November 2001 - Zope-Dev

ImportError
by Andre Schubert 20 Nov '01

20 Nov '01

Hi all, i have a little problem. A friend of me has developed a ZClass-Based Product with Zope-2.4.1. And now we tried to import this Product into Zope-2.3.3, but we got this error. No module named PluginIndexes.TextIndex.TextIndex But Zope-2.3.3 doesnt have PluginIndexes, and the ZClass-Product doesnt use PluginIndexes, it uses only Products which are installed on both Zopes. Q: Is there a way to import ZClass based Products from Zope-2.4.1 into Zope-2.3.3?? Thanks as

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Security
by Magnus Heino 20 Nov '01

20 Nov '01

Hi. Looking at Amos ZPublisher howto, http://www.zope.org/Members/Amos/ZPublisher Would it be possible to use the security machinery too? /Magnus

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How update metadata without Zope ?
by Pascal Samuzeau 20 Nov '01

20 Nov '01

I'm a newbie in Zope. I've installed CMF. For absolute reason, I receive, by e-mail, some HTML files, which are deposit on another directory than Zope. I have to open those files, to get the author and some others. I want to update the metadata of my Zope'site with this flow. But how can I do it? I Think it's a python script in a background task which runs. Someone to help me ? Thanks PS --------------------------------------------------------------------- OREKA ! L'ACCES A INTERNET MOINS CHER ! Connaissez vous nos nouveaux forfaits ? 10H pour moins de 40F, ou 25H pour moins de 80F (Internet + télécoms) ! Découvrez les vite ! Cliquez ici : http://www.oreka.com/start.php3?id=op3b600eafd954b

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Authentication Problem with Postgres
by Andre Schubert 20 Nov '01

20 Nov '01

Hi all, sometimes i have a curios problem with my Zope. Without any errors in any logs Zope could not authenticate himself with postgres. The error message is that there is a wrong password. After a restart of Zope everything works fine until the eror occurs again. My sysop has traced the protcols before and after the error. Zope sends some data and then a crypted password with the salt. If the error is occured the password that Zope sends is crypted wrong. After a restart of Zope the password is right crypted. Could anybody help or explain me this problem, it is very important for the further use of Zope for our websites. Thanks as

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PathIndex query options
by Jeffrey P Shell 20 Nov '01

20 Nov '01

I've looked hard at the two pages returned for "PathIndex" on Zope.org, and cannot make sense out of how to use 'level'. From the example, which is full of paths like '/aa/bb/cc' and '/cc/bb/cc' - all of the same size and using the same three letters -, I cannot tell if I can do a path query to find objects ONLY in a certain path, and not above or below it. I have a situation where I have a hierarchy of Task content objects, and in one case I only want to display the immediate child tasks at certain paths (basically to top-level tasks), using the catalog query except for (hopefully) one changed parameter. http://www.zope.org/Members/michel/ZB/SearchingZCatalog.dtml http://www.zope.org//Wikis/DevSite/Proposals/PathIndexDocumentation Jeffrey P Shell, jeffrey(a)cuemedia.com

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uncaptured python exception error with asyncore
by kosh＠aesaeion.com 20 Nov '01

20 Nov '01

I got this in my STUPID_LOG_FILE as an error zope had right before it died however I am not sure how it can be fixed so that it doesn't happen again. What is strange is that zope did not truly die instead it lived on for a while and eventually killed all connection handling. I had to actually kill it manually to get it to stop and then restart it. Zope 2.3.3 Python 1.5.2 Redhat 7.1 At the same time it gave that error message the Z2.log recorded a few hundred grabs at the same two images on the server by one client. It appears zope did continue to work for a little while after that but from what I can tell of other users it performance degraded steadily until it just stopped handling requests. I would appreciate any suggestions you could make so that I can provide enough information to get this bug tracked down and killed. ERROR(200) ZServer uncaptured python exception, closing channel <zhttp_channel connected xxx.xxx.xxx.xxx:1329 at 89ce8a8 channel#: 521 requests:1> (socket.error:(104, 'Connection reset by peer') [/home/zope/Zope-2.3.3-src/ZServer/medusa/asynchat.py|initiate_send|211] [/home/zope/Zope-2.3.3-src/ZServer/medusa/http_server.py|send|399] [/home/zope/Zope-2.3.3-src/ZServer/medusa/asyncore.py|send|282]) Designing the webpages of tomorrow http://webme-eng.com Designing the MMORPGS of tomorrow http://worldforge.org

