| 1 | <?php |
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| 2 | /** |
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| 3 | * The Mail_mimeDecode class is used to decode mail/mime messages |
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| 4 | * |
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| 5 | * This class will parse a raw mime email and return |
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| 6 | * the structure. Returned structure is similar to |
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| 7 | * that returned by imap_fetchstructure(). |
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| 8 | * |
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| 9 | * +----------------------------- IMPORTANT ------------------------------+ |
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| 10 | * | Usage of this class compared to native php extensions such as | |
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| 11 | * | mailparse or imap, is slow and may be feature deficient. If available| |
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| 12 | * | you are STRONGLY recommended to use the php extensions. | |
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| 13 | * +----------------------------------------------------------------------+ |
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| 14 | * |
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| 15 | * Compatible with PHP versions 4 and 5 |
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| 16 | * |
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| 17 | * LICENSE: This LICENSE is in the BSD license style. |
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| 18 | * Copyright (c) 2002-2003, Richard Heyes <richard@phpguru.org> |
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| 19 | * Copyright (c) 2003-2006, PEAR <pear-group@php.net> |
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| 20 | * All rights reserved. |
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| 21 | * |
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| 22 | * Redistribution and use in source and binary forms, with or |
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| 23 | * without modification, are permitted provided that the following |
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| 24 | * conditions are met: |
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| 25 | * |
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| 26 | * - Redistributions of source code must retain the above copyright |
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| 27 | * notice, this list of conditions and the following disclaimer. |
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| 28 | * - Redistributions in binary form must reproduce the above copyright |
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| 29 | * notice, this list of conditions and the following disclaimer in the |
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| 30 | * documentation and/or other materials provided with the distribution. |
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| 31 | * - Neither the name of the authors, nor the names of its contributors |
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| 32 | * may be used to endorse or promote products derived from this |
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| 33 | * software without specific prior written permission. |
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| 34 | * |
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| 35 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 36 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 37 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 38 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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| 39 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 40 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 41 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 42 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 43 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 44 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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| 45 | * THE POSSIBILITY OF SUCH DAMAGE. |
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| 46 | * |
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| 47 | * @category Mail |
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| 48 | * @package Mail_Mime |
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| 49 | * @author Richard Heyes <richard@phpguru.org> |
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| 50 | * @author George Schlossnagle <george@omniti.com> |
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| 51 | * @author Cipriano Groenendal <cipri@php.net> |
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| 52 | * @author Sean Coates <sean@php.net> |
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| 53 | * @copyright 2003-2006 PEAR <pear-group@php.net> |
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| 54 | * @license http://www.opensource.org/licenses/bsd-license.php BSD License |
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| 55 | * @version CVS: $Id$ |
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| 56 | * @link http://pear.php.net/package/Mail_mime |
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| 57 | */ |
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| 58 | |
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| 59 | |
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| 60 | /** |
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| 61 | * require PEAR |
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| 62 | * |
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| 63 | * This package depends on PEAR to raise errors. |
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| 64 | */ |
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| 65 | require_once 'PEAR.php'; |
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| 66 | |
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| 67 | |
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| 68 | /** |
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| 69 | * The Mail_mimeDecode class is used to decode mail/mime messages |
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| 70 | * |
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| 71 | * This class will parse a raw mime email and return the structure. |
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| 72 | * Returned structure is similar to that returned by imap_fetchstructure(). |
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| 73 | * |
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| 74 | * +----------------------------- IMPORTANT ------------------------------+ |
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| 75 | * | Usage of this class compared to native php extensions such as | |
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| 76 | * | mailparse or imap, is slow and may be feature deficient. If available| |
