Mailman 3 December 2006 - Twisted

Re: [Twisted-Python] Re: Perspective Broker Anonymous access..
by exarkun＠divmod.com Dec. 19, 2006

Dec. 19, 2006

On 08:19 pm, cedepaula(a)yahoo.com.br wrote: >Jean-Paul Calderone <exarkun <at> divmod.com> writes: > >> >> You have to re-implement the login process to support anonymous users. >> >> PBClientFactory.login() cannot be used for this. >> >> Jean-Paul >> > >So, the examples given in >http://twistedmatrix.com/projects/core/documentation/howto/pb-cred.html (below) >doesnt works? > ># anonymous users share one Avatar, named users each get their own > def requestAvatar(self, avatarID, mind, *interfaces): > assert pb.IPerspective in interfaces > if avatarID == checkers.ANONYMOUS: > return pb.IPerspective, self.anonAvatar, lambda:None > else: > return pb.IPerspective, self.avatars[avatarID], lambda:None Yes, unfortunately. Without changing protocol-level code in PB, there is no way the first branch in that if/else is ever going to be executed. I'm not sure why the example bothers to cover this case; it seems misleading. > >I was looking at pb.py, portal.py and the way i understood, the whole chain >(login -> cbSendUsername -> remote login -> cb_Response -> remote respond) is >the responsible by the login process... if we send like credentials.Anonymous in >login(), all this chain needs to handle it... right? Yes, that is correct. Despite the number of steps involved, it's actually not very much work to adjust. > >Its a little strange why we cant have authenticated and anonymous users sharing >the same process since we can filter in the avatar given the permissions (like >example above). It's an unfortunate omission. Requests for PB logins using a different kind of credentials object are fairly common. > >Another question... is it interesting to twisted project to have this kind of >support? I mean, is it important to provide a way to this support in a patch to >the project or should I do modifications I need (if i learn how to) and keep >them to me? It would be a very welcome contribution. :) Take a look at these pages, if you haven't already seen them, for some guidelines on how to best contribute the changes, and feel free to ask if you have any other questions. Jean-Paul

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[Twisted-Python] Writing to a unix FIFO
by Phil Mayers Dec. 18, 2006

Dec. 18, 2006

Does anyone have a notion of what the easiest way of doing this is? I feel some combination of wrapping a consumer around a FileDescriptor ought to work, or something similar to the stdio support, but I can't quite reason it out. It is somewhat complicated by the weird behaviour of FIFOs depending on the state of the other end.

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[Twisted-Python] What deferred can I use to detect when a server or client is "running"
by Brian Granger Dec. 17, 2006

Dec. 17, 2006

Hi, i am writing some tests using trial and in my setUp methods I start various servers and clients using listenTCP/connectTCP. The problem I am having is finding a deferred that will fire when: 1. A server is actually listening. I want to use this deferred to trigger clients to connect... 2. A client has connected. I want to return this deferred from my setUp method so my tests won't actually run until the client has connected to the server. I have some hackish ways that I have been getting around this, but they seem a little fickle. What is the "standard" way of doing this in tests? Thanks Brian

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[Twisted-Python] twisted pyQT4 tutorial?
by twisted＠x11.cjb.net Dec. 17, 2006

Dec. 17, 2006

I am intrested in doing some stuff with pyQT4 and twisted, and have been successful in getting some things to work separately, but am not exactly sure how to get the reactor going in the QT4's event loop. This is the reactor I am trying to use. http://twistedmatrix.com/trac/attachment/ticket/1770/qt4reactor.py Is there any kind of tutorial for this, or example code from a simple runnable application? -Brian

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[Twisted-Python] Weekly Bug Summary
by exarkun＠twistedmatrix.com Dec. 17, 2006

