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ThingCommandEnforcementTest.java
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ThingCommandEnforcementTest.java
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/*
* Copyright (c) 2022 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.things.service.enforcement;
import static org.assertj.core.api.Assertions.assertThat;
import static org.eclipse.ditto.base.model.json.JsonSchemaVersion.V_2;
import static org.eclipse.ditto.policies.model.SubjectIssuer.GOOGLE;
import static org.eclipse.ditto.things.service.enforcement.TestSetup.THING_ID;
import java.time.Instant;
import java.util.Collections;
import java.util.List;
import java.util.Objects;
import java.util.UUID;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.TimeUnit;
import java.util.function.Consumer;
import java.util.stream.Stream;
import javax.annotation.Nullable;
import org.assertj.core.api.Assertions;
import org.eclipse.ditto.base.model.auth.AuthorizationContext;
import org.eclipse.ditto.base.model.auth.AuthorizationSubject;
import org.eclipse.ditto.base.model.auth.DittoAuthorizationContextType;
import org.eclipse.ditto.base.model.common.HttpStatus;
import org.eclipse.ditto.base.model.exceptions.DittoRuntimeException;
import org.eclipse.ditto.base.model.exceptions.DittoRuntimeExceptionBuilder;
import org.eclipse.ditto.base.model.headers.DittoHeaders;
import org.eclipse.ditto.base.model.headers.DittoHeadersBuilder;
import org.eclipse.ditto.base.model.headers.WithDittoHeaders;
import org.eclipse.ditto.base.model.headers.entitytag.EntityTagMatcher;
import org.eclipse.ditto.base.model.headers.entitytag.EntityTagMatchers;
import org.eclipse.ditto.base.model.json.FieldType;
import org.eclipse.ditto.base.model.json.JsonSchemaVersion;
import org.eclipse.ditto.base.model.signals.Signal;
import org.eclipse.ditto.base.service.actors.ShutdownBehaviour;
import org.eclipse.ditto.base.service.config.supervision.ExponentialBackOffConfig;
import org.eclipse.ditto.internal.utils.config.DefaultScopedConfig;
import org.eclipse.ditto.internal.utils.persistentactors.AbstractPersistenceSupervisor;
import org.eclipse.ditto.internal.utils.pubsub.LiveSignalPub;
import org.eclipse.ditto.json.JsonFactory;
import org.eclipse.ditto.json.JsonObject;
import org.eclipse.ditto.json.JsonPointer;
import org.eclipse.ditto.json.JsonValue;
import org.eclipse.ditto.policies.api.commands.sudo.SudoRetrievePolicy;
import org.eclipse.ditto.policies.api.commands.sudo.SudoRetrievePolicyResponse;
import org.eclipse.ditto.policies.enforcement.DefaultCreationRestrictionEnforcer;
import org.eclipse.ditto.policies.enforcement.config.DefaultEnforcementConfig;
import org.eclipse.ditto.policies.enforcement.config.DefaultEntityCreationConfig;
import org.eclipse.ditto.policies.model.Permissions;
import org.eclipse.ditto.policies.model.PoliciesModelFactory;
import org.eclipse.ditto.policies.model.PoliciesResourceType;
import org.eclipse.ditto.policies.model.Policy;
import org.eclipse.ditto.policies.model.PolicyId;
import org.eclipse.ditto.policies.model.PolicyIdInvalidException;
import org.eclipse.ditto.policies.model.Subject;
import org.eclipse.ditto.policies.model.SubjectId;
import org.eclipse.ditto.policies.model.signals.commands.exceptions.PolicyNotAccessibleException;
import org.eclipse.ditto.policies.model.signals.commands.modify.CreatePolicy;
import org.eclipse.ditto.policies.model.signals.commands.modify.CreatePolicyResponse;
import org.eclipse.ditto.policies.model.signals.commands.query.RetrievePolicy;
import org.eclipse.ditto.policies.model.signals.commands.query.RetrievePolicyResponse;
import org.eclipse.ditto.things.api.Permission;
import org.eclipse.ditto.things.api.commands.sudo.SudoRetrieveThing;
import org.eclipse.ditto.things.api.commands.sudo.SudoRetrieveThingResponse;
import org.eclipse.ditto.things.model.Feature;
import org.eclipse.ditto.things.model.Thing;
import org.eclipse.ditto.things.model.ThingBuilder;
import org.eclipse.ditto.things.model.ThingId;
import org.eclipse.ditto.things.model.ThingsModelFactory;
import org.eclipse.ditto.things.model.signals.commands.ThingCommand;
import org.eclipse.ditto.things.model.signals.commands.exceptions.FeatureNotModifiableException;
import org.eclipse.ditto.things.model.signals.commands.exceptions.LiveChannelConditionNotAllowedException;
import org.eclipse.ditto.things.model.signals.commands.exceptions.PolicyInvalidException;
import org.eclipse.ditto.things.model.signals.commands.exceptions.ThingConditionFailedException;
import org.eclipse.ditto.things.model.signals.commands.exceptions.ThingConditionInvalidException;
import org.eclipse.ditto.things.model.signals.commands.exceptions.ThingNotAccessibleException;
import org.eclipse.ditto.things.model.signals.commands.exceptions.ThingNotCreatableException;
import org.eclipse.ditto.things.model.signals.commands.exceptions.ThingNotModifiableException;
import org.eclipse.ditto.things.model.signals.commands.exceptions.ThingUnavailableException;
import org.eclipse.ditto.things.model.signals.commands.modify.CreateThing;
import org.eclipse.ditto.things.model.signals.commands.modify.CreateThingResponse;
import org.eclipse.ditto.things.model.signals.commands.modify.ModifyAttribute;
import org.eclipse.ditto.things.model.signals.commands.modify.ModifyAttributeResponse;
import org.eclipse.ditto.things.model.signals.commands.modify.ModifyFeature;
import org.eclipse.ditto.things.model.signals.commands.modify.ModifyPolicyId;
import org.eclipse.ditto.things.model.signals.commands.modify.ModifyPolicyIdResponse;
import org.eclipse.ditto.things.model.signals.commands.modify.ModifyThing;
import org.eclipse.ditto.things.model.signals.commands.query.RetrieveAttribute;
import org.eclipse.ditto.things.model.signals.commands.query.RetrieveAttributeResponse;
import org.eclipse.ditto.things.model.signals.commands.query.RetrieveThing;
import org.eclipse.ditto.things.model.signals.commands.query.RetrieveThingResponse;
import org.eclipse.ditto.things.service.common.config.DittoThingsConfig;
import org.eclipse.ditto.things.service.persistence.actors.ResponseReceiverCache;
import org.eclipse.ditto.things.service.persistence.actors.ThingEnforcerActor;
import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TestName;
import com.typesafe.config.ConfigFactory;
import akka.actor.ActorRef;
import akka.actor.ActorSystem;
import akka.actor.Props;
import akka.testkit.TestActorRef;
import akka.testkit.TestProbe;
import akka.testkit.javadsl.TestKit;
import scala.concurrent.duration.Duration;
/**
* Tests {@link ThingCommandEnforcement} in context of a {@link ThingEnforcerActor}.
