gerrit.onap Code Review - policy/xacml-pdp.git/blob

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP
   4  * ================================================================================
   5  * Copyright (C) 2019-2020 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  * SPDX-License-Identifier: Apache-2.0
  20  * ============LICENSE_END=========================================================
  21  */
  22
  23 package org.onap.policy.xacml.pdp.application.guard;
  24
  25 import static org.assertj.core.api.Assertions.assertThat;
  26 import static org.assertj.core.api.Assertions.assertThatCode;
  27
  28 import com.att.research.xacml.api.Response;
  29 import java.io.File;
  30 import java.io.FileNotFoundException;
  31 import java.io.IOException;
  32 import java.sql.Date;
  33 import java.time.Instant;
  34 import java.util.Iterator;
  35 import java.util.List;
  36 import java.util.Map;
  37 import java.util.Properties;
  38 import java.util.ServiceLoader;
  39 import java.util.UUID;
  40 import javax.persistence.EntityManager;
  41 import javax.persistence.Persistence;
  42 import org.apache.commons.lang3.tuple.Pair;
  43 import org.junit.AfterClass;
  44 import org.junit.Before;
  45 import org.junit.BeforeClass;
  46 import org.junit.ClassRule;
  47 import org.junit.FixMethodOrder;
  48 import org.junit.Test;
  49 import org.junit.rules.TemporaryFolder;
  50 import org.junit.runners.MethodSorters;
  51 import org.onap.policy.common.endpoints.parameters.RestServerParameters;
  52 import org.onap.policy.common.utils.coder.CoderException;
  53 import org.onap.policy.common.utils.coder.StandardCoder;
  54 import org.onap.policy.common.utils.resources.TextFileUtils;
  55 import org.onap.policy.guard.OperationsHistory;
  56 import org.onap.policy.models.decisions.concepts.DecisionRequest;
  57 import org.onap.policy.models.decisions.concepts.DecisionResponse;
  58 import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
  59 import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyTypeIdentifier;
  60 import org.onap.policy.pdp.xacml.application.common.XacmlApplicationException;
  61 import org.onap.policy.pdp.xacml.application.common.XacmlApplicationServiceProvider;
  62 import org.onap.policy.pdp.xacml.application.common.XacmlPolicyUtils;
  63 import org.onap.policy.pdp.xacml.application.common.operationshistory.CountRecentOperationsPip;
  64 import org.onap.policy.pdp.xacml.xacmltest.TestUtils;
  65 import org.slf4j.Logger;
  66 import org.slf4j.LoggerFactory;
  67
  68 @FixMethodOrder(MethodSorters.NAME_ASCENDING)
  69 public class GuardPdpApplicationTest {
  70
  71     private static final Logger LOGGER = LoggerFactory.getLogger(GuardPdpApplicationTest.class);
  72     private static Properties properties = new Properties();
  73     private static File propertiesFile;
  74     private static RestServerParameters clientParams = new RestServerParameters();
  75     private static XacmlApplicationServiceProvider service;
  76     private static DecisionRequest requestVfCount;
  77     private static StandardCoder gson = new StandardCoder();
  78     private static EntityManager em;
  79     private static final String DENY = "Deny";
  80     private static final String PERMIT = "Permit";
  81
  82     @ClassRule
  83     public static final TemporaryFolder policyFolder = new TemporaryFolder();
  84
  85     /**
  86      * Copies the xacml.properties and policies files into temporary folder and loads the service provider saving
  87      * instance of provider off for other tests to use.
