[squirrelmail.git] / class / mime / Rfc822Header.class.php

<?php

/**
 * Rfc822Header.class.php
 *
 * Copyright (c) 2003 The SquirrelMail Project Team
 * Licensed under the GNU GPL. For full terms see the file COPYING.
 *
 * This contains functions needed to handle mime messages.
 *
 * $Id$
 */

/*
 * rdc822_header class
 * input: header_string or array
 */
class Rfc822Header {
    var $date = '',
        $subject = '',
        $from = array(),
        $sender = '',
        $reply_to = array(),
        $to = array(),
        $cc = array(),
        $bcc = array(),
        $in_reply_to = '',
        $message_id = '',
        $references = '',
        $mime = false,
        $content_type = '',
        $disposition = '',
        $xmailer = '',
        $priority = 3,
        $dnt = '',
        $encoding = '',
        $mlist = array(),
        $more_headers = array(); /* only needed for constructing headers
                                    in smtp.php */
    function parseHeader($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));

        /* Now we can make a new header array with */
        /* each element representing a headerline  */
        $hdr = explode("\r\n" , $hdr);
        foreach ($hdr as $line) {
            $pos = strpos($line, ':');
            if ($pos > 0) {
                $field = substr($line, 0, $pos);
                if (!strstr($field,' ')) { /* valid field */
                        $value = trim(substr($line, $pos+1));
                        $this->parseField($field, $value);
                }
            }
        }
        if ($this->content_type == '') {
            $this->parseContentType('text/plain; charset=us-ascii');
        }
    }

    function stripComments($value) {
        $result = '';
        $cnt = strlen($value);
        for ($i = 0; $i < $cnt; ++$i) {
            switch ($value{$i}) {
                case '"':
                    $result .= '"';
                    while ((++$i < $cnt) && ($value{$i} != '"')) {
                        if ($value{$i} == '\\') {
                            $result .= '\\';
                            ++$i;
                        }
                        $result .= $value{$i};
                    }
                    $result .= $value{$i};
                    break;
                case '(':
                    $depth = 1;
                    while (($depth > 0) && (++$i < $cnt)) {
                        switch($value{$i}) {
                            case '\\':
                                ++$i;
                                break;
                            case '(':
                                ++$depth;
                                break;
                            case ')':
                                --$depth;
                                break;
                            default:
                                break;
                        }
                    }
                    break;
                default:
                    $result .= $value{$i};
                    break;
            }
        }
        return $result;
    }

    function parseField($field, $value) {
        $field = strtolower($field);
        switch($field) {
            case 'date':
                $value = $this->stripComments($value);
                $d = strtr($value, array('  ' => ' '));
                $d = explode(' ', $d);
                $this->date = getTimeStamp($d);
                break;
            case 'subject':
                $this->subject = $value;
                break;
            case 'from':
                $this->from = $this->parseAddress($value,true);
                break;
            case 'sender':
                $this->sender = $this->parseAddress($value);
                break;
            case 'reply-to':
                $this->reply_to = $this->parseAddress($value, true);
                break;
            case 'to':
                $this->to = $this->parseAddress($value, true);
                break;
            case 'cc':
                $this->cc = $this->parseAddress($value, true);
                break;
            case 'bcc':
                $this->bcc = $this->parseAddress($value, true);
                break;
            case 'in-reply-to':
                $this->in_reply_to = $value;
                break;
            case 'message-id':
                $value = $this->stripComments($value);
                $this->message_id = $value;
                break;
            case 'references':
                $value = $this->stripComments($value);
                $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 'mime-version':
                $value = $this->stripComments($value);
                $value = str_replace(' ', '', $value);
                $this->mime = ($value == '1.0' ? true : $this->mime);
                break;
            case 'content-type':
                $value = $this->stripComments($value);
                $this->parseContentType($value);
                break;
            case 'content-disposition':
                $value = $this->stripComments($value);
                $this->parseDisposition($value);
                break;
            case 'user-agent':
            case 'x-mailer':
                $this->xmailer = $value;
                break;
            case 'x-priority':
                $this->priority = $value;
                break;
            case 'list-post':
                $value = $this->stripComments($value);
                $this->mlist('post', $value);
                break;
            case 'list-reply':
                $value = $this->stripComments($value);            
                $this->mlist('reply', $value);
                break;
            case 'list-subscribe':
                $value = $this->stripComments($value);            
                $this->mlist('subscribe', $value);
                break;
            case 'list-unsubscribe':
                $value = $this->stripComments($value);
                $this->mlist('unsubscribe', $value);
                break;
            case 'list-archive':
                $value = $this->stripComments($value);
                $this->mlist('archive', $value);
                break;
            case 'list-owner':
                $value = $this->stripComments($value);
                $this->mlist('owner', $value);
                break;
            case 'list-help':
                $value = $this->stripComments($value);
                $this->mlist('help', $value);
                break;
            case 'list-id':
                $value = $this->stripComments($value);
                $this->mlist('id', $value);
                break;
            default:
                break;
        }
    }

