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ExternalAccountCredentialsTest.java
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ExternalAccountCredentialsTest.java
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/*
* Copyright 2021 Google LLC
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of Google LLC nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.google.auth.oauth2;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.json.GenericJson;
import com.google.auth.TestUtils;
import com.google.auth.http.HttpTransportFactory;
import com.google.auth.oauth2.ExternalAccountCredentialsTest.TestExternalAccountCredentials.TestCredentialSource;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.net.URI;
import java.util.Arrays;
import java.util.Collection;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import javax.annotation.Nullable;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests for {@link ExternalAccountCredentials}. */
@RunWith(JUnit4.class)
public class ExternalAccountCredentialsTest {
private static final String STS_URL = "https://sts.googleapis.com";
static class MockExternalAccountCredentialsTransportFactory implements HttpTransportFactory {
MockExternalAccountCredentialsTransport transport =
new MockExternalAccountCredentialsTransport();
@Override
public HttpTransport create() {
return transport;
}
}
private MockExternalAccountCredentialsTransportFactory transportFactory;
@Before
public void setup() {
transportFactory = new MockExternalAccountCredentialsTransportFactory();
}
@Test
public void fromStream_identityPoolCredentials() throws IOException {
GenericJson json = buildJsonIdentityPoolCredential();
ExternalAccountCredentials credential =
ExternalAccountCredentials.fromStream(TestUtils.jsonToInputStream(json));
assertTrue(credential instanceof IdentityPoolCredentials);
}
@Test
public void fromStream_awsCredentials() throws IOException {
GenericJson json = buildJsonAwsCredential();
ExternalAccountCredentials credential =
ExternalAccountCredentials.fromStream(TestUtils.jsonToInputStream(json));
assertTrue(credential instanceof AwsCredentials);
}
@Test
public void fromStream_invalidStream_throws() throws IOException {
GenericJson json = buildJsonAwsCredential();
json.put("audience", new HashMap<>());
try {
ExternalAccountCredentials.fromStream(TestUtils.jsonToInputStream(json));
fail("Should fail.");
} catch (CredentialFormatException e) {
assertEquals("An invalid input stream was provided.", e.getMessage());
}
}
@Test
public void fromStream_nullTransport_throws() throws IOException {
try {
ExternalAccountCredentials.fromStream(
new ByteArrayInputStream("foo".getBytes()), /* transportFactory= */ null);
fail("NullPointerException should be thrown.");
} catch (NullPointerException e) {
// Expected.
}
}
@Test
public void fromStream_nullStream_throws() throws IOException {
try {
ExternalAccountCredentials.fromStream(
/* credentialsStream= */ null, OAuth2Utils.HTTP_TRANSPORT_FACTORY);
fail("NullPointerException should be thrown.");
} catch (NullPointerException e) {
// Expected.
}
}
@Test
public void fromStream_invalidWorkloadAudience_throws() throws IOException {
try {
GenericJson json = buildJsonIdentityPoolWorkforceCredential();
json.put("audience", "invalidAudience");
ExternalAccountCredentials credential =
ExternalAccountCredentials.fromStream(TestUtils.jsonToInputStream(json));
fail("CredentialFormatException should be thrown.");
} catch (CredentialFormatException e) {
assertEquals("An invalid input stream was provided.", e.getMessage());
}
}
@Test
public void fromJson_identityPoolCredentialsWorkload() {
ExternalAccountCredentials credential =
ExternalAccountCredentials.fromJson(
buildJsonIdentityPoolCredential(), OAuth2Utils.HTTP_TRANSPORT_FACTORY);
assertTrue(credential instanceof IdentityPoolCredentials);
assertEquals(
"//iam.googleapis.com/projects/123/locations/global/workloadIdentityPools/pool/providers/provider",
credential.getAudience());
assertEquals("subjectTokenType", credential.getSubjectTokenType());
assertEquals(STS_URL, credential.getTokenUrl());
assertEquals("tokenInfoUrl", credential.getTokenInfoUrl());
assertNotNull(credential.getCredentialSource());
}
@Test
public void fromJson_identityPoolCredentialsWorkforce() {
ExternalAccountCredentials credential =
ExternalAccountCredentials.fromJson(
buildJsonIdentityPoolWorkforceCredential(), OAuth2Utils.HTTP_TRANSPORT_FACTORY);
assertTrue(credential instanceof IdentityPoolCredentials);
assertEquals(
"//iam.googleapis.com/locations/global/workforcePools/pool/providers/provider",
credential.getAudience());
