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<?php |
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/** |
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* The Mail_mimePart class is used to create MIME E-mail messages |
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* |
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* This class enables you to manipulate and build a mime email |
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* from the ground up. The Mail_Mime class is a userfriendly api |
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* to this class for people who aren't interested in the internals |
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* of mime mail. |
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* This class however allows full control over the email. |
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* |
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* Compatible with PHP versions 4 and 5 |
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* |
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* LICENSE: This LICENSE is in the BSD license style. |
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* Copyright (c) 2002-2003, Richard Heyes <richard@phpguru.org> |
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* Copyright (c) 2003-2006, PEAR <pear-group@php.net> |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* - Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* - Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* - Neither the name of the authors, nor the names of its contributors |
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* may be used to endorse or promote products derived from this |
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* software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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* THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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* @category Mail |
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* @package Mail_Mime |
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* @author Richard Heyes <richard@phpguru.org> |
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* @author Cipriano Groenendal <cipri@php.net> |
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* @author Sean Coates <sean@php.net> |
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* @copyright 2003-2006 PEAR <pear-group@php.net> |
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License |
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* @version CVS: $Id$ |
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* @link http://pear.php.net/package/Mail_mime |
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*/ |
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/** |
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* The Mail_mimePart class is used to create MIME E-mail messages |
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* |
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* This class enables you to manipulate and build a mime email |
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* from the ground up. The Mail_Mime class is a userfriendly api |
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* to this class for people who aren't interested in the internals |
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* of mime mail. |
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* This class however allows full control over the email. |
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* |
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* @category Mail |
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* @package Mail_Mime |
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* @author Richard Heyes <richard@phpguru.org> |
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* @author Cipriano Groenendal <cipri@php.net> |
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* @author Sean Coates <sean@php.net> |
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* @copyright 2003-2006 PEAR <pear-group@php.net> |
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License |
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* @version Release: @package_version@ |
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* @link http://pear.php.net/package/Mail_mime |
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*/ |
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class Mail_mimePart { |
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/** |
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* The encoding type of this part |
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* |
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* @var string |
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* @access private |
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*/ |
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var $_encoding; |
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/** |
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* An array of subparts |
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* |
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* @var array |
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* @access private |
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*/ |
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var $_subparts; |
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/** |
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* The output of this part after being built |
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* |
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* @var string |
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* @access private |
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*/ |
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var $_encoded; |
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/** |
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* Headers for this part |
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* |
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* @var array |
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* @access private |
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*/ |
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var $_headers; |
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/** |
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* The body of this part (not encoded) |
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* |
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* @var string |
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* @access private |
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*/ |
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var $_body; |
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/** |
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* Constructor. |
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* |
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* Sets up the object. |
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* |
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* @param $body - The body of the mime part if any. |
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* @param $params - An associative array of parameters: |
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* content_type - The content type for this part eg multipart/mixed |
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* encoding - The encoding to use, 7bit, 8bit, base64, or quoted-printable |
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* cid - Content ID to apply |
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* disposition - Content disposition, inline or attachment |
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* dfilename - Optional filename parameter for content disposition |
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* description - Content description |
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* charset - Character set to use |
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* @access public |
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*/ |
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function Mail_mimePart($body = '', $params = array()) |
