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<?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/>.
/**
* This script displays a particular page of a quiz attempt that is in progress.
*
* @package mod_quiz
* @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once(__DIR__ . '/../../config.php');
require_once($CFG->dirroot . '/mod/quiz/locallib.php');
// Look for old-style URLs, such as may be in the logs, and redirect them to startattemtp.php.
if ($id = optional_param('id', 0, PARAM_INT)) {
redirect($CFG->wwwroot . '/mod/quiz/startattempt.php?cmid=' . $id . '&sesskey=' . sesskey());
} else if ($qid = optional_param('q', 0, PARAM_INT)) {
if (!$cm = get_coursemodule_from_instance('quiz', $qid)) {
print_error('invalidquizid', 'quiz');
}
redirect(new moodle_url('/mod/quiz/startattempt.php',
array('cmid' => $cm->id, 'sesskey' => sesskey())));
}
// Get submitted parameters.
$attemptid = required_param('attempt', PARAM_INT);
$page = optional_param('page', 0, PARAM_INT);
$cmid = optional_param('cmid', null, PARAM_INT);
$attemptobj = quiz_create_attempt_handling_errors($attemptid, $cmid);
$page = $attemptobj->force_page_number_into_range($page);
$PAGE->set_url($attemptobj->attempt_url(null, $page));
// Check login.
require_login($attemptobj->get_course(), false, $attemptobj->get_cm());
// Check that this attempt belongs to this user.
if ($attemptobj->get_userid() != $USER->id) {
if ($attemptobj->has_capability('mod/quiz:viewreports')) {
redirect($attemptobj->review_url(null, $page));
} else {
throw new moodle_quiz_exception($attemptobj->get_quizobj(), 'notyourattempt');
}
}
// Check capabilities and block settings.
if (!$attemptobj->is_preview_user()) {
$attemptobj->require_capability('mod/quiz:attempt');
if (empty($attemptobj->get_quiz()->showblocks)) {
$PAGE->blocks->show_only_fake_blocks();
}
} else {
navigation_node::override_active_url($attemptobj->start_attempt_url());
}
// If the attempt is already closed, send them to the review page.
if ($attemptobj->is_finished()) {
redirect($attemptobj->review_url(null, $page));
} else if ($attemptobj->get_state() == quiz_attempt::OVERDUE) {
redirect($attemptobj->summary_url());
}
// Check the access rules.
$accessmanager = $attemptobj->get_access_manager(time());
$accessmanager->setup_attempt_page($PAGE);
$output = $PAGE->get_renderer('mod_quiz');
$messages = $accessmanager->prevent_access();
if (!$attemptobj->is_preview_user() && $messages) {
print_error('attempterror', 'quiz', $attemptobj->view_url(),
$output->access_messages($messages));
}
if ($accessmanager->is_preflight_check_required($attemptobj->get_attemptid())) {
redirect($attemptobj->start_attempt_url(null, $page));
}
// Set up auto-save if required.
$autosaveperiod = get_config('quiz', 'autosaveperiod');
if ($autosaveperiod) {
$PAGE->requires->yui_module('moodle-mod_quiz-autosave',
'M.mod_quiz.autosave.init', array($autosaveperiod));
}
// Log this page view.
$attemptobj->fire_attempt_viewed_event();
// Get the list of questions needed by this page.
$slots = $attemptobj->get_slots($page);
// Check.
if (empty($slots)) {
throw new moodle_quiz_exception($attemptobj->get_quizobj(), 'noquestionsfound');
}
// Update attempt page, redirecting the user if $page is not valid.
if (!$attemptobj->set_currentpage($page)) {
redirect($attemptobj->start_attempt_url(null, $attemptobj->get_currentpage()));
}
// Initialise the JavaScript.
$headtags = $attemptobj->get_html_head_contributions($page);
$PAGE->requires->js_init_call('M.mod_quiz.init_attempt_form', null, false, quiz_get_js_module());
// Arrange for the navigation to be displayed in the first region on the page.
$navbc = $attemptobj->get_navigation_panel($output, 'quiz_attempt_nav_panel', $page);
$regions = $PAGE->blocks->get_regions();
$PAGE->blocks->add_fake_block($navbc, reset($regions));
$headtags = $attemptobj->get_html_head_contributions($page);
$PAGE->set_title($attemptobj->attempt_page_title($page));
$PAGE->set_heading($attemptobj->get_course()->fullname);
if ($attemptobj->is_last_page($page)) {
$nextpage = -1;
} else {
$nextpage = $page + 1;
}
echo $output->attempt_page($attemptobj, $page, $accessmanager, $messages, $slots, $id, $nextpage);