src/com/android/settings/DeviceInfoSettings.java - LeafOS-Project/android_packages_apps_Settings - Gitiles

 /*
  * Copyright (C) 2008 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package com.android.settings;

 import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.PersistableBundle;
 import android.os.SELinux;
 import android.os.SystemClock;
 import android.os.SystemProperties;
 import android.os.UserManager;
 import android.provider.SearchIndexableResource;
 import android.provider.Settings;
 import android.support.v7.preference.Preference;
 import android.support.v7.preference.PreferenceGroup;
 import android.telephony.CarrierConfigManager;
 import android.text.TextUtils;
 import android.text.format.DateFormat;
 import android.util.Log;
 import android.widget.Toast;

 import com.android.internal.logging.MetricsLogger;
 import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.search.Index;
 import com.android.settings.search.Indexable;

 import java.io.BufferedReader;
 import java.io.FileReader;
 import java.io.IOException;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Date;
 import java.util.List;
 import java.util.Locale;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;

 public class DeviceInfoSettings extends SettingsPreferenceFragment implements Indexable {

     private static final String LOG_TAG = "DeviceInfoSettings";
     private static final String FILENAME_PROC_VERSION = "/proc/version";
     private static final String FILENAME_MSV = "/sys/board_properties/soc/msv";

     private static final String KEY_MANUAL = "manual";
     private static final String KEY_REGULATORY_INFO = "regulatory_info";
     private static final String KEY_SYSTEM_UPDATE_SETTINGS = "system_update_settings";
     private static final String PROPERTY_URL_SAFETYLEGAL = "ro.url.safetylegal";
     private static final String PROPERTY_SELINUX_STATUS = "ro.build.selinux";
     private static final String KEY_KERNEL_VERSION = "kernel_version";
     private static final String KEY_BUILD_NUMBER = "build_number";
     private static final String KEY_DEVICE_MODEL = "device_model";
     private static final String KEY_SELINUX_STATUS = "selinux_status";
     private static final String KEY_BASEBAND_VERSION = "baseband_version";
     private static final String KEY_FIRMWARE_VERSION = "firmware_version";
     private static final String KEY_SECURITY_PATCH = "security_patch";
     private static final String KEY_UPDATE_SETTING = "additional_system_update_settings";
     private static final String KEY_EQUIPMENT_ID = "fcc_equipment_id";
     private static final String PROPERTY_EQUIPMENT_ID = "ro.ril.fccid";
     private static final String KEY_DEVICE_FEEDBACK = "device_feedback";
     private static final String KEY_SAFETY_LEGAL = "safetylegal";

     static final int TAPS_TO_BE_A_DEVELOPER = 7;

     long[] mHits = new long[3];
     int mDevHitCountdown;
     Toast mDevHitToast;

     private UserManager mUm;

     @Override
     protected int getMetricsCategory() {
         return MetricsLogger.DEVICEINFO;
     }

     @Override
     protected int getHelpResource() {
         return R.string.help_uri_about;
     }

     @Override
     public void onCreate(Bundle icicle) {
         super.onCreate(icicle);
         mUm = UserManager.get(getActivity());

         addPreferencesFromResource(R.xml.device_info_settings);

         setStringSummary(KEY_FIRMWARE_VERSION, Build.VERSION.RELEASE);
         findPreference(KEY_FIRMWARE_VERSION).setEnabled(true);
         String patch = Build.VERSION.SECURITY_PATCH;
         if (!"".equals(patch)) {
             try {
                 SimpleDateFormat template = new SimpleDateFormat("yyyy-MM-dd");
                 Date patchDate = template.parse(patch);
                 String format = DateFormat.getBestDateTimePattern(Locale.getDefault(), "dMMMMyyyy");
                 patch = DateFormat.format(format, patchDate).toString();
             } catch (ParseException e) {
                 // broken parse; fall through and use the raw string
             }
             setStringSummary(KEY_SECURITY_PATCH, patch);
         } else {
             getPreferenceScreen().removePreference(findPreference(KEY_SECURITY_PATCH));

         }
         setValueSummary(KEY_BASEBAND_VERSION, "gsm.version.baseband");
         setStringSummary(KEY_DEVICE_MODEL, Build.MODEL + getMsvSuffix());
         setValueSummary(KEY_EQUIPMENT_ID, PROPERTY_EQUIPMENT_ID);
         setStringSummary(KEY_DEVICE_MODEL, Build.MODEL);
         setStringSummary(KEY_BUILD_NUMBER, Build.DISPLAY);
         findPreference(KEY_BUILD_NUMBER).setEnabled(true);
         findPreference(KEY_KERNEL_VERSION).setSummary(getFormattedKernelVersion());

         if (!SELinux.isSELinuxEnabled()) {
             String status = getResources().getString(R.string.selinux_status_disabled);
             setStringSummary(KEY_SELINUX_STATUS, status);
         } else if (!SELinux.isSELinuxEnforced()) {
             String status = getResources().getString(R.string.selinux_status_permissive);
             setStringSummary(KEY_SELINUX_STATUS, status);
         }

