[Sugar-devel] Web activities on XO-4
Gonzalo Odiard
gonzalo at laptop.org
Tue Sep 24 14:45:46 EDT 2013
Thanks James.
In other news, I have tried add a simple web server,
but apparently I couldn't make run webkit and the webserver together,
even using threads.
Gonzalo
On Thu, Sep 19, 2013 at 7:46 PM, James Cameron <quozl at laptop.org> wrote:
> I just love sockets.
>
> But that seems wrong to me; to open a socket to get a port number and
> then shut it down. Presumably later code would open another socket
> and bind it to the port?
>
> If you truly need to do it that way, there's one more thing to add
> before the call to bind():
>
> sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
>
> This is so that the same port number can be re-used shortly
> afterwards. Otherwise the later code would see an address in use
> error.
>
> On Thu, Sep 19, 2013 at 08:56:31AM -0300, Gonzalo Odiard wrote:
> > A free port can be get using:
> >
> > # Get a free socket
> > sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM, 0)
> > sock.bind(('', 0))
> > sock.listen(socket.SOMAXCONN)
> > _ipaddr, self.port = sock.getsockname()
> > sock.shutdown(socket.SHUT_RDWR)
> > logging.error('Using port %d', self.port)
> >
> > Should be good use 0.0.0.0 as ip instead of localhost, to avoid [1]
> > To serve the files python already have HTTPServer.
> >
> > Gonzalo
> >
> > [1] http://dev.laptop.org/ticket/12479
> >
> >
> > On Wed, Sep 18, 2013 at 9:39 PM, Daniel Narvaez <dwnarvaez at gmail.com>
> wrote:
> >
> > Just a directory. It needs to be one server per activity though, so
> that
> > the different port gives us a different origin.
> >
> >
> > On 18 September 2013 23:32, Gonzalo Odiard <gonzalo at laptop.org>
> wrote:
> >
> > Ok. Thanks.
> > The web server need have something special or just serve a
> directory is
> > enough?
> >
> > Gonzalo
> >
> >
> > On Wed, Sep 18, 2013 at 6:22 PM, Daniel Narvaez <
> dwnarvaez at gmail.com>
> > wrote:
> >
> > Well, there are several html features which depend on each
> activity
> > having their own origin, for example local storage.
> >
> >
> > On Wednesday, 18 September 2013, Gonzalo Odiard wrote:
> >
> > No, why is needed use a local web server instead of
> > the use of the proposed solution (use '
> > enable-file-access-from-file-uris' )
> >
> > Gonzalo
> >
> >
> > On Wed, Sep 18, 2013 at 6:06 PM, Daniel Narvaez <
> > dwnarvaez at gmail.com> wrote:
> >
> > You mean why the http server would be a problem?
> >
> >
> > On Wednesday, 18 September 2013, Gonzalo Odiard
> wrote:
> >
> > This is for the potential security risk of
> opening
> > files outside of the activity directory,
> > or because can be a problem with different
> activities
> > running at the same time
> > or multiple instances of the same activity?
> >
> > Gonzalo
> >
> >
> > On Wed, Sep 18, 2013 at 5:46 PM, Daniel Narvaez <
> > dwnarvaez at gmail.com> wrote:
> >
> > You could put an http server in the
> activity...
> > Sucks but I'm not sure there is a better way
> :/
> >
> >
> > On Wednesday, 18 September 2013, Manuel
> Quiñones
> > wrote:
> >
> > I finally got web activities working on
> XO-4,
> > in the AU build
> > published yesterday [1] . I did it by
> > modifying webactivities.py to
> > use WebKitGTK1 instead of v2. The
> changes are:
> >
> >
> https://github.com/manuq/sugar-toolkit-gtk3-1/
> > compare/webacts-webkit1
> >
> > I tried it with Gears Activity v3, and is
> > working. It stores the data
> > and the metadata. So it is
> communicating with
> > the shell just fine.
> >
> > The touchscreen is not responding very
> well, at
> > least in this
> > activity. I can tap buttons, but I can
> barely
> > drag to move a gear or
> > to draw one. The dragging seems to be
> > cancelled in the middle of the
> > action. Mouse input works fine.
> >
> > Also as expected, the icons look small
> in the
> > XO screen because I need
> > to adapt the theme. But that is an easy
> one,
> > just changing the
> > CEL_SIZE variable in the LESS file to
> create
> > another CSS for the XO
> > screen DPI, and adding a CSS media query
> > selector to the HTML. I'll
> > provide a patch to sugar-web-template
> and will
> > update my web
> > activities.
> >
> > The inspector is not working, it does not
> > display. It shoud display
> > by Ctrl+Shift+I or by right-click ->
> "Inspect
> > element". There is no
> > error in the logs and the API is there
> [2], but
> > nothing is happening.
> > Surprisingly, JavaScript console logs go
> to the
> > activity log. We are
> > missing that in master.
> >
> > I managed to keep the activity:// scheme
> that
> > we need for the
> > same-origin policy, but I still had to
> add the
> > setting
> > 'enable-file-access-from-file-uris' to
> > workaround the cross-site
> > requests. I can't find a way to
> register the
> > URI scheme in WK1, so I
> > added a big FIXME.
> >
> > [1]
> http://build.laptop.org.au/xo/os/sugar-100/
> > build-21/
> > [2]
> http://webkitgtk.org/reference/webkitgtk/
> > stable/WebKitWebInspector.html
> >
> >
> > --
> > .. manuq ..
> >
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> >
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> >
> >
> >
> > --
> > Daniel Narvaez
> >
> >
> >
> _______________________________________________
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> >
> http://lists.sugarlabs.org/listinfo/sugar-devel
> >
> >
> >
> >
> >
> >
> > --
> > Daniel Narvaez
> >
> >
> >
> >
> >
> >
> > --
> > Daniel Narvaez
> >
> >
> >
> >
> >
> >
> >
> > --
> > Daniel Narvaez
> >
> >
>
> > _______________________________________________
> > Sugar-devel mailing list
> > Sugar-devel at lists.sugarlabs.org
> > http://lists.sugarlabs.org/listinfo/sugar-devel
>
>
> --
> James Cameron
> http://quozl.linux.org.au/
>
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