1 files changed, 118 insertions, 0 deletions
diff --git a/sdnr/wt/oauth-provider/oauth-core/src/main/java/org/onap/ccsdk/features/sdnr/wt/oauthprovider/providers/MdSalAuthorizationStore.java b/sdnr/wt/oauth-provider/oauth-core/src/main/java/org/onap/ccsdk/features/sdnr/wt/oauthprovider/providers/MdSalAuthorizationStore.java
new file mode 100644
index 000000000..4bf35e72d
--- /dev/null
+++ b/sdnr/wt/oauth-provider/oauth-core/src/main/java/org/onap/ccsdk/features/sdnr/wt/oauthprovider/providers/MdSalAuthorizationStore.java
@@ -0,0 +1,118 @@
+/*
+ * ============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);
+    }
+
+}