/*
* Copyright (C)2009 - SSHJ Contributors
*
* 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 net.schmizz.sshj.userauth.password;
/**
* Callback that can be implemented to allow an application to provide an updated password for the 'auth-password'
* authentication method.
*/
public interface PasswordUpdateProvider {
/**
* Called with the prompt received from the SSH server. This should return the updated password for the user that is
* currently authenticating.
*
* @param resource The resource for which the updated password is being requested.
* @param prompt The password update prompt received from the SSH Server.
* @return The new password for the resource.
*/
char[] provideNewPassword(Resource<?> resource, String prompt);
/**
* If password turns out to be incorrect, indicates whether another call to {@link #provideNewPassword(Resource, String)} should be
* made.
* <p/>
* This method is geared at interactive implementations, and stub implementations may simply return {@code false}.
*
* @param resource the resource for which the updated password is being requested
*
* @return whether to retry requesting the updated password for a particular resource
*/
boolean shouldRetry(Resource<?> resource);
}