package com.ard.common.datascope.aspect;
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import java.util.ArrayList;
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import java.util.List;
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import org.aspectj.lang.JoinPoint;
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import org.aspectj.lang.annotation.Aspect;
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import org.aspectj.lang.annotation.Before;
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import org.springframework.stereotype.Component;
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import com.ard.common.core.constant.Constants;
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import com.ard.common.core.constant.UserConstants;
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import com.ard.common.core.context.SecurityContextHolder;
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import com.ard.common.core.text.Convert;
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import com.ard.common.core.utils.StringUtils;
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import com.ard.common.core.web.domain.BaseEntity;
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import com.ard.common.datascope.annotation.DataScope;
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import com.ard.common.security.utils.SecurityUtils;
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import com.ard.system.api.domain.SysRole;
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import com.ard.system.api.domain.SysUser;
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import com.ard.system.api.model.LoginUser;
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/**
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* 数据过滤处理
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*
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* @author ard
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*/
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@Aspect
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@Component
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public class DataScopeAspect
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{
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/**
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* 数据权限过滤关键字
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*/
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public static final String DATA_SCOPE = "dataScope";
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@Before("@annotation(controllerDataScope)")
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public void doBefore(JoinPoint point, DataScope controllerDataScope) throws Throwable
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{
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clearDataScope(point);
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handleDataScope(point, controllerDataScope);
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}
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protected void handleDataScope(final JoinPoint joinPoint, DataScope controllerDataScope)
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{
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// 获取当前的用户
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LoginUser loginUser = SecurityUtils.getLoginUser();
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if (StringUtils.isNotNull(loginUser))
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{
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SysUser currentUser = loginUser.getSysUser();
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// 如果是超级管理员，则不过滤数据
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if (StringUtils.isNotNull(currentUser) && !currentUser.isAdmin())
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{
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String permission = StringUtils.defaultIfEmpty(controllerDataScope.permission(), SecurityContextHolder.getPermission());
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dataScopeFilter(joinPoint, currentUser, controllerDataScope.userAlias(), controllerDataScope.deptAlias(), controllerDataScope.userField(), controllerDataScope.deptField(), permission);
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}
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}
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}
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/**
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* 数据范围过滤
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*
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* @param joinPoint 切点
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* @param user 用户
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* @param deptAlias 部门别名
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* @param userAlias 用户别名
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* @param permission 权限字符
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*/
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public static void dataScopeFilter(JoinPoint joinPoint, SysUser user, String userAlias, String deptAlias, String userField, String deptField, String permission)
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{
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StringBuilder sqlString = new StringBuilder();
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List<String> conditions = new ArrayList<String>();
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List<String> scopeCustomIds = new ArrayList<String>();
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user.getRoles().forEach(role -> {
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if (Constants.Dept.DATA_SCOPE_CUSTOM.equals(role.getDataScope()) && StringUtils.equals(role.getStatus(), UserConstants.ROLE_NORMAL) && (StringUtils.isEmpty(permission) || StringUtils.containsAny(role.getPermissions(), Convert.toStrArray(permission))))
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{
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scopeCustomIds.add(Convert.toStr(role.getRoleId()));
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}
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});
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for (SysRole role : user.getRoles())
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{
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String dataScope = role.getDataScope();
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if (conditions.contains(dataScope) || StringUtils.equals(role.getStatus(), UserConstants.ROLE_DISABLE))
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{
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continue;
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}
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if (StringUtils.isNotEmpty(permission) && !StringUtils.containsAny(role.getPermissions(), Convert.toStrArray(permission)))
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{
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continue;
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}
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if (Constants.Dept.DATA_SCOPE_ALL.equals(dataScope))
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{
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sqlString = new StringBuilder();
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conditions.add(dataScope);
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break;
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}
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else if (Constants.Dept.DATA_SCOPE_CUSTOM.equals(dataScope))
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{
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if (scopeCustomIds.size() > 1)
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{
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// 多个自定数据权限使用in查询，避免多次拼接。
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sqlString.append(StringUtils.format(" OR {}.{} IN ( SELECT dept_id FROM sys_role_dept WHERE role_id in ({}) ) ", deptAlias, deptField, String.join(",", scopeCustomIds)));
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}
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else
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{
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sqlString.append(StringUtils.format(" OR {}.{} IN ( SELECT dept_id FROM sys_role_dept WHERE role_id = {} ) ", deptAlias, deptField, role.getRoleId()));
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}
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}
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else if (Constants.Dept.DATA_SCOPE_DEPT.equals(dataScope))
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{
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sqlString.append(StringUtils.format(" OR {}.{} = {} ", deptAlias, deptField, user.getDeptId()));
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}
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else if (Constants.Dept.DATA_SCOPE_DEPT_AND_CHILD.equals(dataScope))
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{
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sqlString.append(StringUtils.format(" OR {}.{} IN ( SELECT dept_id FROM sys_dept WHERE dept_id = {} or find_in_set( {} , ancestors ) )", deptAlias, deptField, user.getDeptId(), user.getDeptId()));
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}
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else if (Constants.Dept.DATA_SCOPE_SELF.equals(dataScope))
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{
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if (StringUtils.isNotBlank(userAlias))
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{
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sqlString.append(StringUtils.format(" OR {}.{} = {} ", userAlias, userField, user.getUserId()));
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}
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else
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{
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// 数据权限为仅本人且没有userAlias别名不查询任何数据
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sqlString.append(StringUtils.format(" OR {}.{} = 0 ", deptAlias, deptField));
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}
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}
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conditions.add(dataScope);
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}
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// 角色都不包含传递过来的权限字符，这个时候sqlString也会为空，所以要限制一下,不查询任何数据
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if (StringUtils.isEmpty(conditions))
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{
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sqlString.append(StringUtils.format(" OR {}.{} = 0 ", deptAlias, deptField));
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}
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if (StringUtils.isNotBlank(sqlString.toString()))
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{
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Object params = joinPoint.getArgs()[0];
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if (StringUtils.isNotNull(params) && params instanceof BaseEntity)
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{
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BaseEntity baseEntity = (BaseEntity) params;
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baseEntity.getParams().put(DATA_SCOPE, " AND (" + sqlString.substring(4) + ")");
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}
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}
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}
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/**
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* 拼接权限sql前先清空params.dataScope参数防止注入
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*/
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private void clearDataScope(final JoinPoint joinPoint)
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{
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Object params = joinPoint.getArgs()[0];
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if (StringUtils.isNotNull(params) && params instanceof BaseEntity)
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{
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BaseEntity baseEntity = (BaseEntity) params;
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baseEntity.getParams().put(DATA_SCOPE, "");
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}
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}
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}
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