Release 0.2.4

Fixes i2cp bug while connecting to remote router

README.md

@@ -4,11 +4,11 @@ MuWire is an easy to use file-sharing program which offers anonymity using [I2P
 
 It is inspired by the LimeWire Gnutella client and developped by a former LimeWire developer.
 
-The first stable release - 0.1.0 is avaiable for download at http://muwire.com.  You can find technical documentation in the "doc" folder.
+The current stable release - 0.1.5 is avaiable for download at http://muwire.com.  You can find technical documentation in the "doc" folder.
 
 ### Building
 
-You need JDK 8 or newer.  After installing that and setting up the appropriate paths, just type
+You need JRE 8 or newer.  After installing that and setting up the appropriate paths, just type
 
 ```
 ./gradlew assemble 
@@ -31,5 +31,3 @@ The first time you run MuWire it will ask you to select a nickname.  This nickna
 ### Known bugs and limitations
 
 * Many UI features you would expect are not there yet
-* Downloads in progress do not get remembered between restarts
-

TODO.md

@@ -0,0 +1,42 @@
+# TODO List
+
+Not in any particular order yet
+
+### Big Items
+
+##### Alternate Locations
+
+This helps peers discover new sources for a file while the download is in progress.  Also makes sharing of partial files possible.
+
+##### Bloom Filters
+
+This reduces query traffic by not sending last hop queries to peers that definitely do not have the file
+
+##### Two-tier Topology
+
+This helps with scalability
+
+##### Trust List Sharing
+
+For helping users make better decisions whom to trust
+
+##### Content Control Panel
+
+To allow every user to not route queries for content they do not like.  This is mostly GUI work, the backend part is simple
+
+##### Packaging With JRE, Embedded Router
+
+For ease of deployment for new users, and so that users do not need to run a separate I2P router
+
+##### Web UI, REST Interface, etc.
+
+Basically any non-gui non-cli user interface
+
+### Small Items
+
+* Detect if router is dead and show warning or exit
+* Wrapper of some kind for in-place upgrades
+* Download file sequentially
+* Unsharing of files
+* Multiple-selection download, Ctrl-A
+* Automatic sharing of new files in shared directories (more like medium item)

cli/src/main/groovy/com/muwire/cli/Cli.groovy

@@ -34,7 +34,7 @@ class Cli {
         
         Core core 
         try {
-            core = new Core(props, home, "0.1.2")
+            core = new Core(props, home, "0.2.4")
         } catch (Exception bad) {
             bad.printStackTrace(System.out)
             println "Failed to initialize core, exiting"

cli/src/main/groovy/com/muwire/cli/CliDownloader.groovy

@@ -53,7 +53,7 @@ class CliDownloader {
 
         Core core
         try {
-            core = new Core(props, home, "0.1.2")
+            core = new Core(props, home, "0.2.4")
         } catch (Exception bad) {
             bad.printStackTrace(System.out)
             println "Failed to initialize core, exiting"

core/src/main/groovy/com/muwire/core/Core.groovy

@@ -12,6 +12,7 @@ import com.muwire.core.connection.I2PConnector
 import com.muwire.core.connection.LeafConnectionManager
 import com.muwire.core.connection.UltrapeerConnectionManager
 import com.muwire.core.download.DownloadManager
+import com.muwire.core.download.UIDownloadCancelledEvent
 import com.muwire.core.download.UIDownloadEvent
 import com.muwire.core.files.FileDownloadedEvent
 import com.muwire.core.files.FileHashedEvent
@@ -68,6 +69,7 @@ public class Core {
     private final ConnectionAcceptor connectionAcceptor
     private final ConnectionEstablisher connectionEstablisher
     private final HasherService hasherService
+    private final DownloadManager downloadManager
         
     public Core(MuWireSettings props, File home, String myVersion) {
         this.home = home		
@@ -90,9 +92,10 @@ public class Core {
         def i2pOptionsFile = new File(home,"i2p.properties")
         if (i2pOptionsFile.exists()) {
             i2pOptionsFile.withInputStream { i2pOptions.load(it) }
-            if (!i2pOptions.hasProperty("inbound.nickname"))
+
+            if (!i2pOptions.containsKey("inbound.nickname"))
                 i2pOptions["inbound.nickname"] = "MuWire"
-            if (!i2pOptions.hasProperty("outbound.nickname"))
+            if (!i2pOptions.containsKey("outbound.nickname"))
                 i2pOptions["outbound.nickname"] = "MuWire"
         } else {
             i2pOptions["inbound.nickname"] = "MuWire"
@@ -101,13 +104,15 @@ public class Core {
             i2pOptions["inbound.quantity"] = "2"
             i2pOptions["outbound.length"] = "3"
             i2pOptions["outbound.quantity"] = "2"
+            i2pOptions["i2cp.tcp.host"] = "127.0.0.1"
+            i2pOptions["i2cp.tcp.port"] = "7654"
         }
         
         // options like tunnel length and quantity
 		I2PSession i2pSession
 		I2PSocketManager socketManager
 		keyDat.withInputStream {
-			socketManager = new I2PSocketManagerFactory().createManager(it, i2pOptions)
+			socketManager = new I2PSocketManagerFactory().createManager(it, i2pOptions["i2cp.tcp.host"], i2pOptions["i2cp.tcp.port"].toInteger(), i2pOptions)
 		}
 		socketManager.getDefaultOptions().setReadTimeout(60000)
 		socketManager.getDefaultOptions().setConnectTimeout(30000)
@@ -156,7 +161,7 @@ public class Core {
 		eventBus.register(SearchEvent.class, fileManager)
 		
 		log.info "initializing persistence service"
-		persisterService = new PersisterService(new File(home, "files.json"), eventBus, 5000, fileManager)
+		persisterService = new PersisterService(new File(home, "files.json"), eventBus, 15000, fileManager)
         
 		log.info("initializing host cache")
 		File hostStorage = new File(home, "hosts.json")
@@ -191,8 +196,11 @@ public class Core {
 		eventBus.register(ResultsEvent.class, searchManager)
 		
         log.info("initializing download manager")
-        DownloadManager downloadManager = new DownloadManager(eventBus, i2pConnector, new File(home, "incompletes"), me)
+        downloadManager = new DownloadManager(eventBus, i2pConnector, home, me)
         eventBus.register(UIDownloadEvent.class, downloadManager)
+        eventBus.register(UILoadedEvent.class, downloadManager)
+        eventBus.register(FileDownloadedEvent.class, downloadManager)
+        eventBus.register(UIDownloadCancelledEvent.class, downloadManager)
         
         log.info("initializing upload manager")
         UploadManager uploadManager = new UploadManager(eventBus, fileManager)
@@ -226,6 +234,13 @@ public class Core {
     }
     
     public void shutdown() {
+        log.info("shutting down download manageer")
+        downloadManager.shutdown()
+        log.info("shutting down connection acceeptor")
+        connectionAcceptor.stop()
+        log.info("shutting down connection establisher")
+        connectionEstablisher.stop()
+        log.info("shutting down connection manager")
         connectionManager.shutdown()
     }
 
@@ -253,7 +268,7 @@ public class Core {
             }
         }
         
-        Core core = new Core(props, home, "0.1.2")
+        Core core = new Core(props, home, "0.2.4")
         core.startServices()
         
         // ... at the end, sleep or execute script

core/src/main/groovy/com/muwire/core/MuWireSettings.groovy

@@ -13,6 +13,7 @@ class MuWireSettings {
     String sharedFiles
     CrawlerResponse crawlerResponse
     boolean shareDownloadedFiles
+    boolean watchSharedDirectories
     
 	MuWireSettings() {
         this(new Properties())
@@ -29,6 +30,7 @@ class MuWireSettings {
         downloadRetryInterval = Integer.parseInt(props.getProperty("downloadRetryInterval","15"))
         updateCheckInterval = Integer.parseInt(props.getProperty("updateCheckInterval","36"))
         shareDownloadedFiles = Boolean.parseBoolean(props.getProperty("shareDownloadedFiles","true"))
+        watchSharedDirectories = Boolean.parseBoolean(props.getProperty("watchSharedDirectories","true"))
 	}
     
     void write(OutputStream out) throws IOException {
@@ -41,6 +43,7 @@ class MuWireSettings {
         props.setProperty("downloadRetryInterval", String.valueOf(downloadRetryInterval))
         props.setProperty("updateCheckInterval", String.valueOf(updateCheckInterval))
         props.setProperty("shareDownloadedFiles", String.valueOf(shareDownloadedFiles))
+        props.setProperty("watchSharedDirectories", String.valueOf(watchSharedDirectories))
         if (sharedFiles != null)
             props.setProperty("sharedFiles", sharedFiles)
         props.store(out, "")

core/src/main/groovy/com/muwire/core/UILoadedEvent.groovy

@@ -0,0 +1,4 @@
+package com.muwire.core
+
+class UILoadedEvent extends Event {
+}

core/src/main/groovy/com/muwire/core/connection/Connection.groovy

@@ -76,9 +76,9 @@ abstract class Connection implements Closeable {
 			return
 		}
         log.info("closing $name")
-        endpoint.close()
 		reader.interrupt()
 		writer.interrupt()
+		endpoint.close()
 		eventBus.publish(new DisconnectionEvent(destination: endpoint.destination))
 	}
 	

core/src/main/groovy/com/muwire/core/connection/ConnectionAcceptor.groovy

@@ -17,6 +17,8 @@ import com.muwire.core.upload.UploadManager
 import com.muwire.core.search.InvalidSearchResultException
 import com.muwire.core.search.ResultsParser
 import com.muwire.core.search.SearchManager
+import com.muwire.core.search.UIResultBatchEvent
+import com.muwire.core.search.UIResultEvent
 import com.muwire.core.search.UnexpectedResultsException
 
 import groovy.json.JsonOutput
@@ -39,6 +41,8 @@ class ConnectionAcceptor {
 	final ExecutorService acceptorThread
 	final ExecutorService handshakerThreads
     
+    private volatile shutdown
+	
 	ConnectionAcceptor(EventBus eventBus, UltrapeerConnectionManager manager,
 		MuWireSettings settings, I2PAcceptor acceptor, HostCache hostCache,
 		TrustService trustService, SearchManager searchManager, UploadManager uploadManager,
@@ -73,11 +77,13 @@ class ConnectionAcceptor {
 	}
 	
 	void stop() {
+        shutdown = true
 		acceptorThread.shutdownNow()
 		handshakerThreads.shutdownNow()
 	}
 	
 	private void acceptLoop() {
+        try {
 		while(true) {
 			def incoming = acceptor.accept()
 			log.info("accepted connection from ${incoming.destination.toBase32()}")
@@ -93,6 +99,11 @@ class ConnectionAcceptor {
 			}
 			handshakerThreads.execute({processIncoming(incoming)} as Runnable)
 		}
+        } catch (Exception e) {
+            log.log(Level.WARNING, "exception in accept loop",e)
+            if (!shutdown)
+                throw e
+        }
 	}
 	
 	private void processIncoming(Endpoint e) {
@@ -108,6 +119,9 @@ class ConnectionAcceptor {
 				case (byte)'G':
 					processGET(e)
 					break
+                case (byte)'H':
+                    processHashList(e)
+                    break
                 case (byte)'P':
                     processPOST(e)
                     break
@@ -178,7 +192,16 @@ class ConnectionAcceptor {
         dis.readFully(et)
         if (et != "ET ".getBytes(StandardCharsets.US_ASCII))
             throw new IOException("Invalid GET connection")
-        uploadManager.processEndpoint(e)
+        uploadManager.processGET(e)
+	}
+    
+    private void processHashList(Endpoint e) {
+        byte[] ashList = new byte[8]
+        final DataInputStream dis = new DataInputStream(e.getInputStream())
+        dis.readFully(ashList)
+        if (ashList != "ASHLIST ".getBytes(StandardCharsets.US_ASCII))
+            throw new IOException("Invalid HASHLIST connection")
+        uploadManager.processHashList(e)
     }
     
     private void processPOST(final Endpoint e) throws IOException {
@@ -204,13 +227,15 @@ class ConnectionAcceptor {
             if (sender.destination != e.getDestination())
                 throw new IOException("Sender destination mismatch expected $e.getDestination(), got $sender.destination")
             int nResults = dis.readUnsignedShort()
+            UIResultEvent[] results = new UIResultEvent[nResults]
             for (int i = 0; i < nResults; i++) {
                 int jsonSize = dis.readUnsignedShort()
                 byte [] payload = new byte[jsonSize]
                 dis.readFully(payload)
                 def json = slurper.parse(payload)
-                eventBus.publish(ResultsParser.parse(sender, resultsUUID, json))
+                results[i] = ResultsParser.parse(sender, resultsUUID, json)
             }
+            eventBus.publish(new UIResultBatchEvent(uuid: resultsUUID, results: results))
         } catch (IOException | UnexpectedResultsException | InvalidSearchResultException bad) {
             log.log(Level.WARNING, "failed to process POST", bad)
         } finally {

core/src/main/groovy/com/muwire/core/connection/Endpoint.groovy

@@ -1,6 +1,7 @@
 package com.muwire.core.connection
 
 import java.util.concurrent.atomic.AtomicBoolean
+import java.util.logging.Level
 
 import groovy.util.logging.Log
 import net.i2p.data.Destination
@@ -24,7 +25,7 @@ class Endpoint implements Closeable {
 	@Override
 	public void close() {
 		if (!closed.compareAndSet(false, true)) {
-			log.warning("Close loop detected for ${destination.toBase32()}", new Exception())
+			log.log(Level.WARNING,"Close loop detected for ${destination.toBase32()}", new Exception())
 			return
 		}
 		if (inputStream != null) {
@@ -34,7 +35,7 @@ class Endpoint implements Closeable {
 			try {outputStream.close()} catch (Exception ignore) {}
 		}
         if (toClose != null) {
-            try {toClose.close()} catch (Exception ignore) {}
+            try {toClose.reset()} catch (Exception ignore) {}
         }
 	}
 	

core/src/main/groovy/com/muwire/core/connection/UltrapeerConnectionManager.groovy

@@ -104,8 +104,8 @@ class UltrapeerConnectionManager extends ConnectionManager {
     
     @Override
