Re: [Zope] SiteAccess smashes 'REQUEST.resolve_url(...)' in DTML ?

2000-05-19 Thread Evan Simpson

- Original Message -
From: Martin Grönemeyer [EMAIL PROTECTED]
 dtml-with "REQUEST.resolve_url('http://mydomain/home/index_html')"
 dtml-var title
 /dtml-with

 throws

 Error Type: ValueError
 Error Value: Different namespace.

REQUEST.resolve_url requires that the URL you pass to it begins with
REQUEST.script, otherwise it will throw this Exception.  It treats the URL
very much like one coming from a browser, so all SiteRoots and Access Rules
affect the result.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] manage_users problem

2000-05-23 Thread Evan Simpson

- Original Message - 
From: Steve Drees [EMAIL PROTECTED]
 I have the following code stuffed away in a DTML Method
 
 dtml-call "REQUEST.set('name','steve3')"
 dtml-call "REQUEST.set('password','test')"
 dtml-call "REQUEST.set('confirm','test')"
 dtml-call "REQUEST.set('roles','RegisteredUser')"
 dtml-call "acl_users.manage_users('Add',REQUEST,RESPONSE)"

Roles is supposed to be a list.  Try:

dtml-call "REQUEST.set('roles',['RegisteredUser'])"

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Moving the html_standard_header in an another folder...

2000-05-25 Thread Evan Simpson

- Original Message -
From: Dan Rusch [EMAIL PROTECTED]


 Try this !--#var "Models.standard_html_header(_.None,_)"--

One important caveat to keep in mind here:  If standard_html_header acquires
any object or property that is meant to be context-sensitive (eg. it is
defined in the root, overridden in some folders, and overridden again in
some documents), then placing it in "Models" can have surprising effects.
These can sometimes be fixed by using "this()" instead of "_.None" in the
call.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] fmt weirdness

2000-06-06 Thread Evan Simpson

- Original Message -
From: Chris Withers [EMAIL PROTECTED]
 dtml-var "_.DateTime()" fmt="%d %B %Y"

 ...works fine

 dtml-var "_.DateTime()" fmt='%d %B %Y'

 ...barfs with a 'Document Template Parse Error':

The dtml parser only likes double-quoted attribute values. It sees the above
as having attributes "fmt='%d", "%B", and "%Y'".

Cheers,

Evan @ digicool  4-am


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Re: [Zope] How to catch URL in DTMLDocuments/Methods

2000-06-07 Thread Evan Simpson

- Original Message -
From: Ian Sparks [EMAIL PROTECTED]
 The conceptual problem I have is that DTMLMethods/Documents don't have a
 parameters tag like SQLMethods do, so I don't see how I can "trap" parts
of
 the URL like SQLMethods do and use them internally in my Method/Document.

There isn't an automatic way to do this; SQLMethods are specially written to
be traversable.  There are three (fairly complex) ways to do this that I can
think of:

1.  Subclass DTMLDocument and mix in the class SQLMethods use for
traversability.  Probably hard.

2.  Use a PythonMethod, and make one of its parameters 'traverse_subpath'.
Then you can traverse through this PythonMethod and use the parameter to do
what you want.  Not bad, but you need to know PythonMethods.

3.  Use a SiteAccess Access Rule on the folder, having it check to see if
the next object to be traversed is your DTMLMethod.  If so (and if the next
name doesn't start with 'manage'!) remove the rest of the traversal path and
store it in a REQUEST variable.  Not too bad, but SiteAccess is fragile (it
doesn't work with Zope 2.2a).

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Property Question

2000-06-12 Thread Evan Simpson

- Original Message -
From: Tom Scheidt [EMAIL PROTECTED]
 result = []
 for item in self.objectValues( [ 'DTML Document' ] ):
 if item.hasProperty( 'publish' ):
 (and if there is something entered in the 'publish' field)
result.append( item )
 return result

If you just meant, is the value of the 'publish' property is "true"
(nonblank string, nonzero int, etc.) then you want:

result = []
for item in self.objectValues( [ 'DTML Document' ] ):
if item.hasProperty( 'publish' ) and item.publish:
   result.append( item )
return result

Cheers,

Evan @ digicool  4-am



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Re: [Zope] Virtual hosts: How to make proper intra-site URL's?

