VILLASweb-backend-go/routes/file/file_middleware.go

61 lines
1.9 KiB
Go

/** File package, middleware.
*
* @author Sonja Happ <sonja.happ@eonerc.rwth-aachen.de>
* @copyright 2014-2019, Institute for Automation of Complex Power Systems, EONERC
* @license GNU General Public License (version 3)
*
* VILLASweb-backend-go
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************************/
package file
import (
"fmt"
"git.rwth-aachen.de/acs/public/villas/web-backend-go/database"
"git.rwth-aachen.de/acs/public/villas/web-backend-go/helper"
"git.rwth-aachen.de/acs/public/villas/web-backend-go/routes/scenario"
"github.com/gin-gonic/gin"
)
func CheckPermissions(c *gin.Context, operation database.CRUD) (bool, File) {
var f File
err := database.ValidateRole(c, database.ModelFile, operation)
if err != nil {
helper.UnprocessableEntityError(c, fmt.Sprintf("Access denied (role validation of file failed): %v", err.Error()))
return false, f
}
fileID, err := helper.GetIDOfElement(c, "fileID", "path", -1)
if err != nil {
return false, f
}
err = f.ByID(uint(fileID))
if helper.DBError(c, err) {
return false, f
}
if operation != database.Read {
// check access to scenario only if operation is not Read (=download) of file
ok, _ := scenario.CheckPermissions(c, operation, "body", int(f.ScenarioID))
if !ok {
return false, f
}
}
return true, f
}