[Zope-dev] Bug in Traversable.py

2007-03-23 Thread Roché Compaan
Looks like there is a bug in Zope 2.10.2 with OFS/Traversable.py on line
228:

if not ok:
if (container is not None or
guarded_getattr(obj, name, _marker)
is not next):
raise Unauthorized(name)

Here is my debugging session:

(Pdb) guarded_getattr(obj, name, _marker)
'Guo Zhonghai'
(Pdb) obj
Contact at /creme/Contacts/Contact_1125
(Pdb) name
'title'
(Pdb) guarded_getattr(obj, name, _marker)
'Guo Zhonghai'
(Pdb) p next
'Guo Zhonghai'
(Pdb) guarded_getattr(obj, name, _marker) == next
True
(Pdb) guarded_getattr(obj, name, _marker) is next
False
(Pdb) type(guarded_getattr(obj, name, _marker)), type(next)
(type 'str', type 'str')
(Pdb) id(guarded_getattr(obj, name, _marker))
46912619931440
(Pdb) id(next)
46912619931720

Thus, often string attributes will fail with this check.

In my opinion the code should read:

if not ok:
if (container is not None or
guarded_getattr(obj, name, _marker) 
!= next):
raise Unauthorized(name)


If you agree that his is a bug, I'll log it.

-- 
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Upfront Systems   http://www.upfrontsystems.co.za

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[Zope-dev] Zope Tests: 5 OK

2007-03-23 Thread Zope Tests Summarizer
Summary of messages to the zope-tests list.
Period Thu Mar 22 12:00:00 2007 UTC to Fri Mar 23 12:00:00 2007 UTC.
There were 5 messages: 5 from Zope Unit Tests.


Tests passed OK
---

Subject: OK : Zope-2.7 Python-2.3.6 : Linux
From: Zope Unit Tests
Date: Thu Mar 22 21:52:36 EDT 2007
URL: http://mail.zope.org/pipermail/zope-tests/2007-March/007483.html

Subject: OK : Zope-2.8 Python-2.3.6 : Linux
From: Zope Unit Tests
Date: Thu Mar 22 21:54:07 EDT 2007
URL: http://mail.zope.org/pipermail/zope-tests/2007-March/007484.html

Subject: OK : Zope-2.9 Python-2.4.4 : Linux
From: Zope Unit Tests
Date: Thu Mar 22 21:55:37 EDT 2007
URL: http://mail.zope.org/pipermail/zope-tests/2007-March/007485.html

Subject: OK : Zope-2.10 Python-2.4.4 : Linux
From: Zope Unit Tests
Date: Thu Mar 22 21:57:07 EDT 2007
URL: http://mail.zope.org/pipermail/zope-tests/2007-March/007486.html

Subject: OK : Zope-trunk Python-2.4.4 : Linux
From: Zope Unit Tests
Date: Thu Mar 22 21:58:37 EDT 2007
URL: http://mail.zope.org/pipermail/zope-tests/2007-March/007487.html

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[Zope] Help me some error when I complie Zope!

2007-03-23 Thread Duc Toan

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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Re: [Zope] How can I reset zope time???

2007-03-23 Thread Jens Vagelpohl

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On 23 Mar 2007, at 07:41, Flemming Bjerke wrote:

But, now, not only have all my changes the date 12/12-2007 in the
undo history, every object I have changed gets this date as well!
Apparently, zope won't accept to go backward in time.

How do I reset the zope's time?


Undo is transactional, meaning an undo is actually a new transaction
instead of removing an old transaction. What you are trying to do is
not possible, unless you physically truncate the database.


I am not absolutely sure I understand you. I succeeded in undoing.  
My problem is that zope keeps on with the date 12/12-07. The zodb  
does not seem to accept a timestamp that is earlier than the last


That's what I am trying to tell you. Any undo is actually a brand-new  
transaction that will by definition set the modification time to the  
current time. You *cannot* get back to the old modification time  
using Undo. This does not mean that Undo won't work at all, it will.  
But you will not get back your old modification time.


jens

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Re: [Zope] How can I reset zope time???

