[wp-trac] [WordPress Trac] #39550: Some Non-image files fail to upload after 4.7.1

[WordPress Trac]

#39550: Some Non-image files fail to upload after 4.7.1
---------------------------+------------------------
 Reporter:  greatislander  |       Owner:  joemcgill
     Type:  defect (bug)   |      Status:  assigned
 Priority:  normal         |   Milestone:  4.7.2
Component:  Upload         |     Version:  trunk
 Severity:  normal         |  Resolution:
 Keywords:  needs-patch    |     Focuses:
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Comment (by stiofansisland):

 Replying to [comment:8 greatislander]:
 > @stiofansisland Can you download
 [https://gist.github.com/greatislander/ae54e374d32a8fa2f5a59713548eb46c
 this gist] and test one of the CSV files you are trying to upload? From
 your command line, enter:
 >
 >
 > {{{
 > php check-mimetype.php /path/to/upload.csv
 > }}}
 >
 > I can confirm that in my testing of two `.docx` files, one of them
 returns `application/vnd.openxmlformats-
 officedocument.wordprocessingml.document` and uploads to WordPress as
 expected, while the other returns `application/octet-stream` and fails to
 upload.

 On a server where the csv fails i get: "text/plain" (PHP 7.0.8)
 on a server where it works i get: "Fatal error: Call to undefined function
 finfo_open()", probably not helpful but maybe related?(PHP 5.6.22)

 Sample csv: http://ayecode.io/test.csv

 Stiofan

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Ticket URL: <https://core.trac.wordpress.org/ticket/39550#comment:11>
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