content: /*
   * Copyright (C) 2016 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.launcher3.util;
  
  import android.content.ActivityNotFoundException;
  import android.content.ComponentName;
  import android.content.Context;
  import android.content.Intent;
  import android.content.IntentFilter;
  import android.content.pm.ApplicationInfo;
  import android.content.pm.LauncherActivityInfo;
  import android.content.pm.PackageInfo;
  import android.content.pm.PackageManager;
  import android.content.pm.PackageManager.NameNotFoundException;
  import android.content.pm.ResolveInfo;
  import android.content.res.Resources;
  import android.graphics.Rect;
  import android.net.Uri;
  import android.os.Build;
  import android.os.Bundle;
  import android.os.PatternMatcher;
  import android.os.UserHandle;
  import android.text.TextUtils;
  import android.util.Log;
  import android.util.Pair;
  import android.widget.Toast;
  
  import androidx.core.app.AppOpsManagerCompat;
  
  import com.android.launcher3.AppInfo;
  import com.android.launcher3.ItemInfo;
  import com.android.launcher3.LauncherAppWidgetInfo;
  import com.android.launcher3.PendingAddItemInfo;
  import com.android.launcher3.PromiseAppInfo;
  import com.android.launcher3.R;
  import com.android.launcher3.Utilities;
  import com.android.launcher3.WorkspaceItemInfo;
  import com.android.launcher3.compat.LauncherAppsCompat;
  
  import java.net.URISyntaxException;
  import java.util.List;
  
  /**
   * Utility methods using package manager
   */
  public class PackageManagerHelper {
  
      private static final String TAG = "PackageManagerHelper";
  
      private final Context mContext;
      private final PackageManager mPm;
      private final LauncherAppsCompat mLauncherApps;
  
      public PackageManagerHelper(Context context) {
          mContext = context;
          mPm = context.getPackageManager();
          mLauncherApps = LauncherAppsCompat.getInstance(context);
      }
  
      /**
       * Returns true if the app can possibly be on the SDCard. This is just a workaround and doesn't
       * guarantee that the app is on SD card.
       */
      public boolean isAppOnSdcard(String packageName, UserHandle user) {
          ApplicationInfo info = mLauncherApps.getApplicationInfo(
                  packageName, PackageManager.MATCH_UNINSTALLED_PACKAGES, user);
          return info != null && (info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
      }
  
      /**
       * Returns whether the target app is suspended for a given user as per
       * {@link android.app.admin.DevicePolicyManager#isPackageSuspended}.
       */
      public boolean isAppSuspended(String packageName, UserHandle user) {
          ApplicationInfo info = mLauncherApps.getApplicationInfo(packageName, 0, user);
          return info != null && isAppSuspended(info);
      }
  
      public boolean isSafeMode() {
          return mContext.getPackageManager().isSafeMode();
      }
  
      public Intent getAppLaunchIntent(String pkg, UserHandle user) {
          List<LauncherActivityInfo> activities = mLauncherApps.getActivityList(pkg, user);
          return activities.isEmpty() ? null :
                  AppInfo.makeLaunchIntent(activities.get(0));
      }
  
      /**
       * Returns whether an application is suspended as per
       * {@link android.app.admin.DevicePolicyManager#isPackageSuspended}.
       */
      public static boolean isAppSuspended(ApplicationInfo info) {
          if(!Utilities.ATLEAST_NOUGAT){
              return false;
          }
          return (info.flags & ApplicationInfo.FLAG_SUSPENDED) != 0;
      }
  
      /**
       * Returns true if {@param srcPackage} has the permission required to start the activity from
       * {@param intent}. If {@param srcPackage} is null, then the activity should not need
       * any permissions
       */
      public boolean hasPermissionForActivity(Intent intent, String srcPackage) {
          ResolveInfo target = mPm.resolveActivity(intent, 0);
          if (target == null) {
              // Not a valid target
              return false;
          }
          if (TextUtils.isEmpty(target.activityInfo.permission)) {
              // No permission is needed
              return true;
          }
          if (TextUtils.isEmpty(srcPackage)) {
              // The activity requires some permission but there is no source.
              return false;
          }
  
          // Source does not have sufficient permissions.
          if(mPm.checkPermission(target.activityInfo.permission, srcPackage) !=
                  PackageManager.PERMISSION_GRANTED) {
              return false;
          }
  
          // On M and above also check AppOpsManager for compatibility mode permissions.
          if (TextUtils.isEmpty(AppOpsManagerCompat.permissionToOp(target.activityInfo.permission))) {
              // There is no app-op for this permission, which could have been disabled.
              return true;
          }
  
          // There is no direct way to check if the app-op is allowed for a particular app. Since
          // app-op is only enabled for apps running in compatibility mode, simply block such apps.
  
          try {
              return mPm.getApplicationInfo(srcPackage, 0).targetSdkVersion >= Build.VERSION_CODES.M;
          } catch (NameNotFoundException e) { }
  
          return false;
      }
  
      public Intent getMarketIntent(String packageName) {
          return new Intent(Intent.ACTION_VIEW)
                  .setData(new Uri.Builder()
                          .scheme("market")
                          .authority("details")
                          .appendQueryParameter("id", packageName)
                          .build())
                  .putExtra(Intent.EXTRA_REFERRER, new Uri.Builder().scheme("android-app")
                          .authority(mContext.getPackageName()).build());
      }
  