2007-03-23 Thread robert rottermann
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Hash: SHA1

Jens Vagelpohl schrieb:
 
 On 23 Mar 2007, at 07:41, Flemming Bjerke wrote:
 But, now, not only have all my changes the date 12/12-2007 in the
 undo history, every object I have changed gets this date as well!
 Apparently, zope won't accept to go backward in time.

 How do I reset the zope's time?

 Undo is transactional, meaning an undo is actually a new transaction
 instead of removing an old transaction. What you are trying to do is
 not possible, unless you physically truncate the database.
 
 I am not absolutely sure I understand you. I succeeded in undoing. My
 problem is that zope keeps on with the date 12/12-07. The zodb does
 not seem to accept a timestamp that is earlier than the last
 
 That's what I am trying to tell you. Any undo is actually a brand-new
 transaction that will by definition set the modification time to the
 current time. You *cannot* get back to the old modification time using
 Undo. This does not mean that Undo won't work at all, it will. But you
 will not get back your old modification time.
 
 jens
 

so it migth be enough, to export the folder(s) with your sites
remove the Data.fs to a secure place, restart zope and the reimport your
sites.

just an idea
robert
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Re: [Zope] How can I reset zope time???

2007-03-23 Thread Jens Vagelpohl

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On 23 Mar 2007, at 09:01, robert rottermann wrote:
I am not absolutely sure I understand you. I succeeded in  
undoing. My

problem is that zope keeps on with the date 12/12-07. The zodb does
not seem to accept a timestamp that is earlier than the last


That's what I am trying to tell you. Any undo is actually a brand-new
transaction that will by definition set the modification time to the
current time. You *cannot* get back to the old modification time  
using
Undo. This does not mean that Undo won't work at all, it will. But  
you

will not get back your old modification time.


so it migth be enough, to export the folder(s) with your sites
remove the Data.fs to a secure place, restart zope and the reimport  
your

sites.


No. Import will also generate new database modification times. It  
will only make things worse.


This issue appears when product authors naively use the database  
modification time instead of defining their own field in which to  
store modification time data. They would have full control if they  
used their own time stamps. Most product authors simply don't know  
what the possible consequences are, or when/how the database  
modification timestamps are changing.


jens


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[Zope] Re: Help me some error when I complie Zope!

2007-03-23 Thread Michael Haubenwallner

Duc Toan schrieb:

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)



The Windows Python binary (2.4 and 2.5) is built with Visual Studio 
2003, compiling Zope needs the same compiler. The free VisualC++ Toolkit 
2003 is not available for download anymore since mid 2006, its been 
replaced by the free Visual Studio 2005 Express.


What you can do without further problems is: install cygwin (or MingW), 
compile Python from source with cygwin, finally compile Zope from source 
under cygwin.


This is atm also the only way to get Python eggs with C extensions 
compiled under Windows.


Hth,
Michael

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Re: [Zope] How can I reset zope time???

2007-03-23 Thread flem
On Fri, 23 Mar 2007 09:03:55 +0100
Jens Vagelpohl [EMAIL PROTECTED] wrote:


 
 No. Import will also generate new database modification times. It  
 will only make things worse.
 
 This issue appears when product authors naively use the database  
 modification time instead of defining their own field in which to  
 store modification time data. 
I don't think the zwiki-people know this.

 They would have full control if they  
 used their own time stamps. Most product authors simply don't know  
 what the possible consequences are, or when/how the database  
 modification timestamps are changing.

I am a bit confused. My zopeserver runs fine, and all undos have been erased. 
What I want is to be able to create an object in the zmi which has the correct 
creation date (e.g. 23rd March 12.20 pm) in the zmi (and the undo history as 
well). Is this simply impossible because the timestamp in the zodb is always 
automatically adjusted to the latest date associated to the objects already 
created (i.e. 12th December 2007)? 

Flemming
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[Zope] Re: open image in a fitted new window

2007-03-23 Thread Alan

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, [EMAIL PROTECTED] [EMAIL PROTECTED] 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::

   !-- assumes that 'image' is bound to an actual Zope image object --
   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/imageimg 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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Re: [Zope] How can I reset zope time???

