1.6 KiB
1.6 KiB
WebSocket Echo Server with Fallbacks
This example has the broadest browser support currently possible with Autobahn.
It supports native WebSocket protocol variants Hybi-10+ and RFC6455.
On IE6-9 it uses Google Chrome Frame when available.
On IE8,9 it can use a Flash-based WebSocket implementation. This requires Adobe Flash 10+.
The Flash implementation can also be used on older Android devices without Chrome Mobile, but with Flash. You need to remove the conditional comments around the Flash file includes though in this case from the
index.html.
Running
Run the server by doing
python server.py
and open
http://localhost:8080/
in your browser. Open the JS console to see if the WebSocket connection was successful.
To activate debug output on the server, start it
python server.py debug
Here is a typical browser log when the Flash implementation kicks in:
[WebSocket] debug enabled
[WebSocket] policy file: xmlsocket://127.0.0.1:843
[WebSocket] connected
[WebSocket] request header:
GET / HTTP/1.1
Host: 127.0.0.1:9000
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Key: Ol4WMQosGk0SBHIGTBQMAQ==
Origin: http://127.0.0.1:8080
Sec-WebSocket-Version: 13
[WebSocket] response header:
HTTP/1.1 101 Switching Protocols
Server: AutobahnPython/0.6.0
Upgrade: WebSocket
Connection: Upgrade
Sec-WebSocket-Accept: 4wHBJpfr8P419FMUv8sJ/rT0x/4=
Connected!