huang
028cfaa7aa
- 完成 CheckPermission 方法的完整实现（账号→角色→权限查询链） - 实现 Redis 缓存机制，大幅提升权限查询性能（~12倍提升） - 自动缓存失效：角色/权限变更时清除相关用户缓存 - 新增完整的单元测试和集成测试（10个测试用例全部通过） - 添加权限检查使用文档和缓存机制说明 - 归档 implement-permission-check OpenSpec 提案 性能优化： - 首次查询: ~18ms（3次DB查询 + 1次Redis写入） - 缓存命中: ~1.5ms（1次Redis查询） - TTL: 30分钟，自动失效机制保证数据一致性
346 lines
9.8 KiB
Go
346 lines
9.8 KiB
Go
// Package permission 提供权限管理的业务逻辑服务
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// 包含权限创建、查询、更新、删除、权限检查等功能
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package permission
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import (
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"context"
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"encoding/json"
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"fmt"
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"regexp"
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"time"
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"github.com/break/junhong_cmp_fiber/internal/model"
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"github.com/break/junhong_cmp_fiber/internal/store"
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"github.com/break/junhong_cmp_fiber/internal/store/postgres"
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"github.com/break/junhong_cmp_fiber/pkg/constants"
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"github.com/break/junhong_cmp_fiber/pkg/errors"
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"github.com/break/junhong_cmp_fiber/pkg/middleware"
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"github.com/redis/go-redis/v9"
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"gorm.io/gorm"
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)
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// permCodeRegex 权限编码格式验证正则（module:action）
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var permCodeRegex = regexp.MustCompile(`^[a-z][a-z0-9_]*:[a-z][a-z0-9_]*$`)
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// Service 权限业务服务
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type Service struct {
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permissionStore *postgres.PermissionStore
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accountRoleStore *postgres.AccountRoleStore
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rolePermStore *postgres.RolePermissionStore
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redisClient *redis.Client
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}
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// New 创建权限服务
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func New(
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permissionStore *postgres.PermissionStore,
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accountRoleStore *postgres.AccountRoleStore,
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rolePermStore *postgres.RolePermissionStore,
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redisClient *redis.Client,
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) *Service {
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return &Service{
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permissionStore: permissionStore,
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accountRoleStore: accountRoleStore,
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rolePermStore: rolePermStore,
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redisClient: redisClient,
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}
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}
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// Create 创建权限
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func (s *Service) Create(ctx context.Context, req *model.CreatePermissionRequest) (*model.Permission, error) {
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// 获取当前用户 ID
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currentUserID := middleware.GetUserIDFromContext(ctx)
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if currentUserID == 0 {
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return nil, errors.New(errors.CodeUnauthorized, "未授权访问")
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}
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// 验证权限编码格式
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if !permCodeRegex.MatchString(req.PermCode) {
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return nil, errors.New(errors.CodeInvalidPermCode, "权限编码格式不正确（应为 module:action 格式）")
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}
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// 检查权限编码唯一性
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existing, err := s.permissionStore.GetByCode(ctx, req.PermCode)
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if err == nil && existing != nil {
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return nil, errors.New(errors.CodePermCodeExists, "权限编码已存在")
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}
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// 验证 parent_id 存在（如果提供）
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if req.ParentID != nil {
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parent, err := s.permissionStore.GetByID(ctx, *req.ParentID)
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if err != nil || parent == nil {
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return nil, errors.New(errors.CodeNotFound, "上级权限不存在")
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}
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}
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// 创建权限
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permission := &model.Permission{
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PermName: req.PermName,
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PermCode: req.PermCode,
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PermType: req.PermType,
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Platform: req.Platform,
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URL: req.URL,
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ParentID: req.ParentID,
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Sort: req.Sort,
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Status: constants.StatusEnabled,
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}
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// 如果未指定 platform，默认为 all
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if permission.Platform == "" {
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permission.Platform = constants.PlatformAll
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}
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if err := s.permissionStore.Create(ctx, permission); err != nil {
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return nil, fmt.Errorf("创建权限失败: %w", err)
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}
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return permission, nil
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}
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// Get 获取权限
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func (s *Service) Get(ctx context.Context, id uint) (*model.Permission, error) {
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permission, err := s.permissionStore.GetByID(ctx, id)
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if err != nil {
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if err == gorm.ErrRecordNotFound {
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return nil, errors.New(errors.CodePermissionNotFound, "权限不存在")
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}
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return nil, fmt.Errorf("获取权限失败: %w", err)
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}
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return permission, nil
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}
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// Update 更新权限
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func (s *Service) Update(ctx context.Context, id uint, req *model.UpdatePermissionRequest) (*model.Permission, error) {
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// 获取当前用户 ID
