| /* |
| * Copyright (C) 2019 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.systemui.biometrics; |
| |
| import android.annotation.NonNull; |
| import android.content.Context; |
| import android.graphics.drawable.Drawable; |
| import android.hardware.biometrics.BiometricPrompt; |
| import android.os.AsyncTask; |
| import android.os.Bundle; |
| import android.os.CountDownTimer; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.os.SystemClock; |
| import android.text.TextUtils; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.view.accessibility.AccessibilityManager; |
| import android.widget.ImageView; |
| import android.widget.LinearLayout; |
| import android.widget.TextView; |
| |
| import androidx.annotation.Nullable; |
| |
| import com.android.internal.widget.LockPatternUtils; |
| import com.android.systemui.Interpolators; |
| import com.android.systemui.R; |
| |
| /** |
| * Abstract base class for Pin, Pattern, or Password authentication, for |
| * {@link BiometricPrompt.Builder#setAllowedAuthenticators(int)}} |
| */ |
| public abstract class AuthCredentialView extends LinearLayout { |
| |
| private static final String TAG = "BiometricPrompt/AuthCredentialView"; |
| private static final int ERROR_DURATION_MS = 3000; |
| |
| private final AccessibilityManager mAccessibilityManager; |
| |
| protected final Handler mHandler; |
| |
| private Bundle mBiometricPromptBundle; |
| private AuthPanelController mPanelController; |
| private boolean mShouldAnimatePanel; |
| private boolean mShouldAnimateContents; |
| |
| private TextView mTitleView; |
| private TextView mSubtitleView; |
| private TextView mDescriptionView; |
| private ImageView mIconView; |
| protected TextView mErrorView; |
| |
| protected @Utils.CredentialType int mCredentialType; |
| protected final LockPatternUtils mLockPatternUtils; |
| protected AuthContainerView mContainerView; |
| protected Callback mCallback; |
| protected AsyncTask<?, ?, ?> mPendingLockCheck; |
| protected int mUserId; |
| protected long mOperationId; |
| protected int mEffectiveUserId; |
| protected ErrorTimer mErrorTimer; |
| |
| interface Callback { |
| void onCredentialMatched(byte[] attestation); |
| } |
| |
| protected static class ErrorTimer extends CountDownTimer { |
| private final TextView mErrorView; |
| private final Context mContext; |
| |
| /** |
| * @param millisInFuture The number of millis in the future from the call |
| * to {@link #start()} until the countdown is done and {@link |
| * #onFinish()} |
| * is called. |
| * @param countDownInterval The interval along the way to receive |
| * {@link #onTick(long)} callbacks. |
| */ |
| public ErrorTimer(Context context, long millisInFuture, long countDownInterval, |
| TextView errorView) { |
| super(millisInFuture, countDownInterval); |
| mErrorView = errorView; |
| mContext = context; |
| } |
| |
| @Override |
| public void onTick(long millisUntilFinished) { |
| final int secondsCountdown = (int) (millisUntilFinished / 1000); |
| mErrorView.setText(mContext.getString( |
| R.string.biometric_dialog_credential_too_many_attempts, secondsCountdown)); |
| } |
| |
| @Override |
| public void onFinish() { |
| mErrorView.setText(""); |
| } |
| } |
| |
| protected final Runnable mClearErrorRunnable = new Runnable() { |
| @Override |
| public void run() { |
| mErrorView.setText(""); |
| } |
| }; |
| |
| public AuthCredentialView(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| |
| mLockPatternUtils = new LockPatternUtils(mContext); |
| mHandler = new Handler(Looper.getMainLooper()); |
| mAccessibilityManager = mContext.getSystemService(AccessibilityManager.class); |
| } |
| |
| protected void showError(String error) { |
| mHandler.removeCallbacks(mClearErrorRunnable); |
| mErrorView.setText(error); |
| mHandler.postDelayed(mClearErrorRunnable, ERROR_DURATION_MS); |
| } |
| |
| private void setTextOrHide(TextView view, CharSequence text) { |
| if (TextUtils.isEmpty(text)) { |
| view.setVisibility(View.GONE); |
| } else { |
| view.setText(text); |
| } |
| |
| Utils.notifyAccessibilityContentChanged(mAccessibilityManager, this); |
| } |
| |
| private void setText(TextView view, CharSequence text) { |
| view.setText(text); |
| } |
| |
| void setUserId(int userId) { |
| mUserId = userId; |
| } |
| |
| void setOperationId(long operationId) { |
| mOperationId = operationId; |
| } |
| |
| void setEffectiveUserId(int effectiveUserId) { |
| mEffectiveUserId = effectiveUserId; |
| } |
| |
| void setCredentialType(@Utils.CredentialType int credentialType) { |
| mCredentialType = credentialType; |
| } |
| |
| void setCallback(Callback callback) { |
| mCallback = callback; |
| } |
| |
| void setBiometricPromptBundle(Bundle bundle) { |
| mBiometricPromptBundle = bundle; |
| } |
| |
