improve tor identity management

src/main/java/com/sparrowwallet/sparrow/TorLogHandler.java

@@ -2,11 +2,16 @@ package com.sparrowwallet.sparrow;
 
 import com.sparrowwallet.drongo.LogHandler;
 import com.sparrowwallet.sparrow.event.TorStatusEvent;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.slf4j.event.Level;
 
 public class TorLogHandler implements LogHandler {
+    private static final Logger log = LoggerFactory.getLogger(TorLogHandler.class);
+
     @Override
     public void handleLog(String threadName, Level level, String message, String loggerName, long timestamp, StackTraceElement[] callerData) {
+        log.debug(message);
         EventManager.get().post(new TorStatusEvent(message));
     }
 }

src/main/java/com/sparrowwallet/sparrow/control/MixStatusCell.java

@@ -13,6 +13,7 @@ import com.sparrowwallet.sparrow.whirlpool.WhirlpoolException;
 import javafx.geometry.Pos;
 import javafx.scene.control.*;
 import org.controlsfx.glyphfont.Glyph;
+import org.controlsfx.tools.Platform;
 
 public class MixStatusCell extends TreeTableCell<Entry, UtxoEntry.MixStatus> {
     public MixStatusCell() {
@@ -68,7 +69,8 @@ public class MixStatusCell extends TreeTableCell<Entry, UtxoEntry.MixStatus> {
             Tooltip tt = new Tooltip();
             tt.setText(mixFailReason.getMessage() + (mixError == null ? "" : ": " + mixError) +
                     "\nMix failures are generally caused by peers disconnecting during a mix." +
-                    "\nMake sure your internet connection is stable and the computer is configured to prevent sleeping.");
+                    "\nMake sure your internet connection is stable and the computer is configured to prevent sleeping." +
+                    "\nTo prevent sleeping, use the " + getPlatformSleepConfig() + " or enable the function in the Tools menu.");
             setTooltip(tt);
         } else {
             setGraphic(null);
@@ -76,6 +78,17 @@ public class MixStatusCell extends TreeTableCell<Entry, UtxoEntry.MixStatus> {
         }
     }
 
+    private String getPlatformSleepConfig() {
+        Platform platform = Platform.getCurrent();
+        if(platform == Platform.OSX) {
+            return "OSX System Preferences";
+        } else if(platform == Platform.WINDOWS) {
+            return "Windows Control Panel";
+        }
+
+        return "system power settings";
+    }
+
     private void setMixProgress(MixProgress mixProgress) {
         if(mixProgress.getMixStep() != MixStep.FAIL) {
             ProgressIndicator progressIndicator = getProgressIndicator();

src/main/java/com/sparrowwallet/sparrow/net/TorService.java

@@ -3,15 +3,14 @@ package com.sparrowwallet.sparrow.net;
 import javafx.concurrent.ScheduledService;
 import javafx.concurrent.Task;
 import net.freehaven.tor.control.TorControlError;
-import org.berndpruenster.netlayer.tor.NativeTor;
-import org.berndpruenster.netlayer.tor.Tor;
-import org.berndpruenster.netlayer.tor.TorCtlException;
-import org.berndpruenster.netlayer.tor.Torrc;
+import org.berndpruenster.netlayer.tor.*;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.File;
 import java.io.IOException;
+import java.lang.reflect.Field;
+import java.net.Socket;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.Collections;
@@ -40,6 +39,7 @@ public class TorService extends ScheduledService<NativeTor> {
                     try {
                         LinkedHashMap<String, String> torrcOptionsMap = new LinkedHashMap<>();
                         torrcOptionsMap.put("SocksPort", Integer.toString(PROXY_PORT));
+                        torrcOptionsMap.put("HashedControlPassword", "16:D780432418F09B06609940000924317D3B9DF522A3191F8F4E597E9329");
                         torrcOptionsMap.put("DisableNetwork", "0");
                         Torrc override = new Torrc(torrcOptionsMap);
 
