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Size of Data.fs - and crypto.
by Erik Enge 10 Sep '00

10 Sep '00

Hi. Does the performance of Zope degrade as the Data.fs get larger? Both on startup time (which I'm pretty sure will degrade) and on respons time, serving a object f ex? Another thing. Have anyone tried to encrypt all data inside the Data.fs file? I mean, encrypted the data so that not even root can access it, only if you have the right passphrase (or whatever) in the management interface are you allowed access to the data. Anyone tried anything like that? Thanks.

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FW: ZClass, acquisition, dtml confusion
by Jon Franz 10 Sep '00

10 Sep '00

Since no one on general could answer this, I'm sending it to Dev now: sorry for cross posting. -----Original Message----- From: Jon Franz Sent: Friday, September 08, 2000 1:24 PM To: 'zope(a)zope.org' Subject: ZClass, acquisition, dtml confusion Hello, Previously I made a DTML method that when used within a DTML Document would modify properties on that document. Having this floating around in root made it visible to the whole site, but seemed 'unclean'. So, I attempted to make the DTML method into a ZClass, and making the index_html method in the ZClass contain the exact same DTML as the method... But it doesn't work. So, I tried again - this time with as simple a method as possible, a very basic counter. The DTML method I made in root increments and displays the 'z_count' property on the page that calls it, and creates the property if it doesn't exist, so using it is as simple as: <dtml-var mycount> However, I place the DTML into a new class, and then make a new instance of the class, and it wont work as above. I now have to do this: <dtml-with MyZCCount> <dtml-var MyZCCount> </dtml-with> And, instead of modifying the property of the calling document, it modifies the parent folder's properties. Below is the DTML, can someone please explain what I need to do to get this to work on the calling DTML document instead? If I can't get this simple counter to work I'm going to go mad, since changing properties is something I need to be able to do from many of my planned ZClasses... Thanks in advance! <dtml-if "hasProperty('z_count')"> <dtml-var "'%06d' % (z_count + 1)"> <dtml-call "REQUEST.set('z_count', z_count + 1)"> <dtml-call "manage_changeProperties(REQUEST)"> <dtml-else> <dtml-call "manage_addProperty('z_count', 1, 'int' )"> 000001 <dtml-if>

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RE: [Zope-dev] Size of Data.fs - and crypto.
by Chris McDonough 10 Sep '00

10 Sep '00

> Does the performance of Zope degrade as the Data.fs get larger? Both > on startup time (which I'm pretty sure will degrade) and on respons > time, serving a object f ex? No... Data.fs is only appended to, so I don't think there is any appreciable seeking latency as it grows. You can probably verify this by running speed.py (distributed in lib/python/ZODB/test/speed.py) against a large FileStorage and then against a small one. > > Another thing. Have anyone tried to encrypt all data inside the > Data.fs file? I mean, encrypted the data so that not even root can > access it, only if you have the right passphrase (or whatever) in the > management interface are you allowed access to the data. You'd probably need to rewrite the pickling and unpickling routines used in lib/python/ZODB/Connection.py to dump and load "encrypted" pickles.

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PATH_TRANSLATED delimted with backslash ?
by Steve Alexander 10 Sep '00

10 Sep '00

I just tried out on Windows 98 a Zope application that was developed on Linux. Everything worked fine, except that REQUEST.PATH_TRANSLATED changed to be delimited by backslashes on Windows 98, whereas it is delimited by slashes on Linux. This caught me out, as I'd been using it raw in an external method: obj = self.restrictedTraverse(REQUEST.PATH_TRANSLATED) This stopped working when I tried the software on Windows. Bug or feature? -- Steve Alexander Software Engineer Cat-Box limited http://www.cat-box.net

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Calendar Tag 0.9.21 released
by al028823＠alumail.uji.es 09 Sep '00

09 Sep '00

Hi all, The version 0.9.21 of the calendar tag has been released, it can be downloaded from "http://www.zope.org/Members/jdavid/Calendar". This is a beta version, pre-1.0. If you're aware of any bug or want a *small* change to be done in 1.0 tell me now (hope to release 1.0 and start 1.1.x soon). regards, david

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SkinScript, and family
by Bill Anderson 09 Sep '00

09 Sep '00

OK, I have some potentially complicated calculations to build on a Ticket Tracking system I've built here. I can do it in python mehtods, but am wondering if skinscript will get me what i want as well. If anyone has done dome stuff in skinscript they can share I would be ecstatic. I don't necessarily need a tutorial (but would be happy to review and rate one :), as I can learn fairly well from examples that have an explanation of what the skinscript accomplishes. TIA, Bill -- Bill Anderson (ARC) Unix/Linux System Administrator HPSO Engineering Productivity Team Thursday, September 07, 2000 Random Quote: Never eat anything bigger than your head.

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ZPatterns Dataskin base class?
by James Johnson 09 Sep '00

09 Sep '00

My ZClass only had Dataskin as a base class. I'm not sure what other class should be added to the Dataskin. I"m trying to work off the simple example that PJE mentioned on the IRC chat. Jimbo Get your Free E-mail at http://tacoma.zzn.com ____________________________________________________________ Get your own Web-Based E-mail Service at http://www.zzn.com

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ZPatterns again? Propertysheet not available
by James Johnson 09 Sep '00

09 Sep '00

Here is my code and the error is nips name not found. Any suggestions <dtml-let ni="['_.newItem(id)']"> Print this:<dtml-var ni> nips ="['_.get('GBookProps')']"> <dtml-call "nips.propertysheets.manage_addProperty('guest_name', guest_name, 'string')"> <dtml-call "nips.manage_changeProperties(REQUEST)"> </dtml-let> Get your Free E-mail at http://tacoma.zzn.com ____________________________________________________________ Get your own Web-Based E-mail Service at http://www.zzn.com

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security document comments
by R. David Murray 09 Sep '00

09 Sep '00

Well, I just tried to post several paragraphs to the security interface wiki, and netscape reported a proxy problem. It then ate my posting instead of giving it back to me when I pressed back. So I'm going to try to recreate what I wrote here and hope someone will post it for me or something. (If only w3m supported cookies...) 1) "in an anonymous context" made me think first of anonymous users. I'm really not sure it's a very evocative phrase. It's really about manipulating a reference to the object instance itself rather than calling one of its methods. 2) The doc is great, but I also like 'command reference' type things where you get the complete syntax and semantics for each method. If I can only have one doc, I'll take this one, but I can wish for both <grin>. 3) Although I've written and worked with python Products (and with python itself for longer), I really don't know what "subobjects where the subobject supports the setting of arbitrary attributes" are. How about an example of one of those? 4) Having read this doc, I now understand how the current security model works much better. I think that indicates that this interface is definately a move in the right direction in terms of making the whole thing more understandable and usable. --RDM

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RFC: Zope Security for Developers
by Brian Lloyd 08 Sep '00

08 Sep '00

Hi all - There was quite a bit of discussion on the "security assertion spelling proposal" on dev.zope.org recently - it has since turned into an active project and I have a draft of the first deliverable (user documentation) ready for review and comment: http://dev.zope.org/Wikis/DevSite/Projects/DeclarativeSecurity/ZopeSecur ityForDevelopers PLEASE take a few minutes to review this - it will become the official documentation for how Python developers use security very soon! Thanks! Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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