*/
@SuppressWarnings({"squid:S3599", "squid:S1171"})
public final class ThingCommandEnforcementTest {
@Rule
public final TestName testName = new TestName();
private ActorSystem system;
private TestProbe pubSubMediatorProbe;
private TestProbe thingPersistenceActorProbe;
private TestProbe ackReceiverActorProbe;
private TestProbe policiesShardRegionProbe;
private ActorRef supervisor;
private MockThingPersistenceSupervisor mockThingPersistenceSupervisor;
@Before
public void init() {
system = ActorSystem.create("test", ConfigFactory.load("test"));
pubSubMediatorProbe = createPubSubMediatorProbe();
thingPersistenceActorProbe = createThingPersistenceActorProbe();
ackReceiverActorProbe = getTestProbe(createUniqueName("ackReceiverActorProbe-"));
policiesShardRegionProbe = getTestProbe(createUniqueName("policiesShardRegionProbe-"));
final TestActorRef<MockThingPersistenceSupervisor> thingPersistenceSupervisorTestActorRef =
createThingPersistenceSupervisor();
supervisor = thingPersistenceSupervisorTestActorRef;
mockThingPersistenceSupervisor = thingPersistenceSupervisorTestActorRef.underlyingActor();
}
@After
public void shutdown() {
if (system != null) {
TestKit.shutdownActorSystem(system);
}
}
@Test
public void rejectByPolicy() {
final PolicyId policyId = PolicyId.of("empty:policy");
final JsonObject thingWithEmptyPolicy = TestSetup.newThingWithPolicyId(policyId);
final JsonObject emptyPolicy = PoliciesModelFactory.newPolicyBuilder(policyId)
.setRevision(1L)
.build()
.toJson(FieldType.all());
final SudoRetrieveThingResponse sudoRetrieveThingResponse =
SudoRetrieveThingResponse.of(thingWithEmptyPolicy, DittoHeaders.empty());
final SudoRetrievePolicyResponse sudoRetrievePolicyResponse =
SudoRetrievePolicyResponse.of(policyId, emptyPolicy, DittoHeaders.empty());
new TestKit(system) {{
supervisor.tell(getReadCommand(), getRef());
expectAndAnswerSudoRetrieveThing(sudoRetrieveThingResponse);
expectAndAnswerSudoRetrievePolicy(policyId, sudoRetrievePolicyResponse);
TestSetup.fishForMsgClass(this, ThingNotAccessibleException.class);
supervisor.tell(getModifyCommand(), getRef());
expectMsgClass(FeatureNotModifiableException.class);
}};
}
@Test
public void rejectQueryByThingNotAccessibleException() {
final DittoRuntimeException error = ThingNotAccessibleException.newBuilder(THING_ID).build();
new TestKit(system) {{
expectAndAnswerSudoRetrieveThing(error);
supervisor.tell(getReadCommand(), getRef());
fishForMessage(Duration.create(500, TimeUnit.MILLISECONDS), "error", msg -> msg.equals(error));
}};
}
@Test
public void rejectUpdateByThingNotAccessibleException() {
final DittoRuntimeException error = ThingNotAccessibleException.newBuilder(THING_ID).build();
new TestKit(system) {{
expectAndAnswerSudoRetrieveThing(error);
supervisor.tell(getModifyCommand(), getRef());
expectMsgClass(ThingNotModifiableException.class);
}};
}
@Test
public void rejectQueryByPolicyNotAccessibleException() {
final PolicyId policyId = PolicyId.of("not:accessible");
final SudoRetrieveThingResponse sudoRetrieveThingResponse =
SudoRetrieveThingResponse.of(TestSetup.newThingWithPolicyId(policyId), DittoHeaders.empty());
new TestKit(system) {{
expectAndAnswerSudoRetrieveThing(sudoRetrieveThingResponse);
expectAndAnswerSudoRetrievePolicy(policyId, PolicyNotAccessibleException.newBuilder(policyId).build());
supervisor.tell(getReadCommand(), getRef());
final DittoRuntimeException error = TestSetup.fishForMsgClass(this, ThingNotAccessibleException.class);
assertThat(error.getMessage()).contains(THING_ID);
}};
}
@Test
public void rejectUpdateByPolicyNotAccessibleException() {
final PolicyId policyId = PolicyId.of("not:accessible");
final SudoRetrieveThingResponse sudoRetrieveThingResponse =
SudoRetrieveThingResponse.of(TestSetup.newThingWithPolicyId(policyId), DittoHeaders.empty());
new TestKit(system) {{
expectAndAnswerSudoRetrieveThing(sudoRetrieveThingResponse);
expectAndAnswerSudoRetrievePolicy(policyId, PolicyNotAccessibleException.newBuilder(policyId).build());
supervisor.tell(getModifyCommand(), getRef());
final DittoRuntimeException error = TestSetup.fishForMsgClass(this, ThingNotModifiableException.class);
assertThat(error.getMessage()).contains(THING_ID);
}};
}
@Test
public void rejectCreateByOwnPolicy() {
final PolicyId policyId = PolicyId.of("empty:policy");
final Policy policy = PoliciesModelFactory.newPolicyBuilder(policyId)
.forLabel("dummy")
.setSubject(GOOGLE, "not-subject")
.setGrantedPermissions(PoliciesResourceType.policyResource("/"),
Permissions.newInstance(Permission.READ, Permission.WRITE))
.build();
final Thing thing = newThing().build();
new TestKit(system) {{
expectAndAnswerSudoRetrieveThing(ThingNotAccessibleException.newBuilder(THING_ID).build());
final CreateThing createThing = CreateThing.of(thing, policy.toJson(), headers());
supervisor.tell(createThing, getRef());
TestSetup.fishForMsgClass(this, ThingNotModifiableException.class);
}};
}
@Test
public void acceptByPolicy() {
final PolicyId policyId = PolicyId.of("policy:id");
final JsonObject thingWithPolicy = TestSetup.newThingWithPolicyId(policyId);
final JsonObject policy = PoliciesModelFactory.newPolicyBuilder(policyId)
