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   1  <?php
   2  /**
   3  * @version $Id: admin.installer.php 4623 2006-08-21 16:40:39Z stingrey $
   4  * @package Joomla
   5  * @subpackage Installer
   6  * @copyright Copyright (C) 2005 Open Source Matters. All rights reserved.
   7  * @license http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.php
   8  * Joomla! is free software. This version may have been modified pursuant
   9  * to the GNU General Public License, and as distributed it includes or
  10  * is derivative of works licensed under the GNU General Public License or
  11  * other free or open source software licenses.
  12  * See COPYRIGHT.php for copyright notices and details.
  13  */
  14  
  15  // no direct access
  16  defined( '_VALID_MOS' ) or die( 'Restricted access' );
  17  
  18  // XML library
  19  require_once ( $mosConfig_absolute_path . '/includes/domit/xml_domit_lite_include.php' );
  20  require_once( $mainframe->getPath( 'admin_html' ) );
  21  require_once( $mainframe->getPath( 'class' ) );
  22  
  23  $element     = mosGetParam( $_REQUEST, 'element', '' );
  24  $client     = mosGetParam( $_REQUEST, 'client', '' );
  25  $path         = $mosConfig_absolute_path . "/administrator/components/com_installer/$element/$element.php";
  26  
  27  // ensure user has access to this function
  28  if ( !$acl->acl_check( 'administration', 'install', 'users', $my->usertype, $element . 's', 'all' ) ) {
  29      mosRedirect( 'index2.php', _NOT_AUTH );
  30  }
  31  
  32  // map the element to the required derived class
  33  $classMap = array(
  34      'component' => 'mosInstallerComponent',
  35      'language'     => 'mosInstallerLanguage',
  36      'mambot'     => 'mosInstallerMambot',
  37      'module'     => 'mosInstallerModule',
  38      'template'     => 'mosInstallerTemplate'
  39  );
  40  
  41  if (array_key_exists ( $element, $classMap )) {
  42      require_once( $mainframe->getPath( 'installer_class', $element ) );
  43  
  44      switch ($task) {
  45  
  46          case 'uploadfile':
  47              uploadPackage( $classMap[$element], $option, $element, $client );
  48              break;
  49  
  50          case 'installfromdir':
  51              installFromDirectory( $classMap[$element], $option, $element, $client );
  52              break;
  53  
  54          case 'remove':
  55              removeElement( $classMap[$element], $option, $element, $client );
  56              break;
  57  
  58          default:
  59              $path = $mosConfig_absolute_path . "/administrator/components/com_installer/$element/$element.php";
  60  
  61              if (file_exists( $path )) {
  62                  require $path;
  63              } else {
  64                  echo "Installer not found for element [$element]";
  65              }
  66              break;
  67      }
  68  } else {
  69      echo "Installer not available for element [$element]";
  70  }
  71  
  72  /**
  73  * @param string The class name for the installer
  74  * @param string The URL option
  75  * @param string The element name
  76  */
  77  function uploadPackage( $installerClass, $option, $element, $client ) {
  78      $installer = new $installerClass();
  79  
  80      // Check if file uploads are enabled
  81      if (!(bool)ini_get('file_uploads')) {
  82          HTML_installer::showInstallMessage( "The installer can't continue before file uploads are enabled. Please use the install from directory method.",
  83              'Installer - Error', $installer->returnTo( $option, $element, $client ) );
  84          exit();
  85      }
  86  
  87      // Check that the zlib is available
  88      if(!extension_loaded('zlib')) {
  89          HTML_installer::showInstallMessage( "The installer can't continue before zlib is installed",
  90              'Installer - Error', $installer->returnTo( $option, $element, $client ) );
  91          exit();
  92      }
  93  
