July 2004 - Zope - Zope lists

RE: [Zope] Zope 2.7.2 breaks Plone 2.0.3 login_form
by Passin, Tom 23 Jul '04

23 Jul '04

> From: Fred Drake [mailto:fdrake@gmail.com] > On Fri, 23 Jul 2004 15:15:50 -0400, Passin, Tom <tpassin(a)mitretek.org> > wrote: > > It's probably not quite that CDATA sections "aren't meant to protect you > > from everything." They _are_, at least in xml (where everything means > > "<" and "&"). Chances are that the browser here is getting an HTML > > file, or at least thinks it is, and HTML does not really know about > > CDATA sections. > > Hey Tom! > > This is definately for text/html and not any sort of XML, which uses a > different parser. > > The problem here isn't in the browser; it's a matter of how the > HTMLParser module from Python's standard library is treating the "</" > pair. As I read it, even in a CDATA marked section, "</" is supposed > to be recognized as a "delimiter in context." HTMLParser is doing > exactly that, but HTML authors are not accustomed to parsers that are > more strict than those found in browsers. Thus, this sort of > confusion can arise, and especially so when a more browser-like parser > was being used to begin with. > Hey, Fred! Don't want to harp on this but the XML Rec does not agree with the notion of "delimiter in context". A CDATA section exists specifically to say "This may look like markup but it isn't". The XML 1.0 Rec says 'Definition: CDATA sections MAY occur anywhere character data may occur; they are used to escape blocks of text containing characters which would otherwise be recognized as markup. CDATA sections begin with the string "<![CDATA[" and end with the string "]]>":"' And also it goes on to say this - 'Within a CDATA section, only the CDEnd string is recognized as markup, so that left angle brackets and ampersands may occur in their literal form; they need not (and cannot) be escaped using "<" and "&"' I'd say that is pretty definitive, wouldn't you? If there is some folk "knowledge" about CDATA sections built into the parser that thinks otherwise, I'd say the parser is non-conformant about CDATA sections (hmm, I almost wrote that "C-sections"!). Anyway, as I said I have seen this problem myself, and it occurred entirely within the browser (without any CDATA sections) - no server involved - and that's where I would look first. At least in my cases, it must have been the browser's html parser getting confused about the brackets in the javascript. Breaking up the strings as you suggested worked around the problem. Probably has something to do with assumptions being made about where newlines can go relative to markup tokens, I suppose. Cheers, Tom P

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Re: [Zope-DB] How to prevent the manage from outer connections ?
by Dieter Maurer 23 Jul '04

23 Jul '04

fowlertrainer(a)anonym.hu wrote at 2004-7-23 08:36 +0200: >... >It is an intranet site, but some functions are needed to access from >"outernet". > >I don't want to anyone manage my site from outside. >How to prevent these requests ? A "PostAuthenticationHook" might help you. In such a hook, you can check whether the current user has a "Manager" role and raise "Unauthorized" when it comes from outside your intranet. Zope does not support "PostAuthenticationHooks" out of the box (I think, at least). But there are two implementations around: one is in the Zope collector, the other is on my Zope page <http://www.dieter.handshake.de/pyprojects/zope> -- Dieter

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RE: [Zope] Zope 2.7.2 breaks Plone 2.0.3 login_form
by Passin, Tom 23 Jul '04

23 Jul '04

> Fred Drake > And still another is to split your string literals where they look > like markup, because even CDATA marked sections aren't meant to > protect you from everything. Try changing the line with the </a> to > > href="enabling_cookies">How to enable cookies<' + '/a>.<' + '/div>'); > > and the problem should go away. It's probably not quite that CDATA sections "aren't meant to protect you from everything." They _are_, at least in xml (where everything means "<" and "&"). Chances are that the browser here is getting an HTML file, or at least thinks it is, and HTML does not really know about CDATA sections. I also have sometimes had to break up my string literals to prevent this kind of problem (not with Plone, but in other applications). It's probably better to build the string outside of the document.write(), too. Cheers, Tom P