2000-06-15 Thread Evan Simpson

- Original Message -
From: Rob W. W. Hooft [EMAIL PROTECTED]
 I have set up a site:

www.site

 In this site, there are a few virtual hosts:

www.host1  -- www.site/Host1
www.host2  -- www.site/Host2

 Thanks to a nice access rule, both the left and right names can be
 used to refer to the information. So far so good.

You mention an Access Rule, but do you have SiteRoots in the Host1 and Host2
folders?

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Containment or context

2000-06-15 Thread Evan Simpson

I have paraphrased your example at
http://www.zope.org/Wikis/zope-dev/AcquisitionFeedback

We are considering providing some way for you to acquire properties in the
way you expected.  You can read more about this in the pages connected to
the AcquisitionFeedback page.

- Original Message -
From: Stephen Harrison [EMAIL PROTECTED]
[snip]
 http://www.zope.org/Members/Hoekstra/ChangingContexts1

 it states that PARENTS is defined as the acquisition parents of an
 object.  But this is not true.

PARENTS is the list of objects traversed to get to the *published* object.
If you visit "/foo/bar/foo/bar/baz", then PARENTS will contain [bar, foo,
bar, foo, /].  If baz calls another method, PARENTS is unaffected, as are
the URLn and BASEn variables.  Only absolute_url() is affected.

The only way (right now) to search for a property in the order PARENTS
mentions them is to do so explicitly, by looping through the elements of
PARENTS and checking their 'aq_explicit' for the property.  Example Python
snippet:

for p in REQUEST['PARENTS']:
if hasattr(p.aq_explicit, propname):
return getattr(p, propname)
raise AttributeError, propname

Cheers,

Evan @ digicool  4-am


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[Zope] SiteAccess 2.0.0b1 released

2000-06-16 Thread Evan Simpson

Finally, SiteAccess 2 for use with Zope 2.2b1 and up is ready.

http://www.zope.org/Members/4am/SiteAccess2

Cheers,

Evan @ digicool  4-am


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Re: [Zope] From where does nothing spring from?

2000-06-17 Thread Evan Simpson

- Original Message -
From: "Graham Chiu" [EMAIL PROTECTED]
 dtml-var "REQUEST.set('error',f_Email.isNotEmail(f_Email,_))"

 where f_Email is an instance of the product, then the words

 'None'

 are returned as well, and render to the screen.

REQUEST.set returns None.  You want to use dtml-call instead of
dtml-var, to ignore the returned value.

Cheers,

Evan @ 4-am  digicool


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[Zope] SiteAccess 2.0.0 beta 2

2000-06-19 Thread Evan Simpson

Jacques A . Vidrine discovered a chunk of code I accidentally left where it
didn't belong, which messed up the adding of SiteRoots.  I've uploaded
v2.0.0b2 to zope.org, but if you've already downloaded beta 1, you can fix
your installation by just editing SiteRoot.py and deleting the lines of
method manage_afterAdd after the call to
BeforeTraverse.registerBeforeTraverse.  Then you can either delete and
re-add the SiteRoots, or run the upgrade script again.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] scared

2000-06-20 Thread Evan Simpson

- Original Message -
From: josh on [EMAIL PROTECTED]
 I have reinstalled zope and zodb, and copied the data.fs across.  It was
 about two days old.  All the changes that I had made were gone.  Luckily I
 made a backup of my app yesterday by exporting it.

 I must have a bad understanding of how this works.  I had imagined that
 everytime I hit CHANGE, that the data.fs file would have been updated.

That is how it is supposed to work, yes.  If the data really isn't in your
Data.fs (as opposed to being there, but inaccessible somehow) then that's a
serious Zope bug.  This may sound stupid, but have you tried using a
different browser or aggressively clearing the cache on your current
browser?  Sometimes a browser has handed me a days-old folder contents view
from its cache, but refreshing fixes it.

