ChooseLockGeneric.java revision cf26bb2dcc83803678bcd37bb58b677209ffb3fc
1abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn/* 2abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn * Copyright (C) 2010 The Android Open Source Project 3abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn * 4abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn * Licensed under the Apache License, Version 2.0 (the "License"); 5abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn * you may not use this file except in compliance with the License. 6abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn * You may obtain a copy of the License at 7abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn * 8abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn * http://www.apache.org/licenses/LICENSE-2.0 9abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn * 10abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn * Unless required by applicable law or agreed to in writing, software 11abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn * distributed under the License is distributed on an "AS IS" BASIS, 12abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn * See the License for the specific language governing permissions and 14abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn * limitations under the License. 15abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn */ 16abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn 17abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackbornpackage com.android.settings; 18abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn 1917e9e1933055b207473b488595b2887bfcaea32eJim Millerimport android.app.Activity; 205541a86efe5f26956e54de49c4a59bf1dab79a78Jim Millerimport android.app.PendingIntent; 214037c7f27c849a1ada0980ad881636fc940a0b85Dianne Hackbornimport android.app.admin.DevicePolicyManager; 22abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackbornimport android.content.Context; 23abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackbornimport android.content.Intent; 24abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackbornimport android.os.Bundle; 255541a86efe5f26956e54de49c4a59bf1dab79a78Jim Millerimport android.os.SystemProperties; 26bbb4afa19f75694c585506b0c091372d60e07ca7Jim Millerimport android.preference.Preference; 27bbb4afa19f75694c585506b0c091372d60e07ca7Jim Millerimport android.preference.PreferenceActivity; 28bbb4afa19f75694c585506b0c091372d60e07ca7Jim Millerimport android.preference.PreferenceScreen; 29d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstromimport android.security.KeyStore; 30cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasaniimport android.view.LayoutInflater; 31cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasaniimport android.view.View; 32cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasaniimport android.view.ViewGroup; 33cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasaniimport android.widget.ListView; 34bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller 356465054995f8470e52ecaf68ea9508a28f8a5363Gilles Debunneimport com.android.internal.widget.LockPatternUtils; 366465054995f8470e52ecaf68ea9508a28f8a5363Gilles Debunne 37bbb4afa19f75694c585506b0c091372d60e07ca7Jim Millerpublic class ChooseLockGeneric extends PreferenceActivity { 38abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn 39abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn @Override 4017e9e1933055b207473b488595b2887bfcaea32eJim Miller public Intent getIntent() { 4117e9e1933055b207473b488595b2887bfcaea32eJim Miller Intent modIntent = new Intent(super.getIntent()); 4217e9e1933055b207473b488595b2887bfcaea32eJim Miller modIntent.putExtra(EXTRA_SHOW_FRAGMENT, ChooseLockGenericFragment.class.getName()); 4317e9e1933055b207473b488595b2887bfcaea32eJim Miller modIntent.putExtra(EXTRA_NO_HEADERS, true); 4417e9e1933055b207473b488595b2887bfcaea32eJim Miller return modIntent; 4517e9e1933055b207473b488595b2887bfcaea32eJim Miller } 46bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller 4717e9e1933055b207473b488595b2887bfcaea32eJim Miller public static class ChooseLockGenericFragment extends SettingsPreferenceFragment { 4817e9e1933055b207473b488595b2887bfcaea32eJim Miller private static final int MIN_PASSWORD_LENGTH = 4; 495bae8739ea55702ec38df13550dd3f32137a9935Danielle Millett private static final String KEY_UNLOCK_BACKUP_INFO = "unlock_backup_info"; 5017e9e1933055b207473b488595b2887bfcaea32eJim Miller private static final String KEY_UNLOCK_SET_OFF = "unlock_set_off"; 5117e9e1933055b207473b488595b2887bfcaea32eJim Miller private static final String KEY_UNLOCK_SET_NONE = "unlock_set_none"; 525541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller private static final String KEY_UNLOCK_SET_BIOMETRIC_WEAK = "unlock_set_biometric_weak"; 5317e9e1933055b207473b488595b2887bfcaea32eJim Miller private static final String KEY_UNLOCK_SET_PIN = "unlock_set_pin"; 5417e9e1933055b207473b488595b2887bfcaea32eJim Miller private static final String KEY_UNLOCK_SET_PASSWORD = "unlock_set_password"; 5517e9e1933055b207473b488595b2887bfcaea32eJim Miller private static final String KEY_UNLOCK_SET_PATTERN = "unlock_set_pattern"; 5617e9e1933055b207473b488595b2887bfcaea32eJim Miller private static final int CONFIRM_EXISTING_REQUEST = 100; 5717e9e1933055b207473b488595b2887bfcaea32eJim Miller private static final String PASSWORD_CONFIRMED = "password_confirmed"; 5817e9e1933055b207473b488595b2887bfcaea32eJim Miller private static final String CONFIRM_CREDENTIALS = "confirm_credentials"; 59d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom public static final String MINIMUM_QUALITY_KEY = "minimum_quality"; 6017e9e1933055b207473b488595b2887bfcaea32eJim Miller 6117e9e1933055b207473b488595b2887bfcaea32eJim Miller private ChooseLockSettingsHelper mChooseLockSettingsHelper; 6217e9e1933055b207473b488595b2887bfcaea32eJim Miller private DevicePolicyManager mDPM; 63d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom private KeyStore mKeyStore; 6417e9e1933055b207473b488595b2887bfcaea32eJim Miller private boolean mPasswordConfirmed = false; 6517e9e1933055b207473b488595b2887bfcaea32eJim Miller 6617e9e1933055b207473b488595b2887bfcaea32eJim Miller @Override 6717e9e1933055b207473b488595b2887bfcaea32eJim Miller public void onCreate(Bundle savedInstanceState) { 6817e9e1933055b207473b488595b2887bfcaea32eJim Miller super.onCreate(savedInstanceState); 6917e9e1933055b207473b488595b2887bfcaea32eJim Miller 7017e9e1933055b207473b488595b2887bfcaea32eJim Miller mDPM = (DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE); 71d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom mKeyStore = KeyStore.getInstance(); 7217e9e1933055b207473b488595b2887bfcaea32eJim Miller mChooseLockSettingsHelper = new ChooseLockSettingsHelper(this.getActivity()); 7317e9e1933055b207473b488595b2887bfcaea32eJim Miller 74c474a88c2de30ea93ae03221b70e6365bb7f5f34Danielle Millett // Defaults to needing to confirm credentials 75c474a88c2de30ea93ae03221b70e6365bb7f5f34Danielle Millett final boolean confirmCredentials = getActivity().getIntent() 76c474a88c2de30ea93ae03221b70e6365bb7f5f34Danielle Millett .getBooleanExtra(CONFIRM_CREDENTIALS, true); 77c474a88c2de30ea93ae03221b70e6365bb7f5f34Danielle Millett mPasswordConfirmed = !confirmCredentials; 78c474a88c2de30ea93ae03221b70e6365bb7f5f34Danielle Millett 7917e9e1933055b207473b488595b2887bfcaea32eJim Miller if (savedInstanceState != null) { 8017e9e1933055b207473b488595b2887bfcaea32eJim Miller mPasswordConfirmed = savedInstanceState.getBoolean(PASSWORD_CONFIRMED); 8117e9e1933055b207473b488595b2887bfcaea32eJim Miller } 82bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller 8317e9e1933055b207473b488595b2887bfcaea32eJim Miller if (!mPasswordConfirmed) { 846370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler ChooseLockSettingsHelper helper = 856370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler new ChooseLockSettingsHelper(this.getActivity(), this); 8617e9e1933055b207473b488595b2887bfcaea32eJim Miller if (!helper.launchConfirmationActivity(CONFIRM_EXISTING_REQUEST, null, null)) { 8717e9e1933055b207473b488595b2887bfcaea32eJim Miller mPasswordConfirmed = true; // no password set, so no need to confirm 8817e9e1933055b207473b488595b2887bfcaea32eJim Miller updatePreferencesOrFinish(); 8917e9e1933055b207473b488595b2887bfcaea32eJim Miller } 9017e9e1933055b207473b488595b2887bfcaea32eJim Miller } else { 91bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller updatePreferencesOrFinish(); 92bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller } 93bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller } 94bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller 9517e9e1933055b207473b488595b2887bfcaea32eJim Miller @Override 9617e9e1933055b207473b488595b2887bfcaea32eJim Miller public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, 9717e9e1933055b207473b488595b2887bfcaea32eJim Miller Preference preference) { 9817e9e1933055b207473b488595b2887bfcaea32eJim Miller final String key = preference.getKey(); 9917e9e1933055b207473b488595b2887bfcaea32eJim Miller boolean handled = true; 10017e9e1933055b207473b488595b2887bfcaea32eJim Miller if (KEY_UNLOCK_SET_OFF.equals(key)) { 1016370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler updateUnlockMethodAndFinish( 1026370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED, true); 10317e9e1933055b207473b488595b2887bfcaea32eJim