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| 77 | * | you are STRONGLY recommended to use the php extensions. | |
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| 78 | * +----------------------------------------------------------------------+ |
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| 79 | * |
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| 80 | * @category Mail |
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| 81 | * @package Mail_Mime |
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| 82 | * @author Richard Heyes <richard@phpguru.org> |
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| 83 | * @author George Schlossnagle <george@omniti.com> |
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| 84 | * @author Cipriano Groenendal <cipri@php.net> |
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| 85 | * @author Sean Coates <sean@php.net> |
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| 86 | * @copyright 2003-2006 PEAR <pear-group@php.net> |
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| 87 | * @license http://www.opensource.org/licenses/bsd-license.php BSD License |
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| 88 | * @version Release: @package_version@ |
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| 89 | * @link http://pear.php.net/package/Mail_mime |
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| 90 | */ |
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| 91 | class Mail_mimeDecode extends PEAR |
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| 92 | { |
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| 93 | /** |
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| 94 | * The raw email to decode |
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| 95 | * |
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| 96 | * @var string |
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| 97 | * @access private |
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| 98 | */ |
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| 99 | var $_input; |
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| 100 | |
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| 101 | /** |
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| 102 | * The header part of the input |
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| 103 | * |
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| 104 | * @var string |
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| 105 | * @access private |
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| 106 | */ |
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| 107 | var $_header; |
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| 108 | |
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| 109 | /** |
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| 110 | * The body part of the input |
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| 111 | * |
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| 112 | * @var string |
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| 113 | * @access private |
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| 114 | */ |
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| 115 | var $_body; |
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| 116 | |
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| 117 | /** |
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| 118 | * If an error occurs, this is used to store the message |
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| 119 | * |
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| 120 | * @var string |
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| 121 | * @access private |
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| 122 | */ |
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| 123 | var $_error; |
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| 124 | |
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| 125 | /** |
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| 126 | * Flag to determine whether to include bodies in the |
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| 127 | * returned object. |
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| 128 | * |
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| 129 | * @var boolean |
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| 130 | * @access private |
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| 131 | */ |
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| 132 | var $_include_bodies; |
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| 133 | |
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| 134 | /** |
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| 135 | * Flag to determine whether to decode bodies |
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| 136 | * |
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| 137 | * @var boolean |
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| 138 | * @access private |
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| 139 | */ |
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| 140 | var $_decode_bodies; |
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| 141 | |
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| 142 | /** |
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| 143 | * Flag to determine whether to decode headers |
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| 144 | * |
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| 145 | * @var boolean |
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| 146 | * @access private |
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| 147 | */ |
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| 148 | var $_decode_headers; |
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| 149 | |
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| 150 | /** |
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| 151 | * Constructor. |
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| 152 | * |
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| 153 | * Sets up the object, initialise the variables, and splits and |
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| 154 | * stores the header and body of the input. |
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| 155 | * |
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| 156 | * @param string The input to decode |
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| 157 | * @access public |
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| 158 | */ |
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| 159 | function Mail_mimeDecode($input) |
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| 160 | { |
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| 161 | list($header, $body) = $this->_splitBodyHeader($input); |
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| 162 | |
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| 163 | $this->_input = $input; |
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| 164 | $this->_header = $header; |
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| 165 | $this->_body = $body; |