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{ |
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if (!defined('MAIL_MIMEPART_CRLF')) { |
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define('MAIL_MIMEPART_CRLF', defined('MAIL_MIME_CRLF') ? MAIL_MIME_CRLF : "\r\n", TRUE); |
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} |
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$contentType = array(); |
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$contentDisp = array(); |
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foreach ($params as $key => $value) { |
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switch ($key) { |
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case 'content_type': |
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$contentType['type'] = $value; |
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//$headers['Content-Type'] = $value . (isset($charset) ? '; charset="' . $charset . '"' : ''); |
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break; |
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case 'encoding': |
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$this->_encoding = $value; |
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$headers['Content-Transfer-Encoding'] = $value; |
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break; |
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case 'cid': |
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$headers['Content-ID'] = '<' . $value . '>'; |
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break; |
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case 'disposition': |
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$contentDisp['disp'] = $value; |
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break; |
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case 'dfilename': |
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$contentDisp['filename'] = $value; |
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$contentType['name'] = $value; |
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break; |
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case 'description': |
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$headers['Content-Description'] = $value; |
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break; |
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case 'charset': |
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$contentType['charset'] = $value; |
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$contentDisp['charset'] = $value; |
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break; |
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case 'language': |
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$contentType['language'] = $value; |
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$contentDisp['language'] = $value; |
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break; |
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case 'location': |
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$headers['Content-Location'] = $value; |
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break; |
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} |
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} |
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if (isset($contentType['type'])) { |
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$headers['Content-Type'] = $contentType['type']; |
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if (isset($contentType['charset'])) { |
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$headers['Content-Type'] .= "; charset=\"{$contentType['charset']}\""; |
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} |
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if (isset($contentType['name'])) { |
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$headers['Content-Type'] .= ';' . MAIL_MIMEPART_CRLF; |
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$headers['Content-Type'] .= |
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$this->_buildHeaderParam('name', $contentType['name'], |
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isset($contentType['charset']) ? $contentType['charset'] : 'US-ASCII', |
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isset($contentType['language']) ? $contentType['language'] : NULL, |
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isset($params['name-encoding']) ? $params['name-encoding'] : NULL); |
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} |
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} |
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if (isset($contentDisp['disp'])) { |
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$headers['Content-Disposition'] = $contentDisp['disp']; |
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if (isset($contentDisp['filename'])) { |
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$headers['Content-Disposition'] .= ';' . MAIL_MIMEPART_CRLF; |
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$headers['Content-Disposition'] .= |
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$this->_buildHeaderParam('filename', $contentDisp['filename'], |
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isset($contentDisp['charset']) ? $contentDisp['charset'] : 'US-ASCII', |
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isset($contentDisp['language']) ? $contentDisp['language'] : NULL, |
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isset($params['filename-encoding']) ? $params['filename-encoding'] : NULL); |
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} |
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} |
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// Default content-type |
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if (!isset($headers['Content-Type'])) { |
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$headers['Content-Type'] = 'text/plain'; |
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} |
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//Default encoding |
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if (!isset($this->_encoding)) { |
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$this->_encoding = '7bit'; |
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} |
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// Assign stuff to member variables |
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$this->_encoded = array(); |
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$this->_headers = $headers; |
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$this->_body = $body; |
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} |
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/** |
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* encode() |
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* |
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* Encodes and returns the email. Also stores |
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* it in the encoded member variable |
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* |
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* @return An associative array containing two elements, |
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* body and headers. The headers element is itself |
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* an indexed array. |
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* @access public |
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*/ |
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function encode() |
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{ |
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$encoded =& $this->_encoded; |
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if (count($this->_subparts)) { |
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$boundary = '=_' . md5(rand() . microtime()); |
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$this->_headers['Content-Type'] .= ';' . MAIL_MIMEPART_CRLF . "\t" . 'boundary="' . $boundary . '"'; |
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// Add body parts to $subparts |
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for ($i = 0; $i < count($this->_subparts); $i++) { |
