interface/modules/zend_modules/library/Zend/Log/Processor/RequestId.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4 *
   5 * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6 * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
   7 * @license   http://framework.zend.com/license/new-bsd New BSD License
   8 */
   9
  10 namespace Zend\Log\Processor;
  11
  12 use Zend\Console\Console;
  13
  14 class RequestId implements ProcessorInterface
  15 {
  16     /**
  17      * Request identifier
  18      *
  19      * @var string
  20      */
  21     protected $identifier;
  22
  23     /**
  24      * Adds a identifier for the request to the log.
  25      *
  26      * This enables to filter the log for messages belonging to a specific request
  27      *
  28      * @param array $event event data
  29      * @return array event data
  30      */
  31     public function process(array $event)
  32     {
  33         if (!isset($event['extra'])) {
  34             $event['extra'] = array();
  35         }
  36
  37         $event['extra']['requestId'] = $this->getIdentifier();
  38         return $event;
  39     }
  40
  41     /**
  42      * Provide unique identifier for a request
  43      *
  44      * @return string
  45      */
  46     protected function getIdentifier()
  47     {
  48         if ($this->identifier) {
  49             return $this->identifier;
  50         }
  51
  52         $requestTime = (version_compare(PHP_VERSION, '5.4.0') >= 0)
  53                      ? $_SERVER['REQUEST_TIME_FLOAT']
  54                      : $_SERVER['REQUEST_TIME'];
  55
  56         if (Console::isConsole()) {
  57             $this->identifier = md5($requestTime);
  58             return $this->identifier;
  59         }
  60
  61         if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
  62             $this->identifier = md5($requestTime . $_SERVER['HTTP_X_FORWARDED_FOR']);
  63             return $this->identifier;
  64         }
  65
  66         $this->identifier = md5($requestTime . $_SERVER['REMOTE_ADDR']);
  67         return $this->identifier;
  68     }
  69 }