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<?php/*** The Mail_Mime class is used to create MIME E-mail messages** The Mail_Mime class provides an OO interface to create MIME* enabled email messages. This way you can create emails that* contain plain-text bodies, HTML bodies, attachments, inline* images and specific headers.** Compatible with PHP versions 4 and 5** LICENSE: This LICENSE is in the BSD license style.* Copyright (c) 2002-2003, Richard Heyes <richard@phpguru.org>* Copyright (c) 2003-2006, PEAR <pear-group@php.net>* All rights reserved.** Redistribution and use in source and binary forms, with or* without modification, are permitted provided that the following* conditions are met:** - Redistributions of source code must retain the above copyright* notice, this list of conditions and the following disclaimer.* - Redistributions in binary form must reproduce the above copyright* notice, this list of conditions and the following disclaimer in the* documentation and/or other materials provided with the distribution.* - Neither the name of the authors, nor the names of its contributors* may be used to endorse or promote products derived from this* software without specific prior written permission.** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF* THE POSSIBILITY OF SUCH DAMAGE.** @category Mail* @package Mail_Mime* @author Richard Heyes <richard@phpguru.org>* @author Tomas V.V. Cox <cox@idecnet.com>* @author Cipriano Groenendal <cipri@php.net>* @author Sean Coates <sean@php.net>* @author Aleksander Machniak <alec@php.net>* @copyright 2003-2006 PEAR <pear-group@php.net>* @license http://www.opensource.org/licenses/bsd-license.php BSD License* @version CVS: $Id: mime.php 305690 2010-11-23 12:41:00Z alec $* @link http://pear.php.net/package/Mail_mime** This class is based on HTML Mime Mail class from* Richard Heyes <richard@phpguru.org> which was based also* in the mime_mail.class by Tobias Ratschiller <tobias@dnet.it>* and Sascha Schumann <sascha@schumann.cx>*//*** require PEAR** This package depends on PEAR to raise errors.*/require_once 'PEAR.php';/*** require Mail_mimePart** Mail_mimePart contains the code required to* create all the different parts a mail can* consist of.*/require_once 'Mail/mimePart.php';/*** The Mail_Mime class provides an OO interface to create MIME* enabled email messages. This way you can create emails that* contain plain-text bodies, HTML bodies, attachments, inline* images and specific headers.** @category Mail* @package Mail_Mime* @author Richard Heyes <richard@phpguru.org>* @author Tomas V.V. Cox <cox@idecnet.com>* @author Cipriano Groenendal <cipri@php.net>* @author Sean Coates <sean@php.net>* @copyright 2003-2006 PEAR <pear-group@php.net>* @license http://www.opensource.org/licenses/bsd-license.php BSD License* @version Release: @package_version@* @link http://pear.php.net/package/Mail_mime*/class Mail_mime{/*** Contains the plain text part of the email** @var string* @access private*/var $_txtbody;/*** Contains the html part of the email** @var string* @access private*/var $_htmlbody;/*** list of the attached images** @var array* @access private*/var $_html_images = array();/*** list of the attachements** @var array* @access private*/var $_parts = array();/*** Headers for the mail** @var array* @access private*/var $_headers = array();/*** Build parameters** @var array* @access private*/var $_build_params = array(// What encoding to use for the headers// Options: quoted-printable or base64'head_encoding' => 'quoted-printable',// What encoding to use for plain text// Options: 7bit, 8bit, base64, or quoted-printable'text_encoding' => 'quoted-printable',// What encoding to use for html// Options: 7bit, 8bit, base64, or quoted-printable'html_encoding' => 'quoted-printable',// The character set to use for html'html_charset' => 'ISO-8859-1',// The character set to use for text'text_charset' => 'ISO-8859-1',// The character set to use for headers'head_charset' => 'ISO-8859-1',// End-of-line sequence'eol' => "\r\n",// Delay attachment files IO until building the message'delay_file_io' => false);/*** Constructor function** @param mixed $params Build parameters that change the way the email* is built. Should be an associative array.* See $_build_params.