On 20-Nov-05 11:04:30 Francois PIETTE wrote: >>>>>The question is: Should the HTTP client component implement this >>>>>relative >>>>>path removal algorithm ? >>>> >>>> If it is formally valid yes. But it could be tricky to do because >>>> sometimes the relative path could be a little "strange" :-) >> >>>Can you give and example of "strange" relative path ? >> >> ../../adir/subdir/../anothersubdir/./etc/../../where_I_am >> >> This can happen when the path is "composed". I don't know if it is >> happen in the web, I followed a similar discussion in the development >> of an OS so I "traslated" it for the web. >> BTW is the "." allowed?
>Yes, a "." is allowed but has no effect. The algorithm to absolutize such >relative path is not very complex. You have to prepend the current path >before processing. Then simply replace all "/./" by "/", then remove ending >"/.", then parse from left to right, each time you find a "subdir/..", you >simply delete it. Until there is no more "/.." in the path. I know that the algorithm is not complex :-) I want only point out that it is possible that the relative parte could be even in the middle and not only at start. Bye, Maurizio. -- To unsubscribe or change your settings for TWSocket mailing list please goto http://www.elists.org/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