  94      $userfile = mosGetParam( $_FILES, 'userfile', null );
  95  
  96      if (!$userfile) {
  97          HTML_installer::showInstallMessage( 'No file selected', 'Upload new module - error',
  98              $installer->returnTo( $option, $element, $client ));
  99          exit();
 100      }
 101  
 102      $userfile_name = $userfile['name'];
 103  
 104      $msg = '';
 105      $resultdir = uploadFile( $userfile['tmp_name'], $userfile['name'], $msg );
 106  
 107      if ($resultdir !== false) {
 108          if (!$installer->upload( $userfile['name'] )) {
 109              HTML_installer::showInstallMessage( $installer->getError(), 'Upload '.$element.' - Upload Failed',
 110                  $installer->returnTo( $option, $element, $client ) );
 111          }
 112          $ret = $installer->install();
 113  
 114          HTML_installer::showInstallMessage( $installer->getError(), 'Upload '.$element.' - '.($ret ? 'Success' : 'Failed'),
 115              $installer->returnTo( $option, $element, $client ) );
 116          cleanupInstall( $userfile['name'], $installer->unpackDir() );
 117      } else {
 118          HTML_installer::showInstallMessage( $msg, 'Upload '.$element.' -  Upload Error',
 119              $installer->returnTo( $option, $element, $client ) );
 120      }
 121  }
 122  
 123  /**
 124  * Install a template from a directory
 125  * @param string The URL option
 126  */
 127  function installFromDirectory( $installerClass, $option, $element, $client ) {
 128      $userfile = mosGetParam( $_REQUEST, 'userfile', '' );
 129  
 130      if (!$userfile) {
 131          mosRedirect( "index2.php?option=$option&element=module", "Please select a directory" );
 132      }
 133  
 134      $installer = new $installerClass();
 135  
 136      $path = mosPathName( $userfile );
 137      if (!is_dir( $path )) {
 138          $path = dirname( $path );
 139      }
 140  
 141      $ret = $installer->install( $path );
 142      HTML_installer::showInstallMessage( $installer->getError(), 'Upload new '.$element.' - '.($ret ? 'Success' : 'Error'), $installer->returnTo( $option, $element, $client ) );
 143  }
 144  /**
 145  *
 146  * @param
 147  */
 148  function removeElement( $installerClass, $option, $element, $client ) {
 149      $cid = mosGetParam( $_REQUEST, 'cid', array(0) );
 150      if (!is_array( $cid )) {
 151          $cid = array(0);
 152      }
 153  
 154      $installer     = new $installerClass();
 155      $result     = false;
 156      if ($cid[0]) {
 157          $result = $installer->uninstall( $cid[0], $option, $client );
 158      }
 159  
 160      $msg = $installer->getError();
 161  
 162      mosRedirect( $installer->returnTo( $option, $element, $client ), $result ? 'Success ' . $msg : 'Failed ' . $msg );
 163  }
 164  /**
 165  * @param string The name of the php (temporary) uploaded file
 166  * @param string The name of the file to put in the temp directory
 167  * @param string The message to return
 168  */
 169  function uploadFile( $filename, $userfile_name, &$msg ) {
 170      global $mosConfig_absolute_path;
 171      $baseDir = mosPathName( $mosConfig_absolute_path . '/media' );
 172  
 173      if (file_exists( $baseDir )) {
 174          if (is_writable( $baseDir )) {
 175              if (move_uploaded_file( $filename, $baseDir . $userfile_name )) {
 176                  if (mosChmod( $baseDir . $userfile_name )) {
 177                      return true;
 178                  } else {
 179                      $msg = 'Failed to change the permissions of the uploaded file.';
 180                  }
 181              } else {
 182                  $msg = 'Failed to move uploaded file to <code>/media</code> directory.';
 183              }
 184          } else {
 185              $msg = 'Upload failed as <code>/media</code> directory is not writable.';
 186          }
 187      } else {
 188          $msg = 'Upload failed as <code>/media</code> directory does not exist.';
 189      }
 190      return false;
 191  }
 192  ?>