<?php
-
/**
* Deliver.class.php
*
- * Copyright (c) 1999-2002 The SquirrelMail Project Team
+ * Copyright (c) 1999-2005 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.
*
- * $Id$
+ * @version $Id$
+ * @author Marc Groot Koerkamp
+ * @package squirrelmail
*/
+/**
+ * Deliver Class - called to actually deliver the message
+ *
+ * This class is called by compose.php and other code that needs
+ * to send messages. All delivery functionality should be centralized
+ * in this class.
+ *
+ * Do not place UI code in this class, as UI code should be placed in templates
+ * going forward.
+ *
+ * @author Marc Groot Koerkamp
+ * @package squirrelmail
+ */
class Deliver {
- function mail($message, $stream) {
-
- $rfc822_header = $message->rfc822_header;
- if (count($message->entities)) {
- $boundary = mimeBoundary();
- $rfc822_header->contenttype->properties['boundary']=$boundary;
- } else {
- $boundary='';
- }
- $header = prepareRFC822_Header($rfc822_header);
- $raw_length = strlen($header);
- if ($stream) {
- $this->preWriteToStream($s);
- $this->writeToStream($stream, $s);
- }
- writeBody($message, $stream, $length_raw, $boundary);
- return $raw_length;
+ /**
+ * function mail - send the message parts to the SMTP stream
+ *
+ * @param Message $message Message class to send
+ * @param resource $stream file handle to the SMTP stream
+ *
+ * @return integer $raw_length
+ */
+ function mail($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 - generate and write the mime boundaries around each part to the stream
+ *
+ * Recursively formats and writes the MIME boundaries of the $message
+ * to the output stream.
+ *
+ * @param Message $message Message object to transform
+ * @param resource $stream SMTP output stream
+ * @param integer &$length_raw raw length of the message (part)
+ * as returned by mail fn
+ * @param string $boundary custom boundary to call, usually for subparts
+ *
+ * @return void
+ */
function writeBody($message, $stream, &$length_raw, $boundary='') {
- if ($boundary) {
- $s = '--'.$boundary."\r\n";
- $s .= $this->prepareMIME_Header($message, $boundary);
- $length_raw += strlen($s);
- if ($stream) {
+ // calculate boundary in case of multidimensional mime structures
+ if ($boundary && $message->entity_id && count($message->entities)) {
+ if (strpos($boundary,'_part_')) {
+ $boundary = substr($boundary,0,strpos($boundary,'_part_'));
+
+ // the next four lines use strrev to reverse any nested boundaries
+ // because RFC 2046 (5.1.1) says that if a line starts with the outer
+ // boundary string (doesn't matter what the line ends with), that
+ // can be considered a match for the outer boundary; thus the nested
+ // boundary needs to be unique from the outer one
+ //
+ } else if (strpos($boundary,'_trap_')) {
+ $boundary = substr(strrev($boundary),0,strpos(strrev($boundary),'_part_'));
+ }
+ $boundary_new = strrev($boundary . '_part_'.$message->entity_id);
+ } else {
+ $boundary_new = $boundary;
+ }
+ if ($boundary && !$message->rfc822_header) {
+ $s = '--'.$boundary."\r\n";
+ $s .= $this->prepareMIME_Header($message, $boundary_new);
+ $length_raw += strlen($s);
+ if ($stream) {
$this->preWriteToStream($s);
- $this->writeToStream($stream, $s);
- }
- }
- writeBodyPart($message, $stream, $length_raw);
- $boundary_depth = substr_count($message->entity_id,'.');
- if ($boundary_depth) {
- $boundary .= '_part'.$boundary_depth;
- }
- for ($i=0, $entCount=count($message->entities);$i<$entCount;$i++) {
- $msg = writeBody($message->entities[$i], $stream, $length_raw, $boundary);
- }
- if ($boundary) {
- $s = '--'.$boundary."--\r\n";
- $length_raw += strlen($s);
- if ($stream) {
+ $this->writeToStream($stream, $s);
+ }
+ }
+ $this->writeBodyPart($message, $stream, $length_raw);
+
+ $last = false;
+ for ($i=0, $entCount=count($message->entities);$i<$entCount;$i++) {
+ $msg = $this->writeBody($message->entities[$i], $stream, $length_raw, $boundary_new);
+ if ($i == $entCount-1) $last = true;
+ }
+ if ($boundary && $last) {
