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-- This script may be used with the email-filter or repo.email-filter settings in cgitrc.
-- It adds gravatar icons to author names. It is designed to be used with the lua:
-- prefix in filters. It is much faster than the corresponding python script.
--
-- Requirements:
-- luaossl
-- <http://25thandclement.com/~william/projects/luaossl.html>
--
local digest = require("openssl.digest")
function md5_hex(input)
local b = digest.new("md5"):final(input)
local x = ""
for i = 1, #b do
x = x .. string.format("%.2x", string.byte(b, i))
end
return x
end
function filter_open(email, page)
buffer = ""
md5 = md5_hex(email:sub(2, -2):lower())
end
function filter_close()
html("<img src='//www.gravatar.com/avatar/" .. md5 .. "?s=13&d=retro' width='13' height='13' alt='Gravatar' /> " .. buffer)
return 0
end
function filter_write(str)
buffer = buffer .. str
end
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