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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>* @copyright 2003-2006 PEAR <pear-group@php.net>* @license http://www.opensource.org/licenses/bsd-license.php BSD License* @version CVS: $Id: mime.php,v 1.1.6.1 2007-11-19 12:53:54 alexandre_tb Exp $* @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;/*** contains the mime encoded text** @var string* @access private*/var $_mime;/*** contains the multipart content** @var string* @access private*/var $_multipart;/*** list of the attached images** @var array* @access private*/var $_html_images = array();/*** list of the attachements** @var array* @access private*/var $_parts = array();/*** Build parameters** @var array* @access private*/var $_build_params = array();/*** Headers for the mail** @var array* @access private*/var $_headers = array();/*** End Of Line sequence (for serialize)** @var string* @access private*/var $_eol;/*** Constructor function.** @param string $crlf what type of linebreak to use.* Defaults to "\r\n"** @return void** @access public*/function Mail_mime($crlf = "\r\n"){$this->_setEOL($crlf);$this->_build_params = array('head_encoding' => 'quoted-printable','text_encoding' => '7bit','html_encoding' => 'quoted-printable','7bit_wrap' => 998,'html_charset' => 'ISO-8859-1','text_charset' => 'ISO-8859-1','head_charset' => 'ISO-8859-1');}/*** wakeup function called by unserialize. It re-sets the EOL constant** @access private* @return void*/function __wakeup(){$this->_setEOL($this->_eol);}/*** 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;}/*** 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;}/*** 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 $file is a filename or not.* Defaults to true** @return bool true on success* @access public*/function addHTMLImage($file, $c_type='application/octet-stream',$name = '', $isfile = true){$filedata = ($isfile === true) ? $this->_file2str($file): $file;if ($isfile === true) {$filename = ($name == '' ? $file : $name);} else {$filename = $name;}if (PEAR::isError($filedata)) {return $filedata;}$this->_html_images[] = array('body' => $filedata,'name' => $filename,'c_type' => $c_type,'cid' => md5(uniqid(time())));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 used in the filename* of this attachment.* @param string $language The language of the attachment* @param string $location The RFC 2557.4 location of the attachment** @return mixed true on success or PEAR_Error object* @access public*/function addAttachment($file,$c_type = 'application/octet-stream',$name = '',$isfile = true,$encoding = 'base64',$disposition = 'attachment',$charset = '',$language = '',$location = ''){$filedata = ($isfile === true) ? $this->_file2str($file): $file;if ($isfile === true) {// Force the name the user supplied, otherwise use $file$filename = (strlen($name)) ? $name : $file;} else {$filename = $name;}if (!strlen($filename)) {$msg = "The supplied filename for the attachment can't be empty";$err = PEAR::raiseError($msg);return $err;}$filename = basename($filename);if (PEAR::isError($filedata)) {return $filedata;}$this->_parts[] = array('body' => $filedata,'name' => $filename,'c_type' => $c_type,'encoding' => $encoding,'charset' => $charset,'language' => $language,'location' => $location,'disposition' => $disposition);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){if (!is_readable($file_name)) {$err = PEAR::raiseError('File is not readable ' . $file_name);return $err;}if (!$fd = fopen($file_name, 'rb')) {$err = PEAR::raiseError('Could not open ' . $file_name);return $err;}$filesize = filesize($file_name);if ($filesize == 0) {$cont = "";} else {if ($magic_quote_setting = get_magic_quotes_runtime()) {set_magic_quotes_runtime(0);}$cont = fread($fd, $filesize);if ($magic_quote_setting) {set_magic_quotes_runtime($magic_quote_setting);}}fclose($fd);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'] = $this->_build_params['text_charset'];if (is_object($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'] = $this->_build_params['html_charset'];if (is_object($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();$params['content_type'] = 'multipart/mixed';//Create empty multipart/mixed Mail_mimePart object to return$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';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';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['dfilename'] = $value['name'];$params['cid'] = $value['cid'];$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['dfilename'] = $value['name'];$params['encoding'] = $value['encoding'];if ($value['charset']) {$params['charset'] = $value['charset'];}if ($value['language']) {$params['language'] = $value['language'];}if ($value['location']) {$params['location'] = $value['location'];}$params['content_type'] = $value['c_type'];$params['disposition'] = isset($value['disposition']) ?$value['disposition'] : 'attachment';$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 $xtra_headers parameter!** @param string $separation The separation etween these two parts.* @param array $build_params The Build parameters passed to the* &get() function. See &get for more info.