+ $s = "--".$boundary_new."--\r\n\r\n";
+ $length_raw += strlen($s);
+ if ($stream) {
$this->preWriteToStream($s);
- $this->writeToStream($stream, $s);
- }
- }
+ $this->writeToStream($stream, $s);
+ }
+ }
}
+ /**
+ * function writeBodyPart - write each individual mimepart
+ *
+ * Recursively called by WriteBody to write each mime part to the SMTP stream
+ *
+ * @param Message $message Message object to transform
+ * @param resource $stream SMTP output stream
+ * @param integer &$length length of the message part
+ * as returned by mail fn
+ *
+ * @return void
+ */
function writeBodyPart($message, $stream, &$length) {
- $body_part = '';
- switch ($message->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, $body_part)
- }
- } elseif ($message->att_local_name) {
- $filename = $message->att_local_name;
- $file = fopen ($filename, 'rb');
- while ($tmp = fgets($file, 4096)) {
- $length += $this->clean_crlf($tmp);
- if ($stream) {
- $this->preWriteToStream($tmp);
- $this->writeToStream($stream, $tmp);
- }
- }
- fclose($file);
+ 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;
+ // remove NUL characters
+ $body_part = str_replace("\0",'',$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)) {
+ // remove NUL characters
+ $body_part = str_replace("\0",'',$body_part);
+ $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');
- while ($tmp = fread($file, 1520)) {
- $encoded = chunk_split(base64_encode($tmp));
- $length += strlen($encoded);
- if ($stream) {
- $this->writeToStream($stream, $encoded);
- }
- }
- fclose($file);
- }
- break;
- }
+ break;
+ default:
+ if ($message->body_part) {
+ $body_part = $message->body_part;
+ // remove NUL characters
+ $body_part = str_replace("\0",'',$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');
+ 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, $body_part_trailing);
+ }
+ }
}
-
+
+ /**
+ * function clean_crlf - change linefeeds and newlines to legal characters
+ *
+ * The SMTP format only allows CRLF as line terminators.
+ * This function replaces illegal teminators with the correct terminator.
+ *
+ * @param string &$s string to clean linefeeds on
+ *
+ * @return void
+ */
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);
+ return strlen($s);
}
+ /**
+ * function strip_crlf - strip linefeeds and newlines from a string
+ *
+ * The SMTP format only allows CRLF as line terminators.
+ * This function strips all line terminators from the string.
+ *
+ * @param string &$s string to clean linefeeds on
+ *
+ * @return void
+ */
+ function strip_crlf(&$s) {
+ $s = str_replace("\r\n ", '', $s);
+ $s = str_replace("\r", '', $s);
+ $s = str_replace("\n", '', $s);
+ }
+
+ /**
+ * function preWriteToStream - reserved for extended functionality
+ *
+ * This function is not yet implemented.
+ * Reserved for extended functionality.
+ *
+ * @param string &$s string to operate on
+ *
+ * @return void
+ */
function preWriteToStream(&$s) {
}
-
+
+ /**
+ * function writeToStream - write data to the SMTP stream
+ *
+ * @param resource $stream SMTP output stream
+ * @param string $data string with data to send to the SMTP stream
+ *
+ * @return void
+ */
function writeToStream($stream, $data) {
+ fputs($stream, $data);
}
-
+
+ /**
+ * function initStream - reserved for extended functionality
+ *
+ * This function is not yet implemented.
+ * Reserved for extended functionality.
+ *
+ * @param Message $message Message object
+ * @param string $host host name or IP to connect to
+ * @param string $user username to log into the SMTP server with
+ * @param string $pass password to log into the SMTP server with
+ * @param integer $length
+ *
+ * @return handle $stream file handle resource to SMTP stream
+ */
function initStream($message, $length=0, $host='', $port='', $user='', $pass='') {
- return $stream;
+ return $stream;
}
- function prepareMIME_Header($message, $boundary) {
- $mime_header = $message->header;
- $rn="\r\n"
- $header = array();
-
- $contenttype = 'Content-Type: '. $mime_header->contenttype->type0 .'/'.
