badges/external.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * Display details of an issued badge with criteria and evidence
  19  *
  20  * @package    core
  21  * @subpackage badges
  22  * @copyright  2012 onwards Totara Learning Solutions Ltd {@link http://www.totaralms.com/}
  23  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  * @author     Yuliya Bozhko <yuliya.bozhko@totaralms.com>
  25  */
  26
  27 require_once(__DIR__ . '/../config.php');
  28 require_once($CFG->libdir . '/badgeslib.php');
  29
  30 $json = optional_param('badge', null, PARAM_RAW);
  31 // Redirect to homepage if users are trying to access external badge through old url.
  32 if ($json) {
  33     redirect($CFG->wwwroot, get_string('invalidrequest', 'error'), 3);
  34 }
  35
  36 $hash = required_param('hash', PARAM_ALPHANUM);
  37 $userid = required_param('user', PARAM_INT);
  38
  39 $PAGE->set_url(new moodle_url('/badges/external.php', array('hash' => $hash, 'user' => $userid)));
  40 $PAGE->set_context(context_system::instance());
  41
  42 // Using the same setting as user profile page.
  43 if (!empty($CFG->forceloginforprofiles)) {
  44     require_login();
  45     if (isguestuser()) {
  46         $SESSION->wantsurl = $PAGE->url->out(false);
  47         redirect(get_login_url());
  48     }
  49 } else if (!empty($CFG->forcelogin)) {
  50     require_login();
  51 }
  52
  53 // Get all external badges of a user.
  54 $out = get_backpack_settings($userid);
  55
  56 // If we didn't find any badges then print an error.
  57 if (is_null($out)) {
  58     throw new \moodle_exception('error:externalbadgedoesntexist', 'badges');
  59 }
  60
  61 $badges = $out->badges;
  62
  63 // The variable to store the badge we want.
  64 $badge = '';
  65
  66 // Loop through the badges and check if supplied badge hash exists in user external badges.
  67 foreach ($badges as $b) {
  68     if ($hash == hash("md5", $b->hostedUrl)) {
  69         $badge = $b;
  70         break;
  71     }
  72 }
  73
  74 // If we didn't find the badge a user might be trying to replace the userid parameter.
  75 if (empty($badge)) {
  76     throw new \moodle_exception('error:externalbadgedoesntexist', 'badges');
  77 }
  78
  79 $output = $PAGE->get_renderer('core', 'badges');
  80
  81 $badge = new \core_badges\output\external_badge($badge, $userid);
  82
  83 $PAGE->set_pagelayout('base');
  84 $PAGE->set_title(get_string('issuedbadge', 'badges'));
  85 $badgename = '';
  86 if (!empty($badge->issued->name)) {
  87     $badgename = s($badge->issued->name);
  88 }
  89 if (!empty($badge->issued->assertion->badge->name)) {
  90     $badgename = s($badge->issued->assertion->badge->name);
  91 }
  92 $PAGE->set_heading($badgename);
  93 $PAGE->navbar->add($badgename);
  94 if (isloggedin() && $USER->id == $userid) {
  95     $url = new moodle_url('/badges/mybadges.php');
  96 } else {
  97     $url = new moodle_url($CFG->wwwroot);
  98 }
  99 navigation_node::override_active_url($url);
 100
 101 echo $OUTPUT->header();
 102
 103 echo $output->render($badge);
 104
 105 echo $OUTPUT->footer();