Support for video and photo previews in chat window provided by Purvesh Sahoo as part of its GSoC project.

40 files changed, 2714 insertions, 131 deletions

diff --git a/src/net/java/sip/communicator/impl/gui/GuiActivator.java b/src/net/java/sip/communicator/impl/gui/GuiActivator.java
index 8e31dc0..488ae11 100644
--- a/src/net/java/sip/communicator/impl/gui/GuiActivator.java
+++ b/src/net/java/sip/communicator/impl/gui/GuiActivator.java
@@ -25,6 +25,7 @@ import net.java.sip.communicator.service.metahistory.*;
 import net.java.sip.communicator.service.neomedia.*;
 import net.java.sip.communicator.service.notification.*;
 import net.java.sip.communicator.service.protocol.*;
+import net.java.sip.communicator.service.replacement.*;
 import net.java.sip.communicator.service.resources.*;
 import net.java.sip.communicator.service.shutdown.*;
 import net.java.sip.communicator.service.systray.*;
@@ -83,10 +84,13 @@ public class GuiActivator implements BundleActivator
     private static final Map<Object, ProtocolProviderFactory>
         providerFactoriesMap = new Hashtable<Object, ProtocolProviderFactory>();
 
+    private static final Map<Object, ReplacementService>
+        replacementSourcesMap = new Hashtable<Object, ReplacementService>();
+
     /**
      * Indicates if this bundle has been started.
      */
-    public  static boolean isStarted = false;
+    public static boolean isStarted = false;
 
     /**
      * The contact list object.
@@ -614,6 +618,44 @@ public class GuiActivator implements BundleActivator
     }
 
     /**
+     * Returns all <tt>ReplacementService</tt>s obtained from the bundle
+     * context.
+     * 
+     * @return all <tt>ReplacementService</tt> implementation obtained from the
+     *         bundle context
+     */
+    public static Map<Object, ReplacementService> getReplacementSources()
+    {
+        ServiceReference[] serRefs = null;
+        try
+        {
+            // get all registered sources
+            serRefs
+                = bundleContext.getServiceReferences(ReplacementService.class
+                    .getName(), null);
+
+        }
+        catch (InvalidSyntaxException e)
+        {
+            logger.error("Error : " + e);
+        }
+
+        if (serRefs != null)
+        {
+            for (int i = 0; i < serRefs.length; i++)
+            {
+                ReplacementService replacementSources =
+                    (ReplacementService) bundleContext.getService(serRefs[i]);
+
+                replacementSourcesMap.put(serRefs[i]
+                    .getProperty(ReplacementService.SOURCE_NAME),
+                    replacementSources);
+            }
+        }
+        return replacementSourcesMap;
+    }
+
+    /**
      * Sets the <tt>contactList</tt> component currently used to show the
      * contact list.
      * @param list the contact list object to set
diff --git a/src/net/java/sip/communicator/impl/gui/main/chat/ChatConversationPanel.java b/src/net/java/sip/communicator/impl/gui/main/chat/ChatConversationPanel.java
index 30d0a16..afb57e0 100755
--- a/src/net/java/sip/communicator/impl/gui/main/chat/ChatConversationPanel.java
+++ b/src/net/java/sip/communicator/impl/gui/main/chat/ChatConversationPanel.java
@@ -11,6 +11,7 @@ import java.awt.datatransfer.*;
 import java.awt.event.*;
 import java.io.*;
 import java.util.*;
+import java.util.Map.*;
 import java.util.regex.*;
 
 import javax.swing.*;
@@ -24,8 +25,10 @@ import net.java.sip.communicator.impl.gui.main.chat.history.*;
 import net.java.sip.communicator.impl.gui.main.chat.menus.*;
 import net.java.sip.communicator.impl.gui.utils.*;
 import net.java.sip.communicator.service.gui.*;
+import net.java.sip.communicator.service.replacement.*;
 import net.java.sip.communicator.util.*;
 import net.java.sip.communicator.util.swing.*;
+import net.java.sip.communicator.util.swing.SwingWorker;
 
 /**
  * The <tt>ChatConversationPanel</tt> is the panel, where all sent and received
@@ -69,41 +72,68 @@ public class ChatConversationPanel
             + ")");
 
     /**
-     * The compiled <tt>Pattern</tt> which matches {@link #smileyStrings}. 
+     * The component rendering chat conversation panel text.
      */
-    private static Pattern smileyPattern;
+    private final JTextPane chatTextPane = new MyTextPane();
 
     /**
-     * The <tt>List</tt> of smiley strings which are matched by
-     * {@link #smileyPattern}.
+     * The editor kit used by the text component.
      */
-    private static final java.util.List<String> smileyStrings
-        = new ArrayList<String>();
-
-    private final JTextPane chatTextPane = new MyTextPane();
-
     private final HTMLEditorKit editorKit;
 
+    /**
+     * The document used by the text component.
+     */
     private HTMLDocument document;
 
+    /**
+     * The parent container.
+     */
     private final ChatConversationContainer chatContainer;
 
+    /**
+     * The menu shown on right button mouse click.
+     */
     private final ChatRightButtonMenu rightButtonMenu;
 
+    /**
+     * The currently shown href.
+     */
     private String currentHref;
 
+    /**
+     * The copy link item, contained in the right mouse click menu.
+     */
     private final JMenuItem copyLinkItem;
 
+    /**
+     * The open link item, contained in the right mouse click menu.
+     */
     private final JMenuItem openLinkItem;
 
+    /**
+     * The right mouse click menu separator.
+     */
     private final JSeparator copyLinkSeparator = new JSeparator();
 
+    /**
+     * The timestamp of the last incoming message.
+     */
     private long lastIncomingMsgTimestamp;
 
+    /**
+     * Indicates if this component is rendering a history conversation.
+     */
     private final boolean isHistory;
 
+    /**
+     * The html text content type.
+     */
     public static final String HTML_CONTENT_TYPE = "text/html";
 
+    /**
+     * The plain text content type.
+     */
     public static final String TEXT_CONTENT_TYPE = "text/plain";
 
     /**
@@ -245,7 +275,7 @@ public class ChatConversationPanel
         getViewport().addComponentListener(componentListener);
     }
 
-    /*
+    /**
      * Overrides Component#setBounds(int, int, int, int) in order to determine
      * whether an automatic scroll of #chatTextPane to its bottom will be
      * necessary at a later time in order to keep its vertical scroll bar to its
@@ -519,10 +549,104 @@ public class ChatConversationPanel
             }
             if (!isHistory)
                 ensureDocumentSize();
+
+            // Process replacements.
+            final Element elem;
+            /*
+             * Check to make sure element isn't the first element in the HTML
+             * document.
+             */
+            if (!(root.getElementCount() < 2))
+            {
+                elem = root.getElement(root.getElementCount() - 2);
+            }
+            else
+                elem = root.getElement(1);
+
+            /*
+             * Replacements will be processed only if it is enabled in the
+             * property
+             */
+            if (GuiActivator.getConfigurationService().getBoolean(
+                ReplacementProperty.REPLACEMENT_ENABLE, true)
+                || GuiActivator.getConfigurationService().getBoolean(
+                    ReplacementProperty.getPropertyName("SMILEY"), true))
+            {
+                processReplacement(elem, chatString);
+            }
         }
     }
 
     /**
+    * Formats the given message. Processes the messages and replaces links to
+    * video/image sources with their previews or any other substitution. Spawns
+    * a separate thread for replacement.
+    * 
+    * @param elem the element in the HTML Document.
+    * @param chatString the message.
+    */
+    private void processReplacement(final Element elem, final String chatString)
+    {
+       final String chatFinal = chatString;
+
+       SwingWorker worker = new SwingWorker()
+       {
+           public Object construct() throws Exception
+           {
+               String temp = "", msgStore = chatFinal;
+
+               boolean isEnabled
+                   = GuiActivator.getConfigurationService().getBoolean(
+                       ReplacementProperty.REPLACEMENT_ENABLE, true);
+
+               Map<Object, ReplacementService> listSources
+                   = GuiActivator.getReplacementSources();
+
+               Iterator<Entry<Object, ReplacementService>> entrySetIter
+                   = listSources.entrySet().iterator();
+
+               for (int i = 0; i < listSources.size(); i++)
+               {
+                   Map.Entry<Object, ReplacementService> entry
+                       = entrySetIter.next();
+
+                   ReplacementService source = entry.getValue();
+
+                   if (!(GuiActivator.getConfigurationService().getBoolean(
+                       ReplacementProperty.getPropertyName((String) entry
+                           .getKey()), true) && (isEnabled || entry.getKey()
+                       .equals("SMILEY"))))
+                       continue;
+
+                   temp = source.getReplacedMessage(msgStore);
+
+                   /*
+                    * replace the msgStore variable with the current replaced
+                    * message before next iteration
+                    */
+
+                   if (!temp.equals(msgStore))
+                   {
+                       msgStore = temp;
+                   }
+               }
+
+               if (!temp.equals(chatFinal))
+               {
+                   synchronized (scrollToBottomRunnable)
+                   {
+                       scrollToBottomIsPending = true;
+                       document.setOuterHTML(elem, temp.toString().substring(
+                           temp.indexOf("<DIV")));
+                   }
+               }
+               return "";
+           }
+       };
+       worker.start();
+    }
+
+    /**
      * Ensures that the document won't become too big. When the document reaches
      * a certain size the first message in the page is removed.
      */
@@ -703,9 +827,6 @@ public class ChatConversationPanel
             message = processImgTags(processBrTags(message));
         }
 
-        if (ConfigurationManager.isShowSmileys())
-            message = processSmileys(message, contentType);
-
         return message;
     }
 
