-<?
+<?php
/** smtp.php
**
** This contains all the functions needed to send messages through
** an smtp server or sendmail.
+ **
+ ** $Id$
**/
$smtp_php = true;
+ if (!isset($addressbook_php))
+ include('../functions/addressbook.php');
+
+ // This should most probably go to some initialization...
+ if (ereg("^([^@%/]+)[@%/](.+)$", $username, $usernamedata)) {
+ $popuser = $usernamedata[1];
+ $domain = $usernamedata[2];
+ unset($usernamedata);
+ } else {
+ $popuser = $username;
+ }
+ // We need domain for smtp
+ if (!$domain)
+ $domain = getenv('HOSTNAME');
// Returns true only if this message is multipart
function isMultipart () {
return false;
}
+ // looks up aliases in the addressbook and expands them to
+ // the full address.
+ function expandAddrs ($array) {
+ $abook = addressbook_init();
+ for ($i=0; $i < count($array); $i++) {
+ $result = $abook->lookup($array[$i]);
+ $ret = "";
+ if (isset($result['email'])) {
+ if (isset($result['name'])) {
+ $ret = '"'.$result['name'].'" ';
+ }
+ $ret .= '<'.$result['email'].'>';
+ $array[$i] = $ret;
+ }
+ else
+ {
+ $array[$i] = '<' . $array[$i] . '>';
+ }
+ }
+ return $array;
+ }
+
// Attach the files that are due to be attached
function attachFiles ($fp) {
global $attachments, $attachment_dir;
$length = 0;
if (isMultipart()) {
- reset($attachments);
- while (list($localname, $remotename) = each($attachments)) {
- // This is to make sure noone is giving a filename in another
- // directory
- $localname = ereg_replace ("\\/", "", $localname);
-
- $fileinfo = fopen ($attachment_dir.$localname.".info", "r");
- $filetype = fgets ($fileinfo, 8192);
- fclose ($fileinfo);
- $filetype = trim ($filetype);
- if ($filetype=="")
- $filetype = "application/octet-stream";
+ foreach ($attachments as $info)
+ {
+ if (isset($info['type']))
+ $filetype = $info['type'];
+ else
+ $filetype = 'application/octet-stream';
- $header = "--".mimeBoundary()."\r\n";
- $header .= "Content-Type: $filetype\r\n";
- $header .= "Content-Disposition: attachment; filename=\"$remotename\"\r\n";
+ $header = '--'.mimeBoundary()."\r\n";
+ $header .= "Content-Type: $filetype; name=\"" .
+ $info['remotefilename'] . "\"\r\n";
+ $header .= "Content-Disposition: attachment; filename=\"" .
+ $info['remotefilename'] . "\"\r\n";
$header .= "Content-Transfer-Encoding: base64\r\n\r\n";
fputs ($fp, $header);
$length += strlen($header);
- $file = fopen ($attachment_dir.$localname, "r");
+ $file = fopen ($attachment_dir . $info['localfilename'], 'r');
while ($tmp = fread($file, 570)) {
$encoded = chunk_split(base64_encode($tmp));
$length += strlen($encoded);
while (list($localname, $remotename) = each($attachments)) {
if (!ereg ("\\/", $localname)) {
unlink ($attachment_dir.$localname);
- unlink ($attachment_dir.$localname.".info");
+ unlink ($attachment_dir.$localname.'.info');
}
}
}
// Return a nice MIME-boundary
function mimeBoundary () {
- global $version, $REMOTE_ADDR, $SERVER_NAME, $REMOTE_PORT;
-
static $mimeBoundaryString;
if ($mimeBoundaryString == "") {
- $temp = "SquirrelMail".$version.$REMOTE_ADDR.$SERVER_NAME.
- $REMOTE_PORT;
- $mimeBoundaryString = "=-_+".substr(md5($temp),1,20);
+ $mimeBoundaryString = "----=_" .