2007-03-23 Thread Jens Vagelpohl

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On 23 Mar 2007, at 12:20, flem wrote:
I am a bit confused. My zopeserver runs fine, and all undos have  
been erased. What I want is to be able to create an object in the  
zmi which has the correct creation date (e.g. 23rd March 12.20 pm)  
in the zmi (and the undo history as well). Is this simply  
impossible because the timestamp in the zodb is always  
automatically adjusted to the latest date associated to the objects  
already created (i.e. 12th December 2007)?


You hit the nail on the head. The ZODB timestamp is adjusted whenever  
the ZODB record for an object is changed and the application code has  
_no_ control over it. Such change could be effected by a content  
author editing the object, or by an import, or by an undo operation.


jens

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Re: [Zope] Re: mass editing timeout problem

2007-03-23 Thread Chris Withers

Laurence Rowe wrote:

Use Firefox, it won't time out.


That depends on the version...

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 


I'd bet you're chewing through lots of memory, which is causing 
swapping, which is why it's slowing down...


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.


That's surprising...

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??


A web browser is not the way to drive a batch process like this. I'd 
suggest you look at stepper:


http://www.simplistix.co.uk/software/zope/stepper

cheers,

Chris

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Re: [Zope] context.user at ImplPython.py

2007-03-23 Thread Garito

Hi, Martijn!
I think I understand what you say but I have a problem:

I don't use any view or object to the render time. Is a method (__call__).
Then I can't return the view object at traversal time. How can I then avoid
this problem?

And If this is correct, why don't work the same with the creation method?

If you read the link I put, you could read I can create (with
CrearFuncionalidad) but not delete it (with BorrarFuncionalidad) that seems
to have the same security necessities

Weired think, isn't it?

Thank you so much for your help!

2007/3/23, Martijn Pieters [EMAIL PROTECTED]:


On 3/22/07, Garito [EMAIL PROTECTED] wrote:
 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)

I've seen this happen when creating views in combination with
PlonePAS. The issue is that the user authentication hasn't taken place
yet at traversal time (when the view is instanciated). Moving the
user-dependant code to render time (view.__call__ and methods used in
the view template or somesuch) the problem is circumvented.

--
Martijn Pieters





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Re: [Zope] context.user at ImplPython.py

2007-03-23 Thread Martijn Pieters

On 3/23/07, Garito [EMAIL PROTECTED] wrote:

I don't use any view or object to the render time. Is a method (__call__).
Then I can't return the view object at traversal time. How can I then avoid
this problem?


At traversal time you indeed cannot rely on the right security context.


And If this is correct, why don't work the same with the creation method?


The creation happens *after* traversal?


If you read the link I put, you could read I can create (with
CrearFuncionalidad) but not delete it (with BorrarFuncionalidad) that seems
to have the same security necessities


Return a callable from your traverser (so return the __call__, don't
call it yourself). The publisher will call it for you after the user
has been authenticated.

--
Martijn Pieters
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[Zope] Corrupted ZPT Locks Me Out Of Folder

2007-03-23 Thread Mark, Jonathan (Integic)
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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[Zope] Apache-Rewrite - Firewall - Problem

2007-03-23 Thread Andreas Tille

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/VirtualHostRoot$1 
[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.

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Re: [Zope] How can I reset zope time???

2007-03-23 Thread flem
On Fri, 23 Mar 2007 14:04:51 +0100
Jens Vagelpohl [EMAIL PROTECTED] wrote:

 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1
 
 
 On 23 Mar 2007, at 12:20, flem wrote:
  I am a bit confused. My zopeserver runs fine, and all undos have  
  been erased. What I want is to be able to create an object in the  
  zmi which has the correct creation date (e.g. 23rd March 12.20 pm)  
  in the zmi (and the undo history as well). Is this simply  
  impossible because the timestamp in the zodb is always  
  automatically adjusted to the latest date associated to the objects  
  already created (i.e. 12th December 2007)?
 
 You hit the nail on the head. The ZODB timestamp is adjusted whenever  
 the ZODB record for an object is changed and the application code has  
 _no_ control over it. Such change could be effected by a content  
 author editing the object, or by an import, or by an undo operation.

I think this kind af date-deadlock is a vulnerability of the zope architecture. 
Is it the same thing with zope3? Isn't it an unnecessary vulnerability that an 
open zwiki comments field - or any other object making act open to the public 
where the anyone can set the date - can corrupt the time system irrepairbly.