@@ -806,123 +927,6 @@ public class ChatConversationPanel
     }
 
     /**
-     * Formats message smileys.
-     *
-     * @param message the source message string
-     * @param contentType the content type
-     * @return the message string with properly formated smileys
-     */
-    private String processSmileys(String message, String contentType)
-    {
-        String startPlainTextTag;
-        String endPlainTextTag;
-        if (!HTML_CONTENT_TYPE.equals(contentType))
-        {
-            startPlainTextTag = START_PLAINTEXT_TAG;
-            endPlainTextTag = END_PLAINTEXT_TAG;
-        }
-        else
-        {
-            startPlainTextTag = "";
-            endPlainTextTag = "";
-        }
-
-        Collection<Smiley> smileys = ImageLoader.getDefaultSmileyPack();
-        Matcher m = getSmileyPattern(smileys).matcher(message);
-        StringBuffer msgBuffer = new StringBuffer();
-        int prevEnd = 0;
-
-        while (m.find())
-        {
-            msgBuffer.append(message.substring(prevEnd, m.start()));
-            prevEnd = m.end();
-
-            String smileyString = m.group().trim();
-
-            msgBuffer.append(endPlainTextTag);
-            msgBuffer.append("<IMG SRC=\"");
-            msgBuffer
-                .append(ImageLoader.getSmiley(smileyString).getImagePath());
-            msgBuffer.append("\" ALT=\"");
-            msgBuffer.append(smileyString);
-            msgBuffer.append("\"></IMG>");
-            msgBuffer.append(startPlainTextTag);
-        }
-        msgBuffer.append(message.substring(prevEnd));
-
-        return msgBuffer.toString();
-    }
-
-    /**
-     * Gets a compiled <tt>Pattern</tt> which matches the smiley strings of the
-     * specified <tt>Collection</tt> of <tt>Smiley</tt>s.
-     *
-     * @param smileys the <tt>Collection</tt> of <tt>Smiley</tt>s for which to
-     * get a compiled <tt>Pattern</tt> which matches its smiley strings
-     * @return a compiled <tt>Pattern</tt> which matches the smiley strings of
-     * the specified <tt>Collection</tt> of <tt>Smiley</tt>s
-     */
-    private static Pattern getSmileyPattern(Collection<Smiley> smileys)
-    {
-        synchronized (smileyStrings)
-        {
-            boolean smileyStringsIsEqual;
-
-            if (smileyPattern == null)
-                smileyStringsIsEqual = false;
-            else
-            {
-                smileyStringsIsEqual = true;
-
-                int smileyStringIndex = 0;
-                int smileyStringCount = smileyStrings.size();
-
-                smileyLoop: for (Smiley smiley : smileys)
-                    for (String smileyString : smiley.getSmileyStrings())
-                        if ((smileyStringIndex < smileyStringCount)
-                                && smileyString
-                                    .equals(
-                                        smileyStrings.get(smileyStringIndex)))
-                            smileyStringIndex++;
-                        else
-                        {
-                            smileyStringsIsEqual = false;
-                            break smileyLoop;
-                        }
-                if (smileyStringsIsEqual
-                        && (smileyStringIndex != smileyStringCount))
-                    smileyStringsIsEqual = false;
-            }
-
-            if (!smileyStringsIsEqual)
-            {
-                smileyStrings.clear();
-
-                StringBuffer regex = new StringBuffer();
-
-                regex.append("(?<!(alt='|alt=\"))(");
-                for (Smiley smiley : smileys)
-                    for (String smileyString : smiley.getSmileyStrings())
-                    {
-                        smileyStrings.add(smileyString);
-
-                        regex
-                            .append(
-                                    GuiUtils
-                                        .replaceSpecialRegExpChars(
-                                            smileyString))
-                                .append("|");
-                    }
-                regex = regex.deleteCharAt(regex.length() - 1);
-                regex.append(')');
-
-                smileyPattern = Pattern.compile(regex.toString());
-            }
-            return smileyPattern;
-        }
-    }
-
-    /**
      * Opens a link in the default browser when clicked and shows link url in a
      * popup on mouseover.
      *
diff --git a/src/net/java/sip/communicator/impl/gui/swing.ui.manifest.mf b/src/net/java/sip/communicator/impl/gui/swing.ui.manifest.mf
index 8139b8e..b516bdf 100644
--- a/src/net/java/sip/communicator/impl/gui/swing.ui.manifest.mf
+++ b/src/net/java/sip/communicator/impl/gui/swing.ui.manifest.mf
@@ -33,6 +33,7 @@ Import-Package: org.osgi.framework,
  net.java.sip.communicator.service.neomedia,
  net.java.sip.communicator.service.neomedia.device,
  net.java.sip.communicator.service.contactsource,
+ net.java.sip.communicator.service.replacement,
  net.java.sip.communicator.util,
  net.java.sip.communicator.util.swing,
  net.java.sip.communicator.util.swing.border,
diff --git a/src/net/java/sip/communicator/impl/gui/utils/Smiley.java b/src/net/java/sip/communicator/impl/gui/utils/Smiley.java
index a59ed17..8a6601f 100644
--- a/src/net/java/sip/communicator/impl/gui/utils/Smiley.java
+++ b/src/net/java/sip/communicator/impl/gui/utils/Smiley.java
@@ -32,6 +32,7 @@ public class Smiley
      * @param imageID The image identifier of the smiley icon.
      * @param smileyStrings A set of strings corresponding to the smiley
      * icon.
+     * @param description the description of the smiley
      */
     public Smiley(ImageID imageID, String[] smileyStrings, String description)
     {
@@ -95,4 +96,22 @@ public class Smiley
 
