X-Git-Url: https://gitweb.ps.run/ps-cgit/blobdiff_plain/5bda21faf4df44ba089ee745b72f0806115c322b..refs/heads/main:/filters/email-gravatar.lua

diff --git a/filters/email-gravatar.lua b/filters/email-gravatar.lua
index 3aad258..c39b490 100644
--- a/filters/email-gravatar.lua
+++ b/filters/email-gravatar.lua
@@ -3,19 +3,28 @@
 -- prefix in filters. It is much faster than the corresponding python script.
 --
 -- Requirements:
--- 	luacrypto >= 0.3
--- 	<http://mkottman.github.io/luacrypto/>
+-- 	luaossl
+-- 	<http://25thandclement.com/~william/projects/luaossl.html>
 --
 
-local crypto = require("crypto")
+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 = crypto.digest("md5", email:sub(2, -2):lower())
+	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)
+	html("<img src='//www.gravatar.com/avatar/" .. md5 .. "?s=13&amp;d=retro' width='13' height='13' alt='Gravatar' /> " .. buffer)
 	return 0
 end