| /* |
| * Copyright (C) 2010 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.defcontainer; |
| |
| import com.android.internal.app.IMediaContainerService; |
| import com.android.internal.content.NativeLibraryHelper; |
| import com.android.internal.content.PackageHelper; |
| |
| import android.content.Intent; |
| import android.content.pm.IPackageManager; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageInfoLite; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageParser; |
| import android.content.res.ObbInfo; |
| import android.content.res.ObbScanner; |
| import android.net.Uri; |
| import android.os.Environment; |
| import android.os.IBinder; |
| import android.os.ParcelFileDescriptor; |
| import android.os.Process; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.StatFs; |
| import android.app.IntentService; |
| import android.util.DisplayMetrics; |
| import android.util.Log; |
| import android.util.Pair; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipException; |
| import java.util.zip.ZipFile; |
| |
| import android.os.FileUtils; |
| import android.provider.Settings; |
| |
| /* |
| * This service copies a downloaded apk to a file passed in as |
| * a ParcelFileDescriptor or to a newly created container specified |
| * by parameters. The DownloadManager gives access to this process |
| * based on its uid. This process also needs the ACCESS_DOWNLOAD_MANAGER |
| * permission to access apks downloaded via the download manager. |
| */ |
| public class DefaultContainerService extends IntentService { |
| private static final String TAG = "DefContainer"; |
| private static final boolean localLOGV = true; |
| |
| private static final String LIB_DIR_NAME = "lib"; |
| |
| private IMediaContainerService.Stub mBinder = new IMediaContainerService.Stub() { |
| /* |
| * Creates a new container and copies resource there. |
| * @param paackageURI the uri of resource to be copied. Can be either |
| * a content uri or a file uri |
| * @param cid the id of the secure container that should |
| * be used for creating a secure container into which the resource |
| * will be copied. |
| * @param key Refers to key used for encrypting the secure container |
| * @param resFileName Name of the target resource file(relative to newly |
| * created secure container) |
| * @return Returns the new cache path where the resource has been copied into |
| * |
| */ |
| public String copyResourceToContainer(final Uri packageURI, |
| final String cid, |
| final String key, final String resFileName) { |
| if (packageURI == null || cid == null) { |
| return null; |
| } |
| return copyResourceInner(packageURI, cid, key, resFileName); |
| } |
| |
| /* |
| * Copy specified resource to output stream |
| * @param packageURI the uri of resource to be copied. Should be a |
| * file uri |
| * @param outStream Remote file descriptor to be used for copying |
| * @return Returns true if copy succeded or false otherwise. |
| */ |
| public boolean copyResource(final Uri packageURI, |
| ParcelFileDescriptor outStream) { |
| if (packageURI == null || outStream == null) { |
| return false; |
| } |
| ParcelFileDescriptor.AutoCloseOutputStream |
| autoOut = new ParcelFileDescriptor.AutoCloseOutputStream(outStream); |
| return copyFile(packageURI, autoOut); |
| } |
| |
| /* |
| * Determine the recommended install location for package |
| * specified by file uri location. |
| * @param fileUri the uri of resource to be copied. Should be a |
| * file uri |
| * @return Returns PackageInfoLite object containing |
| * the package info and recommended app location. |
| */ |
| public PackageInfoLite getMinimalPackageInfo(final Uri fileUri, int flags, long threshold) { |
