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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings.password;
import static android.app.admin.DevicePolicyManager.PASSWORD_COMPLEXITY_NONE;
import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_NUMERIC;
import static com.android.internal.widget.LockPatternUtils.CREDENTIAL_TYPE_NONE;
import static com.android.internal.widget.PasswordValidationError.CONTAINS_INVALID_CHARACTERS;
import static com.android.internal.widget.PasswordValidationError.CONTAINS_SEQUENCE;
import static com.android.internal.widget.PasswordValidationError.NOT_ENOUGH_DIGITS;
import static com.android.internal.widget.PasswordValidationError.NOT_ENOUGH_LETTERS;
import static com.android.internal.widget.PasswordValidationError.NOT_ENOUGH_LOWER_CASE;
import static com.android.internal.widget.PasswordValidationError.NOT_ENOUGH_NON_DIGITS;
import static com.android.internal.widget.PasswordValidationError.NOT_ENOUGH_NON_LETTER;
import static com.android.internal.widget.PasswordValidationError.NOT_ENOUGH_SYMBOLS;
import static com.android.internal.widget.PasswordValidationError.NOT_ENOUGH_UPPER_CASE;
import static com.android.internal.widget.PasswordValidationError.RECENTLY_USED;
import static com.android.internal.widget.PasswordValidationError.TOO_LONG;
import static com.android.internal.widget.PasswordValidationError.TOO_SHORT;
import static com.android.settings.password.ChooseLockSettingsHelper.EXTRA_KEY_UNIFICATION_PROFILE_CREDENTIAL;
import static com.android.settings.password.ChooseLockSettingsHelper.EXTRA_KEY_UNIFICATION_PROFILE_ID;
import android.app.Activity;
import android.app.admin.DevicePolicyManager;
import android.app.admin.DevicePolicyManager.PasswordComplexity;
import android.app.admin.PasswordMetrics;
import android.app.settings.SettingsEnums;
import android.content.Context;
import android.content.Intent;
import android.graphics.Insets;
import android.graphics.Typeface;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.UserHandle;
import android.os.UserManager;
import android.text.Editable;
import android.text.InputType;
import android.text.Selection;
import android.text.Spannable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.util.Log;
import android.util.Pair;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.inputmethod.EditorInfo;
import android.widget.ImeAwareEditText;
import android.widget.TextView;
import android.widget.TextView.OnEditorActionListener;
import androidx.annotation.StringRes;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.widget.LockPatternUtils;
import com.android.internal.widget.LockscreenCredential;
import com.android.internal.widget.PasswordValidationError;
import com.android.internal.widget.TextViewInputDisabler;
import com.android.internal.widget.VerifyCredentialResponse;
import com.android.settings.EncryptionInterstitial;
import com.android.settings.R;
import com.android.settings.SettingsActivity;
import com.android.settings.SetupWizardUtils;
import com.android.settings.Utils;
import com.android.settings.core.InstrumentedFragment;
import com.android.settings.notification.RedactionInterstitial;
import com.google.android.setupcompat.template.FooterBarMixin;
import com.google.android.setupcompat.template.FooterButton;
import com.google.android.setupdesign.GlifLayout;
import com.google.android.setupdesign.util.ThemeHelper;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class ChooseLockPassword extends SettingsActivity {
private static final String TAG = "ChooseLockPassword";
static final String EXTRA_KEY_MIN_METRICS = "min_metrics";
static final String EXTRA_KEY_MIN_COMPLEXITY = "min_complexity";
@Override
public Intent getIntent() {
Intent modIntent = new Intent(super.getIntent());
modIntent.putExtra(EXTRA_SHOW_FRAGMENT, getFragmentClass().getName());
return modIntent;
}
public static class IntentBuilder {
private final Intent mIntent;
public IntentBuilder(Context context) {
mIntent = new Intent(context, ChooseLockPassword.class);
mIntent.putExtra(ChooseLockGeneric.CONFIRM_CREDENTIALS, false);
mIntent.putExtra(EncryptionInterstitial.EXTRA_REQUIRE_PASSWORD, false);
}
/**
* Sets the intended credential type i.e. whether it's numeric PIN or general password
* @param passwordType password type represented by one of the {@code PASSWORD_QUALITY_}
* constants.
