Module tunnel 

WebSocket and upgrade tunneling

This module provides functionality for handling HTTP upgrade requests, including WebSocket connections, and bidirectional tunneling.

Functions

copy_upgrade_headers

Copy upgrade-related headers from source to destination request parts

get_upgrade_protocol

Get the upgrade protocol from a request

get_websocket_key

Extract WebSocket key from a request for validation

get_websocket_version

Extract WebSocket version from a request

is_upgrade_request

Check if a request is an upgrade request

is_upgrade_response

Check if a response indicates a successful upgrade

is_websocket_header

Check if a header should be preserved for WebSocket upgrades

is_websocket_upgrade

Check if a request is a WebSocket upgrade request

proxy_tunnel

Proxy a tunnel connection between two upgraded connections

proxy_upgrade

Handle upgrade with explicit upgrade futures