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/*
* Copyright (C) 2019 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.permission.model;
import android.app.LoaderManager;
import android.app.LoaderManager.LoaderCallbacks;
import android.content.AsyncTaskLoader;
import android.content.Context;
import android.content.Loader;
import android.os.Bundle;
import android.os.Process;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* Loads all permission usages for a set of apps and permission groups.
*/
public final class PermissionUsages implements LoaderCallbacks<List<AppPermissionUsage>> {
public static final int USAGE_FLAG_LAST = 1 << 0;
public static final int USAGE_FLAG_HISTORICAL = 1 << 2;
private final ArrayList<AppPermissionUsage> mUsages = new ArrayList<>();
private final @NonNull Context mContext;
private static final String KEY_FILTER_UID = "KEY_FILTER_UID";
private static final String KEY_FILTER_PACKAGE_NAME = "KEY_FILTER_PACKAGE_NAME";
private static final String KEY_FILTER_PERMISSION_GROUP = "KEY_FILTER_PERMISSION_GROUP";
private static final String KEY_FILTER_BEGIN_TIME_MILLIS = "KEY_FILTER_BEGIN_TIME_MILLIS";
private static final String KEY_FILTER_END_TIME_MILLIS = "KEY_FILTER_END_TIME_MILLIS";
private static final String KEY_USAGE_FLAGS = "KEY_USAGE_FLAGS";
private static final String KEY_GET_UI_INFO = "KEY_GET_UI_INFO";
private static final String KEY_GET_NON_PLATFORM_PERMISSIONS =
"KEY_GET_NON_PLATFORM_PERMISSIONS";
private @Nullable PermissionsUsagesChangeCallback mCallback;
public interface PermissionsUsagesChangeCallback {
void onPermissionUsagesChanged();
}
public PermissionUsages(@NonNull Context context) {
mContext = context;
}
public void load(@Nullable String filterPackageName,
@Nullable String[] filterPermissionGroups, long filterBeginTimeMillis,
long filterEndTimeMillis, int usageFlags, @NonNull LoaderManager loaderManager,
boolean getUiInfo, boolean getNonPlatformPermissions,
@NonNull PermissionsUsagesChangeCallback callback, boolean sync) {
load(Process.INVALID_UID, filterPackageName, filterPermissionGroups, filterBeginTimeMillis,
filterEndTimeMillis, usageFlags, loaderManager, getUiInfo,
getNonPlatformPermissions, callback, sync);
}
public void load(int filterUid, @Nullable String filterPackageName,
@Nullable String[] filterPermissionGroups, long filterBeginTimeMillis,
long filterEndTimeMillis, int usageFlags, @NonNull LoaderManager loaderManager,
boolean getUiInfo, boolean getNonPlatformPermissions,
@NonNull PermissionsUsagesChangeCallback callback, boolean sync) {
mCallback = callback;
final Bundle args = new Bundle();
args.putInt(KEY_FILTER_UID, filterUid);
args.putString(KEY_FILTER_PACKAGE_NAME, filterPackageName);
args.putStringArray(KEY_FILTER_PERMISSION_GROUP, filterPermissionGroups);
args.putLong(KEY_FILTER_BEGIN_TIME_MILLIS, filterBeginTimeMillis);
args.putLong(KEY_FILTER_END_TIME_MILLIS, filterEndTimeMillis);
args.putInt(KEY_USAGE_FLAGS, usageFlags);
args.putBoolean(KEY_GET_UI_INFO, getUiInfo);
args.putBoolean(KEY_GET_NON_PLATFORM_PERMISSIONS, getNonPlatformPermissions);
if (sync) {
final UsageLoader loader = new UsageLoader(mContext, args);
final List<AppPermissionUsage> usages = loader.loadInBackground();
onLoadFinished(loader, usages);
} else {
loaderManager.restartLoader(1, args, this);
}
}
@Override
public Loader<List<AppPermissionUsage>> onCreateLoader(int id, Bundle args) {
return new UsageLoader(mContext, args);
}
@Override
public void onLoadFinished(@NonNull Loader<List<AppPermissionUsage>> loader,
List<AppPermissionUsage> usages) {
mUsages.clear();
mUsages.addAll(usages);
if (mCallback != null) {
mCallback.onPermissionUsagesChanged();
}
}
@Override
public void onLoaderReset(@NonNull Loader<List<AppPermissionUsage>> loader) {
mUsages.clear();
mCallback.onPermissionUsagesChanged();
}
public @NonNull List<AppPermissionUsage> getUsages() {
return mUsages;
}
public void stopLoader(@NonNull LoaderManager loaderManager) {
loaderManager.destroyLoader(1);
}
public static @Nullable AppPermissionUsage.GroupUsage loadLastGroupUsage(
@NonNull Context context, @NonNull AppPermissionGroup group) {
return null;
}
private static final class UsageLoader extends AsyncTaskLoader<List<AppPermissionUsage>> {
private final int mFilterUid;
private @Nullable String mFilterPackageName;
private @Nullable String[] mFilterPermissionGroups;
private final long mFilterBeginTimeMillis;
private final long mFilterEndTimeMillis;
private final int mUsageFlags;
private final boolean mGetUiInfo;
private final boolean mGetNonPlatformPermissions;
UsageLoader(@NonNull Context context, @NonNull Bundle args) {
super(context);
mFilterUid = args.getInt(KEY_FILTER_UID);
mFilterPackageName = args.getString(KEY_FILTER_PACKAGE_NAME);
mFilterPermissionGroups = args.getStringArray(KEY_FILTER_PERMISSION_GROUP);
mFilterBeginTimeMillis = args.getLong(KEY_FILTER_BEGIN_TIME_MILLIS);
mFilterEndTimeMillis = args.getLong(KEY_FILTER_END_TIME_MILLIS);
mUsageFlags = args.getInt(KEY_USAGE_FLAGS);
mGetUiInfo = args.getBoolean(KEY_GET_UI_INFO);
mGetNonPlatformPermissions = args.getBoolean(KEY_GET_NON_PLATFORM_PERMISSIONS);
}
@Override
protected void onStartLoading() {
forceLoad();
}
@Override
public @NonNull List<AppPermissionUsage> loadInBackground() {
return Collections.emptyList();
}
}
}
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