634 lines
25 KiB
Java
634 lines
25 KiB
Java
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings;
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import android.app.Activity;
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import android.app.AlertDialog;
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import android.app.Dialog;
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import android.content.ContentQueryMap;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.content.SharedPreferences;
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import android.content.pm.PackageManager.NameNotFoundException;
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import android.database.Cursor;
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import android.location.LocationManager;
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import android.os.Bundle;
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import android.preference.CheckBoxPreference;
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import android.preference.EditTextPreference;
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import android.preference.Preference;
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import android.preference.PreferenceActivity;
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import android.preference.PreferenceCategory;
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import android.preference.PreferenceGroup;
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import android.preference.PreferenceScreen;
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import android.provider.Settings;
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import android.security.Credentials;
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import android.security.KeyStore;
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import android.text.Html;
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import android.text.TextUtils;
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import android.text.method.LinkMovementMethod;
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import android.util.Log;
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import android.view.View;
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import android.widget.TextView;
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import android.widget.Toast;
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import com.android.internal.widget.LockPatternUtils;
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import android.telephony.TelephonyManager;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Observable;
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import java.util.Observer;
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/**
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* Gesture lock pattern settings.
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*/
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public class SecuritySettings extends PreferenceActivity {
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// Lock Settings
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private static final String KEY_LOCK_ENABLED = "lockenabled";
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private static final String KEY_VISIBLE_PATTERN = "visiblepattern";
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private static final String KEY_TACTILE_FEEDBACK_ENABLED = "tactilefeedback";
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private static final int CONFIRM_PATTERN_THEN_DISABLE_AND_CLEAR_REQUEST_CODE = 55;
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private static final String PREFS_NAME = "location_prefs";
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private static final String PREFS_USE_LOCATION = "use_location";
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private LockPatternUtils mLockPatternUtils;
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private CheckBoxPreference mLockEnabled;
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private CheckBoxPreference mVisiblePattern;
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private CheckBoxPreference mTactileFeedback;
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private Preference mChoosePattern;
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private CheckBoxPreference mShowPassword;
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// Location Settings
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private static final String LOCATION_CATEGORY = "location_category";
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private static final String LOCATION_NETWORK = "location_network";
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private static final String LOCATION_GPS = "location_gps";
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private static final String ASSISTED_GPS = "assisted_gps";
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// Credential storage
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private static final int CSTOR_MIN_PASSWORD_LENGTH = 8;
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private static final int CSTOR_INIT_DIALOG = 1;
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private static final int CSTOR_CHANGE_PASSWORD_DIALOG = 2;
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private static final int CSTOR_UNLOCK_DIALOG = 3;
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private static final int CSTOR_RESET_DIALOG = 4;
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private CredentialStorage mCredentialStorage = new CredentialStorage();
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private CheckBoxPreference mNetwork;
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private CheckBoxPreference mGps;
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private CheckBoxPreference mAssistedGps;
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// These provide support for receiving notification when Location Manager settings change.
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// This is necessary because the Network Location Provider can change settings
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// if the user does not confirm enabling the provider.