         return url.toString();
     }
+
+    /**
+     * Returns the path of the image corresponding to this smiley.
+     * @param resourcesService The ResourceManagementService required to get the 
+     *        image URL.
+     * @return the path of the image corresponding to this smiley.
+     */
+    public String getImagePath(ResourceManagementService resourcesService) 
+    {
+        URL url
+            = resourcesService
+                .getImageURL(this.getImageID().getId());
+
+        if(url == null)
+            return null;
+
+        return url.toString();
+    }
 }
diff --git a/src/net/java/sip/communicator/impl/replacement/bliptv/BliptvActivator.java b/src/net/java/sip/communicator/impl/replacement/bliptv/BliptvActivator.java
new file mode 100644
index 0000000..40ff265
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/bliptv/BliptvActivator.java
@@ -0,0 +1,70 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.bliptv;
+
+import java.util.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+import org.osgi.framework.*;
+
+/**
+ * Activator for the Blip.tv source bundle.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class BliptvActivator
+    implements BundleActivator
+{
+    /**
+     * The <tt>Logger</tt> used by the <tt>BliptvActivator</tt> class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(BliptvActivator.class);
+
+    /**
+     * The blip tv service registration.
+     */
+    private ServiceRegistration bliptvServReg = null;
+
+    /**
+     * The source implementation reference.
+     */
+    private static ReplacementService bliptvSource = null;
+
+    /**
+     * Starts the Blip.tv replacement source bundle
+     *
+     * @param context the <tt>BundleContext</tt> as provided from the OSGi
+     *            framework
+     * @throws Exception if anything goes wrong
+     */
+    public void start(BundleContext context) throws Exception
+    {
+        Hashtable<String, String> hashtable = new Hashtable<String, String>();
+        hashtable.put(ReplacementService.SOURCE_NAME, "BLIPTV");
+        bliptvSource = new ReplacementServiceBliptvImpl();
+
+        bliptvServReg =
+            context.registerService(ReplacementService.class.getName(),
+                bliptvSource, hashtable);
+
+        logger.info("Blip.TV source implementation [STARTED].");
+    }
+
+    /**
+     * Unregisters the Blip.tv replacement service.
+     *
+     * @param context BundleContext
+     * @throws Exception if anything goes wrong
+     */
+    public void stop(BundleContext context) throws Exception
+    {
+        bliptvServReg.unregister();
+        logger.info("Blip.TV source implementation [STOPPED].");
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/bliptv/ReplacementServiceBliptvImpl.java b/src/net/java/sip/communicator/impl/replacement/bliptv/ReplacementServiceBliptvImpl.java
new file mode 100644
index 0000000..70fb553
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/bliptv/ReplacementServiceBliptvImpl.java
@@ -0,0 +1,130 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.bliptv;
+
+import java.io.*;
+import java.net.*;
+import java.util.regex.*;
+
+import org.json.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+/**
+ * Implements the {@link ReplacementService} to provide previews for Blip.tv
+ * links.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class ReplacementServiceBliptvImpl
+    implements ReplacementService
+{
+    /**
+     * The logger for this class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(ReplacementServiceBliptvImpl.class);
+
+    /**
+     * The regex used to match the link in the message.
+     */
+    public static final String BLIPTV_PATTERN =
+        "(?:[\\>])(http:\\/\\/(?:www\\.)?blip\\.tv\\/file\\/(\\d+).*(?=<))";
+
+    /**
+     * Configuration label property name. The label is saved in the languages
+     * file under this property.
+     */
+    public static final String BLIPTV_CONFIG_LABEL = "BLIPTV";
+
+    /**
+     * Constructor for <tt>ReplacementServiceBliptvImpl</tt>. The source needs
+     * to add itself to {@link ReplacementService} sourceList to be displayed in
+     * the configuration panel.
+     */
+    public ReplacementServiceBliptvImpl()
+    {
+        sourceList.add(BLIPTV_CONFIG_LABEL);
+        logger.trace("Creating a Blip.TV Source.");
+    }
+
+    /**
+     * Replaces the Blip.tv video links in the chat message with their
+     * corresponding thumbnails.
+     * 
+     * @param chatString the original chat message.
+     * @return replaced chat message with the thumbnail image; the original
+     *         message in case of no match.
+     */
+    public String getReplacedMessage(String chatString)
+    {
+        final Pattern p =
+            Pattern.compile(BLIPTV_PATTERN, Pattern.CASE_INSENSITIVE
+                | Pattern.DOTALL);
+        Matcher m = p.matcher(chatString);
+
+        int count = 0, startPos = 0;
+        StringBuffer msgBuff = new StringBuffer();
+
+        while (m.find())
+        {
+            count++;
+            msgBuff.append(chatString.substring(startPos, m.start()));
+            startPos = m.end();
+
+            try
+            {
+                String url = "http://oohembed.com/oohembed/?url=" + m.group(1);
+
+                URL sourceURL = new URL(url);
+                URLConnection conn = sourceURL.openConnection();
+
+                BufferedReader in =
+                    new BufferedReader(new InputStreamReader(conn
+                        .getInputStream()));
+
+                String inputLine, holder = "";
+
+                while ((inputLine = in.readLine()) != null)
+                    holder += inputLine;
+                in.close();
+
+                JSONObject wrapper = new JSONObject(holder);
+
+                String thumbUrl = wrapper.getString("thumbnail_url");
+
+                if (thumbUrl != null)
+                {
+                    msgBuff.append("<IMG HEIGHT=\"90\" WIDTH=\"120\" SRC=\"");
+                    msgBuff.append(thumbUrl);
+                    msgBuff.append("\"></IMG>");
+
+                }
+                else
+                {
+                    startPos = 0;
+                    msgBuff = new StringBuffer();
+                }
+
+            }
+            catch (Exception e)
+            {
+                startPos = 0;
+                msgBuff = new StringBuffer();
+                e.printStackTrace();
+            }
+
+        }
+
+        msgBuff.append(chatString.substring(startPos));
+
+        if (!msgBuff.toString().equals(chatString))
+            return msgBuff.toString();
+
+        return chatString;
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/bliptv/bliptv.source.manifest.mf b/src/net/java/sip/communicator/impl/replacement/bliptv/bliptv.source.manifest.mf
new file mode 100644
index 0000000..dddb7da
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/bliptv/bliptv.source.manifest.mf
@@ -0,0 +1,13 @@
+Bundle-Activator: net.java.sip.communicator.impl.replacement.bliptv.BliptvActivator
+Bundle-Name: Blip.tv Preview Replacement Source
+Bundle-Description: A bundle providing processing for Blip.tv previews.
+Bundle-Vendor: sip-communicator.org
+Bundle-Version: 1.0.0
+System-Bundle: yes
+Export-Package: net.java.sip.communicator.service.replacement
+Import-Package: org.osgi.framework,
+ net.java.sip.communicator.service.configuration,
+ net.java.sip.communicator.service.resources,
+ net.java.sip.communicator.util,
+ net.java.sip.communicator.service.replacement,
+ org.apache.http
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/dailymotion/DailymotionActivator.java b/src/net/java/sip/communicator/impl/replacement/dailymotion/DailymotionActivator.java
new file mode 100644
index 0000000..c21da84
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/dailymotion/DailymotionActivator.java
@@ -0,0 +1,70 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.dailymotion;
+
+import java.util.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.service.resources.*;
+import net.java.sip.communicator.util.*;
+
+import org.osgi.framework.*;
+
+/**
+ * Activator for the Dailymotion source bundle.
+ * @author Purvesh Sahoo
+ */
+public class DailymotionActivator
+    implements BundleActivator
+{
+    /**
+     * The currently valid bundle context.
+     */
+    private static final Logger logger =
+        Logger.getLogger(DailymotionActivator.class);
+
+    /**
+     * The daily motion source service registration.
+     */
+    private ServiceRegistration dailymotionSourceServReg = null;
+
+    /**
+     * The source implementation reference.
+     */
+    private static ReplacementService dailymotionSource = null;
+
+    /**
+     * Starts the Dailymotion replacement source bundle
+     *
+     * @param context the <tt>BundleContext</tt> as provided from the OSGi
+     * framework
+     * @throws Exception if anything goes wrong
+     */
+    public void start(BundleContext context) throws Exception
+    {
+        Hashtable<String, String> hashtable = new Hashtable<String, String>();
+        hashtable.put(ReplacementService.SOURCE_NAME, "DAILYMOTION");
+        dailymotionSource = new ReplacementServiceDailymotionImpl();
+
+        dailymotionSourceServReg =
+            context.registerService(ReplacementService.class.getName(),
+                dailymotionSource, hashtable);
+        logger.info("Dailymotion source implementation [STARTED].");
+    }
+
+    /**
+     * Unregisters the Dailymotion replacement service.
+     *
+     * @param context BundleContext
+     * @throws Exception if anything goes wrong
+     */
+    public void stop(BundleContext context) throws Exception
+    {
+        dailymotionSourceServReg.unregister();
+        logger.info("Dailymotion source implementation [STOPPED].");
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/dailymotion/ReplacementServiceDailymotionImpl.java b/src/net/java/sip/communicator/impl/replacement/dailymotion/ReplacementServiceDailymotionImpl.java
new file mode 100644
index 0000000..99204e9
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/dailymotion/ReplacementServiceDailymotionImpl.java
@@ -0,0 +1,98 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.dailymotion;
+
+import java.util.regex.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+/**
+ * Implements the {@link ReplacementService} to provide previews for Dailymotion
+ * links.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class ReplacementServiceDailymotionImpl
+    implements ReplacementService
+{
+    /**
+     * The logger for this class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(ReplacementServiceDailymotionImpl.class);
+
+    /**
+     * The regex used to match the link in the message.
+     */
+    public static final String DAILYMOTION_PATTERN =
+        "(http.*?(www\\.)*?dailymotion\\.com\\/video\\/([a-zA-Z0-9_\\-]+))([?#]([a-zA-Z0-9_\\-]+))*";
+
+    /**
+     * Configuration label property name. The label is saved in the languages
+     * file under this property.
+     */
+    public static final String DAILYMOTION_CONFIG_LABEL = "DAILYMOTION";
+
+    /**
+     * Constructor for <tt>ReplacementServiceDailymotionImpl</tt>. The source
+     * needs to add itself to {@link ReplacementService} sourceList to be
+     * displayed in the configuration panel.
+     */
+    public ReplacementServiceDailymotionImpl()
+    {
+        sourceList.add(DAILYMOTION_CONFIG_LABEL);
+        logger.trace("Creating a DailyMotion Source.");
+    }
+
+    /**
+     * Replaces the dailymotion video links in the chat message with their
+     * corresponding thumbnails.
+     * 
+     * @param chatString the original chat message.
+     * @return replaced chat message with the thumbnail image; the original
+     *         message in case of no match.
+     */
+    public String getReplacedMessage(final String chatString)
+    {
+
+        final Pattern p =
+            Pattern.compile(DAILYMOTION_PATTERN, Pattern.CASE_INSENSITIVE
+                | Pattern.DOTALL);
+        Matcher m = p.matcher(chatString);
+
+        int count = 0, startPos = 0;
+        StringBuffer msgBuff = new StringBuffer();
+
+        while (m.find())
+        {
+
+            count++;
+            msgBuff.append(chatString.substring(startPos, m.start()));
+            startPos = m.end();
+
+            if (count % 2 == 0)
+            {
+                msgBuff.append("<IMG HEIGHT=\"120\" WIDTH=\"160\" SRC=\"");
+                msgBuff
+                    .append("http://www.dailymotion.com/thumbnail/160x120/video/");
+                msgBuff.append(m.group(3));
+                msgBuff.append("\"></IMG>");
+            }
+            else
+            {
+                msgBuff.append(chatString.substring(m.start(), m.end()));
+            }
+        }
+
+        msgBuff.append(chatString.substring(startPos));
+
+        if (!msgBuff.toString().equals(chatString))
+            return msgBuff.toString();
+
+        return chatString;
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/dailymotion/dailymotion.source.manifest.mf b/src/net/java/sip/communicator/impl/replacement/dailymotion/dailymotion.source.manifest.mf
new file mode 100644
index 0000000..e27a162
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/dailymotion/dailymotion.source.manifest.mf
@@ -0,0 +1,14 @@
+Bundle-Activator: net.java.sip.communicator.impl.replacement.dailymotion.DailymotionActivator
+Bundle-Name: Dailymotion Replacement Source
+Bundle-Description: A bundle providing replacement for dailymotion links.
+Bundle-Vendor: sip-communicator.org
+Bundle-Version: 1.0.0
+System-Bundle: yes
+Export-Package: net.java.sip.communicator.service.replacement
+Import-Package: org.osgi.framework,
+ net.java.sip.communicator.service.configuration,
+ net.java.sip.communicator.service.resources,
+ net.java.sip.communicator.service.configuration.event,
+ net.java.sip.communicator.util,
+ net.java.sip.communicator.service.version,
+ net.java.sip.communicator.service.replacement
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/directimage/DirectImageActivator.java b/src/net/java/sip/communicator/impl/replacement/directimage/DirectImageActivator.java
new file mode 100644
index 0000000..2e596fe
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/directimage/DirectImageActivator.java
