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RE: [Zope] Modifying __bases__
by Dan Pozmanter 25 May '05

25 May '05

Out of curiosity, I've noticed the word "evil" attached to patching of various and monkey kinds. Not "bad", or "unwise", but "evil", implying a morality associated with the act. What is morally wrong with modifying live objects in a dynamic language to achieve desired functionality? The idea is "I want to modify the zope core in a way that survives version to version, yet does not impose a specific use case on all zope users". -----Original Message----- From: Tino Wildenhain [mailto:tino@wildenhain.de] Sent: Friday, May 20, 2005 2:38 PM To: Dan Pozmanter Cc: Andreas Jung; zope(a)zope.org Subject: RE: [Zope] Modifying __bases__ Am Freitag, den 20.05.2005, 13:48 -0400 schrieb Dan Pozmanter: > Well, when I run it, I am able to do the following: > > ------------------------------------ > class A: > pass > > class B(A): > pass > > b = B() > > B.__bases__ = () > > print B.__bases__ > ------------------------------------ > > Not so on the version that comes with zope. > (B.__bases__ will remain unchanged.) > > What I aim to do is have the User Object inherit from a custom class > (AlienUser). Well, you can just inherit with a class from zopes extension classes. You cannot modify the class bases like this with extension classes. You can work around that like I did with the history (monkey) patch: http://www.zope.org/Members/tino/PatchHistory/view Otherwise it sounds evil and you failed to show the true motivation with your example above. Tino. PS: Votes for a true implementation in current zope instead of the monkey patch? If so, tell me.

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RE: [Zope] Modifying __bases__
by Dan Pozmanter 25 May '05

25 May '05

Going with 2.8 sounds like a rather good solution. -----Original Message----- From: zope-bounces(a)zope.org [mailto:zope-bounces@zope.org] On Behalf Of Chris McDonough Sent: Friday, May 20, 2005 3:01 PM To: Paul Winkler Cc: zope(a)zope.org Subject: Re: [Zope] Modifying __bases__ You might also be able to do the __bases__ hack with Zope 2.8 (as long as Python 2.3+ allows you to assign to it), as it reimplements ExtensionClass using metaclasses instead of custom C hackery. On Fri, 2005-05-20 at 14:46 -0400, Paul Winkler wrote: > On Fri, May 20, 2005 at 01:48:46PM -0400, Dan Pozmanter wrote: > > What I aim to do is have the User Object inherit from a custom class > > (AlienUser). > > You can do that in two ways off the top of my head: > > 1) the good way: write a custom UserFolder. > You could probably get away with just inheriting from UserFolder and > overriding _doAddUser(). > > 2) the hacky way: monkeypatch User.py to replace SimpleUser with your > class. > > either way the stuff you are interested in is in AccessControl/User.py. > > _______________________________________________ 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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It is a bug ? 404 error onfly
by fowlertrainer＠citromail.hu 25 May '05

25 May '05

Hi ! My contributor have a problem. His problem is very interesting, but it is in php. I try to help, but I get same problem in Zope. The problem is that: He have a site, and he is paranoid. He is not use static pages to avoid penetrations. So: in a dynamic page he is check the request. If parameters are wrong, he is want to set the resp. header status to 404. (This is a file downloader method, and if the file is invalid, he want to answer 404 - page not found.) He is not want to set location to a static 404 error page (because he is want to "protect" the orig. URL). When he is send header with php to Mozilla, or Opera, these browsers are showing blank page. IE is showing good page (404). Then I try to write this example in Zope, to help it: # test2.py # request = container.REQUEST resp=RESPONSE = request.RESPONSE resp.setStatus(404) When I try this, I get same result in Zope (/test2). So: what is the problem ? And what is the solution ? Thanx for help: ft

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Can ZPT form call a url?
by James O'Keefe 25 May '05

25 May '05

On our website we have a form where by a person can subscribe to our announcements list. It is the standard mailman form. We would like to expand on that form such that a user can enter their email address and zip code which we would log to our database and then call the url to subscribe the person in the mailman list. Is there a way to do this? Thanks! Jamie

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More tolerant Stripogram (solution)
by Jaroslav Lukesh 25 May '05

25 May '05

Hi all, I was extend SquishDot with wysiwyg editor (origin: vsbabu ieeditor). But it was not accept many tags due too small number of allowed html attributes in stripogram. I was patch stripogram to be more tolerant for eg., tables and other tags (missings: 'html' and 'body'). Make changes to following variables in html2safehtml.py, __init__.py and select your acceptable tags and make changes your code from where you are calling html stripping (for example in SquishDot 1.5 it is SquishSite.py, line 408). can_close = ['ul','li','p','dd','dl','dt','ol','option','bdo','listing','map','optgroup','option','param', 'marquee','menu','multicol','nobr','noembed','noframes','nolayer','noscript','plaintext','pre','q','rt','ruby','s','samp', 'b','i','u','big','small','em','strong','blink','blockquote','center','cite','code','tt','ins','kbd','keygen', 'table','del','strike-thru','dfn','fieldset','font','form','frame','frameset','label''caption','legend', 'h1','h2','h3','h4','h5','h6','head','iframe','ilayer','layer','object','select','strike','sub','sup', 'trow','thead','tbody','textarea','tr','tt','var','xml','xmp','title', 'div','span','a','abbr','acronym','area','th','td'] never_close = ['br','wbr','hr', 'input', 'isindex','base','meta','basefont','bgsound','button','spacer', 'col','colgroup','embed','isindex','link', 'img'] If you want to save space ant you put 'td', 'th','tr', 'p' etc to never_close (which is acceptable for browsers), stripping will destroy html code :-( I dont know if some tag is missing (so sorry), it was done with "visibone web designer's html card" on the desk, not w3c. Best Regards, -- Jaroslav Lukesh ----------------------------------------------------------- This e-mail can not contain any viruses because I use Linux

