A1 PMS support for fine grained access control -A1 London

Issue-ID: CCSDK-3885
Signed-off-by: PatrikBuhr <patrik.buhr@est.tech>
Change-Id: I2ee8f40389d1d53cbfd9433232e0f35f2644361b

10 files changed, 483 insertions, 40 deletions

diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/configuration/ApplicationConfig.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/configuration/ApplicationConfig.java
index eea96927..3de674bd 100644
--- a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/configuration/ApplicationConfig.java
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/configuration/ApplicationConfig.java
@@ -28,6 +28,7 @@ import java.util.HashMap;
 import java.util.Map;
 
 import lombok.Getter;
+import lombok.Setter;
 
 import org.onap.ccsdk.oran.a1policymanagementservice.configuration.WebClientConfig.HttpProxyConfig;
 import org.onap.ccsdk.oran.a1policymanagementservice.exceptions.ServiceException;
@@ -98,6 +99,11 @@ public class ApplicationConfig {
     @Value("${app.s3.bucket:}")
     private String s3Bucket;
 
+    @Getter
+    @Setter
+    @Value("${app.authorization-provider:}")
+    private String authProviderUrl;
+
     private Map<String, RicConfig> ricConfigs = new HashMap<>();
 
     private WebClientConfig webClientConfig = null;
diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/authorization/AuthorizationCheck.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/authorization/AuthorizationCheck.java
new file mode 100644
index 00000000..0f376c06
--- /dev/null
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/authorization/AuthorizationCheck.java
@@ -0,0 +1,109 @@
+/*-
+ * ========================LICENSE_START=================================
+ * ONAP : ccsdk oran
+ * ======================================================================
+ * Copyright (C) 2023 Nordix Foundation. 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.oran.a1policymanagementservice.controllers.authorization;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+
+import java.lang.invoke.MethodHandles;
+import java.util.Map;
+
+import org.onap.ccsdk.oran.a1policymanagementservice.clients.AsyncRestClient;
+import org.onap.ccsdk.oran.a1policymanagementservice.clients.AsyncRestClientFactory;
+import org.onap.ccsdk.oran.a1policymanagementservice.clients.SecurityContext;
+import org.onap.ccsdk.oran.a1policymanagementservice.configuration.ApplicationConfig;
+import org.onap.ccsdk.oran.a1policymanagementservice.controllers.authorization.PolicyAuthorizationRequest.Input.AccessType;
+import org.onap.ccsdk.oran.a1policymanagementservice.exceptions.ServiceException;
+import org.onap.ccsdk.oran.a1policymanagementservice.repository.Policy;
+import org.onap.ccsdk.oran.a1policymanagementservice.repository.PolicyType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Component;
+
+import reactor.core.publisher.Mono;
+
+@Component
+public class AuthorizationCheck {
+
+    private final ApplicationConfig applicationConfig;
+    private final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
+    private final AsyncRestClient restClient;
+    private static Gson gson = new GsonBuilder().disableHtmlEscaping().create();
+
+    public AuthorizationCheck(ApplicationConfig applicationConfig, SecurityContext securityContext) {
+
+        this.applicationConfig = applicationConfig;
+        AsyncRestClientFactory restClientFactory =
+                new AsyncRestClientFactory(applicationConfig.getWebClientConfig(), securityContext);
+        this.restClient = restClientFactory.createRestClientUseHttpProxy("");
+    }
+
+    public Mono<Policy> doAccessControl(Map<String, String> receivedHttpHeaders, Policy policy, AccessType accessType) {
+        return doAccessControl(receivedHttpHeaders, policy.getType(), accessType) //
+                .map(x -> policy);
+    }
+
+    public Mono<PolicyType> doAccessControl(Map<String, String> receivedHttpHeaders, PolicyType type,
