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ZEO 0.2.1 doesn't work with Zope 2.2.1 FileStorage
by Jim Fulton 10 Aug '00

10 Aug '00

There is a bug in ZEO 0.2.1 which was made effective by Zope 2.2.1 (which has just beed released in beta). I plan to release ZEO 0.2.2 shortly, which fixes this bug. If you are using ZEO, please hold off of using Zope 2.2.1 (or an up-to-date Zope public CVS) until you can install ZEO 0.2.2. Jim -- Jim Fulton mailto:jim@digicool.com Python Powered! Technical Director (888) 344-4332 http://www.python.org Digital Creations http://www.digicool.com http://www.zope.org Under US Code Title 47, Sec.227(b)(1)(C), Sec.227(a)(2)(B) This email address may not be added to any commercial mail list with out my permission. Violation of my privacy with advertising or SPAM will result in a suit for a MINIMUM of $500 damages/incident, $1500 for repeats.

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Re: ZEO and 2gb max limit for linux .. not for solaris etc.
by Jørgen Skogstad 10 Aug '00

10 Aug '00

Sven Hohage wrote: > > Hallo Jorgen, > I write you cause I've got a question about Zope. > You've posted on the mailing list on my question with the filesize of > the data.fs or in ZEO ZSS. > My problem is that I'd like to know which Unix - versions don't have > this filesize limitations and if there is a linux version without that > limit. > Or do you know another way to solve this problem?? > Many thanks > Sven Hmm.. well .. I can tell you what I know as of today. Linux has this limitation as of today. At least all the variants I have come over (mostly Red Hat and Suse). The limitation is in the filesystem implementation itself; meaning that the number of "references" that can be created cannot exceed the address limit of 2gb. Solaris does not have this limitation and neither does Hp-Ux or SGI Irix. I know previous versions of SunOS (v4.x) had the same limitation as linux is experiencing today. Though.. there are ways "around" the problem. Though; all different over the variuos unix versions as of today. When running Zope you really don't have much choice on linux. When you hit the 2gb barrier .. you have problems. I have not tried it .. but as I can recall there was a product for Zope that made it possible to "mount" several databases at once .. though it was beta. .. this might solve a problem .. and would from my point of view be a nice way to go. This way; the administrator of the system also have some choices as to where he want to put his data. Then you can move certain object databases to fast storage .. and so forth. .. so; if you have those problems; get Solaris v7/v8 for Intel (or if you can afford it-> sparc!) .. and run Zope of that. I do so .. but then again; I am not near the 2gb barrier that many people have come over. ;) .. on the other hand; I am not aware of the various "beta" filesystem implementations and kernel "to-do"'s for linux, but I suspect that it will not be long before that problem is solved. .. oh! When I think of it.. SGI has ported their XFS to linux. Not sure how far that implementation has gone yet.. but the link to check out is; http://oss.sgi.com/projects/xfs/ Looks promising.. and a "production" like filesystem for linux is a "must" as far as I can see. ;) Just read the brief here; Sub-second filesystem recovery after crashes or power failures (never wait for long fscks again) 64-bit scalability: millions of terabytes, millions of files, and a million files per directory (no more 2 GB limits) High reliability and performance from journaling and other advanced algorithms Hope that helped a bit?? .. just shoot if there's more I can help with! ;) -- Med vennlig hilsen, Jørgen Skogstad /\ System Specialist \\ \ \ \\ / Sun Microsystems AS / \/ / / Gjerdrums vei 12 / / \//\ N-0486 Oslo, NORWAY \//\ / / / / /\ / Phone: + 47 22 02 39 00 / \\ \ Cellular: + 47 92 41 30 23 \ \\ Fax: + 47 22 02 39 99 \/ EMail: jorgen.skogstad(a)Norway.Sun.Com Web: www.sun.no BTW; Opinions formed by myself in informal mailings are mine and not of my employer.

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Re: [Zope] ZClass inheriting from image question
by Meeting Maker Webmaster 10 Aug '00

10 Aug '00

Hello, At 16:31 10.08.2000 +0000, Kapil Thangavelu wrote: > > I am still working on my "users preferences" I mentioned earlier. For now >I > > will stay with the standard acl_users as they seem to offer everything I > > currently need to authenticate the user. On the other side, I am creating >a > > new ZClass that will be used to store the user information in properties. > > As I finally also want to store the picture of the user, I decided to > > create ZClass that will subclass _ZClass_for_Image. > > > > I want to change the default way the ZClass renders it's information. I > > want more than simply a picture so I crated a new method "index_html" in >my > > ZClass. > > > > My question is: How do I display the picture from this index_html method? > >from the Image.py file > ><dtml-var tag> should do it This doesn't work. The problem is that <dtml-var tag> returns the <IMG ...> tag using the object name. Well if it does that, it will use the content of index_html, resulting in an error. Thank you. Best regards, Gérard Métrailler Jr. Meeting Maker Inc. ... the intelligent choice for collaborative scheduling Email: webmaster(a)meetingmaker.com Web: http://www.meetingmaker.com

