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.nano.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     public 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             addPreferencesFromResource(R.xml.empty_settings);
188             return;
189         }
190 
191         addPreferencesFromResource(R.xml.apn_settings);
192     }
193 
194     @Override
onResume()195     public void onResume() {
196         super.onResume();
197 
198         if (mUnavailable) {
199             return;
200         }
201 
202         getActivity().registerReceiver(mMobileStateReceiver, mMobileStateFilter);
203 
204         if (!mRestoreDefaultApnMode) {
205             fillList();
206         }
207     }
208 
209     @Override
onPause()210     public void onPause() {
211         super.onPause();
212 
213         if (mUnavailable) {
214             return;
215         }
216 
217         getActivity().unregisterReceiver(mMobileStateReceiver);
218     }
219 
220     @Override
onDestroy()221     public void onDestroy() {
222         super.onDestroy();
223 
224         if (mRestoreDefaultApnThread != null) {
225             mRestoreDefaultApnThread.quit();
226         }
227     }
228 
229     @Override
getRestrictionEnforcedAdmin()230     public EnforcedAdmin getRestrictionEnforcedAdmin() {
231         final UserHandle user = UserHandle.of(mUserManager.getUserHandle());
232         if (mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS, user)
233                 && !mUserManager.hasBaseUserRestriction(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS,
234                         user)) {
235             return EnforcedAdmin.MULTIPLE_ENFORCED_ADMIN;
236         }
237         return null;
238     }
239 
fillList()240     private void fillList() {
241         final TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
242         final int subId = mSubscriptionInfo != null ? mSubscriptionInfo.getSubscriptionId()
243                 : SubscriptionManager.INVALID_SUBSCRIPTION_ID;
244         final String mccmnc = mSubscriptionInfo == null ? "" : tm.getSimOperator(subId);
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(
261                         SubscriptionManager.getPhoneId(subId), 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                 pref.setSubId(subId);
289 
290                 boolean selectable = ((type == null) || !type.equals("mms"));
291                 pref.setSelectable(selectable);
292                 if (selectable) {
293                     if ((mSelectedKey != null) && mSelectedKey.equals(key)) {
294                         pref.setChecked();
295                     }
296                     addApnToList(pref, mnoApnList, mvnoApnList, r, mvnoType, mvnoMatchData);
297                 } else {
298                     addApnToList(pref, mnoMmsApnList, mvnoMmsApnList, r, mvnoType, mvnoMatchData);
299                 }
300                 cursor.moveToNext();
301             }
302             cursor.close();
303 
304             if (!mvnoApnList.isEmpty()) {
305                 mnoApnList = mvnoApnList;
306                 mnoMmsApnList = mvnoMmsApnList;
307 
308                 // Also save the mvno info
309             }
310 
311             for (Preference preference : mnoApnList) {
312                 apnList.addPreference(preference);
313             }
314             for (Preference preference : mnoMmsApnList) {
315                 apnList.addPreference(preference);
316             }
317         }
318     }
319 
addApnToList(ApnPreference pref, ArrayList<ApnPreference> mnoList, ArrayList<ApnPreference> mvnoList, IccRecords r, String mvnoType, String mvnoMatchData)320     private void addApnToList(ApnPreference pref, ArrayList<ApnPreference> mnoList,
321                               ArrayList<ApnPreference> mvnoList, IccRecords r, String mvnoType,
322                               String mvnoMatchData) {
323         if (r != null && !TextUtils.isEmpty(mvnoType) && !TextUtils.isEmpty(mvnoMatchData)) {
324             if (ApnSetting.mvnoMatches(r, mvnoType, mvnoMatchData)) {
325                 mvnoList.add(pref);
326                 // Since adding to mvno list, save mvno info
327                 mMvnoType = mvnoType;
328                 mMvnoMatchData = mvnoMatchData;
329             }
330         } else {
331             mnoList.add(pref);
332         }
333     }
334 
335     @Override
onCreateOptionsMenu(Menu menu, MenuInflater inflater)336     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
337         if (!mUnavailable) {
338             if (mAllowAddingApns) {
339                 menu.add(0, MENU_NEW, 0,
340                         getResources().getString(R.string.menu_new))
341                         .setIcon(R.drawable.ic_menu_add_white)
342                         .setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
343             }
344             menu.add(0, MENU_RESTORE, 0,
345                     getResources().getString(R.string.menu_restore))
346                     .setIcon(android.R.drawable.ic_menu_upload);
347         }
348 
349         super.onCreateOptionsMenu(menu, inflater);
350     }
351 
352     @Override
onOptionsItemSelected(MenuItem item)353     public boolean onOptionsItemSelected(MenuItem item) {
354         switch (item.getItemId()) {
355         case MENU_NEW:
356             addNewApn();
357             return true;
358 
359         case MENU_RESTORE:
360             restoreDefaultApn();
361             return true;
362         }
363         return super.onOptionsItemSelected(item);
364     }
365 
addNewApn()366     private void addNewApn() {
367         Intent intent = new Intent(Intent.ACTION_INSERT, Telephony.Carriers.CONTENT_URI);
368         int subId = mSubscriptionInfo != null ? mSubscriptionInfo.getSubscriptionId()
369                 : SubscriptionManager.INVALID_SUBSCRIPTION_ID;
370         intent.putExtra(SUB_ID, subId);
371         if (!TextUtils.isEmpty(mMvnoType) && !TextUtils.isEmpty(mMvnoMatchData)) {
372             intent.putExtra(MVNO_TYPE, mMvnoType);
373             intent.putExtra(MVNO_MATCH_DATA, mMvnoMatchData);