- $mime_header->contenttype->type1;
- if (count($message->entities)) {
- $contenttype .= ";\r\n " . 'boundary="'.$boundary.'"';
- }
- if (isset($mime_header->parameters['name'])) {
- $contenttype .= ";\r\n " . 'name="'.
- encodeHeader($mime_header->parameters['name']). '"';
- }
- $header[] = $contenttype . $rn;
- if ($mime_header->description) {
- $header[] .= 'Content-Description: ' . $mime_header->description . $rn;
- }
- if ($mime_header->encoding) {
- $header[] .= 'Content-Transfer-Encoding: ' . $mime_header->encoding . $rn;
- }
- if ($mime_header->id) {
- $header[] .= 'Content-ID: ' . $mime_header->id . $rn;
- }
- if ($mime_header->disposition) {
- $contentdisp .= 'Content-Disposition: ' . $mime_header->disposition;
- if (isset($mime_header->parameters['filename'])) {
- $contentdisp .= ";\r\n " . 'filename="'.
- encodeHeader($mime_header->parameters['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++) {
- $hdr_s .= foldLine($header[$i], 78, ' ');
- }
- $header = $hdr_s;
- $header .= $rn; /* One blank line to separate mimeheader and body-entity */
- return $header;
- }
-
- function prepareRFC822_Header($rfc822_header) {
- global $REMOTE_ADDR, $SERVER_NAME, $REMOTE_PORT;
- global $version, $useSendmail, $username;
- global $HTTP_VIA, $HTTP_X_FORWARDED_FOR;
- global $REMOTE_HOST;
-
- /* This creates an RFC 822 date */
- $date = date("D, j M Y H:i:s ", mktime()) . 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])";
+ /**
+ * function getBCC - reserved for extended functionality
+ *
+ * This function is not yet implemented.
+ * Reserved for extended functionality.
+ *
+ */
+ function getBCC() {
+ return false;
}
- else
- {
- $received_from = $REMOTE_ADDR;
- }
- if (isset($HTTP_VIA) || isset ($HTTP_X_FORWARDED_FOR)) {
- if ($HTTP_X_FORWARDED_FOR == '') {
- $HTTP_X_FORWARDED_FOR = 'unknown';
+
+ /**
+ * function prepareMIME_Header - creates the mime header
+ *
+ * @param Message $message Message object to act on
+ * @param string $boundary mime boundary from fn MimeBoundary
+ *
+ * @return string $header properly formatted mime header
+ */
+ function prepareMIME_Header($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)) {
+ $contenttype .= ';' . 'boundary="'.$boundary.'"';
}
- $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;
- $header[] = "Date: $date" . $rn;
- $header[] = 'Subject: '.encodeHeader($rfc822_header->subject) . $rn;
- $header[] = 'From: '. encodeHeader($rfc822_header->getAddr_s('from')) . $rn;
- if (count($rfc822_header->from) > 1) /* RFC2822 if from contains
- more then 1 address */
- {
- $header[] = 'Sender: '. encodeHeader($rfc822_header->getAddr_s('sender')) . $rn;
- }
- $header[] = 'To: '. encodeHeader($rfc822_header->getAddr_s('to')) . $rn; // Who it's TO
- if (count($rfc_header->cc))
- {
- $header[] = 'Cc: '. encodeHeader($rfc822_header->getAddr_s('cc')) . $rn;
- }
- if (count($rfc822_header->$reply_to))
- {
- $header[] = 'Reply-To: '. encodeHeader($rfc822_header->getAddr_s('reply_to')) . $rn;
- }
- if (count($rfc_header->bcc) && $useSendmail)
- {
- $header[] = 'Bcc: '. encodeHeader($rfc822_header->getAddr_s('bcc')) . $rn;
- }
- /* Identify SquirrelMail */
- $header[] = "X-Mailer: SquirrelMail (version $version)" . $rn;
- /* Do the MIME-stuff */
- $header[] = "MIME-Version: 1.0" . $rn;
- $contenttype = 'Content-Type: '. $rfc822_header->contenttype->type0 .'/'.
