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Re: Zope 2.4 crashes -- possible fix identified, other solutions also suggested
by Stefano Noferi 21 Dec '01

21 Dec '01

Hi Matt and other zopers, thanks for your help. I've tested other combinations, also with Zope cvs unreleased version at cvs.zope.org, and the test script (province) run well if it's the only script in the ZODB. But inserting it in a CMF 1.1 skin, my Zope (2.4.x, 2.5.x, cvs version, with python 2.1,2.1.1,2.2b2 with and without pymalloc and cycle-gc) auto restart.. with a minor frequency.. but auto restart. The old zbytecode in 2.3.x PythonScripts can help us? It's possible to inactivate the RestrictedPython compiler in a Zope 2.4.x/2.5.x ? The security problem is under control for now (obviously, just for portal with predefined and secure contents editable by users). I think inactivation can be a solution for now, waiting for definitive, well running version of RestrictedPython engine. What do you think about? Bye, Stefano ---------------------------------------------------------- Stefano Noferi n o z e S.r.l. Soluzioni Open-Source Via Caduti del Lavoro, 32 56122 Pisa (PI) - Italy Tel: +39 (0)50 533320 Fax: +39 (0)50 526604 Email: stefano(a)noze.it Web: http://www.noze.it -= "Whatever you like it to be, it will be" =- ----------------------------------------------------------

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Re: [Zope-dev] disabling gc does not necessarily hide memory corruption
by Anthony Baxter 21 Dec '01

21 Dec '01

>>> Chris McDonough wrote > This behavior is with the patches to the compiler package that were the > genesis of this thread? No, prior to that. I posted something about it to zope-dev an age or six ago - it seemed like the RestrictedPython compiler had mungo mungo numbers of cycles, and we found we couldn't run a zeo client on a nogc python for more than about an hour. ah - here's the message I sent: Date: Wed, 17 Oct 2001 18:10:27 +1000 To: zope-dev(a)zope.org From: Anthony Baxter <anthony(a)interlink.com.au> Subject: RestrictedPython under no-GC 2.1 seems to leak a hell of a lot. Running current Zope 2.4 CVS under python 2.1 built --without-cycle-gc, I'm seeing an absolutely _enormous_ amount of leaked objects in RestrictedPython. This is on one of our ZEO clients, after 45 minutes of runtime. The deltas are after 5 minutes. RestrictedPython.compiler.transformer.Transformer 146527 163546 +17019 RestrictedPython.compiler.visitor.ASTVisitor 55842 62333 +6491 RestrictedPython.compiler.misc.Set 34827 38843 +4016 RestrictedPython.compiler.pyassem.FlowGraph 19173 21413 +2240 RestrictedPython.compiler.ast.Stmt 19174 21390 +2216 RestrictedPython.compiler.pycodegen.CodeGenerator 18333 20486 +2153 RestrictedPython.compiler.symbols.SymbolVisitor 15303 17096 +1793 RestrictedPython.compiler.ast.Name 13917 15542 +1625 RestrictedPython.compiler.ast.Const 14083 15691 +1608 RestrictedPython.compiler.ast.CallFunc 13798 15405 +1607 RestrictedPython.MutatingWalker.MutatingWalker 11968 13360 +1392 RestrictedPython.compiler.ast.Return 11986 13371 +1385 RestrictedPython.compiler.ast.Function 11986 13371 +1385 RestrictedPython.RestrictionMutator.RestrictionMutator 11800 13166 +1366 RestrictedPython.compiler.pycodegen.LocalNameFinder 11028 12322 +1294 RestrictedPython.compiler.pyassem.Block 10226 11401 +1175 RestrictedPython.compiler.pyassem.PyFlowGraph 9587 10707 +1120 RestrictedPython.compiler.misc.Stack 9587 10703 +1116 RestrictedPython.compiler.ast.Module 9590 10698 +1108 RestrictedPython.compiler.ast.Global 5761 6433 +672 RestrictedPython.compiler.ast.Assign 5761 6433 +672 RestrictedPython.compiler.ast.AssName 5761 6433 +672 [....]

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Precompiled binaries for Linux? (SuSE)
by Joachim Werner 19 Dec '01

19 Dec '01

Hi! I have tried to compile psycopg on a SuSE Linux 7.0 system, but it I simply cannot get it done. Do you have some precompiled binaries you could post? Thanks a lot in advance! Joachim Werner

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OpenOffice and Zope ??
by Dirk Datzert 19 Dec '01

19 Dec '01

Hi, has anybody integrated/plans on intragration/experimented with OpenOffice and Zope ? - OpenOffice as a HTML Editor / Web-Frontend for Zope or - OpenOffice as a HelperTool in the Background (external converter for MS Office Products) of Zope Special interests in turning excel-spreadsheets with diagramms (!) into searchable pdf and/or html with pics into Zope. Thanks Dirk

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RE: [Zope-dev] Can't access ZClass object unless superuser
by Joshua Lanza 19 Dec '01