| void setPanelController(AuthPanelController panelController, boolean animatePanel) { |
| mPanelController = panelController; |
| mShouldAnimatePanel = animatePanel; |
| } |
| |
| void setShouldAnimateContents(boolean animateContents) { |
| mShouldAnimateContents = animateContents; |
| } |
| |
| void setContainerView(AuthContainerView containerView) { |
| mContainerView = containerView; |
| } |
| |
| @Override |
| protected void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| |
| setText(mTitleView, getTitle(mBiometricPromptBundle)); |
| setTextOrHide(mSubtitleView, getSubtitle(mBiometricPromptBundle)); |
| setTextOrHide(mDescriptionView, getDescription(mBiometricPromptBundle)); |
| |
| final boolean isManagedProfile = Utils.isManagedProfile(mContext, mEffectiveUserId); |
| final Drawable image; |
| if (isManagedProfile) { |
| image = getResources().getDrawable(R.drawable.auth_dialog_enterprise, |
| mContext.getTheme()); |
| } else { |
| image = getResources().getDrawable(R.drawable.auth_dialog_lock, mContext.getTheme()); |
| } |
| mIconView.setImageDrawable(image); |
| |
| // Only animate this if we're transitioning from a biometric view. |
| if (mShouldAnimateContents) { |
| setTranslationY(getResources() |
| .getDimension(R.dimen.biometric_dialog_credential_translation_offset)); |
| setAlpha(0); |
| |
| postOnAnimation(() -> { |
| animate().translationY(0) |
| .setDuration(AuthDialog.ANIMATE_CREDENTIAL_INITIAL_DURATION_MS) |
| .alpha(1.f) |
| .setInterpolator(Interpolators.LINEAR_OUT_SLOW_IN) |
| .withLayer() |
| .start(); |
| }); |
| } |
| } |
| |
| @Override |
| protected void onDetachedFromWindow() { |
| super.onDetachedFromWindow(); |
| if (mErrorTimer != null) { |
| mErrorTimer.cancel(); |
| } |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| super.onFinishInflate(); |
| mTitleView = findViewById(R.id.title); |
| mSubtitleView = findViewById(R.id.subtitle); |
| mDescriptionView = findViewById(R.id.description); |
| mIconView = findViewById(R.id.icon); |
| mErrorView = findViewById(R.id.error); |
| } |
| |
| @Override |
| protected void onLayout(boolean changed, int left, int top, int right, int bottom) { |
| super.onLayout(changed, left, top, right, bottom); |
| |
| if (mShouldAnimatePanel) { |
| // Credential view is always full screen. |
| mPanelController.setUseFullScreen(true); |
| mPanelController.updateForContentDimensions(mPanelController.getContainerWidth(), |
| mPanelController.getContainerHeight(), 0 /* animateDurationMs */); |
| mShouldAnimatePanel = false; |
| } |
| } |
| |
| protected void onErrorTimeoutFinish() {} |
| |
| protected void onCredentialVerified(byte[] attestation, int timeoutMs) { |
| |
| final boolean matched = attestation != null; |
| |
| if (matched) { |
| mClearErrorRunnable.run(); |
| mCallback.onCredentialMatched(attestation); |
| } else { |
| if (timeoutMs > 0) { |
| mHandler.removeCallbacks(mClearErrorRunnable); |
| long deadline = mLockPatternUtils.setLockoutAttemptDeadline( |
| mEffectiveUserId, timeoutMs); |
| mErrorTimer = new ErrorTimer(mContext, |
| deadline - SystemClock.elapsedRealtime(), |
| LockPatternUtils.FAILED_ATTEMPT_COUNTDOWN_INTERVAL_MS, |
| mErrorView) { |
| @Override |
| public void onFinish() { |
| onErrorTimeoutFinish(); |
| mClearErrorRunnable.run(); |
| } |
| }; |
| mErrorTimer.start(); |
| } else { |
| final int error; |
| switch (mCredentialType) { |
| case Utils.CREDENTIAL_PIN: |
| error = R.string.biometric_dialog_wrong_pin; |
| break; |
| case Utils.CREDENTIAL_PATTERN: |
| error = R.string.biometric_dialog_wrong_pattern; |
| break; |
| case Utils.CREDENTIAL_PASSWORD: |
| error = R.string.biometric_dialog_wrong_password; |
| break; |
| default: |
| error = R.string.biometric_dialog_wrong_password; |
| break; |
| } |
| showError(getResources().getString(error)); |
| } |
| } |
| } |
| |
| @Nullable |
| private static CharSequence getTitle(@NonNull Bundle bundle) { |
| final CharSequence credentialTitle = |
| bundle.getCharSequence(BiometricPrompt.KEY_DEVICE_CREDENTIAL_TITLE); |
| return credentialTitle != null ? credentialTitle |
| : bundle.getCharSequence(BiometricPrompt.KEY_TITLE); |
| } |
| |
| @Nullable |
| private static CharSequence getSubtitle(@NonNull Bundle bundle) { |
| final CharSequence credentialSubtitle = |
| bundle.getCharSequence(BiometricPrompt.KEY_DEVICE_CREDENTIAL_SUBTITLE); |
| return credentialSubtitle != null ? credentialSubtitle |
| : bundle.getCharSequence(BiometricPrompt.KEY_SUBTITLE); |
| } |
| |
| @Nullable |
| private static CharSequence getDescription(@NonNull Bundle bundle) { |
| final CharSequence credentialDescription = |
| bundle.getCharSequence(BiometricPrompt.KEY_DEVICE_CREDENTIAL_DESCRIPTION); |
| return credentialDescription != null ? credentialDescription |
| : bundle.getCharSequence(BiometricPrompt.KEY_DESCRIPTION); |
| } |
| } |