- $rfc822_header->contenttype->type1;
- if (count($rfc822_header->contenttype->properties))
- {
- foreach ($rfc822_header->contenttype->properties as $k => $v)
- {
- $contenttype .= ';'. "\r\n " .$k.'='.$v; /* FOLDING */
+ if (isset($mime_header->parameters['name'])) {
+ $contenttype .= '; name="'.
+ encodeHeader($mime_header->parameters['name']). '"';
}
- }
- $header[] = $contenttype . $rn;
- if ($rfc822_header->dnt)
- {
- $dnt = $rfc822_header->getAddr_s('dnt');
- /* Pegasus Mail */
- $header[] = 'X-Confirm-Reading-To: '.$dnt;
- /* RFC 2298 */
- $header[] = 'Disposition-Notification-To: '.$dnt;
- }
- if ($rfc822_header->priority)
- {
- $prio = $rfc822_header->priority;
- $header[] = 'X-Priority: '.$prio;
- switch($prio)
- {
- case 1:
- $header[] = 'Importance: High';
- $header[] = 'X-MSMail-Priority: High';
- break;
- case 3:
- $header[] = 'Importance: Normal';
- $header[] = 'X-MSMail-Priority: Normal';
- break;
- case 5:
- $header[] = 'Importance: Low';
- $header[] = 'X-MSMail-Priority: Low';
- break;
- default:
- break;
+ if (isset($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) {
+ $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;
}
- /* Insert headers from the $more_headers array */
- if(count($more_headers))
- {
- reset($more_headers);
- foreach ($more_headers as $k => $v)
- {
- $header[] = $k.': '.$v;
- }
- }
- $cnt = count($header);
- $hdr_s = '';
- for ($i = 0 ; $i < $cnt ; $i++)
- {
- $hdr_s .= foldLine($header[$i], 78, ' ');
- }
- $header = $hdr_s;
- $header .= $rn; /* One blank line to separate header and body */
-
- return $header;
- }
- /*
- * function for cleanly folding of headerlines
- */
- function foldLine($line, $length, $pre) {
- $cnt = strlen($line);
- $res = '';
- if ($cnt > $lenght)
- {
- $fold_string = $pre.' '."\r\n";
- for ($i=0;$i<($cnt-$length);$i++)
- {
- $fold_pos = 0;
- /* first try to fold at delimiters */
- for ($j=($i+$length); $j>$i; $j--)
+ /**
+ * function prepareRFC822_Header - prepares the RFC822 header string from Rfc822Header object(s)
+ *
+ * This function takes the Rfc822Header object(s) and formats them
+ * into the RFC822Header string to send to the SMTP server as part
+ * of the SMTP message.
+ *
+ * @param Rfc822Header $rfc822_header
+ * @param Rfc822Header $reply_rfc822_header
+ * @param integer &$raw_length length of the message
+ *
+ * @return string $header
+ */
+ function prepareRFC822_Header($rfc822_header, $reply_rfc822_header, &$raw_length) {
+ global $domain, $version, $username, $encode_header_key, $edit_identity, $hide_auth_header;
+
+ /* 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 = '<' . $REMOTE_PORT . '.';
+ if (isset($encode_header_key) && trim($encode_header_key)!='') {
+ // use encrypted form of remote address
+ $message_id.= OneTimePadEncrypt($this->ip2hex($REMOTE_ADDR),base64_encode($encode_header_key));
+ } else {
+ $message_id.= $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)";
+ }
+ $header = array();
+
+ /**
+ * SquirrelMail header
+ *
+ * This Received: header provides information that allows to track
+ * user and machine that was used to send email. Don't remove it
+ * unless you understand all possible forging issues or your
+ * webmail installation does not prevent changes in user's email address.
+ * See SquirrelMail bug tracker #847107 for more details about it.
