- Zope - Zope lists

single side logon with notes ?
by Mark-Zimmermann＠t-online.de 22 Mar '02

22 Mar '02

is there a way to read the lotus notes adressbook for the zope user authentification?

2 1

RE: [Zope] System performance threads/proccesses & random crashes (SIGPIPE)
by Doyon, Jean-Francois 22 Mar '02

22 Mar '02

Hello, Thanks for the help! Well, I've determined it most likely isn't PostgreSQL, since I switched the connections from socket based to TCP based, and the problem still occurs. So, I turn my attention to FastCGI ... I just read this on the FastCGI Website: If an http client aborts a request before it completes, mod_fastcgi does too - this results in a SIGPIPE to the FastCGI application. At a minimum, SIGPIPE should be ignored (applications spawned by mod_fastcgi have this setup automatically). Ideally, it should result in an early abort of the request handling within your application and a return to the top of the FastCGI accept() loop. I guess Zope isn't handling the SIGPIPE the way it is suggested here? Anyways this seems to be the most likely cause of the problems I'm having. That AND possibly the problem Matt describes. Matt, where can I find more information on this, and possible solutions? For now, I'm guessing switching to using TCP instead of sockets for FastCGI connections might help solve the problem? I am getting *A LOT* of these errors, every 5 to 10 minutes!!! And it *IS* traffic related ... when the business day dies down, the errors stop occuring (Normal usage pattern at this time would suupport the theory that the rrors are therefore directly related to the amount of usage). I'm also thinking of playing the -restart-delay option of the FastCgiServer directive ... Help!!! Thank you, J.F. -----Original Message----- From: Chris McDonough [mailto:chrism@zope.com] Sent: Thursday, March 21, 2002 11:08 AM To: Doyon, Jean-Francois; zope(a)zope.org Subject: Re: [Zope] System performance threads/proccesses & random crashes (SIGPIPE) SIGPIPE is raised by the OS when a UNIX pipe is broken in the application. UNIX takes this exception seriously which is why it sends the signal to the process telling it "you've got a broken pipe". As you say it started happening when you began using the database adapter, it may be that some piece of the database adapter opens a pipe that is later broken (for whatever reason, that's the $10,000 question ;-), causing the OS to send Zope a SIGPIPE. It may be possible to install a signal handler for SIGPIPE to get rid of the problem, but I'm not exactly sure what it should/would do during this failure state, and it would be more useful to try to pin down the pipe that is getting broken by making the problem replicable. The ZODB pool_size parameter is controlled via the pool_size argument to ZODB.DB.DB's constructor. It signifies how many database connections its willing to place in the pool. When Zope starts up, each Zope thread needs to use its own database connection. So you should likely never have a smaller pool_size than number of threads (the -t parameter to z2.py). Adjusting these values up and down may improve performance but there has to this day not been any empirical studies as to how performance is impacted when you do. It's probably something you need to try out in a load testing environment. If you find something interesting, let us know! ;-) ----- Original Message ----- From: "Doyon, Jean-Francois" <Jean-Francois.Doyon(a)CCRS.NRCan.gc.ca> To: <zope(a)zope.org> Sent: Thursday, March 21, 2002 9:57 AM Subject: [Zope] System performance threads/proccesses & random crashes (SIGPIPE) Hello, I'm running into random crashes of my zope processes, but I'm not finding any reference anywhere in the mailing list archives or on the site about this specific one: I'm getting: 2002-03-21T14:48:52 ERROR(200) zdaemon zdaemon: Thu Mar 21 09:48:52 2002: Aiieee! 20070 exited with error code: 13 Every now and then, for now apparent reason. signal 13 is a SIGPIPE ... This is Zope 2.5.0 with CMF 1.2 on a severly upgraded/updated/patched RH6.2 ... with a Python 2.1.2 built with defaults. It runs with FastCGI to Apache 1.3.2x ... Usually I just wait a couple of seconds, hit referesh in my browser and things come back to normal, but it's still annoying, and doesn't look good to the public. Note that when this happens, it ususally seems to happen to ALL processes. It looks to me like the PIPE's between the master zope process and it's children dies, and they all have to restart for some reason. Could this be ? and if so , why ? Note that I started noticing this when I for the first time started using Psycopg to create RDBMS connections to my PostgreSQL ... Could there be a relation somehow? On a slightly similar topic, How to I manage performance? I plan on using Zope for a fairly high demand web site .. I noticed I can control how many processes/threads start, but then I also read somethign about the ZODB pool_size ... What is the relation between the two exactly ? Thank you, Jean-François Doyon Internet Service Development and Systems Support GeoAccess Division Canadian Center for Remote Sensing Natural Resources Canada http://atlas.gc.ca Phone: (613) 992-4902 Fax: (613) 947-2410 _______________________________________________ Zope maillist - Zope(a)zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )

2 1

RE: Zope in a web based learning environment? (Marcio Marchini)
by Brian Sullivan 22 Mar '02

