Mailman 3 October 2005 - Twisted

RE: [Twisted-Python] FTP server with credentials
by Mayne, Peter Oct. 13, 2005

Oct. 13, 2005

> [mailto:twisted-python-bounces@twistedmatrix.com] On Behalf > Of Itamar Shtull-Trauring > > You'll want to look at Twisted 2.1, it has a much improved FTP server > backend (though the authentication part shouldn't be affected, IIRC). Using 2.1 definitely makes things easier, I'm nearly there. I just have to figure out how to return different status values for a STOR. One thing I've noticed is when I 'BYE' from the FTP client, I don't get a '221' line from the Twisted FTP … [View More]

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[Twisted-Python] correct way to disconnect a pb connection?
by Tobias Sargeant Oct. 13, 2005

Oct. 13, 2005

Hi, Is there a correct way to disconnect a pb client? all the examples seem to call reacctor.stop() which is not what I want. Calling broker.transport.loseConnection() seems clean on the client side, but on the server side I see lots of these: 2005/10/13 16:47 EST [ControldServerConnection,0,192.168.34.218] connection lost <Q.controld.controld.ControldServerConnection instance at 0x102cd78> [Failure instance: Traceback (failure with no frames): twisted.internet.error.ConnectionLost: … [View More]

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[Twisted-Python] Generating API documentation
by Mayne, Peter Oct. 13, 2005

Oct. 13, 2005

I've downloaded and installed Twisted 2.1 on Windows XP. I work off-line some of the time, so I'd like a local copy of the API documentation, but I don't want to wget the website. How do I generate the API documentation locally? (Lore seemed to be a part of the 2.0.1 Windows install, but not the 2.1.0 bz2.) Thanks. PJDM -- Peter Mayne Technology Consultant Hewlett-Packard Australia 7-11 Barry Drive, Turner, ACT, 2612

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RE: [Twisted-Python] FTP server with credentials
by Mayne, Peter Oct. 13, 2005

Oct. 13, 2005

I'm doing that right now (although I went with 2.0.1 because of the convenient Windows installer). Does 2.1 make the FTP server any easier? :-) PJDM -- Peter Mayne Technology Consultant Hewlett-Packard Australia 7-11 Barry Drive, Turner, ACT, 2612 > -----Original Message----- > From: twisted-python-bounces(a)twistedmatrix.com > [mailto:twisted-python-bounces@twistedmatrix.com] On Behalf > Of Itamar Shtull-Trauring > Sent: Thursday, 13 October 2005 10:01 AM > To: … [View More]

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[Twisted-Python] FTP server with credentials
by Mayne, Peter Oct. 13, 2005

Oct. 13, 2005

I'm trying to write a simple FTP server that a client can connect and authenticate to, then upload a file, which the server buffers in memory and processes, and then returns a status result to the client depending on the result of the processing. (Twisted 2.0.1, Python 2.4.1, Windws XP SP2) So far I've done this: <code> import sys from twisted.cred import checkers, portal from twisted.internet import reactor, protocol from twisted.protocols import ftp from twisted.python import … [View More]components, log class IProtocolUser(components.Interface): def getPrivileges(self): """Return a list of privileges this user has.""" def logout(self): """Cleanup per-login resources allocated to this avatar""" class RegularUser: __implements__ = (IProtocolUser,) def getPrivileges(self): return [1, 2, 3, 5, 6] def logout(self): print "Cleaning up regular user resources" class Realm: __implements__ = portal.IRealm def requestAvatar(self, avatarId, mind, *interfaces): if ftp.IFTPShell in interfaces: av = RegularUser() return ftp.IFTPShell, av, av.logout else: raise NotImplementedError("Only IFTPShell interface is supported by this realm") class MyFtpServer(ftp.FTP): '''My custom FTP server.''' def __init__(self, *args, **kw): super(ftp.FTP, self).__init__(*args, **kw) self.blockingCommands.remove('PORT') print 'Removed PORT to allow non-PASV' def dataReceived(self, data): 'As soon as any data is received, send it to stdout for debugging.' sys.stdout.write('\n **[%s]\n' % data) self.transport.write(data) def main(): r = Realm() p = portal.Portal(r) c = checkers.InMemoryUsernamePasswordDatabaseDontUse() c.addUser("u", "p") p.registerChecker(c) p.registerChecker(checkers.AllowAnonymousAccess()) #log.startLogging(sys.stdout) factory = ftp.FTPFactory(MyFtpServer()) factory.portal = p reactor.listenTCP(2121, factory) reactor.run() if __name__ == '__main__': main() </code> I can connect and authenticate (using the Windows comman line FTP client running on the same system), but when I "put myfile.txt" on the client, the server produces the following: <output> C:\>mockftp.py Removed PORT to allow non-PASV C:\opt\Python24\lib\site-packages\twisted\protocols\ftp.py:625: DeprecationWarni ng: IPv4Address.__getitem__ is deprecated. Use attributes instead. phost = self.transport.getPeer()[1] Traceback (most recent call last): Failure: exceptions.IndexError: tuple index out of range Traceback (most recent call last): File "C:\opt\Python24\lib\site-packages\twisted\internet\selectreactor.py", li ne 133, in doSelect _logrun(selectable, _drdw, selectable, method, dict) File "C:\opt\Python24\Lib\site-packages\twisted\python\log.py", line 56, in ca llWithLogger return callWithContext({"system": lp}, func, *args, **kw) File "C:\opt\Python24\Lib\site-packages\twisted\python\log.py", line 41, in ca llWithContext return context.call({ILogContext: newCtx}, func, *args, **kw) File "C:\opt\Python24\Lib\site-packages\twisted\python\context.py", line 31, i n callWithContext return func(*args,**kw) --- <exception caught here> --- File "C:\opt\Python24\lib\site-packages\twisted\internet\selectreactor.py", li ne 139, in _doReadOrWrite why = getattr(selectable, method)() File "C:\opt\Python24\Lib\site-packages\twisted\internet\tcp.py", line 351, in doRead return self.protocol.dataReceived(data) File "C:\opt\Python24\Lib\site-packages\twisted\protocols\basic.py", line 221, in dataReceived why = self.lineReceived(line) File "C:\opt\Python24\lib\site-packages\twisted\protocols\ftp.py", line 550, i n lineReceived self.processCommand(*cmdAndArgs) File "C:\opt\Python24\lib\site-packages\twisted\protocols\ftp.py", line 608, i n processCommand return method(*args) File "C:\opt\Python24\lib\site-packages\twisted\protocols\ftp.py", line 940, i n ftp_PORT self._createDTP() File "C:\opt\Python24\lib\site-packages\twisted\protocols\ftp.py", line 632, i n _createDTP self.dtpPort = reactor.connectTCP(self.dtpHostPort[1], self.dtpHostPort[2]) exceptions.IndexError: tuple index out of range Cleaning up regular user resources </output> At this point I'm lost. What am I doing wrong? Thanks. PJDM -- Peter Mayne Technology Consultant Hewlett-Packard Australia 7-11 Barry Drive, Turner, ACT, 2612 [View Less]