Miller } else if (KEY_UNLOCK_SET_NONE.equals(key)) { 1046370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler updateUnlockMethodAndFinish( 1056370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED, false); 1065541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller } else if (KEY_UNLOCK_SET_BIOMETRIC_WEAK.equals(key)) { 1075541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller updateUnlockMethodAndFinish( 1085541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK, false); 1095541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller }else if (KEY_UNLOCK_SET_PATTERN.equals(key)) { 1106370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler updateUnlockMethodAndFinish( 1116370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler DevicePolicyManager.PASSWORD_QUALITY_SOMETHING, false); 11217e9e1933055b207473b488595b2887bfcaea32eJim Miller } else if (KEY_UNLOCK_SET_PIN.equals(key)) { 1136370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler updateUnlockMethodAndFinish( 1146370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler DevicePolicyManager.PASSWORD_QUALITY_NUMERIC, false); 11517e9e1933055b207473b488595b2887bfcaea32eJim Miller } else if (KEY_UNLOCK_SET_PASSWORD.equals(key)) { 1166370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler updateUnlockMethodAndFinish( 1176370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC, false); 11817e9e1933055b207473b488595b2887bfcaea32eJim Miller } else { 11917e9e1933055b207473b488595b2887bfcaea32eJim Miller handled = false; 12017e9e1933055b207473b488595b2887bfcaea32eJim Miller } 12117e9e1933055b207473b488595b2887bfcaea32eJim Miller return handled; 122bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller } 123bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller 12417e9e1933055b207473b488595b2887bfcaea32eJim Miller @Override 125cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani public View onCreateView(LayoutInflater inflater, ViewGroup container, 126cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani Bundle savedInstanceState) { 127cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani View v = super.onCreateView(inflater, container, savedInstanceState); 128cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani final boolean onlyShowFallback = getActivity().getIntent() 129cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani .getBooleanExtra(LockPatternUtils.LOCKSCREEN_BIOMETRIC_WEAK_FALLBACK, false); 130cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani if (onlyShowFallback) { 131cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani View header = v.inflate(getActivity(), 132cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani R.layout.weak_biometric_fallback_header, null); 133cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani ((ListView) v.findViewById(android.R.id.list)).addHeaderView(header, null, false); 134cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani } 135cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani 136cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani return v; 137cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani } 138cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani 139cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani @Override 14017e9e1933055b207473b488595b2887bfcaea32eJim Miller public void onActivityResult(int requestCode, int resultCode, Intent data) { 14117e9e1933055b207473b488595b2887bfcaea32eJim Miller super.onActivityResult(requestCode, resultCode, data); 14217e9e1933055b207473b488595b2887bfcaea32eJim Miller if (requestCode == CONFIRM_EXISTING_REQUEST && resultCode == Activity.RESULT_OK) { 14317e9e1933055b207473b488595b2887bfcaea32eJim Miller mPasswordConfirmed = true; 14417e9e1933055b207473b488595b2887bfcaea32eJim Miller updatePreferencesOrFinish(); 14517e9e1933055b207473b488595b2887bfcaea32eJim Miller } else { 14617e9e1933055b207473b488595b2887bfcaea32eJim Miller getActivity().setResult(Activity.RESULT_CANCELED); 14717e9e1933055b207473b488595b2887bfcaea32eJim Miller finish(); 14817e9e1933055b207473b488595b2887bfcaea32eJim Miller } 149bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller } 150bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller 15117e9e1933055b207473b488595b2887bfcaea32eJim Miller @Override 15217e9e1933055b207473b488595b2887bfcaea32eJim Miller public void onSaveInstanceState(Bundle outState) { 15317e9e1933055b207473b488595b2887bfcaea32eJim Miller super.onSaveInstanceState(outState); 15417e9e1933055b207473b488595b2887bfcaea32eJim Miller // Saved so we don't force user to re-enter their password if configuration changes 15517e9e1933055b207473b488595b2887bfcaea32eJim Miller outState.putBoolean(PASSWORD_CONFIRMED, mPasswordConfirmed); 