/*
* Copyright 2012 JBoss Inc
*
* 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 org.uberfire.security.server.auth;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.uberfire.security.SecurityContext;
import org.uberfire.security.auth.AuthenticationException;
import org.uberfire.security.auth.AuthenticationProvider;
import org.uberfire.security.auth.AuthenticationResult;
import org.uberfire.security.auth.AuthenticationSource;
import org.uberfire.security.auth.AuthenticationStatus;
import org.uberfire.security.auth.Credential;
import org.uberfire.security.auth.Principal;
import org.uberfire.security.impl.auth.PrincipalImpl;
import org.uberfire.security.impl.auth.UserNameCredential;
import static java.util.Collections.*;
import static org.uberfire.commons.validation.PortablePreconditions.*;
public class DefaultAuthenticationProvider implements AuthenticationProvider {
private final AuthenticationSource authenticationSource;
public DefaultAuthenticationProvider( final AuthenticationSource authSource ) {
this.authenticationSource = checkNotNull( "authSource", authSource );
}
@Override
public void initialize( final Map<String, ?> options ) {
authenticationSource.initialize( options );
}
@Override
public boolean supportsCredential( final Credential credential ) {
return authenticationSource.supportsCredential( credential );
}
@Override
public AuthenticationResult authenticate( final Credential credential, final SecurityContext securityContext )
throws AuthenticationException {
if ( !supportsCredential( credential ) ) {
return new AuthenticationResult() {
@Override
public List<String> getMessages() {
return new ArrayList<String>( 1 ) {{
add( "Credential not supported by " + DefaultAuthenticationProvider.class.getName() );
}};
}
@Override
public AuthenticationStatus getStatus() {
return AuthenticationStatus.NONE;
}
@Override
public Principal getPrincipal() {
return null;
}
};
}
final UserNameCredential realCredential = UserNameCredential.class.cast( credential );
if ( !authenticationSource.authenticate( realCredential, securityContext ) ) {
return new AuthenticationResult() {
@Override
public List<String> getMessages() {
return new ArrayList<String>( 1 ) {{
add( "Invalid credentials." );
}};
}
@Override
public AuthenticationStatus getStatus() {
return AuthenticationStatus.FAILED;
}
@Override
public Principal getPrincipal() {
return null;
}
};
}
return new AuthenticationResult() {
@Override
public List<String> getMessages() {
return emptyList();
}
@Override
public AuthenticationStatus getStatus() {
return AuthenticationStatus.SUCCESS;
}
@Override
public Principal getPrincipal() {
return new PrincipalImpl( realCredential.getUserName() );
}
};
}
}