November 2004 - Zope

Running Zope 2.6 & 2.7
by John Poltorak 09 Nov '04

09 Nov '04

In the process of migrating from 2.6.2 to 2.7.3 can I run both versions temporarily? If so how? -- John

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adding properties trough pythonscript
by rv000299 09 Nov '04

09 Nov '04

Hi all, I have some problems adding properties trough a python script def publishcontainer(container,path): ov=map(lambda x:(x.id,x), container.objectValues()) ov.sort() for (oid,obj) in ov: if not (hasattr(obj,"isPortalContent") or obj.isPrincipiaFolderish): continue id="" if hasattr(obj,"isPortalContent"): print "ID: ",path+"/"+str(obj.id) try: context.manage_addProperty('prop', 0, 'boolean') print "prop added<br>" except: print "adding prop to",str(obj.id),"failed<br>" if hasattr(obj,"objectValues"): print publishcontainer(obj,path+"/"+str(obj.id)) return printed The problem is not getting the property added, it does, but editing it afterwards in the ZMI is impossible. When I hit the Properties tab of the item, the newly added property is not on the page. However when I call the prop with a dtml-var it is rendered. I'm at a loss here. Can someone help me out? Roel ----------------------------------------------------- Make cheaper and longer calls thanks to Scarlet Phone More info at http://www.scarlet.be/nl/consumer/phone/

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RPCAuth again
by David Cake 09 Nov '04

09 Nov '04

OK, I asked previously about installing RPCAuth on Debian. I got no useful responses (thanks to Tres Seaver for passing my message on to the author, but they didn't get back to me). There is basically no documentation on this product, couldn't get it to install on either zope 2.7 on Debian (apparently stops entire zope instance from working) or Mac OS X (just never shows up - its in /Applications/Plone2/Sites/Default/Products/ along with other products, but can't see any evidence Zope knows its there). So, anyone managed to install this product, or know how to debug installation problems of this kind? I'm having a very mixed experience with Zope/Plone - I either get a lot done in a short time, or things don't work and I get stopped dead, with very little documentation or help as to how to proceed. Regards David

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Re: Application Design and Photos
by Gregor Melhorn 09 Nov '04

09 Nov '04

Hello zope-users, thank you very much for your suggestions! I thought about it for a while, and the following solution came to my mind :-) First: Speed is critical to the site, since there may be several thousand users online at the same time. What about using the extImage Product, letting apache serve the content from an external image repository? So Zope only serves image urls. This should be way faster than letting serve Zope the images all by itself. For security, I thought of creating a separate directory for each user containing the user's photos. Directorys are configured to not be listable by anonymous users via apache. Every filename is a random string with at least 30 characters, so guessing the files should be impossible. For added security: I don't know if there is some kind of apache rule that allows locking out ips that tried to guess files, therefore generating a lot of 404s. Security could further be improved by checking the referrer in the rewrite rule, which is used by extImage. Also it would be possible to set a cookie at the gallery page, and checking the cookie in a rewrite rule. This would prevent authenticated users from linking directly to the images (and therefore allowing unauthorized access). Not 100% secure, but should be difficult for everyone that doesn't know how to fake a cookie and modify his referrer = the average user). What do you think about that solution? Thanks for your help!!! Gregor

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RE: [Zope] Python question
by Laura McCord 09 Nov '04

09 Nov '04

Ok, I think I found the solution. I should be using file.seek(0,0) to return to the start of the file before I perform the add PloneExternalFile process. Thank You for your help. -Laura -----Original Message----- From: Andreas Jung [mailto:lists@andreas-jung.com] Sent: Tuesday, November 09, 2004 9:35 AM To: Laura McCord; Andreas Jung; zope(a)zope.org Subject: RE: [Zope] Python question --On Dienstag, 9. November 2004 9:21 Uhr -0600 Laura McCord <Laura.McCord(a)doucet-austin.com> wrote: > From: Laura McCord <Laura.McCord(a)doucet-austin.com> > To: Andreas Jung <lists(a)andreas-jung.com>, zope(a)zope.org > Subject: RE: [Zope] Python question > Date-Sent: Dienstag, 9. November 2004 16:21 Uhr > > Andreas, > > I used what you recommended but now when I try to view the uploaded > file it comes up blank. Is there a step that I am not doing? > errormsg = 'Failure: File exceeds size limitation of 30MB' > This looks like some upload limit in ExtFile or whatever. At least this is not coming from Zope and not from Plone. -aj

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RE: [Zope] Python question
by Laura McCord 09 Nov '04