| PackageInfoLite ret = new PackageInfoLite(); |
| if (fileUri == null) { |
| Log.i(TAG, "Invalid package uri " + fileUri); |
| ret.recommendedInstallLocation = PackageHelper.RECOMMEND_FAILED_INVALID_APK; |
| return ret; |
| } |
| String scheme = fileUri.getScheme(); |
| if (scheme != null && !scheme.equals("file")) { |
| Log.w(TAG, "Falling back to installing on internal storage only"); |
| ret.recommendedInstallLocation = PackageHelper.RECOMMEND_INSTALL_INTERNAL; |
| return ret; |
| } |
| String archiveFilePath = fileUri.getPath(); |
| DisplayMetrics metrics = new DisplayMetrics(); |
| metrics.setToDefaults(); |
| PackageParser.PackageLite pkg = PackageParser.parsePackageLite(archiveFilePath, 0); |
| if (pkg == null) { |
| Log.w(TAG, "Failed to parse package"); |
| ret.recommendedInstallLocation = PackageHelper.RECOMMEND_FAILED_INVALID_APK; |
| return ret; |
| } |
| ret.packageName = pkg.packageName; |
| ret.installLocation = pkg.installLocation; |
| ret.recommendedInstallLocation = recommendAppInstallLocation(pkg.installLocation, |
| archiveFilePath, flags, threshold); |
| return ret; |
| } |
| |
| @Override |
| public boolean checkInternalFreeStorage(Uri packageUri, long threshold) |
| throws RemoteException { |
| final File apkFile = new File(packageUri.getPath()); |
| return isUnderInternalThreshold(apkFile, threshold); |
| } |
| |
| @Override |
| public boolean checkExternalFreeStorage(Uri packageUri) throws RemoteException { |
| final File apkFile = new File(packageUri.getPath()); |
| return isUnderExternalThreshold(apkFile); |
| } |
| |
| public ObbInfo getObbInfo(String filename) { |
| try { |
| return ObbScanner.getObbInfo(filename); |
| } catch (IOException e) { |
| Log.d(TAG, "Couldn't get OBB info for " + filename); |
| return null; |
| } |
| } |
| |
| @Override |
| public long calculateDirectorySize(String path) throws RemoteException { |
| final File directory = new File(path); |
| if (directory.exists() && directory.isDirectory()) { |
| return MeasurementUtils.measureDirectory(path); |
| } else { |
| return 0L; |
| } |
| } |
| }; |
| |
| public DefaultContainerService() { |
| super("DefaultContainerService"); |
| setIntentRedelivery(true); |
| } |
| |
| @Override |
| protected void onHandleIntent(Intent intent) { |
| if (PackageManager.ACTION_CLEAN_EXTERNAL_STORAGE.equals(intent.getAction())) { |
| IPackageManager pm = IPackageManager.Stub.asInterface( |
| ServiceManager.getService("package")); |
| String pkg = null; |
| try { |
| while ((pkg=pm.nextPackageToClean(pkg)) != null) { |
| eraseFiles(Environment.getExternalStorageAppDataDirectory(pkg)); |
| eraseFiles(Environment.getExternalStorageAppMediaDirectory(pkg)); |
| eraseFiles(Environment.getExternalStorageAppObbDirectory(pkg)); |
| } |
| } catch (RemoteException e) { |
| } |
| } |
| } |
| |
| void eraseFiles(File path) { |
| if (path.isDirectory()) { |
| String[] files = path.list(); |
| if (files != null) { |
| for (String file : files) { |
| eraseFiles(new File(path, file)); |
| } |
| } |
| } |
| path.delete(); |
| } |
| |
| public IBinder onBind(Intent intent) { |
| return mBinder; |
| } |
| |
| private String copyResourceInner(Uri packageURI, String newCid, String key, String resFileName) { |
| // Make sure the sdcard is mounted. |
| String status = Environment.getExternalStorageState(); |
| if (!status.equals(Environment.MEDIA_MOUNTED)) { |
| Log.w(TAG, "Make sure sdcard is mounted."); |
| return null; |
| } |
| |
| // The .apk file |
| String codePath = packageURI.getPath(); |
| File codeFile = new File(codePath); |
| |
| // Native files we need to copy to the container. |
