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Diffstat (limited to 'inc/Log/daemon.php')
| -rwxr-xr-x | inc/Log/daemon.php | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/inc/Log/daemon.php b/inc/Log/daemon.php new file mode 100755 index 00000000000..739270c9a32 --- /dev/null +++ b/inc/Log/daemon.php @@ -0,0 +1,229 @@ +<?php +// $Id: daemon.php,v 1.1 2004/12/21 06:55:38 jon Exp $ + +/** + * The Log_daemon class is a concrete implementation of the Log:: + * abstract class which sends messages to syslog daemon on UNIX-like machines. + * This class uses the syslog protocol: http://www.ietf.org/rfc/rfc3164.txt + * + * @author Bart van der Schans <schans@dds.nl> + * @version $Revision: 1.1 $ + * @package Log + */ +class Log_daemon extends Log { + + /** + * Integer holding the log facility to use. + * @var string + */ + var $_name = LOG_DAEMON; + + /** + * Var holding the resource pointer to the socket + * @var resource + */ + var $_socket; + + /** + * The ip address or servername + * @see http://www.php.net/manual/en/transports.php + * @var string + */ + var $_ip = '127.0.0.1'; + + /** + * Protocol to use (tcp, udp, etc.) + * @see http://www.php.net/manual/en/transports.php + * @var string + */ + var $_proto = 'udp'; + + /** + * Port to connect to + * @var int + */ + var $_port = 514; + + /** + * Maximum message length in bytes + * @var int + */ + var $_maxsize = 4096; + + /** + * Socket timeout in seconds + * @var int + */ + var $_timeout = 1; + + + /** + * 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 $maxLevel Maximum level at which to log. + * @access public + */ + function Log_daemon($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; + } + + $this->_id = md5(microtime()); + $this->_name = $name; + $this->_ident = $ident; + $this->_mask = Log::UPTO($level); + + if (isset($conf['ip'])) { + $this->_ip = $conf['ip']; + } + if (isset($conf['proto'])) { + $this->_proto = $conf['proto']; + } + if (isset($conf['port'])) { + $this->_port = $conf['port']; + } + if (isset($conf['maxsize'])) { + $this->_maxsize = $conf['maxsize']; + } + if (isset($conf['timeout'])) { + $this->_timeout = $conf['timeout']; + } + $this->_proto = $this->_proto . '://'; + + register_shutdown_function(array(&$this, '_Log_daemon')); + } + + /** + * Destructor. + * + * @access private + */ + function _Log_daemon() + { + $this->close(); + } + + /** + * Opens a connection to the system logger, if it has not already + * been opened. This is implicitly called by log(), if necessary. + * @access public + */ + function open() + { + if (!$this->_opened) { + $this->_opened = (bool)($this->_socket = @fsockopen( + $this->_proto . $this->_ip, + $this->_port, + $errno, + $errstr, + $this->_timeout)); + } + return $this->_opened; + } + + /** + * Closes the connection to the system logger, if it is open. + * @access public + */ + function close() + { + if ($this->_opened) { + $this->_opened = false; + return fclose($this->_socket); + } + 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 string $message The textual message to be logged. + * @param int $priority (optional) The priority of the message. Valid + * values are: LOG_EMERG, LOG_ALERT, LOG_CRIT, + * LOG_ERR, LOG_WARNING, LOG_NOTICE, LOG_INFO, + * and LOG_DEBUG. The default is LOG_INFO. + * @access public + */ + function log($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($priority)) { + return false; + } + + /* If the connection isn't open and can't be opened, return failure. */ + if (!$this->_opened && !$this->open()) { + return false; + } + + /* Extract the string representation of the message. */ + $message = $this->_extractMessage($message); + + /* Set the facility level. */ + $facility_level = intval($this->_name) + + intval($this->_toSyslog($priority)); + + /* Prepend ident info. */ + if (!empty($this->_ident)) { + $message = $this->_ident . ' ' . $message; + } + + /* Check for message length. */ + if (strlen($message) > $this->_maxsize) { + $message = substr($message, 0, ($this->_maxsize) - 10) . ' [...]'; + } + + /* Write to socket. */ + fwrite($this->_socket, '<' . $facility_level . '>' . $message . "\n"); + + $this->_announce(array('priority' => $priority, 'message' => $message)); + } + + /** + * 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]; + } +} |