*/
public IntentBuilder setPasswordType(int passwordType) {
mIntent.putExtra(LockPatternUtils.PASSWORD_TYPE_KEY, passwordType);
return this;
}
public IntentBuilder setUserId(int userId) {
mIntent.putExtra(Intent.EXTRA_USER_ID, userId);
return this;
}
public IntentBuilder setRequestGatekeeperPasswordHandle(
boolean requestGatekeeperPasswordHandle) {
mIntent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_REQUEST_GK_PW_HANDLE,
requestGatekeeperPasswordHandle);
return this;
}
public IntentBuilder setPassword(LockscreenCredential password) {
mIntent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD, password);
return this;
}
public IntentBuilder setForFingerprint(boolean forFingerprint) {
mIntent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, forFingerprint);
return this;
}
public IntentBuilder setForFace(boolean forFace) {
mIntent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_FOR_FACE, forFace);
return this;
}
public IntentBuilder setForBiometrics(boolean forBiometrics) {
mIntent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_FOR_BIOMETRICS, forBiometrics);
return this;
}
/** Sets the minimum password requirement in terms of complexity and metrics */
public IntentBuilder setPasswordRequirement(@PasswordComplexity int level,
PasswordMetrics metrics) {
mIntent.putExtra(EXTRA_KEY_MIN_COMPLEXITY, level);
mIntent.putExtra(EXTRA_KEY_MIN_METRICS, metrics);
return this;
}
/**
* Configures the launch such that at the end of the password enrollment, one of its
* managed profile (specified by {@code profileId}) will have its lockscreen unified
* to the parent user. The profile's current lockscreen credential needs to be specified by
* {@code credential}.
*/
public IntentBuilder setProfileToUnify(int profileId, LockscreenCredential credential) {
mIntent.putExtra(EXTRA_KEY_UNIFICATION_PROFILE_ID, profileId);
mIntent.putExtra(EXTRA_KEY_UNIFICATION_PROFILE_CREDENTIAL, credential);
return this;
}
public Intent build() {
return mIntent;
}
}
@Override
protected boolean isValidFragment(String fragmentName) {
if (ChooseLockPasswordFragment.class.getName().equals(fragmentName)) return true;
return false;
}
@Override
protected boolean isToolbarEnabled() {
return false;
}
/* package */ Class<? extends Fragment> getFragmentClass() {
return ChooseLockPasswordFragment.class;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
setTheme(SetupWizardUtils.getTheme(this, getIntent()));
ThemeHelper.trySetDynamicColor(this);
super.onCreate(savedInstanceState);
findViewById(R.id.content_parent).setFitsSystemWindows(false);
}
public static class ChooseLockPasswordFragment extends InstrumentedFragment
implements OnEditorActionListener, TextWatcher, SaveAndFinishWorker.Listener {
private static final String KEY_FIRST_PASSWORD = "first_password";
private static final String KEY_UI_STAGE = "ui_stage";
private static final String KEY_CURRENT_CREDENTIAL = "current_credential";
private static final String FRAGMENT_TAG_SAVE_AND_FINISH = "save_and_finish_worker";
private LockscreenCredential mCurrentCredential;
private LockscreenCredential mChosenPassword;
private boolean mRequestGatekeeperPassword;
private ImeAwareEditText mPasswordEntry;
private TextViewInputDisabler mPasswordEntryInputDisabler;
// Minimum password metrics enforced by admins.
private PasswordMetrics mMinMetrics;
private List<PasswordValidationError> mValidationErrors;
@PasswordComplexity private int mMinComplexity = PASSWORD_COMPLEXITY_NONE;
protected int mUserId;
private byte[] mPasswordHistoryHashFactor;
private int mUnificationProfileId = UserHandle.USER_NULL;
private LockPatternUtils mLockPatternUtils;
private SaveAndFinishWorker mSaveAndFinishWorker;
private int mPasswordType = DevicePolicyManager.PASSWORD_QUALITY_NUMERIC;
protected Stage mUiStage = Stage.Introduction;
private PasswordRequirementAdapter mPasswordRequirementAdapter;
private GlifLayout mLayout;
protected boolean mForFingerprint;
protected boolean mForFace;
protected boolean mForBiometrics;
private LockscreenCredential mFirstPassword;
private RecyclerView mPasswordRestrictionView;
protected boolean mIsAlphaMode;
protected boolean mIsManagedProfile;
protected FooterButton mSkipOrClearButton;
private FooterButton mNextButton;
private TextView mMessage;
private TextChangedHandler mTextChangedHandler;
private static final int CONFIRM_EXISTING_REQUEST = 58;
static final int RESULT_FINISHED = RESULT_FIRST_USER;
/**
* Keep track internally of where the user is in choosing a pattern.