| List<Pair<ZipEntry, String>> nativeFiles = new ArrayList<Pair<ZipEntry, String>>(); |
| |
| // Calculate size of container needed to hold base APK. |
| final int sizeMb = calculateContainerSize(codeFile, nativeFiles); |
| |
| // Create new container |
| String newCachePath = null; |
| if ((newCachePath = PackageHelper.createSdDir(sizeMb, newCid, key, Process.myUid())) == null) { |
| Log.e(TAG, "Failed to create container " + newCid); |
| return null; |
| } |
| if (localLOGV) |
| Log.i(TAG, "Created container for " + newCid + " at path : " + newCachePath); |
| File resFile = new File(newCachePath, resFileName); |
| if (!FileUtils.copyFile(new File(codePath), resFile)) { |
| Log.e(TAG, "Failed to copy " + codePath + " to " + resFile); |
| // Clean up container |
| PackageHelper.destroySdDir(newCid); |
| return null; |
| } |
| |
| try { |
| ZipFile zipFile = new ZipFile(codeFile); |
| |
| File sharedLibraryDir = new File(newCachePath, LIB_DIR_NAME); |
| sharedLibraryDir.mkdir(); |
| |
| final int N = nativeFiles.size(); |
| for (int i = 0; i < N; i++) { |
| final Pair<ZipEntry, String> entry = nativeFiles.get(i); |
| |
| InputStream is = zipFile.getInputStream(entry.first); |
| try { |
| File destFile = new File(sharedLibraryDir, entry.second); |
| if (!FileUtils.copyToFile(is, destFile)) { |
| throw new IOException("Couldn't copy native binary " |
| + entry.first.getName() + " to " + entry.second); |
| } |
| } finally { |
| is.close(); |
| } |
| } |
| } catch (IOException e) { |
| Log.e(TAG, "Couldn't copy native file to container", e); |
| PackageHelper.destroySdDir(newCid); |
| return null; |
| } |
| |
| if (localLOGV) Log.i(TAG, "Copied " + codePath + " to " + resFile); |
| if (!PackageHelper.finalizeSdDir(newCid)) { |
| Log.e(TAG, "Failed to finalize " + newCid + " at path " + newCachePath); |
| // Clean up container |
| PackageHelper.destroySdDir(newCid); |
| } |
| if (localLOGV) Log.i(TAG, "Finalized container " + newCid); |
| if (PackageHelper.isContainerMounted(newCid)) { |
| if (localLOGV) Log.i(TAG, "Unmounting " + newCid + |
| " at path " + newCachePath); |
| // Force a gc to avoid being killed. |
| Runtime.getRuntime().gc(); |
| PackageHelper.unMountSdDir(newCid); |
| } else { |
| if (localLOGV) Log.i(TAG, "Container " + newCid + " not mounted"); |
| } |
| return newCachePath; |
| } |
| |
| public static boolean copyToFile(InputStream inputStream, FileOutputStream out) { |
| try { |
| byte[] buffer = new byte[4096]; |
| int bytesRead; |
| while ((bytesRead = inputStream.read(buffer)) >= 0) { |
| out.write(buffer, 0, bytesRead); |
| } |
| return true; |
| } catch (IOException e) { |
| Log.i(TAG, "Exception : " + e + " when copying file"); |
| return false; |
| } |
| } |
| |
| public static boolean copyToFile(File srcFile, FileOutputStream out) { |
| InputStream inputStream = null; |
| try { |
| inputStream = new FileInputStream(srcFile); |
| return copyToFile(inputStream, out); |
| } catch (IOException e) { |
| return false; |
| } finally { |
| try { if (inputStream != null) inputStream.close(); } catch (IOException e) {} |
| } |
| } |
| |
| private boolean copyFile(Uri pPackageURI, FileOutputStream outStream) { |
| String scheme = pPackageURI.getScheme(); |
| if (scheme == null || scheme.equals("file")) { |
| final File srcPackageFile = new File(pPackageURI.getPath()); |
| // We copy the source package file to a temp file and then rename it to the |
| // destination file in order to eliminate a window where the package directory |
| // scanner notices the new package file but it's not completely copied yet. |
| if (!copyToFile(srcPackageFile, outStream)) { |
| Log.e(TAG, "Couldn't copy file: " + srcPackageFile); |
