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Diffstat (limited to 'filters/email-gravatar.lua')
| -rw-r--r-- | filters/email-gravatar.lua | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/filters/email-gravatar.lua b/filters/email-gravatar.lua new file mode 100644 index 0000000..c39b490 --- /dev/null +++ b/filters/email-gravatar.lua @@ -0,0 +1,35 @@ +-- 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 + + |