/**     * block     */
 function saveImportAntiSpamIp($post)
 {
     ExtraWatchInput::validate(_EW_INPUT_FILE_NAME, $_FILES);
     if ($_FILES["file"]["type"] == "application/octet-stream") {
         ///
         if ($_FILES["file"]["error"] > 0) {
             echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
             return;
         }
     }
     if (!ExtraWatchHelper::endsWith($_FILES["file"]["name"], ".csv")) {
         echo _EW_ANTISPAM_INVALID_EXTENSION;
         return;
     }
     $uploadedFilePath = JPATH_BASE . "/" . $_FILES["file"]["name"];
     ///
     move_uploaded_file($_FILES["file"]["tmp_name"], $uploadedFilePath);
     ///
     set_time_limit(0);
     $handle = fopen($uploadedFilePath, "r");
     if (!$handle) {
         return "Error: it was not possible to open uploaded file from: " . $uploadedFilePath;
     }
     $errorMessages = array();
     $i = 0;
     while (($data = stream_get_line($handle, 1024, ",")) !== FALSE) {
         $ip = $data;
         if ($ip != 'ip') {
             if (!ExtraWatchHelper::isValidIPv4($ip)) {
                 $errorMessages[] = "{$ip} is not a valid IP address!";
                 continue;
             }
             $ipArray[] = $ip;
         }
         if ($i % self::IP_BULK_IMPORT_SIZE == self::IP_BULK_IMPORT_SIZE - 1) {
             //flushing array when it has particular size to DB
             $this->flushIPBulkFromArray($ipArray);
             $ipArray = array();
         }
         $i++;
     }
     $this->flushIPBulkFromArray($ipArray);
     fclose($handle);
     unlink($uploadedFilePath);
     return implode("\n", $errorMessages);
 }