March 2004 - Zope - Zope lists

BeforeDeleteException and FTP "530 Unauthorized" messages
by Joseph Kocherhans 01 Apr '04

01 Apr '04

I've just spent a few hours digging around in ZServer and friends. I haven't wrapped my head around everything, but the basic idea I get is that if a user is not allowed to delete objects from a container, then either an Unauthorized or Forbibben exception is raised (I'm still not able to tell which). This is then translated to it's respective code (401 or 403) and set as the status of an Response object. Then, in FTPServer the 401 or 403 is returned to the ftp client as "530 Unauthorized" I have a product that is using BeforeDeleteException to veto object deletion. I would expect that when I tried to delete the object via FTP that the ftp client would get "530 Unauthorized", but it gets nothing and the BeforeDeleteException is going uncaught. It seems to me that in ZServer the http response status is directly tied to the exception type (either Unauthorized or Forbidden.) Does anyone how I might go about geting the ftp server to return "530 Unauthorized" if object deletion is vetoed with BeforeDeleteException? Or more specifically how a BeforedDeleteException could change the response status to 401 or 403 (which is more appropriate?) Also, is this a bug, or is there some reason the BeforeDeleteException goes uncaught? Any insight would be much appreciated. Thanks, joseph

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two object is the same
by zope＠netchan.cotse.net 31 Mar '04

31 Mar '04

In my unittest, I have to check that a specified zodb object is the same (e.g. not deleted and recreated) after an operation as it was before. I thought I could do this: ob = df._getOb(drid) [...] # do something if ob is not df._getOb(drid): # object changed ('df' is inherited from Folder, 'ob' is from SimpleItem) However this doesn't work because the 'is' operator uses the memory address of the objects and these are not the same in subsequent calls: (Pdb) id(df._getOb(drid)) 177727520 (Pdb) id(df._getOb(drid)) 177727424 (Pdb) id(df._getOb(drid)) 177727520 (Pdb) id(df._getOb(drid)) 177727424 (Pdb) id(df._getOb(drid)) 177727520 (Pdb) id(df._getOb(drid)) 177727424 Is there any deterministic way for performing the check above? Regards, Sandor

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Re: plone 1.0.3 to 2 final fails dry run migrate
by Christian Heimes 31 Mar '04

31 Mar '04

Kelley, Sean wrote: > I got past the migrate error but after the migrate the site is broken with > the following traceback...any ideas? Please report the bug using PloneErrorReporting and the official bug tracker. I don't have time right now and the problem might get lost. Christian

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patch for External Editor
by debdev＠tonelli.sns.it 31 Mar '04

31 Mar '04

hi this is an improvement for ExternalEditor 0.7 ; I attach two files __init__.py that replaces __init__.py runtime_patch.py with some code of mine explanation: the ExternalEditor does 'monkey patching', that is, it replaces ObjectManager.manage_main and FindSupport.manage_findResult with an older copy that is shipped with ExternalEditor; problem is, the copy in ExternalEditor is obsolete w.r.t. newer files in newer versions of Zope. My code instead does a dynamical patching of the two dtml. --- it would be also nice if ExternalEditor would also add to most products something as manage_options = ( {'label':'ExternalEdit', 'action': 'external_edit'},) share and enjoy a. -- Andrea Mennucc "one houndred and fifty - the chicken sings"

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multiple languages - sorting
by Milos Prudek 31 Mar '04

31 Mar '04

What is the best approach to support multiple human languages in Zope with regards to sorting? - Use ZCatalog and ZODB? Is Zope still limited to one locale which it read upon startup? - Put data into PostgreSQL? Unfortunately PostgreSQL uses system locale to define sort order, and the locale is defined at the time of creation of the whole database space. Basicaly it means one would have to run a separate postgresql server for each supported language. - Use custom PostgreSQL function? The convert function (... using utf_8_to_ascii) does not provide suitable data for sorting. -- Milos Prudek

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Re: External Editor & Content Type
by Elena Schulz 31 Mar '04

