Initial commit (by create-cloudflare CLI)

This commit is contained in:
J-onasJones 2023-09-14 18:58:13 +02:00
commit 58a42872a0
1745 changed files with 741893 additions and 0 deletions

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export var hasFetch = isFunction(global.fetch) && isFunction(global.ReadableStream)
var _blobConstructor;
export function blobConstructor() {
if (typeof _blobConstructor !== 'undefined') {
return _blobConstructor;
}
try {
new global.Blob([new ArrayBuffer(1)])
_blobConstructor = true
} catch (e) {
_blobConstructor = false
}
return _blobConstructor
}
var xhr;
function checkTypeSupport(type) {
if (!xhr) {
xhr = new global.XMLHttpRequest()
// If location.host is empty, e.g. if this page/worker was loaded
// from a Blob, then use example.com to avoid an error
xhr.open('GET', global.location.host ? '/' : 'https://example.com')
}
try {
xhr.responseType = type
return xhr.responseType === type
} catch (e) {
return false
}
}
// For some strange reason, Safari 7.0 reports typeof global.ArrayBuffer === 'object'.
// Safari 7.1 appears to have fixed this bug.
var haveArrayBuffer = typeof global.ArrayBuffer !== 'undefined'
var haveSlice = haveArrayBuffer && isFunction(global.ArrayBuffer.prototype.slice)
export var arraybuffer = haveArrayBuffer && checkTypeSupport('arraybuffer')
// These next two tests unavoidably show warnings in Chrome. Since fetch will always
// be used if it's available, just return false for these to avoid the warnings.
export var msstream = !hasFetch && haveSlice && checkTypeSupport('ms-stream')
export var mozchunkedarraybuffer = !hasFetch && haveArrayBuffer &&
checkTypeSupport('moz-chunked-arraybuffer')
export var overrideMimeType = isFunction(xhr.overrideMimeType)
export var vbArray = isFunction(global.VBArray)
function isFunction(value) {
return typeof value === 'function'
}
xhr = null // Help gc

