<?php
+/**
+ * Deliver_SMTP.class.php
+ *
+ * Copyright (c) 1999-2003 The SquirrelMail Project Team
+ * Licensed under the GNU GPL. For full terms see the file COPYING.
+ *
+ * Delivery backend for the Deliver class.
+ *
+ * $Id$
+ */
-require_once('Deliver.class.php');
+require_once(SM_PATH . 'class/deliver/Deliver.class.php');
class Deliver_SMTP extends Deliver {
}
function initStream($message, $domain, $length=0, $host='', $port='', $user='', $pass='', $authpop=false) {
-
- if ($authpop) {
- $this->authPop($host, '', $user, $pass);
+ global $use_smtp_tls,$smtp_auth_mech,$username,$key,$onetimepad;
+
+ if ($authpop) {
+ $this->authPop($host, '', $username, $pass);
}
-
- $rfc822_header = $message->rfc822_header;
+
+ $rfc822_header = $message->rfc822_header;
$from = $rfc822_header->from[0];
$to = $rfc822_header->to;
$cc = $rfc822_header->cc;
- $bcc = $rfc822_header->bcc;
+ $bcc = $rfc822_header->bcc;
+
+ if (($use_smtp_tls == true) and (check_php_version(4,3)) and (extension_loaded('openssl'))) {
+ $stream = fsockopen('tls://' . $host, $port, $errorNumber, $errorString);
+ } else {
+ $stream = fsockopen($host, $port, $errorNumber, $errorString);
+ }
- $stream = fsockopen($host, $port, $errorNumber, $errorString);
if (!$stream) {
$this->dlv_msg = $errorString;
$this->dlv_ret_nr = $errorNumber;
}
/* Lets introduce ourselves */
- if (! isset ($use_authenticated_smtp)
- || $use_authenticated_smtp == false) {
- fputs($stream, "HELO $domain\r\n");
- $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
- }
- } else {
- fputs($stream, "EHLO $domain\r\n");
- $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
- }
- fputs($stream, "AUTH LOGIN\r\n");
- $tmp = fgets($stream, 1024);
+ if (( $smtp_auth_mech == 'cram-md5') or ( $smtp_auth_mech == 'digest-md5' )) {
+ // Doing some form of non-plain auth
+ fputs($stream, "EHLO $domain\r\n");
+ $tmp = fgets($stream,1024);
+ if ($this->errorCheck($tmp,$stream)) {
+ return(0);
+ }
+ if ($smtp_auth_mech == 'cram-md5') {
+ fputs($stream, "AUTH CRAM-MD5\r\n");
+ } elseif ($smtp_auth_mech == 'digest-md5') {
+ fputs($stream, "AUTH DIGEST-MD5\r\n");
+ }
+ $tmp = fgets($stream,1024);
+
+ if ($this->errorCheck($tmp,$stream)) {
+ return(0);
+ }
+
+ // At this point, $tmp should hold "334 <challenge string>"
+ $chall = substr($tmp,4);
+ // Depending on mechanism, generate response string
+ if ($smtp_auth_mech == 'cram-md5') {
+ $response = cram_md5_response($username,$pass,$chall);
+ } elseif ($smtp_auth_mech == 'digest-md5') {
+ $response = digest_md5_response($username,$pass,$chall,'smtp',$host);
+ }
+ fputs($stream, $response);
+
+ // Let's see what the server had to say about that
+ $tmp = fgets($stream,1024);
+ if ($this->errorCheck($tmp,$stream)) {
+ return(0);
+ }
+
+ // CRAM-MD5 is done at this point. If DIGEST-MD5, there's a bit more to go
+ if ($smtp_auth_mech == 'digest-md5')
+ {
+ // $tmp contains rspauth, but I don't store that yet. (No need yet)
+ fputs($stream,"\r\n");
+ $tmp = fgets($stream,1024);
+
+ if ($this->errorCheck($tmp,$stream)) {
+ return(0);
+ }
+ }
+ // CRAM-MD5 and DIGEST-MD5 code ends here
+ } elseif ($smtp_auth_mech == 'none') {
+ // No auth at all, just send helo and then send the mail
+ fputs($stream, "HELO $domain\r\n");
+ $tmp = fgets($stream, 1024);
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
