161 lines
4.8 KiB
PHP
161 lines
4.8 KiB
PHP
<?php
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/**
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* $Header$
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*
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* @version $Revision: 255603 $
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* @package Log
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*/
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/**
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* The Log_display class is a concrete implementation of the Log::
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* abstract class which writes message into browser in usual PHP maner.
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* This may be useful because when you use PEAR::setErrorHandling in
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* PEAR_ERROR_CALLBACK mode error messages are not displayed by
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* PHP error handler.
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*
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* @author Paul Yanchenko <pusher@inaco.ru>
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* @since Log 1.8.0
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* @package Log
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*
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* @example display.php Using the display handler.
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*/
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class Log_display extends Log
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{
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/**
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* String containing the format of a log line.
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* @var string
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* @access private
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*/
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var $_lineFormat = '<b>%3$s</b>: %4$s';
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/**
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* String containing the timestamp format. It will be passed directly to
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* strftime(). Note that the timestamp string will generated using the
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* current locale.
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* @var string
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* @access private
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*/
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var $_timeFormat = '%b %d %H:%M:%S';
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/**
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* Constructs a new Log_display object.
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*
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* @param string $name Ignored.
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* @param string $ident The identity string.
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* @param array $conf The configuration array.
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* @param int $level Log messages up to and including this level.
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* @access public
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*/
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function __construct($name = '', $ident = '', $conf = array(),
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$level = PEAR_LOG_DEBUG)
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{
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$this->_id = md5(microtime());
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$this->_ident = $ident;
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$this->_mask = Log::UPTO($level);
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/* Start by configuring the line format. */
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if (!empty($conf['lineFormat'])) {
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$this->_lineFormat = str_replace(array_keys($this->_formatMap),
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array_values($this->_formatMap),
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$conf['lineFormat']);
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}
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/* We may need to prepend a string to our line format. */
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$prepend = null;
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if (isset($conf['error_prepend'])) {
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$prepend = $conf['error_prepend'];
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} else {
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$prepend = ini_get('error_prepend_string');
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}
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if (!empty($prepend)) {
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$this->_lineFormat = $prepend . $this->_lineFormat;
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}
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/* We may also need to append a string to our line format. */
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$append = null;
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if (isset($conf['error_append'])) {
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$append = $conf['error_append'];
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} else {
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$append = ini_get('error_append_string');
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}
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if (!empty($append)) {
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$this->_lineFormat .= $append;
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}
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/* Lastly, the line ending sequence is also configurable. */
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if (isset($conf['linebreak'])) {
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$this->_lineFormat .= $conf['linebreak'];
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} else {
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$this->_lineFormat .= "<br />\n";
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}
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/* The user can also change the time format. */
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if (!empty($conf['timeFormat'])) {
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$this->_timeFormat = $conf['timeFormat'];
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}
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}
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/**
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* Opens the display handler.
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*
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* @access public
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* @since Log 1.9.6
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*/
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function open()
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{
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$this->_opened = true;
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return true;
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}
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/**
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* Closes the display handler.
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*
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* @access public
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* @since Log 1.9.6
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*/
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function close()
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{
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$this->_opened = false;
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return true;
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}
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/**
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* Writes $message to the text browser. Also, passes the message
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* along to any Log_observer instances that are observing this Log.
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*
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* @param mixed $message String or object containing the message to log.
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* @param string $priority The priority of the message. Valid
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* values are: PEAR_LOG_EMERG, PEAR_LOG_ALERT,
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* PEAR_LOG_CRIT, PEAR_LOG_ERR, PEAR_LOG_WARNING,
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* PEAR_LOG_NOTICE, PEAR_LOG_INFO, and PEAR_LOG_DEBUG.
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* @return boolean True on success or false on failure.
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* @access public
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*/
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function log($message, $priority = null)
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{
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/* If a priority hasn't been specified, use the default value. */
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if ($priority === null) {
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$priority = $this->_priority;
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}
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/* Abort early if the priority is above the maximum logging level. */
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if (!$this->_isMasked($priority)) {
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return false;
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}
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/* Extract the string representation of the message. */
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$message = $this->_extractMessage($message);
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/* Build and output the complete log line. */
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echo $this->_format($this->_lineFormat,
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strftime($this->_timeFormat),
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$priority,
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nl2br(htmlspecialchars($message)));
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/* Notify observers about this log message. */
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$this->_announce(array('priority' => $priority, 'message' => $message));
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return true;
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}
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}
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