September 2000 - Zope

Major problem involving Multiple zopes on one machine
by Bill Anderson 06 Sep '00

06 Sep '00

This is happening on an HP-UX 11.0 machine. Setup: Two Zope installs, TWO IP adresses. Each install has the -a xx.xx.xx.xx address option passed via the standard start script. problem: occasionally, while working on one, I wind up actually working on the other. Clarification: While in the manage screen for ServerA, I occasionally see the management screen for ServerB. Even wihtout being logged into ServerB. (IE. clean browser session) This sucks. -- Bill Anderson (ARC) Unix/Linux System Administrator HPSO Engineering Productivity Team Wednesday, September 06, 2000 Random Quote: (A)bort, (R)etry, (S)elf-destruct?

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DateTime.now().iso_week
by Bill Anderson 06 Sep '00

06 Sep '00

In Zope, I need to get the results of the command in the subject. Unfortunately (and somewhat irritatingly...), Zope doesn't seem to use the mxDateTime package, and thus, _.DateTime does _not_ have it. Anyone know how I would go about getting it? Without using an External method? -- Bill Anderson (ARC) Unix/Linux System Administrator HPSO Engineering Productivity Team Wednesday, September 06, 2000 Random Quote: Why can't women put the toilet seat back up?

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INSTANCE_HOME problems...
by Will Dennis 06 Sep '00

06 Sep '00

Hello all, I have followed 4am's INSTANCE-HOME How-To, and have set up a Zope Instance. I created the var, import, Extensions and Products directories from scratch. I then put a new product in the new instance's Products directory. When I start my new Zope instance, it sees all of the products that are installed in the base Zope installation, but not the new product in the instance's Products directory. If I put the new product in the base Zope installation, then my new instance sees it. Based on my understanding of the INSTANCE_HOME How-To, I should be able to have separate products in the instance's Products directory, right? Any help on this is greatly appreciated! If you could, please cc: any responses to my email address (willd(a)p-wave.com) as well as the list, since I am in digest mode. Thanks! BTW, I'm running Zope 2.2.1 on linux2. Thanks again folks, Will Dennis P-Wave, Inc.

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ZDebug Wizzard interference
by Albert Boulanger 06 Sep '00

06 Sep '00

Shane wrote > > > http://www.zope.org/Members/hathawsh/ZDebug/index_html > > ZDebug is a set of patches to Zope that help in the deciphering of DTML > errors and authorization exceptions. Because this is the first > release, remember to make a backup before installing. Looks like ZDebug does not work to well with wizards -- I suspect because of ZCallable. I am using a PTK snapshot from today, latest Zope. Did a test with and w/o ZDebug. Wizard works fine w/o. By the way I like where ZDebug is going! This is what happens when you ad a portal.... An exception occurred in a DTML method or document. Error type: exceptions.IndexError Error value: list index out of range Innermost method: /vpatch/PortalWizard/wizard_fillin_fields Namespace Stack (innermost entry at top) ID Type (N/A) mapping with keys: ['document_id', 'document_title'] (N/A) mapping with keys: ['document_id', 'document_title'] PortalWizard InstanceDict REQUEST ZPublisher.HTTPRequest.HTTPRequest Source of /vpatch/PortalWizard/wizard_fillin_fields with fault: <dtml-let pagevars="_.getattr(wizard_pages[wizard_index], 'wizard_variables', [])"> <dtml-in "REQUEST.form.keys()"> <dtml-let key="_['sequence-item']"> <dtml-if "key[:7] != 'wizard_' and key not in pagevars"> <input type="hidden" name="&dtml-key;" value="<dtml-var "REQUEST.form[key]" html_quote>"> </dtml-if> </dtml-let> </dtml-in> </dtml-let> <dtml-if wizard_test> <input type="hidden" name="wizard_test" value="1"> </dtml-if> vPatch Home | Products, Services, and Solutions | Testimonials | Investor Relations | Demos | Login/Registration | Learning Center | Contact Us Traceback (innermost last): File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/ZPublisher/Publish.py, line 187, in publish File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: RoleManager) File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/ZPublisher/Publish.py, line 171, in publish File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: index_html) File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: index_html) File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/App/Factory.py, line 178, in index_html (Object: RoleManager) File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/Products/ZCallable/__init__.py, line 101, in __call__ (Object: Traversable) File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/OFS/DTMLMethod.py, line 172, in __call__ (Object: index_html) File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/Products/ZDebug/DTMLLocator.py, line 103, in __call__ (Object: index_html) File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/DocumentTemplate/DT_String.py, line 528, in __call__ (Object: index_html) File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/Products/ZDebug/DTMLDebug.py, line 213, in debug_render_blocks File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/Products/ZDebug/DTMLDebug.py, line 210, in debug_render_blocks File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/OFS/DTMLMethod.py, line 168, in __call__ (Object: wizard_fillin_fields) File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/Products/ZDebug/DTMLLocator.py, line 103, in __call__ (Object: wizard_fillin_fields) File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/DocumentTemplate/DT_String.py, line 528, in __call__ (Object: wizard_fillin_fields) File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/Products/ZDebug/DTMLDebug.py, line 259, in debug_render_blocks File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/Products/ZDebug/DTMLDebug.py, line 192, in debugException (Object: pagevars="_.getattr(wizard_pages[wizard_index], 'wizard_variables', [])") File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/Products/ZDebug/DTMLDebug.py, line 257, in debug_render_blocks File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/DocumentTemplate/DT_Let.py, line 146, in render (Object: pagevars="_.getattr(wizard_pages[wizard_index], 'wizard_variables', [])") File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/DocumentTemplate/DT_Util.py, line 337, in eval (Object: _.getattr(wizard_pages[wizard_index], 'wizard_variables', [])) (Info: wizard_pages) File <string>, line 0, in ? File /users/hog/software/zope/Zope-2.2.0-solaris-2.6-sparc/lib/python/DocumentTemplate/DT_Util.py, line 163, in careful_getitem IndexError: (see above)