  88      */
  89     @BeforeClass
  90     public static void setup() throws Exception {
  91         LOGGER.info("Setting up class");
  92         //
  93         // Setup our temporary folder
  94         //
  95         XacmlPolicyUtils.FileCreator myCreator = (String filename) -> policyFolder.newFile(filename);
  96         propertiesFile = XacmlPolicyUtils.copyXacmlPropertiesContents("src/test/resources/xacml.properties", properties,
  97                 myCreator);
  98         //
  99         // Load service
 100         //
 101         ServiceLoader<XacmlApplicationServiceProvider> applicationLoader =
 102                 ServiceLoader.load(XacmlApplicationServiceProvider.class);
 103         //
 104         // Find the guard service application and save for use in all the tests
 105         //
 106         StringBuilder strDump = new StringBuilder("Loaded applications:" + XacmlPolicyUtils.LINE_SEPARATOR);
 107         Iterator<XacmlApplicationServiceProvider> iterator = applicationLoader.iterator();
 108         while (iterator.hasNext()) {
 109             XacmlApplicationServiceProvider application = iterator.next();
 110             //
 111             // Is it our service?
 112             //
 113             if (application instanceof GuardPdpApplication) {
 114                 //
 115                 // Should be the first and only one
 116                 //
 117                 assertThat(service).isNull();
 118                 service = application;
 119             }
 120             strDump.append(application.applicationName());
 121             strDump.append(" supports ");
 122             strDump.append(application.supportedPolicyTypes());
 123             strDump.append(XacmlPolicyUtils.LINE_SEPARATOR);
 124         }
 125         LOGGER.info("{}", strDump);
 126         //
 127         // Tell it to initialize based on the properties file
 128         // we just built for it.
 129         //
 130         service.initialize(propertiesFile.toPath().getParent(), clientParams);
 131         //
 132         // Load Decision Requests
 133         //
 134         requestVfCount =
 135                 gson.decode(TextFileUtils.getTextFileAsString("src/test/resources/requests/guard.vfCount.json"),
 136                         DecisionRequest.class);
 137         //
 138         // Create EntityManager for manipulating DB
 139         //
 140         String persistenceUnit = CountRecentOperationsPip.ISSUER_NAME + ".persistenceunit";
 141         em = Persistence
 142                 .createEntityManagerFactory(GuardPdpApplicationTest.properties.getProperty(persistenceUnit), properties)
 143                 .createEntityManager();
 144     }
 145
 146     /**
 147      * Close the entity manager.
 148      */
 149     @AfterClass
 150     public static void cleanup() throws Exception {
 151         if (em != null) {
 152             em.close();
 153         }
 154     }
 155
 156     /**
 157      * Clears the database before each test so there are no operations in it.
 158      *
 159      */
 160     @Before
 161     public void startClean() throws Exception {
 162         em.getTransaction().begin();
 163         em.createQuery("DELETE FROM OperationsHistory").executeUpdate();
 164         em.getTransaction().commit();
 165     }
 166
 167     /**
 168      * Check that decision matches expectation.
 169      *
 170      * @param expected from the response
 171      * @param response received
 172      *
 173      **/
 174     public void checkDecision(String expected, DecisionResponse response) throws CoderException {
 175         LOGGER.info("Looking for {} Decision", expected);
 176         assertThat(response).isNotNull();
 177         assertThat(response.getStatus()).isNotNull();
 178         assertThat(response.getStatus()).isEqualTo(expected);
 179         //
 180         // Dump it out as Json
 181         //
 182         LOGGER.info(gson.encode(response));
 183     }
 184
 185     /**
 186      * Request a decision and check that it matches expectation.
 187      *
 188      * @param request to send to Xacml PDP
 189      * @param expected from the response
 190      *
 191      **/
 192     public void requestAndCheckDecision(DecisionRequest request, String expected) throws CoderException {
 193         //
 194         // Ask for a decision
 195         //
 196         Pair<DecisionResponse, Response> decision = service.makeDecision(request, null);
 197         //
 198         // Check decision
 199         //
 200         checkDecision(expected, decision.getKey());
 201     }
 202
 203     @Test
 204     public void test1Basics() throws CoderException, IOException {
 205         LOGGER.info("**************** Running test1Basics ****************");
 206         //
 207         // Make sure there's an application name
 208         //
 209         assertThat(service.applicationName()).isNotEmpty();
 210         //
 211         // Decisions
 212         //
 213         assertThat(service.actionDecisionsSupported().size()).isEqualTo(1);
 214         assertThat(service.actionDecisionsSupported()).contains("guard");
 215         //
 216         // Ensure it has the supported policy types and
 217         // can support the correct policy types.
