rt

commit fe118a2bee84543d4c7f7b797e8cfcbf3e3c86a0
parent 903efad6408c0fe6fb120b23c4d20de49b76cb05
Author: zerous Naveen Narayanan <zerous@nocebo.space>
Date:   Sat, 14 Dec 2019 19:47:41 +0100

Make sure that a user can't login from multiple clients at the same time using the same credentials.

Diffstat:
M
acc.java
 | 
12
++++++++++--
M
servertask.java
 | 
19
+++++++++++++++++--

2 files changed, 27 insertions(+), 4 deletions(-)
diff --git a/acc.java b/acc.java
@@ -11,7 +11,7 @@ public class acc {
 		uname = n;
 		pass = p;
 		score = util.getRandomInt();
-		online = true;
+		online = false;
 		gid = 0;
 	}
 
@@ -19,7 +19,7 @@ public class acc {
 		uname = n;
 		pass = p;
 		score = s;
-		online = true;
+		online = false;
 		gid = 0;
 	}
 	
@@ -43,6 +43,14 @@ public class acc {
 		return online;
 	}
 
+	public void setOnline() {
+		online = true;
+	}
+
+	public void setOffline() {
+		online = false;
+	}
+
 	public int getGid() {
 		return gid;
 	}
diff --git a/servertask.java b/servertask.java
@@ -28,7 +28,10 @@ public class servertask implements Runnable {
 		for (acc c : server.Accounts)
 			if (((inp[0].compareTo(c.getUname())) == 0) &&
 			    ((inp[1].compareTo(c.getPass())) == 0)) {
+				if (c.getOnline() == true)
+					return -1;
 				player = c;
+				player.setOnline();
 				return 1;
 			}
 		return 0;
@@ -152,6 +155,7 @@ public class servertask implements Runnable {
 
 			String message = inputStr.readUTF();
 			int val = 0;
+			int lres;
 			while (message.compareTo("q") != 0) { // use 'q' to quit
 				if (util.isNumeric(message) && (val = Integer.parseInt(message)) > 0 && val < 3) {
 					if (val == 1 && loggedin == 0) {
@@ -175,7 +179,8 @@ public class servertask implements Runnable {
 						outputStr.flush();
 						message = inputStr.readUTF();
 						if (util.isValidCred(message)) {
-							if (login(message) == 1) {
+							lres = login(message);
+							if (lres == 1) {
 								loggedin = 1;
 								notifyClient(outputStr, "Login Successful\n" +
 									     "Please wait.\n" +
@@ -211,13 +216,23 @@ public class servertask implements Runnable {
 								}
 								as = pscript.getResult(lock,player);
 								notifyClient(outputStr,as);
+								player.setOffline();
 								notifyClient(outputStr,"Game Over.\n" +
 									     "You have been logged out\n" +
 									     "Play again? (Please press 2)");
-							} else 
+							} else if (lres == 0) {
+								System.out.println("dbg lres == 0");
 								notifyClient(outputStr, "Login Failed\n" +
 									     "Please try again\n" +
 									     mainMenu);
+							}
+							else if (lres == -1) {
+								System.out.println("dbg lres = -1");
+								notifyClient(outputStr, "Cheating detected.\n" +
+									     "This incident will be reported.\n" + 
+									     "Please try again\n" +
+									     mainMenu);
+							}
 						} else
 							notifyClient(outputStr, "Invalid format\n" +
 								     "Please try again\n" +