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<?php
/**
* Copyright 2012-2017 Horde LLC (http://www.horde.org/)
*
* See the enclosed file LICENSE for license information (LGPL). If you
* did not receive this file, see http://www.horde.org/licenses/lgpl21.
*
* @category Horde
* @copyright 2012-2017 Horde LLC
* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
* @package Imap_Client
*/
/**
* An object allowing management of debugging output within a
* Horde_Imap_Client_Base object.
*
* NOTE: This class is NOT intended to be accessed outside of a Base object.
* There is NO guarantees that the API of this class will not change across
* versions.
*
* @author Michael Slusarz <slusarz@horde.org>
* @category Horde
* @copyright 2012-2017 Horde LLC
* @internal
* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
* @package Imap_Client
*/
class Horde_Imap_Client_Base_Debug
{
/** Time, in seconds, to be labeled a slow command. */
const SLOW_CMD = 5;
/**
* Is debugging active?
*
* @var boolean
*/
public $debug = true;
/**
* The debug stream.
*
* @var resource
*/
protected $_stream;
/**
* Timestamp of last command.
*
* @var integer
*/
protected $_time = null;
/**
* Constructor.
*
* @param mixed $debug The debug target.
*/
public function __construct($debug)
{
$this->_stream = is_resource($debug)
? $debug
: @fopen($debug, 'a');
register_shutdown_function(array($this, 'shutdown'));
}
/**
* Shutdown function.
*/
public function shutdown()
{
if (is_resource($this->_stream)) {
fflush($this->_stream);
fclose($this->_stream);
$this->_stream = null;
}
}
/**
* Write client output to debug log.
*
* @param string $msg Debug message.
*/
public function client($msg)
{
$this->_write($msg . "\n", 'C: ');
}
/**
* Write informational message to debug log.
*
* @param string $msg Debug message.
*/
public function info($msg)
{
$this->_write($msg . "\n", '>> ');
}
/**
* Write server output to debug log.
*
* @param string $msg Debug message.
*/
public function raw($msg)
{
$this->_write($msg);
}
/**
* Write server output to debug log.
*
* @param string $msg Debug message.
*/
public function server($msg)
{
$this->_write($msg . "\n", 'S: ');
}
/**
* Write debug information to the output stream.
*
* @param string $msg Debug data.
*/
protected function _write($msg, $pre = null)
{
if (!$this->debug || !$this->_stream) {
return;
}
if (!is_null($pre)) {
$new_time = microtime(true);
if (is_null($this->_time)) {
fwrite(
$this->_stream,
str_repeat('-', 30) . "\n" . '>> ' . date('r') . "\n"
);
} elseif (($diff = ($new_time - $this->_time)) > self::SLOW_CMD) {
fwrite(
$this->_stream,
'>> Slow Command: ' . round($diff, 3) . " seconds\n"
);
}
$this->_time = $new_time;
}
fwrite($this->_stream, $pre . $msg);
}
}