assertEquals("subjectTokenType", credential.getSubjectTokenType());
assertEquals(STS_URL, credential.getTokenUrl());
assertEquals("tokenInfoUrl", credential.getTokenInfoUrl());
assertEquals(
"userProject", ((IdentityPoolCredentials) credential).getWorkforcePoolUserProject());
assertNotNull(credential.getCredentialSource());
}
@Test
public void fromJson_awsCredentials() throws IOException {
ExternalAccountCredentials credential =
ExternalAccountCredentials.fromJson(
buildJsonAwsCredential(), OAuth2Utils.HTTP_TRANSPORT_FACTORY);
assertTrue(credential instanceof AwsCredentials);
assertEquals("audience", credential.getAudience());
assertEquals("subjectTokenType", credential.getSubjectTokenType());
assertEquals(STS_URL, credential.getTokenUrl());
assertEquals("tokenInfoUrl", credential.getTokenInfoUrl());
assertNotNull(credential.getCredentialSource());
}
@Test
public void fromJson_nullJson_throws() {
try {
ExternalAccountCredentials.fromJson(/* json= */ null, OAuth2Utils.HTTP_TRANSPORT_FACTORY);
fail("Exception should be thrown.");
} catch (NullPointerException e) {
// Expected.
}
}
@Test
public void fromJson_invalidServiceAccountImpersonationUrl_throws() {
GenericJson json = buildJsonIdentityPoolCredential();
json.put("service_account_impersonation_url", "https://iamcredentials.googleapis.com");
try {
ExternalAccountCredentials.fromJson(json, OAuth2Utils.HTTP_TRANSPORT_FACTORY);
fail("Exception should be thrown.");
} catch (IllegalArgumentException e) {
assertEquals(
"Unable to determine target principal from service account impersonation URL.",
e.getMessage());
}
}
@Test
public void fromJson_nullTransport_throws() {
try {
ExternalAccountCredentials.fromJson(
new HashMap<String, Object>(), /* transportFactory= */ null);
fail("Exception should be thrown.");
} catch (NullPointerException e) {
// Expected.
}
}
@Test
public void fromJson_invalidWorkforceAudiences_throws() {
List<String> invalidAudiences =
Arrays.asList(
"//iam.googleapis.com/locations/global/workloadIdentityPools/pool/providers/provider",
"//iam.googleapis.com/locations/global/workforcepools/pool/providers/provider",
"//iam.googleapis.com/locations/global/workforcePools/providers/provider",
"//iam.googleapis.com/locations/global/workforcePools/providers",
"//iam.googleapis.com/locations/global/workforcePools/",
"//iam.googleapis.com/locations//workforcePools/providers",
"//iam.googleapis.com/notlocations/global/workforcePools/providers",
"//iam.googleapis.com/locations/global/workforce/providers");
for (String audience : invalidAudiences) {
try {
GenericJson json = buildJsonIdentityPoolCredential();
json.put("audience", audience);
json.put("workforce_pool_user_project", "userProject");
ExternalAccountCredentials.fromJson(json, OAuth2Utils.HTTP_TRANSPORT_FACTORY);
fail("Exception should be thrown.");
} catch (IllegalArgumentException e) {
assertEquals(
"The workforce_pool_user_project parameter should only be provided for a Workforce Pool configuration.",
e.getMessage());
}
}
}
@Test
public void constructor_invalidTokenUrl() {
try {
new TestExternalAccountCredentials(
transportFactory,
"audience",
"subjectTokenType",
"tokenUrl",
new TestCredentialSource(new HashMap<String, Object>()),
STS_URL,
/* serviceAccountImpersonationUrl= */ null,
"quotaProjectId",
/* clientId= */ null,
/* clientSecret= */ null,
/* scopes= */ null);
fail("Should have failed since an invalid token URL was passed.");
} catch (IllegalArgumentException e) {
assertEquals("The provided token URL is invalid.", e.getMessage());
}
}
@Test
public void constructor_invalidServiceAccountImpersonationUrl() {
try {
new TestExternalAccountCredentials(
transportFactory,
"audience",
"subjectTokenType",
"tokenUrl",
new TestCredentialSource(new HashMap<String, Object>()),
/* tokenInfoUrl= */ null,
"serviceAccountImpersonationUrl",
"quotaProjectId",
/* clientId= */ null,
/* clientSecret= */ null,
/* scopes= */ null);
fail("Should have failed since an invalid token URL was passed.");
} catch (IllegalArgumentException e) {
assertEquals("The provided token URL is invalid.", e.getMessage());
}
}
@Test
public void exchangeExternalCredentialForAccessToken() throws IOException {
ExternalAccountCredentials credential =
ExternalAccountCredentials.fromJson(buildJsonIdentityPoolCredential(), transportFactory);
StsTokenExchangeRequest stsTokenExchangeRequest =
StsTokenExchangeRequest.newBuilder("credential", "subjectTokenType").build();
AccessToken accessToken =
credential.exchangeExternalCredentialForAccessToken(stsTokenExchangeRequest);
assertEquals(transportFactory.transport.getAccessToken(), accessToken.getTokenValue());
// Validate no internal options set.