** @return void* @access public*/function Mail_mime($params = array()){// Backward-compatible EOL settingif (is_string($params)) {$this->_build_params['eol'] = $params;} else if (defined('MAIL_MIME_CRLF') && !isset($params['eol'])) {$this->_build_params['eol'] = MAIL_MIME_CRLF;}// Update build parametersif (!empty($params) && is_array($params)) {while (list($key, $value) = each($params)) {$this->_build_params[$key] = $value;}}}/*** Set build parameter value** @param string $name Parameter name* @param string $value Parameter value** @return void* @access public* @since 1.6.0*/function setParam($name, $value){$this->_build_params[$name] = $value;}/*** Get build parameter value** @param string $name Parameter name** @return mixed Parameter value* @access public* @since 1.6.0*/function getParam($name){return isset($this->_build_params[$name]) ? $this->_build_params[$name] : null;}/*** Accessor function to set the body text. Body text is used if* it's not an html mail being sent or else is used to fill the* text/plain part that emails clients who don't support* html should show.** @param string $data Either a string or* the file name with the contents* @param bool $isfile If true the first param should be treated* as a file name, else as a string (default)* @param bool $append If true the text or file is appended to* the existing body, else the old body is* overwritten** @return mixed True on success or PEAR_Error object* @access public*/function setTXTBody($data, $isfile = false, $append = false){if (!$isfile) {if (!$append) {$this->_txtbody = $data;} else {$this->_txtbody .= $data;}} else {$cont = $this->_file2str($data);if (PEAR::isError($cont)) {return $cont;}if (!$append) {$this->_txtbody = $cont;} else {$this->_txtbody .= $cont;}}return true;}/*** Get message text body** @return string Text body* @access public* @since 1.6.0*/function getTXTBody(){return $this->_txtbody;}/*** Adds a html part to the mail.** @param string $data Either a string or the file name with the* contents* @param bool $isfile A flag that determines whether $data is a* filename, or a string(false, default)** @return bool True on success* @access public*/function setHTMLBody($data, $isfile = false){if (!$isfile) {$this->_htmlbody = $data;} else {$cont = $this->_file2str($data);if (PEAR::isError($cont)) {return $cont;}$this->_htmlbody = $cont;}return true;}/*** Get message HTML body** @return string HTML body* @access public* @since 1.6.0*/function getHTMLBody(){return $this->_htmlbody;}/*** Adds an image to the list of embedded images.** @param string $file The image file name OR image data itself* @param string $c_type The content type* @param string $name The filename of the image.* Only used if $file is the image data.* @param bool $isfile Whether $file is a filename or not.* Defaults to true* @param string $content_id Desired Content-ID of MIME part* Defaults to generated unique ID** @return bool True on success* @access public*/function addHTMLImage($file,$c_type='application/octet-stream',$name = '',$isfile = true,$content_id = null) {$bodyfile = null;if ($isfile) {// Don't load file into memoryif ($this->_build_params['delay_file_io']) {$filedata = null;$bodyfile = $file;} else {if (PEAR::isError($filedata = $this->_file2str($file))) {return $filedata;}}$filename = ($name ? $name : $file);} else {$filedata = $file;$filename = $name;}if (!$content_id) {$content_id = md5(uniqid(time()));}$this->_html_images[] = array('body' => $filedata,'body_file' => $bodyfile,'name' => $filename,'c_type' => $c_type,'cid' => $content_id);return true;}/*** Adds a file to the list of attachments.** @param string $file The file name of the file to attach* or the file contents itself* @param string $c_type The content type* @param string $name The filename of the attachment* Only use if $file is the contents* @param bool $isfile Whether $file is a filename or not. Defaults to true* @param string $encoding The type of encoding to use. Defaults to base64.* Possible values: 7bit, 8bit, base64 or quoted-printable.* @param string $disposition The content-disposition of this file* Defaults to attachment.* Possible values: attachment, inline.* @param string $charset The character set of attachment's content.* @param string $language The language of the attachment* @param string $location The RFC 2557.4 location of the attachment* @param string $n_encoding Encoding of the attachment's name in Content-Type* By default filenames are encoded using RFC2231 method* Here you can set RFC2047 encoding (quoted-printable* or base64) instead* @param string $f_encoding Encoding of the attachment's filename* in Content-Disposition header.