| /* |
| * Copyright 2014, 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.managedprovisioning.task; |
| |
| import android.app.DownloadManager; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.pm.IPackageInstallObserver; |
| import android.content.pm.ActivityInfo; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.net.Uri; |
| import android.provider.Settings.Global; |
| import android.text.TextUtils; |
| import android.Manifest.permission; |
| |
| import com.android.managedprovisioning.ProvisionLogger; |
| import com.android.managedprovisioning.model.ProvisioningParams; |
| |
| import java.io.File; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| /** |
| * Installs all packages that were added. Can install a downloaded apk, or install an existing |
| * package which is already installed for a different user. |
| * <p> |
| * Before installing from a downloaded file, each file is checked to ensure it contains the correct |
| * package and admin receiver. |
| * </p> |
| */ |
| public class InstallPackageTask { |
| public static final int ERROR_PACKAGE_INVALID = 0; |
| public static final int ERROR_INSTALLATION_FAILED = 1; |
| public static final int ERROR_PACKAGE_NAME_INVALID = 2; |
| |
| private final Context mContext; |
| private final Callback mCallback; |
| |
| private PackageManager mPm; |
| private int mPackageVerifierEnable; |
| private Set<InstallInfo> mPackagesToInstall; |
| |
| /** |
| * Create an InstallPackageTask. When run, this will attempt to install the device admin |
| * packages if it is non-null. |
| * |
| * {@see #run(String, String)} for more detail on package installation. |
| */ |
| public InstallPackageTask (Context context, Callback callback) { |
| mCallback = callback; |
| mContext = context; |
| mPackagesToInstall = new HashSet<InstallInfo>(); |
| mPm = mContext.getPackageManager(); |
| } |
| |
| /** |
| * Should be called before {@link #run}. |
| */ |
| public void addInstallIfNecessary(String packageName, String packageLocation) { |
| if (!TextUtils.isEmpty(packageName)) { |
| mPackagesToInstall.add(new InstallInfo(packageName, packageLocation)); |
| } |
| } |
| |
| /** |
| * Install all packages given by {@link #addPackageToInstall}. Each package will be installed |
| * from the given location if one is provided. If a null or empty location is provided, and the |
| * package is installed for a different user, it will be enabled for the calling user. If the |
| * package location is not provided and the package is not installed for any other users, this |
| * task will produce an error. |
| * |
| * Errors will be indicated if a downloaded package is invalid, or installation fails. |
| */ |
| public void run() { |
| if (mPackagesToInstall.size() == 0) { |
| ProvisionLogger.loge("No downloaded packages to install"); |
| mCallback.onSuccess(); |
| return; |
| } |
| ProvisionLogger.logi("Installing package(s)"); |
| |
| for (InstallInfo info : mPackagesToInstall) { |
| if (TextUtils.isEmpty(info.location)) { |
| installExistingPackage(info); |
| |
| } else if (packageContentIsCorrect(info.packageName, info.location)) { |
| // Temporarily turn off package verification. |
| mPackageVerifierEnable = Global.getInt(mContext.getContentResolver(), |
| Global.PACKAGE_VERIFIER_ENABLE, 1); |
| Global.putInt(mContext.getContentResolver(), Global.PACKAGE_VERIFIER_ENABLE, 0); |
| |
| // Allow for replacing an existing package. |
| // Needed in case this task is performed multiple times. |
| mPm.installPackage(Uri.parse("file://" + info.location), |
| new PackageInstallObserver(info), |
| /* flags */ PackageManager.INSTALL_REPLACE_EXISTING, |
| mContext.getPackageName()); |
| } else { |
| // Error should have been reported in packageContentIsCorrect(). |
| return; |
| } |
| } |
| } |
| |
| private boolean packageContentIsCorrect(String packageName, String packageLocation) { |
