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/*
* 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.rocketmq.eventbridge.filter;
import lombok.extern.slf4j.Slf4j;
import org.apache.rocketmq.eventbridge.infrastructure.validate.AuthValidation;
import org.apache.rocketmq.eventbridge.infrastructure.validate.spi.ValidationServiceFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.annotation.Order;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.server.WebFilter;
import org.springframework.web.server.WebFilterChain;
import reactor.core.publisher.Mono;
import reactor.util.context.Context;
import javax.annotation.PostConstruct;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.atomic.AtomicReference;
import java.util.stream.Collectors;
@Component
@Order(value = 3)
@Slf4j
public class ValidateFilter implements WebFilter {
private List<AuthValidation> validations = new CopyOnWriteArrayList<>();
@Value(value = "${auth.validation:default}")
private String validationName;
@PostConstruct
public void init() {
List<String> validationNames = Arrays.stream(validationName.split(",")).collect(Collectors.toList());
boolean match = Arrays.stream(validationName.split(",")).allMatch(validationName -> validationName.equals("default"));
if (!match) {
validationNames.add(0, "default");
}
validationNames.forEach(action -> validations.add(ValidationServiceFactory.getInstance(action)));
}
@Override
public Mono<Void> filter(ServerWebExchange exchange, WebFilterChain chain) {
ServerHttpRequest request = exchange.getRequest();
return chain.filter(exchange)
.subscriberContext(ctx -> {
AtomicReference<Context> result = new AtomicReference<Context>();
validations.forEach(validation -> result.set(validation.validate(request, ctx)));
return result.get();
});
}
}