[issue25278] Unexpected socket exception on SFTP 'STOR' command

[Lars Schellhas]

Lars Schellhas  added the comment:

I am pretty sure that it is connected to issue 19500. And somehow that issue 
still isn't resolved although there are already solutions provided.

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[issue25278] Unexpected socket exception on SFTP 'STOR' command

[R. David Murray]

R. David Murray added the comment:

I wonder if this has any relationship to issue 19500.

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[issue25278] Unexpected socket exception on SFTP 'STOR' command

[Eric V. Smith]

Eric V. Smith added the comment:

You'll need to reproduce this in a smaller piece of code that demonstrates the 
problem. The code you've included is very large, and imports libraries we don't 
have access to.

Otherwise, we can't reproduce it and we can't help.

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[issue25278] Unexpected socket exception on SFTP 'STOR' command

[Blanquier]

Blanquier added the comment:

Hi,

I send you the file as attached document.
I use the test_sftp_upload() as entry point.

Le 30/09/2015 16:43, R. David Murray a écrit :
> R. David Murray added the comment:
>
> As Eric said, we really can't diagnose this unless you show is your python 
> code (as code, not as a partial screenshot).
>
> --
>
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Added file: http://bugs.python.org/file40630/gui_ftp.py

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___# -*- coding: iso-8859-1 -*-
# ---
__file__ = "gui_ftp.py"
__doc__= "FTP functions for ul/downloading one or several server in parallele 
with multiple connections."
__author__ = "Philippe Blanquier"
__version__ = "v0.1"
__date__ = "24/06/2011"
__copyright__ = "Alcatel-Lucent"
__contact__ = "philippe.blanqu...@alcatel-lucent.com"
# ---

# Python include
import os,sys,ftplib,glob,time,threading,socket,copy

# Private include
import gui_common,gui_scenario_manager,gui_user

###  ###
### Private data ###
###  ###
_ftps_certificate_file_name = 
"C:"+os.sep+"Nemo_Pyc"+os.sep+"sftp_certificate.crt"  #: FTPS certificate for 
labo servers

_ftp_error_tag = "FTP"
_ftp_block_size = 64*gui_common.kilo_unit #: Maximum chunk size to read/write 
on the low-level socket object created to do the actual transfer
_ftp_repeat_nb = 10 #: Maximal command repeatition number before saying 'KO'...
_ftp_repeat_waiting_delay = 30.0 #: Delay between 2 repetition when a failure 
is detected

_upload_cmd   = "Upload"
_download_cmd = "Download"

_file_size_tag = "File size"

_ftp_posix_separator = '/' #: Normalized FTP directory separator ( UNIX POSIX !)
_ftp_dir_size = -1 #: Dummy FTP directory size

_ftp_create_dir_mutex = gui_common.nice_mutex( this_name = "FTP_Dir_Mutex") #: 
Internal directory creation protection

# see: http://en.wikipedia.org/wiki/List_of_FTP_server_return_codes
#
# FTP server return codes always have three digits, and each digit has a 
special meaning.
#
# The first digit denotes whether the response is good, bad or incomplete:
#   1xx Positive Preliminary reply
#   2xx Positive Completion reply
#   3xx Positive Intermediate reply
#   4xx Transient Negative Completion reply
#   5xx Permanent Negative Completion reply
#   6xx Protected reply
# The second digit is a grouping digit and encodes the following information:
#   x0x Syntax
#   x1x Information
#   x2x Connections
#   x3x Authentication and accounting
#   x4x Unspecified as of RFC 959.
#   x5x File system
### The requested action is being taken. Expect a reply before proceeding with 
a new command.
# 100   Series: The requested action is being initiated, expect another reply 
before proceeding with a new command.
# 110   Restart marker replay . In this case, the text is exact and not left to 
the particular implementation;
#   it must read: MARK  =  where  is User-process data stream 
marker, and  server's equivalent marker (note the spaces between markers 
and "=").
# 120   Service ready in nnn minutes.
# 125   Data connection already open; transfer starting.
# 150   File status okay; about to open data connection.
### The requested action has been successfully completed.
# 200   Command okay.
# 202   Command not implemented, superfluous at this site.
# 211   System status, or system help reply.
# 212   Directory status.
# 213   File status.
# 214   Help message.On how to use the server or the meaning of a particular 
non-standard command. This reply is useful only to the human user.
# 215   NAME system type. Where NAME is an official system name from the 
registry kept by IANA.
# 220   Service ready for new user.
# 221   Service closing control connection.
# 225   Data connection open; no transfer in progress.
# 226   Closing data connection. Requested file action successful (for example, 
file transfer or file abort).
# 227   Entering Passive Mode (h1,h2,h3,h4,p1,p2).
# 228   Entering Long Passive Mode (long address, port).
# 229   Entering Extended Passive Mode (|||port|).
# 230   User logged in, proceed. Logged out if appropriate.
# 231   User logged out; service terminated.
# 232   Logout command noted, will complete when transfer done.
# 250   Requested file action okay, completed.
# 257   "PATHNAME" created.
### The command has been accepted, but the requested action is being held 
pending receipt of further information.
# 331   User name okay, need password.
# 332   Need account for login.
# 350   Requested file action pending further information

[issue25278] Unexpected socket exception on SFTP 'STOR' command

[Blanquier]

New submission from Blanquier:

With Filezilla Server 0.9.53, SFTP activated (force SSL on login, allow 
explicit FTP over TLS). From the FTP client point of view: when I use 
ftp_id.storbinary( 'STOR file_name'...), a socket.error exception arrive 
sometime. It's a socket.error exception and the errno record value is 0 (zero). 
The full message is b'[Errno 0] Error'. If I want to obtain the real server 
answer, I MUST call ftp_id.getresp().
It looks like a desynchronisation between the command and the answer.

Could you correct it please ?

Best regards.

--
components: Library (Lib)
messages: 251933
nosy: blanquier
priority: normal
severity: normal
status: open
title: Unexpected socket exception on SFTP 'STOR' command
type: behavior
versions: Python 2.7

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[issue25278] Unexpected socket exception on SFTP 'STOR' command

[R. David Murray]

R. David Murray added the comment:

Does this have anything to do with python itself and its standard library?  
From your description this sounds like a problem with filezilla and should be 
reported to them.

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nosy: +r.david.murray
resolution:  -> third party
stage:  -> resolved
status: open -> pending

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[issue25278] Unexpected socket exception on SFTP 'STOR' command

[R. David Murray]

R. David Murray added the comment:

(Note: issue 25278 with a small amount of additional info closed as a duplicate 
of this one).

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status: pending -> open

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[issue25278] Unexpected socket exception on SFTP 'STOR' command

[Eric V. Smith]

Eric V. Smith added the comment:

>From the info in issue 25279, I'd say it's an error in your code.

But to make sure it's not an error in the stdlib, can you show us your code? 
Without that, it's not possible to diagnose this any further.

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status: pending -> open

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[issue25278] Unexpected socket exception on SFTP 'STOR' command

[Eric V. Smith]

Changes by Eric V. Smith :


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status: open -> pending

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[issue25278] Unexpected socket exception on SFTP 'STOR' command

[R. David Murray]

Changes by R. David Murray :


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status: open -> pending

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[issue25278] Unexpected socket exception on SFTP 'STOR' command

[R. David Murray]

R. David Murray added the comment:

As Eric said, we really can't diagnose this unless you show is your python code 
(as code, not as a partial screenshot).

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