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Installing Zope 2.7.2
by Pascal Francq 23 Jul '04

23 Jul '04

Hi, I have compile and install Zope 2.7.2 (on a linux platform). When I start the zope server with the 'runzope' command, I have the following output: Traceback (most recent call last): File "/usr/lib/zope/lib/python/Zope/Startup/run.py", line 50, in ? File "/usr/lib/zope/lib/python/Zope/Startup/run.py", line 19, in run File "/usr/lib/zope/lib/python/Zope/Startup/__init__.py", line 51, in start_zope File "/usr/lib/zope/lib/python/Zope/Startup/__init__.py", line 230, in startZope File "/usr/lib/zope/lib/python/Zope/__init__.py", line 46, in startup File "/usr/lib/zope/lib/python/Zope/App/startup.py", line 30, in ? File "/usr/lib/zope/lib/python/OFS/Application.py", line 17, in ? File "/usr/lib/zope/lib/python/App/Product.py", line 44, in ? File "/usr/lib/zope/lib/python/HelpSys/__init__.py", line 15, in ? File "/usr/lib/zope/lib/python/HelpSys/HelpSys.py", line 18, in ? File "/usr/lib/zope/lib/python/Products/ZCatalog/__init__.py", line 16, in ? File "/usr/lib/zope/lib/python/Products/ZCatalog/ZCatalog.py", line 29, in ? File "/usr/lib/zope/lib/python/Products/ZCatalog/Catalog.py", line 17, in ? ImportError: No module named MultiMapping Anyone an idea? Thanks. -- Prof. Pascal Francq Université libre de Bruxelles CAD/CAM Department Avenue F.D. Roosevelt, 50 CP 165/14 B-1050 Brussels BELGIUM Tel. +32-2-650 47 65 Fax +32-2-650 47 24

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Zope 2.7.2 breaks Plone 2.0.3 login_form
by Peter Mayne 23 Jul '04

23 Jul '04

I've just installed Zope 2.7.2 and attempted to browse to my Plone 2.0.3 /manage form. Instead of getting the expected page, I get: Error Type RuntimeError Error Message FS Page Template login_form has errors: Compilation failed. <pre>TAL.HTMLTALParser.NestingError: Open tags <html>, <body>, <div>, <script> do not match close tag </a>, at line 63, column 188</pre> Looking inside ./CMFPlone/skins/plone_forms/login_form.pt, this relates to the '<' of the '</a> tag: <script type="text/javascript"> // <![CDATA[ if (cookiesEnabled && !cookiesEnabled()) { document.writeln('<div class="portalMessage"><img src="info.gif">Cookies are not enabled. You can not log in if they are turned off. <a href="enabling_cookies">How to enable cookies</a>.</div>'); } // ]]> </script> One workaround was to comment out this chunk of script. Another one was to revert back to Zope 2.7.1. :-) I have no idea if this is Zope tightening up and rejecting an incorrect Plone template, or an introduced bug in Zope which is rejecting a correct Plone template. Has anyone else seen this, or is it a peculiarity of my site? PJDM -- Peter Mayne Spherion Technology Solutions Canberra, ACT, Australia "You're given the form, but you have to write the sonnet yourself. What you say is completely up to you." - Mrs. Whatsit

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AW: AW: [Zope] Virtual Host Monster and DynDns
by Holger Butschek 23 Jul '04

