https://bugzilla.wikimedia.org/show_bug.cgi?id=20924
Summary: certain mac word (2000) .doc files are incorrectly
detected as application/zip
Product: MediaWiki
Version: 1.14.0
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: Normal
Component: Uploading
AssignedTo: wikibugs-l@lists.wikimedia.org
ReportedBy: ni...@symbian.org
I have a downstream bug that I've been working on for an MW 1.14 installation.
Certain users can't upload most of their MS Word documents. These are NOT the
.docx XML-based formats but the older type. It turns out that users would
receive the error even with a BLANK document saved. I've attached an example of
this for people to reproduce the bug. The error received is the message:
"The file is corrupt or has an incorrect extension. Please check the file and
upload again."
Debugging locally has shown that these files are being identified as:
mime: <application/zip> extension: <doc
Clearly with MIME-type/extension verification turned on this will fail giving
the error they see. The question is why is this being found as
"application/zip"?
(Furthermore, the workaround I read about / had planned, using
$wgMimeDetectorCommand to externally check the MIME-type, is no good as
MimeMagic::guessMimeType() calls doGuessMimeType FIRST, and any (false)
positives will then NOT call detectMimeType(), which seems to work correctly)
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