add rutor api

server/rutor/utils/utils.go

@@ -0,0 +1,14 @@
+package utils
+
+import "strings"
+
+func ClearStr(str string) string {
+	ret := ""
+	str = strings.ToLower(str)
+	for _, r := range str {
+		if (r >= '0' && r <= '9') || (r >= 'a' && r <= 'z') || (r >= 'а' && r <= 'я') || r == 'ё' {
+			ret = ret + string(r)
+		}
+	}
+	return ret
+}