 When the computer crashed where were all my current changes?  Is there a
 temp file I might be able to recover, as I am still missing quite a few
 hours work!

You should take another copy of your original Data.fs and run Tranalyzer on
it (http://www.zope.org/Members/tsarna/Tranalyzer) for clues as to what's
really in it.  If it shows no transactions more recent than the two-days old
ones, let us know.

 The lesson that I have learnt is to back up regularly by exporting.  Is
this
 the right conclusion?

Backups are never a bad idea.  You shouldn't have to export, though;
copying Data.fs, even while the system is running, should give you a good
backup.

Cheers,

Evan @ digicool  4-am


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[Zope] Re: [Zope-dev] SiteAccess in 2.0.0b2?

2000-06-23 Thread Evan Simpson

- Original Message -
From: T.J. Mannos [EMAIL PROTECTED]


 I'm having trouble getting SiteAccess 2.0.0b2 to work with Zope 2.2.0b2.
 The first odd thing that happens is when I create a new SiteRoot, it says
 that this object already has a SiteRoot (which it doesn't), but creates it
 anyway.  The second is: it doesn't seem to work at all!  The value of URL1
 still has the :9080 port and the wrong virtual server.  Any ideas?

What's your platform (win, linux, *bsd)?  Is this a Zope database which has
been upgraded from an earlier version of Zope?  If so, were you using
SiteAccess 1.x with that earlier version?

Cheers,

Evan @ digicool  4-am



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Re: [Zope] ZODB performance: reads to writes

2000-06-24 Thread Evan Simpson

- Original Message -
From: Jimmie Houchin [EMAIL PROTECTED]

 Will an app as described above still suffer from problems with high
writes?

Possibly, but only if there are hidden hotspots.  For example, in your
message-appending scenario, are these messages being added to the same
Folder?  If so, the Folder is getting written with each object added to it,
and will be a source of conflict.  If the objects that your users are
editing are cataloged, the Catalog is a hotspot.

There are two independent attacks on this problem underway:

1. Make Folders and Catalogs store meta-data about their contents in a data
structure consisting of small persistent objects, like B-Tree nodes.  This
reduces the scope of potential conflict (and the size of the update required
by a write) to the size of one of these nodes.

2. Implement the application-level conflict handling you read about, so that
Folders and Catalogs can decide that two writes don't conflict after all,
and merge them into a single update.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] ZODB performance: reads to writes

2000-06-26 Thread Evan Simpson

- Original Message - 
From: Jimmie Houchin [EMAIL PROTECTED]

 This is what I understand based on your reply and from the paper by Jim.
 
 1. That there are solutions currently being worked on by DC (implied).
Yes, worked on does not mean 'Coming Soon to a Zope near You!' :)
 
 2. That if an app, either by it's nature or thru it's developers design,
 eliminates or handles conflicts before commits are made to the ZODB,
 that high write situations are not a problem.

AFAIK, these are both correct.

 Is number 1. below something that would take place with BTree Folders?

Yes.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Adding Products Breaking Zope

2000-06-28 Thread Evan Simpson

- Original Message -
From: Oleg Broytmann [EMAIL PROTECTED]
  My problem is with SiteAccess 1.0.1 with Zope 2.1.6 on Debian Unstable
  (Woody). Is it simply that this version of SiteAccess was written for an
  earlier version of Zope and is no longer compatible? Or am I just doing
  something wrong?

Yes. Downgrading to 2.1.4 will help.

SiteAccess 1.0.1 is meant to work with Zope 2.1.6 (and does, for me).  I'd
like to get it working for you folks, as well.  Does a fresh, empty install
of Zope w/SiteAccess on your respective platforms have this problem?

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Accessing .gif on disk with Python Product?

