[SR-Users] WebSocket data in TCP connection

[mayamatakeshi]

On Mon, May 4, 2015 at 5:22 PM, mayamatakeshi <mayamatakeshi at gmail.com>
wrote:

>
>
> On Mon, May 4, 2015 at 5:05 PM, mayamatakeshi <mayamatakeshi at gmail.com>
> wrote:
>
>>
>>
>> On Sun, May 3, 2015 at 7:21 PM, mayamatakeshi <mayamatakeshi at gmail.com>
>> wrote:
>>
>>> Hello,
>>>
>>> about module websocket, is it possible to associate a value with the TCP
>>> connection and have this value readable when handling SIP requests on that
>>> connection?
>>>
>>
>> Hello, I have found a way to do it using htable.
>> Here is the gist of it in case someone else needs this:
>>
>>
>> loadmodule "xhttp.so"
>> loadmodule "websocket.so"
>>
>> modparam("htable", "htable", "websocket=>size=10")
>>
>> route {
>>     if(proto == WS) {
>>         xlog("L_DEBUG", "WebSocket check: conid=$conid
>> val=$sht(websocket=>$conid)\n");
>>     }
>> }
>>
>> event_route[xhttp:request] {
>>     if (ws_handle_handshake()) {
>>         # successful connection
>> #adding $conid to hash table
>>         $sht(websocket=>$conid) = $hu;
>>         exit;
>>      }
>> }
>>
>> event_route[websocket:closed] {
>>     xlog("L_DEBUG", "WebSocket connection from $si:$sp has closed\n");
>>     # deleting $conid from hash table
>>     $sht(websocket=>$conid) = $null;
>> }
>>
>
> Checking again, deletion of the entry in the hash table is failing.
>
> In older versions of kamailio, if I am not mistaken, i used:
>   $sht(websocket=>$conid) = null;
> but it seems in recent version null was replaced with $null (as if i use
> null, kamailio will not start)
> so I am using
>     $sht(websocket=>$conid) = $null;
> but it seems this doesn't work.
> So, how do we currently delete an htable entry at config file?
>

My mistake. htable entry deletion by assignment to $null does work, the
problem is that when we get websocked:closed, $conid is not valid anymore.
I confirmed this by using this:
    xlog("L_ERR", "WebSocket connection from $si:$sp has closed.
conid=$conid\n");

/usr/local/src/git/sip-router-4.2/kamailio[6443]: ERROR: WebSocket
connection from 192.168.2.33:63179 has closed. conid=<null>

Wouldn't this be a bug? Shouldn't the $conid be available when that event
happens?


>
>
>
>>
>> Regards,
>> Takeshi
>>
>
>
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