Re: [Zope-dev] Added rename to ZOPE FTP server (another bug: jpg images are not autodetected)

2001-01-28 Thread Tom Vijlbrief

Joachim Werner wrote:
 
 Hi!
 
 I've found one problem with FTP and KDE: jpg-images are uploaded as
 files, not images. This works fine with wedav (tried cadaver) and plain
 command line FTP, but using KDE2 konqueror it doesn't work. Maybe
 because of the partial upload magic it does?
 

Yes, I checked the code (ZClasses/Method.py, PUT_factory)
and that's the reason. The Zope ftp server checks the extension
when a file is created with "put", but not when it is renamed
to a file with the .jpg (or other) extension.

A method manage_FTPrename should be added to this
file which does the same checks.

Fixing this bug and the problem with identical named files in
different directories in the object filesystem tree (described
in my original posting) should not be very hard
to fix for someone with knowledge of the object file system.

I don't have that knowledge so I'll leave it to others to
fix. I suggest posting both problems in the bug collector...

Tom

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[Zope-dev] How to avoid ConflictErrors ?

2001-01-28 Thread Morten W. Petersen

Hi zopers,

I'm having problems with a product I'm developing.  The product is part of the
ZopeGUM package, the GUM product.  If you have a look in gum.py in that
product, you can see a method named _retrieve_messages, which can at
times store enourmous amounts of objects and data in one transaction.

Now, if I access the GUM instance at the same time as this method is being
called, I may either get a ConflictError raised in the page, or in the
Zope debug output. 

I've read all the posts I could find regarding ConflictErrors, and they
mention that careful programming could help in avoiding these exceptions.
I'm assuming that this applies only to whenever two threads are trying
to *modify* the same object; and frankly, I can't see where I'm modifying
any objects, unless modifying one object, an rfc822_message instance in
a message_container instance also somehow modifies the message_container.

Any idea what I'm doing wrong?

Thanks  cheers,

Morten

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Re: [Zope-dev] How to avoid ConflictErrors ?

2001-01-28 Thread Morten W. Petersen

[Chris Withers]

| Please check that both rfc822_message and message_container subclass
| Persistence.Persistent.

They do.  *ponder*

-Morten

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[Zope-dev] Re: [Zope] Creating a namespace

2001-01-28 Thread Chris Withers

Stephan Richter wrote:
 
 ...and search the list archives.
 
 The e-groups search is pointless and never gives you anything useful (I did
 that already).

So use the ones at NIP:

http://zope.nipltd.com/public/lists.html

 Thanks so much for your hints, but I am just a little frustrated right now
 (not because of you), since some of the Zope code looks like a hack. I
 could live without documentation, if the code would be some sort of readable.

Well, maybe if you explained exactly what you're trying to do, we could be more
helpful ;-)

cheers,

Chris

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[Zope-dev] 2.3.0 ZCatalog Copy Paste Bug Fixed :-)

2001-01-28 Thread Chris Withers

 ...but the error message looks better ;^)=

Oh boy, Chris P's gonna kick himself for this one ;-)

The idea was to change the meta_type of ZCatalog to Z Catalog so it was like
everything else in core Zope, but he left a 'bad' line in ZCatalog.py. The
patch below fixes the problem.

*grinz*

Chris

--- zcatalog.py.old Fri Jan 26 14:03:24 2001
+++ zcatalog.py Sun Jan 28 20:31:50 2001
@@ -141,7 +141,6 @@

 """

-meta_type = "ZCatalog"
 icon='misc_/ZCatalog/ZCatalog.gif'

 manage_options = (


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Re: [Zope-dev] asynchat producer ready() method patch.

2001-01-28 Thread Dieter Maurer

Donovan Baarda writes:
  I remember reading ages ago on a wishlist for ZServer that someone was
  thinking of adding blocking support to producers. This patch adds support
  for just that in a non-intrusive way. I haven't tried applying this patch to
  ZServer, but it _should_ work.
What does "blocking support dor producers" mean?



Dieter

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Re: [Zope-dev] ZCatalog Bug Fix II

2001-01-28 Thread Chris Withers

 Chris Withers wrote:
 
  Okay, tracked down what's happening, can't understand why :-(

Now I can... convoluted but with a simple answer ;-)

 As to why the object is on the top of the namespace, I dunno whether it's
 dtml-in or ZCatalog that's responsible...

The reason for this, was because the object was being acquired. The naming
similarity was pure chance. I had an index called TestCase in the catalog,
the same name as the DTML method for the form. I _didn't_ have a column
called TestCase in the ZCatalog MetaData, so when the result-displaying DTML
method tried to dtml-var it, it was acquired, and hence the method was
plopped on top of the namespace.

The actual problem is that ZCatalog was using the indexes instead of the
metadata when telling Z Search was results form to build. The following
patch solves that, I'm sure I put it in the collector when I moved Squishdot
to use ZCatalog too :-S

cheers,

Chris

--- zcatalog.py.old2 Sun Jan 28 20:56:06 2001
+++ zcatalog.py Sun Jan 28 21:00:09 2001
@@ -486,7 +486,7 @@

 def _searchable_result_columns(self):
 r = []
-for name in self._catalog.indexes.keys():
+for name in self._catalog.schema.keys():
 i = {}
 i['name'] = name
 i['type'] = 's'

PS: I won't bother with the collector on this one, since both relevent
people are already being CC'ed ;-)


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[Zope-dev] ZDebug patch for 2.3.0

