interface/modules/zend_modules/library/Zend/Mail/Header/MimeVersion.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\Mail\Header;
  11
  12 class MimeVersion implements HeaderInterface
  13 {
  14     /**
  15      * @var string Version string
  16      */
  17     protected $version = '1.0';
  18
  19     public static function fromString($headerLine)
  20     {
  21         list($name, $value) = GenericHeader::splitHeaderLine($headerLine);
  22
  23         // check to ensure proper header type for this factory
  24         if (strtolower($name) !== 'mime-version') {
  25             throw new Exception\InvalidArgumentException('Invalid header line for MIME-Version string');
  26         }
  27
  28         // Check for version, and set if found
  29         $header = new static();
  30         if (preg_match('/^(?P<version>\d+\.\d+)$/', $value, $matches)) {
  31             $header->setVersion($matches['version']);
  32         }
  33
  34         return $header;
  35     }
  36
  37     public function getFieldName()
  38     {
  39         return 'MIME-Version';
  40     }
  41
  42     public function getFieldValue($format = HeaderInterface::FORMAT_RAW)
  43     {
  44         return $this->version;
  45     }
  46
  47     public function setEncoding($encoding)
  48     {
  49         // This header must be always in US-ASCII
  50         return $this;
  51     }
  52
  53     public function getEncoding()
  54     {
  55         return 'ASCII';
  56     }
  57
  58     public function toString()
  59     {
  60         return 'MIME-Version: ' . $this->getFieldValue();
  61     }
  62
  63     /**
  64      * Set the version string used in this header
  65      *
  66      * @param  string $version
  67      * @return MimeVersion
  68      */
  69     public function setVersion($version)
  70     {
  71         $this->version = $version;
  72         return $this;
  73     }
  74
  75     /**
  76      * Retrieve the version string for this header
  77      *
  78      * @return string
  79      */
  80     public function getVersion()
  81     {
  82         return $this->version;
  83     }
  84 }