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Re: [Zope-Perl] Send me your Perl Methods
by Andy McKay 06 Sep '00

06 Sep '00

Or maybe using a perl module that doesnt exist in Python? I was looking at MP3::Napster the other day but Im stuck on Windows. ----- Original Message ----- From: "Gisle Aas" <gisle(a)ActiveState.com> To: "Michel Pelletier" <michel(a)digicool.com> Cc: <zope-perl(a)zope.org>; <amos(a)digicool.com> Sent: Wednesday, September 06, 2000 1:33 PM Subject: Re: [Zope-Perl] Send me your Perl Methods > Michel Pelletier <michel(a)digicool.com> writes: > > > Gisle Aas wrote: > > > > > > > > > I'm also looking for interesting examples :-) > > > > > > Do you have any interesting PythonMethod examples? I can probably > > > translate it to perl for you. > > > > Yes, I thought that was a good approach. I don't really have any good > > python methods either, but I can come up with some. > > > > Here's an algorithm I did in the Globbing Lexicon component of Zope. > > This turns a string into 'digrams' Which is a common wild-card searching > > datastructure. So: > > > > bob => ['$b', 'bo', 'ob', 'b$'] > > python => ['$p', 'py', 'yt', 'th', 'ho', 'on', 'n$'] > > > > Dollar signs mark the beginning and ending of the word. > > > > def digram(word): > > """ """ > > digrams = [] > > digrams.append('$' + word[0]) # mark the beginning > > > > for i in range(len(word)): > > digrams.append(word[i:i+2]) > > > > digrams[-1] = digrams[-1] + '$' # mark the end > > > > return digrams > > > > There's probably a better way to do it in Python, and this should be > > Perl's forte. Can someone come up with a reasonably cool Perl method > > that did this? > > sub digram { > my $word = shift; > my @digrams; > push(@digrams, '$' . substr($word, 0, 1)); > push(@digrams, substr($word, $_, 2)) for 0 .. length($word)-1; > $digrams[-1] .= '$'; > return \@digrams; > } > > I'm not so sure about this being perl's forte. There was no way to > use regular expressions here :-) > > I would actually like to see some methods that interact more with the > Zope environment. > > Regards, > Gisle > > _______________________________________________ > Zope-perl maillist - Zope-perl(a)zope.org > http://lists.zope.org/mailman/listinfo/zope-perl >

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Cut down on the Available Objects list.
by Erik Enge 06 Sep '00

