[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;
        }
    }
    /*
     * 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
     *                      $group   = string
     *                      $host    = string (default domainname in case of 
     *                                 addresses without a domainname)
     *                      $lookup  = callback function (for lookup address
     *                                 strings which are probably nicks
     *                                 (without @ ) ) 
     *               output: array with addressstructure objects or only one
     *                       address_structure object.
     *  personal name: encoded: =?charset?Q|B?string?=
     *                 quoted:  "string"
     *                 normal:  string
     *  email        : <mailbox@host>
     *               : mailbox@host
     *  This function is also used for validating addresses returned from compose
     *  That's also the reason that the function became a little bit huge and horrible
     *  Todo: Find a way to clean up this mess a bit (Marc Groot Koerkamp)
     */
    function parseAddress
    ($address, $ar=false, $addr_ar = array(), $group = '', $host='',$lookup=false) {
        $pos = 0;
        $name = $addr = $comment = $is_encoded = '';
        /* 
         * in case of 8 bit addresses some how <SPACE> is represented as 
         * NON BRAKING SPACE
         * This only happens when we validate addresses from the compose form.
         *
         * Note: when other charsets have dificulties with characters 
         * =,;:<>()"<SPACE>
         * then we should find out the value for those characters ans replace
         * them by proper ASCII values before we start parsing.
         * 
         */
        $address = str_replace("\240",' ',$address);
        
        $address = trim($address);
        $j = strlen($address);

        while ($pos < $j) {
            $char = $address{$pos};
            switch ($char)
            {
            case '=':
                /* get the encoded personal name */
                if (preg_match('/^(=\?([^?]*)\?(Q|B)\?([^?]*)\?=)(.*)/Ui',substr($address,$pos),$reg)) {
                    $name .= $reg[1];
                    $pos += strlen($reg[1]);
                } else {
                    ++$pos;
                }
                $addr_start = $pos;
                $is_encoded = true;
                break;
            case '"': /* get the personal name */
                $start_encoded = $pos;
                ++$pos;
                if ($address{$pos} == '"') {
                    ++$pos;
                } else {
                    $personal_start = $personal_end = $pos;
                    while ($pos < $j) {
                        $personal_end = strpos($address,'"',$pos);
                        if (($personal_end-2)>0 && (substr($address,$personal_end-2,2) === '\\"' ||
                            substr($address,$personal_end-2,2) === '\\\\')) {
                            $pos = $personal_end+1;
                        } else {
                            $name .= substr($address,$personal_start,$personal_end-$personal_start);
                            break;
                        }
                    }
                    if ($personal_end) {
                        $pos = $personal_end+1;
                    } else {
                        $pos = $j;
                    }
                }
                $addr_start = $pos;
                break;
            case '<':  /* get email address */
                $addr_start = $pos;
                $addr_end = strpos($address,'>',$addr_start);
                $addr = substr($address,$addr_start+1,$addr_end-$addr_start-1);
                if ($addr_end) {
                    $pos = $addr_end+1;
                } else {
                    $addr = substr($address,$addr_start+1);
                    $pos = $j;
                }
                break;
            case '(':  /* rip off comments */
                $addr_start = $pos;
                $pos = strpos($address,')');
                if ($pos !== false) {
                    $comment = substr($address, $addr_start+1,($pos-$addr_start-1));
                    $address_start = substr($address, 0, $addr_start);
                    $address_end   = substr($address, $pos + 1);
                    $address       = $address_start . $address_end;
                }
                $j = strlen($address);
                $pos = $addr_start + 1;
                break;
            case ',':  /* we reached a delimiter */
                if (!$name && !$addr) {
                    $addr = substr($address, 0, $pos);
                } else if (!$addr) {
                    $addr = trim(substr($address, $addr_start, $pos));
                } else if ($name == '') {
                    $name = trim(substr($address, 0, $addr_start));
                }                
                $at = strpos($addr, '@');
                $addr_structure = new AddressStructure();