Map<String, String> query =
TestUtils.parseQuery(transportFactory.transport.getRequest().getContentAsString());
assertNull(query.get("options"));
}
@Test
public void exchangeExternalCredentialForAccessToken_withInternalOptions() throws IOException {
ExternalAccountCredentials credential =
ExternalAccountCredentials.fromJson(buildJsonIdentityPoolCredential(), transportFactory);
GenericJson internalOptions = new GenericJson();
internalOptions.put("key", "value");
StsTokenExchangeRequest stsTokenExchangeRequest =
StsTokenExchangeRequest.newBuilder("credential", "subjectTokenType")
.setInternalOptions(internalOptions.toString())
.build();
AccessToken accessToken =
credential.exchangeExternalCredentialForAccessToken(stsTokenExchangeRequest);
assertEquals(transportFactory.transport.getAccessToken(), accessToken.getTokenValue());
// Validate internal options set.
Map<String, String> query =
TestUtils.parseQuery(transportFactory.transport.getRequest().getContentAsString());
assertNotNull(query.get("options"));
assertEquals(internalOptions.toString(), query.get("options"));
}
@Test
public void exchangeExternalCredentialForAccessToken_withServiceAccountImpersonation()
throws IOException {
transportFactory.transport.setExpireTime(TestUtils.getDefaultExpireTime());
ExternalAccountCredentials credential =
ExternalAccountCredentials.fromStream(
IdentityPoolCredentialsTest.writeIdentityPoolCredentialsStream(
transportFactory.transport.getStsUrl(),
transportFactory.transport.getMetadataUrl(),
transportFactory.transport.getServiceAccountImpersonationUrl()),
transportFactory);
StsTokenExchangeRequest stsTokenExchangeRequest =
StsTokenExchangeRequest.newBuilder("credential", "subjectTokenType").build();
AccessToken returnedToken =
credential.exchangeExternalCredentialForAccessToken(stsTokenExchangeRequest);
assertEquals(
transportFactory.transport.getServiceAccountAccessToken(), returnedToken.getTokenValue());
}
@Test
public void exchangeExternalCredentialForAccessToken_throws() throws IOException {
ExternalAccountCredentials credential =
ExternalAccountCredentials.fromJson(buildJsonIdentityPoolCredential(), transportFactory);
String errorCode = "invalidRequest";
String errorDescription = "errorDescription";
String errorUri = "errorUri";
transportFactory.transport.addResponseErrorSequence(
TestUtils.buildHttpResponseException(errorCode, errorDescription, errorUri));
StsTokenExchangeRequest stsTokenExchangeRequest =
StsTokenExchangeRequest.newBuilder("credential", "subjectTokenType").build();
try {
credential.exchangeExternalCredentialForAccessToken(stsTokenExchangeRequest);
fail("Exception should be thrown.");
} catch (OAuthException e) {
assertEquals(errorCode, e.getErrorCode());
assertEquals(errorDescription, e.getErrorDescription());
assertEquals(errorUri, e.getErrorUri());
}
}
@Test
public void getRequestMetadata_withQuotaProjectId() throws IOException {
TestExternalAccountCredentials testCredentials =
new TestExternalAccountCredentials(
transportFactory,
"audience",
"subjectTokenType",
STS_URL,
new TestCredentialSource(new HashMap<String, Object>()),
"tokenInfoUrl",
/* serviceAccountImpersonationUrl= */ null,
"quotaProjectId",
/* clientId= */ null,
/* clientSecret= */ null,
/* scopes= */ null);
Map<String, List<String>> requestMetadata =
testCredentials.getRequestMetadata(URI.create("http://googleapis.com/foo/bar"));