2000-08-07 Thread Evan Simpson

From: Martijn Pieters [EMAIL PROTECTED]
 misc_ is a root level object. Using absolute_url you are acquiring it into
 your Instance URL, which is not necessary (and will hamper off-server
 caching). Use dtml-SCRIPT_NAME; instead (which will give you the absolute
url
 of the root object in all cases):

   img src="dtml-SCRIPT_URL;/misc_/myProduct/chooserIcon" border=0

I sugget using "dtml-BASE1;", since SCRIPT_NAME doesn't work well with
virtual hosting.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Accessing .gif on disk with Python Product?

2000-08-08 Thread Evan Simpson

From: Martijn Pieters [EMAIL PROTECTED]
 I still think something else was broken, SiteAccess should (and does, as
far
 as I know) stay away from SCRIPT_NAME.

Yep.  Environment/CGI variables are left alone by the virtual hosting
machinery; only Zope-specific ones are altered.

An example of a virtual hosting setup which won't work with SCRIPT_NAME:
Apache on machine www.foo.com proxies requests for /Zope/* to machine
z.foo.com:8080.  In this case SCRIPT_NAME is blank, and the src of an image
on http://www.foo.com/Zope/page constructed with it would resolve to
http://www.foo.com/image.gif, rather than http://www.foo.com/Zope/image.gif.
This is not a contrived example -- people are doing this.

SCRIPT_NAME will work in simple cases, but BASE1 ought to work in all cases,
and using it is a better habit to have in general.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Accessing .gif on disk with Python Product?

2000-08-08 Thread Evan Simpson

From: Martijn Pieters [EMAIL PROTECTED]
  SCRIPT_NAME will work in simple cases, but BASE1 ought to work in all
cases,
  and using it is a better habit to have in general.

 We better file a Collector item on this then, as the current Zope
Management
 Interface uses it still.

Done.  I also tacked on a proposal to add BASE_PATHn and URL_PATHn variables
to ease the transition.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] JavaScript help!

2000-08-13 Thread Evan Simpson

 function changeChars() {
  var box = eval("document.manage_edit_form.data:text");

This should be:

var box = document.manage_edit_form['data:text'];

JavaScript, like DTML, lets you access objects with funny names using
subscript notation.

Cheers,

Evan @ 4-am  digicool


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Re: [Zope] How To Shoot Yourself In The Foot With Zope

2000-08-19 Thread Evan Simpson

From: "Jean Jordaan" [EMAIL PROTECTED]
 In order to get more debugging info about the environment
 I'm working in, I included 'dtml-var REQUEST' in my
 'standard_html_footer'. This worked so nicely, I added
 'dtml-var RESPONSE' too, arguing that the REQUEST is
 probably only half the story. However, adding 'dtml-var
 RESPONSE' turned out to be pretty stupid, since it caused
 some kind of recursion (the response contains the response?)
 which had Zope taking up 99% of CPU and rendering *nothing*.

Bad idea, as you discovered.  REQUEST is designed to render itself and
provide all sorts of useful information.  RESPONSE is designed to accept and
control output. Attempting to render it makes it try to return the final
page text.  I can't tell you exactly what's going on internally to make Zope
unhappy, but I *can* say "don't do that".

Cheers,

Evan @ 4-am  digicool


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Re: [Zope] Odd problems with SiteAccess?

2000-08-19 Thread Evan Simpson

From: "Christopher Heschong" [EMAIL PROTECTED]


 I have a directory with a SiteAccess rule in it.  Under that directory,
 versions and Zcatalogs no longer seem to work.

Does your rule manipulate the traversal path?  Versions and ZCatalogs have
an unfortunate dependency (which needs to be removed) on the path through
which they are accessed.

Cheers,

Evan @ 4-am  digicool


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Re: [Zope] base instead of SiteAccess

2000-08-22 Thread Evan Simpson

From: "George Osvald" [EMAIL PROTECTED]


 I am using ProxyPass configuration with Apache and SiteAccess.
[snip]
 The subdirectory of my web site is 'okstudio'.
[snip]
 I was trying to use SiteAccess on my home machine
 but could not get it working. It would not work for http://localhost or
 http://localhost:8080 ..and so and so.

