Mailman 3 January 2004 - Twisted-web

Test
by Philippe Lafoucrière Aug. 5, 2021

Aug. 5, 2021

Hi all just a test

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Proposed backwards-incompatible changes to nevow (formless)
by Christopher Armstrong Jan. 30, 2004

Jan. 30, 2004

1. from gtk2form.py: # [:-1] is a *terrible* hack: formless sticks a Submit # button in the return value of getArgs when the # binding doesn't specify any other Buttons. It # *shouldn't* do this: it's lying about what arguments # the function will accept. It should rely on the user # interface-generater (like freeform and gtk2form) to # handle the case where no buttons are specified. That # way I can know whether or not a button should really # produce an argument to the method. deferred.callback(m(*values[:-1])) that says it all. 2. The way Typed.coerce and coerceWithBinding work are really stupid. For one, they're both optional: all code that wants to talk the interface has to say: if hasattr(o, 'coerceWithBinding'): o.coerceWithBinding(val, configurable) elif hasattr(o, 'coerce'): o.coerce(val) It should just be required on the interface. Implementors can implement with pass quite easily. For two, coerceWithBinding is a terrible name when the binding isn't what's being passed, but the configurable. And for three, there's really no reason to have both methods -- if a coercion doesn't require the configurable to do anything, it can just ignore the argument. Solution: There should just be coerce(val, configurable) on the interface, always required. 2 doesn't bother me as much as 1 does: it's a real problem that I can't think any way to get around for a complete implementation of a formless UI. DP, do you agree with these changes? I can make patches for nevow and all usages of them in Quotient, too. -- Twisted | Christopher Armstrong: International Man of Twistery Radix | Release Manager, Twisted Project ---------+ http://radix.twistedmatrix.com/

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utf-8 browser support
by James Y Knight Jan. 30, 2004

Jan. 30, 2004

Does anyone know if there are there any browsers of concern out there that don't support UTF-8? E.g. will it cause problems to always use "Content-Type: text/html; charset=utf-8"? James

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Page navigation: a cry for help
by Michal Pasternak Jan. 30, 2004

Jan. 30, 2004

Hi, please help me with this, I have no idea which approach will be the best. The basic question is: if I have website, and that website's structure is tree-like, how will be the most proper way to create navigation? I'd like to have links to neighbour pages (pages on the same node), I'd like to be able to get a list of pages on the "above" nodes. As I have seen in t.w.resource.py: def putChild(self, path, child): """Register a static child. """ self.children[path] = child child.server = self.server there is no chance I can get parent of a specific page, to provide navigation. Do you have any methods or solutions for a good, easy woven page navigation model? -- Michal Pasternak :: http://pasternak.w.lub.pl :: http://winsrc.sf.net ::don't use MySQL::details on http://sql-info.de/mysql/gotchas.html::

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Authentication with twisted.web
by Paul Moore Jan. 29, 2004

Jan. 29, 2004

I want to build a web application which requires users to log on. I'm happy building the user authentication side of things, but I'm not sure how to get the site to require authentication. I'm looking for what I think is "Basic" authentication - the one that causes the browser to pop up an "enter username and password" dialog box. I know that I could design my own front page form, to allow the user to enter a username directly, but that's not what I want here. Is this possible? (I'm sure it is, I just can't find what I should be looking for in the docs!) Thanks, Paul.

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hello
by assaf＠viven.net Jan. 29, 2004

Jan. 29, 2004

The message cannot be represented in 7-bit ASCII encoding and has been sent as a binary attachment.

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problem with minidom
by Uwe Schmitt Jan. 29, 2004

Jan. 29, 2004

Hi, I wrote a widget for if/then/else functionality in XHTML-templates: from twisted.web.woven import widgets class IfThenElseWidget(widgets.Widget): def setUp(self, request, node, data): if data: nodeToRemove = self.getPattern("else") else: nodeToRemove = self.getPattern("then") print "node before=", node.toprettyxml() print "nodeToRemove=", nodeToRemove.toprettyxml() node.removeChild(nodeToRemove) print "node after=", node.toprettyxml() And I get the following log [-] Log opened. [-] twistd 1.1.1rc1 (C:\Python23\python.exe 2.3.2) starting up [-] reactor class: twisted.internet.default.SelectReactor [-] twisted.web.server.Site starting on 8080 [-] Starting factory <twisted.web.server.Site instance at 0x00A96080> [HTTPChannel,0,127.0.0.1] node before= [HTTPChannel,0,127.0.0.1] NEIN!jAWOLL! [HTTPChannel,0,127.0.0.1] [HTTPChannel,0,127.0.0.1] nodeToRemove= jAWOLL! [HTTPChannel,0,127.0.0.1] node after= [HTTPChannel,0,127.0.0.1] NEIN!jAWOLL! [HTTPChannel,0,127.0.0.1] [29/Jan/2004:14:57:51 +0000] "GET /index.rpy/ HTTP/1.1" 200 211 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)" [-] (Port 8080 Closed) [-] Stopping factory <twisted.web.server.Site instance at 0x00A96080> [-] Saving web application to web-shutdown.tap... [-] Saved. [-] Main loop terminated. [-] Server Shut Down. As one can see, "node before" and "node after" are the same, despite the node.romveChilde() statement in setUp()... Is this a bug ??? Did I miss something ? Greetings, Uwe

