November 2002 - Zope

limited success. peserverance furthers.
by lee doolan 07 Nov '02

07 Nov '02

I posted a question a few hours ago concerning pcgi, apache and virtual hosts. I can now the Quick start page that starts: ,---- | Zope Quick Start | | Welcome to Zope, a high-performance object-oriented platform for | building dynamic Web applications. Here are some quick pointers to get | you started: | | | Read The Fine Manual. This document guides you through the whole | process of learning Zope, from logging in for the first time to | creating your own web applications. | | | There is a built-in interactive Zope Tutorial which gets you | started with some simple tasks using the Zope managment | interface. To use the tutorial, go to any Folder and select Zope | Tutorial from the add list and click th `---- When I click on the manage link and try to sign in with superuser 123, though, I get denied. I would be most grateful if anyone could help me in this matter Here is my virtual server setup: ,---- | ######################################################################## | ## ## | ## the subtractive primaries below are used for the so-called ## | ## 'static' pages of affero's web site ## | ## ## | ######################################################################## | #### CYAN (COM) #################################################### | ######################################################################## | | <VirtualHost 192.168.1.40:800> | ServerAdmin info(a)allseer.com | DocumentRoot /home/cyan/new_htdocs/ | ServerName cyan.office.affero.com | ErrorLog /home/logs/apache/cyan-error.log | CustomLog /home/logs/apache/cyan-access.log common | AddHandler cgi-script cgi | ScriptAlias /cgi /home/cyan/new_htdocs/cgi | | <Directory "/home/cyan/new_htdocs/"> | AllowOverride All | Options ExecCGI Indexes FollowSymLinks Includes | </Directory> | | RewriteEngine on | RewriteRule ^/(.*) /home/cyan/new_htdocs/cgi/Zope.cgi/$1 [l] | RewriteRule ^/(.*) /home/cyan/new_htdocs/cgi/Zope.cgi/$1 [e=HTTP_CGI_AUTHORIZATION:%1,t=application/x-httpd-cgi,l] | RewriteCond %{HTTP:Authorization} ^(.*) | | </VirtualHost> `---- and here is my /var/zope/access file: ,---- | superuser:123:* `---- __________________________________________________________ Outgrown your current e-mail service? Get 25MB Storage, POP3 Access, Advanced Spam protection with LYCOS MAIL PLUS. http://login.mail.lycos.com/brandPage.shtml?pageId=plus&ref=lmtplus

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PKI, SOAP with Zope?
by Teemu Yli-Elsilä 07 Nov '02

07 Nov '02

Dear All, We are considering Zope as a platform for product development in our company. There are a few important requirements the availability of which was not obvious to me. 1. PKI support for authenticating users using client-side certificates (obviously over a SSL connection). To be used with smart cards as well as certificate files as client-side authentication vessel (ie. no username/password prompts). 2. Related to the former, digital signing of content on the Zope server. 3. Further related: Encrypted storage for selected documents on the server (PGP/whatever). 4. SOAP support, acting as both server and client. Can anyone enlighten me as to the possibilities of having Zope support these? And, if a product is not available, what would it take to implement such support in Zope? We are currently only beginning to train our staff in Python/Zope, so any insight would be greatly appreciated. The products would likely utilize the CMF/Plone frameworks. Thanks in advance for any help, -- Teemu Yli-Elsilä Software Designer, Mawell Oy http://www.mawell.com/

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Limit transaction undo
by Heimo Laukkanen 07 Nov '02

07 Nov '02

>We don't need the saved transactions since we do all the production on >another server. > >Today we manually pack the ZODB regularly, but it would be nice to >either >stop or limit this feature. I have searched but haven't found any hint >on >how to do this. Is it possible? Haven't used myself, but in the book Zope Web Application Development and Content Management is section about ExtrenalMount product - that allows you to have a no-undo section of your site on different ZODB-file. http://www.zope.org/Members/hathawsh/ExternalMount Or then you could just put cron script to clear the database undos every day? -huima

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Replace files in a specific directory using pythonscript
by Heimo Laukkanen 07 Nov '02

07 Nov '02

>I know it is possible to upload a new file replacing the file for a >certain >ID because in the zope management interface this is done by editing >the >FileObject with the specified ID. >I read in the bugcollector that the method "updata_data" cannot be >used, >instead "manage_upload" should be used. ... >Can anyone provide me with a sample python script that uses (or clues >how to >use) manage_upload to upload this file to the correct ID? I don't have a sample script, but some clues to help you on. First of all, learn to check and search help from the Zope Books API section and/or the help in your Zope server. These files give you some idea atleast. And then the best source for help is the source code. If you see something done in the Zope interfaces etc. you can try to look for those sources too, for some help. But now for the real help: With the form - listing all the files in the directory, you can get a good idea from the Examples that come with Zope. There is the FileLibrary example that shows you a lot. For File object, the update function is manage_edit. So in your script you will call this function for the object you want to update. Below is how it is defined in the source ( lib/python/OFS/Image.py ): def manage_edit(self, title, content_type, precondition='', filedata=None, REQUEST=None): Hope this helps. -huima

