- Some improvements in "feature" introducing in Jabber.

- Support for thumbnails in Jabber file transfer.
- Fixed some issues with the calculated file transfer speed and estimated transfer time.
- Shows open and open folder links also on the sender side when the transfer is completed.

1 files changed, 76 insertions, 0 deletions

diff --git a/src/net/java/sip/communicator/util/Sha1Crypto.java b/src/net/java/sip/communicator/util/Sha1Crypto.java
new file mode 100644
index 0000000..692a075
--- /dev/null
+++ b/src/net/java/sip/communicator/util/Sha1Crypto.java
@@ -0,0 +1,76 @@
+package net.java.sip.communicator.util;
+
+import java.io.UnsupportedEncodingException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+public class Sha1Crypto
+{
+    /**
+     * Encodes the given text with the SHA-1 algorithm.
+     * 
+     * @param text the text to encode
+     * @return the encoded text
+     * @throws NoSuchAlgorithmException
+     * @throws UnsupportedEncodingException
+     */
+    public static String encode(String text) 
+        throws  NoSuchAlgorithmException,
+                UnsupportedEncodingException
+    {
+        MessageDigest messageDigest = MessageDigest.getInstance("SHA-1");
+
+        byte[] sha1hash;
+        messageDigest.update(text.getBytes("iso-8859-1"), 0, text.length());
+        sha1hash = messageDigest.digest();
+
+        return convertToHex(sha1hash);
+    }
+
+    /**
+     * Encodes the given text with the SHA-1 algorithm.
+     * 
+     * @param byteArreay the byte array to encode
+     * @return the encoded text
+     * @throws NoSuchAlgorithmException
+     * @throws UnsupportedEncodingException
+     */
+    public static String encode(byte[] byteArray) 
+        throws  NoSuchAlgorithmException,
+                UnsupportedEncodingException
+    {
+        MessageDigest messageDigest = MessageDigest.getInstance("SHA-1");
+
+        byte[] sha1hash;
+        messageDigest.update(byteArray);
+        sha1hash = messageDigest.digest();
+
+        return convertToHex(sha1hash);
+    }
+
+    /**
+     * Converts the given byte data into Hex string.
+     * 
+     * @param data the byte array to convert
+     * @return the Hex string representation of the given byte array
+     */
+    private static String convertToHex(byte[] data)
+    {
+        StringBuffer buf = new StringBuffer();
+        for (int i = 0; i < data.length; i++)
+        {
+            int halfbyte = (data[i] >>> 4) & 0x0F;
+            int two_halfs = 0;
+            do
+            {
+                if ((0 <= halfbyte) && (halfbyte <= 9))
+                    buf.append((char) ('0' + halfbyte));
+                else
+                    buf.append((char) ('a' + (halfbyte - 10)));
+                halfbyte = data[i] & 0x0F;
+            }
+            while(two_halfs++ < 1);
+        }
+        return buf.toString();
+    }
+}