     void shutdown() {
-        peerConnections.each {k,v -> v.close() }
-        leafConnections.each {k,v -> v.close() }
+        peerConnections.values().stream().parallel().forEach({v -> v.close()})
+        leafConnections.values().stream().parallel().forEach({v -> v.close()})
         peerConnections.clear()
         leafConnections.clear()
     }

core/src/main/groovy/com/muwire/core/download/DownloadManager.groovy

@@ -1,12 +1,21 @@
 package com.muwire.core.download
 
 import com.muwire.core.connection.I2PConnector
+import com.muwire.core.files.FileDownloadedEvent
+import com.muwire.core.files.FileHasher
+import com.muwire.core.util.DataUtil
 
+import groovy.json.JsonBuilder
+import groovy.json.JsonOutput
+import groovy.json.JsonSlurper
 import net.i2p.data.Base64
 import net.i2p.data.Destination
+import net.i2p.util.ConcurrentHashSet
 
 import com.muwire.core.EventBus
+import com.muwire.core.InfoHash
 import com.muwire.core.Persona
+import com.muwire.core.UILoadedEvent
 
 import java.util.concurrent.Executor
 import java.util.concurrent.Executors
@@ -16,13 +25,16 @@ public class DownloadManager {
     private final EventBus eventBus
     private final I2PConnector connector
     private final Executor executor
-    private final File incompletes
+    private final File incompletes, home
     private final Persona me
     
-    public DownloadManager(EventBus eventBus, I2PConnector connector, File incompletes, Persona me) {
+    private final Set<Downloader> downloaders = new ConcurrentHashSet<>()
+    
+    public DownloadManager(EventBus eventBus, I2PConnector connector, File home, Persona me) {
         this.eventBus = eventBus
         this.connector = connector
-        this.incompletes = incompletes
+        this.incompletes = new File(home,"incompletes")
+        this.home = home
         this.me = me
         
         incompletes.mkdir()
@@ -50,11 +62,82 @@ public class DownloadManager {
         def downloader = new Downloader(eventBus, this, me, e.target, size,
             infohash, pieceSize, connector, destinations,
             incompletes)
+        downloaders.add(downloader)
+        persistDownloaders()
         executor.execute({downloader.download()} as Runnable)
         eventBus.publish(new DownloadStartedEvent(downloader : downloader))
     }
     
+    public void onUIDownloadCancelledEvent(UIDownloadCancelledEvent e) {
+        downloaders.remove(e.downloader)
+        persistDownloaders()
+    }
+    
     void resume(Downloader downloader) {
         executor.execute({downloader.download() as Runnable})
     }
+    
+    void onUILoadedEvent(UILoadedEvent e) {
+        File downloadsFile = new File(home, "downloads.json")
+        if (!downloadsFile.exists())
+            return
+        def slurper = new JsonSlurper()
+        downloadsFile.eachLine {
+            def json = slurper.parseText(it)
+            File file = new File(DataUtil.readi18nString(Base64.decode(json.file)))
+            def destinations = new HashSet<>()
+            json.destinations.each { destination -> 
+                destinations.add new Destination(destination)
+            }
+            InfoHash infoHash
+            if (json.hashList != null) {
+                byte[] hashList = Base64.decode(json.hashList)
+                infoHash = InfoHash.fromHashList(hashList)
+            } else {
+                byte [] root = Base64.decode(json.hashRoot)
+                infoHash = new InfoHash(root)
+            }
+            def downloader = new Downloader(eventBus, this, me, file, (long)json.length,
+                infoHash, json.pieceSizePow2, connector, destinations, incompletes)
+            downloaders.add(downloader)
+            downloader.download()
+            eventBus.publish(new DownloadStartedEvent(downloader : downloader))
+        }
+    }
+    
+    void onFileDownloadedEvent(FileDownloadedEvent e) {
+        downloaders.remove(e.downloader)
+        persistDownloaders()
+    }
+    
+    private void persistDownloaders() {
+        File downloadsFile = new File(home,"downloads.json")
+        downloadsFile.withPrintWriter { writer -> 
+            downloaders.each { downloader ->
+                if (!downloader.cancelled) {
+                    def json = [:]
+                    json.file = Base64.encode(DataUtil.encodei18nString(downloader.file.getAbsolutePath()))
+                    json.length = downloader.length
+                    json.pieceSizePow2 = downloader.pieceSizePow2
+                    def destinations = []
+                    downloader.destinations.each {
+                        destinations << it.toBase64()
+                    }
+                    json.destinations = destinations
+                    
+                    InfoHash infoHash = downloader.getInfoHash()
+                    if (infoHash.hashList != null)
+                        json.hashList = Base64.encode(infoHash.hashList)
+                    else
+                        json.hashRoot = Base64.encode(infoHash.getRoot())
+                    writer.println(JsonOutput.toJson(json))
+                }
+            }
+        }
+    }
+    
+    public void shutdown() {
+        downloaders.each { it.stop() }
+        Downloader.executorService.shutdownNow()
+    }
 }

core/src/main/groovy/com/muwire/core/download/DownloadSession.groovy

@@ -16,6 +16,7 @@ import java.nio.file.Files
 import java.nio.file.StandardOpenOption
 import java.security.MessageDigest
 import java.security.NoSuchAlgorithmException
+import java.util.logging.Level
 
 @Log
 class DownloadSession {
@@ -23,7 +24,7 @@ class DownloadSession {
     private static int SAMPLES = 10
     
     private final String meB64
-    private final Pieces downloaded, claimed
+    private final Pieces pieces
     private final InfoHash infoHash
     private final Endpoint endpoint
     private final File file
@@ -36,11 +37,10 @@ class DownloadSession {
     
     private ByteBuffer mapped
     
-    DownloadSession(String meB64, Pieces downloaded, Pieces claimed, InfoHash infoHash, Endpoint endpoint, File file, 
+    DownloadSession(String meB64, Pieces pieces, InfoHash infoHash, Endpoint endpoint, File file, 
         int pieceSize, long fileLength) {
         this.meB64 = meB64
-        this.downloaded = downloaded
-        this.claimed = claimed
+        this.pieces = pieces
         this.endpoint = endpoint
         this.infoHash = infoHash
         this.file = file
@@ -63,19 +63,10 @@ class DownloadSession {
         OutputStream os = endpoint.getOutputStream()
         InputStream is = endpoint.getInputStream()
         
-        int piece
-        while(true) {
-            piece = downloaded.getRandomPiece()
-            if (claimed.isMarked(piece)) {
-                if (downloaded.donePieces() + claimed.donePieces() == downloaded.nPieces) {
-                    log.info("all pieces claimed")
+        int piece = pieces.claim()
+        if (piece == -1)
             return false
-                }
-                continue
-            }
-            break
-        }
-        claimed.markDownloaded(piece)
+        boolean unclaim = true
             
         log.info("will download piece $piece")
         
@@ -85,7 +76,6 @@ class DownloadSession {
         
         String root = Base64.encode(infoHash.getRoot())
                 
-        FileChannel channel
         try {
             os.write("GET $root\r\n".getBytes(StandardCharsets.US_ASCII))
             os.write("Range: $start-$end\r\n".getBytes(StandardCharsets.US_ASCII))
@@ -106,7 +96,7 @@ class DownloadSession {
             if (!code.startsWith("200 ")) {
                 log.warning("unknown code $code")
                 endpoint.close()
-                return
+                return false
             }
 
             // parse all headers
@@ -131,10 +121,12 @@ class DownloadSession {
             if (receivedStart != start || receivedEnd != end) {
                 log.warning("We don't support mismatching ranges yet")
                 endpoint.close()
-                return
+                return false
             }
             
             // start the download
+            FileChannel channel
+            try {
                 channel = Files.newByteChannel(file.toPath(), EnumSet.of(StandardOpenOption.READ, StandardOpenOption.WRITE,
                         StandardOpenOption.SPARSE, StandardOpenOption.CREATE)) // TODO: double-check, maybe CREATE_NEW
                 mapped = channel.map(FileChannel.MapMode.READ_WRITE, start, end - start + 1)
@@ -165,12 +157,15 @@ class DownloadSession {
                 System.arraycopy(infoHash.getHashList(), piece * 32, expected, 0, 32)
                 if (hash != expected)
                     throw new BadHashException()
-            
-            downloaded.markDownloaded(piece)        
             } finally {
-            claimed.clear(piece)
                 try { channel?.close() } catch (IOException ignore) {}
             }
+            pieces.markDownloaded(piece)
+            unclaim = false
+        } finally {
+            if (unclaim)
+                pieces.unclaim(piece)
+        }
         return true
     }
     

core/src/main/groovy/com/muwire/core/download/Downloader.groovy

@@ -7,6 +7,7 @@ import com.muwire.core.connection.Endpoint
 import java.util.concurrent.ConcurrentHashMap
 import java.util.concurrent.ExecutorService
 import java.util.concurrent.Executors
+import java.util.concurrent.atomic.AtomicBoolean
 import java.util.logging.Level
 
 import com.muwire.core.Constants
@@ -20,8 +21,8 @@ import net.i2p.data.Destination
 
 @Log
 public class Downloader {
-    public enum DownloadState { CONNECTING, DOWNLOADING, FAILED, CANCELLED, FINISHED }
-    private enum WorkerState { CONNECTING, DOWNLOADING, FINISHED}
+    public enum DownloadState { CONNECTING, HASHLIST, DOWNLOADING, FAILED, CANCELLED, FINISHED }
+    private enum WorkerState { CONNECTING, HASHLIST, DOWNLOADING, FINISHED}
     
     private static final ExecutorService executorService = Executors.newCachedThreadPool({r ->
         Thread rv = new Thread(r)
@@ -34,19 +35,21 @@ public class Downloader {
     private final DownloadManager downloadManager 
     private final Persona me   
     private final File file
-    private final Pieces downloaded, claimed
+    private final Pieces pieces
     private final long length
-    private final InfoHash infoHash
+    private InfoHash infoHash
     private final int pieceSize
     private final I2PConnector connector
     private final Set<Destination> destinations
     private final int nPieces
     private final File piecesFile
+    final int pieceSizePow2
     private final Map<Destination, DownloadWorker> activeWorkers = new ConcurrentHashMap<>()
     
     
     private volatile boolean cancelled
-    private volatile boolean eventFired
+    private final AtomicBoolean eventFired = new AtomicBoolean()
+    private boolean piecesFileClosed
 
     public Downloader(EventBus eventBus, DownloadManager downloadManager, 
         Persona me, File file, long length, InfoHash infoHash, 
@@ -61,6 +64,7 @@ public class Downloader {
         this.connector = connector
         this.destinations = destinations
         this.piecesFile = new File(incompletes, file.getName()+".pieces")
+        this.pieceSizePow2 = pieceSizePow2
         this.pieceSize = 1 << pieceSizePow2
         
         int nPieces
@@ -70,8 +74,15 @@ public class Downloader {
             nPieces = length / pieceSize + 1
         this.nPieces = nPieces
         
-        downloaded = new Pieces(nPieces, Constants.DOWNLOAD_SEQUENTIAL_RATIO)
-        claimed = new Pieces(nPieces)
+        pieces = new Pieces(nPieces, Constants.DOWNLOAD_SEQUENTIAL_RATIO)
+    }
+    
+    public synchronized InfoHash getInfoHash() {
+        infoHash
+    }
+    
+    private synchronized void setInfoHash(InfoHash infoHash) {
+        this.infoHash = infoHash
     }
     
     void download() {
@@ -88,22 +99,26 @@ public class Downloader {
     void readPieces() {
         if (!piecesFile.exists())
             return
-        piecesFile.withReader { 
-            int piece = Integer.parseInt(it.readLine())
-            downloaded.markDownloaded(piece)
+        piecesFile.eachLine { 
+            int piece = Integer.parseInt(it)
+            pieces.markDownloaded(piece)
         }
     }
     
     void writePieces() {
+        synchronized(piecesFile) {
+            if (piecesFileClosed)
+                return
             piecesFile.withPrintWriter { writer ->
-            downloaded.getDownloaded().each { piece -> 
+                pieces.getDownloaded().each { piece ->
                     writer.println(piece)
                 }
             }
         }
+    }
     
     public long donePieces() {
-        downloaded.donePieces()
+        pieces.donePieces()
     }
     
     
@@ -126,7 +141,7 @@ public class Downloader {
             allFinished &= it.currentState == WorkerState.FINISHED
         }
         if (allFinished) {
-            if (downloaded.isComplete())
+            if (pieces.isComplete())
                 return DownloadState.FINISHED
             return DownloadState.FAILED
         }
@@ -143,11 +158,31 @@ public class Downloader {
         if (oneDownloading)
             return DownloadState.DOWNLOADING
         
+        // at least one is requesting hashlist
+        boolean oneHashlist = false
+        activeWorkers.values().each { 
+            if (it.currentState == WorkerState.HASHLIST) {
+                oneHashlist = true
+                return
+            }
+        }
+        if (oneHashlist)
+            return DownloadState.HASHLIST
+            
         return DownloadState.CONNECTING
     }
     
     public void cancel() {
         cancelled = true
+        stop()
+        file.delete()
+        synchronized(piecesFile) {