+ GenerateRandomString(60, '\'()+,-./:=?_', 7);
}
return $mimeBoundaryString;
/* Time offset for correct timezone */
function timezone () {
- $diff_second = date("Z");
+ global $invert_time;
+
+ $diff_second = date('Z');
+ if ($invert_time)
+ $diff_second = - $diff_second;
if ($diff_second > 0)
- $sign = "+";
+ $sign = '+';
else
- $sign = "-";
+ $sign = '-';
$diff_second = abs($diff_second);
$diff_hour = floor ($diff_second / 3600);
$diff_minute = floor (($diff_second-3600*$diff_hour) / 60);
- $zonename = "(".strftime("%Z").")";
+ $zonename = '('.strftime('%Z').')';
$result = sprintf ("%s%02d%02d %s", $sign, $diff_hour, $diff_minute, $zonename);
return ($result);
}
/* Print all the needed RFC822 headers */
- function write822Header ($fp, $t, $c, $b, $subject) {
+ function write822Header ($fp, $t, $c, $b, $subject, $more_headers) {
global $REMOTE_ADDR, $SERVER_NAME, $REMOTE_PORT;
- global $data_dir, $username, $domain, $version, $useSendmail;
- global $default_charset;
+ global $data_dir, $username, $popuser, $domain, $version, $useSendmail;
+ global $default_charset, $HTTP_VIA, $HTTP_X_FORWARDED_FOR;
+ global $REMOTE_HOST;
// Storing the header to make sure the header is the same
// everytime the header is printed.
static $header, $headerlength;
- if ($header == "") {
- $to = parseAddrs($t);
- $cc = parseAddrs($c);
- $bcc = parseAddrs($b);
- $reply_to = getPref($data_dir, $username, "reply_to");
- $from = getPref($data_dir, $username, "full_name");
- $from_addr = getPref($data_dir, $username, "email_address");
-
- if ($from_addr == "")
- $from_addr = "$username@$domain";
+ if ($header == '') {
+ $to = expandAddrs(parseAddrs($t));
+ $cc = expandAddrs(parseAddrs($c));
+ $bcc = expandAddrs(parseAddrs($b));
+ $reply_to = getPref($data_dir, $username, 'reply_to');
+ $from = getPref($data_dir, $username, 'full_name');
+ $from_addr = getPref($data_dir, $username, 'email_address');
+
+ if ($from_addr == '')
+ $from_addr = $popuser.'@'.$domain;
$to_list = getLineOfAddrs($to);
$cc_list = getLineOfAddrs($cc);
$bcc_list = getLineOfAddrs($bcc);
-
- if ($from == "")
- $from = "<$from_addr>";
- else
- $from = $from . " <$from_addr>";
- /* Encoding 8-bit characters */
+ /* Encoding 8-bit characters and making from line */
$subject = encodeHeader($subject);
- $from = encodeHeader($from);
+ if ($from == '')
+ $from = "<$from_addr>";
+ else
+ $from = '"' . encodeHeader($from) . "\" <$from_addr>";
/* 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() . "@" . $SERVER_NAME .">";
+ $message_id = '<' . $REMOTE_PORT . '.' . $REMOTE_ADDR . '.';
+ $message_id .= time() . '.squirrel@' . $SERVER_NAME .'>';
/* Make an RFC822 Received: line */
- $header = "Received: from $REMOTE_ADDR by $SERVER_NAME with HTTP; ";
- $header .= "$date\r\n";
