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egroupware_official/phpgwapi/inc/functions.inc.php

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<?php
/**************************************************************************\
* eGroupWare API loader *
* This file was originaly written by Dan Kuykendall and Joseph Engo *
* Copyright (C) 2000, 2001 Dan Kuykendall *
* -------------------------------------------------------------------------*
* Rewritten by RalfBecker@outdoor-training.de to store the eGW enviroment *
* (egw-object and egw_info-array) in a php-session and restore it from *
* there instead of creating it completly new on each page-request. *
* The enviroment gets now created by the egw-class *
* -------------------------------------------------------------------------*
* This library is part of the eGroupWare API http://www.egroupware.org *
* ------------------------------------------------------------------------ *
* 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; either version 2 of the License, or (at your *
* option) any later version. *
\**************************************************************************/
/* $Id$ */
error_reporting(E_ALL & ~E_NOTICE);
magic_quotes_runtime(false);
$egw_min_php_version = '4.3';
if (!function_exists('version_compare') || version_compare(PHP_VERSION,$egw_min_php_version) < 0) //version_compare() is only available in PHP4.1+
{
die("eGroupWare requires PHP $egw_min_php_version or greater.<br />Please contact your System Administrator to upgrade PHP!");
}
// check if eGW's pear repository is installed and prefer it over the other ones
if (is_dir(EGW_SERVER_ROOT.'/egw-pear'))
{
set_include_path(EGW_SERVER_ROOT.'/egw-pear'.PATH_SEPARATOR.get_include_path());
//echo "<p align=right>include_path='".get_include_path()."'</p>\n";
}
if (!defined('EGW_API_INC')) define('EGW_API_INC',PHPGW_API_INC); // this is to support the header upgrade
/* Make sure the header.inc.php is current. */
if (!isset($GLOBALS['egw_domain']) || $GLOBALS['egw_info']['server']['versions']['header'] < $GLOBALS['egw_info']['server']['versions']['current_header'])
{
echo '<center><b>You need to update your header.inc.php file to version '.
$GLOBALS['egw_info']['server']['versions']['current_header'].
' by running <a href="setup/manageheader.php">setup/headeradmin</a>.</b></center>';
exit;
}
/* Make sure the developer is following the rules. */
if (!isset($GLOBALS['egw_info']['flags']['currentapp']))
{
echo "<p><b>!!! YOU DO NOT HAVE YOUR \$GLOBALS['egw_info']['flags']['currentapp'] SET !!!<br>\n";
echo '!!! PLEASE CORRECT THIS SITUATION !!!</b></p>';
}
include(EGW_API_INC.'/common_functions.inc.php');
// check if we can restore the eGW enviroment from the php-session
if ($GLOBALS['egw_info']['server']['sessions_type'] == 'php4-restore' && $_REQUEST['sessionid'])
{
session_name('sessionid');
ini_set('session.use_cookies',0); // disable the automatic use of cookies, as it uses the path / by default
session_id($_REQUEST['sessionid']);
session_start();
if ($GLOBALS['egw_info']['flags']['currentapp'] != 'login' && $GLOBALS['egw_info']['flags']['currentapp'] != 'logout')
{
if (is_array($_SESSION['egw_info_cache']) && is_array($_SESSION['egw_included_files']) && $_SESSION['egw_object_cache'])
{
// marking the context as restored from the session, used by session->verify to not read the date from the db again
$GLOBALS['egw_info']['flags']['restored_from_session'] = true;
// restoring the egw_info-array
$flags = $GLOBALS['egw_info']['flags'];
$GLOBALS['egw_info'] = $_SESSION['egw_info_cache'];
$GLOBALS['egw_info']['flags'] = $flags;
unset($flags);
// including the necessary class-definitions
foreach($_SESSION['egw_included_files'] as $file)
{
//echo "<p>about to include $file</p>\n";
include_once($file);
if (basename($file) == 'class.egw_framework.inc.php') break; // the rest is not needed and makes only problems
}
$GLOBALS['egw'] = unserialize($_SESSION['egw_object_cache']);
if (is_object($GLOBALS['egw']))
{
$GLOBALS['egw']->wakeup2(); // adapt the restored egw-object/enviroment to this request (eg. changed current app)
//printf("<p style=\"position: absolute; right: 0px; top: 0px;\">egw-enviroment restored in %d ms</p>\n",1000*(perfgetmicrotime()-$GLOBALS['egw_info']['flags']['page_start_time']));
if (is_object($GLOBALS['egw']->translation)) return; // exit this file, as the rest of the file creates a new egw-object and -enviroment
}
// egw object could NOT be restored from the session, create a new one
unset($GLOBALS['egw']);
$GLOBALS['egw_info'] = array('flags'=>$GLOBALS['egw_info']['flags']);
unset($GLOBALS['egw_info']['flags']['restored_from_session']);
unset($_SESSION['egw_info_cache']);
unset($_SESSION['egw_included_files']);
unset($_SESSION['egw_object_cache']);
}
//echo "<p>could not restore egw_info and the egw-object!!!</p>\n";