.setRevision(1L)
.forLabel("authorize-self")
.setSubject(GOOGLE, TestSetup.SUBJECT_ID)
.setGrantedPermissions(PoliciesResourceType.thingResource(JsonPointer.empty()),
Permissions.newInstance(Permission.READ, Permission.WRITE))
.build()
.toJson(FieldType.all());
final SudoRetrieveThingResponse sudoRetrieveThingResponse =
SudoRetrieveThingResponse.of(thingWithPolicy, DittoHeaders.empty());
final SudoRetrievePolicyResponse sudoRetrievePolicyResponse =
SudoRetrievePolicyResponse.of(policyId, policy, DittoHeaders.empty());
new TestKit(system) {{
final ThingCommand<?> write = getModifyCommand();
supervisor.tell(write, getRef());
expectAndAnswerSudoRetrieveThing(sudoRetrieveThingResponse);
expectAndAnswerSudoRetrievePolicy(policyId, sudoRetrievePolicyResponse);
final ThingCommand<?> expectedWriteCommand = addReadSubjectHeader(write,
SubjectId.newInstance(GOOGLE, TestSetup.SUBJECT_ID));
thingPersistenceActorProbe.expectMsg(expectedWriteCommand);
final ThingCommand<?> read = getReadCommand();
final RetrieveThingResponse retrieveThingResponse =
RetrieveThingResponse.of(THING_ID, JsonFactory.newObject(), DittoHeaders.empty());
supervisor.tell(read, getRef());
final ThingCommand<?> expectedReadCommand = addReadSubjectHeader(read,
SubjectId.newInstance(GOOGLE, TestSetup.SUBJECT_ID));
thingPersistenceActorProbe.expectMsg(expectedReadCommand);
thingPersistenceActorProbe.reply(retrieveThingResponse);
expectMsg(retrieveThingResponse);
}};
}
@Test
public void acceptByPolicyWithRevokeOnAttribute() {
final PolicyId policyId = PolicyId.of("policy:id");
final JsonObject thingWithPolicy = newThingWithAttributeWithPolicyId(policyId);
final JsonPointer attributePointer = JsonPointer.of("/attributes/testAttr");
final JsonObject policy = PoliciesModelFactory.newPolicyBuilder(policyId)
.setRevision(1L)
.forLabel("authorize-self")
.setSubject(GOOGLE, TestSetup.SUBJECT_ID)
.setGrantedPermissions(PoliciesResourceType.thingResource(JsonPointer.empty()),
Permissions.newInstance(Permission.READ, Permission.WRITE))
.setRevokedPermissions(PoliciesResourceType.thingResource(attributePointer),
Permissions.newInstance(Permission.READ))
.build()
.toJson(FieldType.all());
final SudoRetrieveThingResponse sudoRetrieveThingResponse =
SudoRetrieveThingResponse.of(thingWithPolicy, DittoHeaders.empty());
final SudoRetrievePolicyResponse sudoRetrievePolicyResponse =
SudoRetrievePolicyResponse.of(policyId, policy, DittoHeaders.empty());
new TestKit(system) {{
final ThingCommand<?> modifyCommand = getModifyCommand();
supervisor.tell(modifyCommand, getRef());
expectAndAnswerSudoRetrieveThing(sudoRetrieveThingResponse);
expectAndAnswerSudoRetrievePolicy(policyId, sudoRetrievePolicyResponse);
final ThingCommand<?> expectedModifyCommand = addReadSubjectHeader(modifyCommand,
SubjectId.newInstance(GOOGLE, TestSetup.SUBJECT_ID));
thingPersistenceActorProbe.expectMsg(expectedModifyCommand);
final RetrieveThingResponse retrieveThingResponseWithAttr =
RetrieveThingResponse.of(THING_ID, thingWithPolicy, headers());
supervisor.tell(getReadCommand(), getRef());
thingPersistenceActorProbe.reply(retrieveThingResponseWithAttr);
final JsonObject jsonObjectWithoutAttr = thingWithPolicy.remove(attributePointer);
final RetrieveThingResponse retrieveThingResponseWithoutAttr =
RetrieveThingResponse.of(THING_ID, jsonObjectWithoutAttr, headers());
expectMsg(retrieveThingResponseWithoutAttr);
}};
}
@Test
public void enforceConditionAndLiveChannelCondition() {
final PolicyId policyId = PolicyId.of("policy:id");
final JsonObject thing = newThingWithAttributeWithPolicyId(policyId).toBuilder()
.set(JsonPointer.of("/features/revokedFeature/properties/right"), "revoked")
.set(JsonPointer.of("/features/grantedFeature/properties/right"), "granted")
.build();
final JsonPointer revokedFeaturePointer = JsonPointer.of("/features/revokedFeature");
// GIVEN: policy revoke READ on 1 feature
final JsonObject policy = PoliciesModelFactory.newPolicyBuilder(policyId)
.setRevision(1L)
.forLabel("authorize-self")
.setSubject(GOOGLE, TestSetup.SUBJECT_ID)
.setGrantedPermissions(PoliciesResourceType.thingResource(JsonPointer.empty()),
Permissions.newInstance(Permission.READ, Permission.WRITE))
.setRevokedPermissions(PoliciesResourceType.thingResource(revokedFeaturePointer),
Permissions.newInstance(Permission.READ))
.build()
.toJson(FieldType.all());
final SudoRetrieveThingResponse sudoRetrieveThingResponse =
SudoRetrieveThingResponse.of(thing, DittoHeaders.empty());
final SudoRetrievePolicyResponse sudoRetrievePolicyResponse =
SudoRetrievePolicyResponse.of(policyId, policy, DittoHeaders.empty());
new TestKit(system) {{
// WHEN: Condition is set on a readable feature
final var conditionalRetrieveThing1 =
getRetrieveThing(builder -> builder.condition("exists(features/grantedFeature)"));
supervisor.tell(conditionalRetrieveThing1, getRef());
expectAndAnswerSudoRetrieveThing(sudoRetrieveThingResponse);
expectAndAnswerSudoRetrievePolicy(policyId, sudoRetrievePolicyResponse);
final ThingCommand<?> expectedReadCommand = addReadSubjectHeader(conditionalRetrieveThing1);
thingPersistenceActorProbe.expectMsg(expectedReadCommand);
