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   1  <?php // $Id: save_xml_file.class.php,v 1.5 2007/10/10 05:25:30 nicolasconnault Exp $
   2  
   3  ///////////////////////////////////////////////////////////////////////////
   4  //                                                                       //
   5  // NOTICE OF COPYRIGHT                                                   //
   6  //                                                                       //
   7  // Moodle - Modular Object-Oriented Dynamic Learning Environment         //
   8  //          http://moodle.com                                            //
   9  //                                                                       //
  10  // Copyright (C) 1999 onwards Martin Dougiamas        http://dougiamas.com  //
  11  //           (C) 2001-3001 Eloy Lafuente (stronk7) http://contiento.com  //
  12  //                                                                       //
  13  // This program is free software; you can redistribute it and/or modify  //
  14  // it under the terms of the GNU General Public License as published by  //
  15  // the Free Software Foundation; either version 2 of the License, or     //
  16  // (at your option) any later version.                                   //
  17  //                                                                       //
  18  // This program is distributed in the hope that it will be useful,       //
  19  // but WITHOUT ANY WARRANTY; without even the implied warranty of        //
  20  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         //
  21  // GNU General Public License for more details:                          //
  22  //                                                                       //
  23  //          http://www.gnu.org/copyleft/gpl.html                         //
  24  //                                                                       //
  25  ///////////////////////////////////////////////////////////////////////////
  26  
  27  /// This class will save one edited xml file
  28  
  29  class save_xml_file extends XMLDBAction {
  30  
  31      /**
  32       * Init method, every subclass will have its own
  33       */
  34      function init() {
  35          parent::init();
  36  
  37      /// Set own custom attributes
  38  
  39      /// Get needed strings
  40          $this->loadStrings(array(
  41              'filenotwriteable' => 'xmldb'
  42          ));
  43      }
  44  
  45      /**
  46       * Invoke method, every class will have its own
  47       * returns true/false on completion, setting both
  48       * errormsg and output as necessary
  49       */
  50      function invoke() {
  51          parent::invoke();
  52  
  53          $result = true;
  54  
  55      /// Set own core attributes
  56          $this->does_generate = ACTION_NONE;
  57  
  58      /// These are always here
  59          global $CFG, $XMLDB;
  60  
  61      /// Do the job, setting result as needed
  62  
  63      /// Get the dir containing the file
  64          $dirpath = required_param('dir', PARAM_PATH);
  65          $dirpath = $CFG->dirroot . stripslashes_safe($dirpath);
  66  
  67      /// Get the edited dir
  68          if (!empty($XMLDB->editeddirs)) {
  69              if (isset($XMLDB->editeddirs[$dirpath])) {
  70                  $editeddir =& $XMLDB->editeddirs[$dirpath];
  71              }
  72          }
  73      /// Copy the edited dir over the original one
  74          if (!empty($XMLDB->dbdirs)) {
  75              if (isset($XMLDB->dbdirs[$dirpath])) {
  76                  $XMLDB->dbdirs[$dirpath] = unserialize(serialize($editeddir));
  77                  $dbdir =& $XMLDB->dbdirs[$dirpath];
  78              }
  79          }
  80  
  81      /// Chech for perms
  82          if (!is_writeable($dirpath . '/install.xml')) {
  83              $this->errormsg = $this->str['filenotwriteable'] . '(' . $dirpath . '/install.xml)';
  84              return false;
  85          }
  86  
  87      /// Save the original dir
  88          $result = $dbdir->xml_file->saveXMLFile();
  89  
  90          if ($result) {
  91          /// Delete the edited dir
  92              unset ($XMLDB->editeddirs[$dirpath]);
  93          /// Unload de originaldir
  94              unset($XMLDB->dbdirs[$dirpath]->xml_file);
  95              unset($XMLDB->dbdirs[$dirpath]->xml_loaded);
  96              unset($XMLDB->dbdirs[$dirpath]->xml_changed);
  97              unset($XMLDB->dbdirs[$dirpath]->xml_exists);
  98              unset($XMLDB->dbdirs[$dirpath]->xml_writeable);
  99          } else {
 100              $this->errormsg = 'Error saving XML file (' . $dirpath . ')';
 101              return false;
 102          }
 103  
 104      /// Launch postaction if exists (leave this here!)
 105          if ($this->getPostAction() && $result) {
 106              return $this->launch($this->getPostAction());
 107          }
 108  
 109      /// Return ok if arrived here
 110          return $result;
 111      }
 112  }
 113  ?>