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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Lib API functions.
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*
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* @package report_usersessions
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* @copyright 2014 Totara Learning Solutions Ltd {@link http://www.totaralms.com/}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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* @author Petr Skoda <petr.skoda@totaralms.com>
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*/
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defined('MOODLE_INTERNAL') || die;
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require_once(__DIR__ . '/lib.php');
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/**
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* Show user friendly duration since last activity.
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*
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* @param int $duration in seconds
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* @return string
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*/
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function report_usersessions_format_duration($duration) {
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// NOTE: The session duration is not accurate thanks to
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// $CFG->session_update_timemodified_frequency setting.
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// Also there is no point in showing days here because
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// the session cleanup should purge all stale sessions
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// regularly.
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if ($duration < 60) {
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return get_string('now');
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}
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if ($duration < 60 * 60 * 2) {
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$minutes = (int)($duration / 60);
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$ago = $minutes . ' ' . get_string('minutes');
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return get_string('ago', 'core_message', $ago);
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}
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$hours = (int)($duration / (60 * 60));
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$ago = $hours . ' ' . get_string('hours');
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return get_string('ago', 'core_message', $ago);
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}
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/**
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* Show some user friendly IP address info.
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*
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* @param string $ip
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* @return string
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*/
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function report_usersessions_format_ip($ip) {
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if (strpos($ip, ':') !== false) {
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// For now ipv6 is not supported yet.
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return $ip;
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}
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$url = new moodle_url('/iplookup/index.php', array('ip' => $ip));
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return html_writer::link($url, $ip);
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}
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/**
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* Kill user session.
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*
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* @param int $id
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* @return void
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*/
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function report_usersessions_kill_session($id) {
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global $DB, $USER;
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$session = $DB->get_record('sessions', array('id' => $id, 'userid' => $USER->id), 'id, sid');
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if (!$session or $session->sid === session_id()) {
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// Do not delete the current session!
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return;
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}
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\core\session\manager::kill_session($session->sid);
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}
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