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Re: [Zope] redirecting from inside a frame
by Rik Hoekstra 09 Jun '00

09 Jun '00

The onlyway I can think off, (which doesn't mean its the only way), is to launch a new window and send a HTML document whose content is JavaScript. It would either rewrite the original frame or the entire window depending on you original input and then close itself. [rh] Hm, even for frames, there is a more zopish way to do this using Phil Harris' method (using target). Suppose you want to make a text and then display it in a frameset (this may not have been your original question, but it is just about the hardest to without javascript) This bugged me for a long time, so I thought i'd write it down: make your frameset look something like this: <html> <head> <title></title> </head> <frameset rows="100px,*" BORDER=0 FRAMEBORDER=0 FRAMESPACING=0> <frame name="title" SRC="page1" SCROLLING=no> <frameset cols="150px,*" BORDER=0 FRAMEBORDER=0 FRAMESPACING=0> <frame name="content" SRC="content" SCROLLING="NO" NORESIZE> <dtml-if input> <frame name="text" SRC="<dtml-var input>"> <dtml-else> <frame name="text" SRC="defaultpage"> </dtml-if> </frameset> </frameset> </html> <form method=post action="some_frameset?input=<dtml-var id>" target="_top"> of course you could complicate this for plain page/frameset etc, but that's the easy part ;-) hth Rik ----- Original Message ----- From: Fusion Group To: zope(a)zope.org Sent: Thursday, June 08, 2000 6:03 PM Subject: [Zope] redirecting from inside a frame I'm attempting to submit a form from inside of a frame, and depending on the information submitted, redirect to a new page which I no longer want displayed inside of that frame. I want the new page to displayed in the full browser window, but not a new window. Any help would be greatly appreciated. Regards, Chad

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zodbc performance question
by julio dinis 09 Jun '00

09 Jun '00

Hi all, Using zodbc, supose we have the following situation. One zodbc_database_connection and lots of zsql methods. Can we say that creating more zodbc_database_connection(with a system dsn for each one, but all pointing to the same database) and thus distribute the zsql methods avoiding to all use the same zodbc_connection, will increase performance. Dont tell me I have to test it, I will but some thougts here will help. Best regards, Júlio Dinis Silva ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

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redirecting from inside a frame
by Fusion Group 09 Jun '00

09 Jun '00

I'm attempting to submit a form from inside of a frame, and depending on the information submitted, redirect to a new page which I no longer want displayed inside of that frame. I want the new page to displayed in the full browser window, but not a new window. Any help would be greatly appreciated. Regards, Chad

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Extended characterset
by ivan＠rcp.co.uk 09 Jun '00

09 Jun '00

Hi, What I want to do is to allow users to be able to enter greek/mathematical symbols into a textbox. I have managed to do this but get the following problem - In the first dtml method the user clicks on a symbol button and that symbol is entered into the textbox. They then click on a submit button and the next dtml method is displayed. This method simply does a <dtml-var REQUEST> so that I can see the value of the previous textbox. The symbol has changed! On the first method I enter a lower case delta symbol and in the second I can see an 'a' with dots above it. If I change my code so that instead of inserting a symbol into the textbox it inserts the code δ then when I get to the second dtml method the correct symbol is displayed. This is not very user friendly though. Is there somekind of encoding variable set in Zope? as if I do the same code in straight html then it works fine. Regards, Ivan

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xmlrpc problem
by Andy Dawkins 09 Jun '00

