[wp-trac] [WordPress Trac] #11946: Ensure image MIME type matches extension

[WordPress Trac]

#11946: Ensure image MIME type matches extension
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 Reporter:  Viper007Bond             |        Owner:  Viper007Bond
     Type:  defect (bug)             |       Status:  accepted    
 Priority:  normal                   |    Milestone:  3.0         
Component:  Upload                   |      Version:  3.0         
 Severity:  minor                    |   Resolution:              
 Keywords:  has-patch needs-testing  |  
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Changes (by Viper007Bond):

  * keywords:  needs-patch => has-patch needs-testing
  * status:  assigned => accepted


Comment:

 `11946.4.patch` introduces `wp_check_filetype_and_ext()` which does what
 `wp_check_filetype()` does, but then goes on to attempt to validate the
 type and extension. If it determines that the extension doesn't match what
 the type truly is, then it'll return `proper_filename` as a part of it's
 returned array.

 I've modified the standard upload function, the sideload function, and the
 bits function to make use of this new function.

 I have only tested this using the standard upload process, not sideload or
 bits.

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Ticket URL: <http://core.trac.wordpress.org/ticket/11946#comment:19>
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