1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.applications.specialaccess.notificationaccess; 18 19 import android.app.Activity; 20 import android.app.NotificationManager; 21 import android.app.settings.SettingsEnums; 22 import android.content.ComponentName; 23 import android.content.Context; 24 import android.content.Intent; 25 import android.content.pm.PackageManager; 26 import android.content.pm.ResolveInfo; 27 import android.content.pm.ServiceInfo; 28 import android.os.AsyncTask; 29 import android.os.Bundle; 30 import android.os.UserManager; 31 import android.provider.Settings; 32 import android.service.notification.NotificationListenerService; 33 import android.util.IconDrawableFactory; 34 import android.util.Log; 35 import android.util.Slog; 36 37 import androidx.annotation.VisibleForTesting; 38 import androidx.appcompat.app.AlertDialog; 39 import androidx.preference.Preference; 40 import androidx.preference.SwitchPreference; 41 42 import com.android.settings.R; 43 import com.android.settings.applications.AppInfoBase; 44 import com.android.settings.overlay.FeatureFactory; 45 import com.android.settings.widget.EntityHeaderController; 46 import com.android.settingslib.applications.AppUtils; 47 48 import java.util.List; 49 import java.util.Objects; 50 51 public class NotificationAccessDetails extends AppInfoBase { 52 private static final String TAG = "NotifAccessDetails"; 53 private static final String SWITCH_PREF_KEY = "notification_access_switch"; 54 55 private boolean mCreated; 56 private ComponentName mComponentName; 57 private CharSequence mServiceName; 58 private boolean mIsNls; 59 60 private NotificationManager mNm; 61 private PackageManager mPm; 62 63 @Override onCreate(Bundle savedInstanceState)64 public void onCreate(Bundle savedInstanceState) { 65 final Intent intent = getIntent(); 66 if (mComponentName == null && intent != null) { 67 String cn = intent.getStringExtra(Settings.EXTRA_NOTIFICATION_LISTENER_COMPONENT_NAME); 68 if (cn != null) { 69 mComponentName = ComponentName.unflattenFromString(cn); 70 if (mComponentName != null) { 71 final Bundle args = getArguments(); 72 args.putString(ARG_PACKAGE_NAME, mComponentName.getPackageName()); 73 } 74 } 75 } 76 super.onCreate(savedInstanceState); 77 mNm = getContext().getSystemService(NotificationManager.class); 78 mPm = getPackageManager(); 79 addPreferencesFromResource(R.xml.notification_access_permission_details); 80 } 81 82 @Override onActivityCreated(Bundle savedInstanceState)83 public void onActivityCreated(Bundle savedInstanceState) { 84 super.onActivityCreated(savedInstanceState); 85 if (mCreated) { 86 Log.w(TAG, "onActivityCreated: ignoring duplicate call"); 87 return; 88 } 89 mCreated = true; 90 if (mPackageInfo == null) return; 91 loadNotificationListenerService(); 92 final Activity activity = getActivity(); 93 final Preference pref = EntityHeaderController 94 .newInstance(activity, this, null /* header */) 95 .setRecyclerView(getListView(), getSettingsLifecycle()) 96 .setIcon(IconDrawableFactory.newInstance(getContext()) 97 .getBadgedIcon(mPackageInfo.applicationInfo)) 98 .setLabel(mPackageInfo.applicationInfo.loadLabel(mPm)) 99 .setSummary(mServiceName) 100 .setIsInstantApp(AppUtils.isInstant(mPackageInfo.applicationInfo)) 101 .setPackageName(mPackageName) 102 .setUid(mPackageInfo.applicationInfo.uid) 103 .setHasAppInfoLink(true) 104 .setButtonActions(EntityHeaderController.ActionType.ACTION_NONE, 105 EntityHeaderController.ActionType.ACTION_NONE) 106 .done(activity, getPrefContext()); 107 getPreferenceScreen().addPreference(pref); 108 } 109 110 @Override getMetricsCategory()111 public int getMetricsCategory() { 112 return SettingsEnums.NOTIFICATION_ACCESS_DETAIL; 113 } 114 115 @Override refreshUi()116 protected boolean refreshUi() { 117 final Context context = getContext(); 118 if (mComponentName == null) { 119 // No service given 120 Slog.d(TAG, "No component name provided"); 121 return false; 122 } 123 if (!mIsNls) { 124 // This component doesn't have the right androidmanifest definition to be an NLS 125 Slog.d(TAG, "Provided component name is not an NLS"); 126 return false; 127 } 128 if (UserManager.get(getContext()).isManagedProfile()) { 129 // Apps in the work profile do not support notification listeners. 