June 2000 - Zope - Zope lists

Error on installing DemoPortal from PTK
by Indra Gunawan 29 Jun '00

29 Jun '00

I've installed PTK import the demo portal, restart Zope. but when I want to create Portal object, (all of them succeeded). I'm using Zope 2.1.6 on Windows 2000, and using PTK 0.7.1 after I'm confirming my mail server, the page return something like this and stop Error Type: AttributeError Error Value: setMemberProperties Could you guys help me please? Thanks -IGUN-

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DTML Document class Id bug, somewhat fixed. But now setName ...
by Walter A. Aprile 29 Jun '00

29 Jun '00

Hi, I had (have) a problem with the Id property on an Article class that subclasses the DTML document. And indeed the problem was with the fact that I was subclassing the DTML Document, which as explained in http://www.zope.org/Members/AlexR/ZClassIDBug somewhat mangles the Id property. Public thanks to Rik Hoekstra <rik.hoekstra(a)inghist.nl> for suggesting that. I added this fix (from the page I mention above) to the constructor method,  <dtml-call "setName(REQUEST['id'])">  And when I try creating a new object, it blows up in my face with this error: Unauthorized You are not authorized to access setName. Traceback (innermost last): File /usr/local/zope/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /usr/local/zope/lib/python/ZPublisher/Publish.py, line 179, in publish File /usr/local/zope/lib/python/ZPublisher/Publish.py, line 165, in publish File /usr/local/zope/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: ArticleClass_add) File /usr/local/zope/lib/python/ZPublisher/Publish.py, line 102, in call_object (Object: ArticleClass_add) File /usr/local/zope/lib/python/OFS/DTMLMethod.py, line 150, in __call__ (Object: ArticleClass_add) File /usr/local/zope/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: ArticleClass_add) File /usr/local/zope/lib/python/DocumentTemplate/DT_With.py, line 148, in render (Object: ArticleClass.createInObjectManager(REQUEST['id'], REQUEST)) File /usr/local/zope/lib/python/DocumentTemplate/DT_Util.py, line 329, in eval (Object: setName(REQUEST['id'])) (Info: setName) Unauthorized: (see above) I _think_ that my user on this system has enough permissions to do this. Should I just ditch the class and recreate it (under the hypothesis that I botched something while I was creating it the first time), or should I pester the guy that made my user for additional, God-like, power ? And what is so special about setName ? This is under: Zope version: Zope 2.1.6 (binary release, python 1.5.2, solaris-2.6-sparc) Python version: 1.5.2 (#8, Nov 16 1999, 10:05:41) [GCC 2.8.1] Thanks in advance, Walter -- Vita brevis, ars longa, occasio celeris, experimentum periculosum, judicium difficile. Attention: Un train peut en cacher un autre -><- Eris aprueba este email ! -><- http://redescolar.ilce.edu.mx

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RE: Zope Question entry: Security changes
by Brian Lloyd 29 Jun '00

29 Jun '00

> Description: (I posted this to zope-dev, but havent seen an > answer yet. Im adding it here so it doesnt get forgotten) > > some questions raised by > http://www.zope.org/Documentation/How-To/ProductAuthorUpdateGuide > > > Firstly, how does the presence of > __allow_access_to_unprotected_subobjects__=1 in a class > affect access to attributes in derived classes? Does it > affect the whole instance, or just attributes of the class > that includes it. In the following example I know subobject_2 > is accessible, but what about the others? > <example snipped> Toby, (sorry not to get back to you earlier on this) The security assertion is generally tested on instances, so if an instance has the assertion in its class (or any of its base classes) then it is effective for all of the base classes of that object. > Secondly, I am confused that there have not been any security > changes in ObjectManager.py and PropertyManager.py. As I > understand it, the subobjects that they manage (ie properties > and folder items) now fall into the inaccessible-by-default > category. What am I missing? Actually there has been a change: the security assertion is in SimpleItem.Item (which acts as a base class for most, but not all, Zope objects). This is why "dynamic" attributes such as properties continue to work as before. Your first reaction might be (as mine was) "well, doesn't that just put us right back where we were before?". Not quite. What has been done is a first step to changing the policy to deny- by-default rather than allow-by-default. Having the assertion in the Item class has the effect of: o allowing access to properties and some other kinds of attributes that are not currently explicitly protected, needed for backward compatibility o DISallowing access to certain other things that the old security rules would have allowed - for example under the old rules alone it was possible to get to the func_globals and other attributes of methods that you really shouldn't have access to. We had to handle that with special cases, which was painful and error prone (and only worked for problems that you knew about). The new policy with the security assertion allows us to keep access to properties and things we _need_ access to for backward compatibility, but also has the effect of protecting things like method attributes and other (possibly unknown) bits that should be off limits (a method would need a security assertion of its own for those things to be accessible). While this is not totally perfect and still requires you to be careful about protecting attributes of base classes, it is better than it was before and a first step on the road to where we want to be that shouldn't cause too much angst among users and product developers. Hope this helps - I'm going to reformat this a little and add it to the Product author guide. Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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DCOracle Problem
by David A Lipsky 29 Jun '00

