X-Git-Url: https://vcs.fsf.org/?p=squirrelmail.git;a=blobdiff_plain;f=class%2Fmime%2FRfc822Header.class.php;h=d509503558afa892cc9b6c31019b3da2b65698ab;hp=4dc03fab48f4a55f883cd794f95887c89100c567;hb=4b5049de2fa934c45599d6e4c74bf2bbee10d34d;hpb=cfebb7248513317af1acb23a9dddd742bc189e74 diff --git a/class/mime/Rfc822Header.class.php b/class/mime/Rfc822Header.class.php index 4dc03fab..d5095035 100644 --- a/class/mime/Rfc822Header.class.php +++ b/class/mime/Rfc822Header.class.php @@ -3,54 +3,161 @@ /** * Rfc822Header.class.php * - * Copyright (c) 2003 The SquirrelMail Project Team - * Licensed under the GNU GPL. For full terms see the file COPYING. + * This file contains functions needed to handle headers in mime messages. * - * This contains functions needed to handle mime messages. - * - * $Id$ + * @copyright © 2003-2007 The SquirrelMail Project Team + * @license http://opensource.org/licenses/gpl-license.php GNU Public License + * @version $Id$ * @package squirrelmail + * @subpackage mime + * @since 1.3.2 */ /** + * MIME header class * input: header_string or array + * You must call parseHeader() function after creating object in order to fill object's + * parameters. + * @todo FIXME: there is no constructor function and class should ignore all input args. * @package squirrelmail + * @subpackage mime + * @since 1.3.0 */ class Rfc822Header { - var $date = '', - $subject = '', - $from = array(), - $sender = '', - $reply_to = array(), - $mail_followup_to = array(), - $to = array(), - $cc = array(), - $bcc = array(), - $in_reply_to = '', - $message_id = '', - $references = '', - $mime = false, - $content_type = '', - $disposition = '', - $xmailer = '', - $priority = 3, - $dnt = '', - $encoding = '', - $content_id = '', - $content_desc = '', - $mlist = array(), - $more_headers = array(); /* only needed for constructing headers - in smtp.php */ + /** + * Date header + * @var mixed + */ + var $date = -1; + /** + * Subject header + * @var string + */ + var $subject = ''; + /** + * From header + * @var array + */ + var $from = array(); + /** + * @var mixed + */ + var $sender = ''; + /** + * Reply-To header + * @var array + */ + var $reply_to = array(); + /** + * Mail-Followup-To header + * @var array + */ + var $mail_followup_to = array(); + /** + * To header + * @var array + */ + var $to = array(); + /** + * Cc header + * @var array + */ + var $cc = array(); + /** + * Bcc header + * @var array + */ + var $bcc = array(); + /** + * In-reply-to header + * @var string + */ + var $in_reply_to = ''; + /** + * Message-ID header + * @var string + */ + var $message_id = ''; + /** + * References header + * @var string + */ + var $references = ''; + /** + * @var mixed + */ + var $mime = false; + /** + * Content Type object + * @var object + */ + var $content_type = ''; + /** + * @var mixed + */ + var $disposition = ''; + /** + * X-Mailer header + * @var string + */ + var $xmailer = ''; + /** + * Priority header + * @var integer + */ + var $priority = 3; + /** + * Disposition notification for requesting message delivery notification (MDN) + * @var mixed + */ + var $dnt = ''; + /** + * Delivery notification (DR) + * @var mixed + */ + var $drnt = ''; + /** + * @var mixed + */ + var $encoding = ''; + /** + * @var mixed + */ + var $content_id = ''; + /** + * @var mixed + */ + var $content_desc = ''; + /** + * @var mixed + */ + var $mlist = array(); + /** + * SpamAssassin 'x-spam-status' header + * @var mixed + */ + var $x_spam_status = array(); + /** + * Extra header + * only needed for constructing headers in delivery class + * @var array + */ + var $more_headers = array(); + + /** + * @param mixed $hdr string or array with message headers + */ function parseHeader($hdr) { if (is_array($hdr)) { $hdr = implode('', $hdr); } - /* First we unfold the header */ - $hdr = trim(str_replace(array("\r\n\t", "\r\n "),array(' ', ' '), $hdr)); + /* First we replace \r\n by \n and unfold the header */ + /* FIXME: unfolding header with multiple spaces "\n( +)" */ + $hdr = trim(str_replace(array("\r\n", "\n\t", "\n "),array("\n", ' ', ' '), $hdr)); /* Now we can make a new header array with */ /* each element representing a headerline */ - $hdr = explode("\r\n" , $hdr); + $hdr = explode("\n" , $hdr); foreach ($hdr as $line) { $pos = strpos($line, ':'); if ($pos > 0) { @@ -61,11 +168,15 @@ class Rfc822Header { } } } - if ($this->content_type == '') { + if (!is_object($this->content_type)) { $this->parseContentType('text/plain; charset=us-ascii'); } } + /** + * @param string $value + * @return string + */ function stripComments($value) { $result = ''; $cnt = strlen($value); @@ -80,7 +191,9 @@ class Rfc822Header { } $result .= $value{$i}; } - $result .= $value{$i}; + if($i < $cnt) { + $result .= $value{$i}; + } break; case '(': $depth = 1; @@ -108,6 +221,11 @@ class Rfc822Header { return $result; } + /** + * Parse header field according to field type + * @param string $field field name + * @param string $value field value + */ function parseField($field, $value) { $field = strtolower($field); switch($field) { @@ -153,11 +271,14 @@ class Rfc822Header { $this->references = $value; break; case 'x-confirm-reading-to': - case 'return-receipt-to': case 'disposition-notification-to': $value = $this->stripComments($value); $this->dnt = $this->parseAddress($value); break; + case 'return-receipt-to': + $value = $this->stripComments($value); + $this->drnt = $this->parseAddress($value); + break; case 'mime-version': $value = $this->stripComments($value); $value = str_replace(' ', '', $value); @@ -186,7 +307,9 @@ class Rfc822Header { $this->xmailer = $value; break; case 'x-priority': - $this->priority = $value; + case 'importance': + case 'priority': + $this->priority = $this->parsePriority($value); break; case 'list-post': $value = $this->stripComments($value); @@ -220,14 +343,20 @@ class Rfc822Header { $value = $this->stripComments($value); $this->mlist('id', $value); break; + case 'x-spam-status': + $this->x_spam_status = $this->parseSpamStatus($value); + break; default: break; } } + /** + * @param string $address + * @return array + */ function getAddressTokens($address) { $aTokens = array(); - $aAddress = array(); $aSpecials = array('(' ,'<' ,',' ,';' ,':'); $aReplace = array(' (',' <',' ,',' ;',' :'); $address = str_replace($aSpecials,$aReplace,$address); @@ -350,6 +479,14 @@ class Rfc822Header { } return $aTokens; } + + /** + * @param array $aStack + * @param array $aComment + * @param string $sEmail + * @param string $sGroup + * @return object AddressStructure object + */ function createAddressObject(&$aStack,&$aComment,&$sEmail,$sGroup='') { //$aStack=explode(' ',implode('',$aStack)); if (!$sEmail) { @@ -386,21 +523,8 @@ class Rfc822Header { return $oAddr; } - /* - * parseAddress: recursive function for parsing address strings and store - * them in an address stucture object. - * input: $address = string - * $ar = boolean (return array instead of only the - * first element) - * $addr_ar = array with parsed addresses // obsolete - * $group = string // obsolete - * $host = string (default domainname in case of - * addresses without a domainname) - * $lookup = callback function (for lookup address - * strings which are probably nicks - * (without @ ) ) - * output: array with addressstructure objects or only one - * address_structure object. + /** + * recursive function for parsing address strings and storing them in an address stucture object. * personal name: encoded: =?charset?Q|B?string?