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var tls = require('tls');
var inherits = require('util').inherits;
var EventEmitter = require('events').EventEmitter;
var SocksClient = require('./socks-client.js');
function SocksAgent(options, secure, rejectUnauthorized) {
this.options = options;
this.secure = secure || false;
this.rejectUnauthorized = rejectUnauthorized;
if (this.rejectUnauthorized === undefined) {
this.rejectUnauthorized = true;
}
}
inherits(SocksAgent, EventEmitter);
SocksAgent.prototype.createConnection = function(req, opts, fn) {
var handler = fn, host, self = this;
this.options.target = this.options.target || {};
if (!this.options.target.host) {
this.options.target.host = opts.host;
}
if (!this.options.target.port) {
this.options.target.port = opts.port;
}
host = this.options.target.host;
if (this.secure) {
handler = function(err, socket, info) {
var options, cleartext;
if (err) {
return fn(err);
}
// save encrypted socket
self.encryptedSocket = socket;
options = {
socket: socket,
servername: host,
rejectUnauthorized: self.rejectUnauthorized
};
cleartext = tls.connect(options, function (err) {
return fn(err, this);
});
cleartext.on('error', fn);
socket.resume();
}
}
SocksClient.createConnection(this.options, handler);
};
/**
* @see https://www.npmjs.com/package/agent-base
*/
SocksAgent.prototype.addRequest = function(req, host, port, localAddress) {
var opts;
if ('object' === typeof host) {
// >= v0.11.x API
opts = host;
if (opts.host && opts.path) {
// if both a `host` and `path` are specified then it's most likely the
// result of a `url.parse()` call... we need to remove the `path` portion so
// that `net.connect()` doesn't attempt to open that as a unix socket file.
delete opts.path;
}
} else {
// <= v0.10.x API
opts = { host: host, port: port };
if (null !== localAddress) {
opts.localAddress = localAddress;
}
}
var sync = true;
this.createConnection(req, opts, function (err, socket) {
function emitErr () {
req.emit('error', err);
}
if (err) {
if (sync) {
// need to defer the "error" event, when sync, because by now the `req`
// instance hasn't event been passed back to the user yet...
process.nextTick(emitErr);
} else {
emitErr();
}
} else {
req.onSocket(socket);
//have to resume this socket when node 12
socket.resume();
}
});
sync = false;
};
exports.Agent = SocksAgent;
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