    function getAddressTokens($address) {
        $aTokens = array();
        $aAddress = array();
        $aSpecials = array('(' ,'<' ,',' ,';' ,':');
        $aReplace =  array(' (',' <',' ,',' ;',' :');
        $address = str_replace($aSpecials,$aReplace,$address);
        $iCnt = strlen($address);
        $i = 0;
        while ($i < $iCnt) {
            $cChar = $address{$i};
            switch($cChar)
            {
            case '<':
                $iEnd = strpos($address,'>',$i+1);
                if (!$iEnd) {
                   $sToken = substr($address,$i);
                   $i = $iCnt;
                } else {
                   $sToken = substr($address,$i,$iEnd - $i +1);
                   $i = $iEnd;
                }
                $sToken = str_replace($aReplace, $aSpecials,$sToken);
                $aTokens[] = $sToken;
                break;
            case '"':
                $iEnd = strpos($address,$cChar,$i+1);
                if (!$iEnd) {
                    $sToken = substr($address,$i);
                    $i = $iCnt;
                } else {
                    // also remove the surrounding quotes
                    $sToken = substr($address,$i+1,$iEnd - $i -1);
                    $i = $iEnd;
                }
                $sToken = str_replace($aReplace, $aSpecials,$sToken);
                if ($sToken) $aTokens[] = $sToken;
                break;
            case '(':
                $iEnd = strpos($address,')',$i);
                if (!$iEnd) {
                    $sToken = substr($address,$i);
                    $i = $iCnt;
                } else {
                    $iDepth = 1;
                    $iComment = $i;
                    while (($iDepth > 0) && (++$iComment < $iCnt)) {
                        $cCharComment = $address{$iComment};
                        switch($cCharComment) {
                            case '\\':
                                ++$iComment;
                                break;
                            case '(':
                                ++$iDepth;
                                break;
                            case ')':
                                --$iDepth;
                                break;
                            default:
                                break;
                        }
                    }
                    if ($iDepth == 0) {
                        $sToken = substr($address,$i,$iComment - $i +1);
                        $i = $iComment;
                    } else {
                        $sToken = substr($address,$i,$iEnd - $i + 1);
                        $i = $iEnd;
                    }
                }
                $sToken = str_replace($aReplace, $aSpecials,$sToken);
                $aTokens[] = $sToken;
                break;
            case ',':
            case ';':
            case ';':
            case ' ':
                $aTokens[] = $cChar;
                break;
            default:
                $iEnd = strpos($address,' ',$i+1);
                if ($iEnd) {
                    $sToken = trim(substr($address,$i,$iEnd - $i));
                    $i = $iEnd-1;
                } else {
                    $sToken = trim(substr($address,$i));
                    $i = $iCnt;
                }
                if ($sToken) $aTokens[] = $sToken;
            }
            ++$i;
        }
        return $aTokens;
    }
    function createAddressObject(&$aStack,&$aComment,&$sEmail,$sGroup='') {
        if (!$sEmail) {
            while (count($aStack) && !$sEmail) {
                $sEmail = trim(array_pop($aStack));
            }
        }
        if (count($aStack)) {
            $sPersonal = trim(implode('',$aStack));
        } else { 
            $sPersonal = '';
        }
        if (!$sPersonal && count($aComment)) {
            $sComment = trim(implode(' ',$aComment));
            $sPersonal .= $sComment;
        }
        $oAddr =& new AddressStructure();
        if ($sPersonal && substr($sPersonal,0,2) == '=?') {
            $oAddr->personal = encodeHeader($sPersonal);
        } else {
            $oAddr->personal = $sPersonal;
        }
        $oAddr->group = $sGroup;
        $iPosAt = strpos($sEmail,'@');
        if ($iPosAt) {
           $oAddr->mailbox = substr($sEmail, 0, $iPosAt);
           $oAddr->host = substr($sEmail, $iPosAt+1);
        } else {
           $oAddr->mailbox = $sEmail;
           $oAddr->host = false;
        }
        $oAddr->group = $sGroup;
        $sEmail = '';
        $aStack = $aComment = array();
        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.
     *  personal name: encoded: =?charset?Q|B?string?=
     *                 quoted:  "string"
     *                 normal:  string
     *  email        : <mailbox@host>
     *               : 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
     */

