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      1 /*
      2  * Copyright (C) 2008 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;
     18 
     19 import android.app.Activity;
     20 import android.app.Dialog;
     21 import android.app.ProgressDialog;
     22 import android.content.BroadcastReceiver;
     23 import android.content.ContentResolver;
     24 import android.content.ContentUris;
     25 import android.content.ContentValues;
     26 import android.content.Context;
     27 import android.content.Intent;
     28 import android.content.IntentFilter;
     29 import android.database.Cursor;
     30 import android.net.Uri;
     31 import android.os.Bundle;
     32 import android.os.Handler;
     33 import android.os.HandlerThread;
     34 import android.os.Looper;
     35 import android.os.Message;
     36 import android.os.PersistableBundle;
     37 import android.os.UserHandle;
     38 import android.os.UserManager;
     39 import android.provider.Telephony;
     40 import android.support.v7.preference.Preference;
     41 import android.support.v7.preference.PreferenceGroup;
     42 import android.support.v7.preference.PreferenceScreen;
     43 import android.telephony.CarrierConfigManager;
     44 import android.telephony.SubscriptionInfo;
     45 import android.telephony.SubscriptionManager;
     46 import android.telephony.TelephonyManager;
     47 import android.text.TextUtils;
     48 import android.util.Log;
     49 import android.view.Menu;
     50 import android.view.MenuInflater;
     51 import android.view.MenuItem;
     52 import android.view.MotionEvent;
     53 import android.widget.TextView;
     54 import android.widget.Toast;
     55 
     56 import com.android.internal.logging.MetricsProto.MetricsEvent;
     57 import com.android.internal.telephony.PhoneConstants;
     58 import com.android.internal.telephony.TelephonyIntents;
     59 import com.android.internal.telephony.dataconnection.ApnSetting;
     60 import com.android.internal.telephony.uicc.IccRecords;
     61 import com.android.internal.telephony.uicc.UiccController;
     62 import com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
     63 
     64 import java.util.ArrayList;
     65 
     66 public class ApnSettings extends RestrictedSettingsFragment implements
     67         Preference.OnPreferenceChangeListener {
     68     static final String TAG = "ApnSettings";
     69 
     70     public static final String EXTRA_POSITION = "position";
     71     public static final String RESTORE_CARRIERS_URI =
     72         "content://telephony/carriers/restore";
     73     public static final String PREFERRED_APN_URI =
     74         "content://telephony/carriers/preferapn";
     75 
     76     public static final String APN_ID = "apn_id";
     77     public static final String SUB_ID = "sub_id";
     78     public static final String MVNO_TYPE = "mvno_type";
     79     public static final String MVNO_MATCH_DATA = "mvno_match_data";
     80 
     81     private static final int ID_INDEX = 0;
     82     private static final int NAME_INDEX = 1;
     83     private static final int APN_INDEX = 2;
     84     private static final int TYPES_INDEX = 3;
     85     private static final int MVNO_TYPE_INDEX = 4;
     86     private static final int MVNO_MATCH_DATA_INDEX = 5;
     87 
     88     private static final int MENU_NEW = Menu.FIRST;
     89     private static final int MENU_RESTORE = Menu.FIRST + 1;
     90 
     91     private static final int EVENT_RESTORE_DEFAULTAPN_START = 1;
     92     private static final int EVENT_RESTORE_DEFAULTAPN_COMPLETE = 2;
     93 
     94     private static final int DIALOG_RESTORE_DEFAULTAPN = 1001;
     95 
     96     private static final Uri DEFAULTAPN_URI = Uri.parse(RESTORE_CARRIERS_URI);
     97     private static final Uri PREFERAPN_URI = Uri.parse(PREFERRED_APN_URI);
     98 
     99     private static boolean mRestoreDefaultApnMode;
    100 
    101     private UserManager mUserManager;
    102     private RestoreApnUiHandler mRestoreApnUiHandler;
    103     private RestoreApnProcessHandler mRestoreApnProcessHandler;
    104     private HandlerThread mRestoreDefaultApnThread;
    105     private SubscriptionInfo mSubscriptionInfo;
    106     private UiccController mUiccController;
