PHPProxy README.

1. Why proxy in PHP?

  There is HTTP server in PostScript, so why not?
  Also fun and now you can abuse your hosting service provider or
  workaround restrictive company's proxy at work.

2. Installation.


  On server side you need PHP that can do network functions and Perl
  compatible regex (PCRE). Python client daemon require Python 2 with

  On client side you can use provided standalone MS Windows binary -, it is 'freezed' Python client daemon.
  Or use ActiveState's Python


  Take a look at HTTP request flow to understand how to create valid
  Here it is:

   |  1  Your browser
   |  2  PHPProxy client module (
   | [3] Optional proxy (on firewall, APS, OOPS, Squid, MS ISA, etc.)
   |  4  Webserver + PHPProxy server module (phpproxy.php)
   | [5] Optional parent proxy
  \|/ 6  Target webserver

  Step by step:

  Browser (1) send request to PHPProxy (2). (2)
  incapsulate this HTTP request into another HTTP request to
  phpproxy.php (4) as form parameter and send this request directly or
  using optional proxy [3]. phpproxy.php (4) extracts real HTTP request
  parameters and sends the request to target webserver (6) directly
  or through optional parent proxy [5].

  Edit and phpproxy.php. Comments are given inside and
  content should be self explanatory. Edit if you are
  using standalone client executable Put phpproxy.php
  on webserver. Launch client daemon. Enter new proxy location in your
  browser. Enjoy!

  PHPProxy can be also used w/o client daemon - just point your browser
  to www.yourserver/phpproxy.php - you'll be presented with a form where
  you can enter single URL for download. Download button takes you to
  download directly and by using POST HTTP method it hides true URL string
  from intermediate proxy. Get a link button generates HEX encoded link
  which can be downloaded with right-click. The purpose of this link is
  to obfuscate URL and present dummy text/html HTTP Content-Type to
  intermediate proxy so that you can download any type of file you want to.
  Summary: quick and convinient way to download something when you're
  behind restrictive proxy which filters content by URL string or content

  For tunneling via Microsoft ISA proxy servers that use NTLM athentication
  I highly recommend NTLM Authorization Proxy Server
  Tested with PHPProxy. Just configure PHPProxy to use APS as proxy [3]
  (see diagram above) and you'll be able to browse anything you want.
  PHPProxy will hide the real content identity, APS will tunnel PHPProxy
  requests via MS ISA.

3. Notes, bugs, and limitations.

  Client side Python proxy use standard components only. But doesn't
  support proxy authentication.	phpproxy.php URL must be HTTP, HTTPS
  is not supported.

  When in "direct" mode (see explanation above and phpproxy.php for
  details) the only protocol supported is HTTP. When using parent
  proxy, PHPProxy doesn't care about protocol - it only see HTTP
  requests and responses. So if you want FTP too, consider using
  parent proxy.

  PHP must support Perl compaible regex functions. It should be in
  default install. Should be trivial to rewrite w/o regex.

  Client module use application/x-www-form-urlencoded, not
  multipart/form-data to encapsulate request, I'm not sure but it
  may cause problems.

  CONNECT method (for SSL proxying) is not easy and will impose many
  limitations on deployment scenarios. Most likely will not be ever

4. Author.

  Arkadi.Shishlov at
  Contact me in case you found bug(s), have patches, ideas, etc.

5. License.

  GNU General Public License (GPL).

6. ChangeLog.

  * 28 Mar 2005. Version 0.6.
    - Major bugfixes to POST method and Keep-Alives handling - read:
      much better and faster.
    - Single URL download form.
    - Perl client daemon desupported.

  * 23 Feb 2002. Version 0.5.
    - Updated to use latest Net::Daemon prefork mode.

  * 22 Feb 2002. Version 0.4.
    - Persistent connections support removed (cannot implement
      in simple way).
    - Miscellaneous bugfixes.

  * 19 Feb 2002. Version 0.3.
    - Client module in Python.
    - Python client module standalone executables.

  * 05 Mar 2001. Version 0.2.
    - Client module prefork mode on UNIX (patch against Net::Daemon).

  * 19 Feb 2001. Version 0.1.
    - Initial release.