         // Remove selinux information if property is not present
         removePreferenceIfPropertyMissing(getPreferenceScreen(), KEY_SELINUX_STATUS,
                 PROPERTY_SELINUX_STATUS);

         // Remove Safety information preference if PROPERTY_URL_SAFETYLEGAL is not set
         removePreferenceIfPropertyMissing(getPreferenceScreen(), KEY_SAFETY_LEGAL,
                 PROPERTY_URL_SAFETYLEGAL);

         // Remove Equipment id preference if FCC ID is not set by RIL
         removePreferenceIfPropertyMissing(getPreferenceScreen(), KEY_EQUIPMENT_ID,
                 PROPERTY_EQUIPMENT_ID);

         // Remove Baseband version if wifi-only device
         if (Utils.isWifiOnly(getActivity())) {
             getPreferenceScreen().removePreference(findPreference(KEY_BASEBAND_VERSION));
         }

         // Dont show feedback option if there is no reporter.
         if (TextUtils.isEmpty(getFeedbackReporterPackage(getActivity()))) {
             getPreferenceScreen().removePreference(findPreference(KEY_DEVICE_FEEDBACK));
         }

         /*
          * Settings is a generic app and should not contain any device-specific
          * info.
          */
         final Activity act = getActivity();

         // These are contained by the root preference screen
         PreferenceGroup parentPreference = getPreferenceScreen();

         if (mUm.isAdminUser()) {
             Utils.updatePreferenceToSpecificActivityOrRemove(act, parentPreference,
                     KEY_SYSTEM_UPDATE_SETTINGS,
                     Utils.UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY);
         } else {
             // Remove for secondary users
             removePreference(KEY_SYSTEM_UPDATE_SETTINGS);
         }

         // Read platform settings for additional system update setting
         removePreferenceIfBoolFalse(KEY_UPDATE_SETTING,
                 R.bool.config_additional_system_update_setting_enable);

         // Remove manual entry if none present.
         removePreferenceIfBoolFalse(KEY_MANUAL, R.bool.config_show_manual);

         // Remove regulatory information if none present.
         final Intent intent = new Intent(Settings.ACTION_SHOW_REGULATORY_INFO);
         if (getPackageManager().queryIntentActivities(intent, 0).isEmpty()) {
             Preference pref = findPreference(KEY_REGULATORY_INFO);
             if (pref != null) {
                 getPreferenceScreen().removePreference(pref);
             }
         }
     }

     @Override
     public void onResume() {
         super.onResume();
         mDevHitCountdown = getActivity().getSharedPreferences(DevelopmentSettings.PREF_FILE,
                 Context.MODE_PRIVATE).getBoolean(DevelopmentSettings.PREF_SHOW,
                         android.os.Build.TYPE.equals("eng")) ? -1 : TAPS_TO_BE_A_DEVELOPER;
         mDevHitToast = null;
     }

     @Override
     public boolean onPreferenceTreeClick(Preference preference) {
         if (preference.getKey().equals(KEY_FIRMWARE_VERSION)) {
             System.arraycopy(mHits, 1, mHits, 0, mHits.length-1);
             mHits[mHits.length-1] = SystemClock.uptimeMillis();
             if (mHits[0] >= (SystemClock.uptimeMillis()-500)) {
                 if (mUm.hasUserRestriction(UserManager.DISALLOW_FUN)) {
                     Log.d(LOG_TAG, "Sorry, no fun for you!");
                     return false;
                 }

                 Intent intent = new Intent(Intent.ACTION_MAIN);
                 intent.setClassName("android",
                         com.android.internal.app.PlatLogoActivity.class.getName());
                 try {
                     startActivity(intent);
                 } catch (Exception e) {
                     Log.e(LOG_TAG, "Unable to start activity " + intent.toString());
                 }
             }
         } else if (preference.getKey().equals(KEY_BUILD_NUMBER)) {
             // Don't enable developer options for secondary users.
             if (!mUm.isAdminUser()) return true;

             if (mUm.hasUserRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES)) return true;

             if (mDevHitCountdown > 0) {
                 mDevHitCountdown--;
                 if (mDevHitCountdown == 0) {
                     getActivity().getSharedPreferences(DevelopmentSettings.PREF_FILE,
                             Context.MODE_PRIVATE).edit().putBoolean(
                                     DevelopmentSettings.PREF_SHOW, true).apply();
                     if (mDevHitToast != null) {
                         mDevHitToast.cancel();
                     }
                     mDevHitToast = Toast.makeText(getActivity(), R.string.show_dev_on,
                             Toast.LENGTH_LONG);
                     mDevHitToast.show();
                     // This is good time to index the Developer Options
                     Index.getInstance(
                             getActivity().getApplicationContext()).updateFromClassNameResource(
                                     DevelopmentSettings.class.getName(), true, true);