2001-01-28 Thread Chris Withers

The patch below got ZDebug working with Zope 2.3.0 for me. Hope I didn't
miss anything ;-)

cheers,

Chris

--- debugsecuritypolicy.py.old Sun Jan 28 21:59:23 2001
+++ debugsecuritypolicy.py Sun Jan 28 22:07:21 2001
@@ -89,7 +89,7 @@
 __version__='$Revision: 1.4 $'[11:-2]

 from AccessControl import SimpleObjectPolicies
-_noroles=[]
+_noroles=SimpleObjectPolicies._noroles

 from AccessControl.PermissionRole import \
  _what_not_even_god_should_do, rolesForPermissionOn
@@ -99,7 +99,7 @@
 class DebugSecurityPolicy:

 def validate(self, accessed, container, name, value, context,
- None=None, type=type, IntType=type(0), DictType=type({}),
+ roles=_noroles, None=None, type=type, IntType=type(0),
DictType=type({}),
  getattr=getattr, _noroles=_noroles, StringType=type(''),
  Containers=SimpleObjectPolicies.Containers,
  valid_aq_=('aq_parent','aq_explicit')):
@@ -116,7 +116,8 @@

 
 # Try to get roles
-roles=getattr(value, '__roles__', _noroles)
+if roles is _noroles:
+roles=getattr(value, '__roles__', _noroles)

 if roles is _noroles:

@@ -174,7 +175,14 @@
 value=container

 # Short-circuit tests if we can:
-if roles is None or 'Anonymous' in roles: return 1
+try:
+if roles is None or 'Anonymous' in roles: return 1
+except TypeError:
+# 'roles' isn't a sequence
+LOG('Zope Security Policy', PROBLEM, "'%s' passed as roles"
+" during validation of '%s' is not a sequence." % (
+`roles`, name))
+raise

 # Check executable security
 stack=context.stack



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[Zope-dev] Re: Creating a namespace

2001-01-28 Thread Michael Halle


Stephan Richter [EMAIL PROTECTED] writes: 

 I want to make my own name space with the following situation:
 class X:
 attributes = {'foo': 'bar'}
 x = X()
 Then I want to use it like that:
 dtml-with x
   dtml-var foo
 /dtml-with

I puzzled through a related problem a little, but for (I think) a
different reason.  I have an External Method that takes a significant
amount of time to run, and returns a collection of data. I didn't want
to have to push the names of all the subvariables returned onto the
stack; that pollutes the name space.  What I wanted to do was the
following:

dtml-let x="MyExternalMethod(arg1, arg2)"
Variable 1: dtml-var expr="x.variable1" br
Variable 2: dtml-var expr="x.variable2" br
/dtml-let

(But, as in your case, I could also have done:

 dtml-with expr="MyExternalMethod(arg1, arg2)"
Variable 1: dtml-var expr="variable1" br
Variable 2: dtml-var expr="variable2" br
 /dtml-let )


To me, this first example seemed like a pretty common and obvious
thing to to.  I didn't need "x" to be persistent, I didn't need or
want acqusition, I just wanted to keep my variables containerized in a
structure.  For this purpose, FunctionTemplate, InstanceDict, and
TemplateDict all seemed either inappropriate, too complex, or too
heavyweight.

So, I wrote the simple container class at the end of this message that
contains a grab-bag of methods that can be used for my application as
well as with a variety of others that use dtml-with and dtml-in.
It essentially provides all that "_.namespace()" does, plus some extra
introspection.  It's concocted from various pieces of Zope and the
HowTos.

Now, philosophical Zope questions:

* To those in the know, is there any problems returning non-persistent
structures?

* Next, it there a reason that there's no sanctioned class for this
purpose?

* Can you return a populated namespace from a DTML Method or a Python Script
using existing mechanisms?

* Why can't you set values in "_.namespace()" in DTML after a
namespace has been created?

* To me, it would make so much more sense to be able create a namespace
with temporary variables (as shown in one of the HowTos) rather than
forcing people to hack them using REQUEST.set().  The namespace
could be used directly as a structure (eg, "ns.x") or as a scope 
(eg, dtml-with ns dtml-var x /dtml-with ).  Is there a deep
reason it doesn't exist?

Anyway, here's my "no-guarantee" class.  Notice the magic member
"__allow_access_to_unprotected_subobjects__", which the documentation
(read, code) says can also be set to a list of members that you want
to be publicly accessible and unprotected.  Use this code as a guide;
you can trim it down to get what you want.  An instance of this class
can be used directly as an argument to dtml-with; to use with
dtml-in, use either the "getItems" or "getMap()" methods.


-

class StructureInstance:
"""A simple, non-persistent, class-based dictionary
that's useful for returning arguments to Zope"""

__allow_access_to_unprotected_subobjects__ = 1

def __init__(self, dict={}):
self.__d=dict

def __getattr__(self, name):
try: return self.__d[name]
except KeyError: raise AttributeError, name

def __getitem__(self, name):
try: return self.__d[name]
except KeyError: raise KeyError, name

def __setitem__(self, name, value):
self.__d[name] = value

def update(self, dict):
self.__d.update(dict)

def getKeys(self, spec=None):
if spec is None:
return self.__d.keys()

return filter((lambda x, spec=spec: x in spec), self.__d.keys())

def getValues(self, spec=None):
if spec is None:
return self.__d.values()

return map(lambda y: y[1],
  filter((lambda x, spec=spec: x[0] in spec),
 self.__d.keys()))

def getItems(self, spec=None):
if spec is None:
return self.__d.items()

return filter((lambda x, spec=spec: x[0] in spec), self.__d.items())

def getMap(self, spec=None):
items = self.getItems(spec)
dict = {}
for (i, j) in items:
dict[i] = j
return dict

def set(self, **args):
self.update(args)

setitem=__setitem__


---
Michael Halle
[EMAIL PROTECTED]


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Re: [Zope-dev] Possible TransparentFolders bug?

