[squirrelmail.git] / class / deliver / Deliver.class.php

<?php

/**
 * Deliver.class.php
 *
 * Copyright (c) 1999-2003 The SquirrelMail Project Team
 * Licensed under the GNU GPL. For full terms see the file COPYING.
 *
 * This contains all the functions needed to send messages through
 * a delivery backend.
 *
 * $Id$
 */

class Deliver {

    function mail($message, $stream=false) {
        $rfc822_header = $message->rfc822_header;
        if (count($message->entities)) {
            $boundary = $this->mimeBoundary();
            $rfc822_header->content_type->properties['boundary']='"'.$boundary.'"';
        } else {
            $boundary='';
        }
        $raw_length = 0;
        $reply_rfc822_header = (isset($message->reply_rfc822_header) 
                             ? $message->reply_rfc822_header : '');
        $header = $this->prepareRFC822_Header($rfc822_header, $reply_rfc822_header, $raw_length);

        if ($stream) {
            $this->preWriteToStream($header);
            $this->writeToStream($stream, $header);
        }
        $this->writeBody($message, $stream, $raw_length, $boundary);
        return $raw_length;
    }

    function writeBody($message, $stream, &$length_raw, $boundary='') {
        if ($boundary && !$message->rfc822_header) {
            $s = '--'.$boundary."\r\n";
            $s .= $this->prepareMIME_Header($message, $boundary);
            $length_raw += strlen($s);
            if ($stream) {
                $this->preWriteToStream($s);
                $this->writeToStream($stream, $s);
            }
        }
        $this->writeBodyPart($message, $stream, $length_raw);
        $boundary_depth = substr_count($message->entity_id,'.');
        if ($boundary_depth) {
            $boundary .= '_part'.$boundary_depth;
        }
        $last = false;
        for ($i=0, $entCount=count($message->entities);$i<$entCount;$i++) {
            $msg = $this->writeBody($message->entities[$i], $stream, $length_raw, $boundary);
            if ($i == $entCount-1) $last = true;
        }
        if ($boundary && $last) {
            $s = "--".$boundary."--\r\n\r\n";
            $length_raw += strlen($s);
            if ($stream) {
                $this->preWriteToStream($s);
                $this->writeToStream($stream, $s);
            }
        }
    }

    function writeBodyPart($message, $stream, &$length) {
        if ($message->mime_header) {
            $type0 = $message->mime_header->type0;
        } else {
            $type0 = $message->rfc822_header->content_type->type0;
        }

        $body_part_trailing = $last = '';
        switch ($type0)
        {
        case 'text':
        case 'message':
            if ($message->body_part) {
                $body_part = $message->body_part;
                $length += $this->clean_crlf($body_part);
                if ($stream) {
                    $this->preWriteToStream($body_part);     
                    $this->writeToStream($stream, $body_part);
                }
                $last = $body_part;
            } elseif ($message->att_local_name) {
                $filename = $message->att_local_name;
                $file = fopen ($filename, 'rb');
                while ($body_part = fgets($file, 4096)) {
                    $length += $this->clean_crlf($body_part);
                    if ($stream) {
                        $this->preWriteToStream($body_part);
                        $this->writeToStream($stream, $body_part);
                    }
                    $last = $body_part;
                }
                fclose($file);
            }
            break;
        default:
            if ($message->body_part) {
                $body_part = $message->body_part;
                $length += $this->clean_crlf($body_part);
                if ($stream) {
                    $this->writeToStream($stream, $body_part);
                }
            } elseif ($message->att_local_name) {
                $filename = $message->att_local_name;
                $file = fopen ($filename, 'rb');
                $encoded = '';
                while ($tmp = fread($file, 570)) {
                   $body_part = chunk_split(base64_encode($tmp));
                    $length += $this->clean_crlf($body_part);
                    if ($stream) {
                        $this->writeToStream($stream, $body_part);
                    }
                }
                fclose($file);
            }
            break;
        }
        $body_part_trailing = '';
        if ($last && substr($last,-1) != "\n") {
            $body_part_trailing = "\r\n";
        }
        if ($body_part_trailing) {
            $length += strlen($body_part_trailing);
            if ($stream) {
                $this->preWriteToStream($body_part_trailing);
                $this->writeToStream($stream, $body_part_trailing);
            }
        }
    }

    function clean_crlf(&$s) {
        $s = str_replace("\r\n", "\n", $s);
        $s = str_replace("\r", "\n", $s);
        $s = str_replace("\n", "\r\n", $s);
        return strlen($s);
    }

    function strip_crlf(&$s) {
        $s = str_replace("\r\n ", '', $s);
        $s = str_replace("\r", '', $s);
        $s = str_replace("\n", '', $s);
    }

    function preWriteToStream(&$s) {
    }

    function writeToStream($stream, $data) {
        fputs($stream, $data);
    }

    function initStream($message, $length=0, $host='', $port='', $user='', $pass='') {
        return $stream;
    }
    
    function getBcc() {
        return false;
    }

    function prepareMIME_Header($message, $boundary) {
        $mime_header = $message->mime_header;
        $rn="\r\n";
        $header = array();

