src/com/android/settings/DeviceInfoSettings.java

   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.content.ClipData;
  21 import android.content.ClipboardManager;
  22 import android.content.Context;
  23 import android.content.Intent;
  24 import android.content.pm.ApplicationInfo;
  25 import android.content.pm.PackageInfo;
  26 import android.content.pm.PackageManager;
  27 import android.content.pm.PackageManager.NameNotFoundException;
  28 import android.content.pm.ResolveInfo;
  29 import android.os.Build;
  30 import android.os.Bundle;
  31 import android.os.PersistableBundle;
  32 import android.os.SELinux;
  33 import android.os.SystemClock;
  34 import android.os.SystemProperties;
  35 import android.os.UserHandle;
  36 import android.os.UserManager;
  37 import android.preference.Preference;
  38 import android.preference.PreferenceGroup;
  39 import android.preference.PreferenceScreen;
  40 import android.provider.SearchIndexableResource;
  41 import android.provider.Settings;
  42 import android.telephony.CarrierConfigManager;
  43 import android.text.TextUtils;
  44 import android.text.format.DateFormat;
  45 import android.util.Log;
  46 import android.widget.Toast;
  47
  48 import cyanogenmod.hardware.CMHardwareManager;
  49 import com.android.internal.logging.MetricsLogger;
  50 import com.android.settings.search.BaseSearchIndexProvider;
  51 import com.android.settings.search.Index;
  52 import com.android.settings.search.Indexable;
  53
  54 import java.io.BufferedReader;
  55 import java.io.FileReader;
  56 import java.io.IOException;
  57 import java.text.ParseException;
  58 import java.text.SimpleDateFormat;
  59 import java.util.ArrayList;
  60 import java.util.Arrays;
  61 import java.util.Date;
  62 import java.util.List;
  63 import java.util.Locale;
  64 import java.util.regex.Matcher;
  65 import java.util.regex.Pattern;
  66
  67 public class DeviceInfoSettings extends SettingsPreferenceFragment implements Indexable {
  68
  69     private static final String LOG_TAG = "DeviceInfoSettings";
  70     private static final String FILENAME_PROC_VERSION = "/proc/version";
  71     private static final String FILENAME_MSV = "/sys/board_properties/soc/msv";
  72
  73     private static final String KEY_MANUAL = "manual";
  74     private static final String KEY_REGULATORY_INFO = "regulatory_info";
  75     private static final String KEY_SYSTEM_UPDATE_SETTINGS = "system_update_settings";
  76     private static final String PROPERTY_URL_SAFETYLEGAL = "ro.url.safetylegal";
  77     private static final String PROPERTY_SELINUX_STATUS = "ro.build.selinux";
  78     private static final String KEY_KERNEL_VERSION = "kernel_version";
  79     private static final String KEY_BUILD_NUMBER = "build_number";
  80     private static final String KEY_DEVICE_MODEL = "device_model";
  81     private static final String KEY_DEVICE_NAME = "device_name";
  82     private static final String KEY_SELINUX_STATUS = "selinux_status";
  83     private static final String KEY_BASEBAND_VERSION = "baseband_version";
  84     private static final String KEY_FIRMWARE_VERSION = "firmware_version";
  85     private static final String KEY_SECURITY_PATCH = "security_patch";
  86     private static final String KEY_UPDATE_SETTING = "additional_system_update_settings";
