package com.rongyichuang.auth.filter;
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import com.rongyichuang.auth.util.JwtUtil;
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import com.rongyichuang.user.entity.User;
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import com.rongyichuang.user.repository.UserRepository;
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import jakarta.servlet.FilterChain;
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import jakarta.servlet.ServletException;
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import jakarta.servlet.http.HttpServletRequest;
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import jakarta.servlet.http.HttpServletResponse;
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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.security.authentication.UsernamePasswordAuthenticationToken;
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import org.springframework.security.core.context.SecurityContextHolder;
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import org.springframework.security.core.Authentication;
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import org.springframework.security.core.userdetails.UserDetails;
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import org.springframework.security.core.userdetails.UserDetailsService;
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import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
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import org.springframework.stereotype.Component;
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import org.springframework.web.filter.OncePerRequestFilter;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Optional;
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/**
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* JWT认证过滤器
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*/
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@Component
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public class JwtAuthenticationFilter extends OncePerRequestFilter {
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private static final Logger logger = LoggerFactory.getLogger(JwtAuthenticationFilter.class);
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@Autowired
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private JwtUtil jwtUtil;
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@Autowired
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private UserRepository userRepository;
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@Override
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protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response,
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FilterChain filterChain) throws ServletException, IOException {
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System.out.println("=== JWT过滤器被调用 === URI: " + request.getRequestURI());
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logger.debug("JWT过滤器开始处理请求: {}", request.getRequestURI());
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String authHeader = request.getHeader("Authorization");
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String token = null;
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Long userId = null;
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logger.debug("Authorization头: {}", authHeader);
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// 从请求头中提取JWT token
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if (authHeader != null && authHeader.startsWith("Bearer ")) {
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token = authHeader.substring(7);
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logger.debug("提取到JWT token: {}", token.substring(0, Math.min(20, token.length())) + "...");
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try {
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userId = jwtUtil.getUserIdFromToken(token);
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logger.debug("从token中解析到用户ID: {}", userId);
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} catch (Exception e) {
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logger.error("JWT token解析失败: {}", e.getMessage(), e);
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}
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} else {
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logger.debug("没有找到Authorization头或格式不正确");
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}
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// 如果token有效且当前是匿名或无认证，则进行认证
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Authentication existingAuth = SecurityContextHolder.getContext().getAuthentication();
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boolean isAnonymous = (existingAuth == null) || ("anonymousUser".equals(String.valueOf(existingAuth.getPrincipal())));
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if (userId != null && isAnonymous) {
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logger.debug("开始验证token有效性");
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// 验证token是否有效
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if (jwtUtil.validateToken(token)) {
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logger.debug("Token验证成功，查找用户信息");
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// 查找用户信息
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Optional<User> userOpt = userRepository.findById(userId);
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if (userOpt.isPresent()) {
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User user = userOpt.get();
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logger.debug("找到用户: userId={}, phone={}", user.getId(), user.getPhone());
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// 创建认证对象
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UsernamePasswordAuthenticationToken authToken =
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new UsernamePasswordAuthenticationToken(
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user.getId().toString(),
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null,
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new ArrayList<>() // 暂时不设置权限，后续可以根据角色设置
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);
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authToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
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SecurityContextHolder.getContext().setAuthentication(authToken);
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logger.info("用户认证成功: userId={}, phone={}", user.getId(), user.getPhone());
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} else {
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logger.warn("用户不存在: userId={}", userId);
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}
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} else {
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logger.warn("Token验证失败");
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}
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} else if (userId == null) {
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logger.debug("没有解析到用户ID");
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} else {
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logger.debug("已存在非匿名认证信息，跳过JWT认证");
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}
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filterChain.doFilter(request, response);
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}
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}
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