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