Peter Visontay | 859206c | 2018-01-03 15:43:19 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2018 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 | package com.android.server; |
| 17 | |
| 18 | import static android.app.AppOpsManager.MODE_ALLOWED; |
| 19 | import static android.app.AppOpsManager.MODE_ERRORED; |
Peter Visontay | 7671236 | 2018-04-19 22:04:14 +0100 | [diff] [blame^] | 20 | import static android.app.AppOpsManager.OP_COARSE_LOCATION; |
Peter Visontay | 859206c | 2018-01-03 15:43:19 +0000 | [diff] [blame] | 21 | import static android.app.AppOpsManager.OP_READ_SMS; |
Peter Visontay | 7671236 | 2018-04-19 22:04:14 +0100 | [diff] [blame^] | 22 | import static android.app.AppOpsManager.OP_WIFI_SCAN; |
Peter Visontay | 859206c | 2018-01-03 15:43:19 +0000 | [diff] [blame] | 23 | import static android.app.AppOpsManager.OP_WRITE_SMS; |
| 24 | |
| 25 | import static com.google.common.truth.Truth.assertThat; |
| 26 | import static com.google.common.truth.Truth.assertWithMessage; |
| 27 | |
| 28 | import android.app.AppOpsManager.OpEntry; |
| 29 | import android.app.AppOpsManager.PackageOps; |
| 30 | import android.content.Context; |
| 31 | import android.os.Handler; |
| 32 | import android.os.HandlerThread; |
| 33 | import android.os.Process; |
| 34 | import android.support.test.InstrumentationRegistry; |
| 35 | import android.support.test.filters.SmallTest; |
| 36 | import android.support.test.runner.AndroidJUnit4; |
| 37 | |
| 38 | import org.junit.Before; |
| 39 | import org.junit.Test; |
| 40 | import org.junit.runner.RunWith; |
| 41 | |
| 42 | import java.io.File; |
| 43 | import java.util.List; |
| 44 | |
| 45 | /** |
| 46 | * Unit tests for AppOpsService. Covers functionality that is difficult to test using CTS tests |
| 47 | * or for which we can write more detailed unit tests than CTS tests (because the internal APIs are |
| 48 | * more finegrained data than the public ones). |
| 49 | */ |
| 50 | @SmallTest |
| 51 | @RunWith(AndroidJUnit4.class) |
| 52 | public class AppOpsServiceTest { |
| 53 | |
| 54 | private static final String TAG = AppOpsServiceTest.class.getSimpleName(); |
| 55 | // State will be persisted into this XML file. |
| 56 | private static final String APP_OPS_FILENAME = "appops-service-test.xml"; |
| 57 | |
| 58 | private File mAppOpsFile; |
| 59 | private Context mContext; |
| 60 | private Handler mHandler; |
| 61 | private AppOpsService mAppOpsService; |
| 62 | private String mMyPackageName; |
| 63 | private int mMyUid; |
| 64 | private long mTestStartMillis; |
| 65 | |
| 66 | @Before |
| 67 | public void setUp() { |
| 68 | mContext = InstrumentationRegistry.getTargetContext(); |
| 69 | mAppOpsFile = new File(mContext.getFilesDir(), APP_OPS_FILENAME); |
| 70 | if (mAppOpsFile.exists()) { |
| 71 | // Start with a clean state (persisted into XML). |
| 72 | mAppOpsFile.delete(); |
| 73 | } |
| 74 | |
| 75 | HandlerThread handlerThread = new HandlerThread(TAG); |
| 76 | handlerThread.start(); |
| 77 | mHandler = new Handler(handlerThread.getLooper()); |
| 78 | mMyPackageName = mContext.getOpPackageName(); |
| 79 | mMyUid = Process.myUid(); |
| 80 | |
| 81 | mAppOpsService = new AppOpsService(mAppOpsFile, mHandler); |
| 82 | mAppOpsService.mContext = mContext; |
| 83 | mTestStartMillis = System.currentTimeMillis(); |
| 84 | } |
| 85 | |
| 86 | @Test |
| 87 | public void testGetOpsForPackage_noOpsLogged() { |
| 88 | assertThat(getLoggedOps()).isNull(); |
| 89 | } |
| 90 | |
| 91 | @Test |
| 92 | public void testNoteOperationAndGetOpsForPackage() { |
| 93 | mAppOpsService.setMode(OP_READ_SMS, mMyUid, mMyPackageName, MODE_ALLOWED); |
| 94 | mAppOpsService.setMode(OP_WRITE_SMS, mMyUid, mMyPackageName, MODE_ERRORED); |
| 95 | |
| 96 | // Note an op that's allowed. |
| 97 | mAppOpsService.noteOperation(OP_READ_SMS, mMyUid, mMyPackageName); |