* @param string $description Content-Description header* @param string $h_charset The character set of the headers e.g. filename* If not specified, $charset will be used** @return mixed True on success or PEAR_Error object* @access public*/function addAttachment($file,$c_type = 'application/octet-stream',$name = '',$isfile = true,$encoding = 'base64',$disposition = 'attachment',$charset = '',$language = '',$location = '',$n_encoding = null,$f_encoding = null,$description = '',$h_charset = null) {$bodyfile = null;if ($isfile) {// Don't load file into memoryif ($this->_build_params['delay_file_io']) {$filedata = null;$bodyfile = $file;} else {if (PEAR::isError($filedata = $this->_file2str($file))) {return $filedata;}}// Force the name the user supplied, otherwise use $file$filename = ($name ? $name : $file);} else {$filedata = $file;$filename = $name;}if (!strlen($filename)) {$msg = "The supplied filename for the attachment can't be empty";$err = PEAR::raiseError($msg);return $err;}$filename = $this->_basename($filename);$this->_parts[] = array('body' => $filedata,'body_file' => $bodyfile,'name' => $filename,'c_type' => $c_type,'charset' => $charset,'encoding' => $encoding,'language' => $language,'location' => $location,'disposition' => $disposition,'description' => $description,'name_encoding' => $n_encoding,'filename_encoding' => $f_encoding,'headers_charset' => $h_charset,);return true;}/*** Get the contents of the given file name as string** @param string $file_name Path of file to process** @return string Contents of $file_name* @access private*/function &_file2str($file_name){// Check state of file and raise an error properlyif (!file_exists($file_name)) {$err = PEAR::raiseError('File not found: ' . $file_name);return $err;}if (!is_file($file_name)) {$err = PEAR::raiseError('Not a regular file: ' . $file_name);return $err;}if (!is_readable($file_name)) {$err = PEAR::raiseError('File is not readable: ' . $file_name);return $err;}// Temporarily reset magic_quotes_runtime and read file contentsif ($magic_quote_setting = get_magic_quotes_runtime()) {@ini_set('magic_quotes_runtime', 0);}$cont = file_get_contents($file_name);if ($magic_quote_setting) {@ini_set('magic_quotes_runtime', $magic_quote_setting);}return $cont;}/*** Adds a text subpart to the mimePart object and* returns it during the build process.** @param mixed &$obj The object to add the part to, or* null if a new object is to be created.* @param string $text The text to add.** @return object The text mimePart object* @access private*/function &_addTextPart(&$obj, $text){$params['content_type'] = 'text/plain';$params['encoding'] = $this->_build_params['text_encoding'];$params['charset'] = $this->_build_params['text_charset'];$params['eol'] = $this->_build_params['eol'];if (is_object($obj)) {$ret = $obj->addSubpart($text, $params);return $ret;} else {$ret = new Mail_mimePart($text, $params);return $ret;}}/*** Adds a html subpart to the mimePart object and* returns it during the build process.** @param mixed &$obj The object to add the part to, or* null if a new object is to be created.** @return object The html mimePart object* @access private*/function &_addHtmlPart(&$obj){$params['content_type'] = 'text/html';$params['encoding'] = $this->_build_params['html_encoding'];$params['charset'] = $this->_build_params['html_charset'];$params['eol'] = $this->_build_params['eol'];if (is_object($obj)) {$ret = $obj->addSubpart($this->_htmlbody, $params);return $ret;} else {$ret = new Mail_mimePart($this->_htmlbody, $params);return $ret;}}/*** Creates a new mimePart object, using multipart/mixed as* the initial content-type and returns it during the* build process.** @return object The multipart/mixed mimePart object* @access private*/function &_addMixedPart(){$params = array();$params['content_type'] = 'multipart/mixed';$params['eol'] = $this->_build_params['eol'];// Create empty multipart/mixed Mail_mimePart object to return$ret = new Mail_mimePart('', $params);return $ret;}/*** Adds a multipart/alternative part to a mimePart* object (or creates one), and returns it during* the build process.** @param mixed &$obj The object to add the part to, or* null if a new object is to be created.** @return object The multipart/mixed mimePart object* @access private*/function &_addAlternativePart(&$obj){$params['content_type'] = 'multipart/alternative';$params['eol'] = $this->_build_params['eol'];if (is_object($obj)) {return $obj->addSubpart('', $params);} else {$ret = new Mail_mimePart('', $params);return $ret;}}/*** Adds a multipart/related part to a mimePart* object (or creates one), and returns it during* the build process.