- added 'smtp_debug' option

CHANGELOG

@@ -5,7 +5,7 @@ CHANGELOG RoundCube Webmail
 - Added hook to write_log function (#1485971)
 - Performance improvements by use UID commands (#1485690)
 - Fix HTML editor tabIndex setting (#1485972)
-- Added 'imap_debug' option
+- Added 'imap_debug' and 'smtp_debug' options
 - Support strftime's format modifiers in date_* options (#1484806)
 - Support %h variable in 'smtp_server' option (#1485766)
 - Show SMTP errors in browser (#1485927)

config/main.inc.php.dist

@@ -130,6 +130,9 @@ $rcmail_config['sql_debug'] = false;
 // Log IMAP conversation to <log_dir>/imap or to syslog
 $rcmail_config['imap_debug'] = false;
 
+// Log SMTP conversation to <log_dir>/smtp or to syslog
+$rcmail_config['smtp_debug'] = false;
+
 // How many seconds must pass between emails sent by a user
 $rcmail_config['sendmail_delay'] = 0;
 

program/include/rcube_smtp.inc

@@ -92,6 +92,9 @@ function smtp_mail($from, $recipients, &$headers, &$body, &$response, &$error)
 
     $SMTP_CONN = new Net_SMTP($smtp_host, $smtp_port, $helo_host);
 
+    if($RCMAIL->config->get('smtp_debug'))
+      $SMTP_CONN->setDebug(true, 'smtp_debug_handler');
+
     // try to connect to server and exit on failure
     $result = $SMTP_CONN->connect($smtp_timeout);
     if (PEAR::isError($result))
@@ -247,6 +250,12 @@ function smtp_disconnect()
     }
   }
 
+/* this is our own debug handler for the SMTP connection */
+function smtp_debug_handler(&$smtp, $message)
+  {
+  write_log('smtp', preg_replace('/\r\n$/', '', $message));
+  }
+
 
 /**
  * Take an array of mail headers and return a string containing