/*
* Copyright 2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.vertx.proton.sasl;
import javax.security.sasl.SaslException;
public interface ProtonSaslMechanism extends Comparable<ProtonSaslMechanism> {
Relative priority values used to arrange the found SASL mechanisms in a preferred order where the level of security
generally defines the preference.
/**
* Relative priority values used to arrange the found SASL mechanisms in a preferred order where the level of security
* generally defines the preference.
*/
public enum PRIORITY {
LOWEST(0), LOWER(1), LOW(2), MEDIUM(3), HIGH(4), HIGHER(5), HIGHEST(6);
private final int value;
private PRIORITY(int value) {
this.value = value;
}
public int getValue() {
return value;
}
};
Returns: return the relative priority of this SASL mechanism.
/**
* @return return the relative priority of this SASL mechanism.
*/
int getPriority();
Returns: the well known name of this SASL mechanism.
/**
* @return the well known name of this SASL mechanism.
*/
String getName();
Create an initial response based on selected mechanism.
May be null if there is no initial response.
Throws: - SaslException –
if an error occurs computing the response.
Returns: the initial response, or null if there isn't one.
/**
* Create an initial response based on selected mechanism.
*
* May be null if there is no initial response.
*
* @return the initial response, or null if there isn't one.
* @throws SaslException
* if an error occurs computing the response.
*/
byte[] getInitialResponse() throws SaslException;
Create a response based on a given challenge from the remote peer.
Params: - challenge –
the challenge that this Mechanism should response to.
Throws: - SaslException –
if an error occurs computing the response.
Returns: the response that answers the given challenge.
/**
* Create a response based on a given challenge from the remote peer.
*
* @param challenge
* the challenge that this Mechanism should response to.
*
* @return the response that answers the given challenge.
* @throws SaslException
* if an error occurs computing the response.
*/
byte[] getChallengeResponse(byte[] challenge) throws SaslException;
Sets the user name value for this Mechanism. The Mechanism can ignore this value if it does not utilize user name
in it's authentication processing.
Params: - username –
The user name given.
Returns: the mechanism.
/**
* Sets the user name value for this Mechanism. The Mechanism can ignore this value if it does not utilize user name
* in it's authentication processing.
*
* @param username
* The user name given.
* @return the mechanism.
*/
ProtonSaslMechanism setUsername(String username);
Returns the configured user name value for this Mechanism.
Returns: the currently set user name value for this Mechanism.
/**
* Returns the configured user name value for this Mechanism.
*
* @return the currently set user name value for this Mechanism.
*/
String getUsername();
Sets the password value for this Mechanism. The Mechanism can ignore this value if it does not utilize a password
in it's authentication processing.
Params: - username –
The user name given.
Returns: the mechanism.
/**
* Sets the password value for this Mechanism. The Mechanism can ignore this value if it does not utilize a password
* in it's authentication processing.
*
* @param username
* The user name given.
* @return the mechanism.
*/
ProtonSaslMechanism setPassword(String username);
Returns the configured password value for this Mechanism.
Returns: the currently set password value for this Mechanism.
/**
* Returns the configured password value for this Mechanism.
*
* @return the currently set password value for this Mechanism.
*/
String getPassword();
Checks whether a given mechanism is suitable for use in light of the available credentials.
Params: - username –
the username
- password –
the password
Returns: whether mechanism is applicable
/**
* Checks whether a given mechanism is suitable for use in light of the available credentials.
*
* @param username
* the username
* @param password
* the password
* @return whether mechanism is applicable
*/
boolean isApplicable(String username, String password);
}