    function parseAddress($address,$ar=false,$aAddress=array(),$sGroup='',$sHost='',$lookup=false) {
        $aTokens = $this->getAddressTokens($address);
        $sPersonal = $sEmail = $sComment = $sGroup = '';
        $aStack = $aComment = array();
        foreach ($aTokens as $sToken) {
            $cChar = $sToken{0};
            switch ($cChar)
            {
            case '=':
            case '"':
            case ' ':
                $aStack[] = $sToken; 
                break;
            case '(':
                $aComment[] = substr($sToken,1,-1);
                break;
            case ';':
                if ($sGroup) {
                    $oAddr = end($aAddress);
                    if ($oAddr && $oAddr->group == $sGroup) {
                        $aAddress[] = $this->createAddressObject($aStack,$aComment,$sEmail,$sGroup);
                    } else {
                        /* group is empty */
                        $aAddress[] = $this->createAddressObject(array(),array(),$sGroup,'');
                    }
                    $sGroup = '';
                    $aStack = $aComment = array();
                    break;
                }
            case ',':
                $aAddress[] = $this->createAddressObject($aStack,$aComment,$sEmail,$sGroup);
                break;
            case ':': 
                $sGroup = implode(' ',$aStack); break;
                $aStack = array();
                break;
            case '<':
               $sEmail = trim(substr($sToken,1,-1));
               break;
            case '>':
               /* skip */
               break; 
            default: $aStack[] = $sToken; break;
            }
        }
        /* now do the action again for the last address */
        $aAddress[] = $this->createAddressObject($aStack,$aComment,$sEmail);
        /* try to lookup the addresses in case of invalid email addresses */
        $aProcessedAddress = array();
        foreach ($aAddress as $oAddr) {
          $aAddrBookAddress = array();
          if (!$oAddr->host) {
            $grouplookup = false;
            if ($lookup) {
                 $aAddr = call_user_func_array($lookup,array($oAddr->mailbox));
                 if (isset($aAddr['email'])) {
                     if (strpos($aAddr['email'],',')) {
                         $grouplookup = true;
                         $aAddrBookAddress = $this->parseAddress($aAddr['email'],true);
                     } else {
                         $iPosAt = strpos($aAddr['email'], '@');
                         $oAddr->mailbox = substr($aAddr['email'], 0, $iPosAt);
                         $oAddr->host = substr($aAddr['email'], $iPosAt+1);
                         if (isset($aAddr['name'])) {
                             $oAddr->personal = $aAddr['name'];
                         } else {
                             $oAddr->personal = encodeHeader($sPersonal);
                         }
                     }
                 }
            }
            if (!$grouplookup && !$oAddr->mailbox) {
                $oAddr->mailbox = trim($sEmail);
                if ($sHost && $oAddr->mailbox) {
                    $oAddr->host = $sHost;
                }
            }
          }
          if (!$aAddrBookAddress && $oAddr->mailbox) {
              $aProcessedAddress[] = $oAddr;
          } else {
              $aProcessedAddress = array_merge($aProcessedAddress,$aAddrBookAddress); 
          }
        }
        if ($ar) { 
            return $aProcessedAddress;
        } else {
            return $aProcessedAddress[0];
        }
    } 

    function parseContentType($value) {
        $pos = strpos($value, ';');
        $props = '';
        if ($pos > 0) {
           $type = trim(substr($value, 0, $pos));
           $props = trim(substr($value, $pos+1));
        } else {
           $type = $value;
        }
        $content_type = new ContentType($type);
        if ($props) {
            $properties = $this->parseProperties($props);
            if (!isset($properties['charset'])) {
                $properties['charset'] = 'us-ascii';
            }
            $content_type->properties = $this->parseProperties($props);
        }
        $this->content_type = $content_type;
    }

    function parseProperties($value) {
        $propArray = explode(';', $value);
        $propResultArray = array();
        foreach ($propArray as $prop) {
            $prop = trim($prop);
            $pos = strpos($prop, '=');
            if ($pos > 0)  {
                $key = trim(substr($prop, 0, $pos));
                $val = trim(substr($prop, $pos+1));
                if ($val{0} == '"') {
                    $val = substr($val, 1, -1);
                }
                $propResultArray[$key] = $val;
            }
        }
        return $propResultArray;
    }

    function parseDisposition($value) {
        $pos = strpos($value, ';');
        $props = '';
        if ($pos > 0) {
            $name = trim(substr($value, 0, $pos));
            $props = trim(substr($value, $pos+1));
        } else {
            $name = $value;
        }
        $props_a = $this->parseProperties($props);
        $disp = new Disposition($name);
        $disp->properties = $props_a;
        $this->disposition = $disp;
    }

    function mlist($field, $value) {
        $res_a = array();
        $value_a = explode(',', $value);
        foreach ($value_a as $val) {
            $val = trim($val);
            if ($val{0} == '<') {
                $val = substr($val, 1, -1);
            }
            if (substr($val, 0, 7) == 'mailto:') {
                $res_a['mailto'] = substr($val, 7);
            } else {
                $res_a['href'] = $val;
            }
        }
        $this->mlist[$field] = $res_a;
    }

    /*
     * function to get the addres strings out of the header.
     * Arguments: string or array of strings !
     * example1: header->getAddr_s('to').
     * example2: header->getAddr_s(array('to', 'cc', 'bcc'))
     */
    function getAddr_s($arr, $separator = ',',$encoded=false) {
        $s = '';

        if (is_array($arr)) {
            foreach($arr as $arg) {
                if ($this->getAddr_s($arg, $separator, $encoded)) {
                    $s .= $separator . $result;
                }
            }
            $s = ($s ? substr($s, 2) : $s);
        } else {
            $addr = $this->{$arr};
            if (is_array($addr)) {
                foreach ($addr as $addr_o) {
                    if (is_object($addr_o)) {
                        if ($encoded) {
                            $s .= $addr_o->getEncodedAddress() . $separator;
                        } else {
                            $s .= $addr_o->getAddress() . $separator;
                        }
                    }
                }
                $s = substr($s, 0, -strlen($separator));
            } else {
                if (is_object($addr)) {
                    if ($encoded) {
                        $s .= $addr->getEncodedAddress();
                    } else {
                        $s .= $addr->getAddress();
                    }
                }
            }
        }
        return $s;
    }

