java ssl socket example

By -
ssl socket connection with multi threading application. 

Server



  2. package Test2;

  4. import java.awt.BorderLayout;
  5. import java.awt.event.ActionEvent;
  6. import java.awt.event.ActionListener;
  7. import java.io.IOException;
  8. import java.io.ObjectInputStream;
  9. import java.io.ObjectOutputStream;
  10. import java.net.InetAddress;
  11. import java.security.cert.Certificate;
  12. import java.security.cert.X509Certificate;
  13. import java.util.ArrayList;

  15. import javax.net.ssl.SSLServerSocket;
  16. import javax.net.ssl.SSLServerSocketFactory;
  17. import javax.net.ssl.SSLSession;
  18. import javax.net.ssl.SSLSocket;
  19. import javax.swing.JFrame;
  20. import javax.swing.JOptionPane;
  21. import javax.swing.JScrollPane;
  22. import javax.swing.JTextArea;
  23. import javax.swing.JTextField;

  25. public class Server {
  26. public static ArrayList<String> list_user = new ArrayList<String>();
  27. public static ArrayList<String> list_verify = new ArrayList<String>();
  28. public static int port = 8005;
  29. public static void main(String[] args) {
  30. list_verify.add("101");
  31. list_verify.add("102");
  32. list_verify.add("103");
  33. list_verify.add("104");
  34. list_verify.add("105");
  35. try {
  36. SSLServerSocketFactory factory=(SSLServerSocketFactory) SSLServerSocketFactory.getDefault();
  37.        SSLServerSocket sslserversocket = (SSLServerSocket) factory.createServerSocket(port, 0, InetAddress.getLocalHost());
  38.        System.out.println("Server running in :" + InetAddress.getLocalHost() + ":" + port);
  39.        String[] suites = sslserversocket.getSupportedCipherSuites();
  40.        /*for(String s:suites){
  41.         System.out.println(s);
  42.        }*/
  43.        sslserversocket.setEnabledCipherSuites(suites);
  44.        while (true) {
  45.        SSLSocket socket=(SSLSocket) sslserversocket.accept();
  46. /*       
  47.        SSLSession session = ((SSLSocket) socket).getSession();
  48.        Certificate[] cchain2 = session.getLocalCertificates();*/
  49.       
  50.       
  51. Runnable accept = new Runnable() {
  52. @Override
  53. public void run() {
  54. JFrame frame = new JFrame("Server");
  55. String currentUser="";
  56. try {
  57. ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());
  58. String username = (String) ois.readObject();
  59.    ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());

  61. if (list_verify.contains(username)) {
  62. if (!list_user.contains(username)) {
  63. list_user.add(username);
  64. currentUser=username;
  65. oos.writeObject("1");
  66. System.out.println("connected to : " + username);
  67. //JFrame frame = new JFrame("Server");
  68. frame.addWindowListener(new java.awt.event.WindowAdapter() {
  69.    @Override
  70.    public void windowClosing(java.awt.event.WindowEvent windowEvent) {
  71.     //frame.dispose();
  72.     try {
  73. oos.close();
  74. ois.close();
  75. } catch (IOException e) {

  77. e.printStackTrace();
  78. }
  79.    
  80.    }
  81. });

  83. frame.setVisible(true);
  84. JTextField userText = new JTextField();
  85. userText.setEditable(false);
  86. userText.addActionListener(new ActionListener() {
  87. public void actionPerformed(ActionEvent event) {
  88. sendMessage(oos, event.getActionCommand());
  89. userText.setText("");
  90. }
  91. });
  92. ;

  94. frame.add(userText, BorderLayout.NORTH);
  95. JTextArea chatWindow = new JTextArea();
  96. chatWindow.setEditable(false);
  97. frame.add(new JScrollPane(chatWindow));
  98. frame.setSize(300, 150);
  99. chatWindow.append("connected to : " + username);
  100. userText.setEditable(true);

  102. do {
  103. try {
  104. username = (String) ois.readObject();
  105. chatWindow.append("\n " + username);
  106. } catch (ClassNotFoundException classNotFoundException) {
  107. System.out.println("close");
  108. chatWindow.append("\n Dont know the Object type ");
  109. chatWindow.append("\n connection close.. ");
  110. }

  112. } while (!username.equals("END"));

  114. } else {
  115. oos.writeObject("2");
  116. }
  117. } else {
  118. oos.writeObject("0");
  119. }

  121. } catch (IOException e) {
  122. System.out.println("client disconnected ");
  123. frame.dispose();
  124. list_user.remove(currentUser);
  125. //Thread.currentThread().interrupt();
  126. // chatWindow.append("Diss");
  127. // userText.setEditable(false);
  128. // e.printStackTrace();
  129. } catch (ClassNotFoundException e) {
  130. e.printStackTrace();

  132. }

  134. }};
  135. new Thread(accept).start();
  136.        }
  137. } catch (IOException e) {
  138. JOptionPane.showMessageDialog(null, "Server already running in the same port");
  139. System.out.println("Ip and port Already bind");
  140. }
  141.      