+            piecesFileClosed = true
+            piecesFile.delete()
+        }
+    }
+    
+    void stop() {
         activeWorkers.values().each { 
             it.cancel()
         }
@@ -163,12 +198,19 @@ public class Downloader {
     }
     
     public void resume() {
-        activeWorkers.each { destination, worker ->
+        destinations.each { destination ->
+            def worker = activeWorkers.get(destination)
+            if (worker != null) {
                 if (worker.currentState == WorkerState.FINISHED) {
                     def newWorker = new DownloadWorker(destination)
                     activeWorkers.put(destination, newWorker)
                     executorService.submit(newWorker)
                 }
+            } else {
+                worker = new DownloadWorker(destination)
+                activeWorkers.put(destination, worker)
+                executorService.submit(worker)
+            }
         }
     }
     
@@ -189,10 +231,16 @@ public class Downloader {
             Endpoint endpoint = null
             try {
                 endpoint = connector.connect(destination)
+                while(getInfoHash().hashList == null) {
+                    currentState = WorkerState.HASHLIST
+                    HashListSession session = new HashListSession(me.toBase64(), infoHash, endpoint)
+                    InfoHash received = session.request()
+                    setInfoHash(received)
+                }
                 currentState = WorkerState.DOWNLOADING
                 boolean requestPerformed
-                while(!downloaded.isComplete()) {
-                    currentSession = new DownloadSession(me.toBase64(), downloaded, claimed, infoHash, endpoint, file, pieceSize, length)
+                while(!pieces.isComplete()) {
+                    currentSession = new DownloadSession(me.toBase64(), pieces, getInfoHash(), endpoint, file, pieceSize, length)
                     requestPerformed = currentSession.request()
                     if (!requestPerformed)
                         break
@@ -202,10 +250,16 @@ public class Downloader {
                 log.log(Level.WARNING,"Exception while downloading",bad)
             } finally {
                 currentState = WorkerState.FINISHED
-                if (downloaded.isComplete() && !eventFired) {
+                if (pieces.isComplete() && eventFired.compareAndSet(false, true)) {
+                    synchronized(piecesFile) {
+                        piecesFileClosed = true
                         piecesFile.delete()
-                    eventFired = true
-                    eventBus.publish(new FileDownloadedEvent(downloadedFile : new DownloadedFile(file, infoHash, pieceSize, Collections.emptySet())))
+                    }
+                    eventBus.publish(
+                        new FileDownloadedEvent(
+                            downloadedFile : new DownloadedFile(file, getInfoHash(), pieceSizePow2, Collections.emptySet()),
+                        downloader : Downloader.this))
+                            
                 } 
                 endpoint?.close()
             }

core/src/main/groovy/com/muwire/core/download/HashListSession.groovy

@@ -0,0 +1,82 @@
+package com.muwire.core.download
+
+import java.nio.ByteBuffer
+import java.nio.charset.StandardCharsets
+import java.security.MessageDigest
+import java.security.NoSuchAlgorithmException
+
+import com.muwire.core.Constants
+import com.muwire.core.InfoHash
+import com.muwire.core.connection.Endpoint
+
+import groovy.util.logging.Log
+
+import static com.muwire.core.util.DataUtil.readTillRN
+
+import net.i2p.data.Base64
+
+@Log
+class HashListSession {
+    private final String meB64
+    private final InfoHash infoHash
+    private final Endpoint endpoint
+    
+    HashListSession(String meB64, InfoHash infoHash, Endpoint endpoint) {
+        this.meB64 = meB64
+        this.infoHash = infoHash
+        this.endpoint = endpoint
+    }
+    
+    InfoHash request() throws IOException {
+        InputStream is = endpoint.getInputStream()
+        OutputStream os = endpoint.getOutputStream()
+        
+        String root = Base64.encode(infoHash.getRoot())
+        os.write("HASHLIST $root\r\n".getBytes(StandardCharsets.US_ASCII))
+        os.write("X-Persona: $meB64\r\n\r\n".getBytes(StandardCharsets.US_ASCII))
+        os.flush()
+        
+        String code = readTillRN(is)
+        if (!code.startsWith("200"))
+            throw new IOException("unknown code $code")
+        
+        // parse all headers
+        Set<String> headers = new HashSet<>()
+        String header
+        while((header = readTillRN(is)) != "" && headers.size() < Constants.MAX_HEADERS)
+            headers.add(header)
+            
+        long receivedStart = -1
+        long receivedEnd = -1
+        for (String receivedHeader : headers) {
+            def group = (receivedHeader =~ /^Content-Range: (\d+)-(\d+)$/)
+            if (group.size() != 1) {
+                log.info("ignoring header $receivedHeader")
+                continue
+            }
+
+            receivedStart = Long.parseLong(group[0][1])
+            receivedEnd = Long.parseLong(group[0][2])
+        }
+        
+        if (receivedStart != 0)
+            throw new IOException("hashlist started at $receivedStart")
+        
+        byte[] hashList = new byte[receivedEnd]
+        ByteBuffer hashListBuf = ByteBuffer.wrap(hashList)
+        byte[] tmp = new byte[0x1 << 13]
+        while(hashListBuf.hasRemaining()) {
+            if (hashListBuf.remaining() > tmp.length)
+                tmp = new byte[hashListBuf.remaining()]
+            int read = is.read(tmp)
+            if (read == -1)
+                throw new IOException()
+            hashListBuf.put(tmp, 0, read)
+        }
+        
+        InfoHash received = InfoHash.fromHashList(hashList)
+        if (received.getRoot() != infoHash.getRoot())
+            throw new IOException("fetched list doesn't match root")
+        received
+    }
+}

core/src/main/groovy/com/muwire/core/download/Pieces.groovy

@@ -1,7 +1,7 @@
 package com.muwire.core.download
 
 class Pieces {
-    private final BitSet bitSet
+    private final BitSet done, claimed
     private final int nPieces
     private final float ratio
     private final Random random = new Random()
@@ -13,52 +13,53 @@ class Pieces {
     Pieces(int nPieces, float ratio) {
         this.nPieces = nPieces
         this.ratio = ratio
-        bitSet = new BitSet(nPieces)
+        done = new BitSet(nPieces)
+        claimed = new BitSet(nPieces)
     }
     
-    synchronized int getRandomPiece() {
-        int cardinality = bitSet.cardinality()
-        if (cardinality == nPieces)
+    synchronized int claim() {
+        int claimedCardinality = claimed.cardinality()
+        if (claimedCardinality == nPieces)
             return -1
         
         // if fuller than ratio just do sequential
-        if ( (1.0f * cardinality) / nPieces > ratio) {
-            return bitSet.nextClearBit(0)
+        if ( (1.0f * claimedCardinality) / nPieces > ratio) {
+            int rv = claimed.nextClearBit(0)
+            claimed.set(rv)
+            return rv
         }
         
         while(true) {
             int start = random.nextInt(nPieces)
-            if (bitSet.get(start))
+            if (claimed.get(start))
                 continue
+            claimed.set(start)
             return start
         }
     }
     
-    def getDownloaded() {
+    synchronized def getDownloaded() {
         def rv = []
-        for (int i = bitSet.nextSetBit(0); i >= 0; i = bitSet.nextSetBit(i+1)) {
+        for (int i = done.nextSetBit(0); i >= 0; i = done.nextSetBit(i+1)) {
             rv << i
         }
         rv
     }
     
     synchronized void markDownloaded(int piece) {
-        bitSet.set(piece)
+        done.set(piece)
+        claimed.set(piece)
     }
     
-    synchronized void clear(int piece) {
-        bitSet.clear(piece)
+    synchronized void unclaim(int piece) {
+        claimed.clear(piece)
     }
     
     synchronized boolean isComplete() {
-        bitSet.cardinality() == nPieces
-    }
-    
-    synchronized boolean isMarked(int piece) {
-        bitSet.get(piece)
+        done.cardinality() == nPieces
     }
     
     synchronized int donePieces() {
-        bitSet.cardinality()
+        done.cardinality()
     }
 }

core/src/main/groovy/com/muwire/core/download/UIDownloadCancelledEvent.groovy

@@ -0,0 +1,7 @@
+package com.muwire.core.download
+
+import com.muwire.core.Event
+
+class UIDownloadCancelledEvent extends Event {
+    Downloader downloader
+}

core/src/main/groovy/com/muwire/core/files/DirectoryWatcher.groovy

@@ -0,0 +1,4 @@
+package com.muwire.core.files
+
+class DirectoryWatcher {
+}

core/src/main/groovy/com/muwire/core/files/FileDownloadedEvent.groovy

@@ -2,10 +2,11 @@ package com.muwire.core.files
 
 import com.muwire.core.DownloadedFile
 import com.muwire.core.Event
+import com.muwire.core.download.Downloader
 
 import net.i2p.data.Destination
 
 class FileDownloadedEvent extends Event {
-
+    Downloader downloader
 	DownloadedFile downloadedFile
 }

core/src/main/groovy/com/muwire/core/files/FileHasher.groovy

@@ -20,12 +20,12 @@ class FileHasher {
 	 * @return the size of each piece in power of 2
 	 */
 	static int getPieceSize(long size) {
-		if (size <= 0x1 << 27)
+		if (size <= 0x1 << 30)
 			return 17
 		
-		for (int i = 28; i <= 37; i++) {
+		for (int i = 31; i <= 37; i++) {
 			if (size <= 0x1L << i) {
-				return i-10
+				return i-13
 			}
 		}
 		

core/src/main/groovy/com/muwire/core/files/FileManager.groovy

@@ -4,6 +4,7 @@ import com.muwire.core.EventBus
 import com.muwire.core.InfoHash
 import com.muwire.core.MuWireSettings
 import com.muwire.core.SharedFile
+import com.muwire.core.UILoadedEvent
 import com.muwire.core.search.ResultsEvent
 import com.muwire.core.search.SearchEvent
 import com.muwire.core.search.SearchIndex
@@ -107,7 +108,7 @@ class FileManager {
             found = rootToFiles.get new InfoHash(e.searchHash)
             found = filter(found, e.oobInfohash)
 			if (found != null && !found.isEmpty())
-				re = new ResultsEvent(results: found.asList(), uuid: e.uuid)
+				re = new ResultsEvent(results: found.asList(), uuid: e.uuid, searchEvent: e)
 		} else {
 			def names = index.search e.searchTerms
 			Set<File> files = new HashSet<>()
@@ -116,7 +117,7 @@ class FileManager {
 			files.each { sharedFiles.add fileToSharedFile[it] }
             files = filter(sharedFiles, e.oobInfohash)
 			if (!sharedFiles.isEmpty())
-				re = new ResultsEvent(results: sharedFiles.asList(), uuid: e.uuid)
+				re = new ResultsEvent(results: sharedFiles.asList(), uuid: e.uuid, searchEvent: e)
 			
 		}
 		

core/src/main/groovy/com/muwire/core/files/PersisterService.groovy

@@ -62,6 +62,8 @@ class PersisterService extends Service {
 			} catch (IllegalArgumentException|NumberFormatException e) {
                 log.log(Level.WARNING, "couldn't load files",e)
 			}
+		} else {
+            listener.publish(new AllFilesLoadedEvent())
         }
 		timer.schedule({persistFiles()} as TimerTask, 0, interval)
 		loaded = true

core/src/main/groovy/com/muwire/core/search/ResultsEvent.groovy

@@ -5,6 +5,7 @@ import com.muwire.core.SharedFile
 
 class ResultsEvent extends Event {
 
+    SearchEvent searchEvent
 	SharedFile[] results
 	UUID uuid
 }

core/src/main/groovy/com/muwire/core/search/ResultsParser.groovy

@@ -12,8 +12,19 @@ class ResultsParser {
     public static UIResultEvent parse(Persona p, UUID uuid, def json) throws InvalidSearchResultException {
         if (json.type != "Result")
             throw new InvalidSearchResultException("not a result json")
-        if (json.version != 1)
+        switch(json.version) {
+            case 1:
+                return parseV1(p, uuid, json)
+            case 2:
+                return parseV2(p, uuid, json)
+            default:
                 throw new InvalidSearchResultException("unknown version $json.version")
+
+        }
+
+    }
+    
+    private static parseV1(Persona p, UUID uuid, def json) {
         if (json.name == null)
             throw new InvalidSearchResultException("name missing")
         if (json.size == null)
@@ -52,4 +63,33 @@ class ResultsParser {
             throw new InvalidSearchResultException("parsing search result failed",e)
         }
     }
+    
+    private static UIResultEvent parseV2(Persona p, UUID uuid, def json) {
+        if (json.name == null)
+            throw new InvalidSearchResultException("name missing")
+        if (json.size == null)
+            throw new InvalidSearchResultException("length missing")
+        if (json.infohash == null)
+            throw new InvalidSearchResultException("infohash missing")
+        if (json.pieceSize == null)
+            throw new InvalidSearchResultException("pieceSize missing")
+        if (json.hashList != null)
+            throw new InvalidSearchResultException("V2 result with hashlist")
+        try {
+            String name = DataUtil.readi18nString(Base64.decode(json.name))
+            long size = json.size
+            byte [] infoHash = Base64.decode(json.infohash)
+            if (infoHash.length != InfoHash.SIZE)
+                throw new InvalidSearchResultException("invalid infohash size $infoHash.length")
+            int pieceSize = json.pieceSize
+            return new UIResultEvent( sender : p,
+                name : name,
+                size : size,
+                infohash : new InfoHash(infoHash),
+                pieceSize : pieceSize,
+                uuid: uuid)
+        } catch (Exception e) {
+            throw new InvalidSearchResultException("parsing search result failed",e)
+        }
+    }
 }

core/src/main/groovy/com/muwire/core/search/ResultsSender.groovy