    function getAddr_a($arg, $excl_arr = array(), $arr = array()) {
        if (is_array($arg)) {
            foreach($arg as $argument) {
                $arr = $this->getAddr_a($argument, $excl_arr, $arr);
            }
        } else {
            $addr = $this->{$arg};
            if (is_array($addr)) {
                foreach ($addr as $next_addr) {
                    if (is_object($next_addr)) {
                        if (isset($next_addr->host) && ($next_addr->host != '')) {
                            $email = $next_addr->mailbox . '@' . $next_addr->host;
                        } else {
                            $email = $next_addr->mailbox;
                        }
                        $email = strtolower($email);
                        if ($email && !isset($arr[$email]) && !isset($excl_arr[$email])) {
                            $arr[$email] = $next_addr->personal;
                        }
                    }
                }
            } else {
                if (is_object($addr)) {
                    $email  = $addr->mailbox;
                    $email .= (isset($addr->host) ? '@' . $addr->host : '');
                    $email  = strtolower($email);
                    if ($email && !isset($arr[$email]) && !isset($excl_arr[$email])) {
                        $arr[$email] = $addr->personal;
                    }
                }
            }
        }
        return $arr;
    }
    
    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 $i;
                } else {
                    if (count($match[0]) && !$result) {
                        $result = $i;
                    }
                }
                ++$i;        
            }
        } else {
            if (!is_array($this->cc)) $this->cc = array();
            $srch_addr = $this->parseAddress($address);
            $results = array();
            foreach ($this->to as $to) {
                if ($to->host == $srch_addr->host) {
                    if ($to->mailbox == $srch_addr->mailbox) {
                        $results[] = $srch_addr;
                        if ($to->personal == $srch_addr->personal) {
                            if ($recurs) {
                                return array($results, true);
                            } else {
                                return true;
                            }
                        }
                    }
                }
            }
             foreach ($this->cc as $cc) {
                if ($cc->host == $srch_addr->host) {
                    if ($cc->mailbox == $srch_addr->mailbox) {
                        $results[] = $srch_addr;
                        if ($cc->personal == $srch_addr->personal) {
                            if ($recurs) {
                                return array($results, true);
                            } else {
                                return true;
                            }
                        }
                    }
                }
            }
            if ($recurs) {
                return array($results, false);
            } elseif (count($result)) {
                return true;
            } else {
                return false;
            }        
        }
        //exit;
        return $result;
    }

    function getContentType($type0, $type1) {
        $type0 = $this->content_type->type0;
        $type1 = $this->content_type->type1;
        return $this->content_type->properties;
    }
}

