/** smtp.php
**
** This contains all the functions needed to send messages through
** an smtp server or sendmail.
**/
// Returns true only if this message is multipart
function isMultipart () {
global $attachments;
if (count($attachments)>0)
return true;
else
return false;
}
// Attach the files that are due to be attached
function attachFiles ($fp) {
global $attachments, $attachment_dir;
while (list($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=="")
$filetype = "application/octet-stream";
fputs ($fp, "--".mimeBoundary()."\n");
fputs ($fp, "Content-Type: $filetype\n");
fputs ($fp, "Content-Disposition: attachment; filename=\"$remotename\"\n");
fputs ($fp, "Content-Transfer-Encoding: base64\n\n");
$file = fopen ($attachment_dir.$localname, "r");
while ($tmp = fread($file, 57))
fputs ($fp, chunk_split(base64_encode($tmp)));
fclose ($file);
unlink ($attachment_dir.$localname);
unlink ($attachment_dir.$localname.".info");
}
}
// Return a nice MIME-boundary
function mimeBoundary () {
global $mimeBoundaryString, $version, $REMOTE_ADDR, $SERVER_NAME,
$REMOTE_PORT;
if ($mimeBoundaryString == "") {
$temp = "SquirrelMail".$version.$REMOTE_ADDR.$SERVER_NAME.
$REMOTE_PORT;
$mimeBoundaryString = "=-_+".substr(md5($temp),1,20);
}
return $mimeBoundaryString;
}
/* Time offset for correct timezone */
function timezone () {
$diff_second = date("Z");
if ($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);
}
/* Print all the needed RFC822 headers */
function write822Header ($fp, $t, $c, $b, $subject) {
global $REMOTE_ADDR, $SERVER_NAME;
global $data_dir, $username, $domain, $version, $useSendmail;
$to = parseAddrs($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";
$to_list = getLineOfAddrs($to);
$cc_list = getLineOfAddrs($cc);
$bcc_list = getLineOfAddrs($bcc);
if ($from == "")
$from = "<$from_addr>";
else
$from = $from . " <$from_addr>";
/* This creates an RFC 822 date showing GMT */
$date = date("D, j M Y H:i:s ", mktime()) . timezone();
/* Make an RFC822 Received: line */
fputs ($fp, "Received: from $REMOTE_ADDR by $SERVER_NAME with HTTP; ");
fputs ($fp, "$date\n");
/* The rest of the header */
fputs ($fp, "Date: $date\n");
fputs ($fp, "Subject: $subject\n"); // Subject
fputs ($fp, "From: $from\n"); // Subject
fputs ($fp, "To: $to_list\n"); // Who it's TO
if ($cc_list) {
fputs($fp, "Cc: $cc_list\n"); // Who the CCs are
}
if ($reply_to != "")
fputs($fp, "Reply-To: $reply_to\n");
if ($useSendmail) {
if ($bcc_list) {
// BCCs is removed from header by sendmail
fputs($fp, "Bcc: $bcc_list\n");
}
}
fputs($fp, "X-Mailer: SquirrelMail (version $version)\n"); // Identify SquirrelMail
// Do the MIME-stuff
fputs($fp, "MIME-Version: 1.0\n");
if (isMultipart()) {
fputs ($fp, "Content-Type: multipart/mixed; boundary=\"");
fputs ($fp, mimeBoundary());
fputs ($fp, "\"\n");
} else {
fputs($fp, "Content-Type: text/plain; charset=ISO-8859-1\n");
fputs($fp, "Content-Transfer-Encoding: 8bit\n");
}
}
// Send the body
function writeBody ($fp, $body) {
if (isMultipart()) {
fputs ($fp, "--".mimeBoundary()."\n");
fputs ($fp, "Content-Type: text/plain; charset=ISO-8859-1\n");
fputs ($fp, "Content-Transfer-Encoding: 8bit\n\n");
fputs ($fp, stripslashes($body) . "\n");
attachFiles($fp);
fputs ($fp, "\n--".mimeBoundary()."--\n");
} else {
fputs ($fp, stripslashes($body) . "\n");
}
}
// Send mail using the sendmail command
function sendSendmail($t, $c, $b, $subject, $body) {
global $sendmail_path, $username, $domain;
// open pipe to sendmail
$fp = popen (escapeshellcmd("$sendmail_path -odb -oi -t -f$username@$domain"), "w");
write822Header ($fp, $t, $c, $b, $subject);
writeBody($fp, $body);
pclose($fp);
}
function smtpReadData($smtpConnection) {
$read = fgets($smtpConnection, 1024);
$counter = 0;
while ($read) {
echo $read . "
";
$data[$counter] = $read;
$read = fgets($smtpConnection, 1024);
$counter++;
}
}
function sendSMTP($t, $c, $b, $subject, $body) {
global $username, $domain, $version, $smtpServerAddress, $smtpPort,
$data_dir;
$to = parseAddrs($t);
$cc = parseAddrs($c);
$bcc = parseAddrs($b);
$from_addr = getPref($data_dir, $username, "email_address");
if ($from_addr == "")
$from_addr = "$username@$domain";
$smtpConnection = fsockopen($smtpServerAddress, $smtpPort, $errorNumber, $errorString);
if (!$smtpConnection) {
echo "Error connecting to SMTP Server.
";
echo "$errorNumber : $errorString
";
exit;
}
$tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
errorCheck($tmp);
$to_list = getLineOfAddrs($to);
$cc_list = getLineOfAddrs($cc);
/** Lets introduce ourselves */
fputs($smtpConnection, "HELO $domain\n");
$tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
errorCheck($tmp);
/** Ok, who is sending the message? */
fputs($smtpConnection, "MAIL FROM:<$from_addr>\n");
$tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
errorCheck($tmp);
/** send who the recipients are */
for ($i = 0; $i < count($to); $i++) {
fputs($smtpConnection, "RCPT TO:<$to[$i]>\n");
$tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
errorCheck($tmp);
}
for ($i = 0; $i < count($cc); $i++) {
fputs($smtpConnection, "RCPT TO:<$cc[$i]>\n");
$tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
errorCheck($tmp);
}
for ($i = 0; $i < count($bcc); $i++) {
fputs($smtpConnection, "RCPT TO:<$bcc[$i]>\n");
$tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
errorCheck($tmp);
}
/** Lets start sending the actual message */
fputs($smtpConnection, "DATA\n");
$tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
errorCheck($tmp);
write822Header ($smtpConnection, $t, $c, $b, $subject);
writeBody($smtpConnection, $body); // send the body of the message
fputs($smtpConnection, ".\n"); // end the DATA part
$tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
$num = errorCheck($tmp);
if ($num != 250) {
echo "