                 } else if (mDevHitCountdown > 0
                         && mDevHitCountdown < (TAPS_TO_BE_A_DEVELOPER-2)) {
                     if (mDevHitToast != null) {
                         mDevHitToast.cancel();
                     }
                     mDevHitToast = Toast.makeText(getActivity(), getResources().getQuantityString(
                             R.plurals.show_dev_countdown, mDevHitCountdown, mDevHitCountdown),
                             Toast.LENGTH_SHORT);
                     mDevHitToast.show();
                 }
             } else if (mDevHitCountdown < 0) {
                 if (mDevHitToast != null) {
                     mDevHitToast.cancel();
                 }
                 mDevHitToast = Toast.makeText(getActivity(), R.string.show_dev_already,
                         Toast.LENGTH_LONG);
                 mDevHitToast.show();
             }
         } else if (preference.getKey().equals(KEY_DEVICE_FEEDBACK)) {
             sendFeedback();
         } else if(preference.getKey().equals(KEY_SYSTEM_UPDATE_SETTINGS)) {
             CarrierConfigManager configManager =
                     (CarrierConfigManager) getSystemService(Context.CARRIER_CONFIG_SERVICE);
             PersistableBundle b = configManager.getConfig();
             if (b.getBoolean(CarrierConfigManager.KEY_CI_ACTION_ON_SYS_UPDATE_BOOL)) {
                 ciActionOnSysUpdate(b);
             }
         }
         return super.onPreferenceTreeClick(preference);
     }

     /**
      * Trigger client initiated action (send intent) on system update
      */
     private void ciActionOnSysUpdate(PersistableBundle b) {
         String intentStr = b.getString(CarrierConfigManager.
                 KEY_CI_ACTION_ON_SYS_UPDATE_INTENT_STRING);
         if (!TextUtils.isEmpty(intentStr)) {
             String extra = b.getString(CarrierConfigManager.
                     KEY_CI_ACTION_ON_SYS_UPDATE_EXTRA_STRING);
             String extraVal = b.getString(CarrierConfigManager.
                     KEY_CI_ACTION_ON_SYS_UPDATE_EXTRA_VAL_STRING);

             Intent intent = new Intent(intentStr);
             if (!TextUtils.isEmpty(extra)) {
                 intent.putExtra(extra, extraVal);
             }
             Log.d(LOG_TAG, "ciActionOnSysUpdate: broadcasting intent " + intentStr +
                     " with extra " + extra + ", " + extraVal);
             getActivity().getApplicationContext().sendBroadcast(intent);
         }
     }

     private void removePreferenceIfPropertyMissing(PreferenceGroup preferenceGroup,
             String preference, String property ) {
         if (SystemProperties.get(property).equals("")) {
             // Property is missing so remove preference from group
             try {
                 preferenceGroup.removePreference(findPreference(preference));
             } catch (RuntimeException e) {
                 Log.d(LOG_TAG, "Property '" + property + "' missing and no '"
                         + preference + "' preference");
             }
         }
     }

     private void removePreferenceIfBoolFalse(String preference, int resId) {
         if (!getResources().getBoolean(resId)) {
             Preference pref = findPreference(preference);
             if (pref != null) {
                 getPreferenceScreen().removePreference(pref);
             }
         }
     }

     private void setStringSummary(String preference, String value) {
         try {
             findPreference(preference).setSummary(value);
         } catch (RuntimeException e) {
             findPreference(preference).setSummary(
                 getResources().getString(R.string.device_info_default));
         }
     }

     private void setValueSummary(String preference, String property) {
         try {
             findPreference(preference).setSummary(
                     SystemProperties.get(property,
                             getResources().getString(R.string.device_info_default)));
         } catch (RuntimeException e) {
             // No recovery
         }
     }

     private void sendFeedback() {
         String reporterPackage = getFeedbackReporterPackage(getActivity());
         if (TextUtils.isEmpty(reporterPackage)) {
             return;
         }
         Intent intent = new Intent(Intent.ACTION_BUG_REPORT);
         intent.setPackage(reporterPackage);
         startActivityForResult(intent, 0);
     }

     /**
      * Reads a line from the specified file.
      * @param filename the file to read from
      * @return the first line, if any.
      * @throws IOException if the file couldn't be read
      */
     private static String readLine(String filename) throws IOException {
         BufferedReader reader = new BufferedReader(new FileReader(filename), 256);
         try {
             return reader.readLine();
         } finally {
             reader.close();
         }
     }

     public static String getFormattedKernelVersion() {
         try {
             return formatKernelVersion(readLine(FILENAME_PROC_VERSION));

         } catch (IOException e) {
             Log.e(LOG_TAG,
                 "IO Exception when getting kernel version for Device Info screen",
                 e);

             return "Unavailable";
         }
     }

     public static String formatKernelVersion(String rawKernelVersion) {
         // Example (see tests for more):
         // Linux version 3.0.31-g6fb96c9 (android-build@xxx.xxx.xxx.xxx.com) \
         //     (gcc version 4.6.x-xxx 20120106 (prerelease) (GCC) ) #1 SMP PREEMPT \
         //     Thu Jun 28 11:02:39 PDT 2012

         final String PROC_VERSION_REGEX =
             "Linux version (\\S+) " + /* group 1: "3.0.31-g6fb96c9" */
             "\\((\\S+?)\\) " +        /* group 2: "x@y.com" (kernel builder) */
             "(?:\\(gcc.+? \\)) " +    /* ignore: GCC version information */
             "(#\\d+) " +              /* group 3: "#1" */
             "(?:.*?)?" +              /* ignore: optional SMP, PREEMPT, and any CONFIG_FLAGS */
             "((Sun|Mon|Tue|Wed|Thu|Fri|Sat).+)"; /* group 4: "Thu Jun 28 11:02:39 PDT 2012" */

