[wp-trac] [WordPress Trac] #48960: failed to open dir: No such file or directory in WIndows

[WordPress Trac]

#48960: failed to open dir: No such file or directory in WIndows
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 Reporter:  eden159            |       Owner:  (none)
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  Media              |     Version:  5.3.1
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:
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Comment (by azaozz):

 Looking at this further, it seems caused by unreadable temp directory when
 using `wp_tempnam()`.

 In addition `wp_tempnam()` seem to be called from a plugin that is
 (perhaps) writing couple of files to the disk on every wp-admin page load.
 Not sure why this is needed but it's a pretty bad performance.

 To fix this and similar cases perhaps the last filename check in
 `wp_unique_filename()` should be done only when the file is going to be in
 the uploads dir. In addition, perhaps `scandir()` should be silenced as
 there might be cases where it will fail regardless.

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Ticket URL: <https://core.trac.wordpress.org/ticket/48960#comment:8>
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