package com.ruoyi.common.security.aspect;
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import java.lang.reflect.Method;
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import java.util.Collection;
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import org.aspectj.lang.ProceedingJoinPoint;
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import org.aspectj.lang.Signature;
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import org.aspectj.lang.annotation.Around;
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import org.aspectj.lang.annotation.Aspect;
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import org.aspectj.lang.reflect.MethodSignature;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Component;
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import org.springframework.util.CollectionUtils;
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import org.springframework.util.PatternMatchUtils;
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import org.springframework.util.StringUtils;
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import com.ruoyi.common.core.exception.PreAuthorizeException;
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import com.ruoyi.common.security.annotation.PreAuthorize;
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import com.ruoyi.common.security.service.TokenService;
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import com.ruoyi.system.api.model.LoginUser;
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/**
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* 自定义权限实现
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*
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* @author ruoyi
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*/
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@Aspect
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@Component
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public class PreAuthorizeAspect
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{
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@Autowired
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private TokenService tokenService;
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/** 所有权限标识 */
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private static final String ALL_PERMISSION = "*:*:*";
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/** 管理员角色权限标识 */
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private static final String SUPER_ADMIN = "admin";
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/** 数组为0时 */
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private static final Integer ARRAY_EMPTY = 0;
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@Around("@annotation(com.ruoyi.common.security.annotation.PreAuthorize)")
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public Object around(ProceedingJoinPoint point) throws Throwable
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{
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Signature signature = point.getSignature();
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MethodSignature methodSignature = (MethodSignature) signature;
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Method method = methodSignature.getMethod();
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PreAuthorize annotation = method.getAnnotation(PreAuthorize.class);
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if (annotation == null)
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{
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return point.proceed();
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}
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if (!StringUtils.isEmpty(annotation.hasPermi()))
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{
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if (hasPermi(annotation.hasPermi()))
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{
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return point.proceed();
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}
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throw new PreAuthorizeException();
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}
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else if (!StringUtils.isEmpty(annotation.lacksPermi()))
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{
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if (lacksPermi(annotation.lacksPermi()))
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{
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return point.proceed();
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}
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throw new PreAuthorizeException();
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}
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else if (ARRAY_EMPTY < annotation.hasAnyPermi().length)
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{
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if (hasAnyPermi(annotation.hasAnyPermi()))
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{
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return point.proceed();
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}
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throw new PreAuthorizeException();
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}
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else if (!StringUtils.isEmpty(annotation.hasRole()))
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{
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if (hasRole(annotation.hasRole()))
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{
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return point.proceed();
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}
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throw new PreAuthorizeException();
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}
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else if (!StringUtils.isEmpty(annotation.lacksRole()))
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{
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if (lacksRole(annotation.lacksRole()))
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{
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return point.proceed();
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}
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throw new PreAuthorizeException();
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}
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else if (ARRAY_EMPTY < annotation.hasAnyRoles().length)
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{
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if (hasAnyRoles(annotation.hasAnyRoles()))
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{
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return point.proceed();
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}
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throw new PreAuthorizeException();
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}
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return point.proceed();
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}
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/**
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* 验证用户是否具备某权限
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*
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* @param permission 权限字符串
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* @return 用户是否具备某权限
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*/
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public boolean hasPermi(String permission)
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{
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LoginUser userInfo = tokenService.getLoginUser();
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if (StringUtils.isEmpty(userInfo) || CollectionUtils.isEmpty(userInfo.getPermissions()))
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{
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return false;
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}
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return hasPermissions(userInfo.getPermissions(), permission);
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}
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/**
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* 验证用户是否不具备某权限，与 hasPermi逻辑相反
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*
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* @param permission 权限字符串
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* @return 用户是否不具备某权限
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*/
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public boolean lacksPermi(String permission)
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{
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return hasPermi(permission) != true;
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}
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/**
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* 验证用户是否具有以下任意一个权限
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*
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* @param permissions 权限列表
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* @return 用户是否具有以下任意一个权限
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*/
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public boolean hasAnyPermi(String[] permissions)
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{
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LoginUser userInfo = tokenService.getLoginUser();
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if (StringUtils.isEmpty(userInfo) || CollectionUtils.isEmpty(userInfo.getPermissions()))
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{
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return false;
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}
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Collection<String> authorities = userInfo.getPermissions();
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for (String permission : permissions)
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{
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if (permission != null && hasPermissions(authorities, permission))
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{
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return true;
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}
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}
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return false;
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}
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/**
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* 判断用户是否拥有某个角色
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*
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* @param role 角色字符串
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* @return 用户是否具备某角色
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*/
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public boolean hasRole(String role)
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{
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LoginUser userInfo = tokenService.getLoginUser();
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if (StringUtils.isEmpty(userInfo) || CollectionUtils.isEmpty(userInfo.getRoles()))
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{
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return false;
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}
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for (String roleKey : userInfo.getRoles())
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{
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if (SUPER_ADMIN.equals(roleKey) || roleKey.equals(role))
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{
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return true;
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}
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}
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return false;
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}
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/**
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* 验证用户是否不具备某角色，与 isRole逻辑相反。
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*
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* @param role 角色名称
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* @return 用户是否不具备某角色
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*/
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public boolean lacksRole(String role)
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{
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return hasRole(role) != true;
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}
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/**
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* 验证用户是否具有以下任意一个角色
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*
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* @param roles 角色列表
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* @return 用户是否具有以下任意一个角色
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*/
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public boolean hasAnyRoles(String[] roles)
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{
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LoginUser userInfo = tokenService.getLoginUser();
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if (StringUtils.isEmpty(userInfo) || CollectionUtils.isEmpty(userInfo.getRoles()))
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{
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return false;
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}
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for (String role : roles)
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{
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if (hasRole(role))
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{
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return true;
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}
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}
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return false;
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}
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/**
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* 判断是否包含权限
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*
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* @param authorities 权限列表
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* @param permission 权限字符串
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* @return 用户是否具备某权限
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*/
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private boolean hasPermissions(Collection<String> authorities, String permission)
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{
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return authorities.stream().filter(StringUtils::hasText)
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.anyMatch(x -> ALL_PERMISSION.contains(x) || PatternMatchUtils.simpleMatch(permission, x));
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}
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}
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