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// GNU General Public License for more details.
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// GNU General Public License for more details.
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//
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//
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// You should have received a copy of the GNU General Public License
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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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// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
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/**
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 * Badge assertion library.
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 *
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 * @package    core
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 * @subpackage badges
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 * @copyright  2012 onwards Totara Learning Solutions Ltd {@link http://www.totaralms.com/}
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 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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 * @author     Yuliya Bozhko <yuliya.bozhko@totaralms.com>
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 */
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defined('MOODLE_INTERNAL') || die();
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defined('MOODLE_INTERNAL') || die();
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/**
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/**
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 * Open Badges Assertions specification 2.0
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 * Open Badges Assertions specification 1.0 {@link https://github.com/mozilla/openbadges-backpack/wiki/Assertions}
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 * {@link https://www.imsglobal.org/sites/default/files/Badges/OBv2p0Final/index.html#Assertion}
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 *
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 *
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 * Badge asserion is defined by three parts:
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 * Badge assertion is defined by three parts:
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 * - Badge Assertion (information regarding a specific badge that was awarded to a badge earner)
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 * - Badge Assertion (information regarding a specific badge that was awarded to a badge earner)
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 * - Badge Class (general information about a badge and what it is intended to represent)
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 * - Badge Class (general information about a badge and what it is intended to represent)
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 * - Issuer Class (general information of an issuing organisation)
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 * - Issuer Class (general information of an issuing organisation)
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 */
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 */
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require_once($CFG->libdir . '/badgeslib.php');
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require_once($CFG->libdir . '/badgeslib.php');
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require_once($CFG->dirroot . '/badges/renderer.php');
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require_once($CFG->dirroot . '/badges/renderer.php');
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/**
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 * Class that represents badge assertion.
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 *
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 * @package    core_badges
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/**
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 * @copyright  2012 onwards Totara Learning Solutions Ltd {@link http://www.totaralms.com/}
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 * Class that represents badge assertion.
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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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 * @author     Yuliya Bozhko <yuliya.bozhko@totaralms.com>
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 */
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 */
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            $params = ['id' => $this->get_badge_id()];
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            $params = ['id' => $this->get_badge_id()];
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            $badgeurl = new moodle_url('/badges/badgeclass.php', $params);
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            $badgeurl = new moodle_url('/badges/badgeclass.php', $params);
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            $class['criteria'] = $badgeurl->out(false); // Currently badge URL.
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            $class['criteria'] = $badgeurl->out(false); // Currently badge URL.
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            if ($issued) {
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            if ($issued) {
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                $params = ['id' => $this->get_badge_id(), 'obversion' => $this->_obversion];
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                $params = ['id' => $this->get_badge_id()];
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                $issuerurl = new moodle_url('/badges/issuer_json.php', $params);
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                $issuerurl = new moodle_url('/badges/issuer_json.php', $params);
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                $class['issuer'] = $issuerurl->out(false);
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                $class['issuer'] = $issuerurl->out(false);
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            }
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            }
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            $tags = $this->get_tags();
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            $tags = $this->get_tags();
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     * Get badge issuer information.
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     * Get badge issuer information.
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     *
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     *
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     * @return array Issuer information.
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     * @return array Issuer information.
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     */
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     */
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    public function get_issuer() {
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    public function get_issuer() {
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        global $CFG;
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        $issuer = array();
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        if ($this->_data) {
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            // Required.
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            if ($this->_obversion == OPEN_BADGES_V1) {
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                $issuer['name'] = $this->_data->issuername;
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                $issuer['url'] = $this->_data->issuerurl;
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                // Optional.
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                if (!empty($this->_data->issuercontact)) {
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                    $issuer['email'] = $this->_data->issuercontact;
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                } else {
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                    $issuer['email'] = $CFG->badges_defaultissuercontact;
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                }
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            } else {
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                $badge = new badge($this->get_badge_id());
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        $badge = new badge($this->get_badge_id());
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                $issuer = $badge->get_badge_issuer();
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        $issuer = $badge->get_badge_issuer();
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            }
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        }
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        $this->embed_data_badge_version2($issuer, OPEN_BADGES_V2_TYPE_ISSUER);
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        $this->embed_data_badge_version2($issuer, OPEN_BADGES_V2_TYPE_ISSUER);
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        return $issuer;
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        return $issuer;
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    }
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    }
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                $json['issuer'] = $this->get_issuer();
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                $json['issuer'] = $this->get_issuer();
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                $json['@language'] = $this->_data->language;
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                $json['@language'] = $this->_data->language;
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                if (!empty($relatedbadges = $this->get_related_badges($badge))) {
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                if (!empty($relatedbadges = $this->get_related_badges($badge))) {
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                    $json['related'] = $relatedbadges;
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                    $json['related'] = $relatedbadges;
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                }
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                }
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                if ($endorsement = $this->get_endorsement()) {
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                    $endorsementurl = new moodle_url('/badges/endorsement_json.php', array('id' => $this->_data->id));
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                    $json['endorsement'] = $endorsementurl->out(false);
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                }
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                if ($alignments = $this->get_alignments()) {
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                if ($alignments = $this->get_alignments()) {
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                    $json['alignments'] = $alignments;
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                    $json['alignments'] = $alignments;
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                }
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                }
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                if ($this->_data->imageauthorname ||
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                        $this->_data->imageauthoremail ||
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                        $this->_data->imageauthorurl ||
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                        $this->_data->imagecaption) {
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                if ($this->_data->imagecaption) {
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                    $storage = get_file_storage();
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                    $storage = get_file_storage();
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                    $imagefile = $storage->get_file($context->id, 'badges', 'badgeimage', $this->_data->id, '/', 'f3.png');
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                    $imagefile = $storage->get_file($context->id, 'badges', 'badgeimage', $this->_data->id, '/', 'f3.png');
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                    if ($imagefile) {
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                    if ($imagefile) {
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                        $imagedata = base64_encode($imagefile->get_content());
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                        $imagedata = base64_encode($imagefile->get_content());
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                    } else {
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                    } else {