Viewing file: syslog.php (7.18 KB) -rw-rw-rw- Select action/file-type: (+) | (+) | (+) | Code (+) | Session (+) | (+) | SDB (+) | (+) | (+) | (+) | (+) | (+) |
<?php /** * $Header$ * $Horde: horde/lib/Log/syslog.php,v 1.6 2000/06/28 21:36:13 jon Exp $ * * @version $Revision: 308379 $ * @package Log */
/** * The Log_syslog class is a concrete implementation of the Log:: * abstract class which sends messages to syslog on UNIX-like machines * (PHP emulates this with the Event Log on Windows machines). * * @author Chuck Hagenbuch <chuck@horde.org> * @author Jon Parise <jon@php.net> * @since Horde 1.3 * @since Log 1.0 * @package Log * * @example syslog.php Using the syslog handler. */ class Log_syslog extends Log { /** * Integer holding the log facility to use. * @var integer * @access private */ var $_name = LOG_SYSLOG;
/** * Should we inherit the current syslog connection for this process, or * should we call openlog() to start a new syslog connection? * @var boolean * @access private */ var $_inherit = false;
/** * Should we re-open the syslog connection for each log event? * @var boolean * @access private */ var $_reopen = false;
/** * Maximum message length that will be sent to syslog(). If the handler * receives a message longer than this length limit, it will be split into * multiple syslog() calls. * @var integer * @access private */ var $_maxLength = 500;
/** * String containing the format of a message. * @var string * @access private */ var $_lineFormat = '%4$s';
/** * String containing the timestamp format. It will be passed directly to * strftime(). Note that the timestamp string will generated using the * current locale. * @var string * @access private */ var $_timeFormat = '%b %d %H:%M:%S';
/** * Constructs a new syslog object. * * @param string $name The syslog facility. * @param string $ident The identity string. * @param array $conf The configuration array. * @param int $level Log messages up to and including this level. * @access public */ function Log_syslog($name, $ident = '', $conf = array(), $level = PEAR_LOG_DEBUG) { /* Ensure we have a valid integer value for $name. */ if (empty($name) || !is_int($name)) { $name = LOG_SYSLOG; }
if (isset($conf['inherit'])) { $this->_inherit = $conf['inherit']; $this->_opened = $this->_inherit; } if (isset($conf['reopen'])) { $this->_reopen = $conf['reopen']; } if (isset($conf['maxLength'])) { $this->_maxLength = $conf['maxLength']; } if (!empty($conf['lineFormat'])) { $this->_lineFormat = str_replace(array_keys($this->_formatMap), array_values($this->_formatMap), $conf['lineFormat']); } if (!empty($conf['timeFormat'])) { $this->_timeFormat = $conf['timeFormat']; }
$this->_id = md5(microtime()); $this->_name = $name; $this->_ident = $ident; $this->_mask = Log::UPTO($level); }
/** * Opens a connection to the system logger, if it has not already * been opened. This is implicitly called by log(), if necessary. * @access public */ function open() { if (!$this->_opened || $this->_reopen) { $this->_opened = openlog($this->_ident, LOG_PID, $this->_name); }
return $this->_opened; }
/** * Closes the connection to the system logger, if it is open. * @access public */ function close() { if ($this->_opened && !$this->_inherit) { closelog(); $this->_opened = false; }
return true; }
/** * Sends $message to the currently open syslog connection. Calls * open() if necessary. Also passes the message along to any Log_observer * instances that are observing this Log. * * @param mixed $message String or object containing the message to log. * @param int $priority (optional) The priority of the message. Valid * values are: PEAR_LOG_EMERG, PEAR_LOG_ALERT, * PEAR_LOG_CRIT, PEAR_LOG_ERR, PEAR_LOG_WARNING, * PEAR_LOG_NOTICE, PEAR_LOG_INFO, and PEAR_LOG_DEBUG. * @return boolean True on success or false on failure. * @access public */ function log($message, $priority = null) { /* If a priority hasn't been specified, use the default value. */ if ($priority === null) { $priority = $this->_priority; }
/* Abort early if the priority is above the maximum logging level. */ if (!$this->_isMasked($priority)) { return false; }
/* If we need to (re)open the connection and open() fails, abort. */ if ((!$this->_opened || $this->_reopen) && !$this->open()) { return false; }
/* Extract the string representation of the message. */ $message = $this->_extractMessage($message);
/* Build a syslog priority value based on our current configuration. */ $priority = $this->_toSyslog($priority); if ($this->_inherit) { $priority |= $this->_name; }
/* Apply the configured line format to the message string. */ $message = $this->_format($this->_lineFormat, strftime($this->_timeFormat), $priority, $message);
/* Split the string into parts based on our maximum length setting. */ $parts = str_split($message, $this->_maxLength); if ($parts === false) { return false; }
foreach ($parts as $part) { if (!syslog($priority, $part)) { return false; } }
$this->_announce(array('priority' => $priority, 'message' => $message));
return true; }
/** * Converts a PEAR_LOG_* constant into a syslog LOG_* constant. * * This function exists because, under Windows, not all of the LOG_* * constants have unique values. Instead, the PEAR_LOG_* were introduced * for global use, with the conversion to the LOG_* constants kept local to * to the syslog driver. * * @param int $priority PEAR_LOG_* value to convert to LOG_* value. * * @return The LOG_* representation of $priority. * * @access private */ function _toSyslog($priority) { static $priorities = array( PEAR_LOG_EMERG => LOG_EMERG, PEAR_LOG_ALERT => LOG_ALERT, PEAR_LOG_CRIT => LOG_CRIT, PEAR_LOG_ERR => LOG_ERR, PEAR_LOG_WARNING => LOG_WARNING, PEAR_LOG_NOTICE => LOG_NOTICE, PEAR_LOG_INFO => LOG_INFO, PEAR_LOG_DEBUG => LOG_DEBUG );
/* If we're passed an unknown priority, default to LOG_INFO. */ if (!is_int($priority) || !in_array($priority, $priorities)) { return LOG_INFO; }
return $priorities[$priority]; }
}
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