        $contenttype = 'Content-Type: '. $mime_header->type0 .'/'.
                        $mime_header->type1;
        if (count($message->entities)) {
            $contenttype .= ";\r\n " . 'boundary="'.$boundary.'"';
        }
        if (isset($mime_header->parameters['name'])) {
            $contenttype .= '; name="'.
            encodeHeader($mime_header->parameters['name']). '"';
        }
        if (isset($mime_header->parameters['charset'])) {
            $charset = $mime_header->parameters['charset'];
            $contenttype .= '; charset="'.
            encodeHeader($charset). '"';
        }

        $header[] = $contenttype . $rn;
        if ($mime_header->description) {
            $header[] .= 'Content-Description: ' . $mime_header->description . $rn;
        }
        if ($mime_header->encoding) {
            $encoding = $mime_header->encoding;
            $header[] .= 'Content-Transfer-Encoding: ' . $mime_header->encoding . $rn;
        } else {
            if ($mime_header->type0 == 'text' || $mime_header->type0 == 'message') {
                $header[] .= 'Content-Transfer-Encoding: 8bit' .  $rn;
            } else {
                $header[] .= 'Content-Transfer-Encoding: base64' .  $rn;
            }
        }
        if ($mime_header->id) {
            $header[] .= 'Content-ID: ' . $mime_header->id . $rn;
        }
        if ($mime_header->disposition) {
            $disposition = $mime_header->disposition;
            $contentdisp = 'Content-Disposition: ' . $disposition->name;
            if ($disposition->getProperty('filename')) {
                $contentdisp .= '; filename="'.
                encodeHeader($disposition->getProperty('filename')). '"';
            }
            $header[] = $contentdisp . $rn;       
        }
        if ($mime_header->md5) {
            $header[] .= 'Content-MD5: ' . $mime_header->md5 . $rn;
        }
        if ($mime_header->language) {
            $header[] .= 'Content-Language: ' . $mime_header->language . $rn;
        }

        $cnt = count($header);
        $hdr_s = '';
        for ($i = 0 ; $i < $cnt ; $i++)    {
            $hdr_s .= $this->foldLine($header[$i], 78,str_pad('',4));
        }
        $header = $hdr_s;
        $header .= $rn; /* One blank line to separate mimeheader and body-entity */
        return $header;
    }

    function prepareRFC822_Header($rfc822_header, $reply_rfc822_header, &$raw_length) {
        global $domain, $version, $username;

        /* if server var SERVER_NAME not available, use $domain */
        if(!sqGetGlobalVar('SERVER_NAME', $SERVER_NAME, SQ_SERVER)) {
            $SERVER_NAME = $domain;
        }

        sqGetGlobalVar('REMOTE_ADDR', $REMOTE_ADDR, SQ_SERVER);
        sqGetGlobalVar('REMOTE_PORT', $REMOTE_PORT, SQ_SERVER);
        sqGetGlobalVar('REMOTE_HOST', $REMOTE_HOST, SQ_SERVER);
        sqGetGlobalVar('HTTP_VIA',    $HTTP_VIA,    SQ_SERVER);
        sqGetGlobalVar('HTTP_X_FORWARDED_FOR', $HTTP_X_FORWARDED_FOR, SQ_SERVER);

        $rn = "\r\n";