+ if (isset($REMOTE_HOST))
+ $received_from = "$REMOTE_HOST ([$REMOTE_ADDR])";
+ else
+ $received_from = $REMOTE_ADDR;
+
+ if (isset($HTTP_VIA) || isset ($HTTP_X_FORWARDED_FOR)) {
+ if ($HTTP_X_FORWARDED_FOR == '')
+ $HTTP_X_FORWARDED_FOR = 'unknown';
+ $received_from .= " (proxying for $HTTP_X_FORWARDED_FOR)";
+ }
+
+ $header = "Received: from $received_from\r\n";
+ $header .= " (SquirrelMail authenticated user $username)\r\n";
+ $header .= " by $SERVER_NAME with HTTP;\r\n";
+ $header .= " $date\r\n";
/* Insert the rest of the header fields */
$header .= "Message-ID: $message_id\r\n";
$header .= "Date: $date\r\n";
$header .= "Subject: $subject\r\n";
$header .= "From: $from\r\n";
- $header .= "To: $to_list \r\n"; // Who it's TO
-
+ $header .= "To: $to_list\r\n"; // Who it's TO
+
+ /* Insert headers from the $more_headers array */
+ if(is_array($more_headers)) {
+ reset($more_headers);
+ while(list($h_name, $h_val) = each($more_headers)) {
+ $header .= sprintf("%s: %s\r\n", $h_name, $h_val);
+ }
+ }
+
if ($cc_list) {
$header .= "Cc: $cc_list\r\n"; // Who the CCs are
}
- if ($reply_to != "")
+ if ($reply_to != '')
$header .= "Reply-To: $reply_to\r\n";
if ($useSendmail) {
$header .= "MIME-Version: 1.0\r\n";
if (isMultipart()) {
- $header .= "Content-Type: multipart/mixed; boundary=\"";
+ $header .= 'Content-Type: multipart/mixed; boundary="';
$header .= mimeBoundary();
$header .= "\"\r\n";
} else {
- if ($default_charset != "")
+ if ($default_charset != '')
$header .= "Content-Type: text/plain; charset=$default_charset\r\n";
else
$header .= "Content-Type: text/plain;\r\n";
$attachmentlength = 0;
if (isMultipart()) {
- $body = "--".mimeBoundary()."\r\n";
+ $body = '--'.mimeBoundary()."\r\n";
if ($default_charset != "")
$body .= "Content-Type: text/plain; charset=$default_charset\r\n";
$body .= "Content-Type: text/plain\r\n";
$body .= "Content-Transfer-Encoding: 8bit\r\n\r\n";
- $body .= stripslashes($passedBody) . "\r\n";
+ $body .= $passedBody . "\r\n\r\n";
fputs ($fp, $body);
$attachmentlength = attachFiles($fp);
+ if (!isset($postbody)) $postbody = "";
$postbody .= "\r\n--".mimeBoundary()."--\r\n\r\n";
fputs ($fp, $postbody);
} else {
- $body = stripslashes($passedBody) . "\r\n";
+ $body = $passedBody . "\r\n";
fputs ($fp, $body);
$postbody = "\r\n";
fputs ($fp, $postbody);
}
// Send mail using the sendmail command
- function sendSendmail($t, $c, $b, $subject, $body) {
- global $sendmail_path, $username, $domain;
+ function sendSendmail($t, $c, $b, $subject, $body, $more_headers) {
+ global $sendmail_path, $popuser, $username, $domain;
+
+ // Build envelope sender address. Make sure it doesn't contain
+ // spaces or other "weird" chars that would allow a user to
+ // exploit the shell/pipe it is used in.