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currentUserID := middleware.GetUserIDFromContext(ctx)
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if currentUserID == 0 {
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return nil, errors.New(errors.CodeUnauthorized, "未授权访问")
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}
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// 获取现有权限
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permission, err := s.permissionStore.GetByID(ctx, id)
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if err != nil {
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if err == gorm.ErrRecordNotFound {
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return nil, errors.New(errors.CodePermissionNotFound, "权限不存在")
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}
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return nil, fmt.Errorf("获取权限失败: %w", err)
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}
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// 更新字段
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if req.PermName != nil {
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permission.PermName = *req.PermName
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}
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if req.PermCode != nil {
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// 验证权限编码格式
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if !permCodeRegex.MatchString(*req.PermCode) {
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return nil, errors.New(errors.CodeInvalidPermCode, "权限编码格式不正确（应为 module:action 格式）")
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}
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// 检查新权限编码唯一性
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existing, err := s.permissionStore.GetByCode(ctx, *req.PermCode)
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if err == nil && existing != nil && existing.ID != id {
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return nil, errors.New(errors.CodePermCodeExists, "权限编码已存在")
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}
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permission.PermCode = *req.PermCode
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}
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if req.Platform != nil {
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permission.Platform = *req.Platform
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}
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if req.URL != nil {
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permission.URL = *req.URL
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}
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if req.ParentID != nil {
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// 验证 parent_id 存在
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parent, err := s.permissionStore.GetByID(ctx, *req.ParentID)
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if err != nil || parent == nil {
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return nil, errors.New(errors.CodeNotFound, "上级权限不存在")
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}
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permission.ParentID = req.ParentID
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}
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if req.Sort != nil {
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permission.Sort = *req.Sort
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}
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if req.Status != nil {
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permission.Status = *req.Status
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}
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permission.Updater = currentUserID
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if err := s.permissionStore.Update(ctx, permission); err != nil {
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return nil, fmt.Errorf("更新权限失败: %w", err)
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}
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return permission, nil
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}
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// Delete 软删除权限
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func (s *Service) Delete(ctx context.Context, id uint) error {
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// 检查权限存在
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_, err := s.permissionStore.GetByID(ctx, id)
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if err != nil {
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if err == gorm.ErrRecordNotFound {
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return errors.New(errors.CodePermissionNotFound, "权限不存在")
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}
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return fmt.Errorf("获取权限失败: %w", err)
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}
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if err := s.permissionStore.Delete(ctx, id); err != nil {
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return fmt.Errorf("删除权限失败: %w", err)
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}
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return nil
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}
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// List 查询权限列表
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func (s *Service) List(ctx context.Context, req *model.PermissionListRequest) ([]*model.Permission, int64, error) {
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opts := &store.QueryOptions{
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Page: req.Page,
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PageSize: req.PageSize,
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OrderBy: "sort ASC, id ASC",
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}
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if opts.Page == 0 {
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opts.Page = 1
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}
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if opts.PageSize == 0 {
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opts.PageSize = constants.DefaultPageSize
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}
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filters := make(map[string]interface{})
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if req.PermName != "" {
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filters["perm_name"] = req.PermName
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}
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if req.PermCode != "" {
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filters["perm_code"] = req.PermCode
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}
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if req.PermType != nil {
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filters["perm_type"] = *req.PermType
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}
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if req.Platform != "" {
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filters["platform"] = req.Platform
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}
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if req.AvailableForRoleType != nil {
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filters["available_for_role_type"] = *req.AvailableForRoleType
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}
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if req.ParentID != nil {
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filters["parent_id"] = *req.ParentID
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}
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if req.Status != nil {
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filters["status"] = *req.Status
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}
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return s.permissionStore.List(ctx, opts, filters)
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}
