Can you tell me how to setup the correct workflow here?

I would like to have:

incoming data (tcp) -> tls -> logicFlow.in
logicFlow.out -> tls -> outgoing (tcp)

Cheers and thanks for the help



On Monday, July 20, 2015 at 3:17:49 PM UTC+2, √ wrote:
>
> A Flow is a graph with 1 input and 1 output, you are connecting the 
> bidiflow (2 inputs and 2 outputs) to eachother, leaving no inputs nor 
> outputs open, which means it cannot be a Flow.
>
> On Mon, Jul 20, 2015 at 2:58 PM, Thomas Zimmer <[email protected] 
> <javascript:>> wrote:
>
>> Hey,
>>
>> I really have problems understanding the TLS Bidi-Flows. The specs are 
>> not very helpful as they only do "echo" the input as fas as I understood 
>> and there is not official documentation. What I have so far:
>>
>> * A TCP flow (Flow[ByteString, ByteString])
>> * A logical flow (Flow[ByteString, ByteString])
>>
>> How can i connect this to the TLS Bidi-Flow. Here is the code I tried:
>>
>> val session = 
>> NegotiateNewSession.withDefaults.withCipherSuites("TLS_RSA_WITH_AES_128_CBC_SHA")
>>
>>   
>> .withCipherSuites("TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256","TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",
>>  
>> "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384","TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA",
>>  "TLS_DHE_RSA_WITH_AES_256_CBC_SHA", 
>> "TLS_DHE_RSA_WITH_AES_128_CBC_SHA","TLS_RSA_WITH_AES_128_CBC_SHA256","TLS_RSA_WITH_AES_128_CBC_SHA",
>>  "TLS_RSA_WITH_AES_256_CBC_SHA256", "TLS_RSA_WITH_AES_256_CBC_SHA")
>>   .withProtocols("TLSv1.2")
>>   .withClientAuth(ClientAuth.None)
>>
>>
>> val closing = IgnoreComplete
>> val tlsHandler = SslTls(sslContext, session, akka.stream.io.Role.server, 
>> closing)
>> val logicalFlow = getLogicalFlow
>>
>> // SslTlsInbound to bytes
>> val inboundFlow: Flow[SslTlsInbound, ByteString, Unit] = 
>> Flow[SslTlsInbound].map {
>>   case SessionBytes(_, bytes: ByteString) =>
>>     log.info("Received bytes")
>>     bytes
>>   case SessionTruncated => sys.error("Truncated")
>> }
>>
>> // bytes to SslTlsOutbound
>> val outboundFlow: Flow[ByteString, SslTlsOutbound, Unit] = 
>> Flow[ByteString].map {
>>   case bytes: ByteString =>
>>     log.info("Sending bytes")
>>     SendBytes(bytes)
>> }
>>
>> val tlsFlow = Flow() { implicit builder =>
>>   import FlowGraph.Implicits._
>>
>>   val tls = builder.add(tlsHandler)
>>
>>   // Define outbound/inbound flows
>>   tls.out2 ~> inboundFlow ~> tls.in2
>>   // tls.out1 ~> outboundFlow ~> tls.in1
>>   tls.in1 <~ outboundFlow <~ tls.out1
>>
>>   // Define in/outlet
>>   (tls.in2, tls.out1)
>> }
>>
>>
>> // conn = Tcp.IncomingConnection
>>
>> conn.handleWith(tlsFlow)
>>
>>
>>
>> As soon as I start the application I get this error-message: 
>>
>>
>> Cannot build Flow with open inputs () and outputs ()
>> info] akka.actor.ActorInitializationException: exception during creation
>> info]  at akka.actor.ActorInitializationException$.apply(Actor.scala:166)
>> info]  at akka.actor.ActorCell.create(ActorCell.scala:596)
>> info]  at akka.actor.ActorCell.invokeAll$1(ActorCell.scala:456)
>> info]  at akka.actor.ActorCell.systemInvoke(ActorCell.scala:478)
>> info]  at akka.dispatch.Mailbox.processAllSystemMessages(Mailbox.scala:263)
>> info]  at akka.dispatch.Mailbox.run(Mailbox.scala:219)
>> info]  at 
>> akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:397)
>> info]  at 
>> scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
>> info]  at 
>> scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
>> info]  at 
>> scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
>> info]  at 
>> scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
>> info] Caused by: java.lang.IllegalArgumentException: Cannot build Flow with 
>> open inputs () and outputs ()
>> info]  at akka.stream.scaladsl.FlowGraph$Builder.buildFlow(Graph.scala:427)
>> info]  at akka.stream.scaladsl.FlowApply$class.apply(FlowApply.scala:18)
>> info]  at akka.stream.scaladsl.Flow$.apply(Flow.scala:313)
>>
>>
>> I do not understand where I should have open inputs or outputs? All the 
>> BIDI-Flow inputs should be in use?
>>
>>  -- 
>> >>>>>>>>>> Read the docs: http://akka.io/docs/
>> >>>>>>>>>> Check the FAQ: 
>> http://doc.akka.io/docs/akka/current/additional/faq.html
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>
>
>
> -- 
> Cheers,
> √
>  

-- 
>>>>>>>>>>      Read the docs: http://akka.io/docs/
>>>>>>>>>>      Check the FAQ: 
>>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html
>>>>>>>>>>      Search the archives: https://groups.google.com/group/akka-user
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