March 2007 - Zope - Zope lists

Apache-Rewrite - Firewall - Problem
by Andreas Tille 23 Mar '07

23 Mar '07

Hi, I'm using an often recommended Apache-Zope rewrite setup to mask the internal folder structure in Zope. The cruxial line in my apache (Debian Etch packaged version 2.2.3) is RewriteRule ^(.*) http://a.b.c.d:9673/VirtualHostBase/http/a.b.c.d:80/myfolder/VirtualHostRoo… [P,L] where a.b.c.d is the visible address of the machine from outisde the firewall, myfolder the folder of my Zope application I want to provide under a.b.c.d:80 and as Debian users might are comfortable with 9673 the Zope port (default for Debian). This setup works fine for the old firewall which is not so strict as the new one, that causes the trouble. The new one exclusively enables port 80 (no 22, 25 etc.). If I try the rewrite rule above I get the following line in error.log: [<date>] [error] (110)Connection timed out: proxy: HTTP: attempt to connect to a.b.c.d:9673 (*) failed access.log says: 194.95.177.123 - - [23/Mar/2007:13:46:58 +0100] "GET / HTTP/1.0" 503 405 For Debugging purpose I also write a debugging log: (the IP-Adress is replaced by a.b.c.d and the visible DNS name by visible.name) 194.95.177.123 - - [23/Mar/2007:13:46:58 +0100] [visible.name/sid#81869c0][rid#81dc4c0/initial] (2) init rewrite engine with requested uri / 194.95.177.123 - - [23/Mar/2007:13:46:58 +0100] [visible.name/sid#81869c0][rid#81dc4c0/initial] (3) applying pattern '^(.*)' to uri '/' 194.95.177.123 - - [23/Mar/2007:13:46:58 +0100] [visible.name/sid#81869c0][rid#81dc4c0/initial] (2) rewrite '/' -> 'http://a.b.c.d:9673/VirtualHostBase/http/a.b.c.d:80/agi/VirtualHostRoot/' 194.95.177.123 - - [23/Mar/2007:13:46:58 +0100] [visible.name/sid#81869c0][rid#81dc4c0/initial] (2) forcing proxy-throughput with http://a.b.c.d:9673/VirtualHostBase/http/a.b.c.d:80/agi/VirtualHostRoot/ 194.95.177.123 - - [23/Mar/2007:13:46:58 +0100] [visible.name/sid#81869c0][rid#81dc4c0/initial] (1) go-ahead with proxy request proxy:http://a.b.c.d:9673/VirtualHostBase/http/a.b.c.d:80/agi/VirtualHostRoot/ [OK] This is exactly the rewrite log I get on the machine that works perfectly behind the old firewall, but the niew one cases the strange error above. When I searched the web with the string in my error.log I stumbled upon the site http://www.dharwadkar.com/weblog/apache_fc6_01 which gives a slight hint, but there is no SELinux on my box at all but there is a hint to the firewall that might cause the problem. I have a vague suspection that this might be very slightly connected with the fact that when I formerly followed the recommendation of http://plone.org/documentation/how-to/plone-with-apache-1.3 to use "localhost" instead of the IP Adress of the server (or the FQDN) I blatantly failed because the localhost directive was interpreted by my browser that tried to access a local server (that did not existed). So I learned by this that these Rewrite directives are not addressed to the webserver to deliver a different page than requested but to tell the browser to ask for a different page on the server. If I think about this I wonder whether this is a reasonable strategy of redirection and because I do not regard this as reasonable I'm wondering whether there is an option I could change this behaviour in a way that the server directly answers with the result that can be obtained at the rewritten location - which would probably solve my problem. If my suspection that the Browser is advised to obtain the http://a.b.c.d:9673/... something address it is obviouse that this must fail because port 9673 is blocked and there would never be a chance to get any page. Kind regards Andreas. -- http://fam-tille.de

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Corrupted ZPT Locks Me Out Of Folder
by Mark, Jonathan (Integic) 23 Mar '07

