rsocks 0.2.1

Installation

$ pip install rsocks

Or

$ easy_install rsocks

Usage

First, we need to create a config file with following format:

# /path/to/rsocks.toml
[servers.foo]
proxy = "socks4://user:pass@192.168.1.10:1080"
listen_host = 0.0.0.0
listen_port = 5025
upstream_host = "smtp.example.com"
upstream_port = 25
upstream_ssl = false

There is an example for forwarding SMTP/IMAP of Gmail through a SOCKS5 proxy server:

[servers.imap]
proxy = "socks5://localhost:1080"
listen_port = 5993
upstream_host = "imap.gmail.com"
upstream_port = 993
upstream_ssl = true

[servers.smtp]
proxy = "socks5://localhost:1080"
listen_port = 5465
upstream_host = "smtp.gmail.com"
upstream_port = 465
upstream_ssl = true

Next, we start the rsocks server:

$ rsocks --config=/path/to/rsocks.toml
[14:24:44] rsocks.servers.smtp       Using proxy server socks5://localhost:1080
[14:24:44] rsocks.servers.smtp       Listening 127.0.0.1:5465
[14:24:44] rsocks.servers.imap       Using proxy server socks5://localhost:1080
[14:24:44] rsocks.servers.imap       Listening 127.0.0.1:5993
[14:24:44] rsocks.pool               Prepared "smtp"
[14:24:44] rsocks.pool               Prepared "imap"
[14:24:44] rsocks.servers.smtp       Starting server...
[14:24:44] rsocks.servers.imap       Starting server...

Don’t stop it now, open your application (such as Airmail in OS X) and set the server option to local forwarding address:

SMTP: 127.0.0.1:5465 without SSL
IMAP: 127.0.0.1:5993 without SSL

Now the application’s traffic will be forwarded through the proxy server (socks5://127.0.0.1:1080).

If you wish to run the rsocks server in the background, please check the examples directory. OS X users can copy the com.tonyseek.rsocks.plist file to ~/Library/LaunchAgents and load it as a service:

$ touch $HOME/.rsocks.toml
$ nano $HOME/.rsocks.toml  # edit the config file
$ wget http://git.io/pG4D -O ~/Library/LaunchAgents/com.tonyseek.rsocks.plist
$ nano ~/Library/LaunchAgents/com.tonyseek.rsocks.plist  # edit the plist
$ launchctl load -w ~/Library/LaunchAgents/com.tonyseek.rsocks.plist

Using API

The example for API using is simple:

import os

from rsocks.pool import ServerPool
from rsocks.server import ReverseProxyServer

proxy = os.environ.get('SOCKS_PROXY', 'socks5://localhost:1080')
pool = ServerPool()

with pool.new_server(
        name='IMAP',
        server_class=ReverseProxyServer,
        upstream=('imap.gmail.com', 993),
        use_ssl=True) as server:
    server.set_proxy(proxy)
    server.listen(('127.0.0.1', 5993))

with pool.new_server(
        name='SMTP',
        server_class=ReverseProxyServer,
        upstream=('smtp.gmail.com', 465),
        use_ssl=True) as server:
    server.set_proxy(proxy)
    server.listen(('127.0.0.1', 5465))

if __name__ == '__main__':
    pool.loop()