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Hello there Rahul,<BR>
<BR>
Thanks for reporting. Now the issue is fixed in a consistent way at the SVN 217 and<BR>
will be delivered on next stable release:<BR>
<BR>
<A HREF="https://dolphin.aspl.es/svn/publico/nopoll/">https://dolphin.aspl.es/svn/publico/nopoll/</A><BR>
<BR>
Now, it will work for your case without any additional effort. Now I'm on it, I've updated<BR>
the API to allow handling these configurations and to allow the listener to select which<BR>
protocol is supported or take any other actions, including closing the connection, when<BR>
the protocol requested by the client isn't supported:<BR>
<BR>
- nopoll_conn_get_accepted_protocol (listener and client)<BR>
- nopoll_conn_get_requested_protocol (listener)<BR>
- nopoll_conn_set_accepted_protocol (listener)<BR>
<BR>
Added regression test (test_27) to reproduce bug reported, check fix introduced and test<BR>
new API symbols added. <BR>
<BR>
Again, thanks for reporting ...and any twitter, web, etc, reference to our noPoll site <BR>
<A HREF="http://www.aspl.es/nopollis">http://www.aspl.es/nopoll</A> is more than welcome,<BR>
<BR>
Best Regards,<BR>
<BR>
<BR>
<BLOCKQUOTE TYPE=CITE>
Hello,<BR>
<BR>
<BR>
<BR>
After struggling with libwebsocket library for some days I switched to using the noPoll<BR>
<BR>
library. So far things are going really well except I faced one issue very early on:<BR>
<BR>
<BR>
<BR>
I am using the library to make a client connection to a websocket server.<BR>
<BR>
After connecting to a websocket server, the connection is rejected. I see the following error<BR>
<BR>
after enabling debug log.<BR>
<BR>
<BR>
<BR>
(proc 23267): (critical) nopoll_conn.c:1858 (nopoll_conn_check_mime_header_repeated) <BR>
<BR>
Provided header Sec-WebSocket-Protocol twice, closing connection<BR>
<BR>
<BR>
<BR>
The code is using the API somewhat like this:<BR>
<BR>
<BR>
<BR>
noPollConn * connection = nopoll_conn_new(m_pContext, "127.0.0.1", "8080", NULL,<BR>
<BR>
"/", "some-protocol", "some-origin");<BR>
<BR>
<BR>
<BR>
Note that we are setting the "protocols" parameter. It seems the server responds with the<BR>
<BR>
same protocol string set in the header for Sec-WebSocket-Protocol<BR>
<BR>
but the library rejects this for some reason and closes the connection.<BR>
<BR>
<BR>
<BR>
I am not sure if I am doing something wrong in how the library is used<BR>
<BR>
or there is some other problem. Please advise.<BR>
<BR>
According to the specification the client can send a list of supported protocols<BR>
<BR>
and the server can respond with a subset. In our case we only need to use one protocol.<BR>
<BR>
<BR>
<BR>
Anyway, after modifying the library (see below) I was able to make progress<BR>
<BR>
with our implementation and have not seen any other issue yet.<BR>
<BR>
<BR>
<BR>
To 'fix' the above issue I had to comment out two lines at line 2192 in nopoll_conn.c:<BR>
<BR>
<BR>
<BR>
#if 0<BR>
<BR>
if (nopoll_conn_check_mime_header_repeated (conn, header, value, "Sec-WebSocket-Protocol", conn->protocols))<BR>
<BR>
return 0;<BR>
<BR>
#endif<BR>
<BR>
<BR>
<BR>
Also I had to later fix an associated memory leak:<BR>
<BR>
<BR>
<BR>
else if (strcasecmp (header, "Sec-Websocket-Protocol") == 0) {<BR>
<BR>
nopoll_free (conn->protocols);<BR>
<BR>
conn->protocols = value;<BR>
<BR>
}<BR>
<BR>
<BR>
<BR>
This may not be the correct fix but allowed me to proceed with the rest of<BR>
<BR>
the implementation.<BR>
<BR>
<BR>
<BR>
Thanks,<BR>
<BR>
<BR>
<BR>
Rahul<BR>
<BR>
<BR>
<BR>
Rahul Kale<BR>
<BR>
<BR>
<BR>
IP Video Systems<BR>
<BR>
Barco, Inc<BR>
<BR>
1287 Anvilwood Ave<BR>
<BR>
Sunnyvale, CA 94089<BR>
<BR>
<BR>
<BR>
Tel +1 408 400 4238<BR>
<BR>
<BR>
<BR>
<BR>
</BLOCKQUOTE>
<BLOCKQUOTE TYPE=CITE>
This message is subject to the following terms and conditions: <A HREF="http://www.barco.com/en/maildisclaimer">MAIL DISCLAIMER</A>
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