23 Jul '04

Hi Chuck, I have configured my Apache2-script now as follows: <VirtualHost butschekconsult.dyndns.org>DocumentRoot /srv/www/htdocs ServerName butschekconsult.dyndns.org <IfModule mod_rewrite.c> RewriteEngine On # the following needs to be writeable by Apache ## every other URL is fetched from Zope RewriteRule ^/(.*) http://butschekconsult.dyndns.org:8080/butschek-consult.de/VirtualHostBase/… [P,L] </IfModule> </VirtualHost> If I call the url: "http://butschekconsult.dyndns.org:8080/butschek-consult.de", the url should be rewritten, shouldn't it. Cheers, Holger P.S. My mass-domain is called http://butschek-consult.de. My server at home is reachable with http://butschekconsult.dyndns.org. At my webspace "butschek-consult.de" I have put a meta-tag-forwarding to http://butschekconsult.dyndns.org:8080/butschek-consult.de. This should be rewritten to www.butschek-consult.de. -----Ursprüngliche Nachricht----- Von: Chuck Amadi [mailto:chuck@smtl.co.uk] Gesendet: Dienstag, 20. Juli 2004 18:40 An: h.butschek(a)butschek-consult.de Cc: zope.zope.org(a)smtl.co.uk Betreff: Re: AW: [Zope] Virtual Host Monster and DynDns Hi Mate Right you got the rewrite recipe I sent you - your site you need to follow the Howto below: Edit the Root Folder > VirtHostMonster > mappings > This is only for simple virtual hosting in a bare Zope server. Click the <mappings tab> Mine looks like this www.larve.com/live_larve_com test.larve.com/test_larve_com test-tvs.smtl.co.uk/tvs-test www.tvs.org.uk/tvs-live www.uwmef.org/www_uwmef_org survey.worldwidewounds.com/world-wide-wounds Yours will be blank thus add your site like below <mappings tab> www.mycompany.org/myplonesite Also within apache enable mod_rewrite #uncomment it and uncheck LoadModule rewrite_module and few others . All da best let me know what's happening as when I did the site it was temp measure until I learnt and got to grips with mod_rewrite and mappings for VHM. I hope this hepls I want be back to office until 1pm GMT. EMAIL ME IF STILL AS PROBLEM!! Chuck On Tue, 2004-07-20 at 16:35, Holger Butschek wrote: > Hi Chuck, > > I'm still quite a newbie in configuring Apache2. I have changed your > snipit to the following. Could this be correct. Do I have to paste any > code in the VHM, too. > > The following should then be pasted to the httpd.conf. Am I wright? > > Many thanks, > Holger > > <VirtualHost www.butschek-consult.de>DocumentRoot /srv/www/htdocs/ > > ServerName www.butschek-consult.de > > ScriptAlias /srv/www/htdocs/cgi-bin/ > > ErrorLog /srv/www/htdocs/log/error_log > > TransferLog //srv/www/htdocs/access_log > > > <IfModule mod_rewrite.c> > > RewriteEngine On > > # the following needs to be writeable by Apache > > ## every other URL is fetched from Zope > > #RewriteRule ^/(.*) http://stargazer.biotics.co.uk:8080/biotic/$1 > [P,L] > > RewriteRule ^/(.*) > http://butschekconsult.dyndns.org:8080/VirtualHostBase/http/www.butsch > ek > -consult.de:80/butschek-consult.de/VirtualHostRoot/$1 [P,L] > > </IfModule> > > </VirtualHost> > > -----UrsprÃ¼ngliche Nachricht----- > Von: Chuck Amadi [mailto:chuck@smtl.co.uk] > Gesendet: Dienstag, 20. Juli 2004 13:15 > An: h.butschek(a)butschek-consult.de > Cc: zope(a)zope.org > Betreff: Re: [Zope] Virtual Host Monster and DynDns > > > Hi you must use mod_rewrite rules in your Apache's httpd.conf > file.Thats assuming yuor ussing Apache as your web server to serve up > Zope . > > Here's a snippet