2001-01-28 Thread Itai Tavor

I can't reproduce this problem myself. In fact, as of this morning it 
doesn't happen anymore. Guess it was just one of those flukes the 
universe throws at me to try to convince me to move to another 
universe.

Shane Hathaway wrote:

Itai Tavor wrote:
  The TransparentFolders Product seems to make everything
  transparent... not just transparent folders.

  Zope/
   Folder_A/
   method_A
   Folder_B/ (transparent folder)
   method_B

  I'd expect the only effect of the transparent folder to be that
  /Folder_A/method_B would work. But /method_A and /method_B also work.
  Tested in Zope 2.3b2 and 2.3b3 with TransparentFolders 0.3.

Hmm... I can't get mine to do that.  You're sure Folder_A isn't
transparent also?  Did you ever have a transparent folder by that name,
in that same place?  (Indicating a bug)

Otherwise leaving things as they are, if you put a transparent folder at
the root of the site, do you still get the same behavior?

What path does it tell you if you visit
http://yourserver:8080/method_{A|B}/manage_main?

Shane

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[Zope-dev] Unable to clear proxy roles in Zope 2.3.0

2001-01-28 Thread Dirksen

In Zope 2.2.x, one can clear the proxy roles for one method by unseleting all proxy
roles. In Zope 2.3.0, this lets to this error: You must select one or more proxy roles.
Is it a bug, or is it done in a different fashion?

cheers
Dirksen

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[Zope-dev] 2.3.0 release badness

2001-01-28 Thread richard

I've just updated to 2.3.0 release using CVS. My CSS serving has
subsequently broken. The CSS serving worked fine with the CVS code from
2.3.0b2. I didn't get to check b3 - we had a public holiday on Friday and
that meant that the one working day assigned to the b3 release was lost to
me (and _most_ other Australians). Anyway, that's a separate issue ...

I've done a diff against the CVS as of last Tuesday, but I can't see an
obvious place where the Zope code has changed to make the CSS serving fail.

Under Netscape (versions 4.72 - 4.75), a 'back button' request results in
a truncated plain-text display of the CSS that is linked from the page. The
zope server log shows the request as being successfully served. I telnet'ed
to the server and requested the CSS manually, and the headers all look
fine. A packet sniffer seems to say that all is well.

Now for the fun: this only happens for local requests - someone requesting
the same pages over the ethernet will get them fine. Only Netscape and only
locally. Konqueror locally works fine.

The CSS is being served using the attached class.

Some further experimentation:
1. load the same page five times as follows:
  http://mymachine:8080/blah/
  http://127.0.0.1:8080/blah/
  http://127.0.0.2:8080/blah/
  http://10.0.0.20:8080/blah/
  http://127.0.0.3:8080/blah/
2. starting from either end of those URLs in the browser history, hit the
'forward' button or 'back' button four times to get to the other end.
3. note that the first hit of 'forward' or 'back' (and sometimes other hits
too) the CSS is served as plain text

Of course, embedding the style in the page (a-la the Zope management
interface) gets around this problem, but this is not an option for us.

Again, this was not a problem pre 2.3.0 b3 / release...


   Richard

-- 
Richard Jones
[EMAIL PROTECTED]
Senior Software Developer, Bizar Software (www.bizarsoftware.com.au)
 CSSFile.py


Re: [Zope-dev] 2.3.0 release badness

2001-01-28 Thread Pablo Bleyer Kocik

[EMAIL PROTECTED] wrote:

 I've just updated to 2.3.0 release using CVS. My CSS serving has
 subsequently broken. The CSS serving worked fine with the CVS code from
 2.3.0b2. I didn't get to check b3 - we had a public holiday on Friday and
 that meant that the one working day assigned to the b3 release was lost to
 me (and _most_ other Australians). Anyway, that's a separate issue ...
 (...)
 Under Netscape (versions 4.72 - 4.75), a 'back button' request results in
 a truncated plain-text display of the CSS that is linked from the page. The
 zope server log shows the request as being successfully served. I telnet'ed
 to the server and requested the CSS manually, and the headers all look
 fine. A packet sniffer seems to say that all is well.
 (...)
 Now for the fun: this only happens for local requests - someone requesting
 the same pages over the ethernet will get them fine. Only Netscape and only
 locally. Konqueror locally works fine.
 (...)
 Again, this was not a problem pre 2.3.0 b3 / release...

Richard

Hi!

Nope, this is not only a problem of 2.3.0. I have had the same issue in all
of the 2.3.0x Zope versions, and the problem is not really Zope but Netscape
4.X.

For me, the trouble arises once in a while and specially when I start doing
page reloads quickly. It seems that, when Zope starts serving the document,
Netscape asks for the stylesheet file almost instantly (because it is inside
the HTML's header) and then a sort of synchronizing error happens. When you are
at the local machine the delay between the document requests is larger so the
problem is less frequent.

I have never seen the problem under Netscape 6 or Mozilla. I don't know to
what extent this could be Zope's fault.

Cheers!

--
Pablo Bleyer Kocik |
pbleyer|"Rintrah roars  shakes his fires in the burdend air;
  @embedded.cl | Hungry clouds swag on the deep" — William Blake



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Re: [Zope-dev] asynchat producer ready() method patch.

2001-01-28 Thread Donovan Baarda

On Sun, Jan 28, 2001 at 09:31:07PM +0100, Dieter Maurer wrote:
 Donovan Baarda writes:
   I remember reading ages ago on a wishlist for ZServer that someone was
   thinking of adding blocking support to producers. This patch adds support
   for just that in a non-intrusive way. I haven't tried applying this patch to
   ZServer, but it _should_ work.
 What does "blocking support dor producers" mean?

