when-cross-origin',
'strict-origin-when-cross-origin',
'unsafe-url'
]
const referrerPolicySet = new Set(referrerPolicy)
const requestRedirect = ['follow', 'manual', 'error']
const safeMethods = ['GET', 'HEAD', 'OPTIONS', 'TRACE']
const safeMethodsSet = new Set(safeMethods)
const requestMode = ['navigate', 'same-origin', 'no-cors', 'cors']
const requestCredentials = ['omit', 'same-origin', 'include']
const requestCache = [
'default',
'no-store',
'reload',
'no-cache',
'force-cache',
'only-if-cached'
]
// https://fetch.spec.whatwg.org/#request-body-header-name
const requestBodyHeader = [
'content-encoding',
'content-language',
'content-location',
'content-type',
// See https://github.com/nodejs/undici/issues/2021
// 'Content-Length' is a forbidden header name, which is typically
// removed in the Headers implementation. However, undici doesn't
// filter out headers, so we add it here.
'content-length'
]
// https://fetch.spec.whatwg.org/#enumdef-requestduplex
const requestDuplex = [
'half'
]
// http://fetch.spec.whatwg.org/#forbidden-method
const forbiddenMethods = ['CONNECT', 'TRACE', 'TRACK']
const forbiddenMethodsSet = new Set(forbiddenMethods)
const subresource = [
'audio',
'audioworklet',
'font',
'image',
'manifest',
'paintworklet',
'script',
'style',
'track',
'video',
'xslt',
''
]
const subresourceSet = new Set(subresource)
/** @type {globalThis['DOMException']} */
const DOMException = globalThis.DOMException ?? (() => {
// DOMException was only made a global in Node v17.0.0,
// but fetch supports >= v16.8.
try {
atob('~')
} catch (err) {
return Object.getPrototypeOf(err).constructor
}
})()
let channel
/** @type {globalThis['structuredClone']} */
const structuredClone =
globalThis.structuredClone ??
// https://github.com/nodejs/node/blob/b27ae24dcc4251bad726d9d84baf678d1f707fed/lib/internal/structured_clone.js
// structuredClone was added in v17.0.0, but fetch supports v16.8
function structuredClone (value, options = undefined) {
if (arguments.length === 0) {
throw new TypeError('missing argument')
}
if (!channel) {
channel = new MessageChannel()
}
channel.port1.unref()
channel.port2.unref()
channel.port1.postMessage(value, options?.transfer)
return receiveMessageOnPort(channel.port2).message
}
module.exports = {
DOMException,
structuredClone,
subresource,
forbiddenMethods,
requestBodyHeader,
referrerPolicy,
requestRedirect,
requestMode,
requestCredentials,
requestCache,
redirectStatus,
corsSafeListedMethods,
nullBodyStatus,
safeMethods,
badPorts,
requestDuplex,
subresourceSet,
badPortsSet,
redirectStatusSet,
corsSafeListedMethodsSet,
safeMethodsSet,
forbiddenMethodsSet,
referrerPolicySet
}
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