Chatting Application

8/14/2019 Chatting Application

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Chatting Application

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Description : This is a Chatting application similar to Messenger. The program isdivided in two parts. Server & Client

://////////************ SERVER CODE ENDS*************////////////////

import java.net.*;import java.io.*;import java.awt.*;import java.awt.event.*;import javax.swing.*;

////////************* Main Class **************class S_CHAT{

public static int CPort, S_Client_No,DPort;

public static void main(String[] arg){

System.out.println("Initializing ChattingServer...");

System.out.println("Default binding port no :2000.");

System.out.println("Maximum 15 users can log at atime.");

MainFrame MF= new MainFrame();MF.show();

}

}

////////************* Main Class Ends **************

////////************* Client info Class **************class CLIENT_INFO{

String Cli_name;Socket Cli_Cmd;//Cli_Data;

CLIENT_INFO(String s, Socket C){

Cli_name=s;Cli_Cmd=C;

//Cli_Data=D;}

}////////************* Client info Class Ends **************

////////************* Servers Gui Class **************class MainFrame extends Frame implements ActionListener{

JLabel l,ul;JTextField P,B_M;


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public static JButton S,CW,Broad;public static CLIENT_INFO C_INFO[]=new CLIENT_INFO[15];public static List UL;public static TextArea T;

MainFrame(){

super("MadMan Chatting Server");

setSize(500,550);setLayout(null);addWindowListener(new WindowAdapter (){public void windowClosing (WindowEvent e)

{ System.exit(0); } } );

l=new JLabel("Listen at Port:");add(l);l.setBounds(10,30,100,20);

P=new JTextField("2000");add(P);P.setBounds(120,30,60,20);

S=new JButton("Start");add(S);S.setBounds(200,28,80,25);S.addActionListener(this);

T=new TextArea("MadMan ChattingServer...STARTED",25,50,1);

add(T);T.setBounds(10,60,350,440);T.setEditable(false);

ul = new JLabel("On Line Users");

add(ul);ul.setBounds(370,60,120,20);

UL=new List(25);add(UL);UL.setBounds(370,80,120,390);

B_M=new JTextField("Server Broadcast Message.");add(B_M);B_M.setBounds(10,515,350,20);

Broad=new JButton("Broadcast Msg.");add(Broad);

Broad.setBounds(370,512,120,25);Broad.addActionListener(this);

CW=new JButton("Message To...");add(CW);CW.setBounds(370,475,120,25);CW.setVisible(false);CW.addActionListener(this);

}


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public void actionPerformed(ActionEvent AE){

if(AE.getSource()==S){

UL.addItem("[MAD_MAN]");C_INFO[0]=new

CLIENT_INFO("[MAD_MAN]",null);try

{S_CHAT.CPort=Integer.parseInt

(P.getText());}catch(Exception E){}S_CHAT.DPort=S_CHAT.CPort+1000;

new THBind(S_CHAT.CPort);

if(UL.getItemCount()>0)CW.setVisible(true);

}if(AE.getSource()==CW){

Stringmsg=JOptionPane.showInputDialog("Enter the Message:");

if(!(msg==null))if(!(UL.getSelectedItem()==null

)){

System.out.println("Message : "+msg+" to : "+UL.getSelectedIndex());

send_msg(msg,UL.getSelectedIndex());

}elseJOptionPane.showMessageDialog(

this,"No Client Selected","Alert",JOptionPane.INFORMATION_MESSAGE);

}if(AE.getSource()==Broad){

for(intt=0;t0){

try{o = new

PrintWriter(MainFrame.C_INFO[TO].Cli_Cmd.getOutputStream(),true);o.println("S_MSG");


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o.println(m);

}catch(Exception E){}

}elseJOptionPane.showMessageDialog(this,m,"Server Message",

JOptionPane.INFORMATION_MESSAGE);

}

}////////************* Servers Gui Class Ends **************

////////************* Connection Handling (Thread) Class **************class THBind extends Frame implements Runnable{