    107     private String mMvnoType;
    108     private String mMvnoMatchData;
    109 
    110     private String mSelectedKey;
    111 
    112     private IntentFilter mMobileStateFilter;
    113 
    114     private boolean mUnavailable;
    115 
    116     private boolean mHideImsApn;
    117     private boolean mAllowAddingApns;
    118 
    119     public ApnSettings() {
    120         super(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS);
    121     }
    122 
    123     private final BroadcastReceiver mMobileStateReceiver = new BroadcastReceiver() {
    124         @Override
    125         public void onReceive(Context context, Intent intent) {
    126             if (intent.getAction().equals(
    127                     TelephonyIntents.ACTION_ANY_DATA_CONNECTION_STATE_CHANGED)) {
    128                 PhoneConstants.DataState state = getMobileDataState(intent);
    129                 switch (state) {
    130                 case CONNECTED:
    131                     if (!mRestoreDefaultApnMode) {
    132                         fillList();
    133                     } else {
    134                         showDialog(DIALOG_RESTORE_DEFAULTAPN);
    135                     }
    136                     break;
    137                 }
    138             }
    139         }
    140     };
    141 
    142     private static PhoneConstants.DataState getMobileDataState(Intent intent) {
    143         String str = intent.getStringExtra(PhoneConstants.STATE_KEY);
    144         if (str != null) {
    145             return Enum.valueOf(PhoneConstants.DataState.class, str);
    146         } else {
    147             return PhoneConstants.DataState.DISCONNECTED;
    148         }
    149     }
    150 
    151     @Override
    152     protected int getMetricsCategory() {
    153         return MetricsEvent.APN;
    154     }
    155 
    156     @Override
    157     public void onCreate(Bundle icicle) {
    158         super.onCreate(icicle);
    159         final Activity activity = getActivity();
    160         final int subId = activity.getIntent().getIntExtra(SUB_ID,
    161                 SubscriptionManager.INVALID_SUBSCRIPTION_ID);
    162 
    163         mMobileStateFilter = new IntentFilter(
    164                 TelephonyIntents.ACTION_ANY_DATA_CONNECTION_STATE_CHANGED);
    165 
    166         setIfOnlyAvailableForAdmins(true);
    167 
    168         mSubscriptionInfo = SubscriptionManager.from(activity).getActiveSubscriptionInfo(subId);
    169         mUiccController = UiccController.getInstance();
    170 
    171         CarrierConfigManager configManager = (CarrierConfigManager)
    172                 getSystemService(Context.CARRIER_CONFIG_SERVICE);
    173         PersistableBundle b = configManager.getConfig();
    174         mHideImsApn = b.getBoolean(CarrierConfigManager.KEY_HIDE_IMS_APN_BOOL);
    175         mAllowAddingApns = b.getBoolean(CarrierConfigManager.KEY_ALLOW_ADDING_APNS_BOOL);
    176         mUserManager = UserManager.get(activity);
    177     }
    178 
    179     @Override
    180     public void onActivityCreated(Bundle savedInstanceState) {
    181         super.onActivityCreated(savedInstanceState);
    182 
    183         getEmptyTextView().setText(R.string.apn_settings_not_available);
    184         mUnavailable = isUiRestricted();
    185         setHasOptionsMenu(!mUnavailable);
    186         if (mUnavailable) {
    187             setPreferenceScreen(new PreferenceScreen(getPrefContext(), null));
    188             getPreferenceScreen().removeAll();
    189             return;
    190         }
    191 
    192         addPreferencesFromResource(R.xml.apn_settings);
    193     }
    194 
    195     @Override
    196     public void onResume() {
    197         super.onResume();
    198 
    199         if (mUnavailable) {
    200             return;
    201         }
    202 
    203         getActivity().registerReceiver(mMobileStateReceiver, mMobileStateFilter);
    204 
    205         if (!mRestoreDefaultApnMode) {
    206             fillList();
    207         }
    208     }
    209 
    210     @Override
    211     public void onPause() {
    212         super.onPause();
    213 
    214         if (mUnavailable) {
    215             return;
    216         }
    217 