  87     private static final String KEY_EQUIPMENT_ID = "fcc_equipment_id";
  88     private static final String PROPERTY_EQUIPMENT_ID = "ro.ril.fccid";
  89     private static final String KEY_DEVICE_FEEDBACK = "device_feedback";
  90     private static final String KEY_SAFETY_LEGAL = "safetylegal";
  91     private static final String KEY_MOD_VERSION = "mod_version";
  92     private static final String KEY_MOD_BUILD_DATE = "build_date";
  93     private static final String KEY_MOD_API_LEVEL = "mod_api_level";
  94     private static final String KEY_CM_UPDATES = "cm_updates";
  95
  96     static final int TAPS_TO_BE_A_DEVELOPER = 7;
  97     static final int TAPS_TO_SHOW_DEVICEID = 7;
  98
  99     long[] mHits = new long[3];
 100     int mDevHitCountdown;
 101     int mDevIdCountdown;
 102     Toast mDevHitToast;
 103     Toast mDevIdToast;
 104
 105     @Override
 106     protected int getMetricsCategory() {
 107         return MetricsLogger.DEVICEINFO;
 108     }
 109
 110     @Override
 111     protected int getHelpResource() {
 112         return R.string.help_uri_about;
 113     }
 114
 115     @Override
 116     public void onCreate(Bundle icicle) {
 117         super.onCreate(icicle);
 118
 119         addPreferencesFromResource(R.xml.device_info_settings);
 120
 121         setStringSummary(KEY_FIRMWARE_VERSION, Build.VERSION.RELEASE);
 122         findPreference(KEY_FIRMWARE_VERSION).setEnabled(true);
 123         String patch = Build.VERSION.SECURITY_PATCH;
 124         if (!"".equals(patch)) {
 125             try {
 126                 SimpleDateFormat template = new SimpleDateFormat("yyyy-MM-dd");
 127                 Date patchDate = template.parse(patch);
 128                 String format = DateFormat.getBestDateTimePattern(Locale.getDefault(), "dMMMMyyyy");
 129                 patch = DateFormat.format(format, patchDate).toString();
 130             } catch (ParseException e) {
 131                 // broken parse; fall through and use the raw string
 132             }
 133             setStringSummary(KEY_SECURITY_PATCH, patch);
 134         } else {
 135             getPreferenceScreen().removePreference(findPreference(KEY_SECURITY_PATCH));
 136
 137         }
 138         setValueSummary(KEY_BASEBAND_VERSION, "gsm.version.baseband");
 139         setValueSummary(KEY_EQUIPMENT_ID, PROPERTY_EQUIPMENT_ID);
 140         setStringSummary(KEY_DEVICE_MODEL, Build.MODEL);
 141         setStringSummary(KEY_BUILD_NUMBER, Build.DISPLAY);
 142         findPreference(KEY_BUILD_NUMBER).setEnabled(true);
 143
 144         final Preference kernelPref = findPreference(KEY_KERNEL_VERSION);
 145         kernelPref.setEnabled(true);
 146         kernelPref.setSummary(getFormattedKernelVersion());
 147         findPreference(KEY_MOD_VERSION).setSummary(
 148                 cyanogenmod.os.Build.CYANOGENMOD_DISPLAY_VERSION);
 149         findPreference(KEY_MOD_VERSION).setEnabled(true);
 150         setValueSummary(KEY_MOD_BUILD_DATE, "ro.build.date");
 151         setExplicitValueSummary(KEY_MOD_API_LEVEL, constructApiLevelString());
 152         findPreference(KEY_MOD_API_LEVEL).setEnabled(true);
 153         findPreference(KEY_MOD_BUILD_DATE).setEnabled(true);
 154
 155         if (!SELinux.isSELinuxEnabled()) {