I'm going to guess at your configuration; please correct me where I miss:

1. Apache with "ProxyPass / http://localhost:8080/okstudio "

2. SiteRoot in "/okstudio" with Base == "http://www.okstudio.com" and Path
== "/"

You want to be able to run a copy at home, connect directly to Zope, and
browse the site.

At home, set the Base=="" and add the following Access Rule in your root:

dtml-let path="REQUEST.path"
dtml-unless expr="path and path[-1] == 'okstudio' "
dtml-call expr="path.append('okstudio')"
/dtml-unless
/dtml-let

This way, requests to http://localhost:8080 will get rewritten to
http://localhost:8080/okstudio without affecting URLs (thanks to the
Path=="/" in the SiteRoot).

Cheers,

Evan @ 4-am  digicool


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Re: [Zope] Problem with SiteAccess 1.0.1

2000-08-28 Thread Evan Simpson

From: William JOYE [EMAIL PROTECTED]
 I have some minor problems with SiteAccess 1.0.1 and Zope 2.1.6 + hotfix.

 1. When click on the folder that contain SiteRoot, I need to enter again
 login and password. Why ?

Most likely, because you have a Base set in your SiteRoot that differs from
the base URL you had logged into.  Your browser will not send your
authentication information to a URL with a different host name.

 2. When I delete an object, I have always an script error message. Why ?

Sorry, you'll need to be more specific.  When you delete an object inside
the SiteRooted folder, or anywhere?  What error message? (traceback too,
please)

 Are these problems already fixed ? Is the SiteAccess 1.0.1 product stable
 enough to use it in production ?

It runs all of my domains, and those of a fair number of other people.
YMMV.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] SiteAccess 2.0b3 missing setURL?

2000-08-28 Thread Evan Simpson

From: "albert boulanger" [EMAIL PROTECTED]
 An oversight or is there a change in API?

Change in API; You want REQUEST.setServerURL, which is documented here:
http://www.zope.org/Members/michel/Projects/Interfaces/ImplementingVirtualHo
sts

Cheers,

Evan @ 4-am  digicool


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Re: [Zope] Silly string question

2000-09-01 Thread Evan Simpson

From: Satheesh Babu [EMAIL PROTECTED]
 I want to print the following line exactly as it
 appears on a web page (no HTML coding).
  !--#include file="header.inc" --

These aren't general solutions, but off the top of my head (tested):

dtml-var expr=" '' "!--#include file="header.inc" --

dtml.missing--;!--#include file="header.inc" --

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Re: superuser confusion

2000-09-05 Thread Evan Simpson

From: "Chris McDonough" [EMAIL PROTECTED]
 On Mon, 4 Sep 2000, Chris Withers wrote:
  Well, okay, let me rephrase the question:
  Why is it bad for the bootstrap user to own anything?
  It used to be considered okay before Zope 2.2, so was has been
  changed/discovered that makes this now such a bad idea that despite
  loads of newbie pain and confusion, it's still worth while/necessary?

 I've got to say I agree with you here.  I'm still not 100% sure why the
 superuser or bootstrap user can't own anything.

It's due to a combination of the trojan horse issue and the sticky
authentication issue, I think.  You really don't want to be authenticated as
super very often, because while you are, if you visit a page someone else
wrote, they can make your browser do evil things to your site.  This is also
true of Managers, but less so.  Similarly, a page owned by non-super has
tighter permissions than one owned by the super would.

Ideally, people working in a site should be operating with the bare minimum
of privileges to get the job done.  The super should only be called in when
no one else can fix it.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] That :method thingy.. where's it documented?

2000-09-05 Thread Evan Simpson

From: Brad Clements [EMAIL PROTECTED]
 Thanks but that's not really what I'm looking for.

 I thought there was a type ":method" that could be used as a way to
 call a method..

 Perhaps I'm just going crazy.

No, you're right, and the page Rik referenced really should be updated to
include it.  If "foo:method" is included in a form (usually by making it the
name of a submit button, or an option in a pick list) then "foo" is
effectively added to the end of the URL path. There is also
":default_method", the value of which is used if no ":method" is specified.
So:

form action="act"
  input type="text" name="foo"
  input type="hidden" name=":default_method" value="def"
  input type="submit" name="m1:method" value="1"
  input type="submit" name="m2:method" value="2"
/form

...will invoke "act/m1" or "act/m2" depending on whether you push button "1"
or "2", or "act/def" if you push the enter key (thereby submitting the form
without pressing either button).