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| 166 | $this->_decode_bodies = false; |
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| 167 | $this->_include_bodies = true; |
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| 168 | } |
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| 169 | |
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| 170 | /** |
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| 171 | * Begins the decoding process. If called statically |
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| 172 | * it will create an object and call the decode() method |
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| 173 | * of it. |
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| 174 | * |
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| 175 | * @param array An array of various parameters that determine |
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| 176 | * various things: |
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| 177 | * include_bodies - Whether to include the body in the returned |
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| 178 | * object. |
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| 179 | * decode_bodies - Whether to decode the bodies |
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| 180 | * of the parts. (Transfer encoding) |
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| 181 | * decode_headers - Whether to decode headers |
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| 182 | * input - If called statically, this will be treated |
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| 183 | * as the input |
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| 184 | * @return object Decoded results |
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| 185 | * @access public |
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| 186 | */ |
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| 187 | function decode($params = null) |
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| 188 | { |
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| 189 | // determine if this method has been called statically |
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| 190 | $isStatic = !(isset($this) && get_class($this) == __CLASS__); |
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| 191 | |
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| 192 | // Have we been called statically? |
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| 193 | // If so, create an object and pass details to that. |
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| 194 | if ($isStatic AND isset($params['input'])) { |
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| 195 | |
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| 196 | $obj = new Mail_mimeDecode($params['input']); |
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| 197 | $structure = $obj->decode($params); |
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| 198 | |
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| 199 | // Called statically but no input |
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| 200 | } elseif ($isStatic) { |
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| 201 | return PEAR::raiseError('Called statically and no input given'); |
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| 202 | |
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| 203 | // Called via an object |
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| 204 | } else { |
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| 205 | $this->_include_bodies = isset($params['include_bodies']) ? |
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| 206 | $params['include_bodies'] : false; |
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| 207 | $this->_decode_bodies = isset($params['decode_bodies']) ? |
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| 208 | $params['decode_bodies'] : false; |
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| 209 | $this->_decode_headers = isset($params['decode_headers']) ? |
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| 210 | $params['decode_headers'] : false; |
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| 211 | |
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| 212 | $structure = $this->_decode($this->_header, $this->_body); |
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| 213 | if ($structure === false) { |
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| 214 | $structure = $this->raiseError($this->_error); |
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| 215 | } |
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| 216 | } |
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| 217 | |
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| 218 | return $structure; |
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| 219 | } |
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| 220 | |
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| 221 | /** |
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| 222 | * Performs the decoding. Decodes the body string passed to it |
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| 223 | * If it finds certain content-types it will call itself in a |
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| 224 | * recursive fashion |
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| 225 | * |
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| 226 | * @param string Header section |
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| 227 | * @param string Body section |
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| 228 | * @return object Results of decoding process |
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| 229 | * @access private |
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| 230 | */ |
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| 231 | function _decode($headers, $body, $default_ctype = 'text/plain') |
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| 232 | { |
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| 233 | $return = new stdClass; |
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| 234 | $return->headers = array(); |
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| 235 | $headers = $this->_parseHeaders($headers); |
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| 236 | |
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| 237 | foreach ($headers as $value) { |
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| 238 | if (isset($return->headers[strtolower($value['name'])]) AND !is_array($return->headers[strtolower($value['name'])])) { |
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| 239 | $return->headers[strtolower($value['name'])] = array($return->headers[strtolower($value['name'])]); |
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| 240 | $return->headers[strtolower($value['name'])][] = $value['value']; |
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| 241 | |
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| 242 | } elseif (isset($return->headers[strtolower($value['name'])])) { |
