Files
app_Settings/src/com/android/settings/ConfirmLockPattern.java
Clara Bayarri 9d357ea072 Call reportFailedPasswordAttempt from Work Challenge
Entering the wrong credential in ConfirmDeviceCredentials should
also count as failed attempts for the password, after which the
DPC have set a restriction to wipe the work profile.

Fixed related issues, such as the CredentialChecker re-sending
the result after onResume causing additional attempts to be counted.

The new error message String is also displayed initially when there
are pending attempts to inform the user that they are not starting
from fresh.

Bug: 26677759
Change-Id: I70cfae4c05e705ad7fe93bc071426459b79e7d0c
2016-02-17 12:22:16 +00:00

553 lines
23 KiB
Java

/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings;
import android.app.Activity;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.os.SystemClock;
import android.os.UserManager;
import android.os.storage.StorageManager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AnimationUtils;
import android.view.animation.Interpolator;
import android.widget.TextView;
import com.android.internal.logging.MetricsProto.MetricsEvent;
import com.android.internal.widget.LinearLayoutWithDefaultTouchRecepient;
import com.android.internal.widget.LockPatternChecker;
import com.android.internal.widget.LockPatternUtils;
import com.android.internal.widget.LockPatternView;
import com.android.internal.widget.LockPatternView.Cell;
import com.android.settingslib.animation.AppearAnimationCreator;
import com.android.settingslib.animation.AppearAnimationUtils;
import com.android.settingslib.animation.DisappearAnimationUtils;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* Launch this when you want the user to confirm their lock pattern.
*
* Sets an activity result of {@link Activity#RESULT_OK} when the user
* successfully confirmed their pattern.
*/
public class ConfirmLockPattern extends ConfirmDeviceCredentialBaseActivity {
public static class InternalActivity extends ConfirmLockPattern {
}
private enum Stage {
NeedToUnlock,
NeedToUnlockWrong,
LockedOut
}
@Override
public Intent getIntent() {
Intent modIntent = new Intent(super.getIntent());
modIntent.putExtra(EXTRA_SHOW_FRAGMENT, ConfirmLockPatternFragment.class.getName());
return modIntent;
}
@Override
protected boolean isValidFragment(String fragmentName) {
if (ConfirmLockPatternFragment.class.getName().equals(fragmentName)) return true;
return false;
}
public static class ConfirmLockPatternFragment extends ConfirmDeviceCredentialBaseFragment
implements AppearAnimationCreator<Object>, CredentialCheckResultTracker.Listener {
// how long we wait to clear a wrong pattern
private static final int WRONG_PATTERN_CLEAR_TIMEOUT_MS = 2000;
private static final String FRAGMENT_TAG_CHECK_LOCK_RESULT = "check_lock_result";
private LockPatternView mLockPatternView;
private AsyncTask<?, ?, ?> mPendingLockCheck;
private CredentialCheckResultTracker mCredentialCheckResultTracker;
private boolean mDisappearing = false;
private CountDownTimer mCountdownTimer;
private TextView mHeaderTextView;
private TextView mDetailsTextView;
private View mLeftSpacerLandscape;
private View mRightSpacerLandscape;
// caller-supplied text for various prompts
private CharSequence mHeaderText;
private CharSequence mDetailsText;
private AppearAnimationUtils mAppearAnimationUtils;
private DisappearAnimationUtils mDisappearAnimationUtils;
// required constructor for fragments
public ConfirmLockPatternFragment() {
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.confirm_lock_pattern, null);
mHeaderTextView = (TextView) view.findViewById(R.id.headerText);
mLockPatternView = (LockPatternView) view.findViewById(R.id.lockPattern);
mDetailsTextView = (TextView) view.findViewById(R.id.detailsText);
mErrorTextView = (TextView) view.findViewById(R.id.errorText);
mLeftSpacerLandscape = view.findViewById(R.id.leftSpacer);
mRightSpacerLandscape = view.findViewById(R.id.rightSpacer);
// make it so unhandled touch events within the unlock screen go to the
// lock pattern view.