23 Mar '07

Somehow a ZPT got corrupted inside one of my Zope 2.62/RedHat 7.3 folders. Now when I try to use the ZMI to open the folder containing the ZPT I get: Site Error An error was encountered while publishing this resource. ImportError Sorry, a site error occurred. Traceback (innermost last): Module ZPublisher.Publish, line 150, in publish_module Module ZPublisher.Publish, line 114, in publish Module Zope.App.startup, line 199, in zpublisher_exception_hook Module ZPublisher.Publish, line 98, in publish Module ZPublisher.mapply, line 88, in mapply Module ZPublisher.Publish, line 39, in call_object Module Shared.DC.Scripts.Bindings, line 252, in __call__ Module Shared.DC.Scripts.Bindings, line 283, in _bindAndExec Module App.special_dtml, line 174, in _exec Module DocumentTemplate.DT_In, line 705, in renderwob Module Products.PageTemplates.ZopePageTemplate, line 279, in om_icons Module Products.PageTemplates.PageTemplate, line 169, in _cook Module TAL.TALParser, line 27, in __init__ Module TAL.XMLParser, line 48, in __init__ Module TAL.XMLParser, line 72, in createParser I am able to view the other (non-corrupted) objects in the folder through the web. Now what? How do I delete the corrupted ZPT so I can use the ZMI to get into the folder?

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context.user at ImplPython.py
by Garito 23 Mar '07

23 Mar '07

Hi! I debug ImplPython.py to try to understand why my code don't work ok If you remember my last threat I wonder why some actions marked as Manager execute ok but other not You could refresh your mind about it at: http://archives.free.net.ph/message/20070312.184003.211597ad.en.html When validate (line 237) try to evaluate if the user is autenthicated and has right roles (line 436) the self._authenticated is set to TRUE but context.user is Anonymous User even when I'm authenticated to Garito Is this normal? (this is what causes the error for me) Thanks! -- Mis Cosas http://blogs.sistes.net/Garito

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mass editing timeout problem
by Allen Huang 23 Mar '07

23 Mar '07

I made a python product for a photo album and I have store a lot of pictures. But the problem arise when I have too many pictures of high resoution that taken up too much hdd space so I have written some codes in dtml and python to resize and reduces each image size in zodb without download any pictures. I written my code so it informs me on dos command prompt about what picture it is processing and how long it took until starts the next one. The process started fast, but it gradually slows down and eventually my web browser (my interface to start the process) timeout but the command prompt is still running. I waited until the command prompt finish all the picture and click open the picture in zope and no action was done on any pictures that was supposely to be resized. I try the same process but targeted only one folder (less pictures)and the process worked fine and all the picture were resized accordingly and the web browser didn't timeout. How come nothing happened when the browser timeout?? ____________________________________________________________________________________ Expecting? Get great news right away with email Auto-Check. Try the Yahoo! Mail Beta. http://advision.webevents.yahoo.com/mailbeta/newmail_tools.html

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Re: open image in a fitted new window
by Alan 23 Mar '07

23 Mar '07

Thanks Tres and Tino. BTW Tino, what do you mean with "...or uses layers the big view on top with little DOM action (preferred)..." something like passing the mouse point over the picture and have the full-size version of the image? Cheers, Alan On 22/03/07, zope-request(a)zope.org <zope-request(a)zope.org> wrote: > Tres Seaver schrieb: > ... > > The only trick here is to get the javascript to include the "dynamic" > > URL; everything else is not specific to Zope or ZPT. Here is the hack > > I usually use for that:: > > > >  > > <script type="text/javascript" lang="JavaScript" > > tal:define="img_url image/absolute_url" > > tal:content="string:var img_url='${img_url}';"></script> > > > > Your popup javascript can then refer to the 'img_url' JS variable to set > > the window location. > > > > > A little bit cleaner approach would be to have an ordinary link: > > <a class="magnify" href="path/to/big/image"><img src="path/to/thumbnail" > width, height ... /></a> > > > and have a general javascript which scans thru the DOM after load, > finds the a-objects with class-attribute magnify and installs > an handler for mouse click which overrides the usual link action > and either pops up a window or uses layers the big view on top > with little DOM action (preferred). You dont even net buzzy "Ajax" > for this. The URL for the big picture is just encoded in the HTML > already, so you can use the usual tal: attributes to define in > ZPT. > > The result is clean xhtml code which works in any case and only > is improved in case of javascript beeing available. > > Regards > Tino

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Help me some error when I complie Zope!
by Duc Toan 23 Mar '07

