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Do not unquote + into ' ' in URLs

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Since 9d2e942 (decode file:// and ssh:// URLs, 2010-05-23) the URL
logic unquotes escaped URLs.  For the %2B type of escape, this is
conformant with RFC 2396.  However, it also unquotes + into a space
character, which is only appropriate for the query strings in HTTP.
This notably broke fetching from the gtk+ repository.

We cannot just remove the corresponding code since the same
url_decode_internal() is also used by the HTTP backend to decode query
parameters.  Introduce a new argument that controls whether the +
decoding happens, and use it only in the (client-side) url_decode().

Reported-by: Jasper St. Pierre <jstpierre@mecheye.net>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Thomas Rast
2010-07-24 16:49:04 +02:00
committed by Junio C Hamano
parent 64fdc08dac
commit 730220de8b
2 changed files with 14 additions and 7 deletions
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11
url.c
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@@ -67,7 +67,8 @@ static int url_decode_char(const char *q)
return val;
}
static char *url_decode_internal(const char **query, const char *stop_at, struct strbuf *out)
static char *url_decode_internal(const char **query, const char *stop_at,
struct strbuf *out, int decode_plus)
{
const char *q = *query;
@@ -90,7 +91,7 @@ static char *url_decode_internal(const char **query, const char *stop_at, struct
}
}
if (c == '+')
if (decode_plus && c == '+')
strbuf_addch(out, ' ');
else
strbuf_addch(out, c);
@@ -110,17 +111,17 @@ char *url_decode(const char *url)
strbuf_add(&out, url, colon - url);
url = colon;
}
return url_decode_internal(&url, NULL, &out);
return url_decode_internal(&url, NULL, &out, 0);
}
char *url_decode_parameter_name(const char **query)
{
struct strbuf out = STRBUF_INIT;
return url_decode_internal(query, "&=", &out);
return url_decode_internal(query, "&=", &out, 1);
}
char *url_decode_parameter_value(const char **query)
{
struct strbuf out = STRBUF_INIT;
return url_decode_internal(query, "&", &out);
return url_decode_internal(query, "&", &out, 1);
}