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Lemonldap-Handlers-Generic-3.5.0
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Lemonldap::Handlers::Generic4a2

NAME

Lemonldap::Handlers::Generic  - Perl extension for Lemonldap sso system

Lemonldap::Handlers::Generic4a2 - Handler for Apache2 Lemonldap SSO
system

SYNOPSIS

In httpd.conf

 .....
 perltranshandler Lemonldap::Handlers::Generic4a2
 .....

DESCRIPTION

Generic4a2 is the central piece of  websso framework .
This module provides several methods but the principal goal of this is the handler function .
It can be combined with mod_proxy or mod_rewrite and all other apache's  modules .
It provides also an built-in  http proxy with LWP .
see http://lemonldap.sf.net for more infos .

Parameters (see also doc folder)

A minimal configuration  must provide  infos about :
config
PerlSetVar ConfigFile /usr/local/apache/conf/config_demo1.xml 

The filename of the mean XML Config   :It's REQUIRED
domain
PerlSetVar Domain demo.net

It fixes the value of domain for the  application protected by  this handler (see below)
xml section in config
Perlsetvar HandlerID <xml section>

It fixes the value of XML section in config

Example (a KISS example, see also eg folder)

In httpd.conf

 <virtualHost 127.0.0.1:80>
 servername authen.demo.net
 PerlModule Apache2::compat
 PerlModule Bundle::Apache2
 PerlModule Lemonldap::Handlers::Generic4a2 
 perltranshandler Lemonldap::Handlers::Generic4a2
 PerlSetVar Domain demo.net
 PerlSetVar Configfile /usr/local/apache/conf/application_new.xml
 PerlSetVar HandlerID myintranet
 proxypass /intranet http://lemonldap.sourceforge.net
 proxypassreverse /intranet  http://lemonldap.sourceforge.net
 documentroot /usr/local/apache/htdocs
 </virtualhost>


 In /usr/local/apache/conf/application_new.xml
  <lemonconfig>
        <domain    id="demo.net"
                   Cookie="lemondemo"
		            >
		 <handler 
        		 id="myintranet" 
		 	  DisableAccessControl= "1"
		        />  
        </domain>
  </lemonconfig>

   
 Now you can put http://authen.demo.net/intranet/ in your browser and you will see lemonldap's  site
 AND now you can control who and where goes on your site .
  
 You can pass parameters from httpd.conf with perlsetvar  facilities  or put them in xml file

Functions

handler
It's the mean  function which does all jobs . If the enebledproxy parameter is set to 1  ,this function
will push proxy_handler function reference on  the handler's stack . If not it returns DECLINED (mod_proxy will be actived)
proxy_handler
It's the built-in proxy (LWP)  web embedded  in lemonldap framework . It is  actived by  enabledproxy parameter .
Some parameters are about this proxy and its behaviour
_lemonldap_debug
append this keyword at the end of url and you will can see all headers send to host.
Available  ONLY with built-in proxy

Features

Generic4a2 is build arround perl's modules .

Those modules are :

Utilities :
collection of functions
Core :
 It provides basics services like the cache service, forge header service or authorization service.
 
Core.pm  can use YOUR own services for all this cycle . It's plugger . Lemonldap framework is available 
with somes services but you can with Core.pm propose your own schemas.
News parameters  were added in XML DTD in order to describe the sequence.
MatrixPolicy :
manage authorization process , based on the hash of session (like preceding version)
Memsession :
manage the backend of session (cache level 3 and 4 )
AuthorizationHeader :
manage the construction of header
RewriteHTML :
Rewrite on fly html source in order to ajust somes tags like BASE , href or src
Available  ONLY with built-in proxy

More features

Authentification
Keep in mind  that the handler doesn't know HOW authenticate anybody but only knows WHERE authenticate . 
The parameter 'portal' tells it where to send the authentification request.
Caches
Thre are three levels of cache in lemonldap . 

*First cache (level 1) is a very KISS  , it's a memory structure in the program .
*Next  cache (level 2) is realised by using berkeleyDB hash
*Last cache (level 3) is realised by using memcached (see Apache::Session::Memorycached on CPAN)

SEE ALSO

Lemonldap(3), Lemonldap::Portal::Standard

http://lemonldap.sourceforge.net/

"Writing Apache Modules with Perl and C" by Lincoln Stein & Doug MacEachern - O'REILLY

Eric German, <germanlinux@yahoo.fr>
Isabelle Serre, <isabelle.serre@justice.gouv.fr>

COPYRIGHT AND LICENSE

Copyright (C) 2004 by Eric German & Isabelle Serre

Lemonldap originaly written by Eric german who decided to publish him in 2003 under the terms of the GNU General Public License version 2.

This package is under the GNU General Public License, Version 2.
Portions are copyrighted under the same license as Perl itself.
Portions are copyrighted by Doug MacEachern and Lincoln Stein. This library is under the GNU General Public License, Version 2.
Portage under Apache2 is made with help of : Ali Pouya and Shervin Ahmadi (MINEFI/DGI)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 dated June, 1991.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

A copy of the GNU General Public License is available in the source tree;
if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.