of one of many our our organisations domains. > > > # biotic domains > > <VirtualHost www.zoobiotic.com www.biotic.org www.biotic.net > www.biotic.com www.biotic.net www.biotic.org>DocumentRoot > /var/usr/local/lib/docs/biotic/ > > ServerName www.biotic.com > > ScriptAlias /cgi-bin/ /var/usr/local/lib/docs/Common/cgi-bin/ > > ErrorLog /var/log/www.biotic.com-error_log > > TransferLog /var/log/www.biotic.com-access_log > > > <IfModule mod_rewrite.c> > > RewriteEngine On > > # the following needs to be writeable by Apache > > ## every other URL is fetched from Zope > > #RewriteRule ^/(.*) http://stargazer.biotics.co.uk:8080/biotic/$1 > [P,L] > > RewriteRule ^/(.*) > http://stargazer.biotics-lab.co.uk:8080/VirtualHostBase/http/www.bioti > c. > org:80/zoobiotic.com/VirtualHostRoot/$1 [P,L] > > </IfModule> > > </VirtualHost> > > I hope this helps as mt last employer we had the same problem until I > got going here mod_rewrite rules. > > Cheers > > Chuck > > > On Tue, 2004-07-20 at 10:41, Holger Butschek wrote: > > Hi folks, > > > > I have an problem useing the VirtualHostMonster. My Server can be > > connected by butschekconsult.dyndns.org:9080. Now, I'd like to host > > some pages. But I don't want the user always to type that string, I'd > > rather prefer him to type something like www.butschek-consult.de . For > > > that, I thought I could put an index.html-file at the > > mass-hosting-server that point to my butschekconsult.dyndns.org:9090 > > with something like http://butschekconsult.dyndns.org:9080/vhm_test/ . > > > The user should see the adress: www.butschek-consult.de . Do you > > have > > any ideas how to do that. > > > > Bye, > > Holger > > > > I have an apache 2.0 running, too. > > > > > > ----------------------------------------------------- > > Butschek IT Consulting > > > > Holger Butschek > > Hellenstrasse 27 > > 56179 Vallendar > > > > Telefon: 02 61 / 96 34 98 8 > > Fax : 02 61 / 96 37 75 7 > > Handy : 01 79 / 24 18 70 2 > > > > eMail : h.butschek(a)butschek-consult.de > > Web : http://www.butschek-consult.de > > Anfahrt: http://mail.map24.com/butschek-consult > > > > ----------------------------------------------------- > > > > Diese E-Mail enthÃƒÂ¤lt vertrauliche und/oder rechtlich > > geschÃƒÂ¼tzte > > Informationen. Wenn Sie nicht der richtige Adressat sind oder diese > > E-Mail irrtÃƒÂ¼mlich erhalten haben, informieren Sie bitte sofort den > > Absender und vernichten Sie diese Mail. Das unerlaubte Kopieren sowie > > die unbefugte Weitergabe dieser Mail ist nicht gestattet. > > > > This e-mail may contain confidential and/or privileged information. > > If > > > you are not the intended recipient (or have received this e-mail in > > error) please notify the sender immediately and destroy this e-mail. > > Any unauthorized copying, disclosure or distribution of the material > > in this e-mail is strictly forbidden. > > > > _______________________________________________ > > Zope maillist - Zope(a)zope.org > > http://mail.zope.org/mailman/listinfo/zope > > ** No cross posts or HTML encoding! ** > > (Related lists - > > http://mail.zope.org/mailman/listinfo/zope-announce > > http://mail.zope.org/mailman/listinfo/zope-dev ) -- Chuck Amadi, Systems Administrator, | http://www.smtl.co.uk/ Surgical Materials Testing Lab, | http://www.worldwidewounds.com/ Princess of Wales Hospital, S Wales | http://www.dressings.org/ Tel/Fax: +44 1656-752820 | chuck(a)smtl.co.uk

