110 lines
2.9 KiB
PHP
110 lines
2.9 KiB
PHP
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<?php
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/*
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The Quoted Printable header encoder in Swift Mailer.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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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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}
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