+ */
+ if (isset($encode_header_key) &&
+ trim($encode_header_key)!='') {
+ // use encoded headers, if encryption key is set and not empty
+ $header[].= 'X-Squirrel-UserHash: '.OneTimePadEncrypt($username,base64_encode($encode_header_key)).$rn;
+ $header[].= 'X-Squirrel-FromHash: '.OneTimePadEncrypt($this->ip2hex($REMOTE_ADDR),base64_encode($encode_header_key)).$rn;
+ if (isset($HTTP_X_FORWARDED_FOR))
+ $header[].= 'X-Squirrel-ProxyHash:'.OneTimePadEncrypt($this->ip2hex($HTTP_X_FORWARDED_FOR),base64_encode($encode_header_key)).$rn;
+ } else {
+ // use default received headers
+ $header[] = "Received: from $received_from" . $rn;
+ if ($edit_identity || ! isset($hide_auth_header) || ! $hide_auth_header)
+ $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: '. $rfc822_header->getAddr_s('from',",$rn ",true) . $rn;
+
+ // folding address list [From|To|Cc|Bcc] happens by using ",$rn<space>" as delimiter
+ // Do not use foldLine for that.
+
+ // 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: '. $rfc822_header->getAddr_s('to',",$rn ",true) . $rn;
+ }
+ if (count($rfc822_header->cc)) {
+ $header[] = 'Cc: '. $rfc822_header->getAddr_s('cc',",$rn ",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: '. $rfc822_header->getAddr_s('bcc',",$rn ",true) . $rn;
+ if (!$bcc) {
+ $raw_length += strlen($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) {
+ switch($rfc822_header->priority)
{
- switch ($line{$j})
- {
- case (','):
- case (';'):
- $fold_pos = $j;
- break;
- default:
- break;
- }
- if ($fold_pos)
- {
- $j=$i;
- }
- }
- if (!$fold_pos)
- {
- /* not succeed yet so we try at spaces and = */
- for ($j=($i+$length); $j>$i; $j--)
- {
- switch ($line{$j})
- {
- case (' '):
- case ('='):
- $fold_pos = $j;
- break;
- default:
- break;
- }
- if ($fold_pos)
- {
- $j=$i;
- }
- }
- }
- if (!$fold_pos)
- {
- /* clean folding didn't work */
- $fold_pos = $i+$length;
- }
- $line = substr_replace($line,$line{$fold_pos}.$fold_string,$fold_pos,1);
- $cnt += strlen($fold_string);
- $i = $j + strlen($fold_string);
- }
+ case 1:
+ $header[] = 'X-Priority: 1 (Highest)'.$rn;
+ $header[] = 'Importance: High'. $rn; break;
+ case 5:
+ $header[] = 'X-Priority: 5 (Lowest)'.$rn;
+ $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;
+ case 'To':
+ case 'Cc':
+ case 'Bcc':
+ case 'From':
+ $hdr_s .= $header[$i];
+ 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;
}
- return $line;
- }
-}
-function mimeBoundary () {
- static $mimeBoundaryString;
+ /**
+ * function foldLine - for cleanly folding of headerlines
+ *
+ * @param string $line
+ * @param integer $length length to fold the line at
+ * @param string $pre prefix the line with...
+ *
+ * @return string $line folded line with trailing CRLF
+ */
+ function foldLine($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 ( !isset( $mimeBoundaryString ) ||
- $mimeBoundaryString == '') {
- $mimeBoundaryString = '----=_' . date( 'YmdHis' ) . '_' .
- mt_rand( 10000, 99999 );
+ if (!$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";
}
- return $mimeBoundaryString;
-}
+ /**
+ * function mimeBoundary - calculates the mime boundary to use
+ *
+ * This function will generate a random mime boundary base part
+ * for the message if the boundary has not already been set.
+ *
+ * @return string $mimeBoundaryString random mime boundary string
+ */
+ function mimeBoundary () {
+ static $mimeBoundaryString;
-/* Time offset for correct timezone */
-function timezone () {
- global $invert_time;
-
- $diff_second = date('Z');
- if ($invert_time) {
- $diff_second = - $diff_second;
+ if ( !isset( $mimeBoundaryString ) ||
+ $mimeBoundaryString == '') {
+ $mimeBoundaryString = '----=_' . date( 'YmdHis' ) . '_' .