** @param mixed &$obj The object to add the part to, or* null if a new object is to be created** @return object The multipart/mixed mimePart object* @access private*/function &_addRelatedPart(&$obj){$params['content_type'] = 'multipart/related';$params['eol'] = $this->_build_params['eol'];if (is_object($obj)) {return $obj->addSubpart('', $params);} else {$ret = new Mail_mimePart('', $params);return $ret;}}/*** Adds an html image subpart to a mimePart object* and returns it during the build process.** @param object &$obj The mimePart to add the image to* @param array $value The image information** @return object The image mimePart object* @access private*/function &_addHtmlImagePart(&$obj, $value){$params['content_type'] = $value['c_type'];$params['encoding'] = 'base64';$params['disposition'] = 'inline';$params['filename'] = $value['name'];$params['cid'] = $value['cid'];$params['body_file'] = $value['body_file'];$params['eol'] = $this->_build_params['eol'];if (!empty($value['name_encoding'])) {$params['name_encoding'] = $value['name_encoding'];}if (!empty($value['filename_encoding'])) {$params['filename_encoding'] = $value['filename_encoding'];}$ret = $obj->addSubpart($value['body'], $params);return $ret;}/*** Adds an attachment subpart to a mimePart object* and returns it during the build process.** @param object &$obj The mimePart to add the image to* @param array $value The attachment information** @return object The image mimePart object* @access private*/function &_addAttachmentPart(&$obj, $value){$params['eol'] = $this->_build_params['eol'];$params['filename'] = $value['name'];$params['encoding'] = $value['encoding'];$params['content_type'] = $value['c_type'];$params['body_file'] = $value['body_file'];$params['disposition'] = isset($value['disposition']) ?$value['disposition'] : 'attachment';// content charsetif (!empty($value['charset'])) {$params['charset'] = $value['charset'];}// headers charset (filename, description)if (!empty($value['headers_charset'])) {$params['headers_charset'] = $value['headers_charset'];}if (!empty($value['language'])) {$params['language'] = $value['language'];}if (!empty($value['location'])) {$params['location'] = $value['location'];}if (!empty($value['name_encoding'])) {$params['name_encoding'] = $value['name_encoding'];}if (!empty($value['filename_encoding'])) {$params['filename_encoding'] = $value['filename_encoding'];}if (!empty($value['description'])) {$params['description'] = $value['description'];}$ret = $obj->addSubpart($value['body'], $params);return $ret;}/*** Returns the complete e-mail, ready to send using an alternative* mail delivery method. Note that only the mailpart that is made* with Mail_Mime is created. This means that,* YOU WILL HAVE NO TO: HEADERS UNLESS YOU SET IT YOURSELF* using the $headers parameter!** @param string $separation The separation between these two parts.* @param array $params The Build parameters passed to the* &get() function. See &get for more info.* @param array $headers The extra headers that should be passed* to the &headers() function.* See that function for more info.* @param bool $overwrite Overwrite the existing headers with new.** @return mixed The complete e-mail or PEAR error object* @access public*/function getMessage($separation = null, $params = null, $headers = null,$overwrite = false) {if ($separation === null) {$separation = $this->_build_params['eol'];}$body = $this->get($params);if (PEAR::isError($body)) {return $body;}$head = $this->txtHeaders($headers, $overwrite);$mail = $head . $separation . $body;return $mail;}/*** Returns the complete e-mail body, ready to send using an alternative* mail delivery method.** @param array $params The Build parameters passed to the* &get() function. See &get for more info.** @return mixed The e-mail body or PEAR error object* @access public* @since 1.6.0*/function getMessageBody($params = null){return $this->get($params, null, true);}/*** Writes (appends) the complete e-mail into file.** @param string $filename Output file location* @param array $params The Build parameters passed to the* &get() function. See &get for more info.* @param array $headers The extra headers that should be passed* to the &headers() function.* See that function for more info.* @param bool $overwrite Overwrite the existing headers with new.