edu.ucsb.eucalyptus.msgs.CallerContext.java Source code

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Here is the source code for edu.ucsb.eucalyptus.msgs.CallerContext.java

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/*************************************************************************
 * Copyright 2009-2014 Eucalyptus Systems, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 3 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see http://www.gnu.org/licenses/.
 *
 * Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
 * CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
 * additional information or have any questions.
 ************************************************************************/
package edu.ucsb.eucalyptus.msgs;

import java.util.Map;
import com.eucalyptus.auth.AuthException;
import com.eucalyptus.auth.principal.RoleUser;
import com.eucalyptus.context.Context;
import com.google.common.base.Function;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;

/**
 * Context for propagation of identity / authorization parameters
 */
public class CallerContext {

    private final String identity; // user, role, etc
    private final boolean privileged;
    private final Map<String, String> evaluatedKeys;

    public CallerContext(final Context context) throws AuthException {
        identity = context.getUser() instanceof RoleUser ? ((RoleUser) context.getUser()).getRoleId()
                : context.getUser().getUserId();
        privileged = context.isPrivileged();
        evaluatedKeys = context.evaluateKeys();
    }

    public void apply(final BaseMessage message) {
        message.setUserId(identity);
        if (privileged) {
            message.markPrivileged();
        }
        message.setCallerContext(new BaseCallerContext(Lists.newArrayList(
                Iterables.transform(evaluatedKeys.entrySet(), MapEntryToEvaluatedIamConditionKey.INSTANCE))));
    }

    private enum MapEntryToEvaluatedIamConditionKey
            implements Function<Map.Entry<String, String>, EvaluatedIamConditionKey> {
        INSTANCE;

        @Override
        public EvaluatedIamConditionKey apply(final Map.Entry<String, String> entry) {
            return new EvaluatedIamConditionKey(entry.getKey(), entry.getValue());
        }
    }
}