[Dev] Which Com are used to implement services required by WebAPI. - MessagePort

Rafał Krypa r.krypa at samsung.com
Thu May 15 16:01:48 GMT 2014

On 2014-05-15 10:19, Amarnath Valluri wrote:
> On 05/15/2014 10:27 AM, Patrick Ohly wrote:
>> On Thu, 2014-05-15 at 10:09 +0300, Amarnath Valluri wrote:
>>> Hi Domining,
>>> MessagePort WebAPI on Tizen IVI is not using '
>>> platform/core/appfw/message-port', instead it uses :
>>> platfrom/ivi/message-port, which is peer-to-peer DBus based
>>> implementation.
>> Out of curiosity, and because it is relevant for the security
>> discussion: can you describe the data flow from Web App through
>> Crosswalk to a native app listening on a message port? In particular,
>> which Crosswalk process is contacting the native side, which Smack label
>> does it have, and where is D-Bus involved in this?
> The backend messageport daemon works just as a proxy between two applications.
> All Tizen applications which required to exchange data via MessagePort will open a connection with the daemon.
> It treats both Native and Web applications same.
> In crosswalk the xwalk extension process requests(via peer-to-peer dbus socket) the 'messageportd'
> on behalf of web app to send message-data to peer(running) application. Then the messageport daemon
> finds the right 'client' based on the requested 'app-id', and signals the app with the message data.

Does messageport implement any kind of policy, deciding which application is able to contact which?
If there is, it should probably switch to use Cynaraas a source of policy.If there isn't such thing, I'd like to suggest a discussion about needs and possible ways for implementing it.
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