[wp-trac] [WordPress Trac] #22363: Accents in attachment filenames should be sanitized

[WordPress Trac]

#22363: Accents in attachment filenames should be sanitized
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 Reporter:  tar.gz                   |       Owner:  mikeschroder
     Type:  defect (bug)             |      Status:  assigned
 Priority:  normal                   |   Milestone:  Future Release
Component:  Media                    |     Version:  3.4
 Severity:  critical                 |  Resolution:
 Keywords:  needs-testing has-patch  |     Focuses:
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Comment (by Vayu):

 I really would love for a fix on this issue. I manage several website and
 use BackupBuddy to create backups. Whenever a file is named with
 diacritics characters or others of the likes (æøå), BackupBuddy will not
 back it up on their sync servers. If I make a manual backup via an FTP
 client, the file names will become corrupt during the download and I will
 not be able to upload the files again to a new or same server.
 Every time I install a new WordPress website, I also install a plugin
 (File Renaming on upload) that will rename the file during upload. This
 works for me. But sometimes I am asked to manage a WordPress website that
 is setup by others, and this is where I have trouble doing backups.

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Ticket URL: <https://core.trac.wordpress.org/ticket/22363#comment:106>
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