09 Jun '00

Hi I am having a small probelm with xmlrpc. I am simply trying to create a new object within Zope. For now the object will be a DTMLDocument. I have a DTML Method with the id of createDocument and it reads: <dtml-call "manage_addDTMLDocument('new_document','New Doc',contents)"> Done I also have a xmlrpc python module that reads: import xmlrpclib s=xmlrpclib.Server("http://www.myserver.com/Zope/test/") args={} args=['contents']="This is the contents of the new file" s.createDocument(args) The traceback I get reads: Traceback (innermost last): File "<stdin>" line 1, in ? File "xmlrpclib.py", line 550, in __call__ return self.__send(self.__name, args) File "xmlrpclib.py", line 643, in __request request File "xmlrpclib.py", line 595, in request headers xmlrpclib.ProtocolError: <Protocol Error for www.myserver.com/Zope/test/: 401 Unauthorized> If i change createDocument to read: <dtml-call "manage_addDTMLDocument('new_document','New Doc')"> Done and change the python module to read: import xmlrpclib s=xmlrpclib.Server("http://www.myserver.com/Zope/test/") s.createDocument() Then it successfully creates the document. So how do I successfully pass arguments in to the DTML method so that it can populate the new document with the correct data? Cheers -Andy Dawkins (New Information Paradigms Ltd)

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Re: [Zope] How do you call the string?
by Ian Sparks 09 Jun '00

09 Jun '00

Martin, I'm no Zope expert but if you have a property with an ID of "prop1" of type string with a value "first_value" set on a DTML Document then inside the document you can say : <dtml-var prop1> and "first_value" will be substituted into your code at this point, replacing the "<dtml-var prop1>" declaration. I am not sure why you want to get the title? You only need to know the ID to get the value. Are you trying to find a way of looping through all the properties defined for a document? If yes, I don't know how to do this but ask again to zope(a)zope.org for how to do this. Sorry if this doesn't answer your question. - Ian. ----- Original Message ----- From: "Martin Seehuusen" <martin(a)grenna.net> To: "Ian Sparks" <isparks(a)wmute.u-net.com> Sent: Thursday, June 08, 2000 10:50 AM Subject: Re: [Zope] How do you call the string? Thank you for you help! I think I need to explain a bit more! Sorry for not doing that in the first place! OK, I go into Properties for one of my files! then I choose an ID, say "prop1" Type could be, say "String" then a value, say "first_value". now what I would like is to call the string, and get up the ID and the Value. something like <dtml-var type_command> result: ID: Prop1 Value: First_Value Hope this explains a bit more! ;) Thank you for your help. Best regards Martin Seehuusen

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Re: [Zope] Re: [ZCommerce] Secure storage of credit card info
by Cary O'Brien 09 Jun '00

09 Jun '00

> -> > You have a ZCommerce site. You accept credit cards, and securely > -> > communicate with a CC processor to verify the transacton. Now, > > Besides Bill's suggestion, keep all your servers behind a good > firewall. One option is to use Linux IP Masquerading, having your > webserver *and* database server use 192.168.0.??? IP Addresses. Then, > turn on port forwarding on your Masq server, so that all incoming requests > on port 80 go to (something like) port 8080 on your webserver, which then > responds to the request. > > You could just use an encrypted filesystem on the database server, > although that may be too slow (and possibly overkill?). At that point > --assuming your firewall is secured-- you'd more or less need physical > access to your internal network to see those CC#s. The only real danger > left is a misconfiguration (or bad code) in your webserver software. > (read: don't use IIS :) > I would work from the assumption that, worst case, your web server machines may get rooted, either from external attacks or from internal "human engineering". And that people can modify your software and install sniffers. [1] Especially if you have a lot of people modifying content on that machine. That's why you get the best protection with a separate machine, firewalled off, with limited access, plus Public key encryption. If you get rooted and you don't know about, you've lost the game. If you get rooted and you find out, you've only lost those CC numbers that were processed while you were compromised. My 2 cents. I'd be interested to hear alternate viewpoints. -- cary (who worries alot) [1] Which is why switches (rather than dumb hubs) are nice.

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Announce: Squishdot 0.4.1 Released
by Chris Withers 09 Jun '00

09 Jun '00

Squishdot 0.4.1 is now available from http://www.zope.org/Members/chrisw/Squishdot/ The following major changes were made: - You can now use things like 'site_header' and 'site_footer' in 'showMessage' and 'showError'. - Security has been tightened and a new set of roles introduced. - The bug requiring a 'body' parameter to be supplied to 'search' has been fixed. There are some other small changes and improvements. If you run into problems, remember Squishdot has a mailing list at eGroups and a bug collector on SourceForge. cheers, Chris

