[wp-trac] [WordPress Trac] #45615: CSV Mime Type fails upload

[WordPress Trac]

#45615: CSV Mime Type fails upload
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 Reporter:  Kloon                     |       Owner:  joemcgill
     Type:  defect (bug)              |      Status:  assigned
 Priority:  normal                    |   Milestone:  5.0.3
Component:  Upload                    |     Version:  5.0.1
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:
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Comment (by tellyworth):

 attachment:45615.5.diff moves the unit tests for vtt to a separate
 function, and adds tests for dfxp and json. Those types are unsupported by
 default, but can be added by filtering `upload_mimes` - see
 `test_wp_check_filetype_and_ext_unsupported_filtered()` for a trivial
 example. I think this is the right approach for obscure file types that
 don't need to be supported by core by default.

 However, note that the test.dfxp and test.json cases currently fail their
 filtered tests, meaning adding those types to `upload_mimes` via a filter
 is not sufficient to allow them. We'd need either less strict logic or
 specific exceptions for them in the text/plain block in
 `wp_check_filetype_and_ext()`. I haven't found a simple solution.

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Ticket URL: <https://core.trac.wordpress.org/ticket/45615#comment:39>
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