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0bb56f2e31
Previously, any inappropriate whitespace found whilst building the admin tree caused a JSON error and for the site administration tree retrieval to fail. This change ensures that access to the site administration tree is unbroken for non-developers, whilst still alerting developers that there is an issue.
63 lines
2.1 KiB
PHP
63 lines
2.1 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* This file is used to deliver a branch from the site administration
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* in XML format back to a page from an AJAX call
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*
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* @since 2.6
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* @package core
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* @copyright 2013 Rajesh Taneja <rajesh@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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define('AJAX_SCRIPT', true);
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require_once(dirname(__FILE__) . '/../../config.php');
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// This should be accessed by only valid logged in user.
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if (!isloggedin() or isguestuser()) {
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die('Invalid access.');
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}
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// This identifies the type of the branch we want to get. Make sure it's SITE_ADMIN.
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$branchtype = required_param('type', PARAM_INT);
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if ($branchtype !== navigation_node::TYPE_SITE_ADMIN) {
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die('Wrong node type passed.');
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}
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// Start capturing output in case of broken plugins.
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ob_start();
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$PAGE->set_context(context_system::instance());
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$PAGE->set_url('/lib/ajax/getsiteadminbranch.php', array('type'=>$branchtype));
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$sitenavigation = new settings_navigation_ajax($PAGE);
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// Convert and output the branch as JSON.
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$converter = new navigation_json();
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$branch = $sitenavigation->get('root');
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$output = ob_get_contents();
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ob_end_clean();
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if ($CFG->debugdeveloper && !empty($output)) {
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throw new coding_exception('Unexpected output whilst building the administration tree. ' .
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'This could be caused by trailing whitespace. Output received: ' .
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var_export($output, true));
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} else {
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echo $converter->convert($branch);
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}
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