New submission from Dave Chambers <dlchamb...@aol.com>: The current mimetypes.read_windows_registry() enums the values under HKCR\MIME\Database\Content Type However, this is the key for mimetype to extension lookups, NOT for extension to mimetype lookups. As a result, when >1 MIME types are mapped to a particular extension, the last-found entry is used. For example, both "image/png" and "image/x-png" map to the ".png" file extension. Unfortunately, what happens is this code finds "image/png", then later finds "image/x-png" and this steals the ".png" extension.
The solution is to use the correct regkey, which is the HKCR root. This is the correct location for extension-to-mimetype lookups. What we should do is enum the HKCR root, find all subkeys that start with a dot (i.e. file extensions), then inspect those for a 'Content Type' value. The attached ZIP contains: mimetype_flaw_demo.py - this demonstrates the error (due to wrong regkey) and my fix (uses the correct regkey) mimetypes_fixed.py - My suggested fix to the standard mimetypes.py module. ---------- components: Windows files: mimetype_flaw_demo.zip messages: 164167 nosy: dlchambers priority: normal severity: normal status: open title: mimetypes.read_windows_registry() uses the wrong regkey, creates wrong mappings type: behavior versions: Python 2.7 Added file: http://bugs.python.org/file26180/mimetype_flaw_demo.zip _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue15207> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
