function cleanUp()
{
global $admin;
$msgLifeSpan = $admin['msgLifeSpan'];
$chatSessionLifeSpan = $admin['chatSessionLifeSpan'];
$chatIDLifeSpan = $admin['chatIDLifeSpan'];
$now = time();
if (!$msgLifeSpan || !$chatSessionLifeSpan || !$chatIDLifeSpan) {
echo 'Nope, something missing: ' . $msgLifeSpan . ', ' . $chatSessionLifeSpan . ', ' . $chatIDLifeSpan . '<br />';
} else {
/* Clean up messages */
if ($dir = @opendir(AT_CONTENT_DIR . 'chat/' . $_SESSION['course_id'] . '/msgs/')) {
while (($file = readdir($dir)) !== false) {
if (substr($file, -strlen('.message')) == '.message') {
$info = @stat(AT_CONTENT_DIR . 'chat/' . $_SESSION['course_id'] . '/msgs/' . $file);
if ($now - $info['mtime'] > $msgLifeSpan) {
unlink(AT_CONTENT_DIR . 'chat/' . $_SESSION['course_id'] . '/msgs/' . $file);
}
}
}
}
/* Clean up inactive users (doesn't delete the users, just logs them out) */
if ($dir = @opendir(AT_CONTENT_DIR . 'chat/' . $_SESSION['course_id'] . '/users/')) {
while (($file = readdir($dir)) !== false) {
if (substr($file, -strlen('.prefs')) == '.prefs') {
$chatName = substr($file, 0, -strlen('.prefs'));
$la = getLastAccessed($chatName);
if ($now - $la > $chatSessionLifeSpan && $la > 0) {
postMessage('system', 'User ' . $chatName . ' has been logged out due to inactivity.', $topMsgNum, $bottomMsgNum);
resetLastAccessed($chatName);
}
}
}
}
}
}
</a></td></tr></table>
<br /><br />
<table width="100%" border="0" cellpadding="5" cellspacing="0"><tr>
<th
align="left"><?php
echo _AT('chat_list_and_history');
?>
</th></tr></table><?php
echo '<ul>';
if ($dir = opendir(AT_CONTENT_DIR . 'chat/' . $_SESSION['course_id'] . '/users/')) {
while (($file = readdir($dir)) !== false) {
if ($file == '..' || $file == '.') {
continue;
}
$chatName = substr($file, 0, -strlen('.prefs'));
$la = getLastAccessed($chatName);
$now = time();
if ($la == 0 || !$la) {
$la = 0;
} else {
if ($now - $la < $admin['chatSessionLifeSpan']) {
$colour = getChatIDColour($chatName, $myPrefs['colours']);
if ($chatName == $_SESSION['login']) {
echo '<li><a href="filterHistory.php?filterChatID=' . $chatName . '" target="_top" onfocus="this.className=\'highlight\'" onblur="this.className=\'\'"><span style="color:' . $colour . '">' . $chatName . '</span></a> (' . _AT('chat_you') . ')</li>';
} else {
if ($chatName != '') {
echo '<li><a href="filterHistory.php?filterChatID=' . $chatName . '" target="_top" onfocus="this.className=\'highlight\'" onblur="this.className=\'\'"><span style="color:' . $colour . '">' . $chatName . '</span></a></li>';
}
}
} else {
resetLastAccessed($chatName);
