interface/modules/zend_modules/library/Zend/Http/Header/UserAgent.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\Http\Header;
  11
  12 /**
  13  * @throws Exception\InvalidArgumentException
  14  * @see http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.43
  15  */
  16 class UserAgent implements HeaderInterface
  17 {
  18
  19     public static function fromString($headerLine)
  20     {
  21         $header = new static();
  22
  23         list($name, $value) = GenericHeader::splitHeaderLine($headerLine);
  24
  25         // check to ensure proper header type for this factory
  26         if (str_replace(array('_', ' ', '.'), '-', strtolower($name)) !== 'user-agent') {
  27             throw new Exception\InvalidArgumentException('Invalid header line for User-Agent string: "' . $name . '"');
  28         }
  29
  30         // @todo implementation details
  31         $header->value = $value;
  32
  33         return $header;
  34     }
  35
  36     public function getFieldName()
  37     {
  38         return 'User-Agent';
  39     }
  40
  41     public function getFieldValue()
  42     {
  43         return $this->value;
  44     }
  45
  46     public function toString()
  47     {
  48         return 'User-Agent: ' . $this->getFieldValue();
  49     }
  50 }