+ $envelopefrom = "$popuser@$domain";
+ $envelopefrom = ereg_replace("[[:blank:]]",'', $envelopefrom);
+ $envelopefrom = ereg_replace("[[:space:]]",'', $envelopefrom);
+ $envelopefrom = ereg_replace("[[:cntrl:]]",'', $envelopefrom);
// open pipe to sendmail
- $fp = popen (escapeshellcmd("$sendmail_path -t -f$username@$domain"), "w");
+ $fp = popen (escapeshellcmd("$sendmail_path -t -f$envelopefrom"), 'w');
- $headerlength = write822Header ($fp, $t, $c, $b, $subject);
+ $headerlength = write822Header ($fp, $t, $c, $b, $subject, $more_headers);
$bodylength = writeBody($fp, $body);
pclose($fp);
- return ($headerlength + $bodylenght);
+ return ($headerlength + $bodylength);
}
function smtpReadData($smtpConnection) {
$read = fgets($smtpConnection, 1024);
$counter = 0;
while ($read) {
- echo $read . "<BR>";
+ echo $read . '<BR>';
$data[$counter] = $read;
$read = fgets($smtpConnection, 1024);
$counter++;
}
}
- function sendSMTP($t, $c, $b, $subject, $body) {
- global $username, $domain, $version, $smtpServerAddress, $smtpPort,
+ function sendSMTP($t, $c, $b, $subject, $body, $more_headers) {
+ global $username, $popuser, $domain, $version, $smtpServerAddress, $smtpPort,
$data_dir, $color;
- $to = parseAddrs($t);
- $cc = parseAddrs($c);
- $bcc = parseAddrs($b);
- $from_addr = getPref($data_dir, $username, "email_address");
+ $to = expandAddrs(parseAddrs($t));
+ $cc = expandAddrs(parseAddrs($c));
+ $bcc = expandAddrs(parseAddrs($b));
+ $from_addr = getPref($data_dir, $username, 'email_address');
- if ($from_addr == "")
- $from_addr = "$username@$domain";
+ if (!$from_addr)
+ $from_addr = "$popuser@$domain";
$smtpConnection = fsockopen($smtpServerAddress, $smtpPort, $errorNumber, $errorString);
if (!$smtpConnection) {
- echo "Error connecting to SMTP Server.<br>";
+ echo 'Error connecting to SMTP Server.<br>';
echo "$errorNumber : $errorString<br>";
exit;
}
- $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
- errorCheck($tmp);
+ $tmp = fgets($smtpConnection, 1024);
+ errorCheck($tmp, $smtpConnection);
$to_list = getLineOfAddrs($to);
$cc_list = getLineOfAddrs($cc);
/** Lets introduce ourselves */
fputs($smtpConnection, "HELO $domain\r\n");
- $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
- errorCheck($tmp);
+ $tmp = fgets($smtpConnection, 1024);
+ errorCheck($tmp, $smtpConnection);
/** Ok, who is sending the message? */
- fputs($smtpConnection, "MAIL FROM:<$from_addr>\r\n");
- $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
- errorCheck($tmp);
+ fputs($smtpConnection, "MAIL FROM: <$from_addr>\r\n");
+ $tmp = fgets($smtpConnection, 1024);
+ errorCheck($tmp, $smtpConnection);
/** send who the recipients are */
for ($i = 0; $i < count($to); $i++) {
- fputs($smtpConnection, "RCPT TO:<$to[$i]>\r\n");
- $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
- errorCheck($tmp);
+ fputs($smtpConnection, "RCPT TO: $to[$i]\r\n");
+ $tmp = fgets($smtpConnection, 1024);
+ errorCheck($tmp, $smtpConnection);
}
for ($i = 0; $i < count($cc); $i++) {
- fputs($smtpConnection, "RCPT TO:<$cc[$i]>\r\n");
- $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
- errorCheck($tmp);
+ fputs($smtpConnection, "RCPT TO: $cc[$i]\r\n");
+ $tmp = fgets($smtpConnection, 1024);
+ errorCheck($tmp, $smtpConnection);
}
for ($i = 0; $i < count($bcc); $i++) {
- fputs($smtpConnection, "RCPT TO:<$bcc[$i]>\r\n");
- $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
- errorCheck($tmp);
+ fputs($smtpConnection, "RCPT TO: $bcc[$i]\r\n");
+ $tmp = fgets($smtpConnection, 1024);
+ errorCheck($tmp, $smtpConnection);
}
/** Lets start sending the actual message */
fputs($smtpConnection, "DATA\r\n");
- $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
