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Fixes EMDL-606 EMDL-605 EMDL-604 EMDL-578
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Original file line number | Diff line number | Diff line change |
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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/>. | ||
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/** | ||
* This script processes ajax timer equests during the quiz. | ||
* | ||
* @package quizaccess_wifiresilience | ||
* @copyright 2017 ETH Zurich ([email protected]) | ||
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later | ||
*/ | ||
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define('AJAX_SCRIPT', true); | ||
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require_once(__DIR__ . '/../../../../config.php'); | ||
require_once($CFG->dirroot . '/mod/quiz/locallib.php'); | ||
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// Remember the current time as the time any responses were submitted. | ||
// (so as to make sure students don't get penalized for slow processing on this page). | ||
$timenow = time(); | ||
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// Get submitted parameters. | ||
$attemptid = required_param('attempt', PARAM_INT); | ||
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$transaction = $DB->start_delegated_transaction(); | ||
$attemptobj = quiz_attempt::create($attemptid); | ||
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// Check login. | ||
if (!isloggedin() || !confirm_sesskey()) { | ||
echo json_encode(array('result' => 'lostsession')); | ||
die; | ||
} | ||
require_login($attemptobj->get_course(), false, $attemptobj->get_cm()); | ||
require_sesskey(); | ||
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// Check that this attempt belongs to this user. | ||
if ($attemptobj->get_userid() != $USER->id) { | ||
throw new moodle_quiz_exception($attemptobj->get_quizobj(), 'notyourattempt'); | ||
} | ||
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// Check capabilities. | ||
if (!$attemptobj->is_preview_user()) { | ||
$attemptobj->require_capability('mod/quiz:attempt'); | ||
} | ||
$options = $attemptobj->get_display_options(false); | ||
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// If the attempt is already closed, send them to the review page. | ||
if ($attemptobj->is_finished()) { | ||
throw new moodle_quiz_exception($attemptobj->get_quizobj(), | ||
'attemptalreadyclosed', null, $attemptobj->review_url()); | ||
} | ||
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$accessmanager = $attemptobj->get_quizobj()->get_access_manager(time()); | ||
$endtime = $accessmanager->get_end_time($attemptobj); | ||
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if ($endtime === false) { | ||
$endtime = 0; | ||
} | ||
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$timeleft = $attemptobj->get_time_left_display(time()); | ||
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if ($timeleft !== false) { | ||
$ispreview = $attemptobj->is_preview(); | ||
$timerstartvalue = $timeleft; | ||
if (!$ispreview) { | ||
/* | ||
Make sure the timer starts just above zero. If $timeleft was <= 0, then | ||
this will just have the effect of causing the quiz to be submitted immediately. | ||
*/ | ||
$timerstartvalue = max($timerstartvalue, 1); | ||
} | ||
} else { | ||
$timerstartvalue = 0; | ||
} | ||
$result = array(); | ||
$result['result'] = 'OK'; | ||
$result['timerstartvalue'] = $timerstartvalue; | ||
$result['timelimit'] = $endtime; | ||
echo json_encode($result); |
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