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#!./uwsgi --https :8443,foobar.crt,foobar.key --http-websockets --gevent 100 --module tests.websocket
import uwsgi
import gevent
from gevent.queue import JoinableQueue
from gevent.socket import wait_read
queue = JoinableQueue()
def application(env, sr):
ws_scheme = 'ws'
if 'HTTPS' in env or env['wsgi.url_scheme'] == 'https':
ws_scheme = 'wss'
if env['PATH_INFO'] == '/':
sr('200 OK', [('Content-Type', 'text/html')])
return """
<html>
<head>
<script language="Javascript">
var s = new WebSocket("%s://%s/foobar/");
s.onopen = function() {
alert("connected !!!");
s.send("ciao");
};
s.onmessage = function(e) {
var bb = document.getElementById('blackboard')
var html = bb.innerHTML;
bb.innerHTML = html + '<br/>' + e.data;
};
s.onerror = function(e) {
alert(e);
}
s.onclose = function(e) {
alert("connection closed");
}
function invia() {
var value = document.getElementById('testo').value;
s.send(value);
}
</script>
</head>
<body>
<h1>WebSocket</h1>
<input type="text" id="testo"/>
<input type="button" value="invia" onClick="invia();"/>
<div id="blackboard" style="width:640px;height:480px;background-color:black;color:white;border: solid 2px red;overflow:auto">
</div>
</body>
</html>
""" % (ws_scheme, env['HTTP_HOST'])
elif env['PATH_INFO'] == '/foobar/':
uwsgi.websocket_handshake(env['HTTP_SEC_WEBSOCKET_KEY'], env.get('HTTP_ORIGIN', ''))
print("websockets...")
while True:
msg = uwsgi.websocket_recv_nb()
if msg:
queue.put(msg)
else:
try:
wait_read(uwsgi.connection_fd(), 0.1)
except gevent.socket.timeout:
try:
msg = queue.get_nowait()
uwsgi.websocket_send(msg)
except Exception:
pass
return ""
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