130 Slog.d(TAG, "NLSes aren't allowed in work profiles"); 131 return false; 132 } 133 updatePreference(findPreference(SWITCH_PREF_KEY)); 134 return true; 135 } 136 137 @Override createDialog(int id, int errorCode)138 protected AlertDialog createDialog(int id, int errorCode) { 139 return null; 140 } 141 updatePreference(SwitchPreference preference)142 public void updatePreference(SwitchPreference preference) { 143 final CharSequence label = mPackageInfo.applicationInfo.loadLabel(mPm); 144 preference.setChecked(isServiceEnabled(mComponentName)); 145 preference.setOnPreferenceChangeListener((p, newValue) -> { 146 final boolean access = (Boolean) newValue; 147 if (!access) { 148 if (!isServiceEnabled(mComponentName)) { 149 return true; // already disabled 150 } 151 // show a friendly dialog 152 new FriendlyWarningDialogFragment() 153 .setServiceInfo(mComponentName, label, this) 154 .show(getFragmentManager(), "friendlydialog"); 155 return false; 156 } else { 157 if (isServiceEnabled(mComponentName)) { 158 return true; // already enabled 159 } 160 // show a scary dialog 161 new ScaryWarningDialogFragment() 162 .setServiceInfo(mComponentName, label, this) 163 .show(getFragmentManager(), "dialog"); 164 return false; 165 } 166 }); 167 } 168 169 @VisibleForTesting logSpecialPermissionChange(boolean enable, String packageName)170 void logSpecialPermissionChange(boolean enable, String packageName) { 171 int logCategory = enable ? SettingsEnums.APP_SPECIAL_PERMISSION_NOTIVIEW_ALLOW 172 : SettingsEnums.APP_SPECIAL_PERMISSION_NOTIVIEW_DENY; 173 FeatureFactory.getFactory(getContext()).getMetricsFeatureProvider().action(getContext(), 174 logCategory, packageName); 175 } 176 disable(final ComponentName cn)177 public void disable(final ComponentName cn) { 178 logSpecialPermissionChange(true, cn.getPackageName()); 179 mNm.setNotificationListenerAccessGranted(cn, false); 180 AsyncTask.execute(() -> { 181 if (!mNm.isNotificationPolicyAccessGrantedForPackage( 182 cn.getPackageName())) { 183 mNm.removeAutomaticZenRules(cn.getPackageName()); 184 } 185 }); 186 refreshUi(); 187 } 188 enable(ComponentName cn)189 protected void enable(ComponentName cn) { 190 logSpecialPermissionChange(true, cn.getPackageName()); 191 mNm.setNotificationListenerAccessGranted(cn, true); 192 refreshUi(); 193 } 194 isServiceEnabled(ComponentName cn)195 protected boolean isServiceEnabled(ComponentName cn) { 196 return mNm.isNotificationListenerAccessGranted(cn); 197 } 198 loadNotificationListenerService()199 protected void loadNotificationListenerService() { 200 mIsNls = false; 201 202 if (mComponentName == null) { 203 return; 204 } 205 Intent intent = new Intent(NotificationListenerService.SERVICE_INTERFACE) 206 .setComponent(mComponentName); 207 List<ResolveInfo> installedServices = mPm.queryIntentServicesAsUser( 208 intent, PackageManager.GET_SERVICES | PackageManager.GET_META_DATA, mUserId); 209 for (ResolveInfo resolveInfo : installedServices) { 210 ServiceInfo info = resolveInfo.serviceInfo; 211 if (android.Manifest.permission.BIND_NOTIFICATION_LISTENER_SERVICE.equals( 212 info.permission)) { 213 if (Objects.equals(mComponentName, info.getComponentName())) { 214 mIsNls = true; 215 mServiceName = info.loadLabel(mPm); 216 break; 217 } 218 } 219 } 220 } 221 }