package com.ora.rmibook.chapter2.ssl;
import com.ora.rmibook.gui.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import java.io.*;
import java.net.*;
import javax.net.ssl.*;
/*
This isn't quite good enough because web browsers insist on
authenticating servers.
*/
public class SSLWebServerFrame extends ExitingFrame {
private static String ANON_CIPHER_1 = "SSL_DH_anon_WITH_DES_CBC_SHA";
private static String ANON_CIPHER_2 = "SSL_DH_anon_WITH_3DES_EDE_CBC_SHA";
private static String ANON_CIPHER_3 = "SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA";
private static String ANON_CIPHER_4 = "SSL_DH_anon_WITH_RC4_128_MD5";
private static String ANON_CIPHER_5 = "SSL_DH_anon_EXPORT_WITH_RC4_40_MD5";
private static String[] CIPHERS = {ANON_CIPHER_1, ANON_CIPHER_2, ANON_CIPHER_3,
ANON_CIPHER_4, ANON_CIPHER_5};
static {
java.security.Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
}
private JTextArea _displayArea;
public void startListening() {
ServerSocket serverSocket;
try {
serverSocket = getSSLServerSocket(443);
} catch (IOException e) {
return;
}
while (true) {
try {
Socket client = serverSocket.accept(); // wait here
processClientRequest(client);
//bad design-- should handle requests in separate threads
// and immediately resume listening for connections client.close();
} catch (IOException e) {
}
}
}
private void processClientRequest(Socket client) throws IOException {
_displayArea.append("Client connected from port " +
client.getPort() + " on machine " + client.getInetAddress() + "\n");
_displayArea.append("Request is: \n");
readRequest(client);
sendResponse(client);
client.close();
}
private void readRequest(Socket client) throws IOException {
BufferedReader request = null;
request = new BufferedReader(new InputStreamReader(client.getInputStream()));
String nextLine;
while (null != (nextLine = request.readLine())) {
// Ideally, we'd do something. But this is a very
// simple web server.
if (nextLine.equals("")) {
break;
} else {
_displayArea.append("\t" + nextLine + "\n");
}
}
_displayArea.append("---------------------------------------\n");
return;
}
private void sendResponse(Socket client) throws IOException {
BufferedWriter response;
response = new BufferedWriter(new OutputStreamWriter(client.getOutputStream()));
response.write(_mainPage);
response.flush();
}
protected void buildGUI() {
JPanel newContentPane = new JPanel(new BorderLayout());
newContentPane.add(buildMainPanel(), BorderLayout.CENTER);
setContentPane(newContentPane);
setSize(250, 300);
}
private JComponent buildMainPanel() {
_displayArea = new JTextArea();
_displayArea.setLineWrap(true);
JScrollPane scrollPane = new JScrollPane(_displayArea);
scrollPane.setBorder(new EtchedBorder());
return scrollPane;
}
private ServerSocket getSSLServerSocket(int port) throws IOException {
SSLServerSocketFactory socketFactory = (SSLServerSocketFactory) SSLServerSocketFactory.getDefault();
SSLServerSocket returnValue = (SSLServerSocket) socketFactory.createServerSocket(port);
returnValue.setEnabledCipherSuites(CIPHERS);
returnValue.setNeedClientAuth(false);
returnValue.setEnableSessionCreation(true);
return returnValue;
}
private static final String _mainPage =
"HTTP/1.0 200 OK\n" +
"Content-type: text/html\n" +
"Connection: close\n" +
"\n<HTML>\n" +
"<HEAD>\n" +
"<TITLE>Hello World</TITLE>\n" +
"</HEAD>\n" +
"<BODY> <a href = \"localhost\"> Hello World </a></BODY>\n" +
"</HTML> \n\n";
}
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