final LinearLayoutWithDefaultTouchRecepient topLayout
= (LinearLayoutWithDefaultTouchRecepient) view.findViewById(R.id.topLayout);
topLayout.setDefaultTouchRecepient(mLockPatternView);
Intent intent = getActivity().getIntent();
if (intent != null) {
mHeaderText = intent.getCharSequenceExtra(
ConfirmDeviceCredentialBaseFragment.HEADER_TEXT);
mDetailsText = intent.getCharSequenceExtra(
ConfirmDeviceCredentialBaseFragment.DETAILS_TEXT);
}
mLockPatternView.setTactileFeedbackEnabled(
mLockPatternUtils.isTactileFeedbackEnabled());
mLockPatternView.setInStealthMode(!mLockPatternUtils.isVisiblePatternEnabled(
mEffectiveUserId));
mLockPatternView.setOnPatternListener(mConfirmExistingLockPatternListener);
updateStage(Stage.NeedToUnlock);
if (savedInstanceState == null) {
// on first launch, if no lock pattern is set, then finish with
// success (don't want user to get stuck confirming something that
// doesn't exist).
if (!mLockPatternUtils.isLockPatternEnabled(mEffectiveUserId)) {
getActivity().setResult(Activity.RESULT_OK);
getActivity().finish();
}
}
mAppearAnimationUtils = new AppearAnimationUtils(getContext(),
AppearAnimationUtils.DEFAULT_APPEAR_DURATION, 2f /* translationScale */,
1.3f /* delayScale */, AnimationUtils.loadInterpolator(
getContext(), android.R.interpolator.linear_out_slow_in));
mDisappearAnimationUtils = new DisappearAnimationUtils(getContext(),
125, 4f /* translationScale */,
0.3f /* delayScale */, AnimationUtils.loadInterpolator(
getContext(), android.R.interpolator.fast_out_linear_in),
new AppearAnimationUtils.RowTranslationScaler() {
@Override
public float getRowTranslationScale(int row, int numRows) {
return (float)(numRows - row) / numRows;
}
});
setAccessibilityTitle(mHeaderTextView.getText());
mCredentialCheckResultTracker = (CredentialCheckResultTracker) getFragmentManager()
.findFragmentByTag(FRAGMENT_TAG_CHECK_LOCK_RESULT);
if (mCredentialCheckResultTracker == null) {
mCredentialCheckResultTracker = new CredentialCheckResultTracker();
getFragmentManager().beginTransaction().add(mCredentialCheckResultTracker,
FRAGMENT_TAG_CHECK_LOCK_RESULT).commit();
}
return view;
}
@Override
public void onSaveInstanceState(Bundle outState) {
// deliberately not calling super since we are managing this in full
}
@Override
public void onPause() {
super.onPause();
if (mCountdownTimer != null) {
mCountdownTimer.cancel();
}
mCredentialCheckResultTracker.setListener(null);
}
@Override
protected int getMetricsCategory() {
return MetricsEvent.CONFIRM_LOCK_PATTERN;
}
@Override
public void onResume() {
super.onResume();
// if the user is currently locked out, enforce it.
long deadline = mLockPatternUtils.getLockoutAttemptDeadline(mEffectiveUserId);
if (deadline != 0) {
mCredentialCheckResultTracker.clearResult();
handleAttemptLockout(deadline);
} else if (!mLockPatternView.isEnabled()) {
// The deadline has passed, but the timer was cancelled. Or the pending lock
// check was cancelled. Need to clean up.
updateStage(Stage.NeedToUnlock);
}
mCredentialCheckResultTracker.setListener(this);
}
@Override
protected void onShowError() {
}
@Override
public void prepareEnterAnimation() {
super.prepareEnterAnimation();
mHeaderTextView.setAlpha(0f);
mCancelButton.setAlpha(0f);
mLockPatternView.setAlpha(0f);
mDetailsTextView.setAlpha(0f);
mFingerprintIcon.setAlpha(0f);
}
private Object[][] getActiveViews() {
ArrayList<ArrayList<Object>> result = new ArrayList<>();
result.add(new ArrayList<Object>(Collections.singletonList(mHeaderTextView)));
result.add(new ArrayList<Object>(Collections.singletonList(mDetailsTextView)));
if (mCancelButton.getVisibility() == View.VISIBLE) {
result.add(new ArrayList<Object>(Collections.singletonList(mCancelButton)));
}
LockPatternView.CellState[][] cellStates = mLockPatternView.getCellStates();
for (int i = 0; i < cellStates.length; i++) {