final RetrieveThingResponse retrieveThingResponse = RetrieveThingResponse.of(THING_ID, thing, headers());
thingPersistenceActorProbe.reply(retrieveThingResponse);
// THEN: The command is authorized and response is forwarded
final var response1 = expectMsgClass(RetrieveThingResponse.class);
Assertions.assertThat(response1.getThing().toJson().get(revokedFeaturePointer))
.describedAs("Revoked feature should be filtered out: " + response1.getThing())
.isEmpty();
// WHEN: Condition is set on an unreadable feature
final var conditionalRetrieveThing2 =
getRetrieveThing(builder -> builder.condition("exists(features/revokedFeature)"));
supervisor.tell(conditionalRetrieveThing2, getRef());
// THEN: The command is rejected
expectMsgClass(ThingConditionFailedException.class);
// WHEN: Live channel condition is set on an unreadable feature
final var conditionalRetrieveThing3 = getRetrieveThing(builder ->
builder.liveChannelCondition("exists(features/revokedFeature)").channel("live"));
supervisor.tell(conditionalRetrieveThing3, getRef());
// THEN: The command is rejected
expectMsgClass(ThingConditionFailedException.class);
}};
}
@Test
public void enforceLiveChannelConditionOnModifyCommandFails() {
final PolicyId policyId = PolicyId.of("policy:id");
final Policy policy = PoliciesModelFactory.newPolicyBuilder(policyId)
.setRevision(1L)
.forLabel("authorize-self")
.setSubject(GOOGLE, TestSetup.SUBJECT_ID)
.setGrantedPermissions(PoliciesResourceType.thingResource(JsonPointer.empty()),
Permissions.newInstance(Permission.READ, Permission.WRITE))
.build();
final JsonObject policyJsonObject = policy.toJson(FieldType.all());
final SudoRetrieveThingResponse sudoRetrieveThingResponse =
SudoRetrieveThingResponse.of(newThingWithAttributeWithPolicyId(policyId), DittoHeaders.empty());
final SudoRetrievePolicyResponse sudoRetrievePolicyResponse =
SudoRetrievePolicyResponse.of(policyId, policyJsonObject, DittoHeaders.empty());
new TestKit(system) {{
// WHEN: Live channel condition is set on an unreadable feature
final DittoHeaders dittoHeadersWithLiveChannelCondition = DittoHeaders.newBuilder(headers())
.liveChannelCondition("exists(thingId)")
.build();
final ThingCommand<?> modifyCommand = getModifyCommand(dittoHeadersWithLiveChannelCondition);
supervisor.tell(modifyCommand, getRef());
expectAndAnswerSudoRetrieveThing(sudoRetrieveThingResponse);
expectAndAnswerSudoRetrievePolicy(policyId, sudoRetrievePolicyResponse);
// THEN: The command is rejected
thingPersistenceActorProbe.expectNoMessage();
final LiveChannelConditionNotAllowedException response =
TestSetup.fishForMsgClass(this, LiveChannelConditionNotAllowedException.class);
Assertions.assertThat(WithDittoHeaders.getCorrelationId(response))
.isEqualTo(WithDittoHeaders.getCorrelationId(modifyCommand));
}};
}
@Test
public void acceptCreateByInlinePolicy() {
final PolicyId policyId = PolicyId.of(THING_ID);
final Policy policy = PoliciesModelFactory.newPolicyBuilder(policyId)
.forLabel("authorize-self")
.setSubject(GOOGLE, TestSetup.SUBJECT_ID)
.setGrantedPermissions(PoliciesResourceType.thingResource(JsonPointer.empty()),
Permissions.newInstance(Permission.WRITE))
.setGrantedPermissions(PoliciesResourceType.policyResource(JsonPointer.empty()),
Permissions.newInstance(Permission.WRITE))
.setRevision(1)
.build();
final Thing thing = newThing().build();
final SudoRetrievePolicyResponse sudoRetrievePolicyResponse =
SudoRetrievePolicyResponse.of(policyId, policy.toJson(FieldType.all()), DittoHeaders.empty());
new TestKit(system) {{
final CreateThing createThing = CreateThing.of(thing, policy.toJson(), headers());
supervisor.tell(createThing, getRef());
expectAndAnswerSudoRetrieveThing(ThingNotAccessibleException.newBuilder(THING_ID).build());
policiesShardRegionProbe.expectMsgClass(CreatePolicy.class);
policiesShardRegionProbe.reply(CreatePolicyResponse.of(policyId, policy, headers()));
final CreateThing expectedCreateThing = addReadSubjectHeader(
CreateThing.of(thing.setPolicyId(policyId), null, headers()));
thingPersistenceActorProbe.expectMsg(expectedCreateThing);
final CreateThingResponse createThingResponse = CreateThingResponse.of(thing, headers());
thingPersistenceActorProbe.reply(createThingResponse);
final CreateThingResponse expectedCreateThingResponse = expectMsgClass(CreateThingResponse.class);
assertThat(expectedCreateThingResponse.getThingCreated().orElse(null)).isEqualTo(thing);
}};
}
@Test
public void acceptCreateByImplicitPolicy() {
final Thing thing = newThing().build();
final PolicyId policyId = PolicyId.of(THING_ID);
final Policy policy = provideDefaultImplicitPolicy(policyId);
final SudoRetrievePolicyResponse sudoRetrievePolicyResponse =
SudoRetrievePolicyResponse.of(policyId, policy.toJson(FieldType.all()), DittoHeaders.empty());
new TestKit(system) {{
final CreateThing createThing = CreateThing.of(thing, null, headers());
// first Thing command triggers cache load
supervisor.tell(createThing, getRef());
expectAndAnswerSudoRetrieveThing(ThingNotAccessibleException.newBuilder(THING_ID).build());
policiesShardRegionProbe.expectMsgClass(CreatePolicy.class);
policiesShardRegionProbe.reply(CreatePolicyResponse.of(policyId, policy, headers()));
