[Sommaire] [Imprimer]

   1  <?php
   2    /**************************************************************************\
   3    * eGroupWare API loader                                                    *
   4    * This file was originaly written by Dan Kuykendall and Joseph Engo        *
   5    * Copyright (C) 2000, 2001 Dan Kuykendall                                  *
   6    * -------------------------------------------------------------------------*
   7    * Rewritten by RalfBecker@outdoor-training.de to store the eGW enviroment  *
   8    * (egw-object and egw_info-array) in a php-session and restore it from     *
   9    * there instead of creating it completly new on each page-request.         *
  10    * The enviroment gets now created by the egw-class                         *
  11    * -------------------------------------------------------------------------*
  12    * This library is part of the eGroupWare API http://www.egroupware.org     *
  13    * ------------------------------------------------------------------------ *
  14    *  This program is free software; you can redistribute it and/or modify it *
  15    *  under the terms of the GNU General Public License as published by the   *
  16    *  Free Software Foundation; either version 2 of the License, or (at your  *
  17    *  option) any later version.                                              *
  18    \**************************************************************************/
  19  
  20    /* $Id: functions.inc.php 23187 2007-01-03 08:06:47Z ralfbecker $ */
  21  
  22      error_reporting(E_ALL & ~E_NOTICE);
  23      magic_quotes_runtime(false);
  24  
  25      if (!function_exists('version_compare'))//version_compare() is only available in PHP4.1+
  26      {
  27          echo 'eGroupWare requires PHP 4.1 or greater.<br>';
  28          echo 'Please contact your System Administrator';
  29          exit;
  30      }
  31  
  32      if (!defined('EGW_API_INC')) define('EGW_API_INC',PHPGW_API_INC);    // this is to support the header upgrade
  33  
  34      /* Make sure the header.inc.php is current. */
  35      if (!isset($GLOBALS['egw_domain']) || $GLOBALS['egw_info']['server']['versions']['header'] < $GLOBALS['egw_info']['server']['versions']['current_header'])
  36      {
  37          echo '<center><b>You need to update your header.inc.php file to version '.
  38          $GLOBALS['egw_info']['server']['versions']['current_header'].
  39          ' by running <a href="setup/manageheader.php">setup/headeradmin</a>.</b></center>';
  40          exit;
  41      }
  42  
  43      /* Make sure the developer is following the rules. */
  44      if (!isset($GLOBALS['egw_info']['flags']['currentapp']))
  45      {
  46          echo "<p><b>!!! YOU DO NOT HAVE YOUR \$GLOBALS['egw_info']['flags']['currentapp'] SET !!!<br>\n";
  47          echo '!!! PLEASE CORRECT THIS SITUATION !!!</b></p>';
  48      }
  49  
  50      include_once (EGW_API_INC.'/common_functions.inc.php');
  51  
  52      // check if we can restore the eGW enviroment from the php-session
  53      if ($GLOBALS['egw_info']['server']['sessions_type'] == 'php4-restore' && $_REQUEST['sessionid'])
  54      {
  55          session_name('sessionid');
  56          session_start();
  57  
  58          if ($GLOBALS['egw_info']['flags']['currentapp'] != 'login' && $GLOBALS['egw_info']['flags']['currentapp'] != 'logout')
  59          {
  60              if (is_array($_SESSION['egw_info_cache']) && is_array($_SESSION['egw_included_files']) && $_SESSION['egw_object_cache'])
  61              {
  62                  // marking the context as restored from the session, used by session->verify to not read the date from the db again
  63                  $GLOBALS['egw_info']['flags']['restored_from_session'] = true;
  64      
  65                  // restoring the egw_info-array
  66                  $flags = $GLOBALS['egw_info']['flags'];
  67                  $GLOBALS['egw_info'] = $_SESSION['egw_info_cache'];
  68                  $GLOBALS['egw_info']['flags'] = $flags;
  69                  unset($flags);
  70      
  71                  // including the necessary class-definitions
  72                  foreach($_SESSION['egw_included_files'] as $file)
  73                  {
  74                      //echo "<p>about to include $file</p>\n";
  75                      include_once($file);
  76                  }
  77                  $GLOBALS['egw'] = unserialize($_SESSION['egw_object_cache']);
  78      
  79                  $GLOBALS['egw']->wakeup2();    // adapt the restored egw-object/enviroment to this request (eg. changed current app)
  80      
  81                  //printf("<p style=\"position: absolute; right: 0px; top: 0px;\">egw-enviroment restored in %d ms</p>\n",1000*(perfgetmicrotime()-$GLOBALS['egw_info']['flags']['page_start_time']));
  82      
  83                  return;    // exit this file, as the rest of the file creates a new egw-object and -enviroment
  84              }
  85              //echo "<p>could not restore egw_info and the egw-object!!!</p>\n";
  86          }
  87          else    // destroy the session-cache if called by login or logout
  88          {
  89              unset($_SESSION['egw_info_cache']);
  90              unset($_SESSION['egw_included_files']);
  91              unset($_SESSION['egw_object_cache']);
  92          }
  93      }
  94  
  95      print_debug('sane environment','messageonly','api');
  96  
