Subversion-Projekte lars-tiefland.php_share

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Revision Autor Zeilennr. Zeile
1 lars 1 
<?php
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/*
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 * This file is part of SwiftMailer.
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 * (c) 2004-2009 Chris Corbyn
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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require_once dirname(__FILE__) . '/../HeaderEncoder.php';
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require_once dirname(__FILE__) . '/../../Encoder/QpEncoder.php';
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require_once dirname(__FILE__) . '/../../CharacterStream.php';
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/**
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 * Handles Quoted Printable (Q) Header Encoding in Swift Mailer.
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 * @package Swift
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 * @subpackage Mime
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 * @author Chris Corbyn
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 */
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class Swift_Mime_HeaderEncoder_QpHeaderEncoder extends Swift_Encoder_QpEncoder
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  implements Swift_Mime_HeaderEncoder
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{
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  private static $_headerSafeMap = array();
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  /**
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   * Creates a new QpHeaderEncoder for the given CharacterStream.
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   * @param Swift_CharacterStream $charStream to use for reading characters
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   */
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  public function __construct(Swift_CharacterStream $charStream)
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  {
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    parent::__construct($charStream);
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    if (empty(self::$_headerSafeMap))
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    {
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      foreach (array_merge(
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        range(0x61, 0x7A), range(0x41, 0x5A),
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        range(0x30, 0x39), array(0x20, 0x21, 0x2A, 0x2B, 0x2D, 0x2F)
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        ) as $byte)
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      {
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        self::$_headerSafeMap[$byte] = chr($byte);
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      }
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    }
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  }
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  /**
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   * Get the name of this encoding scheme.
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   * Returns the string 'Q'.
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   * @return string
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   */
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  public function getName()
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  {
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    return 'Q';
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  }
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  /**
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   * Takes an unencoded string and produces a Q encoded string from it.
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   * @param string $string to encode
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   * @param int $firstLineOffset, optional
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   * @param int $maxLineLength, optional, 0 indicates the default of 76 chars
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   * @return string
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   */
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  public function encodeString($string, $firstLineOffset = 0,
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    $maxLineLength = 0)
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  {
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    return str_replace(array(' ', '=20', "=\r\n"), array('_', '_', "\r\n"),
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      parent::encodeString($string, $firstLineOffset, $maxLineLength)
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      );
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  }
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  // -- Overridden points of extension
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  /**
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   * Encode the given byte array into a verbatim QP form.
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   * @param int[] $bytes
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   * @return string
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   * @access protected
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   */
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  protected function _encodeByteSequence(array $bytes, &$size)
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  {
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    $ret = '';
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    $size=0;
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    foreach ($bytes as $b)
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    {
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      if (isset(self::$_headerSafeMap[$b]))
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      {
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        $ret .= self::$_headerSafeMap[$b];
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        ++$size;
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      }
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      else
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      {
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        $ret .= self::$_qpMap[$b];
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        $size+=3;
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      }
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    }
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    return $ret;
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  }
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}