*/
protected enum Stage {
Introduction(
R.string.lockpassword_choose_your_password_header, // password
R.string.lockpassword_choose_your_profile_password_header,
R.string.lockpassword_choose_your_password_header_for_fingerprint,
R.string.lockpassword_choose_your_password_header_for_face,
R.string.lockpassword_choose_your_password_header_for_biometrics,
R.string.lockpassword_choose_your_pin_header, // pin
R.string.lockpassword_choose_your_profile_pin_header,
R.string.lockpassword_choose_your_pin_header_for_fingerprint,
R.string.lockpassword_choose_your_pin_header_for_face,
R.string.lockpassword_choose_your_pin_header_for_biometrics,
R.string.lockpassword_choose_password_description,
R.string.lock_settings_picker_biometrics_added_security_message,
R.string.lockpassword_choose_pin_description,
R.string.lock_settings_picker_biometrics_added_security_message,
R.string.next_label),
NeedToConfirm(
R.string.lockpassword_confirm_your_password_header,
R.string.lockpassword_reenter_your_profile_password_header,
R.string.lockpassword_confirm_your_password_header,
R.string.lockpassword_confirm_your_password_header,
R.string.lockpassword_confirm_your_password_header,
R.string.lockpassword_confirm_your_pin_header,
R.string.lockpassword_reenter_your_profile_pin_header,
R.string.lockpassword_confirm_your_pin_header,
R.string.lockpassword_confirm_your_pin_header,
R.string.lockpassword_confirm_your_pin_header,
0,
0,
0,
0,
R.string.lockpassword_confirm_label),
ConfirmWrong(
R.string.lockpassword_confirm_passwords_dont_match,
R.string.lockpassword_confirm_passwords_dont_match,
R.string.lockpassword_confirm_passwords_dont_match,
R.string.lockpassword_confirm_passwords_dont_match,
R.string.lockpassword_confirm_passwords_dont_match,
R.string.lockpassword_confirm_pins_dont_match,
R.string.lockpassword_confirm_pins_dont_match,
R.string.lockpassword_confirm_pins_dont_match,
R.string.lockpassword_confirm_pins_dont_match,
R.string.lockpassword_confirm_pins_dont_match,
0,
0,
0,
0,
R.string.lockpassword_confirm_label);
Stage(int hintInAlpha,
int hintInAlphaForProfile,
int hintInAlphaForFingerprint,
int hintInAlphaForFace,
int hintInAlphaForBiometrics,
int hintInNumeric,
int hintInNumericForProfile,
int hintInNumericForFingerprint,
int hintInNumericForFace,
int hintInNumericForBiometrics,
int messageInAlpha,
int messageInAlphaForBiometrics,
int messageInNumeric,
int messageInNumericForBiometrics,
int nextButtonText) {
this.alphaHint = hintInAlpha;
this.alphaHintForProfile = hintInAlphaForProfile;
this.alphaHintForFingerprint = hintInAlphaForFingerprint;
this.alphaHintForFace = hintInAlphaForFace;
this.alphaHintForBiometrics = hintInAlphaForBiometrics;
this.numericHint = hintInNumeric;
this.numericHintForProfile = hintInNumericForProfile;
this.numericHintForFingerprint = hintInNumericForFingerprint;
this.numericHintForFace = hintInNumericForFace;
this.numericHintForBiometrics = hintInNumericForBiometrics;
this.alphaMessage = messageInAlpha;
this.alphaMessageForBiometrics = messageInAlphaForBiometrics;
this.numericMessage = messageInNumeric;
this.numericMessageForBiometrics = messageInNumericForBiometrics;
this.buttonText = nextButtonText;
}
public static final int TYPE_NONE = 0;
public static final int TYPE_FINGERPRINT = 1;
public static final int TYPE_FACE = 2;
public static final int TYPE_BIOMETRIC = 3;
// Password header
public final int alphaHint;
public final int alphaHintForProfile;
public final int alphaHintForFingerprint;
public final int alphaHintForFace;
public final int alphaHintForBiometrics;
// PIN header
public final int numericHint;
public final int numericHintForProfile;
public final int numericHintForFingerprint;
public final int numericHintForFace;
public final int numericHintForBiometrics;
// Password description
public final int alphaMessage;
public final int alphaMessageForBiometrics;
// PIN description
public final int numericMessage;
public final int numericMessageForBiometrics;
public final int buttonText;
public @StringRes int getHint(boolean isAlpha, int type, boolean isProfile) {
if (isAlpha) {
if (type == TYPE_FINGERPRINT) {
return alphaHintForFingerprint;
} else if (type == TYPE_FACE) {
return alphaHintForFace;
} else if (type == TYPE_BIOMETRIC) {
return alphaHintForBiometrics;
} else {
return isProfile ? alphaHintForProfile : alphaHint;
}
} else {
if (type == TYPE_FINGERPRINT) {
return numericHintForFingerprint;
} else if (type == TYPE_FACE) {
return numericHintForFace;
} else if (type == TYPE_BIOMETRIC) {
return numericHintForBiometrics;
} else {
return isProfile ? numericHintForProfile : numericHint;
}
}
}
public @StringRes int getMessage(boolean isAlpha, int type) {
switch (type) {
case TYPE_FINGERPRINT:
case TYPE_FACE:
case TYPE_BIOMETRIC:
return isAlpha ? alphaMessageForBiometrics : numericMessageForBiometrics;
case TYPE_NONE:
default:
return isAlpha ? alphaMessage : numericMessage;
}
}
}
// required constructor for fragments
public ChooseLockPasswordFragment() {
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mLockPatternUtils = new LockPatternUtils(getActivity());
Intent intent = getActivity().getIntent();
if (!(getActivity() instanceof ChooseLockPassword)) {
throw new SecurityException("Fragment contained in wrong activity");
}
// Only take this argument into account if it belongs to the current profile.