Dec. 17, 2006

Bug summary ______________________ Summary for 2006-12-10 through 2006-12-17 Bugs opened: 12 Bugs closed: 6 Total open bugs: 797 (+6) |== Type Changes |== Priority Changes |== Component Changes |Defect: +6 |Highest: +0 |Core: +5 |Enhancement: +0 |High: +3 |Ftp: -1 |Task: +1 |Normal: +3 |Mail: -1 |Low: +1 |Names: +1 |Pb: +1 |Trial: +1 |Web: +1 New / Reopened Bugs ______________________ ===== Highest ===== [#2291] Add --reactor to zsh completions for twistd and trial (opened by teratorn) defect core http://twistedmatrix.com/trac/ticket/2291 [#2297] Make rebuild.latestClass more compliant with new style classes (opened by therve) defect core http://twistedmatrix.com/trac/ticket/2297 [#2298] microdom assigns incorrect parent values to top-level nodes in malformed HTML strings (opened by jml) (CLOSED, fixed) enhancement web http://twistedmatrix.com/trac/ticket/2298 [#2300] Remove trailing whitespace from Python files (opened by jml) task core http://twistedmatrix.com/trac/ticket/2300 ===== High ===== [#2292] AMP error propagation does not work on subclasses (opened by htj) defect core http://twistedmatrix.com/trac/ticket/2292 [#2299] twisted.spread.sturdy doesn't work at all, not even a little (opened by exarkun) defect pb http://twistedmatrix.com/trac/ticket/2299 [#2292] AMP error propagation does not work on subclasses (opened by htj) defect core http://twistedmatrix.com/trac/ticket/2292 ===== Normal ===== [#2290] nameservers resolved in wrong order (opened by ilia) defect names http://twistedmatrix.com/trac/ticket/2290 [#2293] Integrate PyOpenSSL patches and do a PyOpenSSL release (opened by exarkun) enhancement core http://twistedmatrix.com/trac/ticket/2293 [#2295] distrib listenUNIX should use the usePID=1 lock system (opened by itamarst) defect web http://twistedmatrix.com/trac/ticket/2295 [#2296] twisted.web2.stream.FileStream creates an instance of an undefined class in it's sendfile "support" (opened by dreid) defect core http://twistedmatrix.com/trac/ticket/2296 ===== Low ===== [#2294] Fixture for testing the validity of of the contents of a module's __all__ attribute (opened by exarkun) enhancement trial http://twistedmatrix.com/trac/ticket/2294 Closed Bugs ______________________ ===== Highest ===== [#428 ] Update and re-instate FTPClient tests (opened by amberite, closed by exarkun, fixed) defect ftp http://twistedmatrix.com/trac/ticket/428 [#992 ] session.getComponent doesn't work with 'default' keyword arg (opened by justinj, closed by exarkun, fixed) defect core http://twistedmatrix.com/trac/ticket/992 [#815 ] t.internet.process.Process should check for valid arguments (opened by marienz, closed by exarkun, fixed) enhancement core http://twistedmatrix.com/trac/ticket/815 [#2298] microdom assigns incorrect parent values to top-level nodes in malformed HTML strings (opened by jml, closed by jml, fixed) enhancement web http://twistedmatrix.com/trac/ticket/2298 ===== High ===== [#2292] AMP error propagation does not work on subclasses (opened by htj, closed by glyph, ) defect core http://twistedmatrix.com/trac/ticket/2292 ===== Normal ===== [#2250] twisted.mail.pop3.__all__ lacks a comma (opened by mwh, closed by glyph, fixed) enhancement mail http://twistedmatrix.com/trac/ticket/2250

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[Twisted-Python] Trac wiki notification
by Eric Mangold Dec. 16, 2006

Dec. 16, 2006

Here's a plugin that lets you subscribe to wiki page changes. This functionality isn't available in normal Trac yet. http://wikinotification.ufsoft.org/ I was hoping an admin could set this up (if it doesn't look like it will break everything :) -- Eric Mangold Twisted/Win32 Maintainer

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[Twisted-Python] Shtoom
by Manlio Perillo Dec. 15, 2006

Dec. 15, 2006

Is Shtoom still maintained? Thanks and regards Manlio Perillo

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[Twisted-Python] Using D-Bus with Twisted
by Gavrie Philipson [Twisted] Dec. 15, 2006

Dec. 15, 2006

Hi, I'm about to start a project which involves adding D-Bus support to an existing Python application that is based on Twisted. The latest dbus-python versions include some tantalizing references to planned support for integrating D-Bus into the Twisted mainloop. However, I understand that this is not ready yet...? What would be the easiest way to integrate D-Bus and Twisted right now? I know that Twisted can use the GLib event loop, but will this work out of the box? I found some references to doing this with older versions of the dbus-python API, but nothing recent. Does anyone have examples available that use the current API? Please note that I asked on the D-Bus mailing list, and got the advice to ask here; see: http://lists.freedesktop.org/archives/dbus/2006-December/006630.html Thanks, -- Gavrie Philipson

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[Twisted-Python] NAPTR and some dns.py import issue
by Andy Leszczynski Dec. 14, 2006

Dec. 14, 2006

Hi, There was a recent discussion: FWIW - I have a patch to dns.py with NAPTR implemented but it is a very hackish solution: I mean it serves very specific application and works fine and basis are there. I also faced the issue with the twisted/names/dns.py - specifically with "from twisted.python import components". Since I did not want to overwrite the twisted/names/dns.py, I just took it, renamed and applied NAPTR patch, saved in my app directory and import it now under new name. Surprisingly it did want to import so in order to fix the problem I had to replace "from twisted.python import components" with "from zope.interface import interface" and change: class IRecord(components.Interface): class IEncodable(components.Interface): to: class IRecord(interface.Interface): class IEncodable(interface.Interface): respectively. This is what I have - I would be interested in Twisted supporting NAPTR - let me know if I can participate. -- Best regards, alf When all you have is XML, every problem looks like a markup :-).

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[Twisted-Python] twisted.web.proxy.ReverseProxyResource forgets to quote path?
by Magnus Hult Dec. 13, 2006

Dec. 13, 2006

Hello, In a program like this from twisted.web import server, proxy, resource from twisted.internet import reactor from twisted.application import service, strports site = server.Site(proxy.ReverseProxyResource('www.example.com', 80, '/path')) application = service.Application("accesspoint") s = strports.service('tcp:8060', site) s.setServiceParent(application) visiting / on port 8060 leads to www.example.com:80/path as expected. /test returns the contents of www.example.com:80/path/test as expected, but going to, for example, /test%20test returns a 400 bad request. It seems like t.w.proxy.ReverseProxyResource does not quote its path. When urllib.quote:ing the rest parameter sent to ProxyClientFactory in ReverseProxyResource.render, it suddenly works. (I'm using python-twisted-web from Debian unstable, but it's the same in trunk.) Am I doing something wrong here or is this a bug? Regards, Magnus

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