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document_src permissions error
by Courtland Idstrom 12 Oct '02

12 Oct '02

Hi - I'm using Zope 2.5.1 with Python 2.1.1 under Linux 2.4.18 and I'm having the following problem: I have a search engine built using ZCatalog which summarizes the documents sort of like google does when it outputs them to the user. The only problem is that I'm having problems with the document_src() not doing the permissions correctly. I have enclosed the summarize area with: getSecurityManager().getUser().has_permission('View management screens', object): and also tried getSecurityManager().checkPermissions('View management screens', object): For users that do not have access to some of the documents, they are correctly denied access and the summary doesn't print. The strange error appears when I try to search for the same thing from a user which can view the source for that document (I checked using the management interface). It gives a "unable to access document_src() in this context". For now I'm just doing the document_src() in an external method (which also does the summary), but I believe this to be a bug. Thanks -Courtland

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Is Zope 3's HTTP server ready?
by Hamish Lawson 12 Oct '02

12 Oct '02

I have a few web applications that use Quixote [1] to perform path traversal (Quixote having borrowed the idea from Zope). In my setup, Apache passes the request on to one of a number of long-running SCGI [2] (similar to Fast CGI) processes, which then call upon Quixote. I'm interested in alternatives to using several SCGI processes. There has been discussion in Quixote circles on having an integrated HTTP server, and some work has been done with Medusa and Twisted. The attraction with both of these is the possibility of using a lighter mechanism than multiple processes for dealing with concurrent requests. However my experience with the Quixote/Medusa approach had some troubles, and I now have some uncertainties about whether Twisted would be the right approach [1]. From what I've read on this list, Zope 3's HTTP server looks like it has a good design; my question is whether it is in a ready enough state yet to do simple object publishing on a production server, either using Zope 3's own path traversal mechanisms or by passing the request on to Quixote. I wouldn't need Zope's security mechanisms, acquisition, object database, or other stuff, so it wouldn't matter if those parts of Zope 3 are not yet ready. [1] http://www.mems-exchange.org/software/quixote/ [2] http://www.mems-exchange.org/software/scgi/ [3] http://lists.zope.org/pipermail/zope3-dev/2002-February/000516.html Hamish Lawson

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Re: Can't install from source
by Josef Meile 12 Oct '02

12 Oct '02

> I've used Fink 0.4.1 to install MySQL 3.23.49-2 & libraries on my OS X > 10.1.4 server. I've also installed MySQLDA-2.0.8, Python 2.1.2, and Zope > 2.5.1. I'm not sure if this is the problem, but you're installing the wrong phyton version, you have to install version 2.1.3. It's known that zope can fail if you install other version than the official one. Regards, Josef.

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Zope/Interbase and Backup Functions
by Derek Basch 12 Oct '02

12 Oct '02

Hello everyone, Just a quick "how do I do that?" type question. I am using the kinterbasdb Zope Database Adapter to access my Interbase Server through a web interface. I would like to build some DB backup functionality into the interface. It seems you need to use the Interbase 'gbak' executable or the InterBase Services API functions to perform backups. I imagine that I could write something in C++ that uses the Services API and put a SWIG wrapper around it. Then, call the wrapper with a Zope External Method (python). This would be a bit of work for me though, because I have never used SWIG. Can anyone give me some suggestions on how to add this functionality to my program? Perhaps a simpler method? Help me mighty guru's! Thanks, Derek Basch __________________________________________________ Do you Yahoo!? Faith Hill - Exclusive Performances, Videos & More http://faith.yahoo.com

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passing ZPT variables to Javascript
by Karen Yang 12 Oct '02

12 Oct '02

If I defined variables in my ZPT using tal:define, how do I pass these variables to a javascript function without getting an error? My attempt (obviously wrong): <td tal:define="itemId item/id; code item/code"> <a style="color:dodgerblue" tal:define="url string:${request/URL1}/processDeleteItem?itemId:int=$itemId&code=$code" href="javascript:doNothing()" onClick="javascript:confirmDelete('string:$code', 'string:$url')"><img src="/ItemManager/images/delete_icon" border="0"></a> </td> Thanks, Karen --------------------------------- Do you Yahoo!? Faith Hill - Exclusive Performances, Videos, & more faith.yahoo.com

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maybe importing a Zope module
by KevinL 12 Oct '02