  143. }
  144. public static void sendMessage(ObjectOutputStream oos, String message) {
  145. try {
  146. oos.writeObject(message);
  147. } catch (IOException e) {
  148. e.printStackTrace();
  149. }
  150. }

  152. }

Client



  2. package Test2;

  4. import java.awt.BorderLayout;
  5. import java.awt.event.ActionEvent;
  6. import java.awt.event.ActionListener;
  7. import java.io.IOException;
  8. import java.io.ObjectInputStream;
  9. import java.io.ObjectOutputStream;
  10. import java.net.UnknownHostException;

  12. import javax.net.ssl.HandshakeCompletedEvent;
  13. import javax.net.ssl.HandshakeCompletedListener;
  14. import javax.net.ssl.SSLSocket;
  15. import javax.net.ssl.SSLSocketFactory;
  16. import javax.swing.JFrame;
  17. import javax.swing.JOptionPane;
  18. import javax.swing.JScrollPane;
  19. import javax.swing.JTextArea;
  20. import javax.swing.JTextField;

  22. public class Client {

  24. public static void main(String[] args) {
  25. String host = "localhost";
  26. int port = 8005;
  27. String username = JOptionPane.showInputDialog(null, "IP: " + host + ":" + port);
  28. JFrame frame = new JFrame("Client");
  29. try {

  31. SSLSocketFactory factory = (SSLSocketFactory) SSLSocketFactory.getDefault();
  32. SSLSocket socket = (SSLSocket) factory.createSocket(host, port);

  34. String[] suites = socket.getSupportedCipherSuites();
  35. socket.setEnabledCipherSuites(suites);

  37. socket.addHandshakeCompletedListener(new MyHandshakeListener());
  38. socket.startHandshake();

  40. System.out.println("Just connected to " + socket.getRemoteSocketAddress());
  41. ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());
  42. oos.writeObject(username);

  44. ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());
  45. String response = (String) ois.readObject();
  46. //JFrame frame = new JFrame("Client");
  47. frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  48. frame.setVisible(true);
  49. JTextField userText = new JTextField();
  50. userText.setEditable(false);
  51. userText.addActionListener(new ActionListener() {
  52. public void actionPerformed(ActionEvent event) {
  53. sendMessage(oos, event.getActionCommand());
  54. userText.setText("");
  55. }
  56. });
  57. ;

  59. frame.add(userText, BorderLayout.NORTH);
  60. JTextArea chatWindow = new JTextArea();
  61. chatWindow.setEditable(false);
  62. frame.add(new JScrollPane(chatWindow));
  63. frame.setSize(300, 150);
  64. if (response.equalsIgnoreCase("1")) {
  65. chatWindow.append("connected......");
  66. userText.setEditable(true);
  67. do {
  68. try {
  69. response = (String) ois.readObject();
  70. chatWindow.append("\n " + response);
  71. } catch (ClassNotFoundException classNotFoundException) {
  72. chatWindow.append("\n Dont know the Object type ");
  73. chatWindow.append("\n connection close.. ");
  74. }

  76. } while (!response.equals(" END"));
  77. }
  78. if (response.equalsIgnoreCase("0")) {
  79. chatWindow.append("\n refused , not authorised....");
  80. }
  81. if (response.equalsIgnoreCase("2")) {
  82. frame.dispose();
  83. JOptionPane.showMessageDialog(null, "already connected");
  84. }

  86. } catch (UnknownHostException e) {
  87. // TODO Auto-generated catch block
  88. e.printStackTrace();
  89. } catch (IOException e) {
  90. frame.dispose();
  91. }
  92.  catch (ClassNotFoundException e) {
  93. // TODO Auto-generated catch block
  94. e.printStackTrace();
  95. }
  96. }
  97. public static void sendMessage(ObjectOutputStream oos, String message) {
  98. try {
  99. oos.writeObject(message);
  100. } catch (IOException e) {
  101. // TODO Auto-generated catch block
  102. e.printStackTrace();
  103. }
  104. }

  106. }
  107. class MyHandshakeListener implements HandshakeCompletedListener {
  108.   public void handshakeCompleted(HandshakeCompletedEvent e) {
  109.     System.out.println("Handshake succesful!");
  110.     System.out.println("Using cipher suite: " + e.getCipherSuite());
  111.   }
  112. }
  113.    

Comments

Post a Comment

Popular posts from this blog

Today Walkin 14th-Sept

By -
Image
14th Sept 2017 ( GO Through all List) Read Walkin details properly , Try to call company before attending if possible !!! ==================================== 1. Myntra through fresherworld (Call Based , Venue shared to shortlisted candidates) _____________________________ 2. Magna : Hiring for Client Harman : C++
Read more

Hibernate Search - Elasticsearch with JSON manipulation

By -
Elasticsearch with JSON manipulation Elasticsearch ships with many features. It is possible that at some point, one feature you need will not be exposed by the Search DSL. To work around such limitations, Hibernate Search provides ways to: Transform the HTTP request sent to Elasticsearch for search queries. Read the raw JSON of the HTTP response received from Elasticsearch for search queries. Direct changes to the HTTP request may conflict with Hibernate Search features and be supported differently by different versions of Elasticsearch. Similarly, the content of the HTTP response may change depending on the version of Elasticsearch, depending on which Hibernate Search features are used, and even depending on how Hibernate Search features are implemented. Thus, features relying on direct access to HTTP requests or responses cannot be guaranteed to continue to work when upgrading Hibernate Search, even for micro upgrades (x.y.z to x.y.(z+1)). Use this at your own risk.
Read more

Spring Elasticsearch Operations

By -
Elasticsearch Operations Spring Data Elasticsearch uses two interfaces to define the operations that can be called against an Elasticsearch index. These are ElasticsearchOperations and ReactiveElasticsearchOperations. Whereas the first is used with the classic synchronous implementations, the second one uses reactive infrastructure. The default implementations of the interfaces offer: Read/Write mapping support for domain types. A rich query and criteria api. Resource management and Exception translation. ElasticsearchTemplate The ElasticsearchTemplate is an implementation of the ElasticsearchOperations interface using the Transport Client. @Configuration public class TransportClientConfig extends ElasticsearchConfigurationSupport {   @Bean   public Client elasticsearchClient() throws UnknownHostException {                      Settings settings = Settings.builder().put("cluster.name", "elasticsearch").build();     TransportClient client = new P
Read more