         Matcher m = Pattern.compile(PROC_VERSION_REGEX).matcher(rawKernelVersion);
         if (!m.matches()) {
             Log.e(LOG_TAG, "Regex did not match on /proc/version: " + rawKernelVersion);
             return "Unavailable";
         } else if (m.groupCount() < 4) {
             Log.e(LOG_TAG, "Regex match on /proc/version only returned " + m.groupCount()
                     + " groups");
             return "Unavailable";
         }
         return m.group(1) + "\n" +                 // 3.0.31-g6fb96c9
             m.group(2) + " " + m.group(3) + "\n" + // x@y.com #1
             m.group(4);                            // Thu Jun 28 11:02:39 PDT 2012
     }

     /**
      * Returns " (ENGINEERING)" if the msv file has a zero value, else returns "".
      * @return a string to append to the model number description.
      */
     private String getMsvSuffix() {
         // Production devices should have a non-zero value. If we can't read it, assume it's a
         // production device so that we don't accidentally show that it's an ENGINEERING device.
         try {
             String msv = readLine(FILENAME_MSV);
             // Parse as a hex number. If it evaluates to a zero, then it's an engineering build.
             if (Long.parseLong(msv, 16) == 0) {
                 return " (ENGINEERING)";
             }
         } catch (IOException ioe) {
             // Fail quietly, as the file may not exist on some devices.
         } catch (NumberFormatException nfe) {
             // Fail quietly, returning empty string should be sufficient
         }
         return "";
     }

     private static String getFeedbackReporterPackage(Context context) {
         final String feedbackReporter =
                 context.getResources().getString(R.string.oem_preferred_feedback_reporter);
         if (TextUtils.isEmpty(feedbackReporter)) {
             // Reporter not configured. Return.
             return feedbackReporter;
         }
         // Additional checks to ensure the reporter is on system image, and reporter is
         // configured to listen to the intent. Otherwise, dont show the "send feedback" option.
         final Intent intent = new Intent(Intent.ACTION_BUG_REPORT);

         PackageManager pm = context.getPackageManager();
         List<ResolveInfo> resolvedPackages =
                 pm.queryIntentActivities(intent, PackageManager.GET_RESOLVED_FILTER);
         for (ResolveInfo info : resolvedPackages) {
             if (info.activityInfo != null) {
                 if (!TextUtils.isEmpty(info.activityInfo.packageName)) {
                     try {
                         ApplicationInfo ai = pm.getApplicationInfo(info.activityInfo.packageName, 0);
                         if ((ai.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
                             // Package is on the system image
                             if (TextUtils.equals(
                                         info.activityInfo.packageName, feedbackReporter)) {
                                 return feedbackReporter;
                             }
                         }
                     } catch (PackageManager.NameNotFoundException e) {
                          // No need to do anything here.
                     }
                 }
             }
         }
         return null;
     }

     /**
      * For Search.
      */
     public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
         new BaseSearchIndexProvider() {

             @Override
             public List<SearchIndexableResource> getXmlResourcesToIndex(
                     Context context, boolean enabled) {
                 final SearchIndexableResource sir = new SearchIndexableResource(context);
                 sir.xmlResId = R.xml.device_info_settings;
                 return Arrays.asList(sir);
             }

             @Override
             public List<String> getNonIndexableKeys(Context context) {
                 final List<String> keys = new ArrayList<String>();
                 if (isPropertyMissing(PROPERTY_SELINUX_STATUS)) {
                     keys.add(KEY_SELINUX_STATUS);
                 }
                 if (isPropertyMissing(PROPERTY_URL_SAFETYLEGAL)) {
                     keys.add(KEY_SAFETY_LEGAL);
                 }
                 if (isPropertyMissing(PROPERTY_EQUIPMENT_ID)) {
                     keys.add(KEY_EQUIPMENT_ID);
                 }
                 // Remove Baseband version if wifi-only device
                 if (Utils.isWifiOnly(context)) {
                     keys.add((KEY_BASEBAND_VERSION));
                 }
                 // Dont show feedback option if there is no reporter.
                 if (TextUtils.isEmpty(getFeedbackReporterPackage(context))) {
                     keys.add(KEY_DEVICE_FEEDBACK);
                 }
                 final UserManager um = UserManager.get(context);
                 // TODO: system update needs to be fixed for non-owner user b/22760654
                 if (!um.isAdminUser()) {
                     keys.add(KEY_SYSTEM_UPDATE_SETTINGS);
                 }
                 if (!context.getResources().getBoolean(
                         R.bool.config_additional_system_update_setting_enable)) {
                     keys.add(KEY_UPDATE_SETTING);
                 }
                 return keys;
             }

             private boolean isPropertyMissing(String property) {
                 return SystemProperties.get(property).equals("");
             }
         };