+            AccessType accessType) {
+        if (this.applicationConfig.getAuthProviderUrl().isEmpty()) {
+            return Mono.just(type);
+        }
+
+        String tkn = getAuthToken(receivedHttpHeaders);
+        PolicyAuthorizationRequest.Input input = PolicyAuthorizationRequest.Input.builder() //
+                .authToken(tkn) //
+                .policyTypeId(type.getId()) //
+                .accessType(accessType).build();
+
+        PolicyAuthorizationRequest req = PolicyAuthorizationRequest.builder().input(input).build();
+
+        String url = this.applicationConfig.getAuthProviderUrl();
+        return this.restClient.post(url, gson.toJson(req)) //
+                .doOnError(t -> logger.warn("Error returned from auth server: {}", t.getMessage())) //
+                .onErrorResume(t -> Mono.just("")) //
+                .flatMap(this::checkAuthResult) //
+                .map(rsp -> type);
+
+    }
+
+    private String getAuthToken(Map<String, String> httpHeaders) {
+        String tkn = httpHeaders.get("authorization");
+        if (tkn == null) {
+            logger.debug("No authorization token received in {}", httpHeaders);
+            return "";
+        }
+        tkn = tkn.substring("Bearer ".length());
+        return tkn;
+    }
+
+    private Mono<String> checkAuthResult(String response) {
+        logger.debug("Auth result: {}", response);
+        try {
+            AuthorizationResult res = gson.fromJson(response, AuthorizationResult.class);
+            return res != null && res.isResult() ? Mono.just(response)
+                    : Mono.error(new ServiceException("Not authorized", HttpStatus.UNAUTHORIZED));
+        } catch (Exception e) {
+            return Mono.error(e);
+        }
+    }
+
+}
diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/authorization/AuthorizationConsts.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/authorization/AuthorizationConsts.java
new file mode 100644
index 00000000..a905b9d1
--- /dev/null
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/authorization/AuthorizationConsts.java
@@ -0,0 +1,37 @@
+/*-
+ * ========================LICENSE_START=================================
+ * ONAP : ccsdk oran
+ * ======================================================================
+ * Copyright (C) 2023 Nordix Foundation. 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.oran.a1policymanagementservice.controllers.authorization;
+
+public class AuthorizationConsts {
+
+    public static final String AUTH_API_NAME = "Authorization API";
+    public static final String AUTH_API_DESCRIPTION =
+            """
+                    API used for authorization of information A1 policy access (this is provided by an authorization producer such as OPA).
+                    Note that this API is called by PMS, it is not provided.
+                    """;
+
+    public static final String GRANT_ACCESS_SUMMARY = "Request for access authorization.";
+    public static final String GRANT_ACCESS_DESCRIPTION = "The authorization function decides if access is granted.";
+
+    private AuthorizationConsts() {}
+
+}
diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyAuthorizationRequest.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/authorization/AuthorizationResult.java
index 63a53109..796c44e9 100644
--- a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyAuthorizationRequest.java
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/authorization/AuthorizationResult.java
@@ -2,7 +2,7 @@
  * ========================LICENSE_START=================================
  * ONAP : ccsdk oran
  * ======================================================================
- * Copyright (C) 2022 Nordix Foundation. All rights reserved.
+ * Copyright (C) 2023 Nordix Foundation. 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.
@@ -18,7 +18,7 @@
  * ========================LICENSE_END===================================
  */
 
