Re: [Rails] How to communicate a web app with destkop app?

@Colin, this is possible with ActiveX (Windows + IE only)

http://rosettacode.org/wiki/Execute_a_system_command#JavaScript

In the Firefox I am not sure but I think it is possible if the user explicitly allow, maybe with signed script or some extended permission

https://wiki.mozilla.org/Apps/Security#Extended_permissions

--
Fernando Almeida
fernandoalmeida.net
adminfinanceiro.com.br

2013/9/25 Colin Law <clanlaw@googlemail.com>

On 25 September 2013 05:09, Ricardo do Valle <ricardodovalle@gmail.com> wrote:
> @Colin the rails server is running in a VPS with nginx and unicorn.

So the server is running on a different computer to the browser, and
you want a page in the browser to interact with an app on the PC
running the browser.  I believe this is not possible, and nor should
it be possible.  Would you want a web page to be able to affect
applications running on the PC?  Imagine what a malicious website
could do if this were possible.

Colin

>
> @Fernando, thank you very much, but it is not alternative for this project,
> i will study the chrome devs API for a future and another project, have you
> used already?
>
> I am looking for a way to create sockets and controls (state machine) from a
> rails app or another way to do that.
>
>
>
>
> On Tue, Sep 24, 2013 at 5:08 PM, Colin Law <clanlaw@googlemail.com> wrote:
>>
>> On 24 September 2013 19:44, Ricardo do Valle <ricardodovalle@gmail.com>
>> wrote:
>> > Hi everyone,
>> >
>> > I need that my web app talk with a dektop application.
>>
>> Which computer is the web application running on (not the browser, the
>> rails server)?
>>
>> Colin
>>
>> >
>> > User case: a user click a button on the page, and this button send a
>> > command
>> > to the desktop app and wait for the answer from destkop app or timeout.
>> >
>> > I am using Rails 4 and Qt/C++, but it is not mandatory to use Qt/C++.
>> > The desktop app is used to talk with computer usb port.
>> >
>> > Anyone hava any tips or help?
>> > Thanks
>> >
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> --
> Ricardo do Valle
>
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