        /* This creates an RFC 822 date */
        $date = date('D, j M Y H:i:s ', mktime()) . $this->timezone();
        /* Create a message-id */
        $message_id = '<' . $REMOTE_PORT . '.' . $REMOTE_ADDR . '.';
        $message_id .= time() . '.squirrel@' . $SERVER_NAME .'>';
        /* Make an RFC822 Received: line */
        if (isset($REMOTE_HOST)) {
            $received_from = "$REMOTE_HOST ([$REMOTE_ADDR])";
        } else {
            $received_from = $REMOTE_ADDR;
        }
        if (isset($HTTP_VIA) || isset ($HTTP_X_FORWARDED_FOR)) {
            if (!isset($HTTP_X_FORWARDED_FOR) || $HTTP_X_FORWARDED_FOR == '') {
                $HTTP_X_FORWARDED_FOR = 'unknown';
            }
            $received_from .= " (proxying for $HTTP_X_FORWARDED_FOR)";
        }
        $header = array();
        $header[] = "Received: from $received_from" . $rn;
        $header[] = "        (SquirrelMail authenticated user $username)" . $rn;
        $header[] = "        by $SERVER_NAME with HTTP;" . $rn;
        $header[] = "        $date" . $rn;
        /* Insert the rest of the header fields */
        $header[] = 'Message-ID: '. $message_id . $rn;
        if ($reply_rfc822_header->message_id) {
            $rep_message_id = $reply_rfc822_header->message_id;
        //        $this->strip_crlf($message_id);
            $header[] = 'In-Reply-To: '.$rep_message_id . $rn;
            $references = $this->calculate_references($reply_rfc822_header);
            $header[] = 'References: '.$references . $rn;
        }
        $header[] = "Date: $date" . $rn;
        $header[] = 'Subject: '.encodeHeader($rfc822_header->subject) . $rn;
        $header[] = 'From: '. $rfc822_header->getAddr_s('from',',',true) . $rn;
        /* RFC2822 if from contains more then 1 address */    
        if (count($rfc822_header->from) > 1) {
            $header[] = 'Sender: '. $rfc822_header->getAddr_s('sender',',',true) . $rn;
        }
        if (count($rfc822_header->to)) {
            $header[] = 'To: '. $rfc822_header->getAddr_s('to',',',true) . $rn;
        }
        if (count($rfc822_header->cc)) {
            $header[] = 'Cc: '. $rfc822_header->getAddr_s('cc',',',true) . $rn;
        }
        if (count($rfc822_header->reply_to)) {
            $header[] = 'Reply-To: '. $rfc822_header->getAddr_s('reply_to',',',true) . $rn;
        }
        /* Sendmail should return true. Default = false */
        $bcc = $this->getBcc();
        if (count($rfc822_header->bcc)) {
            $s = 'Bcc: '. $rfc822_header->getAddr_s('bcc',',',true) . $rn;
            if (!$bcc) {
                $s = $this->foldLine($s, 78, str_pad('',4));
                $raw_length += strlen($s);
            } else {
                $header[] = $s;
            }
        }
        /* Identify SquirrelMail */    
        $header[] = 'User-Agent: SquirrelMail/' . $version . $rn; 
        /* Do the MIME-stuff */
        $header[] = 'MIME-Version: 1.0' . $rn;
        $contenttype = 'Content-Type: '. $rfc822_header->content_type->type0 .'/'.
                                         $rfc822_header->content_type->type1;
        if (count($rfc822_header->content_type->properties)) {
            foreach ($rfc822_header->content_type->properties as $k => $v) {
                if ($k && $v) {
                    $contenttype .= ';' .$k.'='.$v; 
                }
            }
        }
        $header[] = $contenttype . $rn;
        if ($encoding = $rfc822_header->encoding) {
            $header[] .= 'Content-Transfer-Encoding: ' . $encoding .  $rn;
        }        
        if ($rfc822_header->dnt) {
            $dnt = $rfc822_header->getAddr_s('dnt'); 
            /* Pegasus Mail */
            $header[] = 'X-Confirm-Reading-To: '.$dnt. $rn;
            /* RFC 2298 */
            $header[] = 'Disposition-Notification-To: '.$dnt. $rn;
        }
        if ($rfc822_header->priority) {
            $prio = $rfc822_header->priority;
            $header[] = 'X-Priority: '.$prio. $rn;
            switch($prio)
            {
            case 1: $header[] = 'Importance: High'. $rn; break;
            case 3: $header[] = 'Importance: Normal'. $rn; break;
            case 5: $header[] = 'Importance: Low'. $rn; break;
            default: break;
            }
        }
        /* Insert headers from the $more_headers array */    
        if(count($rfc822_header->more_headers)) {
            reset($rfc822_header->more_headers);
            foreach ($rfc822_header->more_headers as $k => $v) {
                $header[] = $k.': '.$v .$rn;
            }
        }
        $cnt = count($header);
        $hdr_s = '';

        for ($i = 0 ; $i < $cnt ; $i++) {
            $sKey = substr($header[$i],0,strpos($header[$i],':'));
            switch ($sKey)
            {
            case 'Message-ID':
            case 'In-Reply_To':
                $hdr_s .= $header[$i];
                break;
            case 'References':
                $sRefs = substr($header[$i],12);
                $aRefs = explode(' ',$sRefs);
                $sLine = 'References:';
                foreach ($aRefs as $sReference) {
                    if (strlen($sLine)+strlen($sReference) >76) {
                        $hdr_s .= $sLine;
                        $sLine = $rn . '    ' . $sReference;
                    } else {
                        $sLine .= ' '. $sReference;
                    }
                }
                $hdr_s .= $sLine;
                break;
            default: $hdr_s .= $this->foldLine($header[$i], 78, str_pad('',4)); break;
            }
        }
        $header = $hdr_s;
        $header .= $rn; /* One blank line to separate header and body */
        $raw_length += strlen($header);
        return $header;
    }

    /*
    * function for cleanly folding of headerlines
    */
    function foldLine($line, $length, $pre='') {
        $line = substr($line,0, -2);
        $length -= 2; /* do not fold between \r and \n */
        $cnt = strlen($line);
        if ($cnt > $length) { /* try folding */
            $fold_string = "\r\n " . $pre;
            $bFirstFold = false;
            $aFoldLine = array();
            while (strlen($line) > $length) {
                $fold = false;
                /* handle encoded parts */
                if (preg_match('/(=\?([^?]*)\?(Q|B)\?([^?]*)\?=)(\s+|.*)/Ui',$line,$regs)) {
                    $fold_tmp = $regs[1];
                    if (!trim($regs[5])) {
                        $fold_tmp .= $regs[5];
                    }
                    $iPosEnc = strpos($line,$fold_tmp);
                    $iLengthEnc = strlen($fold_tmp);
                    $iPosEncEnd = $iPosEnc+$iLengthEnc;
                    if ($iPosEnc < $length && (($iPosEncEnd) > $length)) {
                        $fold = true;
                        /* fold just before the start of the encoded string */
                        if ($iPosEnc) {
                            $aFoldLine[] = substr($line,0,$iPosEnc);
                        }
                        $line = substr($line,$iPosEnc);
                        if (!$bFirstFold) {
                            $bFirstFold = true;
                            $length -= strlen($fold_string);
                        }
                        if ($iLengthEnc > $length) { /* place the encoded
                            string on a separate line and do not fold inside it*/
                            /* minimize foldstring */
                            $fold_string = "\r\n ";
                            $aFoldLine[] = substr($line,0,$iLengthEnc);
                            $line = substr($line,$iLengthEnc);
                        } 
                    } else if ($iPosEnc < $length) { /* the encoded string fits into the foldlength */
                        /*remainder */
                        $sLineRem = substr($line,$iPosEncEnd,$length - $iPosEncEnd);
                        if (preg_match('/^(=\?([^?]*)\?(Q|B)\?([^?]*)\?=)(.*)/Ui',$sLineRem) || !preg_match('/[=,;\s]/',$sLineRem)) {
                            /*impossible to fold clean in the next part -> fold after the enc string */
                            $aFoldLine[] = substr($line,0,$iPosEncEnd);
                            $line = substr($line,$iPosEncEnd);
                            $fold = true;
                            if (!$bFirstFold) {
                                $bFirstFold = true;
                                $length -= strlen($fold_string);
                            }
                        } 
                    }
                }
                if (!$fold) {
                    $line_tmp = substr($line,0,$length);
                    $iFoldPos = false;
                    /* try to fold at logical places */
                    switch (true)
                    {
                    case ($iFoldPos = strrpos($line_tmp,',')): break;
                    case ($iFoldPos = strrpos($line_tmp,';')): break;
                    case ($iFoldPos = strrpos($line_tmp,' ')): break;
                    case ($iFoldPos = strrpos($line_tmp,'=')): break;
                    default: break;
                    }
                    