mUserId = Utils.getUserIdFromBundle(getActivity(), intent.getExtras());
mIsManagedProfile = UserManager.get(getActivity()).isManagedProfile(mUserId);
mForFingerprint = intent.getBooleanExtra(
ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, false);
mForFace = intent.getBooleanExtra(ChooseLockSettingsHelper.EXTRA_KEY_FOR_FACE, false);
mForBiometrics = intent.getBooleanExtra(
ChooseLockSettingsHelper.EXTRA_KEY_FOR_BIOMETRICS, false);
mPasswordType = intent.getIntExtra(
LockPatternUtils.PASSWORD_TYPE_KEY, PASSWORD_QUALITY_NUMERIC);
mUnificationProfileId = intent.getIntExtra(
EXTRA_KEY_UNIFICATION_PROFILE_ID, UserHandle.USER_NULL);
mMinComplexity = intent.getIntExtra(EXTRA_KEY_MIN_COMPLEXITY, PASSWORD_COMPLEXITY_NONE);
mMinMetrics = intent.getParcelableExtra(EXTRA_KEY_MIN_METRICS);
if (mMinMetrics == null) mMinMetrics = new PasswordMetrics(CREDENTIAL_TYPE_NONE);
if (intent.getBooleanExtra(
ChooseLockSettingsHelper.EXTRA_KEY_FOR_CHANGE_CRED_REQUIRED_FOR_BOOT, false)) {
SaveAndFinishWorker w = new SaveAndFinishWorker();
final boolean required = getActivity().getIntent().getBooleanExtra(
EncryptionInterstitial.EXTRA_REQUIRE_PASSWORD, true);
LockscreenCredential currentCredential = intent.getParcelableExtra(
ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
final LockPatternUtils utils = new LockPatternUtils(getActivity());
w.setBlocking(true);
w.setListener(this);
w.start(utils, required, false /* requestGatekeeperPassword */, currentCredential,
currentCredential, mUserId);
}
mTextChangedHandler = new TextChangedHandler();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.choose_lock_password, container, false);
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
mLayout = (GlifLayout) view;
// Make the password container consume the optical insets so the edit text is aligned
// with the sides of the parent visually.
