| /* |
| * Copyright (C) 2016 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 com.android.internal.util.Preconditions.checkNotNull; |
| |
| import android.annotation.Nullable; |
| import android.app.admin.DevicePolicyManager; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.PackageManager; |
| import android.hardware.fingerprint.FingerprintManager; |
| import android.os.Bundle; |
| import android.os.UserHandle; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.settings.ChooseLockGeneric; |
| import com.android.settings.ChooseLockSettingsHelper; |
| |
| /** |
| * Business logic for {@link SetNewPasswordActivity}. |
| * |
| * <p>On devices that supports fingerprint, this controller directs the user to configure |
| * fingerprint + a backup password if the device admin allows fingerprint for keyguard and |
| * the user has never configured a fingerprint before. |
| */ |
| final class SetNewPasswordController { |
| |
| interface Ui { |
| /** Starts the {@link ChooseLockGeneric} activity with the given extras. */ |
| void launchChooseLock(@Nullable Bundle chooseLockFingerprintExtras); |
| } |
| |
| private final int mCurrentUserId; |
| private final PackageManager mPackageManager; |
| @Nullable private final FingerprintManager mFingerprintManager; |
| private final DevicePolicyManager mDevicePolicyManager; |
| private final Ui mUi; |
| |
| public SetNewPasswordController(Context context, Ui ui) { |
| this(context.getUserId(), |
| context.getPackageManager(), |
| (FingerprintManager) context.getSystemService(Context.FINGERPRINT_SERVICE), |
| (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE), |
| ui); |
| } |
| |
| @VisibleForTesting |
| SetNewPasswordController( |
| int currentUserId, |
| PackageManager packageManager, |
| FingerprintManager fingerprintManager, |
| DevicePolicyManager devicePolicyManager, |
| Ui ui) { |
| mCurrentUserId = currentUserId; |
| mPackageManager = checkNotNull(packageManager); |
| mFingerprintManager = fingerprintManager; |
| mDevicePolicyManager = checkNotNull(devicePolicyManager); |
| mUi = checkNotNull(ui); |
| } |
| |
| /** |
| * Dispatches the set new password intent to the correct activity that handles it. |
| */ |
| public void dispatchSetNewPasswordIntent() { |
| if (mPackageManager.hasSystemFeature(PackageManager.FEATURE_FINGERPRINT) |
| && mFingerprintManager != null |
| && mFingerprintManager.isHardwareDetected() |
| && !mFingerprintManager.hasEnrolledFingerprints() |
| && !isFingerprintDisabledByAdmin()) { |
| mUi.launchChooseLock(getFingerprintChooseLockExtras()); |
| } else { |
| mUi.launchChooseLock(null); |
| } |
| } |
| |
| private Bundle getFingerprintChooseLockExtras() { |
| Bundle chooseLockExtras = new Bundle(); |
| if (mFingerprintManager != null) { |
| long challenge = mFingerprintManager.preEnroll(); |
| chooseLockExtras.putInt(ChooseLockGeneric.ChooseLockGenericFragment.MINIMUM_QUALITY_KEY, |
| DevicePolicyManager.PASSWORD_QUALITY_SOMETHING); |
| chooseLockExtras.putBoolean( |
| ChooseLockGeneric.ChooseLockGenericFragment.HIDE_DISABLED_PREFS, true); |
| chooseLockExtras.putBoolean(ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, true); |
| chooseLockExtras.putLong(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, challenge); |
| chooseLockExtras.putBoolean(ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, true); |
| if (mCurrentUserId != UserHandle.USER_NULL) { |
| chooseLockExtras.putInt(Intent.EXTRA_USER_ID, mCurrentUserId); |
| } |
| } |
| return chooseLockExtras; |
| } |
| |
| private boolean isFingerprintDisabledByAdmin() { |
| int disabledFeatures = mDevicePolicyManager.getKeyguardDisabledFeatures( |
| null, mCurrentUserId); |
| return (disabledFeatures & DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT) != 0; |
| } |
| } |