Disclaimer: you must be moderately familiar with ZServer/medusa/asynchat for
the following to make sense;

Asynchat used by ZServer and medusa use producers as a way to "push" data
through an async interface. The current version of asynchat requires that
producers be able to produce data immediately on calling their more()
method, untill they are finished, when they return ''. 

My patch adds support for producers being able to "block" by letting
asynchat know if they are ready via a ready() method. This allows you to use
the simple producer model to push data that may not be immediately
available. An example would be a http-fetch producer that fetches data from
upstream for a proxy.

This patch is only useful for people creating or modifying things like
medusa or ZServer.

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Re: [Zope-dev] 2.3.0 release badness

2001-01-28 Thread Pablo Bleyer Kocik

 the HTML's header) and then a sort of synchronizing error happens. When you are
 at the local machine the delay between the document requests is larger so the


Oops. That should be "When you are *not* at the local machine...". Sorry ;^)

--
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  @embedded.cl | Hungry clouds swag on the deep" — William Blake



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[Zope] migration issues - 2.2.4 - 2.30

2001-01-28 Thread Lee

Hi there,

I've been developing an application on Win32 using Zope 2.2.4 and a
Gadfly database. Now that I've got a working prototype I will me
rebuilding my app on Zope 2.3 in Unix using a MySQL database...
tomorrow. I expect the process won't be a simple job i.e. copying 
pasting *won't* do the trick ;-)

I just have a few questions about the problems I expect to run into:

1- Python methods/scripts. In changing my python methods to python
scripts will I need to make any drastic changes or will they perform
just the same if I have the *exact* same content in them?

2- MySQL DBA. I'm not responsible for installing Zope or the MySQL DBA
on the Unix machine but from what I understand, people have had a few
problems working with MySQL DBA. What problems can I expect?

3- I would like to backup what I have done on my home machine and copy
it to another windows machine at uni (that I can reference when I'm
building on the Unix version). I don't have access to the Unix machine
from outside uni so, apart from copying the source into text files, is
there a way I can *copy* Zope's files and place them on another machine?

Hmm...

I expect I'll be bombarding the list with questions these coming weeks.

Thanks in advance for any information/advice you can offer.

- Best regards,

Lee



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[Zope] Re: Zope Inheritance with ZClasse

2001-01-28 Thread Martijn Pieters

Hi Ernesto,

The best place to ask these questsions is on the [EMAIL PROTECTED]
mailinglist. More information about the mailinglists can be found at:

  http://www.zope.org/Resources/MailingLists/

I forwarded your mail to the list. Hope this helps!

On Sun, Jan 28, 2001 at 08:14:18AM -0500, Ernesto Revilla wrote:
 Dear Developers of Zope,
 
 I'm trying to model an ERP system using ZClasses. As I have the model
 running under MS-Access, I know exactly how the model has to be. It's
 natural form is very, very object-oriented and requires inheritance.
 
 I made a simple example model using ZClasses, but the environment does
 not work how I did expect. Example:
 
 I have orders, delivery notes and invoices. Meanwhile the three are
 based on the same base ZClass (say OrdDelInv), orders and delivery notes
 are based also on a common ZClass (say OrdDel) based on OrdDelInv.
 Defining a General Property Sheet for each class, and designing the
 properties needed for each class, and defining a General view for the
 General Property Sheel in the base classes (OrdDel and OrdDelInv), not
 the bottom-level (Orders and Delivery Notes), the environment should me
 offer a 'General' View for each Order or Delivery Note I create.
 
 So, 
 
 1. views are not inherited, from one base class to a sub class?
 
 2. Property Sheets do not mix up the properties defined in each class of
 the class hierarchy, making able to edit them all in the same view?
 
 Best regards, Erny
 
 

-- 
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| Software Engineer  mailto:[EMAIL PROTECTED]
| Digital Creations  http://www.digicool.com/
| Creators of Zope   http://www.zope.org/
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Re: [Zope] sending variables/parameters via hyperlink

2001-01-28 Thread Chris Withers

Dieter Maurer wrote:
 
 This should work *IF* the URL does not contain funny characters.
 
 Note that many characters are not allowed in URL's and
 especially "value" above must not contain blanks (as per HTML 4.x
 and CGI). Such values must be quoted with "url_quote_plus".

Why is it so bad if values contain spaces?

This is the same area as why variables supplied without a value, eg:
http://server/method?paramater

...don't end up in the namespace, eg, from the above example:

REQUEST['paramater']=None

cheers,

Chris

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[Zope] How can a document know its own URL?

2001-01-28 Thread Brendon Grunewald



Can anyone tell me how to use DTML to get at the 
URL for the document being displayed?

I want to display the URL of the 
documentbeing displayed inside of the document being 
displayed.
Something like:

b
 You are now viewing the following URL: 
dtml-var Some_DTML_var
/b

Similar to the dtml-var title_or_id var, 
but for the whole URL not just the documents name or title...

I've tried looking at the mailing list archives, 
but it is either not there or my search criteria are not as accurate as they 
should...

---Brendon Grunewald

70South: The no1. source for 
Antarcticles.Updated daily with the latest news and views on Antarctica and 
other polar issues.