}
else // destroy the session-cache if called by login or logout
{
unset($_SESSION['egw_info_cache']);
unset($_SESSION['egw_included_files']);
unset($_SESSION['egw_object_cache']);
}
}
print_debug('sane environment','messageonly','api');
/****************************************************************************\
* Multi-Domain support *
\****************************************************************************/
if (!isset($GLOBALS['egw_info']['server']['default_domain']) || // allow to overwrite the default domain
!isset($GLOBALS['egw_domain'][$GLOBALS['egw_info']['server']['default_domain']]))
{
if(isset($GLOBALS['egw_domain'][$_SERVER['SERVER_NAME']]))
{
$GLOBALS['egw_info']['server']['default_domain'] = $_SERVER['SERVER_NAME'];
}
else
{
$domain_part = explode('.',$_SERVER['SERVER_NAME']);
array_shift($domain_part);
$domain_part = implode('.',$domain_part);
if(isset($GLOBALS['egw_domain'][$domain_part]))
{
$GLOBALS['egw_info']['server']['default_domain'] = $domain_part;
}
else
{
reset($GLOBALS['egw_domain']);
list($GLOBALS['egw_info']['server']['default_domain']) = each($GLOBALS['egw_domain']);
}
unset($domain_part);
}
}
if (isset($_POST['login'])) // on login
{
$GLOBALS['login'] = $_POST['login'];
if (strpos($GLOBALS['login'],'@') === False || count($GLOBALS['egw_domain']) == 1)
{
$GLOBALS['login'] .= '@' . get_var('logindomain',array('POST'),$GLOBALS['egw_info']['server']['default_domain']);
}
$parts = explode('@',$GLOBALS['login']);
$GLOBALS['egw_info']['user']['domain'] = array_pop($parts);
}
else // on "normal" pageview
{
$GLOBALS['egw_info']['user']['domain'] = get_var('domain',array('GET','COOKIE'),false);
}
if (@isset($GLOBALS['egw_domain'][$GLOBALS['egw_info']['user']['domain']]))
{
$GLOBALS['egw_info']['server']['db_host'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['user']['domain']]['db_host'];
$GLOBALS['egw_info']['server']['db_port'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['user']['domain']]['db_port'];
$GLOBALS['egw_info']['server']['db_name'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['user']['domain']]['db_name'];
$GLOBALS['egw_info']['server']['db_user'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['user']['domain']]['db_user'];
$GLOBALS['egw_info']['server']['db_pass'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['user']['domain']]['db_pass'];
$GLOBALS['egw_info']['server']['db_type'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['user']['domain']]['db_type'];
}
else
{
$GLOBALS['egw_info']['server']['db_host'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['server']['default_domain']]['db_host'];
$GLOBALS['egw_info']['server']['db_port'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['server']['default_domain']]['db_port'];
$GLOBALS['egw_info']['server']['db_name'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['server']['default_domain']]['db_name'];
$GLOBALS['egw_info']['server']['db_user'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['server']['default_domain']]['db_user'];
$GLOBALS['egw_info']['server']['db_pass'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['server']['default_domain']]['db_pass'];
$GLOBALS['egw_info']['server']['db_type'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['server']['default_domain']]['db_type'];
}
print_debug('domain',@$GLOBALS['egw_info']['user']['domain'],'api');
// the egw-object instanciates all sub-classes (eg. $GLOBALS['egw']->db) and the egw_info array
$GLOBALS['egw'] =& CreateObject('phpgwapi.egw',array_keys($GLOBALS['egw_domain']));
if ($GLOBALS['egw_info']['flags']['currentapp'] != 'login')
{
if (!$GLOBALS['egw_info']['server']['show_domain_selectbox'])
{
unset ($GLOBALS['egw_domain']); // we kill this for security reasons
}
//printf("<p style=\"position: absolute; right: 0px; top: 0px;\">egw-enviroment new created in %d ms</p>\n",1000*(perfgetmicrotime()-$GLOBALS['egw_info']['flags']['page_start_time']));
}
// saving the the egw_info array and the egw-object in the session
if ($GLOBALS['egw_info']['server']['sessions_type'] == 'php4-restore' && $GLOBALS['egw_info']['flags']['currentapp'] != 'login')
{
$_SESSION['egw_info_cache'] = $GLOBALS['egw_info'];
unset($_SESSION['egw_info_cache']['flags']); // dont save the flags, they change on each request
// exclude 1: caller, 2: the header.inc.php, 3: phpgwapi/setup/setup.inc.php, 4: phpgwapi/inc/functions.inc.php (this file)
$_SESSION['egw_included_files'] = array();
foreach(array_slice(get_included_files(),4) as $file)
{
switch(basename($file))
{
case 'head.inc.php': // needs EGW_TEMPLATE_DIR and is included anyway by common::egw_header()
case 'functions.inc.php': // not needed/wanted at all
break;
default:
$_SESSION['egw_included_files'][] = $file;
}
}
$_SESSION['egw_object_cache'] = serialize($GLOBALS['egw']);
}
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