March 2000 - Zope - Zope lists

<dtml-var x missing> doesn't work?
by Chris Withers 30 Mar '00

30 Mar '00

Hi, I'm doing a back link to go on a page (yes, I know browsers have back buttons, but some people don't like to use them ;-) which is easy enough: <A href="<dtml-var "REQUEST.environ['HTTP_REFERER']">">Back</A> except that if there is no referer, you get a key error. So I thought I'd try the following: <A href="<dtml-var "REQUEST.environ['HTTP_REFERER']" missing='/'>">Back</A> But I still get a key error. I thought the 'missing' attribute was supposed to catch that? Chris

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ISP that supports Zope
by Anders Eriksson 30 Mar '00

30 Mar '00

Hello! My current ISP has no interest in supporting Zope and will not install some kind of 'Long Running Process', so I can't install it myself... Can someone recommend an ISP that supports Zope? I found Armored Internet, but it seems like they only support Zope for Business Services (and they also charge $37.50/month for it). So if someone knows an another ISP, preferable cheaper, PLEASE let me know! // Anders -- Livet är bara en period som man ska överleva

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RE: [Zope] Logout with standard basic authentification
by Marcus Collins 30 Mar '00

30 Mar '00

Thanks for pointing that out. As I understand it, this is a limitation of the HTTP Basic Auth. spec. RFC 2617 deals with this, and says that a client may preemptively send the Auth. header with requests without receipt of another challenge (section 2). The browser sends this information for every request in the zope realm (if it didn't, you'd get the login box on every page). The server also sends an authentication required header for every page that is protected, so this behaviour in fact is quite logical. The only way around it is to use a different authentication mechanism, like Generic User Folder, et al. Oh, yeah, and I meant 401 Unauthorised... what a week... -- Marcus > -----Original Message----- > From: Terry Kerr [mailto:terry@adroitnet.com.au] > Sent: 30 March 2000 13:06 > To: Marcus Collins; zope(a)zope.org > Subject: Re: [Zope] Logout with standard basic authentification > > > The problem with this is that the browser will not clear its > cache of this > valid username/password unless the user clicks 'OK' on the > login dialog box > that pops up. If the user clicks 'Cancel' then the browser > assumes that > the user doesn't want to change the username/password, and keeps the > existing one in cache, hence, a reload of the page will be > successfull. > > Does anyone know of any tricks to get around this? > > terry > > Marcus Collins wrote: > > > Hi, > > > > With basic authentication, the user's browser caches the > username and > > password, and sends them along with each request. All you can do to > > invalidate the cached values is raise an "Unauthorized" exception. > > > > <dtml-raise type="Unauthorized"> > > You have been logged out. Please log in again. > > </dtml-raise> > > > > This sends an HTTP 500 Unauthorized back to your browser, > which should > > display the basic auth. login box again. > > > > See > http://www.zope.org/Documentation/Guides/DTML-HTML/DTML.12.html for > > details. > > > > hth, > > > > -- Marcus > > > > > -----Original Message----- > > > From: ibriones [mailto:ibriones@amutis.com] > > > Sent: 30 March 2000 10:36 > > > To: zope(a)zope.org > > > Subject: [Zope] Logout with standard basic authentification > > > > > > > > > I have tried to logout with standard basic authentification, > > > but I have > > > not seen nothing in Mailing List. > > > Only I have seen log out with cookie-based > authentication, but i have > > > to use standard authentification. I don't know how i can do it. > > > What can I do to logout with standard basic authentification? > > > > > > Thanks > > > > > > -- > > > Ismael Briones Vilar Administrador de Sistemas > > > ibriones(a)amutis.com Amutis Telecomunicaciones S.A. > > > Tlf: +34 96.353.67.67 Gran Vía Marqués del Turia, 27, 1 > > > Fax: +34 96.353.53.58 46005 Valencia (Spain) > > > > > > > > > > > > > > > _______________________________________________ > > > 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 ) > > > > > > > _______________________________________________ > > 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 ) > >

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RE: [Zope] Logout with standard basic authentification
by Marcus Collins 30 Mar '00

