encryptChat/Index.java at master · JaisonST/encryptChat · GitHub

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import UIComp.*;
import URLHandler.*;
import AES.*;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.*;

class Users{
	public String username, email, password;
}

public class Index extends Thread{
	static KeyClass aes = new KeyClass();
	static UrlTest server = new UrlTest();
	static Users user = new Users();
	static ArrayList<HashMap<String,String>> chats;
	static ArrayList<HashMap<String,String>> contacts;
	static boolean loginState = false;

	static class DecryptText extends Thread{
		ArrayList<HashMap<String,String>> cs;
		String keyVal;
		public DecryptText(ArrayList<HashMap<String,String>> val, String k){
			cs = val;
			keyVal = k;
		}

		public ArrayList<HashMap<String,String>> getText(){
			return cs;
		}

		@Override
		public void run(){
			for(HashMap<String,String> c:cs){
				String t = c.get("text");
				t = aes.decrypt(t,keyVal);
				c.replace("text", t);
			}
		}

	}
	static class LoginScreen extends LoginScreenUI implements ActionListener{
		public LoginScreen(){
			super();
			btn.addActionListener(this);
		}
		public static String id = "LoginScreen";

		public void actionPerformed(ActionEvent e){
			user.email = username.getText();
			user.password = password.getText();

			boolean res = server.login(user.email,user.password);
			if(res){
				screenSetState(hs.id);
				contacts = server.getContacts(user.email);
				hs.setContacts(contacts);
				username.setText("");
				password.setText("");
			}
			else
				this.setError(true);
		}

	}


	static class HomeScreen extends HomeScreenUI implements ActionListener{
		public HomeScreen(){
			super();
			logout.addActionListener(this);
			send.addActionListener(this);
		}

		public static String id = "HomeScreen";

		public void actionPerformed(ActionEvent e){
			if(e.getSource() == logout){

				user.email = null;
				user.password = null;

				screenSetState(ls.id);
			}
			else{
				String chatText = text.getText();
				if(!chatText.isEmpty()){
					if(!encrypKey.getText().isEmpty())
						chatText = aes.encrypt(chatText,encrypKey.getText());
					String modified = chatText.replace(" ","%20");
					server.sendChat(user.email,"",modified,selectedChat);
					text.setText("");
				}
			}
		}

	}

	static HomeScreen hs = new HomeScreen();
	static LoginScreen ls = new LoginScreen();

	public static void screenSetState(String val){
			if(val.equals(ls.id)){
				loginState = false;
				hs.isVisible(false);
				ls.isVisible(true);
			}else if(val.equals(hs.id)){
				ls.isVisible(false);
				loginState = true;
				hs.isVisible(true);
			}
  	}

	public static void main(String ar[]){
		screenSetState(ls.id);
		Index mainProg = new Index();
		mainProg.start();
	}

	public void run(){
		for(;;){
		  	if(loginState){
				if(hs.selectedChat!=null){
					chats = server.getChats(hs.selectedChat);
					if(!hs.encrypKey.getText().isEmpty()){

						DecryptText d = new DecryptText(chats,hs.encrypKey.getText());
						d.start();

						try{
							d.join();
						}catch (Exception e){

						}
						chats = d.getText();
					}
					hs.setChats(chats, user.email);
				}
			}

			//to ensure nothing crashes
			try{
				Thread.sleep(400);
			}catch(InterruptedException e){}
		}
	}

}