| /* |
| * Copyright (C) 2009 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.internal.content; |
| |
| import static android.os.storage.VolumeInfo.ID_PRIVATE_INTERNAL; |
| |
| import android.content.Context; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageInstaller.SessionParams; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.content.pm.PackageParser.PackageLite; |
| import android.os.Environment; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.storage.IStorageManager; |
| import android.os.storage.StorageManager; |
| import android.os.storage.StorageVolume; |
| import android.os.storage.VolumeInfo; |
| import android.provider.Settings; |
| import android.util.ArraySet; |
| import android.util.Log; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| |
| import libcore.io.IoUtils; |
| |
| import java.io.File; |
| import java.io.FileDescriptor; |
| import java.io.IOException; |
| import java.util.Objects; |
| import java.util.UUID; |
| |
| /** |
| * Constants used internally between the PackageManager |
| * and media container service transports. |
| * Some utility methods to invoke StorageManagerService api. |
| */ |
| public class PackageHelper { |
| public static final int RECOMMEND_INSTALL_INTERNAL = 1; |
| public static final int RECOMMEND_INSTALL_EXTERNAL = 2; |
| public static final int RECOMMEND_INSTALL_EPHEMERAL = 3; |
| public static final int RECOMMEND_FAILED_INSUFFICIENT_STORAGE = -1; |
| public static final int RECOMMEND_FAILED_INVALID_APK = -2; |
| public static final int RECOMMEND_FAILED_INVALID_LOCATION = -3; |
| public static final int RECOMMEND_FAILED_ALREADY_EXISTS = -4; |
| public static final int RECOMMEND_MEDIA_UNAVAILABLE = -5; |
| public static final int RECOMMEND_FAILED_INVALID_URI = -6; |
| public static final int RECOMMEND_FAILED_VERSION_DOWNGRADE = -7; |
| |
| private static final String TAG = "PackageHelper"; |
| // App installation location settings values |
| public static final int APP_INSTALL_AUTO = 0; |
| public static final int APP_INSTALL_INTERNAL = 1; |
| public static final int APP_INSTALL_EXTERNAL = 2; |
| |
| private static TestableInterface sDefaultTestableInterface = null; |
| |
| public static IStorageManager getStorageManager() throws RemoteException { |
| IBinder service = ServiceManager.getService("mount"); |
| if (service != null) { |
| return IStorageManager.Stub.asInterface(service); |
| } else { |
| Log.e(TAG, "Can't get storagemanager service"); |
| throw new RemoteException("Could not contact storagemanager service"); |
| } |
| } |
| |
| /** |
| * A group of external dependencies used in |
| * {@link #resolveInstallVolume(Context, String, int, long)}. It can be backed by real values |
| * from the system or mocked ones for testing purposes. |
| */ |
| public static abstract class TestableInterface { |
| abstract public StorageManager getStorageManager(Context context); |
| abstract public boolean getForceAllowOnExternalSetting(Context context); |
| abstract public boolean getAllow3rdPartyOnInternalConfig(Context context); |
| abstract public ApplicationInfo getExistingAppInfo(Context context, String packageName); |
| abstract public File getDataDirectory(); |
| |
| public boolean fitsOnInternalStorage(Context context, SessionParams params) |
| throws IOException { |
| StorageManager storage = getStorageManager(context); |
| final UUID target = storage.getUuidForPath(getDataDirectory()); |
| return (params.sizeBytes <= storage.getAllocatableBytes(target, |
| translateAllocateFlags(params.installFlags))); |
| } |
| } |
| |
| private synchronized static TestableInterface getDefaultTestableInterface() { |
| if (sDefaultTestableInterface == null) { |
| sDefaultTestableInterface = new TestableInterface() { |
| @Override |
| public StorageManager getStorageManager(Context context) { |
| return context.getSystemService(StorageManager.class); |
| } |
| |
| @Override |
| public boolean getForceAllowOnExternalSetting(Context context) { |
| return Settings.Global.getInt(context.getContentResolver(), |