final CreateThing expectedCreateThing = addReadSubjectHeader(
CreateThing.of(thing.setPolicyId(policyId), null, headers()), TestSetup.SUBJECT);
thingPersistenceActorProbe.expectMsg(expectedCreateThing);
final CreateThingResponse createThingResponse = CreateThingResponse.of(thing, headers());
thingPersistenceActorProbe.reply(createThingResponse);
// cache should be invalidated before response is sent
expectMsg(createThingResponse);
}};
}
@Test
public void testParallelEnforcementTaskScheduling() {
final Thing thing = newThing().build();
final PolicyId policyId = PolicyId.of(THING_ID);
final Policy policy = PoliciesModelFactory.newPolicyBuilder(policyId)
.setRevision(1L)
.forLabel("authorize-self")
.setSubject(GOOGLE, TestSetup.SUBJECT_ID)
.setGrantedPermissions(PoliciesResourceType.thingResource(JsonPointer.empty()),
Permissions.newInstance(Permission.READ, Permission.WRITE))
.setGrantedPermissions(PoliciesResourceType.policyResource(JsonPointer.empty()),
Permissions.newInstance(Permission.READ, Permission.WRITE))
.build();
final CreatePolicyResponse createPolicyResponse = CreatePolicyResponse.of(policyId, policy, headers());
final ThingNotAccessibleException thingNotAccessibleException =
ThingNotAccessibleException.newBuilder(THING_ID).build();
final SudoRetrieveThingResponse sudoRetrieveThingResponse =
SudoRetrieveThingResponse.of(
JsonObject.newBuilder()
.set(Thing.JsonFields.ID, THING_ID.toString())
.set(Thing.JsonFields.POLICY_ID, policyId.toString())
.set(Thing.JsonFields.REVISION, 1L)
.build(),
headers());
final SudoRetrievePolicyResponse sudoRetrievePolicyResponse =
SudoRetrievePolicyResponse.of(policyId, policy.toJson(FieldType.all()), headers());
final CreateThing createThing = CreateThing.of(thing, null, headers());
final CreateThingResponse createThingResponse = CreateThingResponse.of(thing, headers());
final RetrieveThing retrieveThing = RetrieveThing.of(THING_ID, headers());
final RetrieveThingResponse retrieveThingResponse =
RetrieveThingResponse.of(THING_ID, JsonObject.empty(), headers());
final ModifyPolicyId modifyPolicyId = ModifyPolicyId.of(THING_ID, policyId, headers());
final ModifyPolicyIdResponse modifyPolicyIdResponse =
ModifyPolicyIdResponse.modified(THING_ID, headers());
final ModifyAttribute modifyAttribute =
ModifyAttribute.of(THING_ID, JsonPointer.of("x"), JsonValue.of(5), headers());
final ModifyAttributeResponse modifyAttributeResponse =
ModifyAttributeResponse.created(THING_ID, JsonPointer.of("x"), JsonValue.of(5), headers());
final RetrieveAttribute retrieveAttribute =
RetrieveAttribute.of(THING_ID, JsonPointer.of("x"), headers());
final RetrieveAttributeResponse retrieveAttributeResponse =
RetrieveAttributeResponse.of(THING_ID, JsonPointer.of("x"), JsonValue.of(5), headers());
new TestKit(system) {{
// GIVEN: all commands are sent in one batch
supervisor.tell(createThing, getRef());
supervisor.tell(retrieveThing, getRef());
supervisor.tell(modifyPolicyId, getRef());
supervisor.tell(modifyAttribute, getRef());
supervisor.tell(retrieveAttribute, getRef());
// THEN: expect enforcement start: CreateThing
expectAndAnswerSudoRetrieveThing(thingNotAccessibleException);
policiesShardRegionProbe.expectMsgClass(CreatePolicy.class);
// THEN: no other message should come through before enforcement of CreateThing completes
thingPersistenceActorProbe.expectNoMessage(Duration.create(150, TimeUnit.MILLISECONDS));
// WHEN: CreateThing completes
policiesShardRegionProbe.reply(createPolicyResponse);
thingPersistenceActorProbe.expectMsgClass(CreateThing.class);
thingPersistenceActorProbe.reply(createThingResponse);
// THEN: the next commands are dispatched until authorization change happens again
thingPersistenceActorProbe.expectMsgClass(RetrieveThing.class);
final ActorRef retrieveThingSender = thingPersistenceActorProbe.lastSender();
thingPersistenceActorProbe.expectMsgClass(ModifyPolicyId.class);
final ActorRef modifyPolicyIdSender = thingPersistenceActorProbe.lastSender();
// THEN: the authorization-changing command causes a cache reload
thingPersistenceActorProbe.expectMsgClass(SudoRetrieveThing.class);
// WHEN: cache reload completes
thingPersistenceActorProbe.reply(sudoRetrieveThingResponse);
expectAndAnswerSudoRetrievePolicy(policyId, sudoRetrievePolicyResponse);
modifyPolicyIdSender.tell(modifyPolicyIdResponse, ActorRef.noSender());
// THEN: the other queued commands are dispatched
thingPersistenceActorProbe.expectMsgClass(ModifyAttribute.class);
final ActorRef modifyAttributeSender = thingPersistenceActorProbe.lastSender();
thingPersistenceActorProbe.expectMsgClass(RetrieveAttribute.class);
final ActorRef retrieveAttributeSender = thingPersistenceActorProbe.lastSender();
// THEN: responses are delivered to the command sender
modifyAttributeSender.tell(modifyAttributeResponse, ActorRef.noSender());
// and THEN: order of command responses is preserved
expectMsgClass(CreateThingResponse.class);
expectMsgClass(ModifyPolicyIdResponse.class);
expectMsgClass(ModifyAttributeResponse.class);
// ThingQueryCommandResponses involve a detour. If sent together, arrival order won't be deterministic.
