[Python-Dev] Path object design

Steve Holden steve at holdenweb.com
Sat Nov 4 18:16:51 CET 2006

Michael Urman wrote:
> On 11/3/06, Steve Holden <steve at holdenweb.com> wrote:
>> Having said this, Andrew *did* demonstrate quite convincingly that the
>> current urljoin has some fairly egregious directory traversal glitches.
>> Is it really right to punt obvious gotchas like
>>  >>>urlparse.urljoin("http://blah.com/a/b/c", "../../../../")
>> 'http://blah.com/../../'
> Ah, but how do you know when that's wrong? At least under ftp:// your
> root is often a mid-level directory until you change up out of it.
> http:// will tend to treat the targets as roots, but I don't know that
> there's any requirement for a /.. to be meaningless (even if it often
> is).
I'm darned if I know. I simply know that it isn't right for http resources.

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