@@ -0,0 +1,70 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.directimage;
+
+import java.util.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+import org.osgi.framework.*;
+
+/**
+ * Activator for the direct image links source bundle.
+ * @author Purvesh Sahoo
+ */
+public class DirectImageActivator
+    implements BundleActivator
+{
+    /**
+     * The <tt>Logger</tt> used by the <tt>DirectImageActivator</tt>
+     * class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(DirectImageActivator.class);
+
+    /**
+     * The direct image source service registration.
+     */
+    private ServiceRegistration directImageSourceServReg = null;
+
+    /**
+     * The source implementation reference.
+     */
+    private static ReplacementService directImageSource = null;
+
+    /**
+     * Starts the Direct image links replacement source bundle
+     *
+     * @param context the <tt>BundleContext</tt> as provided from the OSGi
+     * framework
+     * @throws Exception if anything goes wrong
+     */
+    public void start(BundleContext context) throws Exception
+    {
+        Hashtable<String, String> hashtable = new Hashtable<String, String>();
+        hashtable.put(ReplacementService.SOURCE_NAME, "DIRECTIMAGE");
+        directImageSource = new ReplacementServiceDirectImageImpl();
+
+        directImageSourceServReg =
+            context.registerService(ReplacementService.class.getName(),
+                directImageSource, hashtable);
+        logger.info("Direct Image Link source implementation [STARTED].");
+    }
+
+    /**
+     * Unregisters the Direct image links replacement service.
+     *
+     * @param context BundleContext
+     * @throws Exception if anything goes wrong
+     */
+    public void stop(BundleContext context) throws Exception
+    {
+        directImageSourceServReg.unregister();
+        logger.info("Direct Image Link source implementation [STOPPED].");
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/directimage/ReplacementServiceDirectImageImpl.java b/src/net/java/sip/communicator/impl/replacement/directimage/ReplacementServiceDirectImageImpl.java
new file mode 100644
index 0000000..55987f1
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/directimage/ReplacementServiceDirectImageImpl.java
@@ -0,0 +1,90 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.directimage;
+
+import java.util.regex.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+/**
+ * Implements the {@link ReplacementService} to provide previews for direct
+ * image links.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class ReplacementServiceDirectImageImpl
+    implements ReplacementService
+{
+    /**
+     * The logger for this class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(ReplacementServiceDirectImageImpl.class);
+
+    /**
+     * The regex used to match the link in the message.
+     */
+    public static final String URL_PATTERN =
+        "[^<>]+\\.(?:jpg|png|gif)[^<>]*(?=</a>)";
+
+    /**
+     * Configuration label property name. The label is saved in the languages
+     * file under this property.
+     */
+    public static final String DIRECT_IMAGE_CONFIG_LABEL = "DIRECTIMAGE";
+
+    /**
+     * Constructor for <tt>ReplacementServiceDirectImageImpl</tt>. The source
+     * needs to add itself to {@link ReplacementService} sourceList to be
+     * displayed in the configuration panel.
+     */
+    public ReplacementServiceDirectImageImpl()
+    {
+        sourceList.add(DIRECT_IMAGE_CONFIG_LABEL);
+        logger.trace("Creating a Direct Image Link Source.");
+    }
+
+    /**
+     * Replaces the direct image links in the chat message with their
+     * corresponding thumbnails.
+     * 
+     * @param chatString the original chat message.
+     * @return replaced chat message with the thumbnail image; the original
+     *         message in case of exception.
+     */
+    public String getReplacedMessage(String chatString)
+    {
+        final Pattern p =
+            Pattern.compile(URL_PATTERN, Pattern.CASE_INSENSITIVE
+                | Pattern.DOTALL);
+        Matcher m = p.matcher(chatString);
+
+        int count = 0, startPos = 0;
+        StringBuffer msgBuff = new StringBuffer();
+
+        while (m.find())
+        {
+
+            count++;
+            msgBuff.append(chatString.substring(startPos, m.start()));
+            startPos = m.end();
+
+            String url =
+                "<IMG HEIGHT=\"90\" WIDTH=\"120\" SRC=\"" + m.group(0)
+                    + "\"></IMG>";
+            msgBuff.append(url);
+
+        }
+
+        msgBuff.append(chatString.substring(startPos));
+
+        if (!msgBuff.toString().equals(chatString))
+            return msgBuff.toString();
+
+        return chatString;
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/directimage/directimage.source.manifest.mf b/src/net/java/sip/communicator/impl/replacement/directimage/directimage.source.manifest.mf
new file mode 100644
index 0000000..100de7b
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/directimage/directimage.source.manifest.mf
@@ -0,0 +1,14 @@
+Bundle-Activator: net.java.sip.communicator.impl.replacement.directimage.DirectImageActivator
+Bundle-Name: Direct Image Link Replacement Source
+Bundle-Description: A bundle providing replacement for direct image links.
+Bundle-Vendor: sip-communicator.org
+Bundle-Version: 1.0.0
+System-Bundle: yes
+Export-Package: net.java.sip.communicator.service.replacement
+Import-Package: org.osgi.framework,
+ net.java.sip.communicator.service.configuration,
+ net.java.sip.communicator.service.resources,
+ net.java.sip.communicator.service.configuration.event,
+ net.java.sip.communicator.util,
+ net.java.sip.communicator.service.version,
+ net.java.sip.communicator.service.replacement
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/flickr/FlickrActivator.java b/src/net/java/sip/communicator/impl/replacement/flickr/FlickrActivator.java
new file mode 100644
index 0000000..1a50210
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/flickr/FlickrActivator.java
@@ -0,0 +1,70 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.flickr;
+
+import java.util.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+import org.osgi.framework.*;
+
+/**
+ * Activator for the Flickr source bundle.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class FlickrActivator
+    implements BundleActivator
+{
+    /**
+     * The <tt>Logger</tt> used by the <tt>FlickrActivator</tt> class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(FlickrActivator.class);
+
+    /**
+     * Flickr service registration.
+     */
+    private ServiceRegistration flickrServReg = null;
+
+    /**
+     * The source implementation reference.
+     */
+    private static ReplacementService flickrSource = null;
+
+    /**
+     * Starts the Flickr replacement source bundle
+     *
+     * @param context the <tt>BundleContext</tt> as provided from the OSGi
+     *            framework
+     * @throws Exception if anything goes wrong
+     */
+    public void start(BundleContext context) throws Exception
+    {
+        Hashtable<String, String> hashtable = new Hashtable<String, String>();
+        hashtable.put(ReplacementService.SOURCE_NAME, "FLICKR");
+        flickrSource = new ReplacementServiceFlickrImpl();
+
+        flickrServReg =
+            context.registerService(ReplacementService.class.getName(),
+                flickrSource, hashtable);
+
+        logger.info("Flickr source implementation [STARTED].");
+    }
+
+    /**
+     * Unregisters the Flickr replacement service.
+     *
+     * @param context BundleContext
+     * @throws Exception if anything goes wrong
+     */
+    public void stop(BundleContext context) throws Exception
+    {
+        flickrServReg.unregister();
+        logger.info("Flickr source implementation [STOPPED].");
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/flickr/ReplacementServiceFlickrImpl.java b/src/net/java/sip/communicator/impl/replacement/flickr/ReplacementServiceFlickrImpl.java
new file mode 100644
index 0000000..bd469f7
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/flickr/ReplacementServiceFlickrImpl.java
@@ -0,0 +1,158 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.flickr;
+
+import java.io.*;
+import java.net.*;
+import java.util.regex.*;
+
+import org.json.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+/**
+ * Implements the {@link ReplacementService} to provide previews for Flickr
+ * links.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class ReplacementServiceFlickrImpl
+    implements ReplacementService
+{
+    /**
+     * The logger for this class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(ReplacementServiceFlickrImpl.class);
+
+    /**
+     * The regex used to match the link in the message.
+     */
+    public static final String FLICKR_PATTERN =
+        "(http.*?(www\\.)*?flickr\\.com\\/photos\\/[0-9a-zA-Z_\\-\\@]+\\/([0-9]+)(\\/[^\"\\<]*)*)";
+
+    /**
+     * API Key required to access the Flickr api.
+     */
+    public static final String API_KEY = "8b5d9cee22f0f5154bf4e9846c025484";
+
+    /**
+     * Configuration label property name. The label is saved in the languages
+     * file under this property.
+     */
+    public static final String FLICKR_CONFIG_LABEL = "FLICKR";
+
+    /**
+     * Constructor for <tt>ReplacementServiceFlickrImpl</tt>. The source needs
+     * to add itself to {@link ReplacementService} sourceList to be displayed in
+     * the configuration panel.
+     */
+    public ReplacementServiceFlickrImpl()
+    {
+        sourceList.add(FLICKR_CONFIG_LABEL);
+        logger.trace("Creating a Flickr Source.");
+    }
+
+    /**
+     * Replaces the Flickr image links in the chat message with their
+     * corresponding thumbnails.
+     * 
+     * @param chatString the original chat message.
+     * @return replaced chat message with the thumbnail image; the original
+     *         message in case of no match.
+     */
+    public String getReplacedMessage(String chatString)
+    {
+        final Pattern p =
+            Pattern.compile(FLICKR_PATTERN, Pattern.CASE_INSENSITIVE
+                | Pattern.DOTALL);
+        Matcher m = p.matcher(chatString);
+
+        int count = 0, startPos = 0;
+        StringBuffer msgBuff = new StringBuffer();
+
+        while (m.find())
+        {
+
+            count++;
+            msgBuff.append(chatString.substring(startPos, m.start()));
+            startPos = m.end();
+
+            if (count % 2 == 0)
+            {
+                try
+                {
+                    // API URL
+                    String url =
+                        "http://api.flickr.com/services/rest/?method=flickr.photos.getInfo&api_key="
+                            + API_KEY + "&photo_id=" + m.group(3)
+                            + "&format=json&nojsoncallback=1";
+
+                    URL flickrURL = new URL(url);
+                    URLConnection conn = flickrURL.openConnection();
+
+                    BufferedReader in =
+                        new BufferedReader(new InputStreamReader(conn
+                            .getInputStream()));
+
+                    String inputLine, holder = "";
+
+                    while ((inputLine = in.readLine()) != null)
+                        holder = inputLine;
+                    in.close();
+
+                    JSONObject wrapper = new JSONObject(holder);
+
+                    if (wrapper.getString("stat").equals("ok"))
+                    {
+
+                        JSONObject result = wrapper.getJSONObject("photo");
+
+                        String farmID = result.getString("farm");
+                        String serverID = result.getString("server");
+                        String secret = result.getString("secret");
+
+                        String thumbURL =
+                            "http://farm" + farmID + ".static.flickr.com/"
+                                + serverID + "/" + m.group(3) + "_" + secret
+                                + "_t.jpg";
+
+                        if (!(result.length() == 0))
+                        {
+                            msgBuff
+                                .append("<IMG HEIGHT=\"90\" WIDTH=\"120\" SRC=\"");
+                            msgBuff.append(thumbURL);
+                            msgBuff.append("\"></IMG>");
+                        }
+                    }
+                    else
+                    {
+                        startPos = 0;
+                        msgBuff = new StringBuffer();
+                    }
+                }
+                catch (Exception e)
+                {
+                    startPos = 0;
+                    msgBuff = new StringBuffer();
+                    e.printStackTrace();
+                }
+            }
+            else
+            {
+                msgBuff.append(chatString.substring(m.start(), m.end()));
+            }
+        }
+
+        msgBuff.append(chatString.substring(startPos));
+
+        if (!msgBuff.toString().equals(chatString))
+            return msgBuff.toString();
+
+        return chatString;
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/flickr/flickr.source.manifest.mf b/src/net/java/sip/communicator/impl/replacement/flickr/flickr.source.manifest.mf
new file mode 100644
index 0000000..b3b3d3a
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/flickr/flickr.source.manifest.mf
@@ -0,0 +1,13 @@
+Bundle-Activator: net.java.sip.communicator.impl.replacement.flickr.FlickrActivator
+Bundle-Name: Flickr Preview Replacement Source
+Bundle-Description: A bundle providing processing for flickr previews.
+Bundle-Vendor: sip-communicator.org
+Bundle-Version: 1.0.0
+System-Bundle: yes
+Export-Package: net.java.sip.communicator.service.replacement
+Import-Package: org.osgi.framework,
+ net.java.sip.communicator.service.configuration,
+ net.java.sip.communicator.service.resources,
+ net.java.sip.communicator.util,
+ net.java.sip.communicator.service.replacement,
+ org.apache.http
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/hulu/HuluActivator.java b/src/net/java/sip/communicator/impl/replacement/hulu/HuluActivator.java
new file mode 100644
index 0000000..85ab9f1
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/hulu/HuluActivator.java