retrieveAttributeSender.tell(retrieveAttributeResponse, ActorRef.noSender());
expectMsgClass(RetrieveAttributeResponse.class);
retrieveThingSender.tell(retrieveThingResponse, ActorRef.noSender());
expectMsgClass(RetrieveThingResponse.class);
}};
}
@Test
public void acceptCreateByInlinePolicyWithDifferentId() {
final PolicyId policyId = PolicyId.of("policy:id");
final Policy policy = PoliciesModelFactory.newPolicyBuilder(policyId)
.forLabel("authorize-self")
.setSubject(GOOGLE, TestSetup.SUBJECT_ID)
.setGrantedPermissions(PoliciesResourceType.thingResource(JsonPointer.empty()),
Permissions.newInstance(Permission.WRITE))
.setGrantedPermissions(PoliciesResourceType.policyResource(JsonPointer.empty()),
Permissions.newInstance(Permission.WRITE))
.setRevision(1)
.build();
final Thing thing = newThing().build();
final SudoRetrievePolicyResponse sudoRetrievePolicyResponse =
SudoRetrievePolicyResponse.of(policyId, policy.toJson(FieldType.all()), DittoHeaders.empty());
new TestKit(system) {{
final CreateThing createThing = CreateThing.of(thing, policy.toJson(), headers());
supervisor.tell(createThing, getRef());
expectAndAnswerSudoRetrieveThing(ThingNotAccessibleException.newBuilder(THING_ID).build());
policiesShardRegionProbe.expectMsgClass(CreatePolicy.class);
policiesShardRegionProbe.reply(CreatePolicyResponse.of(PolicyId.of(THING_ID), policy, headers()));
final CreateThing expectedCreateThing = addReadSubjectHeader(
CreateThing.of(thing.setPolicyId(policyId), null, headers()));
thingPersistenceActorProbe.expectMsg(expectedCreateThing);
final CreateThingResponse createThingResponse = CreateThingResponse.of(thing, headers());
thingPersistenceActorProbe.reply(createThingResponse);
final CreateThingResponse expectedCreateThingResponse = expectMsgClass(CreateThingResponse.class);
assertThat(expectedCreateThingResponse.getThingCreated().orElse(null)).isEqualTo(thing);
}};
}
@Test
public void testCreateByCopyFromPolicyWithAllowPolicyLockout() {
testCreateByCopyFromPolicy(headers().toBuilder().allowPolicyLockout(true).build(), false,
CreateThingResponse.class);
}
@Test
public void testCreateByCopyFromPolicyWithPolicyLockout() {
testCreateByCopyFromPolicy(headers(), true, ThingNotCreatableException.class);
}
@Test
public void testCreateByCopyFromPolicyWithIfNoneMatch() {
// the "if-none-match" headers must be removed when retrieving the policy to copy
// if they are not removed, a PolicyPreconditionNotModifiedException would be returned
testCreateByCopyFromPolicy(headers().toBuilder()
.allowPolicyLockout(true)
.ifNoneMatch(EntityTagMatchers.fromList(Collections.singletonList(EntityTagMatcher.asterisk())))
.build(),
false, CreateThingResponse.class);
}
private void testCreateByCopyFromPolicy(final DittoHeaders dittoHeaders, final boolean lockoutExpected,
final Class<?> expectedResponseClass) {
final PolicyId policyId = PolicyId.of("policy:id");
final Policy policy = PoliciesModelFactory.newPolicyBuilder(policyId)
.forLabel("authorize-self")
.setSubject(GOOGLE, TestSetup.SUBJECT_ID)
// authorized subject has WRITE on thing:/ resource
.setGrantedPermissions(PoliciesResourceType.thingResource(JsonPointer.empty()),
Permissions.newInstance(Permission.WRITE))
.forLabel("admin")
.setSubject(GOOGLE, "admin")
// some other subject has WRITE on policy:/ resource
.setGrantedPermissions(PoliciesResourceType.policyResource(JsonPointer.empty()),
Permissions.newInstance(Permission.WRITE))
.setRevision(1)
.build();
final Thing thing = newThing().build();
final SudoRetrievePolicyResponse sudoRetrievePolicyResponse =
SudoRetrievePolicyResponse.of(policyId, policy.toJson(FieldType.all()), DittoHeaders.empty());
new TestKit(system) {{
final CreateThing createThing = CreateThing.of(thing, null, policyId.toString(), dittoHeaders);
supervisor.tell(createThing, getRef());
expectAndAnswerSudoRetrieveThing(ThingNotAccessibleException.newBuilder(THING_ID).build());
// retrieve looks up the policy to copy:
final RetrievePolicy retrievePolicy = policiesShardRegionProbe.expectMsgClass(RetrievePolicy.class);
assertThat(retrievePolicy.getDittoHeaders().getIfMatch()).isEmpty();
assertThat(retrievePolicy.getDittoHeaders().getIfNoneMatch()).isEmpty();
policiesShardRegionProbe.reply(RetrievePolicyResponse.of(policyId, policy,
retrievePolicy.getDittoHeaders()));
final PolicyId newPolicyId = PolicyId.of(THING_ID);
if (lockoutExpected) {
// this logic is done in PolicyCommandEnforcement which is in policies-service - simulate it here:
policiesShardRegionProbe.expectMsgClass(CreatePolicy.class);
policiesShardRegionProbe.reply(PolicyNotAccessibleException.newBuilder(newPolicyId)
.dittoHeaders(dittoHeaders)
.build());
} else {
// after that, a copy of the policy is created:
policiesShardRegionProbe.expectMsgClass(CreatePolicy.class);
policiesShardRegionProbe.reply(CreatePolicyResponse.of(newPolicyId, policy, headers()));
}
if (lockoutExpected) {
expectMsgClass(expectedResponseClass);
} else {
final Thing thingWithNewPolicyId = thing.setPolicyId(newPolicyId);
