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 
ApnSettings()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 
getMobileDataState(Intent intent)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
getMetricsCategory()152     protected int getMetricsCategory() {
153         return MetricsEvent.APN;
154     }
155 
156     @Override
onCreate(Bundle icicle)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
onActivityCreated(Bundle savedInstanceState)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
onResume()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
onPause()211     public void onPause() {
212         super.onPause();
213 
214         if (mUnavailable) {
215             return;
216         }
217 
218         getActivity().unregisterReceiver(mMobileStateReceiver);
219     }
220 
221     @Override
onDestroy()222     public void onDestroy() {
223         super.onDestroy();
224 
225         if (mRestoreDefaultApnThread != null) {
226             mRestoreDefaultApnThread.quit();
227         }
228     }
229 
230     @Override
getRestrictionEnforcedAdmin()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 
fillList()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 
addApnToList(ApnPreference pref, ArrayList<ApnPreference> mnoList, ArrayList<ApnPreference> mvnoList, IccRecords r, String mvnoType, String mvnoMatchData)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
onCreateOptionsMenu(Menu menu, MenuInflater inflater)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
onOptionsItemSelected(MenuItem item)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 
addNewApn()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
onPreferenceTreeClick(Preference preference)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 
onPreferenceChange(Preference preference, Object newValue)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 
setSelectedApnKey(String key)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 
getSelectedApnKey()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 
restoreDefaultApn()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
handleMessage(Message msg)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 
RestoreApnProcessHandler(Looper looper, Handler restoreApnUiHandler)467         public RestoreApnProcessHandler(Looper looper, Handler restoreApnUiHandler) {
468             super(looper);
469             this.mRestoreApnUiHandler = restoreApnUiHandler;
470         }
471 
472         @Override
handleMessage(Message msg)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
onCreateDialog(int id)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