30 Mar '00

Hi, With basic authentication, the user's browser caches the username and password, and sends them along with each request. All you can do to invalidate the cached values is raise an "Unauthorized" exception. <dtml-raise type="Unauthorized"> You have been logged out. Please log in again. </dtml-raise> This sends an HTTP 500 Unauthorized back to your browser, which should display the basic auth. login box again. See http://www.zope.org/Documentation/Guides/DTML-HTML/DTML.12.html for details. hth, -- Marcus > -----Original Message----- > From: ibriones [mailto:ibriones@amutis.com] > Sent: 30 March 2000 10:36 > To: zope(a)zope.org > Subject: [Zope] Logout with standard basic authentification > > > I have tried to logout with standard basic authentification, > but I have > not seen nothing in Mailing List. > Only I have seen log out with cookie-based authentication, but i have > to use standard authentification. I don't know how i can do it. > What can I do to logout with standard basic authentification? > > Thanks > > -- > Ismael Briones Vilar Administrador de Sistemas > ibriones(a)amutis.com Amutis Telecomunicaciones S.A. > Tlf: +34 96.353.67.67 Gran Vía Marqués del Turia, 27, 1 > Fax: +34 96.353.53.58 46005 Valencia (Spain) > > > > > _______________________________________________ > 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 ) >

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my code doesn't render the if *OR* the else!
by Matthew Parslow 30 Mar '00

30 Mar '00

I have here some Code I'm using to mail people their passwords. when get_returner_id doesn't have a ContactEmail value, it hsould say "you don't have an entry blah blah", but it displays nothing. if there IS an entry, it works fine. just wondering wtf is going on here. (sorry about the code posting) <dtml-if Email> <dtml-in "get_returner_id(field='ContactEmail',value=Email)"> <dtml-if ContactEmail> Your Password has been emailed to the contact email listed in your return ID entry, <dtml-var ContactEmail><P> <dtml-sendmail smtphost="mail.umd.com.au"> To: "UMD Customer" <<dtml-var ContactEmail>> From: "Unique Micro Design, Service Division" <matt(a)umd.com.au> Subject: Your returner ID and Password Someone has requested to be emailed your returns ID password Your return ID: <dtml-var ReturnerID> Your Password: <dtml-var Password> </dtml-sendmail> <dtml-else> I'm sorry, a match was not found in the database.<P> <A HREF=mailpassword>Back</A> </dtml-if> </dtml-in> <dtml-else> (email entering form here) </dtml-if> Regards, Matthew Parslow

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SiteAccess officially breaks Zope 2.1.5, new version soon
by Evan Simpson 30 Mar '00

30 Mar '00

For those of you out there who use SiteAccess (or are considering using it) be aware that it dynamically patches ZPublisher to add a hook to the traversal process. This is a 'gorilla patch' which simply replaces a very large method, and is subject to breakage in the rare case where a new Zope release (such as 2.1.5) includes a change to this method. Zope 2.1.5 *will not work* with SiteAccess 1.0.0 or earlier. I expect to release version 1.0.1 this evening, which will be compatible with all 2.x versions of Zope, as well as fixing FTP access and providing a new feature to deal with SSL access. Cheers, Evan @ digicool & 4-am

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Can I have 'pointers' to ZSQL Methods?
by Jason Wong 30 Mar '00

30 Mar '00

I need to do something like this: <dtml-in "<dtml-var qry_name>" or <dtml-in "_['<dtml-var qry_name>']"> where qry_name contains the name of the ZSQL Method that I want to use. However neither of the above works, the latter gives a traceback error, which I daren't reproduce here because of it's length :) The above is used inside a DTML Method which is called by passing parameters to it from a DTML Document. qry_name is one of the parameters being passed. Any help appreciated. thanks - Jason Wong Digital View Ltd 2201 Nanyang Plaza 57 Hung To Road Kwun Tong HONG KONG Tel: +852-2861-3615 Fax: +852-2520-2987 www.digitalview.com

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RE: [Zope] Can I have 'pointers' to ZSQL Methods?
by Marcus Collins 30 Mar '00