?>
Commit	Line	Data
19d470aa	1	<?php
	2
	3	/**
	4	* Rfc822Header.class.php
	5	*
76911253	6	* Copyright (c) 2003 The SquirrelMail Project Team
19d470aa	7	* Licensed under the GNU GPL. For full terms see the file COPYING.
	8	*
	9	* This contains functions needed to handle mime messages.
	10	*
	11	* $Id$
	12	*/
	13
	14	/*
	15	* rdc822_header class
	16	* input: header_string or array
	17	*/
	18	class Rfc822Header {
	19	var $date = '',
	20	$subject = '',
	21	$from = array(),
	22	$sender = '',
	23	$reply_to = array(),
	24	$to = array(),
	25	$cc = array(),
	26	$bcc = array(),
	27	$in_reply_to = '',
	28	$message_id = '',
340d67c2	29	$references = '',
19d470aa	30	$mime = false,
	31	$content_type = '',
	32	$disposition = '',
	33	$xmailer = '',
	34	$priority = 3,
	35	$dnt = '',
f1232547	36	$encoding = '',
19d470aa	37	$mlist = array(),
	38	$more_headers = array(); /* only needed for constructing headers
	39	in smtp.php */
	40	function parseHeader($hdr) {
	41	if (is_array($hdr)) {
	42	$hdr = implode('', $hdr);
	43	}
19d470aa	44	/* First we unfold the header */
	45	$hdr = trim(str_replace(array("\r\n\t", "\r\n "),array('', ''), $hdr));
	46
	47	/* Now we can make a new header array with */
	48	/* each element representing a headerline */
	49	$hdr = explode("\r\n" , $hdr);
	50	foreach ($hdr as $line) {
	51	$pos = strpos($line, ':');
	52	if ($pos > 0) {
	53	$field = substr($line, 0, $pos);
340d67c2	54	if (!strstr($field,' ')) { /* valid field */
	55	$value = trim(substr($line, $pos+1));
	56	$this->parseField($field, $value);
	57	}
19d470aa	58	}
	59	}
	60	if ($this->content_type == '') {
	61	$this->parseContentType('text/plain; charset=us-ascii');
	62	}
	63	}
	64
	65	function stripComments($value) {
	66	$result = '';
19d470aa	67	$cnt = strlen($value);
	68	for ($i = 0; $i < $cnt; ++$i) {
	69	switch ($value{$i}) {
	70	case '"':
	71	$result .= '"';
	72	while ((++$i < $cnt) && ($value{$i} != '"')) {
	73	if ($value{$i} == '\\') {
	74	$result .= '\\';
	75	++$i;
	76	}
	77	$result .= $value{$i};
	78	}
	79	$result .= $value{$i};
	80	break;
	81	case '(':
	82	$depth = 1;
	83	while (($depth > 0) && (++$i < $cnt)) {
	84	switch($value{$i}) {
	85	case '\\':
	86	++$i;
	87	break;
	88	case '(':
	89	++$depth;
	90	break;
	91	case ')':
	92	--$depth;
	93	break;
	94	default:
	95	break;
	96	}
	97	}
	98	break;
	99	default:
	100	$result .= $value{$i};
	101	break;
	102	}
	103	}
	104	return $result;
	105	}
	106
	107	function parseField($field, $value) {
	108	$field = strtolower($field);
	109	switch($field) {
	110	case 'date':
340d67c2	111	$value = $this->stripComments($value);
19d470aa	112	$d = strtr($value, array(' ' => ' '));
	113	$d = explode(' ', $d);
	114	$this->date = getTimeStamp($d);
	115	break;
	116	case 'subject':
	117	$this->subject = $value;
	118	break;
	119	case 'from':
	120	$this->from = $this->parseAddress($value,true);
	121	break;
	122	case 'sender':
	123	$this->sender = $this->parseAddress($value);
	124	break;
	125	case 'reply-to':
	126	$this->reply_to = $this->parseAddress($value, true);
	127	break;
	128	case 'to':
	129	$this->to = $this->parseAddress($value, true);
	130	break;
	131	case 'cc':
	132	$this->cc = $this->parseAddress($value, true);
	133	break;
	134	case 'bcc':
	135	$this->bcc = $this->parseAddress($value, true);
	136	break;
	137	case 'in-reply-to':
	138	$this->in_reply_to = $value;
	139	break;
	140	case 'message-id':
340d67c2	141	$value = $this->stripComments($value);
19d470aa	142	$this->message_id = $value;
19d470aa	143	break;
340d67c2	144	case 'references':
	145	$value = $this->stripComments($value);
	146	$this->references = $value;
	147	break;
	148	case 'x-confirm-reading-to':
	149	case 'return-receipt-to':
19d470aa	150	case 'disposition-notification-to':
340d67c2	151	$value = $this->stripComments($value);
19d470aa	152	$this->dnt = $this->parseAddress($value);
	153	break;
	154	case 'mime-version':
340d67c2	155	$value = $this->stripComments($value);
19d470aa	156	$value = str_replace(' ', '', $value);
	157	$this->mime = ($value == '1.0' ? true : $this->mime);
	158	break;
	159	case 'content-type':
340d67c2	160	$value = $this->stripComments($value);
19d470aa	161	$this->parseContentType($value);
	162	break;
	163	case 'content-disposition':
340d67c2	164	$value = $this->stripComments($value);
19d470aa	165	$this->parseDisposition($value);
	166	break;
	167	case 'user-agent':
	168	case 'x-mailer':
340d67c2	169	$this->xmailer = $value;
19d470aa	170	break;
	171	case 'x-priority':
	172	$this->priority = $value;
	173	break;
	174	case 'list-post':
340d67c2	175	$value = $this->stripComments($value);
19d470aa	176	$this->mlist('post', $value);
	177	break;
	178	case 'list-reply':
340d67c2	179	$value = $this->stripComments($value);