Shouldn't there be some solutions:

1. A script could reset all relevant dates and the timestamp i the zodb.

2. The zope code should be changed so that the timestamp depended directly on 
the pc-clock notwithstanding the dates of the objects thus allowing for going 
backward in time.

Flemming


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Re: [Zope] How can I reset zope time???

2007-03-23 Thread Andreas Jung



--On 23. März 2007 16:09:15 +0100 flem [EMAIL PROTECTED] wrote:




I think this kind af date-deadlock is a vulnerability of the zope
architecture. Is it the same thing with zope3? Isn't it an unnecessary
vulnerability that an open zwiki comments field - or any other object
making act open to the public where the anyone can set the date - can
corrupt the time system irrepairbly.

Shouldn't there be some solutions:

1. A script could reset all relevant dates and the timestamp i the zodb.

2. The zope code should be changed so that the timestamp depended
directly on the pc-clock notwithstanding the dates of the objects thus
allowing for going backward in time.



I am not getting the point. What do you want to tell us?

-aj

pgpcdhZmOtsJZ.pgp
Description: PGP signature
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Re: [Zope] Corrupted ZPT Locks Me Out Of Folder

2007-03-23 Thread Martijn Pieters

On 3/23/07, Mark, Jonathan (Integic) [EMAIL PROTECTED] wrote:

Module TAL.XMLParser, line 48, in __init__
Module TAL.XMLParser, line 72, in createParser


Nothing got corrupted, your python lost it's expat XML parser:

   def createParser(self, encoding=None):
   global XMLParseError
   try:
   from Products.ParsedXML.Expat import pyexpat
   XMLParseError = pyexpat.ExpatError
   return pyexpat.ParserCreate(encoding, ' ')
   except ImportError:
   from xml.parsers import expat
   XMLParseError = expat.ExpatError
   return expat.ParserCreate(encoding, ' ')

In other words, reinstall expat and your ZPT page will reappear.

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Re: [Zope] context.user at ImplPython.py

2007-03-23 Thread Martijn Pieters

Please keep the mailing list in the loop, others may have insights too.

On 23. mar. 2007, at 15.37, Garito wrote:

 If you read the link I put, you could read I can create (with
 CrearFuncionalidad) but not delete it (with BorrarFuncionalidad)  
that seems

 to have the same security necessities

Return a callable from your traverser (so return the __call__, don't
call it yourself). The publisher will call it for you after the user
has been authenticated.


As Dieter said __bobo_traverse__ can't return strings or ints for  
that I create (as he tall me, thanks again) a wrapper that returns  
the rendered code


Fine, that's what I ment. But your wrapper should implement a  
__call__ method. The publisher will call that method at a time where  
security *has* been set up.


Do make sure that you wrap your wrapper in the correct security  
context though:


class Wrapper(Acquisition.Implicit):
def __call__(self):
# Things that need a security context need to be done here.
return getSecurityManager().getAuthenticatedUser().getId()

class SomeItem(SimpleItem):
def __bobo_traverse__(self, REQUEST, name):
if name == 'Wrapper':
return Wrapper().__of__(self)
else:
return getattr(self, name)

This way the security policies can still look up the security context.

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Re: [Zope] context.user at ImplPython.py

2007-03-23 Thread Garito

I don't know if I understand what you say
This is the code of one of my wrappers (str one):

class WrapperStr(str):

   __roles__ = None

   def __bobo_traverse__(self, REQUEST, nombre):
   obj = getattr(self, nombre, None)
   if obj is None: return self
   else: return obj

How could be the __call__? like:

def __call__(self):
 return what to return here?

Thanks!

2007/3/23, Martijn Pieters [EMAIL PROTECTED]:


Please keep the mailing list in the loop, others may have insights too.

On 23. mar. 2007, at 15.37, Garito wrote:
  If you read the link I put, you could read I can create (with
  CrearFuncionalidad) but not delete it (with BorrarFuncionalidad)
 that seems
  to have the same security necessities

 Return a callable from your traverser (so return the __call__, don't
 call it yourself). The publisher will call it for you after the user
 has been authenticated.

