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Merged
merged 6 commits into from
Aug 29, 2023
Merged

Set the signing clock property #4341

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eb9c850
Set the signing clock property
sugmanue Aug 23, 2023
18272b9
Rename HttpSignerCommon to ClockSignerProperty
sugmanue Aug 24, 2023
8cf4b10
Rename HttpSignerCommon to SharedSignerProperty
sugmanue Aug 24, 2023
814f51e
Improve the javadoc
sugmanue Aug 24, 2023
0defcdb
Move the signing clock property into the HttpSigner interface
sugmanue Aug 25, 2023
b5078dc
Address PR comments
sugmanue Aug 25, 2023
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7 changes: 0 additions & 7 deletions core/http-auth-aws/src/main/java/software/amazon/awssdk/http/auth/aws/AwsV4HttpSigner.java
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Expand Up @@ -15,7 +15,6 @@

package software.amazon.awssdk.http.auth.aws;

import java.time.Clock;
import java.time.Duration;
import software.amazon.awssdk.annotations.SdkPublicApi;
import software.amazon.awssdk.http.auth.aws.internal.signer.DefaultAwsV4HttpSigner;
Expand Down Expand Up @@ -43,12 +42,6 @@ public interface AwsV4HttpSigner extends HttpSigner<AwsCredentialsIdentity> {
SignerProperty<String> SERVICE_SIGNING_NAME =
SignerProperty.create(String.class, "ServiceSigningName");

/**
* A {@link Clock} to be used at the time of signing. This property defaults to the time at which signing occurs.
*/
SignerProperty<Clock> SIGNING_CLOCK =
SignerProperty.create(Clock.class, "SigningClock");

/**
* A boolean to indicate whether to double url-encode the resource path when constructing the canonical request. This property
* defaults to true.
Expand Down
7 changes: 0 additions & 7 deletions core/http-auth-aws/src/main/java/software/amazon/awssdk/http/auth/aws/AwsV4aHttpSigner.java
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Expand Up @@ -15,7 +15,6 @@

package software.amazon.awssdk.http.auth.aws;

import java.time.Clock;
import java.time.Duration;
import software.amazon.awssdk.annotations.SdkPublicApi;
import software.amazon.awssdk.http.auth.spi.HttpSigner;
Expand All @@ -42,12 +41,6 @@ public interface AwsV4aHttpSigner extends HttpSigner<AwsCredentialsIdentity> {
SignerProperty<String> SERVICE_SIGNING_NAME =
SignerProperty.create(String.class, "ServiceSigningName");

/**
* A {@link Clock} to be used at the time of signing. This property defaults to the time at which signing occurs.
*/
SignerProperty<Clock> SIGNING_CLOCK =
SignerProperty.create(Clock.class, "SigningClock");

/**
* A boolean to indicate whether to double url-encode the resource path when constructing the canonical request. This property
* defaults to true.
Expand Down
2 changes: 1 addition & 1 deletion core/http-auth-aws/src/test/java/software/amazon/awssdk/http/auth/aws/TestUtils.java
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Expand Up @@ -2,7 +2,7 @@

import static software.amazon.awssdk.http.auth.aws.AwsV4HttpSigner.REGION_NAME;
import static software.amazon.awssdk.http.auth.aws.AwsV4HttpSigner.SERVICE_SIGNING_NAME;
import static software.amazon.awssdk.http.auth.aws.AwsV4HttpSigner.SIGNING_CLOCK;
import static software.amazon.awssdk.http.auth.spi.HttpSigner.SIGNING_CLOCK;

import java.io.ByteArrayInputStream;
import java.net.URI;
Expand Down
8 changes: 8 additions & 0 deletions core/http-auth-spi/src/main/java/software/amazon/awssdk/http/auth/spi/HttpSigner.java
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Expand Up @@ -15,6 +15,7 @@

package software.amazon.awssdk.http.auth.spi;

import java.time.Clock;
import java.util.concurrent.CompletableFuture;
import java.util.function.Consumer;
import software.amazon.awssdk.annotations.SdkPublicApi;
Expand All @@ -31,6 +32,13 @@
@SdkPublicApi
public interface HttpSigner<IdentityT extends Identity> {

/**
* A {@link Clock} to be used to derive the signing time. This property defaults to the system clock.
*
* <p>Note, signing time may not be relevant to some signers.
*/
SignerProperty<Clock> SIGNING_CLOCK = SignerProperty.create(Clock.class, "SigningClock");