* @param array $xtra_headers The extra headers that should be passed* to the &headers() function.* See that function for more info.* @param bool $overwrite Overwrite the existing headers with new.** @return string The complete e-mail.* @access public*/function getMessage($separation = null,$build_params = null,$xtra_headers = null,$overwrite = false){if ($separation === null) {$separation = MAIL_MIME_CRLF;}$body = $this->get($build_params);$head = $this->txtHeaders($xtra_headers, $overwrite);$mail = $head . $separation . $body;return $mail;}/*** Builds the multipart message from the list ($this->_parts) and* returns the mime content.** @param array $build_params Build parameters that change the way the email* is built. Should be associative. Can contain:* head_encoding - What encoding to use for the headers.* Options: quoted-printable or base64* Default is quoted-printable* text_encoding - What encoding to use for plain text* Options: 7bit, 8bit,* base64, or quoted-printable* Default is 7bit* html_encoding - What encoding to use for html* Options: 7bit, 8bit,* base64, or quoted-printable* Default is quoted-printable* 7bit_wrap - Number of characters before text is* wrapped in 7bit encoding* Default is 998* html_charset - The character set to use for html.* Default is iso-8859-1* text_charset - The character set to use for text.* Default is iso-8859-1* head_charset - The character set to use for headers.* Default is iso-8859-1** @return string The mime content* @access public*/function &get($build_params = null){if (isset($build_params)) {while (list($key, $value) = each($build_params)) {$this->_build_params[$key] = $value;}}if (isset($this->_headers['From'])){$domain = @strstr($this->_headers['From'],'@');//Bug #11381: Illegal characters in domain ID$domain = str_replace(array("<", ">", "&", "(", ")", " ", "\"", "'"), "", $domain);$domain = urlencode($domain);foreach($this->_html_images as $i => $img){$this->_html_images[$i]['cid'] = $this->_html_images[$i]['cid'] . $domain;}}if (count($this->_html_images) AND 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:' . $value['cid'] . '\2)';$this->_htmlbody = preg_replace($regex, $rep, $this->_htmlbody);$this->_html_images[$key]['name'] =basename($this->_html_images[$key]['name']);}}$null = null;$attachments = count($this->_parts) ? true : false;$html_images = count($this->_html_images) ? true : false;$html = strlen($this->_htmlbody) ? true : false;$text = (!$html AND strlen($this->_txtbody)) ? true : false;switch (true) {case $text AND !$attachments:$message =& $this->_addTextPart($null, $this->_txtbody);break;case !$text AND !$html AND $attachments:$message =& $this->_addMixedPart();for ($i = 0; $i < count($this->_parts); $i++) {$this->_addAttachmentPart($message, $this->_parts[$i]);}break;case $text AND $attachments:$message =& $this->_addMixedPart();$this->_addTextPart($message, $this->_txtbody);for ($i = 0; $i < count($this->_parts); $i++) {$this->_addAttachmentPart($message, $this->_parts[$i]);}break;case $html AND !$attachments AND !$html_images:if (isset($this->_txtbody)) {$message =& $this->_addAlternativePart($null);$this->_addTextPart($message, $this->_txtbody);$this->_addHtmlPart($message);} else {$message =& $this->_addHtmlPart($null);}break;case $html AND !$attachments AND $html_images:$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 AND $attachments AND !$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 AND $attachments AND $html_images:$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($message)) {$output = $message->encode();$this->_headers = array_merge($this->_headers,$output['headers']);$body = $output['body'];return $body;} else {$ret = false;return $ret;}}/*** 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.* @param bool $overwrite Overwrite already existing headers.** @return array Assoc array with the mime headers* @access public*/function &headers($xtra_headers = null, $overwrite = false){// Content-Type header should already be present,// So just add mime version header$headers['MIME-Version'] = '1.0';if (isset($xtra_headers)) {$headers = array_merge($headers, $xtra_headers);}if ($overwrite) {$this->_headers = array_merge($this->_headers, $headers);} else {$this->_headers = array_merge($headers, $this->_headers);}$encodedHeaders = $this->_encodeHeaders($this->_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.* @param bool $overwrite Overwrite the existing heaers with new.** @return string Plain text headers* @access public*/function txtHeaders($xtra_headers = null, $overwrite = false){$headers = $this->headers($xtra_headers, $overwrite);$ret = '';foreach ($headers as $key => $val) {$ret .= "$key: $val" . MAIL_MIME_CRLF;}return $ret;}/*** 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 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 specifiy* 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 a header 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] = $value;}//$hdr_name: Name of the heaer//$hdr_value: Full line of header value.//$hdr_value_out: The recombined $hdr_val-atoms, or the encoded string.$useIconv = true;if (isset($build_params['ignore-iconv'])) {$useIconv = !