PAC-gen

Dynamic Proxy Auto-Configuration (PAC) generator in PHP

Quick start

Just copy files in www to a PHP web server.

Add your custom hosts json files to pac.config.d/hostnames/, and add your custom preset rules to pac.config.d/presets/.

config and examples

pac.config.d/
├── hostnames
│   ├── ban.json
│   ├── direct.json
│   ├── example.json
│   └── test.json
└── presets
    └── office.json

URL examples

If you want to ban and/or direct access hosts in corresponding json files, just simply set them in your URL.

ban hosts in pac.config.d/hostnames/ban.json:

pac.php?ban=1

similarly, directly access hosts in pac.config.d/hostnames/direct.json:

pac.php?direct=1

You need to set type and proxy for default and other hosts in pac.config.d/hostnames/. Possible values for type are http and socks5.

The default config of default proxy is DIRECT. If you want to set a default proxy:

pac.php?default[type]=http&default[proxy]=127.0.0.1:8080

similarly, set proxy for hosts in pac.config.d/hostnames/:

pac.php?test[type]=http&test[proxy]=127.0.0.1:8080
pac.php?test[type]=socks5&test[proxy]=127.0.0.1:1080

Example result:

pac.php?ban=1&test[type]=http&test[proxy]=127.0.0.1:8080&example[type]=socks5&test[proxy]=127.0.0.1:1080

In general, your final query string might be long and complicated, and it is troublesome to change the same proxy settings of multiple devices. Try to save these rules in pac.config.d/presets/ instead, and use preset rules like this (recommended):

pac.php?pre=office

you can overwrite part of preset rules in like this:

pac.php?pre=office&test[proxy]=127.0.0.1:12345
pac.php?pre=office&test[type]=http&test[proxy]=127.0.0.1:8080

Web server

Only tested in PHP 7 (I guess PHP 5 should work too).

You can edit config.php for more config.

apache

(optional) To support compression, use mod_defalte and modify /etc/apache2/mods-enabled/deflate.conf:

AddOutputFilterByType DEFLATE application/x-ns-proxy-autoconfig

nginx

How to debug your .pac

you can edit config.php, modify $debug_enabled = false; to $debug_enabled = true;, and the extra output will be helpful for debugging:

pac.php?debugpac=debugpac

How to debug in chrome（Old version）:

disable all proxy extensions
run chrome --proxy-pac-url="http://example.com/pac.php"
open chrome://net-internals/#events
filter PAC_JAVASCRIPT_ALERT
click event to see logs

How to debug in chrome（New version）:

disable all proxy extensions
run chrome --proxy-pac-url="http://example.com/pac.php"
open chrome://net-export/, export log file to /path/to/log.json
run grep '_debug_pac.php_' /path/to/log.json

FAQ

License

This repo is licensed under the GNU General Public License v3.0

Phuker/PAC-gen