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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
      5  * except in compliance with the License. You may obtain a copy of the License at
      6  *
      7  *      http://www.apache.org/licenses/LICENSE-2.0
      8  *
      9  * Unless required by applicable law or agreed to in writing, software distributed under the
     10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     11  * KIND, either express or implied. See the License for the specific language governing
     12  * permissions and limitations under the License.
     13  */
     14 
     15 package com.android.settings.datausage;
     16 
     17 import android.app.Activity;
     18 import android.content.ComponentName;
     19 import android.content.Context;
     20 import android.content.Intent;
     21 import android.net.ConnectivityManager;
     22 import android.net.INetworkStatsSession;
     23 import android.net.NetworkTemplate;
     24 import android.net.TrafficStats;
     25 import android.os.Bundle;
     26 import android.os.RemoteException;
     27 import android.os.SystemProperties;
     28 import android.os.UserManager;
     29 import android.provider.SearchIndexableResource;
     30 import android.support.v7.preference.Preference;
     31 import android.support.v7.preference.PreferenceScreen;
     32 import android.telephony.SubscriptionInfo;
     33 import android.telephony.SubscriptionManager;
     34 import android.telephony.TelephonyManager;
     35 import android.text.BidiFormatter;
     36 import android.text.Spannable;
     37 import android.text.SpannableString;
     38 import android.text.TextUtils;
     39 import android.text.format.Formatter;
     40 import android.text.style.RelativeSizeSpan;
     41 import android.view.Menu;
     42 import android.view.MenuInflater;
     43 import android.view.MenuItem;
     44 import com.android.internal.logging.MetricsProto.MetricsEvent;
     45 import com.android.settings.R;
     46 import com.android.settings.SummaryPreference;
     47 import com.android.settings.Utils;
     48 import com.android.settings.dashboard.SummaryLoader;
     49 import com.android.settings.search.BaseSearchIndexProvider;
     50 import com.android.settings.search.Indexable;
     51 import com.android.settingslib.NetworkPolicyEditor;
     52 import com.android.settingslib.net.DataUsageController;
     53 
     54 import java.util.ArrayList;
     55 import java.util.List;
     56 
     57 import static android.net.ConnectivityManager.TYPE_ETHERNET;
     58 import static android.net.ConnectivityManager.TYPE_WIFI;
     59 
     60 public class DataUsageSummary extends DataUsageBase implements Indexable, DataUsageEditController {
     61 
     62     private static final String TAG = "DataUsageSummary";
     63     static final boolean LOGD = false;
     64 
     65     public static final boolean TEST_RADIOS = false;
     66     public static final String TEST_RADIOS_PROP = "test.radios";
     67 
     68     private static final String KEY_STATUS_HEADER = "status_header";
     69     private static final String KEY_LIMIT_SUMMARY = "limit_summary";
     70     private static final String KEY_RESTRICT_BACKGROUND = "restrict_background";
     71 
     72     private DataUsageController mDataUsageController;
     73     private DataUsageInfoController mDataInfoController;
     74     private SummaryPreference mSummaryPreference;
     75     private Preference mLimitPreference;
     76     private NetworkTemplate mDefaultTemplate;
     77     private int mDataUsageTemplate;
     78 
     79     @Override
     80     protected int getHelpResource() {
     81         return R.string.help_url_data_usage;
     82     }
     83 
     84     @Override
     85     public void onCreate(Bundle icicle) {
     86         super.onCreate(icicle);
     87 
     88         boolean hasMobileData = hasMobileData(getContext());