 }
	/*
	* Copyright (C) 2008 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package com.android.settings;

	import android.app.Activity;
	import android.content.Context;
	import android.content.Intent;
	import android.content.pm.ApplicationInfo;
	import android.content.pm.PackageManager;
	import android.content.pm.ResolveInfo;
	import android.os.Build;
	import android.os.Bundle;
	import android.os.PersistableBundle;
	import android.os.SELinux;
	import android.os.SystemClock;
	import android.os.SystemProperties;
	import android.os.UserManager;
	import android.provider.SearchIndexableResource;
	import android.provider.Settings;
	import android.support.v7.preference.Preference;
	import android.support.v7.preference.PreferenceGroup;
	import android.telephony.CarrierConfigManager;
	import android.text.TextUtils;
	import android.text.format.DateFormat;
	import android.util.Log;
	import android.widget.Toast;

	import com.android.internal.logging.MetricsLogger;
	import com.android.settings.search.BaseSearchIndexProvider;
	import com.android.settings.search.Index;
	import com.android.settings.search.Indexable;

	import java.io.BufferedReader;
	import java.io.FileReader;
	import java.io.IOException;
	import java.text.ParseException;
	import java.text.SimpleDateFormat;
	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.Date;
	import java.util.List;
	import java.util.Locale;
	import java.util.regex.Matcher;
	import java.util.regex.Pattern;

	public class DeviceInfoSettings extends SettingsPreferenceFragment implements Indexable {

	private static final String LOG_TAG = "DeviceInfoSettings";
	private static final String FILENAME_PROC_VERSION = "/proc/version";
	private static final String FILENAME_MSV = "/sys/board_properties/soc/msv";

	private static final String KEY_MANUAL = "manual";
	private static final String KEY_REGULATORY_INFO = "regulatory_info";
	private static final String KEY_SYSTEM_UPDATE_SETTINGS = "system_update_settings";
	private static final String PROPERTY_URL_SAFETYLEGAL = "ro.url.safetylegal";
	private static final String PROPERTY_SELINUX_STATUS = "ro.build.selinux";
	private static final String KEY_KERNEL_VERSION = "kernel_version";
	private static final String KEY_BUILD_NUMBER = "build_number";
	private static final String KEY_DEVICE_MODEL = "device_model";
	private static final String KEY_SELINUX_STATUS = "selinux_status";
	private static final String KEY_BASEBAND_VERSION = "baseband_version";
	private static final String KEY_FIRMWARE_VERSION = "firmware_version";
	private static final String KEY_SECURITY_PATCH = "security_patch";
	private static final String KEY_UPDATE_SETTING = "additional_system_update_settings";
	private static final String KEY_EQUIPMENT_ID = "fcc_equipment_id";
	private static final String PROPERTY_EQUIPMENT_ID = "ro.ril.fccid";
	private static final String KEY_DEVICE_FEEDBACK = "device_feedback";
	private static final String KEY_SAFETY_LEGAL = "safetylegal";

	static final int TAPS_TO_BE_A_DEVELOPER = 7;

	long[] mHits = new long[3];
	int mDevHitCountdown;
	Toast mDevHitToast;

	private UserManager mUm;

	@Override
	protected int getMetricsCategory() {
	return MetricsLogger.DEVICEINFO;
	}

	@Override
	protected int getHelpResource() {
	return R.string.help_uri_about;
	}

	@Override
	public void onCreate(Bundle icicle) {
	super.onCreate(icicle);
	mUm = UserManager.get(getActivity());

	addPreferencesFromResource(R.xml.device_info_settings);

	setStringSummary(KEY_FIRMWARE_VERSION, Build.VERSION.RELEASE);
	findPreference(KEY_FIRMWARE_VERSION).setEnabled(true);
	String patch = Build.VERSION.SECURITY_PATCH;
	if (!"".equals(patch)) {
	try {
	SimpleDateFormat template = new SimpleDateFormat("yyyy-MM-dd");
	Date patchDate = template.parse(patch);
	String format = DateFormat.getBestDateTimePattern(Locale.getDefault(), "dMMMMyyyy");
	patch = DateFormat.format(format, patchDate).toString();
	} catch (ParseException e) {
	// broken parse; fall through and use the raw string
	}
	setStringSummary(KEY_SECURITY_PATCH, patch);
	} else {
	getPreferenceScreen().removePreference(findPreference(KEY_SECURITY_PATCH));

	}
	setValueSummary(KEY_BASEBAND_VERSION, "gsm.version.baseband");
	setStringSummary(KEY_DEVICE_MODEL, Build.MODEL + getMsvSuffix());
	setValueSummary(KEY_EQUIPMENT_ID, PROPERTY_EQUIPMENT_ID);
	setStringSummary(KEY_DEVICE_MODEL, Build.MODEL);
	setStringSummary(KEY_BUILD_NUMBER, Build.DISPLAY);
	findPreference(KEY_BUILD_NUMBER).setEnabled(true);
	findPreference(KEY_KERNEL_VERSION).setSummary(getFormattedKernelVersion());

	if (!SELinux.isSELinuxEnabled()) {
	String status = getResources().getString(R.string.selinux_status_disabled);
	setStringSummary(KEY_SELINUX_STATUS, status);
	} else if (!SELinux.isSELinuxEnforced()) {
	String status = getResources().getString(R.string.selinux_status_permissive);
	setStringSummary(KEY_SELINUX_STATUS, status);
	}