+ mt_rand( 10000, 99999 );
+ }
+ return $mimeBoundaryString;
}
- if ($diff_second > 0) {
- $sign = '+';
+
+ /**
+ * function timezone - Time offset for correct timezone
+ *
+ * @return string $result with timezone and offset
+ */
+ 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);
}
- else {
- $sign = '-';
+
+ /**
+ * function calculate_references - calculate correct Referer string
+ *
+ * @param Rfc822Header $hdr message header to calculate from
+ *
+ * @return string $refer concatenated and trimmed Referer string
+ */
+ function calculate_references($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;
}
- $diff_second = abs($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);
+ /**
+ * Converts ip address to hexadecimal string
+ *
+ * Function is used to convert ipv4 and ipv6 addresses to hex strings.
+ * It removes all delimiter symbols from ip addresses, converts decimal
+ * ipv4 numbers to hex and pads strings in order to present full length
+ * address. ipv4 addresses are represented as 8 byte strings, ipv6 addresses
+ * are represented as 32 byte string.
+ *
+ * If function fails to detect address format, it returns unprocessed string.
+ * @param string $string ip address string
+ * @return string processed ip address string
+ * @since 1.5.1
+ */
+ function ip2hex($string) {
+ if (preg_match("/^(\d+)\.(\d+)\.(\d+)\.(\d+)$/",$string,$match)) {
+ // ipv4 address
+ $ret = str_pad(dechex($match[1]),2,'0',STR_PAD_LEFT)
+ . str_pad(dechex($match[2]),2,'0',STR_PAD_LEFT)
+ . str_pad(dechex($match[3]),2,'0',STR_PAD_LEFT)
+ . str_pad(dechex($match[4]),2,'0',STR_PAD_LEFT);
+ } elseif (preg_match("/^([0-9a-h]+)\:([0-9a-h]+)\:([0-9a-h]+)\:([0-9a-h]+)\:([0-9a-h]+)\:([0-9a-h]+)\:([0-9a-h]+)\:([0-9a-h]+)$/i",$string,$match)) {
+ // full ipv6 address
+ $ret = str_pad($match[1],4,'0',STR_PAD_LEFT)
+ . str_pad($match[2],4,'0',STR_PAD_LEFT)
+ . str_pad($match[3],4,'0',STR_PAD_LEFT)
+ . str_pad($match[4],4,'0',STR_PAD_LEFT)
+ . str_pad($match[5],4,'0',STR_PAD_LEFT)
+ . str_pad($match[6],4,'0',STR_PAD_LEFT)
+ . str_pad($match[7],4,'0',STR_PAD_LEFT)
+ . str_pad($match[8],4,'0',STR_PAD_LEFT);
+ } elseif (preg_match("/^\:\:([0-9a-h\:]+)$/i",$string,$match)) {
+ // short ipv6 with all starting symbols nulled
+ $aAddr=explode(':',$match[1]);
+ $ret='';
+ foreach ($aAddr as $addr) {
+ $ret.=str_pad($addr,4,'0',STR_PAD_LEFT);
+ }
+ $ret=str_pad($ret,32,'0',STR_PAD_LEFT);
+ } elseif (preg_match("/^([0-9a-h\:]+)::([0-9a-h\:]+)$/i",$string,$match)) {
+ // short ipv6 with middle part nulled
+ $aStart=explode(':',$match[1]);
+ $sStart='';
+ foreach($aStart as $addr) {
+ $sStart.=str_pad($addr,4,'0',STR_PAD_LEFT);
+ }
+ $aEnd = explode(':',$match[2]);
+ $sEnd='';
+ foreach($aEnd as $addr) {
+ $sEnd.=str_pad($addr,4,'0',STR_PAD_LEFT);
+ }
+ $ret = $sStart
+ . str_pad('',(32 - strlen($sStart . $sEnd)),'0',STR_PAD_LEFT)
+ . $sEnd;
+ } else {
+ // unknown addressing
+ $ret = $string;
+ }
+ return $ret;
+ }
}
-
-?>
+?>
\ No newline at end of file
projects / squirrelmail.git / blobdiff