 218         //
 219         assertThat(service.supportedPolicyTypes()).isNotEmpty();
 220         assertThat(service.supportedPolicyTypes().size()).isEqualTo(5);
 221         assertThat(service.canSupportPolicyType(
 222                 new ToscaPolicyTypeIdentifier("onap.policies.controlloop.guard.common.FrequencyLimiter", "1.0.0")))
 223                         .isTrue();
 224         assertThat(service.canSupportPolicyType(
 225                 new ToscaPolicyTypeIdentifier("onap.policies.controlloop.guard.common.FrequencyLimiter", "1.0.1")))
 226                         .isFalse();
 227         assertThat(service.canSupportPolicyType(
 228                 new ToscaPolicyTypeIdentifier("onap.policies.controlloop.guard.common.MinMax", "1.0.0"))).isTrue();
 229         assertThat(service.canSupportPolicyType(
 230                 new ToscaPolicyTypeIdentifier("onap.policies.controlloop.guard.common.MinMax", "1.0.1"))).isFalse();
 231         assertThat(service.canSupportPolicyType(
 232                 new ToscaPolicyTypeIdentifier("onap.policies.controlloop.guard.common.Blacklist", "1.0.0"))).isTrue();
 233         assertThat(service.canSupportPolicyType(
 234                 new ToscaPolicyTypeIdentifier("onap.policies.controlloop.guard.common.Blacklist", "1.0.1"))).isFalse();
 235         assertThat(service.canSupportPolicyType(new ToscaPolicyTypeIdentifier(
 236                 "onap.policies.controlloop.guard.coordination.FirstBlocksSecond", "1.0.0"))).isTrue();
 237         assertThat(service.canSupportPolicyType(new ToscaPolicyTypeIdentifier(
 238                 "onap.policies.controlloop.guard.coordination.FirstBlocksSecond", "1.0.1"))).isFalse();
 239         assertThat(service.canSupportPolicyType(new ToscaPolicyTypeIdentifier("onap.foo", "1.0.1"))).isFalse();
 240         assertThat(service.canSupportPolicyType(
 241                 new ToscaPolicyTypeIdentifier("onap.policies.controlloop.guard.common.Filter", "1.0.0"))).isTrue();
 242     }
 243
 244     @Test
 245     public void test2NoPolicies() throws CoderException {
 246         LOGGER.info("**************** Running test2NoPolicies ****************");
 247         assertThatCode(() -> requestAndCheckDecision(requestVfCount, PERMIT)).doesNotThrowAnyException();
 248     }
 249
 250     @Test
 251     public void test3FrequencyLimiter()
 252             throws CoderException, FileNotFoundException, IOException, XacmlApplicationException {
 253         LOGGER.info("**************** Running test3FrequencyLimiter ****************");
 254         //
 255         // Now load the vDNS frequency limiter Policy - make sure
 256         // the pdp can support it and have it load
 257         // into the PDP.
 258         //
 259         List<ToscaPolicy> loadedPolicies =
 260                 TestUtils.loadPolicies("policies/vDNS.policy.guard.frequencylimiter.input.tosca.yaml", service);
 261         assertThat(loadedPolicies).hasSize(1);
 262         assertThat(loadedPolicies.get(0).getName()).isEqualTo("guard.frequency.scaleout");
 263         //
 264         // Zero recent actions: should get permit
 265         //
 266         requestAndCheckDecision(requestVfCount, PERMIT);
 267         //
 268         // Add entry into operations history DB
 269         //
 270         insertOperationEvent(requestVfCount);
 271         //
 272         // Two recent actions, more than specified limit of 2: should get deny
 273         //
 274         requestAndCheckDecision(requestVfCount, DENY);
 275     }
 276
 277     @SuppressWarnings("unchecked")
 278     @Test
 279     public void test4MinMax() throws CoderException, FileNotFoundException, IOException, XacmlApplicationException {
 280         LOGGER.info("**************** Running test4MinMax ****************");
 281         //
 282         // Now load the vDNS min max Policy - make sure
 283         // the pdp can support it and have it load
 284         // into the PDP.