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Possible bug in freeform List cont.
by orya＠bgumail.bgu.ac.il Jan. 29, 2004

Jan. 29, 2004

Hi, in addition to Gavrie's mail from the 01/01/2004. I have done a little debugging myself on this issue. It seems that when render itself implements a formless interface, rather than apply a seperate class as 'original' which implements a formless interface(see examples). 1. Both forms are construction appears to be ok 2. when clicking on the submit button of a list item formpost4-bad.tac program raise an exception. 3. All hell breaks through when trying to configurate a configurable object in postForm (freeform.py) 4. formpost4-good.tac comes back ok on second call with the configurable list of [Address(), Address().. TypedInterfaceConfigurable where formpost4-bad.tac returns a TypedInterfaceConfigurable - FormPost() insted of the above. 5. Values returned bad from method locateConfigurable() in freeform.py Help would be very much appreciated on figuring the matter. I'm using Twisted 1.1.0 and the latest Quotient CVS Gavrie's mail and the attached examples: I took one of Donovan's examples (at http://www.livejournal.com/users/fzzzy/) and modified it to work this way, but to no avail. Attached are two scripts, based in the freeformpost4.tac example. The formpost4-good.tac uses a separate class that implements the formless interface, and works perfectly. The formpost4-bad.tac script uses a Renderer subclass which also implements the formless interface (I need to do it this way because my pages include forms and also other renderers on the same page). However, this script renders the form fine, but blows up when submitting the form (traceback attached). Any form that does not use the formless.List type does work correctly this way (i.e. using a Renderer subclass which implements the formless interface). Help would be very much appreciated. I'm using Twisted 1.1.0 with the latest nevow code from the Quotient CVS. Thanks, -- Gavrie. --------------090003070107020805050604 Content-Type: text/plain; name="formpost4-bad.tac" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="formpost4-bad.tac" from twisted.application import service, internet from nevow import appserver from nevow import renderer from nevow import tags from nevow import formless from nevow import freeform import nevow class IAddress(formless.TypedInterface): street = formless.String() class Address(object): __implements__ = IAddress street = "foo" def __str__(self): return "%s" % self.street class IPerson(formless.TypedInterface): addresses = formless.List() class FormPage(renderer.Renderer): __implements__ = IPerson, renderer.Renderer.__implements__ name = "a person's name" addresses = [Address(), Address(), Address()] document = tags.html[ tags.head[ tags.link(href="/freeform_css", rel="stylesheet") ], tags.body[ freeform.configure ] ] def child_freeform_css(self, request): from twisted.python import util from twisted.web import static return static.File(util.sibpath(nevow.__file__, 'freeform-default.css')) application = service.Application("form") internet.TCPServer( 8081, appserver.NevowSite( FormPage()#Person()) ) ).setServiceParent(application) # vim: ft=python --------------090003070107020805050604 Content-Type: text/plain; name="formpost4-good.tac" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="formpost4-good.tac" from twisted.application import service, internet from nevow import appserver from nevow import renderer from nevow import tags from nevow import formless from nevow import freeform import nevow class IAddress(formless.TypedInterface): street = formless.String() class Address(object): __implements__ = IAddress street = "foo" def __str__(self): return "%s" % self.street class IPerson(formless.TypedInterface): addresses = formless.List() class Person(object): __implements__ = IPerson name = "a person's name" addresses = [Address(), Address(), Address()] class FormPage(renderer.Renderer): document = tags.html[ tags.head[ tags.link(href="/freeform_css", rel="stylesheet") ], tags.body[ freeform.configure ] ] def child_freeform_css(self, request): from twisted.python import util from twisted.web import static return static.File(util.sibpath(nevow.__file__, 'freeform-default.css')) application = service.Application("form") internet.TCPServer( 8080, appserver.NevowSite( FormPage(Person()) ) ).setServiceParent(application) # vim: ft=python --------------090003070107020805050604 Content-Type: text/plain; name="traceback" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="traceback" 2004/01/01 12:07 IST [HTTPChannel,0,127.0.0.1] Traceback (most recent call last): File "/usr/lib/python2.3/site-packages/twisted/protocols/http.py", line 950, in lineReceiv ed self.allContentReceived() File "/usr/lib/python2.3/site-packages/twisted/protocols/http.py", line 991, in allContent Received req.requestReceived(command, path, version) File "/usr/lib/python2.3/site-packages/twisted/protocols/http.py", line 549, in requestRec eived self.process() File "/usr/lib/python2.3/site-packages/nevow/appserver.py", line 99, in process return server.Request.process(self) --- <exception caught here> --- File "/usr/lib/python2.3/site-packages/twisted/web/server.py", line 158, in process resrc = self.site.getResourceFor(self) File "/usr/lib/python2.3/site-packages/nevow/appserver.py", line 125, in getResourceFor res = gener.getResourceForRequest(request) File "/usr/lib/python2.3/site-packages/nevow/appserver.py", line 50, in getResourceForReqest return self.postForm(request, res, configurable, ctx, bindingName, request.args) File "/usr/lib/python2.3/site-packages/nevow/appserver.py", line 53, in postForm return configurable.postForm(ctx, bindingName, args) File "/usr/lib/python2.3/site-packages/nevow/freeform.py", line 750, in postForm binding = configurable.getBinding(ctx, seg) File "/usr/lib/python2.3/site-packages/nevow/freeform.py", line 735, in getBinding raise ImproperInputError, name nevow.freeform.ImproperInputError: 0