31 Mar '04

Hi Casey, sorry for my late answer. >- Name your dtml method with a .css extension and assign the editor >based on extension This does not work. On my system (WinXP, Zope2.7) EE adds a .dtml extension even if I have an id like 'my_id.css' It becomes 'my_id.css.dtml' in the temp folder. >- Use a file object or dtml document instead and set a "content_type" >property on it with the value "text/css". this works fine, so I'm happy. stupid me: I tried this on dtml method and wondered why I got an id conflict error, so I didn't even try it on a dtml document. -- Thanks for your answer, Elena

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Re: [Zope] Zope 2.7 Problem w/Value Error: unpack list of wrong size
by Paul Howell 31 Mar '04

31 Mar '04

Duh. Collector #1255 fixes that nicely, Paul. And I'm improving at searching the Collector. =Paul At 09:49 AM 3/27/2004 -0800, Chris Bruce wrote: >Already fixed and posted to the Collector. > >Chris > >----- Original Message ----- >From: Dieter Maurer >To: Chris Bruce >Cc: zope(a)zope.org >Sent: Saturday, March 27, 2004 2:29 AM >Subject: Re: [Zope] Zope 2.7 Problem w/Value Error: unpack list of wrong >size > > >Chris Bruce wrote at 2004-3-24 14:03 -0800: > >I am getting the following error while trying to add a ZClass > >programmatically with proxy set to manger: > > ... > > Module AccessControl.Owned, line 123, in getWrappedOwner > >ValueError: unpack list of wrong size > >A bug in Zope 2.7's security code. > >The author had forgotten that there are unowned objects (such >as ZClasses). The code breaks for unowned objects. > >Almost surely, it is easy to fix (look near line 123 of >"AccessControl/Owned.py"). > >-- >Dieter

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Zope 2.7 Problem w/Value Error: unpack list of wrong size
by Chris Bruce 31 Mar '04

31 Mar '04

I am getting the following error while trying to add a ZClass programmatically with proxy set to manger: Traceback (innermost last): Module ZPublisher.Publish, line 100, in publish Module ZPublisher.mapply, line 88, in mapply Module ZPublisher.Publish, line 40, in call_object Module OFS.DTMLMethod, line 130, in __call__ - <DTMLMethod instance at b30e6620> - URL: http://localhost:8080/register/addUser/manage_main - Physical Path: /register/addUser Module DocumentTemplate.DT_String, line 474, in __call__ Module DocumentTemplate.DT_With, line 76, in render Module DocumentTemplate.DT_Util, line 201, in eval - __traceback_info__: UserFileFolder_add Module <string>, line 1, in <expression> Module Shared.DC.Scripts.Bindings, line 306, in __call__ Module Shared.DC.Scripts.Bindings, line 343, in _bindAndExec Module Products.PythonScripts.PythonScript, line 318, in _exec Module None, line 3, in UserFileFolder_add - <PythonScript at /Users/UserFolders/UserFileFolder_add> - Line 3 Module AccessControl.Owned, line 123, in getWrappedOwner ValueError: unpack list of wrong size Here is the dtml: <dtml-with "Users.UserFolders.manage_addProduct['UserFileFolder']"> <dtml-call "UserFileFolder_add(redirect=0)"></dtml-with> I can manually add with no problems. Any ideas?? Chris

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Please help! can't do a redirect in a access rule
by Bruno Silva 30 Mar '04

30 Mar '04

Hi, I'm trying to give access to a folder, only if a user has a value in is session. I configured a Site Access Rule that looks like this: if context.REQUEST['BASE0'].find('zope') > -1: return #does nothing for now elif context.REQUEST.SESSION.has_key('give_access'): return #does nothing for now context.REQUEST.RESPONSE.redirect(context.REQUEST['BASE0']) I search for the word "zope" on the url base, to have always access to the workspace virtual host. If this is not the best way to do this, please feel free to give sugestions. thanks, --Bruno

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Problem with install Zope Tutorial
by Yuanhao Li 30 Mar '04

30 Mar '04

hi, I am new to zope. I try to install Pruduct Zope Tutorial, but got the error "The ZGadflyDA product must be installed!".How can i solve it? thanks -- Yuanhao Li(Jay) jay_21cn(a)web.de

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