badges/backpack-add.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  * Optionally award a badge and redirect to the my badges page.
  19  *
  20  * @package    core_badges
  21  * @copyright  2019 Damyon Wiese
  22  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 require_once(__DIR__ . '/../config.php');
  26 require_once($CFG->libdir . '/badgeslib.php');
  27
  28 if (badges_open_badges_backpack_api() != OPEN_BADGES_V2) {
  29     throw new coding_exception('No backpacks support Open Badges V2.');
  30 }
  31
  32 require_login();
  33
  34 $id = required_param('hash', PARAM_ALPHANUM);
  35
  36 $PAGE->set_url('/badges/backpack-add.php', array('hash' => $id));
  37 $PAGE->set_context(context_system::instance());
  38 $output = $PAGE->get_renderer('core', 'badges');
  39
  40 $issuedbadge = new \core_badges\output\issued_badge($id);
  41 if (!empty($issuedbadge->recipient->id)) {
  42     // The flow for issuing a badge is:
  43     // * Create issuer
  44     // * Create badge
  45     // * Create assertion (Award the badge!)
  46
  47     // Get the backpack.
  48     $badgeid = $issuedbadge->badgeid;
  49     $badge = new badge($badgeid);
  50     $backpack = $DB->get_record('badge_backpack', array('userid' => $USER->id));
  51     $sitebackpack = badges_get_site_backpack($backpack->externalbackpackid);
  52     $assertion = new core_badges_assertion($id, $sitebackpack->apiversion);
  53     $api = new \core_badges\backpack_api($sitebackpack);
  54     $api->authenticate();
  55
  56     // Create issuer.
  57     $issuer = $assertion->get_issuer();
  58     if (!($issuerentityid = badges_external_get_mapping($sitebackpack->id, OPEN_BADGES_V2_TYPE_ISSUER, $issuer['email']))) {
  59         $response = $api->put_issuer($issuer);
  60         if (!$response) {
  61             throw new moodle_exception('invalidrequest', 'error');
  62         }
  63         $issuerentityid = $response->id;
  64         badges_external_create_mapping($sitebackpack->id, OPEN_BADGES_V2_TYPE_ISSUER, $issuer['email'], $issuerentityid);
  65     }
  66     // Create badge.
  67     $badge = $assertion->get_badge_class(false);
  68     $badgeid = $assertion->get_badge_id();
  69     if (!($badgeentityid = badges_external_get_mapping($sitebackpack->id, OPEN_BADGES_V2_TYPE_BADGE, $badgeid))) {
  70         $response = $api->put_badgeclass($issuerentityid, $badge);
  71         if (!$response) {
  72             throw new moodle_exception('invalidrequest', 'error');
  73         }
  74         $badgeentityid = $response->id;
  75         badges_external_create_mapping($sitebackpack->id, OPEN_BADGES_V2_TYPE_BADGE, $badgeid, $badgeentityid);
  76     }
  77
  78     // Create assertion (Award the badge!).
  79     $assertiondata = $assertion->get_badge_assertion(false, false);
  80
  81     $assertionid = $assertion->get_assertion_hash();
  82
  83     if (!($assertionentityid = badges_external_get_mapping($sitebackpack->id, OPEN_BADGES_V2_TYPE_ASSERTION, $assertionid))) {
  84         $response = $api->put_badgeclass_assertion($badgeentityid, $assertiondata);
  85         if (!$response) {
  86             throw new moodle_exception('invalidrequest', 'error');
  87         }
  88         $assertionentityid = $response->id;
  89         badges_external_create_mapping($sitebackpack->id, OPEN_BADGES_V2_TYPE_ASSERTION, $assertionid, $assertionentityid);
  90         $response = ['success' => 'addedtobackpack'];
  91     } else {
  92         $response = ['warning' => 'existsinbackpack'];
  93     }
  94     redirect(new moodle_url('/badges/mybadges.php', $response));
  95 } else {
  96     redirect(new moodle_url('/badges/mybadges.php'));
  97 }