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Another Signal 11 Question
by Alex Kelly 19 Nov '01

19 Nov '01

I too have been having a lot of restarts with error code 11. After reading some other comments relating to this, I recompiled Python 2.1.1 with the "--without-pymalloc" option. I have not yet seen any problems from doing this, but my questions are: Is this the preferred method to fix the Sig 11 restarts? Are there any other options? Are there any consequences to running zope without py_malloc? Thanks, Alex Kelly

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How to render DTML that is not stored in the ZODB?
by Dario Lopez-Kästen 19 Nov '01

19 Nov '01

Hello! I have a bunch of dtml in my Oracle DB, that I of course want to render. doing the <dtml-var expr="_.getitem('<column_name>', 1)"> does not work. I essence Zope does not render strings in variables to DTML. Any suggestions? (It has to be DTML) *MANY* Thanks In Advance. /dario - -------------------------------------------------------------------- Dario Lopez-Kästen Systems Developer Chalmers Univ. of Technology dario(a)ita.chalmers.se ICQ will yield no hits IT Systems & Services

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Re: [Zope-dev] How to render DTML that is not stored in the ZODB?
by Dario Lopez-Kästen 19 Nov '01

19 Nov '01

> > My suggestion would be to create a very thin wrapper class in Python for > DTMLFile and use the advanced tab of the ZSQLMethod to make each row into a > DTMLMethodish type thing. > > See: > > http://www.zope.org/Documentation/Guides/ZSQL-HTML/ZSQL.1.4.6.4.html Thanks, I'll look into that later on. For now, since I am under time-preassure, I opted for _.string.replace()... Thanks again, /dario

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Idea: User Product Folder
by Casey Duncan 19 Nov '01

19 Nov '01

This is more of an idea than a proposal at this point, so I thought I would post it here for discussion. There is a fishbowl project for creating an automated Product installation system. Something like Debian and FreeBSD have. Now, one of the issues that has been raised is whether you could make it so that Products could be installed TTW. As it stands right now, that is not possible since the Zope system user generally would not (and should not) have write access to the Products directory. It also seems there is some doubt as to the merit of TTW product installation. Well, speaking from a human interface perspective, I think a TTW interface for product management would be a good thing[tm] and could be a "bullet point" feature for zope. It would also be useful in making Zope slightly easier for hosting services to deal with. You wouldn't have deal with the shell and therefore it would be greatly more accessible. It would also make "trying out zope" easier and more fun for newbies and damn it, making Zope more fun is what I'm all about 8^) This morning I thought of one potential solution to this whole Product folder write access thing. There needs to be two types of product folders. The standard type, which would continue to work as we have come to know it and a "User Product" directory which would be writable from inside Zope. Now there would be at least two important restrictions on products in the "User Product" directory: 1. Installation of a User Product could not add or change files in the Zope core. 2. User Products can not "Monkey Patch" Zope. Restriction 1 is implicit and doesn't take any additional steps other than setting the Zope lib directory read-only from inside Zope. Restriction 2 is there to protect against trojan products that could easily expose restricted methods and attributes to the web or create deliberate security holes. Now obviously this doesn't prevent this from happening other ways, so this may not be sufficient. How to impose this restriction is not entirely clear to me, but it seems that there should be some way to do it in Python 2.2. Another possible but more severe restriction would be that "User Products" could not access certain attributes like "aq_base" or the like and would be subject to stringent security checking on attribute access. Whether that would be necessary I guess is one of the points of this discussion. Again, we may have to wait for Py 2.2 to make this happen. Now, once there is a "User Products" folder an infrastructure would need to be setup so that products could be downloaded in installed TTW. But that is another story... Whaddaya think? /---------------------------------------------------\ Casey Duncan, Sr. Web Developer National Legal Aid and Defender Association c.duncan(a)nlada.org \---------------------------------------------------/

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