cgitsb/filters/email-libravatar.lua
Christian Hesse 10c5680efb 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.
2014-12-13 12:38:42 +01:00

28 rader
749 B
Lua

-- This script may be used with the email-filter or repo.email-filter settings in cgitrc.
-- It adds libravatar icons to author names. It is designed to be used with the lua:
-- prefix in filters.
--
-- Requirements:
-- luacrypto >= 0.3
-- <http://mkottman.github.io/luacrypto/>
--
local crypto = require("crypto")
function filter_open(email, page)
buffer = ""
md5 = crypto.digest("md5", email:sub(2, -2):lower())
end
function filter_close()
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
function filter_write(str)
buffer = buffer .. str
end