Respect payload length of ws control messages (#67)

* Respect payload length of ws control messages

Websocket control messages are allowed to have payloads. Don't set the
payload lenght to zero when deserializing them, which can corrupt the
message and potentially the remainder of the stream.

* Update changelog

Author: zolstein

edge-ws/CHANGELOG.md

@@ -6,6 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+* Respect payload length of control messages
 
 ## [0.4.0] - 2025-01-02
 * Option to erase the generics from the IO errors

edge-ws/src/lib.rs

@@ -193,12 +193,7 @@ impl FrameHeader {
 
             let frame_header = FrameHeader {
                 frame_type,
-                payload_len: matches!(
-                    frame_type,
-                    FrameType::Binary(_) | FrameType::Text(_) | FrameType::Continue(_)
-                )
-                .then(|| payload_len)
-                .unwrap_or(0),
+                payload_len,
                 mask_key,
             };