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Re: [Zope] MORE Big things at Digital Creations
by addyd＠unk.edu 05 Feb '00

05 Feb '00

> P.S. - Our team now boasts: John P, John O, Rob P, Rob M, Bob S, Mike P, > and Mike P What's up with that!? We're going to need AOL-style email > addresses soon! :^) Just to keep it simple, call them all "Bruce". http://humorlinks.com/python/sketches/TheBruces.htm A classic. And oh, how appropriate! :>) Darren Addy University of Nebraska at Kearney Satisfied with a (finally) successful, secure installation of Zope and wondering what he should do next...

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looking for mailhost doc
by Gijs Reulen 05 Feb '00

05 Feb '00

Hello I would like to use the Zope MailHost for receiving, processing and storing preformatted (maybe XML) email. Is that possible ? I cannot find any docs on the mailhost; where should I look ? Gijs

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Python based ZClass Questions
by James W. Howe 05 Feb '00

05 Feb '00

I've been playing around with ZClasses. I've created thin Python classes to use as a base class for my ZClass. I have a couple of questions regarding the best way to make use of this base class, however. First, if I create a Python base class, should I use it to control the the collection of base classes used by my ZClass? For example, suppose that I originally create a ZClass which has a base of MyPythonBase. Suppose that MyPythonBase does not inherit from something like ObjectManager. Later I decide that my ZClass needs to have ObjectManager behavior. Can I modify my base class to now inherit from ObjectManager? Second, if I define my base class inheritance from the ZClass definition interface, when I define new ZClasses which inherit from my Python base class, should I put my base class first in the list of base classes or last? If I understand how inheritance works, attributes are searched depth first, left to right. I believe this means that if I wanted to override some behavior of one of the other inherited classes, I would have to have my class first. What are the pros and cons of having my base class first or last? Finally, I've noticed that when a ZClass is defined, a predefined set of "views" are created for the object. For example, the "Contents" view might have "manage_main" and something else defined as available view methods. If methods are added to the ZClass, they show up in the list. If I wanted to define some new methods at the Python level, what do I need to do to have them show up in the view list? For example, suppose that I create a subclass of Folder and I want to have an alternative way to view the my folders contents. I can think of two ways to make this work. First, make sure that my base class is first in the inheritance list and then override the definition of something like "manage_main", substituting my DTML code for the standard DTML code. Alternatively, I could define a new method in my ZClass which has the DTML code I desire. What I'd like to know is how I could define a new method in my Python code and have it selectable as an available view. Thanks. James W. Howe mailto:jwh@allencreek.com Allen Creek Software, Inc. pgpkey: http://ic.net/~jwh/pgpkey.html Ann Arbor, MI 48103

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usergroup Netherlands
by Gijs Reulen 05 Feb '00

05 Feb '00

Hello On the Zope site is a reference to usergroups (http://www.zope.org/Resources/UserGroups) and one of them is supposed to be in my own country: 'Zope in the low countries' but that link leads nowhere special. Can anybody tell me if the usergroup is still alive ? Gijs Reulen

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Photo and ZPhotoAlbum 0.4.3 beta
by Andrew Lahser 05 Feb '00

05 Feb '00

With respect to the Zope Photo product, thank all of you for your suggestions and bug reports. All of your suggestions, including customizable default displays, are now part of the Photo and ZPhotoAlbum product. You can find the latest beta version at http://www.zope.org/Member/Drew/Photo. Also, I now have ZPhotoAlbum working on a production site. http://www.jpdesserts.com. As always, I welcome your further suggestions. Just before this last release, I did some experimentation with PIL vs. other open source image manipulation tools. PIL seems to have two negative effects when resizing. First, moire artifacts are subtle, but apparent. Second, the scan that PIL does introduces some blur, as do all scaling tools, but PIL does a lackluster job of applying a sharpening filter after a resize. The net effect is that images resized by the Photo product are not nearly as good as those done by Imagemagick. Additionally, Imagemagick has several features that would be nice to include with Photo, but would not be available with PIL. Foremost is support for FlashPix, which several of you have requested. The downside is that Imagemagick is slower. Interfacing with Imagemagick would be done through the command line, so the PIL libraries would not be needed by Photo, but the Imagemagick "convert" program would have to be available in the path of the user that runs Zope. The swig and native python interfaces to Imagemagick are a bit immature, and we really only need image manipulation during upload, so the command line interface won't have too much downside. Moreover, I think Photo would be easier to install, because the broken product syndrome that comes with installing PIL would not occur. That is a good summary of the issues. Before converting Photo over to Imagemagick, I want to get your input. I see much more positive than negative, but I want to be sure that I have the whole picture. The upside of all of this is that I now know more about online digital imagery than I ever wanted to know. I want to put the ZPhotoAlbum product behind me, but I also want the highest quality for my websites. Your opinion really matters, so please take a minute and send me your impressions. Thanks for your support. "Drew" andrew(a)apl-software.com

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Malicious HTML in (Squishdot) postings
by Squishdot 05 Feb '00