assertEquals("quotaProjectId", requestMetadata.get("x-goog-user-project").get(0));
}
@Test
public void validateTokenUrl_validUrls() {
List<String> validUrls =
Arrays.asList(
"https://sts.googleapis.com",
"https://us-east-1.sts.googleapis.com",
"https://US-EAST-1.sts.googleapis.com",
"https://sts.us-east-1.googleapis.com",
"https://sts.US-WEST-1.googleapis.com",
"https://us-east-1-sts.googleapis.com",
"https://US-WEST-1-sts.googleapis.com",
"https://us-west-1-sts.googleapis.com/path?query");
for (String url : validUrls) {
ExternalAccountCredentials.validateTokenUrl(url);
ExternalAccountCredentials.validateTokenUrl(url.toUpperCase(Locale.US));
}
}
@Test
public void validateTokenUrl_invalidUrls() {
List<String> invalidUrls =
Arrays.asList(
"https://iamcredentials.googleapis.com",
"sts.googleapis.com",
"https://",
"http://sts.googleapis.com",
"https://st.s.googleapis.com",
"https://us-eas\\t-1.sts.googleapis.com",
"https:/us-east-1.sts.googleapis.com",
"https://US-WE/ST-1-sts.googleapis.com",
"https://sts-us-east-1.googleapis.com",
"https://sts-US-WEST-1.googleapis.com",
"testhttps://us-east-1.sts.googleapis.com",
"https://us-east-1.sts.googleapis.comevil.com",
"https://us-east-1.us-east-1.sts.googleapis.com",
"https://us-ea.s.t.sts.googleapis.com",
"https://sts.googleapis.comevil.com",
"hhttps://us-east-1.sts.googleapis.com",
"https://us- -1.sts.googleapis.com",
"https://-sts.googleapis.com",
"https://us-east-1.sts.googleapis.com.evil.com");
for (String url : invalidUrls) {
try {
ExternalAccountCredentials.validateTokenUrl(url);
fail("Should have failed since an invalid URL was passed.");
} catch (IllegalArgumentException e) {
assertEquals("The provided token URL is invalid.", e.getMessage());
}
}
}
@Test
public void validateServiceAccountImpersonationUrls_validUrls() {
List<String> validUrls =
Arrays.asList(
"https://iamcredentials.googleapis.com",
"https://us-east-1.iamcredentials.googleapis.com",
"https://US-EAST-1.iamcredentials.googleapis.com",
"https://iamcredentials.us-east-1.googleapis.com",
"https://iamcredentials.US-WEST-1.googleapis.com",
"https://us-east-1-iamcredentials.googleapis.com",
"https://US-WEST-1-iamcredentials.googleapis.com",
"https://us-west-1-iamcredentials.googleapis.com/path?query");
for (String url : validUrls) {
ExternalAccountCredentials.validateServiceAccountImpersonationInfoUrl(url);
ExternalAccountCredentials.validateServiceAccountImpersonationInfoUrl(
url.toUpperCase(Locale.US));
}
}
@Test
public void validateServiceAccountImpersonationUrls_invalidUrls() {
List<String> invalidUrls =
Arrays.asList(
"https://sts.googleapis.com",
"iamcredentials.googleapis.com",
"https://",
"http://iamcredentials.googleapis.com",
"https://iamcre.dentials.googleapis.com",
"https://us-eas\t-1.iamcredentials.googleapis.com",
"https:/us-east-1.iamcredentials.googleapis.com",
"https://US-WE/ST-1-iamcredentials.googleapis.com",
"https://iamcredentials-us-east-1.googleapis.com",
"https://iamcredentials-US-WEST-1.googleapis.com",
"testhttps://us-east-1.iamcredentials.googleapis.com",
"https://us-east-1.iamcredentials.googleapis.comevil.com",
"https://us-east-1.us-east-1.iamcredentials.googleapis.com",
"https://us-ea.s.t.iamcredentials.googleapis.com",
"https://iamcredentials.googleapis.comevil.com",
"hhttps://us-east-1.iamcredentials.googleapis.com",
"https://us- -1.iamcredentials.googleapis.com",