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| 243 | $return->headers[strtolower($value['name'])][] = $value['value']; |
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| 244 | |
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| 245 | } else { |
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| 246 | $return->headers[strtolower($value['name'])] = $value['value']; |
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| 247 | } |
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| 248 | } |
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| 249 | |
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| 250 | reset($headers); |
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| 251 | while (list($key, $value) = each($headers)) { |
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| 252 | $headers[$key]['name'] = strtolower($headers[$key]['name']); |
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| 253 | switch ($headers[$key]['name']) { |
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| 254 | |
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| 255 | case 'content-type': |
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| 256 | $content_type = $this->_parseHeaderValue($headers[$key]['value']); |
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| 257 | |
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| 258 | if (preg_match('/([0-9a-z+.-]+)\/([0-9a-z+.-]+)/i', $content_type['value'], $regs)) { |
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| 259 | $return->ctype_primary = $regs[1]; |
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| 260 | $return->ctype_secondary = $regs[2]; |
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| 261 | } |
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| 262 | |
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| 263 | if (isset($content_type['other'])) { |
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| 264 | while (list($p_name, $p_value) = each($content_type['other'])) { |
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| 265 | $return->ctype_parameters[$p_name] = $p_value; |
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| 266 | } |
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| 267 | } |
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| 268 | break; |
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| 269 | |
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| 270 | case 'content-disposition': |
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| 271 | $content_disposition = $this->_parseHeaderValue($headers[$key]['value']); |
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| 272 | $return->disposition = $content_disposition['value']; |
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| 273 | if (isset($content_disposition['other'])) { |
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| 274 | while (list($p_name, $p_value) = each($content_disposition['other'])) { |
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| 275 | $return->d_parameters[$p_name] = $p_value; |
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| 276 | } |
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| 277 | } |
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| 278 | break; |
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| 279 | |
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| 280 | case 'content-transfer-encoding': |
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| 281 | $content_transfer_encoding = $this->_parseHeaderValue($headers[$key]['value']); |
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| 282 | break; |
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| 283 | } |
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| 284 | } |
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| 285 | |
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| 286 | if (isset($content_type)) { |
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| 287 | switch (strtolower($content_type['value'])) { |
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| 288 | case 'text/plain': |
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| 289 | $encoding = isset($content_transfer_encoding) ? $content_transfer_encoding['value'] : '7bit'; |
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| 290 | $this->_include_bodies ? $return->body = ($this->_decode_bodies ? $this->_decodeBody($body, $encoding) : $body) : null; |
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| 291 | break; |
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| 292 | |
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| 293 | case 'text/html': |
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| 294 | $encoding = isset($content_transfer_encoding) ? $content_transfer_encoding['value'] : '7bit'; |
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| 295 | $this->_include_bodies ? $return->body = ($this->_decode_bodies ? $this->_decodeBody($body, $encoding) : $body) : null; |
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| 296 | break; |
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| 297 | |
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| 298 | case 'multipart/parallel': |
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| 299 | case 'multipart/appledouble': // Appledouble mail |
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| 300 | case 'multipart/report': // RFC1892 |
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| 301 | case 'multipart/signed': // PGP |
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| 302 | case 'multipart/digest': |
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| 303 | case 'multipart/alternative': |
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| 304 | case 'multipart/related': |
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| 305 | case 'multipart/mixed': |
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| 306 | if(!isset($content_type['other']['boundary'])){ |
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| 307 | $this->_error = 'No boundary found for ' . $content_type['value'] . ' part'; |
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| 308 | return false; |
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| 309 | } |
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| 310 | |
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| 311 | $default_ctype = (strtolower($content_type['value']) === 'multipart/digest') ? 'message/rfc822' : 'text/plain'; |
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| 312 | |
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| 313 | $parts = $this->_boundarySplit($body, $content_type['other']['boundary']); |
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| 314 | for ($i = 0; $i < count($parts); $i++) { |
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| 315 | list($part_header, $part_body) = $this->_splitBodyHeader($parts[$i]); |
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| 316 | $part = $this->_decode($part_header, $part_body, $default_ctype); |
