com.eucalyptus.auth.ws.EuareRequestLoggingFilter.java Source code

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Here is the source code for com.eucalyptus.auth.ws.EuareRequestLoggingFilter.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 com.eucalyptus.auth.ws;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import com.eucalyptus.util.Strings;
import com.eucalyptus.ws.protocol.OperationParameter;
import com.eucalyptus.ws.protocol.RequestLoggingFilter;
import com.google.common.base.Functions;
import com.google.common.base.Optional;
import com.google.common.base.Predicates;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;

/**
 *
 */
public class EuareRequestLoggingFilter implements RequestLoggingFilter {
    private static final Iterable<String> CREATE_UPDATE_PROFILE_ACTION_NVPS = Iterables
            .concat(buildActionNVPs("CreateLoginProfile"), buildActionNVPs("UpdateLoginProfile"));
    private static final Iterable<String> UPLOAD_CERT_ACTION_NVPS = buildActionNVPs("UploadServerCertificate");

    private static final String PASSWORD_PARAMETER = "Password=";
    private static final String PASSWORD_PARAMETER_REDACTED = PASSWORD_PARAMETER + REDACTED;

    private static final String PRIVATE_KEY_PARAMETER = "PrivateKey=";
    private static final String PRIVATE_KEY_PARAMETER_REDACTED = PRIVATE_KEY_PARAMETER + REDACTED;

    private static Iterable<String> buildActionNVPs(final String action) {
        return Iterables.unmodifiableIterable(Iterables.transform(Arrays.asList(OperationParameter.values()),
                Functions.compose(Strings.append("=" + action), Functions.toStringFunction())));
    }

    @Override
    public Collection<String> apply(final Collection<String> parametersOrBody) {
        if (isAction(parametersOrBody, CREATE_UPDATE_PROFILE_ACTION_NVPS)) {
            return filterParameter(parametersOrBody, PASSWORD_PARAMETER, PASSWORD_PARAMETER_REDACTED);
        } else if (isAction(parametersOrBody, UPLOAD_CERT_ACTION_NVPS)) {
            return filterParameter(parametersOrBody, PRIVATE_KEY_PARAMETER, PRIVATE_KEY_PARAMETER_REDACTED);
        }
        return parametersOrBody;
    }

    private boolean isAction(final Collection<String> parametersOrBody, final Iterable<String> actionNvps) {
        return Iterables.tryFind(actionNvps, Predicates.in(parametersOrBody)).isPresent();
    }

    private Collection<String> filterParameter(final Collection<String> parametersOrBody, final String parameter,
            final String redacted) {
        final Optional<String> parameterAndValue = Iterables.tryFind(parametersOrBody,
                Strings.startsWith(parameter));
        if (parameterAndValue.isPresent()) {
            final ArrayList<String> parametersCopy = Lists.newArrayList(parametersOrBody);
            parametersCopy.set(parametersCopy.indexOf(parameterAndValue.get()), redacted);
            return parametersCopy;
        }
        return parametersOrBody;
    }
}