[jira] Issue Comment Edited: (NET-274) Commands issued after CCC command fails in Commons Net 2.0

["Chuck Batka (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NET-274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12753998#action_12753998 ] 

Chuck Batka edited comment on NET-274 at 9/10/09 9:48 PM:
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I was having a sporadic issue with the control socket closing soon after switching back to plainSocket  with CCC. A short series of commands or operations could usually finish successfully but anything taking longer than a few seconds would end with a control socket closure.

Moving the sslNegotiation() local variable "SSLSocket socket" to be an instance variable solved the issue of the layered secure sockets' disposal tearing down the plainSocket.

Thank you.


.
.
.
    /** The FTPS {@link TrustManager} implementation. */
    private TrustManager trustManager = new FTPSTrustManager();

    /** The {@link KeyManager} */
    private KeyManager keyManager;

    private SSLSocket socket;
.
.
.


      was (Author: cb_pa):
    I was having a sporadic issue with the control socket closing soon after switching back to plainSocket  with CCC. A short series of commands or operations could usually finish successfully but anything taking longer than a few seconds would end with a control socket closure.

Moving the sslNegotiation() local variable "SSLSocket socket" to be an instance variable solved the issue of the layered secure sockets' disposal tearing down the plainSocket.

Thank you.
  
> Commands issued after CCC command fails in Commons Net 2.0
> ----------------------------------------------------------
>
>                 Key: NET-274
>                 URL: https://issues.apache.org/jira/browse/NET-274
>             Project: Commons Net
>          Issue Type: Bug
>    Affects Versions: 2.0
>         Environment: Windows XP
>            Reporter: Srikanth KM
>             Fix For: 2.1
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> When the FTP Client communicates with FTP Server in Explicit SSL mode, after the exchange of data channel security commands, the Client issues the CCC command (Clear Command Channel). A reply code of 200 is received for the CCC command. However, the subsequent commands issued fails with the error ::
> org.apache.commons.net.ftp.FTPConnectionClosedException: Connection closed without indication.
> This is occuring because after issuing the CCC Command ,(in sendCommand of FTPSClient)  the socket is switched to plane socket whereas the Input and output streams of the socket _controlInput_ and _controlOutput_ still point to the older secure socket.
> This issue can be resolved by adding the following lines in the sendCommand () of FTPSClient after switching thesocket to plainSocket
> _socket_ = planeSocket;
>         _controlInput_ = new BufferedReader(new InputStreamReader( _socket_ .getInputStream(), getControlEncoding()));
>         _controlOutput_ = new BufferedWriter(new OutputStreamWriter( _socket_.getOutputStream(), getControlEncoding()));
> Thanks

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