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ANNOUNCE NewsCenter 0.0.5
by Kapil Thangavelu 10 Aug '00

10 Aug '00

A week's worth of hacking to present NewsCenter. I'll bump of the version numbers once I get a few more features and get some feedback from the community regarding any fixes and pretty up the interface. Its stable for me and works well. Thanks to Amos and Shane of DC for contributing (RSSChannel, XMLDocument) and (BTreeFolder) respectively without which I wouldn't have been inspired to make this Product. location: http://www.zope.org/Members/k_vertigo/ZopeProducts/NewsCenter >From The Readme NewsCenter is a Zope/XML application that aims to be a resouce for Zope sites to allow their users access to the latest headlines from around the world on many different topics. It would like to bring order to this mass of information by making it searchable and displayed in a format that is easy to navigate and also allow users to have email syndication of channels that they are interested in. NewsCenter's news acquisition is based on the import of aggregate channel listings in a variety of xml formats. NewsCenter was designed for site managers to individually publish channels contained within a channel list. Furthermore because of performance considerations when importing a large number of channels or a large channel list it has options for the xml files to be loaded from the file system as opposed to the default settings which obtains them directly from the web. <b>Current Status:</b> - NewsCenter supports aggregate channel lists in the ocs format. - NewsCenter supports channels in the RSS.91 format - i've imported over 750 channels using ocs files from http://www.xmltree.org (1.1M) http://www.xmltree.com/export/ocs.cfm and http://www.moreover.com (768K) http://www.moreover.com/categories/ocs/ocsdirectory.rdf Btw. next on the todo list is add ZCatalog searches and meerkat channels (http://www.oreillynet.com/meerkat) REQUIRES- Zope-2.2, BTreeFolder, XMLDocument, PyXML Package(sourceforge) http://www.zope.org/Members/hathawsh/BTreeFolder/ http://www.zope.org/Products/XMLDocument http://sourceforge.net/project/?group_id=6473 INSTALL- untar in your zope directory LICENSE- LGPL for everythin except for the dcRSSChannel(dublin core) which is ZPL'd please email me any feature request, comments, bugs, patches, yahtzee:) Cheers Kapil

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gif getting dumped...
by Daniel Rusch 10 Aug '00

10 Aug '00

Hey all, I know this isn't exactly a zope question, but it is occuring in my zope site so here goes: I have a gif file (a company logo) that I use on pdf files. The pdf's are created by a python app that I wrote which uses report lab. This python app is called from my zope site. Everything works great until the nightly back up of the database (Oracle). The cron job shuts zope down, backs up the db and then restarts zope. the problem is that the logo (the gif) doesn't get reloaded. so every morning I have to bounce zope to reload the gif. I have determined that the shuting down and restarting of zope is not the problem but it appears that it is the oracle backup. Any thoughts, DR

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SECURITY: Zope security alert and hotfix product...
by Brian Lloyd 10 Aug '00

10 Aug '00

Hi all - We have recently become aware of an important security issue that affects all released Zope versions prior to 2.2.1 beta 1. The issue involves the fact that the getRoles method of user objects contained in the default UserFolder implementation returns a mutable Python type. Because the mutable object is still associated with the persistent User object, users with the ability to edit DTML could arrange to give themselves extra roles for the duration of a single request by mutating the roles list as a part of the request processing. While we know of no instances of this issue being used to exploit a site, we *highly* recommend that any Zope site running versions of Zope prior to 2.2.1 have this hotfix product installed to mitigate the issue if the site is accessible by untrusted users who have DTML editing privileges. A hotfix for this issue in the form of an add-on Zope product has been made available on zope.org. To install the hotfix, simply download and install the package as you would any other Zope add-on product (extract it in the root of your Zope installation). Remember to restart your Zope installation for the hotfix to take effect. http://www.zope.org/Products/Zope/Hotfix_08_09_2000/Hotfix_08_09_2000.tg z The hotfix will work for all versions of Zope 2.0 and higher. The forthcoming Zope 2.2.1 beta 1 release will contain the fix for this issue, and you be able to uninstall the hot fix after upgrading to 2.2.1 beta 1 or higher (though nothing bad will happen if you don't uninstall it). Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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Why is 'Shutdown' an Error?
by William BC Crandall 10 Aug '00

10 Aug '00

Another start-up question. Why does the Control Panel "Shutdown" button generate an Error: Zope Error Zope has encountered an error while publishing this resource. exceptions.SystemExit Zope has exited normally. Traceback (innermost last): File C:\Program Files\TotipotentZope\lib\python\ZPublisher\Publish.py, line 222, in publish_module File C:\Program Files\TotipotentZope\lib\python\ZPublisher\Publish.py, line 187, in publish File C:\Program Files\TotipotentZope\lib\python\ZPublisher\Publish.py, line 171, in publish File C:\Program Files\TotipotentZope\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: manage_shutdown) File C:\Program Files\TotipotentZope\lib\python\ZPublisher\Publish.py, line 112, in call_object (Object: manage_shutdown) File C:\Program Files\TotipotentZope\lib\python\App\ApplicationManager.py, line 383, in manage_shutdown (Object: ElementWithAttributes) SystemExit: 0

