March 2006 - Zope - Zope lists

TypeError: unpack non-sequence. RemoteUserFolder?
by leandros van den berg 02 Mar '06

02 Mar '06

Hello, I made a copy of a live Zope-instance behind a webserver to my PC for testing purposes. I just copied the files in 'var' and 'Products' and changed the folders in zopectl. I am also running the same Zope version (2.8.0) as on the remote server and with the same structure: Root Folder |_ ... |_ acl_users (User Folder) |_ middelen |_ acl_users (Remote User Folder) |_ ... |_ ... When I try to log in to http://localhost:8080/middelen I get a 'TypeError: unpack non-sequence' instead of a login-prompt. Logging in to http://localhost:8080/manage does work. Below is the entry from the middelen/error_log: Time 2006/03/02 13:22:49.932 GMT+1 User Name (User Id) Anonymous User (None) Request URL http://localhost:8080/middelen/index_html Exception Type TypeError Exception Value unpack non-sequence Traceback (innermost last): * Module ZPublisher.Publish, line 104, in publish * Module ZPublisher.BaseRequest, line 445, in traverse * Module Products.RemoteUserFolder.RemoteUserFolder, line 244, in validate TypeError: unpack non-sequence REQUEST form cookies lazy items SESSION <bound method SessionDataManager.getSessionData of <Products.Sessions.SessionDataManager.SessionDataManager object at 0x412b2f2c>> other TraversalRequestNameStack [] URL 'http://localhost:8080/middelen/index_html' SERVER_URL 'http://localhost:8080' PUBLISHED <OFS.DTMLMethod.DTMLMethod object at 0x414f446c> ACTUAL_URL 'http://localhost:8080/middelen' URL0 http://localhost:8080/middelen/index_html URL1 http://localhost:8080/middelen URL2 http://localhost:8080 BASE0 http://localhost:8080 BASE1 http://localhost:8080 BASE2 http://localhost:8080/middelen BASE3 http://localhost:8080/middelen/index_html environ HTTP_ACCEPT 'text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5' HTTP_ACCEPT_CHARSET 'ISO-8859-1,utf-8;q=0.7,*;q=0.7' HTTP_USER_AGENT 'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.10) Gecko/20050925 Firefox/1.0.4 (Debian package 1.0.4-2sarge5)' SERVER_NAME '0.0.0.0' GATEWAY_INTERFACE 'CGI/1.1' channel.creation_time 1141302169 SERVER_SOFTWARE 'Zope/(Zope 2.8.0-final, python 2.3.5, linux2) ZServer/1.1' REMOTE_ADDR '127.0.0.1' HTTP_ACCEPT_LANGUAGE 'nl,en-us;q=0.7,en;q=0.3' SCRIPT_NAME '' REQUEST_METHOD 'GET' HTTP_HOST 'localhost:8080' HTTP_KEEP_ALIVE '300' SERVER_PORT '8080' SERVER_PROTOCOL 'HTTP/1.1' PATH_TRANSLATED '/middelen' CONNECTION_TYPE 'keep-alive' HTTP_ACCEPT_ENCODING 'gzip,deflate' PATH_INFO '/middelen' Does anyone know what the problem might be? Kind regards, Leandros van den Berg The Netherlands

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How to specify caching for ZSQL methods on file system
by Yuan HOng 02 Mar '06

02 Mar '06

I have some ZSQL methods written on the file system using FSDV. In ZMI I can not find the 'Advanced' tab usually available for ZSQL methods in ZODB for specifying the caching properties of the ZSQL method. Can anyone give some clues as how to do this for ZSQL on FSDV? I suppose I might need to write some *.metadata file to specify these properties using FSDV? -- Hong Yuan 大管家网上建材超市装修装潢建材一站式购物 http://www.homemaster.cn

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Change owner from external app
by Marek 'MMx' Ludha 01 Mar '06

01 Mar '06

Hi. I am writing an external application and I need to modify owner and permissions of zope files from that app. I thought about using HTTP object publishing or XML-RPC, so I checked documentation at http://www.plope.com/Books/2_7Edition/AppendixB.stx#2-45 but I can't find any method to deal with owner/permissions. Is there really no way to do this or am I just missing something? Thanks in advance. Marek Ludha

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Re: [Zope] Zope/Plone logon security strategy etc
by Dieter Maurer 01 Mar '06