| return false; |
| } |
| } else if (scheme.equals("content")) { |
| ParcelFileDescriptor fd = null; |
| try { |
| fd = getContentResolver().openFileDescriptor(pPackageURI, "r"); |
| } catch (FileNotFoundException e) { |
| Log.e(TAG, "Couldn't open file descriptor from download service. Failed with exception " + e); |
| return false; |
| } |
| if (fd == null) { |
| Log.e(TAG, "Couldn't open file descriptor from download service (null)."); |
| return false; |
| } else { |
| if (localLOGV) { |
| Log.v(TAG, "Opened file descriptor from download service."); |
| } |
| ParcelFileDescriptor.AutoCloseInputStream |
| dlStream = new ParcelFileDescriptor.AutoCloseInputStream(fd); |
| // We copy the source package file to a temp file and then rename it to the |
| // destination file in order to eliminate a window where the package directory |
| // scanner notices the new package file but it's not completely copied yet. |
| if (!copyToFile(dlStream, outStream)) { |
| Log.e(TAG, "Couldn't copy " + pPackageURI + " to temp file."); |
| return false; |
| } |
| } |
| } else { |
| Log.e(TAG, "Package URI is not 'file:' or 'content:' - " + pPackageURI); |
| return false; |
| } |
| return true; |
| } |
| |
| private static final int PREFER_INTERNAL = 1; |
| private static final int PREFER_EXTERNAL = 2; |
| |
| private int recommendAppInstallLocation(int installLocation, String archiveFilePath, int flags, |
| long threshold) { |
| int prefer; |
| boolean checkBoth = false; |
| |
| check_inner : { |
| /* |
| * Explicit install flags should override the manifest settings. |
| */ |
| if ((flags & PackageManager.INSTALL_FORWARD_LOCK) != 0) { |
| /* |
| * Forward-locked applications cannot be installed on SD card, |
| * so only allow checking internal storage. |
| */ |
| prefer = PREFER_INTERNAL; |
| break check_inner; |
| } else if ((flags & PackageManager.INSTALL_INTERNAL) != 0) { |
| prefer = PREFER_INTERNAL; |
| break check_inner; |
| } else if ((flags & PackageManager.INSTALL_EXTERNAL) != 0) { |
| prefer = PREFER_EXTERNAL; |
| break check_inner; |
| } |
| |
| /* No install flags. Check for manifest option. */ |
| if (installLocation == PackageInfo.INSTALL_LOCATION_INTERNAL_ONLY) { |
| prefer = PREFER_INTERNAL; |
| break check_inner; |
| } else if (installLocation == PackageInfo.INSTALL_LOCATION_PREFER_EXTERNAL) { |
| prefer = PREFER_EXTERNAL; |
| checkBoth = true; |
| break check_inner; |
| } else if (installLocation == PackageInfo.INSTALL_LOCATION_AUTO) { |
| // We default to preferring internal storage. |
| prefer = PREFER_INTERNAL; |
| checkBoth = true; |
| break check_inner; |
| } |
| |
| // Pick user preference |
| int installPreference = Settings.System.getInt(getApplicationContext() |
| .getContentResolver(), |
| Settings.Secure.DEFAULT_INSTALL_LOCATION, |
| PackageHelper.APP_INSTALL_AUTO); |
| if (installPreference == PackageHelper.APP_INSTALL_INTERNAL) { |
| prefer = PREFER_INTERNAL; |
| break check_inner; |
| } else if (installPreference == PackageHelper.APP_INSTALL_EXTERNAL) { |
| prefer = PREFER_EXTERNAL; |
| break check_inner; |
| } |
| |
| /* |
| * Fall back to default policy of internal-only if nothing else is |
| * specified. |
| */ |
| prefer = PREFER_INTERNAL; |
| } |
| |
| final boolean emulated = Environment.isExternalStorageEmulated(); |
| |
| final File apkFile = new File(archiveFilePath); |
| |
| boolean fitsOnInternal = false; |
| if (checkBoth || prefer == PREFER_INTERNAL) { |
| fitsOnInternal = isUnderInternalThreshold(apkFile, threshold); |
| } |
| |
| boolean fitsOnSd = false; |
| if (!emulated && (checkBoth || prefer == PREFER_EXTERNAL)) { |
| fitsOnSd = isUnderExternalThreshold(apkFile); |
| } |
| |