/**
* Method that takes in inputs to sign a request with sync payload and returns a signed version of the request.
*
Expand Down
11 changes: 11 additions & 0 deletions ...ain/java/software/amazon/awssdk/core/internal/http/pipeline/stages/AsyncSigningStage.java
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Expand Up @@ -16,6 +16,7 @@
package software.amazon.awssdk.core.internal.http.pipeline.stages;

import java.nio.ByteBuffer;
import java.time.Clock;
import java.time.Duration;
import java.util.Optional;
import java.util.concurrent.CompletableFuture;
Expand Down Expand Up @@ -103,6 +104,7 @@ private <T extends Identity> CompletableFuture<SdkHttpFullRequest> doSraSign(Sdk
if (context.requestProvider() == null) {
SyncSignRequest.Builder<T> signRequestBuilder = SyncSignRequest
.builder(identity)
.putProperty(HttpSigner.SIGNING_CLOCK, signingClock())
.request(request)
.payload(request.contentStreamProvider().orElse(null));
authSchemeOption.forEachSignerProperty(signRequestBuilder::putProperty);
Expand All @@ -113,6 +115,7 @@ private <T extends Identity> CompletableFuture<SdkHttpFullRequest> doSraSign(Sdk

AsyncSignRequest.Builder<T> signRequestBuilder = AsyncSignRequest
.builder(identity)
.putProperty(HttpSigner.SIGNING_CLOCK, signingClock())
.request(request)
.payload(context.requestProvider());
authSchemeOption.forEachSignerProperty(signRequestBuilder::putProperty);
Expand Down Expand Up @@ -229,6 +232,14 @@ private boolean shouldDoSraSigning(RequestExecutionContext context) {
&& context.executionAttributes().getAttribute(SdkInternalExecutionAttribute.SELECTED_AUTH_SCHEME) != null;
}

/**
* Returns the {@link Clock} used for signing that already accounts for clock skew when detected by the retryable stage.
*/
private Clock signingClock() {
int offsetInSeconds = dependencies.timeOffset();
return Clock.offset(Clock.systemUTC(), Duration.ofSeconds(-offsetInSeconds));
}

/**
* Always use the client level timeOffset.
*/
Expand Down
10 changes: 10 additions & 0 deletions ...src/main/java/software/amazon/awssdk/core/internal/http/pipeline/stages/SigningStage.java
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Expand Up @@ -15,6 +15,7 @@

package software.amazon.awssdk.core.internal.http.pipeline.stages;

import java.time.Clock;
import java.time.Duration;
import java.util.concurrent.CompletableFuture;
import software.amazon.awssdk.annotations.SdkInternalApi;
Expand Down Expand Up @@ -95,6 +96,7 @@ private <T extends Identity> SdkHttpFullRequest doSraSign(SdkHttpFullRequest req
T identity) {
SyncSignRequest.Builder<T> signRequestBuilder = SyncSignRequest
.builder(identity)
.putProperty(HttpSigner.SIGNING_CLOCK, signingClock())
.request(request)
.payload(request.contentStreamProvider().orElse(null));
AuthSchemeOption authSchemeOption = selectedAuthScheme.authSchemeOption();
Expand Down Expand Up @@ -182,6 +184,14 @@ private boolean shouldDoSraSigning(RequestExecutionContext context) {
&& context.executionAttributes().getAttribute(SdkInternalExecutionAttribute.SELECTED_AUTH_SCHEME) != null;
}

/**
* Returns the {@link Clock} used for signing that already accounts for clock skew when detected by the retryable stage.
*/
private Clock signingClock() {
int offsetInSeconds = dependencies.timeOffset();
return Clock.offset(Clock.systemUTC(), Duration.ofSeconds(-offsetInSeconds));
}

/**
* Always use the client level timeOffset.
*/
Expand Down
70 changes: 68 additions & 2 deletions ...java/software/amazon/awssdk/core/internal/http/pipeline/stages/AsyncSigningStageTest.java
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Expand Up @@ -16,6 +16,7 @@
package software.amazon.awssdk.core.internal.http.pipeline.stages;

import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.within;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.mock;
Expand All @@ -28,6 +29,8 @@
import static software.amazon.awssdk.core.metrics.CoreMetric.SIGNING_DURATION;

import java.nio.ByteBuffer;
import java.time.Instant;
import java.time.temporal.ChronoUnit;
import java.util.concurrent.CompletableFuture;
import org.junit.Before;
import org.junit.Test;
Expand Down Expand Up @@ -67,7 +70,7 @@

@RunWith(MockitoJUnitRunner.class)
public class AsyncSigningStageTest {
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Can we add a test (sync and async both) to assert that if the selected auth scheme has a SIGNING_CLOCK it is used over the default SIGNING_CLOCK? LGTM otherwise.

