| | |
| | | |
| | | import cn.hutool.core.annotation.AnnotationUtil; |
| | | import cn.hutool.core.collection.CollUtil; |
| | | import cn.hutool.core.util.ClassUtil; |
| | | import cn.hutool.core.util.ObjectUtil; |
| | | import lombok.extern.slf4j.Slf4j; |
| | | import net.sf.jsqlparser.JSQLParserException; |
| | |
| | | import net.sf.jsqlparser.expression.Parenthesis; |
| | | import net.sf.jsqlparser.expression.operators.conditional.AndExpression; |
| | | import net.sf.jsqlparser.parser.CCJSqlParserUtil; |
| | | import org.apache.ibatis.io.Resources; |
| | | import org.dromara.common.core.domain.dto.RoleDTO; |
| | | import org.dromara.common.core.domain.model.LoginUser; |
| | | import org.dromara.common.core.exception.ServiceException; |
| | |
| | | import org.dromara.common.mybatis.enums.DataScopeType; |
| | | import org.dromara.common.mybatis.helper.DataPermissionHelper; |
| | | import org.dromara.common.satoken.utils.LoginHelper; |
| | | import org.springframework.context.ConfigurableApplicationContext; |
| | | import org.springframework.context.expression.BeanFactoryResolver; |
| | | import org.springframework.core.io.Resource; |
| | | import org.springframework.core.io.support.PathMatchingResourcePatternResolver; |
| | | import org.springframework.core.io.support.ResourcePatternResolver; |
| | | import org.springframework.core.type.ClassMetadata; |
| | | import org.springframework.core.type.classreading.CachingMetadataReaderFactory; |
| | | import org.springframework.expression.BeanResolver; |
| | | import org.springframework.expression.ExpressionParser; |
| | | import org.springframework.expression.ParserContext; |
| | | import org.springframework.expression.common.TemplateParserContext; |
| | | import org.springframework.expression.spel.standard.SpelExpressionParser; |
| | | import org.springframework.expression.spel.support.StandardEvaluationContext; |
| | | import org.springframework.util.ClassUtils; |
| | | |
| | | import java.lang.reflect.Method; |
| | | import java.util.*; |
| | | import java.util.Arrays; |
| | | import java.util.HashSet; |
| | | import java.util.Map; |
| | | import java.util.Set; |
| | | import java.util.concurrent.ConcurrentHashMap; |
| | | import java.util.function.Function; |
| | | |
| | |
| | | */ |
| | | private final BeanResolver beanResolver = new BeanFactoryResolver(SpringUtils.getBeanFactory()); |
| | | |
| | | /** |
| | | * 构造方法,扫描指定包下的 Mapper 类并初始化缓存 |
| | | * |
| | | * @param mapperPackage Mapper 类所在的包路径 |
| | | */ |
| | | public PlusDataPermissionHandler(String mapperPackage) { |
| | | scanMapperClasses(mapperPackage); |
| | | } |
| | | |
| | | /** |
| | | * 获取数据过滤条件的 SQL 片段 |
| | | * |
| | | * @param where 原始的查询条件表达式 |
| | | * @param mappedStatementId Mapper 方法的 ID |
| | | * @param isSelect 是否为查询语句 |
| | | * @return 数据过滤条件的 SQL 片段 |
| | | */ |
| | | public Expression getSqlSegment(Expression where, String mappedStatementId, boolean isSelect) { |
| | | DataColumn[] dataColumns = findAnnotation(mappedStatementId); |
| | | // 获取数据权限配置 |
| | | DataPermission dataPermission = getDataPermission(mappedStatementId); |
| | | // 获取当前登录用户信息 |
| | | LoginUser currentUser = DataPermissionHelper.getVariable("user"); |
| | | if (ObjectUtil.isNull(currentUser)) { |
