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ZServer stepping on Content-Type and Content-Length?
by Jeff Hoffman 27 Aug '00

27 Aug '00

Hello, I am playing around with the new ExtFile product released a few days ago, in addition to a similar product I wrote myself. Both are exhibiting an unusual behavior. In the index_html method, I have: RESPONSE.setHeader('Content-Type', 'video/foo') RESPONSE.setHeader('Content-Length', 1212) Then, I return the file data. If I launch python and do: import Zope, ZPublisher ZPublisher.Zope('/path/to/myfile.mpg', d=1) I can trace the execution of these lines. The headers are set correctly in the response and, as far as I can tell, are returned correctly in the last statement my trace executed ("return response"). However, when I telnet to my web port and do: HEAD /path/to/myfile.mpg HTTP/1.0 I get: Content-Type: video/mpeg Content-Length: 0 Remember, I set content-type to video/foo, and length to 1212. These have been stepped on, I believe, by ZServer. I found this section in ZServer/medusa/default_handler.py: request['Last-Modified'] = http_date.build_http_date (mtime) request['Content-Length'] = file_length self.set_content_type (path, request) While I don't know, for sure, that this is what's causing my problem, it looks suspect to me. The curious thing is, using Zope's File object (defined in lib/python/OFS/Image.py), I get the correct Content-Length coming back. I did not check to see if Content-Type was overwritten or not. As far as I can tell, there is no difference in the way my code returns the file data versus the way Zope's File object does. Anyone know what's going on? --Jeff --- Jeff K. Hoffman 704.849.0731 x108 Chief Technology Officer mailto:jeff.hoffman@goingv.com Going Virtual, L.L.C. http://www.goingv.com/

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How to get URL of folder (name unknown) with a certain property?
by Tim Hicks 27 Aug '00

27 Aug '00

I am trying to figure out how to get hold of the URL (using absolute_url I presume) of a folder with a property called "sehs_root_folder" set to "yes". I do not know what the name of this folder is, so I am finding it difficult to use the hasattr function, and I don't have any way of knowing where abouts in the document tree the folder is (except that it must be a 'parent' folder of the one that contains the dtml-method that I am running the code from). Does that make any sense? I'm finding it difficult to even express my question, so searching the mailing list archives is proving fruitless. I'd appreciate any pointers tim ps. The reason I'm trying to do this is to make my site more portable. I would like to be able to change servers and/or folder names on my server without damaging all the links and addresses to images/files on the site. As such, everywhere that I have any sort of link/address on the site, I currently use the following: <dtml-var path>/address/to/whatever/ <dtml-var path> is a method that resides in the 'root' folder of the site, and in it, I put the current appropriate path for the site. However, I would like to make this method automatically figure out the appropriate path. Therefore, I gave the 'root folder' a property called "sehs_root_folder" that I hope to search for. If you have a more efficient way of solving my problem, please let me know. Tim: tim.hicks(a)iname.com

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Re: [Zope] is <dtml-unless someIndirectVariable> possible ?
by Rik Hoekstra 27 Aug '00

27 Aug '00

I have a lot of REQUEST like this one to check, depending on what documents are in the folder. <dtml-unless SOMEREQ> <dtml-call "REQUEST.set('SOMEREQ','defaultvalue')"> </dtml-unless> RH: this should work. It works with me so i gave all documents concerned 2 properties myPropName,myPropValue (in our example myPropName : SOMEREQ myPropValue : defaultvalue) So i'm able to iterate the documents and check the properties and set the REQUEST. <dtml-in "objectValues(['DTML Document'])"> <dtml-if "_.hasattr(this(), 'myPropName') == 1"> <dtml-call "REQUEST.set(myPropName,myPropValue)"> </dtml-if> </dtml-in> this works OK. But, I can't find a way to generate the <dtml-unless SOMEREQ> tag. Passing the value of myPropName seems to fail (erreur while parsing the syntax, or check the 'myPropName' instead of his value). I tried a lot of things and syntax around <dtml-unless myPropName>, but it failed. RH: Um, as you describe it, you mix up the name of the property and its value (but that might be a matter of desciption). Try something like the following <dtml-unless "myPropName==SOMEREQ"> <dtml-call "REQUEST.set('myPropName', defaultvalue)"> </dtml-unless> note that 1) this will only work if there is a myPropName and a defaultvalue variable in the namespace and 2) this won't change the value of the property hth Rik

