com.razorpay.CustomTLSSocketFactory Maven / Gradle / Ivy

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package com.razorpay;

import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;

import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;

class CustomTLSSocketFactory extends SSLSocketFactory {

  private SSLSocketFactory internalSSLSocketFactory;

  CustomTLSSocketFactory() throws KeyManagementException, NoSuchAlgorithmException {
    SSLContext context = SSLContext.getInstance("TLSv1.2");
    context.init(null, null, null);
    internalSSLSocketFactory = context.getSocketFactory();
  }

  @Override
  public String[] getDefaultCipherSuites() {
    return internalSSLSocketFactory.getDefaultCipherSuites();
  }

  @Override
  public String[] getSupportedCipherSuites() {
    return internalSSLSocketFactory.getSupportedCipherSuites();
  }

  @Override
  public Socket createSocket() throws IOException {
    return enableTLSOnSocket(internalSSLSocketFactory.createSocket());
  }

  @Override
  public Socket createSocket(Socket s, String host, int port, boolean autoClose)
      throws IOException {
    return enableTLSOnSocket(internalSSLSocketFactory.createSocket(s, host, port, autoClose));
  }

  @Override
  public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
    return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port));
  }

  @Override
  public Socket createSocket(String host, int port, InetAddress localHost, int localPort)
      throws IOException, UnknownHostException {
    return enableTLSOnSocket(
        internalSSLSocketFactory.createSocket(host, port, localHost, localPort));
  }

  @Override
  public Socket createSocket(InetAddress host, int port) throws IOException {
    return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port));
  }

  @Override
  public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort)
      throws IOException {
    return enableTLSOnSocket(
        internalSSLSocketFactory.createSocket(address, port, localAddress, localPort));
  }

  private Socket enableTLSOnSocket(Socket socket) {
    if (socket != null && (socket instanceof SSLSocket)) {
      ((SSLSocket) socket).setEnabledProtocols(new String[] {"TLSv1.1", "TLSv1.2"});
    }
    return socket;
  }
}