lix-website/themes/lix/assets/bootstrap/node_modules/got/index.js
2024-04-26 22:49:34 -06:00

676 lines
17 KiB
JavaScript

'use strict';
const EventEmitter = require('events');
const http = require('http');
const https = require('https');
const PassThrough = require('stream').PassThrough;
const Transform = require('stream').Transform;
const urlLib = require('url');
const fs = require('fs');
const querystring = require('querystring');
const CacheableRequest = require('cacheable-request');
const duplexer3 = require('duplexer3');
const intoStream = require('into-stream');
const is = require('@sindresorhus/is');
const getStream = require('get-stream');
const timedOut = require('timed-out');
const urlParseLax = require('url-parse-lax');
const urlToOptions = require('url-to-options');
const lowercaseKeys = require('lowercase-keys');
const decompressResponse = require('decompress-response');
const mimicResponse = require('mimic-response');
const isRetryAllowed = require('is-retry-allowed');
const isURL = require('isurl');
const PCancelable = require('p-cancelable');
const pTimeout = require('p-timeout');
const pify = require('pify');
const Buffer = require('safe-buffer').Buffer;
const pkg = require('./package.json');
const errors = require('./errors');
const getMethodRedirectCodes = new Set([300, 301, 302, 303, 304, 305, 307, 308]);
const allMethodRedirectCodes = new Set([300, 303, 307, 308]);
const isFormData = body => is.nodeStream(body) && is.function(body.getBoundary);
const getBodySize = opts => {
const body = opts.body;
if (opts.headers['content-length']) {
return Number(opts.headers['content-length']);
}
if (!body && !opts.stream) {
return 0;
}
if (is.string(body)) {
return Buffer.byteLength(body);
}
if (isFormData(body)) {
return pify(body.getLength.bind(body))();
}
if (body instanceof fs.ReadStream) {
return pify(fs.stat)(body.path).then(stat => stat.size);
}
if (is.nodeStream(body) && is.buffer(body._buffer)) {
return body._buffer.length;
}
return null;
};
function requestAsEventEmitter(opts) {
opts = opts || {};
const ee = new EventEmitter();
const requestUrl = opts.href || urlLib.resolve(urlLib.format(opts), opts.path);
const redirects = [];
const agents = is.object(opts.agent) ? opts.agent : null;
let retryCount = 0;
let redirectUrl;
let uploadBodySize;
let uploaded = 0;
const get = opts => {
if (opts.protocol !== 'http:' && opts.protocol !== 'https:') {
ee.emit('error', new got.UnsupportedProtocolError(opts));
return;
}
let fn = opts.protocol === 'https:' ? https : http;
if (agents) {
const protocolName = opts.protocol === 'https:' ? 'https' : 'http';
opts.agent = agents[protocolName] || opts.agent;
}
if (opts.useElectronNet && process.versions.electron) {
const electron = require('electron');
fn = electron.net || electron.remote.net;
}
let progressInterval;
const cacheableRequest = new CacheableRequest(fn.request, opts.cache);
const cacheReq = cacheableRequest(opts, res => {
clearInterval(progressInterval);
ee.emit('uploadProgress', {
percent: 1,
transferred: uploaded,
total: uploadBodySize
});
const statusCode = res.statusCode;
res.url = redirectUrl || requestUrl;
res.requestUrl = requestUrl;
const followRedirect = opts.followRedirect && 'location' in res.headers;
const redirectGet = followRedirect && getMethodRedirectCodes.has(statusCode);
const redirectAll = followRedirect && allMethodRedirectCodes.has(statusCode);
if (redirectAll || (redirectGet && (opts.method === 'GET' || opts.method === 'HEAD'))) {
res.resume();
if (statusCode === 303) {
// Server responded with "see other", indicating that the resource exists at another location,
// and the client should request it from that location via GET or HEAD.
