- Zope - Zope lists

- ZopeHTTPServer.py: Isn't it /usr/bin/env ?
by Gregor Hoffleit 10 Dec '98

10 Dec '98

There's a small inconvenience with ZopeHTTPServer.py in 1.9b1: The line specifying the interpreter uses "#!/bin/env python", but env is more commonly in /usr/bin/env (all other scripts in Zope use /usr/bin/env). More important, the line is not the first line in the file (it's prefixed by the license plate), and therefore is ignored (at least with the shells I know). Perhaps this could be fixed ? thanks, Gregor

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Re: [Zope] - External Method questions
by Amos Latteier 10 Dec '98

10 Dec '98

At 10:00 AM 12/10/98 -0800, David Ascher wrote: >* I'd like to add an external method in a Shared package, but I'm not sure > how to do it -- in the Add External Method form, what's the "module > name", is it packagename.modulename, packagename/modulename, or what? > I've tried various combinations with no luck. I don't think you can add an external method from the Shared package... >* I want to return an image from my external method. What I have > which sort of works is: > > def foo(self, RESPONSE): > RESPONSE['content-type'] = 'image/png' > return mkimage() > > where mkimage returns the actual PNG image data. Is this correct? Sure. You can also use RESPONSE.setHeader('content-type','image/png') >* How can an external method refer to the objects in the Zope app? > 'self' above is App -- can I do App.foo and get to object foo? Right. self is your hook into Zope world. From self you should be able to get anywhere you'd like to go. Just to be clear, self is the folder in which the external method is called. External Methods are methods of Folders. Since External Methods are acquired, self is not always the same Folder in which the method is defined--it may be a child Folder. Make sense? >* Is there a way for external methods to read from files on the > filesystem? How about write to files on the filesystem? What kinds of > sandbox is in place? Right now there is no sandbox or restricted execution environment for External Methods. You can do literally anything that you normally do in Python. So you have the power to do both great good and great evil. This power is one reason that External Methods are required to be defined in the Extensions directory--it's easier to keep an eye on them there. -Amos

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- learning by cloning
by Joachim Schmitz 10 Dec '98

10 Dec '98

I´m trying to learn how to work with Zope, by cloning the Zope-homepage, so far I got many hints by viewing the dtml-source. Unfortunately one (at least I) cannot reveal all details. For example, when I didn´t find the source of "sidebar_contents". Also are there more informative debugging-info´s available, than I can look up in the html-source? regards Joachim Schmitz

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- Access to sequence-item?
by Michael Scharf 10 Dec '98

10 Dec '98

I think it is a bad decision to use the '-' in special names. Here is my problem:   How to access the sequence-item? this does not work:  How to acces to the outer_list.sequence-item? This does not work:  neither does this work:   This indicates, what is going on:  inserts 41!!!     I think it would be nice, if the  would support an 'as' attribute:       Or am I missing something??? Michael -- ''''\ Michael Scharf ` c-@@ TakeFive Software ` > http://www.TakeFive.com \_ V mailto:Michael_Scharf@TakeFive.co.at

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RE: [Zope] - ZODB access
by Jeff Bauer 10 Dec '98

10 Dec '98

>> I'd like to navigate the database from a set of root >> objects in the database without being requested for >> authorization info. > Do you mean something like an 'object explorer'? > With an explorer like interface to the DB? Not exactly, although having an object inspector might be a nice gloss. I'm talking more along the lines how I can currently rummage through pickles in interpretive mode using 'python -i'. Regards, Jeff Bauer Rubicon, Inc.

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RE: [Zope] - Zope module for Apache?
by Jeff Bauer 10 Dec '98

10 Dec '98

> While griping about the lack of Authorization headers > from Apache, one of the tech-support persons I talked > to suggested making a Zope module for Apache, thereby > circumventing the problem. I'm not sure how this would > work, but it seems (in general) like a good idea to me... > Any ideas? Any volunteers? :) A mod_pcgi module is a likely possibility, I think. -Jeff

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- External Method questions
by David Ascher 10 Dec '98

10 Dec '98

* I'd like to add an external method in a Shared package, but I'm not sure how to do it -- in the Add External Method form, what's the "module name", is it packagename.modulename, packagename/modulename, or what? I've tried various combinations with no luck. * I want to return an image from my external method. What I have which sort of works is: def foo(self, RESPONSE): RESPONSE['content-type'] = 'image/png' return mkimage() where mkimage returns the actual PNG image data. Is this correct? * How can an external method refer to the objects in the Zope app? 'self' above is App -- can I do App.foo and get to object foo? * Is there a way for external methods to read from files on the filesystem? How about write to files on the filesystem? What kinds of sandbox is in place? --david

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- Zope module for Apache?
by Magnus Lie Hetland 10 Dec '98

10 Dec '98

While griping about the lack of Authorization headers from Apache, one of the tech-support persons I talked to suggested making a Zope module for Apache, thereby circumventing the problem. I'm not sure how this would work, but it seems (in general) like a good idea to me... Any ideas? Any volunteers? :) -- Magnus Lie Hetland www.pvv.org/arcadia <arcadia(a)pvv.org>

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- Zope on a Rope ah... RPM
by Jeff Rush 10 Dec '98

10 Dec '98

Red Hat RPMs for Zope are now available for download at: http://starship.skyport.net/crew/jrush/ I broke it out as a base package plus your choice of a ZopeHTTPServer or PCGI package that supplies the empty object database and the HTTP glue to get a server up and running. The source RPM (SRPM) is there as well, if anyone wants to peruse the .spec file and see/alter it re dir locations, file permissions, etc. etc. I'd appreciate feedback if I've screwed something up. I've tested the RPMs under Red Hat 5.1 and they require Python 1.5.1. I haven't tested w/1.5.2a2. -Jeff Rush

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RE: [Zope] - Problems with Apache/authorization...
by Jeff Bauer 10 Dec '98

10 Dec '98

Magnus Lie Hetland writes: > I am trying to install Zope with pcgi, and have managed to > make the rewriting trick in the installation guide work to > the point that I can get the main page up (through a rewritten > URL), but it seems that Apache won't give it the proper > Authorization header... At least, authorization fails, > and if i click cancel, then it complains that there was > no Authorization header... Any common solutions to this > sort of problem? (I know there exists a patch to apache > that makes this sort of thing unnecessary, but...) A version of Zope will be released on Friday that includes it's own Apache. It may be a good starting point for you. Other possibilities: - Upgrade your Apache if it isn't recent (not always possible) - Check to make sure mod_rewrite is compiled in: httpd -l - Try using RewriteLog with loglevel 9 and see what it says. - Remember to check the apache access and error logs. Regards, Jeff Bauer Rubicon, Inc.

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