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/*
* Copyright (C) 2015 The Android Open Source Project
* Copyright (C) 2023 The LineageOS 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.dialer.util;
import static android.Manifest.permission.ACCESS_COARSE_LOCATION;
import static android.Manifest.permission.ACCESS_FINE_LOCATION;
import static android.Manifest.permission.ADD_VOICEMAIL;
import static android.Manifest.permission.CALL_PHONE;
import static android.Manifest.permission.MODIFY_PHONE_STATE;
import static android.Manifest.permission.READ_CALL_LOG;
import static android.Manifest.permission.READ_CONTACTS;
import static android.Manifest.permission.READ_PHONE_STATE;
import static android.Manifest.permission.READ_VOICEMAIL;
import static android.Manifest.permission.SEND_SMS;
import static android.Manifest.permission.WRITE_CALL_LOG;
import static android.Manifest.permission.WRITE_CONTACTS;
import static android.Manifest.permission.WRITE_VOICEMAIL;
import android.Manifest.permission;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.core.content.ContextCompat;
import androidx.localbroadcastmanager.content.LocalBroadcastManager;
import com.android.dialer.R;
import com.android.dialer.common.LogUtil;
import com.android.dialer.storage.StorageComponent;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
/** Utility class to help with runtime permissions. */
public class PermissionsUtil {
private static final String PREFERENCE_CAMERA_ALLOWED_BY_USER = "camera_allowed_by_user";
private static final String PERMISSION_PREFERENCE = "dialer_permissions";
private static final String CEQUINT_PERMISSION = "com.cequint.ecid.CALLER_ID_LOOKUP";
// Permissions list retrieved from application manifest.
// Starting in Android O Permissions must be explicitly enumerated:
// https://developer.android.com/preview/behavior-changes.html#rmp
public static final List<String> allPhoneGroupPermissionsUsedInDialer =
Collections.unmodifiableList(
Arrays.asList(
READ_CALL_LOG,
WRITE_CALL_LOG,
READ_PHONE_STATE,
MODIFY_PHONE_STATE,
SEND_SMS,
CALL_PHONE,
ADD_VOICEMAIL,
WRITE_VOICEMAIL,
READ_VOICEMAIL));
public static final List<String> allContactsGroupPermissionsUsedInDialer =
Collections.unmodifiableList(Arrays.asList(READ_CONTACTS, WRITE_CONTACTS));
public static final List<String> allLocationGroupPermissionsUsedInDialer =
Collections.unmodifiableList(Arrays.asList(ACCESS_FINE_LOCATION, ACCESS_COARSE_LOCATION));
public static boolean hasPhonePermissions(Context context) {
return hasPermission(context, permission.CALL_PHONE);
}
public static boolean hasReadPhoneStatePermissions(Context context) {
return hasPermission(context, permission.READ_PHONE_STATE);
}
public static boolean hasModifyPhoneStatePermissions(Context context) {
return hasPermission(context, MODIFY_PHONE_STATE);
}
public static boolean hasContactsReadPermissions(Context context) {
return hasPermission(context, permission.READ_CONTACTS);
}
public static boolean hasContactsWritePermissions(Context context) {
return hasPermission(context, permission.WRITE_CONTACTS);
}
public static boolean hasLocationPermissions(Context context) {
return hasPermission(context, permission.ACCESS_FINE_LOCATION);
}
public static boolean hasCameraPermissions(Context context) {
return hasPermission(context, permission.CAMERA);
}
public static boolean hasMicrophonePermissions(Context context) {
return hasPermission(context, permission.RECORD_AUDIO);
}
public static boolean hasCallLogReadPermissions(Context context) {
return hasPermission(context, permission.READ_CALL_LOG);
}
public static boolean hasCallLogWritePermissions(Context context) {
return hasPermission(context, permission.WRITE_CALL_LOG);
}
public static boolean hasCequintPermissions(Context context) {
return hasPermission(context, CEQUINT_PERMISSION);
}
public static boolean hasReadVoicemailPermissions(Context context) {
return hasPermission(context, permission.READ_VOICEMAIL);
}
public static boolean hasWriteVoicemailPermissions(Context context) {
return hasPermission(context, permission.WRITE_VOICEMAIL);
}
public static boolean hasAddVoicemailPermissions(Context context) {
return hasPermission(context, permission.ADD_VOICEMAIL);
}
public static boolean hasSendSmsPermissions(Context context) {
return hasPermission(context, permission.SEND_SMS);
}
public static boolean hasPermission(Context context, String permission) {
return ContextCompat.checkSelfPermission(context, permission)
== PackageManager.PERMISSION_GRANTED;
}
/**
* Checks {@link android.content.SharedPreferences} if a permission has been requested before.