09 Nov '04

Andreas, I used what you recommended but now when I try to view the uploaded file it comes up blank. Is there a step that I am not doing? spaceAvail = context.Availability() data = file.read() fileSize = len(data) fileSize = (fileSize/1024)/1024 if spaceAvail < 80: if fileSize < 30: sizeTest = context.getDirectories('/var/www/html/da') if sizeTest > 900: message = 'Failure: No available disk space, see system administrator' return ('failure', new_context,{'portal_status_message':message}) else: test = new_context.manage_editPloneExternalFile(title = title,file = file,REQUEST = REQUEST) if not test: return ('success', new_context,{'portal_status_message':context.REQUEST.get('portal_status_ message', 'Content updated.')}) else: return ('failure', new_context,{'portal_status_message':test}) else: errormsg = 'Failure: File exceeds size limitation of 30MB' return ('failure', new_context,{'portal_status_message':fileSize}) else: errormsg2 = 'Failure: No disk space available in /var directory' return ('failure', new_context,{'portal_status_message':errormsg2}) Thank You, Laura -----Original Message----- From: Andreas Jung [mailto:lists@andreas-jung.com] Sent: Monday, November 08, 2004 11:16 AM To: Laura McCord; zope(a)zope.org Subject: Re: [Zope] Python question --On Montag, 8. November 2004 11:10 Uhr -0600 Laura McCord <Laura.McCord(a)doucet-austin.com> wrote: > I am writing a Python Script and I am trying to get the size of an > uploaded file. Does anyone know what I should use? I thought that I > could use len() but I was getting an error using it. data = uploaded_file.read() print len(data) *must* work. -aj

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Zope X3 install
by John Poltorak 09 Nov '04

09 Nov '04

I ran 'make install' but don't see anything in /usr/local/Zope3 - my specified home. No error msgs were produced. Is there a log or can I generate some msgs to give me some indication of what has gone wrong? Am I correct in assuming that ZopeX3 should run on any platform supported by Python 2.3.4? -- John

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Re: Zope Digest, Vol 6, Issue 9 - Zope 3 Book
by Yuri 09 Nov '04

09 Nov '04

>Message: 3 >Date: Sun, 07 Nov 2004 19:08:56 +0100 >From: j?rgen Kartnaller <j.kartnaller(a)cable.vol.at> >Subject: [Zope] Re: Zope X3 3.0.0 final released >To: zope(a)zope.org >Cc: zope3-dev(a)zope.org >Message-ID: <cmloc9$luq$1(a)sea.gmane.org> >Content-Type: text/plain; charset=ISO-8859-1; format=flowed > >Thank you very much for this great tool. > >It is amazing how easy I can do things now. > >Actually I'm using Zope 3 to do serial letters. >I can do it faster with Zope 3 than I can do it with word !!!!! > >I got all my knowledge from Stephan Richters great book, thanks for that >too. > > Where can I find this book? :) Others guide about Zope 3?

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Calling superclass methods from inside a Zope object
by Marco Bizzarri 09 Nov '04

09 Nov '04

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all. We've a problem with a class like this: class MyObject(CatalogPathAware, SimpleItem): ~ def manage_afterAdd(self, item, container): ~ CatalogPathAware.manage_afterAdd(self, item, container) ~ ## other stuff here ## The problem is that MyObject apparentely does not have any visibility of the superclasses methods, if they came from some non Zope class (like the CatalogPathAware, and therefore the manage_afterAdd crashes. Any hint on this? The environment is Zope 2.6.4. Regards Marco -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFBkK4SXhfyAQQVoaIRAh2SAKCYGu9IZmJ6aIlZJKyToNZsogF9LwCfVBjJ 29u6eYaHbfSOUGInbIRYmCY= =vOOy -----END PGP SIGNATURE-----

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how to isolate a grave problem with zope
by Jonas Meurer 09 Nov '04

09 Nov '04

hello, we have some grave problems with zope 2.6.4: it crashes every time we put it under (some) heavy load, especially at one process, a convertion process. i tried to reproduce this bug in exactly the same installation on my home machine, but this finally doesn't work. on the machine where we encounter the problem, the problem appears in _all_ installed zope instances, which means: 5 instances from debian/testing packages of zope 2.6.4 with python2.2 1 instance from source installation of zope 2.6.4 with python2.2 1 instance from source installation of zope 2.6.4 with python2.1 to produce the bug, i have to install TinyTablePlus (as our Products depends on it), and some other own Products, but they are also installed on my local server, which doesn't crash. I stripped the Products Directory of zope down to native zope products and TinyTablePlus, used a fresh new installation of zope, and imported only 5 needed Products into Control_Panel/Products plus the one Application that does the convertion. on all 7 instances at our server zope get's crashed by the process, on my local machine, and even on windows zope servers it doesn't. i use everywhere exactly the same zope/tinytableplus versions, and my local system runs debian/unstable while the server runs debian/testing. python versions and installed modules of home and server are also synced. do you have any suggestions how to continue debugging, and how to isolate the problem? maybe there are some more components that could cause this crash, than just python (modules) and zope itself. bye jonas

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