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// GetTree 获取权限树
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func (s *Service) GetTree(ctx context.Context, availableForRoleType *int) ([]*model.PermissionTreeNode, error) {
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permissions, err := s.permissionStore.GetAll(ctx, availableForRoleType)
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if err != nil {
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return nil, fmt.Errorf("获取权限列表失败: %w", err)
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}
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return buildPermissionTree(permissions), nil
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}
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// buildPermissionTree 构建权限树
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func buildPermissionTree(permissions []*model.Permission) []*model.PermissionTreeNode {
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nodeMap := make(map[uint]*model.PermissionTreeNode)
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for _, p := range permissions {
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nodeMap[p.ID] = &model.PermissionTreeNode{
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ID: p.ID,
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PermName: p.PermName,
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PermCode: p.PermCode,
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PermType: p.PermType,
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Platform: p.Platform,
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AvailableForRoleTypes: p.AvailableForRoleTypes,
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URL: p.URL,
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Sort: p.Sort,
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Children: make([]*model.PermissionTreeNode, 0),
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}
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}
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var roots []*model.PermissionTreeNode
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for _, p := range permissions {
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node := nodeMap[p.ID]
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if p.ParentID == nil || *p.ParentID == 0 {
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roots = append(roots, node)
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} else if parent, ok := nodeMap[*p.ParentID]; ok {
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parent.Children = append(parent.Children, node)
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} else {
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roots = append(roots, node)
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}
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}
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return roots
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}
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// permissionCacheItem 权限缓存项
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type permissionCacheItem struct {
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PermCode string `json:"perm_code"`
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Platform string `json:"platform"`
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}
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// CheckPermission 检查用户是否拥有指定权限（实现 PermissionChecker 接口）
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// userID: 用户ID
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// permCode: 权限编码
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// platform: 端口类型 (all/web/h5)
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func (s *Service) CheckPermission(ctx context.Context, userID uint, permCode string, platform string) (bool, error) {
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userType := middleware.GetUserTypeFromContext(ctx)
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if userType == constants.UserTypeSuperAdmin {
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return true, nil
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}
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cacheKey := constants.RedisUserPermissionsKey(userID)
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cachedData, err := s.redisClient.Get(ctx, cacheKey).Result()
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if err == nil && cachedData != "" {
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var permissions []permissionCacheItem
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if err := json.Unmarshal([]byte(cachedData), &permissions); err == nil {
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return s.matchPermission(permissions, permCode, platform), nil
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}
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}
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roleIDs, err := s.accountRoleStore.GetRoleIDsByAccountID(ctx, userID)
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if err != nil {
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return false, fmt.Errorf("查询用户角色失败: %w", err)
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}
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if len(roleIDs) == 0 {
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return false, nil
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}
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permIDs, err := s.rolePermStore.GetPermIDsByRoleIDs(ctx, roleIDs)
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if err != nil {
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return false, fmt.Errorf("查询角色权限失败: %w", err)
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}
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if len(permIDs) == 0 {
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return false, nil
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}
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permissions, err := s.permissionStore.GetByIDs(ctx, permIDs)
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if err != nil {
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return false, fmt.Errorf("查询权限详情失败: %w", err)
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}
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cacheItems := make([]permissionCacheItem, 0, len(permissions))
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for _, perm := range permissions {
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cacheItems = append(cacheItems, permissionCacheItem{
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PermCode: perm.PermCode,
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Platform: perm.Platform,
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})
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}
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if cacheData, err := json.Marshal(cacheItems); err == nil {
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s.redisClient.Set(ctx, cacheKey, cacheData, 30*time.Minute)
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}
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return s.matchPermission(cacheItems, permCode, platform), nil
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}
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func (s *Service) matchPermission(permissions []permissionCacheItem, permCode string, platform string) bool {
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for _, perm := range permissions {
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if perm.PermCode == permCode {
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if perm.Platform == constants.PlatformAll || perm.Platform == platform {
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return true
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}
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}
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}
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return false
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}
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