     89         mDataUsageController = new DataUsageController(getContext());
     90         mDataInfoController = new DataUsageInfoController();
     91         addPreferencesFromResource(R.xml.data_usage);
     92 
     93         int defaultSubId = getDefaultSubscriptionId(getContext());
     94         if (defaultSubId == SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
     95             hasMobileData = false;
     96         }
     97         mDefaultTemplate = getDefaultTemplate(getContext(), defaultSubId);
     98         mSummaryPreference = (SummaryPreference) findPreference(KEY_STATUS_HEADER);
     99 
    100         if (!hasMobileData || !isAdmin()) {
    101             removePreference(KEY_RESTRICT_BACKGROUND);
    102         }
    103         if (hasMobileData) {
    104             mLimitPreference = findPreference(KEY_LIMIT_SUMMARY);
    105             List<SubscriptionInfo> subscriptions =
    106                     services.mSubscriptionManager.getActiveSubscriptionInfoList();
    107             if (subscriptions == null || subscriptions.size() == 0) {
    108                 addMobileSection(defaultSubId);
    109             }
    110             for (int i = 0; subscriptions != null && i < subscriptions.size(); i++) {
    111                 addMobileSection(subscriptions.get(i).getSubscriptionId());
    112             }
    113             mSummaryPreference.setSelectable(true);
    114         } else {
    115             removePreference(KEY_LIMIT_SUMMARY);
    116             mSummaryPreference.setSelectable(false);
    117         }
    118         boolean hasWifiRadio = hasWifiRadio(getContext());
    119         if (hasWifiRadio) {
    120             addWifiSection();
    121         }
    122         if (hasEthernet(getContext())) {
    123             addEthernetSection();
    124         }
    125         mDataUsageTemplate = hasMobileData ? R.string.cell_data_template
    126                 : hasWifiRadio ? R.string.wifi_data_template
    127                 : R.string.ethernet_data_template;
    128 
    129         setHasOptionsMenu(true);
    130     }
    131 
    132     @Override
    133     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    134         if (UserManager.get(getContext()).isAdminUser()) {
    135             inflater.inflate(R.menu.data_usage, menu);
    136         }
    137         super.onCreateOptionsMenu(menu, inflater);
    138     }
    139 
    140     @Override
    141     public boolean onOptionsItemSelected(MenuItem item) {
    142         switch (item.getItemId()) {
    143             case R.id.data_usage_menu_cellular_networks: {
    144                 final Intent intent = new Intent(Intent.ACTION_MAIN);
    145                 intent.setComponent(new ComponentName("com.android.phone",
    146                         "com.android.phone.MobileNetworkSettings"));
    147                 startActivity(intent);
    148                 return true;
    149             }
    150         }
    151         return false;
    152     }
    153 
    154     @Override
    155     public boolean onPreferenceTreeClick(Preference preference) {
    156         if (preference == findPreference(KEY_STATUS_HEADER)) {
    157             BillingCycleSettings.BytesEditorFragment.show(this, false);
    158             return false;
    159         }
    160         return super.onPreferenceTreeClick(preference);
    161     }
    162 
    163     private void addMobileSection(int subId) {
    164         TemplatePreferenceCategory category = (TemplatePreferenceCategory)
    165                 inflatePreferences(R.xml.data_usage_cellular);
    166         category.setTemplate(getNetworkTemplate(subId), subId, services);
    167         category.pushTemplates(services);
    168     }
    169 
    170     private void addWifiSection() {
    171         TemplatePreferenceCategory category = (TemplatePreferenceCategory)
    172                 inflatePreferences(R.xml.data_usage_wifi);
