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/*
*
* Copyright (c) 2022. Deutsche Telekom AG
*
* 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.
*
* SPDX-License-Identifier: Apache-2.0
*
*
*/
package org.onap.portalng.bff.config.clients;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.List;
import java.util.function.Function;
import org.onap.portalng.bff.config.BeansConfig;
import org.onap.portalng.bff.config.BffConfig;
import org.onap.portalng.bff.exceptions.DownstreamApiProblemException;
import org.onap.portalng.bff.openapi.client_keycloak.ApiClient;
import org.onap.portalng.bff.openapi.client_keycloak.api.KeycloakApi;
import org.onap.portalng.bff.openapi.client_keycloak.model.ErrorResponseKeycloakDto;
import org.onap.portalng.bff.openapi.server.model.ProblemApiDto;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpStatusCode;
import org.springframework.http.client.reactive.ClientHttpConnector;
import org.springframework.web.reactive.function.client.ExchangeFilterFunction;
import org.springframework.web.reactive.function.client.WebClient;
@Configuration
public class KeycloakConfig extends AbstractClientConfig<ErrorResponseKeycloakDto> {
private final ObjectMapper objectMapper;
private final BffConfig bffConfig;
private final ExchangeFilterFunction oauth2ExchangeFilterFunction;
public KeycloakConfig(
@Qualifier(BeansConfig.OAUTH2_EXCHANGE_FILTER_FUNCTION)
ExchangeFilterFunction oauth2ExchangeFilterFunction,
ObjectMapper objectMapper,
BffConfig bffConfig) {
super(ErrorResponseKeycloakDto.class);
this.objectMapper = objectMapper;
this.bffConfig = bffConfig;
this.oauth2ExchangeFilterFunction = oauth2ExchangeFilterFunction;
}
@Bean
public KeycloakApi keycloakApi(WebClient.Builder webClientBuilder) {
return constructApiClient(webClientBuilder, KeycloakApi::new);
}
private <T> T constructApiClient(
WebClient.Builder webClientBuilder, Function<ApiClient, T> apiConstructor) {
final ApiClient apiClient =
new ApiClient(
getWebClient(webClientBuilder, List.of(oauth2ExchangeFilterFunction)),
objectMapper,
objectMapper.getDateFormat());
// Extract service name and version from BasePath
String urlBasePathPrefix =
String.format("%s/auth/admin/realms/%s", bffConfig.getKeycloakUrl(), bffConfig.getRealm());
return apiConstructor.apply(apiClient.setBasePath(urlBasePathPrefix));
}
@Override
protected DownstreamApiProblemException mapException(
ErrorResponseKeycloakDto errorResponse, HttpStatusCode httpStatusCode) {
String errorDetail =
errorResponse.getErrorMessage() != null
? errorResponse.getErrorMessage()
: errorResponse.getError();
return DownstreamApiProblemException.builder()
.title(httpStatusCode.toString())
.detail(errorDetail)
.downstreamSystem(ProblemApiDto.DownstreamSystemEnum.KEYCLOAK.toString())
.downstreamMessageId("not set by downstream system")
.downstreamStatus(httpStatusCode.value())
.build();
}
@Override
protected ClientHttpConnector getClientHttpConnector() {
return null;
}
}
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