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mirror of https://gitee.com/mirrors/Spring-Cloud-Alibaba.git synced 2021-06-26 13:25:11 +08:00
2019-12-18 21:36:17 +08:00

106 lines
3.9 KiB
Java

/*
* Copyright (C) 2018 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
*
* 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 com.alibaba.cloud.sentinel;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import javax.annotation.PostConstruct;
import javax.servlet.Filter;
import com.alibaba.csp.sentinel.adapter.servlet.CommonFilter;
import com.alibaba.csp.sentinel.adapter.servlet.callback.RequestOriginParser;
import com.alibaba.csp.sentinel.adapter.servlet.callback.UrlBlockHandler;
import com.alibaba.csp.sentinel.adapter.servlet.callback.UrlCleaner;
import com.alibaba.csp.sentinel.adapter.servlet.callback.WebCallbackManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication.Type;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* @author xiaojing
*/
@Configuration
@ConditionalOnWebApplication(type = Type.SERVLET)
@ConditionalOnClass(CommonFilter.class)
@ConditionalOnProperty(name = "spring.cloud.sentinel.enabled", matchIfMissing = true)
@EnableConfigurationProperties(SentinelProperties.class)
public class SentinelWebAutoConfiguration {
private static final Logger log = LoggerFactory
.getLogger(SentinelWebAutoConfiguration.class);
@Autowired
private SentinelProperties properties;
@Autowired
private Optional<UrlCleaner> urlCleanerOptional;
@Autowired
private Optional<UrlBlockHandler> urlBlockHandlerOptional;
@Autowired
private Optional<RequestOriginParser> requestOriginParserOptional;
@PostConstruct
public void init() {
urlBlockHandlerOptional.ifPresent(WebCallbackManager::setUrlBlockHandler);
urlCleanerOptional.ifPresent(WebCallbackManager::setUrlCleaner);
requestOriginParserOptional.ifPresent(WebCallbackManager::setRequestOriginParser);
}
@Bean
@ConditionalOnProperty(name = "spring.cloud.sentinel.filter.enabled", matchIfMissing = true)
public FilterRegistrationBean sentinelFilter() {
FilterRegistrationBean<Filter> registration = new FilterRegistrationBean<>();
SentinelProperties.Filter filterConfig = properties.getFilter();
if (filterConfig.getUrlPatterns() == null
|| filterConfig.getUrlPatterns().isEmpty()) {
List<String> defaultPatterns = new ArrayList<>();
defaultPatterns.add("/*");
filterConfig.setUrlPatterns(defaultPatterns);
}
registration.addUrlPatterns(filterConfig.getUrlPatterns().toArray(new String[0]));
Filter filter = new CommonFilter();
registration.setFilter(filter);
registration.setOrder(filterConfig.getOrder());
registration.addInitParameter(CommonFilter.HTTP_METHOD_SPECIFY,
String.valueOf(properties.getHttpMethodSpecify()));
registration.addInitParameter(CommonFilter.WEB_CONTEXT_UNIFY,
String.valueOf(filterConfig.isWebContextUnify()));
log.info(
"[Sentinel Starter] register Sentinel CommonFilter with urlPatterns: {}.",
filterConfig.getUrlPatterns());
return registration;
}
}