 156             String status = getResources().getString(R.string.selinux_status_disabled);
 157             setStringSummary(KEY_SELINUX_STATUS, status);
 158         } else if (!SELinux.isSELinuxEnforced()) {
 159             String status = getResources().getString(R.string.selinux_status_permissive);
 160             setStringSummary(KEY_SELINUX_STATUS, status);
 161         }
 162
 163         setStringSummary(KEY_DEVICE_NAME, Build.PRODUCT);
 164         removePreferenceIfBoolFalse(KEY_DEVICE_NAME, R.bool.config_displayDeviceName);
 165
 166         // Remove selinux information if property is not present
 167         removePreferenceIfPropertyMissing(getPreferenceScreen(), KEY_SELINUX_STATUS,
 168                 PROPERTY_SELINUX_STATUS);
 169
 170         // Only the owner should see the Updater settings, if it exists
 171         if (UserHandle.myUserId() == UserHandle.USER_OWNER) {
 172             removePreferenceIfPackageNotInstalled(findPreference(KEY_CM_UPDATES));
 173         } else {
 174             getPreferenceScreen().removePreference(findPreference(KEY_CM_UPDATES));
 175         }
 176
 177         // Remove Safety information preference if PROPERTY_URL_SAFETYLEGAL is not set
 178         removePreferenceIfPropertyMissing(getPreferenceScreen(), KEY_SAFETY_LEGAL,
 179                 PROPERTY_URL_SAFETYLEGAL);
 180
 181         // Remove Equipment id preference if FCC ID is not set by RIL
 182         removePreferenceIfPropertyMissing(getPreferenceScreen(), KEY_EQUIPMENT_ID,
 183                 PROPERTY_EQUIPMENT_ID);
 184
 185         // Remove Baseband version if wifi-only device
 186         if (Utils.isWifiOnly(getActivity())) {
 187             getPreferenceScreen().removePreference(findPreference(KEY_BASEBAND_VERSION));
 188         }
 189
 190         // Dont show feedback option if there is no reporter.
 191         if (TextUtils.isEmpty(getFeedbackReporterPackage(getActivity()))) {
 192             getPreferenceScreen().removePreference(findPreference(KEY_DEVICE_FEEDBACK));
 193         }
 194
 195         /*
 196          * Settings is a generic app and should not contain any device-specific
 197          * info.
 198          */
 199         final Activity act = getActivity();
 200
 201         // These are contained by the root preference screen
 202         PreferenceGroup parentPreference = getPreferenceScreen();
 203         if (UserHandle.myUserId() == UserHandle.USER_OWNER) {
 204             Utils.updatePreferenceToSpecificActivityOrRemove(act, parentPreference,
 205                     KEY_SYSTEM_UPDATE_SETTINGS,
 206                     Utils.UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY);
 207             /* Make sure the activity is provided by who we want... */
 208             if (findPreference(KEY_SYSTEM_UPDATE_SETTINGS) != null)
 209                 removePreferenceIfPackageNotInstalled(findPreference(KEY_SYSTEM_UPDATE_SETTINGS));
 210         } else {
 211             // Remove for secondary users
 212             removePreference(KEY_SYSTEM_UPDATE_SETTINGS);
 213         }
 214
 215         // Read platform settings for additional system update setting
 216         removePreferenceIfBoolFalse(KEY_UPDATE_SETTING,
 217                 R.bool.config_additional_system_update_setting_enable);
 218
 219         // Remove manual entry if none present.
