[wp-trac] [WordPress Trac] #40609: Cannot register an application/foo+xml mime type without also registering application/xml

[WordPress Trac]

#40609: Cannot register an application/foo+xml mime type without also registering
application/xml
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 Reporter:  paulsowden    |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Upload        |    Version:  trunk
 Severity:  normal        |   Keywords:
  Focuses:                |
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 In wp_check_filetype_and_ext() there is a block that uses finfo_file to
 sniff the mime type of a file. When registering an application/foo+xml
 type the returned type from finfo_file is application/xml so to allow
 application/foo+xml using the upload_mimes filter one must also allow
 application/xml otherwise this real_mime check fails.

 It seems like the check should allow the original mime type if the
 real_mime is application/xml and the $mime is of the form
 application/foo+xml

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Ticket URL: <https://core.trac.wordpress.org/ticket/40609>
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