 As Dieter said __bobo_traverse__ can't return strings or ints for
 that I create (as he tall me, thanks again) a wrapper that returns
 the rendered code

Fine, that's what I ment. But your wrapper should implement a
__call__ method. The publisher will call that method at a time where
security *has* been set up.

Do make sure that you wrap your wrapper in the correct security
context though:

class Wrapper(Acquisition.Implicit):
 def __call__(self):
 # Things that need a security context need to be done here.
 return getSecurityManager().getAuthenticatedUser().getId()

class SomeItem(SimpleItem):
 def __bobo_traverse__(self, REQUEST, name):
 if name == 'Wrapper':
 return Wrapper().__of__(self)
 else:
 return getattr(self, name)

This way the security policies can still look up the security context.

--
Martijn Pieters





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Re: [Zope] context.user at ImplPython.py

2007-03-23 Thread Martijn Pieters

On 3/23/07, Garito [EMAIL PROTECTED] wrote:

I don't know if I understand what you say
This is the code of one of my wrappers (str one):

class WrapperStr(str):
 
__roles__ = None

def __bobo_traverse__(self, REQUEST, nombre):
obj = getattr(self, nombre, None)
if obj is None: return self
else: return obj


What kind of object is obj? It should probably be acquisition wrapped
(return obj.__of__(self).


How could be the __call__? like:

def __call__(self):
  return what to return here?


The object returned from __bobo_traverse__ will be called by the
publisher, so *it* needs to implement __call__, but index_html and
__str__ may also do.

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Re: [Zope] context.user at ImplPython.py

2007-03-23 Thread Garito

Wow! Now I' more confused than before

I create WrapperStr class because the __bobo_traverse__ of my product has
problems to return a str

But when I try to use it it has an error (I don't remember what, sorry) that
dissapears when I create the wrapper's __bobo_traverse__. I copy the
behavior from my product's __bobo_traverse__ (I don't know so much what I'm
doing I confess)

Then my wrapper is an intuitive wrapper

Can you lighten about how need to construct a good wrapper?

Thanks!

2007/3/23, Martijn Pieters [EMAIL PROTECTED]:


On 3/23/07, Garito [EMAIL PROTECTED] wrote:
 I don't know if I understand what you say
 This is the code of one of my wrappers (str one):

 class WrapperStr(str):
  
 __roles__ = None

 def __bobo_traverse__(self, REQUEST, nombre):
 obj = getattr(self, nombre, None)
 if obj is None: return self
 else: return obj

What kind of object is obj? It should probably be acquisition wrapped
(return obj.__of__(self).

 How could be the __call__? like:

 def __call__(self):
   return what to return here?

The object returned from __bobo_traverse__ will be called by the
publisher, so *it* needs to implement __call__, but index_html and
__str__ may also do.

--
Martijn Pieters





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Re: [Zope] context.user at ImplPython.py

2007-03-23 Thread Martijn Pieters

On 3/23/07, Garito [EMAIL PROTECTED] wrote:

But when I try to use it it has an error (I don't remember what, sorry) that
dissapears when I create the wrapper's __bobo_traverse__. I copy the
behavior from my product's __bobo_traverse__ (I don't know so much what I'm
doing I confess)

Then my wrapper is an intuitive wrapper


We are getting beyond mailing list support capabilities then, at least
for me. Hacking about with __bobo_traverse__ and such requires a
certain level of insight into the Zope publishing mechanisms that you
seem to lack, and take some time to explain.

I am not familiar with the contents of Zope books here, so I can't
directly recommend anything here either.

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Re: [Zope] context.user at ImplPython.py

2007-03-23 Thread Garito

Thanks Martijn!
I think if I'm not familiar with zope book I can't program what I'm
programming

But, no problem

I try and try to find a solution to my problem

Thanks for your clues

2007/3/23, Martijn Pieters [EMAIL PROTECTED]:


On 3/23/07, Garito [EMAIL PROTECTED] wrote:
 But when I try to use it it has an error (I don't remember what, sorry)
that
 dissapears when I create the wrapper's __bobo_traverse__. I copy the
 behavior from my product's __bobo_traverse__ (I don't know so much what
I'm
 doing I confess)

 Then my wrapper is an intuitive wrapper

We are getting beyond mailing list support capabilities then, at least
for me. Hacking about with __bobo_traverse__ and such requires a
certain level of insight into the Zope publishing mechanisms that you
seem to lack, and take some time to explain.