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RE: [Zope] New-style classes and PluggableBrains
by Jean-Francois.Doyon＠CCRS.NRCan.gc.ca 23 Jul '04

23 Jul '04

I do beleive new-style classes are not currently supported in Zope 2.7.x, due to issues with ExtensionClass. Zope 2.8 should do away with that issue, allowing you to use new-style classes. This, mind you, might not be applicable to you, as PluggableBrains might not be wrapped by ExtensionClass?? J.F. -----Original Message----- From: zope-bounces(a)zope.org [mailto:zope-bounces@zope.org]On Behalf Of Michael Ekstrand Sent: July 23, 2004 10:42 AM To: zope(a)zope.org Subject: [Zope] New-style classes and PluggableBrains I'm working on developing a PluggableBrains class for some SQL methods in my application in Zope 2.7.1 (running Python 2.3.3 as shipped in the Windows Zope installer), and I've got a couple quick questions. First, if my class inherits from object, does that break anything? It's also inheriting from Acquisition.Implicit and has security information (as an external method creates one and passes it off to protected code in a place or two). Second, if I have some property objects as members, will code accessing them elsewhere behave in a sane and reasonable manner? Will Zope recognize them properly? Most importantly, can I have some or all of the members that the Z SQL Method will be populating defined as properties in the class? TIA, Michael _______________________________________________ Zope maillist - Zope(a)zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )

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Enable and Use Custom Classes in Zope
by Istvan Albert 23 Jul '04

23 Jul '04

I posted this in the python group but then I thought it would be quite suited to this group too. So here is an opinion on how to enable custom classes in Zope. --------------------- mir nazim wrote: > Seems cool. Please eleborate it a bit. possibly with some examples. It is one of those things that are not well explained in the Zope docs ... adn this post too seems like it should belong to a Zope group. Yet I heard python people say that the Zope model does not allow one to approach a problem in a more rigorous, 'programatic' way. This is only partly true. Here is how one could go about it in what I think is the so called MVC, Model-View-Controller pattern. Let's say that we have a situation where one would need to make use of an instance of a custom User.User class located in a custom package named foo. (Note that I'm typing this in so it might have typos in it.) --- step 0. write and test the foo package and User.User class --- step 1. you need to deploy your package into the zope python. I use distutils: <zope_python> setup.py install the only thing here is that it is easy to forget and use the "other" python ... then you are trying to track probelms that don't actually exists, can be very annoying -- step 2. enable the classes in Zope. Create a folder in the Products directory called <whatever you want> Place the following __init__.py file in this folder: from AccessControl import allow_module, allow_class, allow_type from foo import User allow_module('foo.User') allow_class(User.User) allow_type(type(User)) -- step 3. to use your class here is the hello.py python script that read the user instance from a session. from foo import User hello_zpt = container['hello.zpt'] error_zpt = container['error.zpt'] user = container.REQUEST.SESSION.get(key='user', None) if user: # I can do here whatever I want to with the user instance if user.user_type == 'Troll': msg= 'Go away!' else: msg ='Howdy!' return home_zpt(user=user, msg=msg) else: return error_zpt(msg='Please log in!') --- step 4. in hello.zpt then I have something like this: A message for user <b tal:content="options/user/user_name"/> of type <b tal:content="options/user/user_type"/> : <b tal:content="options/msg"/> --- I believe that The User.User class -> hello.py -> hello.zpt chain forms what is called the MVC (Model-View-Controller) pattern. The model is the class instance itself, the controller is hello.py and the view is in hello.zpt. I found that it takes a lot of discipline to stay outside the zpt files without computing all kinds of intermediate results in them. When making small 'adjustments' it is very tempting to do them by defining some behavior inside the zpt. But then, invariably, after a few days I can't remember anymore how things work... So for me putting everything in the .py controllers is paying off. best, Istvan.

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New-style classes and PluggableBrains
by Michael Ekstrand 23 Jul '04

23 Jul '04

I'm working on developing a PluggableBrains class for some SQL methods in my application in Zope 2.7.1 (running Python 2.3.3 as shipped in the Windows Zope installer), and I've got a couple quick questions. First, if my class inherits from object, does that break anything? It's also inheriting from Acquisition.Implicit and has security information (as an external method creates one and passes it off to protected code in a place or two). Second, if I have some property objects as members, will code accessing them elsewhere behave in a sane and reasonable manner? Will Zope recognize them properly? Most importantly, can I have some or all of the members that the Z SQL Method will be populating defined as properties in the class? TIA, Michael

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Tal/Html Editor on Linux?
by Jerome R. Westrick 23 Jul '04

23 Jul '04

Hello to all.. Has somebody compiled a list of tools and how well the work with tal/html? Jerry

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