                if (!$name && $comment) $name = $comment;
                if (!$is_encoded) {
                    $addr_structure->personal = encodeHeader($name);
                } else {
                    $addr_structure->personal = $name;
                }
                $is_encoded = false;
                $addr_structure->group = $group;
                $grouplookup = false;
                if ($at) {
                    $addr_structure->mailbox = substr($addr, 0, $at);
                    $addr_structure->host = substr($addr, $at+1);
                } else {
                    /* if lookup function */
                    if ($lookup) {
                        $aAddr = call_user_func_array($lookup,array($addr));
                        if (isset($aAddr['email'])) {
                            if (strpos($aAddr['email'],',')) {
                                $grouplookup = true;
                                $addr_ar = $this->parseAddress($aAddr['email'], $ar, $addr_ar, $group, $host,$lookup);
                            } else {
                                $at = strpos($aAddr['email'], '@');
                                $addr_structure->mailbox = substr($aAddr['email'], 0, $at);
                                $addr_structure->host = substr($aAddr['email'], $at+1);
                                if (isset($aAddr['name'])) {
                                    $addr_structure->personal = $aAddr['name'];
                                } else {
                                    $addr_structure->personal = encodeHeader($addr);
                                }
                            }
                        }
                    }
                    if (!$grouplookup && !$addr_structure->mailbox) {
                        $addr_structure->mailbox = trim($addr);
                        if ($host) {
                            $addr_structure->host = $host;
                        }
                    }
                }
                $address = trim(substr($address, $pos+1));
                $j = strlen($address);
                $pos = 0;
                $name = '';
                $addr = '';
                if (!$grouplookup) {
                    $addr_ar[] = $addr_structure;
                }
                break;
            case ':':  /* process the group addresses */
                /* group marker */
                $group = substr($address, 0, $pos);
                $address = substr($address, $pos+1);
                $result = $this->parseAddress($address, $ar, $addr_ar, $group, $lookup);
                $addr_ar = $result[0];
                $pos = $result[1];
                $address = substr($address, $pos++);
                $j = strlen($address);
                $group = '';
                break;
            case ';':
                if ($group) {
                    $address = substr($address, 0, $pos - 1);
                }
                ++$pos;
                break;
            case ' ':
                ++$pos;
                break;
            default:
                /* 
                 * this happens in the folowing situations :
                 * 1: unquoted personal name
                 * 2: emailaddress without < and >
                 * 3: unquoted personal name from compose that should be encoded.
                 * if it's a personal name then an emailaddress should follow
                 * the personal name may not have ',' inside it
                 * If it's a emailaddress then the personal name is not set.
                 * we should look for the delimiter ',' or a SPACE
                 */
                /* check for emailaddress */
                $i_space = strpos($address,' ',$pos);
                $i_del = strpos($address,',',$pos);
                if ($i_space || $i_del) {
                    if ($i_del) {
                        $address_part = substr($address,$pos,$i_del-$pos);
                    } else {
                        $address_part = substr($address,$pos);
                    }
                    if ($i = strpos($address_part,'@')) {
                        /* an email address is following */
                        if (($i+$pos) < $i_space) {
                            $addr_start = $pos;
                            if ($i_space < $i_del && $i_del) {
                                if ($i_space) {
                                    $addr = substr($address,$pos,$i_space-$pos);
                                    $pos = $i_space;
                                } else {
                                    $addr = substr($address,$pos);
                                    $pos = $j;
                                }
                            } else {
                                if ($i_del) {
                                    $addr = substr($address,$pos,$i_del-$pos);
                                    $pos = $i_del;
                                } else {
                                    $addr = substr($address,$pos);
                                    $pos = $j;
                                }