    218         getActivity().unregisterReceiver(mMobileStateReceiver);
    219     }
    220 
    221     @Override
    222     public void onDestroy() {
    223         super.onDestroy();
    224 
    225         if (mRestoreDefaultApnThread != null) {
    226             mRestoreDefaultApnThread.quit();
    227         }
    228     }
    229 
    230     @Override
    231     public EnforcedAdmin getRestrictionEnforcedAdmin() {
    232         final UserHandle user = UserHandle.of(mUserManager.getUserHandle());
    233         if (mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS, user)
    234                 && !mUserManager.hasBaseUserRestriction(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS,
    235                         user)) {
    236             return EnforcedAdmin.MULTIPLE_ENFORCED_ADMIN;
    237         }
    238         return null;
    239     }
    240 
    241     private void fillList() {
    242         final TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
    243         final String mccmnc = mSubscriptionInfo == null ? ""
    244             : tm.getSimOperator(mSubscriptionInfo.getSubscriptionId());
    245         Log.d(TAG, "mccmnc = " + mccmnc);
    246         StringBuilder where = new StringBuilder("numeric=\"" + mccmnc +
    247                 "\" AND NOT (type='ia' AND (apn=\"\" OR apn IS NULL)) AND user_visible!=0");
    248 
    249         if (mHideImsApn) {
    250             where.append(" AND NOT (type='ims')");
    251         }
    252 
    253         Cursor cursor = getContentResolver().query(Telephony.Carriers.CONTENT_URI, new String[] {
    254                 "_id", "name", "apn", "type", "mvno_type", "mvno_match_data"}, where.toString(),
    255                 null, Telephony.Carriers.DEFAULT_SORT_ORDER);
    256 
    257         if (cursor != null) {
    258             IccRecords r = null;
    259             if (mUiccController != null && mSubscriptionInfo != null) {
    260                 r = mUiccController.getIccRecords(SubscriptionManager.getPhoneId(
    261                         mSubscriptionInfo.getSubscriptionId()), UiccController.APP_FAM_3GPP);
    262             }
    263             PreferenceGroup apnList = (PreferenceGroup) findPreference("apn_list");
    264             apnList.removeAll();
    265 
    266             ArrayList<ApnPreference> mnoApnList = new ArrayList<ApnPreference>();
    267             ArrayList<ApnPreference> mvnoApnList = new ArrayList<ApnPreference>();
    268             ArrayList<ApnPreference> mnoMmsApnList = new ArrayList<ApnPreference>();
    269             ArrayList<ApnPreference> mvnoMmsApnList = new ArrayList<ApnPreference>();
    270 
    271             mSelectedKey = getSelectedApnKey();
    272             cursor.moveToFirst();
    273             while (!cursor.isAfterLast()) {
    274                 String name = cursor.getString(NAME_INDEX);
    275                 String apn = cursor.getString(APN_INDEX);
    276                 String key = cursor.getString(ID_INDEX);
    277                 String type = cursor.getString(TYPES_INDEX);
    278                 String mvnoType = cursor.getString(MVNO_TYPE_INDEX);
    279                 String mvnoMatchData = cursor.getString(MVNO_MATCH_DATA_INDEX);
    280 
    281                 ApnPreference pref = new ApnPreference(getPrefContext());
    282 
    283                 pref.setKey(key);
    284                 pref.setTitle(name);
    285                 pref.setSummary(apn);
    286                 pref.setPersistent(false);
    287                 pref.setOnPreferenceChangeListener(this);
    288 
    289                 boolean selectable = ((type == null) || !type.equals("mms"));
    290                 pref.setSelectable(selectable);
    291                 if (selectable) {
    292                     if ((mSelectedKey != null) && mSelectedKey.equals(key)) {
    293                         pref.setChecked();
    294                     }
    295                     addApnToList(pref, mnoApnList, mvnoApnList, r, mvnoType, mvnoMatchData);
    296                 } else {
    297                     addApnToList(pref, mnoMmsApnList, mvnoMmsApnList, r, mvnoType, mvnoMatchData);
    298                 }
    299                 cursor.moveToNext();
    300             }
