gui browse/feed/chat actions from upload table

core/src/main/groovy/com/muwire/core/chat/ChatManager.groovy

@@ -29,6 +29,10 @@ class ChatManager {
         timer.schedule({connect()} as TimerTask, 1000, 1000)
     }
     
+    boolean isConnected(Persona p) {
+        clients.containsKey(p)
+    }
+    
     void onUIConnectChatEvent(UIConnectChatEvent e) {
         if (e.host == me) { 
             eventBus.publish(new ChatConnectionEvent(status : ChatConnectionAttemptStatus.SUCCESSFUL, 

core/src/main/groovy/com/muwire/core/upload/ContentUploader.groovy

@@ -152,4 +152,9 @@ class ContentUploader extends Uploader {
     public boolean isChatEnabled() {
         request.chat
     }
+
+    @Override
+    public Persona getDownloaderPersona() {
+        request.downloader
+    }
 }

core/src/main/groovy/com/muwire/core/upload/HashListUploader.groovy

@@ -4,6 +4,7 @@ import java.nio.ByteBuffer
 import java.nio.charset.StandardCharsets
 
 import com.muwire.core.InfoHash
+import com.muwire.core.Persona
 import com.muwire.core.connection.Endpoint
 
 import net.i2p.data.Base64
@@ -90,4 +91,9 @@ class HashListUploader extends Uploader {
     public boolean isChatEnabled() {
         return false;
     }
+
+    @Override
+    public Persona getDownloaderPersona() {
+        request.downloader
+    }
 }

core/src/main/groovy/com/muwire/core/upload/Uploader.groovy

@@ -6,6 +6,7 @@ import java.nio.charset.StandardCharsets
 import java.nio.file.Files
 import java.nio.file.StandardOpenOption
 
+import com.muwire.core.Persona
 import com.muwire.core.connection.Endpoint
 
 abstract class Uploader {
@@ -31,6 +32,7 @@ abstract class Uploader {
     }
 
     abstract String getName();
+    
 
     /**
      * @return an integer between 0 and 100
@@ -38,6 +40,7 @@ abstract class Uploader {
     abstract int getProgress();
 
     abstract String getDownloader();
+    abstract Persona getDownloaderPersona();
 
     abstract int getDonePieces();