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display object without index_html
by Christopher Rivard 25 May '05

25 May '05

i am developing a Zope product (2.7) with a "homepage" content type and want this object to display as the index of a folder. for other custom objects, i have display methods that call an index view ( using DTMLFile) of the object like this: #homepage view index_html = DTMLFile('dtml/indexHomepage', globals()) i want this object to display as the index of the folder without: folder/index_html/index_html however, when i render the object, i get: <Homepage at index_html> remove display: http://localhost:8080/www/index_html/index_html has an empty or missing docstring. Objects must have a docstring to be published. how can i ensure that an "homepage" object with an id of index_html will display as the index of a folder (without calling folder/index_html/index_html)? i hope i explained this coherently... any insight would be greatly appreciated- Thanks, Chris

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mod_zope development
by David Bear 25 May '05

25 May '05

a quick google on mod_zope yeilded http://codespeak.net/z3/modzope/ and some other very old stuff. Anyone know the status of this project? It is a new page... I'm interested in how Zope Corp views this project and what Zope corp may have in the future regarding apache style pluggins. -- David Bear phone: 480-965-8257 fax: 480-965-9189 College of Public Programs/ASU Wilson Hall 232 Tempe, AZ 85287-0803 "Beware the IP portfolio, everyone will be suspect of trespassing"

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Re: [Zope] newbie question
by Barry Drake 25 May '05

25 May '05

Thank you Phillip. I modified the zope.conf file as you suggested and did sudo ./zope stop ... usual msg sudo ./zope start ... usual msg Then generated the error. The error log shows the same output as before. Not only should the line number be one higher, I also put a dummy variable name on that line to generate a stupid error msg. How can it not be getting to that code? I've searched for another Zope instance, but found none. Also, you are saying that I probably will never get the Control Panel back on this site with Product Management tools; no Product refresh then, I suppose. I'll have to thank the previous developer, as you suggest! (of course there is no documentation either, arrgh!) If you can think of anything else, I'd appreciated it. Thanks. Barry --- Phillip Hutchings wrote: > > I modify utils.py, after saving a copy, in order > to > > obtain diagnostic output. Then I delete > utils.pyc, > > after saving a copy, in order to force a recompile > > (even used compilezpy.py for this a couple of > times). > > Zope never seems to use the new version. > > Restart Zope. Python will pick up the changes. Also, > if you're > modifying security code, make sure you set > security-policy-implementation to Python in > zope.conf, otherwise > you're using the C one, and no matter what changes > you make to the > Python scripts you won't see any changes. > > > I suspect that I have a fundamental > misunderstanding > > of how Zope uses code in the Products directory. > > > > Is Zope storing all the compiled byte code in the > > data.fs file? Is there a way to force Zope to use > new > > code? > > No. Refresh the product or restart Zope. > > > Also, the previous developer removed the Control > Panel > > putting Plone as the root of everything. How can > I > > get information that the Control Panel usually > > provides? > > Find a heavy object, find the developer, bring the > two together at > speed. Repeat until the problem is fixed. > > yoursite/manage will get you to the control panel. > If he's managed to > override /manage then you have problems... > > And the real problem: > > > TypeError: can only concatenate tuple (not "list") > to > > tuple > > Like it says, you're supplying a list, you want a > tuple. It looks like > you need to update PluginIndexes, I don't know where > they come from. > > > -- > Phillip Hutchings > http://www.sitharus.com/ > sitharus(a)gmail.com / sitharus(a)sitharus.com > _______________________________________________ > 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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Re: [Zope] newbie question
by Barry Drake 25 May '05

25 May '05

Thanks for your help. I really needed another brain to bounce things off of so I can get out of the rut I'm in. You've given me some fresh ideas to try. Thanks. Barry --- Phillip Hutchings wrote: > > Then generated the error. The error log shows the > > same output as before. Not only should the line > > number be one higher, I also put a dummy variable > name > > on that line to generate a stupid error msg. > > > > How can it not be getting to that code? I've > searched > > for another Zope instance, but found none. > > This is really odd. It sounds like it could be > getting patched > somewhere. Try raising exceptions from various > points in the method, > see if one gets there. > > > Also, you are saying that I probably will never > get > > the Control Panel back on this site with Product > > Management tools; no Product refresh then, I > suppose. > > I'll have to thank the previous developer, as you > > suggest! (of course there is no documentation > either, > > arrgh!) > > > > If you can think of anything else, I'd appreciated > it. > > If the /manage URL has been overridden it's probably > possible to fix > it. Try going to /manage_workspace, see if that > works. Is Zope behind > a proxy? It's possible that it's being done with a > URL rewrite > somewhere. > > -- > Phillip Hutchings > http://www.sitharus.com/ > sitharus(a)gmail.com / sitharus(a)sitharus.com > _______________________________________________ > 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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surprising interaction between Javascript and Zope
by Dennis Allison 24 May '05

24 May '05

We have a need to set a session variable concurrently with a user submitting a form on a mouse click. I accomplish this with a bit of JavaScript associated with the OnClick attribute of the form: location.replace('/setSesVar?var=nams&val=xxx;frm.submit(); which does the job except that the setSesVar script is executed twice, a fact we discovered by monitoring calls to the setSesVar script. Once with an incorrect parameter, and secondly with a correct parameter. There is probably some obvious explanation, but I am stumped. Setting invalid values into session variables, even transient invalid values, can cause problems.

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