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private ContentQueryMap mContentQueryMap;
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private final class SettingsObserver implements Observer {
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public void update(Observable o, Object arg) {
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updateToggles();
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}
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}
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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addPreferencesFromResource(R.xml.security_settings);
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mLockPatternUtils = new LockPatternUtils(getContentResolver());
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createPreferenceHierarchy();
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mNetwork = (CheckBoxPreference) getPreferenceScreen().findPreference(LOCATION_NETWORK);
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mGps = (CheckBoxPreference) getPreferenceScreen().findPreference(LOCATION_GPS);
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mAssistedGps = (CheckBoxPreference) getPreferenceScreen().findPreference(ASSISTED_GPS);
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updateToggles();
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// listen for Location Manager settings changes
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Cursor settingsCursor = getContentResolver().query(Settings.Secure.CONTENT_URI, null,
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"(" + Settings.System.NAME + "=?)",
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new String[]{Settings.Secure.LOCATION_PROVIDERS_ALLOWED},
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null);
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mContentQueryMap = new ContentQueryMap(settingsCursor, Settings.System.NAME, true, null);
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mContentQueryMap.addObserver(new SettingsObserver());
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mCredentialStorage.handleIntent(getIntent());
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}
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private PreferenceScreen createPreferenceHierarchy() {
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// Root
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PreferenceScreen root = this.getPreferenceScreen();
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// Inline preferences
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PreferenceCategory inlinePrefCat = new PreferenceCategory(this);
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inlinePrefCat.setTitle(R.string.lock_settings_title);
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root.addPreference(inlinePrefCat);
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// change pattern lock
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Intent intent = new Intent();
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intent.setClassName("com.android.settings",
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"com.android.settings.ChooseLockPatternTutorial");
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mChoosePattern = getPreferenceManager().createPreferenceScreen(this);
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mChoosePattern.setIntent(intent);
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inlinePrefCat.addPreference(mChoosePattern);
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// autolock toggle
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mLockEnabled = new LockEnabledPref(this);
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mLockEnabled.setTitle(R.string.lockpattern_settings_enable_title);
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mLockEnabled.setSummary(R.string.lockpattern_settings_enable_summary);
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mLockEnabled.setKey(KEY_LOCK_ENABLED);
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inlinePrefCat.addPreference(mLockEnabled);
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// visible pattern
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mVisiblePattern = new CheckBoxPreference(this);
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mVisiblePattern.setKey(KEY_VISIBLE_PATTERN);
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mVisiblePattern.setTitle(R.string.lockpattern_settings_enable_visible_pattern_title);
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inlinePrefCat.addPreference(mVisiblePattern);
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// tactile feedback
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mTactileFeedback = new CheckBoxPreference(this);
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mTactileFeedback.setKey(KEY_TACTILE_FEEDBACK_ENABLED);
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mTactileFeedback.setTitle(R.string.lockpattern_settings_enable_tactile_feedback_title);
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inlinePrefCat.addPreference(mTactileFeedback);
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int activePhoneType = TelephonyManager.getDefault().getPhoneType();
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// do not display SIM lock for CDMA phone
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if (TelephonyManager.PHONE_TYPE_CDMA != activePhoneType)
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{
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PreferenceScreen simLockPreferences = getPreferenceManager()
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.createPreferenceScreen(this);
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simLockPreferences.setTitle(R.string.sim_lock_settings_category);
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// Intent to launch SIM lock settings
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intent = new Intent();
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intent.setClassName("com.android.settings", "com.android.settings.IccLockSettings");
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simLockPreferences.setIntent(intent);
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PreferenceCategory simLockCat = new PreferenceCategory(this);
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simLockCat.setTitle(R.string.sim_lock_settings_title);
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root.addPreference(simLockCat);
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simLockCat.addPreference(simLockPreferences);
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}
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// Passwords
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PreferenceCategory passwordsCat = new PreferenceCategory(this);
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passwordsCat.setTitle(R.string.security_passwords_title);
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root.addPreference(passwordsCat);
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CheckBoxPreference showPassword = mShowPassword = new CheckBoxPreference(this);
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showPassword.setKey("show_password");
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showPassword.setTitle(R.string.show_password);
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showPassword.setSummary(R.string.show_password_summary);
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showPassword.setPersistent(false);
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passwordsCat.addPreference(showPassword);
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// Credential storage
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PreferenceCategory credentialsCat = new PreferenceCategory(this);
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credentialsCat.setTitle(R.string.credentials_category);
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root.addPreference(credentialsCat);
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mCredentialStorage.createPreferences(credentialsCat);
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return root;
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}
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@Override
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protected void onResume() {
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super.onResume();
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boolean patternExists = mLockPatternUtils.savedPatternExists();
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mLockEnabled.setEnabled(patternExists);
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mVisiblePattern.setEnabled(patternExists);
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mTactileFeedback.setEnabled(patternExists);
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mLockEnabled.setChecked(mLockPatternUtils.isLockPatternEnabled());
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mVisiblePattern.setChecked(mLockPatternUtils.isVisiblePatternEnabled());
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mTactileFeedback.setChecked(mLockPatternUtils.isTactileFeedbackEnabled());
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int chooseStringRes = mLockPatternUtils.savedPatternExists() ?