15617e9e1933055b207473b488595b2887bfcaea32eJim Miller } 157bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller 15817e9e1933055b207473b488595b2887bfcaea32eJim Miller private void updatePreferencesOrFinish() { 1595541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller Intent intent = getActivity().getIntent(); 1605541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller int quality = intent.getIntExtra(LockPatternUtils.PASSWORD_TYPE_KEY, -1); 16117e9e1933055b207473b488595b2887bfcaea32eJim Miller if (quality == -1) { 1626370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler // If caller didn't specify password quality, show UI and allow the user to choose. 1635541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller quality = intent.getIntExtra(MINIMUM_QUALITY_KEY, -1); 164d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom quality = upgradeQuality(quality); 16517e9e1933055b207473b488595b2887bfcaea32eJim Miller final PreferenceScreen prefScreen = getPreferenceScreen(); 16617e9e1933055b207473b488595b2887bfcaea32eJim Miller if (prefScreen != null) { 16717e9e1933055b207473b488595b2887bfcaea32eJim Miller prefScreen.removeAll(); 16817e9e1933055b207473b488595b2887bfcaea32eJim Miller } 16917e9e1933055b207473b488595b2887bfcaea32eJim Miller addPreferencesFromResource(R.xml.security_settings_picker); 1706370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler disableUnusablePreferences(quality); 17117e9e1933055b207473b488595b2887bfcaea32eJim Miller } else { 17217e9e1933055b207473b488595b2887bfcaea32eJim Miller updateUnlockMethodAndFinish(quality, false); 173bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller } 174abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn } 175bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller 176d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom private int upgradeQuality(int quality) { 177d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom quality = upgradeQualityForDPM(quality); 178d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom quality = upgradeQualityForEncryption(quality); 179d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom quality = upgradeQualityForKeyStore(quality); 180d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom return quality; 181d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom } 182d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom 183d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom private int upgradeQualityForDPM(int quality) { 184d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom // Compare min allowed password quality 185d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom int minQuality = mDPM.getPasswordQuality(null); 186d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom if (quality < minQuality) { 187d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom quality = minQuality; 188d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom } 189d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom return quality; 190d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom } 191d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom 1926370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler /** 1936370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler * Mix in "encryption minimums" to any given quality value. This prevents users 1946370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler * from downgrading the pattern/pin/password to a level below the minimums. 1956370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler * 1966370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler * ASSUMPTION: Setting quality is sufficient (e.g. minimum lengths will be set 1976370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler * appropriately.) 1986370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler */ 1996370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler private int upgradeQualityForEncryption(int quality) { 2006370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler int encryptionStatus = mDPM.getStorageEncryptionStatus(); 2016370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler boolean encrypted = (encryptionStatus == DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE) 2026370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler || (encryptionStatus == DevicePolicyManager.ENCRYPTION_STATUS_ACTIVATING); 2036370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler if (encrypted) { 204d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom if (quality < CryptKeeperSettings.MIN_PASSWORD_QUALITY) { 205d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom quality = CryptKeeperSettings.MIN_PASSWORD_QUALITY; 