** @return mixed True or PEAR error object* @access public* @since 1.6.0*/function saveMessage($filename, $params = null, $headers = null, $overwrite = false){// Check state of file and raise an error properlyif (file_exists($filename) && !is_writable($filename)) {$err = PEAR::raiseError('File is not writable: ' . $filename);return $err;}// Temporarily reset magic_quotes_runtime and read file contentsif ($magic_quote_setting = get_magic_quotes_runtime()) {@ini_set('magic_quotes_runtime', 0);}if (!($fh = fopen($filename, 'ab'))) {$err = PEAR::raiseError('Unable to open file: ' . $filename);return $err;}// Write message headers into file (skipping Content-* headers)$head = $this->txtHeaders($headers, $overwrite, true);if (fwrite($fh, $head) === false) {$err = PEAR::raiseError('Error writing to file: ' . $filename);return $err;}fclose($fh);if ($magic_quote_setting) {@ini_set('magic_quotes_runtime', $magic_quote_setting);}// Write the rest of the message into file$res = $this->get($params, $filename);return $res ? $res : true;}/*** Writes (appends) the complete e-mail body into file.** @param string $filename Output file location* @param array $params The Build parameters passed to the* &get() function. See &get for more info.** @return mixed True or PEAR error object* @access public* @since 1.6.0*/function saveMessageBody($filename, $params = null){// Check state of file and raise an error properlyif (file_exists($filename) && !is_writable($filename)) {$err = PEAR::raiseError('File is not writable: ' . $filename);return $err;}// Temporarily reset magic_quotes_runtime and read file contentsif ($magic_quote_setting = get_magic_quotes_runtime()) {@ini_set('magic_quotes_runtime', 0);}if (!($fh = fopen($filename, 'ab'))) {$err = PEAR::raiseError('Unable to open file: ' . $filename);return $err;}// Write the rest of the message into file$res = $this->get($params, $filename, true);return $res ? $res : true;}/*** Builds the multipart message from the list ($this->_parts) and* returns the mime content.** @param array $params Build parameters that change the way the email* is built. Should be associative. See $_build_params.* @param resource $filename Output file where to save the message instead of* returning it* @param boolean $skip_head True if you want to return/save only the message* without headers** @return mixed The MIME message content string, null or PEAR error object* @access public*/function &get($params = null, $filename = null, $skip_head = false){if (isset($params)) {while (list($key, $value) = each($params)) {$this->_build_params[$key] = $value;}}if (isset($this->_headers['From'])) {// Bug #11381: Illegal characters in domain IDif (preg_match('#(@[0-9a-zA-Z\-\.]+)#', $this->_headers['From'], $matches)) {$domainID = $matches[1];} else {$domainID = '@localhost';}foreach ($this->_html_images as $i => $img) {$cid = $this->_html_images[$i]['cid'];if (!preg_match('#'.preg_quote($domainID).'$#', $cid)) {$this->_html_images[$i]['cid'] = $cid . $domainID;}}}if (count($this->_html_images) && isset($this->_htmlbody)) {foreach ($this->_html_images as $key => $value) {$regex = array();$regex[] = '#(\s)((?i)src|background|href(?-i))\s*=\s*(["\']?)' .preg_quote($value['name'], '#') . '\3#';$regex[] = '#(?i)url(?-i)\(\s*(["\']?)' .preg_quote($value['name'], '#') . '\1\s*\)#';$rep = array();$rep[] = '\1\2=\3cid:' . $value['cid'] .'\3';$rep[] = 'url(\1cid:' . $value['cid'] . '\1)';$this->_htmlbody = preg_replace($regex, $rep, $this->_htmlbody);$this->_html_images[$key]['name']= $this->_basename($this->_html_images[$key]['name']);}}$this->_checkParams();$null = null;$attachments = count($this->_parts) ? true : false;$html_images = count($this->_html_images) ? true : false;$html = strlen($this->_htmlbody) ? true : false;$text = (!$html && strlen($this->_txtbody)) ? true : false;switch (true) {case $text && !$attachments:$message =& $this->_addTextPart($null, $this->_txtbody);break;case !$text && !$html && $attachments:$message =& $this->_addMixedPart();for ($i = 0; $i < count($this->_parts); $i++) {$this->_addAttachmentPart($message, $this->_parts[$i]);}break;case $text && $attachments:$message =& $this->_addMixedPart();$this->_addTextPart($message, $this->_txtbody);for ($i = 0; $i < count($this->_parts); $i++) {$this->_addAttachmentPart($message, $this->_parts[$i]);}break;case $html && !$attachments && !$html_images:if (isset($this->_txtbody)) {$message =& $this->_addAlternativePart($null);$this->_addTextPart($message, $this->_txtbody);$this->_addHtmlPart($message);} else {$message =& $this->_addHtmlPart($null);}break;case $html && !