I am not familiar with the contents of Zope books here, so I can't
directly recommend anything here either.

--
Martijn Pieters





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http://blogs.sistes.net/Garito
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[Zope] V iewlet in rotterdam?

2007-03-23 Thread Derek Richardson

Zope 3.3

I want to add a viewlet to the rotterdam skin. I don't want to create my 
own skin. is there an accepted way of doing this? I'm surprised that the 
left sidebar in rotterdam doesn't appear to have  a viewlet manager. I 
have been unable to find any declarations in zcml (grepped for 
viewletManager through the entire zope source, didn't see anything 
relevant).


It looks like rotterdam makes do with macros, instead of using viewlets. 
Is there a reason for this? Seems like the left sidebar is perfect for a 
manager, with a viewlet for navigation and another for the add menu.


I am writing a syndication (web feeds: Atom, RSS, etc) package for zope 
and want to plug my viewlet for accessing feed links directly into 
rotterdam. Perhaps this isn't the way to do it, but it seems to me that 
a package like mine that provides general functionality shouldn't define 
its own skin, but should be usable in other skins. Am I wrong?


Thanks,

Derek

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Re: [Zope] context.user at ImplPython.py

2007-03-23 Thread Garito

Do you refer something like this?:

class WrapperUnicode(unicode):

   __roles__ = None

   def __init__(self, cadena):
   self.cadena = cadena

   def __bobo_traverse__(self, REQUEST, nombre):
   obj = getattr(self, nombre, None)
   if obj is None: return self
   else: return obj.__of__(self)

   def __call__(self):
   return self.cadena

   def __str__(self):
   return str(self.cadena.decode('latin-1'))

2007/3/23, Garito [EMAIL PROTECTED]:


Thanks Martijn!
I think if I'm not familiar with zope book I can't program what I'm
programming

But, no problem

I try and try to find a solution to my problem

Thanks for your clues

2007/3/23, Martijn Pieters [EMAIL PROTECTED]:

 On 3/23/07, Garito [EMAIL PROTECTED] wrote:
  But when I try to use it it has an error (I don't remember what,
 sorry) that
  dissapears when I create the wrapper's __bobo_traverse__. I copy the
  behavior from my product's __bobo_traverse__ (I don't know so much
 what I'm
  doing I confess)
 
  Then my wrapper is an intuitive wrapper

 We are getting beyond mailing list support capabilities then, at least
 for me. Hacking about with __bobo_traverse__ and such requires a
 certain level of insight into the Zope publishing mechanisms that you
 seem to lack, and take some time to explain.

 I am not familiar with the contents of Zope books here, so I can't
 directly recommend anything here either.

 --
 Martijn Pieters




--
Mis Cosas
http://blogs.sistes.net/Garito





--
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http://blogs.sistes.net/Garito
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Re: [Zope] V iewlet in rotterdam?

2007-03-23 Thread Martin Aspeli



Derek Richardson-2 wrote:
 
 Zope 3.3
 
 I want to add a viewlet to the rotterdam skin. I don't want to create my 
 own skin. is there an accepted way of doing this? I'm surprised that the 
 left sidebar in rotterdam doesn't appear to have  a viewlet manager. I 
 have been unable to find any declarations in zcml (grepped for 
 viewletManager through the entire zope source, didn't see anything 
 relevant).
 
 It looks like rotterdam makes do with macros, instead of using viewlets. 
 Is there a reason for this? Seems like the left sidebar is perfect for a 
 manager, with a viewlet for navigation and another for the add menu.
 
 I am writing a syndication (web feeds: Atom, RSS, etc) package for zope 
 and want to plug my viewlet for accessing feed links directly into 
 rotterdam. Perhaps this isn't the way to do it, but it seems to me that 
 a package like mine that provides general functionality shouldn't define 
 its own skin, but should be usable in other skins. Am I wrong?
 

From what I understand, Rotterdam is pretty old, and people generally create
their own skins from scratch.

