初始化项目框架，完成部分接口开发

utility/myCasbin/casbin.go

@@ -0,0 +1,106 @@
+package myCasbin
+
+import (
+	"context"
+	"github.com/casbin/casbin/v2"
+	"github.com/gogf/gf/v2/frame/g"
+	"github.com/gogf/gf/v2/os/glog"
+	"github.com/hailaz/gf-casbin-adapter/v2"
+	"server/internal/consts"
+	"sync"
+)
+
+type myCasbin struct {
+	*casbin.Enforcer
+}
+
+var (
+	instance *myCasbin
+	once     sync.Once
+)
+
+func init() {
+	ctx := context.Background()
+	once.Do(func() {
+		modelPath := g.Config().MustGet(ctx, "casbin.modelPath").String()
+		enforcer, err := casbin.NewEnforcer(modelPath, adapter.NewAdapter(
+			adapter.Options{
+				GDB:       g.DB(),
+				FieldName: &adapter.FieldName{PType: "p_type"},
+			},
+		))
+		if err != nil {
+			glog.Errorf(ctx, "init casbin error: %v", err)
+		}
+
+		enforcer.LoadPolicy()
+
+		enforcer.AddGroupingPolicy(consts.UserRoleCode, consts.GuestRoleCode)
+		enforcer.AddGroupingPolicy(consts.AuthorRoleCode, consts.UserRoleCode)
+		enforcer.AddGroupingPolicy(consts.AdminRoleCode, consts.AuthorRoleCode)
+		// guest
+		{
+
+		}
+
+		//  user
+		{
+			// book
+			// chapter
+			// feedback
+			// user
+			enforcer.AddPolicy("admin", "/user/info", "GET", "获取用户信息")
+		}
+		// author
+		{
+			// book
+			enforcer.AddPolicy("admin", "/book", "GET", "获取图书列表")
+			// chapter
+
+			// category
+			enforcer.AddPolicy("admin", "/category", "GET", "获取分类列表")
+		}
+
+		//  admin
+		{
+
+			// feedback
+			enforcer.AddPolicy("admin", "/feedback", "GET", "获取反馈列表")
+			// category
+			enforcer.AddPolicy("admin", "/category", "POST", "创建分类")
+			enforcer.AddPolicy("admin", "/category", "PUT", "更新分类")
+			enforcer.AddPolicy("admin", "/category", "DELETE", "删除分类")
+			// admin
+			enforcer.AddPolicy("admin", "/admin/info", "GET", "获取管理员用户信息")
+		}
+		instance = &myCasbin{Enforcer: enforcer}
+
+	})
+	glog.Infof(ctx, "init casbin success")
+}
+
+func GetMyCasbin() *myCasbin {
+	if instance == nil {
+		panic("casbin not init")
+	}
+	return instance
+}
+
+// HasPermission 判断给定的权限标识是否拥有访问指定 URL 和方法的权限。
+//
+// 参数:
+//   - permission: 权限标识（如角色名或用户 ID）
+//   - url: 请求的路径（如 "/api/user/list"）
+//   - method: HTTP 请求方法（如 "GET", "POST"）
+//
+// 返回:
+//   - access: 如果有权限则为 true；否则为 false。
+//   - 若校验过程中发生错误，将记录日志并返回 false。
+func (m *myCasbin) HasPermission(permission, url, method string) (access bool) {
+	enforce, err := m.Enforcer.Enforce(permission, url, method)
+	if err != nil {
+		glog.Errorf(context.Background(), "enforce error: %v", err)
+		return
+	}
+	return enforce
+}