ViewGroup container = view.findViewById(R.id.password_container);
container.setOpticalInsets(Insets.NONE);
final FooterBarMixin mixin = mLayout.getMixin(FooterBarMixin.class);
mixin.setSecondaryButton(
new FooterButton.Builder(getActivity())
.setText(R.string.lockpassword_clear_label)
.setListener(this::onSkipOrClearButtonClick)
.setButtonType(FooterButton.ButtonType.SKIP)
.setTheme(R.style.SudGlifButton_Secondary)
.build()
);
mixin.setPrimaryButton(
new FooterButton.Builder(getActivity())
.setText(R.string.next_label)
.setListener(this::onNextButtonClick)
.setButtonType(FooterButton.ButtonType.NEXT)
.setTheme(R.style.SudGlifButton_Primary)
.build()
);
mSkipOrClearButton = mixin.getSecondaryButton();
mNextButton = mixin.getPrimaryButton();
mMessage = view.findViewById(R.id.sud_layout_description);
mLayout.setIcon(getActivity().getDrawable(R.drawable.ic_lock));
mIsAlphaMode = DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC == mPasswordType
|| DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC == mPasswordType
|| DevicePolicyManager.PASSWORD_QUALITY_COMPLEX == mPasswordType;
setupPasswordRequirementsView(view);
mPasswordRestrictionView.setLayoutManager(new LinearLayoutManager(getActivity()));
mPasswordEntry = view.findViewById(R.id.password_entry);
mPasswordEntry.setOnEditorActionListener(this);
mPasswordEntry.addTextChangedListener(this);
mPasswordEntry.requestFocus();
mPasswordEntryInputDisabler = new TextViewInputDisabler(mPasswordEntry);
final Activity activity = getActivity();
int currentType = mPasswordEntry.getInputType();
mPasswordEntry.setInputType(mIsAlphaMode ? currentType
: (InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_VARIATION_PASSWORD));
if (mIsAlphaMode) {
mPasswordEntry.setContentDescription(
getString(R.string.unlock_set_unlock_password_title));
} else {
mPasswordEntry.setContentDescription(
getString(R.string.unlock_set_unlock_pin_title));
}
// Can't set via XML since setInputType resets the fontFamily to null
mPasswordEntry.setTypeface(Typeface.create(
getContext().getString(com.android.internal.R.string.config_headlineFontFamily),
Typeface.NORMAL));
Intent intent = getActivity().getIntent();
final boolean confirmCredentials = intent.getBooleanExtra(
ChooseLockGeneric.CONFIRM_CREDENTIALS, true);
mCurrentCredential = intent.getParcelableExtra(
ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
mRequestGatekeeperPassword = intent.getBooleanExtra(
ChooseLockSettingsHelper.EXTRA_KEY_REQUEST_GK_PW_HANDLE, false);
if (savedInstanceState == null) {
updateStage(Stage.Introduction);
if (confirmCredentials) {
final ChooseLockSettingsHelper.Builder builder =
new ChooseLockSettingsHelper.Builder(getActivity());
builder.setRequestCode(CONFIRM_EXISTING_REQUEST)
.setTitle(getString(R.string.unlock_set_unlock_launch_picker_title))
.setReturnCredentials(true)
.setRequestGatekeeperPasswordHandle(mRequestGatekeeperPassword)
.setUserId(mUserId)
.show();
}
} else {
// restore from previous state
mFirstPassword = savedInstanceState.getParcelable(KEY_FIRST_PASSWORD);
final String state = savedInstanceState.getString(KEY_UI_STAGE);
if (state != null) {
mUiStage = Stage.valueOf(state);
updateStage(mUiStage);
}
mCurrentCredential = savedInstanceState.getParcelable(KEY_CURRENT_CREDENTIAL);
// Re-attach to the exiting worker if there is one.
mSaveAndFinishWorker = (SaveAndFinishWorker) getFragmentManager().findFragmentByTag(
FRAGMENT_TAG_SAVE_AND_FINISH);
}
if (activity instanceof SettingsActivity) {
final SettingsActivity sa = (SettingsActivity) activity;
int title = Stage.Introduction.getHint(mIsAlphaMode, getStageType(),
mIsManagedProfile);
sa.setTitle(title);
mLayout.setHeaderText(title);
}
}
@Override
public void onDestroy() {
super.onDestroy();
if (mCurrentCredential != null) {
mCurrentCredential.zeroize();
}
// Force a garbage collection immediately to remove remnant of user password shards
// from memory.