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good call about that use case!


private static final int TEST_TIME_OFFSET = 17;
private static final SignerProperty<String> SIGNER_PROPERTY = SignerProperty.create(String.class, "key");

@Mock
Expand Down Expand Up @@ -134,6 +137,59 @@ public void execute_selectedAuthScheme_doesSraSign() throws Exception {
assertThat(signRequest.request()).isSameAs(request);
assertThat(signRequest.property(SIGNER_PROPERTY)).isEqualTo("value");

// Assert that the time offset set was zero
assertThat(signRequest.property(HttpSigner.SIGNING_CLOCK)).isNotNull();
assertThat(signRequest.property(HttpSigner.SIGNING_CLOCK).instant())
.isCloseTo(Instant.now(), within(10, ChronoUnit.MILLIS));

// assert that metrics are collected
verify(metricCollector).reportMetric(eq(SIGNING_DURATION), any());

verifyNoInteractions(oldSigner);
}


@Test
public void execute_selectedAuthSchemeAndTimeOffsetSet_doesSraSignAndAdjustTheSigningClock() throws Exception {
// Set up a scheme with a signer property
SelectedAuthScheme<Identity> selectedAuthScheme = new SelectedAuthScheme<>(
CompletableFuture.completedFuture(identity),
signer,
AuthSchemeOption.builder()
.schemeId("my.auth#myAuth")
.putSignerProperty(SIGNER_PROPERTY, "value")
.build());
RequestExecutionContext context = createContext(selectedAuthScheme);

// Setup the timeoffset to test that the clock is setup properly.
httpClientDependencies.updateTimeOffset(TEST_TIME_OFFSET);

SdkHttpRequest signedRequest = ValidSdkObjects.sdkHttpFullRequest().build();
when(signer.sign(Mockito.<SyncSignRequest<? extends Identity>>any()))
.thenReturn(SyncSignedRequest.builder()
.request(signedRequest)
.build());

SdkHttpFullRequest request = ValidSdkObjects.sdkHttpFullRequest().build();
SdkHttpFullRequest result = stage.execute(request, context).join();

assertThat(result).isSameAs(signedRequest);
// assert that interceptor context is updated with result
assertThat(context.executionContext().interceptorContext().httpRequest()).isSameAs(result);

// assert that the input to the signer is as expected, including that signer properties are set
verify(signer).sign(syncSignRequestCaptor.capture());
SyncSignRequest<? extends Identity> signRequest = syncSignRequestCaptor.getValue();
assertThat(signRequest.identity()).isSameAs(identity);
assertThat(signRequest.request()).isSameAs(request);
assertThat(signRequest.property(SIGNER_PROPERTY)).isEqualTo("value");

// Assert that the signing clock is setup properly
assertThat(signRequest.property(HttpSigner.SIGNING_CLOCK)).isNotNull();
assertThat(signRequest.property(HttpSigner.SIGNING_CLOCK).instant())
.isCloseTo(Instant.now().minusSeconds(17)
, within(10, ChronoUnit.MILLIS));

// assert that metrics are collected
verify(metricCollector).reportMetric(eq(SIGNING_DURATION), any());

Expand Down Expand Up @@ -177,8 +233,13 @@ public void execute_selectedAuthScheme_asyncRequestBody_doesSraSignAsync() throw
AsyncSignRequest<? extends Identity> signRequest = asyncSignRequestCaptor.getValue();
assertThat(signRequest.identity()).isSameAs(identity);
assertThat(signRequest.request()).isSameAs(request);
assertThat(signRequest.property(SIGNER_PROPERTY)).isEqualTo("value");
assertThat(signRequest.payload().get()).isSameAs(asyncPayload);
assertThat(signRequest.property(SIGNER_PROPERTY)).isEqualTo("value");

// Assert that the time offset set was zero
assertThat(signRequest.property(HttpSigner.SIGNING_CLOCK)).isNotNull();
assertThat(signRequest.property(HttpSigner.SIGNING_CLOCK).instant())
.isCloseTo(Instant.now(), within(10, ChronoUnit.MILLIS));

// assert that metrics are collected
verify(metricCollector).reportMetric(eq(SIGNING_DURATION), any());
Expand Down Expand Up @@ -225,6 +286,11 @@ public void execute_selectedNoAuthAuthScheme_doesSraSignAsync() throws Exception
assertThat(signRequest.property(SIGNER_PROPERTY)).isEqualTo("value");
assertThat(signRequest.payload().get()).isSameAs(asyncPayload);

// Assert that the time offset set was zero
assertThat(signRequest.property(HttpSigner.SIGNING_CLOCK)).isNotNull();
assertThat(signRequest.property(HttpSigner.SIGNING_CLOCK).instant())
.isCloseTo(Instant.now(), within(10, ChronoUnit.MILLIS));

// assert that metrics are collected
verify(metricCollector).reportMetric(eq(SIGNING_DURATION), any());