| Settings.Global.FORCE_ALLOW_ON_EXTERNAL, 0) != 0; |
| } |
| |
| @Override |
| public boolean getAllow3rdPartyOnInternalConfig(Context context) { |
| return context.getResources().getBoolean( |
| com.android.internal.R.bool.config_allow3rdPartyAppOnInternal); |
| } |
| |
| @Override |
| public ApplicationInfo getExistingAppInfo(Context context, String packageName) { |
| ApplicationInfo existingInfo = null; |
| try { |
| existingInfo = context.getPackageManager().getApplicationInfo(packageName, |
| PackageManager.MATCH_ANY_USER); |
| } catch (NameNotFoundException ignored) { |
| } |
| return existingInfo; |
| } |
| |
| @Override |
| public File getDataDirectory() { |
| return Environment.getDataDirectory(); |
| } |
| }; |
| } |
| return sDefaultTestableInterface; |
| } |
| |
| @VisibleForTesting |
| @Deprecated |
| public static String resolveInstallVolume(Context context, String packageName, |
| int installLocation, long sizeBytes, TestableInterface testInterface) |
| throws IOException { |
| final SessionParams params = new SessionParams(SessionParams.MODE_INVALID); |
| params.appPackageName = packageName; |
| params.installLocation = installLocation; |
| params.sizeBytes = sizeBytes; |
| return resolveInstallVolume(context, params, testInterface); |
| } |
| |
| /** |
| * Given a requested {@link PackageInfo#installLocation} and calculated |
| * install size, pick the actual volume to install the app. Only considers |
| * internal and private volumes, and prefers to keep an existing package on |
| * its current volume. |
| * |
| * @return the {@link VolumeInfo#fsUuid} to install onto, or {@code null} |
| * for internal storage. |
| */ |
| public static String resolveInstallVolume(Context context, SessionParams params) |
| throws IOException { |
| TestableInterface testableInterface = getDefaultTestableInterface(); |
| return resolveInstallVolume(context, params.appPackageName, params.installLocation, |
| params.sizeBytes, testableInterface); |
| } |
| |
| @VisibleForTesting |
| public static String resolveInstallVolume(Context context, SessionParams params, |
| TestableInterface testInterface) throws IOException { |
| final boolean forceAllowOnExternal = testInterface.getForceAllowOnExternalSetting(context); |
| final boolean allow3rdPartyOnInternal = |
| testInterface.getAllow3rdPartyOnInternalConfig(context); |
| // TODO: handle existing apps installed in ASEC; currently assumes |
| // they'll end up back on internal storage |
| ApplicationInfo existingInfo = testInterface.getExistingAppInfo(context, |
| params.appPackageName); |
| |
| final boolean fitsOnInternal = testInterface.fitsOnInternalStorage(context, params); |
| final StorageManager storageManager = |
| testInterface.getStorageManager(context); |
| |
| // System apps always forced to internal storage |
| if (existingInfo != null && existingInfo.isSystemApp()) { |
| if (fitsOnInternal) { |
| return StorageManager.UUID_PRIVATE_INTERNAL; |
| } else { |
| throw new IOException("Not enough space on existing volume " |
| + existingInfo.volumeUuid + " for system app " + params.appPackageName |
| + " upgrade"); |
| } |
| } |
| |
| // Now deal with non-system apps. |
| final ArraySet<String> allCandidates = new ArraySet<>(); |
| VolumeInfo bestCandidate = null; |
| long bestCandidateAvailBytes = Long.MIN_VALUE; |
| for (VolumeInfo vol : storageManager.getVolumes()) { |
| boolean isInternalStorage = ID_PRIVATE_INTERNAL.equals(vol.id); |
| if (vol.type == VolumeInfo.TYPE_PRIVATE && vol.isMountedWritable() |
| && (!isInternalStorage || allow3rdPartyOnInternal)) { |
| final UUID target = storageManager.getUuidForPath(new File(vol.path)); |
| final long availBytes = storageManager.getAllocatableBytes(target, |
| translateAllocateFlags(params.installFlags)); |
| if (availBytes >= params.sizeBytes) { |
| allCandidates.add(vol.fsUuid); |
| } |
| if (availBytes >= bestCandidateAvailBytes) { |
| bestCandidate = vol; |
| bestCandidateAvailBytes = availBytes; |
| } |
| } |
| } |
| |
| // If app expresses strong desire for internal storage, honor it |