System.gc();
System.runFinalization();
System.gc();
}
protected int getStageType() {
if (mForFingerprint) {
return Stage.TYPE_FINGERPRINT;
} else if (mForFace) {
return Stage.TYPE_FACE;
} else if (mForBiometrics) {
return Stage.TYPE_BIOMETRIC;
} else {
return Stage.TYPE_NONE;
}
}
private void setupPasswordRequirementsView(View view) {
mPasswordRestrictionView = view.findViewById(R.id.password_requirements_view);
mPasswordRestrictionView.setLayoutManager(new LinearLayoutManager(getActivity()));
mPasswordRequirementAdapter = new PasswordRequirementAdapter();
mPasswordRestrictionView.setAdapter(mPasswordRequirementAdapter);
}
@Override
public int getMetricsCategory() {
return SettingsEnums.CHOOSE_LOCK_PASSWORD;
}
@Override
public void onResume() {
super.onResume();
updateStage(mUiStage);
if (mSaveAndFinishWorker != null) {
mSaveAndFinishWorker.setListener(this);
} else {
mPasswordEntry.requestFocus();
mPasswordEntry.scheduleShowSoftInput();
}
}
@Override
public void onPause() {
if (mSaveAndFinishWorker != null) {
mSaveAndFinishWorker.setListener(null);
}
super.onPause();
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putString(KEY_UI_STAGE, mUiStage.name());
outState.putParcelable(KEY_FIRST_PASSWORD, mFirstPassword);
if (mCurrentCredential != null) {
outState.putParcelable(KEY_CURRENT_CREDENTIAL, mCurrentCredential.duplicate());
}
}
@Override
public void onActivityResult(int requestCode, int resultCode,
Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case CONFIRM_EXISTING_REQUEST:
if (resultCode != Activity.RESULT_OK) {
getActivity().setResult(RESULT_FINISHED);
getActivity().finish();
} else {
mCurrentCredential = data.getParcelableExtra(
ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
}
break;
}
}
protected Intent getRedactionInterstitialIntent(Context context) {
return RedactionInterstitial.createStartIntent(context, mUserId);
}
protected void updateStage(Stage stage) {
final Stage previousStage = mUiStage;
mUiStage = stage;
updateUi();
// If the stage changed, announce the header for accessibility. This
// is a no-op when accessibility is disabled.
if (previousStage != stage) {
mLayout.announceForAccessibility(mLayout.getHeaderText());
}
}
/**
* Validates PIN/Password and returns the validation result and updates mValidationErrors
* and mPasswordReused to reflect validation results.
*
* @param credential credential the user typed in.
* @return whether password satisfies all the requirements.
*/
@VisibleForTesting
boolean validatePassword(LockscreenCredential credential) {
final byte[] password = credential.getCredential();
mValidationErrors = PasswordMetrics.validatePassword(
mMinMetrics, mMinComplexity, !mIsAlphaMode, password);
if (mValidationErrors.isEmpty() && mLockPatternUtils.checkPasswordHistory(
password, getPasswordHistoryHashFactor(), mUserId)) {
mValidationErrors =
Collections.singletonList(new PasswordValidationError(RECENTLY_USED));
}
return mValidationErrors.isEmpty();
}
/**
* Lazily compute and return the history hash factor of the current user (mUserId), used for
* password history check.
*/
private byte[] getPasswordHistoryHashFactor() {
if (mPasswordHistoryHashFactor == null) {
mPasswordHistoryHashFactor = mLockPatternUtils.getPasswordHistoryHashFactor(
mCurrentCredential != null ? mCurrentCredential
: LockscreenCredential.createNone(), mUserId);
}
return mPasswordHistoryHashFactor;
}
public void handleNext() {
if (mSaveAndFinishWorker != null) return;
// TODO(b/120484642): This is a point of entry for passwords from the UI
final Editable passwordText = mPasswordEntry.getText();
if (TextUtils.isEmpty(passwordText)) {
return;
}
mChosenPassword = mIsAlphaMode ? LockscreenCredential.createPassword(passwordText)
: LockscreenCredential.createPin(passwordText);
if (mUiStage == Stage.Introduction) {
if (validatePassword(mChosenPassword)) {
mFirstPassword = mChosenPassword;
mPasswordEntry.setText("");
updateStage(Stage.NeedToConfirm);
} else {
mChosenPassword.zeroize();
}
} else if (mUiStage == Stage.NeedToConfirm) {
if (mChosenPassword.equals(mFirstPassword)) {
startSaveAndFinish();
} else {
CharSequence tmp = mPasswordEntry.getText();
if (tmp != null) {
Selection.setSelection((Spannable) tmp, 0, tmp.length());
}
updateStage(Stage.ConfirmWrong);
mChosenPassword.zeroize();
}
}
}
protected void setNextEnabled(boolean enabled) {
mNextButton.setEnabled(enabled);
}
protected void setNextText(int text) {
mNextButton.setText(getActivity(), text);
}
protected void onSkipOrClearButtonClick(View view) {
mPasswordEntry.setText("");
}
protected void onNextButtonClick(View view) {
handleNext();
}
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
// Check if this was the result of hitting the enter or "done" key
if (actionId == EditorInfo.IME_NULL
|| actionId == EditorInfo.IME_ACTION_DONE
|| actionId == EditorInfo.IME_ACTION_NEXT) {
handleNext();
return true;
}
return false;
}
/**
* @param errorCode error code returned from password validation.
* @return an array of messages describing the error, important messages come first.
