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Implement v2alpha public API DataProviders service.
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src/main/kotlin/org/wfanet/measurement/kingdom/service/api/v2alpha/DataProvidersService.kt
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| // Copyright 2021 The Cross-Media Measurement Authors | ||
| // | ||
| // 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. | ||
|
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| package org.wfanet.measurement.kingdom.service.api.v2alpha | ||
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| import io.grpc.Status | ||
| import java.security.cert.CertificateException | ||
| import java.security.cert.X509Certificate | ||
| import org.wfanet.measurement.api.Version | ||
| import org.wfanet.measurement.api.v2alpha.CreateDataProviderRequest | ||
| import org.wfanet.measurement.api.v2alpha.DataProvider | ||
| import org.wfanet.measurement.api.v2alpha.DataProviderCertificateKey | ||
| import org.wfanet.measurement.api.v2alpha.DataProviderKey | ||
| import org.wfanet.measurement.api.v2alpha.DataProvidersGrpcKt.DataProvidersCoroutineImplBase as DataProvidersCoroutineService | ||
| import org.wfanet.measurement.api.v2alpha.GetDataProviderRequest | ||
| import org.wfanet.measurement.api.v2alpha.SignedData | ||
| import org.wfanet.measurement.common.crypto.readCertificate | ||
| import org.wfanet.measurement.common.crypto.subjectKeyIdentifier | ||
| import org.wfanet.measurement.common.grpc.grpcRequire | ||
| import org.wfanet.measurement.common.grpc.grpcRequireNotNull | ||
| import org.wfanet.measurement.common.identity.apiIdToExternalId | ||
| import org.wfanet.measurement.common.identity.externalIdToApiId | ||
| import org.wfanet.measurement.common.toProtoTime | ||
| import org.wfanet.measurement.internal.kingdom.Certificate as InternalCertificate | ||
| import org.wfanet.measurement.internal.kingdom.DataProvider as InternalDataProvider | ||
| import org.wfanet.measurement.internal.kingdom.DataProvidersGrpcKt.DataProvidersCoroutineStub | ||
| import org.wfanet.measurement.internal.kingdom.GetDataProviderRequest as InternalGetDataProviderRequest | ||
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| private val API_VERSION = Version.V2_ALPHA | ||
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| class DataProvidersService(private val internalClient: DataProvidersCoroutineStub) : | ||
| DataProvidersCoroutineService() { | ||
| override suspend fun createDataProvider(request: CreateDataProviderRequest): DataProvider { | ||
| val dataProvider = request.dataProvider | ||
| grpcRequire(with(dataProvider.publicKey) { !data.isEmpty && !signature.isEmpty }) { | ||
| "public_key is not fully specified" | ||
| } | ||
| grpcRequire(!dataProvider.preferredCertificateDer.isEmpty) { | ||
| "preferred_certificate_der is not specified" | ||
| } | ||
| val x509Certificate: X509Certificate = | ||
| try { | ||
| readCertificate(dataProvider.preferredCertificateDer) | ||
| } catch (e: CertificateException) { | ||
| throw Status.INVALID_ARGUMENT | ||
| .withCause(e) | ||
| .withDescription("Cannot parse preferred_certificate_der") | ||
| .asRuntimeException() | ||
| } | ||
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| val internalResponse: InternalDataProvider = | ||
| internalClient.createDataProvider( | ||
| buildInternalDataProvider { | ||
| preferredCertificate { | ||
| subjectKeyIdentifier = x509Certificate.subjectKeyIdentifier | ||
| notValidBefore = x509Certificate.notBefore.toInstant().toProtoTime() | ||
| notValidAfter = x509Certificate.notAfter.toInstant().toProtoTime() | ||
| detailsBuilder.x509Der = dataProvider.preferredCertificateDer | ||
| } | ||
| details { | ||
| apiVersion = API_VERSION.string | ||
| publicKey = dataProvider.publicKey.data | ||
| publicKeySignature = dataProvider.publicKey.signature | ||
| } | ||
| } | ||
| // TODO(world-federation-of-advertisers/cross-media-measurement#119): Add authenticated user | ||
| // as owner. | ||
| ) | ||
| return internalResponse.toDataProvider() | ||
| } | ||
|
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| override suspend fun getDataProvider(request: GetDataProviderRequest): DataProvider { | ||
| val key: DataProviderKey = | ||
| grpcRequireNotNull(DataProviderKey.fromName(request.name)) { | ||
| "Resource name unspecified or invalid" | ||
| } | ||
| // TODO(world-federation-of-advertisers/cross-media-measurement#119): Pass credentials for | ||
| // ownership check. | ||
| val internalResponse: InternalDataProvider = | ||
| internalClient.getDataProvider( | ||
| buildInternalGetDataProviderRequest { | ||
| externalDataProviderId = apiIdToExternalId(key.dataProviderId) | ||
| } | ||
| ) | ||
| return internalResponse.toDataProvider() | ||
| } | ||
| } | ||
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| @DslMarker @Target(AnnotationTarget.CLASS, AnnotationTarget.TYPE) internal annotation class Builder | ||
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| internal inline fun buildDataProvider(fill: (@Builder DataProvider.Builder).() -> Unit) = | ||
| DataProvider.newBuilder().apply(fill).build() | ||
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| internal inline fun DataProvider.Builder.publicKey(fill: (@Builder SignedData.Builder).() -> Unit) { | ||
| publicKeyBuilder.apply(fill) | ||
| } | ||
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| internal inline fun buildInternalDataProvider( | ||
| fill: (@Builder InternalDataProvider.Builder).() -> Unit | ||
| ) = InternalDataProvider.newBuilder().apply(fill).build() | ||
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| internal inline fun InternalDataProvider.Builder.preferredCertificate( | ||
| fill: (@Builder InternalCertificate.Builder).() -> Unit | ||
| ) { | ||
| preferredCertificateBuilder.apply(fill) | ||
| } | ||
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| internal inline fun InternalDataProvider.Builder.details( | ||
| fill: (@Builder InternalDataProvider.Details.Builder).() -> Unit | ||
| ) { | ||
| detailsBuilder.apply(fill) | ||
| } | ||
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| internal inline fun buildInternalGetDataProviderRequest( | ||
| fill: (@Builder InternalGetDataProviderRequest.Builder).() -> Unit | ||
| ) = InternalGetDataProviderRequest.newBuilder().apply(fill).build() | ||
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| private fun InternalDataProvider.toDataProvider(): DataProvider { | ||
| check(Version.fromString(details.apiVersion) == API_VERSION) { | ||
| "Incompatible API version ${details.apiVersion}" | ||
| } | ||
| val internalDataProvider = this | ||
| val dataProviderId: String = externalIdToApiId(externalDataProviderId) | ||
| val certificateId: String = externalIdToApiId(preferredCertificate.externalCertificateId) | ||
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| return buildDataProvider { | ||
| name = DataProviderKey(dataProviderId).toName() | ||
| preferredCertificate = DataProviderCertificateKey(dataProviderId, certificateId).toName() | ||
| preferredCertificateDer = internalDataProvider.preferredCertificate.details.x509Der | ||
| publicKey { | ||
| data = internalDataProvider.details.publicKey | ||
| signature = internalDataProvider.details.publicKeySignature | ||
| } | ||
| } | ||
| } |
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