/*
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* Copyright 1999-2018 Alibaba Group Holding Ltd.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.alibaba.csp.sentinel.dashboard.config;
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import java.util.Arrays;
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import java.util.HashSet;
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import java.util.Set;
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import com.alibaba.csp.sentinel.adapter.servlet.CommonFilter;
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import com.alibaba.csp.sentinel.adapter.servlet.callback.WebCallbackManager;
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import com.alibaba.csp.sentinel.dashboard.auth.AuthorizationInterceptor;
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import com.alibaba.csp.sentinel.dashboard.auth.LoginAuthenticationFilter;
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import com.alibaba.csp.sentinel.util.StringUtil;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.web.servlet.FilterRegistrationBean;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
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import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
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import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
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import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
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import javax.annotation.PostConstruct;
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import javax.servlet.Filter;
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/**
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* @author leyou
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*/
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@Configuration
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public class WebConfig implements WebMvcConfigurer {
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private final Logger logger = LoggerFactory.getLogger(WebConfig.class);
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@Autowired
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private LoginAuthenticationFilter loginAuthenticationFilter;
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@Autowired
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private AuthorizationInterceptor authorizationInterceptor;
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@Override
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public void addInterceptors(InterceptorRegistry registry) {
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registry.addInterceptor(authorizationInterceptor).addPathPatterns("/**");
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}
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@Override
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public void addResourceHandlers(ResourceHandlerRegistry registry) {
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registry.addResourceHandler("/**").addResourceLocations("classpath:/resources/");
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}
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@Override
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public void addViewControllers(ViewControllerRegistry registry) {
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registry.addViewController("/").setViewName("forward:/index.htm");
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}
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/**
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* Add {@link CommonFilter} to the server, this is the simplest way to use Sentinel
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* for Web application.
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*/
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@Bean
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public FilterRegistrationBean sentinelFilterRegistration() {
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FilterRegistrationBean<Filter> registration = new FilterRegistrationBean<>();
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registration.setFilter(new CommonFilter());
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registration.addUrlPatterns("/*");
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registration.setName("sentinelFilter");
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registration.setOrder(1);
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// If this is enabled, the entrance of all Web URL resources will be unified as a single context name.
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// In most scenarios that's enough, and it could reduce the memory footprint.
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registration.addInitParameter(CommonFilter.WEB_CONTEXT_UNIFY, "true");
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logger.info("Sentinel servlet CommonFilter registered");
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return registration;
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}
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@PostConstruct
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public void doInit() {
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Set<String> suffixSet = new HashSet<>(Arrays.asList(".js", ".css", ".html", ".ico", ".txt",
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".woff", ".woff2"));
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// Example: register a UrlCleaner to exclude URLs of common static resources.
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WebCallbackManager.setUrlCleaner(url -> {
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if (StringUtil.isEmpty(url)) {
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return url;
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}
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if (suffixSet.stream().anyMatch(url::endsWith)) {
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return null;
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}
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return url;
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});
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}
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@Bean
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public FilterRegistrationBean authenticationFilterRegistration() {
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FilterRegistrationBean<Filter> registration = new FilterRegistrationBean<>();
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registration.setFilter(loginAuthenticationFilter);
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registration.addUrlPatterns("/*");
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registration.setName("authenticationFilter");
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registration.setOrder(0);
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return registration;
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}
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}
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