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 17 package android.net.cts; 18 19 import static com.google.common.truth.Truth.assertThat; 20 21 import static org.junit.Assert.assertNotEquals; 22 import static org.junit.Assert.assertNotNull; 23 import static org.junit.Assume.assumeTrue; 24 25 import android.app.UiAutomation; 26 import android.content.Context; 27 import android.net.ConnectivityManager; 28 import android.os.FileUtils; 29 import android.os.ParcelFileDescriptor; 30 import android.platform.test.annotations.AppModeFull; 31 import android.util.Log; 32 33 import androidx.test.InstrumentationRegistry; 34 import androidx.test.filters.SmallTest; 35 import androidx.test.runner.AndroidJUnit4; 36 37 import com.android.compatibility.common.util.ApiLevelUtil; 38 import com.android.compatibility.common.util.SystemUtil; 39 40 import org.junit.After; 41 import org.junit.Assert; 42 import org.junit.Before; 43 import org.junit.Test; 44 import org.junit.runner.RunWith; 45 46 import java.io.FileOutputStream; 47 import java.io.IOException; 48 import java.io.InputStream; 49 import java.util.Formatter; 50 51 @SmallTest 52 @RunWith(AndroidJUnit4.class) 53 public class NetworkWatchlistTest { 54 55 private static final String TEST_WATCHLIST_XML = "assets/network_watchlist_config_for_test.xml"; 56 private static final String TEST_EMPTY_WATCHLIST_XML = 57 "assets/network_watchlist_config_empty_for_test.xml"; 58 private static final String TMP_CONFIG_PATH = 59 "/data/local/tmp/network_watchlist_config_for_test.xml"; 60 // Generated from sha256sum network_watchlist_config_for_test.xml 61 private static final String TEST_WATCHLIST_CONFIG_HASH = 62 "B5FC4636994180D54E1E912F78178AB1D8BD2BE71D90CA9F5BBC3284E4D04ED4"; 63 64 private ConnectivityManager mConnectivityManager; 65 private boolean mHasFeature; 66 67 @Before setUp()68 public void setUp() throws Exception { 69 mHasFeature = isAtLeastP(); 70 mConnectivityManager = 71 (ConnectivityManager) InstrumentationRegistry.getContext().getSystemService( 72 Context.CONNECTIVITY_SERVICE); 73 assumeTrue(mHasFeature); 74 // Set empty watchlist test config before testing 75 setWatchlistConfig(TEST_EMPTY_WATCHLIST_XML); 76 // Verify test watchlist config is not set before testing 77 byte[] result = mConnectivityManager.getNetworkWatchlistConfigHash(); 78 assertNotNull("Watchlist config does not exist", result); 79 assertNotEquals(TEST_WATCHLIST_CONFIG_HASH, byteArrayToHexString(result)); 80 } 81 82 @After tearDown()83 public void tearDown() throws Exception { 84 if (mHasFeature) { 85 // Set empty watchlist test config after testing 86 setWatchlistConfig(TEST_EMPTY_WATCHLIST_XML); 87 } 88 } 89 cleanup()90 private void cleanup() throws IOException { 91 runCommand("rm " + TMP_CONFIG_PATH); 92 } 93 isAtLeastP()94 private boolean isAtLeastP() throws Exception { 95 // TODO: replace with ApiLevelUtil.isAtLeast(Build.VERSION_CODES.P) when the P API level 96 // constant is defined. 97 return ApiLevelUtil.getCodename().compareToIgnoreCase("P") >= 0; 98 } 99 100 /** 101 * Test if ConnectivityManager.getNetworkWatchlistConfigHash() correctly 102 * returns the hash of config we set. 103 */ 104 @Test 105 @AppModeFull(reason = "Cannot access resource file in instant app mode") testGetWatchlistConfigHash()106 public void testGetWatchlistConfigHash() throws Exception { 107 // Set watchlist config file for test 108 setWatchlistConfig(TEST_WATCHLIST_XML); 109 // Test if watchlist config hash value is correct 110 byte[] result = mConnectivityManager.getNetworkWatchlistConfigHash(); 111 Assert.assertEquals(TEST_WATCHLIST_CONFIG_HASH, byteArrayToHexString(result)); 112 } 113 byteArrayToHexString(byte[] bytes)114 private static String byteArrayToHexString(byte[] bytes) { 115 Formatter formatter = new Formatter(); 116 for (byte b : bytes) { 117 formatter.format("%02X", b); 118 } 119 return formatter.toString(); 120 } 121 setWatchlistConfig(String watchlistConfigFile)122 private void setWatchlistConfig(String watchlistConfigFile) throws Exception { 123 Log.w("NetworkWatchlistTest", "Setting watchlist config " + watchlistConfigFile 124 + " in " + Thread.currentThread().getName()); 125 cleanup(); 126 saveResourceToFile(watchlistConfigFile, TMP_CONFIG_PATH); 127 final String cmdResult = runCommand( 128 "cmd network_watchlist set-test-config " + TMP_CONFIG_PATH).trim(); 129 assertThat(cmdResult).contains("Success"); 130 cleanup(); 131 } 132 saveResourceToFile(String res, String filePath)133 private void saveResourceToFile(String res, String filePath) throws IOException { 134 final UiAutomation uiAutomation = InstrumentationRegistry.getInstrumentation() 135 .getUiAutomation(); 136 // App can't access /data/local/tmp directly, so we pipe resource to file through stdin. 137 // Not all devices have symlink for /dev/stdin, so use /proc/self/fd/0 directly. 138 // /dev/stdin maps to /proc/self/fd/0. 139 final ParcelFileDescriptor[] fileDescriptors = uiAutomation.executeShellCommandRw( 140 "cp /proc/self/fd/0 " + filePath); 141 142 ParcelFileDescriptor stdin = fileDescriptors[1]; 143 ParcelFileDescriptor stdout = fileDescriptors[0]; 144 145 pipeResourceToFileDescriptor(res, stdin); 146 147 // Wait for the process to close its stdout - which should mean it has completed. 148 consumeFile(stdout); 149 } 150 consumeFile(ParcelFileDescriptor pfd)151 private void consumeFile(ParcelFileDescriptor pfd) throws IOException { 152 try (InputStream stream = new ParcelFileDescriptor.AutoCloseInputStream(pfd)) { 153 for (;;) { 154 if (stream.read() == -1) { 155 return; 156 } 157 } 158 } 159 } 160 pipeResourceToFileDescriptor(String res, ParcelFileDescriptor pfd)161 private void pipeResourceToFileDescriptor(String res, ParcelFileDescriptor pfd) 162 throws IOException { 163 try (InputStream resStream = getClass().getClassLoader().getResourceAsStream(res); 164 FileOutputStream fdStream = new ParcelFileDescriptor.AutoCloseOutputStream(pfd)) { 165 FileUtils.copy(resStream, fdStream); 166 } 167 } 168 runCommand(String command)169 private static String runCommand(String command) throws IOException { 170 return SystemUtil.runShellCommand(InstrumentationRegistry.getInstrumentation(), command); 171 } 172 } 173