SOCKS protocol version 5 server and client implementations for node.js
- node.js -- v0.10.0 or newer
npm install socksv5
- Server with no authentication and allowing all connections:
var socks = require('socksv5');
var srv = socks.createServer(function(info, accept, deny) {
accept();
});
srv.listen(1080, 'localhost', function() {
console.log('SOCKS server listening on port 1080');
});
srv.useAuth(socks.auth.None());
- Server with username/password authentication and allowing all (authenticated) connections:
var socks = require('socksv5');
var srv = socks.createServer(function(info, accept, deny) {
accept();
});
srv.listen(1080, 'localhost', function() {
console.log('SOCKS server listening on port 1080');
});
srv.useAuth(socks.auth.UserPassword(function(user, password, cb) {
cb(user === 'nodejs' && password === 'rules!');
}));
- Server with no authentication and redirecting all connections to localhost:
var socks = require('socksv5');
var srv = socks.createServer(function(info, accept, deny) {
info.dstAddr = 'localhost';
accept();
});
srv.listen(1080, 'localhost', function() {
console.log('SOCKS server listening on port 1080');
});
srv.useAuth(socks.auth.None());
- Server with no authentication and denying all connections not made to port 80:
var socks = require('socksv5');
var srv = socks.createServer(function(info, accept, deny) {
if (info.dstPort === 80)
accept();
else
deny();
});
srv.listen(1080, 'localhost', function() {
console.log('SOCKS server listening on port 1080');
});
srv.useAuth(socks.auth.None());
- Server with no authentication, intercepting all connections to port 80, and passing through all others:
var socks = require('socksv5');
var srv = socks.createServer(function(info, accept, deny) {
if (info.dstPort === 80) {
var socket;
if (socket = accept(true)) {
var body = 'Hello ' + info.srcAddr + '!\n\nToday is: ' + (new Date());
socket.end([
'HTTP/1.1 200 OK',
'Connection: close',
'Content-Type: text/plain',
'Content-Length: ' + Buffer.byteLength(body),
'',
body
].join('\r\n'));
}
} else
accept();
});
srv.listen(1080, 'localhost', function() {
console.log('SOCKS server listening on port 1080');
});
srv.useAuth(socks.auth.None());
- Client with no authentication:
var socks = require('socksv5');
var client = socks.connect({
host: 'google.com',
port: 80,
proxyHost: '127.0.0.1',
proxyPort: 1080
}, function(socket) {
console.log('>> Connection successful');
socket.write('GET /node.js/rules HTTP/1.0\r\n\r\n');
socket.pipe(process.stdout);
});
client.useAuth(socks.auth.None());
-
Server - A class representing a SOCKS server.
-
createServer([< function >connectionListener]) - Server - Similar to
net.createServer()
. -
Client - A class representing a SOCKS client.
-
connect(< object >options[, < function >connectListener]) - Client -
options
must containport
,proxyHost
, andproxyPort
. Ifhost
is not provided, it defaults to 'localhost'. -
createConnection(< object >options[, < function >connectListener]) - Client - Aliased to
connect()
. -
auth - An object containing built-in authentication handlers for Client and Server instances:
-
Server
-
None() - Returns an authentication handler that permits no authentication.
-
UserPassword(< function >validateUser) - Returns an authentication handler that permits username/password authentication.
validateUser
is passed the username, password, and a callback that you call with a boolean indicating whether the username/password is valid.
-
-
Client
-
None() - Returns an authentication handler that uses no authentication.
-
UserPassword(< string >username, < string >password) - Returns an authentication handler that uses username/password authentication.
-
-
These are the same as net.Server events, with the following exception(s):
-
connection(< object >connInfo, < function >accept, < function >deny) - Emitted for each new (authenticated, if applicable) connection request.
connInfo
has the properties:-
srcAddr - string - The remote IP address of the client that sent the request.
-
srcPort - integer - The remote port of the client that sent the request.
-
dstAddr - string - The destination address that the client has requested. This can be a hostname or an IP address.
-
dstPort - integer - The destination port that the client has requested.
accept
has a boolean parameter which if set totrue
, will return the underlyingnet.Socket
for you to read from/write to, allowing you to intercept the request instead of proxying the connection to its intended destination. -
These are the same as net.Server methods, with the following exception(s):
- useAuth(< function >authHandler) - Server - Appends the
authHandler
to a list of authentication methods to allow for clients. This list's order is preserved and the first authentication method to match that of the client's list "wins." Returns the Server instance for chaining.
-
connect(< Socket >connection) - Emitted when handshaking/negotiation is complete and you are free to read from/write to the connected socket.
-
error(< Error >err) - Emitted when a parser, socket (during handshaking/negotiation), or DNS (if
localDNS
andstrictLocalDNS
aretrue
) error occurs. -
close(< boolean >had_error) - Emitted when the client is closed (due to error and/or socket closed).
-
(constructor)(< object >config) - Returns a new Client instance using these possible
config
properties:-
proxyHost - string - The address of the proxy to connect to (defaults to 'localhost').
-
proxyPort - integer - The port of the proxy to connect to (defaults to 1080).
-
localDNS - boolean - If
true
, the client will try to resolve the destination hostname locally. Otherwise, the client will always pass the destination hostname to the proxy server for resolving (defaults to true). -
strictLocalDNS - boolean - If
true
, the client gives up if the destination hostname cannot be resolved locally. Otherwise, the client will continue and pass the destination hostname to the proxy server for resolving (defaults to true).
-
-
connect(< mixed >options[, < function >connectListener]) - Client - Similar to
net.Socket.connect()
. Additionally, ifoptions
is an object, you can also setlocalDNS
andstrictLocalDNS
to override the same settings passed to the constructor. -
useAuth(< function >authHandler) - Server - Appends the
authHandler
to a list of authentication methods to allow for clients. This list's order is preserved and the first authentication method to match that of the client's list "wins." Returns the Server instance for chaining.