$attachments && $html_images:// * Content-Type: multipart/alternative;// * text// * Content-Type: multipart/related;// * html// * image...if (isset($this->_txtbody)) {$message =& $this->_addAlternativePart($null);$this->_addTextPart($message, $this->_txtbody);$ht =& $this->_addRelatedPart($message);$this->_addHtmlPart($ht);for ($i = 0; $i < count($this->_html_images); $i++) {$this->_addHtmlImagePart($ht, $this->_html_images[$i]);}} else {// * Content-Type: multipart/related;// * html// * image...$message =& $this->_addRelatedPart($null);$this->_addHtmlPart($message);for ($i = 0; $i < count($this->_html_images); $i++) {$this->_addHtmlImagePart($message, $this->_html_images[$i]);}}/*// #13444, #9725: the code below was a non-RFC compliant hack// * Content-Type: multipart/related;// * Content-Type: multipart/alternative;// * text// * html// * image...$message =& $this->_addRelatedPart($null);if (isset($this->_txtbody)) {$alt =& $this->_addAlternativePart($message);$this->_addTextPart($alt, $this->_txtbody);$this->_addHtmlPart($alt);} else {$this->_addHtmlPart($message);}for ($i = 0; $i < count($this->_html_images); $i++) {$this->_addHtmlImagePart($message, $this->_html_images[$i]);}*/break;case $html && $attachments && !$html_images:$message =& $this->_addMixedPart();if (isset($this->_txtbody)) {$alt =& $this->_addAlternativePart($message);$this->_addTextPart($alt, $this->_txtbody);$this->_addHtmlPart($alt);} else {$this->_addHtmlPart($message);}for ($i = 0; $i < count($this->_parts); $i++) {$this->_addAttachmentPart($message, $this->_parts[$i]);}break;case $html && $attachments && $html_images:$message =& $this->_addMixedPart();if (isset($this->_txtbody)) {$alt =& $this->_addAlternativePart($message);$this->_addTextPart($alt, $this->_txtbody);$rel =& $this->_addRelatedPart($alt);} else {$rel =& $this->_addRelatedPart($message);}$this->_addHtmlPart($rel);for ($i = 0; $i < count($this->_html_images); $i++) {$this->_addHtmlImagePart($rel, $this->_html_images[$i]);}for ($i = 0; $i < count($this->_parts); $i++) {$this->_addAttachmentPart($message, $this->_parts[$i]);}break;}if (!isset($message)) {$ret = null;return $ret;}// Use saved boundaryif (!empty($this->_build_params['boundary'])) {$boundary = $this->_build_params['boundary'];} else {$boundary = null;}// Write output to fileif ($filename) {// Append mimePart message headers and body into file$headers = $message->encodeToFile($filename, $boundary, $skip_head);if (PEAR::isError($headers)) {return $headers;}$this->_headers = array_merge($this->_headers, $headers);$ret = null;return $ret;} else {$output = $message->encode($boundary, $skip_head);if (PEAR::isError($output)) {return $output;}$this->_headers = array_merge($this->_headers, $output['headers']);$body = $output['body'];return $body;}}/*** Returns an array with the headers needed to prepend to the email* (MIME-Version and Content-Type). Format of argument is:* $array['header-name'] = 'header-value';** @param array $xtra_headers Assoc array with any extra headers (optional)* (Don't set Content-Type for multipart messages here!)* @param bool $overwrite Overwrite already existing headers.* @param bool $skip_content Don't return content headers: Content-Type,* Content-Disposition and Content-Transfer-Encoding** @return array Assoc array with the mime headers* @access public*/function &headers($xtra_headers = null, $overwrite = false, $skip_content = false){// Add mime version header$headers['MIME-Version'] = '1.0';// Content-Type and Content-Transfer-Encoding headers should already// be present if get() was called, but we'll re-set them to make sure// we got them when called before get() or something in the message// has been changed after get() [#14780]if (!$skip_content) {$headers += $this->_contentHeaders();}if (!empty($xtra_headers)) {$headers = array_merge($headers, $xtra_headers);}if ($overwrite) {$this->_headers = array_merge($this->_headers, $headers);} else {$this->_headers = array_merge($headers, $this->_headers);}$headers = $this->_headers;if ($skip_content) {unset($headers['Content-Type']);unset($headers['Content-Transfer-Encoding']);unset($headers['Content-Disposition']);} else if (!empty($this->_build_params['ctype'])) {$headers['Content-Type'] = $this->_build_params['ctype'];}$encodedHeaders = $this->_encodeHeaders($headers);return $encodedHeaders;}/*** Get the text version of the headers* (usefull if you want to use the PHP mail() function)** @param array $xtra_headers Assoc array with any extra headers (optional)* (Don't set Content-Type for multipart messages here!)