1 files changed, 55 insertions, 52 deletions
diff --git a/src/main/java/de/pixart/messenger/crypto/sasl/SaslMechanism.java b/src/main/java/de/pixart/messenger/crypto/sasl/SaslMechanism.java
index 19e8f3591..8b8883b9f 100644
--- a/src/main/java/de/pixart/messenger/crypto/sasl/SaslMechanism.java
+++ b/src/main/java/de/pixart/messenger/crypto/sasl/SaslMechanism.java
@@ -7,56 +7,59 @@ import de.pixart.messenger.xml.TagWriter;
 
 public abstract class SaslMechanism {
 
-	final protected TagWriter tagWriter;
-	final protected Account account;
-	final protected SecureRandom rng;
-
-	protected enum State {
-		INITIAL,
-		AUTH_TEXT_SENT,
-		RESPONSE_SENT,
-		VALID_SERVER_RESPONSE,
-	}
-
-	public static class AuthenticationException extends Exception {
-		public AuthenticationException(final String message) {
-			super(message);
-		}
-
-		public AuthenticationException(final Exception inner) {
-			super(inner);
-		}
-	}
-
-	public static class InvalidStateException extends AuthenticationException {
-		public InvalidStateException(final String message) {
-			super(message);
-		}
-
-		public InvalidStateException(final State state) {
-			this("Invalid state: " + state.toString());
-		}
-	}
-
-	public SaslMechanism(final TagWriter tagWriter, final Account account, final SecureRandom rng) {
-		this.tagWriter = tagWriter;
-		this.account = account;
-		this.rng = rng;
-	}
-
-	/**
-	 * The priority is used to pin the authentication mechanism. If authentication fails, it MAY be retried with another
-	 * mechanism of the same priority, but MUST NOT be tried with a mechanism of lower priority (to prevent downgrade
-	 * attacks).
-	 * @return An arbitrary int representing the priority
-	 */
-	public abstract int getPriority();
-
-	public abstract String getMechanism();
-	public String getClientFirstMessage() {
-		return "";
-	}
-	public String getResponse(final String challenge) throws AuthenticationException {
-		return "";
-	}
+    final protected TagWriter tagWriter;
+    final protected Account account;
+    final protected SecureRandom rng;
+
+    protected enum State {
+        INITIAL,
+        AUTH_TEXT_SENT,
+        RESPONSE_SENT,
+        VALID_SERVER_RESPONSE,
+    }
+
+    public static class AuthenticationException extends Exception {
+        public AuthenticationException(final String message) {
+            super(message);
+        }
+
+        public AuthenticationException(final Exception inner) {
+            super(inner);
+        }
+    }
+
+    public static class InvalidStateException extends AuthenticationException {
+        public InvalidStateException(final String message) {
+            super(message);
+        }
+
+        public InvalidStateException(final State state) {
+            this("Invalid state: " + state.toString());
+        }
+    }
+
+    public SaslMechanism(final TagWriter tagWriter, final Account account, final SecureRandom rng) {
+        this.tagWriter = tagWriter;
+        this.account = account;
+        this.rng = rng;
+    }
+
+    /**
+     * The priority is used to pin the authentication mechanism. If authentication fails, it MAY be retried with another
+     * mechanism of the same priority, but MUST NOT be tried with a mechanism of lower priority (to prevent downgrade
+     * attacks).
+     *
+     * @return An arbitrary int representing the priority
+     */
+    public abstract int getPriority();
+
+    public abstract String getMechanism();
+
+    public String getClientFirstMessage() {
+        return "";
+    }
+
+    public String getResponse(final String challenge) throws AuthenticationException {
+        return "";
+    }
 }