Fixing the MSN provider issue

https://bugs.eclipse.org/bugs/show_bug.cgi?id=306270. As the initial
step adding MD5 Hash Implementation. In the next step will use the
reference doc to make 128 bit hash to 64 bit hash.

2 files changed, 30 insertions, 1 deletions

diff --git a/protocols/bundles/org.eclipse.ecf.protocol.msn/src/org/eclipse/ecf/protocol/msn/NotificationSession.java b/protocols/bundles/org.eclipse.ecf.protocol.msn/src/org/eclipse/ecf/protocol/msn/NotificationSession.java
index 49c4b5a8e..8ef37c8e5 100644
--- a/protocols/bundles/org.eclipse.ecf.protocol.msn/src/org/eclipse/ecf/protocol/msn/NotificationSession.java
+++ b/protocols/bundles/org.eclipse.ecf.protocol.msn/src/org/eclipse/ecf/protocol/msn/NotificationSession.java
@@ -274,7 +274,9 @@ final class NotificationSession extends DispatchSession {
 			}
 		} else if (input.indexOf("CHL") != -1) { //$NON-NLS-1$
 			// the read input is a challenge string
-			String query = Challenge.createQuery(StringUtils.splitSubstring(input, " ", 2)); //$NON-NLS-1$
+			//			String query = Challenge.createQuery(StringUtils.splitSubstring(input, " ", 2)); //$NON-NLS-1$
+			String query = MD5HashImpl.getMD5(StringUtils.splitSubstring(input, " ", 2));
+			//			Even this is wrong. we need to create a 64bit hash out of 128bit hash according to http://bit.ly/wdzdkd
 			write("QRY", Challenge.PRODUCT_ID + ' ' + query.length() + "\r\n" //$NON-NLS-1$ //$NON-NLS-2$
 					+ query, false);
 		} else if (input.indexOf("RNG") != -1) { //$NON-NLS-1$
diff --git a/protocols/bundles/org.eclipse.ecf.protocol.msn/src/org/eclipse/ecf/protocol/msn/internal/encode/MD5HashImpl.java b/protocols/bundles/org.eclipse.ecf.protocol.msn/src/org/eclipse/ecf/protocol/msn/internal/encode/MD5HashImpl.java
new file mode 100644
index 000000000..78393ed68
--- /dev/null
+++ b/protocols/bundles/org.eclipse.ecf.protocol.msn/src/org/eclipse/ecf/protocol/msn/internal/encode/MD5HashImpl.java
@@ -0,0 +1,27 @@
+package org.eclipse.ecf.protocol.msn.internal.encode;
+
+import java.math.BigInteger;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+public class MD5HashImpl {
+	public static String getMD5(String input) {
+		try {
+			MessageDigest md = MessageDigest.getInstance("MD5");
+			byte[] messageDigest = md.digest(input.getBytes());
+			BigInteger number = new BigInteger(1, messageDigest);
+			String hashtext = number.toString(16);
+			// Now we need to zero pad it if you actually want the full 32 chars.
+			while (hashtext.length() < 32) {
+				hashtext = "0" + hashtext;
+			}
+			return hashtext;
+		} catch (NoSuchAlgorithmException e) {
+			throw new RuntimeException(e);
+		}
+	}
+
+	public static void main(String[] args) throws NoSuchAlgorithmException {
+		System.out.println(getMD5("22210219642164014968YMM8C_H7KCQ2S_KL"));
+	}
+}