From f19131b9eac6223540bd887d7b0fb32a2584337f Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Wed, 19 Mar 2014 02:58:41 -0600
Subject: Steal kernel.org's libravatar lua.

---
 cgit.css                           | 28 ++++++++++++++++++++++++++++
 filters/email-libravatar-hover.lua | 16 ++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 filters/email-libravatar-hover.lua

diff --git a/cgit.css b/cgit.css
index 1dc2c11..0ec46bc 100644
--- a/cgit.css
+++ b/cgit.css
@@ -850,3 +850,31 @@ div#cgit table.ssdiff td.space {
 div#cgit table.ssdiff td.space div {
 	min-height: 3em;
 }
+div#cgit span.libravatar img.onhover {
+        display: none;
+        border: 1px solid gray;
+        padding: 0px;
+        -webkit-border-radius: 4px;
+        -moz-border-radius: 4px;
+        border-radius: 4px;
+        width: 128px;
+        height: 128px;
+}
+
+div#cgit span.libravatar img.inline {
+        -webkit-border-radius: 3px;
+        -moz-border-radius: 3px;
+        border-radius: 3px;
+        width: 13px;
+        height: 13px;
+        margin-right: 0.2em;
+        opacity: 0.6;
+}
+
+div#cgit span.libravatar:hover > img.onhover {
+        display: block;
+        position: absolute;
+        margin-left: 1.5em;
+        background-color: #eeeeee;
+        box-shadow: 2px 2px 7px rgba(100,100,100,0.75);
+}
diff --git a/filters/email-libravatar-hover.lua b/filters/email-libravatar-hover.lua
new file mode 100644
index 0000000..46e7ab1
--- /dev/null
+++ b/filters/email-libravatar-hover.lua
@@ -0,0 +1,16 @@
+local crypto = require("crypto")
+
+function filter_open(email, page)
+        buffer = ""
+        hexdigest = crypto.digest("md5", email:sub(2, -2):lower())
+end
+
+function filter_close()
+        baseurl = os.getenv("HTTPS") and "https://seccdn.libravatar.org/" or "http://cdn.libravatar.org/"
+        html("<span class='libravatar'><img class='inline' src='" .. baseurl .. "avatar/" .. hexdigest .. "?s=13&amp;d=retro' /><img class='onhover' src='" .. baseurl .. "avatar/" .. hexdigest .. "?s=128&amp;d=retro' /></span>" .. buffer)
+        return 0
+end
+
+function filter_write(str)
+        buffer = buffer .. str
+end
-- 
cgit v1.2.3