22 Mar '02

> Reply-To: <mqm(a)magma.ca> > From: "Marcio Marchini" <mqm(a)magma.ca> > To: <zope(a)zope.org> > Date: Thu, 21 Mar 2002 20:26:22 -0500 > Subject: [Zope] Zope in a web based learning environment? > > Hi, > > I was wondering if anybody out there is using Zope in a > web based learning > environment ? Would you care to share your experiences/opinions ? > > It could be courses online, free or not, anything SCORM related > (http://www.adlnet.org/) etc. > > thanks ! > > marcio > > We have a ( somewhat crude but functional ) demo of a Zope based Learning Management system at http://www.coursesbywire.com/Demos.html. It uses the AICC standard for student tracking ( I haven't had the time to do any Scorm based tracking but it is on my list). AICC has some wiggle room in specs and different authoring tools interpret the standard somewhat differently and I have only used our Toolbook generated material -- I am sure though that it could be made to work with any AICC compliant lessons.

1 0

ZPT Equivilent of <dtml-var standard_html_header>
by hpinson＠indepthl.com 22 Mar '02

22 Mar '02

Hi. I'm diving into ZPT today, and and can't seem to figure out this seemingly simple thing. In a Zope Page Template document, what is the ZPT equivilent of <dtml-var standard_html_header> This: <p> <span tal:replace="here/standard_html_header"> standard_html_header </span> </p> works, but spits out only raw html instead of rendered html. What am I doing wrong? Thanks! Harlow Pinson Indepth Learning Email: hpinson(a)indepthl.com Web: http://www.indepthl.com Voice: 505-994-2135 FAX: 208-475-7678

2 1

RE: [Zope] Zope Build Failure
by Rengasamy, Samy 22 Mar '02

22 Mar '02

Yes...That took care of my problem. I am new to Zope and I was trying to build on Linux/390. I was wondering if Linux/390 was causing the problems. Samy Rengasamy. -----Original Message----- From: Jens Vagelpohl [mailto:jens@zope.com] Sent: Friday, March 22, 2002 10:45 AM To: Rengasamy, Samy Cc: 'zope(a)zope.org' Subject: Re: [Zope] Zope Build Failure this is a FAQ. zope is not compatible with python 2.2. use python 2.1.2 instead. jens On Friday, March 22, 2002, at 11:20 , Rengasamy, Samy wrote: > I installed Python-2.2 at /usr/share/apps/Python. > > I did the following: > $ export > LD_LIBRARY_PATH=/usr/share/apps/Python/lib/python2.2:$LD_LIBRARY_PATH > $ export PATH=/usr/share/apps/Python/bin:$PATH > > Untarred Zope-2.5.0-src at /usr/share/apps and did: > > $ python w_pcgi.py > > The above failed as it could not locate Makefile.pre.in at > /usr/share/apps/Python/lib/python2.2/config > > Then I copied it from /usr/share/apps/Python-2.2/Makefile.pre.in. > > Now it fails saying target boot not found in the Makefile. > > Am I missing a step here? > > Thanks in Advance, > > Samy Rengasamy. > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev )

1 0

finding URL contents for MS behavior
by Mark A. Lilly 22 Mar '02

22 Mar '02

Greetings, For a project i'm doing, i need to use MS Internet Explorer Behaviors. Here's a link for the curious. (http://msdn.microsoft.com/workshop/author/behaviors/behaviors_node_entry.as p). They are mostly Javascript libraries that provide certain functionality. They are called as shown in the snippet here: <STYLE> @media all { IE\:Calendar { behavior: url(http://192.168.1.1:8080/Sputnik/ProjectHQ/calendar.htc) ; width : 33%; } ... The problem is, the code above doesn't work. When i change the url line to point to my apache on Port 80, it works fine. behavior: url(http://192.168.1.1/newsite/calendar.htc) ; How can i make this work in Zope? I tried saving calendar.htc as a DTML document and then a method. Should i use Local File System, or save as a File object or ??? Any thoughts are welcome. Thanks, mark

