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671 lines
16 KiB
PHP
671 lines
16 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Mime
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* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id$
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*/
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/**
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* Support class for MultiPart Mime Messages
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*
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* @category Zend
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* @package Zend_Mime
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* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Mime
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{
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const TYPE_OCTETSTREAM = 'application/octet-stream';
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const TYPE_TEXT = 'text/plain';
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const TYPE_HTML = 'text/html';
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const ENCODING_7BIT = '7bit';
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const ENCODING_8BIT = '8bit';
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const ENCODING_QUOTEDPRINTABLE = 'quoted-printable';
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const ENCODING_BASE64 = 'base64';
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const DISPOSITION_ATTACHMENT = 'attachment';
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const DISPOSITION_INLINE = 'inline';
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const LINELENGTH = 72;
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const LINEEND = "\n";
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const MULTIPART_ALTERNATIVE = 'multipart/alternative';
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const MULTIPART_MIXED = 'multipart/mixed';
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const MULTIPART_RELATED = 'multipart/related';
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/**
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* Boundary
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*
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* @var null|string
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*/
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protected $_boundary;
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/**
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* @var int
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*/
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protected static $makeUnique = 0;
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/**
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* Lookup-Tables for QuotedPrintable
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*
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* @var array
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*/
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public static $qpKeys = array(
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"\x00",
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"\x01",
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"\x02",
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"\x03",
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"\x04",
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"\x05",
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"\x06",
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"\x07",
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"\x08",
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"\x09",
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"\x0A",
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"\x0B",
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"\x0C",
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"\x0D",
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"\x0E",
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"\x0F",
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"\x10",
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"\x11",
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"\x12",
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"\x13",
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"\x14",
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"\x15",
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"\x16",
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"\x17",
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"\x18",
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"\x19",
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"\x1A",
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"\x1B",
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"\x1C",
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"\x1D",
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"\x1E",
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"\x1F",
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"\x7F",
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"\x80",
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"\x81",
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"\x82",
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"\x83",
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"\x84",
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"\x85",
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"\x86",
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"\x87",
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"\x88",
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"\x89",
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"\x8A",
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"\x8B",
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"\x8C",
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"\x8D",
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"\x8E",
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"\x8F",
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"\x90",
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"\x91",
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"\x92",
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"\x93",
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"\x94",
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"\x95",
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"\x96",
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"\x97",
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"\x98",
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"\x99",
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"\x9A",
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"\x9B",
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"\x9C",
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"\x9D",
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"\x9E",
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"\x9F",
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"\xA0",
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"\xA1",
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"\xA2",
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"\xA3",
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"\xA4",
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"\xA5",
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"\xA6",
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"\xA7",
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"\xA8",
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"\xA9",
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"\xAA",
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"\xAB",
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"\xAC",
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"\xAD",
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"\xAE",
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"\xAF",
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"\xB0",
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"\xB1",
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"\xB2",
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"\xB3",
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"\xB4",
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"\xB5",
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"\xB6",
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"\xB7",
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"\xB8",
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"\xB9",
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"\xBA",
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"\xBB",
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"\xBC",
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"\xBD",
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"\xBE",
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"\xBF",
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"\xC0",
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"\xC1",
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"\xC2",
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"\xC3",
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"\xC4",
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"\xC5",
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"\xC6",
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"\xC7",
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"\xC8",
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"\xC9",
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"\xCA",
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"\xCB",
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"\xCC",
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"\xCD",
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"\xCE",
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"\xCF",
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"\xD0",
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"\xD1",
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"\xD2",
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"\xD3",
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"\xD4",
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"\xD5",
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"\xD6",
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"\xD7",
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"\xD8",
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"\xD9",
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"\xDA",
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"\xDB",
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"\xDC",
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"\xDD",
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"\xDE",
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"\xDF",
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"\xE0",
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"\xE1",
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"\xE2",
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"\xE3",
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"\xE4",
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"\xE5",
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"\xE6",
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"\xE7",
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"\xE8",
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"\xE9",
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"\xEA",
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"\xEB",
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"\xEC",
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"\xED",
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"\xEE",
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"\xEF",
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"\xF0",
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"\xF1",
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"\xF2",