opts.method = 'GET';
}
if (redirects.length >= 10) {
ee.emit('error', new got.MaxRedirectsError(statusCode, redirects, opts), null, res);
return;
}
const bufferString = Buffer.from(res.headers.location, 'binary').toString();
redirectUrl = urlLib.resolve(urlLib.format(opts), bufferString);
redirects.push(redirectUrl);
const redirectOpts = Object.assign({}, opts, urlLib.parse(redirectUrl));
ee.emit('redirect', res, redirectOpts);
get(redirectOpts);
return;
}
setImmediate(() => {
try {
getResponse(res, opts, ee, redirects);
} catch (e) {
ee.emit('error', e);
}
});
});
cacheReq.on('error', err => {
if (err instanceof CacheableRequest.RequestError) {
ee.emit('error', new got.RequestError(err, opts));
} else {
ee.emit('error', new got.CacheError(err, opts));
}
});
cacheReq.once('request', req => {
let aborted = false;
req.once('abort', _ => {
aborted = true;
});
req.once('error', err => {
clearInterval(progressInterval);
if (aborted) {
return;
}
const backoff = opts.retries(++retryCount, err);
if (backoff) {
setTimeout(get, backoff, opts);
return;
}
ee.emit('error', new got.RequestError(err, opts));
});
ee.once('request', req => {
ee.emit('uploadProgress', {
percent: 0,
transferred: 0,
total: uploadBodySize
});
const socket = req.connection;
if (socket) {
// `._connecting` was the old property which was made public in node v6.1.0
const isConnecting = socket.connecting === undefined ? socket._connecting : socket.connecting;
const onSocketConnect = () => {
const uploadEventFrequency = 150;
progressInterval = setInterval(() => {
if (socket.destroyed) {
clearInterval(progressInterval);
return;
}
const lastUploaded = uploaded;
const headersSize = req._header ? Buffer.byteLength(req._header) : 0;
uploaded = socket.bytesWritten - headersSize;
// Prevent the known issue of `bytesWritten` being larger than body size
if (uploadBodySize && uploaded > uploadBodySize) {
uploaded = uploadBodySize;
}
// Don't emit events with unchanged progress and
// prevent last event from being emitted, because
// it's emitted when `response` is emitted
if (uploaded === lastUploaded || uploaded === uploadBodySize) {
return;
}
ee.emit('uploadProgress', {
percent: uploadBodySize ? uploaded / uploadBodySize : 0,
transferred: uploaded,
total: uploadBodySize
});
}, uploadEventFrequency);
};
// Only subscribe to 'connect' event if we're actually connecting a new
// socket, otherwise if we're already connected (because this is a
// keep-alive connection) do not bother. This is important since we won't
// get a 'connect' event for an already connected socket.
if (isConnecting) {
socket.once('connect', onSocketConnect);
} else {
onSocketConnect();
}
}
});
if (opts.gotTimeout) {
clearInterval(progressInterval);
timedOut(req, opts.gotTimeout);
}
setImmediate(() => {
ee.emit('request', req);
});
});
};
setImmediate(() => {
Promise.resolve(getBodySize(opts))
.then(size => {
uploadBodySize = size;
if (
is.undefined(opts.headers['content-length']) &&
is.undefined(opts.headers['transfer-encoding']) &&
isFormData(opts.body)
) {
opts.headers['content-length'] = size;
}
get(opts);
})
.catch(err => {
ee.emit('error', err);
});
});
return ee;
}
function getResponse(res, opts, ee, redirects) {
const downloadBodySize = Number(res.headers['content-length']) || null;
let downloaded = 0;
const progressStream = new Transform({
transform(chunk, encoding, callback) {
downloaded += chunk.length;
const percent = downloadBodySize ? downloaded / downloadBodySize : 0;
// Let flush() be responsible for emitting the last event
if (percent < 1) {
ee.emit('downloadProgress', {
percent,
transferred: downloaded,
total: downloadBodySize
});
}
callback(null, chunk);
},
flush(callback) {
ee.emit('downloadProgress', {
percent: 1,
transferred: downloaded,
total: downloadBodySize
});
callback();
}
});
mimicResponse(res, progressStream);
progressStream.redirectUrls = redirects;
const response = opts.decompress === true &&
is.function(decompressResponse) &&
opts.method !== 'HEAD' ? decompressResponse(progressStream) : progressStream;
if (!opts.decompress && ['gzip', 'deflate'].indexOf(res.headers['content-encoding']) !== -1) {
opts.encoding = null;
}
ee.emit('response', response);
ee.emit('downloadProgress', {
percent: 0,
transferred: 0,
total: downloadBodySize
});
res.pipe(progressStream);
}
function asPromise(opts) {
const timeoutFn = requestPromise => opts.gotTimeout && opts.gotTimeout.request ?
