briar-headless: Address first round of review comments

briar-headless/README.md

@@ -8,7 +8,7 @@ or to develop your own user interface for it.
 ## How to use
 
 The REST API client comes as a `jar` file
-and needs a Java Runtime Environment (JRE).
+and needs a Java Runtime Environment (JRE) that supports at least Java 8.
 It currently works only on GNU/Linux operating systems.
 
 You can start the client (and its API server) like this:
@@ -152,6 +152,9 @@ You can test connecting to the websocket with curl:
            --header "Sec-WebSocket-Version: 13" \
            http://DZbfoUie8sjap7CSDR9y6cgJCojV+xUITTIFbgtAgqk=@127.0.0.1:7000/v1/ws
 
+The headers are only required when testing with curl.
+Your websocket client will most likely add these headers automatically.
+
 ### Receiving new private messages
 
 When the Briar client receives a new private message,

briar-headless/src/main/java/org/briarproject/briar/headless/BriarService.kt

@@ -26,7 +26,7 @@ constructor(
         if (!accountManager.accountExists()) {
             createAccount()
         } else {
-            val password = prompt("Password")
+            val password = prompt("Password", hideInput = true)
                 ?: throw UsageError("Could not get password. Is STDIN connected?")
             if (!accountManager.signIn(password)) {
                 echo("Error: Password invalid")
@@ -49,11 +49,12 @@ constructor(
                 throw UsageError("Please choose a shorter nickname!")
             nickname
         }
-        val password = prompt("Password") { password ->
+        val password =
-            if (passwordStrengthEstimator.estimateStrength(password) < QUITE_WEAK)
+            prompt("Password", hideInput = true, requireConfirmation = true) { password ->
-                throw UsageError("Please enter a stronger password!")
+                if (passwordStrengthEstimator.estimateStrength(password) < QUITE_WEAK)
-            password
+                    throw UsageError("Please enter a stronger password!")
-        }
+                password
+            }
         if (nickname == null || password == null)
             throw UsageError("Could not get account information. Is STDIN connected?")
         accountManager.createAccount(nickname, password)

briar-headless/src/main/java/org/briarproject/briar/headless/HeadlessModule.kt

@@ -109,7 +109,7 @@ internal class HeadlessModule(private val appDir: File) {
 
     @Provides
     @Singleton
-    internal fun provideWebSocketHandler(
+    internal fun provideWebSocketController(
         webSocketController: WebSocketControllerImpl
     ): WebSocketController {
         return webSocketController

briar-headless/src/main/java/org/briarproject/briar/headless/Router.kt

@@ -40,7 +40,6 @@ constructor(
             .port(port)
             .disableStartupBanner()
             .enableCaseSensitiveUrls()
-            .enableRouteOverview("/")
             .event(SERVER_START_FAILED) { stop() }
             .event(SERVER_STOPPED) { stop() }
         if (debug) app.enableDebugLogging()

briar-headless/src/main/java/org/briarproject/briar/headless/event/WebSocketControllerImpl.kt

@@ -2,7 +2,12 @@ package org.briarproject.briar.headless.event
 
 import io.javalin.json.JavalinJson.toJson
 import io.javalin.websocket.WsSession
+import org.briarproject.bramble.util.LogUtils.logException
+import org.eclipse.jetty.websocket.api.WebSocketException
+import java.io.IOException
 import java.util.concurrent.ConcurrentHashMap
+import java.util.logging.Level
+import java.util.logging.Logger
 import javax.annotation.concurrent.Immutable
 import javax.inject.Inject
 import javax.inject.Singleton
@@ -12,12 +17,20 @@ import javax.inject.Singleton
 internal class WebSocketControllerImpl @Inject constructor() :
     WebSocketController {
 
+    private val logger: Logger = Logger.getLogger(this.javaClass.name)
+
     override val sessions: MutableSet<WsSession> = ConcurrentHashMap.newKeySet<WsSession>()
 
     override fun sendEvent(name: String, obj: Any) {
         sessions.forEach { session ->
             val event = OutputEvent(name, obj)
-            session.send(toJson(event))
+            try {
+                session.send(toJson(event))
+            } catch (e: WebSocketException) {
+                logException(logger, Level.WARNING, e)
+            } catch (e: IOException) {
+                logException(logger, Level.WARNING, e)
+            }
         }
     }