modules/greylisting/save.php
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 <?php
 require_once('inc/debug.php');
 require_once('inc/security.php');
 
 require_once('greylisting.php');
 
 
 if ($_GET['action'] == 'delete')
 {
   $entry = get_whitelist_details($_GET['id']);
   $sure = user_is_sure();
   if ($sure === NULL)
   {
     are_you_sure("action=delete&amp;id={$entry['id']}", "Möchten Sie die E-Mail-Adresse »{$entry['local']}@{$entry['domain']}« von der Ausnahmeliste entfernen?");
   }
   elseif ($sure === true)
   {
     delete_from_whitelist($entry['id']);
     if (! $debugmode)
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       header("Location: whitelist");
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   }
   elseif ($sure === false)
   {
     if (! $debugmode)
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       header("Location: whitelist");
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   }
 }
 elseif ($_GET['action'] == 'add')
 {
 	check_form_token('greylisting_add');
 	if ( !filter_var($_POST['address'], FILTER_VALIDATE_EMAIL )
 		&& !filter_var("x@".$_POST['address'], FILTER_VALIDATE_EMAIL) )
 		system_failure("Sie haben eine ungültige Mailadresse eingegeben.");
 	$local = false;
 	$domain = '';
 	$at = strrpos($_POST['address'], '@');
 	if ($at === false)
 		$domain = $_POST['address'];
 	else
 	{
 		$local = substr($_POST['address'], 0, $at);
 		$domain = substr($_POST['address'], $at+1);
 	}
 	DEBUG("Whitelisting {$local}@{$domain} for {$_POST['expire']} minutes");
 	new_whitelist_entry($local, $domain, $_POST['expire']);
 	if (! $debugmode)	
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 		header("Location: whitelist");
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 }
 
 ?>