12 Oct '02

Heya, Is there a good reliable (documented?:) way for a product to tell if it's being imported by Zope or not? I've got a product which may or may not be imported by Zope. If it is, then it should load up the Zope-specific stuff and make it available - but if it's not, then it should ignore all that stuff (because it'll raise errors on trying to get DTMLFile and similar), and just present a simpler view of itself to the world. I can try and import as though it's a Zope module, and wrap that in try...excepts, but that seems dodgy - it'd mean I lose my nice tracebacks in the product control panel if I break the product at any time. Is there a better way? KevinL

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Looking for Zope Candidate
by Stacy Roberts 12 Oct '02

12 Oct '02

I am in search of an experienced Zope developer who might be interested in a job position. Someone with experience in Page Templates and CMF is desired, but not necessary. The job location is at John C. Stennis Space Center in South Mississippi(near the Louisiana line) and is full-time and long-term. The individual would be part of a team developing a web-enabled complex data mining and reporting system. The individual must have a Bachelor's in Computer Science, Mathematics, or related field. They must also be a U.S. citizen and able to obtain a DoD clearance. If you are interested, or know someone who is, please contact me by email and send resume if you like. Thanks, Stacy __________________________________________________ Do you Yahoo!? Faith Hill - Exclusive Performances, Videos & More http://faith.yahoo.com

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Thanks: Unix: Vanishing Group Ids associated with Zope process
by Holger Blasum 11 Oct '02

11 Oct '02

Thanks Jerome, Johan, > it is called for you by PAM when you log in, AFAIK, this is > why it works from your command line That was the missing bit. After following some blind alleys (pam-python seems to be only available for py 1.5 and os.setgroups() is only available in py 2.2) the solution was to run in /etc/init.d/zope 'su www-data -c 'zope-z2 ARGS'' instead of just 'zope-z2 ARGS' so that PAM is called by su. I didn't even have to adjust the zope-z2 script because the os.setuid() is not called when it is not run as root. Data.fs.lock and some other stuff in /var/lib/zope/var is now owned by www-data instead of root, so it is not necessarily best practice but works. Have a nice weekend, -- Holger Blasum

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How to organize users in "groups"
by Phil Glaser 11 Oct '02

11 Oct '02

Hi, I'm building a CMF site for a client who wants to organize users within groups. The twofold purpose of this organization is: 1) to be able to send mail to specific constituencies of users; and 2) to assign permissions to specific constituencies of users. My client wants the application to have it's own custom administrative interface (he does not want the site's administrators to be exposed to ZMI) that will enable the administrators to set permissions for specific groups on specific folders. The permissions that the administrator sees may be simplified versions of the more complex sets of permissions you see through ZMI. For example, for a folder the administrator would only see the permissions "No Access," "Read Only," "Submit File," and "Approve File." It is also important to know that the site is structured as multi-community portal. In other words, members are defined at the level of the portal, and they will have permission to belong to specific communities within the portal. Each community will have the same functionality (content folders, discussions, news, etc.) but the content will be different for each. It seems to me that the simplest way to do this is is to implement a "group" as a role. In other words, what my client is calling a "group" would be the equivalent of a Zope "role." When the administrator adds a new group, he would under the hood be adding a new role. When he adds a user to one or more groups, he would be associating the user with the roles (users need to be able to belong to more than one group at a time). Listing the members of a group and sending mail to them would mean filtering the user objects based on their role (assuming this can be done). As for the simplified permissions, there would need to be a dictionary in a script that correlates each of these simple permissions with one or more of the native Zope permissions. I think the only major problem with my approach stems from the fact that the groups/roles would be different for each comunity -- they would not apply to the entire portal. However, users would still be defined at the portal level because they will have access to multiple communities. Through ZMI, it looks like you can only assign a role to a user if the role has been defined at the same level as the user in the hierarchy or at a containing level in the hierarchy; in this case, I want to be able to assign a role that has been defined at a level below the level at which the user is defined. So my question is: is there a workaround for assigning a role to a user when the role is defined further down in the hierarchy from where the user is, or is there some other way entirely that I should be solving this problem? Many thanks! Philip Glaser Principal and Software Architect Sustainable Software Solutions, LLC StillSmallVoice(a)DirectvInternet.com www.sustainsoft.com 973-951-9522

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newbie question...
by Bing Liu 11 Oct '02

11 Oct '02

I am new to Zope. Downloaded the Linux binary, installed, and went through the Toturial. All wnet great. The questions is how do can publish a web site? I have spent several hours going through the available document. Still has no clue. Please help! Thanks, Bing

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