From: Christian Hesse <mail@eworm.de>
Date: Wed, 10 Sep 2014 09:24:07 +0000 (+0200)
Subject: filter: fix libravatar email-filter https issue
X-Git-Url: https://gitweb.ps.run/ps-cgit/commitdiff_plain/10c5680efb02b534108b174c0967d08ae3e46927?hp=ddfaef6bb28e697491b25bff5a7b260d44ce6ccf

filter: fix libravatar email-filter https issue

Serving cgit via https and getting avatar via http gives error messages
about untrusted content. This decides whether or not to use https link
by looking at the environment variable HTTPS, which is set in CGI.
---

diff --git a/filters/email-libravatar.lua b/filters/email-libravatar.lua
index a248be4..b0e2447 100644
--- a/filters/email-libravatar.lua
+++ b/filters/email-libravatar.lua
@@ -15,7 +15,8 @@ function filter_open(email, page)
 end
 
 function filter_close()
-	html("<img src='//cdn.libravatar.org/avatar/" .. md5 .. "?s=13&amp;d=retro' width='13' height='13' alt='Libravatar' /> " .. buffer)
+	baseurl = os.getenv("HTTPS") and "https://seccdn.libravatar.org/" or "http://cdn.libravatar.org/"
+	html("<img src='" .. baseurl .. "avatar/" .. md5 .. "?s=13&amp;d=retro' width='13' height='13' alt='Libravatar' /> " .. buffer)
 	return 0
 end