net.php.pear/Log/syslog.php

<?php
// $Id: syslog.php,v 1.10 2002/12/02 05:23:00 jon Exp $
// $Horde: horde/lib/Log/syslog.php,v 1.6 2000/06/28 21:36:13 jon Exp $

/**
 * 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>
 * @version $Revision: 1.10 $
 * @since   Horde 1.3
 * @package Log 
 */
class Log_syslog extends Log {

    /** 
    * Integer holding the log facility to use. 
    * @var string
    */
    var $_name = LOG_SYSLOG;

    
    /**
     * 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    $maxLevel Maximum level at which to log.
     * @access public
     */
    function Log_syslog($name, $ident = '', $conf = array(),
                        $maxLevel = PEAR_LOG_DEBUG)
    {    
        /* Ensure we have a valid integer value for $name. */
        if (empty($name) || !is_int($name)) {
            $name = LOG_SYSLOG;
        }

        $this->_name = $name;
        $this->_ident = $ident;
        $this->_maxLevel = $maxLevel;
    }

    /**
     * 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 (!$this->_opened) {
            openlog($this->_ident, LOG_PID, $this->_name);
            $this->_opened = true;
        }
    }

    /**
     * Closes the connection to the system logger, if it is open.
     * @access public     
     */
    function close()
    {
        if ($this->_opened) {
            closelog();
            $this->_opened = false;
        }
    }

    /**
     * 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 $priority (optional) The priority of the message.  Valid
     *                  values are: PEAR_LOG_EMERG, PEAR_LOG_ALERT,
     *                  PEAR_LOG_CRIT, PEAR_LOG_ERR, PEAR_LOG_WARNING,
     *                  PEAR_LOG_NOTICE, PEAR_LOG_INFO, and PEAR_LOG_DEBUG.
     *                  The default is PEAR_LOG_INFO.
     * @return boolean  True on success or false on failure.
     * @access public     
     */
    function log($message, $priority = PEAR_LOG_INFO)
    {
        /* Abort early if the priority is above the maximum logging level. */
        if ($priority > $this->_maxLevel) {
            return false;
        }

        if (!$this->_opened) {
            $this->open();
        }

        if (!syslog($this->_toSyslog($priority), $message)) {
            return false;
        }

        $this->notifyAll(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
        );

        return $priorities[$priority];
    }

}
?>
1	joko	1.2	<?php
2			// $Id: syslog.php,v 1.10 2002/12/02 05:23:00 jon Exp $
3			// $Horde: horde/lib/Log/syslog.php,v 1.6 2000/06/28 21:36:13 jon Exp $
4
5			/**
6			* The Log_syslog class is a concrete implementation of the Log::
7			* abstract class which sends messages to syslog on UNIX-like machines
8			* (PHP emulates this with the Event Log on Windows machines).
9			*
10			* @author Chuck Hagenbuch <chuck@horde.org>
11			* @version $Revision: 1.10 $
12			* @since Horde 1.3
13			* @package Log
14			*/
15			class Log_syslog extends Log {
16
17			/**
18			* Integer holding the log facility to use.
19			* @var string
20			*/
21			var $_name = LOG_SYSLOG;
22
23
24			/**
25			* Constructs a new syslog object.
26			*
27			* @param string $name The syslog facility.
28			* @param string $ident The identity string.
29			* @param array $conf The configuration array.
30			* @param int $maxLevel Maximum level at which to log.
31			* @access public
32			*/
33			function Log_syslog($name, $ident = '', $conf = array(),
34			$maxLevel = PEAR_LOG_DEBUG)
35			{
36			/* Ensure we have a valid integer value for $name. */
37			if (empty($name) \|\| !is_int($name)) {
38			$name = LOG_SYSLOG;
39			}
40
41			$this->_name = $name;
42			$this->_ident = $ident;
43			$this->_maxLevel = $maxLevel;
44			}
45
46			/**
47			* Opens a connection to the system logger, if it has not already
48			* been opened. This is implicitly called by log(), if necessary.
49			* @access public
50			*/
51			function open()
52			{
53			if (!$this->_opened) {
54			openlog($this->_ident, LOG_PID, $this->_name);
55			$this->_opened = true;
56			}
57			}
58
59			/**
60			* Closes the connection to the system logger, if it is open.
61			* @access public
62			*/
63			function close()
64			{
65			if ($this->_opened) {
66			closelog();
67			$this->_opened = false;
68			}
69			}
70
71			/**
72			* Sends $message to the currently open syslog connection. Calls
73			* open() if necessary. Also passes the message along to any Log_observer
74			* instances that are observing this Log.
75			*
76			* @param string $message The textual message to be logged.
77			* @param int $priority (optional) The priority of the message. Valid
78			* values are: PEAR_LOG_EMERG, PEAR_LOG_ALERT,
79			* PEAR_LOG_CRIT, PEAR_LOG_ERR, PEAR_LOG_WARNING,
80			* PEAR_LOG_NOTICE, PEAR_LOG_INFO, and PEAR_LOG_DEBUG.
81			* The default is PEAR_LOG_INFO.
82			* @return boolean True on success or false on failure.
83			* @access public
84			*/
85			function log($message, $priority = PEAR_LOG_INFO)
86			{
87			/* Abort early if the priority is above the maximum logging level. */
88			if ($priority > $this->_maxLevel) {
89			return false;
90			}
91
92			if (!$this->_opened) {
93			$this->open();
94			}
95
96			if (!syslog($this->_toSyslog($priority), $message)) {
97			return false;
98			}
99
100			$this->notifyAll(array('priority' => $priority, 'message' => $message));
101
102			return true;
103			}
104
105			/**
106			* Converts a PEAR_LOG_* constant into a syslog LOG_* constant.
107			*
108			* This function exists because, under Windows, not all of the LOG_*
109			* constants have unique values. Instead, the PEAR_LOG_* were introduced
110			* for global use, with the conversion to the LOG_* constants kept local to
111			* to the syslog driver.
112			*
113			* @param int $priority PEAR_LOG_* value to convert to LOG_* value.
114			*
115			* @return The LOG_* representation of $priority.
116			*
117			* @access private
118			*/
119			function _toSyslog($priority)
120			{
121			static $priorities = array(
122			PEAR_LOG_EMERG => LOG_EMERG,
123			PEAR_LOG_ALERT => LOG_ALERT,
124			PEAR_LOG_CRIT => LOG_CRIT,
125			PEAR_LOG_ERR => LOG_ERR,
126			PEAR_LOG_WARNING => LOG_WARNING,
127			PEAR_LOG_NOTICE => LOG_NOTICE,
128			PEAR_LOG_INFO => LOG_INFO,
129			PEAR_LOG_DEBUG => LOG_DEBUG
130			);
131
132			return $priorities[$priority];
133			}
134
135			}
136			?>
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