                    if (!$iFoldPos) { /* clean folding didn't work */
                        $iFoldPos = $length;
                    }
                    $aFoldLine[] = substr($line,0,$iFoldPos+1);
                    $line = substr($line,$iFoldPos+1);
                    if (!$bFirstFold) {
                        $bFirstFold = true;
                        $length -= strlen($fold_string);
                    }
                }
            }
            /*$reconstruct the line */
            if ($line) {
                $aFoldLine[] = $line;
            }
            $line = implode($fold_string,$aFoldLine);
        }
        return $line."\r\n";
    }

    function mimeBoundary () {
        static $mimeBoundaryString;

        if ( !isset( $mimeBoundaryString ) ||
            $mimeBoundaryString == '') {
            $mimeBoundaryString = '----=_' . date( 'YmdHis' ) . '_' .
            mt_rand( 10000, 99999 );
        }
        return $mimeBoundaryString;
    }

    /* Time offset for correct timezone */
    function timezone () {
        global $invert_time;

        $diff_second = date('Z');
        if ($invert_time) {
            $diff_second = - $diff_second;
        }
        if ($diff_second > 0) {
            $sign = '+';
        } else {
            $sign = '-';
        }
        $diff_second = abs($diff_second);
        $diff_hour = floor ($diff_second / 3600);
        $diff_minute = floor (($diff_second-3600*$diff_hour) / 60);
        $zonename = '('.strftime('%Z').')';
        $result = sprintf ("%s%02d%02d %s", $sign, $diff_hour, $diff_minute, 
                       $zonename);
        return ($result);
    }