  97      /****************************************************************************\
  98      * Multi-Domain support                                                       *
  99      \****************************************************************************/
 100  
 101      if (!isset($GLOBALS['egw_info']['server']['default_domain']) ||    // allow to overwrite the default domain
 102          !isset($GLOBALS['egw_domain'][$GLOBALS['egw_info']['server']['default_domain']]))
 103      { 
 104          if(isset($GLOBALS['egw_domain'][$_SERVER['SERVER_NAME']]))
 105          {
 106              $GLOBALS['egw_info']['server']['default_domain'] = $_SERVER['SERVER_NAME'];
 107          }
 108          else
 109          {
 110              reset($GLOBALS['egw_domain']);
 111              list($GLOBALS['egw_info']['server']['default_domain']) = each($GLOBALS['egw_domain']);
 112          }
 113      }
 114      if (isset($_POST['login']))    // on login
 115      {
 116          $GLOBALS['login'] = $_POST['login'];
 117          if (strstr($GLOBALS['login'],'@') === False || count($GLOBALS['egw_domain']) == 1)
 118          {
 119              $GLOBALS['login'] .= '@' . get_var('logindomain',array('POST'),$GLOBALS['egw_info']['server']['default_domain']);
 120          }
 121          $parts = explode('@',$GLOBALS['login']);
 122          $GLOBALS['egw_info']['user']['domain'] = array_pop($parts);
 123      }
 124      else    // on "normal" pageview
 125      {
 126          $GLOBALS['egw_info']['user']['domain'] = get_var('domain',array('GET','COOKIE'),false);
 127      }
 128      if (@isset($GLOBALS['egw_domain'][$GLOBALS['egw_info']['user']['domain']]))
 129      {
 130          $GLOBALS['egw_info']['server']['db_host'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['user']['domain']]['db_host'];
 131          $GLOBALS['egw_info']['server']['db_port'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['user']['domain']]['db_port'];
 132          $GLOBALS['egw_info']['server']['db_name'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['user']['domain']]['db_name'];
 133          $GLOBALS['egw_info']['server']['db_user'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['user']['domain']]['db_user'];
 134          $GLOBALS['egw_info']['server']['db_pass'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['user']['domain']]['db_pass'];
 135          $GLOBALS['egw_info']['server']['db_type'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['user']['domain']]['db_type'];
 136      }
 137      else
 138      {
 139          $GLOBALS['egw_info']['server']['db_host'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['server']['default_domain']]['db_host'];
 140          $GLOBALS['egw_info']['server']['db_port'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['server']['default_domain']]['db_port'];
 141          $GLOBALS['egw_info']['server']['db_name'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['server']['default_domain']]['db_name'];
 142          $GLOBALS['egw_info']['server']['db_user'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['server']['default_domain']]['db_user'];
 143          $GLOBALS['egw_info']['server']['db_pass'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['server']['default_domain']]['db_pass'];
 144          $GLOBALS['egw_info']['server']['db_type'] = $GLOBALS['egw_domain'][$GLOBALS['egw_info']['server']['default_domain']]['db_type'];
 145      }
 146      print_debug('domain',@$GLOBALS['egw_info']['user']['domain'],'api');
 147  
 148      // the egw-object instanciates all sub-classes (eg. $GLOBALS['egw']->db) and the egw_info array
 149      $GLOBALS['egw'] =& CreateObject('phpgwapi.egw',array_keys($GLOBALS['egw_domain']));
 150  
 151      if ($GLOBALS['egw_info']['flags']['currentapp'] != 'login')
 152      {
 153          if (!$GLOBALS['egw_info']['server']['show_domain_selectbox'])
 154          {
 155              unset ($GLOBALS['egw_domain']); // we kill this for security reasons
 156          }
 157          //printf("<p style=\"position: absolute; right: 0px; top: 0px;\">egw-enviroment new created in %d ms</p>\n",1000*(perfgetmicrotime()-$GLOBALS['egw_info']['flags']['page_start_time']));
 158      }
 159  
 160      // saving the the egw_info array and the egw-object in the session
 161      if ($GLOBALS['egw_info']['server']['sessions_type'] == 'php4-restore' && $GLOBALS['egw_info']['flags']['currentapp'] != 'login')
 162      {
 163          $_SESSION['egw_info_cache'] = $GLOBALS['egw_info'];
 164          unset($_SESSION['egw_info_cache']['flags']);    // dont save the flags, they change on each request
 165  
 166          // exclude 1: caller, 2: the header.inc.php, 3: phpgwapi/setup/setup.inc.php, 4: phpgwapi/inc/functions.inc.php (this file) 
 167          $_SESSION['egw_included_files'] = array();
 168          foreach(array_slice(get_included_files(),4) as $file)
 169          {
 170              if (!strstr($file,'phpgwapi'))
 171              {
 172                  continue;
 173              }
 174  
 175              switch(basename($file))
 176              {
 177                  case 'head.inc.php':    // needs EGW_TEMPLATE_DIR and is included anyway by common::egw_header()
 178                  case 'functions.inc.php': // not needed/wanted at all
 179                      break;
 180                  default:
 181                      $_SESSION['egw_included_files'][] = $file;
 182              }
 183          }
 184          $_SESSION['egw_object_cache'] = serialize($GLOBALS['egw']);
 185      }