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[ANNOUNCE] The Grand Unification Theory of ZShell Scripts
by Jerome Alet 07 Nov '02

07 Nov '02

Hi, I'm pleased to announce the preview version of ZShellScripts v0.1 ZShellScripts is currently distributed under the GNU GPL, but I may change the license if sufficient interest in this product is reported... Download ZShellScripts v0.1 from : http://www.librelogiciel.com/software/ZShellScripts-0.1.tar.gz What is The Grand Unification Theory ??? The Grand Unification Theory : ------------------------------ Why would Zope only support Python Scripts ? Install ZShellScripts instead. This will allow you to add your own languages interpreters, and even define your own language syntax. Here's how : 1 - Create a Shell instance somewhere. Three types of Shell instances are currently provided : * Shell (Python) -- Can execute standard Zope Python Scripts. Code was unashamedly borrowed from Zope 2.5.1, then was re-ordered and factorized, so please report any problem. * Shell (Unix) -- Can execute Unix commands as the user Zope is run as. Variables like context, container, and so on are available as standard environment variables, but will contain the URL to the object instead of its value. This allows your shell script to talk back to Zope using wget for example ! * Shell (Zope) -- Can (*will soon*) execute Zope ZShell commands. This part is currently not working but be sure you'll get it soon !!! Shell (Python) and Shell (Unix) work as expected, as far as I have tested. 2 - Create a "Script (ZShell)" instance, and put the path to your Shell instance on its first line in the usual Unix shell scripts way : #! /path/to/myshell 3 - Put content in your "Script (ZShell)" instance, for example put Python code in it if the shell you use is an instance of "Shell (Python)", or Unix shell commands if it is an instance of "Shell (Unix)", and so on... 4 - Run your "Script (ZShell)" instance as usual, as if it was a standard Zope Python Script for example. Launching your instance, will in fact delegate the code execution to the Shell instance which path you specified on the first line of your "Script (ZShell)" instance. 5 - Enjoy ! 6 - Profit ! (ok, this one comes directly from SlashDot) 7 - Use ShellUnix.py, ShellPython.py, and ShellZope.py as examples to create your own Shell class. ZShellScripts don't need to change. Any comment, bug report or help is **very** welcome. NB : It's only a 0.1 version. Jerome Alet - alet(a)librelogiciel.com

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Too much Python?
by Skip Montanaro 07 Nov '02

07 Nov '02

I find that while creating Page Templates I frequently enter <spam ... instead of <span ... Too much Python perhaps? ;-) -- Skip Montanaro - skip(a)pobox.com http://www.mojam.com/ http://www.musi-cal.com/

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Data types in Stored Procedures
by Bo M. Maryniuck 07 Nov '02

07 Nov '02

Hi. There is the GOOD question: how to tell Oracle receive exact type? E.g. Oracle PL/SQL function to convert a string to date is like: to_date(a_string, 'YYYY.MM.DD'); Then how to create and pass Oracle Date Type via StoredProcedure, sure in Zope? -- Regards, Bogdan A Law of Computer Programming: Make it possible for programmers to write in English and you will find that programmers cannot write in English.

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Redirect problem
by Ken 07 Nov '02

07 Nov '02

Hi all, The recent discussion of non ZODB-bloating counters reminded me of my unsolved redirect problem. I send my external links to a script which performs a RESPONSE.redirect. Then I can count them using Webalizer. But the problem is to redirect to off-site pdfs. This works: <dtml-var standard_html_header> <dtml-call "RESPONSE.redirect('http://dogjoy.freezope.org/redirect.html')"> <dtml-var standard_html_footer> But this doesn't: <dtml-var standard_html_header> <dtml-call "RESPONSE.redirect('http://dogjoy.freezope.org/redirect.pdf')"> <dtml-var standard_html_footer> Any clues? Thanks, Ken

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xmlrpclib problem with zope 2.6?
by Alexander Tuchacek 07 Nov '02