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"\xF3",
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"\xF4",
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"\xF5",
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"\xF6",
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"\xF7",
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"\xF8",
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"\xF9",
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"\xFA",
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"\xFB",
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"\xFC",
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"\xFD",
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"\xFE",
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"\xFF"
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);
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/**
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* @var array
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*/
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public static $qpReplaceValues = array(
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"=00",
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"=01",
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"=02",
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"=03",
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"=04",
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"=05",
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"=06",
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"=07",
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"=08",
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"=09",
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"=0A",
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"=0B",
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"=0C",
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"=0D",
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"=0E",
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"=0F",
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"=10",
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"=11",
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"=12",
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"=13",
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"=14",
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"=15",
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"=16",
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"=17",
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"=18",
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"=19",
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"=1A",
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"=1B",
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"=1C",
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"=1D",
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"=1E",
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"=1F",
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"=7F",
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"=80",
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"=81",
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"=82",
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"=83",
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"=84",
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"=85",
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"=86",
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"=87",
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"=88",
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"=89",
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"=8A",
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"=8B",
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"=8C",
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"=8D",
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"=8E",
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"=8F",
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"=90",
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"=91",
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"=92",
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"=93",
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"=94",
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"=95",
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"=96",
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"=97",
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"=98",
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"=99",
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"=9A",
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"=9B",
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"=9C",
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"=9D",
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"=9E",
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"=9F",
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"=A0",
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"=A1",
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"=A2",
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"=A3",
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"=A4",
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"=A5",
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"=A6",
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"=A7",
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"=A8",
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"=A9",
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"=AA",
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"=AB",
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"=AC",
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"=AD",
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"=AE",
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"=AF",
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"=B0",
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"=B1",
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"=B2",
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"=B3",
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"=B4",
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"=B5",
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"=B6",
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"=B7",
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"=B8",
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"=B9",
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"=BA",
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"=BB",
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"=BC",
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"=BD",
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"=BE",
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"=BF",
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"=C0",
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"=C1",
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"=C2",
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"=C3",
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"=C4",
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"=C5",
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"=C6",
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"=C7",
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"=C8",
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"=C9",
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"=CA",
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"=CB",
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"=CC",
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"=CD",
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"=CE",
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"=CF",
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"=D0",
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"=D1",
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"=D2",
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"=D3",
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"=D4",
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"=D5",
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"=D6",
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"=D7",
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"=D8",
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"=D9",
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"=DA",
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"=DB",
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"=DC",
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"=DD",
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"=DE",
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"=DF",
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"=E0",
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"=E1",
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"=E2",
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"=E3",
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"=E4",
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"=E5",
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"=E6",
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"=E7",
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"=E8",
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"=E9",
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"=EA",
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"=EB",
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"=EC",
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"=ED",
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"=EE",
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"=EF",
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"=F0",
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"=F1",
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"=F2",
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"=F3",
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"=F4",
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"=F5",
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"=F6",
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"=F7",
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"=F8",
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"=F9",
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"=FA",
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"=FB",
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"=FC",
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"=FD",
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"=FE",
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"=FF"
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);
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/**
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* @var string
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*/
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public static $qpKeysString =
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"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F\x7F\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8A\x8B\x8C\x8D\x8E\x8F\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9A\x9B\x9C\x9D\x9E\x9F\xA0\xA1\xA2\xA3\xA4\xA5\xA6\xA7\xA8\xA9\xAA\xAB\xAC\xAD\xAE\xAF\xB0\xB1\xB2\xB3\xB4\xB5\xB6\xB7\xB8\xB9\xBA\xBB\xBC\xBD\xBE\xBF\xC0\xC1\xC2\xC3\xC4\xC5\xC6\xC7\xC8\xC9\xCA\xCB\xCC\xCD\xCE\xCF\xD0\xD1\xD2\xD3\xD4\xD5\xD6\xD7\xD8\xD9\xDA\xDB\xDC\xDD\xDE\xDF\xE0\xE1\xE2\xE3\xE4\xE5\xE6\xE7\xE8\xE9\xEA\xEB\xEC\xED\xEE\xEF\xF0\xF1\xF2\xF3\xF4\xF5\xF6\xF7\xF8\xF9\xFA\xFB\xFC\xFD\xFE\xFF";
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/**
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* Check if the given string is "printable"
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*
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* Checks that a string contains no unprintable characters. If this returns
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* false, encode the string for secure delivery.
