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 * This script displays a particular page of a quiz attempt that is in progress. 19 * 20 * @package mod_quiz 21 * @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com} 22 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later 23 */ 24 25require_once(__DIR__ . '/../../config.php'); 26require_once($CFG->dirroot . '/mod/quiz/locallib.php'); 27 28// Look for old-style URLs, such as may be in the logs, and redirect them to startattemtp.php. 29if ($id = optional_param('id', 0, PARAM_INT)) { 30 redirect($CFG->wwwroot . '/mod/quiz/startattempt.php?cmid=' . $id . '&sesskey=' . sesskey()); 31} else if ($qid = optional_param('q', 0, PARAM_INT)) { 32 if (!$cm = get_coursemodule_from_instance('quiz', $qid)) { 33 print_error('invalidquizid', 'quiz'); 34 } 35 redirect(new moodle_url('/mod/quiz/startattempt.php', 36 array('cmid' => $cm->id, 'sesskey' => sesskey()))); 37} 38 39// Get submitted parameters. 40$attemptid = required_param('attempt', PARAM_INT); 41$page = optional_param('page', 0, PARAM_INT); 42$cmid = optional_param('cmid', null, PARAM_INT); 43 44$attemptobj = quiz_create_attempt_handling_errors($attemptid, $cmid); 45$page = $attemptobj->force_page_number_into_range($page); 46$PAGE->set_url($attemptobj->attempt_url(null, $page)); 47// During quiz attempts, the browser back/forwards buttons should force a reload. 48$PAGE->set_cacheable(false); 49 50// Check login. 51require_login($attemptobj->get_course(), false, $attemptobj->get_cm()); 52 53// Check that this attempt belongs to this user. 54if ($attemptobj->get_userid() != $USER->id) { 55 if ($attemptobj->has_capability('mod/quiz:viewreports')) { 56 redirect($attemptobj->review_url(null, $page)); 57 } else { 58 throw new moodle_quiz_exception($attemptobj->get_quizobj(), 'notyourattempt'); 59 } 60} 61 62// Check capabilities and block settings. 63if (!$attemptobj->is_preview_user()) { 64 $attemptobj->require_capability('mod/quiz:attempt'); 65 if (empty($attemptobj->get_quiz()->showblocks)) { 66 $PAGE->blocks->show_only_fake_blocks(); 67 } 68 69} else { 70 navigation_node::override_active_url($attemptobj->start_attempt_url()); 71} 72 73// If the attempt is already closed, send them to the review page. 74if ($attemptobj->is_finished()) { 75 redirect($attemptobj->review_url(null, $page)); 76} else if ($attemptobj->get_state() == quiz_attempt::OVERDUE) { 77 redirect($attemptobj->summary_url()); 78} 79 80// Check the access rules. 81$accessmanager = $attemptobj->get_access_manager(time()); 82$accessmanager->setup_attempt_page($PAGE); 83$output = $PAGE->get_renderer('mod_quiz'); 84$messages = $accessmanager->prevent_access(); 85if (!$attemptobj->is_preview_user() && $messages) { 86 print_error('attempterror', 'quiz', $attemptobj->view_url(), 87 $output->access_messages($messages)); 88} 89if ($accessmanager->is_preflight_check_required($attemptobj->get_attemptid())) { 90 redirect($attemptobj->start_attempt_url(null, $page)); 91} 92 93// Set up auto-save if required. 94$autosaveperiod = get_config('quiz', 'autosaveperiod'); 95if ($autosaveperiod) { 96 $PAGE->requires->yui_module('moodle-mod_quiz-autosave', 97 'M.mod_quiz.autosave.init', array($autosaveperiod)); 98} 99 100// Log this page view. 101$attemptobj->fire_attempt_viewed_event(); 102 103// Get the list of questions needed by this page. 104$slots = $attemptobj->get_slots($page); 105 106// Check. 107if (empty($slots)) { 108 throw new moodle_quiz_exception($attemptobj->get_quizobj(), 'noquestionsfound'); 109} 110 111// Update attempt page, redirecting the user if $page is not valid. 112if (!$attemptobj->set_currentpage($page)) { 113 redirect($attemptobj->start_attempt_url(null, $attemptobj->get_currentpage())); 114} 115 116// Initialise the JavaScript. 117$headtags = $attemptobj->get_html_head_contributions($page); 118$PAGE->requires->js_init_call('M.mod_quiz.init_attempt_form', null, false, quiz_get_js_module()); 119\core\session\manager::keepalive(); // Try to prevent sessions expiring during quiz attempts. 120 121// Arrange for the navigation to be displayed in the first region on the page. 122$navbc = $attemptobj->get_navigation_panel($output, 'quiz_attempt_nav_panel', $page); 123$regions = $PAGE->blocks->get_regions(); 124$PAGE->blocks->add_fake_block($navbc, reset($regions)); 125 126$headtags = $attemptobj->get_html_head_contributions($page); 127$PAGE->set_title($attemptobj->attempt_page_title($page)); 128$PAGE->set_heading($attemptobj->get_course()->fullname); 129 130if ($attemptobj->is_last_page($page)) { 131 $nextpage = -1; 132} else { 133 $nextpage = $page + 1; 134} 135 136echo $output->attempt_page($attemptobj, $page, $accessmanager, $messages, $slots, $id, $nextpage); 137