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WebObjects
by Jason Cunliffe 09 Jun '00

09 Jun '00

Hello Now that Apple has slashed the price of WebObjects from $50,000 to $700, I am very interested to hear any opinions/experiences of WebObjects.. how does it compare with Z*** , Man***, Rox**, ColdF***** etc http://www.apple.com/webobjects/ -What are the good ideas? -What is similar? -What is different? -How does WebObjects handle integration with various scripting languages: Python, Perl etc -What effect you think Apple's announcement wil have on webapp market and development? Thanks in advance for any feedback - Jason ________________________________________________________________ Jason CUNLIFFE = NOMADICS.(Interactive Art and Technology).Design Director

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Zope, Apache/NT, Reliability issues
by Fabio Akita 09 Jun '00

09 Jun '00

Hello I am a developer and we are studying the possibility of adopting Zope as a production platform for our clients. Actually I use PHP, Perl and ASP as server-side "platforms" and I will also be testing WebObjects although I have to say that Zope interested me much more as a programmer ^_^ Until now I have read lots of documentations, DTML looks good enough and I learned a lot about Python. But there are still some doubts that no online document could solve easily. Concerning the installation I´d like to know if anyone knows (or knows some document that details about) the essencial differences between the many ways of installing Zope. I´ve used the ZServer in stand alone mode and I also have implemented the easy Proxy Reverse trick in Apache. I will try FastCGI and PCGI as soon as possible, but I have some doubts now. My test platform is a Windows NT 4 running Apache 1.3.12. The first doubt comes to the fact that I could not find the pcgi module for NT (I do not have any kind of C compiler, so I´ll be very glad if anyone know a binare version). So I´d like to know where can I find informations about installing Zope using PCGI in an NT Apache installation. The second doubt: what exactly are the differences of running it in PCGI mode or in ZServer? I do understand the concept of forking a process and interfacing a web server and a process through a CGI interface as PCGI and I also understand the fact of the multithreading feature in ZServer. Basically it would mean that each connection request will fork a new Zope connection and then maintain it in some kind of a connection pool (as databases do)? Or will there be only one process running Zope and a queue of requests to access it? What are the performance impacts, what are the hardware (memory/CPU) impacts? Personally I do not like the concept of CGI but know nothing about the Persistent CGI concept. And what about the method of "masquerading" the ZServer through Apache? I have read solutions using the Rewrite module and the Proxy module, but it actually means (roughly speaking) that if there are 10 requests made to Apache then it will make 10 requests to ZServer so, considering only the reliability issue of the server even if Apache can handle millions of requests per second, the ZServer would fall down much faster than that so I cannot see any advantage of using Apache in front of it. Of course I understand the other advantages of Apache as it´s many configuration options, robustness as a web server, etc, but can the ZServer stay up and running in pair with Apache? Maybe there´s any way to configure Apache to cache the pages -- as a Squid would -- so it can "filter" the requests and low the requests level that it will do to ZServer? And what about it´s object oriented database? I also have some doubts about it. I worked a lot with relational databases as MS SQL and MySQL but never tried to study an OO approach to DB. How fast it is? How much requests can it handle without hanging, collapsing or corrupting data? I mean, anyone tried to do some study of a database that changes everytime and have queries everytime, I mean, searches in a database where it´s data changes constantly (searching a static database is much different than searching on a mutable one). Row level locking, transaction, consistency, etc, all these concepts apply here? Can it be substituted by a traditional relational database and have it´s contentes interfaced to "looks like" object oriented? The reliability issue is important as I would´t like to have to write a cron to verify if the server is up and running and, if not, kill all of it´s processes and start all over again. It´s not professional, it´s just an ugly band-aid. Actually the PCGI module for NT is not that important as I do prefer working with Apache on Linux but some of our clients prefer working on NT as much of it´s products are already up and running on NT, so Zope on NT would be the preferred option (is Zope+NT as stable as Zope+Linux, only talking about the web server robustness). Well, these are my doubts for now. Thanks for the attention. I hope we can do some interesting discussion. []´s Fabio Akita - Developer F/Nazca S&S / Adversiting

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