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R.string.lockpattern_settings_change_lock_pattern :
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R.string.lockpattern_settings_choose_lock_pattern;
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mChoosePattern.setTitle(chooseStringRes);
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mShowPassword.setChecked(Settings.System.getInt(getContentResolver(),
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Settings.System.TEXT_SHOW_PASSWORD, 1) != 0);
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mCredentialStorage.resume();
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}
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@Override
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public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen,
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Preference preference) {
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final String key = preference.getKey();
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if (KEY_LOCK_ENABLED.equals(key)) {
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mLockPatternUtils.setLockPatternEnabled(isToggled(preference));
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} else if (KEY_VISIBLE_PATTERN.equals(key)) {
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mLockPatternUtils.setVisiblePatternEnabled(isToggled(preference));
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} else if (KEY_TACTILE_FEEDBACK_ENABLED.equals(key)) {
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mLockPatternUtils.setTactileFeedbackEnabled(isToggled(preference));
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} else if (preference == mShowPassword) {
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Settings.System.putInt(getContentResolver(), Settings.System.TEXT_SHOW_PASSWORD,
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mShowPassword.isChecked() ? 1 : 0);
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} else if (preference == mNetwork) {
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Settings.Secure.setLocationProviderEnabled(getContentResolver(),
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LocationManager.NETWORK_PROVIDER, mNetwork.isChecked());
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} else if (preference == mGps) {
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boolean enabled = mGps.isChecked();
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Settings.Secure.setLocationProviderEnabled(getContentResolver(),
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LocationManager.GPS_PROVIDER, enabled);
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if (mAssistedGps != null) {
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mAssistedGps.setEnabled(enabled);
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}
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} else if (preference == mAssistedGps) {
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Settings.Secure.putInt(getContentResolver(), Settings.Secure.ASSISTED_GPS_ENABLED,
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mAssistedGps.isChecked() ? 1 : 0);
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}
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return false;
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}
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private void showPrivacyPolicy() {
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Intent intent = new Intent("android.settings.TERMS");
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startActivity(intent);
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}
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/*
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* Creates toggles for each available location provider
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*/
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private void updateToggles() {
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ContentResolver res = getContentResolver();
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boolean gpsEnabled = Settings.Secure.isLocationProviderEnabled(
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res, LocationManager.GPS_PROVIDER);
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mNetwork.setChecked(Settings.Secure.isLocationProviderEnabled(
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res, LocationManager.NETWORK_PROVIDER));
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mGps.setChecked(gpsEnabled);
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if (mAssistedGps != null) {
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mAssistedGps.setChecked(Settings.Secure.getInt(res,
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Settings.Secure.ASSISTED_GPS_ENABLED, 2) == 1);
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mAssistedGps.setEnabled(gpsEnabled);
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}
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}
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private boolean isToggled(Preference pref) {
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return ((CheckBoxPreference) pref).isChecked();
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}
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/**
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* For the user to disable keyguard, we first make them verify their
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* existing pattern.
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*/
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private class LockEnabledPref extends CheckBoxPreference {
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public LockEnabledPref(Context context) {
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super(context);
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}
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@Override
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protected void onClick() {
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if (mLockPatternUtils.savedPatternExists() && isChecked()) {
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confirmPatternThenDisableAndClear();
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} else {
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super.onClick();
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}
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}
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}
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/**
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* Launch screen to confirm the existing lock pattern.