Cheers,

Evan @ digicool  4-am


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Re: [Zope] re module through the web security

2000-09-06 Thread Evan Simpson

From: Chris Withers [EMAIL PROTECTED]
 One of Zope's key strengths is its granular security, right?
 So why isn't it the reponsibility of the site
 designer/maintainer/owner/whatever to ensure that only people he trusts
 have the ability to write DTML?

Fear not.  In the brand new shiny PythonMethods Product coming soon
(really!) to a Zope near you, you will have the ability to say:

ModuleSecurityInfo('re').protect('compile', 'Use the "re" module')

...and suddenly anyone to whom you grant 'Use the "re" module' permission
will be able to 'from re import compile' in their Python Methods.  Anyone
else will be able to 'import re', but not access any of its contents.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] re module through the web security

2000-09-07 Thread Evan Simpson

From: Dan L. Pierson [EMAIL PROTECTED]
   http://dev.zope.org/Wikis/DevSite/Projects/PythonMethods/GuardedImport

 I looked there.

Ah, but I was sneaky and went and updated it just before posting ;-)  You do
have to follow a link or two, but it isn't hard to find (any more).

Cheers,

Evan @ digicool  4-am


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[Zope] Call for Python Method opinions

2000-09-07 Thread Evan Simpson

If you want any say in how official Zope Python Methods work, I recommend
heading over to:

http://dev.zope.org/Wikis/DevSite/Projects/PythonMethods/StandardPythonMetho
dModule

...soonest.  If you have feedback on any part of the project, please
contribute, but the link above is the squishiest part of the design, and
possibly the most important to many of you.

User-style documentation is still scanty, but getting better.  Comments on
where it needs to be stronger are welcome.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] SiteRoot (SiteAccess) problem

2000-09-08 Thread Evan Simpson

From: Joshua Brauer [EMAIL PROTECTED]


 I'm running a new server with 2.2.1 and Siteaccess 2.0.0 b3 and I don't
get a "SiteRoot" item in the available items list. I can copy site roots and
move them, but I cannot create new site roots... After reinstalling
SiteAccess ( restarting) I still have problems. Any ideas?

Err... if you delete the SiteAccess Product object (not the directory!) from
Control Panel/Products and restart, does it come back unbroken?  Do the
existing SiteRoots do their jobs?

 General Info:

 * Zope version: Zope 2.2.1 (binary release, python 1.5.2, linux2-x86)
 * Python version: 1.5.2 (#1, Feb 1 2000, 16:32:16) [GCC egcs-2.91.66
19990314/Linux (egcs-
 * System Platform: linux-i386

 Installed Products:
[snip list of every Zope Product ever made, practically]

I ... wow.

Speechless,

Evan @ digicool  4-am


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[Zope] Re: Set Access Rule wish

2000-09-08 Thread Evan Simpson

From: Albert Boulanger [EMAIL PROTECTED]
 Its nice that the icon for the  method, who is the access rule's target,
 is changed.
 However, I think also there needs to be some indicator on the folder
 involved as well.

Unfortunately, the rule icon is already a fragile hack.  If you copy,
rename, export, or otherwise move an Access Rule, it ceases to be an active
rule, but the icon doesn't go away.  The only thing which gets rid of it is
using Set Access Rule to turn it off.

I'd like to come up with something more robust; I'm open to implementation
suggestions.  Keep in mind that the container and object involved don't know
anything about Access Rules.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] 'showREQUEST' or 'show_REQUEST' ?

2000-09-11 Thread Evan Simpson

From: Steve Alexander [EMAIL PROTECTED]
 I get an error when I try to add a DTML Method with REQUEST anywhere in
 the id.

This is fruit of a needlessly broad restriction on REQUEST traversal, and is
fixed in CVS.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] How to Pass values to a DTML method ??

