[issue6972] zipfile.ZipFile overwrites files outside destination path

[Thomas W. Barr]

Thomas W. Barr <twb at rice.edu> added the comment:

Uploading patch. This actually should fix my theoretical symlink bug
since realpath() properly follows symlinks. The only thing that I
haven't been able to test is the behavior of realpath() on
case-insensitive operating systems. This should do the right thing, the
path should be normalized, but can someone confirm this?

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Added file: http://bugs.python.org/file15003/zipfile-6972-patch.diff

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