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148 lines
5.9 KiB
148 lines
5.9 KiB
"use strict"; |
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) { |
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if (k2 === undefined) k2 = k; |
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var desc = Object.getOwnPropertyDescriptor(m, k); |
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if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) { |
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desc = { enumerable: true, get: function() { return m[k]; } }; |
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} |
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Object.defineProperty(o, k2, desc); |
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}) : (function(o, m, k, k2) { |
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if (k2 === undefined) k2 = k; |
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o[k2] = m[k]; |
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})); |
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) { |
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Object.defineProperty(o, "default", { enumerable: true, value: v }); |
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}) : function(o, v) { |
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o["default"] = v; |
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}); |
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var __importStar = (this && this.__importStar) || function (mod) { |
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if (mod && mod.__esModule) return mod; |
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var result = {}; |
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if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k); |
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__setModuleDefault(result, mod); |
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return result; |
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}; |
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var __importDefault = (this && this.__importDefault) || function (mod) { |
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return (mod && mod.__esModule) ? mod : { "default": mod }; |
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}; |
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Object.defineProperty(exports, "__esModule", { value: true }); |
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exports.HttpProxyAgent = void 0; |
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const net = __importStar(require("net")); |
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const tls = __importStar(require("tls")); |
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const debug_1 = __importDefault(require("debug")); |
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const events_1 = require("events"); |
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const agent_base_1 = require("agent-base"); |
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const url_1 = require("url"); |
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const debug = (0, debug_1.default)('http-proxy-agent'); |
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/** |
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* The `HttpProxyAgent` implements an HTTP Agent subclass that connects |
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* to the specified "HTTP proxy server" in order to proxy HTTP requests. |
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*/ |
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class HttpProxyAgent extends agent_base_1.Agent { |
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constructor(proxy, opts) { |
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super(opts); |
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this.proxy = typeof proxy === 'string' ? new url_1.URL(proxy) : proxy; |
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this.proxyHeaders = opts?.headers ?? {}; |
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debug('Creating new HttpProxyAgent instance: %o', this.proxy.href); |
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// Trim off the brackets from IPv6 addresses |
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const host = (this.proxy.hostname || this.proxy.host).replace(/^\[|\]$/g, ''); |
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const port = this.proxy.port |
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? parseInt(this.proxy.port, 10) |
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: this.proxy.protocol === 'https:' |
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? 443 |
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: 80; |
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this.connectOpts = { |
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...(opts ? omit(opts, 'headers') : null), |
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host, |
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port, |
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}; |
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} |
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addRequest(req, opts) { |
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req._header = null; |
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this.setRequestProps(req, opts); |
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// @ts-expect-error `addRequest()` isn't defined in `@types/node` |
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super.addRequest(req, opts); |
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} |
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setRequestProps(req, opts) { |
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const { proxy } = this; |
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const protocol = opts.secureEndpoint ? 'https:' : 'http:'; |
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const hostname = req.getHeader('host') || 'localhost'; |
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const base = `${protocol}//${hostname}`; |
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const url = new url_1.URL(req.path, base); |
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if (opts.port !== 80) { |
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url.port = String(opts.port); |
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} |
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// Change the `http.ClientRequest` instance's "path" field |
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// to the absolute path of the URL that will be requested. |
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req.path = String(url); |
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// Inject the `Proxy-Authorization` header if necessary. |
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const headers = typeof this.proxyHeaders === 'function' |
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? this.proxyHeaders() |
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: { ...this.proxyHeaders }; |
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if (proxy.username || proxy.password) { |
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const auth = `${decodeURIComponent(proxy.username)}:${decodeURIComponent(proxy.password)}`; |
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headers['Proxy-Authorization'] = `Basic ${Buffer.from(auth).toString('base64')}`; |
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} |
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if (!headers['Proxy-Connection']) { |
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headers['Proxy-Connection'] = this.keepAlive |
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? 'Keep-Alive' |
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: 'close'; |
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} |
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for (const name of Object.keys(headers)) { |
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const value = headers[name]; |
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if (value) { |
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req.setHeader(name, value); |
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} |
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} |
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} |
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async connect(req, opts) { |
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req._header = null; |
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if (!req.path.includes('://')) { |
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this.setRequestProps(req, opts); |
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} |
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// At this point, the http ClientRequest's internal `_header` field |
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// might have already been set. If this is the case then we'll need |
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// to re-generate the string since we just changed the `req.path`. |
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let first; |
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let endOfHeaders; |
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debug('Regenerating stored HTTP header string for request'); |
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req._implicitHeader(); |
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if (req.outputData && req.outputData.length > 0) { |
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debug('Patching connection write() output buffer with updated header'); |
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first = req.outputData[0].data; |
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endOfHeaders = first.indexOf('\r\n\r\n') + 4; |
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req.outputData[0].data = |
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req._header + first.substring(endOfHeaders); |
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debug('Output buffer: %o', req.outputData[0].data); |
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} |
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// Create a socket connection to the proxy server. |
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let socket; |
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if (this.proxy.protocol === 'https:') { |
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debug('Creating `tls.Socket`: %o', this.connectOpts); |
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socket = tls.connect(this.connectOpts); |
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} |
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else { |
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debug('Creating `net.Socket`: %o', this.connectOpts); |
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socket = net.connect(this.connectOpts); |
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} |
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// Wait for the socket's `connect` event, so that this `callback()` |
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// function throws instead of the `http` request machinery. This is |
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// important for i.e. `PacProxyAgent` which determines a failed proxy |
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// connection via the `callback()` function throwing. |
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await (0, events_1.once)(socket, 'connect'); |
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return socket; |
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} |
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} |
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HttpProxyAgent.protocols = ['http', 'https']; |
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exports.HttpProxyAgent = HttpProxyAgent; |
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function omit(obj, ...keys) { |
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const ret = {}; |
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let key; |
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for (key in obj) { |
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if (!keys.includes(key)) { |
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ret[key] = obj[key]; |
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} |
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} |
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return ret; |
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} |
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//# sourceMappingURL=index.js.map
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