Mailman 3 August 2005 - Twisted-web

Test
by Philippe Lafoucrière 05 Aug '21

05 Aug '21

Hi all just a test

3 2

Getting URL
by Alberto Trujillo 11 Sep '05

11 Sep '05

Could anybody help me with this piece of code. I would like to add to the url the information that is placed in the line "50", but looks not possible. The url shoul be like the url in the line "51". def data_header(self, ctx, data): """return the content for the head of the template""" http_equiv = '' content = '' self.loginOK = False myform = ctx.arg('form') if (myform == 'login') and (self.executeLogin(ctx)): self.loginOk = True http_equiv = 'refresh' href = url.here.curdir() href = href.add('content', 'home') 50 #content = '3;URL=' + href 51 content = '2;URL=http://localhost:8088/' return {'http_equiv':http_equiv, 'content':content} Another question. While I'm processing the call from an url, is possible to change the values from the arguments? I mean, in this example I have a template that calls to different fragments (header, navigation, content, footer), the data_header method inside the template is the first one in the calls. Could I change here the value of one argumentin such a way that when the data_content method inside the template is called, this one receives the new value. Thank you very much

2 1

XML-RPC and None
by Matt Feifarek 09 Sep '05

09 Sep '05

Hello. We're using twisted.web.xmlrpc to serve an xmlrpclib client, so python-to-python. We'd like to pass None through the rpc connection on occasion. There's a flag in the standard lib to allow this to serialize ( send allow_none=True to the xmlrpclib.Server() ) We're getting this error from the twisted resource when we try to serialize 'None': Fault: <Fault 8002: "can't serialize output"> I know that the twisted resources uses the stock xmlrpclib, but how can we tell it to allow None to serialize the twisted way? Thanks.

3 2

Problems with the new lines
by Alberto Trujillo 31 Aug '05

31 Aug '05

Hello: I have some troubles with nevow and the new lines. I'm taking datas from one form and after try to display them in a different page, like a simple text between simple "<td>" tags. Well, the problem is that the new lines are not display in the new page. Could anybody tell me how to fix this. Thank you very much. Here is the code form.html ----------------- < form method="post" name="formrecipients" nevow:render="formrecipients"> < nevow:attr name="action">< nevow:slot name="action"/></ nevow:attr> ... < td colspan="2"> < textarea name="description" rows="5" cols="50" class="formelements"></ textarea> </ td> ... </ from> file.html ---------------- < td colspan="3" class="wktdcontent" width="50px"> < div ID="demodiv" class="demo" style="display: none;"> < nevow:attr name="id">< nevow:slot name="id"/></ nevow:attr> < nevow:slot name="description">Description</ nevow:slot> </ div> </ td> file.py -------------- def render_messages(self, ctx, data): ctx.fillSlots("id", data.id) ctx.fillSlots("subject", data.subject) ctx.fillSlots("sender", data.sender) ctx.fillSlots("date", data.date) ctx.fillSlots("description", data.description) return ctx.tag

3 5

Multiple select box
by Alberto Trujillo 31 Aug '05

31 Aug '05

If I have a multiple select box, how can I receive all the selected items? The next line only give me one value: items = contex.arg('selectbox') Thanks

1 0

MochiKit, Nevow
by Thomas HERVE 31 Aug '05

31 Aug '05

I didn't see anyone talking about MochiKit here, but as it's someone of Twisted community I think it's not unknown among developpers. MochiKit (http://mochikit.com/) is a Javascript framework started by Bob Ippolito, which brings great functionnalities on client side. Especially it defines Deffered what I would love use with LivePage, as I find this very consistent with server part. There are also Iter and DOM (stan in Javascript). I began to make some mods en nevow_glue.js for using MochiKit, and it removes all the ugly parts (XMLHttpRequest, events, DOM creation). I think having a Mochi-ized nevow_glue would be great, even if keeping the standard one is necessary for users (MochiKit could be a strong requirement for an application). I wanted to make all the changes, but as the LivePage API seems to change in nevow 0.5, I'll wait a bit. Some comes my second topic : when can we hope having a nevow release ? I'm not telling "hey, please hurry up guys", but more "is there any todo list, critical bugs and/or tests needs where I could have a look and maybe help for the release ?". Also, is the svn-trunk version stable enough (for LivePage ?) that we could use it ? Regards, -- Thomas