-package org.onap.ccsdk.oran.a1policymanagementservice.controllers.v2;
+package org.onap.ccsdk.oran.a1policymanagementservice.controllers.authorization;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.google.gson.annotations.SerializedName;
@@ -28,20 +28,14 @@ import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Builder;
 import lombok.Getter;
 
-
-@Schema(name = "policy_authorization", description = "Authorization request for A1 policy requests")
+@Schema(name = "authorization_result", description = "Result of authorization")
 @Builder
-public class PolicyAuthorizationRequest {
-
-    @Schema(name = "acces_type", description = "Access type")
-    public enum AccessType {
-        READ, WRITE, DELETE
-    }
+public class AuthorizationResult {
 
-    @Schema(name = "access_type", description = "Access type", required = true)
-    @JsonProperty(value = "access_type", required = true)
-    @SerializedName("access_type")
+    @Schema(name = "result", description = "If true, the access is granted", required = true)
+    @JsonProperty(value = "result", required = true)
+    @SerializedName("result")
     @Getter
-    private String accessType;
+    private boolean result;
 
 }
diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/authorization/PolicyAuthorizationRequest.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/authorization/PolicyAuthorizationRequest.java
new file mode 100644
index 00000000..8dd4e7bb
--- /dev/null
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/authorization/PolicyAuthorizationRequest.java
@@ -0,0 +1,77 @@
+/*-
+ * ========================LICENSE_START=================================
+ * ONAP : ccsdk oran
+ * ======================================================================
+ * Copyright (C) 2023 Nordix Foundation. 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.oran.a1policymanagementservice.controllers.authorization;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.gson.annotations.SerializedName;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+
+@Schema(name = "policy_authorization", description = "Authorization request for A1 policy requests")
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+@Getter
+public class PolicyAuthorizationRequest {
+
+    @Schema(name = "input", description = "input")
+    @Builder
+    @AllArgsConstructor
+    @NoArgsConstructor
+    @Getter
+    @ToString
+    public static class Input {
+
+        @Schema(name = "acces_type", description = "Access type")
+        public enum AccessType {
+            READ, WRITE, DELETE
+        }
+
+        @Schema(name = "access_type", description = "Access type", required = true)
+        @JsonProperty(value = "access_type", required = true)
+        @SerializedName("access_type")
+        @Getter
+        private AccessType accessType;
+
+        @Schema(name = "policy_type_id", description = "Policy type identifier", required = true)
+        @SerializedName("policy_type_id")
+        @JsonProperty(value = "policy_type_id", required = true)
+        private String policyTypeId;
+
+        @Schema(name = "auth_token", description = "Authorization token", required = true)
+        @SerializedName("auth_token")
+        @JsonProperty(value = "auth_token", required = true)
+        private String authToken;
+
+    }
+
+    @Schema(name = "input", description = "Input", required = true)
+    @JsonProperty(value = "input", required = true)
+    @SerializedName("input")
+    private Input input;
+
+}
diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyController.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyController.java
index 395daa30..64905f44 100644
--- a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyController.java
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/PolicyController.java
@@ -36,11 +36,14 @@ import java.time.Instant;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
+import java.util.Map;
 
 import lombok.Getter;
 
 import org.onap.ccsdk.oran.a1policymanagementservice.clients.A1ClientFactory;
 import org.onap.ccsdk.oran.a1policymanagementservice.controllers.VoidResponse;
+import org.onap.ccsdk.oran.a1policymanagementservice.controllers.authorization.AuthorizationCheck;
+import org.onap.ccsdk.oran.a1policymanagementservice.controllers.authorization.PolicyAuthorizationRequest.Input.AccessType;
 import org.onap.ccsdk.oran.a1policymanagementservice.exceptions.EntityNotFoundException;
 import org.onap.ccsdk.oran.a1policymanagementservice.exceptions.ServiceException;
 import org.onap.ccsdk.oran.a1policymanagementservice.repository.Lock;
@@ -64,11 +67,13 @@ import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PutMapping;
 import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestHeader;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.reactive.function.client.WebClientException;
 import org.springframework.web.reactive.function.client.WebClientResponseException;
 
+import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 
 @RestController("PolicyControllerV2")
@@ -104,6 +109,9 @@ public class PolicyController {
     @Autowired
     private Services services;
 
+    @Autowired
+    private AuthorizationCheck authorization;
+
     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
     private static Gson gson = new GsonBuilder() //
             .create(); //
@@ -175,10 +183,13 @@ public class PolicyController {
                     description = "Policy is not found", //
                     content = @Content(schema = @Schema(implementation = ErrorResponse.ErrorInfo.class))) //
     })
-    public ResponseEntity<Object> getPolicy( //
-            @PathVariable(name = Consts.POLICY_ID_PARAM, required = true) String id) throws EntityNotFoundException {
-        Policy p = policies.getPolicy(id);
-        return new ResponseEntity<>(gson.toJson(toPolicyInfo(p)), HttpStatus.OK);
+    public Mono<ResponseEntity<Object>> getPolicy( //
+            @PathVariable(name = Consts.POLICY_ID_PARAM, required = true) String id,
+            @RequestHeader Map<String, String> headers) throws EntityNotFoundException {
+        Policy policy = policies.getPolicy(id);
+        return authorization.doAccessControl(headers, policy, AccessType.READ) //
+                .map(x -> new ResponseEntity<>((Object) gson.toJson(toPolicyInfo(policy)), HttpStatus.OK)) //
+                .onErrorResume(this::handleException);
     }
 
     @DeleteMapping(Consts.V2_API_ROOT + "/policies/{policy_id:.+}")
@@ -198,12 +209,15 @@ public class PolicyController {
                     content = @Content(schema = @Schema(implementation = ErrorResponse.ErrorInfo.class))) //
     })
     public Mono<ResponseEntity<Object>> deletePolicy( //
-            @PathVariable(Consts.POLICY_ID_PARAM) String policyId) throws EntityNotFoundException {
+            @PathVariable(Consts.POLICY_ID_PARAM) String policyId, @RequestHeader Map<String, String> headers)
+            throws EntityNotFoundException {
         Policy policy = policies.getPolicy(policyId);
         keepServiceAlive(policy.getOwnerServiceId());
 