    function calculate_references($hdr) {
        $refer = $hdr->references;
        $message_id = $hdr->message_id;
        $in_reply_to = $hdr->in_reply_to;
        if (strlen($refer) > 2) {
            $refer .= ' ' . $message_id;
        } else {
            if ($in_reply_to) {
                $refer .= $in_reply_to . ' ' . $message_id;
            } else {
                $refer .= $message_id;
            }
        }
        trim($refer);
        return $refer;
    }
}
?>
Commit	Line	Data
4960ec8e	1	<?php
4960ec8e	2
69298c28	3	/**
	4	* Deliver.class.php
	5	*
76911253	6	* Copyright (c) 1999-2003 The SquirrelMail Project Team
69298c28	7	* Licensed under the GNU GPL. For full terms see the file COPYING.
	8	*
	9	* This contains all the functions needed to send messages through
	10	* a delivery backend.
	11	*
	12	* $Id$
	13	*/
	14
4960ec8e	15	class Deliver {
4960ec8e	16
59387d1c	17	function mail($message, $stream=false) {
78f39e78	18	$rfc822_header = $message->rfc822_header;
	19	if (count($message->entities)) {
	20	$boundary = $this->mimeBoundary();
	21	$rfc822_header->content_type->properties['boundary']='"'.$boundary.'"';
	22	} else {
	23	$boundary='';
	24	}
	25	$raw_length = 0;
	26	$reply_rfc822_header = (isset($message->reply_rfc822_header)
	27	? $message->reply_rfc822_header : '');
	28	$header = $this->prepareRFC822_Header($rfc822_header, $reply_rfc822_header, $raw_length);
75b14a70	29
78f39e78	30	if ($stream) {
59387d1c	31	$this->preWriteToStream($header);
59387d1c	32	$this->writeToStream($stream, $header);
78f39e78	33	}
	34	$this->writeBody($message, $stream, $raw_length, $boundary);
	35	return $raw_length;
3b53d87f	36	}
78f39e78	37
3b53d87f	38	function writeBody($message, $stream, &$length_raw, $boundary='') {
1274f430	39	if ($boundary && !$message->rfc822_header) {
78f39e78	40	$s = '--'.$boundary."\r\n";
	41	$s .= $this->prepareMIME_Header($message, $boundary);
	42	$length_raw += strlen($s);
	43	if ($stream) {
3b53d87f	44	$this->preWriteToStream($s);
78f39e78	45	$this->writeToStream($stream, $s);
	46	}
	47	}
	48	$this->writeBodyPart($message, $stream, $length_raw);
	49	$boundary_depth = substr_count($message->entity_id,'.');
	50	if ($boundary_depth) {
	51	$boundary .= '_part'.$boundary_depth;
	52	}
	53	$last = false;
	54	for ($i=0, $entCount=count($message->entities);$i<$entCount;$i++) {
	55	$msg = $this->writeBody($message->entities[$i], $stream, $length_raw, $boundary);
	56	if ($i == $entCount-1) $last = true;
	57	}
1274f430	58	if ($boundary && $last) {
78f39e78	59	$s = "--".$boundary."--\r\n\r\n";
	60	$length_raw += strlen($s);
	61	if ($stream) {
3b53d87f	62	$this->preWriteToStream($s);
78f39e78	63	$this->writeToStream($stream, $s);
	64	}
	65	}
3b53d87f	66	}
	67
	68	function writeBodyPart($message, $stream, &$length) {
1274f430	69	if ($message->mime_header) {
78f39e78	70	$type0 = $message->mime_header->type0;
	71	} else {
	72	$type0 = $message->rfc822_header->content_type->type0;
	73	}
	74
	75	$body_part_trailing = $last = '';
	76	switch ($type0)
	77	{
	78	case 'text':
	79	case 'message':
	80	if ($message->body_part) {
	81	$body_part = $message->body_part;
	82	$length += $this->clean_crlf($body_part);
	83	if ($stream) {
	84	$this->preWriteToStream($body_part);
	85	$this->writeToStream($stream, $body_part);
	86	}
	87	$last = $body_part;
	88	} elseif ($message->att_local_name) {
	89	$filename = $message->att_local_name;
	90	$file = fopen ($filename, 'rb');
	91	while ($body_part = fgets($file, 4096)) {
	92	$length += $this->clean_crlf($body_part);
	93	if ($stream) {
	94	$this->preWriteToStream($body_part);
	95	$this->writeToStream($stream, $body_part);
	96	}
	97	$last = $body_part;
	98	}
	99	fclose($file);
	100	}
	101	break;
	102	default:
	103	if ($message->body_part) {
	104	$body_part = $message->body_part;
	105	$length += $this->clean_crlf($body_part);
	106	if ($stream) {
	107	$this->writeToStream($stream, $body_part);
	108	}
	109	} elseif ($message->att_local_name) {
	110	$filename = $message->att_local_name;
	111	$file = fopen ($filename, 'rb');
	112	$encoded = '';
	113	while ($tmp = fread($file, 570)) {
	114	$body_part = chunk_split(base64_encode($tmp));
	115	$length += $this->clean_crlf($body_part);
	116	if ($stream) {
	117	$this->writeToStream($stream, $body_part);
	118	}
	119	}
	120	fclose($file);
3b53d87f	121	}
78f39e78	122	break;
	123	}
	124	$body_part_trailing = '';
	125	if ($last && substr($last,-1) != "\n") {
	126	$body_part_trailing = "\r\n";
	127	}
	128	if ($body_part_trailing) {
	129	$length += strlen($body_part_trailing);