	// Remove selinux information if property is not present
	removePreferenceIfPropertyMissing(getPreferenceScreen(), KEY_SELINUX_STATUS,
	PROPERTY_SELINUX_STATUS);

	// Remove Safety information preference if PROPERTY_URL_SAFETYLEGAL is not set
	removePreferenceIfPropertyMissing(getPreferenceScreen(), KEY_SAFETY_LEGAL,
	PROPERTY_URL_SAFETYLEGAL);

	// Remove Equipment id preference if FCC ID is not set by RIL
	removePreferenceIfPropertyMissing(getPreferenceScreen(), KEY_EQUIPMENT_ID,
	PROPERTY_EQUIPMENT_ID);

	// Remove Baseband version if wifi-only device
	if (Utils.isWifiOnly(getActivity())) {
	getPreferenceScreen().removePreference(findPreference(KEY_BASEBAND_VERSION));
	}

	// Dont show feedback option if there is no reporter.
	if (TextUtils.isEmpty(getFeedbackReporterPackage(getActivity()))) {
	getPreferenceScreen().removePreference(findPreference(KEY_DEVICE_FEEDBACK));
	}

	/*
	* Settings is a generic app and should not contain any device-specific
	* info.
	*/
	final Activity act = getActivity();

	// These are contained by the root preference screen
	PreferenceGroup parentPreference = getPreferenceScreen();

	if (mUm.isAdminUser()) {
	Utils.updatePreferenceToSpecificActivityOrRemove(act, parentPreference,
	KEY_SYSTEM_UPDATE_SETTINGS,
	Utils.UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY);
	} else {
	// Remove for secondary users
	removePreference(KEY_SYSTEM_UPDATE_SETTINGS);
	}

	// Read platform settings for additional system update setting
	removePreferenceIfBoolFalse(KEY_UPDATE_SETTING,
	R.bool.config_additional_system_update_setting_enable);

	// Remove manual entry if none present.
	removePreferenceIfBoolFalse(KEY_MANUAL, R.bool.config_show_manual);

	// Remove regulatory information if none present.
	final Intent intent = new Intent(Settings.ACTION_SHOW_REGULATORY_INFO);
	if (getPackageManager().queryIntentActivities(intent, 0).isEmpty()) {
	Preference pref = findPreference(KEY_REGULATORY_INFO);
	if (pref != null) {
	getPreferenceScreen().removePreference(pref);
	}
	}
	}

	@Override
	public void onResume() {
	super.onResume();
	mDevHitCountdown = getActivity().getSharedPreferences(DevelopmentSettings.PREF_FILE,
	Context.MODE_PRIVATE).getBoolean(DevelopmentSettings.PREF_SHOW,
	android.os.Build.TYPE.equals("eng")) ? -1 : TAPS_TO_BE_A_DEVELOPER;
	mDevHitToast = null;
	}

	@Override
	public boolean onPreferenceTreeClick(Preference preference) {
	if (preference.getKey().equals(KEY_FIRMWARE_VERSION)) {
	System.arraycopy(mHits, 1, mHits, 0, mHits.length-1);
	mHits[mHits.length-1] = SystemClock.uptimeMillis();
	if (mHits[0] >= (SystemClock.uptimeMillis()-500)) {
	if (mUm.hasUserRestriction(UserManager.DISALLOW_FUN)) {
	Log.d(LOG_TAG, "Sorry, no fun for you!");
	return false;
	}

	Intent intent = new Intent(Intent.ACTION_MAIN);
	intent.setClassName("android",
	com.android.internal.app.PlatLogoActivity.class.getName());
	try {
	startActivity(intent);
	} catch (Exception e) {
	Log.e(LOG_TAG, "Unable to start activity " + intent.toString());
	}
	}
	} else if (preference.getKey().equals(KEY_BUILD_NUMBER)) {
	// Don't enable developer options for secondary users.
	if (!mUm.isAdminUser()) return true;

	if (mUm.hasUserRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES)) return true;

	if (mDevHitCountdown > 0) {
	mDevHitCountdown--;
	if (mDevHitCountdown == 0) {
	getActivity().getSharedPreferences(DevelopmentSettings.PREF_FILE,
	Context.MODE_PRIVATE).edit().putBoolean(
	DevelopmentSettings.PREF_SHOW, true).apply();
	if (mDevHitToast != null) {
	mDevHitToast.cancel();
	}
	mDevHitToast = Toast.makeText(getActivity(), R.string.show_dev_on,
	Toast.LENGTH_LONG);
	mDevHitToast.show();
	// This is good time to index the Developer Options
	Index.getInstance(
	getActivity().getApplicationContext()).updateFromClassNameResource(
	DevelopmentSettings.class.getName(), true, true);