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| 317 | if($part === false) |
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| 318 | $part = $this->raiseError($this->_error); |
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| 319 | $return->parts[] = $part; |
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| 320 | } |
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| 321 | break; |
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| 322 | |
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| 323 | case 'message/rfc822': |
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| 324 | $obj = &new Mail_mimeDecode($body); |
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| 325 | $return->parts[] = $obj->decode(array('include_bodies' => $this->_include_bodies, |
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| 326 | 'decode_bodies' => $this->_decode_bodies, |
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| 327 | 'decode_headers' => $this->_decode_headers)); |
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| 328 | unset($obj); |
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| 329 | break; |
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| 330 | |
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| 331 | default: |
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| 332 | if(!isset($content_transfer_encoding['value'])) |
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| 333 | $content_transfer_encoding['value'] = '7bit'; |
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| 334 | $this->_include_bodies ? $return->body = ($this->_decode_bodies ? $this->_decodeBody($body, $content_transfer_encoding['value']) : $body) : null; |
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| 335 | break; |
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| 336 | } |
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| 337 | |
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| 338 | } else { |
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| 339 | $ctype = explode('/', $default_ctype); |
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| 340 | $return->ctype_primary = $ctype[0]; |
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| 341 | $return->ctype_secondary = $ctype[1]; |
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| 342 | $this->_include_bodies ? $return->body = ($this->_decode_bodies ? $this->_decodeBody($body) : $body) : null; |
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| 343 | } |
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| 344 | |
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| 345 | return $return; |
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| 346 | } |
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| 347 | |
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| 348 | /** |
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| 349 | * Given the output of the above function, this will return an |
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| 350 | * array of references to the parts, indexed by mime number. |
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| 351 | * |
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| 352 | * @param object $structure The structure to go through |
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| 353 | * @param string $mime_number Internal use only. |
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| 354 | * @return array Mime numbers |
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| 355 | */ |
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| 356 | function &getMimeNumbers(&$structure, $no_refs = false, $mime_number = '', $prepend = '') |
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| 357 | { |
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| 358 | $return = array(); |
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| 359 | if (!empty($structure->parts)) { |
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| 360 | if ($mime_number != '') { |
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| 361 | $structure->mime_id = $prepend . $mime_number; |
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| 362 | $return[$prepend . $mime_number] = &$structure; |
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| 363 | } |
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| 364 | for ($i = 0; $i < count($structure->parts); $i++) { |
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| 365 | |
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| 366 | |
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| 367 | if (!empty($structure->headers['content-type']) AND substr(strtolower($structure->headers['content-type']), 0, 8) == 'message/') { |
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| 368 | $prepend = $prepend . $mime_number . '.'; |
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| 369 | $_mime_number = ''; |
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| 370 | } else { |
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| 371 | $_mime_number = ($mime_number == '' ? $i + 1 : sprintf('%s.%s', $mime_number, $i + 1)); |
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| 372 | } |
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| 373 | |
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| 374 | $arr = &Mail_mimeDecode::getMimeNumbers($structure->parts[$i], $no_refs, $_mime_number, $prepend); |
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| 375 | foreach ($arr as $key => $val) { |
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| 376 | $no_refs ? $return[$key] = '' : $return[$key] = &$arr[$key]; |
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| 377 | } |
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| 378 | } |
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| 379 | } else { |
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| 380 | if ($mime_number == '') { |
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| 381 | $mime_number = '1'; |
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| 382 | } |
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| 383 | $structure->mime_id = $prepend . $mime_number; |
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| 384 | $no_refs ? $return[$prepend . $mime_number] = '' : $return[$prepend . $mime_number] = &$structure; |
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| 385 | } |
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| 386 | |
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| 387 | return $return; |
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| 388 | } |
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| 389 | |
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| 390 | /** |
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| 391 | * Given a string containing a header and body |
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| 392 | * section, this function will split them (at the first |
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| 393 | * blank line) and return them. |
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| 394 | * |