 220         removePreferenceIfBoolFalse(KEY_MANUAL, R.bool.config_show_manual);
 221
 222         // Remove regulatory information if none present
 223         final Intent intent = new Intent(Settings.ACTION_SHOW_REGULATORY_INFO);
 224         if (getPackageManager().queryIntentActivities(intent, 0).isEmpty()) {
 225             Preference pref = findPreference(KEY_REGULATORY_INFO);
 226             if (pref != null) {
 227                 getPreferenceScreen().removePreference(pref);
 228             }
 229         }
 230     }
 231
 232     @Override
 233     public void onResume() {
 234         super.onResume();
 235         mDevHitCountdown = getActivity().getSharedPreferences(DevelopmentSettings.PREF_FILE,
 236                 Context.MODE_PRIVATE).getBoolean(DevelopmentSettings.PREF_SHOW,
 237                         android.os.Build.TYPE.equals("eng")) ? -1 : TAPS_TO_BE_A_DEVELOPER;
 238         mDevHitToast = null;
 239         mDevIdCountdown = TAPS_TO_SHOW_DEVICEID;
 240         mDevIdToast = null;
 241     }
 242
 243     @Override
 244     public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
 245         if (preference.getKey().equals(KEY_FIRMWARE_VERSION)) {
 246             System.arraycopy(mHits, 1, mHits, 0, mHits.length-1);
 247             mHits[mHits.length-1] = SystemClock.uptimeMillis();
 248             if (mHits[0] >= (SystemClock.uptimeMillis()-500)) {
 249                 UserManager um = (UserManager) getActivity().getSystemService(Context.USER_SERVICE);
 250                 if (um.hasUserRestriction(UserManager.DISALLOW_FUN)) {
 251                     Log.d(LOG_TAG, "Sorry, no fun for you!");
 252                     return false;
 253                 }
 254
 255                 Intent intent = new Intent(Intent.ACTION_MAIN);
 256                 intent.setClassName("android",
 257                         com.android.internal.app.PlatLogoActivity.class.getName());
 258                 try {
 259                     startActivity(intent);
 260                 } catch (Exception e) {
 261                     Log.e(LOG_TAG, "Unable to start activity " + intent.toString());
 262                 }
 263             }
 264         } else if (preference.getKey().equals(KEY_MOD_BUILD_DATE)) {
 265             System.arraycopy(mHits, 1, mHits, 0, mHits.length-1);
 266             mHits[mHits.length-1] = SystemClock.uptimeMillis();
 267             if (mHits[0] >= (SystemClock.uptimeMillis()-500)) {
 268                 Intent intent = new Intent();
 269                 intent.setClassName("com.android.systemui",
 270                         "com.android.systemui.tuner.TunerActivity$DemoModeActivity");
 271                 try {
 272                     startActivity(intent);
 273                 } catch (Exception e) {
 274                     Log.e(LOG_TAG, "Unable to start activity " + intent.toString());
 275                 }
 276             }
 277         } else if (preference.getKey().equals(KEY_KERNEL_VERSION)) {
 278
 279             mDevIdCountdown --;
 280             if (mDevIdCountdown == 0) {
 281                 final CMHardwareManager hwMgr = CMHardwareManager.getInstance(getActivity().getApplicationContext());
 282                 final String deviceID = hwMgr.getUniqueDeviceId();
 283                 CharSequence msg;
 284                 if (deviceID == null) {
 285                     msg = getText(R.string.show_device_id_failed_cm);
 286                 }
 287                 else {
 288                     final ClipboardManager clipboardMgr = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
 289                     clipboardMgr.setPrimaryClip(ClipData.newPlainText(getResources().
 290                                     getString(R.string.show_device_id_clipboard_label),
 291                             deviceID));
 292                     msg = getResources().getString(
 293                             R.string.show_device_id_copied_cm, deviceID);
 294                 }
 295
 296                 mDevIdToast = Toast.makeText(getActivity(), msg,
 297                         Toast.LENGTH_LONG);
 298                 mDevIdToast.show();
 299                 mDevIdCountdown = TAPS_TO_SHOW_DEVICEID;
 300             }
 301             else if (mDevIdCountdown > 0
 302                     && mDevIdCountdown < (TAPS_TO_SHOW_DEVICEID-2)) {
 303
 304                 if (mDevIdToast != null) {
 305                     mDevIdToast.cancel();
 306                 }
 307                 mDevIdToast = Toast.makeText(getActivity(), getResources().getQuantityString(
 308                         R.plurals.show_device_id_countdown_cm, mDevIdCountdown, mDevIdCountdown),
 309                         Toast.LENGTH_SHORT);
 310                 mDevIdToast.show();
 311             }
 312
 313         } else if (preference.getKey().equals(KEY_BUILD_NUMBER)) {
 314             // Don't enable developer options for secondary users.
