[Sommaire] [Imprimer]

   1  <?php
   2  /**
   3   * IMP base inclusion file. This file brings in all of the dependencies that
   4   * every IMP script will need, and sets up objects that all scripts use.
   5   *
   6   * The following variables, defined in the script that calls this one, are
   7   * used:
   8   *   $authentication   - The type of authentication to use
   9   *   $no_compress      - Controls whether the page should be compressed
  10   *   $session_control  - Sets special session control limitations
  11   *
  12   * $Horde: imp/lib/base.php,v 1.79.10.15 2007/01/02 13:54:56 jan Exp $
  13   *
  14   * Copyright 1999-2007 Chuck Hagenbuch <chuck@horde.org>
  15   *
  16   * See the enclosed file COPYING for license information (GPL). If you
  17   * did not receive this file, see http://www.fsf.org/copyleft/gpl.html.
  18   */
  19  
  20  // Check for a prior definition of HORDE_BASE (perhaps by an
  21  // auto_prepend_file definition for site customization).
  22  if (!defined('HORDE_BASE')) {
  23      @define('HORDE_BASE', dirname(__FILE__) . '/../..');
  24  }
  25  
  26  // Load the Horde Framework core, and set up inclusion paths.
  27  require_once HORDE_BASE . '/lib/core.php';
  28  
  29  $session_control = Util::nonInputVar('session_control');
  30  switch ($session_control) {
  31  case 'netscape':
  32      if ($browser->isBrowser('mozilla')) {
  33          session_cache_limiter('private, must-revalidate');
  34      }
  35      break;
  36  }
  37  
  38  // Registry.
  39  if ($session_control == 'none') {
  40      $registry = &Registry::singleton(HORDE_SESSION_NONE);
  41  } elseif ($session_control == 'readonly') {
  42      $registry = &Registry::singleton(HORDE_SESSION_READONLY);
  43  } else {
  44      $registry = &Registry::singleton();
  45  }
  46  
  47  // We explicitly do not check application permissions for the compose
  48  // and recompose pages, since those are handled below and need to fall
  49  // through to IMP-specific code.
  50  $auth_check = !(defined('AUTH_HANDLER') || strstr($_SERVER['PHP_SELF'], 'compose.php'));
  51  if (is_a(($pushed = $registry->pushApp('imp', $auth_check)), 'PEAR_Error')) {
  52      if ($pushed->getCode() == 'permission_denied') {
  53          Horde::authenticationFailureRedirect();
  54      }
  55      Horde::fatal($pushed, __FILE__, __LINE__, false);
  56  }
  57  $conf = &$GLOBALS['conf'];
  58  @define('IMP_TEMPLATES', $registry->get('templates'));
  59  
  60  // Find the base file path of IMP.
  61  @define('IMP_BASE', dirname(__FILE__) . '/..');
  62  
  63  // Notification system.
  64  require_once  IMP_BASE . '/lib/Notification/Listener/status.php';
  65  $notification = &Notification::singleton();
  66  $notification->attach('status', null, 'Notification_Listener_status_imp');
  67  // BC check.
  68  if (@include_once 'Horde/Notification/Listener/audio.php') {
  69      $notification->attach('audio');
  70  }
  71  
  72  // IMP base library.
  73  require_once  IMP_BASE . '/lib/IMP.php';
  74  
  75  // If IMP isn't responsible for Horde auth, and no one is logged into
  76  // Horde, redirect to the login screen. If this is a compose window
  77  // that just timed out, give the user a chance to recover their
  78  // message.
  79  if (!(Auth::isAuthenticated() || (Auth::getProvider() == 'imp'))) {
  80      if (strstr($_SERVER['PHP_SELF'], 'recompose.php')) {
  81          // Let this fall through; otherwise we create an infinite
  82          // inclusion loop.
  83      } elseif (strstr($_SERVER['PHP_SELF'], 'compose.php')) {
  84          require  IMP_BASE . '/recompose.php';
  85          exit;
  86      } else {
  87          Horde::authenticationFailureRedirect();
  88      }
  89  }
  90  
  91  // Horde libraries.
  92  require_once 'Horde/Secret.php';
  93  
  94  // Help.
  95  require_once 'Horde/Help.php';
  96  
  97  // Start compression.
  98  if (!Util::nonInputVar('no_compress')) {
  99      Horde::compressOutput();
 100  }
 101  
 102  $authentication = Util::nonInputVar('authentication');
 103  if ($authentication === null) {
 104      $authentication = 0;
 105  }
 106  if ($authentication !== 'none') {
 107      // If we've gotten to this point and have valid login credentials
 108      // but don't actually have an IMP session, then we need to go
 109      // through redirect.php to ensure that everything gets set up
 110      // properly. Single-signon and transparent authentication setups
 111      // are likely to trigger this case.
 112      if (empty($_SESSION['imp'])) {
 113          if (strstr($_SERVER['PHP_SELF'], 'compose.php')) {
 114              require  IMP_BASE . '/recompose.php';
 115          } else {
 116              require  IMP_BASE . '/redirect.php';
 117          }
 118          exit;
 119      }
 120  
 121      if (strstr($_SERVER['PHP_SELF'], 'compose.php')) {
 122          if (!IMP::checkAuthentication($authentication, true)) {
 123              require  IMP_BASE . '/recompose.php';
 124              exit;
 125          }
 126      } else {
 127          IMP::checkAuthentication($authentication);
 128      }
 129  }
 130  
 131  if ((IMP::loginTasksFlag() === 2) &&
 132      !defined('AUTH_HANDLER') &&
 133      !strstr($_SERVER['PHP_SELF'], 'maintenance.php')) {
 134      require_once  IMP_BASE . '/lib/Session.php';
 135      IMP_Session::loginTasks();
 136  }
 137  
 138  // Set default message character set, if necessary
 139  if (isset($prefs) && ($def_charset = $prefs->getValue('default_msg_charset'))) {
 140      $GLOBALS['mime_structure']['default_charset'] = $def_charset;
 141      $GLOBALS['mime_headers']['default_charset'] = $def_charset;
 142  }
 143  
 144  // Catch c-client errors.
 145  register_shutdown_function('imap_errors');
 146  register_shutdown_function('imap_alerts');