diff options
Diffstat (limited to 'src/com/android/packageinstaller/wear/WearPackageUtil.java')
| -rw-r--r-- | src/com/android/packageinstaller/wear/WearPackageUtil.java | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/src/com/android/packageinstaller/wear/WearPackageUtil.java b/src/com/android/packageinstaller/wear/WearPackageUtil.java new file mode 100644 index 00000000..688d6167 --- /dev/null +++ b/src/com/android/packageinstaller/wear/WearPackageUtil.java @@ -0,0 +1,167 @@ +/* + * Copyright (C) 2015 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.packageinstaller.wear; + +import android.annotation.Nullable; +import android.content.ComponentName; +import android.content.Context; +import android.content.Intent; +import android.content.pm.PackageParser; +import android.os.ParcelFileDescriptor; +import android.system.ErrnoException; +import android.system.Os; +import android.text.TextUtils; +import android.util.Log; + +import org.tukaani.xz.LZMAInputStream; +import org.tukaani.xz.XZInputStream; + +import java.io.File; +import java.io.FileOutputStream; +import java.io.IOException; +import java.io.InputStream; +import java.util.ArrayList; + +public class WearPackageUtil { + private static final String TAG = "WearablePkgInstaller"; + + private static final String COMPRESSION_LZMA = "lzma"; + private static final String COMPRESSION_XZ = "xz"; + + private static final String SHOW_PERMS_SERVICE_PKG_NAME = "com.google.android.wearable.app"; + private static final String SHOW_PERMS_SERVICE_CLASS_NAME = + "com.google.android.clockwork.packagemanager.ShowPermsService"; + private static final String EXTRA_PACKAGE_NAME + = "com.google.android.clockwork.EXTRA_PACKAGE_NAME"; + + public static File getTemporaryFile(Context context, String packageName) { + try { + File newFileDir = new File(context.getFilesDir(), "tmp"); + newFileDir.mkdirs(); + Os.chmod(newFileDir.getAbsolutePath(), 0771); + File newFile = new File(newFileDir, packageName + ".apk"); + return newFile; + } catch (ErrnoException e) { + Log.e(TAG, "Failed to open.", e); + return null; + } + } + + public static File getIconFile(final Context context, final String packageName) { + try { + File newFileDir = new File(context.getFilesDir(), "images/icons"); + newFileDir.mkdirs(); + Os.chmod(newFileDir.getAbsolutePath(), 0771); + return new File(newFileDir, packageName + ".icon"); + } catch (ErrnoException e) { + Log.e(TAG, "Failed to open.", e); + return null; + } + } + + /** + * In order to make sure that the Wearable Asset Manager has a reasonable apk that can be used + * by the PackageManager, we will parse it before sending it to the PackageManager. + * Unfortunately, PackageParser needs a file to parse. So, we have to temporarily convert the fd + * to a File. + * + * @param context + * @param fd FileDescriptor to convert to File + * @param packageName Name of package, will define the name of the file + * @param compressionAlg Can be null. For ALT mode the APK will be compressed. We will + * decompress it here + */ + public static File getFileFromFd(Context context, ParcelFileDescriptor fd, + String packageName, @Nullable String compressionAlg) { + File newFile = getTemporaryFile(context, packageName); + if (fd == null || fd.getFileDescriptor() == null) { + return null; + } + InputStream fr = new ParcelFileDescriptor.AutoCloseInputStream(fd); + try { + if (TextUtils.equals(compressionAlg, COMPRESSION_XZ)) { + fr = new XZInputStream(fr); + } else if (TextUtils.equals(compressionAlg, COMPRESSION_LZMA)) { + fr = new LZMAInputStream(fr); + } + } catch (IOException e) { + Log.e(TAG, "Compression was set to " + compressionAlg + ", but could not decode ", e); + return null; + } + + int nRead; + byte[] data = new byte[1024]; + try { + final FileOutputStream fo = new FileOutputStream(newFile); + while ((nRead = fr.read(data, 0, data.length)) != -1) { + fo.write(data, 0, nRead); + } + fo.flush(); + fo.close(); + Os.chmod(newFile.getAbsolutePath(), 0644); + return newFile; + } catch (IOException e) { + Log.e(TAG, "Reading from Asset FD or writing to temp file failed ", e); + return null; + } catch (ErrnoException e) { + Log.e(TAG, "Could not set permissions on file ", e); + return null; + } finally { + try { + fr.close(); + } catch (IOException e) { + Log.e(TAG, "Failed to close the file from FD ", e); + } + } + } + + public static boolean hasLauncherActivity(PackageParser.Package pkg) { + if (pkg == null || pkg.activities == null) { + return false; + } + + final int activityCount = pkg.activities.size(); + for (int i = 0; i < activityCount; ++i) { + if (pkg.activities.get(i).intents != null) { + ArrayList<PackageParser.ActivityIntentInfo> intents = + pkg.activities.get(i).intents; + final int intentsCount = intents.size(); + for (int j = 0; j < intentsCount; ++j) { + final PackageParser.ActivityIntentInfo intentInfo = intents.get(j); + if (intentInfo.hasAction(Intent.ACTION_MAIN)) { + if (intentInfo.hasCategory(Intent.CATEGORY_INFO) || + intentInfo .hasCategory(Intent.CATEGORY_LAUNCHER)) { + return true; + } + } + } + } + } + return false; + } + + public static void removeFromPermStore(Context context, String wearablePackageName) { + Intent newIntent = new Intent() + .setComponent(new ComponentName( + SHOW_PERMS_SERVICE_PKG_NAME, SHOW_PERMS_SERVICE_CLASS_NAME)) + .setAction(Intent.ACTION_UNINSTALL_PACKAGE); + newIntent.putExtra(EXTRA_PACKAGE_NAME, wearablePackageName); + Log.i(TAG, "Sending removeFromPermStore to ShowPermsService " + newIntent + + " for " + wearablePackageName); + context.startService(newIntent); + } +} |