Mailman 3 July 2003 - Twisted

[Twisted-Python] Connector Inconsistency
by Dave Smith July 21, 2003

July 21, 2003

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Greetings, In talking with Itamar, the question came up of how to correctly shutdown a Connector. For example: c = reactor.connectTCP(host, port, factory) c.loseConnection() # ?! # or c.stopConnecting() # ?! It is not codified anywhere that "loseConnection" will shutdown the connection, even if the connection is pending. As it stands now, you could call c.stopConnecting() or c.loseConnection(). The "correct" one to call is impossible to … [View More]

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[Twisted-Python] Re: [Twisted-commits] callWhenRunning interface and implementation
by Andrew Bennetts July 21, 2003

July 21, 2003

On Mon, Jul 21, 2003 at 05:56:54PM -0500, davep CVS wrote: > Modified files: > Twisted/ChangeLog 1.429 1.430 > Twisted/twisted/internet/base.py 1.58 1.59 > Twisted/twisted/internet/interfaces.py 1.88 1.89 > > Log message: > callWhenRunning interface and implementation [...] > +++ Twisted/twisted/internet/interfaces.py Mon Jul 21 17:56:22 2003 [...] > @@ -589,6 +589,23 @@ > """Removes a trigger added with addSystemEventTrigger. > > @param … [View More]

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[Twisted-Python] getObjectAtSSL: Exception
by Ruslan Spivak July 21, 2003

July 21, 2003

Hello! Here is the simple server: from twisted.spread import pb from twisted.internet import app, reactor from OpenSSL import SSL class ServerContextFactory: def getContext(self): """Create an SSL context. This is a sample implementation that loads a certificate from a file called 'server.pem'.""" ctx = SSL.Context(SSL.SSLv23_METHOD) ctx.use_certificate_file('server.pem') ctx.use_privatekey_file('server.pem') return ctx class … [View More]Server(pb.Root): def __init__(self): self.client = None def checkpoint(self): self.client.callRemote("printClientMsg", "Hello from Server.checkpoint") reactor.callLater(2, self.checkpoint) def remote_printServerMsg(self, client, msg): print "Server got: %s" % msg self.client = client client.callRemote("printClientMsg", "Hello from Server.printServerMsg") reactor.callLater(2, self.checkpoint) if __name__ == "__main__": appl = app.Application("pbtest") appl.listenSSL(33333, pb.BrokerFactory(Server()), ServerContextFactory()) appl.run() When i try to run pbclient.py: from twisted.spread import pb from twisted.internet import reactor class ClientCall(pb.Referenceable): def remote_printClientMsg(self, msg): print "Client: %s" % msg def got_obj(obj, c): obj.callRemote("printServerMsg", c, "Hello from Client") c = ClientCall() def1 = pb.getObjectAtSSL("localhost", 33333, 30) def1.addCallback(got_obj, c) reactor.run() I get: Traceback (most recent call last): File "pbclient.py", line 12, in ? def1 = pb.getObjectAtSSL("localhost", 33333, 30) File "/usr/lib/python2.2/site-packages/twisted/spread/pb.py", line 1190, in getObjectAtSSL reactor.connectSSL(host, port, bf, timeout) File "/usr/lib/python2.2/site-packages/twisted/internet/default.py", line 260, in connectSSL c.connect() File "/usr/lib/python2.2/site-packages/twisted/internet/base.py", line 504, in connect self.transport = transport = self._makeTransport() File "/usr/lib/python2.2/site-packages/twisted/internet/ssl.py", line 173, in _makeTransport return Client(self.host, self.port, self.bindAddress, self.contextFactory, self, self.reactor) File "/usr/lib/python2.2/site-packages/twisted/internet/ssl.py", line 104, in __init__ tcp.Client.__init__(self, host, port, bindAddress, connector, reactor) File "/usr/lib/python2.2/site-packages/twisted/internet/tcp.py", line 430, in __init__ self._finishInit(whenDone, skt, err, reactor) File "/usr/lib/python2.2/site-packages/twisted/internet/ssl.py", line 122, in _finishInit self.startTLS(self.ctxFactory) File "/usr/lib/python2.2/site-packages/twisted/internet/tcp.py", line 303, in startTLS holder = Connection.startTLS(self, ctx) File "/usr/lib/python2.2/site-packages/twisted/internet/tcp.py", line 190, in startTLS self.socket = SSL.Connection(ctx.getContext(), self.socket) AttributeError: 'int' object has no attribute 'getContext' What's wrong? Your help is very appreciated. Thanks in advance. Best regards, Ruslan [View Less]

