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See Release Notes

  • Bug fixes for general core bugs in 4.2.x will end 22 April 2024 (12 months).
  • Bug fixes for security issues in 4.2.x will end 7 October 2024 (18 months).
  • PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.1.x is supported too.
<?php
// This file is part of 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/>.

/**
 * Process ajax requests
 *
 * @package assignfeedback_editpdf
 * @copyright  2012 Davo Smith
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

use \assignfeedback_editpdf\document_services;
use \assignfeedback_editpdf\combined_document;
use \assignfeedback_editpdf\page_editor;
use \assignfeedback_editpdf\comments_quick_list;

define('AJAX_SCRIPT', true);

require('../../../../config.php');
require_once($CFG->dirroot . '/mod/assign/locallib.php');

require_sesskey();

$action = optional_param('action', '', PARAM_ALPHANUM);
$assignmentid = required_param('assignmentid', PARAM_INT);
$userid = required_param('userid', PARAM_INT);
$attemptnumber = required_param('attemptnumber', PARAM_INT);
$readonly = optional_param('readonly', false, PARAM_BOOL);

$cm = \get_coursemodule_from_instance('assign', $assignmentid, 0, false, MUST_EXIST);
$context = \context_module::instance($cm->id);

$assignment = new \assign($context, null, null);

require_login($assignment->get_course(), false, $cm);