206d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom } 207d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom } 208d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom return quality; 209d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom } 210d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom 211d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom private int upgradeQualityForKeyStore(int quality) { 212d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom if (!mKeyStore.isEmpty()) { 213d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom if (quality < CredentialStorage.MIN_PASSWORD_QUALITY) { 214d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom quality = CredentialStorage.MIN_PASSWORD_QUALITY; 2156370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler } 2166370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler } 2176370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler return quality; 2186370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler } 2196370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler 22017e9e1933055b207473b488595b2887bfcaea32eJim Miller /*** 22117e9e1933055b207473b488595b2887bfcaea32eJim Miller * Disables preferences that are less secure than required quality. 22217e9e1933055b207473b488595b2887bfcaea32eJim Miller * 22317e9e1933055b207473b488595b2887bfcaea32eJim Miller * @param quality the requested quality. 22417e9e1933055b207473b488595b2887bfcaea32eJim Miller */ 22517e9e1933055b207473b488595b2887bfcaea32eJim Miller private void disableUnusablePreferences(final int quality) { 226cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani final PreferenceScreen entries = getPreferenceScreen(); 2275541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller final boolean onlyShowFallback = getActivity().getIntent() 2285541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller .getBooleanExtra(LockPatternUtils.LOCKSCREEN_BIOMETRIC_WEAK_FALLBACK, false); 2295541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller final boolean weakBiometricAvailable = isBiometricSensorAvailable( 2305541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK); 231cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani for (int i = entries.getPreferenceCount() - 1; i >= 0; --i) { 232cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani Preference pref = entries.getPreference(i); 23317e9e1933055b207473b488595b2887bfcaea32eJim Miller if (pref instanceof PreferenceScreen) { 23417e9e1933055b207473b488595b2887bfcaea32eJim Miller final String key = ((PreferenceScreen) pref).getKey(); 23517e9e1933055b207473b488595b2887bfcaea32eJim Miller boolean enabled = true; 2365541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller boolean visible = true; 237cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani if (KEY_UNLOCK_SET_OFF.equals(key)) { 23817e9e1933055b207473b488595b2887bfcaea32eJim Miller enabled = quality <= DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 23917e9e1933055b207473b488595b2887bfcaea32eJim Miller } else if (KEY_UNLOCK_SET_NONE.equals(key)) { 24017e9e1933055b207473b488595b2887bfcaea32eJim Miller enabled = quality <= DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2415541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller } else if (KEY_UNLOCK_SET_BIOMETRIC_WEAK.equals(key)) { 2425541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller enabled = quality <= DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK; 2435541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller visible = weakBiometricAvailable; // If not available, then don't show it. 24417e9e1933055b207473b488595b2887bfcaea32eJim Miller } else if (KEY_UNLOCK_SET_PATTERN.equals(key)) { 24517e9e1933055b207473b488595b2887bfcaea32eJim Miller enabled = quality <= DevicePolicyManager.PASSWORD_QUALITY_SOMETHING; 24617e9e1933055b207473b488595b2887bfcaea32eJim Miller } else if (KEY_UNLOCK_SET_PIN.equals(key)) { 24717e9e1933055b207473b488595b2887bfcaea32eJim Miller enabled = quality <= DevicePolicyManager.PASSWORD_QUALITY_NUMERIC; 24817e9e1933055b207473b488595b2887bfcaea32eJim Miller } else if (KEY_UNLOCK_SET_PASSWORD.equals(key)) { 24917e9e1933055b207473b488595b2887bfcaea32eJim Miller enabled = quality <= DevicePolicyManager.PASSWORD_QUALITY_COMPLEX; 25017e9e1933055b207473b488595b2887bfcaea32eJim Miller } 2515541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller if (!visible || (onlyShowFallback && !allowedForFallback(key))) { 252cf26bb2dcc83803678bcd37bb58b677209ffb3fcAmith Yamasani entries.removePreference(pref); 2535541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller } else if (!enabled) { 25417e9e1933055b207473b488595b2887bfcaea32eJim Miller