Re: [Zope] DTML namespace puzzle

2001-01-28 Thread Dieter Maurer

Ron Bickers writes:
  I have a Python Script (sendOrder) that calls a DTML method (orderMessage)
  as follows:
  
container.orderMessage(num=num, SESSION=SESSION)
  
  orderMessage contains the following:
  
dtml-with "SESSION['info']" mapping
Order Number: dtml-var num
Blah blah other session variables that work fine.
/dtml-with
  
  I get a KeyError on num.  If I modify orderMessage to contain the following,
  it works:
  
dtml-let num=num
dtml-with "SESSION['info']" mapping
Order Number: dtml-var num
Blah blah other session variables that work fine.
/dtml-with
/dtml-let
  
  This seems strange to me.  What am I missing?
I failed to reproduce this in my Zope CVS.

It is puzzling indeed!

Does "SESSION['info']" has a key "num" or do you expect
to access the "num" passed as parameter?
In this case, it might have something to do with permissions,
as Zope sometimes turns insufficient permissions into KeyError.
However, I expect your "SESSION['info']" is a standard dictionary
and then access should by unprotected.

Dieter

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Re: [Zope] sending variables/parameters via hyperlink

2001-01-28 Thread Dieter Maurer

Chris Withers writes:
  Dieter Maurer wrote:
   
   This should work *IF* the URL does not contain funny characters.
   
   Note that many characters are not allowed in URL's and
   especially "value" above must not contain blanks (as per HTML 4.x
   and CGI). Such values must be quoted with "url_quote_plus".
  
  Why is it so bad if values contain spaces?
I think, it was because in early days most CGI scripts
were shell scripts. It is quite hard to pass values
into shell scripts that contain blanks.
Unix shells are very keen to reparse them and break them
up at whitespace into a sequence of words.

Anyway, when you look at the current HTTP (4.01) specification,
you can read that space has to be replaced by '+'.
To be precise, this is a requirement for the
"application/x-www-form-urlencoded" content type.

  This is the same area as why variables supplied without a value, eg:
  http://server/method?paramater
  
  don't end up in the namespace, eg, from the above example:
When I looked at "ZPublisher.cgi", I had the impression
that it treats such constructs as "values" rather than "names"
and associate all of them with 'None'.
If I am right, then ZPublisher does not expose such items.

I did not check the CGI spec to learn what is the correct
behaviour.


Dieter

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Re: [Zope] where are the pages stored?

2001-01-28 Thread Dieter Maurer

Horatio B. Bogbindero writes:
  btw, were does zope store the template pages and objects? i tried do look 
  into the folders but i could not seem to find it. is there are a way of
  moving this document root to a different folder? 
Before Zope 2.3, they were in "lib/python/*/*.dtml".
Since Zope 2.3, they are in "lib/python/*/dtml/".

  also the reason why i have so many questions is because i could not find
  the zope documentation set in the zope source distribution. can someone
  point me out the distribution so that i can read the fine manual(RTFM)
  instead. thanks.
Click on any "Help" button in the Zope management interface.


Dieter

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[Zope] Re: Subtranscations are hacky?

2001-01-28 Thread Dieter Maurer

Chris Withers writes:
  
  What about just putting a try: ... except
  AttributeError around the commit_sub call in Transaction.py? What bad effects
  would that have?
That would probably not be a good idea as it could hide serious
problems. ZCatalog has a similar "try: ... except" and in its
case, many trivial bugs are hidden thereby.

"hasattr(...,'commit_sub')" and "hasattr(,'abort_sub')"
would be a better approach.


Dieter

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[Zope] Re: Subtranscations are hacky?

2001-01-28 Thread Chris Withers

 "hasattr(...,'commit_sub')" and "hasattr(,'abort_sub')"
 would be a better approach.

I'd totally agree :-)

Should I put that in the collector or do you want to?

cheers,

Chris


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Re: [Zope] namespace problems

2001-01-28 Thread Gary Lowder

As an aside: I can get the mess below to work with a python script, BUT,
I don't know how to do the URL redirect with python as it's listed in
the DTML Method.

(python script snippet)

context.manage_addFolder(name, name)

doc=getattr(context, name)
doc.manage_addProperty('number', number, 'int')
doc.manage_addProperty('exp_date', exp_date, 'date')

How would I do the URL redirect using an equivalent to the
dtml-call "RESPONSE.redirect(URL1)"   that's in the DTML Method below?

Many thanks again for your time and effort.
Gary.

Gary Lowder wrote:
 
 I'm currently trying to add a new folder to an old folder, using input
 from a calling form, then add two properties to that new folder.  I
 searched the mailing list, and came up with an example that led me to
 the following, but I'm still getting "Error Type: NameError" "Error
 Value: manage_addProperty".
 
 Where is my mistake?
 
 dtml-comment The following line works as expected./dtml-comment
 
 dtml-call "manage_addFolder(name)"
 
 dtml-commentSomething below here isn't right./dtml-comment
 
 dtml-with "_.getitem(name)"
   dtml-call "manage_addProperty(id='number', value=number,
 type='int')"
   dtml-call "magage_addProperty(id='exp_date', value=exp_date,
 type='date')"
 /dtml-with
 
 dtml-call "RESPONSE.redirect(URL1)"
 
 Thanks for you help!
 Gary.
 
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Re: [Zope] namespace problems

2001-01-28 Thread Chris Withers

 How would I do the URL redirect using an equivalent to the
 dtml-call "RESPONSE.redirect(URL1)"   that's in the DTML Method below?

context.RESPONSE.redirect(URL1)

cheers,

Chris


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Re: [Zope] Did I miss some major change in Z SQL Methods ?

2001-01-28 Thread Curtis Maloney

On Thursday 25 January 2001 21:29, peter bengtson wrote:
 Curtis,
 Doing Z SQL Methods (SELECT) is really easy with DTML.
 When you've got a working example of it in DTML, then we can perhaps help
 you to convert that into Python Method code.

