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<?php
/**
* $Header$
*
* @version $Revision: 313304 $
* @package Log
*/
/**
* The Log_firebug class is a concrete implementation of the Log::
* abstract class which writes message into Firebug console.
*
* http://www.getfirebug.com/
*
* @author Mika Tuupola <tuupola@appelsiini.net>
* @since Log 1.9.11
* @package Log
*
* @example firebug.php Using the firebug handler.
*/
class Log_firebug extends Log
{
/**
* Should the output be buffered or displayed immediately?
* @var string
* @access private
*/
var $_buffering = false;
/**
* String holding the buffered output.
* @var string
* @access private
*/
var $_buffer = array();
/**
* String containing the format of a log line.
* @var string
* @access private
*/
var $_lineFormat = '%2$s [%3$s] %4$s';
/**
* String containing the timestamp format. It will be passed directly to
* strftime(). Note that the timestamp string will generated using the
* current locale.
*
* Note! Default lineFormat of this driver does not display time.
*
* @var string
* @access private
*/
var $_timeFormat = '%b %d %H:%M:%S';
/**
* Mapping of log priorities to Firebug methods.
* @var array
* @access private
*/
var $_methods = array(
PEAR_LOG_EMERG => 'error',
PEAR_LOG_ALERT => 'error',
PEAR_LOG_CRIT => 'error',
PEAR_LOG_ERR => 'error',
PEAR_LOG_WARNING => 'warn',
PEAR_LOG_NOTICE => 'info',
PEAR_LOG_INFO => 'info',
PEAR_LOG_DEBUG => 'debug'
);
/**
* Constructs a new Log_firebug object.
*
* @param string $name Ignored.
* @param string $ident The identity string.
* @param array $conf The configuration array.
* @param int $level Log messages up to and including this level.
* @access public
*/
function Log_firebug($name = '', $ident = 'PHP', $conf = array(),
$level = PEAR_LOG_DEBUG)
{
$this->_id = md5(microtime());
$this->_ident = $ident;
$this->_mask = Log::UPTO($level);
if (isset($conf['buffering'])) {
$this->_buffering = $conf['buffering'];
}
if ($this->_buffering) {
register_shutdown_function(array(&$this, '_Log_firebug'));
}
if (!empty($conf['lineFormat'])) {
$this->_lineFormat = str_replace(array_keys($this->_formatMap),
array_values($this->_formatMap),
$conf['lineFormat']);
}
if (!empty($conf['timeFormat'])) {
$this->_timeFormat = $conf['timeFormat'];
}
}
/**
* Opens the firebug handler.
*
* @access public
*/
function open()
{
$this->_opened = true;
return true;
}
/**
* Destructor
*/
function _Log_firebug()
{
$this->close();
}
/**
* Closes the firebug handler.
*
* @access public
*/
function close()
{
$this->flush();
$this->_opened = false;
return true;
}
/**
* Flushes all pending ("buffered") data.
*
* @access public
*/
function flush() {
if (count($this->_buffer)) {
print '<script type="text/javascript">';
print "\nif ('console' in window) {\n";
foreach ($this->_buffer as $line) {
print " $line\n";
}
print "}\n";
print "</script>\n";
};
$this->_buffer = array();
}
/**
* Writes $message to Firebug console. 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 string $priority The priority of the message. Valid
* values are: PEAR_LOG_EMERG, PEAR_LOG_ALERT,
* PEAR_LOG_CRIT, PEAR_LOG_ERR, PEAR_LOG_WARNING,
* PEAR_LOG_NOTICE, PEAR_LOG_INFO, and PEAR_LOG_DEBUG.
* @return boolean True on success or false on failure.
* @access public
*/
function log($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;
}
/* Extract the string representation of the message. */
$message = $this->_extractMessage($message);
$method = $this->_methods[$priority];
/* normalize line breaks and escape quotes*/
$message = preg_replace("/\r?\n/", "\\n", addslashes($message));
/* Build the string containing the complete log line. */
$line = $this->_format($this->_lineFormat,
strftime($this->_timeFormat),
$priority,
$message);
if ($this->_buffering) {
$this->_buffer[] = sprintf('console.%s("%s");', $method, $line);
} else {
print '<script type="text/javascript">';
print "\nif ('console' in window) {\n";
/* Build and output the complete log line. */
printf(' console.%s("%s");', $method, $line);
print "\n}\n";
print "</script>\n";
}
/* Notify observers about this log message. */
$this->_announce(array('priority' => $priority, 'message' => $message));
return true;
}
}
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