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End User Customization of Python Product DTML
by Kapil Thangavelu 27 Aug '00

27 Aug '00

I've been fumbling with this for the last week or so. I've got a Python Product NewsSyndicate, which setups feeds for a bunch of RSS channels. I'd like to have the display for that content be end user customized in the management interface not through editing dtml on the file system and I'd like to keep this product in python (as opposed to a zclass split). i experimented with a folder that i instantiated with various dtml_views upon product creation. i then set the view methods of all the generated rss channels equal to the views in this folder. it works, but it seems a bit flaky. in retrospect this seems like a bad way to do it, since i'm basically setting up hundreds of references to a method, and if it gets deleted in the management screen i can't reassociate easily a new one to the exisiting channels. if anyone has any ideas i'd love to hear them. Kapil

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keeping state of tree over different documents
by Marcus Schopen 27 Aug '00

27 Aug '00

Hello, I'm trying to do the following: - documents containing a tree navigation are created dynamically using standard_header and footer. - the navigation tree is NOT located in a frame but in a table cell which is reloaded together with the rest of the page each time a link in that navigation is selected - the navigation tree is automatically created by using a dtml-method. The problem that occurs is, that the tree`s open/close state is not correctly maintained over the different documents. A solution to that might be to append the state of the tree after selection of a link to the it's URL as ?tree-s=.... ; that means pass the future state of the tree to the selected page by using URL-Parameters. Any ideas how to do that or any other ideas? Thank you Marcus

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Barcodes, magnetic cards, etc.
by Erik Enge 27 Aug '00

27 Aug '00

Good morning, people. I was wondering, can Zope interface to barcodes, magnetic cards (e.g. credit cards) and other common shop-"accessories"? Feedback is greatly appretiated :)

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wherefore art thou NotMail?
by tav 27 Aug '00

27 Aug '00

i was going to make use of the Bank Holiday weekend by trying out some zope products that i havent had time to play with... and NotMail was high on my list. i managed to install the IMAP server that it needed and went to get the tarball, and it has gone missing from the zope.org site ;p can someone please direct me to where i might find this elusive product. thanks -- best regards, tav

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is <dtml-unless someIndirectVariable> possible ?
by Didier Georgieff 27 Aug '00

27 Aug '00

I have a lot of REQUEST like this one to check, depending on what documents are in the folder. <dtml-unless SOMEREQ> <dtml-call "REQUEST.set('SOMEREQ','defaultvalue')"> </dtml-unless> so i gave all documents concerned 2 properties myPropName,myPropValue (in our example myPropName : SOMEREQ myPropValue : defaultvalue) So i'm able to iterate the documents and check the properties and set the REQUEST. <dtml-in "objectValues(['DTML Document'])"> <dtml-if "_.hasattr(this(), 'myPropName') == 1"> <dtml-call "REQUEST.set(myPropName,myPropValue)"> </dtml-if> </dtml-in> this works OK. But, I can't find a way to generate the <dtml-unless SOMEREQ> tag. Passing the value of myPropName seems to fail (erreur while parsing the syntax, or check the 'myPropName' instead of his value). I tried a lot of things and syntax around <dtml-unless myPropName>, but it failed. Is it a dtml-unless limit, or just a bad syntax i'm writing ? Thnaks in advance.

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From date to timestamp
by Peter Be 27 Aug '00

27 Aug '00

I managed to go from timestamp to date with <dtml-var "ZopeTime(967322055)" fmt="%H:%M"> But how do convert a date to timestamp? I.e. from say: "27/08/00 23:59" to 967322xxx? All I know to begin with is the day, month and year. Would be nice if I can do this in DTML straight away. Is it time.mktime something?

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ftp permisions problem
by technology＠mylinuxisp.com 26 Aug '00

26 Aug '00

Hi: I am running zope ftp on 8021 by defualt. I ftp to it and attempt to upload a file into zope. I get a ettempt to create file failed. Any ideas. I am running all zope permissions as defualt. I log in as superuser. cj

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