vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/ContentEncoder/QpContentEncoderProxy.php

   1 <?php
   2
   3 /*
   4  * This file is part of SwiftMailer.
   5  * (c) 2004-2009 Chris Corbyn
   6  *
   7  * For the full copyright and license information, please view the LICENSE
   8  * file that was distributed with this source code.
   9  */
  10
  11 /**
  12  * Proxy for quoted-printable content encoders.
  13  *
  14  * Switches on the best QP encoder implementation for current charset.
  15  *
  16  * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
  17  */
  18 class Swift_Mime_ContentEncoder_QpContentEncoderProxy implements Swift_Mime_ContentEncoder
  19 {
  20     /**
  21      * @var Swift_Mime_ContentEncoder_QpContentEncoder
  22      */
  23     private $safeEncoder;
  24
  25     /**
  26      * @var Swift_Mime_ContentEncoder_NativeQpContentEncoder
  27      */
  28     private $nativeEncoder;
  29
  30     /**
  31      * @var string|null
  32      */
  33     private $charset;
  34
  35     /**
  36      * Constructor.
  37      *
  38      * @param string|null $charset
  39      */
  40     public function __construct(Swift_Mime_ContentEncoder_QpContentEncoder $safeEncoder, Swift_Mime_ContentEncoder_NativeQpContentEncoder $nativeEncoder, $charset)
  41     {
  42         $this->safeEncoder = $safeEncoder;
  43         $this->nativeEncoder = $nativeEncoder;
  44         $this->charset = $charset;
  45     }
  46
  47     /**
  48      * Make a deep copy of object.
  49      */
  50     public function __clone()
  51     {
  52         $this->safeEncoder = clone $this->safeEncoder;
  53         $this->nativeEncoder = clone $this->nativeEncoder;
  54     }
  55
  56     /**
  57      * {@inheritdoc}
  58      */
  59     public function charsetChanged($charset)
  60     {
  61         $this->charset = $charset;
  62         $this->safeEncoder->charsetChanged($charset);
  63     }
  64
  65     /**
  66      * {@inheritdoc}
  67      */
  68     public function encodeByteStream(Swift_OutputByteStream $os, Swift_InputByteStream $is, $firstLineOffset = 0, $maxLineLength = 0)
  69     {
  70         $this->getEncoder()->encodeByteStream($os, $is, $firstLineOffset, $maxLineLength);
  71     }
  72
  73     /**
  74      * {@inheritdoc}
  75      */
  76     public function getName()
  77     {
  78         return 'quoted-printable';
  79     }
  80
  81     /**
  82      * {@inheritdoc}
  83      */
  84     public function encodeString($string, $firstLineOffset = 0, $maxLineLength = 0)
  85     {
  86         return $this->getEncoder()->encodeString($string, $firstLineOffset, $maxLineLength);
  87     }
  88
  89     /**
  90      * @return Swift_Mime_ContentEncoder
  91      */
  92     private function getEncoder()
  93     {
  94         return 'utf-8' === $this->charset ? $this->nativeEncoder : $this->safeEncoder;
  95     }
  96 }