Thread BT;int dport,cport;

static int i=1;static ServerSocket server_CSocket,server_DSocket;

public THBind(int cp){BT=new Thread(this);cport=cp;

dport=S_CHAT.DPort;BT.start();

}

public void run(){

MainFrame.S.setVisible(false);if (cport


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MainFrame.T.append("New connection accepted " +CSocket.getInetAddress() + ":" + CSocket.getPort());

new Client_P(CSocket,i);i++;} //while} //try

catch (IOException e) {System.out.println(e);

}}

}//bind

} //class THBind////////************* Connection Handling (Thread) Class Ends**************

////////************* Client Handling (Thread) Class **************class Client_P extends Frame implements Runnable{

Thread t;int ci;private Socket c_s;String uname="Anonymous",pass;

BufferedReader C_input;PrintWriter C_output;

PrintWriter r=null,a=null;BufferedReader r1=null,a1=null;

public Client_P(Socket C,int i)

{t=new Thread(this);c_s = C;ci=i;t.start();}public void run(){

int check=login();

while(check!=1)check=login();

if (check==1){

System.out.println("OK...");C_output.println("U_E");

MainFrame.C_INFO[ci]=newCLIENT_INFO(uname,c_s);

MainFrame.UL.addItem(uname);MainFrame.T.append("
+MainFr


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ame.C_INFO[ci].Cli_name);MainFrame.T.append("
+MainFr

ame.C_INFO[ci].Cli_Cmd);

System.out.println("Broadcasting List...");

BROADCAST_LIST();

System.out.println(" ListBroadCasted");

System.out.println("ReadingClients");

System.out.println(THBind.i);int i=1;try{while(i==1){

Stringl=C_input.readLine();

i=Manipulate(l

);if(i==2){

System.out.println("Enterting MSG_READER thread");

new MSG_RDR(r1,a);new MSG_RDR(a1,r);

System.out.println("Enterting MSG_READER thread done sucessfully");i=1;

}

}

}catch(IOException E){ System.out.println("Error in Reading

Client Request");}

MainFrame.T.append("User Logged Out : "+uname);

CLIENT_INFO tmp[]=new CLIENT_INFO[15];int j=0;

for(int x=0;x


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THBind.i--;System.out.println(THBind.i);MainFrame.C_INFO=new CLIENT_INFO[15];MainFrame.UL.removeAll();System.out.println("Modifying Client Info

Array");for(int x=0;x


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Stringf=C_input.readLine();

System.out.println("Waiting for Requestor");

SocketFriend_Cmd=null;

Socketd_s1=THBind.server_DSocket.accept();

for(intj=0;j


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}/// Manipulate

public void COM_PROCESS(Socket rqt, Socket accp){

try{

r=newPrintWriter(rqt.getOutputStream(),true);

a=newPrintWriter(accp.getOutputStream(),true);

r1=newBufferedReader(new InputStreamReader(rqt.getInputStream()));

a1=newBufferedReader(new InputStreamReader(accp.getInputStream()));

System.out.println("StreamsCreated");

}catch(Exception E)

{}

}

boolean already_exist(){

System.out.println("index :"+ ci);if(ci!=0)for(int j=0;j


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DataInputStream fin = new DataInputStream(newFileInputStream("data.txt"));

while(true){if( uname.equals(fin.readUTF()) ){

flag = 1;if( pass.equals(fin.readUTF()) ){FOUND=1;break;

} // if( ps.equals(fin.readUTF()) )else{FOUND=0;//C_output.println("NACK");break;

}//else}//if( nm.equals(fin.readUTF()) )

}//while}//try

catch(Exception e1) { }

System.out.println("CMD: "+cmd+" flag="+flag);if(cmd.equals("N_U") && flag==0){

try{DataOutputStream fout = new DataOutputStream(new

FileOutputStream("data.txt",true));

fout.writeUTF(uname);fout.writeUTF(pass);fout.close();System.out.println("User Wrote in File");C_output.println("User Signed Sucessful");

}catch(Exception E){};

