From: Eric Wong <e@80x24.org> To: meta@public-inbox.org Subject: [PATCH 24/24] www: require ASCII word characters for CSS filenames Date: Tue, 4 Jun 2019 11:27:48 +0000 Message-ID: <20190604112748.23598-25-e@80x24.org> (raw) In-Reply-To: <20190604112748.23598-1-e@80x24.org> Allowing admins to set non-ASCII CSS filenames could cause unnecessary problems for client and proxies. --- lib/PublicInbox/WWW.pm | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/lib/PublicInbox/WWW.pm b/lib/PublicInbox/WWW.pm index f41f98e..7ea9820 100644 --- a/lib/PublicInbox/WWW.pm +++ b/lib/PublicInbox/WWW.pm @@ -124,7 +124,7 @@ sub call { r301($ctx, $1, $2); } elsif ($path_info =~ m!$INBOX_RE/_/text(?:/(.*))?\z!o) { get_text($ctx, $1, $2); - } elsif ($path_info =~ m!$INBOX_RE/([\w\-\.]+)\.css\z!o) { + } elsif ($path_info =~ m!$INBOX_RE/([a-zA-Z0-9_\-\.]+)\.css\z!o) { get_css($ctx, $1, $2); } elsif ($path_info =~ m!$INBOX_RE/($OID_RE)/s/\z!o) { get_vcs_object($ctx, $1, $2); @@ -536,11 +536,15 @@ sub stylesheets_prepare ($$) { $inline_ok = 0; } else { my $fn = $_; + my ($key) = (m!([^/]+?)(?:\.css)?\z!i); + if ($key !~ /\A[a-zA-Z0-9_\-\.]+\z/) { + warn "ignoring $fn, non-ASCII word character\n"; + next; + } open(my $fh, '<', $fn) or do { warn "failed to open $fn: $!\n"; next; }; - my ($key) = (m!([^/]+?)(?:\.css)?\z!i); my $ctime = 0; my $local = do { local $/; <$fh> }; if ($local =~ /\S/) { -- EW
next prev parent reply other threads:[~2019-06-04 11:27 UTC|newest] Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-06-04 11:27 [PATCH 00/24] fix IDN linkification, add paranoia Eric Wong 2019-06-04 11:27 ` [PATCH 01/24] linkify: support Internationalized Domain Names in URLs Eric Wong 2019-06-04 11:27 ` [PATCH 02/24] nntp: be explicit about ASCII digit matches Eric Wong 2019-06-04 11:27 ` [PATCH 03/24] nntp: ensure we only handle ASCII whitespace Eric Wong 2019-06-04 11:27 ` [PATCH 04/24] mid: id_compress requires ASCII-clean words Eric Wong 2019-06-04 11:27 ` [PATCH 05/24] feed: only accept ASCII digits for ref~$N Eric Wong 2019-06-04 11:27 ` [PATCH 06/24] http: require SERVER_PORT to be ASCII digit Eric Wong 2019-06-04 11:27 ` [PATCH 07/24] wwwlisting: require ASCII digit for port number Eric Wong 2019-06-04 11:27 ` [PATCH 08/24] wwwattach: only pass the charset through if ASCII Eric Wong 2019-06-04 11:27 ` [PATCH 09/24] www: only emit ASCII chars in attachment filenames Eric Wong 2019-06-04 11:27 ` [PATCH 10/24] www: require ASCII filenames in git blob downloads Eric Wong 2019-06-04 11:27 ` [PATCH 11/24] config: do not accept non-ASCII digits in cgitrc params Eric Wong 2019-06-04 11:27 ` [PATCH 12/24] newswww: only accept ASCII digits as article numbers Eric Wong 2019-06-04 11:27 ` [PATCH 13/24] view: require YYYYmmDD(HHMMSS) timestamps to be ASCII Eric Wong 2019-06-04 11:27 ` [PATCH 14/24] githttpbackend: require Range:, Status: to be ASCII digits Eric Wong 2019-06-04 11:27 ` [PATCH 15/24] searchview: do not allow non-ASCII offsets and limits Eric Wong 2019-06-04 11:27 ` [PATCH 16/24] msgtime: require ASCII digits for parsing dates Eric Wong 2019-06-04 11:27 ` [PATCH 17/24] filter/rubylang: require ASCII digit for mailcount Eric Wong 2019-06-04 11:27 ` [PATCH 18/24] inbox: require ASCII digits for feedmax var Eric Wong 2019-06-04 11:27 ` [PATCH 19/24] solver|viewdiff: restrict digit matches to ASCII Eric Wong 2019-06-04 11:27 ` [PATCH 20/24] www: require ASCII digit for git epoch Eric Wong 2019-06-04 11:27 ` [PATCH 21/24] require ASCII digits for local FS items Eric Wong 2019-06-04 11:27 ` [PATCH 22/24] githttpbackend: require ASCII in path Eric Wong 2019-06-04 11:27 ` [PATCH 23/24] www: require ASCII range for mbox downloads Eric Wong 2019-06-04 11:27 ` Eric Wong [this message] 2019-06-05 2:18 ` [PATCH 25/24] tighten up digit matches to ASCII for git output Eric Wong
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