-        return policy.getRic().getLock().lock(LockType.SHARED, "deletePolicy") //
-                .flatMap(grant -> deletePolicy(grant, policy));
+        return authorization.doAccessControl(headers, policy, AccessType.WRITE)
+                .flatMap(x -> policy.getRic().getLock().lock(LockType.SHARED, "deletePolicy")) //
+                .flatMap(grant -> deletePolicy(grant, policy)) //
+                .onErrorResume(this::handleException);
     }
 
     Mono<ResponseEntity<Object>> deletePolicy(Lock.Grant grant, Policy policy) {
@@ -232,7 +246,8 @@ public class PolicyController {
                     description = "Near-RT RIC or policy type is not found", //
                     content = @Content(schema = @Schema(implementation = ErrorResponse.ErrorInfo.class))) //
     })
-    public Mono<ResponseEntity<Object>> putPolicy(@RequestBody PolicyInfo policyInfo) throws EntityNotFoundException {
+    public Mono<ResponseEntity<Object>> putPolicy(@RequestBody PolicyInfo policyInfo,
+            @RequestHeader Map<String, String> headers) throws EntityNotFoundException {
 
         if (!policyInfo.validate()) {
             return ErrorResponse.createMono("Missing required parameter in body", HttpStatus.BAD_REQUEST);
@@ -255,8 +270,10 @@ public class PolicyController {
                 .statusNotificationUri(policyInfo.statusNotificationUri == null ? "" : policyInfo.statusNotificationUri) //
                 .build();
 
-        return ric.getLock().lock(LockType.SHARED, "putPolicy") //
-                .flatMap(grant -> putPolicy(grant, policy));
+        return authorization.doAccessControl(headers, policy, AccessType.WRITE) //
+                .flatMap(x -> ric.getLock().lock(LockType.SHARED, "putPolicy")) //
+                .flatMap(grant -> putPolicy(grant, policy)) //
+                .onErrorResume(this::handleException);
     }
 
     private Mono<ResponseEntity<Object>> putPolicy(Lock.Grant grant, Policy policy) {
@@ -285,6 +302,9 @@ public class PolicyController {
         } else if (throwable instanceof RejectionException) {
             RejectionException e = (RejectionException) throwable;
             return ErrorResponse.createMono(e.getMessage(), e.getStatus());
+        } else if (throwable instanceof ServiceException) {
+            ServiceException e = (ServiceException) throwable;
+            return ErrorResponse.createMono(e.getMessage(), e.getHttpStatus());
         } else {
             return ErrorResponse.createMono(throwable.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
         }
@@ -339,7 +359,7 @@ public class PolicyController {
                     description = "Near-RT RIC, policy type or service not found", //
                     content = @Content(schema = @Schema(implementation = ErrorResponse.ErrorInfo.class))) //
     })
-    public ResponseEntity<Object> getPolicyInstances( //
+    public Mono<ResponseEntity<Object>> getPolicyInstances( //
             @Parameter(name = Consts.POLICY_TYPE_ID_PARAM, required = false,
                     description = "Select policies with a given type identity.") //
             @RequestParam(name = Consts.POLICY_TYPE_ID_PARAM, required = false) String typeId, //
@@ -351,8 +371,8 @@ public class PolicyController {
             @RequestParam(name = Consts.SERVICE_ID_PARAM, required = false) String service,
             @Parameter(name = Consts.TYPE_NAME_PARAM, required = false, //
                     description = "Select policies of a given type name (type identity has the format <typename_version>)") //
-            @RequestParam(name = Consts.TYPE_NAME_PARAM, required = false) String typeName)
-            throws EntityNotFoundException //
+            @RequestParam(name = Consts.TYPE_NAME_PARAM, required = false) String typeName,
+            @RequestHeader Map<String, String> headers) throws EntityNotFoundException //
     {
         if ((typeId != null && this.policyTypes.get(typeId) == null)) {
             throw new EntityNotFoundException("Policy type identity not found");
@@ -361,8 +381,14 @@ public class PolicyController {
             throw new EntityNotFoundException("Near-RT RIC not found");
         }
 
