[ 
https://issues.apache.org/jira/browse/SSHD-1033?focusedWorklogId=458799&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-458799
 ]

ASF GitHub Bot logged work on SSHD-1033:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 14/Jul/20 17:12
            Start Date: 14/Jul/20 17:12
    Worklog Time Spent: 10m 
      Work Description: lgoldstein commented on a change in pull request #141:
URL: https://github.com/apache/mina-sshd/pull/141#discussion_r454512156



##########
File path: 
sshd-core/src/main/java/org/apache/sshd/common/forward/DefaultForwardingFilter.java
##########
@@ -964,7 +965,7 @@ protected void invokePortEventListenerSignallerHolders(
 
     @Override
     protected synchronized Closeable getInnerCloseable() {
-        return builder().parallel(toString(), 
dynamicLocal.values()).close(acceptor).build();
+        return builder().parallel(toString(), 
dynamicLocal.values()).close(dynamicAcceptor).build();

Review comment:
       Don't we need to close the local acceptor as well ?

##########
File path: 
sshd-core/src/main/java/org/apache/sshd/common/forward/DefaultForwardingFilter.java
##########
@@ -974,22 +975,36 @@ protected void preClose() {
         super.preClose();
     }
 
+       private IoAcceptor createIoAcceptor(Factory<? extends IoHandler> 
handlerFactory) {
+               Session session = getSession();
+               FactoryManager manager = 
Objects.requireNonNull(session.getFactoryManager(), "No factory manager");
+               IoServiceFactory factory = 
Objects.requireNonNull(manager.getIoServiceFactory(), "No I/O service factory");
+               IoHandler handler = handlerFactory.create();
+               return factory.createAcceptor(handler);
+       }
+
+       private IoAcceptor getLocalIoAcceptor(Factory<? extends IoHandler> 
handlerFactory) {
+               if (localAcceptor == null) {
+                       localAcceptor = createIoAcceptor(handlerFactory);
+               }
+               return localAcceptor;
+       }
+
+       private IoAcceptor getDynamicIoAcceptor(Factory<? extends IoHandler> 
handlerFactory) {

Review comment:
       Let's make these `protected` in accordance with our policy to enable 
users to easily override our implementation if they see fit.




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Issue Time Tracking
-------------------

    Worklog Id:     (was: 458799)
    Time Spent: 1h 40m  (was: 1.5h)

