[wp-trac] [WordPress Trac] #30204: wp_mail() bug with UTF-8-named attachment

[WordPress Trac]

#30204: wp_mail() bug with UTF-8-named attachment
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 Reporter:  Blue Liquid Designs  |      Owner:
     Type:  defect (bug)         |     Status:  new
 Priority:  normal               |  Milestone:  Awaiting Review
Component:  Mail                 |    Version:  trunk
 Severity:  normal               |   Keywords:
  Focuses:                       |
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 Hi,

 I came across a problem with phpmailer when attaching UTF-8 encoded files
 to the email. The file is correctly sent but the attached filename is
 incorrect.

 For instance, Τεστ1_Τεστ2.pdf becomes 1_Τεστ2.pdf.

 I tracked it down to line 1984 of /wp-includes/class-phpmailer.php, which
 is
 {{{
 $filename = basename($path);
 }}}

 From the research I did, unless the correct locale has been set using
 setlocale() before running basename() problems like this will occur.

 The simple solution would be to run setlocale() for the correct language
 before sending mail, but it's not possible to determine the correct locale
 if you have users who write in multiple languages using the website.

 Since WordPress has been pushing internationalisation hard in the last few
 updates this seems like another good step forward to support multi-
 languages.

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Ticket URL: <https://core.trac.wordpress.org/ticket/30204>
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