 Cheers, Peter


Peter,

Please, do not mistake me for a newbie.  I have been developing ZOPE 
applications for around a year now.  This time, however, I have decided to 
try to use Python, instead of doing the entire app in DTML.  People say this 
is a 'Bad Thing(tm)'.

The SQL Method works fine.  I can easily test that with the 'Test' tab.  
Really, the only difference now to how I would have previously done this is 
that I have the python method slicing the result for me.

That being said, I have tried removing that, and going to the Z SQL method 
directly, and it STILL doesn't work.

I fear that something is getting lost in the Acquisition...


Have a better one,
Curtis Maloney.

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[Zope] Python Methods can't construct literal dictionaries?

2001-01-28 Thread Fred Yankowski

I'm trying to create a Python Method, using PythonMethod 0-1-7, that
validates a set of form values before updating a database.  I planned
to return any/all errors as a dictionary keyed by the errant field
name.  But statements like this in my Python Method

input_errors = {}
input_errors['password'] = "password must not be empty"
...
return input_errors

result in the following error when I try to save the change to the code:

Error Type: Python Method Error
Error Value: Forbidden operation STORE_SUBSCR at line 3

What's up with that?  I can't create dictionaries in Python Methods?
I must be missing something.  Is there some way around this?

-- 
Fred Yankowski   [EMAIL PROTECTED]  tel: +1.630.879.1312
Principal Consultant www.OntoSys.com   fax: +1.630.879.1370
OntoSys, Inc 38W242 Deerpath Rd, Batavia, IL 60510, USA

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Re: [Zope] separate zope from site products

2001-01-28 Thread Tres Seaver

[EMAIL PROTECTED] asked:

 Ok, I saw it by accident while searching for something else
 the other day, and now can't find the HOWTO on getting
 your Zope install separate from your local products, so that
 future Zope upgrades don't require re-installation of all
 your already existing products.
 
 So where can I find this document I'm looking for?

Evan Simpson's excellent INSTANCE_HOME writeup:

  http://www.zope.org/Members/4am/instancehome

-- 
===
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Digital Creations "Zope Dealers"   http://www.zope.org

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RE: [Zope] DTML namespace puzzle

2001-01-28 Thread Ron Bickers

 -Original Message-
 From: Dieter Maurer [mailto:[EMAIL PROTECTED]]
 Sent: Sunday, January 28, 2001 3:43 PM
 To: Ron Bickers
 Cc: [EMAIL PROTECTED]
 Subject: Re: [Zope] DTML namespace puzzle

 Does "SESSION['info']" has a key "num" or do you expect
 to access the "num" passed as parameter?
 In this case, it might have something to do with permissions,
 as Zope sometimes turns insufficient permissions into KeyError.
 However, I expect your "SESSION['info']" is a standard dictionary
 and then access should by unprotected.

SESSION['info'] does not have a key "num".  The only num is passed as a
parameter.  Did you use SQLSession to try to reproduce it, or just another
mapping?  Could SQLSession have something to do with it?
___

Ron Bickers
Logic Etc, Inc.
[EMAIL PROTECTED]


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Re: [Zope] basic authorization triggered inside LoginManager context

2001-01-28 Thread Tres Seaver

Fred Yankowski [EMAIL PROTECTED] wrote:

 I've set up LoginManager with SQL and it's working OK, but I've run
 into a case where the browser pops up a basic/HTTP authentication
 request when I try to access a particular object inside the
 LoginManager-protected area.
 
 I particular, I added the following line to the index_html DTML
 Document (at the same level as the LoginManager acl_users folder):
 
 dtml-var "_.getattr('AUTHENTICATED_USER', '__class__')"

No can do, no how, no way:  attribute names beginning with "_" are
absolutely verbotten in through-the-web DTML.
 
 Without this line I can access the index_html file after logging in
 via the LoginManager scheme as a user with the 'Members' role.  But
 with this line I get the basic authorization popup and if I cancel
 that I can see the following exception in the "Zope Error" page:
 
 
 Traceback (innermost last):
   File D:\PROGRA~1\Zope225\lib\python\ZPublisher\Publish.py, line 222,
   in publish_module
   File D:\PROGRA~1\Zope225\lib\python\ZPublisher\Publish.py, line 187,
   in publish
   File D:\PROGRA~1\Zope225\lib\python\ZPublisher\Publish.py, line 171,
   in publish
   File D:\PROGRA~1\Zope225\lib\python\ZPublisher\mapply.py, line 160,
   in mapply
 (Object: index_html)
   File D:\PROGRA~1\Zope225\lib\python\ZPublisher\Publish.py, line 112,
   in call_object
 (Object: index_html)
   File D:\PROGRA~1\Zope225\lib\python\OFS\DTMLDocument.py, line 177,
   in __call__
 (Object: index_html)
   File D:\PROGRA~1\Zope225\lib\python\DocumentTemplate\DT_String.py,
   line 528, in __call__
 (Object: index_html)
   File D:\PROGRA~1\Zope225\lib\python\DocumentTemplate\DT_Util.py,
   line 337, in eval
 (Object: _.getattr('AUTHENTICATED_USER', '__class__'))
 (Info: _)
   File string, line 0, in ?
   File D:\PROGRA~1\Zope225\lib\python\DocumentTemplate\DT_Util.py,
   line 144, in careful_getattr
 Unauthorized: __class__
 
 
 So it looks like attempting to access the '__class__' attribute
 triggered this, but I don't understand why it lead to basic
 authentication.  If this required 'Manager' permissions, why didn't I
 just get some kind of "forbidden" response?