06 Sep '00

Hi, all. When I create ZClasses I can make the Available Objects shrink to just a couple of available objects via subclasses and so forth. How would I do this with a Python Class in a Python Zope Product? (Let's say an OFS.Folder.Folder class, which would normally could contain all available objects.) Thanks :-)

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Proxy roles don't propagate? - bizzare permissions from ZDChart too
by Brad Clements 06 Sep '00

06 Sep '00

I'm using LoginManager and the loginForm cookie method for security. I want my login form to use the same standard_html_header, stylesheet and so on as my system. My hierarchy is / Strader StyleSheet acl_Users loginForm I've denied anonymous access to Strader and so on, but I want the loginForm to be able to load standard_html_header, which in turn references a few things in Strader Anyway, my loginForm has this: <dtml-with Strader> <dtml-var standard_html_header> </dtml-with> I've given the loginForm a proxy role called "Customer" Customer has full access to Strader and everything in it. It looks like standard_html_header is rendered, but when standard_html_header calls StyleSheet and other objects in the Strader folder, I get the browser login box. Cancelling that shows "access to StyleSheet denied". Its as if the proxy role assigned to loginForm is discarded by standard_html_header, even though I didn't assign standard_html_header any proxy roles. Is this a bug, or by design? -- Also, I see that I have some very strange permissions in my list, looks like an installed product goofed. I see this single character permissions. A C D G Z a d h r s t Ahh.. Looks like ZGDChart hasn't used a tuple where it should... Brad Clements, bkc(a)murkworks.com (315)268-1000 http://www.murkworks.com (315)268-9812 Fax netmeeting: ils://ils.murkworks.com AOL-IM: BKClements

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Buying Zope for 139 German Marks - It´s cheap
by Harald Koschinski 06 Sep '00

06 Sep '00

Hallo all, maybe its old new´s - maybe not: Zope is part of "SuSE Linux 7.0 Profesional Edititon" and this is printed on the box in the categorie "Features and Highlights". It is indeed a Highlight. Regards Harald

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Form Validation
by Andreas Pauley 06 Sep '00

06 Sep '00

Hi, I see you can let Zope do basic form validation for you by appending ":string" or ":int" to your form name. The error messages that are displayed are not that clear, however. How can I get more control over what happens when an error occurs? (e.g. I'd like to be able to get back a list/ditionary of errors instead of handling them one by one) Where can I get documentation on all the built-in form validation options at my disposal? (e.g. a field may not be required, but if it is filled in it has to be an integer) Is Zope's built-in form validation sufficient for a complex system? Are there better ways to do form validation? I saw a php program on freshmeat.net the other day that supposedly generates forms complete with client and server-side validation. Do we have a similar product in Zope? Thanks, Andreas. -- In a world without fences, who needs gates?

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RE: [Zope] re module & through the web security
by Chris McDonough 06 Sep '00

06 Sep '00

If you're concerned about the availability of various modules within PythonMethods, you should participate in the PythonMethods project wiki, probably at the page http://dev.zope.org/Wikis/DevSite/Projects/PythonMethods/CurrentIssues. > -----Original Message----- > From: Dan L. Pierson [mailto:dan@sol.control.com] > Sent: Wednesday, September 06, 2000 10:14 AM > To: Chris Withers > Cc: Chris McDonough; T.J. Mannos; Marcus Mendes; zope(a)zope.org > Subject: Re: [Zope] re module & through the web security > > > Chris Withers writes: > > Chris McDonough wrote: > > > There's the perception at DC that > > > 're' isn't appropriate for through-the-web usage because > it's possible to > > > write and use regex that sends the Python interpreter thread it's > > > operating within into a neverending loop. Sorry. > > [snip] > > > It seems like that perception is hobbling Python Methods, > in particular, > > by removing useful stuff like the re module because the > assumption is > > being made that people editing TTW code will be untrusted. > > I think the re module is a good example for arguing that DTML and > Python Methods should have different criteria for deciding what > modules are available (and separate permissions for users, if they > don't already). > > Somehow, the idea of mixing regexps and DTML gives me chills, but I > agree that it is a perfectly reasonable tool to want to use > in Python Methods. > This relates more the crusade to depricate DTML programming > as opposed > to DTML report writing than it does to security concerns. > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev ) >

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