      /**
       * Creates a new market search intent.
       */
      public static Intent getMarketSearchIntent(Context context, String query) {
          try {
              Intent intent = Intent.parseUri(context.getString(R.string.market_search_intent), 0);
              if (!TextUtils.isEmpty(query)) {
                  intent.setData(
                          intent.getData().buildUpon().appendQueryParameter("q", query).build());
              }
              return intent;
          } catch (URISyntaxException e) {
              throw new RuntimeException(e);
          }
      }
  
      public static Intent getStyleWallpapersIntent(Context context) {
          return new Intent(Intent.ACTION_SET_WALLPAPER).setComponent(
                  new ComponentName(context.getString(R.string.wallpaper_picker_package),
                  "com.android.customization.picker.CustomizationPickerActivity"));
      }
  
      /**
       * Starts the details activity for {@code info}
       */
      public void startDetailsActivityForInfo(ItemInfo info, Rect sourceBounds, Bundle opts) {
          if (info instanceof PromiseAppInfo) {
              PromiseAppInfo promiseAppInfo = (PromiseAppInfo) info;
              mContext.startActivity(promiseAppInfo.getMarketIntent(mContext));
              return;
          }
          ComponentName componentName = null;
          if (info instanceof AppInfo) {
              componentName = ((AppInfo) info).componentName;
          } else if (info instanceof WorkspaceItemInfo) {
              componentName = info.getTargetComponent();
          } else if (info instanceof PendingAddItemInfo) {
              componentName = ((PendingAddItemInfo) info).componentName;
          } else if (info instanceof LauncherAppWidgetInfo) {
              componentName = ((LauncherAppWidgetInfo) info).providerName;
          }
          if (componentName != null) {
              try {
                  mLauncherApps.showAppDetailsForProfile(
                          componentName, info.user, sourceBounds, opts);
              } catch (SecurityException | ActivityNotFoundException e) {
                  Toast.makeText(mContext, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
                  Log.e(TAG, "Unable to launch settings", e);
              }
          }
      }
  
      /**
       * Creates an intent filter to listen for actions with a specific package in the data field.
       */
      public static IntentFilter getPackageFilter(String pkg, String... actions) {
          IntentFilter packageFilter = new IntentFilter();
          for (String action : actions) {
              packageFilter.addAction(action);
          }
          packageFilter.addDataScheme("package");
          packageFilter.addDataSchemeSpecificPart(pkg, PatternMatcher.PATTERN_LITERAL);
          return packageFilter;
      }
  
      public static boolean isSystemApp(Context context, Intent intent) {
          PackageManager pm = context.getPackageManager();
          ComponentName cn = intent.getComponent();
          String packageName = null;
          if (cn == null) {
              ResolveInfo info = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
              if ((info != null) && (info.activityInfo != null)) {
                  packageName = info.activityInfo.packageName;
              }
          } else {
              packageName = cn.getPackageName();
          }
          if (packageName == null) {
              packageName = intent.getPackage();
          }
          if (packageName != null) {
              try {
                  PackageInfo info = pm.getPackageInfo(packageName, 0);
                  return (info != null) && (info.applicationInfo != null) &&
                          ((info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0);
              } catch (NameNotFoundException e) {
                  return false;
              }
          } else {
              return false;
          }
      }
  
      /**
       * Finds a system apk which had a broadcast receiver listening to a particular action.
       * @param action intent action used to find the apk
       * @return a pair of apk package name and the resources.
       */
      public static Pair<String, Resources> findSystemApk(String action, PackageManager pm) {
          final Intent intent = new Intent(action);
          for (ResolveInfo info : pm.queryBroadcastReceivers(intent, 0)) {
              if (info.activityInfo != null &&
                      (info.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
                  final String packageName = info.activityInfo.packageName;
                  try {
                      final Resources res = pm.getResourcesForApplication(packageName);
                      return Pair.create(packageName, res);
                  } catch (NameNotFoundException e) {
                      Log.w(TAG, "Failed to find resources for " + packageName);
                  }
              }
          }
          return null;
      }
  
      /**
       * Returns true if the intent is a valid launch intent for a launcher activity of an app.
       * This is used to identify shortcuts which are different from the ones exposed by the
       * applications' manifest file.
       *
       * @param launchIntent The intent that will be launched when the shortcut is clicked.
       */
      public static boolean isLauncherAppTarget(Intent launchIntent) {
          if (launchIntent != null
                  && Intent.ACTION_MAIN.equals(launchIntent.getAction())
                  && launchIntent.getComponent() != null
                  && launchIntent.getCategories() != null
                  && launchIntent.getCategories().size() == 1
                  && launchIntent.hasCategory(Intent.CATEGORY_LAUNCHER)
                  && TextUtils.isEmpty(launchIntent.getDataString())) {
              // An app target can either have no extra or have ItemInfo.EXTRA_PROFILE.
              Bundle extras = launchIntent.getExtras();
              return extras == null || extras.keySet().isEmpty();
          }
          return false;
      }
  }
  