 285         //
 286         List<ToscaPolicy> loadedPolicies =
 287                 TestUtils.loadPolicies("policies/vDNS.policy.guard.minmaxvnfs.input.tosca.yaml", service);
 288         assertThat(loadedPolicies).hasSize(1);
 289         assertThat(loadedPolicies.get(0).getName()).isEqualTo("guard.minmax.scaleout");
 290         //
 291         // vfcount=0 below min of 1: should get a Permit
 292         //
 293         requestAndCheckDecision(requestVfCount, PERMIT);
 294         //
 295         // vfcount=1 between min of 1 and max of 2: should get a Permit
 296         //
 297         ((Map<String, Object>) requestVfCount.getResource().get("guard")).put("vfCount", 1);
 298         requestAndCheckDecision(requestVfCount, PERMIT);
 299         //
 300         // vfcount=2 hits the max of 2: should get a Deny
 301         //
 302         ((Map<String, Object>) requestVfCount.getResource().get("guard")).put("vfCount", 2);
 303         requestAndCheckDecision(requestVfCount, DENY);
 304         //
 305         // vfcount=3 above max of 2: should get a Deny
 306         //
 307         ((Map<String, Object>) requestVfCount.getResource().get("guard")).put("vfCount", 3);
 308         requestAndCheckDecision(requestVfCount, DENY);
 309         //
 310         // Insert entry into operations history DB - to indicate a successful
 311         // VF Module Create.
 312         //
 313         insertOperationEvent(requestVfCount);
 314         //
 315         // vfcount=1 between min of 1 and max of 2; MinMax should succeed,
 316         // BUT the frequency limiter should fail
 317         //
 318         ((Map<String, Object>) requestVfCount.getResource().get("guard")).put("vfCount", 1);
 319         requestAndCheckDecision(requestVfCount, DENY);
 320     }
 321
 322     @SuppressWarnings("unchecked")
 323     @Test
 324     public void test5Blacklist() throws CoderException, XacmlApplicationException {
 325         LOGGER.info("**************** Running test5Blacklist ****************");
 326         //
 327         // Load the blacklist policy in with the others.
 328         //
 329         List<ToscaPolicy> loadedPolicies =
 330                 TestUtils.loadPolicies("policies/vDNS.policy.guard.blacklist.input.tosca.yaml", service);
 331         assertThat(loadedPolicies).hasSize(1);
 332         assertThat(loadedPolicies.get(0).getName()).isEqualTo("guard.blacklist.scaleout");
 333         //
 334         // vfcount=0 below min of 1: should get a Permit because target is NOT blacklisted
 335         //
 336         requestAndCheckDecision(requestVfCount, PERMIT);
 337         //
 338         // vfcount=1 between min of 1 and max of 2: change the
 339         //
 340         ((Map<String, Object>) requestVfCount.getResource().get("guard")).put("target",
 341                 "the-vfmodule-where-root-is-true");
 342         //
 343         // vfcount=0 below min of 1: should get a Deny because target IS blacklisted
 344         //
 345         requestAndCheckDecision(requestVfCount, DENY);
 346         //
 347         // vfcount=1 between min of 1 and max of 2: change the
 348         //
 349         ((Map<String, Object>) requestVfCount.getResource().get("guard")).put("target",
 350                 "another-vfmodule-where-root-is-true");
 351         //
 352         // vfcount=0 below min of 1: should get a Deny because target IS blacklisted
 353         //
 354         requestAndCheckDecision(requestVfCount, DENY);
 355     }
 356
 357     @SuppressWarnings("unchecked")
 358     @Test
 359     public void test6Filters() throws Exception {
 360         LOGGER.info("**************** Running test6Filters ****************");
 361         //
 362         // Re-Load Decision Request - so we can start from scratch
 363         //
 364         requestVfCount =
 365                 gson.decode(TextFileUtils.getTextFileAsString("src/test/resources/requests/guard.vfCount.json"),
 366                         DecisionRequest.class);
 367         //
 368         // Ensure we are a permit to start
 369         //
 370         requestAndCheckDecision(requestVfCount, PERMIT);
 371         //
 372         // Load the filter policy in with the others.