19d470aa	180	$this->mlist('reply', $value);
	181	break;
	182	case 'list-subscribe':
340d67c2	183	$value = $this->stripComments($value);
19d470aa	184	$this->mlist('subscribe', $value);
	185	break;
	186	case 'list-unsubscribe':
340d67c2	187	$value = $this->stripComments($value);
19d470aa	188	$this->mlist('unsubscribe', $value);
	189	break;
	190	case 'list-archive':
340d67c2	191	$value = $this->stripComments($value);
19d470aa	192	$this->mlist('archive', $value);
	193	break;
	194	case 'list-owner':
340d67c2	195	$value = $this->stripComments($value);
19d470aa	196	$this->mlist('owner', $value);
	197	break;
	198	case 'list-help':
340d67c2	199	$value = $this->stripComments($value);
19d470aa	200	$this->mlist('help', $value);
19d470aa	201	break;
ba4d5a32	202	case 'list-id':
	203	$value = $this->stripComments($value);
	204	$this->mlist('id', $value);
	205	break;
19d470aa	206	default:
	207	break;
	208	}
	209	}
14882b16	210
	211	function getAddressTokens($address) {
	212	$aTokens = array();
	213	$aAddress = array();
14882b16	214	$aSpecials = array('(' ,'<' ,',' ,';' ,':');
	215	$aReplace = array(' (',' <',' ,',' ;',' :');
	216	$address = str_replace($aSpecials,$aReplace,$address);
55243181	217	$iCnt = strlen($address);
14882b16	218	$i = 0;
	219	while ($i < $iCnt) {
	220	$cChar = $address{$i};
	221	switch($cChar)
	222	{
	223	case '<':
	224	$iEnd = strpos($address,'>',$i+1);
	225	if (!$iEnd) {
	226	$sToken = substr($address,$i);
	227	$i = $iCnt;
	228	} else {
	229	$sToken = substr($address,$i,$iEnd - $i +1);
	230	$i = $iEnd;
	231	}
	232	$sToken = str_replace($aReplace, $aSpecials,$sToken);
	233	$aTokens[] = $sToken;
	234	break;
	235	case '"':
	236	$iEnd = strpos($address,$cChar,$i+1);
	237	if (!$iEnd) {
	238	$sToken = substr($address,$i);
	239	$i = $iCnt;
	240	} else {
	241	// also remove the surrounding quotes
	242	$sToken = substr($address,$i+1,$iEnd - $i -1);
	243	$i = $iEnd;
	244	}
	245	$sToken = str_replace($aReplace, $aSpecials,$sToken);
72956ab6	246	if ($sToken) $aTokens[] = $sToken;
14882b16	247	break;
	248	case '(':
	249	$iEnd = strpos($address,')',$i);
	250	if (!$iEnd) {
	251	$sToken = substr($address,$i);
	252	$i = $iCnt;
	253	} else {
55243181	254	$iDepth = 1;
	255	$iComment = $i;
	256	while (($iDepth > 0) && (++$iComment < $iCnt)) {
	257	$cCharComment = $address{$iComment};
	258	switch($cCharComment) {
	259	case '\\':
	260	++$iComment;
	261	break;
	262	case '(':
	263	++$iDepth;
	264	break;
	265	case ')':
	266	--$iDepth;
	267	break;
	268	default:
	269	break;
	270	}
	271	}
	272	if ($iDepth == 0) {
	273	$sToken = substr($address,$i,$iComment - $i +1);
	274	$i = $iComment;
	275	} else {
	276	$sToken = substr($address,$i,$iEnd - $i + 1);
	277	$i = $iEnd;
	278	}
14882b16	279	}
	280	$sToken = str_replace($aReplace, $aSpecials,$sToken);
	281	$aTokens[] = $sToken;
	282	break;
	283	case ',':
	284	case ';':
	285	case ';':
	286	case ' ':
	287	$aTokens[] = $cChar;
	288	break;
	289	default:
	290	$iEnd = strpos($address,' ',$i+1);
	291	if ($iEnd) {
	292	$sToken = trim(substr($address,$i,$iEnd - $i));
	293	$i = $iEnd-1;
	294	} else {
	295	$sToken = trim(substr($address,$i));
	296	$i = $iCnt;
	297	}
	298	if ($sToken) $aTokens[] = $sToken;
	299	}
	300	++$i;
	301	}
	302	return $aTokens;
	303	}
	304	function createAddressObject(&$aStack,&$aComment,&$sEmail,$sGroup='') {
	305	if (!$sEmail) {
	306	while (count($aStack) && !$sEmail) {
	307	$sEmail = trim(array_pop($aStack));
	308	}
	309	}
	310	if (count($aStack)) {
	311	$sPersonal = trim(implode('',$aStack));
	312	} else {
	313	$sPersonal = '';
	314	}
	315	if (!$sPersonal && count($aComment)) {
	316	$sComment = trim(implode(' ',$aComment));
	317	$sPersonal .= $sComment;
	318	}
	319	$oAddr =& new AddressStructure();
	320	if ($sPersonal && substr($sPersonal,0,2) == '=?') {
	321	$oAddr->personal = encodeHeader($sPersonal);
	322	} else {
	323	$oAddr->personal = $sPersonal;
	324	}
	325	$oAddr->group = $sGroup;
	326	$iPosAt = strpos($sEmail,'@');
	327	if ($iPosAt) {
	328	$oAddr->mailbox = substr($sEmail, 0, $iPosAt);
	329	$oAddr->host = substr($sEmail, $iPosAt+1);
	330	} else {
	331	$oAddr->mailbox = $sEmail;
	332	$oAddr->host = false;
	333	}
	334	$oAddr->group = $sGroup;
	335	$sEmail = '';
	336	$aStack = $aComment = array();
	337	return $oAddr;
	338	}
	339
e74ba378	340	/*
	341	* parseAddress: recursive function for parsing address strings and store
	342	* them in an address stucture object.
	343	* input: $address = string
	344	* $ar = boolean (return array instead of only the
	345	* first element)
14882b16	346	* $addr_ar = array with parsed addresses // obsolete
14882b16	347	* $group = string // obsolete
e74ba378	348	* $host = string (default domainname in case of