                            }
                        } else {
                            if ($i_space) {
                                $name .= substr($address,$pos,$i_space-$pos) .  ' ';
                                $addr_start = $i_space+1;
                                $pos = $i_space+1;
                            } else {
                                $addr = substr($address,$pos,$i_del-$pos);
                                $addr_start = $pos;
                                if ($i_del) {
                                    $pos = $i_del;
                                } else {
                                    $pos = $j;
                                }
                            }
                        }
                    } else {
                        /* email address without domain name, could be an alias */
                        $addr_start = $pos;
                        $addr = $address_part;
                        $pos = strlen($address_part) + $pos;
                    }
                } else {
                    $addr = substr($address,$pos);
                    $addr_start = $pos;
                    $pos = $j;
                }
                break;
            }
        }
        if (!$name && !$addr) {
            $addr = substr($address, 0, $pos);
        } else if (!$addr) {
            $addr = trim(substr($address, $addr_start, $pos));
        } else if ($name == '') {
            $name = trim(substr($address, 0, $addr_start));
        }
        if (!$name && $comment) {
            $name = $comment;
        } else if ($name && $comment) {
            $name = $name .' ('.$comment.')';
        }
        $at = strpos($addr, '@');
        $addr_structure = new AddressStructure();
        $addr_structure->group = $group;
        if ($at) {
            $addr_structure->mailbox = trim(substr($addr, 0, $at));
            $addr_structure->host = trim(substr($addr, $at+1));
        } else {
            /* if lookup function */
            if ($lookup) {
                $aAddr = call_user_func_array($lookup,array($addr));
                if (isset($aAddr['email'])) {
                    if (strpos($aAddr['email'],',')) {
                        return $this->parseAddress($aAddr['email'], $ar, $addr_ar, $group, $host,$lookup);
                    } else {
                        $at = strpos($aAddr['email'], '@');
                        $addr_structure->mailbox = substr($aAddr['email'], 0, $at);
                        $addr_structure->host = substr($aAddr['email'], $at+1);
                        if (isset($aAddr['name']) && $aAddr['name']) {
                            $name = $aAddr['name'];
                        } else {
                            $name = $addr;
                        }
                    }
                }
            }
            if (!$addr_structure->mailbox) {
                $addr_structure->mailbox = trim($addr);
                if ($host) {
                    $addr_structure->host = $host;
                }
            }
        }
        $name = trim($name);
        if (!$is_encoded && !$group) {
            $name = encodeHeader($name);
        }
        if ($group && $addr == '') { /* no addresses found in group */
            $name = $group;
            $addr_structure->personal = $name;
            $addr_ar[] = $addr_structure;
            return (array($addr_ar,$pos+1 ));
        } elseif ($group) {
            $addr_structure->personal = $name;
            $addr_ar[] = $addr_structure;
            return (array($addr_ar,$pos+1 ));
        } else {
            $addr_structure->personal = $name;
            if ($name || $addr) {
                $addr_ar[] = $addr_structure;
            }
        }
        if ($ar) {
            return ($addr_ar);
        }
        return ($addr_ar[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	}
	44
	45	/* First we unfold the header */
	46	$hdr = trim(str_replace(array("\r\n\t", "\r\n "),array('', ''), $hdr));
	47
	48	/* Now we can make a new header array with */
	49	/* each element representing a headerline */
	50	$hdr = explode("\r\n" , $hdr);
	51	foreach ($hdr as $line) {
	52	$pos = strpos($line, ':');
	53	if ($pos > 0) {
	54	$field = substr($line, 0, $pos);
340d67c2	55	if (!strstr($field,' ')) { /* valid field */
	56	$value = trim(substr($line, $pos+1));
	57	$this->parseField($field, $value);
	58	}
19d470aa	59	}
	60	}
	61	if ($this->content_type == '') {
	62	$this->parseContentType('text/plain; charset=us-ascii');
	63	}
	64	}
	65
	66	function stripComments($value) {
	67	$result = '';
19d470aa	68	$cnt = strlen($value);
	69	for ($i = 0; $i < $cnt; ++$i) {
	70	switch ($value{$i}) {
	71	case '"':
	72	$result .= '"';
	73	while ((++$i < $cnt) && ($value{$i} != '"')) {
	74	if ($value{$i} == '\\') {
	75	$result .= '\\';
	76	++$i;
	77	}
	78	$result .= $value{$i};
	79	}
	80	$result .= $value{$i};
	81	break;
	82	case '(':
	83	$depth = 1;
	84	while (($depth > 0) && (++$i < $cnt)) {
	85	switch($value{$i}) {
	86	case '\\':
	87	++$i;
	88	break;
