source@mandoc.bsd.lv
 help / color / mirror / Atom feed
From: schwarze@mandoc.bsd.lv
To: source@mandoc.bsd.lv
Subject: mandoc: Add a Content-Security-Policy HTTP header that allows only CSS.
Date: Sun, 10 Nov 2019 17:35:55 -0500 (EST)	[thread overview]
Message-ID: <8d0770caef602ab1@mandoc.bsd.lv> (raw)

Log Message:
-----------
Add a Content-Security-Policy HTTP header that allows only CSS.
This ensures that in a modern browser that understands the header,
mandoc rendering bugs cannot possibly be interpreted as JavaScript.
Patch from bentley@.

Modified Files:
--------------
    mandoc:
        cgi.c

Revision Data
-------------
Index: cgi.c
===================================================================
RCS file: /home/cvs/mandoc/mandoc/cgi.c,v
retrieving revision 1.168
retrieving revision 1.169
diff -Lcgi.c -Lcgi.c -u -p -r1.168 -r1.169
--- cgi.c
+++ cgi.c
@@ -340,6 +340,8 @@ resp_begin_http(int code, const char *ms
 
 	printf("Content-Type: text/html; charset=utf-8\r\n"
 	     "Cache-Control: no-cache\r\n"
+	     "Content-Security-Policy: default-src 'none'; "
+	     "style-src 'self' 'unsafe-inline'\r\n"
 	     "Pragma: no-cache\r\n"
 	     "\r\n");
 
--
 To unsubscribe send an email to source+unsubscribe@mandoc.bsd.lv

                 reply	other threads:[~2019-11-10 22:35 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=8d0770caef602ab1@mandoc.bsd.lv \
    --to=schwarze@mandoc.bsd.lv \
    --cc=source@mandoc.bsd.lv \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).