> Unable to use DynamicPortForwarding + LocalPortForwarding
> ---------------------------------------------------------
>
>                 Key: SSHD-1033
>                 URL: https://issues.apache.org/jira/browse/SSHD-1033
>             Project: MINA SSHD
>          Issue Type: Bug
>    Affects Versions: 2.5.1
>            Reporter: Guillermo Grandes
>            Priority: Major
>              Labels: easyfix, pull-request-available, ready-to-commit
>          Time Spent: 1h 40m
>  Remaining Estimate: 0h
>
> This is the error running LocalForwarder + DynamicForwarder:
> {code:none}
> [sshd-SshClient[457e2f02]-nio2-thread-6] WARN 
> org.apache.sshd.common.forward.DefaultForwardingFilter - 
> sessionCreated(Nio2Session[local=/127.0.0.1:8000, 
> remote=/127.0.0.1:57657])[local=/127.0.0.1:8000, remote=null] cannot locate 
> original local entry for accepted=/127.0.0.1:8000
> [sshd-SshClient[457e2f02]-nio2-thread-2] WARN 
> org.apache.sshd.client.channel.ClientChannelPendingMessagesQueue - 
> operationComplete(ClientChannelPendingMessagesQueue[channel=TcpipClientChannel[id=1,
>  recipient=-1]-ClientSessionImpl[testuser@/192.168.x.x:22], open=false]) 
> SshChannelOpenException[open failed] signaled
> [sshd-SshClient[457e2f02]-nio2-thread-2] WARN 
> org.apache.sshd.common.forward.DefaultForwardingFilter - Failed 
> (SshChannelOpenException) to open channel for 
> session=Nio2Session[local=/127.0.0.1:8000, remote=/127.0.0.1:57657]: open 
> failed
> {code}
> This is the code to reproduce.
>  * When testLocal = true, testDynamic = true; dynamic fail.
>  * if the order of test are inverted, fail the local instead of dynamic.
>  * if one test is false, the other works well.
> {code:java}
> import java.io.BufferedReader;
> import java.io.IOException;
> import java.io.InputStreamReader;
> import java.net.HttpURLConnection;
> import java.net.InetSocketAddress;
> import java.net.Proxy;
> import java.net.URL;
> import org.apache.sshd.client.SshClient;
> import org.apache.sshd.client.future.ConnectFuture;
> import org.apache.sshd.client.keyverifier.AcceptAllServerKeyVerifier;
> import org.apache.sshd.client.session.ClientSession;
> import org.apache.sshd.client.session.forward.DynamicPortForwardingTracker;
> import org.apache.sshd.client.session.forward.ExplicitPortForwardingTracker;
> import org.apache.sshd.common.util.net.SshdSocketAddress;
> public class SSHClient {
>       public static void test(final String username, final String password, 
> final String host, final int port)
>                       throws IOException {
>               boolean testLocal = true, testDynamic = true;
>               try (SshClient client = SshClient.setUpDefaultClient()) {
>                       
> client.setServerKeyVerifier(AcceptAllServerKeyVerifier.INSTANCE);
>                       client.start();
>                       try {
>                               ConnectFuture connect = 
> client.connect(username, host, port);
>                               connect.await(10000);
>                               ClientSession session = 
> connect.getClientSession();
>                               session.addPasswordIdentity(password);
>                               session.auth().verify(10000);
>                               if (testLocal) {
>                                       System.out.println("================== 
> Local ==================");
>                                       ExplicitPortForwardingTracker 
> localTracker = session.createLocalPortForwardingTracker(
>                                                       new 
> SshdSocketAddress("localhost", 8082),
>                                                       new 
> SshdSocketAddress("test.javastack.org", 80));
>                                       sleep(1000);
>                                       
> System.out.println("LocalPortForwarding: " //
>                                                       + 
> localTracker.getLocalAddress() + " -> " //
>                                                       + 
> localTracker.getRemoteAddress());
>                                       SshdSocketAddress localSocketAddress = 
> localTracker.getLocalAddress();
>                                       if (localSocketAddress != null) {
>                                               Proxy proxy = new 
> Proxy(Proxy.Type.HTTP,
>                                                               new 
> InetSocketAddress(localSocketAddress.getHostName(), //
>                                                                               
> localSocketAddress.getPort()));
>                                               testRemoteURL(proxy);
>                                       }
>                               }
>                               if (testDynamic) {
>                                       System.out.println("================== 
> Dynamic ==================");
>                                       DynamicPortForwardingTracker 
> dynamicTracker = session
>                                                       
> .createDynamicPortForwardingTracker(new SshdSocketAddress("localhost", 8000));
>                                       sleep(1000);
>                                       
> System.out.println("DynamicPortForwarding: " //
>                                                       + 
> dynamicTracker.getLocalAddress());
>                                       SshdSocketAddress dynamicSocketAddress 
> = dynamicTracker.getLocalAddress();
>                                       if (dynamicSocketAddress != null) {
>                                               Proxy proxy = new 
> Proxy(Proxy.Type.SOCKS,
>                                                               new 
> InetSocketAddress(dynamicSocketAddress.getHostName(), //
>                                                                               
> dynamicSocketAddress.getPort()));
>                                               testRemoteURL(proxy);
>                                       }
>                               }
>                               // @see 
> org.apache.sshd.common.forward.DefaultForwardingFilter#sessionCreated
>                               sleep(1000);
>                       } finally {
>                               client.stop();
>                       }
>               }
>       }
>       private static final void sleep(final long t) {
>               try {
>                       Thread.sleep(t);
>               } catch (Exception ign) {
>               }
>       }
>       private static final void testRemoteURL(final Proxy proxy) throws 
> IOException {
>               HttpURLConnection connection = (HttpURLConnection) new 
> URL("http://test.javastack.org/";)
>                               .openConnection(proxy);
>               System.out.println("Get URL: " + connection.getURL());
>               try {
>                       BufferedReader in = new BufferedReader(new 
> InputStreamReader(connection.getInputStream()));
>                       System.out.println("Response from server:");
>                       String inputLine;
>                       while ((inputLine = in.readLine()) != null) {
>                               System.out.println(inputLine);
>                       }
>                       in.close();
>               } catch (Exception e) {
>                       System.out.println("Failed: " + e);
>               }
>       }
> }
> {code}
> {code:xml}
> <!-- dependencies used --->
> <dependency>
>   <groupId>org.apache.sshd</groupId>
>   <artifactId>sshd-core</artifactId>
>   <version>2.5.1</version>
> </dependency>
> <dependency>
>   <groupId>org.apache.mina</groupId>
>   <artifactId>mina-core</artifactId>
>   <version>2.1.3</version>
> </dependency>
> <dependency>
>   <groupId>org.slf4j</groupId>
>   <artifactId>slf4j-api</artifactId>
>   <version>1.7.30</version>
> </dependency>
> <dependency>
>   <groupId>org.slf4j</groupId>
>   <artifactId>slf4j-simple</artifactId>
>   <version>1.7.30</version>
> </dependency>
> {code}



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