	89	case '(':
	90	++$depth;
	91	break;
	92	case ')':
	93	--$depth;
	94	break;
	95	default:
	96	break;
	97	}
	98	}
	99	break;
	100	default:
	101	$result .= $value{$i};
	102	break;
	103	}
	104	}
	105	return $result;
	106	}
	107
	108	function parseField($field, $value) {
	109	$field = strtolower($field);
	110	switch($field) {
	111	case 'date':
340d67c2	112	$value = $this->stripComments($value);
19d470aa	113	$d = strtr($value, array(' ' => ' '));
	114	$d = explode(' ', $d);
	115	$this->date = getTimeStamp($d);
	116	break;
	117	case 'subject':
	118	$this->subject = $value;
	119	break;
	120	case 'from':
	121	$this->from = $this->parseAddress($value,true);
	122	break;
	123	case 'sender':
	124	$this->sender = $this->parseAddress($value);
	125	break;
	126	case 'reply-to':
	127	$this->reply_to = $this->parseAddress($value, true);
	128	break;
	129	case 'to':
	130	$this->to = $this->parseAddress($value, true);
	131	break;
	132	case 'cc':
	133	$this->cc = $this->parseAddress($value, true);
	134	break;
	135	case 'bcc':
	136	$this->bcc = $this->parseAddress($value, true);
	137	break;
	138	case 'in-reply-to':
	139	$this->in_reply_to = $value;
	140	break;
	141	case 'message-id':
340d67c2	142	$value = $this->stripComments($value);
19d470aa	143	$this->message_id = $value;
19d470aa	144	break;
340d67c2	145	case 'references':
	146	$value = $this->stripComments($value);
	147	$this->references = $value;
	148	break;
	149	case 'x-confirm-reading-to':
	150	case 'return-receipt-to':
19d470aa	151	case 'disposition-notification-to':
340d67c2	152	$value = $this->stripComments($value);
19d470aa	153	$this->dnt = $this->parseAddress($value);
	154	break;
	155	case 'mime-version':
340d67c2	156	$value = $this->stripComments($value);
19d470aa	157	$value = str_replace(' ', '', $value);
	158	$this->mime = ($value == '1.0' ? true : $this->mime);
	159	break;
	160	case 'content-type':
340d67c2	161	$value = $this->stripComments($value);
19d470aa	162	$this->parseContentType($value);
	163	break;
	164	case 'content-disposition':
340d67c2	165	$value = $this->stripComments($value);
19d470aa	166	$this->parseDisposition($value);
	167	break;
	168	case 'user-agent':
	169	case 'x-mailer':
340d67c2	170	$this->xmailer = $value;
19d470aa	171	break;
	172	case 'x-priority':
	173	$this->priority = $value;
	174	break;
	175	case 'list-post':
340d67c2	176	$value = $this->stripComments($value);
19d470aa	177	$this->mlist('post', $value);
	178	break;
	179	case 'list-reply':
340d67c2	180	$value = $this->stripComments($value);
19d470aa	181	$this->mlist('reply', $value);
	182	break;
	183	case 'list-subscribe':
340d67c2	184	$value = $this->stripComments($value);
19d470aa	185	$this->mlist('subscribe', $value);
	186	break;
	187	case 'list-unsubscribe':
340d67c2	188	$value = $this->stripComments($value);
19d470aa	189	$this->mlist('unsubscribe', $value);
	190	break;
	191	case 'list-archive':
340d67c2	192	$value = $this->stripComments($value);
19d470aa	193	$this->mlist('archive', $value);
	194	break;
	195	case 'list-owner':
340d67c2	196	$value = $this->stripComments($value);
19d470aa	197	$this->mlist('owner', $value);
	198	break;
	199	case 'list-help':
340d67c2	200	$value = $this->stripComments($value);
19d470aa	201	$this->mlist('help', $value);
19d470aa	202	break;
ba4d5a32	203	case 'list-id':
	204	$value = $this->stripComments($value);
	205	$this->mlist('id', $value);
	206	break;
19d470aa	207	default:
	208	break;
	209	}
	210	}
e74ba378	211	/*
	212	* parseAddress: recursive function for parsing address strings and store
	213	* them in an address stucture object.
	214	* input: $address = string
	215	* $ar = boolean (return array instead of only the
	216	* first element)
	217	* $addr_ar = array with parsed addresses
	218	* $group = string
	219	* $host = string (default domainname in case of
	220	* addresses without a domainname)
	221	* $lookup = callback function (for lookup address
	222	* strings which are probably nicks
	223	* (without @ ) )
	224	* output: array with addressstructure objects or only one
	225	* address_structure object.
340d67c2	226	* personal name: encoded: =?charset?Q\|B?string?=
	227	* quoted: "string"
	228	* normal: string
	229	* email : <mailbox@host>
	230	* : mailbox@host
	231	* This function is also used for validating addresses returned from compose
	232	* That's also the reason that the function became a little bit huge and horrible
	233	* Todo: Find a way to clean up this mess a bit (Marc Groot Koerkamp)
e74ba378	234	*/
19d470aa	235	function parseAddress
e74ba378	236	($address, $ar=false, $addr_ar = array(), $group = '', $host='',$lookup=false) {
19d470aa	237	$pos = 0;
340d67c2	238	$name = $addr = $comment = $is_encoded = '';
	239	/*
	240	* in case of 8 bit addresses some how <SPACE> is represented as
	241	* NON BRAKING SPACE
	242	* This only happens when we validate addresses from the compose form.
	243	*
	244	* Note: when other charsets have dificulties with characters
	245	* =,;:<>()"<SPACE>
	246	* then we should find out the value for those characters ans replace
	247	* them by proper ASCII values before we start parsing.
