1 /*
2  * Copyright (C) 2023 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.server.credentials;
18 
19 import static com.google.common.truth.Truth.assertThat;
20 
21 import static org.mockito.Mockito.mock;
22 import static org.mockito.Mockito.when;
23 
24 import android.credentials.CredentialDescription;
25 import android.credentials.RegisterCredentialDescriptionRequest;
26 import android.service.credentials.CredentialEntry;
27 
28 import androidx.test.filters.SmallTest;
29 import androidx.test.runner.AndroidJUnit4;
30 
31 import org.junit.Before;
32 import org.junit.Test;
33 import org.junit.runner.RunWith;
34 
35 import java.util.Collections;
36 import java.util.HashSet;
37 import java.util.List;
38 import java.util.Set;
39 import java.util.stream.Collectors;
40 
41 /**
42  * Tests for CredentialDescriptionRegistry.
43  *
44  * atest FrameworksServicesTests:com.android.server.credentials.CredentialDescriptionRegistryTest
45  */
46 @RunWith(AndroidJUnit4.class)
47 @SmallTest
48 public class CredentialDescriptionRegistryTest {
49 
50     private static final int USER_ID_1 = 1;
51     private static final int USER_ID_2 = 2;
52     private static final String CALLING_PACKAGE_NAME = "com.credman.app";
53     private static final String CALLING_PACKAGE_NAME_2 = "com.credman.app2";
54     private static final String MDOC_CREDENTIAL_TYPE = "MDOC";
55     private static final String PASSKEY_CREDENTIAL_TYPE = "PASSKEY";
56     private static final HashSet<String> FLATTENED_REGISTRY = new HashSet<>(List.of(
57             "FLATTENED_REQ", "FLATTENED_REQ123", "FLATTENED_REQa"));
58     private static final HashSet<String> FLATTENED_REGISTRY_2 =
59             new HashSet<>(List.of("FLATTENED_REQ_2"));
60     private static final HashSet<String> FLATTENED_REQUEST =
61             new HashSet<>(List.of("FLATTENED_REQ;FLATTENED_REQ123"));
62 
63     private CredentialDescriptionRegistry mCredentialDescriptionRegistry;
64     private CredentialEntry mEntry;
65     private CredentialEntry mEntry2;
66     private CredentialEntry mEntry3;
67 
68     @SuppressWarnings("GuardedBy")
69     @Before
setUp()70     public void setUp() {
71         CredentialDescriptionRegistry.clearAllSessions();
72         mEntry = mock(CredentialEntry.class);
73         mEntry2 = mock(CredentialEntry.class);
74         mEntry3 = mock(CredentialEntry.class);
75         when(mEntry.getType()).thenReturn(MDOC_CREDENTIAL_TYPE);
76         when(mEntry2.getType()).thenReturn(MDOC_CREDENTIAL_TYPE);
77         when(mEntry3.getType()).thenReturn(PASSKEY_CREDENTIAL_TYPE);
78         mCredentialDescriptionRegistry = CredentialDescriptionRegistry.forUser(USER_ID_1);
79     }
80 
81     @SuppressWarnings("GuardedBy")
82     @Test
testForUser_createsUniqueInstanceForEachUserID()83     public void testForUser_createsUniqueInstanceForEachUserID() {
84         final CredentialDescriptionRegistry secondRegistry = CredentialDescriptionRegistry
85                 .forUser(USER_ID_2);
86 
87         assertThat(mCredentialDescriptionRegistry).isNotSameInstanceAs(secondRegistry);
88     }
89 
90     @SuppressWarnings("GuardedBy")
91     @Test
testForUser_returnsSameInstanceForSameUserID()92     public void testForUser_returnsSameInstanceForSameUserID() {
93         final CredentialDescriptionRegistry secondRegistry = CredentialDescriptionRegistry
94                 .forUser(USER_ID_1);
95 
96         assertThat(mCredentialDescriptionRegistry).isSameInstanceAs(secondRegistry);
97     }
98 
99     @SuppressWarnings("GuardedBy")
100     @Test
testClearUserSession_removesExistingSessionForUserID()101     public void testClearUserSession_removesExistingSessionForUserID() {
102         CredentialDescriptionRegistry.clearUserSession(USER_ID_1);
103         final CredentialDescriptionRegistry secondRegistry = CredentialDescriptionRegistry
104                 .forUser(USER_ID_1);
105 
106         assertThat(mCredentialDescriptionRegistry).isNotSameInstanceAs(secondRegistry);
107     }
108 
109     @Test
testEvictProvider_existingProviders_succeeds()110     public void testEvictProvider_existingProviders_succeeds() {
111         final CredentialDescription credentialDescription =
112                 new CredentialDescription(MDOC_CREDENTIAL_TYPE, FLATTENED_REGISTRY,
113                         Collections.emptyList());
114         final RegisterCredentialDescriptionRequest registerCredentialDescriptionRequest =
115                 new RegisterCredentialDescriptionRequest(credentialDescription);
116         final CredentialDescription credentialDescription2 =
117                 new CredentialDescription(MDOC_CREDENTIAL_TYPE, FLATTENED_REGISTRY_2,
118                         Collections.emptyList());