    301             cursor.close();
    302 
    303             if (!mvnoApnList.isEmpty()) {
    304                 mnoApnList = mvnoApnList;
    305                 mnoMmsApnList = mvnoMmsApnList;
    306 
    307                 // Also save the mvno info
    308             }
    309 
    310             for (Preference preference : mnoApnList) {
    311                 apnList.addPreference(preference);
    312             }
    313             for (Preference preference : mnoMmsApnList) {
    314                 apnList.addPreference(preference);
    315             }
    316         }
    317     }
    318 
    319     private void addApnToList(ApnPreference pref, ArrayList<ApnPreference> mnoList,
    320                               ArrayList<ApnPreference> mvnoList, IccRecords r, String mvnoType,
    321                               String mvnoMatchData) {
    322         if (r != null && !TextUtils.isEmpty(mvnoType) && !TextUtils.isEmpty(mvnoMatchData)) {
    323             if (ApnSetting.mvnoMatches(r, mvnoType, mvnoMatchData)) {
    324                 mvnoList.add(pref);
    325                 // Since adding to mvno list, save mvno info
    326                 mMvnoType = mvnoType;
    327                 mMvnoMatchData = mvnoMatchData;
    328             }
    329         } else {
    330             mnoList.add(pref);
    331         }
    332     }
    333 
    334     @Override
    335     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    336         if (!mUnavailable) {
    337             if (mAllowAddingApns) {
    338                 menu.add(0, MENU_NEW, 0,
    339                         getResources().getString(R.string.menu_new))
    340                         .setIcon(android.R.drawable.ic_menu_add)
    341                         .setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
    342             }
    343             menu.add(0, MENU_RESTORE, 0,
    344                     getResources().getString(R.string.menu_restore))
    345                     .setIcon(android.R.drawable.ic_menu_upload);
    346         }
    347 
    348         super.onCreateOptionsMenu(menu, inflater);
    349     }
    350 
    351     @Override
    352     public boolean onOptionsItemSelected(MenuItem item) {
    353         switch (item.getItemId()) {
    354         case MENU_NEW:
    355             addNewApn();
    356             return true;
    357 
    358         case MENU_RESTORE:
    359             restoreDefaultApn();
    360             return true;
    361         }
    362         return super.onOptionsItemSelected(item);
    363     }
    364 
    365     private void addNewApn() {
    366         Intent intent = new Intent(Intent.ACTION_INSERT, Telephony.Carriers.CONTENT_URI);
    367         int subId = mSubscriptionInfo != null ? mSubscriptionInfo.getSubscriptionId()
    368                 : SubscriptionManager.INVALID_SUBSCRIPTION_ID;
    369         intent.putExtra(SUB_ID, subId);
    370         if (!TextUtils.isEmpty(mMvnoType) && !TextUtils.isEmpty(mMvnoMatchData)) {
    371             intent.putExtra(MVNO_TYPE, mMvnoType);
    372             intent.putExtra(MVNO_MATCH_DATA, mMvnoMatchData);
    373         }
    374         startActivity(intent);
    375     }
    376 
    377     @Override
    378     public boolean onPreferenceTreeClick(Preference preference) {
    379         int pos = Integer.parseInt(preference.getKey());
    380         Uri url = ContentUris.withAppendedId(Telephony.Carriers.CONTENT_URI, pos);
    381         startActivity(new Intent(Intent.ACTION_EDIT, url));
    382         return true;
    383     }
    384 
    385     public boolean onPreferenceChange(Preference preference, Object newValue) {
    386         Log.d(TAG, "onPreferenceChange(): Preference - " + preference
    387                 + ", newValue - " + newValue + ", newValue type - "
    388                 + newValue.getClass());
    389         if (newValue instanceof String) {
    390             setSelectedApnKey((String) newValue);
    391         }
    392 
    393         return true;
    394     }
    395 
    396     private void setSelectedApnKey(String key) {
    397         mSelectedKey = key;
    398         ContentResolver resolver = getContentResolver();
    399 