    173         category.setTemplate(NetworkTemplate.buildTemplateWifiWildcard(), 0, services);
    174     }
    175 
    176     private void addEthernetSection() {
    177         TemplatePreferenceCategory category = (TemplatePreferenceCategory)
    178                 inflatePreferences(R.xml.data_usage_ethernet);
    179         category.setTemplate(NetworkTemplate.buildTemplateEthernet(), 0, services);
    180     }
    181 
    182     private Preference inflatePreferences(int resId) {
    183         PreferenceScreen rootPreferences = getPreferenceManager().inflateFromResource(
    184                 getPrefContext(), resId, null);
    185         Preference pref = rootPreferences.getPreference(0);
    186         rootPreferences.removeAll();
    187 
    188         PreferenceScreen screen = getPreferenceScreen();
    189         pref.setOrder(screen.getPreferenceCount());
    190         screen.addPreference(pref);
    191 
    192         return pref;
    193     }
    194 
    195     private NetworkTemplate getNetworkTemplate(int subscriptionId) {
    196         NetworkTemplate mobileAll = NetworkTemplate.buildTemplateMobileAll(
    197                 services.mTelephonyManager.getSubscriberId(subscriptionId));
    198         return NetworkTemplate.normalize(mobileAll,
    199                 services.mTelephonyManager.getMergedSubscriberIds());
    200     }
    201 
    202     @Override
    203     public void onResume() {
    204         super.onResume();
    205         updateState();
    206     }
    207 
    208     private static void verySmallSpanExcept(SpannableString s, CharSequence exception) {
    209         final float SIZE = 0.8f * 0.8f;
    210         final int FLAGS = Spannable.SPAN_INCLUSIVE_INCLUSIVE;
    211         final int exceptionStart = TextUtils.indexOf(s, exception);
    212         if (exceptionStart == -1) {
    213            s.setSpan(new RelativeSizeSpan(SIZE), 0, s.length(), FLAGS);
    214         } else {
    215             if (exceptionStart > 0) {
    216                 s.setSpan(new RelativeSizeSpan(SIZE), 0, exceptionStart, FLAGS);
    217             }
    218             final int exceptionEnd = exceptionStart + exception.length();
    219             if (exceptionEnd < s.length()) {
    220                 s.setSpan(new RelativeSizeSpan(SIZE), exceptionEnd, s.length(), FLAGS);
    221             }
    222         }
    223     }
    224 
    225     private static CharSequence formatTitle(Context context, String template, long usageLevel) {
    226         final SpannableString amountTemplate = new SpannableString(
    227                 context.getString(com.android.internal.R.string.fileSizeSuffix)
    228                 .replace("%1$s", "^1").replace("%2$s", "^2"));
    229         verySmallSpanExcept(amountTemplate, "^1");
    230         final Formatter.BytesResult usedResult = Formatter.formatBytes(context.getResources(),
    231                 usageLevel, Formatter.FLAG_SHORTER);
    232         final CharSequence formattedUsage = TextUtils.expandTemplate(amountTemplate,
    233                 usedResult.value, usedResult.units);
    234 
    235         final SpannableString fullTemplate = new SpannableString(template.replace("%1$s", "^1"));
    236         verySmallSpanExcept(fullTemplate, "^1");
    237         return TextUtils.expandTemplate(fullTemplate,
    238                 BidiFormatter.getInstance().unicodeWrap(formattedUsage));
    239     }
    240 
    241     private void updateState() {
    242         DataUsageController.DataUsageInfo info = mDataUsageController.getDataUsageInfo(
    243                 mDefaultTemplate);
    244         Context context = getContext();
    245 
    246         mDataInfoController.updateDataLimit(info,
    247                 services.mPolicyEditor.getPolicy(mDefaultTemplate));
    248 
    249         if (mSummaryPreference != null) {
