functions.inc.php: reindent (as per inline vim settings) and add in flash_error calls when validating an email address (I suspect the strings need changing as per translation issues)

git-svn-id: https://svn.code.sf.net/p/postfixadmin/code/trunk@426 a1433add-5e2c-0410-b055-b7f2511e0802

functions.inc.php

@@ -260,11 +260,8 @@ function check_email ($email)
       $ce_email = preg_replace("/#/", '@', $ce_email);
    }
 
-   if (
-      isset($CONF['emailcheck_resolve_domain'])
-      && 'YES'==$CONF['emailcheck_resolve_domain']
-      && 'WINDOWS'!=(strtoupper(substr(php_uname('s'), 0, 7)))
-         ) {
+   if (isset($CONF['emailcheck_resolve_domain']) && 'YES' == $CONF['emailcheck_resolve_domain'] && 'WINDOWS'!=(strtoupper(substr(php_uname('s'), 0, 7)))) 
+   {
 
       // Perform non-domain-part sanity checks
       if (!preg_match ('/^[-!#$%&\'*+\\.\/0-9=?A-Z^_{|}~]+' . '@' . '[^@]+$/i', trim ($ce_email)))
@@ -290,20 +287,21 @@ function check_email ($email)
          }
          if (checkdnsrr($domain,'A')) return true;
          if (checkdnsrr($domain,'MX')) return true;
-            }
-            # TODO: different error message for non-existing domains (instead of "email is invalid")
+         flash_error("Invalid domain, and/or not discoverable in DNS");
          return false;
       }
+      else {
+         flash_error("emailcheck_resolve_domain is enabled, but function (checkdnsrr) missing!");
+      }
+   }
 
    if (preg_match ('/^[-!#$%&\'*+\\.\/0-9=?A-Z^_{|}~]+' . '@' . '([-0-9A-Z]+\.)+' . '([0-9A-Z]){2,6}$/i', trim ($ce_email)))
    {
       return true;
    }
-   else
-   {
+   flash_error("Invalid email address, fails regexp check");
    return false;
 }
-}