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Introduction

A naive forwarding protocol. This is a proof of concept (PoC).

  • follows 0-RTT pattern.
  • forward on rules.
  • handles http connect and socks requests.
  • also redispatches HTTP requests, so some old HTTP clients without keep-alive support will enjoy some performance boost.

QuickStart

  • Make sure you have Java 11+ installed.
  • Prepare a valid SSL cert at <cert_file> and its private key at <private_key_file>. The private key must be encoded in PEM.
  • Download latest build. Unzip it
  • Run java -jar smartproxy-x.x.x.jar help to get help.
  • Run client java -jar smartproxy-x.x.x.jar client -n <local_listening_port> -p <server_listening_port> -s <server_ip> -w <secret_password>.
  • Run server java -jar smartproxy-x.x.x.jar server -c <cert_file> -k <private_key_file> -p <server_listening_port> -w <secret_password>.
  • Use "socks5://127.0.0.1:<local_listening_port>"
  • Enjoy!

How to get SSL cert

see certbot (github)

user.rule

You may also update your user.rule file for better experience. Just download it and replace the old one.
The lastest user.rule can be downloaded here.
forwardproto automatically uses user.rule file in current working directory as routing configuration.

# A line which starts with "#" is comment
# "a.com" means "a.com" only, ".a.com" means "a.com" and all sub domains of "a.com" 
# we can also use ip range like "192.168.0.0 192.168.255.255"
#
# "direct" means connect without proxy
# "proxy" means forward to backend proxy
# "reject" means drop connection

For example, when deciding routes of sub.domain.com, first checks if there's a sub.domain.com rule.
Then it checks .sub.domain.com. Then .domain.com. Then .com.
And lastly, if all miss, it uses default rule, which is proxy.

Build

You need Maven to build.
Just run maven install and you will find the jar and zip generated in the target folder.