*
* <p>It is important to note that this method only works if you call {@link
* PermissionsUtil#permissionRequested(Context, String)} in {@link
* android.app.Activity#onRequestPermissionsResult(int, String[], int[])}.
*/
public static boolean isFirstRequest(Context context, String permission) {
return context
.getSharedPreferences(PERMISSION_PREFERENCE, Context.MODE_PRIVATE)
.getBoolean(permission, true);
}
/**
* Records in {@link android.content.SharedPreferences} that the specified permission has been
* requested at least once.
*
* <p>This method should be called in {@link android.app.Activity#onRequestPermissionsResult(int,
* String[], int[])}.
*/
public static void permissionRequested(Context context, String permission) {
context
.getSharedPreferences(PERMISSION_PREFERENCE, Context.MODE_PRIVATE)
.edit()
.putBoolean(permission, false)
.apply();
}
/**
* Rudimentary methods wrapping the use of a LocalBroadcastManager to simplify the process of
* notifying other classes when a particular fragment is notified that a permission is granted.
*
* <p>To be notified when a permission has been granted, create a new broadcast receiver and
* register it using {@link #registerPermissionReceiver(Context, BroadcastReceiver, String)}
*
* <p>E.g.
*
* <p>final BroadcastReceiver receiver = new BroadcastReceiver() { @Override public void
* onReceive(Context context, Intent intent) { refreshContactsView(); } }
*
* <p>PermissionsUtil.registerPermissionReceiver(getActivity(), receiver, READ_CONTACTS);
*
* <p>If you register to listen for multiple permissions, you can identify which permission was
* granted by inspecting {@link Intent#getAction()}.
*
* <p>In the fragment that requests for the permission, be sure to call {@link
* #notifyPermissionGranted(Context, String)} when the permission is granted so that any
* interested listeners are notified of the change.
*/
public static void registerPermissionReceiver(
Context context, BroadcastReceiver receiver, String permission) {
LogUtil.i("PermissionsUtil.registerPermissionReceiver", permission);
final IntentFilter filter = new IntentFilter(permission);
LocalBroadcastManager.getInstance(context).registerReceiver(receiver, filter);
}
public static void unregisterPermissionReceiver(Context context, BroadcastReceiver receiver) {
LogUtil.i("PermissionsUtil.unregisterPermissionReceiver", null);
LocalBroadcastManager.getInstance(context).unregisterReceiver(receiver);
}
public static void notifyPermissionGranted(Context context, String permission) {
LogUtil.i("PermissionsUtil.notifyPermissionGranted", permission);
final Intent intent = new Intent(permission);
LocalBroadcastManager.getInstance(context).sendBroadcast(intent);
}
/**
* Returns a list of permissions currently not granted to the application from the supplied list.
*
* @param context - The Application context.
* @param permissionsList - A list of permissions to check if the current application has been
* granted.
* @return An array of permissions that are currently DENIED to the application; a subset of
* permissionsList.
*/
@NonNull
public static String[] getPermissionsCurrentlyDenied(
@NonNull Context context, @NonNull List<String> permissionsList) {
List<String> permissionsCurrentlyDenied = new ArrayList<>();
for (String permission : permissionsList) {
if (!hasPermission(context, permission)) {
permissionsCurrentlyDenied.add(permission);
}
}
return permissionsCurrentlyDenied.toArray(new String[0]);
}
/**
* Since we are granted the camera permission automatically as a first-party app, we need to show
* a toast to let users know the permission was granted for privacy reasons.
*
* @return true if we've already shown the camera privacy toast.
*/
public static boolean hasCameraPrivacyToastShown(@NonNull Context context) {
return StorageComponent.get(context)
.unencryptedSharedPrefs()
.getBoolean(PREFERENCE_CAMERA_ALLOWED_BY_USER, false);
}
public static void showCameraPermissionToast(@NonNull Context context) {
Toast.makeText(context, context.getString(R.string.camera_privacy_text), Toast.LENGTH_LONG)
.show();
setCameraPrivacyToastShown(context);
}
public static void setCameraPrivacyToastShown(@NonNull Context context) {
StorageComponent.get(context)
.unencryptedSharedPrefs()
.edit()
.putBoolean(PREFERENCE_CAMERA_ALLOWED_BY_USER, true)
.apply();
}
}