[RFC/PATCH 1/3] gitweb: improve snapshot error handling

[Mark Rada <marada@uwaterloo.ca>]

Ok, this is just a resend of the first patch in my set from
earlier, but with some of the commit message reworded, namely
the subject (as suggested by Sam Vilain).

--
Mark Rada (ferrous26)
marada@uwaterloo.ca


--->8---
In the second block of checks to validate a snapshot request, the last
check is never executed because the second last check is a superset of
the last check.

This change will switch the order of the last two checks, it has the
advantage of giving clients a more specific reason why they cannot get
a snapshot format if the format they have chosen is disabled.

Signed-off-by: Mark Rada <marada@uwaterloo.ca>
---
 gitweb/gitweb.perl |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 4a42f61..7068db2 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -5174,10 +5174,10 @@ sub git_snapshot {
 		die_error(400, "Invalid snapshot format parameter");
 	} elsif (!exists($known_snapshot_formats{$format})) {
 		die_error(400, "Unknown snapshot format");
-	} elsif (!grep($_ eq $format, @snapshot_fmts)) {
-		die_error(403, "Unsupported snapshot format");
 	} elsif ($known_snapshot_formats{$format}{'disabled'}) {
 		die_error(403, "Snapshot format not allowed");
+	} elsif (!grep($_ eq $format, @snapshot_fmts)) {
+		die_error(403, "Unsupported snapshot format");
 	}
 
 	if (!defined $hash) {
-- 
1.6.4