05 Feb '00

Hi all, CERT has issued a security advisory regarding improperly checked output from dynamic pages. The CERT advisory can be found at: http://www.cert.org/advisories/CA-2000-02.html. Unfortunately, Squishdot is vulnerable to such problems. However, I (and others in the Zope community) am trying to find a permanent solution to this. Of course, your help is also welcome (code patches accepted :^)) While each site (e.g. depending on the audience, accessibility, amount of traffic) is vulnerable in varying degrees to these types of problems, I would urge each administrator to evaluate their own security policies regarding these problems and take steps appropriate for their own circumstances. In the meantime -- temporarily -- the best way to deal with the problem is to turn moderation on for everything, and then properly check each posting manually. Regards, Butch ===== Butch Landingin Squishdot maintainer http://squishdot.org squishdot(a)yahoo.com __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com

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acquisition in the Product hierarchy?
by Darran Edmundson 05 Feb '00

05 Feb '00

Consider the following. I have 2 ZClasses (n1 and n2) nested within a container Zclass (c) created within a product (p). My addForms for n1 and n2 (call them a1 and a2) are quite complicated but share a lot of code. The obvious solution? Move this duplicated code to a single DTML method (call it shared) and use acquisition to give a1 and a2 access to this code snippet. Just to make sure we have the same mental picture, here's the hierarchy (where indentation implies what children are visible when "clicking" on the parent): Zope Root Control Panel Products p c n1 n2 a1 a2 shared If c was a folder outside the Product hierarchy, then adding shared in the location shown *would* give a1 and a2 access via acquisition. However, within the Product hierarchy, it doesn't. a1 and a2 only acquire shared if I move it up to the level of "c". Why is this? Am I missing something obvious? Just when I think I am coming to grips with Zope ... Cheers, Darran.

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where to find help on manage_clone, etc
by danny shevitz 04 Feb '00

04 Feb '00

I'm as big a newbie as you'll find. I'm working through the tutorial and have come across manage_clone. I also notice in my web browser, there are lots of manage_...'s. How or where do I find help on these functions? I've searched the documentation but have come up blank. I'd sure like to see a help document these functions. thanks, Danny __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com

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MORE Big things at Digital Creations
by Rob Page 04 Feb '00

04 Feb '00

Hello everybody! Good things continue to happen in the Zope community at large and at Digital Creations in particular. The latest COOL thing is a new office in Rochester, NY. The Rochester office will be staffed initially by: o John Platten (mailto:jplatten@digicool.com) o Robert Mead (Rob) (mailto:rbmead@digicool.com) o Bob Shaw (mailto:bshaw@digicool.com) These gentlemen are software professionals in every meaning of the word and we are lucky to have them aboard! Our Rochester office will contribute to both consulting and infrastrucure projects. Naturally, the the Rochester office is well positioned to provide ongoing service and support to our customers in Rochester, NY and throughout the northeastern US. Here's some background on these guys: John Platten -------- John is the Official Rochester Cat Herder. John is a huge fan of both Python and Zope and recently worked on a markup translator for a well-known information services company using Python, C, and C++.. Rob Mead -------- Rob's been doing software development for about 10 years -- mostly in humongous companies. Rob's frustration factor pegged out one day late last year. Instead of "Going Postal" :^) he decided he'd had enough and decided to join the Digital Creations team to achieve world domination. Rob is also a Python Person and was on the same "markup translator" team as John Platten. Bob Shaw -------- Bob has been doing software for almost 20 years. His expertise is primarily in Unix, C and real-time systems. Most recently he was involved in the development of a commercial natural language processing query engine for an Internet company. Please join me in welcoming John, Rob and Bob to the Digital Creations team!!! --Rob P.S. - Our team now boasts: John P, John O, Rob P, Rob M, Bob S, Mike P, and Mike P What's up with that!? We're going to need AOL-style email addresses soon! :^) -- Rob Page V: 540.371.6909 Digital Creations, Inc. F: 703.995.0412 -- ... The Leader in Open Source Web Development ... ... Don't miss Zope! http://www.zope.org ...

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RE: [Zope] Re: newbie questions about security
by Chris McDonough 04 Feb '00

04 Feb '00

Well, in any case, welcome to Zope! > -----Original Message----- > From: danny shevitz [mailto:danny_shevitz@yahoo.com] > Sent: Friday, February 04, 2000 3:51 PM > To: zope > Subject: RE: [Zope] Re: newbie questions about security > > > no, you aren't misunderstanding. You answered my question. I'm a > newbie, not just to zope but to web authoring as well. So I have and > answer to my question, and realistically, if a user can view the image > directly it's no big deal. > > It just seems a little weird that by definition you can > directly view a > company logo if it appears on a homepage. After this > discussion I guess > the question could be rephrased simpler as: is it possible to view an > image in another document, but not directly? > > thanks, > Danny > __________________________________________________ > Do You Yahoo!? > Talk to your friends online with Yahoo! Messenger. > http://im.yahoo.com > > _______________________________________________ > 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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