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Splitting ZSQL results across pages
by John Morton 10 Aug '00

10 Aug '00

I'd like to split the output of a ZSQL query across different instances of a page in the same fashion as zope.org does with ZCatalog output, but I can't for the life of me find any documentation on how it's done. Does anyone know the magic incarntations or where the documents are? Thanks, John

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ZClass inheriting from image question
by Meeting Maker Webmaster 10 Aug '00

10 Aug '00

Hello, I am still working on my "users preferences" I mentioned earlier. For now I will stay with the standard acl_users as they seem to offer everything I currently need to authenticate the user. On the other side, I am creating a new ZClass that will be used to store the user information in properties. As I finally also want to store the picture of the user, I decided to create ZClass that will subclass _ZClass_for_Image. I want to change the default way the ZClass renders it's information. I want more than simply a picture so I crated a new method "index_html" in my ZClass. My question is: How do I display the picture from this index_html method? Thank you for your help. Gérard Métrailler Jr. Meeting Maker Inc. ... the intelligent choice for collaborative scheduling Email: webmaster(a)meetingmaker.com Web: http://www.meetingmaker.com

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Wrap or not wrap i Zope source
by Peter Bengtsson 10 Aug '00

10 Aug '00

[ I posted this query to the zope-dev mailing list at the begining of this week, but with no response. Maybe my friends at the zope mailing list can help me before I crash my Zope installation. ] What I want to do is simple. But doing it can be tough. Modify the source of Zope so that one can select either wrap=off or wrap=virtual in the textarea box of the documentEdit.dtml I bet you all recognize these HTML bits (documentEdit.dtml): <INPUT NAME=SUBMIT TYPE="SUBMIT" VALUE="Taller"> <INPUT NAME=SUBMIT TYPE="SUBMIT" VALUE="Shorter"> <INPUT NAME=SUBMIT TYPE="SUBMIT" VALUE="Wider"> <INPUT NAME=SUBMIT TYPE="SUBMIT" VALUE="Narrower"> And I want to add: <INPUT NAME=SUBMIT TYPE="SUBMIT" VALUE="Change Wrap">  This submitbutton should trigger the simple following DTML (documentEdit.dtml): <dtml-if wrap_or_not> WRAP="virtual" <dtml-else> WRAP="Off" </dtml-if> I have checked the python source, but I'm definitly not a wiz or very good with OOP. The documentEdit.dtml document "actions" the form to manage_edit() found in DTMLDocument.py and DTMLMethod.py: def manage_edit(self,data,title,SUBMIT='Change',dtpref_cols='50', dtpref_rows='20',REQUEST=None): """ Replaces a Documents contents with Data, Title with Title. The SUBMIT parameter is also used to change the size of the editing area on the default Document edit screen. If the value is "Smaller", the rows and columns decrease by 5. If the value is "Bigger", the rows and columns increase by 5. If any other or no value is supplied, the data gets checked for DTML errors and is saved. """ self._validateProxy(REQUEST) if self._size_changes.has_key(SUBMIT): return self._er(data,title,SUBMIT,dtpref_cols,dtpref_rows,REQUEST) self.title=str(title) if type(data) is not type(''): data=data.read() self.munge(data) if REQUEST: message="Content changed." return self.manage_main(self,REQUEST,manage_tabs_message=message) The _er method is found in DTMLMethod.py def _er(self,data,title,SUBMIT,dtpref_cols,dtpref_rows,REQUEST): dr,dc = self._size_changes[SUBMIT] rows=max(1,atoi(dtpref_rows)+dr) cols=max(40,atoi(dtpref_cols)+dc) e=(DateTime('GMT') + 365).rfc822() resp=REQUEST['RESPONSE'] resp.setCookie('dtpref_rows',str(rows),path='/',expires=e) resp.setCookie('dtpref_cols',str(cols),path='/',expires=e) return self.manage_main( self,REQUEST,title=title,__str__=self.quotedHTML(data), dtpref_cols=cols,dtpref_rows=rows) I GUESS that it is in this method I do my changes (together with parameters in manage_edit() [DTMLDocument.py and DTMLMethod.py]) Maybe something like this: if wrap_cookie is 'off': resp.setCookie('wrap_cookie','virtual',path='/',expires=e) newwrap_status='virtual' else: resp.setCookie('wrap_cookie','off',path='/',expires=e) newwrap_status='off' ...and... return self.manage_main( self,REQUEST,title=title,__str__=self.quotedHTML(data), dtpref_cols=cols,dtpref_rows=rows,wrap_or_not=newwrap_status) I don't dare to do anything yet, because I feel a bit unfonfy about changing source at this level. Can you please give me some hints or advice or maybe you already have this done. Peter Bengtsson - bloody good programmer [ do I dare to keep my funny signature after this email? ]

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