[ckan-dev] Handling of text based files with unknown extensions

Fri Jun 27 00:11:21 UTC 2014

Aaron,

As Alex already pointed out, this is a known bug and fixed on master. It's
marked to be backported to CKAN 2.2, but wasn't yet. In the mean time, you
could cherry-pick its commit into your local branch. It's small enough that
shouldn't create any problems.

Cheers,

2014-06-26 20:39 GMT-03:00 Alex (Maxious) Sadleir <maxious at gmail.com>:

> File extensions that are not recognised can cause server errors, a fix
> should be available soon (or try some of the patches on
> https://github.com/ckan/ckan/pull/1534 )
>
> On Fri, Jun 27, 2014 at 9:24 AM, Aaron McGlinchy
> <McGlinchyA at landcareresearch.co.nz> wrote:
> > Hi, I have encountered an issue whereby a user uploaded a nexus file (
> http://en.wikipedia.org/wiki/Nexus_file) which is in fact a text file
> with the extension .nex (or sometimes .nxs).  This unknown file extension
> caused CKAN to spit the dummy, returning an internal server error.
> >
> > In testing further I found that any txt file that is uploaded with an
> extension that CKAN does not recognise out of the box (e.g. as per
> http://docs.ckan.org/en/ckan-2.2/data-viewer.html#text-preview) causes
> this error.  In normal CKAn behaviour an unrecognised file format triggers
> a save dialog box if clicked on, but for these files which are underlying
> txt format but varying (undefined) extension they cause an error.
> >
> > I uploaded an example to the CKAN demo site
> http://demo.ckan.org/dataset/aarontests  so you can see what happens.
> >
> > I know that we can add extra extensions to ckan.preview.loadable to
> ensure the nex/nxs files get handled in future, but is there a way for as
> yet unknown extensions that people may use/upload with text files to be
> treated as per any other unknown format so as to not trigger the server
> error?
> >
> > Thanks
> > Aaron
> >
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