moodle/admin/xmldb/index.php
2011-01-14 09:32:17 +01:00

129 lines
5.7 KiB
PHP

<?php
///////////////////////////////////////////////////////////////////////////
// //
// NOTICE OF COPYRIGHT //
// //
// Moodle - Modular Object-Oriented Dynamic Learning Environment //
// http://moodle.com //
// //
// Copyright (C) 1999 onwards Martin Dougiamas http://dougiamas.com //
// (C) 2001-3001 Eloy Lafuente (stronk7) http://contiento.com //
// //
// This program 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 2 of the License, or //
// (at your option) any later version. //
// //
// This program 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: //
// //
// http://www.gnu.org/copyleft/gpl.html //
// //
///////////////////////////////////////////////////////////////////////////
/// This is the main script for the complete XMLDB interface. From here
/// all the actions supported will be launched.
require_once('../../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('xmldbeditor');
/// 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();
require_login();
require_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM));
/// 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/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 . '/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 . '/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
print_error('xmldberror');
}
} else {
$a = new stdClass();
$a->action = $action;
$a->actionclass = $actionclass;
print_error('cannotinstantiateclass', 'xmldb', '', $a);
}
} else {
print_error('invalidaction');
}
if ($xmldb_action->getDoesGenerate() != ACTION_GENERATE_XML) {
if (debugging()) {
///print_object($XMLDB);
}
}