@@ -0,0 +1,69 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.hulu;
+
+import java.util.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+import org.osgi.framework.*;
+
+/**
+ * Activator for the Hulu source bundle.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class HuluActivator
+    implements BundleActivator
+{
+    /**
+     * The <tt>Logger</tt> used by the <tt>HuluActivator</tt> class.
+     */
+    private static final Logger logger = Logger.getLogger(HuluActivator.class);
+
+    /**
+     * The hulu service registration.
+     */
+    private ServiceRegistration huluServReg = null;
+
+    /**
+     * The source implementation reference.
+     */
+    private static ReplacementService huluSource = null;
+
+    /**
+     * Starts the Hulu replacement source bundle
+     *
+     * @param context the <tt>BundleContext</tt> as provided from the OSGi
+     *            framework
+     * @throws Exception if anything goes wrong
+     */
+    public void start(BundleContext context) throws Exception
+    {
+        Hashtable<String, String> hashtable = new Hashtable<String, String>();
+        hashtable.put(ReplacementService.SOURCE_NAME, "HULU");
+        huluSource = new ReplacementServiceHuluImpl();
+
+        huluServReg =
+            context.registerService(ReplacementService.class.getName(),
+                huluSource, hashtable);
+
+        logger.info("HULU source implementation [STARTED].");
+    }
+
+    /**
+     * Unregisters the Hulu replacement service.
+     *
+     * @param context BundleContext
+     * @throws Exception if anything goes wrong
+     */
+    public void stop(BundleContext context) throws Exception
+    {
+        huluServReg.unregister();
+        logger.info("Hulu source implementation [STOPPED].");
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/hulu/ReplacementServiceHuluImpl.java b/src/net/java/sip/communicator/impl/replacement/hulu/ReplacementServiceHuluImpl.java
new file mode 100644
index 0000000..21223e5
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/hulu/ReplacementServiceHuluImpl.java
@@ -0,0 +1,138 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.hulu;
+
+import java.io.*;
+import java.net.*;
+import java.util.regex.*;
+
+import org.json.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+/**
+ * Implements the {@link ReplacementService} to provide previews for Hulu links.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class ReplacementServiceHuluImpl
+    implements ReplacementService
+{
+    /**
+     * The logger for this class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(ReplacementServiceHuluImpl.class);
+
+    /**
+     * The regex used to match the link in the message.
+     */
+    public static final String HULU_PATTERN =
+        "(http.*?(www\\.)*?hulu\\.com\\/watch\\/([a-zA-Z0-9_\\-]+))(\\/([^\\\"\\<]*)*)";
+
+    /**
+     * Configuration label property name. The label is saved in the languages
+     * file under this property.
+     */
+    public static final String HULU_CONFIG_LABEL = "HULU";
+
+    /**
+     * Constructor for <tt>ReplacementServiceHuluImpl</tt>. The source needs to
+     * register itself with {@link ReplacementService} sourceList to be
+     * displayed in the configuration panel.
+     */
+    public ReplacementServiceHuluImpl()
+    {
+        sourceList.add(HULU_CONFIG_LABEL);
+        logger.trace("Creating a Hulu Source.");
+    }
+
+    /**
+     * Replaces the Hulu video links in the chat message with their
+     * corresponding thumbnails.
+     *
+     * @param chatString the original chat message.
+     * @return replaced chat message with the thumbnail image; the original
+     *         message in case of no match.
+     */
+    public String getReplacedMessage(String chatString)
+    {
+        final Pattern p =
+            Pattern.compile(HULU_PATTERN, Pattern.CASE_INSENSITIVE
+                | Pattern.DOTALL);
+        Matcher m = p.matcher(chatString);
+
+        int count = 0, startPos = 0;
+        StringBuffer msgBuff = new StringBuffer();
+
+        while (m.find())
+        {
+
+            count++;
+            msgBuff.append(chatString.substring(startPos, m.start()));
+            startPos = m.end();
+
+            if (count % 2 == 0)
+            {
+                try
+                {
+                    String url =
+                        "http://oohembed.com/oohembed/?url=" + m.group(0);
+
+                    URL sourceURL = new URL(url);
+                    URLConnection conn = sourceURL.openConnection();
+
+                    BufferedReader in =
+                        new BufferedReader(new InputStreamReader(conn
+                            .getInputStream()));
+
+                    String inputLine, holder = "";
+
+                    while ((inputLine = in.readLine()) != null)
+                        holder = inputLine;
+                    in.close();
+
+                    JSONObject wrapper = new JSONObject(holder);
+
+                    String thumbUrl = wrapper.getString("thumbnail_url");
+
+                    if (thumbUrl != null)
+                    {
+                        msgBuff
+                            .append("<IMG HEIGHT=\"90\" WIDTH=\"120\" SRC=\"");
+                        msgBuff.append(thumbUrl);
+                        msgBuff.append("\"></IMG>");
+
+                    }
+                    else
+                    {
+                        startPos = 0;
+                        msgBuff = new StringBuffer();
+                    }
+
+                }
+                catch (Exception e)
+                {
+                    startPos = 0;
+                    msgBuff = new StringBuffer();
+                    e.printStackTrace();
+                }
+            }
+            else
+            {
+                msgBuff.append(chatString.substring(m.start(), m.end()));
+            }
+        }
+
+        msgBuff.append(chatString.substring(startPos));
+
+        if (!msgBuff.toString().equals(chatString))
+            return msgBuff.toString();
+
+        return chatString;
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/hulu/hulu.source.manifest.mf b/src/net/java/sip/communicator/impl/replacement/hulu/hulu.source.manifest.mf
new file mode 100644
index 0000000..d3c92fb
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/hulu/hulu.source.manifest.mf
@@ -0,0 +1,13 @@
+Bundle-Activator: net.java.sip.communicator.impl.replacement.hulu.HuluActivator
+Bundle-Name: Hulu Preview Replacement Source
+Bundle-Description: A bundle providing processing for Hulu previews.
+Bundle-Vendor: sip-communicator.org
+Bundle-Version: 1.0.0
+System-Bundle: yes
+Export-Package: net.java.sip.communicator.service.replacement
+Import-Package: org.osgi.framework,
+ net.java.sip.communicator.service.configuration,
+ net.java.sip.communicator.service.resources,
+ net.java.sip.communicator.util,
+ net.java.sip.communicator.service.replacement,
+ org.apache.http
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/metacafe/MetacafeActivator.java b/src/net/java/sip/communicator/impl/replacement/metacafe/MetacafeActivator.java
new file mode 100644
index 0000000..b00f1c0
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/metacafe/MetacafeActivator.java
@@ -0,0 +1,70 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.metacafe;
+
+import java.util.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+import org.osgi.framework.*;
+
+/**
+ * Activator for the Metacafe source bundle.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class MetacafeActivator
+    implements BundleActivator
+{
+    /**
+     * The <tt>Logger</tt> used by the <tt>MetacafeActivator</tt> class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(MetacafeActivator.class);
+
+    /**
+     * The metacafe service registration.
+     */
+    private ServiceRegistration metacafeServReg = null;
+
+    /**
+     * The source implementation reference.
+     */
+    private static ReplacementService metacafeSource = null;
+
+    /**
+     * Starts the Metacafe replacement source bundle
+     *
+     * @param context the <tt>BundleContext</tt> as provided from the OSGi
+     *            framework
+     * @throws Exception if anything goes wrong
+     */
+    public void start(BundleContext context) throws Exception
+    {
+        Hashtable<String, String> hashtable = new Hashtable<String, String>();
+        hashtable.put(ReplacementService.SOURCE_NAME, "METACAFE");
+        metacafeSource = new ReplacementServiceMetacafeImpl();
+
+        metacafeServReg =
+            context.registerService(ReplacementService.class.getName(),
+                metacafeSource, hashtable);
+
+        logger.info("Metacafe source implementation [STARTED].");
+    }
+
+    /**
+     * Unregisters the Metacafe replacement service.
+     *
+     * @param context BundleContext
+     * @throws Exception if anything goes wrong
+     */
+    public void stop(BundleContext context) throws Exception
+    {
+        metacafeServReg.unregister();
+        logger.info("Metacafe source implementation [STOPPED].");
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/metacafe/ReplacementServiceMetacafeImpl.java b/src/net/java/sip/communicator/impl/replacement/metacafe/ReplacementServiceMetacafeImpl.java
new file mode 100644
index 0000000..77dc40a
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/metacafe/ReplacementServiceMetacafeImpl.java
@@ -0,0 +1,95 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.metacafe;
+
+import java.util.regex.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+/**
+ * Implements the {@link ReplacementService} to provide previews for Metacafe
+ * links.
+ *
+ * @author Purvesh Sahoo
+ */
+public class ReplacementServiceMetacafeImpl
+    implements ReplacementService
+{
+    /**
+     * The logger for this class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(ReplacementServiceMetacafeImpl.class);
+
+    /**
+     * The regex used to match the link in the message.
+     */
+    public static final String METACAFE_PATTERN =
+        "(http.*?(www\\.)*?metacafe\\.com\\/watch\\/([a-zA-Z0-9_\\-]+))(\\/[a-zA-Z0-9_\\-\\/]+)*";
+
+    /**
+     * Configuration label property name. The label is saved in the languages
+     * file under this property.
+     */
+    public static final String METACAFE_CONFIG_LABEL = "METACAFE";
+
+    /**
+     * Constructor for <tt>ReplacementServiceMetacafeImpl</tt>. The source needs
+     * to register itself with {@link ReplacementService} sourceList to be
+     * displayed in the configuration panel.
+     */
+    public ReplacementServiceMetacafeImpl()
+    {
+        logger.trace("Creating a Metacafe Source.");
+        sourceList.add(METACAFE_CONFIG_LABEL);
+    }
+
+    /**
+     * Replaces the metacafe video links in the chat message with their
+     * corresponding thumbnails.
+     *
+     * @param chatString the original chat message.
+     * @return replaced chat message with the thumbnail image; the original
+     *         message in case of no match.
+     */
+    public String getReplacedMessage(String chatString)
+    {
+        final Pattern p =
+            Pattern.compile(METACAFE_PATTERN, Pattern.CASE_INSENSITIVE
+                | Pattern.DOTALL);
+        Matcher m = p.matcher(chatString);
+
+        int count = 0, startPos = 0;
+        StringBuffer msgBuff = new StringBuffer();
+
+        while (m.find())
+        {
+            count++;
+            msgBuff.append(chatString.substring(startPos, m.start()));
+            startPos = m.end();
+
+            if (count % 2 == 0)
+            {
+                msgBuff.append("<IMG HEIGHT=\"81\" WIDTH=\"136\" SRC=\"");
+                msgBuff.append("http://www.metacafe.com/thumb/");
+                msgBuff.append(m.group(3));
+                msgBuff.append(".jpg\"></IMG>");
+            }
+            else
+            {
+                msgBuff.append(chatString.substring(m.start(), m.end()));
+            }
+        }
+
+        msgBuff.append(chatString.substring(startPos));
+
+        if (!msgBuff.toString().equals(chatString))
+            return msgBuff.toString();
+
+        return chatString;
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/metacafe/metacafe.source.manifest.mf b/src/net/java/sip/communicator/impl/replacement/metacafe/metacafe.source.manifest.mf
new file mode 100644
index 0000000..fd5d591
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/metacafe/metacafe.source.manifest.mf
@@ -0,0 +1,12 @@
+Bundle-Activator: net.java.sip.communicator.impl.replacement.metacafe.MetacafeActivator
+Bundle-Name: Metacafe Preview Replacement Source
+Bundle-Description: A bundle providing processing for metacafe previews.
+Bundle-Vendor: sip-communicator.org
+Bundle-Version: 1.0.0
+System-Bundle: yes
+Export-Package: net.java.sip.communicator.service.replacement
+Import-Package: org.osgi.framework,
+ net.java.sip.communicator.service.configuration,
+ net.java.sip.communicator.service.resources,
+ net.java.sip.communicator.util,
+ net.java.sip.communicator.service.replacement
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/smiley/ReplacementServiceSmileyImpl.java b/src/net/java/sip/communicator/impl/replacement/smiley/ReplacementServiceSmileyImpl.java
new file mode 100644
index 0000000..06faaa5
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/smiley/ReplacementServiceSmileyImpl.java
@@ -0,0 +1,166 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.smiley;
+
+import java.util.*;
+import java.util.regex.*;
+
+import net.java.sip.communicator.impl.gui.utils.*;
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+/**
+ * Implements the {@link ReplacementService} to provide smiley as replacement
+ * source.
+ *
+ * @author Yana Stamcheva
+ * @author Purvesh Sahoo
+ */
+public class ReplacementServiceSmileyImpl
+    implements ReplacementService
+{
+    /**
+     * The compiled <tt>Pattern</tt> which matches {@link #smileyStrings}.
+     */
+    private static Pattern smileyPattern;
+
+    /**
+     * The <tt>List</tt> of smiley strings which are matched by
+     * {@link #smileyPattern}.
+     */
+    private static final java.util.List<String> smileyStrings =
+        new ArrayList<String>();
+
+    /**
+     * The closing tag of the <code>PLAINTEXT</code> HTML element.
+     */
+    private static final String END_PLAINTEXT_TAG = "</PLAINTEXT>";