| PackageInfo pi = mPm.getPackageArchiveInfo(packageLocation, PackageManager.GET_RECEIVERS); |
| if (pi == null) { |
| ProvisionLogger.loge("Package could not be parsed successfully."); |
| mCallback.onError(ERROR_PACKAGE_INVALID); |
| return false; |
| } |
| if (!pi.packageName.equals(packageName)) { |
| ProvisionLogger.loge("Package name in apk (" + pi.packageName |
| + ") does not match package name specified by programmer (" |
| + packageName + ")."); |
| mCallback.onError(ERROR_PACKAGE_INVALID); |
| return false; |
| } |
| if (pi.receivers != null) { |
| for (ActivityInfo ai : pi.receivers) { |
| if (!TextUtils.isEmpty(ai.permission) && |
| ai.permission.equals(android.Manifest.permission.BIND_DEVICE_ADMIN)) { |
| return true; |
| } |
| } |
| } |
| ProvisionLogger.loge("Installed package has no admin receiver."); |
| mCallback.onError(ERROR_PACKAGE_INVALID); |
| return false; |
| } |
| |
| private class PackageInstallObserver extends IPackageInstallObserver.Stub { |
| private final InstallInfo mInstallInfo; |
| |
| public PackageInstallObserver(InstallInfo installInfo) { |
| mInstallInfo = installInfo; |
| } |
| |
| @Override |
| public void packageInstalled(String packageName, int returnCode) { |
| if (packageName != null && !packageName.equals(mInstallInfo.packageName)) { |
| ProvisionLogger.loge("Package doesn't have expected package name."); |
| mCallback.onError(ERROR_PACKAGE_INVALID); |
| return; |
| } |
| if (returnCode == PackageManager.INSTALL_SUCCEEDED) { |
| mInstallInfo.doneInstalling = true; |
| ProvisionLogger.logd( |
| "Package " + mInstallInfo.packageName + " is succesfully installed."); |
| checkSuccess(); |
| } else if (returnCode == PackageManager.INSTALL_FAILED_VERSION_DOWNGRADE) { |
| mInstallInfo.doneInstalling = true; |
| ProvisionLogger.logd("Current version of " + mInstallInfo.packageName |
| + " higher than the version to be installed. It was not reinstalled."); |
| checkSuccess(); |
| } else { |
| ProvisionLogger.logd( |
| "Installing package " + mInstallInfo.packageName + " failed."); |
| ProvisionLogger.logd( |
| "Errorcode returned by IPackageInstallObserver = " + returnCode); |
| mCallback.onError(ERROR_INSTALLATION_FAILED); |
| } |
| // remove the file containing the apk in order not to use too much space. |
| new File(mInstallInfo.location).delete(); |
| } |
| } |
| |
| /** |
| * Calls the success callback once all of the packages that needed to be installed are |
| * successfully installed. |
| */ |
| private void checkSuccess() { |
| for (InstallInfo info : mPackagesToInstall) { |
| if (!info.doneInstalling) { |
| return; |
| } |
| } |
| // Set package verification flag to its original value. |
| Global.putInt(mContext.getContentResolver(), Global.PACKAGE_VERIFIER_ENABLE, |
| mPackageVerifierEnable); |
| mCallback.onSuccess(); |
| } |
| |
| /** |
| * Attempt to install this package from an existing package installed under a different user. |
| * If this package is already installed for this user, this is a no-op. If it is not installed |
| * for another user, this will produce an error. |
| * @param info The package to install |
| */ |
| private void installExistingPackage(InstallInfo info) { |
| try { |
| ProvisionLogger.logi("Installing existing package " + info.packageName); |
| mPm.installExistingPackage(info.packageName); |
| info.doneInstalling = true; |
| } catch (PackageManager.NameNotFoundException e) { |
| mCallback.onError(ERROR_PACKAGE_INVALID); |
| return; |
| } |
| checkSuccess(); |
| } |
| |
| public abstract static class Callback { |
| public abstract void onSuccess(); |
| public abstract void onError(int errorCode); |
| } |
| |
| private static class InstallInfo { |
| public String packageName; |
| public String location; |
| public boolean doneInstalling; |
| |
| public InstallInfo(String packageName, String location) { |
| this.packageName = packageName; |
| this.location = location; |
| } |
| } |
| } |