ScriptAuth plugin for 3PROXY.

This plugin allows to validate (proxy) client's username and password using script file.

Username and password can contain only digits and letters.

Clone or download ScriptAuth plugin to /<3proxy source files>/src/plugins directory.

Edit Makefile.Linux file and add ScriptAuth to your plugins list, like in example below:

PLUGINS = StringsPlugin TrafficPlugin PCREPlugin TransparentPlugin ScriptAuth

Compile 3PROXY:

make -f Makefile.Linux

In your 3proxy.cfg file include scriptauth.ld.so library/plugin, like in example bellow:

plugin "/<path to>/scriptauth.ld.so" start "<script>"

Plugin settings:

• start - run plugin
• script - Path to you script file in order to execute. Ex. /etc/3proxy/scripts/auth.php

After that, in your 3proxy.cfg file you will be able to use ScriptAuth plugin in order to authenticate users:

...
authcache user,password 60
auth cache strong script
allow *
...

proxy -p3128

An example in PHP (using curl to request your API) you can found in scripts/auth.php file.

Issue: error: ld returned 1 exit status...

...
make[2]: Entering directory `/root/3proxy/src/plugins/ScriptAuth'
gcc -o ../../scriptauth.ld.so -O2 -fno-strict-aliasing -pthread -shared -lpam scriptauth.o
/usr/bin/ld: cannot find -lpam
collect2: error: ld returned 1 exit status
make[2]: *** [scriptauth.ld.so] Error 1
make[2]: Leaving directory `/root/3proxy/src/plugins/ScriptAuth'
...

Solution:

Install libpam modules:

sudo apt-get install libpam0g-dev