= * quoted: "string" * normal: string @@ -408,11 +532,17 @@ class Rfc822Header { * : mailbox@host * This function is also used for validating addresses returned from compose * That's also the reason that the function became a little bit huge + * @param string $address + * @param boolean $ar return array instead of only the first element + * @param array $addr_ar (obsolete) array with parsed addresses + * @param string $group (obsolete) + * @param string $host default domainname in case of addresses without a domainname + * @param string $lookup (since) callback function for lookup of address strings which are probably nicks (without @) + * @return mixed array with AddressStructure objects or only one address_structure object. */ - function parseAddress($address,$ar=false,$aAddress=array(),$sGroup='',$sHost='',$lookup=false) { $aTokens = $this->getAddressTokens($address); - $sPersonal = $sEmail = $sComment = $sGroup = ''; + $sPersonal = $sEmail = $sGroup = ''; $aStack = $aComment = array(); foreach ($aTokens as $sToken) { $cChar = $sToken{0}; @@ -505,6 +635,39 @@ class Rfc822Header { } } + /** + * Normalise the different Priority headers into a uniform value, + * namely that of the X-Priority header (1, 3, 5). Supports: + * Priority, X-Priority, Importance. + * X-MS-Mail-Priority is not parsed because it always coincides + * with one of the other headers. + * + * NOTE: this is actually a duplicate from the function in + * functions/imap_messages. I'm not sure if it's ok here to call + * that function? + * @param string $sValue literal priority name + * @return integer + */ + function parsePriority($sValue) { + // don't use function call inside array_shift. + $aValue = split('/\w/',trim($sValue)); + $value = strtolower(array_shift($aValue)); + + if ( is_numeric($value) ) { + return $value; + } + if ( $value == 'urgent' || $value == 'high' ) { + return 1; + } elseif ( $value == 'non-urgent' || $value == 'low' ) { + return 5; + } + // default is normal priority + return 3; + } + + /** + * @param string $value content type header + */ function parseContentType($value) { $pos = strpos($value, ';'); $props = ''; @@ -525,7 +688,11 @@ class Rfc822Header { $this->content_type = $content_type; } - /* RFC2184 */ + /** + * RFC2184 + * @param array $aParameters + * @return array + */ function processParameters($aParameters) { $aResults = array(); $aCharset = array(); @@ -552,13 +719,21 @@ class Rfc822Header { $value = substr($value,strlen($charset)+1); $language = substr($value,0,strpos($value,"'")); $value = substr($value,strlen($charset)+1); - // FIX ME What's the status of charset decode with language information ???? + /* FIXME: What's the status of charset decode with language information ???? + * Maybe language information contains only ascii text and charset_decode() + * only runs htmlspecialchars() on it. If it contains 8bit information, you + * get html encoded text in charset used by selected translation. + */ $value = charset_decode($charset,$value); $aResults[$key] = $value; } return $aResults; } + /** + * @param string $value + * @return array + */ function parseProperties($value) { $propArray = explode(';', $value); $propResultArray = array(); @@ -568,7 +743,7 @@ class Rfc822Header { if ($pos > 0) { $key = trim(substr($prop, 0, $pos)); $val = trim(substr($prop, $pos+1)); - if ($val{0} == '"') { + if (strlen($val) > 0 && $val{0} == '"') { $val = substr($val, 1, -1); } $propResultArray[$key] = $val; @@ -577,6 +752,10 @@ class Rfc822Header { return $this->processParameters($propResultArray); } + /** + * Fills disposition object in rfc822Header object + * @param string $value + */ function parseDisposition($value) { $pos = strpos($value, ';'); $props = ''; @@ -592,6 +771,11 @@ class Rfc822Header { $this->disposition = $disp; } + /** + * Fills mlist array keys in rfc822Header object + * @param string $field + * @param string $value + */ function mlist($field, $value) { $res_a = array(); $value_a = explode(',', $value); @@ -609,11 +793,61 @@ class Rfc822Header { $this->mlist[$field] = $res_a; } - /* - * function to get the addres strings out of the header. - * Arguments: string or array of strings ! + /** + * Parses the X-Spam-Status header + * @param string $value + */ + function parseSpamStatus($value) { + // Header value looks like this: + // No, score=1.5 required=5.0 tests=MSGID_FROM_MTA_ID,NO_REAL_NAME,UPPERCASE_25_50 autolearn=disabled version=3.1.0-gr0 + + $spam_status = array(); + + if (preg_match ('/^(No|Yes),\s+score=(-?\d+\.\d+)\s+required=(-?\d+\.\d+)\s+tests=(.*?)\s+autolearn=(.*?)\s+version=(.+?)$/', $value, $matches)) { + // full header + $spam_status['bad_format'] = 0; + $spam_status['value'] = $matches[0]; + // is_spam + if (isset($matches[1]) + && strtolower($matches[1]) == 'yes') { + $spam_status['is_spam'] = true; + } else { + $spam_status['is_spam'] = false; + } + + // score + $spam_status['score'] = $matches[2]; + + // required + $spam_status['required'] = $matches[3]; + + // tests + $tests = array(); + $tests = explode(',', $matches[4]); + foreach ($tests as $test) { + $spam_status['tests'][] = trim($test); + } + + // autolearn + $spam_status['autolearn'] = $matches[5]; + + // version + $spam_status['version'] = $matches[6]; + } else { + $spam_status['bad_format'] = 1; + $spam_status['value'] = $value; + } + return $spam_status; + } + + /** + * function to get the address strings out of the header. * example1: header->getAddr_s('to'). * example2: header->getAddr_s(array('to', 'cc', 'bcc')) + * @param mixed $arr string or array of strings + * @param string $separator + * @param boolean $encoded (since 1.4.0) return encoded or plain text addresses + * @return string */ function getAddr_s($arr, $separator = ',',$encoded=false) { $s = ''; @@ -621,7 +855,7 @@ class Rfc822Header { if (is_array($arr)) { foreach($arr as $arg) { if ($this->getAddr_s($arg, $separator, $encoded)) { - $s .= $separator . $result; + $s .= $separator; } } $s = ($s ? substr($s, 2) : $s); @@ -651,6 +885,13 @@ class Rfc822Header { return $s; } + /** + * function to get the array of addresses out of the header. + * @param mixed $arg string or array of strings + * @param array $excl_arr array of excluded email addresses + * @param array $arr array of added email addresses + * @return array + */ function getAddr_a($arg, $excl_arr = array(), $arr = array()) { if (is_array($arg)) { foreach($arg as $argument) { @@ -686,13 +927,18 @@ class Rfc822Header { return $arr; } + /** + * @param mixed $address array or string + * @param boolean $recurs + * @return mixed array, boolean + * @since 1.3.2 + */ function findAddress($address, $recurs = false) { $result = false; if (is_array($address)) { $i=0; foreach($address as $argument) { $match = $this->findAddress($argument, true); - $last = end($match); if ($match[1]) { return $i; } else { @@ -720,7 +966,7 @@ class Rfc822Header { } } } - foreach ($this->cc as $cc) { + foreach ($this->cc as $cc) { if ($cc->host == $srch_addr->host) { if ($cc->mailbox == $srch_addr->mailbox) { $results[] = $srch_addr; @@ -746,11 +992,15 @@ class Rfc822Header { return $result; } + /** + * @param string $type0 media type + * @param string $type1 media subtype + * @return array media properties + * @todo check use of media type arguments + */ function getContentType($type0, $type1) { $type0 = $this->content_type->type0; $type1 = $this->content_type->type1; return $this->content_type->properties; } } - -?>