-        String filteredPolicies = policiesToJson(policies.filterPolicies(typeId, ric, service, typeName));
-        return new ResponseEntity<>(filteredPolicies, HttpStatus.OK);
+        Collection<Policy> filtered = policies.filterPolicies(typeId, ric, service, typeName);
+        return Flux.fromIterable(filtered) //
+                .flatMap(policy -> authorization.doAccessControl(headers, policy, AccessType.READ)) //
+                .doOnError(e -> logger.debug("Unauthorized to read policy: {}", e.getMessage())) //
+                .onErrorResume(e -> Mono.empty()) //
+                .collectList() //
+                .map(authPolicies -> policiesToJson(authPolicies)) //
+                .map(str -> new ResponseEntity<>(str, HttpStatus.OK));
     }
 
     @GetMapping(path = Consts.V2_API_ROOT + "/policies", produces = MediaType.APPLICATION_JSON_VALUE) //
@@ -375,7 +401,7 @@ public class PolicyController {
                     description = "Near-RT RIC or type not found", //
                     content = @Content(schema = @Schema(implementation = ErrorResponse.ErrorInfo.class))) //
     })
-    public ResponseEntity<Object> getPolicyIds( //
+    public Mono<ResponseEntity<Object>> getPolicyIds( //
             @Parameter(name = Consts.POLICY_TYPE_ID_PARAM, required = false, //
                     description = "Select policies of a given policy type identity.") //
             @RequestParam(name = Consts.POLICY_TYPE_ID_PARAM, required = false) String policyTypeId, //
@@ -387,8 +413,8 @@ public class PolicyController {
             @RequestParam(name = Consts.SERVICE_ID_PARAM, required = false) String serviceId,
             @Parameter(name = Consts.TYPE_NAME_PARAM, required = false, //
                     description = "Select policies of types with the given type name (type identity has the format <typename_version>)") //
-            @RequestParam(name = Consts.TYPE_NAME_PARAM, required = false) String typeName)
-            throws EntityNotFoundException //
+            @RequestParam(name = Consts.TYPE_NAME_PARAM, required = false) String typeName,
+            @RequestHeader Map<String, String> headers) throws EntityNotFoundException //
     {
         if ((policyTypeId != null && this.policyTypes.get(policyTypeId) == null)) {
             throw new EntityNotFoundException("Policy type not found");
@@ -397,8 +423,14 @@ public class PolicyController {
             throw new EntityNotFoundException("Near-RT RIC not found");
         }
 
-        String policyIdsJson = toPolicyIdsJson(policies.filterPolicies(policyTypeId, ricId, serviceId, typeName));
-        return new ResponseEntity<>(policyIdsJson, HttpStatus.OK);
+        Collection<Policy> filtered = policies.filterPolicies(policyTypeId, ricId, serviceId, typeName);
+        return Flux.fromIterable(filtered) //
+                .flatMap(policy -> authorization.doAccessControl(headers, policy, AccessType.READ)) //
+                .doOnError(e -> logger.debug("Unauthorized to read policy: {}", e.getMessage())) //
+                .onErrorResume(e -> Mono.empty()) //
+                .collectList() //
+                .map(authPolicies -> toPolicyIdsJson(authPolicies)) //
+                .map(policyIdsJson -> new ResponseEntity<>(policyIdsJson, HttpStatus.OK));
     }
 
     @GetMapping(path = Consts.V2_API_ROOT + "/policies/{policy_id}/status", produces = MediaType.APPLICATION_JSON_VALUE)
@@ -412,10 +444,12 @@ public class PolicyController {
                     content = @Content(schema = @Schema(implementation = ErrorResponse.ErrorInfo.class))) //
     })
     public Mono<ResponseEntity<Object>> getPolicyStatus( //
-            @PathVariable(Consts.POLICY_ID_PARAM) String policyId) throws EntityNotFoundException {
+            @PathVariable(Consts.POLICY_ID_PARAM) String policyId, @RequestHeader Map<String, String> headers)
+            throws EntityNotFoundException {
         Policy policy = policies.getPolicy(policyId);
 
