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<?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/>.
/**
* Handle the return from the Tool Provider after registering a tool proxy.
*
* @package mod_lti
* @copyright 2014 Vital Source Technologies http://vitalsource.com
* @author Stephen Vickers
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once('../../config.php');
require_once($CFG->dirroot.'/mod/lti/locallib.php');
$top = optional_param('top', 0, PARAM_INT);
$msg = optional_param('lti_msg', '', PARAM_TEXT);
$err = optional_param('lti_errormsg', '', PARAM_TEXT);
$id = optional_param('id', 0, PARAM_INT);
// No guest autologin.
require_sesskey();
require_login(0, false);
$systemcontext = context_system::instance();
require_capability('moodle/site:config', $systemcontext);
if (empty($top)) {
$params = array();
$params['sesskey'] = sesskey();
$params['top'] = '1';
if (!empty($msg)) {
$params['lti_msg'] = $msg;
}
if (!empty($err)) {
$params['lti_errormsg'] = $err;
}
if (!empty($id)) {
$params['id'] = $id;
}
$redirect = new moodle_url('/mod/lti/registrationreturn.php', $params);
$redirect = $redirect->out(false);
$clickhere = get_string('click_to_continue', 'lti', (object)array('link' => $redirect));
$html = <<< EOD
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript">
//<![CDATA[
top.location.href = '{$redirect}';
//]]
</script>
</head>
<body>
<noscript>
{$clickhere}
</noscript>
</body>
</html>
EOD;
// We always send the headers because they set the encoding.
send_headers('text/html; charset=utf-8', false);
echo $html;
} else if (!empty($msg) && !empty($err)) {
$params = array();
$params['sesskey'] = sesskey();
$params['top'] = '1';
if (!empty($err)) {
$params['lti_errormsg'] = $err;
}
if (!empty($id)) {
$params['id'] = $id;
}
$redirect = new moodle_url('/mod/lti/registrationreturn.php', $params);
$redirect = $redirect->out(false);
redirect($redirect, $err);
} else {
$redirect = new moodle_url('/mod/lti/toolproxies.php');
if (!empty($id)) {
$toolproxy = $DB->get_record('lti_tool_proxies', array('id' => $id));
switch($toolproxy->state) {
case LTI_TOOL_PROXY_STATE_ACCEPTED:
$redirect->param('tab', 'tp_accepted');
break;
case LTI_TOOL_PROXY_STATE_REJECTED:
$redirect->param('tab', 'tp_rejected');
break;
case LTI_TOOL_PROXY_STATE_PENDING:
// Change the status to configured.
$toolproxy->state = LTI_TOOL_PROXY_STATE_CONFIGURED;
lti_update_tool_proxy($toolproxy);
}
}
$redirect = $redirect->out();
if (empty($msg)) {
$msg = $err;
}
redirect($redirect, $msg);
}