A WebSocket message parser/constructor. It is not a server and is not meant to be one. It can be used in any server, event loop etc.
h = LibWebSocket::Handshake::Server.new
# Parse client request
h.parse \<<EOF
GET /demo HTTP/1.1
Upgrade: WebSocket
Connection: Upgrade
Host: example.com
Origin: http://example.com
Sec-WebSocket-Key1: 18x 6]8vM;54 *(5: { U1]8 z [ 8
Sec-WebSocket-Key2: 1_ tx7X d < nw 334J702) 7]o}` 0
Tm[K T2u
EOF
h.error # Check if there were any errors
h.done? # Returns true
# Create response
h.to_s # HTTP/1.1 101 WebSocket Protocol Handshake
# Upgrade: WebSocket
# Connection: Upgrade
# Sec-WebSocket-Origin: http://example.com
# Sec-WebSocket-Location: ws://example.com/demo
#
# fQJ,fN/4F4!~K~MH
h = LibWebSocket::Handshake::Client.new(url => 'ws://example.com')
# Create request
h.to_s # GET /demo HTTP/1.1
# Upgrade: WebSocket
# Connection: Upgrade
# Host: example.com
# Origin: http://example.com
# Sec-WebSocket-Key1: 18x 6]8vM;54 *(5: { U1]8 z [ 8
# Sec-WebSocket-Key2: 1_ tx7X d < nw 334J702) 7]o}` 0
#
# Tm[K T2u
# Parse server response
h.parse \<<EOF
HTTP/1.1 101 WebSocket Protocol Handshake
Upgrade: WebSocket
Connection: Upgrade
Sec-WebSocket-Origin: http://example.com
Sec-WebSocket-Location: ws://example.com/demo
fQJ,fN/4F4!~K~MH
EOF
h.error # Check if there were any errors
h.done? # Returns true
# Create frame
frame = LibWebSocket::Frame.new('123')
frame.to_s # \x00123\xff
# Parse frames
frame = LibWebSocket::Frame.new
frame.append("123\x00foo\xff56\x00bar\xff789")
frame.next # foo
frame.next # bar
For examples on how to use LibWebSocket with various event loops see examples directory in the repository.
Copyright (C) 2011, Bernard Potocki.
Based on protocol-websocket perl distribution by Viacheslav Tykhanovskyi.
This program is free software, you can redistribute it and/or modify it under the MIT License.