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From: Thomas Rast <trast@student.ethz.ch>
To: Jeff King <peff@peff.net>
Cc: <git@vger.kernel.org>, <jstpierre@mecheye.net>
Subject: URL decoding changed semantics of + in URLs
Date: Fri, 23 Jul 2010 15:18:30 +0200	[thread overview]
Message-ID: <201007231518.31071.trast@student.ethz.ch> (raw)

Hi Jeff

As pointed out by Jasper St. Pierre on #git, it is no longer possible
to clone

  git://git.gnome.org/gtk+

because your 9d2e942 (decode file:// and ssh:// URLs, 2010-05-23)
decodes + characters in URLs to spaces in the http style.  It was
later fixed by ce83eda (url.c: "<scheme>://" part at the beginning
should not be URL decoded, 2010-06-23) but the later part of the url
still decodes + as space.

The tests that go along with the commit make it clear that it was an
intended change.  But the interesting thing is, I cannot find any
reference in any RFC that + must have this meaning.  In particular,

  http://www.ietf.org/rfc/rfc2396.txt

doesn't say much about + and the only escaping defined is the usual
%xx style.  So is there a standard that mandates this, or was it just
a well-meaning but unnecessary backwards incompatible change?

-- 
Thomas Rast
trast@{inf,student}.ethz.ch

             reply	other threads:[~2010-07-23 13:19 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-23 13:18 Thomas Rast [this message]
2010-07-23 13:21 ` URL decoding changed semantics of + in URLs Thomas Rast
2010-07-23 14:10 ` Ævar Arnfjörð Bjarmason
2010-07-23 14:25   ` Jasper St. Pierre
2010-07-23 21:23   ` [PATCH] Do not unquote + into ' ' " Thomas Rast
2010-07-23 22:20     ` Ævar Arnfjörð Bjarmason
2010-07-23 22:26     ` Junio C Hamano
2010-07-23 23:04       ` Thomas Rast
2010-07-24 14:49         ` [PATCH v2] " Thomas Rast
2010-07-31 21:18           ` Jasper St. Pierre
2010-07-31 21:33             ` Thomas Rast
2010-08-06 10:46               ` Ralf Ebert
2010-07-26 15:40 ` URL decoding changed semantics of + " Jeff King
2010-07-26 17:57   ` Ævar Arnfjörð Bjarmason
2010-07-26 18:22     ` Jasper St. Pierre
2010-07-26 18:30       ` Matthieu Moy
2010-07-26 18:35       ` Ævar Arnfjörð Bjarmason
2010-07-26 18:44         ` Jasper St. Pierre

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