ArrayList<Object> row = new ArrayList<>();
for (int j = 0; j < cellStates[i].length; j++) {
row.add(cellStates[i][j]);
}
result.add(row);
}
if (mFingerprintIcon.getVisibility() == View.VISIBLE) {
result.add(new ArrayList<Object>(Collections.singletonList(mFingerprintIcon)));
}
Object[][] resultArr = new Object[result.size()][cellStates[0].length];
for (int i = 0; i < result.size(); i++) {
ArrayList<Object> row = result.get(i);
for (int j = 0; j < row.size(); j++) {
resultArr[i][j] = row.get(j);
}
}
return resultArr;
}
@Override
public void startEnterAnimation() {
super.startEnterAnimation();
mLockPatternView.setAlpha(1f);
mAppearAnimationUtils.startAnimation2d(getActiveViews(), null, this);
}
private void updateStage(Stage stage) {
switch (stage) {
case NeedToUnlock:
if (mHeaderText != null) {
mHeaderTextView.setText(mHeaderText);
} else {
mHeaderTextView.setText(R.string.lockpassword_confirm_your_pattern_header);
}
if (mDetailsText != null) {
mDetailsTextView.setText(mDetailsText);
} else if (!Utils.isManagedProfile(
UserManager.get(getActivity()), mEffectiveUserId)) {
mDetailsTextView.setText(
R.string.lockpassword_confirm_your_pattern_generic);
} else {
mDetailsTextView.setText(
R.string.lockpassword_confirm_your_pattern_generic_profile);
}
mErrorTextView.setText("");
if (isProfileChallenge()) {
updateErrorMessage(mLockPatternUtils.getCurrentFailedPasswordAttempts(
mEffectiveUserId));
}
mLockPatternView.setEnabled(true);
mLockPatternView.enableInput();
mLockPatternView.clearPattern();
break;
case NeedToUnlockWrong:
mErrorTextView.setText(R.string.lockpattern_need_to_unlock_wrong);
mLockPatternView.setDisplayMode(LockPatternView.DisplayMode.Wrong);
mLockPatternView.setEnabled(true);
mLockPatternView.enableInput();
break;
case LockedOut:
mLockPatternView.clearPattern();
// enabled = false means: disable input, and have the
// appearance of being disabled.
mLockPatternView.setEnabled(false); // appearance of being disabled
break;
}
// Always announce the header for accessibility. This is a no-op
// when accessibility is disabled.
mHeaderTextView.announceForAccessibility(mHeaderTextView.getText());
}
private Runnable mClearPatternRunnable = new Runnable() {
public void run() {
mLockPatternView.clearPattern();
}
};
// clear the wrong pattern unless they have started a new one
// already
private void postClearPatternRunnable() {
mLockPatternView.removeCallbacks(mClearPatternRunnable);
mLockPatternView.postDelayed(mClearPatternRunnable, WRONG_PATTERN_CLEAR_TIMEOUT_MS);
}
@Override
protected void authenticationSucceeded() {
mCredentialCheckResultTracker.setResult(true, new Intent(), 0, mEffectiveUserId);
}
private void startDisappearAnimation(final Intent intent) {
if (mDisappearing) {
return;
}
mDisappearing = true;
if (getActivity().getThemeResId() == R.style.Theme_ConfirmDeviceCredentialsDark) {
mLockPatternView.clearPattern();
mDisappearAnimationUtils.startAnimation2d(getActiveViews(),
new Runnable() {
@Override
public void run() {
// Bail if there is no active activity.
if (getActivity() == null || getActivity().isFinishing()) {
return;
}
getActivity().setResult(RESULT_OK, intent);
getActivity().finish();
getActivity().overridePendingTransition(
R.anim.confirm_credential_close_enter,
R.anim.confirm_credential_close_exit);
}
}, this);
} else {
getActivity().setResult(RESULT_OK, intent);
getActivity().finish();
}
}
@Override
public void onFingerprintIconVisibilityChanged(boolean visible) {
if (mLeftSpacerLandscape != null && mRightSpacerLandscape != null) {
// In landscape, adjust spacing depending on fingerprint icon visibility.
mLeftSpacerLandscape.setVisibility(visible ? View.GONE : View.VISIBLE);
mRightSpacerLandscape.setVisibility(visible ? View.GONE : View.VISIBLE);
}
}
/**
* The pattern listener that responds according to a user confirming
* an existing lock pattern.