23 Mar '07

I'm using WindowsXP, Python 2.4.3, Visual Studio 2005. When I complie Zope 2.9.6 from source, it alway alert: running build_ext creating zope.proxy copying zope/proxy\proxy.h -> zope.proxy error: The .NET Framework SDK needs to be installed before building extensions for Python. NMAKE : fatal error U1077: 'C:\Python24\python.exe' : return code '0x1' Stop. Somebody help me solve this problem. Don't say me install .NET Framework, because I installed VS2005 include .NET Framework(I think so)

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How can I get all roles defined
by Josh Burvill 23 Mar '07

23 Mar '07

Hi everyone, I need to get all the roles that are defined in the security tab of a particular folder. I know how to get all roles that a user has got, but cannot find the above. Thanks, Josh

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can I use incremental search without managable Indexes ?
by joachim 22 Mar '07

22 Mar '07

Hi, I want to use Dieter Maurers incremental search. Can I do this without using his managable indexes ? -- Gruß Joachim

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CorpCalendar 1.4 and 1.7 issues
by Thomas Bennett 22 Mar '07

22 Mar '07

Long story short: Is it appropriate to change self.REQUEST.AUTHENTICATED_USER.name to self.REQUEST.REMOTE_USER ? It appears to work but I'm not sure if there may be repercussions on this. Thomas Long story: I had to make the change in getUserVariable(self, key, default=None) to view events CorpCalender 1.4 that was exported from Zope 2.6.1 and make the change in rememberUserVariable(self, key, value) to be able to add events in CorpCalendar 1.7 newly created calendars in Zope 2.9.6. I can't manage/edit any events in the imported CorpCalendar but I'm not real concerned about that because we can add the new calendars to carry on from the last dates on the old ones. Current configuration on server I am moving to: Zope Version (Zope 2.9.6-final, python 2.4.4, linux2) Python Version 2.4.4 (#1, Oct 23 2006, 13:58:00) [GCC 4.1.1 20061011 (Red Hat 4.1.1-30)] System Platform linux2 Using ZEO I am moving CorpCalendar 1.4 calendars from Zope 2.6.1 to CorpCalendar 1.7 on Zope 2.9.6 Traceback said 'name' was not an attribute of AUTHENTICATED_USER when trying to view events or add events The change I made was from user = self.REQUEST.AUTHENTICATED_USER username = user.name to user = self.REQUEST.AUTHENTICATED_USER username = self.REQUEST.REMOTE_USER in the functions def rememberUserVariable(self, key, value): and def getUserVariable(self, key, default=None): as shown below. def rememberUserVariable(self, key, value): """ set in stone """ cookiekey = '__corpcal_%s'%key.replace(' ','') user = self.REQUEST.AUTHENTICATED_USER username = self.REQUEST.REMOTE_USER # username = user.name # cookie then = DateTime()+300 then = then.rfc822() response = self.REQUEST.RESPONSE response.setCookie(cookiekey, value, expires=then, path='/') if username.lower().replace(' ','') != 'anonymoususer': _user_vs = self._user_variables if not self._user_variables.has_key(username): _user_vs[username] = {} _user_vs[key] = value self._user_variables = _user_vs def getUserVariable(self, key, default=None): """ get from stone """ cookiekey = '__corpcal_%s'%key.replace(' ','') user = self.REQUEST.AUTHENTICATED_USER username = self.REQUEST.REMOTE_USER # username = user.name # cookie if self.REQUEST.cookies.has_key(cookiekey): return self.REQUEST.cookies.get(cookiekey) if username.lower().replace(' ','') != 'anonymoususer': if self._user_variables.has_key(username): if self._user_variables[username].has_key(key): return self._user_variables[username][key] return default Thomas -- ==================================================================== Thomas McMillan Grant Bennett Appalachian State University Computer Consultant III P O Box 32026 University Library Boone, North Carolina 28608 (828) 262 6587 If it's not as simple as possible to try it, then the barrier to entry is too high. Library Systems Help Desk: http://www.library.appstate.edu/help/ ====================================================================

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dtml Z SQL doubt
by Remil Mathew 22 Mar '07

22 Mar '07

Hi all, I need to insert a row to mysql table if the corresponding data not exist, if it exist i need to update the row. Can we do it using a single Z SQL method. Many thanks Anz

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