| if (!forceAllowOnExternal |
| && params.installLocation == PackageInfo.INSTALL_LOCATION_INTERNAL_ONLY) { |
| if (existingInfo != null && !Objects.equals(existingInfo.volumeUuid, |
| StorageManager.UUID_PRIVATE_INTERNAL)) { |
| throw new IOException("Cannot automatically move " + params.appPackageName |
| + " from " + existingInfo.volumeUuid + " to internal storage"); |
| } |
| |
| if (!allow3rdPartyOnInternal) { |
| throw new IOException("Not allowed to install non-system apps on internal storage"); |
| } |
| |
| if (fitsOnInternal) { |
| return StorageManager.UUID_PRIVATE_INTERNAL; |
| } else { |
| throw new IOException("Requested internal only, but not enough space"); |
| } |
| } |
| |
| // If app already exists somewhere, we must stay on that volume |
| if (existingInfo != null) { |
| if (Objects.equals(existingInfo.volumeUuid, StorageManager.UUID_PRIVATE_INTERNAL) |
| && fitsOnInternal) { |
| return StorageManager.UUID_PRIVATE_INTERNAL; |
| } else if (allCandidates.contains(existingInfo.volumeUuid)) { |
| return existingInfo.volumeUuid; |
| } else { |
| throw new IOException("Not enough space on existing volume " |
| + existingInfo.volumeUuid + " for " + params.appPackageName + " upgrade"); |
| } |
| } |
| |
| // We're left with new installations with either preferring external or auto, so just pick |
| // volume with most space |
| if (bestCandidate != null) { |
| return bestCandidate.fsUuid; |
| } else { |
| throw new IOException("No special requests, but no room on allowed volumes. " |
| + " allow3rdPartyOnInternal? " + allow3rdPartyOnInternal); |
| } |
| } |
| |
| public static boolean fitsOnInternal(Context context, SessionParams params) throws IOException { |
| final StorageManager storage = context.getSystemService(StorageManager.class); |
| final UUID target = storage.getUuidForPath(Environment.getDataDirectory()); |
| return (params.sizeBytes <= storage.getAllocatableBytes(target, |
| translateAllocateFlags(params.installFlags))); |
| } |
| |
| public static boolean fitsOnExternal(Context context, SessionParams params) { |
| final StorageManager storage = context.getSystemService(StorageManager.class); |
| final StorageVolume primary = storage.getPrimaryVolume(); |
| return (params.sizeBytes > 0) && !primary.isEmulated() |
| && Environment.MEDIA_MOUNTED.equals(primary.getState()) |
| && params.sizeBytes <= storage.getStorageBytesUntilLow(primary.getPathFile()); |
| } |
| |
| @Deprecated |
| public static int resolveInstallLocation(Context context, String packageName, |
| int installLocation, long sizeBytes, int installFlags) { |
| final SessionParams params = new SessionParams(SessionParams.MODE_INVALID); |
| params.appPackageName = packageName; |
| params.installLocation = installLocation; |
| params.sizeBytes = sizeBytes; |
| params.installFlags = installFlags; |
| try { |
| return resolveInstallLocation(context, params); |
| } catch (IOException e) { |
| throw new IllegalStateException(e); |
| } |
| } |
| |
| /** |
| * Given a requested {@link PackageInfo#installLocation} and calculated |
| * install size, pick the actual location to install the app. |
| */ |
| public static int resolveInstallLocation(Context context, SessionParams params) |
| throws IOException { |
| ApplicationInfo existingInfo = null; |
| try { |
| existingInfo = context.getPackageManager().getApplicationInfo(params.appPackageName, |
| PackageManager.MATCH_ANY_USER); |
| } catch (NameNotFoundException ignored) { |
| } |
| |
| final int prefer; |
| final boolean checkBoth; |
| boolean ephemeral = false; |
| if ((params.installFlags & PackageManager.INSTALL_INSTANT_APP) != 0) { |
| prefer = RECOMMEND_INSTALL_INTERNAL; |
| ephemeral = true; |
| checkBoth = false; |
| } else if ((params.installFlags & PackageManager.INSTALL_INTERNAL) != 0) { |
| prefer = RECOMMEND_INSTALL_INTERNAL; |
| checkBoth = false; |
| } else if ((params.installFlags & PackageManager.INSTALL_EXTERNAL) != 0) { |
| prefer = RECOMMEND_INSTALL_EXTERNAL; |
| checkBoth = false; |
