Adds a WebSocket handler to this for requests prefixed by path.
If path is null or "/", then this will be the default handler for all requests that don't
have a more specific handler.
When a path has a WebSocket handler registered, this will check incoming requests for WebSocket handshakes after all other handlers have run (unless some earlier handler has already set a status code on the message), and update the request's status, response headers, and response body accordingly.
If origin is non-null, then only requests containing a matching "Origin" header will be
accepted. If protocols is non-null, then only requests containing a compatible
"Sec-WebSocket-Protocols" header will be accepted. More complicated requirements can be handled by adding a normal handler to path
, and having it perform whatever checks are needed and setting a failure status code if the handshake should be rejected.
| this |
a Server |
| path |
the toplevel path for the handler |
| origin |
the origin of the connection |
| protocols |
the protocols supported by this handler |
| callback |
callback to invoke for successful WebSocket requests under |
| destroy |
destroy notifier to free |
| user_data |
data for |