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authorLibravatar Jakub Narebski <jnareb@gmail.com>2011-06-30 11:39:20 +0200
committerLibravatar Junio C Hamano <gitster@pobox.com>2011-06-30 11:26:39 -0700
commit86afbd02c890eca08424174b7d6e583af38b0363 (patch)
treee4efdf51b35e86e67aef5f3c01dfa1a966e46db4
parentgitweb: Fix usability of $prevent_xss (diff)
downloadtgif-86afbd02c890eca08424174b7d6e583af38b0363.tar.xz
gitweb: Serve text/* 'blob_plain' as text/plain with $prevent_xss
One of mechanism enabled by setting $prevent_xss to true is 'blob_plain' view protection. With XSS prevention on, blobs of all types except a few known safe ones are served with "Content-Disposition: attachment" to make sure they don't run in our security domain. Instead of serving text/* type files, except text/plain (and including text/html), as attachements, downgrade it to text/plain. This way HTML pages in 'blob_plain' (raw) view would be displayed in browser, but safely as a source, and not asked to be saved. Signed-off-by: Jakub Narebski <jnareb@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rwxr-xr-xgitweb/gitweb.perl10
1 files changed, 9 insertions, 1 deletions
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index c5548875ff..1b97172ca8 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -4752,7 +4752,15 @@ sub git_blob_plain {
# want to be sure not to break that by serving the image as an
# attachment (though Firefox 3 doesn't seem to care).
my $sandbox = $prevent_xss &&
- $type !~ m!^(?:text/plain|image/(?:gif|png|jpeg))(?:[ ;]|$)!;
+ $type !~ m!^(?:text/[a-z]+|image/(?:gif|png|jpeg))(?:[ ;]|$)!;
+
+ # serve text/* as text/plain
+ if ($prevent_xss &&
+ $type =~ m!^text/[a-z]+\b(.*)$!) {
+ my $rest = $1;
+ $rest = defined $rest ? $rest : '';
+ $type = "text/plain$rest";
+ }
print $cgi->header(
-type => $type,