You are already authenticated in LM, but don't (can't, acutally) have
the role to do this operation (grep the Zope source for
'_what_not_even_god_should_do').  The LM can't authenticate you for what
you asked, so you bang out to Zope's default, which is to try basic auth.
In this case, it is particularly pointless, as there does not exist *any*
user who can execute your method.
 
 It looks like the careful_getattr() function will raise a
 ValidationError on any attempt to access a variable whose name starts
 with '_'.  Fine, maybe I was being naughty.  But I still don't
 understand why this wasn't handled using LoginManager.  How can I keep
 Basic/HTTP authentication from running when I've got LoginManager in
 place?  Or is there reason to want both at once?

The real problem is that, at the end of the day, Zope is returning
an HTTP 401 for this request, which is the only possible result (it
is your browser who converts that into a dialog box) 

Tres.
-- 
===
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Digital Creations "Zope Dealers"   http://www.zope.org

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Re: [Zope] Did I miss some major change in Z SQL Methods ?

2001-01-28 Thread Fred Yankowski

I missed the original message, but I'm trying to do something similar
-- use Python Methods rather than DTML -- and I found one critical
difference just today.  Here's an example:

I've got an SQL Method called 'select_item' that takes 'item_id' as
its only input parameter.

I've got a DTML Method 'form_action' that has 'item_id' in its
namespace by virtue of being posted from an HTTP form.

When I would invoke the SQL method from DTML I could do just
dtml-call select_item
and the SQL method would get the item_id from the DTML method.

But when using a new 'action_script' Python Method (PythonMethod
0.1.7) I have to pass that item_id explicitly from the DTML
   dtml-call "action_script(item_id)"
and action_script itself has to call the SQL method like so
   self.select_item(item_id=item_id)

I don't know why the explicit parameter passing is needed in the
latter case (DTML to Python Method to SQL Method) but not in the
former (DTML to SQL Method).  I'm sure I'm missing some trick.

In fact, this aspect of Zope -- when values are passed explicitly and
when not -- is a major confusion for me.  (And anyone who responds
about "Zen" deserves to have the size 12 boot applied.)


On Mon, Jan 29, 2001 at 09:28:17AM +1100, Curtis Maloney wrote:
 The SQL Method works fine.  I can easily test that with the 'Test' tab.  
 Really, the only difference now to how I would have previously done this is 
 that I have the python method slicing the result for me.
 
 That being said, I have tried removing that, and going to the Z SQL method 
 directly, and it STILL doesn't work.

-- 
Fred Yankowski   [EMAIL PROTECTED]  tel: +1.630.879.1312
Principal Consultant www.OntoSys.com   fax: +1.630.879.1370
OntoSys, Inc 38W242 Deerpath Rd, Batavia, IL 60510, USA

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Re: [Zope] How can a document know its own URL?

2001-01-28 Thread Joachim Werner

 
 Can anyone tell me how to use DTML to get at the  URL for the document 
 being displayed?
 

dtml-var URL

Sometimes, things can be so easy ;-)

Joachim.




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Re: [Zope] where are the pages stored?

2001-01-28 Thread Horatio B. Bogbindero


   btw, were does zope store the template pages and objects? i tried do look 
   into the folders but i could not seem to find it. is there are a way of
   moving this document root to a different folder? 
 Before Zope 2.3, they were in "lib/python/*/*.dtml".
 Since Zope 2.3, they are in "lib/python/*/dtml/".

thanks for the information. i needed the information because i plan to CVS
that portion of the site. we would not be using the actual web tool for
generating our pages but we will be using vi and company. hehehe. thanks.
 
   also the reason why i have so many questions is because i could not find
   the zope documentation set in the zope source distribution. can someone
   point me out the distribution so that i can read the fine manual(RTFM)
   instead. thanks.
 Click on any "Help" button in the Zope management interface.
 
i use this already, but it is a bit lacking. anyway, i found some good
documentation in http://www.zope.org/Documentation/. 

thanks.

--
William Emmanuel S. Yu
Ateneo Cervini-Eliazo Networks (ACENT)
email  :  [EMAIL PROTECTED]
web:  http://cersa.admu.edu.ph/
phone  :  63(2)4266001-5925/5904
 
... I want FORTY-TWO TRYNEL FLOATATION SYSTEMS installed within
SIX AND A HALF HOURS!!!
 


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Re: [Zope] namespace problems

2001-01-28 Thread Gary Lowder

with your line dropped in,
my python script still gives me:

Error Type: AttributeError
Error Value: RESPONSE

I'm passing variables via a form action...,
how do I let python access that namespace?

Thanks,
Gary.

Chris Withers wrote:
 
  How would I do the URL redirect using an equivalent to the
  dtml-call "RESPONSE.redirect(URL1)"   that's in the DTML Method below?
 
 context.RESPONSE.redirect(URL1)
 
 cheers,
 
 Chris

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[Zope] Core Session

2001-01-28 Thread josh on

Is core session a part 2.3?  
Can someone point me to the documentation on it?

Thanks,

josh on


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Re: [Zope] Python Methods can't construct literal dictionaries?

2001-01-28 Thread Evan Simpson

This is one of the shortcomings of Python Methods that Scripts eliminate.
You can work around it by writing:

x = {}
x.update({y: z})

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Core Session

2001-01-28 Thread Chris McDonough

Hi Josh,

No, the core session tracking product does not ship with
2.3.  But it does work with it.  You can get it from
http://www.zope.org/Members/mcdonc/Products/CoreSessionTracking



On Sun, 28 Jan 2001 17:19:32 -0800
 "josh on" [EMAIL PROTECTED] wrote:
 Is core session a part 2.3?  
 Can someone point me to the documentation on it?
 