| | | currentUser = LoginHelper.getLoginUser(); |
| | |
| | | if (LoginHelper.isSuperAdmin() || LoginHelper.isTenantAdmin()) { |
| | | return where; |
| | | } |
| | | String dataFilterSql = buildDataFilter(dataColumns, isSelect); |
| | | // 构造数据过滤条件的 SQL 片段 |
| | | String dataFilterSql = buildDataFilter(dataPermission, isSelect); |
| | | if (StringUtils.isBlank(dataFilterSql)) { |
| | | return where; |
| | | } |
| | |
| | | } |
| | | |
| | | /** |
| | | * 构造数据过滤sql |
| | | * 构建数据过滤条件的 SQL 语句 |
| | | * |
| | | * @param dataPermission 数据权限注解 |
| | | * @param isSelect 标志当前操作是否为查询操作,查询操作和更新或删除操作在处理过滤条件时会有不同的处理方式 |
| | | * @return 构建的数据过滤条件的 SQL 语句 |
| | | * @throws ServiceException 如果角色的数据范围异常或者 key 与 value 的长度不匹配,则抛出 ServiceException 异常 |
| | | */ |
| | | private String buildDataFilter(DataColumn[] dataColumns, boolean isSelect) { |
| | | private String buildDataFilter(DataPermission dataPermission, boolean isSelect) { |
| | | // 更新或删除需满足所有条件 |
| | | String joinStr = isSelect ? " OR " : " AND "; |
| | | if (StringUtils.isNotBlank(dataPermission.joinStr())) { |
| | | joinStr = " " + dataPermission.joinStr() + " "; |
| | | } |
| | | LoginUser user = DataPermissionHelper.getVariable("user"); |
| | | StandardEvaluationContext context = new StandardEvaluationContext(); |
| | | context.setBeanResolver(beanResolver); |
| | |
| | | return ""; |
| | | } |
| | | boolean isSuccess = false; |
| | | for (DataColumn dataColumn : dataColumns) { |
| | | for (DataColumn dataColumn : dataPermission.value()) { |
| | | if (dataColumn.key().length != dataColumn.value().length) { |
| | | throw new ServiceException("角色数据范围异常 => key与value长度不匹配"); |
| | | } |
| | |
| | | if (!StringUtils.containsAny(type.getSqlTemplate(), |
| | | Arrays.stream(dataColumn.key()).map(key -> "#" + key).toArray(String[]::new) |
| | | )) { |
| | | continue; |
| | | } |
| | | // 包含权限标识符 这直接跳过 |
| | | if (StringUtils.isNotBlank(dataColumn.permission()) && |
| | | CollUtil.contains(user.getMenuPermission(), dataColumn.permission()) |
| | | ) { |
| | | isSuccess = true; |
| | | continue; |
| | | } |
| | | // 设置注解变量 key 为表达式变量 value 为变量值 |
| | |
| | | return ""; |
| | | } |
| | | |
| | | public DataColumn[] findAnnotation(String mappedStatementId) { |
| | | StringBuilder sb = new StringBuilder(mappedStatementId); |
| | | int index = sb.lastIndexOf("."); |
| | | String clazzName = sb.substring(0, index); |
| | | String methodName = sb.substring(index + 1, sb.length()); |
| | | Class<?> clazz = ClassUtil.loadClass(clazzName); |
| | | List<Method> methods = Arrays.stream(ClassUtil.getDeclaredMethods(clazz)) |
| | | .filter(method -> method.getName().equals(methodName)).toList(); |
| | | DataPermission dataPermission; |
| | | // 获取方法注解 |
| | | for (Method method : methods) { |
| | | dataPermission = dataPermissionCacheMap.get(mappedStatementId); |
| | | if (ObjectUtil.isNotNull(dataPermission)) { |
| | | return dataPermission.value(); |
| | | /** |
| | | * 扫描指定包下的 Mapper 类,并查找其中带有特定注解的方法或类 |
| | | * |
| | | * @param mapperPackage Mapper 类所在的包路径 |
| | | */ |
| | | private void scanMapperClasses(String mapperPackage) { |
| | | // 创建资源解析器和元数据读取工厂 |
| | | PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver(); |
| | | CachingMetadataReaderFactory factory = new CachingMetadataReaderFactory(); |
