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<?php
// $Id$
/**
* @file
* System monitoring and logging for administrators.
*
* The watchdog module monitors your site and keeps a list of
* recorded events containing usage and performance data, errors,
* warnings, and similar operational information.
*
* @see watchdog().
*/
/**
* Implementation of hook_help().
*/
function watchdog_help($section = 'admin/help#watchdog') {
switch ($section) {
case 'admin/help#watchdog':
return t('<p>The watchdog module monitors your web site, capturing system events in a log to be reviewed by an authorized individual at a later time. The watchdog log is simply a list of recorded events containing usage data, performance data, errors, warnings and operational information. It is vital to <a href="%watchdog">check the watchdog report</a> on a regular basis as it is often the only way to tell what is going on.</p>', array('%watchdog' => url('admin/logs')));
case 'admin/logs':
return t('<p>The watchdog module monitors your web site, capturing system events in a log to be reviewed by an authorized individual at a later time. The watchdog log is simply a list of recorded events containing usage data, performance data, errors, warnings and operational information. It is vital to check the watchdog report on a regular basis as it is often the only way to tell what is going on.</p>');
case 'admin/modules#description':
return t('Logs and records system events.');
}
}
/**
* Implementation of hook_menu().
*/
function watchdog_menu($may_cache) {
$items = array();
if ($may_cache) {
$items[] = array('path' => 'admin/logs', 'title' => t('logs'),
'callback' => 'watchdog_overview', 'access' => user_access('administer watchdog'));
$items[] = array('path' => 'admin/logs/event', 'title' => t('details'),
'callback' => 'watchdog_event', 'access' => user_access('administer watchdog'),
'type' => MENU_CALLBACK);
}
return $items;
}
/**
* Implementation of hook_perm().
*/
function watchdog_perm() {
return array('administer watchdog');
}
/**
* Implementation of hook_cron().
*
* Remove expired log messages and flood control events.
*/
function watchdog_cron() {
db_query('DELETE FROM {watchdog} WHERE timestamp < %d', time() - variable_get('watchdog_clear', 604800));
db_query('DELETE FROM {flood} WHERE timestamp < %d', time() - 3600);
}
/**
* Menu callback; displays a listing of log messages.
*/
function watchdog_overview() {
$icons = array(WATCHDOG_NOTICE => '',
WATCHDOG_WARNING => theme('image', 'misc/watchdog-warning.png', t('warning'), t('warning')),
WATCHDOG_ERROR => theme('image', 'misc/watchdog-error.png', t('error'), t('error')));
$classes = array(WATCHDOG_NOTICE => 'watchdog-notice', WATCHDOG_WARNING => 'watchdog-warning', WATCHDOG_ERROR => 'watchdog-error');
$names['all'] = t('all messages');
$queries['all'] = '';
foreach (_watchdog_get_message_types() as $type) {
$names[$type] = t('%type messages', array('%type' => $type));
$queries[$type] = "WHERE type = '". db_escape_string($type) ."'";
}
if (empty($_SESSION['watchdog_overview_filter'])) {
$_SESSION['watchdog_overview_filter'] = 'all';
}
$op = $_POST['op'];
if ($op == t('Filter') && isset($_POST['edit']['filter'])) {
$_SESSION['watchdog_overview_filter'] = $_POST['edit']['filter'];
}
$form = form_select(t('Filter by message type'), 'filter', $_SESSION['watchdog_overview_filter'], $names);
$form .= form_submit(t('Filter'));
$header = array(
' ',
array('data' => t('Type'), 'field' => 'w.type'),
array('data' => t('Date'), 'field' => 'w.timestamp', 'sort' => 'desc'),
array('data' => t('Message'), 'field' => 'w.message'),
array('data' => t('User'), 'field' => 'u.name'),
array('data' => t('Operations'), 'colspan' => '2')
);
$sql = 'SELECT w.*, u.name, u.uid FROM {watchdog} w INNER JOIN {users} u ON w.uid = u.uid '. $queries[$_SESSION['watchdog_overview_filter']] . tablesort_sql($header);
$result = pager_query($sql, 50);
while ($watchdog = db_fetch_object($result)) {
$rows[] = array('data' =>
array(
// Cells
$icons[$watchdog->severity],
$watchdog->type,
format_date($watchdog->timestamp, 'small'),
truncate_utf8($watchdog->message, 64),
format_name($watchdog),
$watchdog->link,
l(t('details'), "admin/logs/event/$watchdog->wid")
),
// Attributes for tr
'class' => "watchdog-". preg_replace('/[^a-z]/i', '-', $watchdog->type) .' '. $classes[$watchdog->severity]
);
}
if (!$rows) {
$rows[] = array(array('data' => t('No log messages available.'), 'colspan' => '7'));
}
$pager = theme('pager', NULL, 50, 0, tablesort_pager());
if (!empty($pager)) {
$rows[] = array(array('data' => $pager, 'colspan' => '7'));
}
$output = '<div class="container-inline">'. form($form) .'</div>';
$output .= theme('table', $header, $rows);
print theme('page', $output);
}
/**
* Menu callback; displays details about a log message.
*/
function watchdog_event($id) {
$severity = array(WATCHDOG_NOTICE => t('notice'), WATCHDOG_WARNING => t('warning'), WATCHDOG_ERROR => t('error'));
$output = '';
$result = db_query('SELECT w.*, u.name, u.uid FROM {watchdog} w INNER JOIN {users} u ON w.uid = u.uid WHERE w.wid = %d', $id);
if ($watchdog = db_fetch_object($result)) {
$output .= '<table border="1" cellpadding="2" cellspacing="2">';
$output .= ' <tr><th>'. t('Type') ."</th><td>$watchdog->type</td></tr>";
$output .= ' <tr><th>'. t('Date') .'</th><td>'. format_date($watchdog->timestamp, 'large') .'</td></tr>';
$output .= ' <tr><th>'. t('User') .'</th><td>'. format_name($watchdog) .'</td></tr>';
$output .= ' <tr><th>'. t('Location') ."</th><td>". l($watchdog->location, $watchdog->location) ."</td></tr>";
$output .= ' <tr><th>'. t('Message') ."</th><td>$watchdog->message</td></tr>";
$output .= ' <tr><th>'. t('Severity') .'</th><td>'. $severity[$watchdog->severity] .'</td></tr>';
$output .= ' <tr><th>'. t('Hostname') ."</th><td>$watchdog->hostname</td></tr>";
$output .= '</table>';
}
print theme('page', $output);
}
function _watchdog_get_message_types() {
$types = array();
$result = db_query('SELECT DISTINCT(type) FROM {watchdog} ORDER BY type');
while ($object = db_fetch_object($result)) {
$types[] = $object->type;
}
return $types;
}
?>
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