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2b24a67 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 | "use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.HttpProxyAgent = void 0;
const net = __importStar(require("net"));
const tls = __importStar(require("tls"));
const debug_1 = __importDefault(require("debug"));
const events_1 = require("events");
const agent_base_1 = require("agent-base");
const debug = (0, debug_1.default)('http-proxy-agent');
/**
* The `HttpProxyAgent` implements an HTTP Agent subclass that connects
* to the specified "HTTP proxy server" in order to proxy HTTP requests.
*/
class HttpProxyAgent extends agent_base_1.Agent {
constructor(proxy, opts) {
super(opts);
this.proxy = typeof proxy === 'string' ? new URL(proxy) : proxy;
this.proxyHeaders = opts?.headers ?? {};
debug('Creating new HttpProxyAgent instance: %o', this.proxy.href);
// Trim off the brackets from IPv6 addresses
const host = (this.proxy.hostname || this.proxy.host).replace(/^\[|\]$/g, '');
const port = this.proxy.port
? parseInt(this.proxy.port, 10)
: this.proxy.protocol === 'https:'
? 443
: 80;
this.connectOpts = {
...(opts ? omit(opts, 'headers') : null),
host,
port,
};
}
addRequest(req, opts) {
req._header = null;
this.setRequestProps(req, opts);
// @ts-expect-error `addRequest()` isn't defined in `@types/node`
super.addRequest(req, opts);
}
setRequestProps(req, opts) {
const { proxy } = this;
const protocol = opts.secureEndpoint ? 'https:' : 'http:';
const hostname = req.getHeader('host') || 'localhost';
const base = `${protocol}//${hostname}`;
const url = new URL(req.path, base);
if (opts.port !== 80) {
url.port = String(opts.port);
}
// Change the `http.ClientRequest` instance's "path" field
// to the absolute path of the URL that will be requested.
req.path = String(url);
// Inject the `Proxy-Authorization` header if necessary.
const headers = typeof this.proxyHeaders === 'function'
? this.proxyHeaders()
: { ...this.proxyHeaders };
if (proxy.username || proxy.password) {
const auth = `${decodeURIComponent(proxy.username)}:${decodeURIComponent(proxy.password)}`;
headers['Proxy-Authorization'] = `Basic ${Buffer.from(auth).toString('base64')}`;
}
if (!headers['Proxy-Connection']) {
headers['Proxy-Connection'] = this.keepAlive
? 'Keep-Alive'
: 'close';
}
for (const name of Object.keys(headers)) {
const value = headers[name];
if (value) {
req.setHeader(name, value);
}
}
}
async connect(req, opts) {
req._header = null;
if (!req.path.includes('://')) {
this.setRequestProps(req, opts);
}
// At this point, the http ClientRequest's internal `_header` field
// might have already been set. If this is the case then we'll need
// to re-generate the string since we just changed the `req.path`.
let first;
let endOfHeaders;
debug('Regenerating stored HTTP header string for request');
req._implicitHeader();
if (req.outputData && req.outputData.length > 0) {
debug('Patching connection write() output buffer with updated header');
first = req.outputData[0].data;
endOfHeaders = first.indexOf('\r\n\r\n') + 4;
req.outputData[0].data =
req._header + first.substring(endOfHeaders);
debug('Output buffer: %o', req.outputData[0].data);
}
// Create a socket connection to the proxy server.
let socket;
if (this.proxy.protocol === 'https:') {
debug('Creating `tls.Socket`: %o', this.connectOpts);
socket = tls.connect(this.connectOpts);
}
else {
debug('Creating `net.Socket`: %o', this.connectOpts);
socket = net.connect(this.connectOpts);
}
// Wait for the socket's `connect` event, so that this `callback()`
// function throws instead of the `http` request machinery. This is
// important for i.e. `PacProxyAgent` which determines a failed proxy
// connection via the `callback()` function throwing.
await (0, events_1.once)(socket, 'connect');
return socket;
}
}
HttpProxyAgent.protocols = ['http', 'https'];
exports.HttpProxyAgent = HttpProxyAgent;
function omit(obj, ...keys) {
const ret = {};
let key;
for (key in obj) {
if (!keys.includes(key)) {
ret[key] = obj[key];
}
}
return ret;
}
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