Hi,
I would like to use ws4redis on Ubuntu 14.04 with Apache 2.4.7. The version of uwsgi for Ubuntu 14.04 is 2.0.6, but do not seem to be compiled with websockets support, so I installed the version 2.0.11.2 with pip. I also edited /etc/init.d/uwsgi so it launches the pip version.

I just want to load a Hello world websocket page, and see the message in the browser console.

• It works with manage.py runserver
• It works with a standalone uwsgi server running wsgi.py.
• It works with uwsgi behind nginx.
• It does not work with uwsgi behind apache. The socket is connected, but the browser never receive any message.
• It works with apache if I replace wsgi_websockets.py with the following python code.

import uwsgi
def application(env, start_response):
    uwsgi.websocket_handshake(env['HTTP_SEC_WEBSOCKET_KEY'], env.get('HTTP_ORIGIN', ''))
    uwsgi.websocket_send("Hello world")
    while True:
        msg = uwsgi.websocket_recv()
        uwsgi.websocket_send(msg)

foobar/views.py

def index(request):
    pub = RedisPublisher(facility="hello", broadcast=True)
    pub.publish_message(RedisMessage("Hello world"))
    ....

foobar/static/foobar.js

$(function() {
    ws4redis = WS4Redis({
        uri: WEBSOCKET_URI + 'hello?subscribe-broadcast&echo',
        receive_message: wsReceive,
        heartbeat_msg: WEBSOCKET_HEARTBEAT
    });
});

The symptoms I get are:

• I think I need to te that I use this behind SSL, and it usually work fine. I also tested all this with regular http, and it has been the same.
• The browser console shows:
  • "Connecting to wss://foobar.com/ews/hello?subscribe-broadcast&echo ..." ws4redis.js:18:4
  • Connected! ws4redis.js:46:3
• If I manually reach https://foobar.com/ws/hello?subscribe-broadcast&echo, after a while I get a apache 500 error. 'HTTP_SEC_WEBSOCKET_KEY' Internal Server Error .... but if I do this with uwsgi, I get this message: Client does not wish to upgrade to a websocket.
• uwsgi logs and apache error log do not seem to dump useful information
• My django log shows:

ERROR    2015-11-06 10:18:53,433 31152    wsgi_server:122  Other Exception: 'HTTP_SEC_WEBSOCKET_KEY'
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/ws4redis/wsgi_server.py", line 81, in __call__
    websocket = self.upgrade_websocket(environ, start_response)
  File "/usr/local/lib/python2.7/dist-packages/ws4redis/uwsgi_runserver.py", line 52, in upgrade_websocket
    uwsgi.websocket_handshake(environ['HTTP_SEC_WEBSOCKET_KEY'], environ.get('HTTP_ORIGIN', ''))
KeyError: 'HTTP_SEC_WEBSOCKET_KEY'

/etc/apache2/sites-enabled/foobar.com.conf

<VirtualHost _default_:443>
    <IfModule mod_proxy_wstunnel.c>
        ProxyPass        /ws/   ws://127.0.0.1:3032/
        ProxyPassReverse /ws/   ws://127.0.0.1:3032/
    </IfModule>

    <IfModule mod_proxy_uwsgi.c>
        ProxyPass        /static !
        ProxyPass        /media  !
        ProxyPass        /       uwsgi://127.0.0.1:3031/
    </IfModule>
</VirtualHost>

/etc/uwsgi/apps-enabled/websockets.ini

[uwsgi]

chdir           = /path/to/foobar
module          = foobar.wsgi_websockets:application

master          = true
processes       = 2
socket          = /path/to/foobar/websockets.socket
http-socket     = 127.0.0.1:3032
chmod-socket    = 666
vacuum          = true
env             = DJANGO_SETTINGS_MODULE=foobar.settings
env             = DJANGO_STATIC_ROOT=/path/to/foobar/static

gevent          = 1000
http-websockets = true