119         final RegisterCredentialDescriptionRequest registerCredentialDescriptionRequest2 =
120                 new RegisterCredentialDescriptionRequest(credentialDescription2);
121 
122 
123         mCredentialDescriptionRegistry
124                 .executeRegisterRequest(registerCredentialDescriptionRequest, CALLING_PACKAGE_NAME);
125         mCredentialDescriptionRegistry
126                 .executeRegisterRequest(registerCredentialDescriptionRequest2,
127                         CALLING_PACKAGE_NAME);
128         mCredentialDescriptionRegistry.evictProviderWithPackageName(CALLING_PACKAGE_NAME);
129         Set<CredentialDescriptionRegistry.FilterResult> providers = mCredentialDescriptionRegistry
130                 .getMatchingProviders(Set.of(FLATTENED_REQUEST));
131 
132         assertThat(providers).isEmpty();
133     }
134 
135     @Test
testGetMatchingProviders_existingProviders_succeeds()136     public void testGetMatchingProviders_existingProviders_succeeds() {
137         final CredentialDescription credentialDescription =
138                 new CredentialDescription(MDOC_CREDENTIAL_TYPE, FLATTENED_REGISTRY,
139                         Collections.emptyList());
140         final RegisterCredentialDescriptionRequest registerCredentialDescriptionRequest =
141                 new RegisterCredentialDescriptionRequest(credentialDescription);
142         final CredentialDescription credentialDescription2 =
143                 new CredentialDescription(MDOC_CREDENTIAL_TYPE, FLATTENED_REGISTRY,
144                         Collections.emptyList());
145         final RegisterCredentialDescriptionRequest registerCredentialDescriptionRequest2 =
146                 new RegisterCredentialDescriptionRequest(credentialDescription2);
147 
148 
149         mCredentialDescriptionRegistry
150                 .executeRegisterRequest(registerCredentialDescriptionRequest,
151                         CALLING_PACKAGE_NAME);
152         mCredentialDescriptionRegistry
153                 .executeRegisterRequest(registerCredentialDescriptionRequest2,
154                         CALLING_PACKAGE_NAME_2);
155 
156         Set<CredentialDescriptionRegistry.FilterResult> providers = mCredentialDescriptionRegistry
157                 .getMatchingProviders(Set.of(FLATTENED_REQUEST));
158         Set<String> packageNames = providers.stream().map(
159                 filterResult -> filterResult.mPackageName).collect(Collectors.toSet());
160 
161         assertThat(providers).hasSize(2);
162         assertThat(packageNames).contains(CALLING_PACKAGE_NAME);
163         assertThat(packageNames).contains(CALLING_PACKAGE_NAME_2);
164     }
165 
166     @Test
testExecuteRegisterRequest_noProviders_filterSucceedsWithNoResults()167     public void testExecuteRegisterRequest_noProviders_filterSucceedsWithNoResults() {
168         List<CredentialDescriptionRegistry.FilterResult> results = mCredentialDescriptionRegistry
169                 .getFilteredResultForProvider(CALLING_PACKAGE_NAME,
170                         FLATTENED_REQUEST).stream().toList();
171 
172         assertThat(results).isEmpty();
173     }
174 
175     @Test
testExecuteRegisterRequest_existingProviders_filterSucceeds()176     public void testExecuteRegisterRequest_existingProviders_filterSucceeds() {
177         final CredentialDescription credentialDescription =
178                 new CredentialDescription(MDOC_CREDENTIAL_TYPE,
179                         FLATTENED_REGISTRY,
180                         List.of(mEntry, mEntry2));
181         final CredentialDescription credentialDescription2 =
182                 new CredentialDescription(PASSKEY_CREDENTIAL_TYPE,
183                         FLATTENED_REGISTRY_2,
184                         List.of(mEntry3));
185         final RegisterCredentialDescriptionRequest registerCredentialDescriptionRequest =
186                 new RegisterCredentialDescriptionRequest(Set.of(credentialDescription,
187                 credentialDescription2));
188 
189         mCredentialDescriptionRegistry
190                 .executeRegisterRequest(registerCredentialDescriptionRequest, CALLING_PACKAGE_NAME);
191 
192         List<CredentialDescriptionRegistry.FilterResult> results = mCredentialDescriptionRegistry
193                 .getFilteredResultForProvider(CALLING_PACKAGE_NAME, FLATTENED_REQUEST)
194                 .stream().toList();
195 
196         assertThat(results).hasSize(1);
197         assertThat(results.get(0).mCredentialEntries).hasSize(2);
198         assertThat(results.get(0).mCredentialEntries.get(0)).isSameInstanceAs(mEntry);
199         assertThat(results.get(0).mCredentialEntries.get(1)).isSameInstanceAs(mEntry2);
200     }
201 
202 }
203