| /** |
| * 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.server.fingerprint; |
| |
| import android.content.Context; |
| import android.hardware.fingerprint.FingerprintManager; |
| import android.hardware.fingerprint.IFingerprintDaemon; |
| import android.hardware.fingerprint.IFingerprintServiceReceiver; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.util.Slog; |
| |
| import com.android.internal.logging.MetricsLogger; |
| import com.android.internal.logging.MetricsProto.MetricsEvent; |
| |
| import java.util.Arrays; |
| |
| /** |
| * A class to keep track of the enrollment state for a given client. |
| */ |
| public abstract class EnrollClient extends ClientMonitor { |
| private static final long MS_PER_SEC = 1000; |
| private static final int ENROLLMENT_TIMEOUT_MS = 60 * 1000; // 1 minute |
| private byte[] mCryptoToken; |
| |
| public EnrollClient(Context context, long halDeviceId, IBinder token, |
| IFingerprintServiceReceiver receiver, int userId, int groupId, byte [] cryptoToken, |
| boolean restricted, String owner) { |
| super(context, halDeviceId, token, receiver, userId, groupId, restricted, owner); |
| mCryptoToken = Arrays.copyOf(cryptoToken, cryptoToken.length); |
| } |
| |
| @Override |
| public boolean onEnrollResult(int fingerId, int groupId, int remaining) { |
| if (groupId != getGroupId()) { |
| Slog.w(TAG, "groupId != getGroupId(), groupId: " + groupId + |
| " getGroupId():" + getGroupId()); |
| } |
| if (remaining == 0) { |
| FingerprintUtils.getInstance().addFingerprintForUser(getContext(), fingerId, |
| getTargetUserId()); |
| } |
| return sendEnrollResult(fingerId, groupId, remaining); |
| } |
| |
| /* |
| * @return true if we're done. |
| */ |
| private boolean sendEnrollResult(int fpId, int groupId, int remaining) { |
| IFingerprintServiceReceiver receiver = getReceiver(); |
| if (receiver == null) |
| return true; // client not listening |
| |
| FingerprintUtils.vibrateFingerprintSuccess(getContext()); |
| MetricsLogger.action(getContext(), MetricsEvent.ACTION_FINGERPRINT_ENROLL); |
| try { |
| receiver.onEnrollResult(getHalDeviceId(), fpId, groupId, remaining); |
| return remaining == 0; |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to notify EnrollResult:", e); |
| return true; |
| } |
| } |
| |
| @Override |
| public int start() { |
| IFingerprintDaemon daemon = getFingerprintDaemon(); |
| if (daemon == null) { |
| Slog.w(TAG, "enroll: no fingeprintd!"); |
| return ERROR_ESRCH; |
| } |
| final int timeout = (int) (ENROLLMENT_TIMEOUT_MS / MS_PER_SEC); |
| try { |
| final int result = daemon.enroll(mCryptoToken, getGroupId(), timeout); |
| if (result != 0) { |
| Slog.w(TAG, "startEnroll failed, result=" + result); |
| MetricsLogger.histogram(getContext(), "fingerprintd_enroll_start_error", result); |
| onError(FingerprintManager.FINGERPRINT_ERROR_HW_UNAVAILABLE); |
| return result; |
| } |
| } catch (RemoteException e) { |
| Slog.e(TAG, "startEnroll failed", e); |
| } |
| return 0; // success |
| } |
| |
| @Override |
| public int stop(boolean initiatedByClient) { |
| IFingerprintDaemon daemon = getFingerprintDaemon(); |
| if (daemon == null) { |
| Slog.w(TAG, "stopEnrollment: no fingeprintd!"); |
| return ERROR_ESRCH; |
| } |
| try { |
| final int result = daemon.cancelEnrollment(); |
| if (result != 0) { |
| Slog.w(TAG, "startEnrollCancel failed, result = " + result); |
| return result; |
| } |
| } catch (RemoteException e) { |
| Slog.e(TAG, "stopEnrollment failed", e); |
| } |
| if (initiatedByClient) { |
| onError(FingerprintManager.FINGERPRINT_ERROR_CANCELED); |
| } |
| return 0; |
| } |
| |
| @Override |
| public boolean onRemoved(int fingerId, int groupId) { |
| if (DEBUG) Slog.w(TAG, "onRemoved() called for enroll!"); |
| return true; // Invalid for EnrollClient |
| } |
| |
| @Override |
| public boolean onEnumerationResult(int fingerId, int groupId) { |
| if (DEBUG) Slog.w(TAG, "onEnumerationResult() called for enroll!"); |
| return true; // Invalid for EnrollClient |
| } |
| |
| @Override |
| public boolean onAuthenticated(int fingerId, int groupId) { |
| if (DEBUG) Slog.w(TAG, "onAuthenticated() called for enroll!"); |
| return true; // Invalid for EnrollClient |
| } |
| |
| } |