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| 395 | * @param string Input to split apart |
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| 396 | * @return array Contains header and body section |
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| 397 | * @access private |
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| 398 | */ |
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| 399 | function _splitBodyHeader($input) |
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| 400 | { |
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| 401 | if (preg_match("/^(.*?)\r?\n\r?\n(.*)/s", $input, $match)) { |
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| 402 | return array($match[1], $match[2]); |
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| 403 | } |
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| 404 | $this->_error = 'Could not split header and body'; |
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| 405 | return false; |
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| 406 | } |
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| 407 | |
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| 408 | /** |
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| 409 | * Parse headers given in $input and return |
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| 410 | * as assoc array. |
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| 411 | * |
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| 412 | * @param string Headers to parse |
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| 413 | * @return array Contains parsed headers |
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| 414 | * @access private |
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| 415 | */ |
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| 416 | function _parseHeaders($input) |
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| 417 | { |
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| 418 | |
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| 419 | if ($input !== '') { |
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| 420 | // Unfold the input |
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| 421 | $input = preg_replace("/\r?\n/", "\r\n", $input); |
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| 422 | $input = preg_replace("/\r\n(\t| )+/", ' ', $input); |
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| 423 | $headers = explode("\r\n", trim($input)); |
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| 424 | |
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| 425 | foreach ($headers as $value) { |
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| 426 | $hdr_name = substr($value, 0, $pos = strpos($value, ':')); |
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| 427 | $hdr_value = substr($value, $pos+1); |
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| 428 | if($hdr_value[0] == ' ') |
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| 429 | $hdr_value = substr($hdr_value, 1); |
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| 430 | |
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| 431 | $return[] = array( |
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| 432 | 'name' => $hdr_name, |
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| 433 | 'value' => $this->_decode_headers ? $this->_decodeHeader($hdr_value) : $hdr_value |
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| 434 | ); |
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| 435 | } |
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| 436 | } else { |
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| 437 | $return = array(); |
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| 438 | } |
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| 439 | |
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| 440 | return $return; |
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| 441 | } |
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| 442 | |
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| 443 | /** |
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| 444 | * Function to parse a header value, |
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| 445 | * extract first part, and any secondary |
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| 446 | * parts (after ;) This function is not as |
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| 447 | * robust as it could be. Eg. header comments |
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| 448 | * in the wrong place will probably break it. |
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| 449 | * |
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| 450 | * @param string Header value to parse |
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| 451 | * @return array Contains parsed result |
|---|
| 452 | * @access private |
|---|
| 453 | */ |
|---|
| 454 | function _parseHeaderValue($input) |
|---|
| 455 | { |
|---|
| 456 | |
|---|
| 457 | if (($pos = strpos($input, ';')) !== false) { |
|---|
| 458 | |
|---|
| 459 | $return['value'] = trim(substr($input, 0, $pos)); |
|---|
| 460 | $input = trim(substr($input, $pos+1)); |
|---|
| 461 | |
|---|
| 462 | if (strlen($input) > 0) { |
|---|
| 463 | |
|---|
| 464 | // This splits on a semi-colon, if there's no preceeding backslash |
|---|
| 465 | // Now works with quoted values; had to glue the \; breaks in PHP |
|---|
| 466 | // the regex is already bordering on incomprehensible |
|---|
| 467 | $splitRegex = '/([^;\'"]*[\'"]([^\'"]*([^\'"]*)*)[\'"][^;\'"]*|([^;]+))(;|$)/'; |
|---|
| 468 | preg_match_all($splitRegex, $input, $matches); |
|---|
| 469 | $parameters = array(); |
|---|
| 470 | for ($i=0; $i<count($matches[0]); $i++) { |
|---|
| 471 | $param = $matches[0][$i]; |
|---|
| 472 | while (substr($param, -2) == '\;') { |
|---|
| 473 | $param .= $matches[0][++$i]; |
|---|
| 474 | } |
|---|
| 475 | $parameters[] = $param; |
|---|
| 476 | } |
|---|
| 477 | |
|---|
| 478 | for ($i = 0; $i < count($parameters); $i++) { |
|---|
| 479 | $param_name = trim(substr($parameters[$i], 0, $pos = strpos($parameters[$i], '=')), "'\";\t\\ "); |
|---|
| 480 | $param_value = trim(str_replace('\;', ';', substr($parameters[$i], $pos + 1)), "'\";\t\\ "); |
|---|
| 481 | if ($param_value[0] == '"') { |
|---|
| 482 | $param_value = substr($param_value, 1, -1); |
|---|
| 483 | } |
|---|
| 484 | $return['other'][$param_name] = $param_value; |
|---|
| 485 | $return['other'][strtolower($param_name)] = $param_value; |
|---|
| 486 | } |
|---|
| 487 | } |
|---|
| 488 | } else { |
|---|
| 489 | $return['value'] = trim($input); |
|---|
| 490 | } |
|---|
| 491 | |
|---|
| 492 | return $return; |
|---|
| 493 | } |
|---|
| 494 | |
|---|
| 495 | /** |
|---|
| 496 | * This function splits the input based |
|---|
| 497 | * on the given boundary |
|---|
| 498 | * |
|---|
| 499 | * @param string Input to parse |
|---|
| 500 | * @return array Contains array of resulting mime parts |
|---|
| 501 | * @access private |
|---|
| 502 | */ |
|---|
| 503 | function _boundarySplit($input, $boundary) |
|---|
| 504 | { |
|---|