30 Mar '00

Try <dtml-in "_[qry_name]"> ... </dtml-in> where qry_name is a string holding the name of your ZSQL method. > <dtml-in "<dtml-var qry_name>" > <dtml-in "_['<dtml-var qry_name>']"> Note that you cannot use <dtml-xxx>'s inside a python expression (that's why you got the traceback), but that variables in the REQUEST namespace are automatically available inside your python expression. hth, -- Marcus > I need to do something like this: > > <dtml-in "<dtml-var qry_name>" or > > <dtml-in "_['<dtml-var qry_name>']"> > > where qry_name contains the name of the ZSQL Method that I > want to use. > > However neither of the above works, the latter gives a > traceback error, > which I daren't reproduce here because of it's length :) > > The above is used inside a DTML Method which is called by > passing parameters > to it from a DTML Document. qry_name is one of the parameters > being passed. > > Any help appreciated. > > thanks > - > Jason Wong > Digital View Ltd > 2201 Nanyang Plaza > 57 Hung To Road > Kwun Tong > HONG KONG > Tel: +852-2861-3615 > Fax: +852-2520-2987 > www.digitalview.com > > > _______________________________________________ > 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 ) >

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RE: [Zope] Can I have 'pointers' to ZSQL Methods?
by Jason Wong 30 Mar '00

30 Mar '00

Thanks Jon, got it working now. - Jason Wong > -----Original Message----- > From: Jonothan Farr [mailto:jfarr@real.com] > Sent: 30 March 2000 11:41 > To: Jason Wong > Subject: Re: [Zope] Can I have 'pointers' to ZSQL Methods? > > > try: <dtml-in "_[query_name]">, possibly <dtml-in "_[query_name](this())"> > > -jfarr > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Hi! I'm a signature virus. > Copy me into your .sig to join the fun! > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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RE: [Zope] Help ...........Desperate
by Marcus Collins 30 Mar '00

30 Mar '00

[exec. summary -- concurrent requests becoming serialised; suggestions] Hi, I ran your test script on our zope server, and managed to view many other pages while zope was parsing the page... It looks like you might not have enough available threads (or maybe database connections?). It's strange that only one request at a time is processed -- are you perhaps using Zope in single-threaded mode (using pcgi_publisher; see doc/WEBSERVER.txt for details)? You can set the number of threads Zope uses by changing NUMBER_OF_THREADS in Zope.cgi; the default is 4. Note that increasing this number will also increase Zope's memory footprint, as each thread gets its own copy of the persistent object space. It may also be that your machine is simply choking on that test script -- it takes a while for zope to parse and render it. Despite python switching between threads every n bytecodes, such a script (rendering one million items) is going to put quite a load on the machine! On your database queries you may be using a database adaptor that doesn't give up the global python interpreter lock during transactions. This prevents other threads from executing. What database and database adaptor version are you using? See http://www.zope.org/Members/petrilli/DARoadmap for details. There is a brief description of why the interpreter lock exists in the python FAQ, section 4.88 (http://www.python.org/doc/FAQ.html#4.88) Although unlikely with only one user, it's also possible that you could be running out of database connections. By default, a maximum of seven connections can be opened to any database you add. This limit can be set by adjusting pool_size in zope_dir/lib/pyhthon/ZODB/DB.py (later versions of Zope allow you to tweak these things in a custom_zodb.py file; try searching the mailing list for details). Note that increasing pool_size will again increase Zope's memory footprint, as query results are cached on a per-connection basis. hth, -- Marcus > -----Original Message----- > From: Daniel G. Rusch [mailto:drusch@globalcrossing.com] > Sent: 29 March 2000 22:45 > To: zope(a)zope.org > Subject: [Zope] Help ...........Desperate > > > Help very desperate.... > > > We have a Zope site running: > Zope version: Zope 2.0.1 (source release, python 1.5.1, linux2) > (also happens on a seperate box running Zope 2.1.6) > Python version: 1.5.2 (#6, Sep 22 1999, 10:32:58) [GCC 2.8.1] > System Platform: sunos5, Ultra-2 > > It seems that if a user hits a page that either does an > intense database > query or iterates over a large number of items, all other users are > prevented from accessing any page....! This problem may to be > related to > the dtml-in but we are not sure. > > For example suppose user A hits the following page (before user B hits > his page): >  > <dtml-in "_.range(999)"> > <dtml-var "_['sequence-item']"> > <dtml-in "_.range(999)"> > <dtml-var "_['sequence-item']"> > </dtml-in> > </dtml-in> >  > > And User B tries to access this page: > <html><head> > </head> > <body> > This is test > </body> > </html> > > User B is prevented from accessing his page until User A's > page returns. > > Please help ASAP > > Dan > > _______________________________________________ > 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 ) >

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