Proyectos de Subversion Moodle

<?php

// This file is part of Moodle - http://moodle.org/

//

// Moodle 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 3 of the License, or

// (at your option) any later version.

//

// Moodle is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**

 * This is the main script for the complete XMLDB interface. From here

 * all the actions supported will be launched.

 *

 * @package    tool_xmldb

 * @copyright  (C) 1999 onwards Martin Dougiamas http://dougiamas.com,

 *             (C) 2001-3001 Eloy Lafuente (stronk7) http://contiento.com

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

require('../../../config.php');

require_once($CFG->libdir.'/adminlib.php');

require_once($CFG->libdir.'/ddllib.php');

// Add required XMLDB action classes

require_once('actions/XMLDBAction.class.php');

require_once('actions/XMLDBCheckAction.class.php');

admin_externalpage_setup('toolxmld');

// Add other used libraries

require_once($CFG->libdir . '/xmlize.php');

// Handle session data

global $XMLDB;

// State is stored in session - we have to serialise it because the classes are not loaded when creating session

if (!isset($SESSION->xmldb)) {

    $XMLDB = new stdClass;

} else {

    $XMLDB = unserialize($SESSION->xmldb);

}

// Some previous checks

$site = get_site();

// Body of the script, based on action, we delegate the work

$action = optional_param ('action', 'main_view', PARAM_ALPHAEXT);

// Get the action path and invoke it

$actionsroot = "$CFG->dirroot/$CFG->admin/tool/xmldb/actions";

$actionclass = $action . '.class.php';

$actionpath = "$actionsroot/$action/$actionclass";

// Load and invoke the proper action

if (file_exists($actionpath) && is_readable($actionpath)) {

    require_once($actionpath);

    if ($xmldb_action = new $action) {

        // Invoke it

        $result = $xmldb_action->invoke();

        // store the result in session

        $SESSION->xmldb = serialize($XMLDB);

        if ($result) {

            // Based on getDoesGenerate()

            switch ($xmldb_action->getDoesGenerate()) {

                case ACTION_GENERATE_HTML:

                    $action = optional_param('action', '', PARAM_ALPHAEXT);

                    $postaction = optional_param('postaction', '', PARAM_ALPHAEXT);

                    // If the js exists, load it

                    if ($action) {

                        $script = $CFG->admin . '/tool/xmldb/actions/' . $action . '/' . $action . '.js';

                        $file = $CFG->dirroot . '/' . $script;

                        if (file_exists($file) && is_readable($file)) {

                            $PAGE->requires->js('/'.$script);

                        } else if ($postaction) {

                            // Try to load the postaction javascript if exists

                            $script = $CFG->admin . '/tool/xmldb/actions/' . $postaction . '/' . $postaction . '.js';

                            $file = $CFG->dirroot . '/' . $script;

                            if (file_exists($file) && is_readable($file)) {

                                $PAGE->requires->js('/'.$script);

                            }

                        }

                    }

                    // Go with standard admin header

                    echo $OUTPUT->header();

                    echo $OUTPUT->heading($xmldb_action->getTitle());

                    echo $xmldb_action->getOutput();

                    echo $OUTPUT->footer();

                    break;

                case ACTION_GENERATE_XML:

                    header('Content-type: application/xhtml+xml; charset=utf-8');

                    echo $xmldb_action->getOutput();

                    break;

            }

        } else {

            // TODO: need more detailed error info

            throw new \moodle_exception('xmldberror');

        }

    } else {

        $a = new stdClass();

        $a->action = $action;

        $a->actionclass = $actionclass;

        throw new \moodle_exception('cannotinstantiateclass', 'tool_xmldb', '', $a);

    }

} else {

    throw new \moodle_exception('invalidaction');

}

if ($xmldb_action->getDoesGenerate() != ACTION_GENERATE_XML) {

    if (debugging()) {

        // print_object($XMLDB);

    }

}