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import * as capability from './capability';
import {inherits} from 'util';
import {IncomingMessage, readyStates as rStates} from './response';
import {Writable} from 'stream';
import toArrayBuffer from './to-arraybuffer';
function decideMode(preferBinary, useFetch) {
if (capability.hasFetch && useFetch) {
return 'fetch'
} else if (capability.mozchunkedarraybuffer) {
return 'moz-chunked-arraybuffer'
} else if (capability.msstream) {
return 'ms-stream'
} else if (capability.arraybuffer && preferBinary) {
return 'arraybuffer'
} else if (capability.vbArray && preferBinary) {
return 'text:vbarray'
} else {
return 'text'
}
}
export default ClientRequest;
function ClientRequest(opts) {
var self = this
Writable.call(self)
self._opts = opts
self._body = []
self._headers = {}
if (opts.auth)
self.setHeader('Authorization', 'Basic ' + new Buffer(opts.auth).toString('base64'))
Object.keys(opts.headers).forEach(function(name) {
self.setHeader(name, opts.headers[name])
})
var preferBinary
var useFetch = true
if (opts.mode === 'disable-fetch') {
// If the use of XHR should be preferred and includes preserving the 'content-type' header
useFetch = false
preferBinary = true
} else if (opts.mode === 'prefer-streaming') {
// If streaming is a high priority but binary compatibility and
// the accuracy of the 'content-type' header aren't
preferBinary = false
} else if (opts.mode === 'allow-wrong-content-type') {
// If streaming is more important than preserving the 'content-type' header
preferBinary = !capability.overrideMimeType
} else if (!opts.mode || opts.mode === 'default' || opts.mode === 'prefer-fast') {
// Use binary if text streaming may corrupt data or the content-type header, or for speed
preferBinary = true
} else {
throw new Error('Invalid value for opts.mode')
}
self._mode = decideMode(preferBinary, useFetch)
self.on('finish', function() {
self._onFinish()
})
}
inherits(ClientRequest, Writable)
// Taken from http://www.w3.org/TR/XMLHttpRequest/#the-setrequestheader%28%29-method
var unsafeHeaders = [
'accept-charset',
'accept-encoding',
'access-control-request-headers',
'access-control-request-method',
'connection',
'content-length',
'cookie',
'cookie2',
'date',
'dnt',
'expect',
'host',
'keep-alive',
'origin',
'referer',
'te',
'trailer',
'transfer-encoding',
'upgrade',
'user-agent',
'via'
]
ClientRequest.prototype.setHeader = function(name, value) {
var self = this
var lowerName = name.toLowerCase()
// This check is not necessary, but it prevents warnings from browsers about setting unsafe
// headers. To be honest I'm not entirely sure hiding these warnings is a good thing, but
// http-browserify did it, so I will too.
if (unsafeHeaders.indexOf(lowerName) !== -1)
return
self._headers[lowerName] = {
name: name,
value: value
}
}
ClientRequest.prototype.getHeader = function(name) {
var self = this
return self._headers[name.toLowerCase()].value
}
ClientRequest.prototype.removeHeader = function(name) {
var self = this
delete self._headers[name.toLowerCase()]
}
ClientRequest.prototype._onFinish = function() {
var self = this
if (self._destroyed)
return
var opts = self._opts
var headersObj = self._headers
var body
if (opts.method === 'POST' || opts.method === 'PUT' || opts.method === 'PATCH') {
if (capability.blobConstructor()) {
body = new global.Blob(self._body.map(function(buffer) {
return toArrayBuffer(buffer)
}), {
type: (headersObj['content-type'] || {}).value || ''
})
} else {
// get utf8 string
body = Buffer.concat(self._body).toString()
}
}
if (self._mode === 'fetch') {
var headers = Object.keys(headersObj).map(function(name) {
return [headersObj[name].name, headersObj[name].value]
})
global.fetch(self._opts.url, {
method: self._opts.method,
headers: headers,
body: body,
mode: 'cors',
credentials: opts.withCredentials ? 'include' : 'same-origin'
}).then(function(response) {
self._fetchResponse = response
self._connect()
}, function(reason) {
self.emit('error', reason)
})
} else {
var xhr = self._xhr = new global.XMLHttpRequest()
try {
xhr.open(self._opts.method, self._opts.url, true)
} catch (err) {
process.nextTick(function() {
self.emit('error', err)
})
return
}
// Can't set responseType on really old browsers
if ('responseType' in xhr)
xhr.responseType = self._mode.split(':')[0]
if ('withCredentials' in xhr)
xhr.withCredentials = !!opts.withCredentials
if (self._mode === 'text' && 'overrideMimeType' in xhr)
xhr.overrideMimeType('text/plain; charset=x-user-defined')
Object.keys(headersObj).forEach(function(name) {
xhr.setRequestHeader(headersObj[name].name, headersObj[name].value)
})
self._response = null
xhr.onreadystatechange = function() {
switch (xhr.readyState) {
case rStates.LOADING:
case rStates.DONE:
self._onXHRProgress()
break
}
}
// Necessary for streaming in Firefox, since xhr.response is ONLY defined
// in onprogress, not in onreadystatechange with xhr.readyState = 3
if (self._mode === 'moz-chunked-arraybuffer') {
xhr.onprogress = function() {
self._onXHRProgress()
}
}
xhr.onerror = function() {
if (self._destroyed)
return
self.emit('error', new Error('XHR error'))
}
try {
xhr.send(body)
} catch (err) {
process.nextTick(function() {
self.emit('error', err)
})
return
}
}
}
/**
* Checks if xhr.status is readable and non-zero, indicating no error.
* Even though the spec says it should be available in readyState 3,
* accessing it throws an exception in IE8
*/
function statusValid(xhr) {
try {
var status = xhr.status
return (status !== null && status !== 0)
} catch (e) {
return false
}
}
ClientRequest.prototype._onXHRProgress = function() {
var self = this
if (!statusValid(self._xhr) || self._destroyed)
return
if (!self._response)
self._connect()
self._response._onXHRProgress()
}
ClientRequest.prototype._connect = function() {
var self = this
if (self._destroyed)
return
self._response = new IncomingMessage(self._xhr, self._fetchResponse, self._mode)
self.emit('response', self._response)
}
ClientRequest.prototype._write = function(chunk, encoding, cb) {
var self = this
self._body.push(chunk)
cb()
}
ClientRequest.prototype.abort = ClientRequest.prototype.destroy = function() {
var self = this
self._destroyed = true
if (self._response)
self._response._destroyed = true
if (self._xhr)
self._xhr.abort()
// Currently, there isn't a way to truly abort a fetch.
// If you like bikeshedding, see https://github.com/whatwg/fetch/issues/27
}
ClientRequest.prototype.end = function(data, encoding, cb) {
var self = this
if (typeof data === 'function') {
cb = data
data = undefined
}
Writable.prototype.end.call(self, data, encoding, cb)
}
ClientRequest.prototype.flushHeaders = function() {}
ClientRequest.prototype.setTimeout = function() {}
ClientRequest.prototype.setNoDelay = function() {}
ClientRequest.prototype.setSocketKeepAlive = function() {}

