[Spice-devel] [spice-gtk v1] file-xfer: Fix bad filename encoding

Frediano Ziglio fziglio at redhat.com
Wed Apr 12 15:43:14 UTC 2017


> 
> On Wed, Apr 12, 2017 at 10:46:58AM -0400, Frediano Ziglio wrote:
> > > 
> > > On Wed, Apr 12, 2017 at 03:55:04PM +0200, Victor Toso wrote:
> > > > I'm not specialist on possible problems but although ascii is
> > > > compatible
> > > > with utf8 it might become a problem to not have a standard well defined
> > > > in the future although Marc-André said it should be UTF-8.
> > > 
> > > If you mandate UTF-8 in the protocol, you probably cause a regression if
> > > your client has an iso8859-1 filename, and you dnd that to a VM where
> > > you also expect the iso8859-1 filename. In this day and age, this is
> > > just a corner case, but I'm not sure mandating UTF8 conversion of
> > > filenames before dnd'ing them is not going to cause issue either.
> > > 
> > > Christophe
> > > 
> > 
> > That's why another alternative I wrote was to get the _byte_string of
> > normal name.
> > Note however that passing the binary is not possible on Windows
> > as utf16 is a completely different beast (maybe glib does already
> > some transformation at least to make it C compatible).
> > Yes, invalid encoding is the same stuff that worry me, on the
> > other hand current code seems broken with the utf8 which is the
> > default on most Unix now.
> 
> My understanding is that we used to be using g_file_get_basename,
> switching  back to it would give us an encoding-less byte array,
> which probably has its share of corner cases, but worked well enough so
> far.
> 
> Christophe
> 

I remember I did something with file names in a long past.. but maybe
was Windows agent.

By the way, the change is in "file-xfer: introduce functions to init task async"
(4647ac9a2a72c98b6841180ccf5f8dfa61c6cce8) but I cannot find any specific
note about this basename -> display name change.
No idea why was done.

Frediano


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