| 505 | $parts = array(); |
|---|
| 506 | |
|---|
| 507 | $bs_possible = substr($boundary, 2, -2); |
|---|
| 508 | $bs_check = '\"' . $bs_possible . '\"'; |
|---|
| 509 | |
|---|
| 510 | if ($boundary == $bs_check) { |
|---|
| 511 | $boundary = $bs_possible; |
|---|
| 512 | } |
|---|
| 513 | |
|---|
| 514 | $tmp = explode('--' . $boundary, $input); |
|---|
| 515 | |
|---|
| 516 | for ($i = 1; $i < count($tmp) - 1; $i++) { |
|---|
| 517 | $parts[] = $tmp[$i]; |
|---|
| 518 | } |
|---|
| 519 | |
|---|
| 520 | return $parts; |
|---|
| 521 | } |
|---|
| 522 | |
|---|
| 523 | /** |
|---|
| 524 | * Given a header, this function will decode it |
|---|
| 525 | * according to RFC2047. Probably not *exactly* |
|---|
| 526 | * conformant, but it does pass all the given |
|---|
| 527 | * examples (in RFC2047). |
|---|
| 528 | * |
|---|
| 529 | * @param string Input header value to decode |
|---|
| 530 | * @return string Decoded header value |
|---|
| 531 | * @access private |
|---|
| 532 | */ |
|---|
| 533 | function _decodeHeader($input) |
|---|
| 534 | { |
|---|
| 535 | // Remove white space between encoded-words |
|---|
| 536 | $input = preg_replace('/(=\?[^?]+\?(q|b)\?[^?]*\?=)(\s)+=\?/i', '\1=?', $input); |
|---|
| 537 | |
|---|
| 538 | // For each encoded-word... |
|---|
| 539 | while (preg_match('/(=\?([^?]+)\?(q|b)\?([^?]*)\?=)/i', $input, $matches)) { |
|---|
| 540 | |
|---|
| 541 | $encoded = $matches[1]; |
|---|
| 542 | $charset = $matches[2]; |
|---|
| 543 | $encoding = $matches[3]; |
|---|
| 544 | $text = $matches[4]; |
|---|
| 545 | |
|---|
| 546 | switch (strtolower($encoding)) { |
|---|
| 547 | case 'b': |
|---|
| 548 | $text = base64_decode($text); |
|---|
| 549 | break; |
|---|
| 550 | |
|---|
| 551 | case 'q': |
|---|
| 552 | $text = str_replace('_', ' ', $text); |
|---|
| 553 | preg_match_all('/=([a-f0-9]{2})/i', $text, $matches); |
|---|
| 554 | foreach($matches[1] as $value) |
|---|
| 555 | $text = str_replace('='.$value, chr(hexdec($value)), $text); |
|---|
| 556 | break; |
|---|
| 557 | } |
|---|
| 558 | |
|---|
| 559 | $input = str_replace($encoded, $text, $input); |
|---|
| 560 | } |
|---|
| 561 | |
|---|
| 562 | return $input; |
|---|
| 563 | } |
|---|
| 564 | |
|---|
| 565 | /** |
|---|
| 566 | * Given a body string and an encoding type, |
|---|
| 567 | * this function will decode and return it. |
|---|
| 568 | * |
|---|
| 569 | * @param string Input body to decode |
|---|
| 570 | * @param string Encoding type to use. |
|---|
| 571 | * @return string Decoded body |
|---|
| 572 | * @access private |
|---|
| 573 | */ |
|---|
| 574 | function _decodeBody($input, $encoding = '7bit') |
|---|
| 575 | { |
|---|
| 576 | switch (strtolower($encoding)) { |
|---|
| 577 | case '7bit': |
|---|
| 578 | return $input; |
|---|
| 579 | break; |
|---|
| 580 | |
|---|
| 581 | case 'quoted-printable': |
|---|
| 582 | return $this->_quotedPrintableDecode($input); |
|---|
| 583 | break; |
|---|
| 584 | |
|---|
| 585 | case 'base64': |
|---|
| 586 | return base64_decode($input); |
|---|
| 587 | break; |
|---|
| 588 | |
|---|
| 589 | default: |
|---|
| 590 | return $input; |
|---|
| 591 | } |
|---|
| 592 | } |
|---|
| 593 | |
|---|
| 594 | /** |
|---|
| 595 | * Given a quoted-printable string, this |
|---|
| 596 | * function will decode and return it. |
|---|
| 597 | * |
|---|
| 598 | * @param string Input body to decode |
|---|
| 599 | * @return string Decoded body |
|---|
| 600 | * @access private |
|---|
| 601 | */ |
|---|
| 602 | function _quotedPrintableDecode($input) |
|---|
| 603 | { |
|---|
| 604 | // Remove soft line breaks |
|---|
| 605 | $input = preg_replace("/=\r?\n/", '', $input); |
|---|
| 606 | |
|---|
| 607 | // Replace encoded characters |
|---|
| 608 | $input = preg_replace('/=([a-f0-9]{2})/ie', "chr(hexdec('\\1'))", $input); |
|---|
| 609 | |
|---|
| 610 | return $input; |
|---|
| 611 | } |
|---|
| 612 | |
|---|
| 613 | /** |
|---|
| 614 | * Checks the input for uuencoded files and returns |
|---|
| 615 | * an array of them. Can be called statically, eg: |
|---|
| 616 | * |
|---|
| 617 | * $files =& Mail_mimeDecode::uudecode($some_text); |
|---|
| 618 | * |
|---|
| 619 | * It will check for the begin 666 ... end syntax |
|---|
| 620 | * however and won't just blindly decode whatever you |
|---|
| 621 | * pass it. |
|---|
| 622 | * |
|---|
| 623 | * @param string Input body to look for attahcments in |
|---|
| 624 | * @return array Decoded bodies, filenames and permissions |
|---|
| 625 | * @access public |
|---|
| 626 | * @author Unknown |
|---|
| 627 | */ |
|---|
| 628 | function &uudecode($input) |
|---|
| 629 | { |
|---|
| 630 | // Find all uuencoded sections |
|---|
| 631 | preg_match_all("/begin ([0-7]{3}) (.+)\r?\n(.+)\r?\nend/Us", $input, $matches); |
|---|
| 632 | |
|---|
| 633 | for ($j = 0; $j < count($matches[3]); $j++) { |
|---|
| 634 | |
|---|
| 635 | $str = $matches[3][$j]; |
|---|
| 636 | $filename = $matches[2][$j]; |
|---|
| 637 | $fileperm = $matches[1][$j]; |
|---|
| 638 | |
|---|
| 639 | $file = ''; |
|---|
| 640 | $str = preg_split("/\r?\n/", trim($str)); |
|---|
| 641 | $strlen = count($str); |
|---|
| 642 | |
|---|
| 643 | for ($i = 0; $i < $strlen; $i++) { |
|---|
| 644 | $pos = 1; |
|---|
| 645 | $d = 0; |
|---|
| 646 | $len=(int)(((ord(substr($str[$i],0,1)) -32) - ' ') & 077); |
|---|
| 647 | |
|---|
| 648 | while (($d + 3 <= $len) AND ($pos + 4 <= strlen($str[$i]))) { |
|---|
| 649 | $c0 = (ord(substr($str[$i],$pos,1)) ^ 0x20); |
|---|
| 650 | $c1 = (ord(substr($str[$i],$pos+1,1)) ^ 0x20); |
|---|
| 651 | $c2 = (ord(substr($str[$i],$pos+2,1)) ^ 0x20); |
|---|
| 652 | $c3 = (ord(substr($str[$i],$pos+3,1)) ^ 0x20); |
|---|
| 653 | $file .= chr(((($c0 - ' ') & 077) << 2) | ((($c1 - ' ') & 077) >> 4)); |
|---|
| 654 | |
|---|
| 655 | $file .= chr(((($c1 - ' ') & 077) << 4) | ((($c2 - ' ') & 077) >> 2)); |
|---|
| 656 | |
|---|
| 657 | $file .= chr(((($c2 - ' ') & 077) << 6) | (($c3 - ' ') & 077)); |
|---|
| 658 | |
|---|
| 659 | $pos += 4; |
|---|
| 660 | $d += 3; |
|---|
| 661 | } |
|---|
| 662 | |
|---|
| 663 | if (($d + 2 <= $len) && ($pos + 3 <= strlen($str[$i]))) { |
|---|
| 664 | $c0 = (ord(substr($str[$i],$pos,1)) ^ 0x20); |
|---|
| 665 | $c1 = (ord(substr($str[$i],$pos+1,1)) ^ 0x20); |
|---|
| 666 | $c2 = (ord(substr($str[$i],$pos+2,1)) ^ 0x20); |
|---|
| 667 | $file .= chr(((($c0 - ' ') & 077) << 2) | ((($c1 - ' ') & 077) >> 4)); |
|---|
| 668 | |
|---|
| 669 | $file .= chr(((($c1 - ' ') & 077) << 4) | ((($c2 - ' ') & 077) >> 2)); |
|---|
| 670 | |
|---|
| 671 | $pos += 3; |
|---|
| 672 | $d += 2; |
|---|
| 673 | } |
|---|
| 674 | |
|---|
| 675 | if (($d + 1 <= $len) && ($pos + 2 <= strlen($str[$i]))) { |
|---|
| 676 | $c0 = (ord(substr($str[$i],$pos,1)) ^ 0x20); |
|---|
| 677 | $c1 = (ord(substr($str[$i],$pos+1,1)) ^ 0x20); |
|---|
| 678 | $file .= chr(((($c0 - ' ') & 077) << 2) | ((($c1 - ' ') & 077) >> 4)); |
|---|
| 679 | |
|---|
| 680 | } |
|---|
| 681 | } |
|---|
| 682 | $files[] = array('filename' => $filename, 'fileperm' => $fileperm, 'filedata' => $file); |
|---|
| 683 | } |
|---|
| 684 | |
|---|
| 685 | return $files; |
|---|
| 686 | } |
|---|
| 687 | |
|---|
| 688 | /** |
|---|
| 689 | * getSendArray() returns the arguments required for Mail::send() |