+
+    /**
+     * The opening tag of the <code>PLAINTEXT</code> HTML element.
+     */
+    private static final String START_PLAINTEXT_TAG = "<PLAINTEXT>";
+
+    /**
+     * Configuration label property name. The label is saved in the languages
+     * file under this property.
+     */
+    public static final String SMILEY_SOURCE = "SMILEY";
+
+    /**
+     * Replaces the smiley strings in the chat message with their
+     * corresponding smiley image.
+     * 
+     * @param chatString the original chat message.
+     * @return replaced chat message with the smiley images; the original
+     *         message in case of no match.
+     */
+    public String getReplacedMessage(final String chatString)
+    {
+        String startPlainTextTag = START_PLAINTEXT_TAG;
+        String endPlainTextTag = END_PLAINTEXT_TAG;
+        Collection<Smiley> smileys = ImageLoader.getDefaultSmileyPack();
+
+        Matcher m = getSmileyPattern(smileys).matcher(chatString);
+        StringBuffer msgBuffer = new StringBuffer();
+
+        int prevEnd = 0;
+
+        while (m.find())
+        {
+            msgBuffer.append(chatString.substring(prevEnd, m.start()));
+            prevEnd = m.end();
+
+            String smileyString = m.group().trim();
+
+            msgBuffer.append(endPlainTextTag);
+            msgBuffer.append("<IMG SRC=\"");
+            try
+            {
+                msgBuffer.append(ImageLoader.getSmiley(smileyString)
+                    .getImagePath(SmileyActivator.getResources()));
+            }
+            catch (Exception e)
+            {
+                e.printStackTrace();
+            }
+            msgBuffer.append("\" ALT=\"");
+            msgBuffer.append(smileyString);
+            msgBuffer.append("\"></IMG>");
+            msgBuffer.append(startPlainTextTag);
+
+        }
+        msgBuffer.append(chatString.substring(prevEnd));
+
+        return msgBuffer.toString();
+    }
+
+    /**
+     * Gets a compiled <tt>Pattern</tt> which matches the smiley strings of the
+     * specified <tt>Collection</tt> of <tt>Smiley</tt>s.
+     *
+     * @param smileys the <tt>Collection</tt> of <tt>Smiley</tt>s for which to
+     *            get a compiled <tt>Pattern</tt> which matches its smiley
+     *            strings
+     * @return a compiled <tt>Pattern</tt> which matches the smiley strings of
+     *         the specified <tt>Collection</tt> of <tt>Smiley</tt>s
+     */
+    private static Pattern getSmileyPattern(Collection<Smiley> smileys)
+    {
+        synchronized (smileyStrings)
+        {
+            boolean smileyStringsIsEqual;
+
+            if (smileyPattern == null)
+                smileyStringsIsEqual = false;
+            else
+            {
+                smileyStringsIsEqual = true;
+
+                int smileyStringIndex = 0;
+                int smileyStringCount = smileyStrings.size();
+
+                smileyLoop: for (Smiley smiley : smileys)
+                    for (String smileyString : smiley.getSmileyStrings())
+                        if ((smileyStringIndex < smileyStringCount)
+                            && smileyString.equals(smileyStrings
+                                .get(smileyStringIndex)))
+                            smileyStringIndex++;
+                        else
+                        {
+                            smileyStringsIsEqual = false;
+                            break smileyLoop;
+                        }
+                if (smileyStringsIsEqual
+                    && (smileyStringIndex != smileyStringCount))
+                    smileyStringsIsEqual = false;
+            }
+
+            if (!smileyStringsIsEqual)
+            {
+                smileyStrings.clear();
+
+                StringBuffer regex = new StringBuffer();
+
+                regex.append("(?<!(alt='|alt=\"))(");
+                for (Smiley smiley : smileys)
+                    for (String smileyString : smiley.getSmileyStrings())
+                    {
+                        smileyStrings.add(smileyString);
+
+                        regex.append(
+                            GuiUtils.replaceSpecialRegExpChars(smileyString))
+                            .append("|");
+                    }
+                regex = regex.deleteCharAt(regex.length() - 1);
+                regex.append(')');
+
+                smileyPattern = Pattern.compile(regex.toString());
+            }
+            return smileyPattern;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/smiley/SmileyActivator.java b/src/net/java/sip/communicator/impl/replacement/smiley/SmileyActivator.java
new file mode 100644
index 0000000..71c29bf
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/smiley/SmileyActivator.java
@@ -0,0 +1,110 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.smiley;
+
+import java.util.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.service.resources.*;
+import net.java.sip.communicator.util.*;
+
+import org.osgi.framework.*;
+
+/**
+ * Activator for the Smiley source bundle.
+ * @author Purvesh Sahoo
+ */
+public class SmileyActivator
+    implements BundleActivator
+{
+    /**
+     * The <tt>Logger</tt> used by the <tt>SmileyActivator</tt>
+     * class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(SmileyActivator.class);
+
+    /**
+     * The currently valid bundle context.
+     */
+    private static BundleContext bundleContext = null;
+
+    /**
+     * The resources service
+     */
+    private static ResourceManagementService resourcesService;
+
+    /**
+     * The smileyy service registration.
+     */
+    private ServiceRegistration smileyServReg = null;
+
+    /**
+     * The source implementation reference.
+     */
+    private static ReplacementService smileySource = null;
+
+    /**
+     * Starts the Smiley replacement source bundle
+     * 
+     * @param context the <tt>BundleContext</tt> as provided from the OSGi
+     * framework
+     * @throws Exception if anything goes wrong
+     */
+    public void start(BundleContext context) throws Exception
+    {
+        bundleContext = context;
+
+        Hashtable<String, String> hashtable = new Hashtable<String, String>();
+        hashtable.put(ReplacementService.SOURCE_NAME, "SMILEY");
+        smileySource = new ReplacementServiceSmileyImpl();
+
+        smileyServReg =
+            context.registerService(ReplacementService.class.getName(),
+                smileySource, hashtable);
+
+        logger.info("Smiley source implementation [STARTED].");
+    }
+
+    /**
+     * Unregisters the Smiley replacement service.
+     *
+     * @param context BundleContext
+     * @throws Exception if anything goes wrong
+     */
+    public void stop(BundleContext context) throws Exception
+    {
+        smileyServReg.unregister();
+        logger.info("Smiley source implementation [STOPPED].");
+    }
+
+    /**
+     * Returns the <tt>ResourceManagementService</tt>, through which we will
+     * access all resources.
+     *
+     * @return the <tt>ResourceManagementService</tt>, through which we will
+     *         access all resources.
+     */
+    public static ResourceManagementService getResources()
+    {
+        if (resourcesService == null)
+        {
+            ServiceReference serviceReference =
+                bundleContext
+                    .getServiceReference(ResourceManagementService.class
+                        .getName());
+
+            if (serviceReference == null)
+                return null;
+
+            resourcesService =
+                (ResourceManagementService) bundleContext
+                    .getService(serviceReference);
+        }
+        return resourcesService;
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/smiley/smiley.source.manifest.mf b/src/net/java/sip/communicator/impl/replacement/smiley/smiley.source.manifest.mf
new file mode 100644
index 0000000..25b491b
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/smiley/smiley.source.manifest.mf
@@ -0,0 +1,15 @@
+Bundle-Activator: net.java.sip.communicator.impl.replacement.smiley.SmileyActivator
+Bundle-Name: Smiley Replacement Source
+Bundle-Description: A bundle providing processing for smileys.
+Bundle-Vendor: sip-communicator.org
+Bundle-Version: 1.0.0
+System-Bundle: yes
+Export-Package: net.java.sip.communicator.service.replacement
+Import-Package: org.osgi.framework,
+ net.java.sip.communicator.service.configuration,
+ net.java.sip.communicator.service.resources,
+ net.java.sip.communicator.service.neomedia,
+ net.java.sip.communicator.service.configuration.event,
+ net.java.sip.communicator.util,
+ net.java.sip.communicator.service.replacement,
+ net.java.sip.communicator.service.gui
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/twitpic/ReplacementServiceTwitpicImpl.java b/src/net/java/sip/communicator/impl/replacement/twitpic/ReplacementServiceTwitpicImpl.java
new file mode 100644
index 0000000..d62c69f
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/twitpic/ReplacementServiceTwitpicImpl.java
@@ -0,0 +1,89 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.twitpic;
+
+import java.util.regex.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+/**
+ * Implements the {@link ReplacementService} to provide previews for Twitpic
+ * links.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class ReplacementServiceTwitpicImpl
+    implements ReplacementService
+{
+    /**
+     * The logger for this class.
+     */
+    private static final Logger logger
+        = Logger.getLogger(ReplacementServiceTwitpicImpl.class);
+
+    /**
+     * The regex used to match the link in the message.
+     */
+    public static final String TWITPIC_PATTERN =
+        "http:\\/\\/(?:www\\.)?twitpic\\.com\\/([^\\/<]*)(?=<)";
+
+    /**
+     * Configuration label property name. The label is saved in the languages
+     * file under this property.
+     */
+    public static final String TWITPIC_CONFIG_LABEL = "TWITPIC";
+
+    /**
+     * Constructor for <tt>ReplacementServiceTwitpicImpl</tt>. The source needs
+     * to register itself with {@link ReplacementService} sourceList to be
+     * displayed in the configuration panel.
+     */
+    public ReplacementServiceTwitpicImpl()
+    {
+        sourceList.add(TWITPIC_CONFIG_LABEL);
+        logger.trace("Creating a Twitpic Source.");
+    }
+
+    /**
+     * Replaces the twitpic image links in the chat message with their
+     * corresponding thumbnails.
+     * 
+     * @param chatString the original chat message.
+     * @return replaced chat message with the thumbnail image; the original
+     *         message in case of no match.
+     */
+    public String getReplacedMessage(String chatString)
+    {
+        final Pattern p =
+            Pattern.compile(TWITPIC_PATTERN, Pattern.CASE_INSENSITIVE
+                | Pattern.DOTALL);
+        Matcher m = p.matcher(chatString);
+
+        int count = 0, startPos = 0;
+        StringBuffer msgBuff = new StringBuffer();
+
+        while (m.find())
+        {
+            count++;
+            msgBuff.append(chatString.substring(startPos, m.start()));
+            startPos = m.end();
+
+            msgBuff.append("<IMG HEIGHT=\"90\" WIDTH=\"120\" SRC=\"");
+            msgBuff.append("http://twitpic.com/show/thumb/");
+            msgBuff.append(m.group(1));
+            msgBuff.append("\"></IMG>");
+
+        }
+
+        msgBuff.append(chatString.substring(startPos));
+
+        if (!msgBuff.toString().equals(chatString))
+            return msgBuff.toString();
+
+        return chatString;
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/twitpic/TwitpicActivator.java b/src/net/java/sip/communicator/impl/replacement/twitpic/TwitpicActivator.java
new file mode 100644
index 0000000..3737cfd
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/twitpic/TwitpicActivator.java
@@ -0,0 +1,70 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.twitpic;
+
+import java.util.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+import org.osgi.framework.*;
+
+/**
+ * Activator for the Twitpic source bundle.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class TwitpicActivator
+    implements BundleActivator
+{
+    /**
+     * The <tt>Logger</tt> used by the <tt>TwitpicActivator</tt> class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(TwitpicActivator.class);
+
+    /**
+     * The twitpic service registration.
+     */
+    private ServiceRegistration twitpicServReg = null;
+
+    /**
+     * The source implementation reference.
+     */
+    private static ReplacementService twitpicSource = null;
+
+    /**
+     * Starts the Twitpic replacement source bundle
+     *
+     * @param context the <tt>BundleContext</tt> as provided from the OSGi
+     *            framework
+     * @throws Exception if anything goes wrong
+     */
+    public void start(BundleContext context) throws Exception
+    {
+        Hashtable<String, String> hashtable = new Hashtable<String, String>();
+        hashtable.put(ReplacementService.SOURCE_NAME, "TWITPIC");
+        twitpicSource = new ReplacementServiceTwitpicImpl();
+
+        twitpicServReg =
+            context.registerService(ReplacementService.class.getName(),
+                twitpicSource, hashtable);
+
+        logger.info("Twitpic source implementation [STARTED].");
+    }
+
+    /**
+     * Unregisters the Twitpic replacement service.
+     *
+     * @param context BundleContext
+     * @throws Exception if anything goes wrong
+     */
+    public void stop(BundleContext context) throws Exception
+    {
+        twitpicServReg.unregister();
+        logger.info("Twitpic source implementation [STOPPED].");
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/twitpic/twitpic.source.manifest.mf b/src/net/java/sip/communicator/impl/replacement/twitpic/twitpic.source.manifest.mf
new file mode 100644
index 0000000..d8a4cd9
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/twitpic/twitpic.source.manifest.mf
@@ -0,0 +1,12 @@
+Bundle-Activator: net.java.sip.communicator.impl.replacement.twitpic.TwitpicActivator
+Bundle-Name: Twitpic Preview Replacement Source
+Bundle-Description: A bundle providing processing for Twitpic previews.
+Bundle-Vendor: sip-communicator.org
+Bundle-Version: 1.0.0
+System-Bundle: yes
+Export-Package: net.java.sip.communicator.service.replacement
