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| package com.luoyx.vjsb.authority.shiro.filter;
import cn.hutool.core.util.StrUtil; import cn.hutool.json.JSONUtil; import com.alibaba.fastjson.JSON; import com.luoyx.vjsb.authority.token.Oauth2Token; import com.luoyx.vjsb.authority.util.JsonWebTokenUtil; import com.luoyx.vjsb.authority.vo.JwtAccount; import com.luoyx.vjsb.common.properties.VjsbProperties; import com.luoyx.vjsb.common.util.AjaxResult; import com.luoyx.vjsb.common.util.IpUtil; import io.jsonwebtoken.SignatureAlgorithm; import lombok.Setter; import lombok.extern.slf4j.Slf4j; import org.apache.shiro.authc.AuthenticationException; import org.apache.shiro.authc.AuthenticationToken; import org.apache.shiro.web.filter.authc.AuthenticatingFilter; import org.apache.shiro.web.util.WebUtils; import org.springframework.data.redis.core.StringRedisTemplate; import org.springframework.http.HttpStatus; import org.springframework.web.bind.annotation.RequestMethod;
import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.io.PrintWriter; import java.util.UUID; import java.util.concurrent.TimeUnit;
@Slf4j @Setter public class Oauth2Filter extends AuthenticatingFilter {
private final String expiredJwt = "expiredJwt";
private StringRedisTemplate redisTemplate;
private VjsbProperties properties;
@Override protected boolean preHandle(ServletRequest request, ServletResponse response) throws Exception { HttpServletRequest httpServletRequest = (HttpServletRequest) request; HttpServletResponse httpServletResponse = (HttpServletResponse) response; httpServletResponse.setHeader("Access-control-Allow-Origin", httpServletRequest.getHeader("Origin")); httpServletResponse.setHeader("Access-Control-Allow-Methods", "GET,POST,OPTIONS,PUT,DELETE"); httpServletResponse.setHeader("Access-Control-Allow-Headers", httpServletRequest.getHeader("Access-Control-Request-Headers")); if (httpServletRequest.getMethod().equals(RequestMethod.OPTIONS.name())) { httpServletResponse.setStatus(HttpStatus.OK.value()); return false; } return super.preHandle(request, response); }
@Override protected boolean isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) { return ((HttpServletRequest) request).getMethod().equals(RequestMethod.OPTIONS.name()); }
@Override protected boolean onAccessDenied(ServletRequest request, ServletResponse response) throws Exception { String token = getRequestToken((HttpServletRequest) request); if (StrUtil.isBlank(token)) { AjaxResult.responseWrite(JSON.toJSONString(AjaxResult.success("无权限访问", 1007, null)), response); return false; } return executeLogin(request, response); }
@Override protected AuthenticationToken createToken(ServletRequest request, ServletResponse response) throws Exception { return new Oauth2Token(getRequestToken(WebUtils.toHttp(request))); }
private String getRequestToken(HttpServletRequest httpRequest) { String token = httpRequest.getHeader("Authorization");
if (StrUtil.isBlank(token)) { token = httpRequest.getParameter("Authorization"); }
return token; }
@Override protected boolean onLoginFailure(AuthenticationToken token, AuthenticationException e, ServletRequest request, ServletResponse response) { Throwable throwable = e.getCause() == null ? e : e.getCause(); PrintWriter writer = null; try { writer = WebUtils.toHttp(response).getWriter(); } catch (IOException ignored) { } assert writer !=null; String message = e.getMessage(); if (expiredJwt.equals(message)) { String jwt = JsonWebTokenUtil.parseJwtPayload(token.getCredentials().toString()); JwtAccount jwtAccount = JSONUtil.toBean(jwt, JwtAccount.class); String s = redisTemplate.opsForValue().get("JWT-SESSION-" + IpUtil.getIpFromRequest((HttpServletRequest) request).toUpperCase() + jwtAccount.getSub()); if (s != null) { String newJwt = JsonWebTokenUtil.createToken(UUID.randomUUID().toString(), jwtAccount.getSub(), "token-server", jwtAccount.getPassword(), properties.getExpire(), SignatureAlgorithm.HS512); redisTemplate.opsForValue().set("JWT-SESSION-" + IpUtil.getIpFromRequest((HttpServletRequest) request) + "_" + jwtAccount.getSub(), newJwt, properties.getExpire() << 1, TimeUnit.SECONDS); writer.print(JSON.toJSONString(AjaxResult.success("刷新令牌", 1006, newJwt))); } else { writer.print(JSON.toJSONString(AjaxResult.success("令牌无效!", 1008, null))); } writer.flush(); return false; } writer.print(JSON.toJSONString(AjaxResult.success(message, 1008, null))); writer.flush(); return false; }
}
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