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/*
* Copyright © 2018-2019 AT&T Intellectual Property.
*
* 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 org.onap.ccsdk.cds.blueprintsprocessor.grpc.service
import io.grpc.ManagedChannel
import io.grpc.internal.DnsNameResolverProvider
import io.grpc.netty.GrpcSslContexts
import io.grpc.netty.NettyChannelBuilder
import io.netty.handler.ssl.SslContext
import org.onap.ccsdk.cds.blueprintsprocessor.grpc.TLSAuthGrpcClientProperties
import org.onap.ccsdk.cds.blueprintsprocessor.grpc.interceptor.GrpcClientLoggingInterceptor
import org.onap.ccsdk.cds.controllerblueprints.core.normalizedFile
class TLSAuthGrpcClientService(private val tlsAuthGrpcClientProperties: TLSAuthGrpcClientProperties) :
BluePrintGrpcClientService {
override suspend fun channel(): ManagedChannel {
val target =
if (tlsAuthGrpcClientProperties.port == -1) tlsAuthGrpcClientProperties.host
else "${tlsAuthGrpcClientProperties.host}:${tlsAuthGrpcClientProperties.port}"
return NettyChannelBuilder
.forTarget(target)
.nameResolverFactory(DnsNameResolverProvider())
.intercept(GrpcClientLoggingInterceptor())
.sslContext(sslContext())
.build()
}
fun sslContext(): SslContext {
val builder = GrpcSslContexts.forClient()
if (tlsAuthGrpcClientProperties.trustCertCollection != null) {
builder.trustManager(normalizedFile(tlsAuthGrpcClientProperties.trustCertCollection!!))
}
if (tlsAuthGrpcClientProperties.clientCertChain != null &&
tlsAuthGrpcClientProperties.clientPrivateKey != null
) {
builder.keyManager(
normalizedFile(tlsAuthGrpcClientProperties.clientCertChain!!),
normalizedFile(tlsAuthGrpcClientProperties.clientPrivateKey!!)
)
}
return builder.build()
}
}
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