 315             if (UserHandle.myUserId() != UserHandle.USER_OWNER) return true;
 316
 317             // Don't enable developer options until device has been provisioned
 318             if (Settings.Global.getInt(getActivity().getContentResolver(),
 319                     Settings.Global.DEVICE_PROVISIONED, 0) == 0) {
 320                 return true;
 321             }
 322
 323             final UserManager um = (UserManager) getSystemService(Context.USER_SERVICE);
 324             if (um.hasUserRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES)) return true;
 325
 326             if (mDevHitCountdown > 0) {
 327                 mDevHitCountdown--;
 328                 if (mDevHitCountdown == 0) {
 329                     getActivity().getSharedPreferences(DevelopmentSettings.PREF_FILE,
 330                             Context.MODE_PRIVATE).edit().putBoolean(
 331                                     DevelopmentSettings.PREF_SHOW, true).apply();
 332                     if (mDevHitToast != null) {
 333                         mDevHitToast.cancel();
 334                     }
 335                     mDevHitToast = Toast.makeText(getActivity(), R.string.show_dev_on_cm,
 336                             Toast.LENGTH_LONG);
 337                     mDevHitToast.show();
 338                     // This is good time to index the Developer Options
 339                     Index.getInstance(
 340                             getActivity().getApplicationContext()).updateFromClassNameResource(
 341                                     DevelopmentSettings.class.getName(), true, true);
 342
 343                 } else if (mDevHitCountdown > 0
 344                         && mDevHitCountdown < (TAPS_TO_BE_A_DEVELOPER-2)) {
 345                     if (mDevHitToast != null) {
 346                         mDevHitToast.cancel();
 347                     }
 348                     mDevHitToast = Toast.makeText(getActivity(), getResources().getQuantityString(
 349                             R.plurals.show_dev_countdown_cm, mDevHitCountdown, mDevHitCountdown),
 350                             Toast.LENGTH_SHORT);
 351                     mDevHitToast.show();
 352                 }
 353             } else if (mDevHitCountdown < 0) {
 354                 if (mDevHitToast != null) {
 355                     mDevHitToast.cancel();
 356                 }
 357                 mDevHitToast = Toast.makeText(getActivity(), R.string.show_dev_already_cm,
 358                         Toast.LENGTH_LONG);
 359                 mDevHitToast.show();
 360             }
 361         } else if (preference.getKey().equals(KEY_DEVICE_FEEDBACK)) {
 362             sendFeedback();
 363         } else if(preference.getKey().equals(KEY_SYSTEM_UPDATE_SETTINGS)) {
 364             CarrierConfigManager configManager =
 365                     (CarrierConfigManager) getSystemService(Context.CARRIER_CONFIG_SERVICE);
 366             PersistableBundle b = configManager.getConfig();
 367             if (b.getBoolean(CarrierConfigManager.KEY_CI_ACTION_ON_SYS_UPDATE_BOOL)) {
 368                 ciActionOnSysUpdate(b);
 369             }
 370         } else if (preference.getKey().equals(KEY_MOD_VERSION)) {
 371             System.arraycopy(mHits, 1, mHits, 0, mHits.length-1);
 372             mHits[mHits.length-1] = SystemClock.uptimeMillis();
 373             if (mHits[0] >= (SystemClock.uptimeMillis()-500)) {
 374                 Intent intent = new Intent(Intent.ACTION_MAIN);
 375                 intent.putExtra("is_cm", true);
 376                 intent.setClassName("android",
 377                         com.android.internal.app.PlatLogoActivity.class.getName());
 378                 try {
 379                     startActivity(intent);
 380                 } catch (Exception e) {
 381                     Log.e(LOG_TAG, "Unable to start activity " + intent.toString());
 382                 }
 383             }
 384         }
 385         return super.onPreferenceTreeClick(preferenceScreen, preference);