	130	if ($stream) {
	131	$this->preWriteToStream($body_part_trailing);
	132	$this->writeToStream($stream, $body_part_trailing);
	133	}
	134	}
3b53d87f	135	}
78f39e78	136
69298c28	137	function clean_crlf(&$s) {
3b53d87f	138	$s = str_replace("\r\n", "\n", $s);
	139	$s = str_replace("\r", "\n", $s);
	140	$s = str_replace("\n", "\r\n", $s);
78f39e78	141	return strlen($s);
3b53d87f	142	}
78f39e78	143
e4f9307a	144	function strip_crlf(&$s) {
e4f9307a	145	$s = str_replace("\r\n ", '', $s);
78f39e78	146	$s = str_replace("\r", '', $s);
78f39e78	147	$s = str_replace("\n", '', $s);
e4f9307a	148	}
3b53d87f	149
69298c28	150	function preWriteToStream(&$s) {
3b53d87f	151	}
78f39e78	152
3b53d87f	153	function writeToStream($stream, $data) {
78f39e78	154	fputs($stream, $data);
3b53d87f	155	}
78f39e78	156
3b53d87f	157	function initStream($message, $length=0, $host='', $port='', $user='', $pass='') {
78f39e78	158	return $stream;
3b53d87f	159	}
59387d1c	160
0dab3bfb	161	function getBcc() {
78f39e78	162	return false;
59387d1c	163	}
3b53d87f	164
3b53d87f	165	function prepareMIME_Header($message, $boundary) {
78f39e78	166	$mime_header = $message->mime_header;
	167	$rn="\r\n";
	168	$header = array();
1274f430	169
78f39e78	170	$contenttype = 'Content-Type: '. $mime_header->type0 .'/'.
	171	$mime_header->type1;
	172	if (count($message->entities)) {
	173	$contenttype .= ";\r\n " . 'boundary="'.$boundary.'"';
	174	}
	175	if (isset($mime_header->parameters['name'])) {
	176	$contenttype .= '; name="'.
	177	encodeHeader($mime_header->parameters['name']). '"';
	178	}
	179	if (isset($mime_header->parameters['charset'])) {
	180	$charset = $mime_header->parameters['charset'];
	181	$contenttype .= '; charset="'.
	182	encodeHeader($charset). '"';
	183	}
1274f430	184
78f39e78	185	$header[] = $contenttype . $rn;
	186	if ($mime_header->description) {
	187	$header[] .= 'Content-Description: ' . $mime_header->description . $rn;
	188	}
	189	if ($mime_header->encoding) {
	190	$encoding = $mime_header->encoding;
	191	$header[] .= 'Content-Transfer-Encoding: ' . $mime_header->encoding . $rn;
	192	} else {
	193	if ($mime_header->type0 == 'text' \|\| $mime_header->type0 == 'message') {
	194	$header[] .= 'Content-Transfer-Encoding: 8bit' . $rn;
	195	} else {
	196	$header[] .= 'Content-Transfer-Encoding: base64' . $rn;
	197	}
	198	}
	199	if ($mime_header->id) {
	200	$header[] .= 'Content-ID: ' . $mime_header->id . $rn;
	201	}
	202	if ($mime_header->disposition) {
	203	$disposition = $mime_header->disposition;
	204	$contentdisp = 'Content-Disposition: ' . $disposition->name;
	205	if ($disposition->getProperty('filename')) {
	206	$contentdisp .= '; filename="'.
	207	encodeHeader($disposition->getProperty('filename')). '"';
	208	}
	209	$header[] = $contentdisp . $rn;
	210	}
	211	if ($mime_header->md5) {
	212	$header[] .= 'Content-MD5: ' . $mime_header->md5 . $rn;
	213	}
	214	if ($mime_header->language) {
	215	$header[] .= 'Content-Language: ' . $mime_header->language . $rn;
	216	}
4960ec8e	217
78f39e78	218	$cnt = count($header);
	219	$hdr_s = '';
	220	for ($i = 0 ; $i < $cnt ; $i++) {
	221	$hdr_s .= $this->foldLine($header[$i], 78,str_pad('',4));
	222	}
	223	$header = $hdr_s;
	224	$header .= $rn; /* One blank line to separate mimeheader and body-entity */
	225	return $header;
	226	}
4960ec8e	227
75b14a70	228	function prepareRFC822_Header($rfc822_header, $reply_rfc822_header, &$raw_length) {
78f39e78	229	global $domain, $version, $username;
60a46e65	230
78f39e78	231	/* if server var SERVER_NAME not available, use $domain */
60a46e65	232	if(!sqGetGlobalVar('SERVER_NAME', $SERVER_NAME, SQ_SERVER)) {
60a46e65	233	$SERVER_NAME = $domain;
78f39e78	234	}
60a46e65	235
78f39e78	236	sqGetGlobalVar('REMOTE_ADDR', $REMOTE_ADDR, SQ_SERVER);
	237	sqGetGlobalVar('REMOTE_PORT', $REMOTE_PORT, SQ_SERVER);
	238	sqGetGlobalVar('REMOTE_HOST', $REMOTE_HOST, SQ_SERVER);
	239	sqGetGlobalVar('HTTP_VIA', $HTTP_VIA, SQ_SERVER);
	240	sqGetGlobalVar('HTTP_X_FORWARDED_FOR', $HTTP_X_FORWARDED_FOR, SQ_SERVER);
60a46e65	241
78f39e78	242	$rn = "\r\n";
223872cb	243
78f39e78	244	/* This creates an RFC 822 date */
	245	$date = date('D, j M Y H:i:s ', mktime()) . $this->timezone();
	246	/* Create a message-id */
	247	$message_id = '<' . $REMOTE_PORT . '.' . $REMOTE_ADDR . '.';
	248	$message_id .= time() . '.squirrel@' . $SERVER_NAME .'>';
	249	/* Make an RFC822 Received: line */
	250	if (isset($REMOTE_HOST)) {
	251	$received_from = "$REMOTE_HOST ([$REMOTE_ADDR])";
	252	} else {
	253	$received_from = $REMOTE_ADDR;
	254	}
	255	if (isset($HTTP_VIA) \|\| isset ($HTTP_X_FORWARDED_FOR)) {
