services/dlab-webapp-common/src/main/java/com/epam/dlab/auth/SecurityFactory.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 com.epam.dlab.auth;

import com.google.inject.Injector;
import io.dropwizard.auth.AuthDynamicFeature;
import io.dropwizard.auth.AuthValueFactoryProvider;
import io.dropwizard.auth.Authorizer;
import io.dropwizard.auth.oauth.OAuthCredentialAuthFilter;
import io.dropwizard.setup.Environment;
import org.glassfish.jersey.server.filter.RolesAllowedDynamicFeature;

public class SecurityFactory {
    private static final String PREFIX = "Bearer";

    public void configure(Injector injector, Environment environment) {

        configure(injector, environment, SecurityRestAuthenticator.class,
                injector.getInstance(SecurityAuthorizer.class));
    }

    public <T extends SecurityRestAuthenticator> void configure(Injector injector, Environment environment,
                                                                Class<T> authenticator,
                                                                Authorizer<UserInfo> authorizer) {

        environment.jersey().register(new AuthDynamicFeature(
                new OAuthCredentialAuthFilter.Builder<UserInfo>()
                        .setAuthenticator(injector.getInstance(authenticator))
                        .setAuthorizer(authorizer)
                        .setPrefix(PREFIX)
                        .setUnauthorizedHandler(injector.getInstance(SecurityUnauthorizedHandler.class))
                        .buildAuthFilter()));

        environment.jersey().register(RolesAllowedDynamicFeature.class);
        environment.jersey().register(new AuthValueFactoryProvider.Binder<>(UserInfo.class));
    }
}