final CreateThing expectedCreateThing = addReadSubjectHeader(
CreateThing.of(thingWithNewPolicyId, null, dittoHeaders));
thingPersistenceActorProbe.expectMsg(expectedCreateThing);
final CreateThingResponse createThingResponse = CreateThingResponse.of(thingWithNewPolicyId, headers());
thingPersistenceActorProbe.reply(createThingResponse);
expectMsg(createThingResponse);
}
}};
}
@Test
public void rejectCreateByInlinePolicyWithInvalidId() {
final PolicyId policyId = PolicyId.of(THING_ID);
final Policy policy = PoliciesModelFactory.newPolicyBuilder(policyId)
.forLabel("authorize-self")
.setSubject(GOOGLE, TestSetup.SUBJECT_ID)
.setGrantedPermissions(PoliciesResourceType.thingResource(JsonPointer.empty()),
Permissions.newInstance(Permission.WRITE))
.setGrantedPermissions(PoliciesResourceType.policyResource(JsonPointer.empty()),
Permissions.newInstance(Permission.WRITE))
.build();
final JsonObject invalidPolicyJson = policy.toJson()
.setValue("policyId", "invalid-policy-id");
final Thing thing = newThing().build();
new TestKit(system) {{
final CreateThing createThing = CreateThing.of(thing, invalidPolicyJson, headers());
supervisor.tell(createThing, getRef());
expectAndAnswerSudoRetrieveThing(ThingNotAccessibleException.newBuilder(THING_ID).build());
policiesShardRegionProbe.expectNoMessage();
thingPersistenceActorProbe.expectNoMessage();
expectMsgClass(PolicyIdInvalidException.class);
}};
}
@Test
public void rejectCreateByInvalidPolicy() {
final PolicyId policyId = PolicyId.of(THING_ID);
final Policy policy = PoliciesModelFactory.newPolicyBuilder(policyId)
.forLabel("authorize-self")
.setSubject(GOOGLE, TestSetup.SUBJECT_ID)
.setGrantedPermissions(PoliciesResourceType.thingResource(JsonPointer.empty()),
Permissions.newInstance(Permission.WRITE))
.setGrantedPermissions(PoliciesResourceType.policyResource(JsonPointer.empty()),
Permissions.newInstance(Permission.WRITE))
.setModified(Instant.now())
.build();
final JsonObject invalidPolicyJson = policy.toJson()
.setValue("_modified", "invalid-timestamp");
final Thing thing = newThing().build();
new TestKit(system) {{
final CreateThing createThing = CreateThing.of(thing, invalidPolicyJson, headers());
supervisor.tell(createThing, getRef());
expectAndAnswerSudoRetrieveThing(ThingNotAccessibleException.newBuilder(THING_ID).build());
policiesShardRegionProbe.expectNoMessage();
thingPersistenceActorProbe.expectNoMessage();
expectMsgClass(PolicyInvalidException.class);
}};
}
@Test
public void transformModifyThingToCreateThing() {
final Thing thingInPayload = newThing().setId(THING_ID).build();
final Policy policy = provideDefaultImplicitPolicy(THING_ID);
new TestKit(system) {{
final ModifyThing modifyThing = ModifyThing.of(THING_ID, thingInPayload, null, headers());
supervisor.tell(modifyThing, getRef());
expectAndAnswerSudoRetrieveThing(ThingNotAccessibleException.newBuilder(THING_ID).build());
policiesShardRegionProbe.expectMsgClass(CreatePolicy.class);
policiesShardRegionProbe.reply(CreatePolicyResponse.of(PolicyId.of(THING_ID), policy, headers()));
thingPersistenceActorProbe.expectMsgClass(CreateThing.class);
}};
}
@Test
public void rejectModifyWithConditionAndNoReadPermissionForAttributes() {
final PolicyId policyId = PolicyId.of("policy:id");
final JsonObject thingWithPolicy = newThingWithAttributeWithPolicyId(policyId);
final JsonPointer attributePointer = JsonPointer.of("/attributes/testAttr");
final JsonObject policy = PoliciesModelFactory.newPolicyBuilder(policyId)
.setRevision(1L)
.forLabel("authorize-self")
.setSubject(GOOGLE, TestSetup.SUBJECT_ID)
.setGrantedPermissions(PoliciesResourceType.thingResource(JsonPointer.empty()),
Permissions.newInstance(Permission.READ, Permission.WRITE))
.setRevokedPermissions(PoliciesResourceType.thingResource(attributePointer),
Permissions.newInstance(Permission.READ))
.build()
.toJson(FieldType.all());
final SudoRetrieveThingResponse sudoRetrieveThingResponse =
SudoRetrieveThingResponse.of(thingWithPolicy, DittoHeaders.empty());
final SudoRetrievePolicyResponse sudoRetrievePolicyResponse =
SudoRetrievePolicyResponse.of(policyId, policy, DittoHeaders.empty());
new TestKit(system) {{
final DittoHeaders dittoHeaders = headers().toBuilder()
.condition("eq(attributes/testAttr,\"testString\")")
.build();
final ThingCommand<?> modifyCommand = getModifyCommand(dittoHeaders);
supervisor.tell(modifyCommand, getRef());
expectAndAnswerSudoRetrieveThing(sudoRetrieveThingResponse);
expectAndAnswerSudoRetrievePolicy(policyId, sudoRetrievePolicyResponse);
thingPersistenceActorProbe.expectNoMessage();
expectMsgClass(ThingConditionFailedException.class);
}};
}
@Test
public void testModifyWithInvalidCondition() {
final PolicyId policyId = PolicyId.of("policy:id");
final JsonObject thingWithPolicy = TestSetup.newThingWithPolicyId(policyId);
final JsonObject policy = PoliciesModelFactory.newPolicyBuilder(policyId)
.setRevision(1L)
.forLabel("authorize-self")
.setSubject(GOOGLE, TestSetup.SUBJECT_ID)
.setGrantedPermissions(PoliciesResourceType.thingResource(JsonPointer.empty()),