+ }
+ } elseif ($smtp_auth_mech == 'plain') {
+ // The plain LOGIN method
+ fputs($stream, "EHLO $domain\r\n");
+ $tmp = fgets($stream, 1024);
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
+ }
+ fputs($stream, "AUTH LOGIN\r\n");
+ $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
- }
- fputs($stream, base64_encode ($user) . "\r\n");
- $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
- }
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
+ }
+ fputs($stream, base64_encode ($username) . "\r\n");
+ $tmp = fgets($stream, 1024);
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
+ }
- fputs($stream, base64_encode($pass) . "\r\n");
- $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
- }
+ fputs($stream, base64_encode($pass) . "\r\n");
+ $tmp = fgets($stream, 1024);
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
+ }
}
/* Ok, who is sending the message? */
/* send who the recipients are */
for ($i = 0, $cnt = count($to); $i < $cnt; $i++) {
if (!$to[$i]->host) $to[$i]->host = $domain;
- fputs($stream, 'RCPT TO: <'.$to[$i]->mailbox.'@'.$to[$i]->host.">\r\n");
- $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
+ if ($to[$i]->mailbox) {
+ fputs($stream, 'RCPT TO: <'.$to[$i]->mailbox.'@'.$to[$i]->host.">\r\n");
+ $tmp = fgets($stream, 1024);
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
+ }
}
}
+
for ($i = 0, $cnt = count($cc); $i < $cnt; $i++) {
- if (!$cc[$i]->host) $cc[$i]->host = $domain;
- fputs($stream, 'RCPT TO: <'.$cc[$i]->mailbox.'@'.$cc[$i]->host.">\r\n");
- $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
+ if (!$cc[$i]->host) $cc[$i]->host = $domain;
+ if ($cc[$i]->mailbox) {
+ fputs($stream, 'RCPT TO: <'.$cc[$i]->mailbox.'@'.$cc[$i]->host.">\r\n");
+ $tmp = fgets($stream, 1024);
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
+ }
}
}
for ($i = 0, $cnt = count($bcc); $i < $cnt; $i++) {
- if (!$bcc[$i]->host) $bcc[$i]->host = $domain;
- fputs($stream, 'RCPT TO: <'.$bcc[$i]->mailbox.'@'.$bcc[$i]->host.">\r\n");
- $tmp = fgets($stream, 1024);
- if ($this->errorCheck($tmp, $stream)) {
- return(0);
+ if (!$bcc[$i]->host) $bcc[$i]->host = $domain;
+ if ($bcc[$i]->mailbox) {
+ fputs($stream, 'RCPT TO: <'.$bcc[$i]->mailbox.'@'.$bcc[$i]->host.">\r\n");
+ $tmp = fgets($stream, 1024);
+ if ($this->errorCheck($tmp, $stream)) {
+ return(0);
+ }
}
}
/* Lets start sending the actual message */
function errorCheck($line, $smtpConnection) {
global $color, $compose_new_win;
-
+
/* Read new lines on a multiline response */
$lines = $line;
while(ereg("^[0-9]+-", $line)) {
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 channel';
$status = 0;
break;
- case 235: return(5);
- break;
+ case 235: $message = 'Authentication successful';
+ $status = 5;
+ break;
case 250: $message = 'Requested mail action okay, completed';
$status = 5;
break;
case 251: $message = 'User not local; will forward';
$status = 5;
break;
- case 334: return(5); break;
+ case 334: $message = 'OK - continue request';
+ $status = 5;
+ break;
case 450: $message = 'Requested mail action not taken: mailbox unavailable';
$status = 0;
break;
$status = 0;
break;
/* end RFC2554 */
+ case 535: $message = 'Authentication failed';
+ $status = 0;
+ break;
default: $message = 'Unknown response: '. nl2br(htmlspecialchars($lines));
$status = 0;
$err_num = '001';