November 2002 - Zope

How to login
by D Bamud 14 Nov '02

14 Nov '02

I created a folder 'F1' inside 'Root Folder'. Inside it I created 'acl_users' and in which I created a user 'sam' as 'Owner' role. I have added some documents in the 'F1' folder. Now how I can login in a separate browser to login with the userid 'sam'? -- Thanks

2 1

site access and authentication
by Ulrich Wisser 14 Nov '02

14 Nov '02

Hello, I need to verify and set some REQUEST variables for each and every request to my application. I thought that SiteAccess maybe does the job. It works as I expected, only now I want to check some user rights and all I ever get is the user "Anonymous User" which is not what I expected. (The application shows the real name.) E.g. SiteAccessRule <dtml-call "REQUEST.set('sa_user', _.SecurityGetUser().getUseName())"> and my index_html <dtml-var sa_user><br><dtml-var "_.SecurityGetUser().getUseName()"> output will be Anonymous User fakeid If I can't access the real user in a SiteAccess rule. How can evaluate a DTML Method every time a request is made to my app? Thanks Ulrich

3 3

Problems with memory leaks
by Geir Arne Evjen 14 Nov '02

14 Nov '02

I've been using Zope 2.5 for some months now basically for thermodynamic calculations, and I have discovered memory leaks. I've installed 10 extensions where 4 of them are accessing C++ code (with no leaks), and the 6 others are using MySQL to get some data. When I'm using XML-RPC from the client to access the functions I can see that the memory is eaten on the server. How it it possible for Zope to leak memory?? When I'm cheking the memory it seems like the memory is constant for some time, but suddenly jumps up a few kb. Is this normal? Could it be that the garbage collector is not doing his job? PS. I'm not using any global variables which I write to. Greetings from, Geir Arne Evjen Norway

2 1

Zope Couldn't install ZCatalog - or OFSP
by george donnelly 14 Nov '02

14 Nov '02

hi, I'm trying out 2.6.0 (the binary) and running it for the first time on RH7.2 w/ instance home I get these errors in my supid log file saying zope couldn't install OFSP or ZCatalog (see below). I unpacked and installed zope as user zope, set the sticky bit, and started it as root. its running as user zope. and yet zcatalog and ofsp show up in the products folder and are not broken. and i'm able to add new dtml docs and methods, images and zcatalogs. (I also installed Zope 2.6.0 from source (as root), started it with instance home and got the same thing.) any ideas appreciated! :) 2002-11-13T09:18:45 ERROR(200) Zope Couldn't install OFSP Traceback (innermost last): Module OFS.Application, line 700, in install_product - __traceback_info__: OFSP Module ZODB.Transaction, line 222, in commit Module ZODB.Transaction, line 195, in commit Module ZODB.Transaction, line 256, in _commit_objects Module ZODB.Connection, line 389, in commit - __traceback_info__: (('intSet', 'intSet'), '\x00\x00\x00\x00\x00\x00\x089', '') Module ZODB.FileStorage, line 705, in store ConflictError: database conflict error (oid 0000000000000839, serial was 0342cf4fff06046e, now 0000000000000000) ------ 2002-11-13T09:18:45 ERROR(200) Zope Couldn't install ZCatalog Traceback (innermost last): Module OFS.Application, line 700, in install_product - __traceback_info__: ZCatalog Module ZODB.Transaction, line 222, in commit Module ZODB.Transaction, line 195, in commit Module ZODB.Transaction, line 256, in _commit_objects Module ZODB.Connection, line 389, in commit - __traceback_info__: (('intSet', 'intSet'), '\x00\x00\x00\x00\x00\x00\x0e\xb5', '') Module ZODB.FileStorage, line 705, in store ConflictError: database conflict error (oid 0000000000000eb5, serial was 034171ca34c3c4e6, now 0000000000000000) <--> george donnelly - http://zettai.net/ - "We Love Newbies" :) Zope Hosting - Dynamic Website Design - Search Engine Promotion Yahoo, AIM: zettainet - ICQ: 51907738 - e:george@zettai.net

2 2

Log out
by General Info 14 Nov '02

14 Nov '02

help!!! until now whenever i opened a new browser window, zope asked for user/psswd. however, today i tried it on a diff computer (w/ an older version of ie i belive..) and it did not ask for authentication if an authenticated user already has a window open. so, i closed all browser windows, but the old user was still authenticated. i have not checked but i'm sure the connectino will timeout after a while. SO i would like to now how i can provide the user w/ a 'log out' button so they can make sure that they have been logged out of the site, as the content displayed for each user is different/for their eyes only. i know the problem would be solved most likely by updating the brower, but since there will be a large amount of users, i cannot control that... please advice.