"https://-iamcredentials.googleapis.com",
"https://us-east-1.iamcredentials.googleapis.com.evil.com");
for (String url : invalidUrls) {
try {
ExternalAccountCredentials.validateServiceAccountImpersonationInfoUrl(url);
fail("Should have failed since an invalid URL was passed.");
} catch (IllegalArgumentException e) {
assertEquals("The provided service account impersonation URL is invalid.", e.getMessage());
}
}
}
private GenericJson buildJsonIdentityPoolCredential() {
GenericJson json = new GenericJson();
json.put(
"audience",
"//iam.googleapis.com/projects/123/locations/global/workloadIdentityPools/pool/providers/provider");
json.put("subject_token_type", "subjectTokenType");
json.put("token_url", STS_URL);
json.put("token_info_url", "tokenInfoUrl");
Map<String, String> map = new HashMap<>();
map.put("file", "file");
json.put("credential_source", map);
return json;
}
private GenericJson buildJsonIdentityPoolWorkforceCredential() {
GenericJson json = buildJsonIdentityPoolCredential();
json.put(
"audience", "//iam.googleapis.com/locations/global/workforcePools/pool/providers/provider");
json.put("workforce_pool_user_project", "userProject");
return json;
}
private GenericJson buildJsonAwsCredential() {
GenericJson json = new GenericJson();
json.put("audience", "audience");
json.put("subject_token_type", "subjectTokenType");
json.put("token_url", STS_URL);
json.put("token_info_url", "tokenInfoUrl");
Map<String, String> map = new HashMap<>();
map.put("environment_id", "aws1");
map.put("region_url", "regionUrl");
map.put("url", "url");
map.put("regional_cred_verification_url", "regionalCredVerificationUrl");
json.put("credential_source", map);
return json;
}
static class TestExternalAccountCredentials extends ExternalAccountCredentials {
static class TestCredentialSource extends ExternalAccountCredentials.CredentialSource {
protected TestCredentialSource(Map<String, Object> credentialSourceMap) {
super(credentialSourceMap);
}
}
protected TestExternalAccountCredentials(
HttpTransportFactory transportFactory,
String audience,
String subjectTokenType,
String tokenUrl,
CredentialSource credentialSource,
@Nullable String tokenInfoUrl,
@Nullable String serviceAccountImpersonationUrl,
@Nullable String quotaProjectId,
@Nullable String clientId,
@Nullable String clientSecret,
@Nullable Collection<String> scopes) {
super(
transportFactory,
audience,
subjectTokenType,
tokenUrl,
credentialSource,
tokenInfoUrl,
serviceAccountImpersonationUrl,
quotaProjectId,
clientId,
clientSecret,
scopes);
}
protected TestExternalAccountCredentials(
HttpTransportFactory transportFactory,
String audience,
String subjectTokenType,
String tokenUrl,
CredentialSource credentialSource,
@Nullable String tokenInfoUrl,
@Nullable String serviceAccountImpersonationUrl,
@Nullable String quotaProjectId,
@Nullable String clientId,
@Nullable String clientSecret,
@Nullable Collection<String> scopes,
@Nullable EnvironmentProvider environmentProvider) {
super(
transportFactory,
audience,
subjectTokenType,
tokenUrl,
credentialSource,
tokenInfoUrl,
serviceAccountImpersonationUrl,
quotaProjectId,
clientId,
clientSecret,
scopes,
environmentProvider);
}
@Override
public AccessToken refreshAccessToken() {
return new AccessToken("accessToken", new Date());
}
@Override
public String retrieveSubjectToken() {
return "subjectToken";
}
}
}