org.energyos.espi.datacustodian.oauth.EspiUserApprovalHandler.java Source code

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Here is the source code for org.energyos.espi.datacustodian.oauth.EspiUserApprovalHandler.java

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/*
 * Copyright 2002-2014 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 org.energyos.espi.datacustodian.oauth;

import java.util.Collection;

import org.springframework.security.core.Authentication;
import org.springframework.security.oauth2.provider.AuthorizationRequest;
import org.springframework.security.oauth2.provider.ClientDetails;
import org.springframework.security.oauth2.provider.ClientDetailsService;
import org.springframework.security.oauth2.provider.ClientRegistrationException;
import org.springframework.security.oauth2.provider.approval.ApprovalStoreUserApprovalHandler;

/**
 * @author Dave Syer
 * 
 */
public class EspiUserApprovalHandler extends ApprovalStoreUserApprovalHandler {

    private boolean useApprovalStore = true;

    private ClientDetailsService clientDetailsService;

    /**
     * Service to load client details (optional) for auto approval checks.
     * 
     * @param clientDetailsService a client details service
     */
    public void setClientDetailsService(ClientDetailsService clientDetailsService) {
        this.clientDetailsService = clientDetailsService;
        super.setClientDetailsService(clientDetailsService);
    }

    /**
     * @param useApprovalStore the useTokenServices to set
     */
    public void setUseApprovalStore(boolean useApprovalStore) {
        this.useApprovalStore = useApprovalStore;
    }

    /**
     * Allows automatic approval for a white list of clients in the implicit grant case.
     * 
     * @param authorizationRequest The authorization request.
     * @param userAuthentication the current user authentication
     * 
     * @return An updated request if it has already been approved by the current user.
     */
    @Override
    public AuthorizationRequest checkForPreApproval(AuthorizationRequest authorizationRequest,
            Authentication userAuthentication) {

        boolean approved = false;
        // If we are allowed to check existing approvals this will short circuit the decision
        if (useApprovalStore) {
            authorizationRequest = super.checkForPreApproval(authorizationRequest, userAuthentication);
            approved = authorizationRequest.isApproved();
        } else {
            if (clientDetailsService != null) {
                Collection<String> requestedScopes = authorizationRequest.getScope();
                try {
                    ClientDetails client = clientDetailsService
                            .loadClientByClientId(authorizationRequest.getClientId());
                    for (String scope : requestedScopes) {
                        if (client.isAutoApprove(scope) || client.isAutoApprove("all")) {
                            approved = true;
                            break;
                        }
                    }
                } catch (ClientRegistrationException e) {
                }
            }
        }
        authorizationRequest.setApproved(approved);

        return authorizationRequest;
    }

}