	248	*
	249	*/
	250	$address = str_replace("\240",' ',$address);
	251
	252	$address = trim($address);
19d470aa	253	$j = strlen($address);
340d67c2	254
19d470aa	255	while ($pos < $j) {
340d67c2	256	$char = $address{$pos};
	257	switch ($char)
	258	{
	259	case '=':
	260	/* get the encoded personal name */
	261	if (preg_match('/^(=\?([^?])\?(Q\|B)\?([^?])\?=)(.*)/Ui',substr($address,$pos),$reg)) {
	262	$name .= $reg[1];
	263	$pos += strlen($reg[1]);
cdafbbc5	264	} else {
cdafbbc5	265	++$pos;
340d67c2	266	}
340d67c2	267	$addr_start = $pos;
	268	$is_encoded = true;
	269	break;
	270	case '"': /* get the personal name */
	271	$start_encoded = $pos;
	272	++$pos;
	273	if ($address{$pos} == '"') {
	274	++$pos;
	275	} else {
	276	$personal_start = $personal_end = $pos;
	277	while ($pos < $j) {
	278	$personal_end = strpos($address,'"',$pos);
	279	if (($personal_end-2)>0 && (substr($address,$personal_end-2,2) === '\\"' \|\|
	280	substr($address,$personal_end-2,2) === '\\\\')) {
	281	$pos = $personal_end+1;
	282	} else {
	283	$name .= substr($address,$personal_start,$personal_end-$personal_start);
	284	break;
	285	}
	286	}
	287	if ($personal_end) {
	288	$pos = $personal_end+1;
19d470aa	289	} else {
340d67c2	290	$pos = $j;
	291	}
	292	}
	293	$addr_start = $pos;
	294	break;
	295	case '<': /* get email address */
	296	$addr_start = $pos;
	297	$addr_end = strpos($address,'>',$addr_start);
	298	$addr = substr($address,$addr_start+1,$addr_end-$addr_start-1);
	299	if ($addr_end) {
	300	$pos = $addr_end+1;
	301	} else {
	302	$addr = substr($address,$addr_start+1);
	303	$pos = $j;
	304	}
	305	break;
	306	case '(': /* rip off comments */
	307	$addr_start = $pos;
	308	$pos = strpos($address,')');
	309	if ($pos !== false) {
	310	$comment = substr($address, $addr_start+1,($pos-$addr_start-1));
	311	$address_start = substr($address, 0, $addr_start);
	312	$address_end = substr($address, $pos + 1);
	313	$address = $address_start . $address_end;
	314	}
	315	$j = strlen($address);
	316	$pos = $addr_start + 1;
	317	break;
	318	case ',': /* we reached a delimiter */
	319	if (!$name && !$addr) {
	320	$addr = substr($address, 0, $pos);
	321	} else if (!$addr) {
	322	$addr = trim(substr($address, $addr_start, $pos));
	323	} else if ($name == '') {
	324	$name = trim(substr($address, 0, $addr_start));
	325	}
	326	$at = strpos($addr, '@');
	327	$addr_structure = new AddressStructure();
	328	if (!$name && $comment) $name = $comment;
	329	if (!$is_encoded) {
	330	$addr_structure->personal = encodeHeader($name);
	331	} else {
	332	$addr_structure->personal = $name;
	333	}
	334	$is_encoded = false;
	335	$addr_structure->group = $group;
c3bfbc87	336	$grouplookup = false;
340d67c2	337	if ($at) {
	338	$addr_structure->mailbox = substr($addr, 0, $at);
	339	$addr_structure->host = substr($addr, $at+1);
	340	} else {
	341	/* if lookup function */
	342	if ($lookup) {
	343	$aAddr = call_user_func_array($lookup,array($addr));
	344	if (isset($aAddr['email'])) {
c3bfbc87	345	if (strpos($aAddr['email'],',')) {
	346	$grouplookup = true;
	347	$addr_ar = $this->parseAddress($aAddr['email'], $ar, $addr_ar, $group, $host,$lookup);
340d67c2	348	} else {
c3bfbc87	349	$at = strpos($aAddr['email'], '@');
	350	$addr_structure->mailbox = substr($aAddr['email'], 0, $at);
	351	$addr_structure->host = substr($aAddr['email'], $at+1);
	352	if (isset($aAddr['name'])) {
	353	$addr_structure->personal = $aAddr['name'];
	354	} else {
	355	$addr_structure->personal = encodeHeader($addr);
	356	}
19d470aa	357	}
19d470aa	358	}
19d470aa	359	}
c3bfbc87	360	if (!$grouplookup && !$addr_structure->mailbox) {
340d67c2	361	$addr_structure->mailbox = trim($addr);
	362	if ($host) {
	363	$addr_structure->host = $host;
	364	}
19d470aa	365	}
340d67c2	366	}
	367	$address = trim(substr($address, $pos+1));
	368	$j = strlen($address);
	369	$pos = 0;
	370	$name = '';
	371	$addr = '';
c3bfbc87	372	if (!$grouplookup) {
	373	$addr_ar[] = $addr_structure;
	374	}
340d67c2	375	break;
	376	case ':': /* process the group addresses */
	377	/* group marker */
	378	$group = substr($address, 0, $pos);
	379	$address = substr($address, $pos+1);
c3bfbc87	380	$result = $this->parseAddress($address, $ar, $addr_ar, $group, $lookup);
340d67c2	381	$addr_ar = $result[0];
	382	$pos = $result[1];
	383	$address = substr($address, $pos++);
	384	$j = strlen($address);
	385	$group = '';
	386	break;
	387	case ';':
	388	if ($group) {
	389	$address = substr($address, 0, $pos - 1);
	390	}
	391	++$pos;
	392	break;
	393	case ' ':
	394	++$pos;
	395	break;
	396	default:
	397	/*
	398	* this happens in the folowing situations :
	399	* 1: unquoted personal name
	400	* 2: emailaddress without < and >
	401	* 3: unquoted personal name from compose that should be encoded.