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$headers = array(); |
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$tmp = $this->_subparts[$i]->encode(); |
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foreach ($tmp['headers'] as $key => $value) { |
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$headers[] = $key . ': ' . $value; |
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} |
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$subparts[] = implode(MAIL_MIMEPART_CRLF, $headers) . MAIL_MIMEPART_CRLF . MAIL_MIMEPART_CRLF . $tmp['body'] . MAIL_MIMEPART_CRLF; |
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} |
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$encoded['body'] = '--' . $boundary . MAIL_MIMEPART_CRLF . |
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implode('--' . $boundary . MAIL_MIMEPART_CRLF , $subparts) . |
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'--' . $boundary.'--' . MAIL_MIMEPART_CRLF; |
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} else { |
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$encoded['body'] = $this->_getEncodedData($this->_body, $this->_encoding); |
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} |
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// Add headers to $encoded |
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$encoded['headers'] =& $this->_headers; |
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return $encoded; |
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} |
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/** |
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* &addSubPart() |
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* |
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* Adds a subpart to current mime part and returns |
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* a reference to it |
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* |
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* @param $body The body of the subpart, if any. |
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* @param $params The parameters for the subpart, same |
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* as the $params argument for constructor. |
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* @return A reference to the part you just added. It is |
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* crucial if using multipart/* in your subparts that |
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* you use =& in your script when calling this function, |
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* otherwise you will not be able to add further subparts. |
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* @access public |
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*/ |
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function &addSubPart($body, $params) |
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{ |
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$this->_subparts[] = new Mail_mimePart($body, $params); |
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return $this->_subparts[count($this->_subparts) - 1]; |
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} |
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/** |
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* _getEncodedData() |
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* |
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* Returns encoded data based upon encoding passed to it |
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* |
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* @param $data The data to encode. |
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* @param $encoding The encoding type to use, 7bit, base64, |
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* or quoted-printable. |
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* @access private |
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*/ |
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function _getEncodedData($data, $encoding) |
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{ |
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switch ($encoding) { |
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case '8bit': |
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case '7bit': |
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return $data; |
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break; |
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case 'quoted-printable': |
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return $this->_quotedPrintableEncode($data); |
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break; |
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case 'base64': |
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return rtrim(chunk_split(base64_encode($data), 76, MAIL_MIMEPART_CRLF)); |
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break; |
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default: |
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return $data; |
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} |
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} |
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/** |
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* quotedPrintableEncode() |
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* |
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* Encodes data to quoted-printable standard. |
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* |
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* @param $input The data to encode |
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* @param $line_max Optional max line length. Should |
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* not be more than 76 chars |
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* |
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* @access private |
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*/ |
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function _quotedPrintableEncode($input , $line_max = 76) |
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{ |
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$lines = preg_split("/\r?\n/", $input); |
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$eol = MAIL_MIMEPART_CRLF; |
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$escape = '='; |
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$output = ''; |
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while (list(, $line) = each($lines)) { |
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$line = preg_split('||', $line, -1, PREG_SPLIT_NO_EMPTY); |
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$linlen = count($line); |
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$newline = ''; |
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for ($i = 0; $i < $linlen; $i++) { |
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$char = $line[$i]; |
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$dec = ord($char); |
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if (($dec == 32) AND ($i == ($linlen - 1))) { // convert space at eol only |
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$char = '=20'; |
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} elseif (($dec == 9) AND ($i == ($linlen - 1))) { // convert tab at eol only |
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$char = '=09'; |
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} elseif ($dec == 9) { |
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; // Do nothing if a tab. |
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} elseif (($dec == 61) OR ($dec < 32 ) OR ($dec > 126)) { |
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$char = $escape . strtoupper(sprintf('%02s', dechex($dec))); |
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} elseif (($dec == 46) AND (($newline == '') || ((strlen($newline) + strlen("=2E")) >= $line_max))) { |
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//Bug #9722: convert full-stop at bol, |
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//some Windows servers need this, won't break anything (cipri) |
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//Bug #11731: full-stop at bol also needs to be encoded |