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*
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* @param string $str
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* @return boolean
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*/
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public static function isPrintable($str)
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{
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return (strcspn($str, self::$qpKeysString) == strlen($str));
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}
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/**
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* Encode a given string with the QUOTED_PRINTABLE mechanism and wrap the lines.
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*
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* @param string $str
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* @param int $lineLength Line length; defaults to {@link LINELENGTH}
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* @param string $lineEnd Line end; defaults to {@link LINEEND}
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* @return string
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*/
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public static function encodeQuotedPrintable(
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$str,
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$lineLength = self::LINELENGTH,
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$lineEnd = self::LINEEND
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)
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{
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$out = '';
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$str = self::_encodeQuotedPrintable($str);
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// Split encoded text into separate lines
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while (strlen($str) > 0) {
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$ptr = strlen($str);
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if ($ptr > $lineLength) {
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$ptr = $lineLength;
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}
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// Ensure we are not splitting across an encoded character
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$pos = strrpos(substr($str, 0, $ptr), '=');
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if ($pos !== false && $pos >= $ptr - 2) {
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$ptr = $pos;
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}
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// Check if there is a space at the end of the line and rewind
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if ($ptr > 0 && $str[$ptr - 1] == ' ') {
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--$ptr;
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}
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// Add string and continue
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$out .= substr($str, 0, $ptr) . '=' . $lineEnd;
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$str = substr($str, $ptr);
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}
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$out = rtrim($out, $lineEnd);
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$out = rtrim($out, '=');
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return $out;
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}
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/**
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* Converts a string into quoted printable format.
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*
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* @param string $str
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* @return string
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*/
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private static function _encodeQuotedPrintable($str)
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{
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$str = str_replace('=', '=3D', $str);
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$str = str_replace(self::$qpKeys, self::$qpReplaceValues, $str);
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$str = rtrim($str);
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return $str;
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}
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/**
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* Encode a given string with the QUOTED_PRINTABLE mechanism for Mail Headers.
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*
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* Mail headers depend on an extended quoted printable algorithm otherwise
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* a range of bugs can occur.
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*
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* @param string $str
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* @param string $charset
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* @param int $lineLength Line length; defaults to {@link LINELENGTH}
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* @param string $lineEnd Line end; defaults to {@link LINEEND}
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* @return string
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*/
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public static function encodeQuotedPrintableHeader(
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$str, $charset, $lineLength = self::LINELENGTH, $lineEnd = self::LINEEND
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)
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{
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// Reduce line-length by the length of the required delimiter, charsets and encoding
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$prefix = sprintf('=?%s?Q?', $charset);
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$lineLength = $lineLength - strlen($prefix) - 3;
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$str = self::_encodeQuotedPrintable($str);
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// Mail-Header required chars have to be encoded also:
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$str = str_replace(
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array('?', ' ', '_', ','), array('=3F', '=20', '=5F', '=2C'), $str
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);
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// initialize first line, we need it anyways
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$lines = array(0 => "");
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// Split encoded text into separate lines
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$tmp = "";
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while (strlen($str) > 0) {
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$currentLine = max(count($lines) - 1, 0);
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$token = self::getNextQuotedPrintableToken($str);
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$str = substr($str, strlen($token));
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$tmp .= $token;
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if ($token == '=20') {
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// only if we have a single char token or space, we can append the
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// tempstring it to the current line or start a new line if necessary.
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if (strlen($lines[$currentLine] . $tmp) > $lineLength) {
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$lines[$currentLine + 1] = $tmp;
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} else {
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$lines[$currentLine] .= $tmp;
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}
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$tmp = "";
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}
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// don't forget to append the rest to the last line
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if (strlen($str) == 0) {
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$lines[$currentLine] .= $tmp;
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}
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}
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// assemble the lines together by pre- and appending delimiters, charset, encoding.
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for ($i = 0; $i < count($lines); $i++) {
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$lines[$i] = " " . $prefix . $lines[$i] . "?=";
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}
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$str = trim(implode($lineEnd, $lines));
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return $str;
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}
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|
|
/**
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* Retrieves the first token from a quoted printable string.