@@ -46,8 +46,8 @@ class ResultsSender {
         this.me = me
     }
     
-    void sendResults(UUID uuid, SharedFile[] results, Destination target) {
-        log.info("Sending $results.length results for uuid $uuid to ${target.toBase32()}")
+    void sendResults(UUID uuid, SharedFile[] results, Destination target, boolean oobInfohash) {
+        log.info("Sending $results.length results for uuid $uuid to ${target.toBase32()} oobInfohash : $oobInfohash")
         if (target.equals(me.destination)) {
             results.each { 
                 long length = it.getFile().length()
@@ -64,7 +64,8 @@ class ResultsSender {
                     eventBus.publish(uiResultEvent)
             }
         } else {
-            executor.execute(new ResultSendJob(uuid : uuid, results : results, target: target))
+            executor.execute(new ResultSendJob(uuid : uuid, results : results, 
+                target: target, oobInfohash : oobInfohash))
         }
     }
     
@@ -72,6 +73,7 @@ class ResultsSender {
         UUID uuid
         SharedFile [] results
         Destination target
+        boolean oobInfohash
         
         @Override
         public void run() {
@@ -94,11 +96,12 @@ class ResultsSender {
                     String encodedName = Base64.encode(baos.toByteArray())
                     def obj = [:]
                     obj.type = "Result"
-                    obj.version = 1
+                    obj.version = oobInfohash ? 2 : 1
                     obj.name = encodedName
                     obj.infohash = Base64.encode(it.getInfoHash().getRoot())
                     obj.size = it.getFile().length()
                     obj.pieceSize = it.getPieceSize()
+                    if (!oobInfohash) {
                         byte [] hashList = it.getInfoHash().getHashList()
                         def hashListB64 = []
                         for (int i = 0; i < hashList.length / InfoHash.SIZE; i++) {
@@ -106,7 +109,7 @@ class ResultsSender {
                             hashListB64 << Base64.encode(tmp)
                         }
                         obj.hashList = hashListB64
-
+                    }
                     def json = jsonOutput.toJson(obj)
                     os.writeShort((short)json.length())
                     os.write(json.getBytes(StandardCharsets.US_ASCII))

core/src/main/groovy/com/muwire/core/search/SearchManager.groovy

@@ -44,7 +44,7 @@ public class SearchManager {
             log.info("No results for search uuid $event.uuid")
             return
         }
-        resultsSender.sendResults(event.uuid, event.results, target)
+        resultsSender.sendResults(event.uuid, event.results, target, event.searchEvent.oobInfohash)
     }
     
     boolean hasLocalSearch(UUID uuid) {

core/src/main/groovy/com/muwire/core/search/UIResultBatchEvent.groovy

@@ -0,0 +1,8 @@
+package com.muwire.core.search
+
+import com.muwire.core.Event
+
+class UIResultBatchEvent extends Event {
+    UUID uuid
+    UIResultEvent[] results
+}

core/src/main/groovy/com/muwire/core/search/UIResultEvent.groovy

@@ -11,4 +11,9 @@ class UIResultEvent extends Event {
     long size
     InfoHash infohash
     int pieceSize
+    
+    @Override
+    public String toString() {
+        super.toString() + "name:$name size:$size sender:${sender.getHumanReadableName()} pieceSize $pieceSize"
+    }
 }

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

@@ -0,0 +1,5 @@
+package com.muwire.core.upload
+
+class ContentRequest extends Request {
+    Range range
+}

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

@@ -0,0 +1,73 @@
+package com.muwire.core.upload
+
+import java.nio.ByteBuffer
+import java.nio.channels.FileChannel
+import java.nio.charset.StandardCharsets
+import java.nio.file.Files
+import java.nio.file.StandardOpenOption
+
+import com.muwire.core.connection.Endpoint
+
+class ContentUploader extends Uploader {
+    
+    private final File file
+    private final ContentRequest request
+    
+    ContentUploader(File file, ContentRequest request, Endpoint endpoint) {
+        super(endpoint)
+        this.file = file
+        this.request = request
+    }
+    
+    @Override
+    void respond() {
+        OutputStream os = endpoint.getOutputStream()
+        Range range = request.getRange()
+        if (range.start >= file.length() || range.end >= file.length()) {
+            os.write("416 Range Not Satisfiable\r\n\r\n".getBytes(StandardCharsets.US_ASCII))
+            os.flush()
+            return
+        }
+
+        os.write("200 OK\r\n".getBytes(StandardCharsets.US_ASCII))
+        os.write("Content-Range: $range.start-$range.end\r\n\r\n".getBytes(StandardCharsets.US_ASCII))
+
+        FileChannel channel
+        try {
+            channel = Files.newByteChannel(file.toPath(), EnumSet.of(StandardOpenOption.READ))
+            mapped = channel.map(FileChannel.MapMode.READ_ONLY, range.start, range.end - range.start + 1)
+            byte [] tmp = new byte[0x1 << 13]
+            while(mapped.hasRemaining()) {
+                int start = mapped.position()
+                synchronized(this) {
+                    mapped.get(tmp, 0, Math.min(tmp.length, mapped.remaining()))
+                }
+                int read = mapped.position() - start
+                endpoint.getOutputStream().write(tmp, 0, read)
+            }
+        } finally {
+            try {channel?.close() } catch (IOException ignored) {}
+            endpoint.getOutputStream().flush()
+        }
+    }
+
+    @Override
+    public String getName() {
+        return file.getName();
+    }
+
+    @Override
+    public synchronized int getProgress() {
+        if (mapped == null)
+            return 0
+        int position = mapped.position()
+        int total = request.getRange().end - request.getRange().start
+        (int)(position * 100.0 / total)
+    }
+
+    @Override
+    public String getDownloader() {
+        request.downloader.getHumanReadableName()
+    }
+
+}

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

@@ -0,0 +1,4 @@
+package com.muwire.core.upload
+
+class HashListRequest extends Request {
+}

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

@@ -0,0 +1,55 @@
+package com.muwire.core.upload
+
+import java.nio.ByteBuffer
+import java.nio.charset.StandardCharsets
+
+import com.muwire.core.InfoHash
+import com.muwire.core.connection.Endpoint
+
+import net.i2p.data.Base64
+
+class HashListUploader extends Uploader {
+    private final InfoHash infoHash
+    private final HashListRequest request
+    
+    HashListUploader(Endpoint endpoint, InfoHash infoHash, HashListRequest request) {
+        super(endpoint)
+        this.infoHash = infoHash
+        mapped = ByteBuffer.wrap(infoHash.getHashList())
+        this.request = request
+    }
+    
+    void respond() {
+        OutputStream os = endpoint.getOutputStream()
+        os.write("200 OK\r\n".getBytes(StandardCharsets.US_ASCII))
+        os.write("Content-Range: 0-${mapped.remaining()}\r\n\r\n".getBytes(StandardCharsets.US_ASCII))
+        
+        byte[]tmp = new byte[0x1 << 13]
+        while(mapped.hasRemaining()) {
+            int start = mapped.position()
+            synchronized(this) {
+                mapped.get(tmp, 0, Math.min(tmp.length, mapped.remaining()))
+            }
+            int read = mapped.position() - start
+            endpoint.getOutputStream().write(tmp, 0, read)
+        }
+        endpoint.getOutputStream().flush()
+    }
+
+    @Override
+    public String getName() {
+        return "Hash list for " + Base64.encode(infoHash.getRoot());
+    }
+
+    @Override
+    public synchronized int getProgress() {
+        (int)(mapped.position() * 100.0 / mapped.capacity())
+    }
+
+    @Override
+    public String getDownloader() {
+        request.downloader.getHumanReadableName()
+    }
+    
+    
+}

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

@@ -16,11 +16,54 @@ class Request {
     private static final byte N = "\n".getBytes(StandardCharsets.US_ASCII)[0]
     
     InfoHash infoHash
-    Range range
     Persona downloader
     Map<String, String> headers
     
-    static Request parse(InfoHash infoHash, InputStream is) throws IOException {
+    static Request parseContentRequest(InfoHash infoHash, InputStream is) throws IOException {
+        
+        Map<String, String> headers = parseHeaders(is)
+        
+        if (!headers.containsKey("Range"))
+            throw new IOException("Range header not found")
+            
+        String range = headers.get("Range").trim()
+        String[] split = range.split("-")
+        if (split.length != 2)
+            throw new IOException("Invalid range header $range")
+        long start
+        long end
+        try {
+            start = Long.parseLong(split[0])
+            end = Long.parseLong(split[1])
+        } catch (NumberFormatException nfe) {
+            throw new IOException(nfe)
+        }
+        
+        if (start < 0 || end < start)
+            throw new IOException("Invalid range $start - $end")
+        
+        Persona downloader = null
+        if (headers.containsKey("X-Persona")) {
+            def encoded = headers["X-Persona"].trim()
+            def decoded = Base64.decode(encoded)
+            downloader = new Persona(new ByteArrayInputStream(decoded))
+        }
+        new ContentRequest( infoHash : infoHash, range : new Range(start, end), 
+            headers : headers, downloader : downloader)
+    }
+    
+    static Request parseHashListRequest(InfoHash infoHash, InputStream is) throws IOException {
+        Map<String,String> headers = parseHeaders(is)
+        Persona downloader = null
+        if (headers.containsKey("X-Persona")) {
+            def encoded = headers["X-Persona"].trim()
+            def decoded = Base64.decode(encoded)
+            downloader = new Persona(new ByteArrayInputStream(decoded))
+        }
+        new HashListRequest(infoHash : infoHash, headers : headers, downloader : downloader)
+    }
+    
+    private static Map<String, String> parseHeaders(InputStream is) {
         Map<String,String> headers = new HashMap<>()
         byte [] tmp = new byte[Constants.MAX_HEADER_SIZE]
         while(headers.size() < Constants.MAX_HEADERS) {
@@ -67,33 +110,7 @@ class Request {
             String value = header.substring(keyIdx + 1)
             headers.put(key, value)
         }
-        
-        if (!headers.containsKey("Range"))
-            throw new IOException("Range header not found")
-            
-        String range = headers.get("Range").trim()
-        String[] split = range.split("-")
-        if (split.length != 2)
-            throw new IOException("Invalid range header $range")
-        long start
-        long end
-        try {
-            start = Long.parseLong(split[0])
-            end = Long.parseLong(split[1])
-        } catch (NumberFormatException nfe) {
-            throw new IOException(nfe)
-        }
-        
-        if (start < 0 || end < start)
-            throw new IOException("Invalid range $start - $end")
-        
-        Persona downloader = null
-        if (headers.containsKey("X-Persona")) {
-            def encoded = headers["X-Persona"].trim()
-            def decoded = Base64.decode(encoded)
-            downloader = new Persona(new ByteArrayInputStream(decoded))
-        }
-        new Request( infoHash : infoHash, range : new Range(start, end), headers : headers, downloader : downloader)
+        headers
     }
     
 }

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

@@ -23,7 +23,7 @@ public class UploadManager {
         this.fileManager = fileManager
     }
     
-    public void processEndpoint(Endpoint e) throws IOException {
+    public void processGET(Endpoint e) throws IOException {
         byte [] infoHashStringBytes = new byte[44]
         DataInputStream dis = new DataInputStream(e.getInputStream())
         boolean first = true
@@ -61,13 +61,13 @@ public class UploadManager {
                 return
             }
 
-            Request request = Request.parse(new InfoHash(infoHashRoot), e.getInputStream())
+            Request request = Request.parseContentRequest(new InfoHash(infoHashRoot), e.getInputStream())
             if (request.downloader != null && request.downloader.destination != e.destination) {
                 log.info("Downloader persona doesn't match their destination")
                 e.close()
                 return
             }
-            Uploader uploader = new Uploader(sharedFiles.iterator().next().file, request, e)
+            Uploader uploader = new ContentUploader(sharedFiles.iterator().next().file, request, e)
             eventBus.publish(new UploadEvent(uploader : uploader))
             try {
                 uploader.respond()
@@ -75,7 +75,92 @@ public class UploadManager {
                 eventBus.publish(new UploadFinishedEvent(uploader : uploader))
             }
         }
+    }
     
+    public void processHashList(Endpoint e) {
+        byte [] infoHashStringBytes = new byte[44]
+        DataInputStream dis = new DataInputStream(e.getInputStream())
+        dis.readFully(infoHashStringBytes)
+        String infoHashString = new String(infoHashStringBytes, StandardCharsets.US_ASCII)
+        log.info("Responding to hashlist request for root $infoHashString")
+        
+        byte [] infoHashRoot = Base64.decode(infoHashString)
+        Set<SharedFile> sharedFiles = fileManager.getSharedFiles(infoHashRoot)
+        if (sharedFiles == null || sharedFiles.isEmpty()) {
+            log.info "file not found"
+            e.getOutputStream().write("404 File Not Found\r\n\r\n".getBytes(StandardCharsets.US_ASCII))
+            e.getOutputStream().flush()
+            e.close()
+            return
+        }
+        
+        byte [] rn = new byte[2]
