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Log.php
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Log.php
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<?php
/*
+--------------------------------------------------------------------------+
| This file is part of the Kolab Web Admin Panel |
| |
| Copyright (C) 2011-2012, Kolab Systems AG |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU Affero General Public License as published |
| by the Free Software Foundation, either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program 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 Affero General Public License for more details. |
| |
| You should have received a copy of the GNU Affero General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/> |
+--------------------------------------------------------------------------+
| Author: Aleksander Machniak <machniak@kolabsys.com> |
+--------------------------------------------------------------------------+
*/
/**
* Class for logging debug/info/warning/error messages into log file(s)
*/
class Log
{
const TRACE = 16; // use for protocol tracking: sql queries, ldap commands, etc.
const DEBUG = 8;
const INFO = 4; // use to log entry creation/update/delete etc.
const WARNING = 2;
const ERROR = 0;
private static $mode;
/**
* Logs tracing message
*
* @param string $message Log message
* @param array $args Additional arguments ('file', 'line')
*/
static function trace($message, $args = array())
{
if (self::mode() >= self::TRACE) {
self::log_message(self::TRACE, $message, $args);
}
}
/**
* Logs debug message
*
* @param string $message Log message
* @param array $args Additional arguments ('file', 'line')
*/
static function debug($message, $args = array())
{
if (self::mode() >= self::DEBUG) {
self::log_message(self::DEBUG, $message, $args);
}
}
/**
* Logs information message
*
* @param string $message Log message
* @param array $args Additional arguments ('file', 'line')
*/
static function info($message, $args = array())
{
if (self::mode() >= self::INFO) {
self::log_message(self::INFO, $message, $args);
}
}
/**
* Logs warning message
*
* @param string $message Log message
* @param array $args Additional arguments ('file', 'line')
*/
static function warning($message, $args = array())
{
if (self::mode() >= self::WARNING) {
self::log_message(self::WARNING, $message, $args);
}
}
/**
* Logs error message
*
* @param string $message Log message
* @param array $args Additional arguments ('file', 'line')
*/
static function error($message, $args = array())
{
if (self::mode() >= self::ERROR) {
self::log_message(self::ERROR, $message, $args);
}
}
/**
* Message logger
*
* @param int $mode Message severity
* @param string $message Log message
* @param array $args Additional arguments ('file', 'line')
*/
private static function log_message($mode, $message, $args = array())
{
$conf = Conf::get_instance();
$logfile = $conf->get('kolab_wap', 'log_file');
// if log_file is configured all logs will go to it
// otherwise use separate file for info/debug and warning/error
if (!$logfile) {
switch ($mode) {
case self::TRACE:
case self::DEBUG:
case self::INFO:
$file = 'console';
break;
case self::WARNING:
case self::ERROR:
$file = 'errors';
break;
}
$logfile = dirname(__FILE__) . '/../logs/' . $file;
}
switch ($mode) {
case self::TRACE:
$prefix = 'TRACE';
break;
case self::DEBUG:
$prefix = 'DEBUG';
break;
case self::INFO:
$prefix = 'INFO';
break;
case self::WARNING:
$prefix = 'WARNING';
break;
case self::ERROR:
$prefix = 'ERROR';
break;
}
if (!is_string($message)) {
$message = var_export($message, true);
}
$date = date('d-M-Y H:i:s O');
$sess_id = session_id();
$logline = sprintf("[%s]%s: [%s] %s\n",
$date, $sess_id ? "($sess_id)" : '', $prefix, $message);
if (!empty($args)) {
if (is_array($args)) {
if (array_key_exists('file', $args)) {
$logline .= ' in ' . $args['file'];
unset($args['file']);
}
if (array_key_exists('line', $args)) {
$logline .= ' on line ' . intval($args['line']);
unset($args['line']);
}
}
if (!empty($args)) {
$logline .= var_export($args, TRUE);
}
}
if ($fp = @fopen($logfile, 'a')) {
fwrite($fp, $logline);
fflush($fp);
fclose($fp);
return;
}
if ($mode == self::ERROR) {
// send error to PHPs error handler if write to file didn't succeed
trigger_error($message, E_USER_ERROR);
}
}
/**
* Returns configured logging mode
*
* @return int Logging mode
*/
static function mode()
{
if (isset(self::$mode)) {
return self::$mode;
}
$conf = Conf::get_instance();
$mode = $conf->get('kolab_wap', 'debug_mode');
switch ($mode) {
case self::TRACE:
case 'trace':
case 'TRACE':
self::$mode = self::TRACE;
break;
case self::DEBUG:
case 'debug':
case 'DEBUG':
self::$mode = self::DEBUG;
break;
case self::INFO:
case 'info':
case 'INFO':
self::$mode = self::INFO;
break;
case self::WARNING:
case 'warning':
case 'WARNING':
self::$mode = self::WARNING;
break;
case self::ERROR:
default:
self::$mode = self::ERROR;
}
return self::$mode;
}
}

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Expires
Sun, Apr 5, 10:49 PM (2 w, 3 d ago)
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Storage Handle
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Log.php (6 KB)

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