*/
String[] convertErrorCodeToMessages() {
List<String> messages = new ArrayList<>();
for (PasswordValidationError error : mValidationErrors) {
switch (error.errorCode) {
case CONTAINS_INVALID_CHARACTERS:
messages.add(getString(R.string.lockpassword_illegal_character));
break;
case NOT_ENOUGH_UPPER_CASE:
messages.add(getResources().getQuantityString(
R.plurals.lockpassword_password_requires_uppercase,
error.requirement, error.requirement));
break;
case NOT_ENOUGH_LOWER_CASE:
messages.add(getResources().getQuantityString(
R.plurals.lockpassword_password_requires_lowercase,
error.requirement, error.requirement));
break;
case NOT_ENOUGH_LETTERS:
messages.add(getResources().getQuantityString(
R.plurals.lockpassword_password_requires_letters,
error.requirement, error.requirement));
break;
case NOT_ENOUGH_DIGITS:
messages.add(getResources().getQuantityString(
R.plurals.lockpassword_password_requires_numeric,
error.requirement, error.requirement));
break;
case NOT_ENOUGH_SYMBOLS:
messages.add(getResources().getQuantityString(
R.plurals.lockpassword_password_requires_symbols,
error.requirement, error.requirement));
break;
case NOT_ENOUGH_NON_LETTER:
messages.add(getResources().getQuantityString(
R.plurals.lockpassword_password_requires_nonletter,
error.requirement, error.requirement));
break;
case NOT_ENOUGH_NON_DIGITS:
messages.add(getResources().getQuantityString(
R.plurals.lockpassword_password_requires_nonnumerical,
error.requirement, error.requirement));
break;
case TOO_SHORT:
messages.add(getResources().getQuantityString(
mIsAlphaMode
? R.plurals.lockpassword_password_too_short
: R.plurals.lockpassword_pin_too_short,
error.requirement, error.requirement));
break;
case TOO_LONG:
messages.add(getResources().getQuantityString(
mIsAlphaMode
? R.plurals.lockpassword_password_too_long
: R.plurals.lockpassword_pin_too_long,
error.requirement + 1, error.requirement + 1));
break;
case CONTAINS_SEQUENCE:
messages.add(getString(R.string.lockpassword_pin_no_sequential_digits));
break;
case RECENTLY_USED:
messages.add(getString(mIsAlphaMode
? R.string.lockpassword_password_recently_used
: R.string.lockpassword_pin_recently_used));
break;
default:
Log.wtf(TAG, "unknown error validating password: " + error);
}
}
return messages.toArray(new String[0]);
}
/**
* Update the hint based on current Stage and length of password entry
*/
protected void updateUi() {
final boolean canInput = mSaveAndFinishWorker == null;
LockscreenCredential password = mIsAlphaMode
? LockscreenCredential.createPasswordOrNone(mPasswordEntry.getText())
: LockscreenCredential.createPinOrNone(mPasswordEntry.getText());
final int length = password.size();
if (mUiStage == Stage.Introduction) {
mPasswordRestrictionView.setVisibility(View.VISIBLE);
final boolean passwordCompliant = validatePassword(password);
String[] messages = convertErrorCodeToMessages();
// Update the fulfillment of requirements.
mPasswordRequirementAdapter.setRequirements(messages);
// Enable/Disable the next button accordingly.
setNextEnabled(passwordCompliant);
} else {
// Hide password requirement view when we are just asking user to confirm the pw.
mPasswordRestrictionView.setVisibility(View.GONE);
setHeaderText(getString(mUiStage.getHint(mIsAlphaMode, getStageType(),
mIsManagedProfile)));
setNextEnabled(canInput && length >= LockPatternUtils.MIN_LOCK_PASSWORD_SIZE);
mSkipOrClearButton.setVisibility(toVisibility(canInput && length > 0));
}
int message = mUiStage.getMessage(mIsAlphaMode, getStageType());
if (message != 0) {
mMessage.setVisibility(View.VISIBLE);
mMessage.setText(message);
} else {
mMessage.setVisibility(View.INVISIBLE);
}
setNextText(mUiStage.buttonText);
mPasswordEntryInputDisabler.setInputEnabled(canInput);
password.zeroize();
}
protected int toVisibility(boolean visibleOrGone) {
return visibleOrGone ? View.VISIBLE : View.GONE;
}
private void setHeaderText(String text) {
// Only set the text if it is different than the existing one to avoid announcing again.
