1 files changed, 28 insertions, 0 deletions
diff --git a/src/main/java/io/trygvis/esper/testing/util/Gravatar.java b/src/main/java/io/trygvis/esper/testing/util/Gravatar.java
new file mode 100644
index 0000000..c98662d
--- /dev/null
+++ b/src/main/java/io/trygvis/esper/testing/util/Gravatar.java
@@ -0,0 +1,28 @@
+package io.trygvis.esper.testing.util;
+
+import java.io.*;
+import java.security.*;
+
+public class Gravatar {
+    public static String hex(byte[] array) {
+        StringBuilder sb = new StringBuilder();
+        for (byte anArray : array) {
+            sb.append(Integer.toHexString((anArray & 0xFF) | 0x100).substring(1, 3));
+        }
+        return sb.toString();
+    }
+
+    public static String md5Hex(String message) {
+        try {
+            MessageDigest md = MessageDigest.getInstance("MD5");
+            return hex(md.digest(message.getBytes("CP1252")));
+        } catch (NoSuchAlgorithmException e) {
+        } catch (UnsupportedEncodingException e) {
+        }
+        return null;
+    }
+
+    public static String gravatar(String mail) {
+        return "http://www.gravatar.com/avatar/" + md5Hex(mail.trim().toLowerCase());
+    }
+}