package cn.stylefeng.guns.sys.core.auth.entrypoint;
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import cn.stylefeng.guns.base.auth.exception.enums.AuthExceptionEnum;
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import cn.stylefeng.roses.kernel.model.response.ErrorResponseData;
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import com.alibaba.fastjson.JSON;
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import org.springframework.security.core.AuthenticationException;
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import org.springframework.security.web.AuthenticationEntryPoint;
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import org.springframework.stereotype.Component;
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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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import java.io.Serializable;
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/**
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* 这个端点用在用户访问受保护资源但是不提供任何token的情况下
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* <p>
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* 当前用户没有登录（没有token），访问了系统中的一些需要权限的接口，就会进入这个处理器
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*
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* @author fengshuonan
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* @Date 2019/7/20 17:57
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*/
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@Component
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public class JwtAuthenticationEntryPoint implements AuthenticationEntryPoint, Serializable {
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private static final long serialVersionUID = -1L;
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@Override
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public void commence(HttpServletRequest request,
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HttpServletResponse response,
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AuthenticationException authException) throws IOException {
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// GET请求跳转到主页
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if ("get".equalsIgnoreCase(request.getMethod())
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&& !request.getHeader("Accept").contains("application/json")) {
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response.sendRedirect(request.getContextPath() + "/global/sessionError");
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} else {
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// POST请求返回json
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response.setCharacterEncoding("utf-8");
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response.setContentType("application/json");
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ErrorResponseData errorResponseData = new ErrorResponseData(
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AuthExceptionEnum.NO_PAGE_ERROR.getCode(), AuthExceptionEnum.NO_PAGE_ERROR.getMessage());
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response.getWriter().write(JSON.toJSONString(errorResponseData));
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}
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}
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}
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