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[Twisted-Python] Guard
by Moshe Zadka July 21, 2003

July 21, 2003

As many of you know, using guard (the webby interface to authentication) has been a thorny issue with Twisted. Christopher Armstrong and I wrote a module which hides many of the details of using guard, and supplies a much more usable interface. So, here is an example of using twisted.web.woven.simpleguard: from twisted.cred import checkers from twisted.internet import reactor from twisted.web import server, resource from twisted.web.woven import simpleguard class SimpleResource(resource.… [View More]

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[Twisted-Python] getObjectAtSSL: client just hangs
by Ruslan Spivak July 21, 2003

July 21, 2003

Hello! I found patch to spread.pb, so that there is no exception , but now my client just hangs with no response. Here is the simple server: from twisted.spread import pb from twisted.internet import app, reactor from OpenSSL import SSL class ServerContextFactory: def getContext(self): """Create an SSL context. This is a sample implementation that loads a certificate from a file called 'server.pem'.""" ctx = SSL.Context(SSL.SSLv23_METHOD) ctx.… [View More]

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[Twisted-Python] Python 2.3 and Twisted 1.0.6
by Bob Hicks July 21, 2003

July 21, 2003

Does the current Twisted framework work with 2.3 or do I need to wait a bit? Bob

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[Twisted-Python] t.w.woven.widgets patch
by Philippe Lafoucrière July 21, 2003

July 21, 2003

Hi all, I am really surprised by the way the Anchor widget works. It would be really helpful to have a template similar to generated output. With that kind of template : **** <ul model="directory" view="List"> <li pattern="listItem"><a href="#" view="Anchor">ListItem</a></li> <li pattern="emptyList">No files</li> </ul> **** the output is currently : **** ListItemfile1 ListItemfile2 ListItemfile3 **** instead of **** file1 file2 file3 ****… [View More]

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[Twisted-Python] Twisted Bug Tracking
by Jonathan Lange July 21, 2003

July 21, 2003

One of the goals with Issues was to have something usable by the developers and users of Twisted, as there is much dissatisfaction with sourceforge's tracker. If people would like to see Issues used in this way, then I'd appreciated being told about any important missing features, so things can start actually happening. If not, and there is some other solution in mind, let's switch to that now, and kill off Issues entirely (except perhaps as an example). After all "code is a liability, … [View More]

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[Twisted-Python] client-server communication + ssl + wxpython: newbie question, help please
by Ruslan Spivak July 21, 2003

July 21, 2003

Hello, twisted users! I'm newbie to twisted and after reading documentation feel somewhat a little bit confused, don't know where to start. Can you give an advice on the following: I need to have a server and a GUI client(wxpython), which communicates using ssl. Server: - it should take requests for establishing connection from a lot of GUI clients using ssl - the request for connection method will pass to server simple types (strings and dicts) - server will ask radius … [View More]

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[Twisted-Python] How to send message to all connected clients
by Minh Luu July 20, 2003

July 20, 2003

Hi, Could I have some advice on how to send a message to all connected clients. Where do I keep the list of the client connections - in the sub-class of Protocol or in the sub-class of Factory? Do I call the write method for each client connection or there is a better way in twisted to send a message to all the clients or a group of clients. Thanks,

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