- errorCheck($tmp);
+ $tmp = fgets($smtpConnection, 1024);
+ errorCheck($tmp, $smtpConnection);
// Send the message
- $headerlength = write822Header ($smtpConnection, $t, $c, $b, $subject);
+ $headerlength = write822Header ($smtpConnection, $t, $c, $b, $subject, $more_headers);
$bodylength = writeBody($smtpConnection, $body);
fputs($smtpConnection, ".\r\n"); // end the DATA part
- $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
- $num = errorCheck($tmp);
+ $tmp = fgets($smtpConnection, 1024);
+ $num = errorCheck($tmp, $smtpConnection);
if ($num != 250) {
+ $tmp = nl2br(htmlspecialchars($tmp));
echo "ERROR<BR>Message not sent!<BR>Reason given: $tmp<BR></BODY></HTML>";
}
}
- function errorCheck($line) {
+ function errorCheck($line, $smtpConnection) {
+ global $page_header_php;
global $color;
+ if (!isset($page_header_php)) {
+ include '../functions/page_header.php';
+ }
+
+ // Read new lines on a multiline response
+ $lines = $line;
+ while(ereg("^[0-9]+-", $line)) {
+ $line = fgets($smtpConnection, 1024);
+ $lines .= $line;
+ }
+
// Status: 0 = fatal
// 5 = ok
$err_num = substr($line, 0, strpos($line, " "));
switch ($err_num) {
- case 500: $message = "Syntax error; command not recognized";
+ case 500: $message = 'Syntax error; command not recognized';
$status = 0;
break;
- case 501: $message = "Syntax error in parameters or arguments";
+ case 501: $message = 'Syntax error in parameters or arguments';
$status = 0;
break;
- case 502: $message = "Command not implemented";
+ case 502: $message = 'Command not implemented';
$status = 0;
break;
- case 503: $message = "Bad sequence of commands";
+ case 503: $message = 'Bad sequence of commands';
$status = 0;
break;
- case 504: $message = "Command parameter not implemented";
+ case 504: $message = 'Command parameter not implemented';
$status = 0;
break;
- case 211: $message = "System status, or system help reply";
+ case 211: $message = 'System status, or system help reply';
$status = 5;
break;
- case 214: $message = "Help message";
+ case 214: $message = 'Help message';
$status = 5;
break;
- case 220: $message = "Service ready";
+ case 220: $message = 'Service ready';
$status = 5;
break;
- case 221: $message = "Service closing transmission channel";
+ case 221: $message = 'Service closing transmission channel';
$status = 5;
break;
- case 421: $message = "Service not available, closing chanel";
+ case 421: $message = 'Service not available, closing chanel';
$status = 0;
break;
- case 250: $message = "Requested mail action okay, completed";
+ case 250: $message = 'Requested mail action okay, completed';
$status = 5;
break;
- case 251: $message = "User not local; will forward";
+ case 251: $message = 'User not local; will forward';
$status = 5;
break;
- case 450: $message = "Requested mail action not taken: mailbox unavailable";
+ case 450: $message = 'Requested mail action not taken: mailbox unavailable';
$status = 0;
break;
- case 550: $message = "Requested action not taken: mailbox unavailable";
+ case 550: $message = 'Requested action not taken: mailbox unavailable';
$status = 0;
break;
- case 451: $message = "Requested action aborted: error in processing";
+ case 451: $message = 'Requested action aborted: error in processing';
$status = 0;
break;
- case 551: $message = "User not local; please try forwarding";
+ case 551: $message = 'User not local; please try forwarding';
$status = 0;
break;
- case 452: $message = "Requested action not taken: insufficient system storage";
+ case 452: $message = 'Requested action not taken: insufficient system storage';
$status = 0;
break;
- case 552: $message = "Requested mail action aborted: exceeding storage allocation";