*/
private LockPatternView.OnPatternListener mConfirmExistingLockPatternListener
= new LockPatternView.OnPatternListener() {
public void onPatternStart() {
mLockPatternView.removeCallbacks(mClearPatternRunnable);
}
public void onPatternCleared() {
mLockPatternView.removeCallbacks(mClearPatternRunnable);
}
public void onPatternCellAdded(List<Cell> pattern) {
}
public void onPatternDetected(List<LockPatternView.Cell> pattern) {
if (mPendingLockCheck != null || mDisappearing) {
return;
}
mLockPatternView.setEnabled(false);
final boolean verifyChallenge = getActivity().getIntent().getBooleanExtra(
ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, false);
Intent intent = new Intent();
if (verifyChallenge) {
if (isInternalActivity()) {
startVerifyPattern(pattern, intent);
return;
}
} else {
startCheckPattern(pattern, intent);
return;
}
mCredentialCheckResultTracker.setResult(false, intent, 0, mEffectiveUserId);
}
private boolean isInternalActivity() {
return getActivity() instanceof ConfirmLockPattern.InternalActivity;
}
private void startVerifyPattern(final List<LockPatternView.Cell> pattern,
final Intent intent) {
final int localEffectiveUserId = mEffectiveUserId;
long challenge = getActivity().getIntent().getLongExtra(
ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, 0);
mPendingLockCheck = LockPatternChecker.verifyPattern(
mLockPatternUtils,
pattern,
challenge,
localEffectiveUserId,
new LockPatternChecker.OnVerifyCallback() {
@Override
public void onVerified(byte[] token, int timeoutMs) {
mPendingLockCheck = null;
boolean matched = false;
if (token != null) {
matched = true;
intent.putExtra(
ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN,
token);
}
mCredentialCheckResultTracker.setResult(matched, intent, timeoutMs,
localEffectiveUserId);
}
});
}
private void startCheckPattern(final List<LockPatternView.Cell> pattern,
final Intent intent) {
if (pattern.size() < LockPatternUtils.MIN_PATTERN_REGISTER_FAIL) {
mCredentialCheckResultTracker.setResult(false, intent, 0, mEffectiveUserId);
return;
}
final int localEffectiveUserId = mEffectiveUserId;
mPendingLockCheck = LockPatternChecker.checkPattern(
mLockPatternUtils,
pattern,
localEffectiveUserId,
new LockPatternChecker.OnCheckCallback() {
@Override
public void onChecked(boolean matched, int timeoutMs) {
mPendingLockCheck = null;
if (matched && isInternalActivity()) {
intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_TYPE,
StorageManager.CRYPT_TYPE_PATTERN);
intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD,
LockPatternUtils.patternToString(pattern));
}
mCredentialCheckResultTracker.setResult(matched, intent, timeoutMs,
localEffectiveUserId);
}
});
}
};
private void onPatternChecked(boolean matched, Intent intent, int timeoutMs,
int effectiveUserId, boolean newResult) {
mLockPatternView.setEnabled(true);
if (matched) {
if (newResult) {
reportSuccessfullAttempt();
}
startDisappearAnimation(intent);
checkForPendingIntent();
} else {
if (timeoutMs > 0) {
long deadline = mLockPatternUtils.setLockoutAttemptDeadline(
effectiveUserId, timeoutMs);
handleAttemptLockout(deadline);
} else {
updateStage(Stage.NeedToUnlockWrong);
postClearPatternRunnable();
}
if (newResult) {
reportFailedAttempt();
}
}
}
@Override
public void onCredentialChecked(boolean matched, Intent intent, int timeoutMs,
int effectiveUserId, boolean newResult) {
onPatternChecked(matched, intent, timeoutMs, effectiveUserId, newResult);
}
@Override
protected int getLastTryErrorMessage() {
return R.string.lock_profile_wipe_warning_content_pattern;
}
private void handleAttemptLockout(long elapsedRealtimeDeadline) {
updateStage(Stage.LockedOut);
long elapsedRealtime = SystemClock.elapsedRealtime();
mCountdownTimer = new CountDownTimer(
elapsedRealtimeDeadline - elapsedRealtime,
LockPatternUtils.FAILED_ATTEMPT_COUNTDOWN_INTERVAL_MS) {
@Override
public void onTick(long millisUntilFinished) {
final int secondsCountdown = (int) (millisUntilFinished / 1000);
mErrorTextView.setText(getString(
R.string.lockpattern_too_many_failed_confirmation_attempts,
secondsCountdown));
}
@Override
public void onFinish() {
updateStage(Stage.NeedToUnlock);
}
}.start();
}
@Override
public void createAnimation(Object obj, long delay,
long duration, float translationY, final boolean appearing,
Interpolator interpolator,
final Runnable finishListener) {
if (obj instanceof LockPatternView.CellState) {
final LockPatternView.CellState animatedCell = (LockPatternView.CellState) obj;
mLockPatternView.startCellStateAnimation(animatedCell,
1f, appearing ? 1f : 0f, /* alpha */
appearing ? translationY : 0f, /* startTranslation */
appearing ? 0f : translationY, /* endTranslation */
appearing ? 0f : 1f, 1f /* scale */,
delay, duration, interpolator, finishListener);
} else {
mAppearAnimationUtils.createAnimation((View) obj, delay, duration, translationY,
appearing, interpolator, finishListener);
}
}
}
}