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  1. FtpServer
  2. FTPSERVER-111

Data channel cannot be opened in active mode

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 1.0.0-RC1
    • Core
    • None
    • Solaris, Linux, maybe others (Windows seems to work)

    Description

      FTP-Server with active mode running on Solaris/Linux
      Client connects to the server with active mode.
      Issue list command -> ok
      issue second list command -> client hangs

      Client commands:
      220 Service ready for new user.
      Name (localhost:username): test
      331 User name okay, need password for test.
      Password:
      230 User logged in, proceed.
      Remote system type is UNIX.
      ftp>
      ftp>
      ftp> ls
      200 Command PORT okay.
      150 File status okay; about to open data connection.
      directory1
      directory2
      226 Closing data connection.
      11 bytes received in 0.0099 seconds (1.08 Kbytes/s)
      ftp> ls
      200 Command PORT okay.
      150 File status okay; about to open data connection.
      <Client hangs here>

      Server-Log:
      15:38:08,581 INFO [UserManagerImpl] authenticate: Authentication for user <test> complete.
      15:38:08,583 DEBUG [UserManagerImpl] setUserConfigurations: Setting up user permissions...
      15:38:08,584 DEBUG [UserManagerImpl] setUserConfigurations: Write permission granted for user <test>
      15:38:08,597 DEBUG [FTPServerFtplet] onLogin:PASS *****
      15:38:08,627 INFO [MinaFtpProtocolHandler] [/10.0.0.239:33204] WRITE: 230 User logged in, proceed.
      15:38:08,628 INFO [PASS] Login success - test
      15:38:08,629 DEBUG [ExecutorFilter] Exiting since queue is empty for /10.0.0.239:33204
      15:38:08,629 INFO [MinaFtpProtocolHandler] [/10.0.0.239:33204] SENT: 230 User logged in, proceed.
      15:38:08,630 DEBUG [ExecutorFilter] Launching thread for /10.0.0.239:33204
      15:38:08,631 DEBUG [ExecutorFilter] Exiting since queue is empty for /10.0.0.239:33204
      15:38:08,631 INFO [MinaFtpProtocolHandler] [/10.0.0.239:33204] RECEIVED: SYST
      15:38:08,632 DEBUG [ExecutorFilter] Launching thread for /10.0.0.239:33204
      15:38:08,632 INFO [MinaFtpProtocolHandler] [/10.0.0.239:33204] WRITE: 215 UNIX Type: Apache FTP Server
      15:38:08,634 DEBUG [ExecutorFilter] Exiting since queue is empty for /10.0.0.239:33204
      15:38:08,634 INFO [MinaFtpProtocolHandler] [/10.0.0.239:33204] SENT: 215 UNIX Type: Apache FTP Server
      15:38:08,635 DEBUG [ExecutorFilter] Launching thread for /10.0.0.239:33204
      15:38:08,635 DEBUG [ExecutorFilter] Exiting since queue is empty for /10.0.0.239:33204
      15:38:11,153 INFO [MinaFtpProtocolHandler] [/10.0.0.239:33204] RECEIVED: PORT 10,0,0,239,129,181
      15:38:11,156 DEBUG [ExecutorFilter] Launching thread for /10.0.0.239:33204
      15:38:11,157 INFO [MinaFtpProtocolHandler] [/10.0.0.239:33204] WRITE: 510 PORT is disabled.
      15:38:11,158 DEBUG [ExecutorFilter] Exiting since queue is empty for /10.0.0.239:33204
      15:38:11,158 INFO [MinaFtpProtocolHandler] [/10.0.0.239:33204] SENT: 510 PORT is disabled.
      15:38:11,159 DEBUG [ExecutorFilter] Launching thread for /10.0.0.239:33204
      15:38:11,160 DEBUG [ExecutorFilter] Exiting since queue is empty for /10.0.0.239:33204
      15:38:11,160 INFO [MinaFtpProtocolHandler] [/10.0.0.239:33204] RECEIVED: NLST
      15:38:11,161 DEBUG [ExecutorFilter] Launching thread for /10.0.0.239:33204
      15:38:11,161 INFO [MinaFtpProtocolHandler] [/10.0.0.239:33204] WRITE: 150 File status okay; about to open data connection.
      15:38:11,162 INFO [MinaFtpProtocolHandler] [/10.0.0.239:33204] SENT: 150 File status okay; about to open data connection.
      15:38:11,167 WARN [IODataConnectionFactory] FtpDataConnection.getDataSocket()
      java.lang.NullPointerException
      at java.net.Socket.<init>(Socket.java:358)
      at java.net.Socket.<init>(Socket.java:208)
      at org.apache.ftpserver.IODataConnectionFactory.createDataSocket(IODataConnectionFactory.java:261)
      at org.apache.ftpserver.IODataConnectionFactory.openConnection(IODataConnectionFactory.java:232)
      at org.apache.ftpserver.command.NLST.execute(NLST.java:81)
      at org.apache.ftpserver.listener.FtpProtocolHandler.service(FtpProtocolHandler.java:195)
      at org.apache.ftpserver.listener.FtpProtocolHandler.onRequestReceived(FtpProtocolHandler.java:122)
      at org.apache.ftpserver.listener.mina.MinaFtpProtocolHandler.messageReceived(MinaFtpProtocolHandler.java:106)
      at org.apache.mina.common.support.AbstractIoFilterChain$TailFilter.messageReceived(AbstractIoFilterChain.java:569)
      at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:298)
      at org.apache.mina.common.support.AbstractIoFilterChain.access$1200(AbstractIoFilterChain.java:53)
