content: /*
   * Inkless
   * Copyright (C) 2024 - 2025 Aiven OY
   *
   * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Affero General Public License as published by
   * the Free Software Foundation, either version 3 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU Affero General Public License for more details.
   *
   * You should have received a copy of the GNU Affero General Public License
   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
   */
  package io.aiven.inkless.common.config.validators;
  
  import org.apache.kafka.common.config.ConfigDef;
  import org.apache.kafka.common.config.ConfigException;
  
  import com.groupcdg.pitest.annotations.CoverageIgnore;
  
  import java.net.MalformedURLException;
  import java.net.URL;
  import java.util.List;
  
  /**
   * {@link ConfigDef.Validator} implementation that verifies that a config value is
   * a valid URL with http or https schemes.
   */
  public class ValidUrl implements ConfigDef.Validator {
      private static final List<String> SUPPORTED_SCHEMAS = List.of("http", "https");
  
      @Override
      public void ensureValid(final String name, final Object value) {
          if (value != null) {
              try {
                  final var url = new URL((String) value);
                  if (!SUPPORTED_SCHEMAS.contains(url.getProtocol())) {
                      throw new ConfigException(name, value, "URL must have scheme from the list " + SUPPORTED_SCHEMAS);
                  }
              } catch (final MalformedURLException e) {
                  throw new ConfigException(name, value, "Must be a valid URL");
              }
          }
      }
  
      @CoverageIgnore
      @Override
      public String toString() {
          return "Valid URL as defined in rfc2396";
      }
  }
  