[pjsip] Integrating PJSIP into Mozilla Framework

Adeyeye O. Michael micadeyeye at crg.ee.uct.ac.za
Wed Feb 20 21:41:30 EST 2008


Hi Benny,
I was able to integrate the SIP stack into Mozilla FF(firefox) by making 
shared lib. of it and loading into FF using a stub.
I have quite a number of shared lib. such as libpjsipregister.so, 
libpjsipsendim.so, libpjsipreceiveim.so and so on.

In one of my shared lib. (libpjsipregister.so), I cloned the result 
after receiving IM since pjsip_rx_data will be reset after the all 
callback s are executed. I read that I can't pass pjsip_rx_data 
structure to another thread for asynchronous processing. So I have 
something like this:

static void on_pager(...){
                ....
                ....
                pjsip_msg_body* cloned_msg = &pjsip_msg_body_clone;
                ....
                ....
          }

In another shared lib.(libpjsipreceiveim.so), I tried to retrieve the 
data sent in the IM session, basically HTTP URL. I have something like this:

char *sipreceiveimonly(){
                pj_thread_desc desc;
                pj_thread_t *thread;
                ....
                ....
                pjsip_msg_body* cloned_msg;
               
                return cloned_msg->data;
                                     }

The returned values are passed to my XPCOMs in FF which implement those 
shared lib.

The problem is that I couldn't retrieve the URL(I guess it's in 
"cloned_msg->data") on calling *sipreceiveimonly(). This is a 
provisional solution, I planned to pass such info via SIP INFO rather 
than IM in the nearest future.


How can I retrieve the IM data (i.e.URL)??
Guess I am missing something.

Yours,
Mike.
Benny Prijono wrote:
> On 2/19/08, Adeyeye Oluwasegun Michael <micadeyeye at crg.ee.uct.ac.za> wrote:
>   
>> Hi Benny,
>> I am currently integrating PJSIP into Mozilla Firefox in order to achieve
>> HTTP Session Mobility using SIP. My research intention is to transfer web
>> sessions between web browsers using SIP. Though I planned sending the
>> data(contents of cookies, rewritten URL, hidden element) via SIP INFO, at
>> present, I am sending the data as IM(Instant Messaging).
>>
>>     
>
> Hi Adeyeye,
>
> Interesting! I didn't know that we can use SIP for that.
>
>   
>> While I have accomplished the task of transferring URL from a browser's
>> addressbar to another as IM data using pjsua_im_send(), I haven't been
>> able to retrieve the data at the destination browser. I wish you had a
>> function like pjsua_im_send() that can help retrieve such data. I tried
>> couple of things such as trying to implement the callback, getting value
>> of "msg" attribute in the IM message struct pjsua_msg_data/pjsip_rx_data
>> but all were futile.
>>     
>
> Sorry I don't quite get you. Did you want to retrieve a particular
> message element (such as header or message body) from an incoming IM?
> Will this help: http://trac.pjsip.org/repos/wiki/FAQ#pjsip_event ?
>
> cheers,
>  -benny
>
>
>   
>> Do you know if such data is stored in variable not listed in the PJSUA
>> module/API?
>>
>> Your contributions are welcome.
>>
>> Mike.
>>
>>
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>>
>>     
>
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