	402	* if it's a personal name then an emailaddress should follow
	403	* the personal name may not have ',' inside it
	404	* If it's a emailaddress then the personal name is not set.
	405	* we should look for the delimiter ',' or a SPACE
	406	*/
	407	/* check for emailaddress */
	408	$i_space = strpos($address,' ',$pos);
	409	$i_del = strpos($address,',',$pos);
	410	if ($i_space \|\| $i_del) {
	411	if ($i_del) {
	412	$address_part = substr($address,$pos,$i_del-$pos);
19d470aa	413	} else {
340d67c2	414	$address_part = substr($address,$pos);
19d470aa	415	}
340d67c2	416	if ($i = strpos($address_part,'@')) {
	417	/* an email address is following */
	418	if (($i+$pos) < $i_space) {
	419	$addr_start = $pos;
	420	if ($i_space < $i_del && $i_del) {
	421	if ($i_space) {
	422	$addr = substr($address,$pos,$i_space-$pos);
	423	$pos = $i_space;
	424	} else {
	425	$addr = substr($address,$pos);
	426	$pos = $j;
	427	}
	428	} else {
	429	if ($i_del) {
	430	$addr = substr($address,$pos,$i_del-$pos);
	431	$pos = $i_del;
	432	} else {
	433	$addr = substr($address,$pos);
	434	$pos = $j;
	435	}
	436	}
	437	} else {
	438	if ($i_space) {
	439	$name .= substr($address,$pos,$i_space-$pos) . ' ';
	440	$addr_start = $i_space+1;
	441	$pos = $i_space+1;
	442	} else {
	443	$addr = substr($address,$pos,$i_del-$pos);
	444	$addr_start = $pos;
	445	if ($i_del) {
	446	$pos = $i_del;
	447	} else {
	448	$pos = $j;
	449	}
	450	}
	451	}
	452	} else {
	453	/* email address without domain name, could be an alias */
	454	$addr_start = $pos;
	455	$addr = $address_part;
	456	$pos = strlen($address_part) + $pos;
19d470aa	457	}
340d67c2	458	} else {
	459	$addr = substr($address,$pos);
	460	$addr_start = $pos;
	461	$pos = $j;
	462	}
	463	break;
19d470aa	464	}
19d470aa	465	}
340d67c2	466	if (!$name && !$addr) {
19d470aa	467	$addr = substr($address, 0, $pos);
340d67c2	468	} else if (!$addr) {
340d67c2	469	$addr = trim(substr($address, $addr_start, $pos));
19d470aa	470	} else if ($name == '') {
	471	$name = trim(substr($address, 0, $addr_start));
	472	}
cdafbbc5	473	if (!$name && $comment) {
	474	$name = $comment;
	475	} else if ($name && $comment) {
	476	$name = $name .' ('.$comment.')';
	477	}
19d470aa	478	$at = strpos($addr, '@');
	479	$addr_structure = new AddressStructure();
	480	$addr_structure->group = $group;
	481	if ($at) {
	482	$addr_structure->mailbox = trim(substr($addr, 0, $at));
	483	$addr_structure->host = trim(substr($addr, $at+1));
	484	} else {
340d67c2	485	/* if lookup function */
	486	if ($lookup) {
	487	$aAddr = call_user_func_array($lookup,array($addr));
	488	if (isset($aAddr['email'])) {
c3bfbc87	489	if (strpos($aAddr['email'],',')) {
c3bfbc87	490	return $this->parseAddress($aAddr['email'], $ar, $addr_ar, $group, $host,$lookup);
340d67c2	491	} else {
c3bfbc87	492	$at = strpos($aAddr['email'], '@');
	493	$addr_structure->mailbox = substr($aAddr['email'], 0, $at);
	494	$addr_structure->host = substr($aAddr['email'], $at+1);
	495	if (isset($aAddr['name']) && $aAddr['name']) {
	496	$name = $aAddr['name'];
	497	} else {