07 Nov '02

hallo, i wrote a python client that sends data to the zope server per xml-rpc, since i have changed to zope 2.6 the xml-rpc comunication does not worke any more? i have testet also with the beta drivers from http://www.pythonware.com/products/xmlrpc/index.htm, the same. does anybody have an idea whats wrong ? is this a known problem? by the way, a java client had no problem to access the zope objects per xml-rpc on the 2.6 server! many thanks for help, alex zope 2.4: >>> import from xmlrpclib * >>> url = 'http://myserver:8080' >>> server = Server(url) >>> print server.test.reflector("sxxx","cxxxxxxx") ['sxxx', 'cxxxxxxx'] zope 2.6: >>> print server.test.reflector("sxxx","cxxxxxxx") Traceback (most recent call last): File "<stdin>", line 1, in ? File "xmlrpclib.py", line 986, in __call__ return self.__send(self.__name, args) File "xmlrpclib.py", line 1239, in __request verbose=self.__verbose File "xmlrpclib.py", line 1037, in request return self._parse_response(h.getfile(), sock) File "xmlrpclib.py", line 1138, in _parse_response return u.close() File "xmlrpclib.py", line 703, in close raise apply(Fault, (), self._stack[0]) xmlrpclib.Fault: <Fault -2: 'Unexpected Zope error value: \nTraceback (most recent call last):\n File "/usr/local/Zope-2.6.0-linux2-x86 /lib/python/ZPublisher/Publish.py", line 150, in publish_module\n response = publish(request, module_name, after_list, debug=debug)\n File "/usr/local/Zope-2.6.0-linux2-x86/lib/python/ZPublisher/Publish.py", line 114, in publish\n sys.exc_info()[2],\n File "/usr/l ocal/Zope-2.6.0-linux2-x86/lib/python/ZPublisher/Publish.py", line 89, in publish\n object=request.traverse(path, validated_hook=vali dated_hook)\n File "/usr/local/Zope-2.6.0-linux2-x86/lib/python/ZPublisher/BaseRequest.py", line 299, in traverse\n subobject=object .__bobo_traverse__(request,entry_name)\n File "/usr/local/Zope-2.6.0-linux2-x86/lib/python/OFS/Application.py", line 106, in __bobo_tra verse__\n try: REQUEST.RESPONSE.notFoundError("%s\\n%s" % (name, method))\n File "/usr/local/Zope-2.6.0-linux2-x86/lib/python/ZPubli sher/HTTPResponse.py", line 606, in notFoundError\n "Sorry, the requested resource does not exist." +\nNotFound: \n \n\n \n \n \n\n \n Site Error \n An error was encountered while publishing this resource.\n \n Resource not found \n\n Sorry, the requested r esource does not exist. Check the URL and try again. Resource: RPC2\nPOST \n \n\n Troubleshooting Suggestions \n\n \n The URL may be incorrect. \n The parameters passed to this resource may be incorrect. \n A resource that this resource relies on may be\n encountering an error. \n \n\n For more detailed information about the error, please\n refer to the HTML source for this page.\ n \n\n If the error persists please contact the site maintainer.\n Thank you for your patience.\n \n \n \n'> http://www.krcf.org tel: +49 175 7764011 fax: +49 221 135422 callto:snmdir.ath.cx/tuchacek GnuPG/PGP public key ID 52993D8D

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RE: [Zope] testing for "REQUEST is not None"
by Passin, Tom 07 Nov '02

07 Nov '02

[ Willem Broekema] > Also then, the absense of REQUEST can be tested with just 'if > REQUEST'?! > Yes, but that statement may be misleading. You have a parameter called REQUEST that may or may not be passing to the function. If that parameter were to be omitted, the function would still construct a local variable called "REQUEST", and set it to refer to the None object. You will be testing this local variable, which is certain to exist because of the Python defaulting mechanism (REQUEST=None). On the other hand, if you tried to use the test on a variable that had never been constructed, then Python would throw an exception since it could not be able to find that name. > > Obviously I'm still not making clear what I want to know: > > - 'None' compares to a boolean false > > - 'def something(self, REQUEST=None):' gives REQUEST the value None, > if it is omitted > > - inside the function, REQUEST is either a Request instance (boolean > true) or 'None' (boolean false), so testing for REQUEST is whatever type was passed in, not a boolean true or false. It behaves like a boolean only for the purposes of the logical test. > 'if REQUEST is not None:' is equivalent to 'if REQUEST:' > Not quite, as I explained. The first form tests whether REQUEST is the same as the None object. The second form tests whether REQUEST evaluates to true or false when teste - false will be evaluated for 0, "", {}, and {} as well as for None. BTW, Javascript actis much the same way. For example, "undefined" evaluates to false in a logical test. Cheers, Tom P > As 'if REQUEST' is shorter than '.. is not None', why not use > it instead? > > Like this: > > def something(self, REQUEST=None): > # do actions > if REQUEST: > # redirect to ... > > > It's equivalent to testing for an empty string: why test for > the empty > string like this: > if s != '' > > when you know s is a string, so you can just do: > if s: > > > - Willem > > > _______________________________________________ > 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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