-        return a1ClientFactory.createA1Client(policy.getRic()) //
+        return authorization.doAccessControl(headers, policy, AccessType.READ) //
+                .flatMap(notUsed -> a1ClientFactory.createA1Client(policy.getRic())) //
                 .flatMap(client -> client.getPolicyStatus(policy).onErrorResume(e -> Mono.just("{}"))) //
                 .flatMap(status -> createPolicyStatus(policy, status)) //
                 .onErrorResume(this::handleException);
diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ServiceController.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ServiceController.java
index c3f41768..ed97820f 100644
--- a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ServiceController.java
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ServiceController.java
@@ -43,7 +43,6 @@ import org.onap.ccsdk.oran.a1policymanagementservice.repository.Policies;
 import org.onap.ccsdk.oran.a1policymanagementservice.repository.Policy;
 import org.onap.ccsdk.oran.a1policymanagementservice.repository.Service;
 import org.onap.ccsdk.oran.a1policymanagementservice.repository.Services;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
@@ -71,7 +70,6 @@ public class ServiceController {
 
     private static Gson gson = new GsonBuilder().create();
 
-    @Autowired
     ServiceController(Services services, Policies policies) {
         this.services = services;
         this.policies = policies;
diff --git a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/repository/Policies.java b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/repository/Policies.java
index 77ac0f4a..7eddeae1 100644
--- a/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/repository/Policies.java
+++ b/a1-policy-management/src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/repository/Policies.java
@@ -197,7 +197,7 @@ public class Policies {
 
         byte[] bytes = gson.toJson(toStorageObject(policy)).getBytes();
         this.dataStore.writeObject(this.getPath(policy), bytes) //
-                .doOnError(t -> logger.error("Could not store job in S3, reason: {}", t.getMessage())) //
+                .doOnError(t -> logger.error("Could not store policy in S3, reason: {}", t.getMessage())) //
                 .subscribe();
     }
 
