[wp-trac] [WordPress Trac] #40175: Upload Validation / MIME Handling

[WordPress Trac]

#40175: Upload Validation / MIME Handling
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 Reporter:  blobfolio                            |       Owner:  (none)
     Type:  defect (bug)                         |      Status:  assigned
 Priority:  high                                 |   Milestone:  Future
                                                 |  Release
Component:  Media                                |     Version:  4.7.3
 Severity:  major                                |  Resolution:
 Keywords:  has-unit-tests early needs-dev-note  |     Focuses:
                                                 |  administration
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Comment (by jesin):

 Today I faced an issue while uploading a docm file because fileinfo
 returns ''application/vnd.openxmlformats-
 officedocument.wordprocessingml.document'' as the MIME type while
 WordPress returns ''application/vnd.ms-word.document.macroEnabled.12''.

 I had to use the following workaround:

 {{{
 add_filter( 'upload_mimes', function( $mime_types ) {
         $mime_types['docm'] = 'application/vnd.openxmlformats-
 officedocument.wordprocessingml.document';
         return $mime_types;
 }, 1, 1 );
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/40175#comment:74>
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