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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/>.
define('NO_MOODLE_COOKIES', true); // Session not used here.
require_once('../../../config.php');
require_once($CFG->dirroot.'/mod/chat/lib.php');
$chatsid = required_param('chat_sid', PARAM_ALPHANUM);
$beep = optional_param('beep', 0, PARAM_INT); // Beep target.
$PAGE->set_url('/mod/chat/gui_header_js/users.php', array('chat_sid' => $chatsid));
$PAGE->set_popup_notification_allowed(false);
if (!$chatuser = $DB->get_record('chat_users', array('sid' => $chatsid))) {
print_error('notlogged', 'chat');
}
// Get the minimal course.
if (!$course = $DB->get_record('course', array('id' => $chatuser->course))) {
print_error('invalidcourseid');
}
// Get the user theme and enough info to be used in chat_format_message() which passes it along to.
// No optimisation here, it would break again in future!
if (!$user = $DB->get_record('user', array('id' => $chatuser->userid, 'deleted' => 0, 'suspended' => 0))) {
print_error('invaliduser');
}
\core\session\manager::set_user($user);
$PAGE->set_pagelayout('embedded');
// Setup course, lang and theme.
$PAGE->set_course($course);
$courseid = $chatuser->course;
if (!$cm = get_coursemodule_from_instance('chat', $chatuser->chatid, $courseid)) {
print_error('invalidcoursemodule');
}
if ($beep) {
chat_send_chatmessage($chatuser, "beep $beep", 0, $cm);
$chatuser->lastmessageping = time(); // A beep is a ping.
}
$chatuser->lastping = time();
$DB->set_field('chat_users', 'lastping', $chatuser->lastping, array('id' => $chatuser->id));
$refreshurl = "users.php?chat_sid=$chatsid";
// Get list of users.
if (!$chatusers = chat_get_users($chatuser->chatid, $chatuser->groupid, $cm->groupingid)) {
print_error('errornousers', 'chat');
}
$uidles = Array();
foreach ($chatusers as $chatuser) {
$uidles[] = $chatuser->id;
}
$module = array(
'name' => 'mod_chat_header',
'fullpath' => '/mod/chat/gui_header_js/module.js',
'requires' => array('node')
);
$PAGE->requires->js_init_call('M.mod_chat_header.init_users', array($uidles), false, $module);
// Print user panel body.
$timenow = time();
$stridle = get_string('idle', 'chat');
$strbeep = get_string('beep', 'chat');
$table = new html_table();
$table->width = '100%';
$table->data = array();
foreach ($chatusers as $chatuser) {
$lastping = $timenow - $chatuser->lastmessageping;
$min = (int) ($lastping / 60);
$sec = $lastping - ($min * 60);
$min = $min < 10 ? '0'.$min : $min;
$sec = $sec < 10 ? '0'.$sec : $sec;
$idle = $min.':'.$sec;
$row = array();
$row[0] = $OUTPUT->user_picture($chatuser, array('courseid' => $courseid, 'popup' => true));
$row[1] = html_writer::start_tag('p');
$row[1] .= html_writer::start_tag('font', array('size' => '1'));
$row[1] .= fullname($chatuser).'<br />';
$row[1] .= html_writer::tag('span', $stridle . html_writer::tag('span',
$idle,
array('name' => 'uidles', 'id' => 'uidle'.$chatuser->id)),
array('class' => 'dimmed_text')) . ' ';
$row[1] .= html_writer::tag('a', $strbeep, array('href' => new moodle_url('/mod/chat/gui_header_js/users.php',
array('chat_sid' => $chatsid,
'beep' => $chatuser->id))));
$row[1] .= html_writer::end_tag('font');
$row[1] .= html_writer::end_tag('p');
$table->data[] = $row;
}
ob_start();
echo $OUTPUT->header();
echo html_writer::tag('div', html_writer::tag('a', get_string('refresh'),
array('href' => $refreshurl, 'id' => 'refreshLink')), array('style' => 'display:none'));
echo html_writer::table($table);
echo $OUTPUT->footer();
// Support HTTP Keep-Alive by printing Content-Length
//
// If the user pane is refreshing often, using keepalives
// is lighter on the server and faster for most clients.
//
// Apache is normally configured to have a 15s timeout on
// keepalives, so let's observe that. Unfortunately, we cannot
// autodetect the keepalive timeout.
//
// Using keepalives when the refresh is longer than the timeout
// wastes server resources keeping an apache child around on a
// connection that will timeout. So we don't.
if ($CFG->chat_refresh_userlist < 15) {
header("Content-Length: " . ob_get_length() );
ob_end_flush();
}
exit; // No further output.