| } else if (params.installLocation == PackageInfo.INSTALL_LOCATION_INTERNAL_ONLY) { |
| prefer = RECOMMEND_INSTALL_INTERNAL; |
| checkBoth = false; |
| } else if (params.installLocation == PackageInfo.INSTALL_LOCATION_PREFER_EXTERNAL) { |
| prefer = RECOMMEND_INSTALL_EXTERNAL; |
| checkBoth = true; |
| } else if (params.installLocation == PackageInfo.INSTALL_LOCATION_AUTO) { |
| // When app is already installed, prefer same medium |
| if (existingInfo != null) { |
| // TODO: distinguish if this is external ASEC |
| if ((existingInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0) { |
| prefer = RECOMMEND_INSTALL_EXTERNAL; |
| } else { |
| prefer = RECOMMEND_INSTALL_INTERNAL; |
| } |
| } else { |
| prefer = RECOMMEND_INSTALL_INTERNAL; |
| } |
| checkBoth = true; |
| } else { |
| prefer = RECOMMEND_INSTALL_INTERNAL; |
| checkBoth = false; |
| } |
| |
| boolean fitsOnInternal = false; |
| if (checkBoth || prefer == RECOMMEND_INSTALL_INTERNAL) { |
| fitsOnInternal = fitsOnInternal(context, params); |
| } |
| |
| boolean fitsOnExternal = false; |
| if (checkBoth || prefer == RECOMMEND_INSTALL_EXTERNAL) { |
| fitsOnExternal = fitsOnExternal(context, params); |
| } |
| |
| if (prefer == RECOMMEND_INSTALL_INTERNAL) { |
| // The ephemeral case will either fit and return EPHEMERAL, or will not fit |
| // and will fall through to return INSUFFICIENT_STORAGE |
| if (fitsOnInternal) { |
| return (ephemeral) |
| ? PackageHelper.RECOMMEND_INSTALL_EPHEMERAL |
| : PackageHelper.RECOMMEND_INSTALL_INTERNAL; |
| } |
| } else if (prefer == RECOMMEND_INSTALL_EXTERNAL) { |
| if (fitsOnExternal) { |
| return PackageHelper.RECOMMEND_INSTALL_EXTERNAL; |
| } |
| } |
| |
| if (checkBoth) { |
| if (fitsOnInternal) { |
| return PackageHelper.RECOMMEND_INSTALL_INTERNAL; |
| } else if (fitsOnExternal) { |
| return PackageHelper.RECOMMEND_INSTALL_EXTERNAL; |
| } |
| } |
| |
| return PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE; |
| } |
| |
| @Deprecated |
| public static long calculateInstalledSize(PackageLite pkg, boolean isForwardLocked, |
| String abiOverride) throws IOException { |
| return calculateInstalledSize(pkg, abiOverride); |
| } |
| |
| public static long calculateInstalledSize(PackageLite pkg, String abiOverride) |
| throws IOException { |
| return calculateInstalledSize(pkg, abiOverride, null); |
| } |
| |
| public static long calculateInstalledSize(PackageLite pkg, String abiOverride, |
| FileDescriptor fd) throws IOException { |
| NativeLibraryHelper.Handle handle = null; |
| try { |
| handle = fd != null ? NativeLibraryHelper.Handle.createFd(pkg, fd) |
| : NativeLibraryHelper.Handle.create(pkg); |
| return calculateInstalledSize(pkg, handle, abiOverride); |
| } finally { |
| IoUtils.closeQuietly(handle); |
| } |
| } |
| |
| @Deprecated |
| public static long calculateInstalledSize(PackageLite pkg, boolean isForwardLocked, |
| NativeLibraryHelper.Handle handle, String abiOverride) throws IOException { |
| return calculateInstalledSize(pkg, handle, abiOverride); |
| } |
| |
| public static long calculateInstalledSize(PackageLite pkg, NativeLibraryHelper.Handle handle, |
| String abiOverride) throws IOException { |
| long sizeBytes = 0; |
| |
| // Include raw APKs, and possibly unpacked resources |
| for (String codePath : pkg.getAllCodePaths()) { |
| final File codeFile = new File(codePath); |
| sizeBytes += codeFile.length(); |
| } |
| |
| // Include all relevant native code |
| sizeBytes += NativeLibraryHelper.sumNativeBinariesWithOverride(handle, abiOverride); |
| |
| return sizeBytes; |
| } |
| |
| public static String replaceEnd(String str, String before, String after) { |
| if (!str.endsWith(before)) { |
| throw new IllegalArgumentException( |
| "Expected " + str + " to end with " + before); |
| } |
| return str.substring(0, str.length() - before.length()) + after; |
| } |
| |
| public static int translateAllocateFlags(int installFlags) { |
| if ((installFlags & PackageManager.INSTALL_ALLOCATE_AGGRESSIVE) != 0) { |
| return StorageManager.FLAG_ALLOCATE_AGGRESSIVE; |
| } else { |
| return 0; |
| } |
| } |
| } |