 386     }
 387
 388     /**
 389      * Trigger client initiated action (send intent) on system update
 390      */
 391     private void ciActionOnSysUpdate(PersistableBundle b) {
 392         String intentStr = b.getString(CarrierConfigManager.
 393                 KEY_CI_ACTION_ON_SYS_UPDATE_INTENT_STRING);
 394         if (!TextUtils.isEmpty(intentStr)) {
 395             String extra = b.getString(CarrierConfigManager.
 396                     KEY_CI_ACTION_ON_SYS_UPDATE_EXTRA_STRING);
 397             String extraVal = b.getString(CarrierConfigManager.
 398                     KEY_CI_ACTION_ON_SYS_UPDATE_EXTRA_VAL_STRING);
 399
 400             Intent intent = new Intent(intentStr);
 401             if (!TextUtils.isEmpty(extra)) {
 402                 intent.putExtra(extra, extraVal);
 403             }
 404             Log.d(LOG_TAG, "ciActionOnSysUpdate: broadcasting intent " + intentStr +
 405                     " with extra " + extra + ", " + extraVal);
 406             getActivity().getApplicationContext().sendBroadcast(intent);
 407         }
 408     }
 409
 410     private void removePreferenceIfPropertyMissing(PreferenceGroup preferenceGroup,
 411             String preference, String property ) {
 412         if (SystemProperties.get(property).equals("")) {
 413             // Property is missing so remove preference from group
 414             try {
 415                 preferenceGroup.removePreference(findPreference(preference));
 416             } catch (RuntimeException e) {
 417                 Log.d(LOG_TAG, "Property '" + property + "' missing and no '"
 418                         + preference + "' preference");
 419             }
 420         }
 421     }
 422
 423     private void removePreferenceIfBoolFalse(String preference, int resId) {
 424         if (!getResources().getBoolean(resId)) {
 425             Preference pref = findPreference(preference);
 426             if (pref != null) {
 427                 getPreferenceScreen().removePreference(pref);
 428             }
 429         }
 430     }
 431
 432     private void setStringSummary(String preference, String value) {
 433         try {
 434             findPreference(preference).setSummary(value);
 435         } catch (RuntimeException e) {
 436             findPreference(preference).setSummary(
 437                 getResources().getString(R.string.device_info_default));
 438         }
 439     }
 440
 441     private void setValueSummary(String preference, String property) {
 442         try {
 443             findPreference(preference).setSummary(
 444                     SystemProperties.get(property,
 445                             getResources().getString(R.string.device_info_default)));
 446         } catch (RuntimeException e) {
 447             // No recovery
 448         }
 449     }
 450
 451     private void setExplicitValueSummary(String preference, String value) {
 452         try {
 453             findPreference(preference).setSummary(value);
 454         } catch (RuntimeException e) {
 455             // No recovery
 456         }
 457     }
 458
 459     private void sendFeedback() {
 460         String reporterPackage = getFeedbackReporterPackage(getActivity());
 461         if (TextUtils.isEmpty(reporterPackage)) {
 462             return;
 463         }
 464         Intent intent = new Intent(Intent.ACTION_BUG_REPORT);
 465         intent.setPackage(reporterPackage);
 466         startActivityForResult(intent, 0);
 467     }
 468
 469     /**
 470      * Reads a line from the specified file.
 471      * @param filename the file to read from
 472      * @return the first line, if any.