Expand Down
59 changes: 59 additions & 0 deletions ...test/java/software/amazon/awssdk/core/internal/http/pipeline/stages/SigningStageTest.java
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Expand Up @@ -16,6 +16,7 @@
package software.amazon.awssdk.core.internal.http.pipeline.stages;

import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.within;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.verify;
Expand All @@ -26,6 +27,8 @@
import static software.amazon.awssdk.core.interceptor.SdkInternalExecutionAttribute.SELECTED_AUTH_SCHEME;
import static software.amazon.awssdk.core.metrics.CoreMetric.SIGNING_DURATION;

import java.time.Instant;
import java.time.temporal.ChronoUnit;
import java.util.concurrent.CompletableFuture;
import org.junit.Before;
import org.junit.Test;
Expand Down Expand Up @@ -60,6 +63,7 @@
@RunWith(MockitoJUnitRunner.class)
public class SigningStageTest {

private static final int TEST_TIME_OFFSET = 17;
private static final SignerProperty<String> SIGNER_PROPERTY = SignerProperty.create(String.class, "key");

@Mock
Expand Down Expand Up @@ -122,6 +126,56 @@ public void execute_selectedAuthScheme_doesSraSign() throws Exception {
assertThat(signRequest.identity()).isSameAs(identity);
assertThat(signRequest.request()).isSameAs(request);
assertThat(signRequest.property(SIGNER_PROPERTY)).isEqualTo("value");
assertThat(signRequest.property(HttpSigner.SIGNING_CLOCK)).isNotNull();
assertThat(signRequest.property(HttpSigner.SIGNING_CLOCK).instant())
.isCloseTo(Instant.now(), within(10, ChronoUnit.MILLIS));

// assert that metrics are collected
verify(metricCollector).reportMetric(eq(SIGNING_DURATION), any());

verifyNoInteractions(oldSigner);
}

@Test
public void execute_selectedAuthSchemeAndTimeOffsetSet_doesSraSignAndAdjustTheSigningClock() throws Exception {
// Set up a scheme with a signer property
SelectedAuthScheme<Identity> selectedAuthScheme = new SelectedAuthScheme<>(
CompletableFuture.completedFuture(identity),
signer,
AuthSchemeOption.builder()
.schemeId("my.auth#myAuth")
.putSignerProperty(SIGNER_PROPERTY, "value")
.build());
RequestExecutionContext context = createContext(selectedAuthScheme);

// Setup the timeoffset to test that the clock is setup properly.
httpClientDependencies.updateTimeOffset(TEST_TIME_OFFSET);

SdkHttpRequest signedRequest = ValidSdkObjects.sdkHttpFullRequest().build();
when(signer.sign(Mockito.<SyncSignRequest<? extends Identity>>any()))
.thenReturn(SyncSignedRequest.builder()
.request(signedRequest)
.build());

SdkHttpFullRequest request = ValidSdkObjects.sdkHttpFullRequest().build();
SdkHttpFullRequest result = stage.execute(request, context);

assertThat(result).isSameAs(signedRequest);
// Assert that interceptor context is updated with result
assertThat(context.executionContext().interceptorContext().httpRequest()).isSameAs(result);

// Assert that the input to the signer is as expected, including that signer properties are set
verify(signer).sign(signRequestCaptor.capture());
SyncSignRequest<? extends Identity> signRequest = signRequestCaptor.getValue();
assertThat(signRequest.identity()).isSameAs(identity);
assertThat(signRequest.request()).isSameAs(request);
assertThat(signRequest.property(SIGNER_PROPERTY)).isEqualTo("value");

// Assert that the signing clock is setup properly
assertThat(signRequest.property(HttpSigner.SIGNING_CLOCK)).isNotNull();
assertThat(signRequest.property(HttpSigner.SIGNING_CLOCK).instant())
.isCloseTo(Instant.now().minusSeconds(17)
, within(10, ChronoUnit.MILLIS));

// assert that metrics are collected
verify(metricCollector).reportMetric(eq(SIGNING_DURATION), any());
Expand Down Expand Up @@ -160,6 +214,11 @@ public void execute_selectedNoAuthAuthScheme_doesSraSign() throws Exception {
assertThat(signRequest.request()).isSameAs(request);
assertThat(signRequest.property(SIGNER_PROPERTY)).isNull();

// Assert that the time offset set was zero
assertThat(signRequest.property(HttpSigner.SIGNING_CLOCK)).isNotNull();
assertThat(signRequest.property(HttpSigner.SIGNING_CLOCK).instant())
.isCloseTo(Instant.now(), within(10, ChronoUnit.MILLIS));

// assert that metrics are collected
verify(metricCollector).reportMetric(eq(SIGNING_DURATION), any());

Expand Down