    250             mSummaryPreference.setTitle(
    251                     formatTitle(context, getString(mDataUsageTemplate), info.usageLevel));
    252             long limit = mDataInfoController.getSummaryLimit(info);
    253             mSummaryPreference.setSummary(info.period);
    254 
    255             if (limit <= 0) {
    256                 mSummaryPreference.setChartEnabled(false);
    257             } else {
    258                 mSummaryPreference.setChartEnabled(true);
    259                 mSummaryPreference.setLabels(Formatter.formatFileSize(context, 0),
    260                         Formatter.formatFileSize(context, limit));
    261                 mSummaryPreference.setRatios(info.usageLevel / (float) limit, 0,
    262                         (limit - info.usageLevel) / (float) limit);
    263             }
    264         }
    265         if (mLimitPreference != null && (info.warningLevel > 0 || info.limitLevel > 0)) {
    266             String warning = Formatter.formatFileSize(context, info.warningLevel);
    267             String limit = Formatter.formatFileSize(context, info.limitLevel);
    268             mLimitPreference.setSummary(getString(info.limitLevel <= 0 ? R.string.cell_warning_only
    269                     : R.string.cell_warning_and_limit, warning, limit));
    270         } else if (mLimitPreference != null) {
    271             mLimitPreference.setSummary(null);
    272         }
    273 
    274         PreferenceScreen screen = getPreferenceScreen();
    275         for (int i = 1; i < screen.getPreferenceCount(); i++) {
    276             ((TemplatePreferenceCategory) screen.getPreference(i)).pushTemplates(services);
    277         }
    278     }
    279 
    280     @Override
    281     protected int getMetricsCategory() {
    282         return MetricsEvent.DATA_USAGE_SUMMARY;
    283     }
    284 
    285     @Override
    286     public NetworkPolicyEditor getNetworkPolicyEditor() {
    287         return services.mPolicyEditor;
    288     }
    289 
    290     @Override
    291     public NetworkTemplate getNetworkTemplate() {
    292         return mDefaultTemplate;
    293     }
    294 
    295     @Override
    296     public void updateDataUsage() {
    297         updateState();
    298     }
    299 
    300     /**
    301      * Test if device has an ethernet network connection.
    302      */
    303     public boolean hasEthernet(Context context) {
    304         if (TEST_RADIOS) {
    305             return SystemProperties.get(TEST_RADIOS_PROP).contains("ethernet");
    306         }
    307 
    308         final ConnectivityManager conn = ConnectivityManager.from(context);
    309         final boolean hasEthernet = conn.isNetworkSupported(TYPE_ETHERNET);
    310 
    311         final long ethernetBytes;
    312         try {
    313             INetworkStatsSession statsSession = services.mStatsService.openSession();
    314             if (statsSession != null) {
    315                 ethernetBytes = statsSession.getSummaryForNetwork(
    316                         NetworkTemplate.buildTemplateEthernet(), Long.MIN_VALUE, Long.MAX_VALUE)
    317                         .getTotalBytes();
    318                 TrafficStats.closeQuietly(statsSession);
    319             } else {
    320                 ethernetBytes = 0;
    321             }
    322         } catch (RemoteException e) {
    323             throw new RuntimeException(e);
    324         }
    325 
    326         // only show ethernet when both hardware present and traffic has occurred
    327         return hasEthernet && ethernetBytes > 0;
    328     }
    329 
    330     public static boolean hasMobileData(Context context) {
    331         return ConnectivityManager.from(context).isNetworkSupported(
    332                 ConnectivityManager.TYPE_MOBILE);
    333     }
    334 
    335     /**
    336      * Test if device has a Wi-Fi data radio.
