SOCKS Proxy + SSL Tunnel

Svetoslav Chekanov

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22 Feb 2000

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A full featured SOCKS 4 & 5 proxy server written in Java.

Download source files - 41 Kb

The SSH Proxy is full featured SOCKS Proxy written in Java.
It supports both versions 4 and 5 of Socks protocol.

Additional feature that I have implemented in SSH Proxy is the possibility to make TCP connections through an HTTP-SSL Tunnel.

SSH Proxy works in two modes:

Normal mode - works as normal SOCKS Proxy
TCP via SHTTP mode - Works as SOCKS Proxy but makes SOCKS TCP connections via HTTP-SSL Tunnel Proxy.

The TCP via SHTTP mode is very useful when user woks behind HTTP Proxy and hasn't any other acces to the Internet. In this case the user can run SSH Proxy on his/her machine, and configure it to use TCP connections via HTTP-SSL tunnels which are commonly supported by most proxies. This way he/she will be able to use other internet applications, eg. IRC, FTP, e-mail, telnet, HTTP (of course :-) but without caching and etc.

But if SSH Proxy works behind a firewall (in SSL tunnel mode) - the other SOCKS commands BIND and UDP association will not work.

SSH Proxy loads its configuration from file config.txt which should be in the directory of the SSH Proxy

# Copyright (c) 2000 Svetoslav Tchekanov (swetoslav@iname.com)
#-------------------------------
#EnableLog=no
EnableLog=yes
#-------------------------------
SOCKSPort=8888
#-------------------------------
#UseSHttpProxy=1
UseSHttpProxy=0
SHttpProxyHost=<SHTTP Proxy Host/IP>
SHttpProxyPort=<SHTTP Proxy Port>

The variables UseSHttpProxy and EnableLog are logical. So you can specify their values either by 1, 0, Yes or No.

License

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A list of licenses authors might use can be found here

Written By

Svetoslav Chekanov

Technical Lead Brosix

Bulgaria

I am a software development engineer .

Programming Languages: C/C++, Java, Delphi, HTML, CGI, Assembly x86, CNC G-language
RDBMS Microsoft SQL Server, MySQL, SQLite, MS Access, ODBC, JDBC

Networking: TCP/IP, Winsock, HTTP, HTTPS, FTP, SMTP, POP3, TELNET, IMAP, SOCKS 4/5, RTSP, CGI, MS Internet Information Server

Projects I have worked on:

Brosix

Screen-Sharing product

Video chat application

Server software

Java Virtual Machine

Application Server + Internet Proxy Services

Instant Messenger - like MSN and Yahoo ones

Voicer - Freeware VoIP application

Web Server

SSH Proxy - SOCKS 4&5 Proxy that can relay TCP Connections through HTTPS Proxy

HTTP Proxy

SOCKS proxy

Battery Test Suite

MFC custom UI controls

Internet Address Book - Synchronizes local Outlook, Outlook Express, Netscape and Eudora address book with database on WEB server located in the Internet

Advertising Screen Saver - Screen Saver that sends e-mails and gain prizes for the computer owner

Proxy Send Mail - Send Mail service that can send e-mails through SOCKS 4, SOCKS 5 and HTTPS proxies

Proxy Hunter - Very fast, and also works as proxy checker

Java Disassembler

Java custom UI controls

Delphi custom UI controls

CNC Gravuring System

Font editor for DOS

Little DOS games

Graphics library for DOS (in Assembly)

Galaxian like game for Apple][ in assembly

Graphics editor for Apple][

Font editor for Apple][

More information about my current work you can find here:
www.brosix.com

public void CreateSSLTunnel() throws Exception { Log.Println("Initiating SSL Tunneling..."); String user="username"; String pass="password"; Log.Println("Initiating Authentication..."); // Referenece http://tools.ietf.org/html/rfc1929 // +----+------+----------+------+----------+ // |VER | ULEN | UNAME | PLEN | PASSWD | // +----+------+----------+------+----------+ // | 1 | 1 | 1 to 255 | 1 | 1 to 255 | // +----+------+----------+------+----------+ byte ver = 0x01; byte[] uname = user.getBytes(); byte[] passwd = pass.getBytes(); int size = 1 + uname.length + 1+ passwd.length +1; byte[] headerData = new byte[size]; int next = 0; headerData[next] = ver; next++; headerData[next] = (byte) uname.length; next++; int i; for (i = 0; i < uname.length; i++) { headerData[next + i] = uname[i]; } next = next + i; headerData[next] = (byte) passwd.length; next++; int j; for (j = 0; j < passwd.length; j++) { headerData[next + j] = passwd[j]; } SendToServer(headerData); String cmd = "CONNECT " + Host + ":" + comm.m_nServerPort + " HTTP/1.0" + EOL + EOL; SendToServer(cmd.getBytes());

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SOCKS Proxy + SSL Tunnel

License

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