2000-09-12 Thread Evan Simpson

 Dieter Maurer
 You should include two positional parameters as well:

 dtml-var "some_method(_.None,_,param=value)"

I've recently had explained to me a way that is more robust, and possibly
less confusing, than this idiotic idiom.  I think it may start appearing in
docs and training.

dtml-let param="value"dtml-var some_method/dtml-let

...or even better...

dtml-let param="value"dtml.-some_method;/dtml-let

...which allows nicely for stuff like:

dtml-let foo="sequence-item" bar="foo.objectIds()" firstbar="bar[0]"
a href="dtml-firstbar;"First!/a
/dtml-let

Cheers,

Evan @ digicool  4-am


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Re: [Zope] [zwiki] What is the 'Wiki-Safetybelt'?

2000-09-12 Thread Evan Simpson

From: "Jean Jordaan" [EMAIL PROTECTED]
   Wiki-Safetybelt: 968246577.617

 What is is, and do I need to keep it if I want to ftp them
 back in?

It's a weak protection for when two people grab a copy of a wiki page, edit
it, then post their conflicting changed pages.  When the second person
posts, Zope will notice that their Wiki-Safetybelt doesn't match the
timestamp of the page, warn them that it has changed, and refuse their
update.

Removing the Safetybelt will eliminate this check, IIRC, and should work
fine.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] How to Pass values to a DTML method ??

2000-09-12 Thread Evan Simpson

From: Stuart Foster [EMAIL PROTECTED]
 The first example is what I was doing. But felt it was hard to follow.
 However I would be interested in why it would be considered more robust.

I probably misused the word; what I meant was that the dtml-let form is
less likely to have errors like forgetting the first two "magic" parameters
or writing "sequence-item" instead of "_['sequence-item']", and can take
advantage of current dtml-let features such as cascading assignment
(foo=1, bar=foo+1, etc) and future ones such as extended-attribute syntax
(foo-name-name="x" instead of foo="_[_[x]]").

I have considered proposing that we graft dtml-let's capabilities onto the
other tags, so that we could write stuff like:

dtml-var set-foo="getFoo()" var=foo set-param1=" 'text' " set-param2="id"

...or...

dtml-in in="seq" set-seqKey=sequence-key set-letter="seqKey[0]"
   dtml-letter;
/dtml-in

Cheers,

Evan @ digicool  4-am


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Re: [Zope] zope 2.2.1 and python 1.6

2000-09-13 Thread Evan Simpson

From: Nils Kassube [EMAIL PROTECTED]
 According to Guido van Rossum in

 http://linuxtoday.com/news_story.php3?ltsn=2000-09-07-011-21-OS-CY-SW

 you are not able to use GPL'ed Zope products with Python 1.6
 (or 2.0) until the dispute is settled.

No copyright-based licence whatsoever, including but not limited to the GPL, ZPL, and 
the licence on
Microsoft Word, can ever prevent you from *using* any software you like, in any 
combination.

They can only constrain *distribution* of that software and derived works.  This is a 
serious
problem for software authors, but not for people running Zope-based sites.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] trouble with SiteAccess; can't manage subtree mapped to inaccessible domain name

2000-09-23 Thread Evan Simpson

From: "Fred Yankowski" [EMAIL PROTECTED]
 How do I get out of this jam?  I tried deleting the
 Products/SiteAccess folder, restarting Zope, and deleting the
 SiteAccess product from the Control_Panel/Products view, but now I'm
 getting an AttributeError when I try to access the subtree that has a
 SiteAccess object.  Since I can't get to that tree, I can't figure out
 how to delete that object.  Is there some way to delete it by name
 from a higher point in the tree?

Yow! No need for such extreme measures.  Put SiteAccess back, then open the
management interface for the subtree folder in your Zope, using:

http://your.zope/the-subtree/_SUPPRESS_SITEROOT/manage_main

...and delete the SiteRoot.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] SiteAccess2 problem

2000-10-03 Thread Evan Simpson

From: Oliver Wrede [EMAIL PROTECTED]
 I am trying to use SiteAccess2 with a site which has imported 
 SiteAccess1 objects.