    337      */
    338     public static boolean hasWifiRadio(Context context) {
    339         if (TEST_RADIOS) {
    340             return SystemProperties.get(TEST_RADIOS_PROP).contains("wifi");
    341         }
    342 
    343         final ConnectivityManager conn = ConnectivityManager.from(context);
    344         return conn.isNetworkSupported(TYPE_WIFI);
    345     }
    346 
    347     public static int getDefaultSubscriptionId(Context context) {
    348         SubscriptionManager subManager = SubscriptionManager.from(context);
    349         if (subManager == null) {
    350             return SubscriptionManager.INVALID_SUBSCRIPTION_ID;
    351         }
    352         SubscriptionInfo subscriptionInfo = subManager.getDefaultDataSubscriptionInfo();
    353         if (subscriptionInfo == null) {
    354             List<SubscriptionInfo> list = subManager.getAllSubscriptionInfoList();
    355             if (list.size() == 0) {
    356                 return SubscriptionManager.INVALID_SUBSCRIPTION_ID;
    357             }
    358             subscriptionInfo = list.get(0);
    359         }
    360         return subscriptionInfo.getSubscriptionId();
    361     }
    362 
    363     public static NetworkTemplate getDefaultTemplate(Context context, int defaultSubId) {
    364         if (hasMobileData(context) && defaultSubId != SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
    365             TelephonyManager telephonyManager = TelephonyManager.from(context);
    366             NetworkTemplate mobileAll = NetworkTemplate.buildTemplateMobileAll(
    367                     telephonyManager.getSubscriberId(defaultSubId));
    368             return NetworkTemplate.normalize(mobileAll,
    369                     telephonyManager.getMergedSubscriberIds());
    370         } else if (hasWifiRadio(context)) {
    371             return NetworkTemplate.buildTemplateWifiWildcard();
    372         } else {
    373             return NetworkTemplate.buildTemplateEthernet();
    374         }
    375     }
    376 
    377     private static class SummaryProvider
    378             implements SummaryLoader.SummaryProvider {
    379 
    380         private final Activity mActivity;
    381         private final SummaryLoader mSummaryLoader;
    382         private final DataUsageController mDataController;
    383 
    384         public SummaryProvider(Activity activity, SummaryLoader summaryLoader) {
    385             mActivity = activity;
    386             mSummaryLoader = summaryLoader;
    387             mDataController = new DataUsageController(activity);
    388         }
    389 
    390         @Override
    391         public void setListening(boolean listening) {
    392             if (listening) {
    393                 DataUsageController.DataUsageInfo info = mDataController.getDataUsageInfo();
    394                 String used;
    395                 if (info == null) {
    396                     used = Formatter.formatFileSize(mActivity, 0);
    397                 } else if (info.limitLevel <= 0) {
    398                     used = Formatter.formatFileSize(mActivity, info.usageLevel);
    399                 } else {
    400                     used = Utils.formatPercentage(info.usageLevel, info.limitLevel);
    401                 }
    402                 mSummaryLoader.setSummary(this,
    403                         mActivity.getString(R.string.data_usage_summary_format, used));
    404             }
    405         }
    406     }
    407 
    408     public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY
    409             = new SummaryLoader.SummaryProviderFactory() {
    410         @Override
    411         public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity,
    412                                                                    SummaryLoader summaryLoader) {
    413             return new SummaryProvider(activity, summaryLoader);
    414         }
    415     };
    416 
    417     /**
    418      * For search
    419      */
    420     public static final Indexable.SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
    421         new BaseSearchIndexProvider() {
    422 
    423             @Override
    424             public List<SearchIndexableResource> getXmlResourcesToIndex(Context context,
    425                     boolean enabled) {
    426                 ArrayList<SearchIndexableResource> resources = new ArrayList<>();
    427                 SearchIndexableResource resource = new SearchIndexableResource(context);
    428                 resource.xmlResId = R.xml.data_usage;
    429                 resources.add(resource);
    430 
    431                 if (hasMobileData(context)) {
    432                     resource = new SearchIndexableResource(context);
    433                     resource.xmlResId = R.xml.data_usage_cellular;
    434                     resources.add(resource);
    435                 }
    436                 if (hasWifiRadio(context)) {
    437                     resource = new SearchIndexableResource(context);
    438                     resource.xmlResId = R.xml.data_usage_wifi;
    439                     resources.add(resource);
    440                 }
    441                 return resources;
    442             }
    443 
    444             @Override
    445             public List<String> getNonIndexableKeys(Context context) {
    446                 ArrayList<String> keys = new ArrayList<>();
    447                 boolean hasMobileData = ConnectivityManager.from(context).isNetworkSupported(
    448                         ConnectivityManager.TYPE_MOBILE);
    449 
    450                 if (hasMobileData) {
    451                     keys.add(KEY_RESTRICT_BACKGROUND);
    452                 }
    453 
    454                 return keys;
    455             }
    456         };
    457 }
    458