 Thanks,
 
 josh on
 
 
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Re: [Zope] Did I miss some major change in Z SQL Methods ?

2001-01-28 Thread Curtis Maloney

On Monday 29 January 2001 10:19, Fred Yankowski wrote:
 I missed the original message, but I'm trying to do something similar
 -- use Python Methods rather than DTML -- and I found one critical
 difference just today.  Here's an example:

 I've got an SQL Method called 'select_item' that takes 'item_id' as
 its only input parameter.

 I've got a DTML Method 'form_action' that has 'item_id' in its
 namespace by virtue of being posted from an HTTP form.

 When I would invoke the SQL method from DTML I could do just
 dtml-call select_item
 and the SQL method would get the item_id from the DTML method.

 But when using a new 'action_script' Python Method (PythonMethod
 0.1.7) I have to pass that item_id explicitly from the DTML
dtml-call "action_script(item_id)"
 and action_script itself has to call the SQL method like so
self.select_item(item_id=item_id)

 I don't know why the explicit parameter passing is needed in the
 latter case (DTML to Python Method to SQL Method) but not in the
 former (DTML to SQL Method).  I'm sure I'm missing some trick.

 In fact, this aspect of Zope -- when values are passed explicitly and
 when not -- is a major confusion for me.  (And anyone who responds
 about "Zen" deserves to have the size 12 boot applied.)


The way it appears to work is this:
DTML will pass it's namespace on implicitly.
Python will not.

The exact details of what are passed are somewhat of a mystery, true.  
Rember, of course that dtml-var "method_name()"  is a Python expression.  
As I understand it, the equivalent of:

dtml-var method_name

as a Python expression is:

dtml-var "method_name(_.None, _)"

When it comes to Python scripts, yes, you must pass all parameters 
explicitly.  IMHO, this is a good thing in many cases, as it forces you to 
make sure you are passing the correct values.  But I can see how implied 
values could make life easier... oh well...

Have a better one,
Curtis Maloney

P.S.  I'm now moving my application to Zope 2.3 in the vague hope that 
PythonScripts will handle this problem better.

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Re: [Zope] subtransactions

2001-01-28 Thread Chris McDonough

Maybe.  I wouldn't bother submitting a patch... we just need
to figure out the "right thing to do".  What you suggest may
be it.

On Sun, 28 Jan 2001 16:34:44 +
 Chris Withers [EMAIL PROTECTED] wrote:
  - Original Message -
  From: "Dieter Maurer" [EMAIL PROTECTED]
   If this is the case, then objects that do not need
   such hackery, simply provide empty "commit_sub" and
   "abort_sub" and do all their work in "commit".
 
 Chris McDonough wrote:
  
  This is about right.
 
 In that case, would putting try: .. except
 AttributeError's around the calls to
 abort_sub and commit_sub in transaction.py be a safe adn
 sensible thing to do?
 
 Should I submit a patch to the collector?
 
 cheers,
 
 Chris


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[Zope] Products and Zope 2.3

2001-01-28 Thread David K. Trudgett

On Sun, Jan 28, 2001 at 09:23:21PM -0500, Chris McDonough wrote:

 
 No, the core session tracking product does not ship with
 2.3.  But it does work with it.  You can get it from
 http://www.zope.org/Members/mcdonc/Products/CoreSessionTracking

This brings up the question: are there any significant products that don't
yet work with Zope 2.3?

David Trudgett


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[Zope] Getting https://..... pages to redirect to Zope

2001-01-28 Thread Deja User

I can't get my buy page to work on Etailer
I'm not sure if it the rewrite rules in apache or the ssl setup.
It seems that the https:// request doesn't get converted to call Zope

When it tries to access 

https://192.168.0.102/Kayak/kl/buy
 from the browser, I get page not found.
The apache error log says "File does not exist: 
/usr/local/httpd/htdocs/Kayak/kl/buy
I can change the Document root section in the ssl virtual host, and
the error remains the same (but the path changes).
The accesslog says
"POST /Kayak/kl/checkOut HTTP/1.1"--- this worked (http)
"POST /Kayak/kl/buy HTTP/1.1" -- this didn't (https)

The end of the httpd.conf file is:
#
RewriteLog "/var/log/httpd/rewrite_log"
RewriteEngine on

RewriteRule ^/static/(.*) /usr/local/httpd/htdocs/$1 [L]
RewriteRule ^/cgi-bin/(.*)  /usr/local/httpd/cgi-bin/$1 \
  [e=HTTP_CGI_AUTHORIZATION:%1,t=application/x-httpd-cgi,L]

RewriteCond %{HTTP:Authorization}  ^(.*)
RewriteRule ^/(.*) /usr/local/httpd/zope-cgi-bin/Zope.cgi/$1 \
  [e=HTTP_CGI_AUTHORIZATION:%1,t=application/x-httpd-cgi,L]
#-

Interestingly when I access https://192.168.0.102/
I get the old static web pages, so I think the rewrite rule isn't hitting the https 
accesses.
When I access http://192.168.0.102/ I get the Zope welcome screen








--== Sent via Deja.com ==--
http://www.deja.com/



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[Zope] ANNOUNCE: please have a look at ZDatabaseTool

2001-01-28 Thread Andreas Heckel

We at easyleading.org are pleased to announce a new Zope Product.

ZDatabaseTool provides a set of wizards to let you manage databases 
more comfortable. At the moment PostgreSQL is supported. The code is not
yet 
released but I want you to have a look at the screen shots and the
online demo.

http://www.zope.org/Members/aeg/ZDatabaseTool 

-- 

Andreas Heckel   [EMAIL PROTECTED]

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