Permissions.newInstance(Permission.READ, Permission.WRITE))
.build()
.toJson(FieldType.all());
final SudoRetrieveThingResponse sudoRetrieveThingResponse =
SudoRetrieveThingResponse.of(thingWithPolicy, DittoHeaders.empty());
final SudoRetrievePolicyResponse sudoRetrievePolicyResponse =
SudoRetrievePolicyResponse.of(policyId, policy, DittoHeaders.empty());
new TestKit(system) {{
expectAndAnswerSudoRetrieveThing(sudoRetrieveThingResponse);
expectAndAnswerSudoRetrievePolicy(policyId, sudoRetrievePolicyResponse);
final DittoHeaders dittoHeaders = headers().toBuilder()
.condition("eq(attributes//testAttr,\"testString\")")
.build();
final ThingCommand<?> modifyCommand = getModifyCommand(dittoHeaders);
supervisor.tell(modifyCommand, getRef());
thingPersistenceActorProbe.expectNoMessage();
final ThingConditionInvalidException thingConditionInvalidException =
expectMsgClass(ThingConditionInvalidException.class);
assertThat(thingConditionInvalidException.getErrorCode()).isEqualTo(
ThingConditionInvalidException.ERROR_CODE);
assertThat(thingConditionInvalidException.getHttpStatus()).isEqualTo(HttpStatus.BAD_REQUEST);
}};
}
private void expectAndAnswerSudoRetrieveThing(final Object sudoRetrieveThingResponse) {
final SudoRetrieveThing sudoRetrieveThing =
thingPersistenceActorProbe.expectMsgClass(SudoRetrieveThing.class);
assertThat((CharSequence) sudoRetrieveThing.getEntityId()).isEqualTo(THING_ID);
thingPersistenceActorProbe.reply(sudoRetrieveThingResponse);
}
private void expectAndAnswerSudoRetrievePolicy(final PolicyId policyId, final Object sudoRetrievePolicyResponse) {
final SudoRetrievePolicy sudoRetrievePolicy =
policiesShardRegionProbe.expectMsgClass(SudoRetrievePolicy.class);
assertThat((CharSequence) sudoRetrievePolicy.getEntityId()).isEqualTo(policyId);
policiesShardRegionProbe.reply(sudoRetrievePolicyResponse);
}
@SuppressWarnings("unchecked")
private <C extends ThingCommand<?>> C addReadSubjectHeader(final C command, final SubjectId... subjectIds) {
return (C) command.setDittoHeaders(command.getDittoHeaders().toBuilder()
.readGrantedSubjects(Stream.of(subjectIds)
.map(AuthorizationSubject::newInstance)
.toList()
)
.build()
);
}
@SuppressWarnings("unchecked")
private <C extends ThingCommand<?>> C addReadSubjectHeader(final C command, final AuthorizationSubject subject) {
return (C) command.setDittoHeaders(command.getDittoHeaders().toBuilder()
.readGrantedSubjects(List.of(subject))
.build()
);
}
private static Policy provideDefaultImplicitPolicy(final CharSequence policyId) {
return PoliciesModelFactory.newPolicyBuilder(PolicyId.of(policyId))
.forLabel("DEFAULT")
.setSubject(Subject.newInstance(SubjectId.newInstance(TestSetup.SUBJECT.getId())))
.setGrantedPermissions(PoliciesResourceType.thingResource(JsonPointer.empty()),
Permissions.newInstance(Permission.WRITE, Permission.READ))
.setGrantedPermissions(PoliciesResourceType.policyResource(JsonPointer.empty()),
Permissions.newInstance(Permission.WRITE, Permission.READ))
.setGrantedPermissions(PoliciesResourceType.messageResource(JsonPointer.empty()),
Permissions.newInstance(Permission.WRITE, Permission.READ))
.setRevision(1)
.build();
}
private TestProbe createPubSubMediatorProbe() {
return getTestProbe(createUniqueName("pubSubMediatorProbe-"));
}
private TestProbe createThingPersistenceActorProbe() {
return getTestProbe(createUniqueName("thingPersistenceActorProbe-"));
}
private TestProbe getTestProbe(final String uniqueName) {
return new TestProbe(system, uniqueName);
}
private static String createUniqueName(final String prefix) {
return prefix + UUID.randomUUID();
}
private TestActorRef<MockThingPersistenceSupervisor> createThingPersistenceSupervisor() {
return new TestActorRef<>(system, Props.create(
MockThingPersistenceSupervisor.class,
pubSubMediatorProbe.ref(),
thingPersistenceActorProbe.ref(),
system,
ackReceiverActorProbe.ref(),
policiesShardRegionProbe.ref(),
new TestSetup.DummyLiveSignalPub(pubSubMediatorProbe.ref())
), system.guardian(), MockThingPersistenceSupervisor.ACTOR_NAME);
}
private DittoHeaders headers() {
return DittoHeaders.newBuilder()
.authorizationContext(AuthorizationContext.newInstance(DittoAuthorizationContextType.UNSPECIFIED,
TestSetup.SUBJECT,
AuthorizationSubject.newInstance(String.format("%s:%s", GOOGLE, TestSetup.SUBJECT_ID))))
.correlationId(testName.getMethodName())
.schemaVersion(JsonSchemaVersion.V_2)
.build();
}
private static ThingBuilder.FromScratch newThing() {
return ThingsModelFactory.newThingBuilder()
.setId(THING_ID)
.setRevision(1L);
}
private static JsonObject newThingWithAttributeWithPolicyId(final CharSequence policyId) {
return ThingsModelFactory.newThingBuilder()
.setId(THING_ID)
.setAttribute(JsonPointer.of("/testAttr"), JsonValue.of("testString"))
.setRevision(1L)
.setPolicyId(PolicyId.of(policyId))
.build()
.toJson(V_2, FieldType.all());
}
private ThingCommand<?> getReadCommand() {
return RetrieveThing.of(THING_ID, headers());
}
private ThingCommand<?> getModifyCommand() {
return getModifyCommand(headers());