01 Mar '06

michael nt milne wrote at 2006-2-28 15:51 +0000: >I'm probably missing something really obvious but am wondering how you >actually implement your product on a live plone site. I've got it installed. >Do you just customise the login form that comes with the product and use >that on the site? I fear you do not understand the essence of HTTP authentication: For any kind of HTTP authentication (whether "basic" or "digest"), it is the browser which gathers the login information. Therefore, you do not have a login form (you can customize on the server). Instead, the browser uses its login dialog (which you might customize, if you are using e.g. Mozilla or Firefox, but is usually out of the server's reach). As written in the documentation on my website, "DigestAuth" currently only contains a "DigestAuthCrumbler" which works similar to the "CookieCrumbler". More precisely: It takes digest auth information, verifies it and (if successful) presents it like basic auth information to the remaining parts of Zope. The "CookieCrumbler" works very similar: it takes the information from a cookie and presents it like basic auth information to the remaining parts of Zope. The "DigestAuthCrumbler" is a bit less transparent. It *MUST* know the user's password in order to verify the validity of the presented auth information (more precisely, a special hash would be sufficient, but usual user folders do not support such hashes). Therefore, it can only be used together with UserFolders providing access to the clear text password. -- Dieter

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Re: ImageFile weirdness? (addendum)
by Chris Withers 01 Mar '06

01 Mar '06

Jürgen Herrmann wrote: > btw. i'll learn to formulate my questions better... > > the actual question way back then should have read (and not more): > "who (which method) is responsible for delivering an ImageFile instances > content when called, as index_html obviously is NOT called?" The publisher chooses what method to publish, and it usually chooses index_html. You did something which made the publisher not do that... Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk

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Re: ImageFile weirdness?
by Chris Withers 01 Mar '06

01 Mar '06

Jürgen Herrmann wrote: > to not clutter the zodb-dev list, i'll write you personally... It's what the list is here for, please keep CC'ing it or you're unlikely to get a response in the future... > arent't these two code snippets doing the same? > > class MyClass: > myTemplate = PageTemplateFile(...) > > and: > > class MyClass: > def initTemplates(self): > myTemplate = PageTemplateFile(...) > setattr(self.__class__, 'myTemplate', myTemplate) > # calling initTemplates() once at startup. Almost certainly not. I have no idea where 'self' in your second example comes from, but I'd almost bet it isn't what you expect... > i'm actually doing this since long, That doesn't make it right ;-) > because i initialize page template > files found in a certain directory by calling initTemplates() once on > zope startup. this way i don't have to add a line for each template, > the code simply iterates over all .pt files in the directory... Interesting, but there are likely to be problems with it. Not least of which: how are you adding security declarations for those new methods? > actually i have fixed my initial problem by replacing ImageFile with > ExternalFile, which behaves differently and sets the correct content- > type headers if it has a content_type property. That doesn't sounds like such a hot idea. My understanding was that ExternalFile was for storing _content_ files on the filesystem... cheers, Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk

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Re: [Zope] Acquisition not working as expected
by Roman Klesel 01 Mar '06

01 Mar '06

Andrew Milton schrieb: > Did you paste this code, because it has errors... Ahh sorry, I missed the last charakter, a ")". Here it is again: def genId(self,context): "asdf" items = [ int(e[2:]) for e in context.objectIds('Folder') ] if items == []: return 'lt100000' return 'lt%s' % str(max(items)+1) Greetings Roman

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product security changes from 2.8 to 2.8.5 ?
by Ed Colmar 01 Mar '06

01 Mar '06

Hello I recently moved my zope product developed on a 2.8 server on to a 2.8.5 server, and all of my python code is no longer being published out. In the past I had been using a doc string """ doc """ to make methods accessible. I realize this is not the proper procedure, but it worked. Now, on the 2.8.5 server, all of these are refused. I've been going through and doing security.declarePublic('methodname') on everything I want to be public, but it does not appear to have any effect. Are there any other changes that I need to make to my product in order to get back the functionality I had previously? Am I even looking in the right place? Thanks for any tips -e-

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External Methods newbie question
by Alric Aneron 01 Mar '06

01 Mar '06

Hello, I see I can only execute python functions in external methods. Is there any way to execute the whole file, not just a certain function? In linux I created a python script, and it doesn't have functions. I just want to execute the whole file. I tried using "self" or "init" for function names in Zope and it doesn't want to do it, telling me "The specified object, init, was not found in module, test." Is there a way to execute a file? (another question: is there a way to execute bash commands in linux? or is external methods only good for python?) Thanks in advance guys!! --------------------------------- Yahoo! Mail Use Photomail to share photos without annoying attachments.

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