From 723dc8fbcb1a4609c264758eae420ee2811a2b55 Mon Sep 17 00:00:00 2001
From: Vincent Ambo <Vincent Ambo>
Date: Sat, 11 Jan 2020 23:30:06 +0000
Subject: Squashed 'third_party/cgit/' content from commit 8fc0c81

git-subtree-dir: third_party/cgit
git-subtree-split: 8fc0c81bbbed21ee30e8a48b2ab1066a029b7b32
---
 filters/email-gravatar.lua | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 filters/email-gravatar.lua

(limited to 'filters/email-gravatar.lua')

diff --git a/filters/email-gravatar.lua b/filters/email-gravatar.lua
new file mode 100644
index 000000000000..c39b490d6bb6
--- /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&amp;d=retro' width='13' height='13' alt='Gravatar' /> " .. buffer)
+	return 0
+end
+
+function filter_write(str)
+	buffer = buffer .. str
+end
+
+
-- 
cgit 1.4.1