pref.setSummary(R.string.unlock_set_unlock_disabled_summary); 25517e9e1933055b207473b488595b2887bfcaea32eJim Miller pref.setEnabled(false); 25617e9e1933055b207473b488595b2887bfcaea32eJim Miller } 257bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller } 258bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller } 259bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller } 260bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller 26117e9e1933055b207473b488595b2887bfcaea32eJim Miller /** 2625541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller * Check whether the key is allowed for fallback (e.g. bio sensor). Returns true if it's 2635541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller * supported as a backup. 2645541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller * 2655541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller * @param key 2665541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller * @return true if allowed 2675541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller */ 2685541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller private boolean allowedForFallback(String key) { 2695bae8739ea55702ec38df13550dd3f32137a9935Danielle Millett return KEY_UNLOCK_BACKUP_INFO.equals(key) || 2705bae8739ea55702ec38df13550dd3f32137a9935Danielle Millett KEY_UNLOCK_SET_PATTERN.equals(key) || KEY_UNLOCK_SET_PIN.equals(key); 2715541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller } 2725541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller 2735541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller private boolean isBiometricSensorAvailable(int quality) { 2745541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller return SystemProperties.getBoolean("ro.lockscreen.facelock_enabled", false); 2755541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller } 2765541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller 2775541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller private Intent getBiometricSensorIntent(int quality) { 2785541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller Intent fallBackIntent = new Intent().setClass(getActivity(), ChooseLockGeneric.class); 2795541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller fallBackIntent.putExtra(LockPatternUtils.LOCKSCREEN_BIOMETRIC_WEAK_FALLBACK, true); 2805541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller fallBackIntent.putExtra(CONFIRM_CREDENTIALS, false); 281940407eb6aac05a513d2f7d0626df9519be3a83cDanielle Millett fallBackIntent.putExtra(EXTRA_SHOW_FRAGMENT_TITLE, 282940407eb6aac05a513d2f7d0626df9519be3a83cDanielle Millett R.string.backup_lock_settings_picker_title); 2835541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller fallBackIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 2845541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller 2855541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller Intent intent = new Intent().setClassName("com.android.facelock", 2865541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller "com.android.facelock.SetupFaceLock"); 2875541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller PendingIntent pending = PendingIntent.getActivity(getActivity(), 0, fallBackIntent, 0); 2885541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller intent.putExtra("PendingIntent", pending); 2895541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller return intent; 2905541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller } 2915541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller 2925541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller /** 29317e9e1933055b207473b488595b2887bfcaea32eJim Miller * Invokes an activity to change the user's pattern, password or PIN based on given quality 29417e9e1933055b207473b488595b2887bfcaea32eJim Miller * and minimum quality specified by DevicePolicyManager. If quality is 29517e9e1933055b207473b488595b2887bfcaea32eJim Miller * {@link DevicePolicyManager#PASSWORD_QUALITY_UNSPECIFIED}, password is cleared. 29617e9e1933055b207473b488595b2887bfcaea32eJim Miller * 2976370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler * @param quality the desired quality. Ignored if DevicePolicyManager requires more security 29817e9e1933055b207473b488595b2887bfcaea32eJim Miller * @param disabled whether or not to show LockScreen at all. Only meaningful when quality is 29917e9e1933055b207473b488595b2887bfcaea32eJim Miller * {@link DevicePolicyManager#PASSWORD_QUALITY_UNSPECIFIED} 30017e9e1933055b207473b488595b2887bfcaea32eJim Miller */ 30117e9e1933055b207473b488595b2887bfcaea32eJim Miller void updateUnlockMethodAndFinish(int quality, boolean disabled) { 3026370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler // Sanity check. We should never get here without confirming user's existing password. 