+        dis.readFully(rn)
+        if (rn != "\r\n".getBytes(StandardCharsets.US_ASCII)) {
+            log.warning("Malformed HASHLIST header")
+            e.close()
+            return
+        }
+        
+        Request request = Request.parseHashListRequest(new InfoHash(infoHashRoot), e.getInputStream())
+        if (request.downloader != null && request.downloader.destination != e.destination) {
+            log.info("Downloader persona doesn't match their destination")
+            e.close()
+            return
+        }
+        Uploader uploader = new HashListUploader(e, sharedFiles.iterator().next().infoHash, request)
+        eventBus.publish(new UploadEvent(uploader : uploader))
+        try {
+            uploader.respond()
+        } finally {
+            eventBus.publish(new UploadFinishedEvent(uploader : uploader))
+        }
+        
+        // proceed with content
+        while(true) {
+            byte[] get = new byte[4]
+            dis.readFully(get)
+            if (get != "GET ".getBytes(StandardCharsets.US_ASCII)) {
+                log.warning("received a method other than GET on subsequent call")
+                e.close()
+                return
+            }
+            dis.readFully(infoHashStringBytes)
+            infoHashString = new String(infoHashStringBytes, StandardCharsets.US_ASCII)
+            log.info("Responding to upload request for root $infoHashString")
+
+            infoHashRoot = Base64.decode(infoHashString)
+            sharedFiles = fileManager.getSharedFiles(infoHashRoot)
+            if (sharedFiles == null || sharedFiles.isEmpty()) {
+                log.info "file not found"
+                e.getOutputStream().write("404 File Not Found\r\n\r\n".getBytes(StandardCharsets.US_ASCII))
+                e.getOutputStream().flush()
+                e.close()
+                return
+            }
+
+            rn = new byte[2]
+            dis.readFully(rn)
+            if (rn != "\r\n".getBytes(StandardCharsets.US_ASCII)) {
+                log.warning("Malformed GET header")
+                e.close()
+                return
+            }
+
+            request = Request.parseContentRequest(new InfoHash(infoHashRoot), e.getInputStream())
+            if (request.downloader != null && request.downloader.destination != e.destination) {
+                log.info("Downloader persona doesn't match their destination")
+                e.close()
+                return
+            }
+            uploader = new ContentUploader(sharedFiles.iterator().next().file, request, e)
+            eventBus.publish(new UploadEvent(uploader : uploader))
+            try {
+                uploader.respond()
+            } finally {
+                eventBus.publish(new UploadFinishedEvent(uploader : uploader))
+            }
+        }
     }
 }
 

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

@@ -8,52 +8,28 @@ import java.nio.file.StandardOpenOption
 
 import com.muwire.core.connection.Endpoint
 
-class Uploader {
-    private final File file
-    private final Request request
-    private final Endpoint endpoint
-    private ByteBuffer mapped
+abstract class Uploader {
+    protected final Endpoint endpoint
+    protected ByteBuffer mapped
     
-    Uploader(File file, Request request, Endpoint endpoint) {
-        this.file = file
-        this.request = request
+    Uploader(Endpoint endpoint) {
         this.endpoint = endpoint
     }
     
-    void respond() {
-        OutputStream os = endpoint.getOutputStream()
-        Range range = request.getRange()
-        if (range.start >= file.length() || range.end >= file.length()) {
-            os.write("416 Range Not Satisfiable\r\n\r\n".getBytes(StandardCharsets.US_ASCII))
-            os.flush()
-            return
-        }
-
-        os.write("200 OK\r\n".getBytes(StandardCharsets.US_ASCII))
-        os.write("Content-Range: $range.start-$range.end\r\n\r\n".getBytes(StandardCharsets.US_ASCII))        
-
-        FileChannel channel
-        try {
-            channel = Files.newByteChannel(file.toPath(), EnumSet.of(StandardOpenOption.READ))
-            mapped = channel.map(FileChannel.MapMode.READ_ONLY, range.start, range.end - range.start + 1)
-            byte [] tmp = new byte[0x1 << 13]
-            while(mapped.hasRemaining()) {
-                int start = mapped.position()
-                synchronized(this) {
-                    mapped.get(tmp, 0, Math.min(tmp.length, mapped.remaining()))
-                }
-                int read = mapped.position() - start
-                endpoint.getOutputStream().write(tmp, 0, read)
-            }
-        } finally {
-            try {channel?.close() } catch (IOException ignored) {}
-            endpoint.getOutputStream().flush()
-        }     
-    }
+    abstract void respond()
         
     public synchronized int getPosition() {
         if (mapped == null)
             return -1
         mapped.position()
     }
+    
+    abstract String getName();
+    
+    /**
+     * @return an integer between 0 and 100
+     */
+    abstract int getProgress();
+    
+    abstract String getDownloader();
 }

core/src/main/java/com/muwire/core/SharedFile.java

@@ -25,4 +25,17 @@ public class SharedFile {
 	public int getPieceSize() {
 	    return pieceSize;
 	}
+	
+	@Override
+	public int hashCode() {
+	    return file.hashCode() ^ infoHash.hashCode();
+	}
+	
+	@Override
+	public boolean equals(Object o) {
+	    if (!(o instanceof SharedFile))
+	        return false;
+	    SharedFile other = (SharedFile)o;
+	    return file.equals(other.file) && infoHash.equals(other.infoHash);
+	}
 }

doc/wire-protocol.md

@@ -181,6 +181,8 @@ Search results are sent through and HTTP POST method from the responder to the o
 * The "altlocs" list contains list of alternate personas that the responder thinks may also have the file.
 * The "pieceSize" field is the size of the each individual file piece (except possibly the last) in powers of 2
 
+Results version 1 contain the full hashlist, version 2 does not contain that list.  See the "infohash-upgrade" document for more information.
+
 ### "Who do you trust" query - any node to any node
 (See the "web-of-trust" document for more info on this query)
 

gradle.properties

@@ -1,5 +1,5 @@
 group         = com.muwire
-version       = 0.1.2
+version       = 0.2.4
 groovyVersion = 2.4.15
 slf4jVersion  = 1.7.25
 spockVersion  = 1.1-groovy-2.4

gui/griffon-app/controllers/com/muwire/gui/MainFrameController.groovy

@@ -15,6 +15,7 @@ import javax.inject.Inject
 import com.muwire.core.Constants
 import com.muwire.core.Core
 import com.muwire.core.download.DownloadStartedEvent
+import com.muwire.core.download.UIDownloadCancelledEvent
 import com.muwire.core.download.UIDownloadEvent
 import com.muwire.core.search.QueryEvent
 import com.muwire.core.search.SearchEvent
@@ -38,6 +39,9 @@ class MainFrameController {
         cardsPanel.getLayout().show(cardsPanel, "search window")
         
         def search = builder.getVariable("search-field").text
+        search = search.trim()
+        if (search.length() == 0)
+            return
         def uuid = UUID.randomUUID()
         Map<String, Object> params = new HashMap<>()
         params["search-terms"] = search
@@ -45,14 +49,25 @@ class MainFrameController {
         def group = mvcGroup.createMVCGroup("SearchTab", uuid.toString(), params)
         model.results[uuid.toString()] = group
 
+        boolean hashSearch = false
+        byte [] root = null
+        if (search.length() == 44 && search.indexOf(" ") < 0) {
+            try {
+                root = Base64.decode(search)
+                hashSearch = true
+            } catch (Exception e) {
+                // not a hash search
+            }
+        }
+        
         def searchEvent
-        if (model.hashSearch) {
-            searchEvent = new SearchEvent(searchHash : Base64.decode(search), uuid : uuid)
+        if (hashSearch) {
+            searchEvent = new SearchEvent(searchHash : root, uuid : uuid, oobInfohash: true)
         } else {
             // this can be improved a lot
             def replaced = search.toLowerCase().trim().replaceAll(Constants.SPLIT_PATTERN, " ")
             def terms = replaced.split(" ")
-            searchEvent = new SearchEvent(searchTerms : terms, uuid : uuid, oobInfohash: false)
+            searchEvent = new SearchEvent(searchTerms : terms, uuid : uuid, oobInfohash: true)
         }
         core.eventBus.publish(new QueryEvent(searchEvent : searchEvent, firstHop : true, 
             replyTo: core.me.destination, receivedOn: core.me.destination,
@@ -69,7 +84,8 @@ class MainFrameController {
         def group = mvcGroup.createMVCGroup("SearchTab", uuid.toString(), params)
         model.results[uuid.toString()] = group
         
-        def searchEvent = new SearchEvent(searchHash : Base64.decode(infoHash), uuid:uuid)
+        def searchEvent = new SearchEvent(searchHash : Base64.decode(infoHash), uuid:uuid,
+            oobInfohash: true)
         core.eventBus.publish(new QueryEvent(searchEvent : searchEvent, firstHop : true,
             replyTo: core.me.destination, receivedOn: core.me.destination,
             originator : core.me))
@@ -82,12 +98,20 @@ class MainFrameController {
         int row = table.getSelectedRow()
         if (row == -1)
             return
+        def sortEvt = group.view.lastSortEvent
+        if (sortEvt != null) {
+            row = group.view.resultsTable.rowSorter.convertRowIndexToModel(row)
+        } 
         group.model.results[row]        
     }
     
-    private def selectedDownload() {
-        def selected = builder.getVariable("downloads-table").getSelectedRow()
-        model.downloads[selected].downloader
+    private int selectedDownload() {
+        def downloadsTable = builder.getVariable("downloads-table")
+        def selected = downloadsTable.getSelectedRow()
+        def sortEvt = mvcGroup.view.lastDownloadSortEvent
+        if (sortEvt != null)
+            selected = downloadsTable.rowSorter.convertRowIndexToModel(selected)
+        selected
     }
     
     @ControllerAction
@@ -124,13 +148,14 @@ class MainFrameController {
     
     @ControllerAction 
     void cancel() {
-        def downloader = selectedDownload()
+        def downloader = model.downloads[selectedDownload()].downloader
         downloader.cancel()
+        core.eventBus.publish(new UIDownloadCancelledEvent(downloader : downloader))
     }
     
     @ControllerAction
     void resume() {
-        def downloader = selectedDownload()
+        def downloader = model.downloads[selectedDownload()].downloader
         downloader.resume()
     }
 
@@ -161,14 +186,8 @@ class MainFrameController {
         markTrust("trusted-table", TrustLevel.NEUTRAL, model.trusted)
     }
     
-    @ControllerAction
-    void keywordSearch() {
-        model.hashSearch = false
-    }
-    
-    @ControllerAction
-    void hashSearch() {
-        model.hashSearch = true
+    void unshareSelectedFiles() {
+        println "unsharing selected files"
     }
     
     void mvcGroupInit(Map<String, String> args) {

gui/griffon-app/controllers/com/muwire/gui/OptionsController.groovy

@@ -66,6 +66,42 @@ class OptionsController {
             settings.write(it)
         }
         
+        // UI Setttings
+        
+        UISettings uiSettings = application.context.get("ui-settings")
+        text = view.lnfField.text
+        model.lnf = text
+        uiSettings.lnf = text
+        
+        text = view.fontField.text
+        model.font = text
+        uiSettings.font = text
+        
+        boolean showMonitor = view.monitorCheckbox.model.isSelected()
+        model.showMonitor = showMonitor
+        uiSettings.showMonitor = showMonitor
+        
+        boolean clearCancelledDownloads = view.clearCancelledDownloadsCheckbox.model.isSelected()
+        model.clearCancelledDownloads = clearCancelledDownloads
+        uiSettings.clearCancelledDownloads = clearCancelledDownloads
+        
+        boolean clearFinishedDownloads = view.clearFinishedDownloadsCheckbox.model.isSelected()
+        model.clearFinishedDownloads = clearFinishedDownloads
+        uiSettings.clearFinishedDownloads = clearFinishedDownloads
+        
+        boolean excludeLocalResult = view.excludeLocalResultCheckbox.model.isSelected()
+        model.excludeLocalResult = excludeLocalResult
+        uiSettings.excludeLocalResult = excludeLocalResult
+        
+        boolean showSearchHashes = view.showSearchHashesCheckbox.model.isSelected()
+        model.showSearchHashes = showSearchHashes
+        uiSettings.showSearchHashes = showSearchHashes
+        
+        File uiSettingsFile = new File(core.home, "gui.properties")
+        uiSettingsFile.withOutputStream { 
+            uiSettings.write(it)
+        }
+        
         cancel()
     }
     

gui/griffon-app/lifecycle/Initialize.groovy

@@ -1,18 +1,25 @@
 import griffon.core.GriffonApplication
 import groovy.util.logging.Log
+import net.i2p.util.SystemVersion
 
 import org.codehaus.griffon.runtime.core.AbstractLifecycleHandler
 
 import com.muwire.core.Core
 import com.muwire.core.MuWireSettings
+import com.muwire.gui.UISettings
 
 import javax.annotation.Nonnull
 import javax.inject.Inject
 import javax.swing.JTable
+import javax.swing.LookAndFeel
+import javax.swing.UIManager
 
 import static griffon.util.GriffonApplicationUtils.isMacOSX
 import static groovy.swing.SwingBuilder.lookAndFeel
 
+import java.awt.Font
+import java.util.logging.Level
+
 @Log
 class Initialize extends AbstractLifecycleHandler {
     @Inject
@@ -22,11 +29,87 @@ class Initialize extends AbstractLifecycleHandler {
 
     @Override
     void execute() {
-        if (isMacOSX()) {
-            lookAndFeel('nimbus') // otherwise the file chooser doesn't open???