1 0

Merging ZPT's
by Blurg 14 Nov '02

14 Nov '02

Hi, In perl I was used to merge html templates by the decision of a script. Thus, for example, I have a script and a bunch of HTML templates. Now, the script can decide for some reason, to built the final HTML page in lots of ways when the final HTML page consists of 2 templates depending on how it's called, for example: First half of the page: Template A Second half of the page: Template B or Template C or ... So, how do I do this in a Zope python script? Can I just return 2 templates, so that it will merge the two page templates in one HTML page? I hope I made my point clear. Jurgen --------------------------------------------------------------------------- "When a man sits with a pretty girl for an hour, it seems like a minute. But let him sit on a hot stove for a minute and it's longer than any hour. That's relativity." [A. Einstein, 1938] <footer align=left valign=bottom> http://weirdscience.nl </footer>

1 0

Zope Engineer position available
by Jason Abate 14 Nov '02

14 Nov '02

I hope everyone will excuse a job listing here but given the focused nature of our search, I thought this might be the best place to find a good fit. If you're a skilled Zopista and want to work with Zope professionally, please consider Hostway! Send resumes to careers(a)hostway.com or fax to 312-236-1958 and please include reference code #329 in your cover letter. Thanks, -jason -- Jason Abate Director of Research and Development Hostway Corporation jason(a)hostway.com Hostway Corporation provides web hosting services with locations in the US, Europe, and Asia. We are growing rapidly and have been profitable every year since our founding. Our strong emphasis on technology combined with our dedicated, energetic, and customer-focused team has made Hostway a premier Internet company. Hostway is looking for a Zope Engineer to join our Systems and R&D groups who would be responsible for the content management systems that drive our corporate website, intranet, and other Zope deployments. The main function of the position is to provide research, development, and system support for enterprise-level CMF portal applications. You will work closely with our Creative Services group which develops the content of our website. Responsibilities include design and management of the website and underlying system architecture, client-side programming to add dynamic behavior to our site, server side programming and further Zope and CMF developments. This is a high-profile position, which requires an individual with excellent communication skills, the ability to work extended hours on occasion, to be on-call 24/7, and a self-motivated work ethic. Our Zope/CMF applications are mission-critical, and requirements change is directly proportionate to the rapid rate of growth of our company. Qualifications: * Experience in web application development working with server-side technologies such as ASP, JSP/Servlets, Cold Fusion, J2EE. * Solid client-side JavaScript, DHTML and CSS authoring skills and experience organizing and managing large scale websites. * Software development experience using Python, in particular with web-related technologies. * Extensive experience with Zope, including working knowledge of DTML/ZPT, ZMI, ZEO and CMF. * Working knowledge of SQL databases. * Experience administering Linux (or other Unix) and Apache in a production environment, in particular using virtual hosting, caching servers and load balancing. * Strong communication and organization skills. * BS or higher degree in computer science or related field.

1 0

CMF Member capitalization and duplication prevention (a mouth full)
by BZ 14 Nov '02

14 Nov '02

I have been digging through the code trying to figure out how I can stop members from registering with the same name but different capitalization (ie, 'BZ', 'bz', 'Bz', 'bZ'). The closest I came was in" http://cvs.zope.org/CMF/CMFDefault/RegistrationTool.py Where there is a function line: if not self.isMemberIdAllowed(username): I would like to try and edit that function but cannot find where it is in the source code. Has anyone done this and am I looking in the right area? Thanks, BZ

1 0

Secure Quizzing/Testing Project
by Jim Washington 14 Nov '02

14 Nov '02

Hi, all My group is considering putting together a proposal for a web-delivered high-stakes testing environment, which needs to be secure, safe from copying, etc... We have mainly done on-line surveys in the past, where the most sensitive data is an occasional ssn, for which we use SSL and we put the database behind a firewall, and this is secure enough. This would be a much bigger project. We may or may not get the contract, but I thought I would send a few ideas out to the Zope brain trust and see what you-all think. Zope-edu seems to be missing in action, so I hope this is a good place to introduce this. I am thinking toward a Zope backend and a Mozilla/XUL client. Single source for code and data, so no clients to distribute, and available to almost every machine/OS out there. (Install Mozilla/Netscape7; mozilla -chrome https://our.url/testname; take the test.) With XUL, the source of the page/application is not readily available, so this has a marginally better item security than html. Test content (question banks, assessments) would be maintained in ParsedXML in (standard?) IMS-QTI format http://www.imsproject.org/question/. Though IMS-QTI is dreadfully complicated, the IMS folks seem to have this solved for the general case, and why reinvent the wheel? Yes, of course, proctors on the client side will be essential. "On the web, nobody knows you're a dog." :) Special buzzword compliance may be important for future-proofing: Accessibility and internationalization in particular. These are just initial thoughts. I would think there should already be a project out there with similar ideas, but none really stood out. PHPTest seems to use the IMS-QTI model, but it's php, and I would rather get away from DTML-ish solutions; besides, zope has really good security policies built-in. SCORM refers to the IMS -QTI model, but if I am correct, any implementations are proprietary at the moment. Any ideas? Any projects out there? I would much rather contribute to an existing open-source project than create my own (probably necessarily proprietary) one. -- Jim Washington

1 0

How can I use the mxDateTime library with ZODBCDA?
by Florian Reiser 14 Nov '02

14 Nov '02

Hello guys, I've programming a personnel administration system in Zope. There I have persons having entered the company before epoch. Using the normal DateTime module from Zope I have extreme problems. Now I have discovered that there is the mx.DateTime package for this reason. How can I convince Zope to use it for the results of database queries on a ZODBCDA connection? Greets Florian Reiser

1 0