diff --git a/a1-policy-management/src/test/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/OpenPolicyAgentSimulatorController.java b/a1-policy-management/src/test/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/OpenPolicyAgentSimulatorController.java
new file mode 100644
index 00000000..236c31b8
--- /dev/null
+++ b/a1-policy-management/src/test/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/OpenPolicyAgentSimulatorController.java
@@ -0,0 +1,112 @@
+/*-
+ * ========================LICENSE_START=================================
+ * ONAP : ccsdk oran
+ * ======================================================================
+ * Copyright (C) 2023 Nordix Foundation. 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.oran.a1policymanagementservice.controllers;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.media.Content;
+import io.swagger.v3.oas.annotations.media.Schema;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.responses.ApiResponses;
+import io.swagger.v3.oas.annotations.tags.Tag;
+
+import java.lang.invoke.MethodHandles;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
+import lombok.Getter;
+
+import org.onap.ccsdk.oran.a1policymanagementservice.controllers.authorization.AuthorizationConsts;
+import org.onap.ccsdk.oran.a1policymanagementservice.controllers.authorization.AuthorizationResult;
+import org.onap.ccsdk.oran.a1policymanagementservice.controllers.authorization.PolicyAuthorizationRequest;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestHeader;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController("OpenPolicyAgentSimulatorController")
+@Tag(name = AuthorizationConsts.AUTH_API_NAME, description = AuthorizationConsts.AUTH_API_DESCRIPTION)
+public class OpenPolicyAgentSimulatorController {
+    private static Gson gson = new GsonBuilder().disableHtmlEscaping().create();
+
+    private final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
+
+    public static final String ACCESS_CONTROL_URL = "/example-authz-check";
+    public static final String ACCESS_CONTROL_URL_REJECT = "/example-authz-check-reject";
+
+    public static class TestResults {
+
+        public List<PolicyAuthorizationRequest> receivedRequests =
+                Collections.synchronizedList(new ArrayList<PolicyAuthorizationRequest>());
+
+        public TestResults() {}
+
+        public void reset() {
+            receivedRequests.clear();
+
+        }
+    }
+
+    @Getter
+    private TestResults testResults = new TestResults();
+
+    @PostMapping(path = ACCESS_CONTROL_URL, produces = MediaType.APPLICATION_JSON_VALUE)
+    @Operation(summary = AuthorizationConsts.GRANT_ACCESS_SUMMARY,
+            description = AuthorizationConsts.GRANT_ACCESS_DESCRIPTION)
+    @ApiResponses(value = { //
+            @ApiResponse(responseCode = "200", description = "OK", //
+                    content = @Content(schema = @Schema(implementation = AuthorizationResult.class))) //
+    })
+    public ResponseEntity<Object> performAccessControl( //
+            @RequestHeader Map<String, String> headers, //
+            @RequestBody PolicyAuthorizationRequest request) {
+        logger.debug("Auth {}", request);
+        testResults.receivedRequests.add(request);
+
+        String res = gson.toJson(AuthorizationResult.builder().result(true).build());
+        return new ResponseEntity<>(res, HttpStatus.OK);
+    }
+
+    @PostMapping(path = ACCESS_CONTROL_URL_REJECT, produces = MediaType.APPLICATION_JSON_VALUE)
+    @Operation(summary = "Rejecting", description = "", hidden = true)
+    @ApiResponses(value = { //
+            @ApiResponse(responseCode = "200", description = "OK", //
+                    content = @Content(schema = @Schema(implementation = VoidResponse.class))) //
+    })
+    public ResponseEntity<Object> performAccessControlReject( //
+            @RequestHeader Map<String, String> headers, //
+            @RequestBody PolicyAuthorizationRequest request) {
+        logger.debug("Auth Reject {}", request);
+        testResults.receivedRequests.add(request);
+        String res = gson.toJson(AuthorizationResult.builder().result(false).build());
+        return new ResponseEntity<>(res, HttpStatus.OK);
+    }
+
+}
diff --git a/a1-policy-management/src/test/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ApplicationTest.java b/a1-policy-management/src/test/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ApplicationTest.java
index 9f0473df..066adc48 100644
--- a/a1-policy-management/src/test/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ApplicationTest.java
+++ b/a1-policy-management/src/test/java/org/onap/ccsdk/oran/a1policymanagementservice/controllers/v2/ApplicationTest.java
@@ -46,6 +46,7 @@ import java.util.List;
 import org.json.JSONObject;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.MethodOrderer;
 import org.junit.jupiter.api.Test;
@@ -58,7 +59,10 @@ import org.onap.ccsdk.oran.a1policymanagementservice.configuration.ApplicationCo
 import org.onap.ccsdk.oran.a1policymanagementservice.configuration.ApplicationConfig.RicConfigUpdate;
 import org.onap.ccsdk.oran.a1policymanagementservice.configuration.RicConfig;
 import org.onap.ccsdk.oran.a1policymanagementservice.configuration.WebClientConfig;
+import org.onap.ccsdk.oran.a1policymanagementservice.controllers.OpenPolicyAgentSimulatorController;
 import org.onap.ccsdk.oran.a1policymanagementservice.controllers.ServiceCallbackInfo;
+import org.onap.ccsdk.oran.a1policymanagementservice.controllers.authorization.PolicyAuthorizationRequest;
+import org.onap.ccsdk.oran.a1policymanagementservice.controllers.authorization.PolicyAuthorizationRequest.Input.AccessType;
 import org.onap.ccsdk.oran.a1policymanagementservice.exceptions.ServiceException;
 import org.onap.ccsdk.oran.a1policymanagementservice.repository.Lock;
 import org.onap.ccsdk.oran.a1policymanagementservice.repository.Lock.LockType;
@@ -145,6 +149,9 @@ class ApplicationTest {
     @Autowired
     SecurityContext securityContext;
 
+    @Autowired
+    OpenPolicyAgentSimulatorController openPolicyAgentSimulatorController;
+
     private static Gson gson = new GsonBuilder().create();
 
     /**
@@ -174,6 +181,11 @@ class ApplicationTest {
     @LocalServerPort
     private int port;
 
+    @BeforeEach
+    void init() {
+        this.applicationConfig.setAuthProviderUrl(baseUrl() + OpenPolicyAgentSimulatorController.ACCESS_CONTROL_URL);
+    }
+
     @AfterEach
     void reset() {
         rics.clear();
@@ -184,6 +196,7 @@ class ApplicationTest {
         this.rAppSimulator.getTestResults().clear();
         this.a1ClientFactory.setPolicyTypes(policyTypes); // Default same types in RIC and in this app
         this.securityContext.setAuthTokenFilePath(null);
+        this.openPolicyAgentSimulatorController.getTestResults().reset();
     }
 
