Re: [Zope] FTP server problem

2009-03-25 Thread Dieter Maurer
Gareth Allen wrote at 2009-3-23 12:27 +0200:
>I'm experiencing a strange problem. I've enabled FTP access to my Zope 
>instance, but when I try and login it throws an exception:
>
>2009-03-23T11:14:42 INFO ZServer Successful login.
>--
>2009-03-23T11:15:07 ERROR ZServer uncaptured python exception, closing 
>channel 0x2a9c0ecd40> (exceptions.AttributeError:'NoneType' object has no 
>attribute '_fileno' 

Looks like the FTP server implementation is broken.

>[/home/zope/Python-2.4.4/lib/python2.4/asyncore.py|read|69] 
>[/home/zope/Python-2.4.4/lib/python2.4/asyncore.py|handle_read_event|391] 
>[/home/zope/Python-2.4.4/lib/python2.4/asynchat.py|handle_read|89] 
>[/home/zope/Python-2.4.4/lib/python2.4/asyncore.py|recv|347] 
>[/home/zope/Python-2.4.4/lib/python2.4/asynchat.py|handle_close|156] 
>[/home/zope/instances/www.emss.co.za/parts/zope2/lib/python/ZServer/medusa/ftp_server.py|close|181]
> 
>[/home/zope/instances/www.emss.co.za/parts/zope2/lib/python/ZServer/medusa/ftp_server.py|close|906]
> 
>[/home/zope/Python-2.4.4/lib/python2.4/asyncore.py|close|360] 
>[/home/zope/Python-2.4.4/lib/python2.4/asyncore.py|del_channel|248] 
>[/home/zope/Python-2.4.4/lib/python2.4/asyncore.py|__getattr__|366])

The problem is probably in "...ZServer/medusa/ftp_server.py|close".
I expect that the order of things is not right or that something redundant
is done.

A ZServer puts a channel object into 'asyncore's service map.
Each element in this map must have a 'fileno' method that tells
'asyncore' which file number is associated.

The exception above happens during closing the channel.
"ftp_server.close" probably calls the channel's 'close' which
calls 'del_channel' which accesses an object that meanwhile in "None"
while it is still expected to be an object with a '_fileno' attribute.



-- 
Dieter
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[Zope] FTP server problem

2009-03-23 Thread Gareth Allen
Hello,

I'm experiencing a strange problem. I've enabled FTP access to my Zope 
instance, but when I try and login it throws an exception:

2009-03-23T11:14:42 INFO ZServer Successful login.
--
2009-03-23T11:15:07 ERROR ZServer uncaptured python exception, closing 
channel  (exceptions.AttributeError:'NoneType' object has no 
attribute '_fileno' 
[/home/zope/Python-2.4.4/lib/python2.4/asyncore.py|read|69] 
[/home/zope/Python-2.4.4/lib/python2.4/asyncore.py|handle_read_event|391] 
[/home/zope/Python-2.4.4/lib/python2.4/asynchat.py|handle_read|89] 
[/home/zope/Python-2.4.4/lib/python2.4/asyncore.py|recv|347] 
[/home/zope/Python-2.4.4/lib/python2.4/asynchat.py|handle_close|156] 
[/home/zope/instances/www.emss.co.za/parts/zope2/lib/python/ZServer/medusa/ftp_server.py|close|181]
 
[/home/zope/instances/www.emss.co.za/parts/zope2/lib/python/ZServer/medusa/ftp_server.py|close|906]
 
[/home/zope/Python-2.4.4/lib/python2.4/asyncore.py|close|360] 
[/home/zope/Python-2.4.4/lib/python2.4/asyncore.py|del_channel|248] 
[/home/zope/Python-2.4.4/lib/python2.4/asyncore.py|__getattr__|366])

I thought it may be a Plone permissions problem as I was using a Plone 
user account, but even as the Zope admin user it throws the above error. 
Passive mode throws the exception. Active mode doesn't throw an error, 
but doesn't show a directory listing either.

Zope version: Zope 2.10.6-final
OS: Debian Sarge
FTP clients used: FileZilla, standard Linux FTP client and Firefox (as a 
last resort).

Regards,
Gareth Allen

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