|---|
| 690 | * used to build the arguments for a mail::send() call |
|---|
| 691 | * |
|---|
| 692 | * Usage: |
|---|
| 693 | * $mailtext = Full email (for example generated by a template) |
|---|
| 694 | * $decoder = new Mail_mimeDecode($mailtext); |
|---|
| 695 | * $parts = $decoder->getSendArray(); |
|---|
| 696 | * if (!PEAR::isError($parts) { |
|---|
| 697 | * list($recipents,$headers,$body) = $parts; |
|---|
| 698 | * $mail = Mail::factory('smtp'); |
|---|
| 699 | * $mail->send($recipents,$headers,$body); |
|---|
| 700 | * } else { |
|---|
| 701 | * echo $parts->message; |
|---|
| 702 | * } |
|---|
| 703 | * @return mixed array of recipeint, headers,body or Pear_Error |
|---|
| 704 | * @access public |
|---|
| 705 | * @author Alan Knowles <alan@akbkhome.com> |
|---|
| 706 | */ |
|---|
| 707 | function getSendArray() |
|---|
| 708 | { |
|---|
| 709 | // prevent warning if this is not set |
|---|
| 710 | $this->_decode_headers = FALSE; |
|---|
| 711 | $headerlist =$this->_parseHeaders($this->_header); |
|---|
| 712 | $to = ""; |
|---|
| 713 | if (!$headerlist) { |
|---|
| 714 | return $this->raiseError("Message did not contain headers"); |
|---|
| 715 | } |
|---|
| 716 | foreach($headerlist as $item) { |
|---|
| 717 | $header[$item['name']] = $item['value']; |
|---|
| 718 | switch (strtolower($item['name'])) { |
|---|
| 719 | case "to": |
|---|
| 720 | case "cc": |
|---|
| 721 | case "bcc": |
|---|
| 722 | $to = ",".$item['value']; |
|---|
| 723 | default: |
|---|
| 724 | break; |
|---|
| 725 | } |
|---|
| 726 | } |
|---|
| 727 | if ($to == "") { |
|---|
| 728 | return $this->raiseError("Message did not contain any recipents"); |
|---|
| 729 | } |
|---|
| 730 | $to = substr($to,1); |
|---|
| 731 | return array($to,$header,$this->_body); |
|---|
| 732 | } |
|---|
| 733 | |
|---|
| 734 | /** |
|---|
| 735 | * Returns a xml copy of the output of |
|---|
| 736 | * Mail_mimeDecode::decode. Pass the output in as the |
|---|
| 737 | * argument. This function can be called statically. Eg: |
|---|
| 738 | * |
|---|
| 739 | * $output = $obj->decode(); |
|---|
| 740 | * $xml = Mail_mimeDecode::getXML($output); |
|---|
| 741 | * |
|---|
| 742 | * The DTD used for this should have been in the package. Or |
|---|
| 743 | * alternatively you can get it from cvs, or here: |
|---|
| 744 | * http://www.phpguru.org/xmail/xmail.dtd. |
|---|
| 745 | * |
|---|
| 746 | * @param object Input to convert to xml. This should be the |
|---|
| 747 | * output of the Mail_mimeDecode::decode function |
|---|
| 748 | * @return string XML version of input |
|---|
| 749 | * @access public |
|---|
| 750 | */ |
|---|
| 751 | function getXML($input) |
|---|
| 752 | { |
|---|
| 753 | $crlf = "\r\n"; |
|---|
| 754 | $output = '<?xml version=\'1.0\'?>' . $crlf . |
|---|
| 755 | '<!DOCTYPE email SYSTEM "http://www.phpguru.org/xmail/xmail.dtd">' . $crlf . |
|---|
| 756 | '<email>' . $crlf . |
|---|
| 757 | Mail_mimeDecode::_getXML($input) . |
|---|
| 758 | '</email>'; |
|---|
| 759 | |
|---|
| 760 | return $output; |
|---|
| 761 | } |
|---|
| 762 | |
|---|
| 763 | /** |
|---|
| 764 | * Function that does the actual conversion to xml. Does a single |
|---|
| 765 | * mimepart at a time. |
|---|
| 766 | * |
|---|
| 767 | * @param object Input to convert to xml. This is a mimepart object. |
|---|
| 768 | * It may or may not contain subparts. |
|---|
| 769 | * @param integer Number of tabs to indent |
|---|
| 770 | * @return string XML version of input |
|---|
| 771 | * @access private |
|---|
| 772 | */ |
|---|
| 773 | function _getXML($input, $indent = 1) |
|---|
| 774 | { |
|---|
| 775 | $htab = "\t"; |
|---|
| 776 | $crlf = "\r\n"; |
|---|
| 777 | $output = ''; |
|---|
| 778 | $headers = @(array)$input->headers; |
|---|
| 779 | |
|---|
| 780 | foreach ($headers as $hdr_name => $hdr_value) { |
|---|
| 781 | |
|---|
| 782 | // Multiple headers with this name |
|---|
| 783 | if (is_array($headers[$hdr_name])) { |
|---|
| 784 | for ($i = 0; $i < count($hdr_value); $i++) { |
|---|
| 785 | $output .= Mail_mimeDecode::_getXML_helper($hdr_name, $hdr_value[$i], $indent); |
|---|
| 786 | } |
|---|
| 787 | |
|---|
| 788 | // Only one header of this sort |
|---|
| 789 | } else { |
|---|
| 790 | $output .= Mail_mimeDecode::_getXML_helper($hdr_name, $hdr_value, $indent); |
|---|
| 791 | } |
|---|
| 792 | } |
|---|
| 793 | |
|---|
| 794 | if (!empty($input->parts)) { |
|---|
| 795 | for ($i = 0; $i < count($input->parts); $i++) { |
|---|
| 796 | $output .= $crlf . str_repeat($htab, $indent) . '<mimepart>' . $crlf . |
|---|
| 797 | Mail_mimeDecode::_getXML($input->parts[$i], $indent+1) . |
|---|
| 798 | str_repeat($htab, $indent) . '</mimepart>' . $crlf; |
|---|
| 799 | } |
|---|
| 800 | } elseif (isset($input->body)) { |
|---|
| 801 | $output .= $crlf . str_repeat($htab, $indent) . '<body><![CDATA[' . |
|---|
| 802 | $input->body . ']]></body>' . $crlf; |
|---|
| 803 | } |
|---|
| 804 | |
|---|
| 805 | return $output; |
|---|
| 806 | } |
|---|
| 807 | |
|---|
| 808 | /** |
|---|
| 809 | * Helper function to _getXML(). Returns xml of a header. |
|---|
| 810 | * |
|---|
| 811 | * @param string Name of header |
|---|
| 812 | * @param string Value of header |
|---|
| 813 | * @param integer Number of tabs to indent |
|---|
| 814 | * @return string XML version of input |
|---|
| 815 | * @access private |
|---|
| 816 | */ |
|---|
| 817 | function _getXML_helper($hdr_name, $hdr_value, $indent) |
|---|
| 818 | { |
|---|
| 819 | $htab = "\t"; |
|---|
| 820 | $crlf = "\r\n"; |
|---|
| 821 | $return = ''; |
|---|
| 822 | |
|---|
| 823 | $new_hdr_value = ($hdr_name != 'received') ? Mail_mimeDecode::_parseHeaderValue($hdr_value) : array('value' => $hdr_value); |
|---|
| 824 | $new_hdr_name = str_replace(' ', '-', ucwords(str_replace('-', ' ', $hdr_name))); |
|---|
| 825 | |
|---|
| 826 | // Sort out any parameters |
|---|
| 827 | if (!empty($new_hdr_value['other'])) { |
|---|
| 828 | foreach ($new_hdr_value['other'] as $paramname => $paramvalue) { |
|---|
| 829 | $params[] = str_repeat($htab, $indent) . $htab . '<parameter>' . $crlf . |
|---|
| 830 | str_repeat($htab, $indent) . $htab . $htab . '<paramname>' . htmlspecialchars($paramname) . '</paramname>' . $crlf . |
|---|
| 831 | str_repeat($htab, $indent) . $htab . $htab . '<paramvalue>' . htmlspecialchars($paramvalue) . '</paramvalue>' . $crlf . |
|---|
| 832 | str_repeat($htab, $indent) . $htab . '</parameter>' . $crlf; |
|---|
| 833 | } |
|---|
| 834 | |
|---|
| 835 | $params = implode('', $params); |
|---|
| 836 | } else { |
|---|
| 837 | $params = ''; |
|---|
| 838 | } |
|---|
| 839 | |
|---|
| 840 | $return = str_repeat($htab, $indent) . '<header>' . $crlf . |
|---|
| 841 | str_repeat($htab, $indent) . $htab . '<headername>' . htmlspecialchars($new_hdr_name) . '</headername>' . $crlf . |
|---|
| 842 | str_repeat($htab, $indent) . $htab . '<headervalue>' . htmlspecialchars($new_hdr_value['value']) . '</headervalue>' . $crlf . |
|---|
| 843 | $params . |
|---|
| 844 | str_repeat($htab, $indent) . '</header>' . $crlf; |
|---|
| 845 | |
|---|
| 846 | return $return; |
|---|
| 847 | } |
|---|
| 848 | |
|---|
| 849 | } // End of class |
|---|