      at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:647)
      at org.apache.mina.filter.executor.ExecutorFilter.processEvent(ExecutorFilter.java:220)
      at org.apache.mina.filter.executor.ExecutorFilter$ProcessEventsRunnable.run(ExecutorFilter.java:266)
      at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
      at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
      at java.lang.Thread.run(Thread.java:595)
      15:38:11,174 DEBUG [NLST] Exception getting the output data stream
      java.lang.NullPointerException
      at java.net.Socket.<init>(Socket.java:358)
      at java.net.Socket.<init>(Socket.java:208)
      at org.apache.ftpserver.IODataConnectionFactory.createDataSocket(IODataConnectionFactory.java:261)
      at org.apache.ftpserver.IODataConnectionFactory.openConnection(IODataConnectionFactory.java:232)
      at org.apache.ftpserver.command.NLST.execute(NLST.java:81)
      at org.apache.ftpserver.listener.FtpProtocolHandler.service(FtpProtocolHandler.java:195)
      at org.apache.ftpserver.listener.FtpProtocolHandler.onRequestReceived(FtpProtocolHandler.java:122)
      at org.apache.ftpserver.listener.mina.MinaFtpProtocolHandler.messageReceived(MinaFtpProtocolHandler.java:106)
      at org.apache.mina.common.support.AbstractIoFilterChain$TailFilter.messageReceived(AbstractIoFilterChain.java:569)
      at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:298)
      at org.apache.mina.common.support.AbstractIoFilterChain.access$1200(AbstractIoFilterChain.java:53)
      at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:647)
      at org.apache.mina.filter.executor.ExecutorFilter.processEvent(ExecutorFilter.java:220)
      at org.apache.mina.filter.executor.ExecutorFilter$ProcessEventsRunnable.run(ExecutorFilter.java:266)
      at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
      at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
      at java.lang.Thread.run(Thread.java:595)
      15:38:11,175 INFO [MinaFtpProtocolHandler] [/10.0.0.239:33204] WRITE: 425 Can't open data connection.
      15:38:11,176 DEBUG [ExecutorFilter] Exiting since queue is empty for /10.0.0.239:33204
      15:38:11,176 INFO [MinaFtpProtocolHandler] [/10.0.0.239:33204] SENT: 425 Can't open data connection.
      15:38:11,177 DEBUG [ExecutorFilter] Launching thread for /10.0.0.239:33204
      15:38:11,177 DEBUG [ExecutorFilter] Exiting since queue is empty for /10.0.0.239:33204
      15:39:38,458 WARN [MinaFtpProtocolHandler] [/10.0.0.239:33204] EXCEPTION:
      org.apache.mina.filter.codec.ProtocolDecoderException: java.nio.charset.MalformedInputException: Input length = 1 (Hexdump: empty)
      at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:160)
      at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:298)
      at org.apache.mina.common.support.AbstractIoFilterChain.access$1200(AbstractIoFilterChain.java:53)
      at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:647)
      at org.apache.mina.common.support.AbstractIoFilterChain$HeadFilter.messageReceived(AbstractIoFilterChain.java:498)
      at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:298)
      at org.apache.mina.common.support.AbstractIoFilterChain.fireMessageReceived(AbstractIoFilterChain.java:292)
      at org.apache.mina.transport.socket.nio.SocketIoProcessor.read(SocketIoProcessor.java:253)
      at org.apache.mina.transport.socket.nio.SocketIoProcessor.process(SocketIoProcessor.java:223)
      at org.apache.mina.transport.socket.nio.SocketIoProcessor.access$500(SocketIoProcessor.java:44)
      at org.apache.mina.transport.socket.nio.SocketIoProcessor$Worker.run(SocketIoProcessor.java:524)
      at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:39)
      at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
      at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
      at java.lang.Thread.run(Thread.java:595)
      Caused by: java.nio.charset.MalformedInputException: Input length = 1
      at java.nio.charset.CoderResult.throwException(CoderResult.java:260)
      at org.apache.mina.common.ByteBuffer.getString(ByteBuffer.java:953)
      at org.apache.mina.filter.codec.textline.TextLineDecoder.decodeAuto(TextLineDecoder.java:180)
      at org.apache.mina.filter.codec.textline.TextLineDecoder.decode(TextLineDecoder.java:113)
      at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:153)
      ... 14 more

      Attachments

        1. apache-ftpserver-111-patch.txt
          1 kB
          Rico Neubauer

        Activity

          People

            niklas Niklas Therning
            riconeubauer Rico Neubauer
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            Dates

              Created:
              Updated:
              Resolved: