From e4acbbd8cc02b960bd5240538016b2c69c33d6bd Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Wed, 14 Oct 2009 10:52:27 +0000
Subject: - Added server-side e-mail address validation with 'email_dns_check'
 option (#1485857)

---
 program/steps/mail/sendmail.inc | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

(limited to 'program/steps/mail/sendmail.inc')

diff --git a/program/steps/mail/sendmail.inc b/program/steps/mail/sendmail.inc
index e8ef47a55..e8445aa4c 100644
--- a/program/steps/mail/sendmail.inc
+++ b/program/steps/mail/sendmail.inc
@@ -151,6 +151,8 @@ function rcmail_attach_emoticons(&$mime_message)
 // parse email address input
 function rcmail_email_input_format($mailto)
 {
+  global $EMAIL_FORMAT_ERROR;
+
   $regexp = array('/[,;]\s*[\r\n]+/', '/[\r\n]+/', '/[,;]\s*$/m', '/;/', '/(\S{1})(<\S+@\S+>)/U');
   $replace = array(', ', ', ', '', ',', '\\1 \\2');
 
@@ -181,8 +183,16 @@ function rcmail_email_input_format($mailto)
         $address = '<'.$address.'>';
 
       $result[] = $name.' '.$address;
+      $item = $address;
     } else if (trim($item)) {
-      // @TODO: handle errors
+      continue;
+    }
+
+    // check address format
+    $item = trim($item, '<>');
+    if ($item && !check_email($item)) {
+      $EMAIL_FORMAT_ERROR = $item;
+      return;
     }
   }
 
@@ -200,10 +210,17 @@ $message_id = sprintf('<%s@%s>', md5(uniqid('rcmail'.mt_rand(),true)), $RCMAIL->
 $input_charset = $OUTPUT->get_charset();
 $message_charset = isset($_POST['_charset']) ? $_POST['_charset'] : $input_charset;
 
+$EMAIL_FORMAT_ERROR = NULL;
+
 $mailto = rcmail_email_input_format(get_input_value('_to', RCUBE_INPUT_POST, TRUE, $message_charset));
 $mailcc = rcmail_email_input_format(get_input_value('_cc', RCUBE_INPUT_POST, TRUE, $message_charset));
 $mailbcc = rcmail_email_input_format(get_input_value('_bcc', RCUBE_INPUT_POST, TRUE, $message_charset));
 
+if ($EMAIL_FORMAT_ERROR) {
+  $OUTPUT->show_message('emailformaterror', 'error', array('email' => $EMAIL_FORMAT_ERROR)); 
+  $OUTPUT->send('iframe');
+}
+
 if (empty($mailto) && !empty($mailcc)) {
   $mailto = $mailcc;
   $mailcc = null;
-- 
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