if (!TextUtils.isEmpty(mLayout.getHeaderText())
&& mLayout.getHeaderText().toString().equals(text)) {
return;
}
mLayout.setHeaderText(text);
}
public void afterTextChanged(Editable s) {
// Changing the text while error displayed resets to NeedToConfirm state
if (mUiStage == Stage.ConfirmWrong) {
mUiStage = Stage.NeedToConfirm;
}
// Schedule the UI update.
mTextChangedHandler.notifyAfterTextChanged();
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
private void startSaveAndFinish() {
if (mSaveAndFinishWorker != null) {
Log.w(TAG, "startSaveAndFinish with an existing SaveAndFinishWorker.");
return;
}
mPasswordEntryInputDisabler.setInputEnabled(false);
setNextEnabled(false);
mSaveAndFinishWorker = new SaveAndFinishWorker();
mSaveAndFinishWorker.setListener(this);
getFragmentManager().beginTransaction().add(mSaveAndFinishWorker,
FRAGMENT_TAG_SAVE_AND_FINISH).commit();
getFragmentManager().executePendingTransactions();
final Intent intent = getActivity().getIntent();
final boolean required = intent.getBooleanExtra(
EncryptionInterstitial.EXTRA_REQUIRE_PASSWORD, true);
if (mUnificationProfileId != UserHandle.USER_NULL) {
try (LockscreenCredential profileCredential = (LockscreenCredential)
intent.getParcelableExtra(EXTRA_KEY_UNIFICATION_PROFILE_CREDENTIAL)) {
mSaveAndFinishWorker.setProfileToUnify(mUnificationProfileId,
profileCredential);
}
}
mSaveAndFinishWorker.start(mLockPatternUtils, required, mRequestGatekeeperPassword,
mChosenPassword, mCurrentCredential, mUserId);
}
@Override
public void onChosenLockSaveFinished(boolean wasSecureBefore, Intent resultData) {
getActivity().setResult(RESULT_FINISHED, resultData);
if (mChosenPassword != null) {
mChosenPassword.zeroize();
}
if (mCurrentCredential != null) {
mCurrentCredential.zeroize();
}
if (mFirstPassword != null) {
mFirstPassword.zeroize();
}
mPasswordEntry.setText("");
if (!wasSecureBefore) {
Intent intent = getRedactionInterstitialIntent(getActivity());
if (intent != null) {
startActivity(intent);
}
}
getActivity().finish();
}
class TextChangedHandler extends Handler {
private static final int ON_TEXT_CHANGED = 1;
private static final int DELAY_IN_MILLISECOND = 100;
/**
* With the introduction of delay, we batch processing the text changed event to reduce
* unnecessary UI updates.
*/
private void notifyAfterTextChanged() {
removeMessages(ON_TEXT_CHANGED);
sendEmptyMessageDelayed(ON_TEXT_CHANGED, DELAY_IN_MILLISECOND);
}
@Override
public void handleMessage(Message msg) {
if (getActivity() == null) {
return;
}
if (msg.what == ON_TEXT_CHANGED) {
updateUi();
}
}
}
}
public static class SaveAndFinishWorker extends SaveChosenLockWorkerBase {
private LockscreenCredential mChosenPassword;
private LockscreenCredential mCurrentCredential;
public void start(LockPatternUtils utils, boolean required,
boolean requestGatekeeperPassword, LockscreenCredential chosenPassword,
LockscreenCredential currentCredential, int userId) {
prepare(utils, required, requestGatekeeperPassword, userId);
mChosenPassword = chosenPassword;
mCurrentCredential = currentCredential != null ? currentCredential
: LockscreenCredential.createNone();
mUserId = userId;
start();
}
@Override
protected Pair<Boolean, Intent> saveAndVerifyInBackground() {
final boolean success = mUtils.setLockCredential(
mChosenPassword, mCurrentCredential, mUserId);
if (success) {
unifyProfileCredentialIfRequested();
}
Intent result = null;
if (success && mRequestGatekeeperPassword) {
// If a Gatekeeper Password was requested, invoke the LockSettingsService code
// path to return a Gatekeeper Password based on the credential that the user
// chose. This should only be run if the credential was successfully set.
final VerifyCredentialResponse response = mUtils.verifyCredential(mChosenPassword,
mUserId, LockPatternUtils.VERIFY_FLAG_REQUEST_GK_PW_HANDLE);
if (!response.isMatched() || !response.containsGatekeeperPasswordHandle()) {
Log.e(TAG, "critical: bad response or missing GK PW handle for known good"
+ " password: " + response.toString());
}
result = new Intent();
result.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_GK_PW_HANDLE,
response.getGatekeeperPasswordHandle());
}
return Pair.create(success, result);
}
}
}