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