374         }
375         startActivity(intent);
376     }
377 
378     @Override
onPreferenceTreeClick(Preference preference)379     public boolean onPreferenceTreeClick(Preference preference) {
380         int pos = Integer.parseInt(preference.getKey());
381         Uri url = ContentUris.withAppendedId(Telephony.Carriers.CONTENT_URI, pos);
382         startActivity(new Intent(Intent.ACTION_EDIT, url));
383         return true;
384     }
385 
onPreferenceChange(Preference preference, Object newValue)386     public boolean onPreferenceChange(Preference preference, Object newValue) {
387         Log.d(TAG, "onPreferenceChange(): Preference - " + preference
388                 + ", newValue - " + newValue + ", newValue type - "
389                 + newValue.getClass());
390         if (newValue instanceof String) {
391             setSelectedApnKey((String) newValue);
392         }
393 
394         return true;
395     }
396 
setSelectedApnKey(String key)397     private void setSelectedApnKey(String key) {
398         mSelectedKey = key;
399         ContentResolver resolver = getContentResolver();
400 
401         ContentValues values = new ContentValues();
402         values.put(APN_ID, mSelectedKey);
403         resolver.update(getUriForCurrSubId(PREFERAPN_URI), values, null, null);
404     }
405 
getSelectedApnKey()406     private String getSelectedApnKey() {
407         String key = null;
408 
409         Cursor cursor = getContentResolver().query(getUriForCurrSubId(PREFERAPN_URI),
410                 new String[] {"_id"}, null, null, Telephony.Carriers.DEFAULT_SORT_ORDER);
411         if (cursor.getCount() > 0) {
412             cursor.moveToFirst();
413             key = cursor.getString(ID_INDEX);
414         }
415         cursor.close();
416         return key;
417     }
418 
restoreDefaultApn()419     private boolean restoreDefaultApn() {
420         showDialog(DIALOG_RESTORE_DEFAULTAPN);
421         mRestoreDefaultApnMode = true;
422 
423         if (mRestoreApnUiHandler == null) {
424             mRestoreApnUiHandler = new RestoreApnUiHandler();
425         }
426 
427         if (mRestoreApnProcessHandler == null ||
428             mRestoreDefaultApnThread == null) {
429             mRestoreDefaultApnThread = new HandlerThread(
430                     "Restore default APN Handler: Process Thread");
431             mRestoreDefaultApnThread.start();
432             mRestoreApnProcessHandler = new RestoreApnProcessHandler(
433                     mRestoreDefaultApnThread.getLooper(), mRestoreApnUiHandler);
434         }
435 
436         mRestoreApnProcessHandler
437                 .sendEmptyMessage(EVENT_RESTORE_DEFAULTAPN_START);
438         return true;
439     }
440 
441     // Append subId to the Uri
getUriForCurrSubId(Uri uri)442     private Uri getUriForCurrSubId(Uri uri) {
443         int subId = mSubscriptionInfo != null ? mSubscriptionInfo.getSubscriptionId()
444                 : SubscriptionManager.INVALID_SUBSCRIPTION_ID;
445         if (SubscriptionManager.isValidSubscriptionId(subId)) {
446             return Uri.withAppendedPath(uri, "subId/" + String.valueOf(subId));
447         } else {
448             return uri;
449         }
450     }
451 
452     private class RestoreApnUiHandler extends Handler {
453         @Override
handleMessage(Message msg)454         public void handleMessage(Message msg) {
455             switch (msg.what) {
456                 case EVENT_RESTORE_DEFAULTAPN_COMPLETE:
457                     Activity activity = getActivity();
458                     if (activity == null) {
459                         mRestoreDefaultApnMode = false;
460                         return;
461                     }
462                     fillList();
463                     getPreferenceScreen().setEnabled(true);
464                     mRestoreDefaultApnMode = false;
465                     removeDialog(DIALOG_RESTORE_DEFAULTAPN);
466                     Toast.makeText(
467                         activity,
468                         getResources().getString(
469                                 R.string.restore_default_apn_completed),
470                         Toast.LENGTH_LONG).show();
471                     break;
472             }
473         }
474     }
475 
476     private class RestoreApnProcessHandler extends Handler {
477         private Handler mRestoreApnUiHandler;
478 
RestoreApnProcessHandler(Looper looper, Handler restoreApnUiHandler)479         public RestoreApnProcessHandler(Looper looper, Handler restoreApnUiHandler) {
480             super(looper);
481             this.mRestoreApnUiHandler = restoreApnUiHandler;
482         }
483 
484         @Override
handleMessage(Message msg)485         public void handleMessage(Message msg) {
486             switch (msg.what) {
487                 case EVENT_RESTORE_DEFAULTAPN_START:
488                     ContentResolver resolver = getContentResolver();
489                     resolver.delete(getUriForCurrSubId(DEFAULTAPN_URI), null, null);
490                     mRestoreApnUiHandler
491                         .sendEmptyMessage(EVENT_RESTORE_DEFAULTAPN_COMPLETE);
492                     break;
493             }
494         }
495     }
496 
497     @Override
onCreateDialog(int id)498     public Dialog onCreateDialog(int id) {
499         if (id == DIALOG_RESTORE_DEFAULTAPN) {
500             ProgressDialog dialog = new ProgressDialog(getActivity()) {
501                 public boolean onTouchEvent(MotionEvent event) {
502                     return true;
503                 }
504             };
505             dialog.setMessage(getResources().getString(R.string.restore_default_apn));
506             dialog.setCancelable(false);
507             return dialog;
508         }
509         return null;
510     }
511 
512     @Override
getDialogMetricsCategory(int dialogId)513     public int getDialogMetricsCategory(int dialogId) {
514         if (dialogId == DIALOG_RESTORE_DEFAULTAPN) {
515             return MetricsEvent.DIALOG_APN_RESTORE_DEFAULT;
516         }
517         return 0;
518     }
519 }
520