1 /* 2 * Copyright (C) 2015 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.notification; 18 19 import android.annotation.Nullable; 20 import android.app.AlertDialog; 21 import android.app.Dialog; 22 import android.app.DialogFragment; 23 import android.app.NotificationManager; 24 import android.content.ComponentName; 25 import android.content.Context; 26 import android.content.DialogInterface; 27 import android.content.pm.ApplicationInfo; 28 import android.content.pm.PackageItemInfo; 29 import android.content.pm.PackageManager; 30 import android.database.ContentObserver; 31 import android.net.Uri; 32 import android.os.AsyncTask; 33 import android.os.Bundle; 34 import android.os.Handler; 35 import android.os.Looper; 36 import android.provider.Settings; 37 import android.provider.Settings.Secure; 38 import android.support.v14.preference.SwitchPreference; 39 import android.support.v7.preference.Preference; 40 import android.support.v7.preference.Preference.OnPreferenceChangeListener; 41 import android.support.v7.preference.PreferenceScreen; 42 import android.text.TextUtils; 43 import android.util.ArraySet; 44 import android.view.View; 45 import android.widget.Toast; 46 47 import com.android.internal.annotations.VisibleForTesting; 48 import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 49 import com.android.settings.R; 50 import com.android.settings.core.instrumentation.InstrumentedDialogFragment; 51 import com.android.settings.overlay.FeatureFactory; 52 53 import java.util.ArrayList; 54 import java.util.Collections; 55 import java.util.List; 56 57 public class ZenAccessSettings extends EmptyTextSettings { 58 59 private final SettingObserver mObserver = new SettingObserver(); 60 private static final String ENABLED_SERVICES_SEPARATOR = ":"; 61 62 private Context mContext; 63 private PackageManager mPkgMan; 64 private NotificationManager mNoMan; 65 66 @Override 67 public int getMetricsCategory() { 68 return MetricsEvent.NOTIFICATION_ZEN_MODE_ACCESS; 69 } 70 71 @Override 72 public void onCreate(Bundle icicle) { 73 super.onCreate(icicle); 74 75 mContext = getActivity(); 76 mPkgMan = mContext.getPackageManager(); 77 mNoMan = mContext.getSystemService(NotificationManager.class); 78 setPreferenceScreen(getPreferenceManager().createPreferenceScreen(mContext)); 79 } 80 81 @Override 82 public void onViewCreated(View view, @Nullable Bundle savedInstanceState) { 83 super.onViewCreated(view, savedInstanceState); 84 setEmptyText(R.string.zen_access_empty_text); 85 } 86 87 @Override 88 public void onResume() { 89 super.onResume(); 90 reloadList(); 91 getContentResolver().registerContentObserver( 92 Secure.getUriFor(Secure.ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES), false, 93 mObserver); 94 getContentResolver().registerContentObserver( 95 Secure.getUriFor(Secure.ENABLED_NOTIFICATION_LISTENERS), false, 96 mObserver); 97 } 98 99 @Override 100 public void onPause() { 101 super.onPause(); 102 getContentResolver().unregisterContentObserver(mObserver); 103 } 104 105 private void reloadList() { 106 final PreferenceScreen screen = getPreferenceScreen(); 107 screen.removeAll(); 108 final ArrayList<ApplicationInfo> apps = new ArrayList<>(); 109 final ArraySet<String> requesting = mNoMan.getPackagesRequestingNotificationPolicyAccess(); 110 if (!requesting.isEmpty()) { 111 final List<ApplicationInfo> installed = mPkgMan.getInstalledApplications(0); 112 if (installed != null) { 113 for (ApplicationInfo app : installed) { 114 if (requesting.contains(app.packageName)) { 115 apps.add(app); 116 } 117 } 118 } 119 } 120 ArraySet<String> autoApproved = getEnabledNotificationListeners(); 121 requesting.addAll(autoApproved); 122 Collections.sort(apps, new PackageItemInfo.DisplayNameComparator(mPkgMan)); 123 for (ApplicationInfo app : apps) { 124 final String pkg = app.packageName; 125 final CharSequence label = app.loadLabel(mPkgMan); 126 final SwitchPreference pref = new SwitchPreference(getPrefContext()); 127 pref.setPersistent(false); 128 pref.setIcon(app.loadIcon(mPkgMan)); 129 pref.setTitle(label); 130 pref.setChecked(hasAccess(pkg)); 131 if (autoApproved.contains(pkg)) { 132 pref.setEnabled(false); 133 pref.setSummary(getString(R.string.zen_access_disabled_package_warning)); 134 } 135 pref.setOnPreferenceChangeListener(new OnPreferenceChangeListener() { 136 @Override 137 public boolean onPreferenceChange(Preference preference, Object newValue) { 138 final boolean access = (Boolean) newValue; 139 if (access) { 140 new ScaryWarningDialogFragment() 141 .setPkgInfo(pkg, label) 142 .show(getFragmentManager(), "dialog"); 143 } else { 144 new FriendlyWarningDialogFragment() 145 .setPkgInfo(pkg, label) 146 .show(getFragmentManager(), "dialog"); 147 } 148 return false; 149 } 150 }); 151 screen.addPreference(pref); 152 } 153 } 154 155 private ArraySet<String> getEnabledNotificationListeners() { 156 ArraySet<String> packages = new ArraySet<>(); 157 String settingValue = Settings.Secure.getString(getContext().getContentResolver(), 158 Settings.Secure.ENABLED_NOTIFICATION_LISTENERS); 159 if (!TextUtils.isEmpty(settingValue)) { 160 String[] restored = settingValue.split(ENABLED_SERVICES_SEPARATOR); 161 for (int i = 0; i < restored.length; i++) { 162 ComponentName value = ComponentName.unflattenFromString(restored[i]); 163 if (null != value) { 164 packages.add(value.getPackageName()); 165 } 166 } 167 } 168 return packages; 169 } 170 171 private boolean hasAccess(String pkg) { 172 return mNoMan.isNotificationPolicyAccessGrantedForPackage(pkg); 173 } 174 175 private static void setAccess(final Context context, final String pkg, final boolean access) { 176 logSpecialPermissionChange(access, pkg, context); 177 AsyncTask.execute(new Runnable() { 178 @Override 179 public void run() { 180 final NotificationManager mgr = context.getSystemService(NotificationManager.class); 181 mgr.setNotificationPolicyAccessGranted(pkg, access); 182 } 183 }); 184 } 185 186 @VisibleForTesting 187 static void logSpecialPermissionChange(boolean enable, String packageName, Context context) { 188 int logCategory = enable ? MetricsEvent.APP_SPECIAL_PERMISSION_DND_ALLOW 189 : MetricsEvent.APP_SPECIAL_PERMISSION_DND_DENY; 190 FeatureFactory.getFactory(context).getMetricsFeatureProvider().action(context, 191 logCategory, packageName); 192 } 193 194 195 private static void deleteRules(final Context context, final String pkg) { 196 AsyncTask.execute(new Runnable() { 197 @Override 198 public void run() { 199 final NotificationManager mgr = context.getSystemService(NotificationManager.class); 200 mgr.removeAutomaticZenRules(pkg); 201 } 202 }); 203 } 204 205 private final class SettingObserver extends ContentObserver { 206 public SettingObserver() { 207 super(new Handler(Looper.getMainLooper())); 208 } 209 210 @Override 211 public void onChange(boolean selfChange, Uri uri) { 212 reloadList(); 213 } 214 } 215 216 /** 217 * Warning dialog when allowing zen access warning about the privileges being granted. 218 */ 219 public static class ScaryWarningDialogFragment extends InstrumentedDialogFragment { 220 static final String KEY_PKG = "p"; 221 static final String KEY_LABEL = "l"; 222 223 @Override 224 public int getMetricsCategory() { 225 return MetricsEvent.DIALOG_ZEN_ACCESS_GRANT; 226 } 227 228 public ScaryWarningDialogFragment setPkgInfo(String pkg, CharSequence label) { 229 Bundle args = new Bundle(); 230 args.putString(KEY_PKG, pkg); 231 args.putString(KEY_LABEL, TextUtils.isEmpty(label) ? pkg : label.toString()); 232 setArguments(args); 233 return this; 234 } 235 236 @Override 237 public Dialog onCreateDialog(Bundle savedInstanceState) { 238 super.onCreate(savedInstanceState); 239 final Bundle args = getArguments(); 240 final String pkg = args.getString(KEY_PKG); 241 final String label = args.getString(KEY_LABEL); 242 243 final String title = getResources().getString(R.string.zen_access_warning_dialog_title, 244 label); 245 final String summary = getResources() 246 .getString(R.string.zen_access_warning_dialog_summary); 247 return new AlertDialog.Builder(getContext()) 248 .setMessage(summary) 249 .setTitle(title) 250 .setCancelable(true) 251 .setPositiveButton(R.string.allow, 252 new DialogInterface.OnClickListener() { 253 public void onClick(DialogInterface dialog, int id) { 254 setAccess(getContext(), pkg, true); 255 } 256 }) 257 .setNegativeButton(R.string.deny, 258 new DialogInterface.OnClickListener() { 259 public void onClick(DialogInterface dialog, int id) { 260 // pass 261 } 262 }) 263 .create(); 264 } 265 } 266 267 /** 268 * Warning dialog when revoking zen access warning that zen rule instances will be deleted. 269 */ 270 public static class FriendlyWarningDialogFragment extends InstrumentedDialogFragment { 271 static final String KEY_PKG = "p"; 272 static final String KEY_LABEL = "l"; 273 274 275 @Override 276 public int getMetricsCategory() { 277 return MetricsEvent.DIALOG_ZEN_ACCESS_REVOKE; 278 } 279 280 public FriendlyWarningDialogFragment setPkgInfo(String pkg, CharSequence label) { 281 Bundle args = new Bundle(); 282 args.putString(KEY_PKG, pkg); 283 args.putString(KEY_LABEL, TextUtils.isEmpty(label) ? pkg : label.toString()); 284 setArguments(args); 285 return this; 286 } 287 288 @Override 289 public Dialog onCreateDialog(Bundle savedInstanceState) { 290 super.onCreate(savedInstanceState); 291 final Bundle args = getArguments(); 292 final String pkg = args.getString(KEY_PKG); 293 final String label = args.getString(KEY_LABEL); 294 295 final String title = getResources().getString( 296 R.string.zen_access_revoke_warning_dialog_title, label); 297 final String summary = getResources() 298 .getString(R.string.zen_access_revoke_warning_dialog_summary); 299 return new AlertDialog.Builder(getContext()) 300 .setMessage(summary) 301 .setTitle(title) 302 .setCancelable(true) 303 .setPositiveButton(R.string.okay, 304 new DialogInterface.OnClickListener() { 305 public void onClick(DialogInterface dialog, int id) { 306 deleteRules(getContext(), pkg); 307 setAccess(getContext(), pkg, false); 308 } 309 }) 310 .setNegativeButton(R.string.cancel, 311 new DialogInterface.OnClickListener() { 312 public void onClick(DialogInterface dialog, int id) { 313 // pass 314 } 315 }) 316 .create(); 317 } 318 } 319 } 320