if (!$assignment->can_view_submission($userid)) {
< print_error('nopermission');
> throw new \moodle_exception('nopermission');
} if ($action === 'pollconversions') { // Poll conversions does not require session lock. \core\session\manager::write_close(); $draft = true; if (!has_capability('mod/assign:grade', $context)) { // A student always sees the readonly version. $readonly = true; $draft = false; require_capability('mod/assign:submit', $context); } if ($readonly) { // Whoever is viewing the readonly version should not use the drafts, but the actual annotations. $draft = false; } // Get a lock for the PDF/Image conversion of the assignment files. $lockfactory = \core\lock\lock_config::get_lock_factory('assignfeedback_editpdf_pollconversions');
< $resource = "user:${userid},assignmentid:${assignmentid},attemptnumber:${attemptnumber}";
> $resource = "user:{$userid},assignmentid:{$assignmentid},attemptnumber:{$attemptnumber}";
$lock = $lockfactory->get_lock($resource, 0); // Could not get lock, send back JSON to poll again. if (!$lock) { echo json_encode([ 'status' => 0 ]); die(); } // Obtained lock, now process the assignment conversion. try { $response = (object) [ 'status' => -1, 'filecount' => 0, 'pagecount' => 0, 'pageready' => 0, 'partial' => false, 'pages' => [], ]; $combineddocument = document_services::get_combined_document_for_attempt($assignment, $userid, $attemptnumber); $response->status = $combineddocument->get_status(); $response->filecount = $combineddocument->get_document_count(); $readystatuslist = [combined_document::STATUS_READY, combined_document::STATUS_READY_PARTIAL]; $completestatuslist = [combined_document::STATUS_COMPLETE, combined_document::STATUS_FAILED]; if (in_array($response->status, $readystatuslist)) { // It seems that the files for this submission haven't been combined in cron yet. // Try to combine them in the user session. $combineddocument = document_services::get_combined_pdf_for_attempt($assignment, $userid, $attemptnumber); $response->status = $combineddocument->get_status(); $response->filecount = $combineddocument->get_document_count(); } if (in_array($response->status, $completestatuslist)) { $pages = document_services::get_page_images_for_attempt($assignment, $userid, $attemptnumber, $readonly); $response->pagecount = $combineddocument->get_page_count(); $grade = $assignment->get_user_grade($userid, true, $attemptnumber); // The readonly files are stored in a different file area. $filearea = document_services::PAGE_IMAGE_FILEAREA; if ($readonly) { $filearea = document_services::PAGE_IMAGE_READONLY_FILEAREA; } $response->partial = $combineddocument->is_partial_conversion(); foreach ($pages as $id => $pagefile) { $index = count($response->pages); $page = new stdClass(); $comments = page_editor::get_comments($grade->id, $index, $draft); $page->url = moodle_url::make_pluginfile_url($context->id, 'assignfeedback_editpdf', $filearea, $grade->id, '/', $pagefile->get_filename())->out(); $page->comments = $comments; if ($imageinfo = $pagefile->get_imageinfo()) { $page->width = $imageinfo['width']; $page->height = $imageinfo['height']; } else { $page->width = 0; $page->height = 0; } $annotations = page_editor::get_annotations($grade->id, $index, $draft); $page->annotations = $annotations; $response->pages[] = $page; } $component = 'assignfeedback_editpdf'; $filearea = document_services::PAGE_IMAGE_FILEAREA; $filepath = '/'; $fs = get_file_storage(); $files = $fs->get_directory_files($context->id, $component, $filearea, $grade->id, $filepath); $response->pageready = count($files); } } catch (\Throwable $e) { // Release lock, and re-throw exception. $lock->release(); throw $e; } echo json_encode($response); $lock->release(); die(); } else if ($action == 'savepage') { require_capability('mod/assign:grade', $context); $response = new stdClass(); $response->errors = array(); $grade = $assignment->get_user_grade($userid, true, $attemptnumber); $pagejson = required_param('page', PARAM_RAW); $page = json_decode($pagejson); $index = required_param('index', PARAM_INT); $added = page_editor::set_comments($grade->id, $index, $page->comments); if ($added != count($page->comments)) { array_push($response->errors, get_string('couldnotsavepage', 'assignfeedback_editpdf', $index+1)); } $added = page_editor::set_annotations($grade->id, $index, $page->annotations); if ($added != count($page->annotations)) { array_push($response->errors, get_string('couldnotsavepage', 'assignfeedback_editpdf', $index+1)); } echo json_encode($response); die(); } else if ($action == 'generatepdf') { require_capability('mod/assign:grade', $context); $response = new stdClass(); $grade = $assignment->get_user_grade($userid, true, $attemptnumber); $file = document_services::generate_feedback_document($assignment, $userid, $attemptnumber); $response->url = ''; if ($file) { $url = moodle_url::make_pluginfile_url($assignment->get_context()->id, 'assignfeedback_editpdf', document_services::FINAL_PDF_FILEAREA, $grade->id, '/', $file->get_filename(), false); $response->url = $url->out(true); $response->filename = $file->get_filename(); } echo json_encode($response); die(); } else if ($action == 'loadquicklist') { require_capability('mod/assign:grade', $context); $result = comments_quick_list::get_comments(); echo json_encode($result); die(); } else if ($action == 'addtoquicklist') { require_capability('mod/assign:grade', $context); $comment = required_param('commenttext', PARAM_RAW); $width = required_param('width', PARAM_INT); $colour = required_param('colour', PARAM_ALPHA); $result = comments_quick_list::add_comment($comment, $width, $colour); echo json_encode($result); die(); } else if ($action == 'revertchanges') { require_capability('mod/assign:grade', $context); $grade = $assignment->get_user_grade($userid, true, $attemptnumber); $result = page_editor::revert_drafts($gradeid); echo json_encode($result); die(); } else if ($action == 'removefromquicklist') { require_capability('mod/assign:grade', $context); $commentid = required_param('commentid', PARAM_INT); $result = comments_quick_list::remove_comment($commentid); echo json_encode($result); die(); } else if ($action == 'deletefeedbackdocument') { require_capability('mod/assign:grade', $context); $grade = $assignment->get_user_grade($userid, true, $attemptnumber); $result = document_services::delete_feedback_document($assignment, $userid, $attemptnumber); $result = $result && page_editor::unrelease_drafts($grade->id); echo json_encode($result); die(); } else if ($action == 'rotatepage') { require_capability('mod/assign:grade', $context); $response = new stdClass(); $index = required_param('index', PARAM_INT); $grade = $assignment->get_user_grade($userid, true, $attemptnumber); $rotateleft = required_param('rotateleft', PARAM_BOOL); $filearea = document_services::PAGE_IMAGE_FILEAREA; $pagefile = document_services::rotate_page($assignment, $userid, $attemptnumber, $index, $rotateleft); $page = new stdClass(); $page->url = moodle_url::make_pluginfile_url($context->id, document_services::COMPONENT, $filearea, $grade->id, '/', $pagefile->get_filename())->out(); if ($imageinfo = $pagefile->get_imageinfo()) { $page->width = $imageinfo['width']; $page->height = $imageinfo['height']; } else { $page->width = 0; $page->height = 0; } $response = (object)['page' => $page]; echo json_encode($response); die(); }