/libs/Nette/Diagnostics/FireLogger.php

<?php



/**

 * This file is part of the Nette Framework (http://nette.org)

 *

 * Copyright (c) 2004 David Grudl (http://davidgrudl.com)

 *

 * For the full copyright and license information, please view

 * the file license.txt that was distributed with this source code.

 */



namespace Nette\Diagnostics;



use Nette;







/**

 * FireLogger console logger.

 *

 * @see http://firelogger.binaryage.com

 * @author     David Grudl

 */

class FireLogger extends Nette\Object

{

	const DEBUG = 'debug',

		INFO = 'info',

		WARNING = 'warning',

		ERROR = 'error',

		CRITICAL = 'critical';



	private static $payload = array('logs' => array());







	/**

	 * Sends message to FireLogger console.

	 * @param  mixed

	 * @return bool    was successful?

	 */

	public static function log($message, $priority = self::DEBUG)

	{

		if (!isset($_SERVER['HTTP_X_FIRELOGGER']) || headers_sent()) {

			return FALSE;

		}



		$item = array(

			'name' => 'PHP',

			'level' => $priority,

			'order' => count(self::$payload['logs']),

			'time' => str_pad(number_format((microtime(TRUE) - Debugger::$time) * 1000, 1, '.', ' '), 8, '0', STR_PAD_LEFT) . ' ms',

			'template' => '',

			'message' => '',

			'style' => 'background:#767ab6',

		);



		$args = func_get_args();

		if (isset($args[0]) && is_string($args[0])) {

			$item['template'] = array_shift($args);

		}



		if (isset($args[0]) && $args[0] instanceof \Exception) {

			$e = array_shift($args);

			$trace = $e->getTrace();

			if (isset($trace[0]['class']) && $trace[0]['class'] === 'Nette\Diagnostics\Debugger'

				&& ($trace[0]['function'] === '_shutdownHandler' || $trace[0]['function'] === '_errorHandler')

			) {

				unset($trace[0]);

			}



			$file = str_replace(dirname(dirname(dirname($e->getFile()))), "\xE2\x80\xA6", $e->getFile());

			$item['template'] = ($e instanceof \ErrorException ? '' : get_class($e) . ': ')

				. $e->getMessage() . ($e->getCode() ? ' #' . $e->getCode() : '') . ' in ' . $file . ':' . $e->getLine();

			$item['pathname'] = $e->getFile();

			$item['lineno'] = $e->getLine();



		} else {

			$trace = debug_backtrace();

			if (isset($trace[1]['class']) && $trace[1]['class'] === 'Nette\Diagnostics\Debugger'

				&& ($trace[1]['function'] === 'fireLog')

			) {

				unset($trace[0]);

			}



			foreach ($trace as $frame) {

				if (isset($frame['file']) && is_file($frame['file'])) {

					$item['pathname'] = $frame['file'];

					$item['lineno'] = $frame['line'];

					break;

				}

			}

		}



		$item['exc_info'] = array('', '', array());

		$item['exc_frames'] = array();



		foreach ($trace as $frame) {

			$frame += array('file' => NULL, 'line' => NULL, 'class' => NULL, 'type' => NULL, 'function' => NULL, 'object' => NULL, 'args' => NULL);

			$item['exc_info'][2][] = array($frame['file'], $frame['line'], "$frame[class]$frame[type]$frame[function]", $frame['object']);

			$item['exc_frames'][] = $frame['args'];

		}



		if (isset($args[0]) && in_array($args[0], array(self::DEBUG, self::INFO, self::WARNING, self::ERROR, self::CRITICAL), TRUE)) {

			$item['level'] = array_shift($args);

		}



		$item['args'] = $args;



		self::$payload['logs'][] = self::jsonDump($item, -1);

		foreach (str_split(base64_encode(@json_encode(self::$payload)), 4990) as $k => $v) { // intentionally @

			header("FireLogger-de11e-$k:$v");

		}

		return TRUE;

	}







	/**

	 * Dump implementation for JSON.

	 * @param  mixed  variable to dump

	 * @param  int    current recursion level

	 * @return string

	 */

	private static function jsonDump(&$var, $level = 0)

	{

		if (is_bool($var) || is_null($var) || is_int($var) || is_float($var)) {

			return $var;



		} elseif (is_string($var)) {

			if (Debugger::$maxLen && strlen($var) > Debugger::$maxLen) {

				$var = substr($var, 0, Debugger::$maxLen) . " \xE2\x80\xA6 ";

			}

			return Nette\Utils\Strings::fixEncoding($var);



		} elseif (is_array($var)) {

			static $marker;

			if ($marker === NULL) {

				$marker = uniqid("\x00", TRUE);

			}

			if (isset($var[$marker])) {

				return "\xE2\x80\xA6RECURSION\xE2\x80\xA6";



			} elseif ($level < Debugger::$maxDepth || !Debugger::$maxDepth) {

				$var[$marker] = TRUE;

				$res = array();

				foreach ($var as $k => &$v) {

					if ($k !== $marker) {

						$res[self::jsonDump($k)] = self::jsonDump($v, $level + 1);

					}

				}

				unset($var[$marker]);

				return $res;



			} else {

				return " \xE2\x80\xA6 ";

			}



		} elseif (is_object($var)) {

			$arr = (array) $var;

			static $list = array();

			if (in_array($var, $list, TRUE)) {

				return "\xE2\x80\xA6RECURSION\xE2\x80\xA6";



			} elseif ($level < Debugger::$maxDepth || !Debugger::$maxDepth) {

				$list[] = $var;

				$res = array("\x00" => '(object) ' . get_class($var));

				foreach ($arr as $k => &$v) {

					if ($k[0] === "\x00") {

						$k = substr($k, strrpos($k, "\x00") + 1);

					}

					$res[self::jsonDump($k)] = self::jsonDump($v, $level + 1);

				}

				array_pop($list);

				return $res;



			} else {

				return " \xE2\x80\xA6 ";

			}



		} elseif (is_resource($var)) {

			return "resource " . get_resource_type($var);



		} else {

			return "unknown type";

		}

	}



}