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package cn.flood.cloud.gateway.service.impl;

import cn.flood.Func;
import cn.flood.cloud.gateway.service.SafeRuleService;

import cn.flood.cloud.rule.constant.RuleConstant;
import cn.flood.cloud.rule.entity.BlackList;
import cn.flood.cloud.rule.service.RuleCacheService;
import cn.flood.date.DateTimeUtils;
import cn.flood.http.IPUtils;
import com.google.common.base.Stopwatch;
import lombok.RequiredArgsConstructor;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Service;
import org.springframework.util.AntPathMatcher;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

import java.net.URI;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;

/**
 * 安全规则业务实现类
 *
 * @author mmdai
 */
@Service
@RequiredArgsConstructor
public class SafeRuleServiceImpl implements SafeRuleService {

	private final Logger log = LoggerFactory.getLogger(this.getClass());

	private final AntPathMatcher antPathMatcher = new AntPathMatcher();

	@Autowired
	private RuleCacheService ruleCacheService;

	@Override
	public Mono filterBlackList(ServerWebExchange exchange) {
		Stopwatch stopwatch = Stopwatch.createStarted();
		ServerHttpRequest request = exchange.getRequest();
		ServerHttpResponse response = exchange.getResponse();
		try {
			URI originUri = getOriginRequestUri(exchange);
			String requestIp = IPUtils.getServerHttpRequestIpAddress(request);
			String requestMethod = request.getMethodValue();
			AtomicBoolean forbid = new AtomicBoolean(false);
			// 从缓存中获取黑名单信息
			Set