-        } else {
-            lookAndFeel('system', 'gtk')
+        log.info "Loading home dir"
+        def portableHome = System.getProperty("portable.home")
+        def home = portableHome == null ?
+            selectHome() :
+            portableHome
+            
+        home = new File(home)
+        if (!home.exists()) {
+            log.info("creating home dir $home")
+            home.mkdirs()
         }
+        
+        application.context.put("muwire-home", home.getAbsolutePath())
+        
+        def guiPropsFile = new File(home, "gui.properties")
+        UISettings uiSettings
+        if (guiPropsFile.exists()) {
+            Properties props = new Properties()
+            guiPropsFile.withInputStream { props.load(it) }
+            uiSettings = new UISettings(props)
+            
+            log.info("settting user-specified lnf $uiSettings.lnf")
+            try {
+                lookAndFeel(uiSettings.lnf)
+            } catch (Throwable bad) {
+                log.log(Level.WARNING,"couldn't set desired look and feeel, switching to defaults", bad)
+                uiSettings.lnf = lookAndFeel("system","gtk","metal").getID()
+            }
+            
+            if (uiSettings.font != null) {
+                log.info("setting user-specified font $uiSettings.font")
+                Font font = new Font(uiSettings.font, Font.PLAIN, 12)
+                def defaults = UIManager.getDefaults()
+                defaults.put("Button.font", font)
+                defaults.put("RadioButton.font", font)
+                defaults.put("Label.font", font)
+                defaults.put("CheckBox.font", font)
+                defaults.put("Table.font", font)
+                defaults.put("TableHeader.font", font)
+                // TODO: add others
+            }
+        } else {
+            Properties props = new Properties()
+            uiSettings = new UISettings(props)
+            log.info "will try default lnfs"
+            if (isMacOSX()) {
+                if (SystemVersion.isJava9()) {
+                    uiSettings.lnf = "metal"
+                    lookAndFeel("metal")
+                } else {
+                    uiSettings.lnf = "nimbus"
+                    lookAndFeel('nimbus') // otherwise the file chooser doesn't open???
+                }
+            } else {
+                LookAndFeel chosen = lookAndFeel('system', 'gtk')
+                uiSettings.lnf = chosen.getID()
+                log.info("ended up applying $chosen.name")
+            }
+        }
+        
+        application.context.put("ui-settings", uiSettings)
+    }
+    
+    private static String selectHome() {
+        def home = new File(System.properties["user.home"])
+        def defaultHome = new File(home, ".MuWire")
+        if (defaultHome.exists())
+            return defaultHome.getAbsolutePath()
+        if (SystemVersion.isMac()) {
+            def library = new File(home, "Library")
+            def appSupport = new File(library, "Application Support")
+            def muwire = new File(appSupport,"MuWire")
+            return muwire.getAbsolutePath()
+        }
+        if (SystemVersion.isWindows()) {
+            def appData = new File(home,"AppData")
+            def roaming = new File(appData, "Roaming")
+            def muwire = new File(roaming, "MuWire")
+            return muwire.getAbsolutePath()
+        }
+        defaultHome.getAbsolutePath()
     }
 }
 

gui/griffon-app/lifecycle/Ready.groovy

@@ -7,6 +7,7 @@ import org.codehaus.griffon.runtime.core.AbstractLifecycleHandler
 
 import com.muwire.core.Core
 import com.muwire.core.MuWireSettings
+import com.muwire.core.UILoadedEvent
 import com.muwire.core.files.FileSharedEvent
 
 import javax.annotation.Nonnull
@@ -33,17 +34,8 @@ class Ready extends AbstractLifecycleHandler {
     @Override
     void execute() {
         log.info "starting core services"
-        def portableHome = System.getProperty("portable.home")
-        def home = portableHome == null ? 
-            selectHome() :
-            portableHome
-            
-        home = new File(home)
-        if (!home.exists()) {
-            log.info("creating home dir $home")
-            home.mkdirs()
-        }
         
+        def home = new File(application.getContext().getAsString("muwire-home"))
         def props = new Properties()
         def propsFile = new File(home, "MuWire.properties")
         if (propsFile.exists()) {
@@ -117,26 +109,8 @@ class Ready extends AbstractLifecycleHandler {
                 core.eventBus.publish(new FileSharedEvent(file : new File(it)))
             }
         }
-    }
         
-    private static String selectHome() {
-        def home = new File(System.properties["user.home"])
-        def defaultHome = new File(home, ".MuWire")
-        if (defaultHome.exists())
-            return defaultHome.getAbsolutePath()
-        if (SystemVersion.isMac()) { 
-            def library = new File(home, "Library")
-            def appSupport = new File(library, "Application Support")
-            def muwire = new File(appSupport,"MuWire")
-            return muwire.getAbsolutePath()
-        }
-        if (SystemVersion.isWindows()) {
-            def appData = new File(home,"AppData")
-            def roaming = new File(appData, "Roaming")
-            def muwire = new File(roaming, "MuWire")
-            return muwire.getAbsolutePath()
-        }
-        defaultHome.getAbsolutePath()
+        core.eventBus.publish(new UILoadedEvent())
     }
 }
 

gui/griffon-app/models/com/muwire/gui/MainFrameModel.groovy

@@ -20,6 +20,7 @@ import com.muwire.core.files.FileHashedEvent
 import com.muwire.core.files.FileLoadedEvent
 import com.muwire.core.files.FileSharedEvent
 import com.muwire.core.search.QueryEvent
+import com.muwire.core.search.UIResultBatchEvent
 import com.muwire.core.search.UIResultEvent
 import com.muwire.core.trust.TrustEvent
 import com.muwire.core.trust.TrustService
@@ -34,6 +35,7 @@ import griffon.core.mvc.MVCGroup
 import griffon.inject.MVCMember
 import griffon.transform.FXObservable
 import griffon.transform.Observable
+import net.i2p.data.Base64
 import net.i2p.data.Destination
 import griffon.metadata.ArtifactProviderFor
 
@@ -56,8 +58,6 @@ class MainFrameModel {
     def trusted = []
     def distrusted = []
     
-    boolean hashSearch
-    
     @Observable int connections
     @Observable String me
     @Observable boolean searchButtonsEnabled
@@ -70,6 +70,8 @@ class MainFrameModel {
 
     private long lastRetryTime = System.currentTimeMillis()
     
+    UISettings uiSettings
+        
     void updateTablePreservingSelection(String tableName) {
         def downloadTable = builder.getVariable(tableName)
         int selectedRow = downloadTable.getSelectedRow()
@@ -79,11 +81,28 @@ class MainFrameModel {
     
     void mvcGroupInit(Map<String, Object> args) {
         
+        uiSettings = application.context.get("ui-settings")
+        
         Timer timer = new Timer("download-pumper", true)
         timer.schedule({
             runInsideUIAsync {
                 if (!mvcGroup.alive)
                     return
+                
+                // remove cancelled or finished downloads
+                def toRemove = []    
+                downloads.each {
+                    if (uiSettings.clearCancelledDownloads &&
+                        it.downloader.getCurrentState() == Downloader.DownloadState.CANCELLED)
+                        toRemove << it
+                    if (uiSettings.clearFinishedDownloads &&
+                        it.downloader.getCurrentState() == Downloader.DownloadState.FINISHED)
+                        toRemove << it
+                }
+                toRemove.each {
+                    downloads.remove(it)
+                }    
+                
                 builder.getVariable("uploads-table")?.model.fireTableDataChanged()
                 
                 updateTablePreservingSelection("downloads-table")
@@ -97,6 +116,7 @@ class MainFrameModel {
             core = e.getNewValue()
             me = core.me.getHumanReadableName()
             core.eventBus.register(UIResultEvent.class, this)
+            core.eventBus.register(UIResultBatchEvent.class, this)
             core.eventBus.register(DownloadStartedEvent.class, this)
             core.eventBus.register(ConnectionEvent.class, this)
             core.eventBus.register(DisconnectionEvent.class, this)
@@ -143,6 +163,11 @@ class MainFrameModel {
         resultsGroup?.model.handleResult(e)
     }
     
+    void onUIResultBatchEvent(UIResultBatchEvent e) {
+        MVCGroup resultsGroup = results.get(e.uuid)
+        resultsGroup?.model.handleResultBatch(e.results)
+    }
+    
     void onDownloadStartedEvent(DownloadStartedEvent e) {
         runInsideUIAsync {
             downloads << e
@@ -160,7 +185,8 @@ class MainFrameModel {
                 topPanel.getLayout().show(topPanel, "top-search-panel")
             }
             
-            connectionList.add(e.endpoint.destination)
+            UIConnection con = new UIConnection(destination : e.endpoint.destination, incoming : e.incoming)
+            connectionList.add(con)
             JTable table = builder.getVariable("connections-table")
             table.model.fireTableDataChanged()
         }
@@ -175,7 +201,8 @@ class MainFrameModel {
                 topPanel.getLayout().show(topPanel, "top-connect-panel")
             }
             
-            connectionList.remove(e.destination)
+            UIConnection con = new UIConnection(destination : e.destination)
+            connectionList.remove(con)
             JTable table = builder.getVariable("connections-table")
             table.model.fireTableDataChanged()
         }
@@ -241,14 +268,23 @@ class MainFrameModel {
     void onQueryEvent(QueryEvent e) {
         if (e.replyTo == core.me.destination)
             return
+        
+        def search
+        if (e.searchEvent.searchHash != null) {
+            if (!uiSettings.showSearchHashes) {
+                return
+            }
+            search = Base64.encode(e.searchEvent.searchHash)
+        } else {
             StringBuilder sb = new StringBuilder()
             e.searchEvent.searchTerms?.each {
                 sb.append(it)
                 sb.append(" ")
             }
-        def search = sb.toString()
+            search = sb.toString()
             if (search.trim().size() == 0)
                 return
+        }
         runInsideUIAsync {
             searches.addFirst(new IncomingSearch(search : search, replyTo : e.replyTo, originator : e.originator))
             while(searches.size() > 200)
@@ -286,4 +322,22 @@ class MainFrameModel {
             table.model.fireTableDataChanged()
         }
     }
+    
+    private static class UIConnection {
+        Destination destination
+        boolean incoming
+        
+        @Override
+        public int hashCode() {
+            destination.hashCode()
+        }
+        
+        @Override
+        public boolean equals(Object o) {
+            if (!(o instanceof UIConnection))
+                return false
+            UIConnection other = (UIConnection) o
+            return destination == other.destination
+        }
+    }
 }

gui/griffon-app/models/com/muwire/gui/OptionsModel.groovy

@@ -20,6 +20,15 @@ class OptionsModel {
     @Observable String outboundLength
     @Observable String outboundQuantity
     
+    // gui options
+    @Observable boolean showMonitor
+    @Observable String lnf
+    @Observable String font
+    @Observable boolean clearCancelledDownloads
+    @Observable boolean clearFinishedDownloads
+    @Observable boolean excludeLocalResult
+    @Observable boolean showSearchHashes
+    
     void mvcGroupInit(Map<String, String> args) {
         MuWireSettings settings = application.context.get("muwire-settings")
         downloadRetryInterval = settings.downloadRetryInterval
@@ -32,5 +41,14 @@ class OptionsModel {
         inboundQuantity = core.i2pOptions["inbound.quantity"]
         outboundLength = core.i2pOptions["outbound.length"]
         outboundQuantity = core.i2pOptions["outbound.quantity"]
+        
+        UISettings uiSettings = application.context.get("ui-settings")
+        showMonitor = uiSettings.showMonitor
+        lnf = uiSettings.lnf
+        font = uiSettings.font
+        clearCancelledDownloads = uiSettings.clearCancelledDownloads
+        clearFinishedDownloads = uiSettings.clearFinishedDownloads
+        excludeLocalResult = uiSettings.excludeLocalResult
+        showSearchHashes = uiSettings.showSearchHashes
     }
 }

gui/griffon-app/models/com/muwire/gui/SearchTabModel.groovy

@@ -19,6 +19,7 @@ class SearchTabModel {
     FactoryBuilderSupport builder
     
     Core core
+    UISettings uiSettings
     String uuid
     def results = []
     def hashBucket = [:]
@@ -26,6 +27,7 @@ class SearchTabModel {
     
     void mvcGroupInit(Map<String, String> args) {
         core = mvcGroup.parentGroup.model.core
+        uiSettings = application.context.get("ui-settings")
         mvcGroup.parentGroup.model.results[UUID.fromString(uuid)] = mvcGroup
     }
     
@@ -34,6 +36,9 @@ class SearchTabModel {
     }
     
     void handleResult(UIResultEvent e) {
+        if (uiSettings.excludeLocalResult &&
+            e.sender == core.me)
+            return
         runInsideUIAsync {
             def bucket = hashBucket.get(e.infohash)