 373         //
 374         List<ToscaPolicy> loadedPolicies =
 375                 TestUtils.loadPolicies("src/test/resources/test.policy.guard.filters.yaml", service);
 376         assertThat(loadedPolicies).hasSize(2);
 377         //
 378         // Although the region is blacklisted, the id is not
 379         //
 380         requestAndCheckDecision(requestVfCount, PERMIT);
 381         //
 382         // Put in a different vnf id
 383         //
 384         ((Map<String, Object>) requestVfCount.getResource().get("guard")).put("generic-vnf.vnf-id",
 385                 "different-vnf-id-should-be-denied");
 386         //
 387         // The region is blacklisted, and the id is not allowed
 388         //
 389         requestAndCheckDecision(requestVfCount, DENY);
 390         //
 391         // Let's switch to a different region
 392         //
 393         ((Map<String, Object>) requestVfCount.getResource().get("guard")).put("cloud-region.cloud-region-id",
 394                 "RegionTwo");
 395         //
 396         // The region is whitelisted, and the id is also allowed
 397         //
 398         requestAndCheckDecision(requestVfCount, PERMIT);
 399         //
 400         // Put in a blacklisted vnf id
 401         //
 402         ((Map<String, Object>) requestVfCount.getResource().get("guard")).put("generic-vnf.vnf-id",
 403                 "f17face5-69cb-4c88-9e0b-7426db7edddd");
 404         //
 405         // Although region is whitelisted,  the id is blacklisted
 406         //
 407         requestAndCheckDecision(requestVfCount, DENY);
 408         //
 409         // Let's switch to a different region
 410         //
 411         ((Map<String, Object>) requestVfCount.getResource().get("guard")).put("cloud-region.cloud-region-id",
 412                 "RegionThree");
 413         //
 414         // There is no filter for this region, but the id is still blacklisted
 415         //
 416         requestAndCheckDecision(requestVfCount, DENY);
 417         //
 418         // Put in a different vnf id
 419         //
 420         ((Map<String, Object>) requestVfCount.getResource().get("guard")).put("generic-vnf.vnf-id",
 421                 "different-vnf-id-should-be-permitted");
 422         //
 423         // There is no filter for this region, and the id is not blacklisted
 424         //
 425         requestAndCheckDecision(requestVfCount, PERMIT);
 426     }
 427
 428     @SuppressWarnings("unchecked")
 429     private void insertOperationEvent(DecisionRequest request) {
 430         //
 431         // Get the properties
 432         //
 433         Map<String, Object> properties = (Map<String, Object>) request.getResource().get("guard");
 434         assertThat(properties).isNotNull();
 435         //
 436         // Add an entry
 437         //
 438         OperationsHistory newEntry = new OperationsHistory();
 439         newEntry.setActor(properties.get("actor").toString());
 440         newEntry.setOperation(properties.get("operation").toString());
 441         newEntry.setClosedLoopName(properties.get("clname").toString());
 442         newEntry.setOutcome("SUCCESS");
 443         newEntry.setStarttime(Date.from(Instant.now().minusMillis(20000)));
 444         newEntry.setEndtime(Date.from(Instant.now()));
 445         newEntry.setRequestId(UUID.randomUUID().toString());
 446         newEntry.setTarget(properties.get("target").toString());
 447         LOGGER.info("Inserting {}", newEntry);
 448         em.getTransaction().begin();
 449         em.persist(newEntry);
 450         em.getTransaction().commit();
 451     }
 452
 453 }