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import {overrideMimeType} from './capability';
import {inherits} from 'util';
import {Readable} from 'stream';
var rStates = {
UNSENT: 0,
OPENED: 1,
HEADERS_RECEIVED: 2,
LOADING: 3,
DONE: 4
}
export {
rStates as readyStates
};
export function IncomingMessage(xhr, response, mode) {
var self = this
Readable.call(self)
self._mode = mode
self.headers = {}
self.rawHeaders = []
self.trailers = {}
self.rawTrailers = []
// Fake the 'close' event, but only once 'end' fires
self.on('end', function() {
// The nextTick is necessary to prevent the 'request' module from causing an infinite loop
process.nextTick(function() {
self.emit('close')
})
})
var read;
if (mode === 'fetch') {
self._fetchResponse = response
self.url = response.url
self.statusCode = response.status
self.statusMessage = response.statusText
// backwards compatible version of for (<item> of <iterable>):
// for (var <item>,_i,_it = <iterable>[Symbol.iterator](); <item> = (_i = _it.next()).value,!_i.done;)
for (var header, _i, _it = response.headers[Symbol.iterator](); header = (_i = _it.next()).value, !_i.done;) {
self.headers[header[0].toLowerCase()] = header[1]
self.rawHeaders.push(header[0], header[1])
}
// TODO: this doesn't respect backpressure. Once WritableStream is available, this can be fixed
var reader = response.body.getReader()
read = function () {
reader.read().then(function(result) {
if (self._destroyed)
return
if (result.done) {
self.push(null)
return
}
self.push(new Buffer(result.value))
read()
})
}
read()
} else {
self._xhr = xhr
self._pos = 0
self.url = xhr.responseURL
self.statusCode = xhr.status
self.statusMessage = xhr.statusText
var headers = xhr.getAllResponseHeaders().split(/\r?\n/)
headers.forEach(function(header) {
var matches = header.match(/^([^:]+):\s*(.*)/)
if (matches) {
var key = matches[1].toLowerCase()
if (key === 'set-cookie') {
if (self.headers[key] === undefined) {
self.headers[key] = []
}
self.headers[key].push(matches[2])
} else if (self.headers[key] !== undefined) {
self.headers[key] += ', ' + matches[2]
} else {
self.headers[key] = matches[2]
}
self.rawHeaders.push(matches[1], matches[2])
}
})
self._charset = 'x-user-defined'
if (!overrideMimeType) {
var mimeType = self.rawHeaders['mime-type']
if (mimeType) {
var charsetMatch = mimeType.match(/;\s*charset=([^;])(;|$)/)
if (charsetMatch) {
self._charset = charsetMatch[1].toLowerCase()
}
}
if (!self._charset)
self._charset = 'utf-8' // best guess
}
}
}
inherits(IncomingMessage, Readable)
IncomingMessage.prototype._read = function() {}
IncomingMessage.prototype._onXHRProgress = function() {
var self = this
var xhr = self._xhr
var response = null
switch (self._mode) {
case 'text:vbarray': // For IE9
if (xhr.readyState !== rStates.DONE)
break
try {
// This fails in IE8
response = new global.VBArray(xhr.responseBody).toArray()
} catch (e) {
// pass
}
if (response !== null) {
self.push(new Buffer(response))
break
}
// Falls through in IE8
case 'text':
try { // This will fail when readyState = 3 in IE9. Switch mode and wait for readyState = 4
response = xhr.responseText
} catch (e) {
self._mode = 'text:vbarray'
break
}
if (response.length > self._pos) {
var newData = response.substr(self._pos)
if (self._charset === 'x-user-defined') {
var buffer = new Buffer(newData.length)
for (var i = 0; i < newData.length; i++)
buffer[i] = newData.charCodeAt(i) & 0xff
self.push(buffer)
} else {
self.push(newData, self._charset)
}
self._pos = response.length
}
break
case 'arraybuffer':
if (xhr.readyState !== rStates.DONE || !xhr.response)
break
response = xhr.response
self.push(new Buffer(new Uint8Array(response)))
break
case 'moz-chunked-arraybuffer': // take whole
response = xhr.response
if (xhr.readyState !== rStates.LOADING || !response)
break
self.push(new Buffer(new Uint8Array(response)))
break
case 'ms-stream':
response = xhr.response
if (xhr.readyState !== rStates.LOADING)
break
var reader = new global.MSStreamReader()
reader.onprogress = function() {
if (reader.result.byteLength > self._pos) {
self.push(new Buffer(new Uint8Array(reader.result.slice(self._pos))))
self._pos = reader.result.byteLength
}
}
reader.onload = function() {
self.push(null)
}
// reader.onerror = ??? // TODO: this
reader.readAsArrayBuffer(response)
break
}
// The ms-stream case handles end separately in reader.onload()
if (self._xhr.readyState === rStates.DONE && self._mode !== 'ms-stream') {
self.push(null)
}
}

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// from https://github.com/jhiesey/to-arraybuffer/blob/6502d9850e70ba7935a7df4ad86b358fc216f9f0/index.js
// MIT License
// Copyright (c) 2016 John Hiesey
import {isBuffer} from 'buffer';
export default function (buf) {
// If the buffer is backed by a Uint8Array, a faster version will work
if (buf instanceof Uint8Array) {
// If the buffer isn't a subarray, return the underlying ArrayBuffer
if (buf.byteOffset === 0 && buf.byteLength === buf.buffer.byteLength) {
return buf.buffer
} else if (typeof buf.buffer.slice === 'function') {
// Otherwise we need to get a proper copy
return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength)
}
}
if (isBuffer(buf)) {
// This is the slow version that will work with any Buffer
// implementation (even in old browsers)
var arrayCopy = new Uint8Array(buf.length)
var len = buf.length
for (var i = 0; i < len; i++) {
arrayCopy[i] = buf[i]
}
return arrayCopy.buffer
} else {
throw new Error('Argument must be a Buffer')
}
}