3 3

Tabbed pane
by Michal Pasternak 29 Aug '05

29 Aug '05

Hi, I've noticed, that tabbed pane stopped working in MSIE (and, I firmly believe it worked some time ago). Also, in konqueror, the tabs display, but can't be changed. Safari, opera and firefox work ok. Any ideas on introducing a working (and not proper) implementation for MSIE to Nevow again? I think, that the main reason it doesn't work right now are CSS. Having 2 CSS would clobber Nevow code, so... ideas? Take care, -- "(Man) tries to live his own life as if he were telling a story. But you have to choose: live or tell." -- Sartre http://www.bykom-stop.avx.pl/ - popieraj!

1 0

resolving a hostname problem
by Raphael Arbuz 26 Aug '05

26 Aug '05

Hi to all of you, I;m trying to impleting hostname resolution in a program that aimed to exchange UDP packets with his peers. What I do is add the two lines: dd = reactor.resolve(IP) dd.addCallback(self.call, distPort, password, destroy) To my program, but when I do that, I don't reach the call function. Seems like something would be missing. Does anyone have a clue? Cheers! Raphael

4 5

Re: URL length limits in twisted-web
by Lenny G Arbage 25 Aug '05

25 Aug '05

--- Tommi Virtanen wrote: > > There's this DoS-avoidance bit: > > class LineReceiver(protocol.Protocol, _PauseableMixin): > ... > MAX_LENGTH = 16384 Thanks, Tommi. That appears to be it (16898 - len('http://') and the non "path" part of my URL = the more sane number of 16384). The 'silent failure' feature doesn't seem quite right to me. LineReceiver.dataReceived() returns self.lineLengthExceeded(line), which calls self.transport.loseConnection(), which means that neither http.HTTPClient.lineReceived() nor http.HTTPChannel.lineReceived() ever get called. If I'm following the code correctly, loseConnection() does its job silently, and the caller never knows what happened, but is led to believe that the request was sent successfully. I changed LineReceiver.lineLengthReceived() as follows: def lineLengthExceeded(self, line): """Called when the maximum line length has been reached. Override if it needs to be dealt with in some special way. """ #return self.transport.loseConnection() self.transport.loseConnection() raise error.ConnectionLost('Line length exceeded') Which now does what I would expect (raises an exception if I try to send URLs that exceed the maximum), but I'm sure there are reasons not to raise an exception here (other classes that rely on LineReceiver, etc). What is the proper solution to this issue? Lenny ____________________________________________________ Start your day with Yahoo! - make it your home page http://www.yahoo.com/r/hs

2 1

How to "monitor" parallel executions of Deferreds
by Pedro Sanchez 25 Aug '05

25 Aug '05

My apologies. Sorry, this should have gone to twisted-python instead. ========== Hello, I need to implement a function (say, myfunc) that fires several independent Deferreds (using deferToThread), and that returns a deferred itself. A client of this function (say, client) is expected to do something like this: def client(): def done(success) if success: print 'd1 and d2 are done' d = myfunc() d.addCallback(done) ... myfuct() above does something like this: def myfunc(): def checkFunc1(success): ... def checkFunc2(success): ... d = defer.Deferred() d1 = deferToThread(func1).addCallback(checkFunc1) d2 = deferToThread(func2).addCallback(checkFunc2) d.addCallback(????) return d Clearly d, d1, and d2 in the above are disconnected. And I don't want to serialize d1 and d2 which would be a way to connect them all. The problem is I don't know how d should be defined. The idea is that the 'done' function in the client function is only called when both threads d1 and d2 are done. Can you give me any suggestions on how to implement myfunc()? Thank you, -- Pedro

2 1