id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc
22160,Etags served by ms-files.php not specific enough,xiffy,,"Today I was tracking an Etag issue we had where different versions of images uploaded to wordpress had the same etags. I first looked at apache and reconfigured it to serve filesize mtime etags. To no avail.
When investigating further i discovered that uploaded files get an etag from ms-files.php (line 57)

{{{
$etag = '""' . md5( $last_modified ) . '""';
}}}

which to my humble opinion should be something like:

{{{
$etag = '""' . md5( $last_modified . filesize($file)) . '""';
}}}

that way, images of different formats, created at upload time, which share the same mtime on a fast machine still get different etags.",defect (bug),new,normal,3.6,Multisite,3.3.2,normal,,has-patch,