             if (bucket == null) {
@@ -47,4 +52,22 @@ class SearchTabModel {
             table.model.fireTableDataChanged()
         }
     }
+    
+    void handleResultBatch(UIResultEvent[] batch) {
+        runInsideUIAsync {
+            batch.each { 
+                if (uiSettings.excludeLocalResult && it.sender == core.me)
+                    return
+                def bucket = hashBucket.get(it.infohash)
+                if (bucket == null) {
+                    bucket = []
+                    hashBucket[it.infohash] = bucket
+                }
+                bucket << it
+                results << it
+            }
+            JTable table = builder.getVariable("results-table")
+            table.model.fireTableDataChanged()
+        }
+    }
 }

gui/griffon-app/views/com/muwire/gui/MainFrameView.groovy

@@ -3,6 +3,7 @@ package com.muwire.gui
 import griffon.core.artifact.GriffonView
 import griffon.inject.MVCMember
 import griffon.metadata.ArtifactProviderFor
+import net.i2p.data.Base64
 import net.i2p.data.DataHelper
 
 import javax.swing.BorderFactory
@@ -10,7 +11,10 @@ import javax.swing.Box
 import javax.swing.BoxLayout
 import javax.swing.JFileChooser
 import javax.swing.JLabel
+import javax.swing.JMenuItem
+import javax.swing.JPopupMenu
 import javax.swing.JSplitPane
+import javax.swing.JTable
 import javax.swing.ListSelectionModel
 import javax.swing.SwingConstants
 import javax.swing.border.Border
@@ -26,6 +30,10 @@ import java.awt.FlowLayout
 import java.awt.GridBagConstraints
 import java.awt.GridBagLayout
 import java.awt.Insets
+import java.awt.Toolkit
+import java.awt.datatransfer.StringSelection
+import java.awt.event.MouseAdapter
+import java.awt.event.MouseEvent
 import java.nio.charset.StandardCharsets
 
 import javax.annotation.Nonnull
@@ -37,7 +45,12 @@ class MainFrameView {
     @MVCMember @Nonnull
     MainFrameModel model
     
+    def downloadsTable
+    def lastDownloadSortEvent
+    def lastSharedSortEvent
+    
     void initUI() {
+        UISettings settings = application.context.get("ui-settings")
         builder.with {
             application(size : [1024,768], id: 'main-frame',
             locationRelativeTo : null,
@@ -60,6 +73,7 @@ class MainFrameView {
                         gridLayout(rows:1, cols: 2)
                         button(text: "Searches", actionPerformed : showSearchWindow)
                         button(text: "Uploads", actionPerformed : showUploadsWindow)
+                        if (settings.showMonitor)
                             button(text: "Monitor", actionPerformed : showMonitorWindow)
                         button(text: "Trust", actionPerformed : showTrustWindow)
                     }
@@ -76,12 +90,6 @@ class MainFrameView {
 
                             }
                             panel( constraints: BorderLayout.EAST) {
-                                panel {
-                                    buttonGroup(id : "searchButtonGroup") 
-                                    radioButton(text : "Keywords", selected : true, buttonGroup : searchButtonGroup, keywordSearchAction)
-                                    radioButton(text : "Hash", selected : false, buttonGroup : searchButtonGroup, hashSearchAction)
-                                    
-                                }
                                 button(text: "Search", searchAction)
                             }
                         }
@@ -105,14 +113,14 @@ class MainFrameView {
                             panel (constraints : JSplitPane.BOTTOM) {
                                 borderLayout()
                                 scrollPane (constraints : BorderLayout.CENTER) {
-                                    table(id : "downloads-table", autoCreateRowSorter : true) {
+                                    downloadsTable = table(id : "downloads-table", autoCreateRowSorter : true) {
                                         tableModel(list: model.downloads) {
                                             closureColumn(header: "Name", preferredWidth: 350, type: String, read : {row -> row.downloader.file.getName()})
-                                            closureColumn(header: "Status", preferredWidth: 50, type: String, read : {row -> row.downloader.getCurrentState()})
+                                            closureColumn(header: "Status", preferredWidth: 50, type: String, read : {row -> row.downloader.getCurrentState().toString()})
                                             closureColumn(header: "Progress", preferredWidth: 20, type: String, read: { row ->
                                                 int pieces = row.downloader.nPieces
                                                 int done = row.downloader.donePieces()
-                                                "$done/$pieces pieces"
+                                                "$done/$pieces pieces".toString()
                                             })
                                             closureColumn(header: "Sources", preferredWidth : 10, type: Integer, read : {row -> row.downloader.activeWorkers()})
                                             closureColumn(header: "Speed", preferredWidth: 50, type:String, read :{row -> 
@@ -139,8 +147,7 @@ class MainFrameView {
                                 table(id : "shared-files-table", autoCreateRowSorter: true) {
                                      tableModel(list : model.shared) {
                                          closureColumn(header : "Name", preferredWidth : 550, type : String, read : {row -> row.file.getAbsolutePath()})
-                                         closureColumn(header : "Size", preferredWidth : 50, type : String, 
-                                             read : {row -> DataHelper.formatSize2Decimal(row.file.length(),false) + "B"})
+                                         closureColumn(header : "Size", preferredWidth : 50, type : Long, read : {row -> row.file.length() })
                                      }   
                                 }
                             }
@@ -153,16 +160,13 @@ class MainFrameView {
                             scrollPane (constraints : BorderLayout.CENTER) {
                                 table(id : "uploads-table") {
                                     tableModel(list : model.uploads) {
-                                        closureColumn(header : "Name", type : String, read : {row -> row.file.getName() })
+                                        closureColumn(header : "Name", type : String, read : {row -> row.getName() })
                                         closureColumn(header : "Progress", type : String, read : { row ->
-                                            int position = row.getPosition()
-                                            def range = row.request.getRange()
-                                            int total = range.end - range.start
-                                            int percent = (int)((position * 100.0) / total)
+                                            int percent = row.getProgress()
                                             "$percent%"
                                         })
                                         closureColumn(header : "Downloader", type : String, read : { row -> 
-                                            row.request.downloader?.getHumanReadableName()
+                                            row.getDownloader()
                                         })
                                     }
                                 }
@@ -179,7 +183,13 @@ class MainFrameView {
                             scrollPane(constraints : BorderLayout.CENTER) {
                                 table(id : "connections-table") {
                                     tableModel(list : model.connectionList) {
-                                        closureColumn(header : "Destination", type: String, read : { row -> row.toBase32() })
+                                        closureColumn(header : "Destination", preferredWidth: 250, type: String, read : { row -> row.destination.toBase32() })
+                                        closureColumn(header : "Direction", preferredWidth: 20, type: String, read : { row ->
+                                            if (row.incoming)
+                                                return "In"
+                                            else 
+                                                return "Out"
+                                        })
                                     }
                                 }
                             }
@@ -260,16 +270,24 @@ class MainFrameView {
         def selectionModel = downloadsTable.getSelectionModel()
         selectionModel.setSelectionMode(ListSelectionModel.SINGLE_SELECTION)
         selectionModel.addListSelectionListener({
-            int selectedRow = downloadsTable.getSelectedRow()
-            def downloader = model.downloads[selectedRow].downloader
+            int selectedRow = selectedDownloaderRow()
+            if (selectedRow < 0) {
+                model.cancelButtonEnabled = false
+                model.retryButtonEnabled = false
+                return
+            }
+            def downloader = model.downloads[selectedRow]?.downloader
+            if (downloader == null)
+                return
             switch(downloader.getCurrentState()) {
                 case Downloader.DownloadState.CONNECTING :
                 case Downloader.DownloadState.DOWNLOADING :
+                case Downloader.DownloadState.HASHLIST:
                 model.cancelButtonEnabled = true
                 model.retryButtonEnabled = false
                 break
                 case Downloader.DownloadState.FAILED:
-                model.cancelButtonEnabled = false
+                model.cancelButtonEnabled = true
                 model.retryButtonEnabled = true
                 break
                 default:
@@ -280,7 +298,150 @@ class MainFrameView {
         
         def centerRenderer = new DefaultTableCellRenderer()
         centerRenderer.setHorizontalAlignment(JLabel.CENTER)
-        builder.getVariable("downloads-table").setDefaultRenderer(Integer.class, centerRenderer)
+        downloadsTable.setDefaultRenderer(Integer.class, centerRenderer)
+        
+        downloadsTable.rowSorter.addRowSorterListener({evt -> lastDownloadSortEvent = evt})
+        downloadsTable.rowSorter.setSortsOnUpdates(true)
+        
+        downloadsTable.addMouseListener(new MouseAdapter() {
+            @Override
+            public void mouseReleased(MouseEvent e) {
+                if (e.isPopupTrigger())
+                    showDownloadsMenu(e)
+            }
+            @Override
+            public void mousePressed(MouseEvent e) {
+                if (e.isPopupTrigger())
+                    showDownloadsMenu(e)
+            }
+        })
+        
+        // shared files table
+        def sharedFilesTable = builder.getVariable("shared-files-table")
+        sharedFilesTable.columnModel.getColumn(1).setCellRenderer(new SizeRenderer())
+        
+        sharedFilesTable.rowSorter.addRowSorterListener({evt -> lastSharedSortEvent = evt})
+        sharedFilesTable.rowSorter.setSortsOnUpdates(true)
+        
+        JPopupMenu sharedFilesMenu = new JPopupMenu()
+//        JMenuItem unshareSelectedFiles = new JMenuItem("Unshare selected files")
+//        unshareSelectedFiles.addActionListener({mvcGroup.controller.unshareSelectedFiles()})
+        JMenuItem copyHashToClipboard = new JMenuItem("Copy hash to clipboard")
+        copyHashToClipboard.addActionListener({mvcGroup.view.copyHashToClipboard(sharedFilesTable)})
+        sharedFilesMenu.add(copyHashToClipboard)
+        sharedFilesTable.addMouseListener(new MouseAdapter() {
+            @Override
+            public void mouseReleased(MouseEvent e) {
+                if (e.isPopupTrigger())
+                    showPopupMenu(sharedFilesMenu, e)
+            }
+            @Override
+            public void mousePressed(MouseEvent e) {
+                if (e.isPopupTrigger())
+                    showPopupMenu(sharedFilesMenu, e)
+            }
+        })
+        
+        // searches table
+        def searchesTable = builder.getVariable("searches-table")
+        JPopupMenu searchTableMenu = new JPopupMenu()
+        JMenuItem copySearchToClipboard = new JMenuItem("Copy search to clipboard")
+        copySearchToClipboard.addActionListener({mvcGroup.view.copySearchToClipboard(searchesTable)})
+        searchTableMenu.add(copySearchToClipboard)
+        searchesTable.addMouseListener(new MouseAdapter() {
+            @Override
+            public void mouseReleased(MouseEvent e) {
+                if (e.isPopupTrigger())
+                    showPopupMenu(searchTableMenu, e)
+            }
+            @Override
+            public void mousePressed(MouseEvent e) {
+                if (e.isPopupTrigger())
+                    showPopupMenu(searchTableMenu, e)
+            }
+        })
+        
+    }
+    
+    private static void showPopupMenu(JPopupMenu menu, MouseEvent event) {
+        menu.show(event.getComponent(), event.getX(), event.getY())
+    }
+    
+    def copyHashToClipboard(JTable sharedFilesTable) {
+        int selected = sharedFilesTable.getSelectedRow()
+        if (selected < 0)