* @param bool $overwrite Overwrite the existing headers with new.* @param bool $skip_content Don't return content headers: Content-Type,* Content-Disposition and Content-Transfer-Encoding** @return string Plain text headers* @access public*/function txtHeaders($xtra_headers = null, $overwrite = false, $skip_content = false){$headers = $this->headers($xtra_headers, $overwrite, $skip_content);// Place Received: headers at the beginning of the message// Spam detectors often flag messages with it after the Subject: as spamif (isset($headers['Received'])) {$received = $headers['Received'];unset($headers['Received']);$headers = array('Received' => $received) + $headers;}$ret = '';$eol = $this->_build_params['eol'];foreach ($headers as $key => $val) {if (is_array($val)) {foreach ($val as $value) {$ret .= "$key: $value" . $eol;}} else {$ret .= "$key: $val" . $eol;}}return $ret;}/*** Sets message Content-Type header.* Use it to build messages with various content-types e.g. miltipart/raport* not supported by _contentHeaders() function.** @param string $type Type name* @param array $params Hash array of header parameters** @return void* @access public* @since 1.7.0*/function setContentType($type, $params = array()){$header = $type;$eol = !empty($this->_build_params['eol'])? $this->_build_params['eol'] : "\r\n";// add parameters$token_regexp = '#([^\x21,\x23-\x27,\x2A,\x2B,\x2D'. ',\x2E,\x30-\x39,\x41-\x5A,\x5E-\x7E])#';if (is_array($params)) {foreach ($params as $name => $value) {if ($name == 'boundary') {$this->_build_params['boundary'] = $value;}if (!preg_match($token_regexp, $value)) {$header .= ";$eol $name=$value";} else {$value = addcslashes($value, '\\"');$header .= ";$eol $name=\"$value\"";}}}// add required boundary parameter if not definedif (preg_match('/^multipart\//i', $type)) {if (empty($this->_build_params['boundary'])) {$this->_build_params['boundary'] = '=_' . md5(rand() . microtime());}$header .= ";$eol boundary=\"".$this->_build_params['boundary']."\"";}$this->_build_params['ctype'] = $header;}/*** Sets the Subject header** @param string $subject String to set the subject to.** @return void* @access public*/function setSubject($subject){$this->_headers['Subject'] = $subject;}/*** Set an email to the From (the sender) header** @param string $email The email address to use** @return void* @access public*/function setFrom($email){$this->_headers['From'] = $email;}/*** Add an email to the To header* (multiple calls to this method are allowed)** @param string $email The email direction to add** @return void* @access public*/function addTo($email){if (isset($this->_headers['To'])) {$this->_headers['To'] .= ", $email";} else {$this->_headers['To'] = $email;}}/*** Add an email to the Cc (carbon copy) header* (multiple calls to this method are allowed)** @param string $email The email direction to add** @return void* @access public*/function addCc($email){if (isset($this->_headers['Cc'])) {$this->_headers['Cc'] .= ", $email";} else {$this->_headers['Cc'] = $email;}}/*** Add an email to the Bcc (blank carbon copy) header* (multiple calls to this method are allowed)** @param string $email The email direction to add** @return void* @access public*/function addBcc($email){if (isset($this->_headers['Bcc'])) {$this->_headers['Bcc'] .= ", $email";} else {$this->_headers['Bcc'] = $email;}}/*** Since the PHP send function requires you to specify* recipients (To: header) separately from the other* headers, the To: header is not properly encoded.* To fix this, you can use this public method to* encode your recipients before sending to the send* function** @param string $recipients A comma-delimited list of recipients** @return string Encoded data* @access public*/function encodeRecipients($recipients){$input = array("To" => $recipients);$retval = $this->_encodeHeaders($input);return $retval["To"] ;}/*** Encodes headers as per RFC2047** @param array $input The header data to encode* @param array $params Extra build parameters** @return array Encoded data* @access private*/function _encodeHeaders($input, $params = array()){$build_params = $this->_build_params;while (list($key, $value) = each($params)) {$build_params[$key] = $value;}foreach ($input as $hdr_name => $hdr_value) {if (is_array($hdr_value)) {foreach ($hdr_value as $idx => $value) {$input[$hdr_name][$idx] = $this->encodeHeader($hdr_name, $value,$build_params['head_charset'], $build_params['head_encoding']);}} else {$input[$hdr_name] = $this->encodeHeader($hdr_name, $hdr_value,$build_params['head_charset'], $build_params['head_encoding']);}}return $input;}/*** Encodes a header as per RFC2047** @param string $name The header name* @param string $value The header data to encode* @param string $charset Character set name* @param string $encoding Encoding name (base64 or quoted-printable)** @return string Encoded header data (without a name)* @access public* @since 1.5.3*/function encodeHeader($name, $value, $charset, $encoding){return Mail_mimePart::encodeHeader($name, $value, $charset, $encoding, $this->_build_params['eol']);}/*** Get file's basename (locale independent)** @param string $filename Filename** @return string Basename* @access private*/function _basename($filename){// basename() is not unicode safe and locale dependentif (stristr(PHP_OS, 'win') || stristr(PHP_OS, 'netware')) {return preg_replace('/^.*[\\\\\\/]/', '', $filename);} else {return preg_replace('/^.*[\/]/', '', $filename);}}/*** Get Content-Type and Content-Transfer-Encoding headers of the message** @return array Headers array* @access private*/function _contentHeaders(){$attachments = count($this->_parts) ? true : false;$html_images = count($this->_html_images) ? true : false;$html = strlen($this->_htmlbody) ? true : false;$text = (!$html && strlen($this->_txtbody)) ? true : false;$headers = array();// See get()switch (true) {case $text && !$attachments:$headers['Content-Type'] = 'text/plain';break;case !$text && !$html && $attachments:case $text && $attachments:case $html && $attachments && !$html_images:case $html && $attachments && $html_images:$headers['Content-Type'] = 'multipart/mixed';break;case $html && !$attachments && !$html_images && isset($this->_txtbody):case $html && !$attachments && $html_images && isset($this->_txtbody):$headers['Content-Type'] = 'multipart/alternative';break;case $html && !$attachments && !$html_images && !isset($this->_txtbody):$headers['Content-Type'] = 'text/html';break;case $html && !$attachments && $html_images && !isset($this->_txtbody):$headers['Content-Type'] = 'multipart/related';break;default:return $headers;}$this->_checkParams();$eol = !empty($this->_build_params['eol'])? $this->_build_params['eol'] : "\r\n";if ($headers['Content-Type'] == 'text/plain') {// single-part message: add charset and encoding$charset = 'charset=' . $this->_build_params['text_charset'];// place charset parameter in the same line, if possible// 26 = strlen("Content-Type: text/plain; ")$headers['Content-Type'].= (strlen($charset) + 26 <= 76) ? "; $charset" : ";$eol $charset";$headers['Content-Transfer-Encoding']= $this->_build_params['text_encoding'];} else if ($headers['Content-Type'] == 'text/html') {// single-part message: add charset and encoding$charset = 'charset=' . $this->_build_params['html_charset'];// place charset parameter in the same line, if possible$headers['Content-Type'].= (strlen($charset) + 25 <= 76) ? "; $charset" : ";$eol $charset";$headers['Content-Transfer-Encoding']= $this->_build_params['html_encoding'];} else {// multipart message: and boundaryif (!empty($this->_build_params['boundary'])) {$boundary = $this->_build_params['boundary'];} else if (!empty($this->_headers['Content-Type'])&& preg_match('/boundary="([^"]+)"/', $this->_headers['Content-Type'], $m)) {$boundary = $m[1];} else {$boundary = '=_' . md5(rand() . microtime());}$this->_build_params['boundary'] = $boundary;$headers['Content-Type'] .= ";$eol boundary=\"$boundary\"";}return $headers;}/*** Validate and set build parameters** @return void* @access private*/function _checkParams(){$encodings = array('7bit', '8bit', 'base64', 'quoted-printable');$this->_build_params['text_encoding']= strtolower($this->_build_params['text_encoding']);$this->_build_params['html_encoding']= strtolower($this->_build_params['html_encoding']);if (!in_array($this->_build_params['text_encoding'], $encodings)) {$this->_build_params['text_encoding'] = '7bit';}if (!in_array($this->_build_params['html_encoding'], $encodings)) {$this->_build_params['html_encoding'] = '7bit';}// text bodyif ($this->_build_params['text_encoding'] == '7bit'&& !preg_match('/ascii/i', $this->_build_params['text_charset'])&& preg_match('/[^\x00-\x7F]/', $this->_txtbody)) {$this->_build_params['text_encoding'] = 'quoted-printable';}// html bodyif ($this->_build_params['html_encoding'] == '7bit'&& !preg_match('/ascii/i', $this->_build_params['html_charset'])&& preg_match('/[^\x00-\x7F]/', $this->_htmlbody)) {$this->_build_params['html_encoding'] = 'quoted-printable';}}} // End of class