	498	$name = $addr;
	499	}
340d67c2	500	}
	501	}
	502	}
	503	if (!$addr_structure->mailbox) {
e74ba378	504	$addr_structure->mailbox = trim($addr);
340d67c2	505	if ($host) {
	506	$addr_structure->host = $host;
	507	}
	508	}
	509	}
	510	$name = trim($name);
	511	if (!$is_encoded && !$group) {
	512	$name = encodeHeader($name);
19d470aa	513	}
19d470aa	514	if ($group && $addr == '') { /* no addresses found in group */
340d67c2	515	$name = $group;
19d470aa	516	$addr_structure->personal = $name;
19d470aa	517	$addr_ar[] = $addr_structure;
085103f0	518	return (array($addr_ar,$pos+1 ));
340d67c2	519	} elseif ($group) {
085103f0	520	$addr_structure->personal = $name;
085103f0	521	$addr_ar[] = $addr_structure;
340d67c2	522	return (array($addr_ar,$pos+1 ));
19d470aa	523	} else {
	524	$addr_structure->personal = $name;
	525	if ($name \|\| $addr) {
	526	$addr_ar[] = $addr_structure;
	527	}
	528	}
	529	if ($ar) {
	530	return ($addr_ar);
	531	}
	532	return ($addr_ar[0]);
	533	}
	534
	535	function parseContentType($value) {
	536	$pos = strpos($value, ';');
	537	$props = '';
	538	if ($pos > 0) {
	539	$type = trim(substr($value, 0, $pos));
38d6fba7	540	$props = trim(substr($value, $pos+1));
19d470aa	541	} else {
	542	$type = $value;
	543	}
	544	$content_type = new ContentType($type);
	545	if ($props) {
	546	$properties = $this->parseProperties($props);
	547	if (!isset($properties['charset'])) {
	548	$properties['charset'] = 'us-ascii';
	549	}
	550	$content_type->properties = $this->parseProperties($props);
	551	}
	552	$this->content_type = $content_type;
	553	}
	554
	555	function parseProperties($value) {
	556	$propArray = explode(';', $value);
	557	$propResultArray = array();
	558	foreach ($propArray as $prop) {
	559	$prop = trim($prop);
	560	$pos = strpos($prop, '=');
	561	if ($pos > 0) {
	562	$key = trim(substr($prop, 0, $pos));
	563	$val = trim(substr($prop, $pos+1));
	564	if ($val{0} == '"') {
	565	$val = substr($val, 1, -1);
	566	}
	567	$propResultArray[$key] = $val;
	568	}
	569	}
	570	return $propResultArray;
	571	}
	572
	573	function parseDisposition($value) {
	574	$pos = strpos($value, ';');
	575	$props = '';
	576	if ($pos > 0) {
	577	$name = trim(substr($value, 0, $pos));
fc9269ec	578	$props = trim(substr($value, $pos+1));
19d470aa	579	} else {
	580	$name = $value;
	581	}
	582	$props_a = $this->parseProperties($props);
	583	$disp = new Disposition($name);
	584	$disp->properties = $props_a;
	585	$this->disposition = $disp;
	586	}
	587
	588	function mlist($field, $value) {
	589	$res_a = array();
	590	$value_a = explode(',', $value);
	591	foreach ($value_a as $val) {
	592	$val = trim($val);
	593	if ($val{0} == '<') {
	594	$val = substr($val, 1, -1);
	595	}
	596	if (substr($val, 0, 7) == 'mailto:') {
	597	$res_a['mailto'] = substr($val, 7);
	598	} else {
	599	$res_a['href'] = $val;
	600	}
	601	}
	602	$this->mlist[$field] = $res_a;
	603	}
	604
	605	/*
	606	* function to get the addres strings out of the header.
	607	* Arguments: string or array of strings !
	608	* example1: header->getAddr_s('to').
