Updated TotpGenerator tool to read secret from System.in instead of arg

testsuite/integration/src/main/java/org/keycloak/testutils/TotpGenerator.java

@@ -3,6 +3,10 @@ package org.keycloak.testutils;
 import org.keycloak.models.utils.Base32;
 import org.keycloak.models.utils.TimeBasedOTP;
 
+import java.io.BufferedInputStream;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
 import java.util.Timer;
 import java.util.TimerTask;
 import java.util.concurrent.TimeUnit;
@@ -10,23 +14,38 @@ import java.util.concurrent.TimeUnit;
 
 public class TotpGenerator {
 
-    public static void main(String[] args) {
-        String totp = "";
-        for (String a : args) {
-            totp += a.trim();
-        }
-        totp = totp.replace(" ", "");
+    public static void main(String[] args) throws IOException {
 
-        final String google = new String(Base32.decode(totp));
-        final TimeBasedOTP otp = new TimeBasedOTP();
+        Timer timer = new Timer();
+        TotpTask task = null;
 
-        Timer t = new Timer();
-        t.schedule(new TimerTask() {
-            @Override
-            public void run() {
-                System.out.println(otp.generate(google));
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+
+        System.out.print("Insert secret: ");
+        for (String l = br.readLine(); true; l = br.readLine()) {
+            if (task != null) {
+                task.cancel();
             }
-        }, 0, TimeUnit.SECONDS.toMillis(TimeBasedOTP.DEFAULT_INTERVAL_SECONDS));
+
+            System.out.println("Secret: " + l);
+            task = new TotpTask(l);
+            timer.schedule(task, 0, TimeUnit.SECONDS.toMillis(TimeBasedOTP.DEFAULT_INTERVAL_SECONDS));
+        }
+    }
+
+    private static class TotpTask extends TimerTask {
+        private String secret;
+
+        private TotpTask(String secret) {
+            this.secret = secret;
+        }
+
+        @Override
+        public void run() {
+            String google = new String(Base32.decode(secret));
+            TimeBasedOTP otp = new TimeBasedOTP();
+            System.out.println(otp.generate(google));
+        }
     }
 
 }