pTimeout(requestPromise, opts.gotTimeout.request, new got.RequestError({message: 'Request timed out', code: 'ETIMEDOUT'}, opts)) :
requestPromise;
const proxy = new EventEmitter();
const cancelable = new PCancelable((resolve, reject, onCancel) => {
const ee = requestAsEventEmitter(opts);
let cancelOnRequest = false;
onCancel(() => {
cancelOnRequest = true;
});
ee.on('request', req => {
if (cancelOnRequest) {
req.abort();
}
onCancel(() => {
req.abort();
});
if (is.nodeStream(opts.body)) {
opts.body.pipe(req);
opts.body = undefined;
return;
}
req.end(opts.body);
});
ee.on('response', res => {
const stream = is.null(opts.encoding) ? getStream.buffer(res) : getStream(res, opts);
stream
.catch(err => reject(new got.ReadError(err, opts)))
.then(data => {
const statusCode = res.statusCode;
const limitStatusCode = opts.followRedirect ? 299 : 399;
res.body = data;
if (opts.json && res.body) {
try {
res.body = JSON.parse(res.body);
} catch (err) {
if (statusCode >= 200 && statusCode < 300) {
throw new got.ParseError(err, statusCode, opts, data);
}
}
}
if (opts.throwHttpErrors && statusCode !== 304 && (statusCode < 200 || statusCode > limitStatusCode)) {
throw new got.HTTPError(statusCode, res.statusMessage, res.headers, opts);
}
resolve(res);
})
.catch(err => {
Object.defineProperty(err, 'response', {value: res});
reject(err);
});
});
ee.once('error', reject);
ee.on('redirect', proxy.emit.bind(proxy, 'redirect'));
ee.on('uploadProgress', proxy.emit.bind(proxy, 'uploadProgress'));
ee.on('downloadProgress', proxy.emit.bind(proxy, 'downloadProgress'));
});
// Preserve backwards-compatibility
// TODO: Remove this in the next major version
Object.defineProperty(cancelable, 'canceled', {
get() {
return cancelable.isCanceled;
}
});
const promise = timeoutFn(cancelable);
promise.cancel = cancelable.cancel.bind(cancelable);
promise.on = (name, fn) => {
proxy.on(name, fn);
return promise;
};
return promise;
}
function asStream(opts) {
opts.stream = true;
const input = new PassThrough();
const output = new PassThrough();
const proxy = duplexer3(input, output);
let timeout;
if (opts.gotTimeout && opts.gotTimeout.request) {
timeout = setTimeout(() => {
proxy.emit('error', new got.RequestError({message: 'Request timed out', code: 'ETIMEDOUT'}, opts));
}, opts.gotTimeout.request);
}
if (opts.json) {
throw new Error('Got can not be used as a stream when the `json` option is used');
}
if (opts.body) {
proxy.write = () => {
throw new Error('Got\'s stream is not writable when the `body` option is used');
};
}
const ee = requestAsEventEmitter(opts);
ee.on('request', req => {
proxy.emit('request', req);
if (is.nodeStream(opts.body)) {
opts.body.pipe(req);
return;
}
if (opts.body) {
req.end(opts.body);
return;
}
if (opts.method === 'POST' || opts.method === 'PUT' || opts.method === 'PATCH') {
input.pipe(req);
return;
}
req.end();
});
ee.on('response', res => {
clearTimeout(timeout);
const statusCode = res.statusCode;
res.on('error', err => {
proxy.emit('error', new got.ReadError(err, opts));
});
res.pipe(output);
if (opts.throwHttpErrors && statusCode !== 304 && (statusCode < 200 || statusCode > 299)) {
proxy.emit('error', new got.HTTPError(statusCode, res.statusMessage, res.headers, opts), null, res);
return;
}
proxy.emit('response', res);
});
ee.on('error', proxy.emit.bind(proxy, 'error'));
ee.on('redirect', proxy.emit.bind(proxy, 'redirect'));
ee.on('uploadProgress', proxy.emit.bind(proxy, 'uploadProgress'));
ee.on('downloadProgress', proxy.emit.bind(proxy, 'downloadProgress'));
return proxy;
}
function normalizeArguments(url, opts) {
if (!is.string(url) && !is.object(url)) {
throw new TypeError(`Parameter \`url\` must be a string or object, not ${is(url)}`);
} else if (is.string(url)) {
url = url.replace(/^unix:/, 'http://$&');
try {
decodeURI(url);
} catch (err) {
throw new Error('Parameter `url` must contain valid UTF-8 character sequences');
}
url = urlParseLax(url);
if (url.auth) {