 473      * @throws IOException if the file couldn't be read
 474      */
 475     private static String readLine(String filename) throws IOException {
 476         BufferedReader reader = new BufferedReader(new FileReader(filename), 256);
 477         try {
 478             return reader.readLine();
 479         } finally {
 480             reader.close();
 481         }
 482     }
 483
 484     public static String getFormattedKernelVersion() {
 485         try {
 486             return formatKernelVersion(readLine(FILENAME_PROC_VERSION));
 487
 488         } catch (IOException e) {
 489             Log.e(LOG_TAG,
 490                 "IO Exception when getting kernel version for Device Info screen",
 491                 e);
 492
 493             return "Unavailable";
 494         }
 495     }
 496
 497     private static String constructApiLevelString() {
 498         int sdkInt = cyanogenmod.os.Build.CM_VERSION.SDK_INT;
 499         StringBuilder builder = new StringBuilder();
 500         builder.append(cyanogenmod.os.Build.getNameForSDKInt(sdkInt))
 501                 .append(" (" + sdkInt + ")");
 502         return builder.toString();
 503     }
 504
 505     public static String formatKernelVersion(String rawKernelVersion) {
 506         // Example (see tests for more):
 507         // Linux version 3.0.31-g6fb96c9 (android-build@xxx.xxx.xxx.xxx.com) \
 508         //     (gcc version 4.6.x-xxx 20120106 (prerelease) (GCC) ) #1 SMP PREEMPT \
 509         //     Thu Jun 28 11:02:39 PDT 2012
 510
 511         final String PROC_VERSION_REGEX =
 512             "Linux version (\\S+) " + /* group 1: "3.0.31-g6fb96c9" */
 513             "\\((\\S+?)\\) " +        /* group 2: "x@y.com" (kernel builder) */
 514             "(?:\\(gcc.+? \\)) " +    /* ignore: GCC version information */
 515             "(#\\d+) " +              /* group 3: "#1" */
 516             "(?:.*?)?" +              /* ignore: optional SMP, PREEMPT, and any CONFIG_FLAGS */
 517             "((Sun|Mon|Tue|Wed|Thu|Fri|Sat).+)"; /* group 4: "Thu Jun 28 11:02:39 PDT 2012" */
 518
 519         Matcher m = Pattern.compile(PROC_VERSION_REGEX).matcher(rawKernelVersion);
 520         if (!m.matches()) {
 521             Log.e(LOG_TAG, "Regex did not match on /proc/version: " + rawKernelVersion);
 522             return "Unavailable";
 523         } else if (m.groupCount() < 4) {
 524             Log.e(LOG_TAG, "Regex match on /proc/version only returned " + m.groupCount()
 525                     + " groups");
 526             return "Unavailable";
 527         }
 528         return m.group(1) + "\n" +                 // 3.0.31-g6fb96c9
 529             m.group(2) + " " + m.group(3) + "\n" + // x@y.com #1
 530             m.group(4);                            // Thu Jun 28 11:02:39 PDT 2012
 531     }
 532
 533     /**
 534      * Returns " (ENGINEERING)" if the msv file has a zero value, else returns "".
 535      * @return a string to append to the model number description.
 536      */
 537     private String getMsvSuffix() {
 538         // Production devices should have a non-zero value. If we can't read it, assume it's a
 539         // production device so that we don't accidentally show that it's an ENGINEERING device.
 540         try {
 541             String msv = readLine(FILENAME_MSV);
 542             // Parse as a hex number. If it evaluates to a zero, then it's an engineering build.
 543             if (Long.parseLong(msv, 16) == 0) {
 544                 return " (ENGINEERING)";
 545             }
 546         } catch (IOException ioe) {
 547             // Fail quietly, as the file may not exist on some devices.
 548         } catch (NumberFormatException nfe) {
 549             // Fail quietly, returning empty string should be sufficient
 550         }
 551         return "";
 552     }
 553
 554     private static String getFeedbackReporterPackage(Context context) {
 555         final String feedbackReporter =
 556                 context.getResources().getString(R.string.oem_preferred_feedback_reporter);
 557         if (TextUtils.isEmpty(feedbackReporter)) {
 558             // Reporter not configured. Return.
 559             return feedbackReporter;
 560         }
 561         // Additional checks to ensure the reporter is on system image, and reporter is
 562         // configured to listen to the intent. Otherwise, dont show the "send feedback" option.