	256	if (!isset($HTTP_X_FORWARDED_FOR) \|\| $HTTP_X_FORWARDED_FOR == '') {
	257	$HTTP_X_FORWARDED_FOR = 'unknown';
	258	}
	259	$received_from .= " (proxying for $HTTP_X_FORWARDED_FOR)";
	260	}
	261	$header = array();
	262	$header[] = "Received: from $received_from" . $rn;
59387d1c	263	$header[] = " (SquirrelMail authenticated user $username)" . $rn;
59387d1c	264	$header[] = " by $SERVER_NAME with HTTP;" . $rn;
78f39e78	265	$header[] = " $date" . $rn;
59387d1c	266	/* Insert the rest of the header fields */
59387d1c	267	$header[] = 'Message-ID: '. $message_id . $rn;
1274f430	268	if ($reply_rfc822_header->message_id) {
78f39e78	269	$rep_message_id = $reply_rfc822_header->message_id;
	270	// $this->strip_crlf($message_id);
	271	$header[] = 'In-Reply-To: '.$rep_message_id . $rn;
	272	$references = $this->calculate_references($reply_rfc822_header);
	273	$header[] = 'References: '.$references . $rn;
	274	}
	275	$header[] = "Date: $date" . $rn;
59387d1c	276	$header[] = 'Subject: '.encodeHeader($rfc822_header->subject) . $rn;
a1386fbf	277	$header[] = 'From: '. $rfc822_header->getAddr_s('from',',',true) . $rn;
78f39e78	278	/* RFC2822 if from contains more then 1 address */
59387d1c	279	if (count($rfc822_header->from) > 1) {
78f39e78	280	$header[] = 'Sender: '. $rfc822_header->getAddr_s('sender',',',true) . $rn;
	281	}
	282	if (count($rfc822_header->to)) {
	283	$header[] = 'To: '. $rfc822_header->getAddr_s('to',',',true) . $rn;
	284	}
	285	if (count($rfc822_header->cc)) {
	286	$header[] = 'Cc: '. $rfc822_header->getAddr_s('cc',',',true) . $rn;
	287	}
	288	if (count($rfc822_header->reply_to)) {
	289	$header[] = 'Reply-To: '. $rfc822_header->getAddr_s('reply_to',',',true) . $rn;
	290	}
	291	/* Sendmail should return true. Default = false */
	292	$bcc = $this->getBcc();
	293	if (count($rfc822_header->bcc)) {
	294	$s = 'Bcc: '. $rfc822_header->getAddr_s('bcc',',',true) . $rn;
	295	if (!$bcc) {
	296	$s = $this->foldLine($s, 78, str_pad('',4));
	297	$raw_length += strlen($s);
	298	} else {
	299	$header[] = $s;
	300	}
	301	}
	302	/* Identify SquirrelMail */
	303	$header[] = 'User-Agent: SquirrelMail/' . $version . $rn;
	304	/* Do the MIME-stuff */
	305	$header[] = 'MIME-Version: 1.0' . $rn;
	306	$contenttype = 'Content-Type: '. $rfc822_header->content_type->type0 .'/'.
59387d1c	307	$rfc822_header->content_type->type1;
78f39e78	308	if (count($rfc822_header->content_type->properties)) {
	309	foreach ($rfc822_header->content_type->properties as $k => $v) {
	310	if ($k && $v) {
	311	$contenttype .= ';' .$k.'='.$v;
	312	}
	313	}
	314	}
59387d1c	315	$header[] = $contenttype . $rn;
78f39e78	316	if ($encoding = $rfc822_header->encoding) {
bfebbda2	317	$header[] .= 'Content-Transfer-Encoding: ' . $encoding . $rn;
bfebbda2	318	}
59387d1c	319	if ($rfc822_header->dnt) {
78f39e78	320	$dnt = $rfc822_header->getAddr_s('dnt');
	321	/* Pegasus Mail */
	322	$header[] = 'X-Confirm-Reading-To: '.$dnt. $rn;
	323	/* RFC 2298 */
	324	$header[] = 'Disposition-Notification-To: '.$dnt. $rn;
	325	}
	326	if ($rfc822_header->priority) {
	327	$prio = $rfc822_header->priority;
	328	$header[] = 'X-Priority: '.$prio. $rn;
	329	switch($prio)
	330	{
	331	case 1: $header[] = 'Importance: High'. $rn; break;
	332	case 3: $header[] = 'Importance: Normal'. $rn; break;
	333	case 5: $header[] = 'Importance: Low'. $rn; break;
	334	default: break;
	335	}
	336	}
	337	/* Insert headers from the $more_headers array */
	338	if(count($rfc822_header->more_headers)) {
	339	reset($rfc822_header->more_headers);
	340	foreach ($rfc822_header->more_headers as $k => $v) {
	341	$header[] = $k.': '.$v .$rn;
	342	}
	343	}
	344	$cnt = count($header);
	345	$hdr_s = '';
5d2a7b15	346
78f39e78	347	for ($i = 0 ; $i < $cnt ; $i++) {
5d2a7b15	348	$sKey = substr($header[$i],0,strpos($header[$i],':'));
	349	switch ($sKey)
	350	{
	351	case 'Message-ID':
	352	case 'In-Reply_To':
	353	$hdr_s .= $header[$i];
	354	break;
	355	case 'References':
	356	$sRefs = substr($header[$i],12);
	357	$aRefs = explode(' ',$sRefs);
	358	$sLine = 'References:';
	359	foreach ($aRefs as $sReference) {
	360	if (strlen($sLine)+strlen($sReference) >76) {
	361	$hdr_s .= $sLine;
	362	$sLine = $rn . ' ' . $sReference;
	363	} else {
	364	$sLine .= ' '. $sReference;
	365	}
	366	}
	367	$hdr_s .= $sLine;
	368	break;
	369	default: $hdr_s .= $this->foldLine($header[$i], 78, str_pad('',4)); break;
	370	}
78f39e78	371	}
78f39e78	372	$header = $hdr_s;
	373	$header .= $rn; /* One blank line to separate header and body */
	374	$raw_length += strlen($header);