| | | // 将 Mapper 包路径按分隔符拆分为数组 |
| | | String[] packagePatternArray = StringUtils.splitPreserveAllTokens(mapperPackage, ConfigurableApplicationContext.CONFIG_LOCATION_DELIMITERS); |
| | | String classpath = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX; |
| | | try { |
| | | for (String packagePattern : packagePatternArray) { |
| | | // 将包路径转换为资源路径 |
| | | String path = ClassUtils.convertClassNameToResourcePath(packagePattern); |
| | | // 获取指定路径下的所有 .class 文件资源 |
| | | Resource[] resources = resolver.getResources(classpath + path + "/*.class"); |
| | | for (Resource resource : resources) { |
| | | // 获取资源的类元数据 |
| | | ClassMetadata classMetadata = factory.getMetadataReader(resource).getClassMetadata(); |
| | | // 获取资源对应的类对象 |
| | | Class<?> clazz = Resources.classForName(classMetadata.getClassName()); |
| | | // 查找类中的特定注解 |
| | | findAnnotation(clazz); |
| | | } |
| | | } |
| | | } catch (Exception e) { |
| | | log.error("初始化数据安全缓存时出错:{}", e.getMessage()); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * 在指定的类中查找特定的注解 DataPermission,并将带有这个注解的方法或类存储到 dataPermissionCacheMap 中 |
| | | * |
| | | * @param clazz 要查找的类 |
| | | */ |
| | | private void findAnnotation(Class<?> clazz) { |
| | | DataPermission dataPermission; |
| | | for (Method method : clazz.getMethods()) { |
| | | if (method.isDefault() || method.isVarArgs()) { |
| | | continue; |
| | | } |
| | | String mappedStatementId = clazz.getName() + "." + method.getName(); |
| | | if (AnnotationUtil.hasAnnotation(method, DataPermission.class)) { |
| | | dataPermission = AnnotationUtil.getAnnotation(method, DataPermission.class); |
| | | dataPermissionCacheMap.put(mappedStatementId, dataPermission); |
| | | return dataPermission.value(); |
| | | } |
| | | } |
| | | dataPermission = dataPermissionCacheMap.get(clazz.getName()); |
| | | if (ObjectUtil.isNotNull(dataPermission)) { |
| | | return dataPermission.value(); |
| | | } |
| | | // 获取类注解 |
| | | if (AnnotationUtil.hasAnnotation(clazz, DataPermission.class)) { |
| | | dataPermission = AnnotationUtil.getAnnotation(clazz, DataPermission.class); |
| | | dataPermissionCacheMap.put(clazz.getName(), dataPermission); |
| | | return dataPermission.value(); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * 根据映射语句 ID 或类名获取对应的 DataPermission 注解对象 |
| | | * |
| | | * @param mapperId 映射语句 ID |
| | | * @return DataPermission 注解对象,如果不存在则返回 null |
| | | */ |
| | | public DataPermission getDataPermission(String mapperId) { |
| | | // 检查缓存中是否包含映射语句 ID 对应的 DataPermission 注解对象 |
| | | if (dataPermissionCacheMap.containsKey(mapperId)) { |
| | | return dataPermissionCacheMap.get(mapperId); |
| | | } |
| | | // 如果缓存中不包含映射语句 ID 对应的 DataPermission 注解对象,则尝试使用类名作为键查找 |
| | | String clazzName = mapperId.substring(0, mapperId.lastIndexOf(".")); |
| | | if (dataPermissionCacheMap.containsKey(clazzName)) { |
| | | return dataPermissionCacheMap.get(clazzName); |
| | | } |
| | | return null; |
| | | } |
| | | |
| | | /** |
| | | * 检查给定的映射语句 ID 是否有效,即是否能够找到对应的 DataPermission 注解对象 |
| | | * |
| | | * @param mapperId 映射语句 ID |
| | | * @return 如果找到对应的 DataPermission 注解对象,则返回 false;否则返回 true |
| | | */ |
| | | public boolean invalid(String mapperId) { |
| | | return getDataPermission(mapperId) == null; |
| | | } |
| | | } |