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//if this line would push us over the line_max limit. |
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$char = '=2E'; |
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} |
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//Note, when changing this line, also change the ($dec == 46) |
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//check line, as it mimics this line due to Bug #11731 |
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if ((strlen($newline) + strlen($char)) >= $line_max) { // MAIL_MIMEPART_CRLF is not counted |
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$output .= $newline . $escape . $eol; // soft line break; " =\r\n" is okay |
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$newline = ''; |
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} |
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$newline .= $char; |
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} // end of for |
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$output .= $newline . $eol; |
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} |
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$output = substr($output, 0, -1 * strlen($eol)); // Don't want last crlf |
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return $output; |
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} |
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/** |
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* _buildHeaderParam() |
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* |
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* Encodes the paramater of a header. |
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* |
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* @param $name The name of the header-parameter |
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* @param $value The value of the paramter |
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* @param $charset The characterset of $value |
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* @param $language The language used in $value |
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* @param $paramEnc Parameter encoding type |
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* @param $maxLength The maximum length of a line. Defauls to 78 |
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* |
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* @access private |
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*/ |
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function _buildHeaderParam($name, $value, $charset=NULL, $language=NULL, $paramEnc=NULL, $maxLength=78) |
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{ |
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// RFC 2183/2184/2822: |
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// value needs encoding if contains non-ASCII chars or is longer than 78 chars |
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if (!preg_match('#[^\x20-\x7E]#', $value)) { // ASCII |
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$quoted = addcslashes($value, '\\"'); |
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if (strlen($name) + strlen($quoted) + 6 <= $maxLength) |
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return " {$name}=\"{$quoted}\"; "; |
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} |
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// use quoted-printable/base64 encoding (RFC2047) |
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if ($paramEnc == 'quoted-printable' || $paramEnc == 'base64') |
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return $this->_buildRFC2047Param($name, $value, $charset, $paramEnc); |
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$encValue = preg_replace('#([^\x20-\x7E])#e', '"%" . strtoupper(dechex(ord("\1")))', $value); |
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$value = "$charset'$language'$encValue"; |
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$header = " {$name}*=\"{$value}\"; "; |
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if (strlen($header) <= $maxLength) { |
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return $header; |
|
418 |
} |
|
419 |
|
e8a1b7
|
420 |
$preLength = strlen(" {$name}*0*=\""); |
ee289d
|
421 |
$sufLength = strlen("\";"); |
ffae15
|
422 |
$maxLength = max(16, $maxLength - $preLength - $sufLength - 2); |
ee289d
|
423 |
$maxLengthReg = "|(.{0,$maxLength}[^\%][^\%])|"; |
A |
424 |
|
|
425 |
$headers = array(); |
|
426 |
$headCount = 0; |
|
427 |
while ($value) { |
|
428 |
$matches = array(); |
|
429 |
$found = preg_match($maxLengthReg, $value, $matches); |
|
430 |
if ($found) { |
e8a1b7
|
431 |
$headers[] = " {$name}*{$headCount}*=\"{$matches[0]}\""; |
ee289d
|
432 |
$value = substr($value, strlen($matches[0])); |
A |
433 |
} else { |
e8a1b7
|
434 |
$headers[] = " {$name}*{$headCount}*=\"{$value}\""; |
ee289d
|
435 |
$value = ""; |
A |
436 |
} |
|
437 |
$headCount++; |
|
438 |
} |
0ea8d3
|
439 |
$headers = implode(';' . MAIL_MIMEPART_CRLF, $headers) . ';'; |
ee289d
|
440 |
return $headers; |
A |
441 |
} |
ffae15
|
442 |
|
A |
443 |
/** |
|
444 |
* Encodes header parameter as per RFC2047 if needed (values too long will be truncated) |
|
445 |
* |
|
446 |
* @param string $name The parameter name |
|
447 |
* @param string $value The parameter value |
|
448 |
* @param string $charset The parameter charset |
|
449 |
* @param string $encoding Encoding type (quoted-printable or base64) |
|
450 |
* @param int $maxLength Encoded parameter max length (75 is the value specified in the RFC) |
|
451 |
* |
|
452 |
* @return string Parameter line |
|
453 |
* @access private |
|
454 |
*/ |
|
455 |
function _buildRFC2047Param($name, $value, $charset, $encoding='quoted-printable', $maxLength=75) |
|
456 |
{ |
|
457 |
if (!preg_match('#([^\x20-\x7E]){1}#', $value)) |
|
458 |
{ |
|
459 |
$quoted = addcslashes($value, '\\"'); |
|
460 |
$maxLength = $maxLength - 6; |
|
461 |
if (strlen($quoted) > $maxLength) |
|
462 |
{ |
|
463 |
// truncate filename leaving extension |
|
464 |
$ext = strrchr($quoted, '.'); |
|
465 |
$quoted = substr($quoted, 0, $maxLength - strlen($ext)); |
|
466 |
// remove backslashes from the end of filename |
|
467 |
preg_replace('/[\\\\]+$/', '', $quoted); |
|
468 |
$quoted .= $ext; |
|
469 |
} |
|
470 |
} |
|
471 |
else if ($encoding == 'base64') |
|
472 |
{ |
|
473 |
$ext = strrchr($value, '.'); |
|
474 |
$value = substr($value, 0, strlen($value) - strlen($ext)); |
|
475 |
|
|
476 |
$ext = base64_encode($ext); |
|
477 |
$value = base64_encode($value); |
|
478 |
|
|
479 |
$prefix = '=?' . $charset . '?B?'; |
|
480 |
$suffix = '?='; |
|
481 |
$maxLength = $maxLength - strlen($prefix . $suffix) - strlen($ext) - 2; |
|
482 |
|
|
483 |
//We can cut base64 every 4 characters, so the real max |
|
484 |
//we can get must be rounded down. |
|
485 |
$maxLength = $maxLength - ($maxLength % 4); |
|
486 |
$quoted = $prefix . substr($value, 0, $maxLength) . $ext . $suffix; |
|
487 |
} |
|
488 |
else // quoted-printable |
|
489 |
{ |
|
490 |
$ext = strrchr($value, '.'); |
|
491 |
$value = substr($value, 0, strlen($value) - strlen($ext)); |
|
492 |
|
|
493 |
// Replace all special characters used by the encoder. |
|
494 |
$search = array('=', '_', '?', ' '); |
|
495 |
$replace = array('=3D', '=5F', '=3F', '_'); |
|
496 |
$ext = str_replace($search, $replace, $ext); |
|
497 |
$value = str_replace($search, $replace, $value); |
|
498 |
|
|
499 |
// Replace all extended characters (\x80-xFF) with their |
|
500 |
// ASCII values. |
|
501 |
$ext = preg_replace('/([\x80-\xFF])/e', |
|
502 |
'"=" . strtoupper(dechex(ord("\1")))', $ext); |
|
503 |
$value = preg_replace('/([\x80-\xFF])/e', |
|
504 |
'"=" . strtoupper(dechex(ord("\1")))', $value); |
|
505 |
|
|
506 |
$prefix = '=?' . $charset . '?Q?'; |
|
507 |
$suffix = '?='; |
|
508 |
|
|
509 |
$maxLength = $maxLength - strlen($prefix . $suffix) - strlen($ext) - 2; |
|
510 |
|
|
511 |
// Truncate QP-encoded text at $maxLength |
|
512 |
// but not break any encoded letters. |
|
513 |
if(preg_match("/^(.{0,$maxLength}[^\=][^\=])/", $value, $matches)) |
|
514 |
$value = $matches[1]; |
|
515 |
|
|
516 |
$quoted = $prefix . $value . $ext . $suffix; |
|
517 |
} |
|
518 |
|
|
519 |
return " {$name}=\"{$quoted}\"; "; |
|
520 |
} |
|
521 |
|
4e17e6
|
522 |
} // End of class |