}else{

if(flag==1&&FOUND==0&&cmd.equals("N_U"))C_output.println("User Exist Sign-in other.");

else

{if (FOUND==0&&cmd.equals("S_U"))

C_output.println("NACK");else{

if(FOUND==1&&already_exist()==false){

MainFrame.T.append("User ""+uname+"" Authenticated");

C_output.println(S_CHAT.DPort);


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}else{

FOUND=0;C_output.println("U_A_E");

}}}

}

return (FOUND);}

}////////************* Client Handling (Thread) Class Ends **************

////////************* Message Transfering (Thread) Class **************class MSG_RDR extends Frame implements Runnable

{Thread t;BufferedReader BR;PrintWriter PW;

public MSG_RDR(BufferedReader br, PrintWriter pw){

t=new Thread(this);System.out.println("I am Inside MSG_RDR");

BR=br;PW=pw;PW.println("Stream established For

Communication...");

MainFrame.T.append("Indise The MESSAGE READER Thread");

t.start();

}public void run(){

while(true){

try{

String s=BR.readLine();

PW.println(s);}catch(IOException E){}

}}

}////////************* Message Transfering (Thread) Class Ends**************

//////////************ SERVER CODE ENDS*************////////////////


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////********** CLIENT CODE STARTS ******************//////////

import java.io.*;import java.awt.*;import java.net.*;import javax.swing.*;import java.awt.event.*;

////////************* MAIN CLASS ***********class S_Client

{

public static void main(String args[]){MainFrame frm = new MainFrame();

frm.setResizable(false);frm.show();}

}////////************* MAIN CLASS Ends ***********

////////************* Connection Frame Class ***********class MainFrame extends Frame implements ActionListener{

TextField t1,t2;Label l1,l2,l3,St;Button b1;static Socket c_s;

static String serv="localhost";int flag = 0;String nm,ps;public MainFrame()

{super("Connection To...");

setSize(250,150);setLayout(null);addWindowListener(new WindowAdapter ()

{public void windowClosing (WindowEvent e){

System.exit(0);

}} );

add(l1=new Label("Server IP:"));l1.setBounds(20,40,80,20);add(t1 = new TextField(10));t1.setBounds(110,40,80,20);add(l2=new Label("Port:"));l2.setBounds(20,70,80,20);add(t2 = new TextField("2000"));t2.setBounds(110,70,80,20);


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add(b1 = new Button("Connect"));b1.setBounds(130,100,60,20);add(l3=new Label("Status"));l3.setBounds(10,125,200,20);St=new Label("");St.setBounds(60,125,190,20);add(St);

b1.addActionListener(this);

}

public void actionPerformed(ActionEvent ae)

{if(ae.getSource()==b1){

if(t2.getText().equals(""))l3.setText("Port No.

meust be entered.");else

CONNECT_TO();}

}

public void CONNECT_TO(){

int port=2000;

if(t1.getText()=="")serv="localhost";

elseserv=t1.getText();

try{

port = Integer.parseInt(t2.getText());

}catch (Exception e) { }

try{

c_s = newSocket(serv, port);

l3.setText("Con

nected to server " +c_s.getInetAddress()+":" +c_s.getPort());

form F=newform();

F.show();F.setResizable(

false);this.hide();

}catch (UnknownHostException e){


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System.out.println(e);

System.out.println("Error in connecting Server");

//System.exit(ERROR);

}catch (IOException e)

{System.out.prin

tln(e);System.out.prin

tln("Error in connecting Server");//System.exit(E

RROR);}

}

}

////////************* Connection Frame Class Ends ***********

////////************* Login Frame Class ***********class form extends Frame implements ActionListener

{static TextField t1,t2;Label l1,l2,l3,St;Button b1,b2;

static BufferedReader C_input;static PrintWriter C_output;

int flag = 0;static int po;

String nm,ps;public form()