	349	* addresses without a domainname)
	350	* $lookup = callback function (for lookup address
	351	* strings which are probably nicks
	352	* (without @ ) )
	353	* output: array with addressstructure objects or only one
	354	* address_structure object.
340d67c2	355	* personal name: encoded: =?charset?Q\|B?string?=
	356	* quoted: "string"
	357	* normal: string
	358	* email : <mailbox@host>
	359	* : mailbox@host
	360	* This function is also used for validating addresses returned from compose
14882b16	361	* That's also the reason that the function became a little bit huge
e74ba378	362	*/
340d67c2	363
14882b16	364	function parseAddress($address,$ar=false,$aAddress=array(),$sGroup='',$sHost='',$lookup=false) {
	365	$aTokens = $this->getAddressTokens($address);
	366	$sPersonal = $sEmail = $sComment = $sGroup = '';
	367	$aStack = $aComment = array();
	368	foreach ($aTokens as $sToken) {
	369	$cChar = $sToken{0};
	370	switch ($cChar)
340d67c2	371	{
340d67c2	372	case '=':
14882b16	373	case '"':
	374	case ' ':
	375	$aStack[] = $sToken;
340d67c2	376	break;
14882b16	377	case '(':
14882b16	378	$aComment[] = substr($sToken,1,-1);
340d67c2	379	break;
3fcadedb	380	case ';':
14882b16	381	if ($sGroup) {
	382	$oAddr = end($aAddress);
	383	if ($oAddr && $oAddr->group == $sGroup) {
	384	$aAddress[] = $this->createAddressObject($aStack,$aComment,$sEmail,$sGroup);
340d67c2	385	} else {
14882b16	386	/* group is empty */
14882b16	387	$aAddress[] = $this->createAddressObject(array(),array(),$sGroup,'');
19d470aa	388	}
14882b16	389	$sGroup = '';
	390	$aStack = $aComment = array();
	391	break;
340d67c2	392	}
14882b16	393	case ',':
	394	$aAddress[] = $this->createAddressObject($aStack,$aComment,$sEmail,$sGroup);
	395	break;
	396	case ':':
	397	$sGroup = implode(' ',$aStack); break;
	398	$aStack = array();
	399	break;
	400	case '<':
	401	$sEmail = trim(substr($sToken,1,-1));
	402	break;
	403	case '>':
	404	/* skip */
	405	break;
	406	default: $aStack[] = $sToken; break;
19d470aa	407	}
19d470aa	408	}
14882b16	409	/* now do the action again for the last address */
	410	$aAddress[] = $this->createAddressObject($aStack,$aComment,$sEmail);
	411	/* try to lookup the addresses in case of invalid email addresses */
	412	$aProcessedAddress = array();
	413	foreach ($aAddress as $oAddr) {
	414	$aAddrBookAddress = array();
	415	if (!$oAddr->host) {
	416	$grouplookup = false;
340d67c2	417	if ($lookup) {
14882b16	418	$aAddr = call_user_func_array($lookup,array($oAddr->mailbox));
	419	if (isset($aAddr['email'])) {
	420	if (strpos($aAddr['email'],',')) {
	421	$grouplookup = true;
	422	$aAddrBookAddress = $this->parseAddress($aAddr['email'],true);
	423	} else {
	424	$iPosAt = strpos($aAddr['email'], '@');
	425	$oAddr->mailbox = substr($aAddr['email'], 0, $iPosAt);
	426	$oAddr->host = substr($aAddr['email'], $iPosAt+1);
	427	if (isset($aAddr['name'])) {
	428	$oAddr->personal = $aAddr['name'];
	429	} else {
	430	$oAddr->personal = encodeHeader($sPersonal);
	431	}
	432	}
	433	}
340d67c2	434	}
14882b16	435	if (!$grouplookup && !$oAddr->mailbox) {
	436	$oAddr->mailbox = trim($sEmail);
	437	if ($sHost && $oAddr->mailbox) {
	438	$oAddr->host = $sHost;
340d67c2	439	}
340d67c2	440	}
14882b16	441	}
	442	if (!$aAddrBookAddress && $oAddr->mailbox) {
	443	$aProcessedAddress[] = $oAddr;
	444	} else {
	445	$aProcessedAddress = array_merge($aProcessedAddress,$aAddrBookAddress);
	446	}
340d67c2	447	}
14882b16	448	if ($ar) {
14882b16	449	return $aProcessedAddress;
19d470aa	450	} else {
14882b16	451	return $aProcessedAddress[0];
19d470aa	452	}
14882b16	453	}
19d470aa	454
	455	function parseContentType($value) {
	456	$pos = strpos($value, ';');
	457	$props = '';
	458	if ($pos > 0) {
	459	$type = trim(substr($value, 0, $pos));
38d6fba7	460	$props = trim(substr($value, $pos+1));
19d470aa	461	} else {
	462	$type = $value;
	463	}
	464	$content_type = new ContentType($type);
	465	if ($props) {
	466	$properties = $this->parseProperties($props);
	467	if (!isset($properties['charset'])) {
	468	$properties['charset'] = 'us-ascii';
	469	}
	470	$content_type->properties = $this->parseProperties($props);
	471	}
	472	$this->content_type = $content_type;
	473	}
	474
	475	function parseProperties($value) {
	476	$propArray = explode(';', $value);
	477	$propResultArray = array();
	478	foreach ($propArray as $prop) {
	479	$prop = trim($prop);
	480	$pos = strpos($prop, '=');
	481	if ($pos > 0) {
	482	$key = trim(substr($prop, 0, $pos));
	483	$val = trim(substr($prop, $pos+1));
	484	if ($val{0} == '"') {
	485	$val = substr($val, 1, -1);
	486	}
	487	$propResultArray[$key] = $val;
	488	}
	489	}
	490	return $propResultArray;
	491	}
	492
