Java/Network Protocol/Authenticator

Authenticator.setDefault(new Authenticator());

   <source lang="java">

import java.io.BufferedReader; import java.io.InputStreamReader; import java.net.Authenticator; import java.net.InetAddress; import java.net.PasswordAuthentication; import java.net.URL; public class Main {

 public static void main(String[] argv) throws Exception {
   Authenticator.setDefault(new MyAuthenticator());
   URL url = new URL("http://hostname:80/index.html");
   BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
   String str;
   while ((str = in.readLine()) != null) {
     System.out.println(str);
   }
   in.close();
 }

} class MyAuthenticator extends Authenticator {

 protected PasswordAuthentication getPasswordAuthentication() {
   String promptString = getRequestingPrompt();
   System.out.println(promptString);
   String hostname = getRequestingHost();
   System.out.println(hostname);
   InetAddress ipaddr = getRequestingSite();
   System.out.println(ipaddr);
   int port = getRequestingPort();
   String username = "name";
   String password = "password";
   return new PasswordAuthentication(username, password.toCharArray());
 }

}

 </source>
   
  
 
  

Identify yourself using HTTP Authentification

   <source lang="java">

import java.io.InputStream; import java.net.URL; import java.net.URLConnection; public class Main {

 public static void main(String[] argv) throws Exception {
   
   URLConnection conn = new URL("http://www.yourserver.ru").openConnection();
   conn.setDoInput(true);
   conn.setRequestProperty("Authorization", "asdfasdf");
   conn.connect();
   InputStream in = conn.getInputStream();
 }

}

 </source>
   
  
 
  

InetAddress java.net.Authenticator.getRequestingSite()

   <source lang="java">

import java.io.BufferedReader; import java.io.InputStreamReader; import java.net.Authenticator; import java.net.InetAddress; import java.net.PasswordAuthentication; import java.net.URL; public class Main {

 public static void main(String[] argv) throws Exception {
   Authenticator.setDefault(new MyAuthenticator());
   URL url = new URL("http://hostname:80/index.html");
   BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
   String str;
   while ((str = in.readLine()) != null) {
     System.out.println(str);
   }
   in.close();
 }

} class MyAuthenticator extends Authenticator {

 protected PasswordAuthentication getPasswordAuthentication() {
   String promptString = getRequestingPrompt();
   System.out.println(promptString);
   String hostname = getRequestingHost();
   System.out.println(hostname);
   InetAddress ipaddr = getRequestingSite();
   System.out.println(ipaddr);
   int port = getRequestingPort();
   String username = "name";
   String password = "password";
   return new PasswordAuthentication(username, password.toCharArray());
 }

}

 </source>
   
  
 
  

int java.net.Authenticator.getRequestingPort()

   <source lang="java">

import java.io.BufferedReader; import java.io.InputStreamReader; import java.net.Authenticator; import java.net.InetAddress; import java.net.PasswordAuthentication; import java.net.URL; public class Main {

 public static void main(String[] argv) throws Exception {
   Authenticator.setDefault(new MyAuthenticator());
   URL url = new URL("http://hostname:80/index.html");
   BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
   String str;
   while ((str = in.readLine()) != null) {
     System.out.println(str);
   }
   in.close();
 }

} class MyAuthenticator extends Authenticator {

 protected PasswordAuthentication getPasswordAuthentication() {
   String promptString = getRequestingPrompt();
   System.out.println(promptString);
   String hostname = getRequestingHost();
   System.out.println(hostname);
   InetAddress ipaddr = getRequestingSite();
   System.out.println(ipaddr);
   int port = getRequestingPort();
   String username = "name";
   String password = "password";
   return new PasswordAuthentication(username, password.toCharArray());
 }

}

 </source>
   
  
 
  

java.net.PasswordAuthentication.PasswordAuthentication(String userName, char[] password)

   <source lang="java">

import java.io.BufferedReader; import java.io.InputStreamReader; import java.net.Authenticator; import java.net.InetAddress; import java.net.PasswordAuthentication; import java.net.URL; public class Main {

 public static void main(String[] argv) throws Exception {
   Authenticator.setDefault(new MyAuthenticator());
   URL url = new URL("http://hostname:80/index.html");
   BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
   String str;
   while ((str = in.readLine()) != null) {
     System.out.println(str);
   }
   in.close();
 }

} class MyAuthenticator extends Authenticator {

 protected PasswordAuthentication getPasswordAuthentication() {
   String promptString = getRequestingPrompt();
   System.out.println(promptString);
   String hostname = getRequestingHost();
   System.out.println(hostname);
   InetAddress ipaddr = getRequestingSite();
   System.out.println(ipaddr);
   int port = getRequestingPort();
   String username = "name";
   String password = "password";
   return new PasswordAuthentication(username, password.toCharArray());
 }

}

 </source>
   
  
 
  

String java.net.Authenticator.getRequestingHost()

   <source lang="java">

import java.io.BufferedReader; import java.io.InputStreamReader; import java.net.Authenticator; import java.net.InetAddress; import java.net.PasswordAuthentication; import java.net.URL; public class Main {

 public static void main(String[] argv) throws Exception {
   Authenticator.setDefault(new MyAuthenticator());
   URL url = new URL("http://hostname:80/index.html");
   BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
   String str;
   while ((str = in.readLine()) != null) {
     System.out.println(str);
   }
   in.close();
 }

} class MyAuthenticator extends Authenticator {

 protected PasswordAuthentication getPasswordAuthentication() {
   String promptString = getRequestingPrompt();
   System.out.println(promptString);
   String hostname = getRequestingHost();
   System.out.println(hostname);
   InetAddress ipaddr = getRequestingSite();
   System.out.println(ipaddr);
   int port = getRequestingPort();
   String username = "name";
   String password = "password";
   return new PasswordAuthentication(username, password.toCharArray());
 }

}

 </source>
   
  
 
  

String java.net.Authenticator.getRequestingPrompt()

   <source lang="java">

import java.io.BufferedReader; import java.io.InputStreamReader; import java.net.Authenticator; import java.net.InetAddress; import java.net.PasswordAuthentication; import java.net.URL; public class Main {

 public static void main(String[] argv) throws Exception {
   Authenticator.setDefault(new MyAuthenticator());
   URL url = new URL("http://hostname:80/index.html");
   BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
   String str;
   while ((str = in.readLine()) != null) {
     System.out.println(str);
   }
   in.close();
 }

} class MyAuthenticator extends Authenticator {

 protected PasswordAuthentication getPasswordAuthentication() {
   String promptString = getRequestingPrompt();
   System.out.println(promptString);
   String hostname = getRequestingHost();
   System.out.println(hostname);
   InetAddress ipaddr = getRequestingSite();
   System.out.println(ipaddr);
   int port = getRequestingPort();
   String username = "name";
   String password = "password";
   return new PasswordAuthentication(username, password.toCharArray());
 }

}

 </source>