     @AfterAll
@@ -513,6 +526,15 @@ class ApplicationTest {
         this.rics.getRic(ricId).setState(Ric.RicState.AVAILABLE);
 
         restClient().put(url, policyBody).block();
+        {
+            // Check the authorization request
+            OpenPolicyAgentSimulatorController.TestResults res =
+                    this.openPolicyAgentSimulatorController.getTestResults();
+            assertThat(res.receivedRequests).hasSize(1);
+            PolicyAuthorizationRequest req = res.receivedRequests.get(0);
+            assertThat(req.getInput().getAccessType()).isEqualTo(AccessType.WRITE);
+            assertThat(req.getInput().getPolicyTypeId()).isEqualTo(policyTypeName);
+        }
 
         Policy policy = policies.getPolicy(policyInstanceId);
         assertThat(policy).isNotNull();
@@ -551,6 +573,57 @@ class ApplicationTest {
     }
 
     @Test
+    void testFineGrainedAuth() throws Exception {
+        final String POLICY_ID = "policyId";
+        final String RIC_ID = "ric1";
+        final String TYPE_ID = "typeName";
+        addPolicy(POLICY_ID, TYPE_ID, null, RIC_ID);
+        assertThat(policies.size()).isEqualTo(1);
+
+        this.applicationConfig
+                .setAuthProviderUrl(baseUrl() + OpenPolicyAgentSimulatorController.ACCESS_CONTROL_URL_REJECT);
+
+        String url = "/policy-instances";
+        String rsp = restClient().get(url).block();
+        assertThat(rsp).as("Response contains no policy instance ID.").contains("[]");
+
+        url = "/policies/" + POLICY_ID;
+        testErrorCode(restClient().delete(url), HttpStatus.UNAUTHORIZED, "Not authorized");
+
+        url = "/policies";
+        String policyBody = putPolicyBody(null, RIC_ID, TYPE_ID, POLICY_ID, false, null);
+        testErrorCode(restClient().put(url, policyBody), HttpStatus.UNAUTHORIZED, "Not authorized");
+
+        rsp = restClient().get(url).block();
+        assertThat(rsp).as("Response contains no policy instance ID.").contains("[]");
+    }
+
+    @Test
+    void testFineGrainedAuth_OPA_UNAVALIABLE() throws Exception {
+        final String POLICY_ID = "policyId";
+        final String RIC_ID = "ric1";
+        final String TYPE_ID = "typeName";
+        addPolicy(POLICY_ID, TYPE_ID, null, RIC_ID);
+        assertThat(policies.size()).isEqualTo(1);
+
+        this.applicationConfig.setAuthProviderUrl("junk");
+
+        String url = "/policy-instances";
+        String rsp = restClient().get(url).block();
+        assertThat(rsp).as("Response contains no policy instance ID.").contains("[]");
+
+        url = "/policies/" + POLICY_ID;
+        testErrorCode(restClient().delete(url), HttpStatus.UNAUTHORIZED, "Not authorized");
+
+        url = "/policies";
+        String policyBody = putPolicyBody(null, RIC_ID, TYPE_ID, POLICY_ID, false, null);
+        testErrorCode(restClient().put(url, policyBody), HttpStatus.UNAUTHORIZED, "Not authorized");
+
+        rsp = restClient().get(url).block();
+        assertThat(rsp).as("Response contains no policy instance ID.").contains("[]");
+    }
+
+    @Test
     @DisplayName("test Put Policy No Service No Status Uri")
     void testPutPolicy_NoServiceNoStatusUri() throws Exception {
         String ricId = "ric.1";
@@ -1042,6 +1115,7 @@ class ApplicationTest {
     @Test
     @DisplayName("test Concurrency")
     void testConcurrency() throws Exception {
+        this.applicationConfig.setAuthProviderUrl("");
         logger.info("Concurrency test starting");
         final Instant startTime = Instant.now();
         List<Thread> threads = new ArrayList<>();
@@ -1138,8 +1212,10 @@ class ApplicationTest {
             boolean expectApplicationProblemJsonMediaType) {
         assertTrue(throwable instanceof WebClientResponseException);
         WebClientResponseException responseException = (WebClientResponseException) throwable;
+        String body = responseException.getResponseBodyAsString();
+        assertThat(body).contains(responseContains);
         assertThat(responseException.getStatusCode()).isEqualTo(expStatus);
-        assertThat(responseException.getResponseBodyAsString()).contains(responseContains);
+
         if (expectApplicationProblemJsonMediaType) {
             assertThat(responseException.getHeaders().getContentType()).isEqualTo(MediaType.APPLICATION_PROBLEM_JSON);
         }