	609	* example2: header->getAddr_s(array('to', 'cc', 'bcc'))
	610	*/
2c9ecd11	611	function getAddr_s($arr, $separator = ',',$encoded=false) {
19d470aa	612	$s = '';
	613
	614	if (is_array($arr)) {
	615	foreach($arr as $arg) {
2c9ecd11	616	if ($this->getAddr_s($arg, $separator, $encoded)) {
19d470aa	617	$s .= $separator . $result;
	618	}
	619	}
	620	$s = ($s ? substr($s, 2) : $s);
	621	} else {
2c9ecd11	622	$addr = $this->{$arr};
19d470aa	623	if (is_array($addr)) {
	624	foreach ($addr as $addr_o) {
	625	if (is_object($addr_o)) {
2c9ecd11	626	if ($encoded) {
	627	$s .= $addr_o->getEncodedAddress() . $separator;
	628	} else {
	629	$s .= $addr_o->getAddress() . $separator;
	630	}
19d470aa	631	}
	632	}
	633	$s = substr($s, 0, -strlen($separator));
	634	} else {
	635	if (is_object($addr)) {
2c9ecd11	636	if ($encoded) {
	637	$s .= $addr->getEncodedAddress();
	638	} else {
	639	$s .= $addr->getAddress();
	640	}
19d470aa	641	}
	642	}
	643	}
	644	return $s;
	645	}
	646
	647	function getAddr_a($arg, $excl_arr = array(), $arr = array()) {
	648	if (is_array($arg)) {
	649	foreach($arg as $argument) {
	650	$arr = $this->getAddr_a($argument, $excl_arr, $arr);
	651	}
	652	} else {
340d67c2	653	$addr = $this->{$arg};
19d470aa	654	if (is_array($addr)) {
	655	foreach ($addr as $next_addr) {
	656	if (is_object($next_addr)) {
	657	if (isset($next_addr->host) && ($next_addr->host != '')) {
	658	$email = $next_addr->mailbox . '@' . $next_addr->host;
	659	} else {
	660	$email = $next_addr->mailbox;
	661	}
	662	$email = strtolower($email);
	663	if ($email && !isset($arr[$email]) && !isset($excl_arr[$email])) {
	664	$arr[$email] = $next_addr->personal;
	665	}
	666	}
	667	}
	668	} else {
	669	if (is_object($addr)) {
	670	$email = $addr->mailbox;
	671	$email .= (isset($addr->host) ? '@' . $addr->host : '');
	672	$email = strtolower($email);
	673	if ($email && !isset($arr[$email]) && !isset($excl_arr[$email])) {
	674	$arr[$email] = $addr->personal;
	675	}
	676	}
	677	}
	678	}
	679	return $arr;
	680	}
d0719411	681
d0719411	682	function findAddress($address, $recurs = false) {
340d67c2	683	$result = false;
d0719411	684	if (is_array($address)) {
340d67c2	685	$i=0;
d0719411	686	foreach($address as $argument) {
d0719411	687	$match = $this->findAddress($argument, true);
340d67c2	688	$last = end($match);
	689	if ($match[1]) {
	690	return $i;
	691	} else {
	692	if (count($match[0]) && !$result) {
	693	$result = $i;
	694	}
	695	}
	696	++$i;
	697	}
	698	} else {
	699	if (!is_array($this->cc)) $this->cc = array();
	700	$srch_addr = $this->parseAddress($address);
	701	$results = array();
	702	foreach ($this->to as $to) {
	703	if ($to->host == $srch_addr->host) {
	704	if ($to->mailbox == $srch_addr->mailbox) {
	705	$results[] = $srch_addr;
	706	if ($to->personal == $srch_addr->personal) {
	707	if ($recurs) {
	708	return array($results, true);
	709	} else {
	710	return true;
	711	}
	712	}
	713	}
	714	}
d0719411	715	}
340d67c2	716	foreach ($this->cc as $cc) {
	717	if ($cc->host == $srch_addr->host) {
	718	if ($cc->mailbox == $srch_addr->mailbox) {
	719	$results[] = $srch_addr;
	720	if ($cc->personal == $srch_addr->personal) {
	721	if ($recurs) {
	722	return array($results, true);
	723	} else {
	724	return true;
	725	}
	726	}
	727	}
	728	}
	729	}
	730	if ($recurs) {
	731	return array($results, false);
	732	} elseif (count($result)) {
	733	return true;
	734	} else {
	735	return false;
	736	}
	737	}
1465f80c	738	//exit;
340d67c2	739	return $result;
d0719411	740	}
19d470aa	741
	742	function getContentType($type0, $type1) {
	743	$type0 = $this->content_type->type0;
	744	$type1 = $this->content_type->type1;
	745	return $this->content_type->properties;
	746	}
	747	}
	748
	749	?>