+Import-Package: org.osgi.framework,
+ net.java.sip.communicator.service.configuration,
+ net.java.sip.communicator.service.resources,
+ net.java.sip.communicator.util,
+ net.java.sip.communicator.service.replacement
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/vbox7/ReplacementServiceVbox7Impl.java b/src/net/java/sip/communicator/impl/replacement/vbox7/ReplacementServiceVbox7Impl.java
new file mode 100644
index 0000000..b20ead8
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/vbox7/ReplacementServiceVbox7Impl.java
@@ -0,0 +1,96 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.vbox7;
+
+import java.util.regex.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+/**
+ * Implements the {@link ReplacementService} to provide previews for Vbox7
+ * links.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class ReplacementServiceVbox7Impl
+    implements ReplacementService
+{
+    /**
+     * The logger for this class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(ReplacementServiceVbox7Impl.class);
+
+    /**
+     * The regex used to match the link in the message.
+     */
+    public static final String VBOX7_PATTERN =
+        "(http.*?(www\\.)*?vbox7\\.com\\/play\\:([a-zA-Z0-9_\\-]+))([?&]\\w+=[\\w-]*)*";
+
+    /**
+     * Configuration label property name. The label is saved in the languages
+     * file under this property.
+     */
+    public static final String VBOX7_CONFIG_LABEL = "VBOX7";
+
+    /**
+     * Constructor for <tt>ReplacementServiceVbox7Impl</tt>. The source needs
+     * to register itself with {@link ReplacementService} sourceList to be
+     * displayed in the configuration panel.
+     */
+    public ReplacementServiceVbox7Impl()
+    {
+        sourceList.add(VBOX7_CONFIG_LABEL);
+        logger.trace("Creating a Vbox7 Source.");
+    }
+
+    /**
+     * Replaces the vbox7 video links in the chat message with their
+     * corresponding thumbnails.
+     *
+     * @param chatString the original chat message.
+     * @return replaced chat message with the thumbnail image; the original
+     *         message in case of no match.
+     */
+    public String getReplacedMessage(String chatString)
+    {
+        final Pattern p =
+            Pattern.compile(VBOX7_PATTERN, Pattern.CASE_INSENSITIVE
+                | Pattern.DOTALL);
+        Matcher m = p.matcher(chatString);
+
+        int count = 0, startPos = 0;
+        StringBuffer msgBuff = new StringBuffer();
+
+        while (m.find())
+        {
+            count++;
+            msgBuff.append(chatString.substring(startPos, m.start()));
+            startPos = m.end();
+
+            if (count % 2 == 0)
+            {
+                msgBuff.append("<IMG HEIGHT=\"90\" WIDTH=\"120\" SRC=\"");
+                msgBuff
+                    .append("http://i.vbox7.com/p/");
+                msgBuff.append(m.group(3));
+                msgBuff.append("3.jpg\"></IMG>");
+            }
+            else
+            {
+                msgBuff.append(chatString.substring(m.start(), m.end()));
+            }
+        }
+
+        msgBuff.append(chatString.substring(startPos));
+
+        if (!msgBuff.toString().equals(chatString))
+            return msgBuff.toString();
+
+        return chatString;
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/vbox7/Vbox7Activator.java b/src/net/java/sip/communicator/impl/replacement/vbox7/Vbox7Activator.java
new file mode 100644
index 0000000..16473df
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/vbox7/Vbox7Activator.java
@@ -0,0 +1,70 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.vbox7;
+
+import java.util.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+import org.osgi.framework.*;
+
+/**
+ * Activator for the VBOX7 source bundle.
+ * @author Purvesh Sahoo
+ */
+public class Vbox7Activator
+    implements BundleActivator
+{
+    /**
+     * The <tt>Logger</tt> used by the <tt>Vbox7Activator</tt>
+     * class.
+     */
+    private static final Logger logger = Logger.getLogger(Vbox7Activator.class);
+
+    /**
+     * The vbox7 service registration.
+     */
+    private ServiceRegistration vbox7ServReg = null;
+
+    /**
+     * The source implementation reference.
+     */
+    private static ReplacementService vbox7Source = null;
+
+    /**
+     * Starts the Vbox7 replacement source bundle
+     *
+     * @param context the <tt>BundleContext</tt> as provided from the OSGi
+     * framework
+     * @throws Exception if anything goes wrong
+     */
+    public void start(BundleContext context) throws Exception
+    {
+        Hashtable<String, String> hashtable = new Hashtable<String, String>();
+        hashtable.put(ReplacementService.SOURCE_NAME, "VBOX7");
+        vbox7Source = new ReplacementServiceVbox7Impl();
+
+        vbox7ServReg =
+            context.registerService(ReplacementService.class.getName(),
+                vbox7Source, hashtable);
+
+        logger.info("Vbox7 source implementation [STARTED].");
+    }
+
+    /**
+     * Unregisters the Vbox7 replacement service.
+     *
+     * @param context BundleContext
+     * @throws Exception if anything goes wrong
+     */
+    public void stop(BundleContext context) throws Exception
+    {
+        vbox7ServReg.unregister();
+        logger.info("Vbox7 source implementation [STOPPED].");
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/vbox7/vbox7.source.manifest.mf b/src/net/java/sip/communicator/impl/replacement/vbox7/vbox7.source.manifest.mf
new file mode 100644
index 0000000..2bf7737
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/vbox7/vbox7.source.manifest.mf
@@ -0,0 +1,12 @@
+Bundle-Activator: net.java.sip.communicator.impl.replacement.vbox7.Vbox7Activator
+Bundle-Name: Vbox7 Preview Replacement Source
+Bundle-Description: A bundle providing processing for vbox7 previews.
+Bundle-Vendor: sip-communicator.org
+Bundle-Version: 1.0.0
+System-Bundle: yes
+Export-Package: net.java.sip.communicator.service.replacement
+Import-Package: org.osgi.framework,
+ net.java.sip.communicator.service.configuration,
+ net.java.sip.communicator.service.resources,
+ net.java.sip.communicator.util,
+ net.java.sip.communicator.service.replacement
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/viddler/ReplacementServiceViddlerImpl.java b/src/net/java/sip/communicator/impl/replacement/viddler/ReplacementServiceViddlerImpl.java
new file mode 100644
index 0000000..676ac55
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/viddler/ReplacementServiceViddlerImpl.java
@@ -0,0 +1,145 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.viddler;
+
+import java.io.*;
+import java.net.*;
+import java.util.regex.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+/**
+ * Implements the {@link ReplacementService} to provide previews for Viddler
+ * links.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class ReplacementServiceViddlerImpl
+    implements ReplacementService
+{
+    /**
+     * The logger for this class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(ReplacementServiceViddlerImpl.class);
+
+    /**
+     * The regex used to match the link in the message.
+     */
+    public static final String VIDDLER_PATTERN =
+        "(?:[\\>])(http:\\/\\/(?:www\\.)?viddler\\.com\\/explore\\/(\\w+)\\/videos\\/\\d+.*(?=<\\/A>))";
+
+    /**
+     * API Key required to access the viddler api.
+     */
+    private static final String API_KEY = "1bi6ckuzmklyaqseiqtl";
+
+    /**
+     * Viddler API url.
+     */
+    private static final String sourceURL =
+        "http://api.viddler.com/rest/v1/?method=viddler.videos.getDetailsByUrl&api_key="
+            + API_KEY;
+
+    /**
+     * Configuration label property name. The label is saved in the languages
+     * file under this property.
+     */
+    public static final String VIDDLER_CONFIG_LABEL = "VIDDLER";
+
+    /**
+     * Constructor for <tt>ReplacementServiceViddlerImpl</tt>. The source needs
+     * to add itself to {@link ReplacementService} sourceList to be
+     * displayed in the configuration panel.
+     */
+    public ReplacementServiceViddlerImpl()
+    {
+        sourceList.add(VIDDLER_CONFIG_LABEL);
+        logger.trace("Creating a Viddler Source.");
+    }
+
+    /**
+     * Replaces the viddler video links in the chat message with their
+     * corresponding thumbnails.
+     * 
+     * @param chatString the original chat message.
+     * @return replaced chat message with the thumbnail image; the original
+     *         message in case of no match.
+     */
+    public String getReplacedMessage(String chatString)
+    {
+        final Pattern p =
+            Pattern.compile(VIDDLER_PATTERN, Pattern.CASE_INSENSITIVE
+                | Pattern.DOTALL);
+        Matcher m = p.matcher(chatString);
+
+        int count = 0, startPos = 0;
+        StringBuffer msgBuff = new StringBuffer();
+
+        while (m.find())
+        {
+            count++;
+            msgBuff.append(chatString.substring(startPos, m.start()));
+            startPos = m.end();
+
+            try
+            {
+                String url = sourceURL + "&url=" + m.group(1) + "/";
+
+                URL sourceURL = new URL(url);
+                URLConnection conn = sourceURL.openConnection();
+
+                BufferedReader in =
+                    new BufferedReader(new InputStreamReader(conn
+                        .getInputStream()));
+
+                String inputLine;
+                StringBuffer holder = new StringBuffer();
+
+                while ((inputLine = in.readLine()) != null)
+                    holder.append(inputLine);
+                in.close();
+
+                String startTag = "<thumbnail_url>";
+                String endTag = "</thumbnail_url>";
+
+                String response = holder.toString();
+
+                int start = response.indexOf(startTag) + startTag.length();
+                int end = response.toString().indexOf(endTag);
+                String thumbUrl = response.substring(start, end);
+
+                if (thumbUrl != null)
+                {
+                    msgBuff.append("<IMG HEIGHT=\"90\" WIDTH=\"120\" SRC=\"");
+                    msgBuff.append(thumbUrl);
+                    msgBuff.append("\"></IMG>");
+
+                }
+                else
+                {
+                    startPos = 0;
+                    msgBuff = new StringBuffer();
+                }
+
+            }
+            catch (Exception e)
+            {
+                startPos = 0;
+                msgBuff = new StringBuffer();
+                e.printStackTrace();
+            }
+        }
+
+        msgBuff.append(chatString.substring(startPos));
+
+        if (!msgBuff.toString().equals(chatString))
+            return msgBuff.toString();
+
+        return chatString;
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/viddler/ViddlerActivator.java b/src/net/java/sip/communicator/impl/replacement/viddler/ViddlerActivator.java
new file mode 100644
index 0000000..8ea3dfa
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/viddler/ViddlerActivator.java
@@ -0,0 +1,71 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.viddler;
+
+import java.util.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+import org.osgi.framework.*;
+
+/**
+ * Activator for the Viddler source bundle.
+ * @author Purvesh Sahoo
+ */
+public class ViddlerActivator
+    implements BundleActivator
+{
+
+    /**
+     * The <tt>Logger</tt> used by the <tt>ViddlerActivator</tt>
+     * class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(ViddlerActivator.class);
+
+    /**
+     * The Viddler source service registration.
+     */
+    private ServiceRegistration viddlerServReg = null;
+
+    /**
+     * The source implementation reference.
+     */
+    private static ReplacementService viddlerSource = null;
+
+    /**
+     * Starts this bundle.
+     *
+     * @param context bundle context.
+     * @throws Exception 
+     */
+    public void start(BundleContext context) throws Exception
+    {
+        Hashtable<String, String> hashtable = new Hashtable<String, String>();
+        hashtable.put(ReplacementService.SOURCE_NAME, "VIDDLER");
+        viddlerSource = new ReplacementServiceViddlerImpl();
+
+        viddlerServReg =
+            context.registerService(ReplacementService.class.getName(),
+                viddlerSource, hashtable);
+
+        logger.info("Viddler source implementation [STARTED].");
+    }
+
+    /**
+     * Stops bundle.
+     *
+     * @param bc context.
+     * @throws Exception
+     */
+    public void stop(BundleContext bc) throws Exception
+    {
+        viddlerServReg.unregister();
+        logger.info("Viddler source implementation [STOPPED].");
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/viddler/viddler.source.manifest.mf b/src/net/java/sip/communicator/impl/replacement/viddler/viddler.source.manifest.mf
new file mode 100644
index 0000000..ed053c2
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/viddler/viddler.source.manifest.mf
@@ -0,0 +1,13 @@
+Bundle-Activator: net.java.sip.communicator.impl.replacement.viddler.ViddlerActivator
+Bundle-Name: Viddler Preview Replacement Source
+Bundle-Description: A bundle providing processing for Viddler previews.
+Bundle-Vendor: sip-communicator.org
+Bundle-Version: 1.0.0
+System-Bundle: yes
+Export-Package: net.java.sip.communicator.service.replacement
+Import-Package: org.osgi.framework,
+ net.java.sip.communicator.service.configuration,
+ net.java.sip.communicator.service.resources,
+ net.java.sip.communicator.util,
+ net.java.sip.communicator.service.replacement,
+ org.apache.http
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/vimeo/ReplacementServiceVimeoImpl.java b/src/net/java/sip/communicator/impl/replacement/vimeo/ReplacementServiceVimeoImpl.java
new file mode 100644
index 0000000..b83485e
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/vimeo/ReplacementServiceVimeoImpl.java
@@ -0,0 +1,137 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.vimeo;
+
+import java.net.*;
+import java.util.regex.*;
+
+import org.json.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+import java.io.*;
+
+/**
+ * Implements the {@link ReplacementService} to provide previews for Vimeo
+ * links.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class ReplacementServiceVimeoImpl
