ajout app

Voltaserve/api/guard/file_guard.go

@@ -0,0 +1,52 @@
+package guard
+
+import (
+	"voltaserve/cache"
+	"voltaserve/errorpkg"
+	"voltaserve/model"
+
+	"github.com/gofiber/fiber/v2/log"
+)
+
+type FileGuard struct {
+	groupCache *cache.GroupCache
+}
+
+func NewFileGuard() *FileGuard {
+	return &FileGuard{
+		groupCache: cache.NewGroupCache(),
+	}
+}
+
+func (g *FileGuard) IsAuthorized(user model.User, file model.File, permission string) bool {
+	for _, p := range file.GetUserPermissions() {
+		if p.GetUserID() == user.GetID() && model.IsEquivalentPermission(p.GetValue(), permission) {
+			return true
+		}
+	}
+	for _, p := range file.GetGroupPermissions() {
+		g, err := g.groupCache.Get(p.GetGroupID())
+		if err != nil {
+			log.Error(err)
+			return false
+		}
+		for _, u := range g.GetUsers() {
+			if u == user.GetID() && model.IsEquivalentPermission(p.GetValue(), permission) {
+				return true
+			}
+		}
+	}
+	return false
+}
+
+func (g *FileGuard) Authorize(user model.User, file model.File, permission string) error {
+	if !g.IsAuthorized(user, file, permission) {
+		err := errorpkg.NewFilePermissionError(user, file, permission)
+		if g.IsAuthorized(user, file, model.PermissionViewer) {
+			return err
+		} else {
+			return errorpkg.NewOrganizationNotFoundError(err)
+		}
+	}
+	return nil
+}