feat: expose some casbin APIs (#955)

* feat: expose some casbin APIs

Signed-off-by: Yixiang Zhao <seriouszyx@foxmail.com>

* feat: add BatchEnforce API

Signed-off-by: Yixiang Zhao <seriouszyx@foxmail.com>

* fix: solve requested changes

Signed-off-by: Yixiang Zhao <seriouszyx@foxmail.com>

controllers/enforcer.go

@@ -0,0 +1,88 @@
+// Copyright 2022 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package controllers
+
+import (
+	"encoding/json"
+
+	"github.com/casdoor/casdoor/object"
+)
+
+func (c *ApiController) Enforce() {
+	userId := c.GetSessionUsername()
+	if userId == "" {
+		c.ResponseError("Please sign in first")
+		return
+	}
+
+	var permissionRule object.PermissionRule
+	err := json.Unmarshal(c.Ctx.Input.RequestBody, &permissionRule)
+	if err != nil {
+		panic(err)
+	}
+
+	c.Data["json"] = object.Enforce(userId, &permissionRule)
+	c.ServeJSON()
+}
+
+func (c *ApiController) BatchEnforce() {
+	userId := c.GetSessionUsername()
+	if userId == "" {
+		c.ResponseError("Please sign in first")
+		return
+	}
+
+	var permissionRules []object.PermissionRule
+	err := json.Unmarshal(c.Ctx.Input.RequestBody, &permissionRules)
+	if err != nil {
+		panic(err)
+	}
+
+	c.Data["json"] = object.BatchEnforce(userId, permissionRules)
+	c.ServeJSON()
+}
+
+func (c *ApiController) GetAllObjects() {
+	userId := c.GetSessionUsername()
+	if userId == "" {
+		c.ResponseError("Please sign in first")
+		return
+	}
+
+	c.Data["json"] = object.GetAllObjects(userId)
+	c.ServeJSON()
+}
+
+func (c *ApiController) GetAllActions() {
+	userId := c.GetSessionUsername()
+	if userId == "" {
+		c.ResponseError("Please sign in first")
+		return
+	}
+
+	c.Data["json"] = object.GetAllActions(userId)
+	c.ServeJSON()
+}
+
+func (c *ApiController) GetAllRoles() {
+	userId := c.GetSessionUsername()
+	if userId == "" {
+		c.ResponseError("Please sign in first")
+		return
+	}
+
+	c.Data["json"] = object.GetAllRoles(userId)
+	c.ServeJSON()
+}