@@ -62,4 +62,25 @@ public class TorService extends ScheduledService<NativeTor> {
             }
         };
     }
+
+    public static Socket getControlSocket() {
+        Tor tor = Tor.getDefault();
+        if(tor != null) {
+            try {
+                Class<?> torClass = Class.forName("org.berndpruenster.netlayer.tor.Tor");
+                Field torControllerField = torClass.getDeclaredField("torController");
+                torControllerField.setAccessible(true);
+                TorController torController = (TorController)torControllerField.get(tor);
+
+                Class<?> torControllerClass = Class.forName("org.berndpruenster.netlayer.tor.TorController");
+                Field socketField = torControllerClass.getDeclaredField("socket");
+                socketField.setAccessible(true);
+                return (Socket)socketField.get(torController);
+            } catch(Exception e) {
+                log.error("Error retrieving Tor control socket", e);
+            }
+        }
+
+        return null;
+    }
 }

src/main/java/com/sparrowwallet/sparrow/whirlpool/Whirlpool.java

@@ -42,6 +42,7 @@ import com.sparrowwallet.sparrow.whirlpool.dataPersister.SparrowDataPersister;
 import com.sparrowwallet.sparrow.whirlpool.dataSource.SparrowDataSource;
 import com.sparrowwallet.sparrow.whirlpool.dataSource.SparrowMinerFeeSupplier;
 import com.sparrowwallet.sparrow.whirlpool.dataSource.SparrowPostmixHandler;
+import com.sparrowwallet.sparrow.whirlpool.tor.SparrowTorClientService;
 import javafx.application.Platform;
 import javafx.beans.property.BooleanProperty;
 import javafx.beans.property.SimpleBooleanProperty;
@@ -87,7 +88,7 @@ public class Whirlpool {
         this.whirlpoolServer = WhirlpoolServer.valueOf(network.getName().toUpperCase());
         this.httpClientService = new JavaHttpClientService(torProxy);
         this.stompClientService = new JavaStompClientService(httpClientService);
-        this.torClientService = new WhirlpoolTorClientService();
+        this.torClientService = new SparrowTorClientService(this);
 
         this.whirlpoolWalletService = new WhirlpoolWalletService();
         this.config = computeWhirlpoolWalletConfig(torProxy);

src/main/java/com/sparrowwallet/sparrow/whirlpool/tor/SparrowTorClientService.java

@@ -0,0 +1,49 @@
+package com.sparrowwallet.sparrow.whirlpool.tor;
+
+import com.google.common.net.HostAndPort;
+import com.samourai.tor.client.TorClientService;
+import com.sparrowwallet.sparrow.net.TorService;
+import com.sparrowwallet.sparrow.whirlpool.Whirlpool;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.net.Socket;
+
+public class SparrowTorClientService extends TorClientService {
+    private static final Logger log = LoggerFactory.getLogger(SparrowTorClientService.class);
+
+    private final Whirlpool whirlpool;
+
+    public SparrowTorClientService(Whirlpool whirlpool) {
+        this.whirlpool = whirlpool;
+    }
+
+    @Override
+    public void changeIdentity() {
+        HostAndPort proxy = whirlpool.getTorProxy();
+        if(proxy != null) {
+            Socket controlSocket = TorService.getControlSocket();
+            if(controlSocket != null) {
+                try {
+                    writeNewNym(controlSocket);
+                } catch(Exception e) {
+                    log.warn("Error sending NEWNYM to " + controlSocket, e);
+                }
+            } else {
+                HostAndPort control = HostAndPort.fromParts(proxy.getHost(), proxy.getPort() + 1);
+                try(Socket socket = new Socket(control.getHost(), control.getPort())) {
+                    writeNewNym(socket);
+                } catch(Exception e) {
+                    log.warn("Error connecting to " + control + ", no Tor ControlPort configured?");
+                }
+            }
+        }
+    }
+
+    private void writeNewNym(Socket socket) throws IOException {
+        log.debug("Sending NEWNYM to " + socket);
+        socket.getOutputStream().write("AUTHENTICATE \"\"\r\n".getBytes());
+        socket.getOutputStream().write("SIGNAL NEWNYM\r\n".getBytes());
+    }
+}

src/main/resources/com/sparrowwallet/sparrow/preferences/server.fxml

@@ -145,7 +145,7 @@
                 <PasswordField fx:id="corePass"/>
             </Field>
             <Field text="Use Proxy:">
-                <UnlabeledToggleSwitch fx:id="coreUseProxy"/>
+                <UnlabeledToggleSwitch fx:id="coreUseProxy"/><HelpLabel helpText="Bitcoin Core RPC onion URLs, and all other non-RPC external addresses will be connected via this proxy if configured." />
             </Field>
             <Field text="Proxy URL:">
                 <TextField fx:id="coreProxyHost" />
@@ -172,7 +172,7 @@
                 </Button>
             </Field>
             <Field text="Use Proxy:">
-                <UnlabeledToggleSwitch fx:id="useProxy"/>
+                <UnlabeledToggleSwitch fx:id="useProxy"/><HelpLabel helpText="All external addresses will be connected via this proxy if configured." />
             </Field>
             <Field text="Proxy URL:">
                 <TextField fx:id="proxyHost" />