| // Copyright 2022 Google LLC |
| // |
| // 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.google.crypto.tink.internal; |
| |
| import com.google.crypto.tink.KeyStatus; |
| import com.google.crypto.tink.PrimitiveSet; |
| import com.google.crypto.tink.monitoring.MonitoringClient; |
| import com.google.crypto.tink.monitoring.MonitoringKeysetInfo; |
| import com.google.crypto.tink.proto.KeyStatusType; |
| import java.security.GeneralSecurityException; |
| import java.util.List; |
| import javax.annotation.Nullable; |
| |
| /** Some util functions needed to add monitoring to the Primitives. */ |
| public final class MonitoringUtil { |
| |
| private static class DoNothingLogger implements MonitoringClient.Logger { |
| @Override |
| public void log(int keyId, long numBytesAsInput) {} |
| |
| @Override |
| public void logFailure() {} |
| } |
| |
| public static final MonitoringClient.Logger DO_NOTHING_LOGGER = new DoNothingLogger(); |
| |
| private static KeyStatus parseStatus(KeyStatusType in) { |
| switch (in) { |
| case ENABLED: |
| return KeyStatus.ENABLED; |
| case DISABLED: |
| return KeyStatus.DISABLED; |
| case DESTROYED: |
| return KeyStatus.DESTROYED; |
| default: |
| throw new IllegalStateException("Unknown key status"); |
| } |
| } |
| |
| public static <P> MonitoringKeysetInfo getMonitoringKeysetInfo(PrimitiveSet<P> primitiveSet) { |
| MonitoringKeysetInfo.Builder builder = MonitoringKeysetInfo.newBuilder(); |
| builder.setAnnotations(primitiveSet.getAnnotations()); |
| for (List<PrimitiveSet.Entry<P>> entries : primitiveSet.getAll()) { |
| for (PrimitiveSet.Entry<P> entry : entries) { |
| builder.addEntry(parseStatus(entry.getStatus()), entry.getKeyId(), entry.getParameters()); |
| } |
| } |
| @Nullable PrimitiveSet.Entry<P> primary = primitiveSet.getPrimary(); |
| if (primary != null) { |
| builder.setPrimaryKeyId(primitiveSet.getPrimary().getKeyId()); |
| } |
| try { |
| return builder.build(); |
| } catch (GeneralSecurityException e) { |
| // This shouldn't happen, since for PrimitiveSets, the primary's key id is always in the |
| // entries list. |
| throw new IllegalStateException(e); |
| } |
| } |
| |
| private MonitoringUtil() {} |
| } |