{super("Login to MadMan Chatting Server");

setSize(250,150);setLayout(null);

addWindowListener(new WindowAdapter (){

public void windowClosing (WindowEvent e){

System.exit(0);}

} );

try{

C_input = new BufferedReader(newInputStreamReader(MainFrame.c_s.getInputStream()));

C_output = newPrintWriter(MainFrame.c_s.getOutputStream(),true);

}catch(Exception E){}


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add(l1=new Label("Username:"));l1.setBounds(20,40,80,20);add(t1 = new TextField(10));t1.setBounds(110,40,80,20);add(l2=new Label("Password:"));l2.setBounds(20,70,80,20);add(t2 = new TextField(10));t2.setBounds(110,70,80,20);

add(b1 = new Button("LOGIN"));b1.setBounds(140,100,50,20);add(b2 = new Button("Sign Up..."));b2.setBounds(70,100,60,20);add(l3=new Label("Report:"));l3.setBounds(10,125,200,20);St=new Label("");St.setBounds(60,125,190,20);add(St);

t2.setEchoChar('*');

b1.addActionListener(this);b2.addActionListener(this);

}

public void actionPerformed(ActionEvent ae)

{po=3000;String l="";

if(ae.getSource()==b2){

Sign_UP Su = new Sign_UP();

Su.show();t1.setText("");t2.setText("");

}

if(ae.getSource() == b1){

C_output.println("S_U");C_output.println(t1.getText());C_output.println(t2.getText());try{l=C_input.readLine();

System.out.println(l);}catch(IOException E){}

if(!l.equals("NACK")){

if(l.equals("U_A_E")){

l3.setText("UserAlreal Exist");

System.out.println("Us


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er Alreal Exist");t1.setText("");t2.setText("");

}else{

try

{po=Integer.parseInt(l);

}catch(Exception E){}try{

System.out.println("Waiting for other cmd");

l=C_input.readLine();System.out.println(l);System.out.println("CMD

Recieved");}

catch(IOException E){}

Frame3 F3=newFrame3(t1.getText());

F3.show();F3.setResizable(false);this.hide();

}}elsel3.setText("Invalid Username/Password.");

}

//System.out.println("Loggin in Again");}

} //Form////////************* Login Frame Class Ends ***********

////////************* New User Sign Up Frame Class ***********class Sign_UP extends Frame implements ActionListener

{TextField tt1,tt2,tt3;Label l1,l2,l3,l4;

Button b1;

public Sign_UP(){super("New User to MadMan Chatting Server");setSize(250,180);setLayout(null);


public void windowClosing (WindowEvent e)


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{dispose();

}} );add(l1=new Label("Username:"));

l1.setBounds(20,40,80,20);add(tt1 = new TextField(10));tt1.setBounds(110,40,80,20);

add(l2=new Label("Password:"));l2.setBounds(20,70,80,20);add(tt2 = new TextField(10));tt2.setBounds(110,70,80,20);add(l4=new Label("Confirm Pass."));l4.setBounds(20,100,80,20);add(tt3 = new TextField(10));tt3.setBounds(110,100,80,20);add(b1 = new Button("Sign In"));b1.setBounds(130,130,60,20);b1.addActionListener(this);add(l3=new Label("Report:"));l3.setBounds(10,155,200,20);

tt2.setEchoChar('-');tt3.setEchoChar('-');

}public void actionPerformed(ActionEvent AE){

if(tt1.getText().equals("")||tt2.getText().equals("")||tt3.getText().equals(""))

l3.setText("Text Field(s) Empty.");else{

if(tt3.getText().equals(tt2.get

Text())){

form.C_output.println("N_U");

form.C_output.println(tt1.getText());

form.C_output.println(tt2.getText());

try{String s =

form.C_input.readLine();l3.setText(s);

}catch(IOException E){}}elsel3.setText("Password mis-

match.");

}}

}////////************* New User Sign Up Frame Class Ends ***********


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{if(OUL.getSelectedItem().equals(U)){

JOptionPane.showMessageDialog(this,"Self-chatting is denied",

"Warning",JOptionPane.WARNING_MESSAGE);