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|
*
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* @param string $str
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* @return string
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*/
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|
private static function getNextQuotedPrintableToken($str)
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|
{
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if (substr($str, 0, 1) == "=") {
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$token = substr($str, 0, 3);
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} else {
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$token = substr($str, 0, 1);
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}
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return $token;
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}
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|
|
/**
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|
* Encode a given string in mail header compatible base64 encoding.
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|
*
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|
* @param string $str
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* @param string $charset
|
|
* @param int $lineLength Line length; defaults to {@link LINELENGTH}
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|
* @param string $lineEnd Line end; defaults to {@link LINEEND}
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* @return string
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|
*/
|
|
public static function encodeBase64Header(
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|
$str, $charset, $lineLength = self::LINELENGTH, $lineEnd = self::LINEEND
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)
|
|
{
|
|
$prefix = '=?' . $charset . '?B?';
|
|
$suffix = '?=';
|
|
$remainingLength = $lineLength - strlen($prefix) - strlen($suffix);
|
|
|
|
$encodedValue = self::encodeBase64($str, $remainingLength, $lineEnd);
|
|
$encodedValue = str_replace(
|
|
$lineEnd, $suffix . $lineEnd . ' ' . $prefix, $encodedValue
|
|
);
|
|
$encodedValue = $prefix . $encodedValue . $suffix;
|
|
|
|
return $encodedValue;
|
|
}
|
|
|
|
/**
|
|
* Encode a given string in base64 encoding and break lines
|
|
* according to the maximum linelength.
|
|
*
|
|
* @param string $str
|
|
* @param int $lineLength Line length; defaults to {@link LINELENGTH}
|
|
* @param string $lineEnd Line end; defaults to {@link LINEEND}
|
|
* @return string
|
|
*/
|
|
public static function encodeBase64(
|
|
$str, $lineLength = self::LINELENGTH, $lineEnd = self::LINEEND
|
|
)
|
|
{
|
|
return rtrim(chunk_split(base64_encode($str), $lineLength, $lineEnd));
|
|
}
|
|
|
|
/**
|
|
* Constructor
|
|
*
|
|
* @param null|string $boundary
|
|
*/
|
|
public function __construct($boundary = null)
|
|
{
|
|
// This string needs to be somewhat unique
|
|
if ($boundary === null) {
|
|
$this->_boundary = '=_' . md5(microtime(1) . self::$makeUnique++);
|
|
} else {
|
|
$this->_boundary = $boundary;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Encode the given string with the given encoding.
|
|
*
|
|
* @param string $str
|
|
* @param string $encoding
|
|
* @param string $EOL Line end; defaults to {@link Zend_Mime::LINEEND}
|
|
* @return string
|
|
*/
|
|
public static function encode($str, $encoding, $EOL = self::LINEEND)
|
|
{
|
|
switch ($encoding) {
|
|
case self::ENCODING_BASE64:
|
|
return self::encodeBase64($str, self::LINELENGTH, $EOL);
|
|
|
|
case self::ENCODING_QUOTEDPRINTABLE:
|
|
return self::encodeQuotedPrintable($str, self::LINELENGTH, $EOL);
|
|
|
|
default:
|
|
/**
|
|
* @todo 7Bit and 8Bit is currently handled the same way.
|
|
*/
|
|
return $str;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return a MIME boundary
|
|
*
|
|
* @access public
|
|
* @return string
|
|
*/
|
|
public function boundary()
|
|
{
|
|
return $this->_boundary;
|
|
}
|
|
|
|
/**
|
|
* Return a MIME boundary line
|
|
*
|
|
* @param string $EOL Line end; defaults to {@link LINEEND}
|
|
* @return string
|
|
*/
|
|
public function boundaryLine($EOL = self::LINEEND)
|
|
{
|
|
return $EOL . '--' . $this->_boundary . $EOL;
|
|
}
|
|
|
|
/**
|
|
* Return MIME ending
|
|
*
|
|
* @param string $EOL Line end; defaults to {@link LINEEND}
|
|
* @return string
|
|
*/
|
|
public function mimeEnd($EOL = self::LINEEND)
|
|
{
|
|
return $EOL . '--' . $this->_boundary . '--' . $EOL;
|
|
}
|
|
}
|