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From Toli Kuznets <tkuzn...@marinsoftware.com>
Subject Re: Is there a way to access the FtpSession.lastReply in the handleOnClose() call?
Date Tue, 01 Mar 2011 18:32:15 GMT
David,

I ended up filing an RFE for this at
https://issues.apache.org/jira/browse/FTPSERVER-401 so that it can be
tracked easier.

>>>
>>> 2011/2/12 Toli Kuznets <tkuznets@marinsoftware.com>:
>>>> Hi,
>>>>
>>>> I have a custom FtpLet and I wan to kick off a job on file upload, so
>>>> i override the handleOnClose() call.
>>>>
>>>> I'm running into a situation where when my users use SSIS (scary
>>>> Microsoft product) to send files over FTP, they are not able to
>>>> establish a data connection to my server (separate problem), there's
>>>> an internal exception in STOR.execute() but I still get a callback in
>>>> onHandleClose()
>>>>
>>>> However, when I get the callback, it's impossible for me to tell the
>>>> difference between a "successful" upload or a callback after an
>>>> exception when there was no physical file placed on disk.
>>>>
>>>> Looking in the debugger, I notice that the incoming FtpSession is
>>>> actually a DefaultFtpSession that has an FtpIoSession that has a
>>>> getLatReply() method that can return me something useful
>>>> (REPLY_425_CANT_OPEN_DATA_CONNECTION in my case).
>>>> However, getting to lastReply is not exposed.
>>>>
>>>> is there a better way to tell if handleOnClose() is being called on
>>>> success or failure? How can i tell those 2 situations apart?
>>>>
>>>> My server is setup with all defaults for connections - in this case,
>>>> the connection is coming in as ACTIVE and for some reason i get an
>>>> exception when opening data connection, so i want to catch that case
>>>> and not kick of an event in handleOnClose()
>>>>
>>>> This is on FtpServer-1.0.5, and the relevant stacktrace from the call
>>>> to handleOnClose() after the failed open of data connection is:
>>>>        at com.marin.plugin.ftpserver.FileUploadNotifierFtplet.onUploadEnd(FileUploadNotifierFtplet.java:70)
>>>>        at org.apache.ftpserver.ftplet.DefaultFtplet.afterCommand(DefaultFtplet.java:89)
>>>>        at org.apache.ftpserver.ftpletcontainer.impl.DefaultFtpletContainer.afterCommand(DefaultFtpletContainer.java:144)
>>>>        at org.apache.ftpserver.impl.DefaultFtpHandler.messageReceived(DefaultFtpHandler.java:220)
>>>>
>>>> The "unable to open data connection" is below if it helps:
>>>> 11 Feb 2011 16:15:30,977 DEBUG [pool-5-thread-1]
>>>> nativefs.impl.NativeFtpFile (NativeFtpFile.java:212) - Checking if
>>>> file exists
>>>> 11 Feb 2011 16:15:30,977 DEBUG [pool-5-thread-1]
>>>> nativefs.impl.NativeFtpFile (NativeFtpFile.java:218) - Authorized
>>>> 11 Feb 2011 16:16:45,931 DEBUG [pool-5-thread-1] command.impl.STOR
>>>> (STOR.java:134) - Exception getting the input data stream
>>>> java.net.ConnectException: Operation timed out
>>>>        at java.net.PlainSocketImpl.socketConnect(Native Method)
>>>>        at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
>>>>        at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
>>>>        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
>>>>        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:432)
>>>>        at java.net.Socket.connect(Socket.java:529)
>>>>        at java.net.Socket.connect(Socket.java:478)
>>>>        at org.apache.ftpserver.impl.IODataConnectionFactory.createDataSocket(IODataConnectionFactory.java:314)
>>>>        at org.apache.ftpserver.impl.IODataConnectionFactory.openConnection(IODataConnectionFactory.java:259)
>>>>        at org.apache.ftpserver.command.impl.STOR.execute(STOR.java:132)
>>>>        at org.apache.ftpserver.impl.DefaultFtpHandler.messageReceived(DefaultFtpHandler.java:210)
>>>>
>>>> This is very reproducible, so i can provide any other information that
>>>> may be helpful.
>>>>
>>>> I'm seeing similar behaviour directly from Windows FTP command-line shell.
>>>>
>>>> all other use cases (from Mac, from Windows FileZilla, etc work just fine)
>>>>
>>>> thanks!
>>>>
>>>
>>
>

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