+    implements ReplacementService
+{
+    /**
+     * The logger for this class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(ReplacementServiceVimeoImpl.class);
+
+    /**
+     * The regex used to match the link in the message.
+     */
+    public static final String VIMEO_PATTERN =
+        "(http.*?(www\\.)*?vimeo\\.com\\/([a-zA-Z0-9_\\-]+))";
+
+    /**
+     * Configuration label property name. The label is saved in the languages
+     * file under this property.
+     */
+    public static final String VIMEO_CONFIG_LABEL = "VIMEO";
+
+    /**
+     * Constructor for <tt>ReplacementServiceVimeoImpl</tt>. The source needs
+     * to register itself with {@link ReplacementService} sourceList to be
+     * displayed in the configuration panel.
+     */
+    public ReplacementServiceVimeoImpl()
+    {
+        sourceList.add(VIMEO_CONFIG_LABEL);
+        logger.trace("Creating a Vimeo Source.");
+    }
+
+    /**
+     * Replaces the vimeo video links in the chat message with their
+     * corresponding thumbnails.
+     *
+     * @param chatString the original chat message.
+     * @return replaced chat message with the thumbnail image; the original
+     *         message in case of no match.
+     */
+    public String getReplacedMessage(String chatString)
+    {
+        final Pattern p =
+            Pattern.compile(VIMEO_PATTERN, Pattern.CASE_INSENSITIVE
+                | Pattern.DOTALL);
+        Matcher m = p.matcher(chatString);
+
+        int count = 0, startPos = 0;
+        StringBuffer msgBuff = new StringBuffer();
+
+        while (m.find())
+        {
+
+            count++;
+            msgBuff.append(chatString.substring(startPos, m.start()));
+            startPos = m.end();
+
+            if (count % 2 == 0)
+            {
+
+                try
+                {
+                    String url =
+                        "http://vimeo.com/api/v2/video/" + m.group(3) + ".json";
+                    URL vimeoURL = new URL(url);
+                    URLConnection conn = vimeoURL.openConnection();
+
+                    BufferedReader in =
+                        new BufferedReader(new InputStreamReader(conn
+                            .getInputStream()));
+
+                    String inputLine, holder = "";
+
+                    while ((inputLine = in.readLine()) != null)
+                        holder = inputLine;
+                    in.close();
+
+                    JSONArray result = new JSONArray(holder);
+
+                    if (!(result.length() == 0))
+                    {
+                        msgBuff
+                            .append("<IMG HEIGHT=\"150\" WIDTH=\"200\" SRC=\"");
+                        msgBuff.append(result.getJSONObject(0).getString(
+                            "thumbnail_medium"));
+                        msgBuff.append("\"></IMG>");
+                    }
+                    else
+                    {
+                        startPos = 0;
+                        msgBuff = new StringBuffer();
+                    }
+                }
+                catch (Exception e)
+                {
+                    startPos = 0;
+                    msgBuff = new StringBuffer();
+                    e.printStackTrace();
+                }
+            }
+            else
+            {
+                msgBuff.append(chatString.substring(m.start(), m.end()));
+            }
+        }
+
+        msgBuff.append(chatString.substring(startPos));
+
+        if (!msgBuff.toString().equals(chatString))
+            return msgBuff.toString();
+
+        return chatString;
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/vimeo/VimeoActivator.java b/src/net/java/sip/communicator/impl/replacement/vimeo/VimeoActivator.java
new file mode 100644
index 0000000..e5d99f6
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/vimeo/VimeoActivator.java
@@ -0,0 +1,69 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.vimeo;
+
+import java.util.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+import org.osgi.framework.*;
+
+/**
+ * Activator for the Vimeo source bundle.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class VimeoActivator
+    implements BundleActivator
+{
+    /**
+     * The logger for this class.
+     */
+    private static final Logger logger = Logger.getLogger(VimeoActivator.class);
+
+    /**
+     * The vimeo service registration.
+     */
+    private ServiceRegistration vimeoServReg = null;
+
+    /**
+     * The source implementation reference.
+     */
+    private static ReplacementService vimeoSource = null;
+
+    /**
+     * Starts the Vimeo replacement source bundle
+     * 
+     * @param context the <tt>BundleContext</tt> as provided from the OSGi
+     *            framework
+     * @throws Exception if anything goes wrong
+     */
+    public void start(BundleContext context) throws Exception
+    {
+        Hashtable<String, String> hashtable = new Hashtable<String, String>();
+        hashtable.put(ReplacementService.SOURCE_NAME, "VIMEO");
+        vimeoSource = new ReplacementServiceVimeoImpl();
+
+        vimeoServReg =
+            context.registerService(ReplacementService.class.getName(),
+                vimeoSource, hashtable);
+
+        logger.info("Vimeo source implementation [STARTED].");
+    }
+
+    /**
+     * Unregisters the Vimeo replacement service.
+     * 
+     * @param context BundleContext
+     * @throws Exception if anything goes wrong
+     */
+    public void stop(BundleContext context) throws Exception
+    {
+        vimeoServReg.unregister();
+        logger.info("Vimeo source implementation [STOPPED].");
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/vimeo/vimeo.source.manifest.mf b/src/net/java/sip/communicator/impl/replacement/vimeo/vimeo.source.manifest.mf
new file mode 100644
index 0000000..52dfcdf
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/vimeo/vimeo.source.manifest.mf
@@ -0,0 +1,13 @@
+Bundle-Activator: net.java.sip.communicator.impl.replacement.vimeo.VimeoActivator
+Bundle-Name: Vimeo Preview Replacement Source
+Bundle-Description: A bundle providing processing for vimeo previews.
+Bundle-Vendor: sip-communicator.org
+Bundle-Version: 1.0.0
+System-Bundle: yes
+Export-Package: net.java.sip.communicator.service.replacement
+Import-Package: org.osgi.framework,
+ net.java.sip.communicator.service.configuration,
+ net.java.sip.communicator.service.resources,
+ net.java.sip.communicator.util,
+ net.java.sip.communicator.service.replacement,
+ org.apache.http
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/youtube/ReplacementServiceYoutubeImpl.java b/src/net/java/sip/communicator/impl/replacement/youtube/ReplacementServiceYoutubeImpl.java
new file mode 100644
index 0000000..45c8c2e
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/youtube/ReplacementServiceYoutubeImpl.java
@@ -0,0 +1,139 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.youtube;
+
+import java.io.*;
+import java.net.*;
+import java.util.regex.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+import org.json.*;
+
+/**
+ * Implements the {@link ReplacementService} to provide previews for Youtube
+ * links.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class ReplacementServiceYoutubeImpl
+    implements ReplacementService
+{
+    /**
+     * The logger for this class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(ReplacementServiceYoutubeImpl.class);
+
+    /**
+     * The regex used to match the link in the message.
+     */
+    public static String re1 =
+        "(http.*?(www\\.)*?youtube\\.com\\/watch\\?v=([a-zA-Z0-9_\\-]+))([?&]\\w+=[\\w-]+)*";
+
+    /**
+     * Configuration label property name. The label is saved in the languages
+     * file under this property.
+     */
+    public static final String YOUTUBE_CONFIG_LABEL = "YOUTUBE";
+
+    /**
+     * Constructor for <tt>ReplacementServiceYoutubeImpl</tt>. The source needs
+     * to register itself with {@link ReplacementService} sourceList to be
+     * displayed in the configuration panel.
+     */
+    public ReplacementServiceYoutubeImpl()
+    {
+        sourceList.add(YOUTUBE_CONFIG_LABEL);
+        logger.trace("Creating a Youtube Source.");
+    }
+
+    /**
+     * Replaces the youtube video links in the chat message with their
+     * corresponding thumbnails.
+     * 
+     * @param chatString the original chat message.
+     * @return replaced chat message with the thumbnail image; the original
+     *         message in case of no match.
+     */
+    public String getReplacedMessage(final String chatString)
+    {
+        final Pattern p =
+            Pattern.compile(re1, Pattern.CASE_INSENSITIVE | Pattern.DOTALL);
+        Matcher m = p.matcher(chatString);
+
+        int count = 0, startPos = 0;
+        StringBuffer msgBuff = new StringBuffer();
+
+        while (m.find())
+        {
+            count++;
+            msgBuff.append(chatString.substring(startPos, m.start()));
+            startPos = m.end();
+
+            // We only want to replace the inner link text and not the link src.
+            // All even matches are the text we want to replace.
+            if (count % 2 == 0)
+            {
+                try
+                {
+                    String url =
+                        "http://youtube.com/oembed/?url=" + m.group(0);
+
+                    URL sourceURL = new URL(url);
+                    URLConnection conn = sourceURL.openConnection();
+
+                    BufferedReader in =
+                        new BufferedReader(new InputStreamReader(conn
+                            .getInputStream()));
+
+                    String inputLine, holder = "";
+
+                    while ((inputLine = in.readLine()) != null)
+                        holder = inputLine;
+                    in.close();
+
+                    JSONObject wrapper = new JSONObject(holder);
+
+                    String thumbUrl = wrapper.getString("thumbnail_url");
+
+                    if (thumbUrl != null)
+                    {
+                        msgBuff
+                            .append("<IMG HEIGHT=\"90\" WIDTH=\"120\" SRC=\"");
+                        msgBuff.append(thumbUrl);
+                        msgBuff.append("\"></IMG>");
+
+                    }
+                    else
+                    {
+                        startPos = 0;
+                        msgBuff = new StringBuffer();
+                    }
+
+                }
+                catch (Exception e)
+                {
+                    startPos = 0;
+                    msgBuff = new StringBuffer();
+                    e.printStackTrace();
+                }
+            }
+            else
+            {
+                msgBuff.append(chatString.substring(m.start(), m.end()));
+            }
+        }
+
+        msgBuff.append(chatString.substring(startPos));
+
+        if (!msgBuff.toString().equals(chatString))
+            return msgBuff.toString();
+
+        return chatString;
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/youtube/YoutubeActivator.java b/src/net/java/sip/communicator/impl/replacement/youtube/YoutubeActivator.java
new file mode 100644
index 0000000..0b76c49
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/youtube/YoutubeActivator.java
@@ -0,0 +1,69 @@
+/*
+ * SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
+ * 
+ * Distributable under LGPL license. See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.replacement.youtube;
+
+import java.util.*;
+
+import net.java.sip.communicator.service.replacement.*;
+import net.java.sip.communicator.util.*;
+
+import org.osgi.framework.*;
+
+/**
+ * Activator for the Youtube source bundle.
+ * 
+ * @author Purvesh Sahoo
+ */
+public class YoutubeActivator
+    implements BundleActivator
+{
+    /**
+     * The <tt>Logger</tt> used by the <tt>YoutubeActivator</tt> class.
+     */
+    private static final Logger logger =
+        Logger.getLogger(YoutubeActivator.class);
+
+    /**
+     * The youtube source service registration.
+     */
+    private ServiceRegistration youtubeSourceServReg = null;
+
+    /**
+     * The source implementation reference.
+     */
+    private static ReplacementService youtubeSource = null;
+
+    /**
+     * Starts the Youtube replacement source bundle
+     *
+     * @param context the <tt>BundleContext</tt> as provided from the OSGi
+     *            framework
+     * @throws Exception if anything goes wrong
+     */
+    public void start(BundleContext context) throws Exception
+    {
+        Hashtable<String, String> hashtable = new Hashtable<String, String>();
+        hashtable.put(ReplacementService.SOURCE_NAME, "YOUTUBE");
+        youtubeSource = new ReplacementServiceYoutubeImpl();
+
+        youtubeSourceServReg =
+            context.registerService(ReplacementService.class.getName(),
+                youtubeSource, hashtable);
+        logger.info("Youtube source implementation [STARTED].");
+    }
+
+    /**
+     * Unregisters the Youtube replacement service.
+     * 
+     * @param context BundleContext
+     * @throws Exception if anything goes wrong
+     */
+    public void stop(BundleContext context) throws Exception
+    {
+        youtubeSourceServReg.unregister();
+        logger.info("Youtube source implementation [STOPPED].");
+    }
+}
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/replacement/youtube/youtube.source.manifest.mf b/src/net/java/sip/communicator/impl/replacement/youtube/youtube.source.manifest.mf
new file mode 100644
index 0000000..18b1d90
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/replacement/youtube/youtube.source.manifest.mf
@@ -0,0 +1,14 @@
+Bundle-Activator: net.java.sip.communicator.impl.replacement.youtube.YoutubeActivator
+Bundle-Name: Youtube Replacement Source
+Bundle-Description: A bundle providing replacement for youtube links.
+Bundle-Vendor: sip-communicator.org
+Bundle-Version: 1.0.0
+System-Bundle: yes
+Export-Package: net.java.sip.communicator.service.replacement
+Import-Package: org.osgi.framework,
+ net.java.sip.communicator.service.configuration,
+ net.java.sip.communicator.service.resources,
+ net.java.sip.communicator.service.configuration.event,
+ net.java.sip.communicator.util,
+ net.java.sip.communicator.service.replacement,
+ org.apache.http
\ No newline at end of file