	375	return $header;
4960ec8e	376	}
	377
	378	/*
	379	* function for cleanly folding of headerlines
	380	*/
1274f430	381	function foldLine($line, $length, $pre='') {
e4f9307a	382	$line = substr($line,0, -2);
fb1d6cb6	383	$length -= 2; /* do not fold between \r and \n */
	384	$cnt = strlen($line);
	385	if ($cnt > $length) { /* try folding */
	386	$fold_string = "\r\n " . $pre;
	387	$bFirstFold = false;
	388	$aFoldLine = array();
	389	while (strlen($line) > $length) {
	390	$fold = false;
	391	/* handle encoded parts */
7060c7f0	392	if (preg_match('/(=\?([^?])\?(Q\|B)\?([^?])\?=)(\s+\|.*)/Ui',$line,$regs)) {
fb1d6cb6	393	$fold_tmp = $regs[1];
7060c7f0	394	if (!trim($regs[5])) {
	395	$fold_tmp .= $regs[5];
	396	}
fb1d6cb6	397	$iPosEnc = strpos($line,$fold_tmp);
fb1d6cb6	398	$iLengthEnc = strlen($fold_tmp);
c422e824	399	$iPosEncEnd = $iPosEnc+$iLengthEnc;
c422e824	400	if ($iPosEnc < $length && (($iPosEncEnd) > $length)) {
fb1d6cb6	401	$fold = true;
fb1d6cb6	402	/* fold just before the start of the encoded string */
7060c7f0	403	if ($iPosEnc) {
	404	$aFoldLine[] = substr($line,0,$iPosEnc);
	405	}
fb1d6cb6	406	$line = substr($line,$iPosEnc);
	407	if (!$bFirstFold) {
	408	$bFirstFold = true;
	409	$length -= strlen($fold_string);
	410	}
	411	if ($iLengthEnc > $length) { /* place the encoded
	412	string on a separate line and do not fold inside it*/
223872cb	413	/* minimize foldstring */
	414	$fold_string = "\r\n ";
	415	$aFoldLine[] = substr($line,0,$iLengthEnc);
	416	$line = substr($line,$iLengthEnc);
	417	}
c422e824	418	} else if ($iPosEnc < $length) { /* the encoded string fits into the foldlength */
fb1d6cb6	419	/remainder /
fb1d6cb6	420	$sLineRem = substr($line,$iPosEncEnd,$length - $iPosEncEnd);
c422e824	421	if (preg_match('/^(=\?([^?])\?(Q\|B)\?([^?])\?=)(.*)/Ui',$sLineRem) \|\| !preg_match('/[=,;\s]/',$sLineRem)) {
fb1d6cb6	422	/impossible to fold clean in the next part -> fold after the enc string /
7060c7f0	423	$aFoldLine[] = substr($line,0,$iPosEncEnd);
7060c7f0	424	$line = substr($line,$iPosEncEnd);
fb1d6cb6	425	$fold = true;
	426	if (!$bFirstFold) {
	427	$bFirstFold = true;
	428	$length -= strlen($fold_string);
	429	}
223872cb	430	}
fb1d6cb6	431	}
	432	}
	433	if (!$fold) {
	434	$line_tmp = substr($line,0,$length);
	435	$iFoldPos = false;
	436	/* try to fold at logical places */
	437	switch (true)
	438	{
	439	case ($iFoldPos = strrpos($line_tmp,',')): break;
	440	case ($iFoldPos = strrpos($line_tmp,';')): break;
	441	case ($iFoldPos = strrpos($line_tmp,' ')): break;
	442	case ($iFoldPos = strrpos($line_tmp,'=')): break;
	443	default: break;
	444	}
	445
	446	if (!$iFoldPos) { /* clean folding didn't work */
	447	$iFoldPos = $length;
	448	}
	449	$aFoldLine[] = substr($line,0,$iFoldPos+1);
	450	$line = substr($line,$iFoldPos+1);
	451	if (!$bFirstFold) {
	452	$bFirstFold = true;
	453	$length -= strlen($fold_string);
	454	}
	455	}
	456	}
	457	/$reconstruct the line /
	458	if ($line) {
	459	$aFoldLine[] = $line;
	460	}
	461	$line = implode($fold_string,$aFoldLine);
	462	}
	463	return $line."\r\n";
	464	}
3b53d87f	465
59387d1c	466	function mimeBoundary () {
78f39e78	467	static $mimeBoundaryString;
3b53d87f	468
78f39e78	469	if ( !isset( $mimeBoundaryString ) \|\|
	470	$mimeBoundaryString == '') {
	471	$mimeBoundaryString = '----=_' . date( 'YmdHis' ) . '_' .
	472	mt_rand( 10000, 99999 );
	473	}
	474	return $mimeBoundaryString;
3b53d87f	475	}
3b53d87f	476
59387d1c	477	/* Time offset for correct timezone */
59387d1c	478	function timezone () {
78f39e78	479	global $invert_time;
	480
	481	$diff_second = date('Z');
	482	if ($invert_time) {
	483	$diff_second = - $diff_second;
	484	}
	485	if ($diff_second > 0) {
	486	$sign = '+';
	487	} else {
	488	$sign = '-';
	489	}
	490	$diff_second = abs($diff_second);
	491	$diff_hour = floor ($diff_second / 3600);
	492	$diff_minute = floor (($diff_second-3600*$diff_hour) / 60);
	493	$zonename = '('.strftime('%Z').')';
	494	$result = sprintf ("%s%02d%02d %s", $sign, $diff_hour, $diff_minute,
3b53d87f	495	$zonename);
78f39e78	496	return ($result);
59387d1c	497	}
3b53d87f	498
1274f430	499	function calculate_references($hdr) {
1274f430	500	$refer = $hdr->references;
78f39e78	501	$message_id = $hdr->message_id;
	502	$in_reply_to = $hdr->in_reply_to;
	503	if (strlen($refer) > 2) {
	504	$refer .= ' ' . $message_id;
	505	} else {
	506	if ($in_reply_to) {
	507	$refer .= $in_reply_to . ' ' . $message_id;
	508	} else {
	509	$refer .= $message_id;
	510	}
	511	}
	512	trim($refer);
	513	return $refer;
59387d1c	514	}
59387d1c	515	}
4960ec8e	516	?>