29 Jun '00

I was wondering if you could help me with a problem I've been having with DCOrale, connecting to Oracle8i. import DCOracle conn = DCOracle.Connect(...) curs = conn.cursor() conn.procedures.some_stored_procedure(curs) curs.fetchall() curs = conn.cursor() conn.procedures.some_other_stored_procedure(curs) curs.fetchall() some_stored_procedure and some_other_stored_procedure return different rowtypes. Either the second call throws the following error, or it returns the wrong set of columns (it will return only those columns that were returned in the first call): Traceback (innermost last): File "<stdin>", line 1, in ? File "/usr/lib/python1.5/DCOracle/ociProc.py", line 134, in __call__ for c in iocursors: c._describe() File "/usr/lib/python1.5/DCOracle/ociCurs.py", line 130, in _describe if rc!=1007: self._error() File "/usr/lib/python1.5/DCOracle/ociCurs.py", line 109, in _error raise error, (rc, oci_.OracleErrorMessage(self._c.lda, rc)) oci.error: (1003, 'ORA-01003: no statement parsed') Explicitly closing the cursor between the calls doesn't seem to help, nor does reusing the same cursor. The only way I've been able to call two stored procedures in this way is by closing the connection itself between calls. Here's an actual session: Note that get_sentence_ids should return one integer per row, and get_sentences should return that integer along with some text. >>> import DCOracle >>> conn = DCOracle.Connect('********/********') >>> curs = conn.cursor() >>> conn.procedures.get_sentence_ids(curs) >>> curs.fetchall() [(6,), (5,), (8,)] >>> conn.procedures.get_sentences(curs) >>> curs.fetchall() [(6,), (5,), (8,)] >>> curs = conn.cursor() >>> conn.procedures.get_sentences(curs) Traceback (innermost last): File "<stdin>", line 1, in ? File "/usr/lib/python1.5/DCOracle/ociProc.py", line 134, in __call__ for c in iocursors: c._describe() File "/usr/lib/python1.5/DCOracle/ociCurs.py", line 130, in _describe if rc!=1007: self._error() File "/usr/lib/python1.5/DCOracle/ociCurs.py", line 109, in _error raise error, (rc, oci_.OracleErrorMessage(self._c.lda, rc)) oci.error: (1003, 'ORA-01003: no statement parsed') Any advice or help you can give would be greatly appreciated. Thanks! -David Lipsky Openmind Commonsense Group MIT Media Lab

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Authentication, Anonymous and Public
by Capesius, Alan 29 Jun '00

29 Jun '00

I'm running into a problem after implementing jcNTUserFolder in a subfolder of my site. Users can access the root level or particular subfolders anonymously. Once a user accesses the protected NTUserFolder, the credentials are saved in the browser. If the user then returns to the anonymous area, they can no longer access th folder due to the browser credentials. Does Zope have a mechanism equivalent to the Novell NDS Public access? that is to say: Anonymous = not authenticated. Everyone = authenticated users (that are members of the group) Public = authenticated and anonymous users. I'd like the default access to be "anybody and their brother" rather than "those people who haven't logged in"

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PowerMac 7500 with LinuxPPC and Zope?
by Daniel Muller 29 Jun '00

29 Jun '00

Hi, I would like to turn an old Mac 7500 into a Zope server. LinuxPPC installs on the Mac PowerPC using the Red Hat 6.1 linux distribution. Does anyone have any experience with Zope with this type of set up? Should I consider a different linux distribution than PPC? Thanks, Daniel

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bobobase_modification_time off by 1 day - why?
by Luke Tymowski 29 Jun '00

29 Jun '00

Hello, Zope reports the bobobase_modification_time to be off by one day (1 day behind). The box has the right time (when checked from the OS), and asking Zope to return ZopeTime returns the correct date and time. Anyone know why? thanks, Luke

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WebOS and Zope
by Jason Spisak 29 Jun '00

29 Jun '00

Zopists, I have been away for a bit, and will be gone again soon, but I found this the other day: Has anyone checked out http://www.webos.com ? It's free to sign up, just use explorer 5.0 and try it. I was amazed. It has drag and drop, looks like a real desktop. Now for the Zope angle: I am curious if anyone thinks Zope can server up content like this? XML Desktop? I think they are using ColdFusion though. An actual webtop powered by Zope. What would it take? They say they are going to release it OpenSource on their developer page. ;) All my best, -- Jason Spisak 444(a)hiretechs.com

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Multiple Languages
by Christian Zagrodnick 29 Jun '00

29 Jun '00

Hi all, has anybody figured out how to make a zope website multilingual? I have to make a website in German and English - but the database stuff etc. is all the same. Did anybody do that? -- Christian Zagrodnick - Progressive Media Production http://www.promp.de/ Die Haftung ist auf das Gesellschaftsvermoegen beschraenkt.

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DTML TREE TAG problem ???
by Frederic Quin 29 Jun '00

29 Jun '00

Hi all, it's really bizarre... I use the dtml-tree tag with the "single" option activated, and also with the "sort" option. The tree is generated successfully but when I click on the "plus" image, Zope change the order of my items... Frederic

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