	} else if (mDevHitCountdown > 0
	&& mDevHitCountdown < (TAPS_TO_BE_A_DEVELOPER-2)) {
	if (mDevHitToast != null) {
	mDevHitToast.cancel();
	}
	mDevHitToast = Toast.makeText(getActivity(), getResources().getQuantityString(
	R.plurals.show_dev_countdown, mDevHitCountdown, mDevHitCountdown),
	Toast.LENGTH_SHORT);
	mDevHitToast.show();
	}
	} else if (mDevHitCountdown < 0) {
	if (mDevHitToast != null) {
	mDevHitToast.cancel();
	}
	mDevHitToast = Toast.makeText(getActivity(), R.string.show_dev_already,
	Toast.LENGTH_LONG);
	mDevHitToast.show();
	}
	} else if (preference.getKey().equals(KEY_DEVICE_FEEDBACK)) {
	sendFeedback();
	} else if(preference.getKey().equals(KEY_SYSTEM_UPDATE_SETTINGS)) {
	CarrierConfigManager configManager =
	(CarrierConfigManager) getSystemService(Context.CARRIER_CONFIG_SERVICE);
	PersistableBundle b = configManager.getConfig();
	if (b.getBoolean(CarrierConfigManager.KEY_CI_ACTION_ON_SYS_UPDATE_BOOL)) {
	ciActionOnSysUpdate(b);
	}
	}
	return super.onPreferenceTreeClick(preference);
	}

	/**
	* Trigger client initiated action (send intent) on system update
	*/
	private void ciActionOnSysUpdate(PersistableBundle b) {
	String intentStr = b.getString(CarrierConfigManager.
	KEY_CI_ACTION_ON_SYS_UPDATE_INTENT_STRING);
	if (!TextUtils.isEmpty(intentStr)) {
	String extra = b.getString(CarrierConfigManager.
	KEY_CI_ACTION_ON_SYS_UPDATE_EXTRA_STRING);
	String extraVal = b.getString(CarrierConfigManager.
	KEY_CI_ACTION_ON_SYS_UPDATE_EXTRA_VAL_STRING);

	Intent intent = new Intent(intentStr);
	if (!TextUtils.isEmpty(extra)) {
	intent.putExtra(extra, extraVal);
	}
	Log.d(LOG_TAG, "ciActionOnSysUpdate: broadcasting intent " + intentStr +
	" with extra " + extra + ", " + extraVal);
	getActivity().getApplicationContext().sendBroadcast(intent);
	}
	}

	private void removePreferenceIfPropertyMissing(PreferenceGroup preferenceGroup,
	String preference, String property ) {
	if (SystemProperties.get(property).equals("")) {
	// Property is missing so remove preference from group
	try {
	preferenceGroup.removePreference(findPreference(preference));
	} catch (RuntimeException e) {
	Log.d(LOG_TAG, "Property '" + property + "' missing and no '"
	+ preference + "' preference");
	}
	}
	}

	private void removePreferenceIfBoolFalse(String preference, int resId) {
	if (!getResources().getBoolean(resId)) {
	Preference pref = findPreference(preference);
	if (pref != null) {
	getPreferenceScreen().removePreference(pref);
	}
	}
	}

	private void setStringSummary(String preference, String value) {
	try {
	findPreference(preference).setSummary(value);
	} catch (RuntimeException e) {
	findPreference(preference).setSummary(
	getResources().getString(R.string.device_info_default));
	}
	}

	private void setValueSummary(String preference, String property) {
	try {
	findPreference(preference).setSummary(
	SystemProperties.get(property,
	getResources().getString(R.string.device_info_default)));
	} catch (RuntimeException e) {
	// No recovery
	}
	}

	private void sendFeedback() {
	String reporterPackage = getFeedbackReporterPackage(getActivity());
	if (TextUtils.isEmpty(reporterPackage)) {
	return;
	}
	Intent intent = new Intent(Intent.ACTION_BUG_REPORT);
	intent.setPackage(reporterPackage);
	startActivityForResult(intent, 0);
	}

	/**
	* Reads a line from the specified file.
	* @param filename the file to read from
	* @return the first line, if any.
	* @throws IOException if the file couldn't be read
	*/
	private static String readLine(String filename) throws IOException {
	BufferedReader reader = new BufferedReader(new FileReader(filename), 256);
	try {
	return reader.readLine();
	} finally {
	reader.close();
	}
	}

	public static String getFormattedKernelVersion() {
	try {
	return formatKernelVersion(readLine(FILENAME_PROC_VERSION));

	} catch (IOException e) {
	Log.e(LOG_TAG,
	"IO Exception when getting kernel version for Device Info screen",
	e);

	return "Unavailable";
	}
	}

	public static String formatKernelVersion(String rawKernelVersion) {
	// Example (see tests for more):
	// Linux version 3.0.31-g6fb96c9 (android-build@xxx.xxx.xxx.xxx.com) \
	// (gcc version 4.6.x-xxx 20120106 (prerelease) (GCC) ) #1 SMP PREEMPT \
	// Thu Jun 28 11:02:39 PDT 2012

	final String PROC_VERSION_REGEX =
	"Linux version (\\S+) " + /* group 1: "3.0.31-g6fb96c9" */
	"\\((\\S+?)\\) " + /* group 2: "x@y.com" (kernel builder) */
	"(?:\\(gcc.+? \\)) " + /* ignore: GCC version information */
	"(#\\d+) " + /* group 3: "#1" */
	"(?:.?)?" + / ignore: optional SMP, PREEMPT, and any CONFIG_FLAGS */
	"((Sun\|Mon\|Tue\|Wed\|Thu\|Fri\|Sat).+)"; /* group 4: "Thu Jun 28 11:02:39 PDT 2012" */