I don't think a generic component that provides a service (syndication)
should be trying to blanket impose a UI. If you want a demo UI, then have a
separate package for this, which shows an example UI. The generic component
could still have a viewlet, just not wire it up.

Martin

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Sent from the Zope - General mailing list archive at Nabble.com.

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Re: [Zope] Attribute error

2007-03-23 Thread Maciej Wisniowski

 Hi,
 
 I'm pretty new to Zope; I inherited the system when I started my new job.
 We use it to manage a college web site.  I noticed yesterday that several
 pages in our Student Services section will no longer load.  Every time I
 try, I get this:
 
 Error Type: AttributeError
 Error Value: visible
 
 And I have no idea what it means or how to fix it.  Any suggestions would be
 much appreciated.
You have to start learning about python and zope :)

Take a look at site error log (via ZMI) or at event.log in the
filesystem to see full error traceback.

-- 
Maciej Wisniowski
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Re: [Zope] Attribute error

2007-03-23 Thread Paul Winkler
On Fri, Mar 23, 2007 at 02:56:31PM -0500, Catherine E. Reinehr wrote:
 Hi,
 
 I'm pretty new to Zope; I inherited the system when I started my new job.
 We use it to manage a college web site.  I noticed yesterday that several
 pages in our Student Services section will no longer load.  Every time I
 try, I get this:
 
 Error Type: AttributeError
 Error Value: visible
 
 And I have no idea what it means or how to fix it.  Any suggestions would be
 much appreciated.
 
 Thanks,
 Catherine

Not enough information... so the first thing to do is go into the zope
management interface, click on the /error_log link, and find your
error listed there.  Click on it to get a more complete traceback.
Reply here with that information and you're more likely to get a
useful response.

-- 

Paul Winkler
http://www.slinkp.com
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RE: [Zope] Attribute error

2007-03-23 Thread Catherine E. Reinehr
I knew as soon as I asked for help, I would figure it out.  Turns out when I
added a folder in that section, I forgot to add the attributes visible and
order.  All better now.

Thank you anyway!
Catherine

-

Webmaster  Publications Designer
Huntingdon College
1500 E. Fairview Ave.
Montgomery, AL 36106
(334) 833-4429 / Flowers 103

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul
Winkler
Sent: Friday, March 23, 2007 3:12 PM
To: zope@zope.org
Subject: Re: [Zope] Attribute error

On Fri, Mar 23, 2007 at 02:56:31PM -0500, Catherine E. Reinehr wrote:
 Hi,
 
 I'm pretty new to Zope; I inherited the system when I started my new job.
 We use it to manage a college web site.  I noticed yesterday that several
 pages in our Student Services section will no longer load.  Every time I
 try, I get this:
 
 Error Type: AttributeError
 Error Value: visible
 
 And I have no idea what it means or how to fix it.  Any suggestions would
be
 much appreciated.
 
 Thanks,
 Catherine

Not enough information... so the first thing to do is go into the zope
management interface, click on the /error_log link, and find your
error listed there.  Click on it to get a more complete traceback.
Reply here with that information and you're more likely to get a
useful response.

-- 

Paul Winkler
http://www.slinkp.com
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Re: [Zope] Problem with __before_publishing_traverse__

2007-03-23 Thread Dieter Maurer
Peter Bengtsson wrote at 2007-3-23 13:29 +:
I have a product that looks like this::

class MyApp(Something):
   meta_type = 'x'
   def foobar(self):
doc str 
   return xxx
   def __before_publishing_traverse__(self, object, request=None):
   print HOUSTON
 ...
When I view objects of this class I'd expect Zope to call the 
__before_publishing_traverse__ hook and print HOUSTON, but it doesn't :(
 ...
 if object.__class__.__name__ == 'MyApp':
 print object.foobar()
 print object.foobar
 print object.__before_publishing_traverse__(object, self)
 print bpth
  path = request.path = request['TraversalRequestNameStack']



When I look at the output of this I get:

xxx
bound method MyApp.foobar of MyApp at /IMS
None

Maybe, instead of foobar, you should print __before_publishing_traverse__.

  Five started to fiddle around with __before_publishing_traverse__
  (to make Zope 3 traversal available) and maybe this introduced
  the bug no longer to call the existing __before_publishing_traverse__?



-- 
Dieter
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