| if (prefer == PREFER_INTERNAL) { |
| if (fitsOnInternal) { |
| return PackageHelper.RECOMMEND_INSTALL_INTERNAL; |
| } |
| } else if (!emulated && prefer == PREFER_EXTERNAL) { |
| if (fitsOnSd) { |
| return PackageHelper.RECOMMEND_INSTALL_EXTERNAL; |
| } |
| } |
| |
| if (checkBoth) { |
| if (fitsOnInternal) { |
| return PackageHelper.RECOMMEND_INSTALL_INTERNAL; |
| } else if (!emulated && fitsOnSd) { |
| return PackageHelper.RECOMMEND_INSTALL_EXTERNAL; |
| } |
| } |
| |
| /* |
| * If they requested to be on the external media by default, return that |
| * the media was unavailable. Otherwise, indicate there was insufficient |
| * storage space available. |
| */ |
| if (!emulated && (checkBoth || prefer == PREFER_EXTERNAL) |
| && !Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) { |
| return PackageHelper.RECOMMEND_MEDIA_UNAVAILABLE; |
| } else { |
| return PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE; |
| } |
| } |
| |
| private boolean isUnderInternalThreshold(File apkFile, long threshold) { |
| final long size = apkFile.length(); |
| |
| final StatFs internalStats = new StatFs(Environment.getDataDirectory().getPath()); |
| final long availInternalSize = (long) internalStats.getAvailableBlocks() |
| * (long) internalStats.getBlockSize(); |
| |
| return (availInternalSize - size) > threshold; |
| } |
| |
| |
| private boolean isUnderExternalThreshold(File apkFile) { |
| if (Environment.isExternalStorageEmulated()) { |
| return false; |
| } |
| |
| final int sizeMb = calculateContainerSize(apkFile, null); |
| |
| final int availSdMb; |
| if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) { |
| StatFs sdStats = new StatFs(Environment.getExternalStorageDirectory().getPath()); |
| long availSdSize = (long) (sdStats.getAvailableBlocks() * sdStats.getBlockSize()); |
| availSdMb = (int) (availSdSize >> 20); |
| } else { |
| availSdMb = -1; |
| } |
| |
| return availSdMb > sizeMb; |
| } |
| |
| /** |
| * Calculate the container size for an APK. Takes into account the |
| * |
| * @param apkFile file from which to calculate size |
| * @return size in megabytes (2^20 bytes) |
| */ |
| private int calculateContainerSize(File apkFile, List<Pair<ZipEntry, String>> outFiles) { |
| // Calculate size of container needed to hold base APK. |
| long sizeBytes = apkFile.length(); |
| |
| // Check all the native files that need to be copied and add that to the |
| // container size. |
| ZipFile zipFile; |
| final List<Pair<ZipEntry, String>> nativeFiles; |
| try { |
| zipFile = new ZipFile(apkFile); |
| |
| if (outFiles != null) { |
| nativeFiles = outFiles; |
| } else { |
| nativeFiles = new ArrayList<Pair<ZipEntry, String>>(); |
| } |
| |
| NativeLibraryHelper.listPackageNativeBinariesLI(zipFile, nativeFiles); |
| |
| final int N = nativeFiles.size(); |
| for (int i = 0; i < N; i++) { |
| final Pair<ZipEntry, String> entry = nativeFiles.get(i); |
| |
| /* |
| * Note a 1MB padding is added to the claimed size, so we don't |
| * have to worry about block alignment here. |
| */ |
| sizeBytes += entry.first.getSize(); |
| } |
| } catch (ZipException e) { |
| Log.w(TAG, "Failed to extract data from package file", e); |
| } catch (IOException e) { |
| Log.w(TAG, "Failed to cache package shared libs", e); |
| } |
| |
| int sizeMb = (int) (sizeBytes >> 20); |
| if ((sizeBytes - (sizeMb * 1024 * 1024)) > 0) { |
| sizeMb++; |
| } |
| |
| /* |
| * Add buffer size because we don't have a good way to determine the |
| * real FAT size. Your FAT size varies with how many directory entries |
| * you need, how big the whole filesystem is, and other such headaches. |
| */ |
| sizeMb++; |
| |
| return sizeMb; |
| } |
| } |