Hack review.php to reprint certificates without course access

index.php

@@ -4,7 +4,7 @@ require_once("../../config.php");
 global $DB;
 
 // Prepare page
-$context = get_context_instance(CONTEXT_SYSTEM);
+$context = context_system::instance(); // get_context_instance(CONTEXT_SYSTEM);
 $PAGE->set_pagelayout('standard');
 $PAGE->set_url('/blocks/get_certificate/index.php');
 $PAGE->set_context($context);
@@ -27,8 +27,7 @@ foreach ($issues as $issue) {
     $certificate = $DB->get_record('certificate', array('id' => $issue->certificateid));
     $course = $DB->get_record('course', array('id' => $certificate->course));
     $cm = get_coursemodule_from_instance('certificate', $certificate->id);
-//    $link = html_writer::link(new moodle_url('/mod/certificate/review.php', array('id'=>$cm->id, 'action'=>'get')), $icon);
-    $url = new moodle_url('/mod/certificate/review.php', array('id'=>$cm->id, 'action'=>'get'));
+    $url = new moodle_url('/blocks/get_certificate/review.php', array('id'=>$cm->id, 'action'=>'get'));
     $action = new popup_action('click', $url, 'view'.$cm->id, array('height' => 600, 'width' => 800));
     $link = new action_link($url, $icon, $action);
     $line = array($issue->code, userdate($issue->timecreated), $course->fullname, $OUTPUT->render($link));

review.php

@@ -0,0 +1,104 @@
+<?php
+
+// This file is part of the Certificate module for 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/>.
+
+/**
+ * This page reviews a certificate
+ *
+ * @package    mod_certificate
+ * @copyright  Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require_once('../../config.php');
+require_once("$CFG->dirroot/mod/certificate/locallib.php");
+require_once("$CFG->libdir/pdflib.php");
+
+// Retrieve any variables that are passed
+$id = required_param('id', PARAM_INT);    // Course Module ID
+$action = optional_param('action', '', PARAM_ALPHA);
+
+if (!$cm = get_coursemodule_from_id('certificate', $id)) {
+    print_error('Course Module ID was incorrect');
+}
+
+if (!$course = $DB->get_record('course', array('id'=> $cm->course))) {
+    print_error('course is misconfigured');
+}
+
+if (!$certificate = $DB->get_record('certificate', array('id'=> $cm->instance))) {
+    print_error('course module is incorrect');
+}
+
+// Requires just system login
+require_login();
+
+// Check the capabilities
+$context = context_module::instance($cm->id);
+require_capability('mod/certificate:view', $context);
+
+// Initialize $PAGE, compute blocks
+$PAGE->set_url('/blocks/get_certificate/review.php', array('id' => $cm->id));
+$PAGE->set_context($context);
+$PAGE->set_cm($cm);
+$PAGE->set_title(format_string($certificate->name));
+$PAGE->set_heading(format_string($course->fullname));
+
+// Get previous cert record
+if (!$certrecord = $DB->get_record('certificate_issues', array('userid' => $USER->id, 'certificateid' => $certificate->id))) {
+    notice(get_string('nocertificatesissued', 'certificate'), "$CFG->wwwroot/course/view.php?id=$course->id");
+    die;
+}
+
+// Load the specific certificatetype
+require ("$CFG->dirroot/mod/certificate/type/$certificate->certificatetype/certificate.php");
+
+if ($action) {
+    $filename = certificate_get_certificate_filename($certificate, $cm, $course) . '.pdf';
+    $filecontents = $pdf->Output('', 'S');
+    // Open in browser.
+    send_file($filecontents, $filename, 0, 0, true, false, 'application/pdf');
+    exit();
+}
+
+echo $OUTPUT->header();
+
+$reviewurl = new moodle_url('/blocks/get_certificate/review.php', array('id' => $cm->id));
+groups_print_activity_menu($cm, $reviewurl);
+$currentgroup = groups_get_activity_group($cm);
+$groupmode = groups_get_activity_groupmode($cm);
+
+if (has_capability('mod/certificate:manage', $context)) {
+    $numusers = count(certificate_get_issues($certificate->id, 'ci.timecreated ASC', $groupmode, $cm));
+    $url = html_writer::tag('a', get_string('viewcertificateviews', 'certificate', $numusers),
+        array('href' => $CFG->wwwroot . '/mod/certificate/report.php?id=' . $cm->id));
+    echo html_writer::tag('div', $url, array('class' => 'reportlink'));
+}
+
+if (!empty($certificate->intro)) {
+    echo $OUTPUT->box(format_module_intro('certificate', $certificate, $cm->id), 'generalbox', 'intro');
+}
+
+echo html_writer::tag('p', get_string('viewed', 'certificate'). '<br />' . userdate($certrecord->timecreated), array('style' => 'text-align:center'));
+
+$link = new moodle_url('/blocks/get_certificate/review.php?id='.$cm->id.'&action=get');
+$linkname = get_string('reviewcertificate', 'certificate');
+$button = new single_button($link, $linkname);
+$button->add_action(new popup_action('click', $link, array('height' => 600, 'width' => 800)));
+
+echo html_writer::tag('div', $OUTPUT->render($button), array('style' => 'text-align:center'));
+
+echo $OUTPUT->footer($course);