/*
    * junixsocket
    *
    * Copyright 2009-2026 Christian Kohlschütter
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.newsclub.net.mysql;
  
  import java.io.File;
  import java.io.IOException;
  import java.net.Socket;
  import java.net.SocketException;
  import java.util.Properties;
  
  import org.newsclub.net.unix.AFUNIXSocket;
  import org.newsclub.net.unix.AFUNIXSocketAddress;
  
  import com.kohlschutter.annotations.compiletime.SuppressFBWarnings;
  import com.mysql.jdbc.SocketFactory;
  
  /**
   * Connect to mysql databases (and compatibles) using UNIX domain sockets.
   *
   * NOTE: This SocketFactory currently implements the "old" Connector/J SocketFactory. This may
   * change in the future.
   *
   * For the time being, see AFUNIXDatabaseSocketFactoryCJ to forcibly use the new "CJ"-style
   * SocketFactory.
   *
   * @see AFUNIXDatabaseSocketFactoryCJ
   */
  @SuppressWarnings("deprecation")
  public class AFUNIXDatabaseSocketFactory implements SocketFactory {
    private Socket socket = null;
  
    /**
     * Creates a new instance.
     */
    public AFUNIXDatabaseSocketFactory() {
    }
  
    @Override
    @SuppressFBWarnings("EI_EXPOSE_REP")
    public Socket afterHandshake() throws SocketException, IOException {
      return socket;
    }
  
    @Override
    @SuppressFBWarnings("EI_EXPOSE_REP")
    public Socket beforeHandshake() throws SocketException, IOException {
      return socket;
    }
  
    @Override
    @SuppressFBWarnings({"EI_EXPOSE_REP", "PATH_TRAVERSAL_IN"})
    public Socket connect(String host, int portNumber, Properties props) throws SocketException,
        IOException {
      // Adjust the path to your MySQL socket by setting the
      // "junixsocket.file" property
      // If no socket path is given, use the default: /tmp/mysql.sock
      final File socketFile = new File(props.getProperty("junixsocket.file", "/tmp/mysql.sock"));
  
      socket = AFUNIXSocket.connectTo(AFUNIXSocketAddress.of(socketFile));
      return socket;
    }
  }