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* @see #onActivityResult(int, int, android.content.Intent)
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*/
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private void confirmPatternThenDisableAndClear() {
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final Intent intent = new Intent();
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intent.setClassName("com.android.settings", "com.android.settings.ConfirmLockPattern");
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startActivityForResult(intent, CONFIRM_PATTERN_THEN_DISABLE_AND_CLEAR_REQUEST_CODE);
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}
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/**
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* @see #confirmPatternThenDisableAndClear
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*/
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@Override
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protected void onActivityResult(int requestCode, int resultCode, Intent data) {
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super.onActivityResult(requestCode, resultCode, data);
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final boolean resultOk = resultCode == Activity.RESULT_OK;
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if ((requestCode == CONFIRM_PATTERN_THEN_DISABLE_AND_CLEAR_REQUEST_CODE)
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&& resultOk) {
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mLockPatternUtils.setLockPatternEnabled(false);
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mLockPatternUtils.saveLockPattern(null);
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}
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}
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@Override
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protected Dialog onCreateDialog(int id) {
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return mCredentialStorage.createDialog(id);
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}
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private class CredentialStorage implements DialogInterface.OnClickListener,
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DialogInterface.OnDismissListener, Preference.OnPreferenceChangeListener,
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Preference.OnPreferenceClickListener {
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private static final int MINIMUM_PASSWORD_LENGTH = 8;
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private static final int UNLOCK_DIALOG = 1;
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private static final int PASSWORD_DIALOG = 2;
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private static final int RESET_DIALOG = 3;
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private KeyStore mKeyStore = KeyStore.getInstance();
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private int mState;
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private int mDialogId;
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private boolean mSubmit;
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private CheckBoxPreference mAccessCheckBox;
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private Preference mInstallButton;
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private Preference mPasswordButton;
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private Preference mResetButton;
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private Intent mExternalIntent;
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void handleIntent(Intent intent) {
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if (intent != null) {
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if (Credentials.UNLOCK_ACTION.equals(intent.getAction())) {
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mExternalIntent = intent;
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showDialog((mState == KeyStore.UNINITIALIZED) ?
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PASSWORD_DIALOG : UNLOCK_DIALOG);
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}
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}
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}
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void resume() {
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mState = mKeyStore.test();
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updatePreferences(mState);
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}
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Dialog createDialog(int id) {
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mDialogId = id;
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switch (id) {
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case UNLOCK_DIALOG:
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return createUnlockDialog();
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case PASSWORD_DIALOG:
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return createPasswordDialog();
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case RESET_DIALOG:
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return createResetDialog();
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}
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return null;
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}
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private void initialize(String password) {
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mKeyStore.password(password);
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updatePreferences(KeyStore.NO_ERROR);
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}
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private void reset() {
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mKeyStore.reset();
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updatePreferences(KeyStore.UNINITIALIZED);
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}
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private void lock() {
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mKeyStore.lock();
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updatePreferences(KeyStore.LOCKED);
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}
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private int unlock(String password) {
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mKeyStore.unlock(password);
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return mKeyStore.getLastError();
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}
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private int changePassword(String oldPassword, String newPassword) {
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mKeyStore.password(oldPassword, newPassword);
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return mKeyStore.getLastError();
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}
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public boolean onPreferenceChange(Preference preference, Object value) {
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if (preference == mAccessCheckBox) {
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if ((Boolean) value) {
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showDialog((mState == KeyStore.UNINITIALIZED) ?
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PASSWORD_DIALOG : UNLOCK_DIALOG);
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} else {
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lock();
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}
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return true;
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}
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return false;
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}
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public boolean onPreferenceClick(Preference preference) {
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if (preference == mInstallButton) {
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Credentials.getInstance().installFromSdCard(SecuritySettings.this);
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} else if (preference == mPasswordButton) {
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showDialog(PASSWORD_DIALOG);
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} else if (preference == mResetButton) {
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showDialog(RESET_DIALOG);
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} else {
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return false;
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}
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return true;
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}
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public void onClick(DialogInterface dialog, int button) {
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mSubmit = (button == DialogInterface.BUTTON_POSITIVE);
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if (button == DialogInterface.BUTTON_NEUTRAL) {
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reset();
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}
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}
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public void onDismiss(DialogInterface dialog) {
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if (mSubmit && !isFinishing()) {
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mSubmit = false;
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if (!checkPassword((Dialog) dialog)) {
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showDialog(mDialogId);
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return;
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}
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}
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removeDialog(mDialogId);
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updatePreferences(mState);
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if (mExternalIntent != null) {
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mExternalIntent = null;
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finish();
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}
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}
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// Return true if there is no error.