$build_params['ignore-iconv'];}foreach ($input as $hdr_name => $hdr_value) {if (preg_match('#([\x80-\xFF]){1}#', $hdr_value)) {if (function_exists('iconv_mime_encode') && $useIconv) {$imePrefs = array();if ($build_params['head_encoding'] == 'base64') {$imePrefs['scheme'] = 'B';} else {$imePrefs['scheme'] = 'Q';}$imePrefs['input-charset'] = $build_params['head_charset'];$imePrefs['output-charset'] = $build_params['head_charset'];$imePrefs['line-length'] = 74;$imePrefs['line-break-chars'] = "\r\n"; //Specified in RFC2047$hdr_value = iconv_mime_encode($hdr_name, $hdr_value, $imePrefs);$hdr_value = preg_replace("#^{$hdr_name}\:\ #", "", $hdr_value);} elseif ($build_params['head_encoding'] == 'base64') {//Base64 encoding has been selected.//Base64 encode the entire string$hdr_value = base64_encode($hdr_value);//Generate the header using the specified params and dynamicly//determine the maximum length of such strings.//75 is the value specified in the RFC. The first -2 is there so//the later regexp doesn't break any of the translated chars.//The -2 on the first line-regexp is to compensate for the ": "//between the header-name and the header value$prefix = '=?' . $build_params['head_charset'] . '?B?';$suffix = '?=';$maxLength = 75 - strlen($prefix . $suffix) - 2;$maxLength1stLine = $maxLength - strlen($hdr_name) - 2;//We can cut base4 every 4 characters, so the real max//we can get must be rounded down.$maxLength = $maxLength - ($maxLength % 4);$maxLength1stLine = $maxLength1stLine - ($maxLength1stLine % 4);$cutpoint = $maxLength1stLine;$hdr_value_out = $hdr_value;$output = "";while ($hdr_value_out) {//Split translated string at every $maxLength$part = substr($hdr_value_out, 0, $cutpoint);$hdr_value_out = substr($hdr_value_out, $cutpoint);$cutpoint = $maxLength;//RFC 2047 specifies that any split header should//be seperated by a CRLF SPACE.if ($output) {$output .= "\r\n ";}$output .= $prefix . $part . $suffix;}$hdr_value = $output;} else {//quoted-printable encoding has been selected//Fix for Bug #10298, Ota Mares <om@viazenetti.de>//Check if there is a double quote at beginning or end of//the string to prevent that an open or closing quote gets//ignored because it is encapsuled by an encoding pre/suffix.//Remove the double quote and set the specific prefix or//suffix variable so that we can concat the encoded string and//the double quotes back together to get the intended string.$quotePrefix = $quoteSuffix = '';if ($hdr_value{0} == '"') {$hdr_value = substr($hdr_value, 1);$quotePrefix = '"';}if ($hdr_value{strlen($hdr_value)-1} == '"') {$hdr_value = substr($hdr_value, 0, -1);$quoteSuffix = '"';}//Generate the header using the specified params and dynamicly//determine the maximum length of such strings.//75 is the value specified in the RFC. The -2 is there so//the later regexp doesn't break any of the translated chars.//The -2 on the first line-regexp is to compensate for the ": "//between the header-name and the header value$prefix = '=?' . $build_params['head_charset'] . '?Q?';$suffix = '?=';$maxLength = 75 - strlen($prefix . $suffix) - 2 - 1;$maxLength1stLine = $maxLength - strlen($hdr_name) - 2;$maxLength = $maxLength - 1;//Replace all special characters used by the encoder.$search = array('=', '_', '?', ' ');$replace = array('=3D', '=5F', '=3F', '_');$hdr_value = str_replace($search, $replace, $hdr_value);//Replace all extended characters (\x80-xFF) with their//ASCII values.$hdr_value = preg_replace('#([\x80-\xFF])#e','"=" . strtoupper(dechex(ord("\1")))',$hdr_value);//This regexp will break QP-encoded text at every $maxLength//but will not break any encoded letters.$reg1st = "|(.{0,$maxLength1stLine}[^\=][^\=])|";$reg2nd = "|(.{0,$maxLength}[^\=][^\=])|";//Fix for Bug #10298, Ota Mares <om@viazenetti.de>//Concat the double quotes and encoded string together$hdr_value = $quotePrefix . $hdr_value . $quoteSuffix;$hdr_value_out = $hdr_value;$realMax = $maxLength1stLine + strlen($prefix . $suffix);if (strlen($hdr_value_out) >= $realMax) {//Begin with the regexp for the first line.$reg = $reg1st;$output = "";while ($hdr_value_out) {//Split translated string at every $maxLength//But make sure not to break any translated chars.$found = preg_match($reg, $hdr_value_out, $matches);//After this first line, we need to use a different//regexp for the first line.$reg = $reg2nd;//Save the found part and encapsulate it in the//prefix & suffix. Then remove the part from the//$hdr_value_out variable.if ($found) {$part = $matches[0];$len = strlen($matches[0]);$hdr_value_out = substr($hdr_value_out, $len);} else {$part = $hdr_value_out;$hdr_value_out = "";}//RFC 2047 specifies that any split header should//be seperated by a CRLF SPACEif ($output) {$output .= "\r\n ";}$output .= $prefix . $part . $suffix;}$hdr_value_out = $output;} else {$hdr_value_out = $prefix . $hdr_value_out . $suffix;}$hdr_value = $hdr_value_out;}}$input[$hdr_name] = $hdr_value;}return $input;}/*** Set the object's end-of-line and define the constant if applicable.** @param string $eol End Of Line sequence** @return void* @access private*/function _setEOL($eol){$this->_eol = $eol;if (!defined('MAIL_MIME_CRLF')) {define('MAIL_MIME_CRLF', $this->_eol, true);}}} // End of class