threads / patch / 15962

patchgitweb: Better processing format string in custom links in navbar

Subject: [PATCH/RFR&A] gitweb: Better processing format string in custom links in navbar

## tl;dr

One message between Oct 19, 2008 and Oct 19, 2008. Diffs are folded; open one to read it.

replies: 0people: 1as markdown or json

Junio C Hamano· Oct 19, 2008, 07:07 UTC · lore

I was not around when this was posted and discussed; Shawn's note says this is waiting for "some sort of response from Pasky", hence this request for review and ack. It still is parked in 'pu'.

-- >8 --

Make processing format string in custom links in action bar ('actions' feature) more robust. Now there would be no problems if one of expanded values (for example project name, of project filename) contains '%'; additionally format string supports '%' escaping by doubling, i.e. '%%' expands to '%'.

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
---
 gitweb/gitweb.perl |   19 ++++++++++++-------
 1 files changed, 12 insertions(+), 7 deletions(-)
Show changes to gitweb/gitweb.perl +12 −7
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 1116800..cc6edbe 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -290,10 +290,10 @@ our %feature = (
 
 	# The 'default' value consists of a list of triplets in the form
 	# (label, link, position) where position is the label after which
-	# to inster the link and link is a format string where %n expands
+	# to insert the link and link is a format string where %n expands
 	# to the project name, %f to the project path within the filesystem,
 	# %h to the current hash (h gitweb parameter) and %b to the current
-	# hash base (hb gitweb parameter).
+	# hash base (hb gitweb parameter); %% expands to %.
 
 	# To enable system wide have in $GITWEB_CONFIG e.g.
 	# $feature{'actions'}{'default'} = [('graphiclog',
@@ -2866,14 +2866,19 @@ sub git_print_page_nav {
 	$arg{'tree'}{'hash_base'} = $treebase if defined $treebase;
 
 	my @actions = gitweb_check_feature('actions');
+	my %repl = (
+		'%' => '%',
+		'n' => $project,         # project name
+		'f' => $git_dir,         # project path within filesystem
+		'h' => $treehead || '',  # current hash ('h' parameter)
+		'b' => $treebase || '',  # hash base ('hb' parameter)
+	);
 	while (@actions) {
-		my ($label, $link, $pos) = (shift(@actions), shift(@actions), shift(@actions));
+		my ($label, $link, $pos) = splice(@actions,0,3);
+		# insert
 		@navs = map { $_ eq $pos ? ($_, $label) : $_ } @navs;
 		# munch munch
-		$link =~ s#%n#$project#g;
-		$link =~ s#%f#$git_dir#g;
-		$treehead ? $link =~ s#%h#$treehead#g : $link =~ s#%h##g;
-		$treebase ? $link =~ s#%b#$treebase#g : $link =~ s#%b##g;
+		$link =~ s/%([%nfhb])/$repl{$1}/g;
 		$arg{$label}{'_href'} = $link;
 	}
 
-- 
1.6.0.2.767.g8f0e

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