30317e9e1933055b207473b488595b2887bfcaea32eJim Miller if (!mPasswordConfirmed) { 3046370c87a6b98abfc6badb31070a60f84b3f528b3Andy Stadler throw new IllegalStateException("Tried to update password without confirming it"); 30517e9e1933055b207473b488595b2887bfcaea32eJim Miller } 306bbb4afa19f75694c585506b0c091372d60e07ca7Jim Miller 3075541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller final boolean isFallback = getActivity().getIntent() 3085541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller .getBooleanExtra(LockPatternUtils.LOCKSCREEN_BIOMETRIC_WEAK_FALLBACK, false); 3095541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller 310d4023b7cca11e33e84df39dee9e9a737efab47c2Brian Carlstrom quality = upgradeQuality(quality); 31117e9e1933055b207473b488595b2887bfcaea32eJim Miller if (quality >= DevicePolicyManager.PASSWORD_QUALITY_NUMERIC) { 31217e9e1933055b207473b488595b2887bfcaea32eJim Miller int minLength = mDPM.getPasswordMinimumLength(null); 31317e9e1933055b207473b488595b2887bfcaea32eJim Miller if (minLength < MIN_PASSWORD_LENGTH) { 31417e9e1933055b207473b488595b2887bfcaea32eJim Miller minLength = MIN_PASSWORD_LENGTH; 31517e9e1933055b207473b488595b2887bfcaea32eJim Miller } 31617e9e1933055b207473b488595b2887bfcaea32eJim Miller final int maxLength = mDPM.getPasswordMaximumLength(quality); 31717e9e1933055b207473b488595b2887bfcaea32eJim Miller Intent intent = new Intent().setClass(getActivity(), ChooseLockPassword.class); 31817e9e1933055b207473b488595b2887bfcaea32eJim Miller intent.putExtra(LockPatternUtils.PASSWORD_TYPE_KEY, quality); 31917e9e1933055b207473b488595b2887bfcaea32eJim Miller intent.putExtra(ChooseLockPassword.PASSWORD_MIN_KEY, minLength); 32017e9e1933055b207473b488595b2887bfcaea32eJim Miller intent.putExtra(ChooseLockPassword.PASSWORD_MAX_KEY, maxLength); 32117e9e1933055b207473b488595b2887bfcaea32eJim Miller intent.putExtra(CONFIRM_CREDENTIALS, false); 32217e9e1933055b207473b488595b2887bfcaea32eJim Miller intent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT); 3235541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller intent.putExtra(LockPatternUtils.LOCKSCREEN_BIOMETRIC_WEAK_FALLBACK, 3245541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller isFallback); 32517e9e1933055b207473b488595b2887bfcaea32eJim Miller startActivity(intent); 32617e9e1933055b207473b488595b2887bfcaea32eJim Miller } else if (quality == DevicePolicyManager.PASSWORD_QUALITY_SOMETHING) { 32717e9e1933055b207473b488595b2887bfcaea32eJim Miller boolean showTutorial = !mChooseLockSettingsHelper.utils().isPatternEverChosen(); 32817e9e1933055b207473b488595b2887bfcaea32eJim Miller Intent intent = new Intent(); 32917e9e1933055b207473b488595b2887bfcaea32eJim Miller intent.setClass(getActivity(), showTutorial 33017e9e1933055b207473b488595b2887bfcaea32eJim Miller ? ChooseLockPatternTutorial.class 33117e9e1933055b207473b488595b2887bfcaea32eJim Miller : ChooseLockPattern.class); 33217e9e1933055b207473b488595b2887bfcaea32eJim Miller intent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT); 33317e9e1933055b207473b488595b2887bfcaea32eJim Miller intent.putExtra("key_lock_method", "pattern"); 33417e9e1933055b207473b488595b2887bfcaea32eJim Miller intent.putExtra(CONFIRM_CREDENTIALS, false); 3355541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller intent.putExtra(LockPatternUtils.LOCKSCREEN_BIOMETRIC_WEAK_FALLBACK, 3365541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller isFallback); 3375541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller startActivity(intent); 3385541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller } else if (quality == DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK) { 3395541a86efe5f26956e54de49c4a59bf1dab79a78Jim Miller Intent intent = getBiometricSensorIntent(quality); 34017e9e1933055b207473b488595b2887bfcaea32eJim Miller startActivity(intent); 34117e9e1933055b207473b488595b2887bfcaea32eJim Miller } else if (quality == DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 34217e9e1933055b207473b488595b2887bfcaea32eJim Miller mChooseLockSettingsHelper.utils().clearLock(); 34317e9e1933055b207473b488595b2887bfcaea32eJim Miller mChooseLockSettingsHelper.utils().setLockScreenDisabled(disabled); 34417e9e1933055b207473b488595b2887bfcaea32eJim Miller getActivity().setResult(Activity.RESULT_OK); 34517e9e1933055b207473b488595b2887bfcaea32eJim Miller } 34617e9e1933055b207473b488595b2887bfcaea32eJim Miller finish(); 347abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn } 348abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn } 349abc3dc64cf61c9f5c28b6f2640b221d63cb86a0aDianne Hackborn} 350