    400         ContentValues values = new ContentValues();
    401         values.put(APN_ID, mSelectedKey);
    402         resolver.update(PREFERAPN_URI, values, null, null);
    403     }
    404 
    405     private String getSelectedApnKey() {
    406         String key = null;
    407 
    408         Cursor cursor = getContentResolver().query(PREFERAPN_URI, new String[] {"_id"},
    409                 null, null, Telephony.Carriers.DEFAULT_SORT_ORDER);
    410         if (cursor.getCount() > 0) {
    411             cursor.moveToFirst();
    412             key = cursor.getString(ID_INDEX);
    413         }
    414         cursor.close();
    415         return key;
    416     }
    417 
    418     private boolean restoreDefaultApn() {
    419         showDialog(DIALOG_RESTORE_DEFAULTAPN);
    420         mRestoreDefaultApnMode = true;
    421 
    422         if (mRestoreApnUiHandler == null) {
    423             mRestoreApnUiHandler = new RestoreApnUiHandler();
    424         }
    425 
    426         if (mRestoreApnProcessHandler == null ||
    427             mRestoreDefaultApnThread == null) {
    428             mRestoreDefaultApnThread = new HandlerThread(
    429                     "Restore default APN Handler: Process Thread");
    430             mRestoreDefaultApnThread.start();
    431             mRestoreApnProcessHandler = new RestoreApnProcessHandler(
    432                     mRestoreDefaultApnThread.getLooper(), mRestoreApnUiHandler);
    433         }
    434 
    435         mRestoreApnProcessHandler
    436                 .sendEmptyMessage(EVENT_RESTORE_DEFAULTAPN_START);
    437         return true;
    438     }
    439 
    440     private class RestoreApnUiHandler extends Handler {
    441         @Override
    442         public void handleMessage(Message msg) {
    443             switch (msg.what) {
    444                 case EVENT_RESTORE_DEFAULTAPN_COMPLETE:
    445                     Activity activity = getActivity();
    446                     if (activity == null) {
    447                         mRestoreDefaultApnMode = false;
    448                         return;
    449                     }
    450                     fillList();
    451                     getPreferenceScreen().setEnabled(true);
    452                     mRestoreDefaultApnMode = false;
    453                     removeDialog(DIALOG_RESTORE_DEFAULTAPN);
    454                     Toast.makeText(
    455                         activity,
    456                         getResources().getString(
    457                                 R.string.restore_default_apn_completed),
    458                         Toast.LENGTH_LONG).show();
    459                     break;
    460             }
    461         }
    462     }
    463 
    464     private class RestoreApnProcessHandler extends Handler {
    465         private Handler mRestoreApnUiHandler;
    466 
    467         public RestoreApnProcessHandler(Looper looper, Handler restoreApnUiHandler) {
    468             super(looper);
    469             this.mRestoreApnUiHandler = restoreApnUiHandler;
    470         }
    471 
    472         @Override
    473         public void handleMessage(Message msg) {
    474             switch (msg.what) {
    475                 case EVENT_RESTORE_DEFAULTAPN_START:
    476                     ContentResolver resolver = getContentResolver();
    477                     resolver.delete(DEFAULTAPN_URI, null, null);
    478                     mRestoreApnUiHandler
    479                         .sendEmptyMessage(EVENT_RESTORE_DEFAULTAPN_COMPLETE);
    480                     break;
    481             }
    482         }
    483     }
    484 
    485     @Override
    486     public Dialog onCreateDialog(int id) {
    487         if (id == DIALOG_RESTORE_DEFAULTAPN) {
    488             ProgressDialog dialog = new ProgressDialog(getActivity()) {
    489                 public boolean onTouchEvent(MotionEvent event) {
    490                     return true;
    491                 }
    492             };
    493             dialog.setMessage(getResources().getString(R.string.restore_default_apn));
    494             dialog.setCancelable(false);
    495             return dialog;
    496         }
    497         return null;
    498     }
    499 }
    500