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HONESTLY SOLICITING YOUR PARTNERSHIP ASSISTANCE
by PATRICK TAMA Jan. 28, 2004

Jan. 28, 2004

>From Mr.Patrick Tama ( tamapat(a)zwallet.com ) Attention Sir/Madam I am Mr. Patrick Tama and my sister is Miss Rose Tama, we are the children of Late Chief Paul Tama from Sierra Leone. I am writing you in absolute confidence primarily to seek your assistance to transfer our cash of Twelve Million Four hundred Thousand United States Dollars ($12,400.000.00) now in the custody of a private Security trust firm In Europe,the money is in trunk boxes deposited and declared as Family valuables by my late father as a matter of fact the company does not know the content as money, although my father made them to understand that the boxes belongs to his foreign partner. Source of the Funds: My late father Chief Paul Tama, a native of Mende District in the Northern province of Sierra Leone, was the General Manager of Sierra Leone mining coporation (S.L.M.C.) Freetown. According to my father, this money was the income accrued from Mining Corporation's over draft and minor sales. Before the peak of the civil war between the rebels forces of Major Paul Koroma and the combined forces of ECOMOG peace keeping operation that almost destroyed my country, following the forceful removal from power of the civilian elected President Ahmed Tejan Kabbah by the rebels. My father had already made arrangement for his family(talking about)my mother, my little sister and myself to be evacuated to The Netherlands with the CERTIFICATE OF DEPOSIT he made with a security firm in Europe through the aid of U.N evacuation team. During the war in my country, and following the indiscriminate Looting of Public and Government properties by the rebel forces, the Sierra Leone mining corporation was one of the targets looted and it was destroyed. My father including other top Government functionaries were attacked and killed by the rebels in November 2000 because of his relationship with the civilian Government of Ahmed Tejan Kabbah. As a result of my father's death and with the news of my uncle's Involvement in the air crash in January, it dashed our hopes of survival. The untimely deaths caused my mother's heart failure and other related complications which later lead to her death in the hospital after we had spent a lot of money on her early this year. Now my 18 year old sister and I are alone in this country suffering without any care or help. Without any relation, we are now like refugees and orphans. Our only hope now is in you and the boxes deposited in the Security Firm, to this effect, I humbly solicit your assistance in the Following ways. 1. To assist me claim this boxes from the security Firm as our beneficiary. 2. To transfer this money (USD$12.4MN) in your name to your country. 3. To make a good arrangement for a joint business investment on our Behalf in your country and you, our Adviser/ Manager For your assistance, I have agreed with my younger sister that 20% of the total amount will be for your effort and another 10 % to cover all the expenses that may be incurred during the business transaction, Lastly, I urge you to keep this transaction strictly confidential as no one knows our where about. Please as you show your willingness; Forward to us your full name, address and Tel/ Fax numbers, company name and address (if any) to me via my private email address as indicated below, this is for security reasons as I will only be accessing my private email. Earnestly awaiting your response. Thanks. May God bless you as you assist us Mr. Patrick Tama

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Rendering unicode instances.
by Syver Enstad Jan. 28, 2004

Jan. 28, 2004

What does one do to render Unicode objects with twisted.web (I am using woven also). I get UnicodeError's if I try to pass a unicode object that contains characters not in ASCII today. It would be nice if it was as simple as calling a method on the request setting output encoding which set the encoding in the HTTP headers and wrapped the output stream with an encoder that transparently encoded Unicode objects with the chosen encoding. If such a method is not implemented (I haven't seen one) what would be a good way to solve this problem.

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