org.syncope.core.policy.PolicyEvaluator.java Source code

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Here is the source code for org.syncope.core.policy.PolicyEvaluator.java

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/*
 * 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 org.syncope.core.policy;

import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Component;
import org.syncope.core.persistence.beans.AbstractAttr;
import org.syncope.core.persistence.beans.AbstractAttributable;
import org.syncope.core.persistence.beans.Policy;
import org.syncope.core.persistence.beans.user.SyncopeUser;
import org.syncope.types.AbstractPolicySpec;
import org.syncope.types.AccountPolicySpec;
import org.syncope.types.PasswordPolicySpec;

@Component
public class PolicyEvaluator {

    /**
     * Logger.
     */
    protected static final Logger LOG = LoggerFactory.getLogger(PolicyEvaluator.class);

    public <T extends AbstractPolicySpec> T evaluate(final Policy policy, final AbstractAttributable attributable) {

        T result = null;

        if (policy != null) {
            AbstractAttr attribute;
            List<String> values;

            switch (policy.getType()) {
            case PASSWORD:
            case GLOBAL_PASSWORD:
                final PasswordPolicySpec pspec = policy.getSpecification();
                final PasswordPolicySpec passwordPolicy = new PasswordPolicySpec();

                BeanUtils.copyProperties(pspec, passwordPolicy, new String[] { "schemasNotPermitted" });

                for (String schema : pspec.getSchemasNotPermitted()) {
                    attribute = attributable.getAttribute(schema);
                    if (attribute != null) {
                        values = attribute.getValuesAsStrings();
                        if (values != null && !values.isEmpty()) {
                            passwordPolicy.getWordsNotPermitted().add(values.get(0));
                        }
                    }
                }

                // Password history verification and update
                final String password = ((SyncopeUser) attributable).getPassword();

                final List<String> passwordHistory = ((SyncopeUser) attributable).getPasswordHistory();

                if (((SyncopeUser) attributable).verifyPasswordHistory(
                        ((SyncopeUser) attributable).getClearPassword(), pspec.getHistoryLength())) {

                    passwordPolicy.getWordsNotPermitted().add(((SyncopeUser) attributable).getClearPassword());
                } else {

                    if (pspec.getHistoryLength() > 0 && password != null) {
                        passwordHistory.add(password);
                    }

                    if (pspec.getHistoryLength() < passwordHistory.size()) {
                        for (int i = 0; i < passwordHistory.size() - pspec.getHistoryLength(); i++) {

                            passwordHistory.remove(i);
                        }
                    }
                }

                result = (T) passwordPolicy;
                break;
            case ACCOUNT:
            case GLOBAL_ACCOUNT:
                final AccountPolicySpec spec = policy.getSpecification();
                final AccountPolicySpec accountPolicy = new AccountPolicySpec();

                BeanUtils.copyProperties(spec, accountPolicy, new String[] { "schemasNotPermitted" });

                for (String schema : spec.getSchemasNotPermitted()) {
                    attribute = attributable.getAttribute(schema);
                    if (attribute != null) {
                        values = attribute.getValuesAsStrings();
                        if (values != null && !values.isEmpty()) {
                            accountPolicy.getWordsNotPermitted().add(values.get(0));
                        }
                    }
                }

                result = (T) accountPolicy;
                break;
            case SYNC:
            case GLOBAL_SYNC:
                result = null;
                break;
            default:
                result = null;
            }
        }

        return result;
    }
}