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RE: [Twisted-Python] problem enhancing conch sample
by Henning.Ramm＠mediapro-gmbh.de Oct. 12, 2005

Oct. 12, 2005

>Each channel can only be only command, executed >one time. If you need to run a second command, you need to open a new >channel. That's what I needed to know. The tutorial doesn't explain this (or I didn't understand it). Thank you! Best regards, Henning Hraban Ramm Südkurier Medienhaus / MediaPro Support/Admin/Development Dept.

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RE: [Twisted-Python] Twisted and SVN
by Grant McDonald Oct. 12, 2005

Oct. 12, 2005

Glyph, Thanks for taking the time to provide such a detailed response. SVN always looked better on paper but it is good to read the real world experiences/opinions of a developer on a large project that is actually using it! :) Thanks again, Grant M.

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[Twisted-Python] Re: [Twisted-commits] r14683 - Make the toMainThread Queue unlimited in size, instead of max size 1.
by James Y Knight Oct. 12, 2005

Oct. 12, 2005

On Oct 7, 2005, at 11:05 AM, Stephen Thorne wrote: > Make the toMainThread Queue unlimited in size, instead of max size 1. > This can cause deadlocks. Why does it cause deadlocks? That queue should be the only lock the tsr thread blocks upon, besides the GIL. Making the queue infinite means the tsr thread could sit there generating large amounts of events before the main thread gets around to reading any of them, getting in a state of continuous backlog and badness. From what I … [View More]

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[Twisted-Python] Twisted and SVN
by Grant McDonald Oct. 12, 2005

Oct. 12, 2005

Hi All, I know this isn't really the forum for talking about subversion, but Twisted as we all know is a rather large distributed development effort and it uses SVN. There is currently a debate going on in my company about the benefits of subversion over cvs and if I may I'd like to tap your knowledge about the pitfalls and benefit of subversion use (if any) that you've come across in your usage of the product. Do you see it as a far better solution than CVS? Has twisted always used SVN or … [View More]

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[Twisted-Python] Weekly Bug Summary
by James Y Knight Oct. 12, 2005

Oct. 12, 2005

Bug summary ______________________ Since 2005-10-05 06:00:02.400000: Bugs opened: 27 Bugs closed: 23 Total open bugs: 475 (+4) Urgent: 5 (-3) Bug: 229 (+5) Feature: 164 (+3) Wish: 77 (-1) New / Reopened Bugs ______________________ ==== Urgent ==== [WEB, WIN32] twisted.web2 problems on Windows. (yesterday) CLOSED http://twistedmatrix.com/bugs/issue1270 opened by mkerrin [BACKPORT, CORE, TRIAL] trial won't run nevow's unit tests (yesterday) CLOSED http://… [View More]

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