package com.iailab.framework.security.core.handler;
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import com.iailab.framework.common.exception.enums.GlobalErrorCodeConstants;
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import com.iailab.framework.common.pojo.CommonResult;
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import com.iailab.framework.security.core.util.SecurityFrameworkUtils;
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import com.iailab.framework.common.util.servlet.ServletUtils;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.security.access.AccessDeniedException;
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import org.springframework.security.web.access.AccessDeniedHandler;
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import org.springframework.security.web.access.ExceptionTranslationFilter;
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import org.springframework.stereotype.Component;
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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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import static com.iailab.framework.common.exception.enums.GlobalErrorCodeConstants.FORBIDDEN;
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import static com.iailab.framework.common.exception.enums.GlobalErrorCodeConstants.UNAUTHORIZED;
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/**
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* 访问一个需要认证的 URL 资源，已经认证（登录）但是没有权限的情况下，返回 {@link GlobalErrorCodeConstants#FORBIDDEN} 错误码。
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*
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* 补充：Spring Security 通过 {@link ExceptionTranslationFilter#handleAccessDeniedException(HttpServletRequest, HttpServletResponse, FilterChain, AccessDeniedException)} 方法，调用当前类
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*
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* @author iailab
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*/
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@Slf4j
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@SuppressWarnings("JavadocReference")
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public class AccessDeniedHandlerImpl implements AccessDeniedHandler {
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@Override
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public void handle(HttpServletRequest request, HttpServletResponse response, AccessDeniedException e)
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throws IOException, ServletException {
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// 打印 warn 的原因是，不定期合并 warn，看看有没恶意破坏
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log.warn("[commence][访问 URL({}) 时，用户({}) 权限不够]", request.getRequestURI(),
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SecurityFrameworkUtils.getLoginUserId(), e);
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// 返回 403
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ServletUtils.writeJSON(response, CommonResult.error(FORBIDDEN));
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}
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}
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