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package dk.grinn.keycloak.migration.boundary;

/*-
 * #%L
 * Keycloak : Migrate : Resource
 * %%
 * Copyright (C) 2019 Jonas Grann & Kim Jersin
 * %%
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * #L%
 */

import dk.grinn.keycloak.migration.entities.CreateRealmKey;
import dk.grinn.keycloak.migration.entities.Session;
import org.keycloak.connections.jpa.JpaConnectionProvider;
import org.keycloak.models.KeycloakSession;
import org.keycloak.models.RealmModel;

import javax.annotation.security.RolesAllowed;
import javax.persistence.EntityManager;
import javax.persistence.NoResultException;
import javax.ws.rs.DefaultValue;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Response;
import java.util.List;
import java.util.UUID;

import static dk.grinn.keycloak.migration.resource.RealmAccessAuthFilter.getAuthResult;
import static javax.servlet.http.HttpServletResponse.SC_NOT_FOUND;

/**
 * REST end point to {@link RealmHistoryLockController}.
 *
 * @author @author Kim Jersin <[email protected]>
 */
@RolesAllowed("admin")
public class SessionRessourceImpl implements SessionResource {

    private final KeycloakSession session;

    private final RealmHistoryLockController controller;
    private final RealmKeyController realmKeyController;

    public SessionRessourceImpl(KeycloakSession session) {
        EntityManager em = session.getProvider(JpaConnectionProvider.class).getEntityManager();
        this.controller = new RealmHistoryLockController(em);
        this.realmKeyController = new RealmKeyController(em);
        this.session = session;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public List getSessions(@QueryParam("activeOnly") @DefaultValue("false") boolean activeOnly) {
        return controller.getSessions(activeOnly);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Response createSession(CreateSession args) {
        UUID sessionId = controller.createSession(args.realm,
                getAuthResult(session).getToken().getPreferredUsername()
        );
        return Response.created(
                session.getContext().getUri().getAbsolutePathBuilder().path(sessionId.toString()).build()
        ).build();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Session getSession(UUID sessionId) {
        return controller.get(sessionId).toSession();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Response releaseSession(UUID sessionId) {
        return controller.releaseSession(sessionId) == 1
                ? Response.noContent().build()
                : Response.status(SC_NOT_FOUND).build();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public ScriptResource scripts(UUID sessionId) {
        return new ScriptResourceImpl(session, sessionId);
    }

    @Override
    public Response setRealmKey(UUID sessionId, CreateRealmKey createRealmKey) {
        controller.get(sessionId);

        RealmModel realmModel = session.realms().getRealm(createRealmKey.getRealmId());

        realmKeyController.setRealmKey(realmModel, createRealmKey);

        return Response.noContent().build();
    }

    @Override
    public Response disableRsaGeneratedKey(UUID sessionId, String realmId) {
        controller.get(sessionId);
        RealmKeyController.disableRsaGenerated(session.realms().getRealm(realmId));
        return Response.noContent().build();
    }


    @Override
    public Response removeSession(UUID sessionId) {
        try {
            controller.removeSession(sessionId);
        } catch (NoResultException ex) {
            return Response.status(SC_NOT_FOUND).build();
        }
        return Response.noContent().build();
    }

}