2 1

Re: [Zope] set accessrule
by jbr＠FIZ-Karlsruhe.DE 22 Mar '02

22 Mar '02

Hello Chris, > From chrism(a)zope.com Fri Mar 22 16:51 MET 2002 > Subject: Re: [Zope] set accessrule > Date: Fri, 22 Mar 2002 10:56:23 -0500 > > There is a simple answer to this question, but I'm not sure you're going to > like it. ;-) Don't solely use access rules for security. Instead, use the > Zope security framework. Protect the folder with a permission. It seems I have only 2 choices: 1.) I don't want to create a zope userid for each web user, because we have a proprietary product for authorization. I will use a generic zope userid for example web1. I protect my folder: only manager and zope user web1 can see this folder My folder has a access rule: It calls our proprietary product for authorization and if it grants access it will give the enduser the role web1. This could be done only if set access rule is done before zope checks for the permission, because otherwise the zope login prompt would appear first. Is that true ? 2.) If all this is not possible, I guess I have to change the sources of set access rule (or to create a product "mysetaccessrule") to enable _SUPPRESS_ACCESSRULE for role of manager only. Would this solve my problem ? 3.) The best would be if set accessrule could be improved to use _SUPPRESS_ACCESSRULE for role manager only. But I don't know if there are design issues making set access rule still not complete secure. I could try to do this, but I dont't know how to submit a proposal for a software change to a zope feature. With kind regards, Juergen Berger > > ----- Original Message ----- > From: <jbr(a)FIZ-Karlsruhe.DE> > To: <zope(a)zope.org> > Sent: Thursday, March 21, 2002 6:38 PM > Subject: Re: [Zope] set accessrule > > > > Hello, > > > > summary of set access rule with zope 2.5.0 > > > > 1.) for a folder testfolder I have set "Set Access Rule" to python script > accessHB > > to limit access > > > > 2.) as Chris McDonough has shown (thanks !) accessHB is working like: > > > > > > > From chrism(a)zope.com Thu Mar 21 19:21 MET 2002 > > > Subject: Re: [Zope] set accessrule > > > Date: Thu, 21 Mar 2002 13:26:28 -0500 > > > > > > Hi, > > > > > > I wouldn't bother to try to pass in REQUEST (the caller for access > rules > > > does not pass any arguments in to the script). Instead, get the > REQUEST > > > from context ala context.REQUEST. I think the test tab populates > REQUEST > > > for you via magic that doesn't happen when an access rule is called. > > > > > > Your script becomes: > > > > > > ----------------------------------------- > > > ## Script (Python) "accessruleHB" > > > ##bind container=container > > > ##bind context=context > > > ##bind namespace= > > > ##bind script=script > > > ##bind subpath=traverse_subpath > > > ##parameters= > > > ##title= > > > > > > if context.REQUEST.SESSION.get('MySessionId') == None: > > > context.REQUEST.RESPONSE.redirect('/rootfolder') > > > ----------------------------------------- > > > > > > > But there is a security problem with "Set Access Rule": > > > > Any user even the unauthorized can get access to the folder (which > > is restricted by set accessrule) if he adds _SUPPRESS_ACCESSRULE to the > url: > > > > http: ... testfolder/_SUPPRESS_ACCESSRULE > > > > gives access to restricted folder testfolder. > > > > This may be a bug or has been done to get access in case of emergency, but > > it makes set accessrule (more or less) useless. > > > > What can I do to prevent Zope to give access by adding > > _SUPPRESS_ACCESSRULE ? > > > > Do I have to modify the programmes which implement set access rule ? > > I even don't know where these programmes are located. > > > > With kind regards, Juergen Berger > >

3 2

Zope Build Failure
by Rengasamy, Samy 22 Mar '02

22 Mar '02

I installed Python-2.2 at /usr/share/apps/Python. I did the following: $ export LD_LIBRARY_PATH=/usr/share/apps/Python/lib/python2.2:$LD_LIBRARY_PATH $ export PATH=/usr/share/apps/Python/bin:$PATH Untarred Zope-2.5.0-src at /usr/share/apps and did: $ python w_pcgi.py The above failed as it could not locate Makefile.pre.in at /usr/share/apps/Python/lib/python2.2/config Then I copied it from /usr/share/apps/Python-2.2/Makefile.pre.in. Now it fails saying target boot not found in the Makefile. Am I missing a step here? Thanks in Advance, Samy Rengasamy.

3 2

Re: [Zope] set accessrule
by jbr＠FIZ-Karlsruhe.DE 22 Mar '02

22 Mar '02

Hello, summary of set access rule with zope 2.5.0 1.) for a folder testfolder I have set "Set Access Rule" to python script accessHB to limit access 2.) as Chris McDonough has shown (thanks !) accessHB is working like: > From chrism(a)zope.com Thu Mar 21 19:21 MET 2002 > Subject: Re: [Zope] set accessrule > Date: Thu, 21 Mar 2002 13:26:28 -0500 > > Hi, > > I wouldn't bother to try to pass in REQUEST (the caller for access rules > does not pass any arguments in to the script). Instead, get the REQUEST > from context ala context.REQUEST. I think the test tab populates REQUEST > for you via magic that doesn't happen when an access rule is called. > > Your script becomes: > > ----------------------------------------- > ## Script (Python) "accessruleHB" > ##bind container=container > ##bind context=context > ##bind namespace= > ##bind script=script > ##bind subpath=traverse_subpath > ##parameters= > ##title= > > if context.REQUEST.SESSION.get('MySessionId') == None: > context.REQUEST.RESPONSE.redirect('/rootfolder') > ----------------------------------------- > But there is a security problem with "Set Access Rule": Any user even the unauthorized can get access to the folder (which is restricted by set accessrule) if he adds _SUPPRESS_ACCESSRULE to the url: http: ... testfolder/_SUPPRESS_ACCESSRULE gives access to restricted folder testfolder. This may be a bug or has been done to get access in case of emergency, but it makes set accessrule (more or less) useless. What can I do to prevent Zope to give access by adding _SUPPRESS_ACCESSRULE ? Do I have to modify the programmes which implement set access rule ? I even don't know where these programmes are located. With kind regards, Juergen Berger

2 1

Re: Error with context.absolute_url() in Python script
by Harry Wilkinson 22 Mar '02

22 Mar '02

I should also mention that although the traceback shows that I'm using Zope 2.5.0, the same thing happens on a CVS checkout.

1 0