}

else{if(AE.getSource()==OUL||AE.getSource()==B){

if(!OUL.getSelectedItem().equals("[MAD_MAN]")){form.C_output.println("RQT_CHAT");form.C_output.println(U);form.C_output.println(OUL.getSelectedItem());CHAT_WIN CW=new

CHAT_WIN(U,OUL.getSelectedItem());CW.show();

}elseJOptionPane.showMessageDialog(this,"Default

Server User : AccessDenied",

"Warning",JOptionPane.WARNING_MESSAGE);

}

}}

}////////************* Final Frame Class Ends ***********

////////************* Chat window Frema Class **************class CHAT_WIN extends Frame implements ActionListener,TextListener{

static TextArea T;TextField Tx;String uname;Socket d_s;String s;static BufferedReader D_input;

static PrintWriter D_output;

public CHAT_WIN(String u,String f){

super(u+"->>> *


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Tx.setBounds(10,260,380,35);Tx.addActionListener(this);

T=new TextArea("CHAT WINDOW",10,50,1);add(T);T.setBounds(10,25,380,230);T.setEditable(false);T.addTextListener(this);

try{

System.out.println("DS connection with");d_s = new Socket(MainFrame.serv, form.po);

//T.append("Connected to Data server " +d_s.getInetAddress()+":"+d_s.getPort());

T.append("Establishing stream for communication...");

}catch (UnknownHostException e){

System.out.println(e);System.out.println("Error in connecting Data Server");//System.exit(ERROR);

}catch

(IOException e){

System.out.println(e);

System.out.println("Error in connecting Server");//System.exit(ERROR);

}


public void windowClosing (WindowEvent e){

hide();}

} );

try{D_output=new PrintWriter(d_s.getOutputStream(),true);D_input=new BufferedReader(new

InputStreamReader(d_s.getInputStream()));}

catch(IOException E){}


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new MSG_READER();}

public void textValueChanged(TextEvent TE){

this.show();}

public void actionPerformed(ActionEvent TE){

s=uname+" :: "+Tx.getText();Tx.setText("");T.append("
+s);

D_output.println(s);System.out.println("Data Sent");

}}

////////************* Chat window Frema Class Ends **************

////////************* Message Reader Class for Chat window **************class MSG_READER extends Thread{

Thread t;public MSG_READER(){

t=new Thread(this);

t.start();

}

public void run(){

while(true)try{

CHAT_WIN.T.append("
+CHAT_WIN.D_input.readLine());

}catch(IOException E){}

}}////////************* Message Reader Class for Chat window Ends**************

////////************* Message Reader Class reading server Msg & Commnads**************class CMD_L extends Frame implements Runnable{

Thread t;String cmd="";

CMD_L(){

t=new Thread(this);t.start();


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}

public void run(){

while(true){

try{

cmd=form.C_input.readLine();compute(cmd);}catch(IOException E){}//System.out.println("Error Reading Command At

Client");}

}}public void compute(String cmd){

if(cmd.equals("ULIST")){

Frame3.OUL.removeAll();try{String s=form.C_input.readLine();

while(!s.equals("END")){

Frame3.OUL.addItem(s);s=form.C_input.readLine();

}

}catch(IOException E){System.out.println("Error in

Reading List byclient");}

}

if(cmd.equals("CALL_CHAT")){

try{String s1=form.C_input.readLine();String s2=form.C_input.readLine();CHAT_WIN CW1=new CHAT_WIN(s1,s2);CW1.show();}

catch(IOException E){System.out.println("Error inReading List byclient");}

}if(cmd.equals("S_MSG")){

try{String msgs=form.C_input.readLine();JOptionPane.showMessageDialog(this,msgs,

"Server


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Message",JOptionPane.PLAIN_MESSAGE);}catch(IOException E){System.out.println("Error in

Reading List byclient");}

}}

}////////************* Message Reader Class reading server Msg & CommnadsEnds**************

////********** CLIENT CODE STARTS ENDS******************//////////

Chatting Application

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