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private boolean checkPassword(Dialog dialog) {
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String oldPassword = getText(dialog, R.id.old_password);
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String newPassword = getText(dialog, R.id.new_password);
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String confirmPassword = getText(dialog, R.id.confirm_password);
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if (oldPassword != null && oldPassword.length() == 0) {
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showError(dialog, R.string.credentials_password_empty);
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return false;
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} else if (newPassword == null) {
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return !checkError(dialog, unlock(oldPassword));
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} else if (newPassword.length() == 0 || confirmPassword.length() == 0) {
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showError(dialog, R.string.credentials_passwords_empty);
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} else if (newPassword.length() < MINIMUM_PASSWORD_LENGTH) {
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showError(dialog, R.string.credentials_password_too_short);
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} else if (!newPassword.equals(confirmPassword)) {
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showError(dialog, R.string.credentials_passwords_mismatch);
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} else if (oldPassword == null) {
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initialize(newPassword);
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return true;
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} else {
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return !checkError(dialog, changePassword(oldPassword, newPassword));
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}
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return false;
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}
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// Return false if there is no error.
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private boolean checkError(Dialog dialog, int error) {
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if (error == KeyStore.NO_ERROR) {
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updatePreferences(KeyStore.NO_ERROR);
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return false;
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}
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if (error == KeyStore.UNINITIALIZED) {
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updatePreferences(KeyStore.UNINITIALIZED);
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return false;
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}
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if (error < KeyStore.WRONG_PASSWORD) {
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return false;
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}
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int count = error - KeyStore.WRONG_PASSWORD + 1;
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if (count > 3) {
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showError(dialog, R.string.credentials_wrong_password);
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} else if (count == 1) {
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showError(dialog, R.string.credentials_reset_warning);
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} else {
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showError(dialog, R.string.credentials_reset_warning_plural, count);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
private String getText(Dialog dialog, int viewId) {
|
|
TextView view = (TextView) dialog.findViewById(viewId);
|
|
return (view == null || view.getVisibility() == View.GONE) ? null :
|
|
view.getText().toString();
|
|
}
|
|
|
|
private void showError(Dialog dialog, int stringId, Object... formatArgs) {
|
|
TextView view = (TextView) dialog.findViewById(R.id.error);
|
|
if (view != null) {
|
|
if (formatArgs == null || formatArgs.length == 0) {
|
|
view.setText(stringId);
|
|
} else {
|
|
view.setText(dialog.getContext().getString(stringId, formatArgs));
|
|
}
|
|
view.setVisibility(View.VISIBLE);
|
|
}
|
|
}
|
|
|
|
private void createPreferences(PreferenceCategory category) {
|
|
mAccessCheckBox = new CheckBoxPreference(SecuritySettings.this);
|
|
mAccessCheckBox.setTitle(R.string.credentials_access);
|
|
mAccessCheckBox.setSummary(R.string.credentials_access_summary);
|
|
mAccessCheckBox.setOnPreferenceChangeListener(this);
|
|
category.addPreference(mAccessCheckBox);
|
|
|
|
mInstallButton = new Preference(SecuritySettings.this);
|
|
mInstallButton.setTitle(R.string.credentials_install_certificates);
|
|
mInstallButton.setSummary(R.string.credentials_install_certificates_summary);
|
|
mInstallButton.setOnPreferenceClickListener(this);
|
|
category.addPreference(mInstallButton);
|
|
|
|
mPasswordButton = new Preference(SecuritySettings.this);
|
|
mPasswordButton.setTitle(R.string.credentials_set_password);
|
|
mPasswordButton.setSummary(R.string.credentials_set_password_summary);
|
|
mPasswordButton.setOnPreferenceClickListener(this);
|
|
category.addPreference(mPasswordButton);
|
|
|
|
mResetButton = new Preference(SecuritySettings.this);
|
|
mResetButton.setTitle(R.string.credentials_reset);
|
|
mResetButton.setSummary(R.string.credentials_reset_summary);
|
|
mResetButton.setOnPreferenceClickListener(this);
|
|
category.addPreference(mResetButton);
|
|
}
|
|
|
|
private void updatePreferences(int state) {
|
|
mAccessCheckBox.setEnabled(state != KeyStore.UNINITIALIZED);
|
|
mAccessCheckBox.setChecked(state == KeyStore.NO_ERROR);
|
|
mResetButton.setEnabled(state != KeyStore.UNINITIALIZED);
|
|
|
|
// Show a toast message if the state is changed.
