support UTF-8 in persona names

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

@@ -191,8 +191,9 @@ public class Core {
         def baos = new ByteArrayOutputStream()
         def daos = new DataOutputStream(baos)
         daos.write(Constants.PERSONA_VERSION)
-        daos.writeShort((short)props.getNickname().length())
-        daos.write(props.getNickname().getBytes(StandardCharsets.UTF_8))
+        byte [] name = props.getNickname().getBytes(StandardCharsets.UTF_8)
+        daos.writeShort((short)name.length)
+        daos.write(name)
         destination.writeBytes(daos)
         daos.flush()
         byte [] payload = baos.toByteArray()
@@ -335,8 +336,7 @@ public class Core {
             return
         }
         log.info("saving settings")
-        File f = new File(home, "MuWire.properties")
-        f.withOutputStream { muOptions.write(it) }
+        saveMuSettings()
         log.info("shutting down trust subscriber")
         trustSubscriber.stop()
         log.info("shutting down download manageer")
@@ -357,6 +357,11 @@ public class Core {
         }
         log.info("shutdown complete")
     }
+    
+    public void saveMuSettings() {
+        File f = new File(home, "MuWire.properties")
+        f.withPrintWriter("UTF-8", { muOptions.write(it) })
+    }
 
     static main(args) {
         def home = System.getProperty("user.home") + File.separator + ".MuWire"

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

@@ -93,7 +93,7 @@ class MuWireSettings {
         
     }
 
-    void write(OutputStream out) throws IOException {
+    void write(Writer out) throws IOException {
         Properties props = new Properties()
         props.setProperty("leaf", isLeaf.toString())
         props.setProperty("allowUntrusted", allowUntrusted.toString())
@@ -137,7 +137,7 @@ class MuWireSettings {
             props.setProperty("trustSubscriptions", encoded)
         }
 
-        props.store(out, "")
+        props.store(out, "This file is UTF-8")
     }
     
     private static Set<String> readEncodedSet(Properties props, String property) {

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

@@ -22,8 +22,9 @@ public class Name {
 
     public void write(OutputStream out) throws IOException {
         DataOutputStream dos = new DataOutputStream(out)
-        dos.writeShort(name.length())
-        dos.write(name.getBytes(StandardCharsets.UTF_8))
+        byte [] bytes = name.getBytes(StandardCharsets.UTF_8)
+        dos.writeShort(bytes.length)
+        dos.write(bytes)
     }
 
     public getName() {

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

@@ -86,9 +86,9 @@ class DirectoryWatcher {
     
     private void saveMuSettings() {
         File muSettingsFile = new File(home, "MuWire.properties")
-        muSettingsFile.withOutputStream {
+        muSettingsFile.withPrintWriter("UTF-8", {
             muOptions.write(it)
-        }
+        })
     }
 
     private void watch() {

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

@@ -97,9 +97,6 @@ class ContentPanelController {
     }
     
     void saveMuWireSettings() {
-        File f = new File(core.home, "MuWire.properties")
-        f.withOutputStream {
-            core.muOptions.write(it)
-        }
+        core.saveMuSettings()
     }
 }

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

@@ -299,10 +299,7 @@ class MainFrameController {
     }
 
     void saveMuWireSettings() {
-        File f = new File(core.home, "MuWire.properties")
-        f.withOutputStream {
-            core.muOptions.write(it)
-        }
+        core.saveMuSettings()
     }
 
     void mvcGroupInit(Map<String, String> args) {

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

@@ -137,10 +137,7 @@ class OptionsController {
         model.trustListInterval = trustListInterval
         settings.trustListInterval = Integer.parseInt(trustListInterval)
 
-        File settingsFile = new File(core.home, "MuWire.properties")
-        settingsFile.withOutputStream {
-            settings.write(it)
-        }
+        core.saveMuSettings()
 
         // UI Setttings
 

gui/griffon-app/lifecycle/Ready.groovy

@@ -41,9 +41,9 @@ class Ready extends AbstractLifecycleHandler {
         def propsFile = new File(home, "MuWire.properties")
         if (propsFile.exists()) {
             log.info("loading existing props file")
-            propsFile.withInputStream {
+            propsFile.withReader("UTF-8", {
                 props.load(it)
-            }
+            })
             props = new MuWireSettings(props)
             if (props.incompleteLocation == null)
                 props.incompleteLocation = new File(home, "incompletes")
@@ -90,9 +90,9 @@ class Ready extends AbstractLifecycleHandler {
                 props.downloadLocation = chooser.getSelectedFile()
             }
 
-            propsFile.withOutputStream {
+            propsFile.withPrintWriter("UTF-8", {
                 props.write(it)
-            }
+            })
         }
 
         Core core