| 98 | List<PackageOps> loggedOps = getLoggedOps(); |
| 99 | assertContainsOp(loggedOps, OP_READ_SMS, mTestStartMillis, -1, MODE_ALLOWED); |
| 100 | |
| 101 | // Note another op that's not allowed. |
| 102 | mAppOpsService.noteOperation(OP_WRITE_SMS, mMyUid, mMyPackageName); |
| 103 | loggedOps = getLoggedOps(); |
| 104 | assertContainsOp(loggedOps, OP_READ_SMS, mTestStartMillis, -1, MODE_ALLOWED); |
| 105 | assertContainsOp(loggedOps, OP_WRITE_SMS, -1, mTestStartMillis, MODE_ERRORED); |
| 106 | } |
| 107 | |
Peter Visontay | 7671236 | 2018-04-19 22:04:14 +0100 | [diff] [blame^] | 108 | /** |
| 109 | * Tests the scenario where an operation's permission is controlled by another operation. |
| 110 | * For example the results of a WIFI_SCAN can be used to infer the location of a user, so the |
| 111 | * ACCESS_COARSE_LOCATION op is used to check whether WIFI_SCAN is allowed. |
| 112 | */ |
| 113 | @Test |
| 114 | public void testNoteOperationAndGetOpsForPackage_controlledByDifferentOp() { |
| 115 | // This op controls WIFI_SCAN |
| 116 | mAppOpsService.setMode(OP_COARSE_LOCATION, mMyUid, mMyPackageName, MODE_ALLOWED); |
| 117 | |
| 118 | assertThat(mAppOpsService.noteOperation(OP_WIFI_SCAN, mMyUid, mMyPackageName)) |
| 119 | .isEqualTo(MODE_ALLOWED); |
| 120 | |
| 121 | assertContainsOp(getLoggedOps(), OP_WIFI_SCAN, mTestStartMillis, -1, |
| 122 | MODE_ALLOWED /* default for WIFI_SCAN; this is not changed or used in this test */); |
| 123 | |
| 124 | // Now set COARSE_LOCATION to ERRORED -> this will make WIFI_SCAN disabled as well. |
| 125 | mAppOpsService.setMode(OP_COARSE_LOCATION, mMyUid, mMyPackageName, MODE_ERRORED); |
| 126 | assertThat(mAppOpsService.noteOperation(OP_WIFI_SCAN, mMyUid, mMyPackageName)) |
| 127 | .isEqualTo(MODE_ERRORED); |
| 128 | |
| 129 | assertContainsOp(getLoggedOps(), OP_WIFI_SCAN, mTestStartMillis, mTestStartMillis, |
| 130 | MODE_ALLOWED /* default for WIFI_SCAN; this is not changed or used in this test */); |
| 131 | } |
| 132 | |
Peter Visontay | 859206c | 2018-01-03 15:43:19 +0000 | [diff] [blame] | 133 | // Tests the dumping and restoring of the in-memory state to/from XML. |
| 134 | @Test |
| 135 | public void testStatePersistence() { |
| 136 | mAppOpsService.setMode(OP_READ_SMS, mMyUid, mMyPackageName, MODE_ALLOWED); |
| 137 | mAppOpsService.setMode(OP_WRITE_SMS, mMyUid, mMyPackageName, MODE_ERRORED); |
| 138 | mAppOpsService.noteOperation(OP_READ_SMS, mMyUid, mMyPackageName); |
| 139 | mAppOpsService.noteOperation(OP_WRITE_SMS, mMyUid, mMyPackageName); |
| 140 | mAppOpsService.writeState(); |
| 141 | |
| 142 | // Create a new app ops service, and initialize its state from XML. |
| 143 | mAppOpsService = new AppOpsService(mAppOpsFile, mHandler); |
| 144 | mAppOpsService.mContext = mContext; |
| 145 | mAppOpsService.readState(); |
| 146 | |
| 147 | // Query the state of the 2nd service. |
| 148 | List<PackageOps> loggedOps = getLoggedOps(); |
| 149 | assertContainsOp(loggedOps, OP_READ_SMS, mTestStartMillis, -1, MODE_ALLOWED); |
| 150 | assertContainsOp(loggedOps, OP_WRITE_SMS, -1, mTestStartMillis, MODE_ERRORED); |
| 151 | } |
| 152 | |
| 153 | // Tests that ops are persisted during shutdown. |
| 154 | @Test |
| 155 | public void testShutdown() { |
| 156 | mAppOpsService.setMode(OP_READ_SMS, mMyUid, mMyPackageName, MODE_ALLOWED); |
| 157 | mAppOpsService.noteOperation(OP_READ_SMS, mMyUid, mMyPackageName); |
| 158 | mAppOpsService.shutdown(); |
| 159 | |
| 160 | // Create a new app ops service, and initialize its state from XML. |
| 161 | mAppOpsService = new AppOpsService(mAppOpsFile, mHandler); |
| 162 | mAppOpsService.mContext = mContext; |
| 163 | mAppOpsService.readState(); |
| 164 | |
| 165 | // Query the state of the 2nd service. |
| 166 | List<PackageOps> loggedOps = getLoggedOps(); |