	Matcher m = Pattern.compile(PROC_VERSION_REGEX).matcher(rawKernelVersion);
	if (!m.matches()) {
	Log.e(LOG_TAG, "Regex did not match on /proc/version: " + rawKernelVersion);
	return "Unavailable";
	} else if (m.groupCount() < 4) {
	Log.e(LOG_TAG, "Regex match on /proc/version only returned " + m.groupCount()
	+ " groups");
	return "Unavailable";
	}
	return m.group(1) + "\n" + // 3.0.31-g6fb96c9
	m.group(2) + " " + m.group(3) + "\n" + // x@y.com #1
	m.group(4); // Thu Jun 28 11:02:39 PDT 2012
	}

	/**
	* Returns " (ENGINEERING)" if the msv file has a zero value, else returns "".
	* @return a string to append to the model number description.
	*/
	private String getMsvSuffix() {
	// Production devices should have a non-zero value. If we can't read it, assume it's a
	// production device so that we don't accidentally show that it's an ENGINEERING device.
	try {
	String msv = readLine(FILENAME_MSV);
	// Parse as a hex number. If it evaluates to a zero, then it's an engineering build.
	if (Long.parseLong(msv, 16) == 0) {
	return " (ENGINEERING)";
	}
	} catch (IOException ioe) {
	// Fail quietly, as the file may not exist on some devices.
	} catch (NumberFormatException nfe) {
	// Fail quietly, returning empty string should be sufficient
	}
	return "";
	}

	private static String getFeedbackReporterPackage(Context context) {
	final String feedbackReporter =
	context.getResources().getString(R.string.oem_preferred_feedback_reporter);
	if (TextUtils.isEmpty(feedbackReporter)) {
	// Reporter not configured. Return.
	return feedbackReporter;
	}
	// Additional checks to ensure the reporter is on system image, and reporter is
	// configured to listen to the intent. Otherwise, dont show the "send feedback" option.
	final Intent intent = new Intent(Intent.ACTION_BUG_REPORT);

	PackageManager pm = context.getPackageManager();
	List<ResolveInfo> resolvedPackages =
	pm.queryIntentActivities(intent, PackageManager.GET_RESOLVED_FILTER);
	for (ResolveInfo info : resolvedPackages) {
	if (info.activityInfo != null) {
	if (!TextUtils.isEmpty(info.activityInfo.packageName)) {
	try {
	ApplicationInfo ai = pm.getApplicationInfo(info.activityInfo.packageName, 0);
	if ((ai.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
	// Package is on the system image
	if (TextUtils.equals(
	info.activityInfo.packageName, feedbackReporter)) {
	return feedbackReporter;
	}
	}
	} catch (PackageManager.NameNotFoundException e) {
	// No need to do anything here.
	}
	}
	}
	}
	return null;
	}

	/**
	* For Search.
	*/
	public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
	new BaseSearchIndexProvider() {

	@Override
	public List<SearchIndexableResource> getXmlResourcesToIndex(
	Context context, boolean enabled) {
	final SearchIndexableResource sir = new SearchIndexableResource(context);
	sir.xmlResId = R.xml.device_info_settings;
	return Arrays.asList(sir);
	}

	@Override
	public List<String> getNonIndexableKeys(Context context) {
	final List<String> keys = new ArrayList<String>();
	if (isPropertyMissing(PROPERTY_SELINUX_STATUS)) {
	keys.add(KEY_SELINUX_STATUS);
	}
	if (isPropertyMissing(PROPERTY_URL_SAFETYLEGAL)) {
	keys.add(KEY_SAFETY_LEGAL);
	}
	if (isPropertyMissing(PROPERTY_EQUIPMENT_ID)) {
	keys.add(KEY_EQUIPMENT_ID);
	}
	// Remove Baseband version if wifi-only device
	if (Utils.isWifiOnly(context)) {
	keys.add((KEY_BASEBAND_VERSION));
	}
	// Dont show feedback option if there is no reporter.
	if (TextUtils.isEmpty(getFeedbackReporterPackage(context))) {
	keys.add(KEY_DEVICE_FEEDBACK);
	}
	final UserManager um = UserManager.get(context);
	// TODO: system update needs to be fixed for non-owner user b/22760654
	if (!um.isAdminUser()) {
	keys.add(KEY_SYSTEM_UPDATE_SETTINGS);
	}
	if (!context.getResources().getBoolean(
	R.bool.config_additional_system_update_setting_enable)) {
	keys.add(KEY_UPDATE_SETTING);
	}
	return keys;
	}

	private boolean isPropertyMissing(String property) {
	return SystemProperties.get(property).equals("");
	}
	};

	}