Add auth

src/utils.rs

@@ -7,3 +7,21 @@ pub fn millis_since_unix_epoch() -> js_int::UInt {
         .as_millis() as u32)
         .into()
 }
+
+pub fn bytes_to_string(bytes: &[u8]) -> String {
+    String::from_utf8(bytes.to_vec()).expect("convert bytes to string")
+}
+
+pub fn vec_to_bytes(vec: Vec<String>) -> Vec<u8> {
+    vec.into_iter()
+        .map(|string| string.into_bytes())
+        .collect::<Vec<Vec<u8>>>()
+        .join(&0)
+}
+
+pub fn bytes_to_vec(bytes: &[u8]) -> Vec<String> {
+    bytes
+        .split(|&b| b == 0)
+        .map(|bytes_string| bytes_to_string(bytes_string))
+        .collect::<Vec<String>>()
+}