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/*
* ============LICENSE_START=======================================================
* ONAP : ccsdk features
* ================================================================================
* Copyright (C) 2021 highstreet technologies GmbH Intellectual Property.
* All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*
*/
package org.onap.ccsdk.features.sdnr.wt.oauthprovider.providers;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.ExecutionException;
import org.onap.ccsdk.features.sdnr.wt.oauthprovider.data.OdlPolicy;
import org.onap.ccsdk.features.sdnr.wt.oauthprovider.data.OdlPolicy.PolicyMethods;
import org.opendaylight.mdsal.binding.api.DataBroker;
import org.opendaylight.mdsal.binding.api.ReadTransaction;
import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.aaa.rev161214.HttpAuthorization;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.aaa.rev161214.http.authorization.Policies;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.aaa.rev161214.http.permission.Permissions;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.aaa.rev161214.http.permission.Permissions.Actions;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class MdSalAuthorizationStore {
private static final Logger LOG = LoggerFactory.getLogger(MdSalAuthorizationStore.class.getName());
private final DataBroker dataBroker;
public MdSalAuthorizationStore(DataBroker dataBroker) {
this.dataBroker = dataBroker;
}
public Optional<OdlPolicy> getPolicy(String path, List<String> userRoles) {
InstanceIdentifier<Policies> iif = InstanceIdentifier.create(HttpAuthorization.class).child(Policies.class);
Optional<Policies> odata = Optional.empty();
// The implicite close is not handled correctly by underlaying opendaylight netconf service
ReadTransaction transaction = this.dataBroker.newReadOnlyTransaction();
try {
odata = transaction.read(LogicalDatastoreType.CONFIGURATION, iif).get();
} catch (ExecutionException e) {
LOG.warn("unable to read policies from mdsal: ", e);
} catch (InterruptedException e) {
LOG.warn("Interrupted!", e);
// Restore interrupted state...
Thread.currentThread().interrupt();
}
if (odata.isEmpty()) {
return Optional.empty();
}
List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.aaa.rev161214.http.authorization.policies.Policies> data =
odata.get().getPolicies();
if (data == null) {
return Optional.empty();
}
Optional<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.aaa.rev161214.http.authorization.policies.Policies> entry =
data.stream().filter(e -> path.equals(e.getResource())).findFirst();
if (entry.isEmpty()) {
return Optional.empty();
}
List<Permissions> permissions = entry.get().getPermissions();
if (permissions == null) {
return Optional.empty();
}
Optional<Permissions> rolePm = permissions.stream().filter((e) -> userRoles.contains(e.getRole())).findFirst();
if (rolePm.isEmpty()) {
return Optional.empty();
}
return Optional.of(mapPolicy(path, rolePm.get().getActions()));
}
private OdlPolicy mapPolicy(String path, Set<Actions> actions) {
PolicyMethods methods = new PolicyMethods();
String action;
for (Actions a : actions) {
action = a.getName().toLowerCase();
switch (action) {
case "get":
methods.setGet(true);
break;
case "post":
methods.setPost(true);
break;
case "put":
methods.setPut(true);
break;
case "delete":
methods.setDelete(true);
break;
case "patch":
methods.setPatch(true);
break;
default:
LOG.warn("unknown http method {}", action);
break;
}
}
return new OdlPolicy(path, methods);
}
}
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