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 'Swift/Encoder.php';
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/**
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 * Handles Base 64 Encoding in Swift Mailer.
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 * @package Swift
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 * @subpackage Encoder
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 * @author Chris Corbyn
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 */
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class Swift_Encoder_Base64Encoder implements Swift_Encoder
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{
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  /**
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   * Takes an unencoded string and produces a Base64 encoded string from it.
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   * Base64 encoded strings have a maximum line length of 76 characters.
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   * If the first line needs to be shorter, indicate the difference with
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   * $firstLineOffset.
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   * @param string $string to encode
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   * @param int $firstLineOffset
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   * @param int $maxLineLength, optional, 0 indicates the default of 76 bytes
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   * @return string
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   */
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  public function encodeString($string, $firstLineOffset = 0,
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    $maxLineLength = 0)
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  {
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    if (0 >= $maxLineLength || 76 < $maxLineLength)
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    {
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      $maxLineLength = 76;
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    }
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    $encodedString = base64_encode($string);
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    $firstLine = '';
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    if (0 != $firstLineOffset)
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    {
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      $firstLine = substr(
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        $encodedString, 0, $maxLineLength - $firstLineOffset
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        ) . "\r\n";
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      $encodedString = substr(
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        $encodedString, $maxLineLength - $firstLineOffset
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        );
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    }
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    return $firstLine . trim(chunk_split($encodedString, $maxLineLength, "\r\n"));
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  }
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  /**
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   * Does nothing.
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   */
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  public function charsetChanged($charset)
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  {
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  }
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}