fix and optimize casbin (#1121)

* - 删除rabac_model.conf, 改为字符串代码, 方便部署
- 删除casbin相关配置文件

* fix: delete api时只传id导致casbin_rules表清空bug

server/service/system/sys_api.go

@@ -35,9 +35,17 @@ func (apiService *ApiService) CreateApi(api system.SysApi) (err error) {
 //@return: err error
 
 func (apiService *ApiService) DeleteApi(api system.SysApi) (err error) {
-	err = global.GVA_DB.Delete(&api).Error
-	CasbinServiceApp.ClearCasbin(1, api.Path, api.Method)
-	return err
+	var entity system.SysApi
+	err = global.GVA_DB.Where("id = ?", api.ID).First(&entity).Error // 根据id查询api记录
+	if errors.Is(err, gorm.ErrRecordNotFound) {                      // api记录不存在
+		return err
+	}
+	err = global.GVA_DB.Delete(&entity).Error
+	if err != nil {
+		return err
+	}
+	CasbinServiceApp.ClearCasbin(1, entity.Path, entity.Method)
+	return nil
 }
 
 //@author: [piexlmax](https://github.com/piexlmax)

server/service/system/sys_casbin.go

@@ -2,6 +2,8 @@ package system
 
 import (
 	"errors"
+	"github.com/casbin/casbin/v2/model"
+	"go.uber.org/zap"
 	"sync"
 
 	"github.com/casbin/casbin/v2"
@@ -92,7 +94,28 @@ var (
 func (casbinService *CasbinService) Casbin() *casbin.SyncedEnforcer {
 	once.Do(func() {
 		a, _ := gormadapter.NewAdapterByDB(global.GVA_DB)
-		syncedEnforcer, _ = casbin.NewSyncedEnforcer(global.GVA_CONFIG.Casbin.ModelPath, a)
+		text := `
+		[request_definition]
+		r = sub, obj, act
+		
+		[policy_definition]
+		p = sub, obj, act
+		
+		[role_definition]
+		g = _, _
+		
+		[policy_effect]
+		e = some(where (p.eft == allow))
+		
+		[matchers]
+		m = r.sub == p.sub && keyMatch2(r.obj,p.obj) && r.act == p.act
+		`
+		m, err := model.NewModelFromString(text)
+		if err != nil {
+			zap.L().Error("字符串加载模型失败!", zap.Error(err))
+			return
+		}
+		syncedEnforcer, _ = casbin.NewSyncedEnforcer(m, a)
 	})
 	_ = syncedEnforcer.LoadPolicy()
 	return syncedEnforcer