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-rw-r--r--filters/email-libravatar.lua17
1 files changed, 13 insertions, 4 deletions
diff --git a/filters/email-libravatar.lua b/filters/email-libravatar.lua
index b0e2447..7336baf 100644
--- a/filters/email-libravatar.lua
+++ b/filters/email-libravatar.lua
@@ -3,15 +3,24 @@
 -- prefix in filters.
 --
 -- 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()