 563         final Intent intent = new Intent(Intent.ACTION_BUG_REPORT);
 564
 565         PackageManager pm = context.getPackageManager();
 566         List<ResolveInfo> resolvedPackages =
 567                 pm.queryIntentActivities(intent, PackageManager.GET_RESOLVED_FILTER);
 568         for (ResolveInfo info : resolvedPackages) {
 569             if (info.activityInfo != null) {
 570                 if (!TextUtils.isEmpty(info.activityInfo.packageName)) {
 571                     try {
 572                         ApplicationInfo ai = pm.getApplicationInfo(info.activityInfo.packageName, 0);
 573                         if ((ai.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
 574                             // Package is on the system image
 575                             if (TextUtils.equals(
 576                                         info.activityInfo.packageName, feedbackReporter)) {
 577                                 return feedbackReporter;
 578                             }
 579                         }
 580                     } catch (PackageManager.NameNotFoundException e) {
 581                          // No need to do anything here.
 582                     }
 583                 }
 584             }
 585         }
 586         return null;
 587     }
 588
 589     /**
 590      * For Search.
 591      */
 592     public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
 593         new BaseSearchIndexProvider() {
 594
 595             @Override
 596             public List<SearchIndexableResource> getXmlResourcesToIndex(
 597                     Context context, boolean enabled) {
 598                 final SearchIndexableResource sir = new SearchIndexableResource(context);
 599                 sir.xmlResId = R.xml.device_info_settings;
 600                 return Arrays.asList(sir);
 601             }
 602
 603             @Override
 604             public List<String> getNonIndexableKeys(Context context) {
 605                 final List<String> keys = new ArrayList<String>();
 606                 if (isPropertyMissing(PROPERTY_SELINUX_STATUS)) {
 607                     keys.add(KEY_SELINUX_STATUS);
 608                 }
 609                 if (isPropertyMissing(PROPERTY_URL_SAFETYLEGAL)) {
 610                     keys.add(KEY_SAFETY_LEGAL);
 611                 }
 612                 if (isPropertyMissing(PROPERTY_EQUIPMENT_ID)) {
 613                     keys.add(KEY_EQUIPMENT_ID);
 614                 }
 615                 // Remove Baseband version if wifi-only device
 616                 if (Utils.isWifiOnly(context)) {
 617                     keys.add((KEY_BASEBAND_VERSION));
 618                 }
 619                 // Dont show feedback option if there is no reporter.
 620                 if (TextUtils.isEmpty(getFeedbackReporterPackage(context))) {
 621                     keys.add(KEY_DEVICE_FEEDBACK);
 622                 }
 623                 if (UserHandle.myUserId() != UserHandle.USER_OWNER) {
 624                     keys.add(KEY_SYSTEM_UPDATE_SETTINGS);
 625                 }
 626                 if (!context.getResources().getBoolean(
 627                         R.bool.config_additional_system_update_setting_enable)) {
 628                     keys.add(KEY_UPDATE_SETTING);
 629                 }
 630                 return keys;
 631             }
 632
 633             private boolean isPropertyMissing(String property) {
 634                 return SystemProperties.get(property).equals("");
 635             }
 636         };
 637
 638     private boolean removePreferenceIfPackageNotInstalled(Preference preference) {
 639         String intentUri=((PreferenceScreen) preference).getIntent().toUri(1);
 640         Pattern pattern = Pattern.compile("component=([^/]+)/");
 641         Matcher matcher = pattern.matcher(intentUri);
 642
 643         String packageName=matcher.find()?matcher.group(1):null;
 644         if(packageName != null) {
 645             try {
 646                 PackageInfo pi = getPackageManager().getPackageInfo(packageName,
 647                         PackageManager.GET_ACTIVITIES);
 648                 if (!pi.applicationInfo.enabled) {
 649                     Log.e(LOG_TAG,"package "+packageName+" is disabled, hiding preference.");
 650                     getPreferenceScreen().removePreference(preference);
 651                     return true;
 652                 }
 653             } catch (NameNotFoundException e) {
 654                 Log.e(LOG_TAG,"package "+packageName+" not installed, hiding preference.");
 655                 getPreferenceScreen().removePreference(preference);
 656                 return true;
 657             }
 658         }
 659         return false;
 660     }
 661 }
 662