filter: add gravatar scripts

[ps-cgit] / filters / email-gravatar.lua

diff --git a/filters/email-gravatar.lua b/filters/email-gravatar.lua
new file mode 100644 (file)
index 0000000..8a53447
--- /dev/null
+++ b/filters/email-gravatar.lua
@@ -0,0 +1,25 @@
+-- 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:
+--     luacrypto >= 0.3
+--     <http://mkottman.github.io/luacrypto/>
+--
+
+require("crypto")
+
+function filter_open(email)
+       buffer = ""
+       md5 = crypto.digest("md5", email:sub(2, -2):lower())
+end
+
+function filter_close()
+       html("<img src='//www.gravatar.com/avatar/" .. md5 .. "?s=13&d=retro' style='height:10pt;width:10pt'> " .. buffer)
+end
+
+function filter_write(str)
+       buffer = buffer .. str
+end
+
+