|
|
if (mState == state) return;
|
|
if (state == KeyStore.NO_ERROR) {
|
|
Toast.makeText(SecuritySettings.this, R.string.credentials_enabled,
|
|
Toast.LENGTH_SHORT).show();
|
|
} else if (state == KeyStore.UNINITIALIZED) {
|
|
Toast.makeText(SecuritySettings.this, R.string.credentials_erased,
|
|
Toast.LENGTH_SHORT).show();
|
|
} else if (state == KeyStore.LOCKED) {
|
|
Toast.makeText(SecuritySettings.this, R.string.credentials_disabled,
|
|
Toast.LENGTH_SHORT).show();
|
|
}
|
|
mState = state;
|
|
}
|
|
|
|
private Dialog createUnlockDialog() {
|
|
View view = View.inflate(SecuritySettings.this,
|
|
R.layout.credentials_unlock_dialog, null);
|
|
|
|
// show extra hint only when the action comes from outside
|
|
if (mExternalIntent != null) {
|
|
view.findViewById(R.id.hint).setVisibility(View.VISIBLE);
|
|
}
|
|
|
|
Dialog dialog = new AlertDialog.Builder(SecuritySettings.this)
|
|
.setView(view)
|
|
.setTitle(R.string.credentials_unlock)
|
|
.setPositiveButton(android.R.string.ok, this)
|
|
.setNegativeButton(android.R.string.cancel, this)
|
|
.create();
|
|
dialog.setOnDismissListener(this);
|
|
return dialog;
|
|
}
|
|
|
|
private Dialog createPasswordDialog() {
|
|
View view = View.inflate(SecuritySettings.this,
|
|
R.layout.credentials_password_dialog, null);
|
|
|
|
if (mState == KeyStore.UNINITIALIZED) {
|
|
view.findViewById(R.id.hint).setVisibility(View.VISIBLE);
|
|
} else {
|
|
view.findViewById(R.id.old_password_prompt).setVisibility(View.VISIBLE);
|
|
view.findViewById(R.id.old_password).setVisibility(View.VISIBLE);
|
|
}
|
|
|
|
Dialog dialog = new AlertDialog.Builder(SecuritySettings.this)
|
|
.setView(view)
|
|
.setTitle(R.string.credentials_set_password)
|
|
.setPositiveButton(android.R.string.ok, this)
|
|
.setNegativeButton(android.R.string.cancel, this)
|
|
.create();
|
|
dialog.setOnDismissListener(this);
|
|
return dialog;
|
|
}
|
|
|
|
private Dialog createResetDialog() {
|
|
return new AlertDialog.Builder(SecuritySettings.this)
|
|
.setTitle(android.R.string.dialog_alert_title)
|
|
.setIcon(android.R.drawable.ic_dialog_alert)
|
|
.setMessage(R.string.credentials_reset_hint)
|
|
.setNeutralButton(getString(android.R.string.ok), this)
|
|
.setNegativeButton(getString(android.R.string.cancel), this)
|
|
.create();
|
|
}
|
|
}
|
|
}
|