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-rw-r--r--email-libravatar.lua37
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diff --git a/email-libravatar.lua b/email-libravatar.lua
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+-- 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:
+-- 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()
+ 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)
+ html("<span class='libravatar'><img class='inline' src='" .. baseurl .. "avatar/" .. md5 .. "?s=13&amp;d=retro' width='13' height='13' alt='Libravatar' /><img class='onhover' src='" .. baseurl .. "avatar/" .. md5 .. "?s=128&amp;d=retro' /></span>" .. buffer)
+ return 0
+end
+
+function filter_write(str)
+ buffer = buffer .. str
+end
+
+