throw new Error('Basic authentication must be done with the `auth` option');
}
} else if (isURL.lenient(url)) {
url = urlToOptions(url);
}
opts = Object.assign(
{
path: '',
retries: 2,
cache: false,
decompress: true,
useElectronNet: false,
throwHttpErrors: true
},
url,
{
protocol: url.protocol || 'http:' // Override both null/undefined with default protocol
},
opts
);
const headers = lowercaseKeys(opts.headers);
for (const key of Object.keys(headers)) {
if (is.nullOrUndefined(headers[key])) {
delete headers[key];
}
}
opts.headers = Object.assign({
'user-agent': `${pkg.name}/${pkg.version} (https://github.com/sindresorhus/got)`
}, headers);
if (opts.decompress && is.undefined(opts.headers['accept-encoding'])) {
opts.headers['accept-encoding'] = 'gzip, deflate';
}
const query = opts.query;
if (query) {
if (!is.string(query)) {
opts.query = querystring.stringify(query);
}
opts.path = `${opts.path.split('?')[0]}?${opts.query}`;
delete opts.query;
}
if (opts.json && is.undefined(opts.headers.accept)) {
opts.headers.accept = 'application/json';
}
const body = opts.body;
if (is.nullOrUndefined(body)) {
opts.method = (opts.method || 'GET').toUpperCase();
} else {
const headers = opts.headers;
if (!is.nodeStream(body) && !is.string(body) && !is.buffer(body) && !(opts.form || opts.json)) {
throw new TypeError('The `body` option must be a stream.Readable, string, Buffer or plain Object');
}
const canBodyBeStringified = is.plainObject(body) || is.array(body);
if ((opts.form || opts.json) && !canBodyBeStringified) {
throw new TypeError('The `body` option must be a plain Object or Array when the `form` or `json` option is used');
}
if (isFormData(body)) {
// Special case for https://github.com/form-data/form-data
headers['content-type'] = headers['content-type'] || `multipart/form-data; boundary=${body.getBoundary()}`;
} else if (opts.form && canBodyBeStringified) {
headers['content-type'] = headers['content-type'] || 'application/x-www-form-urlencoded';
opts.body = querystring.stringify(body);
} else if (opts.json && canBodyBeStringified) {
headers['content-type'] = headers['content-type'] || 'application/json';
opts.body = JSON.stringify(body);
}
if (is.undefined(headers['content-length']) && is.undefined(headers['transfer-encoding']) && !is.nodeStream(body)) {
const length = is.string(opts.body) ? Buffer.byteLength(opts.body) : opts.body.length;
headers['content-length'] = length;
}
// Convert buffer to stream to receive upload progress events
// see https://github.com/sindresorhus/got/pull/322
if (is.buffer(body)) {
opts.body = intoStream(body);
opts.body._buffer = body;
}
opts.method = (opts.method || 'POST').toUpperCase();
}
if (opts.hostname === 'unix') {
const matches = /(.+?):(.+)/.exec(opts.path);
if (matches) {
opts.socketPath = matches[1];
opts.path = matches[2];
opts.host = null;
}
}
if (!is.function(opts.retries)) {
const retries = opts.retries;
opts.retries = (iter, err) => {
if (iter > retries || !isRetryAllowed(err)) {
return 0;
}
const noise = Math.random() * 100;
return ((1 << iter) * 1000) + noise;
};
}
if (is.undefined(opts.followRedirect)) {
opts.followRedirect = true;
}
if (opts.timeout) {
if (is.number(opts.timeout)) {
opts.gotTimeout = {request: opts.timeout};
} else {
opts.gotTimeout = opts.timeout;
}
delete opts.timeout;
}
return opts;
}
function got(url, opts) {
try {
const normalizedArgs = normalizeArguments(url, opts);
if (normalizedArgs.stream) {
return asStream(normalizedArgs);
}
return asPromise(normalizedArgs);
} catch (err) {
return Promise.reject(err);
}
}
got.stream = (url, opts) => asStream(normalizeArguments(url, opts));
const methods = [
'get',
'post',
'put',
'patch',
'head',
'delete'
];
for (const method of methods) {
got[method] = (url, opts) => got(url, Object.assign({}, opts, {method}));
got.stream[method] = (url, opts) => got.stream(url, Object.assign({}, opts, {method}));
}
Object.assign(got, errors);
module.exports = got;