[PHP-DEV] PHP 4.0 Bug #7685: File Upload Fails with Headers in Unexpected Order From: gsohl <email protected>
Date: 11/07/00

From: gsohl <email protected>
Operating system: Windows NT 4.0 Workstation
PHP version: 4.0.3pl1
PHP Bug Type: *General Issues
Bug description: File Upload Fails with Headers in Unexpected Order

The code for implementing RFC1867 with a file upload (in rfc1867.c) expects headers to be in the order:

--Boundary...........
Content-Disposition: attachment; name="userfile"; filename="boot.ini"
Content-Type: application/octet-stream;

file data.....
--Boundary...........

However, RFC1867 does not enforce this ordering. Some clients generate the Content-Type header prior to the Content-Disposition header which causes the file upload to fail, without any error message being generated.

I discovered this using a set up components from Dev-Soft (www.dev-soft.com) in Borland's Delphi. Their MIME component generates the multi-part form data for a file with Content-Type before the Content-Disposition. After beating my head against the wall for a few hours I finally figured out where the problem was. Fortunatly I was able to circumvent their ordering, although it made my code pretty kludgy. 

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Edit Bug report at: http://bugs.php.net/?id=7685&edit=1

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