/*
* Copyright 2002-2016 the original author or 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
*
* https://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.springframework.security.web.server.access.expression;
import org.springframework.expression.EvaluationContext;
import org.springframework.expression.Expression;
import org.springframework.security.access.ConfigAttribute;
import org.springframework.security.access.ReactiveAccessDecisionManager;
import org.springframework.security.access.expression.ExpressionUtils;
import org.springframework.security.access.expression.SecurityExpressionHandler;
import org.springframework.security.core.Authentication;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
public class ExpressionReactiveAccessDecisionManager implements ReactiveAccessDecisionManager<ServerWebExchange> {
SecurityExpressionHandler<ServerWebExchange> handler = new DefaultServerWebExchangeExpressionHandler();
@Override
public Mono<Boolean> decide(Authentication authentication, ServerWebExchange object, Flux<ConfigAttribute> configAttributes) {
ConfigAttribute attribute = configAttributes.blockFirst();
EvaluationContext context = handler.createEvaluationContext(authentication, object);
Expression expression = handler.getExpressionParser().parseExpression(attribute.getAttribute());
return Mono.just(ExpressionUtils.evaluateAsBoolean(expression, context));
}
}