+            return
+        if (lastSharedSortEvent != null) 
+            selected = sharedFilesTable.rowSorter.convertRowIndexToModel(selected)
+        String root = Base64.encode(model.shared[selected].infoHash.getRoot())
+        StringSelection selection = new StringSelection(root)
+        def clipboard = Toolkit.getDefaultToolkit().getSystemClipboard()
+        clipboard.setContents(selection, null)
+    }
+    
+    def copySearchToClipboard(JTable searchesTable) {
+        int selected = searchesTable.getSelectedRow()
+        if (selected < 0)
+            return
+        String search = model.searches[selected].search
+        StringSelection selection = new StringSelection(search)
+        def clipboard = Toolkit.getDefaultToolkit().getSystemClipboard()
+        clipboard.setContents(selection, null)
+    }
+
+    int selectedDownloaderRow() {
+        int selected = builder.getVariable("downloads-table").getSelectedRow()
+        if (lastDownloadSortEvent != null)
+            selected = lastDownloadSortEvent.convertPreviousRowIndexToModel(selected)
+        selected
+    }
+    
+    def showDownloadsMenu(MouseEvent e) {
+        int selected = selectedDownloaderRow()
+        if (selected < 0)
+            return
+        boolean cancelEnabled = false
+        boolean retryEnabled = false
+        Downloader downloader = model.downloads[selected].downloader
+        switch(downloader.currentState) {
+            case Downloader.DownloadState.DOWNLOADING:
+            case Downloader.DownloadState.HASHLIST:
+            case Downloader.DownloadState.CONNECTING:
+                cancelEnabled = true
+                retryEnabled = false
+                break
+            case Downloader.DownloadState.FAILED:
+                cancelEnabled = true
+                retryEnabled = true
+                break
+            default :
+                cancelEnabled = false
+                retryEnabled = false
+        }
+        
+        JPopupMenu menu = new JPopupMenu()
+        JMenuItem copyHashToClipboard = new JMenuItem("Copy hash to clipboard")
+        copyHashToClipboard.addActionListener({
+            String hash = Base64.encode(downloader.infoHash.getRoot())
+            StringSelection selection = new StringSelection(hash)
+            def clipboard = Toolkit.getDefaultToolkit().getSystemClipboard()
+            clipboard.setContents(selection, null)
+        })
+        menu.add(copyHashToClipboard)
+        
+        if (cancelEnabled) {
+            JMenuItem cancel = new JMenuItem("Cancel")
+            cancel.addActionListener({mvcGroup.controller.cancel()})
+            menu.add(cancel)
+        }
+        
+        if (retryEnabled) {
+            JMenuItem retry = new JMenuItem("Retry")
+            retry.addActionListener({mvcGroup.controller.resume()})
+            menu.add(retry)
+        }
+        
+        showPopupMenu(menu, e)
     }
     
     def showSearchWindow = {

gui/griffon-app/views/com/muwire/gui/OptionsView.groovy

@@ -25,6 +25,8 @@ class OptionsView {
     def d
     def p
     def i
+    def u
+    
     def retryField
     def updateField
     def allowUntrustedCheckbox
@@ -35,6 +37,14 @@ class OptionsView {
     def outboundLengthField
     def outboundQuantityField
 
+    def lnfField
+    def monitorCheckbox
+    def fontField
+    def clearCancelledDownloadsCheckbox
+    def clearFinishedDownloadsCheckbox
+    def excludeLocalResultCheckbox
+    def showSearchHashesCheckbox
+    
     def buttonsPanel    
     
     def mainFrame
@@ -72,6 +82,24 @@ class OptionsView {
             label(text : "Outbound Quantity", constraints : gbc(gridx:0, gridy:4))
             outboundQuantityField = textField(text : bind {model.outboundQuantity}, columns : 2, constraints : gbc(gridx:1, gridy:4))
         }
+        u = builder.panel {
+            gridBagLayout()
+            label(text : "Changing these settings requires a restart", constraints : gbc(gridx : 0, gridy : 0, gridwidth: 2))
+            label(text : "Look And Feel", constraints : gbc(gridx: 0, gridy:1))
+            lnfField = textField(text : bind {model.lnf}, columns : 4, constraints : gbc(gridx : 1, gridy : 1))
+            label(text : "Font", constraints : gbc(gridx: 0, gridy : 2))
+            fontField = textField(text : bind {model.font}, columns : 4, constraints : gbc(gridx : 1, gridy:2))
+            label(text : "Show Monitor", constraints : gbc(gridx :0, gridy: 3))
+            monitorCheckbox = checkBox(selected : bind {model.showMonitor}, constraints : gbc(gridx : 1, gridy: 3))
+            label(text : "Clear Cancelled Downloads", constraints: gbc(gridx: 0, gridy:4))
+            clearCancelledDownloadsCheckbox = checkBox(selected : bind {model.clearCancelledDownloads}, constraints : gbc(gridx : 1, gridy:4))
+            label(text : "Clear Finished Downloads", constraints: gbc(gridx: 0, gridy:5))
+            clearFinishedDownloadsCheckbox = checkBox(selected : bind {model.clearFinishedDownloads}, constraints : gbc(gridx : 1, gridy:5))
+            label(text : "Exclude Local Files From Results", constraints: gbc(gridx:0, gridy:6))
+            excludeLocalResultCheckbox = checkBox(selected : bind {model.excludeLocalResult}, constraints : gbc(gridx: 1, gridy : 6))
+            label(text : "Show Hash Searches In Monitor", constraints: gbc(gridx:0, gridy:7))
+            showSearchHashesCheckbox = checkBox(selected : bind {model.showSearchHashes}, constraints : gbc(gridx: 1, gridy: 7))
+        }
         buttonsPanel = builder.panel {
             gridBagLayout()
             button(text : "Save", constraints : gbc(gridx : 1, gridy: 2), saveAction)
@@ -81,8 +109,9 @@ class OptionsView {
     
     void mvcGroupInit(Map<String,String> args) {
         def tabbedPane = new JTabbedPane()
-        tabbedPane.addTab("MuWire Options", p)
-        tabbedPane.addTab("I2P Options", i)
+        tabbedPane.addTab("MuWire", p)
+        tabbedPane.addTab("I2P", i)
+        tabbedPane.addTab("GUI", u)
                 
         JPanel panel = new JPanel()
         panel.setLayout(new BorderLayout())

gui/griffon-app/views/com/muwire/gui/SearchTabView.groovy

@@ -4,14 +4,26 @@ import griffon.core.artifact.GriffonView
 import griffon.core.mvc.MVCGroup
 import griffon.inject.MVCMember
 import griffon.metadata.ArtifactProviderFor
+import net.i2p.data.Base64
 import net.i2p.data.DataHelper
 
+import javax.swing.JComponent
 import javax.swing.JLabel
+import javax.swing.JMenuItem
+import javax.swing.JPopupMenu
+import javax.swing.JTable
 import javax.swing.ListSelectionModel
 import javax.swing.SwingConstants
 import javax.swing.table.DefaultTableCellRenderer
 
+import com.muwire.core.util.DataUtil
+
 import java.awt.BorderLayout
+import java.awt.Color
+import java.awt.Toolkit
+import java.awt.datatransfer.StringSelection
+import java.awt.event.MouseAdapter
+import java.awt.event.MouseEvent
 
 import javax.annotation.Nonnull
 
@@ -26,6 +38,7 @@ class SearchTabView {
     def parent
     def searchTerms
     def resultsTable
+    def lastSortEvent
     
     void initUI() {
         builder.with {
@@ -34,11 +47,11 @@ class SearchTabView {
                 resultsTable = table(id : "results-table", autoCreateRowSorter : true) {
                     tableModel(list: model.results) {
                         closureColumn(header: "Name", preferredWidth: 350, type: String, read : {row -> row.name.replace('<','_')})
-                        closureColumn(header: "Size", preferredWidth: 50, type: String, read : {row -> DataHelper.formatSize2Decimal(row.size, false)+"B"})
+                        closureColumn(header: "Size", preferredWidth: 50, type: Long, read : {row -> row.size})
                         closureColumn(header: "Sources", preferredWidth: 10, type : Integer, read : { row -> model.hashBucket[row.infohash].size()})
                         closureColumn(header: "Sender", preferredWidth: 170, type: String, read : {row -> row.sender.getHumanReadableName()})
                         closureColumn(header: "Trust", preferredWidth: 50, type: String, read : {row ->
-                          model.core.trustService.getLevel(row.sender.destination)
+                          model.core.trustService.getLevel(row.sender.destination).toString()
                         })
                     }
                 }
@@ -84,6 +97,35 @@ class SearchTabView {
         resultsTable.columnModel.getColumn(1).setCellRenderer(centerRenderer)
         resultsTable.setDefaultRenderer(Integer.class,centerRenderer)
         resultsTable.columnModel.getColumn(4).setCellRenderer(centerRenderer)
+        
+        resultsTable.columnModel.getColumn(1).setCellRenderer(new SizeRenderer())
+        
+        
+        resultsTable.rowSorter.addRowSorterListener({ evt -> lastSortEvent = evt})
+        resultsTable.rowSorter.setSortsOnUpdates(true)
+        
+        
+        JPopupMenu menu = new JPopupMenu()
+        JMenuItem download = new JMenuItem("Download")
+        download.addActionListener({mvcGroup.parentGroup.controller.download()})
+        menu.add(download)
+        JMenuItem copyHashToClipboard = new JMenuItem("Copy hash to clipboard")
+        copyHashToClipboard.addActionListener({mvcGroup.view.copyHashToClipboard()})
+        menu.add(copyHashToClipboard)
+        resultsTable.addMouseListener(new MouseAdapter() {
+            @Override
+            public void mouseClicked(MouseEvent e) {
+                if (e.button == MouseEvent.BUTTON3)
+                    showPopupMenu(menu, e)
+                else if (e.button == MouseEvent.BUTTON1 && e.clickCount == 2)
+                    mvcGroup.parentGroup.controller.download()
+            }
+            @Override
+            public void mouseReleased(MouseEvent e) {
+                if (e.button == MouseEvent.BUTTON3)
+                    showPopupMenu(menu, e)
+            }
+        })
     }
     
     def closeTab = {
@@ -92,4 +134,21 @@ class SearchTabView {
         mvcGroup.parentGroup.model.searchButtonsEnabled = false
         mvcGroup.destroy()
     }
+    
+    def showPopupMenu(JPopupMenu menu, MouseEvent e) {
+        println "showing popup menu"
+        menu.show(e.getComponent(), e.getX(), e.getY())
+    }
+    
+    def copyHashToClipboard() {
+        int selected = resultsTable.getSelectedRow()
+        if (selected < 0)
+            return
+        if (lastSortEvent != null)
+            selected = resultsTable.rowSorter.convertRowIndexToModel(selected)
+        String hash = Base64.encode(model.results[selected].infohash.getRoot())
+        StringSelection selection = new StringSelection(hash)
+        def clipboard = Toolkit.getDefaultToolkit().getSystemClipboard()
+        clipboard.setContents(selection, null)
+    }
 }

gui/src/main/groovy/com/muwire/gui/SizeRenderer.groovy

@@ -0,0 +1,29 @@
+package com.muwire.gui
+
+import javax.swing.JComponent
+import javax.swing.JLabel
+import javax.swing.JTable
+import javax.swing.table.DefaultTableCellRenderer
+
+import net.i2p.data.DataHelper
+
+class SizeRenderer extends DefaultTableCellRenderer {
+    SizeRenderer() {
+        setHorizontalAlignment(JLabel.CENTER)
+    }
+    @Override
+    JComponent getTableCellRendererComponent(JTable table, Object value,
+        boolean isSelected, boolean hasFocus, int row, int column) {
+        Long l = (Long) value
+        String formatted = DataHelper.formatSize2Decimal(l, false)+"B"
+        setText(formatted)
+        if (isSelected) {
+            setForeground(table.getSelectionForeground())
+            setBackground(table.getSelectionBackground())
+        } else {
+            setForeground(table.getForeground())
+            setBackground(table.getBackground())
+        }
+        this
+    }
+}

gui/src/main/groovy/com/muwire/gui/UISettings.groovy

@@ -0,0 +1,37 @@
+package com.muwire.gui
+
+class UISettings {
+    
+    String lnf
+    boolean showMonitor
+    String font
+    boolean clearCancelledDownloads
+    boolean clearFinishedDownloads
+    boolean excludeLocalResult
+    boolean showSearchHashes
+    
+    UISettings(Properties props) {
+        lnf = props.getProperty("lnf", "system")
+        showMonitor = Boolean.parseBoolean(props.getProperty("showMonitor", "true"))
+        font = props.getProperty("font",null)
+        clearCancelledDownloads = Boolean.parseBoolean(props.getProperty("clearCancelledDownloads","false"))
+        clearFinishedDownloads = Boolean.parseBoolean(props.getProperty("clearFinishedDownloads","false"))
+        excludeLocalResult = Boolean.parseBoolean(props.getProperty("excludeLocalResult","false"))
+        showSearchHashes = Boolean.parseBoolean(props.getProperty("showSearchHashes","false"))
+    }
+    
+    void write(OutputStream out) throws IOException {
+        Properties props = new Properties()
+        props.setProperty("lnf", lnf)
+        props.setProperty("showMonitor", String.valueOf(showMonitor))
+        props.setProperty("clearCancelledDownloads", String.valueOf(clearCancelledDownloads))
+        props.setProperty("clearFinishedDownloads", String.valueOf(clearFinishedDownloads))
+        props.setProperty("excludeLocalResult", String.valueOf(excludeLocalResult))
+        props.setProperty("showSearchHashes", String.valueOf(showSearchHashes))
+        if (font != null)
+            props.setProperty("font", font)
+            
+            
+        props.store(out, "UI Properties")
+    }
+}