+ case 552: $message = 'Requested mail action aborted: exceeding storage allocation';
$status = 0;
break;
- case 553: $message = "Requested action not taken: mailbox name not allowed";
+ case 553: $message = 'Requested action not taken: mailbox name not allowed';
$status = 0;
break;
- case 354: $message = "Start mail input; end with .";
+ case 354: $message = 'Start mail input; end with .';
$status = 5;
break;
- case 554: $message = "Transaction failed";
+ case 554: $message = 'Transaction failed';
$status = 0;
break;
- default: $message = "Unknown response: $line";
+ default: $message = 'Unknown response: '. nl2br(htmlspecialchars($lines));
$status = 0;
- $error_num = "001";
+ $error_num = '001';
break;
}
if ($status == 0) {
- echo "<HTML><BODY BGCOLOR=ffffff>";
- echo "<TT>";
- echo "<BR><B>ERROR</B><BR><BR>";
+ displayPageHeader($color, 'None');
+ echo '<TT>';
+ echo "<br><b><font color=\"$color[1]\">ERROR</font></b><br><br>";
echo " <B>Error Number: </B>$err_num<BR>";
echo " <B>Reason: </B>$message<BR>";
- echo "<B>Server Response: </B>$line<BR>";
- echo "<BR>MAIL NOT SENT";
- echo "</TT></BODY></HTML>";
+ $lines = nl2br(htmlspecialchars($lines));
+ echo "<B>Server Response: </B>$lines<BR>";
+ echo '<BR>MAIL NOT SENT';
+ echo '</TT></BODY></HTML>';
exit;
}
return $err_num;
}
- function sendMessage($t, $c, $b, $subject, $body) {
- global $useSendmail;
+ function sendMessage($t, $c, $b, $subject, $body, $reply_id) {
+ global $useSendmail, $msg_id, $is_reply, $mailbox;
global $data_dir, $username, $domain, $key, $version, $sent_folder, $imapServerAddress, $imapPort;
+ $more_headers = Array();
- if ($useSendmail==true) {
- $length = sendSendmail($t, $c, $b, $subject, $body);
+ $imap_stream = sqimap_login($username, $key, $imapServerAddress, $imapPort, 1);
+
+ if (isset($reply_id) && $reply_id) {
+ sqimap_mailbox_select ($imap_stream, $mailbox);
+ sqimap_messages_flag ($imap_stream, $reply_id, $reply_id, 'Answered');
+
+ // Insert In-Reply-To and References headers if the
+ // message-id of the message we reply to is set (longer than "<>")
+ // The References header should really be the old Referenced header
+ // with the message ID appended, but it can be only the message ID too.
+ $hdr = sqimap_get_small_header ($imap_stream, $reply_id, false);
+ if(strlen($hdr->message_id) > 2) {
+ $more_headers['In-Reply-To'] = $hdr->message_id;
+ $more_headers['References'] = $hdr->message_id;
+ }
+ }
+
+ // In order to remove the problem of users not able to create
+ // messages with "." on a blank line, RFC821 has made provision
+ // in section 4.5.2 (Transparency).
+ $body = ereg_replace("\n\\.", "\n..", $body);
+ $body = ereg_replace("^\\.", "..", $body);
+
+ // this is to catch all plain \n instances and
+ // replace them with \r\n.
+ $body = ereg_replace("\r\n", "\n", $body);
+ $body = ereg_replace("\n", "\r\n", $body);
+
+ if ($useSendmail) {
+ $length = sendSendmail($t, $c, $b, $subject, $body, $more_headers);
} else {
- $length = sendSMTP($t, $c, $b, $subject, $body);
+ $length = sendSMTP($t, $c, $b, $subject, $body, $more_headers);
}
- $imap_stream = sqimap_login($username, $key, $imapServerAddress, $imapPort, 1);
if (sqimap_mailbox_exists ($imap_stream, $sent_folder)) {
sqimap_append ($imap_stream, $sent_folder, $length);
- write822Header ($imap_stream, $t, $c, $b, $subject);
- writeBody ($imap_stream, $body);
+ write822Header ($imap_stream, $t, $c, $b, $subject, $more_headers);
+ writeBody ($imap_stream, $body);
sqimap_append_done ($imap_stream);
- }
-
+ }
+ sqimap_logout($imap_stream);
// Delete the files uploaded for attaching (if any).
- deleteAttachments();
+ ClearAttachments();
}
+
?>