Re: gitweb: using quotemeta

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Jakub Narebski <jnareb@xxxxxxxxx> writes:

> But you forget that in HTTP headers, to be more exact in
> 	Content-Disposition: inline; filename="<filename>"
> header, the quote '"' and end-of-line '\n' characters in <filename>
> are treated specially. So you need to quote somehow at least those
> two characters.

True, but untrue.  This is just a suggestion so we do not _have_
to quote.  We only need to avoid spitting out dq and lf
literally.  We could even just do something like the attached if
we wanted to:

	s/[^ -~]+/?/g	;# replace each sequence of bytes outside
        		 # ' ' to '~' range to a '?'

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 44991b1..e7202ee 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -2651,7 +2651,7 @@ sub git_blob_plain {
 	# save as filename, even when no $file_name is given
 	my $save_as = "$hash";
 	if (defined $file_name) {
-		$save_as = $file_name;
+		($save_as = $file_name) =~ s/[^ -~]+/?/g;
 	} elsif ($type =~ m/^text\//) {
 		$save_as .= '.txt';
 	}
@@ -2830,6 +2830,7 @@ sub git_snapshot {
 	}
 
 	my $filename = basename($project) . "-$hash.tar.$suffix";
+	$filename =~ s/[^ -~]+/?/g;
 
 	print $cgi->header(
 		-type => 'application/x-tar',
@@ -3139,6 +3140,7 @@ sub git_blobdiff {
 		}
 
 	} elsif ($format eq 'plain') {
+		$file_name =~ s/[^ -~]+/?/g;
 		print $cgi->header(
 			-type => 'text/plain',
 			-charset => 'utf-8',
@@ -3241,6 +3243,7 @@ sub git_commitdiff {
 		my $refs = git_get_references("tags");
 		my $tagname = git_get_rev_name_tags($hash);
 		my $filename = basename($project) . "-$hash.patch";
+		$filename =~ s/[^ -~]+/?/g;
 
 		print $cgi->header(
 			-type => 'text/plain',


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