commit d189b24ec42c186ef4b78f33674533a1e4d8da2d
Author: zerous Naveen Narayanan <zerous@nocebo.space>
Date: Sat, 23 Nov 2019 02:22:21 +0100
Initial commit
Diffstat:
9 files changed, 252 insertions(+), 0 deletions(-)
diff --git a/Makefile b/Makefile
@@ -0,0 +1,19 @@
+all: server client util acc
+
+server:
+ javac server.java
+
+client:
+ javac client.java
+
+util:
+ javac util.java
+
+acc:
+ javac acc.java
+
+.PHONY: clean run
+
+clean:
+ rm server.class client.class util.class acc.class
+
diff --git a/acc.class b/acc.class
Binary files differ.
diff --git a/acc.java b/acc.java
@@ -0,0 +1,47 @@
+package space.nocebo;
+
+import java.util.Random;
+
+public class acc {
+ private String uname;
+ private String pass;
+ private int score;
+ boolean online;
+ int gid;
+
+ public acc(String n, String p) {
+ uname = n;
+ pass = p;
+ score = getRandomInt();
+ online = true;
+ gid = 0;
+ }
+
+ public String getUname() {
+ return uname;
+ }
+
+ public String getPass() {
+ return pass;
+ }
+
+ public int getScore() {
+ return score;
+ }
+
+ public boolean getOnline() {
+ return online;
+ }
+
+ public int getGid() {
+ return gid;
+ }
+
+ private int getRandomInt() {
+ int res = 1;
+ Random r = new Random();
+ while ((res = r.nextInt(5)) != 0)
+ return res;
+ return res;
+ }
+};
diff --git a/client.class b/client.class
Binary files differ.
diff --git a/client.java b/client.java
@@ -0,0 +1,46 @@
+package space.nocebo;
+
+import java.net.*;
+import java.io.*;
+
+public class client {
+ public static void main(String[] args) {
+ int port = 1234;
+ String ip = "127.0.0.1";
+ try {
+ Socket connection = new Socket(ip, port);
+ System.out.println("Connected! " + connection);
+
+ DataInputStream inputStr = new DataInputStream(
+ new BufferedInputStream(connection.getInputStream()));
+ DataOutputStream outputStr = new DataOutputStream(
+ new BufferedOutputStream(connection.getOutputStream()));
+
+ String serv_mes = "";
+ String s = "";
+ while (s.compareTo("q") != 0) {
+ serv_mes = inputStr.readUTF();
+ System.out.print(serv_mes + "> ");
+
+ BufferedReader stdin = new BufferedReader(
+ new InputStreamReader(System.in));
+ if ((s = stdin.readLine()) != null && s.length() != 0) {
+ outputStr.writeUTF(s);
+ outputStr.flush();
+ }
+ }
+ // kill the server
+ outputStr.writeUTF(s);
+ outputStr.flush();
+
+ // kill the client
+ outputStr.close();
+ inputStr.close();
+
+ // close the connection
+ connection.close();
+ } catch (IOException ex) {
+ System.out.println("Couldn't establish connection: " + ex);
+ }
+ }
+}
diff --git a/server.class b/server.class
Binary files differ.
diff --git a/server.java b/server.java
@@ -0,0 +1,108 @@
+package space.nocebo;
+
+import java.net.*;
+import java.io.*;
+import java.util.*;
+import space.nocebo.util;
+
+public class server {
+
+ private ArrayList<acc> Accounts = new ArrayList<acc>();
+
+ private DataOutputStream outputStr;
+
+ private int login(String m) {
+ String[] inp = m.split(" ", 2);
+ for (acc c : Accounts)
+ if (((inp[0].compareTo(c.getUname())) == 0) &&
+ ((inp[1].compareTo(c.getPass())) ==0))
+ return 1;
+ return 0;
+ }
+
+ private void register(String m) {
+ String[] inp = m.split(" ", 2);
+ Accounts.add(new acc(inp[0], inp[1]));
+ }
+
+ private void notifyClient(DataOutputStream str, String m) {
+ try {
+ str.writeUTF(m + "\n");
+ str.flush();
+ } catch (IOException ex) {
+ System.out.println("Connection error: " + ex);
+ System.exit(1);
+ }
+ }
+
+ public static void main(String[] args) throws IOException {
+ try {
+ ServerSocket tcpserver = new ServerSocket(1234);
+ System.out.println("Wait for connections");
+ Socket connection = tcpserver.accept();
+ server serv = new server();
+ System.out.println("TCP Client connected " + connection);
+
+ DataInputStream inputStr = new DataInputStream(
+ new BufferedInputStream(connection.getInputStream()));
+ DataOutputStream outputStr = new DataOutputStream(
+ new BufferedOutputStream(connection.getOutputStream()));
+
+ serv.notifyClient(outputStr,
+ "Welcome to RT\nSelect one:\n1.Register\n2.Signup");
+
+ String message = inputStr.readUTF();
+ int val = 0;
+ while (message.compareTo("q") != 0) { // use 'q' to quit
+ if (util.isNumeric(message)) {
+ val = Integer.parseInt(message);
+ if (val == 1) {
+ System.out.println("in 1");
+ outputStr.writeUTF("Enter your username and password" +
+ " in the format:" +
+ " username password\n");
+ outputStr.flush();
+ message = inputStr.readUTF();
+ if (util.isValidCred(message)) {
+ serv.register(message);
+ serv.notifyClient(outputStr,
+ "Registration Successful\n" +
+ "Please press 2 to login");
+ }
+ else
+ serv.notifyClient(outputStr, "Invalid Input");
+ } else if (val == 2) {
+ System.out.println("in 2");
+ outputStr.writeUTF("Kindly enter your preferred" +
+ " username and password" +
+ " in the format: username password\n");
+ outputStr.flush();
+ message = inputStr.readUTF();
+ if (util.isValidCred(message)) {
+ if (serv.login(message) == 1)
+ serv.notifyClient(outputStr, "Login Successful");
+ else
+ serv.notifyClient(outputStr, "Login Failed\n" +
+ "Please try again later");
+ }
+ else
+ serv.notifyClient(outputStr, "Invalid input");
+ }
+ } else {
+ serv.notifyClient(outputStr, "Invalid Input");
+ }
+ System.out.println("TCP Client> " + message);
+ message = inputStr.readUTF();
+ }
+
+ inputStr.close();
+ outputStr.close();
+ connection.close();
+ tcpserver.close();
+
+ } catch (IOException ex) {
+ System.out.println("Couldn't establish connection: " + ex);
+ }
+
+ }
+}
diff --git a/util.class b/util.class
Binary files differ.
diff --git a/util.java b/util.java
@@ -0,0 +1,32 @@
+package space.nocebo;
+
+import java.util.regex.PatternSyntaxException;
+
+public class util {
+ public static boolean isNumeric(String s) {
+ try {
+ int d = Integer.parseInt(s);
+ } catch (NumberFormatException | NullPointerException ex) {
+ return false;
+ }
+ return true;
+ }
+
+ public static boolean isDouble(String s) {
+ try {
+ double d = Double.parseDouble(s);
+ } catch (NumberFormatException | NullPointerException ex) {
+ return false;
+ }
+ return true;
+ }
+
+ public static boolean isValidCred(String s) {
+ try {
+ String[] a = s.split(" ", 2);
+ } catch (PatternSyntaxException ex) {
+ return false;
+ }
+ return true;
+ }
+}