19 Dec '01

Steve rocks! It wasn't actually the Ownership, but when I looked at the object I realized that I did not expose the Ownership tab, or the Security tab for the objects that I had created from the ZClass. When I created those views, I found that the permissions for the objects were not set correctly. I don't know how that happened, since I could not even see the permissions in order to edit them. I assume that they acquired those permissions from somewhere, but far better to see them make sure they're right. 'View' and acquire permissions had been disabled. Thanks again! Josh -----Original Message----- From: Steve Alexander [mailto:steve@cat-box.net] Sent: Tuesday, December 18, 2001 3:32 PM To: Joshua Lanza Subject: Re: [Zope-dev] Can't access ZClass object unless superuser Joshua Lanza wrote: > No, unfortunately, I haven't deleted any users. But thanks for > responding :) > > The permissions settings cascade downward through the directory > structure, so I would think that if I grant Anonymous every permission > in every folder and every method all the way down through the ZClass > definition and then do the same for the page that uses the ZClass, it > should allow Anonymous access. I'm using the latest stable release of > CMF and Zope on Windex, and not interacting with IIS at all. This looks like an ownership issue to me. I recommend that you ensure that each object you're having problems with is owned. Look on the "Ownership" tab and see whether it is owned. -- Steve Alexander

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RE: [Zope-dev] Can't access ZClass object unless superuser
by Joshua Lanza 18 Dec '01

18 Dec '01

No, unfortunately, I haven't deleted any users. But thanks for responding :) The permissions settings cascade downward through the directory structure, so I would think that if I grant Anonymous every permission in every folder and every method all the way down through the ZClass definition and then do the same for the page that uses the ZClass, it should allow Anonymous access. I'm using the latest stable release of CMF and Zope on Windex, and not interacting with IIS at all. Josh -----Original Message----- From: Steve Alexander [mailto:steve@cat-box.net] Sent: Tuesday, December 18, 2001 2:08 PM To: Joshua Lanza Cc: zope-dev(a)zope.org Subject: Re: [Zope-dev] Can't access ZClass object unless superuser Joshua Lanza wrote: > This must be a simple issue, but I can't get objects that I create > from custom ZClasses to be visible to Anonymous. In fact they are only > visible to the SuperUser. I have granted every permission I can find, > and tried every possible combination with proxy roles. > > I have wasted almost 2 days on this single issue and it's driving me > perfectly mad. It's the only thing I need to sell Zope to upper > management, but they're growing more impatient as I twiddle away more > and more hours searching for anything helpful on this. The whole > site's built, but only available to me. > > Any help really really really appreciated, Have you deleted any users recently? If so, your ZClass instances might be unowned. You'll need to take ownership of them. -- Steve Alexander

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Can't access ZClass object unless superuser
by Joshua Lanza 18 Dec '01

18 Dec '01

This must be a simple issue, but I can't get objects that I create from custom ZClasses to be visible to Anonymous. In fact they are only visible to the SuperUser. I have granted every permission I can find, and tried every possible combination with proxy roles. I have wasted almost 2 days on this single issue and it's driving me perfectly mad. It's the only thing I need to sell Zope to upper management, but they're growing more impatient as I twiddle away more and more hours searching for anything helpful on this. The whole site's built, but only available to me. Any help really really really appreciated, Josh

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Iteration counter
by Jon Erickson 18 Dec '01

18 Dec '01

I need a to create a simple counter variable that will store the number of iterations by a <dtml-in> structure. I have yet to find a way how to do this in zope. Here is an example (in perl) of what I need to do: @bar = ("sara","jane","kate"); foreach $foo (@bar) { print "$foo\n"; $counter = $counter + 1; } I will need to use the $counter variable later on in the script. Does anyone know how I can do this in zope? Thanks, Jon Erickson

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[IDEA] ZopeRoot and SiteRoot
by Casey Duncan 18 Dec '01

18 Dec '01

This qualifies as: Yet another idea that I'm not sure deserves a fishbowl proposal yet, or is big enough to even need one. In making some recent changes to the Application.py module in Zope which houses the class for the Zope Root Folder, it occurred to me that I could solve an issue that has bugged me for a while: You have to use the silly REQUEST.PARENTS[-1] to get the darn Root Folder inside Zope. Now unless something has been done about this that I'm not aware of, this is still true. Assuming that here is my idea: Add a method to the Root Folder, ZopeRoot, which returns the Root Folder. This would work: def ZopeRoot(self): """Return Thyself""" return self This would go along with ZopeTime and always be available in the general namespace for folks to use. Another idea also struck me. That SiteRoot should also be a callable object (if it exists) returning the Root folder of the sub-site. Now this may already be the case, but if not I thought it might be worthwhile. Thoughts? /---------------------------------------------------\ Casey Duncan, Sr. Web Developer National Legal Aid and Defender Association c.duncan(a)nlada.org \---------------------------------------------------/

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PDF from Printable Page
by Dirk Datzert 18 Dec '01

18 Dec '01

Hi, I'm looking for a way to get a PDF from a Printable Page. I thought of the ZpdfDocument as a base for this kind of issue. Has anybody some experience in resolving this issue ? Regards, Dirk

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