Make sure that DropView is not executed without write permissions

Signed-off-by: Alejandro García Montoro <alejandro.garciamontoro@gmail.com>

Author: agarciamontoro

engine.go

@@ -120,7 +120,7 @@ func (e *Engine) Query(
 	case *plan.CreateIndex:
 		typ = sql.CreateIndexProcess
 		perm = auth.ReadPerm | auth.WritePerm
-	case *plan.InsertInto, *plan.DeleteFrom, *plan.Update, *plan.DropIndex, *plan.UnlockTables, *plan.LockTables, *plan.CreateView:
+	case *plan.InsertInto, *plan.DeleteFrom, *plan.Update, *plan.DropIndex, *plan.UnlockTables, *plan.LockTables, *plan.CreateView, *plan.DropView:
 		perm = auth.ReadPerm | auth.WritePerm
 	}
 

engine_test.go

@@ -3149,6 +3149,7 @@ func TestReadOnly(t *testing.T) {
 		`DROP INDEX foo ON mytable`,
 		`INSERT INTO mytable (i, s) VALUES(42, 'yolo')`,
 		`CREATE VIEW myview AS SELECT i FROM mytable`,
+		`DROP VIEW myview`,
 	}
 
 	for _, query := range writingQueries {