	493	function parseDisposition($value) {
	494	$pos = strpos($value, ';');
	495	$props = '';
	496	if ($pos > 0) {
	497	$name = trim(substr($value, 0, $pos));
fc9269ec	498	$props = trim(substr($value, $pos+1));
19d470aa	499	} else {
	500	$name = $value;
	501	}
	502	$props_a = $this->parseProperties($props);
	503	$disp = new Disposition($name);
	504	$disp->properties = $props_a;
	505	$this->disposition = $disp;
	506	}
	507
	508	function mlist($field, $value) {
	509	$res_a = array();
	510	$value_a = explode(',', $value);
	511	foreach ($value_a as $val) {
	512	$val = trim($val);
	513	if ($val{0} == '<') {
	514	$val = substr($val, 1, -1);
	515	}
	516	if (substr($val, 0, 7) == 'mailto:') {
	517	$res_a['mailto'] = substr($val, 7);
	518	} else {
	519	$res_a['href'] = $val;
	520	}
	521	}
	522	$this->mlist[$field] = $res_a;
	523	}
	524
	525	/*
	526	* function to get the addres strings out of the header.
	527	* Arguments: string or array of strings !
	528	* example1: header->getAddr_s('to').
	529	* example2: header->getAddr_s(array('to', 'cc', 'bcc'))
	530	*/
2c9ecd11	531	function getAddr_s($arr, $separator = ',',$encoded=false) {
19d470aa	532	$s = '';
	533
	534	if (is_array($arr)) {
	535	foreach($arr as $arg) {
2c9ecd11	536	if ($this->getAddr_s($arg, $separator, $encoded)) {
19d470aa	537	$s .= $separator . $result;
	538	}
	539	}
	540	$s = ($s ? substr($s, 2) : $s);
	541	} else {
2c9ecd11	542	$addr = $this->{$arr};
19d470aa	543	if (is_array($addr)) {
	544	foreach ($addr as $addr_o) {
	545	if (is_object($addr_o)) {
2c9ecd11	546	if ($encoded) {
	547	$s .= $addr_o->getEncodedAddress() . $separator;
	548	} else {
	549	$s .= $addr_o->getAddress() . $separator;
	550	}
19d470aa	551	}
	552	}
	553	$s = substr($s, 0, -strlen($separator));
	554	} else {
	555	if (is_object($addr)) {
2c9ecd11	556	if ($encoded) {
	557	$s .= $addr->getEncodedAddress();
	558	} else {
	559	$s .= $addr->getAddress();
	560	}
19d470aa	561	}
	562	}
	563	}
	564	return $s;
	565	}
	566
	567	function getAddr_a($arg, $excl_arr = array(), $arr = array()) {
	568	if (is_array($arg)) {
	569	foreach($arg as $argument) {
	570	$arr = $this->getAddr_a($argument, $excl_arr, $arr);
	571	}
	572	} else {
340d67c2	573	$addr = $this->{$arg};
19d470aa	574	if (is_array($addr)) {
	575	foreach ($addr as $next_addr) {
	576	if (is_object($next_addr)) {
	577	if (isset($next_addr->host) && ($next_addr->host != '')) {
	578	$email = $next_addr->mailbox . '@' . $next_addr->host;
	579	} else {
	580	$email = $next_addr->mailbox;
	581	}
	582	$email = strtolower($email);
	583	if ($email && !isset($arr[$email]) && !isset($excl_arr[$email])) {
	584	$arr[$email] = $next_addr->personal;
	585	}
	586	}
	587	}
	588	} else {
	589	if (is_object($addr)) {
	590	$email = $addr->mailbox;
	591	$email .= (isset($addr->host) ? '@' . $addr->host : '');
	592	$email = strtolower($email);
	593	if ($email && !isset($arr[$email]) && !isset($excl_arr[$email])) {
	594	$arr[$email] = $addr->personal;
	595	}
	596	}
	597	}
	598	}
	599	return $arr;
	600	}
d0719411	601
d0719411	602	function findAddress($address, $recurs = false) {
340d67c2	603	$result = false;
d0719411	604	if (is_array($address)) {
340d67c2	605	$i=0;
d0719411	606	foreach($address as $argument) {
d0719411	607	$match = $this->findAddress($argument, true);
340d67c2	608	$last = end($match);
	609	if ($match[1]) {
	610	return $i;
	611	} else {
	612	if (count($match[0]) && !$result) {
	613	$result = $i;
	614	}
	615	}
	616	++$i;
	617	}
	618	} else {
	619	if (!is_array($this->cc)) $this->cc = array();
	620	$srch_addr = $this->parseAddress($address);
	621	$results = array();
	622	foreach ($this->to as $to) {
	623	if ($to->host == $srch_addr->host) {
	624	if ($to->mailbox == $srch_addr->mailbox) {
	625	$results[] = $srch_addr;
	626	if ($to->personal == $srch_addr->personal) {
	627	if ($recurs) {
	628	return array($results, true);
	629	} else {
	630	return true;
	631	}
	632	}
	633	}
	634	}
d0719411	635	}
340d67c2	636	foreach ($this->cc as $cc) {
	637	if ($cc->host == $srch_addr->host) {
	638	if ($cc->mailbox == $srch_addr->mailbox) {
	639	$results[] = $srch_addr;
	640	if ($cc->personal == $srch_addr->personal) {
	641	if ($recurs) {
	642	return array($results, true);
	643	} else {
	644	return true;
	645	}
	646	}
	647	}
	648	}
	649	}
	650	if ($recurs) {
	651	return array($results, false);
	652	} elseif (count($result)) {
	653	return true;
	654	} else {
	655	return false;
	656	}
	657	}
1465f80c	658	//exit;
340d67c2	659	return $result;
d0719411	660	}
19d470aa	661
	662	function getContentType($type0, $type1) {
	663	$type0 = $this->content_type->type0;
	664	$type1 = $this->content_type->type1;
	665	return $this->content_type->properties;
	666	}
	667	}
	668
	669	?>