package com.sandu.common.security;
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import cn.hutool.core.util.StrUtil;
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import com.sandu.common.security.config.SecurityProperties;
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import com.sandu.common.security.token.TokenProvider;
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import lombok.AllArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
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import org.springframework.security.core.Authentication;
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import org.springframework.security.core.context.SecurityContextHolder;
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import org.springframework.web.filter.OncePerRequestFilter;
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import javax.servlet.FilterChain;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.IOException;
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/**
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* spring security过滤器
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* 根据token拿到用户信息，放入spring security
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*
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* @author chenjiantian
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*/
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@Slf4j
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@AllArgsConstructor
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public class TokenFilter extends OncePerRequestFilter {
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private final TokenProvider tokenProvider;
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private final SecurityProperties properties;
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@Override
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protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
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String token = request.getHeader(properties.getHeader());
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if (token != null && token.startsWith(properties.getTokenStartWith())) {
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token = token.substring(properties.getTokenStartWith().length());
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}
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LoginUserInfo loginUserInfo = tokenProvider.validateToken(token);
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if (loginUserInfo != null) {
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if (StrUtil.equals(loginUserInfo.getToken(), token)) {
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Authentication authentication = new UsernamePasswordAuthenticationToken(
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loginUserInfo, null,
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loginUserInfo.getAuthorities());
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SecurityContextHolder.getContext().setAuthentication(authentication);
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}
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}
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filterChain.doFilter(request, response);
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}
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}
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