library/src/main/java/org/apache/fineract/cn/anubis/provider/TenantRsaKeyProvider.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.fineract.cn.anubis.provider;

import org.apache.fineract.cn.anubis.api.v1.domain.Signature;
import org.apache.fineract.cn.anubis.config.TenantSignatureRepository;
import org.apache.fineract.cn.lang.security.RsaPublicKeyBuilder;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.security.PublicKey;
import java.util.Optional;

/**
 * @author Myrle Krantz
 */
@Component
public class TenantRsaKeyProvider {

  private final TenantSignatureRepository tenantSignatureRepository;

  @Autowired
  public TenantRsaKeyProvider(final TenantSignatureRepository tenantSignatureRepository)
  {
    this.tenantSignatureRepository = tenantSignatureRepository;
  }

  public PublicKey getPublicKey(final String keyTimestamp) throws InvalidKeyTimestampException {
    final Optional<Signature> tenantAuthorizationData =
        tenantSignatureRepository.getIdentityManagerSignature(keyTimestamp);

    return
        tenantAuthorizationData.map(x -> new RsaPublicKeyBuilder()
        .setPublicKeyMod(x.getPublicKeyMod())
        .setPublicKeyExp(x.getPublicKeyExp())
        .build()).orElseThrow(() -> new InvalidKeyTimestampException(keyTimestamp + " + not initialized."));
  }
}