| 167 | assertContainsOp(loggedOps, OP_READ_SMS, mTestStartMillis, -1, MODE_ALLOWED); |
| 168 | } |
| 169 | |
| 170 | @Test |
| 171 | public void testGetOpsForPackage() { |
| 172 | mAppOpsService.setMode(OP_READ_SMS, mMyUid, mMyPackageName, MODE_ALLOWED); |
| 173 | mAppOpsService.noteOperation(OP_READ_SMS, mMyUid, mMyPackageName); |
| 174 | |
| 175 | // Query all ops |
| 176 | List<PackageOps> loggedOps = mAppOpsService.getOpsForPackage( |
| 177 | mMyUid, mMyPackageName, null /* all ops */); |
| 178 | assertContainsOp(loggedOps, OP_READ_SMS, mTestStartMillis, -1, MODE_ALLOWED); |
| 179 | |
| 180 | // Query specific ops |
| 181 | loggedOps = mAppOpsService.getOpsForPackage( |
| 182 | mMyUid, mMyPackageName, new int[]{OP_READ_SMS, OP_WRITE_SMS}); |
| 183 | assertContainsOp(loggedOps, OP_READ_SMS, mTestStartMillis, -1, MODE_ALLOWED); |
| 184 | |
| 185 | // Query unknown UID |
| 186 | loggedOps = mAppOpsService.getOpsForPackage(mMyUid + 1, mMyPackageName, null /* all ops */); |
| 187 | assertThat(loggedOps).isNull(); |
| 188 | |
| 189 | // Query unknown package name |
| 190 | loggedOps = mAppOpsService.getOpsForPackage(mMyUid, "fake.package", null /* all ops */); |
| 191 | assertThat(loggedOps).isNull(); |
| 192 | |
| 193 | // Query op code that's not been logged |
| 194 | loggedOps = mAppOpsService.getOpsForPackage(mMyUid, mMyPackageName, |
| 195 | new int[]{OP_WRITE_SMS}); |
| 196 | assertThat(loggedOps).isNull(); |
| 197 | } |
| 198 | |
| 199 | @Test |
| 200 | public void testPackageRemoved() { |
| 201 | mAppOpsService.setMode(OP_READ_SMS, mMyUid, mMyPackageName, MODE_ALLOWED); |
| 202 | mAppOpsService.noteOperation(OP_READ_SMS, mMyUid, mMyPackageName); |
| 203 | |
| 204 | List<PackageOps> loggedOps = getLoggedOps(); |
| 205 | assertContainsOp(loggedOps, OP_READ_SMS, mTestStartMillis, -1, MODE_ALLOWED); |
| 206 | |
| 207 | mAppOpsService.packageRemoved(mMyUid, mMyPackageName); |
| 208 | assertThat(getLoggedOps()).isNull(); |
| 209 | } |
| 210 | |
| 211 | @Test |
| 212 | public void testUidRemoved() { |
| 213 | mAppOpsService.setMode(OP_READ_SMS, mMyUid, mMyPackageName, MODE_ALLOWED); |
| 214 | mAppOpsService.noteOperation(OP_READ_SMS, mMyUid, mMyPackageName); |
| 215 | |
| 216 | List<PackageOps> loggedOps = getLoggedOps(); |
| 217 | assertContainsOp(loggedOps, OP_READ_SMS, mTestStartMillis, -1, MODE_ALLOWED); |
| 218 | |
| 219 | mAppOpsService.uidRemoved(mMyUid); |
| 220 | assertThat(getLoggedOps()).isNull(); |
| 221 | } |
| 222 | |
| 223 | private List<PackageOps> getLoggedOps() { |
| 224 | return mAppOpsService.getOpsForPackage(mMyUid, mMyPackageName, null /* all ops */); |
| 225 | } |
| 226 | |
| 227 | private void assertContainsOp(List<PackageOps> loggedOps, int opCode, long minMillis, |
| 228 | long minRejectMillis, int mode) { |
| 229 | |
| 230 | boolean opLogged = false; |
| 231 | for (PackageOps pkgOps : loggedOps) { |
| 232 | assertWithMessage("Unexpected UID").that(mMyUid).isEqualTo(pkgOps.getUid()); |
| 233 | assertWithMessage("Unexpected package name").that(mMyPackageName).isEqualTo( |
| 234 | pkgOps.getPackageName()); |
| 235 | |
| 236 | for (OpEntry opEntry : pkgOps.getOps()) { |
| 237 | if (opCode != opEntry.getOp()) { |
| 238 | continue; |
| 239 | } |
| 240 | opLogged = true; |
| 241 | |
| 242 | assertWithMessage("Unexpected mode").that(mode).isEqualTo(opEntry.getMode()); |
| 243 | if (minMillis > 0) { |
| 244 | assertWithMessage("Unexpected timestamp") |
| 245 | .that(opEntry.getTime()).isAtLeast(minMillis); |
| 246 | } |
| 247 | if (minRejectMillis > 0) { |
| 248 | assertWithMessage("Unexpected rejection timestamp") |
| 249 | .that(opEntry.getRejectTime()).isAtLeast(minRejectMillis); |
| 250 | } |
| 251 | } |
| 252 | } |
| 253 | assertWithMessage("Op was not logged").that(opLogged).isTrue(); |
| 254 | } |
| 255 | } |