Have you used Extensions/updata.py to upgrade these objects?

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Zope with Apache

2000-10-06 Thread Evan Simpson

From: James Howe [EMAIL PROTECTED]
 We are running Zope behind an Apache server. We've got things configured so
 that it mostly works. However, we noticed that the "breadcrumbs" list at
 the top of a workspace screen doesn't work correctly.

This was broken with respect to virtual hosting, as well, and the fix for that in the 
CVS trunk may
also take care of what you're seeing.  Should be in Zope 2.3 (soon, I hope).

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Black Magic

2000-10-10 Thread Evan Simpson

From: Chris Withers [EMAIL PROTECTED]
 Pierre-Julien Grizel wrote:
  It seems that in fact the DTML document doesn't actually pass _.None and
  _ to my object. WHY ??

 This is deep voodoo that I don't fully understand. To me, it appears
 that what you get depends on how your __call__ was called...

 The arguments vary dependign on whether:
 -you were called from a bit of DTML
 -traversed directly through a URL
 -called from soem python you wrote

Here's the scoop:

1. DTML Methods' __call__ signature is (client=None, REQUEST={}, RESPONSE=None, **kw). 
 The client,
REQUEST, and keyword arguments are layered to form the namespace for the Method, with 
the keywords
on top, then the client, then REQUEST.

2. If you call a DTML Method in a Python expression, its namespace will be empty 
unless you
explicitly pass a client, REQUEST, and/or keyword arguments.

3. URL traversal automatically tries to look up parameter names in the REQUEST.  Both 
REQUEST and
RESPONSE are found in REQUEST, so they are passed to the Method.

4. When an object is named in the name attribute of a DTML tag, the DTML code checks 
to see whether
the object is callable and has a true attribute called "isDocTemp".  If so, it passes 
the namespace
to the REQUEST parameter.  Otherwise, if the object is callable it calls it with no 
arguments.
Thus, to simulate dtml-var foo in Python code, including DTML expressions, you must 
either use
"obj(_.None, _)" or "obj(REQUEST=_)".

Cheers,

Evan @ digicool  4-am


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Re: [Zope] REQUEST.set size

2000-10-10 Thread Evan Simpson

From: Paul Zwarts [EMAIL PROTECTED]
 ValueError: PQsendQuery() -- query is too long.  Maximum length is 16382

This is purely a PostgreSQL issue; Some (all? not sure.) versions of PostgreSQL have a 
hard limit on
the length of query strings.  You have to break your query into multiple smaller 
queries.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Black Magic

2000-10-10 Thread Evan Simpson

From: Fred Yankowski [EMAIL PROTECTED]
 The information you just provided about the DTML Method "call
 signature" and the like is very useful.  Is this kind of reference
 material written down somewhere in a guide/how-to/wiki/...?

The only thing I could find offhand is
http://www.zope.org//Wikis/DevSite/Projects/PythonMethods/NamespaceObjectInterface, 
which I wrote.
I don't know if ZDP or someone else has documented it.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Easiest way to turn X-Forwarded-For to Remote-IP?

2000-10-12 Thread Evan Simpson

From: Marcin Kasperski [EMAIL PROTECTED]
X-Forwarded-For header (REQUEST['HTTP_X_FORWARDED_FOR']).
 Does there exist some sample of such usage? Can such a change be
 performed before authorization?

You could do this with an Access Rule in your root folder, containing:

dtml-call expr="REQUEST.set('REMOTE_ADDR', REQUEST['HTTP_X_FORWARDED_FOR'])"

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Zope Apache/ProxyPass : environment variables

2000-10-31 Thread Evan Simpson

From: Aaron Straup Cope [EMAIL PROTECTED]
 Thanks. It appears, though, that there is no way to do this without
 appending a query string to the redirected URL. Is this correct?

That, or mangling the URL in some way and then unmangling on the Zope end.  If someone 
out there has
any experience with Apache modules, they could earn the undying gratitude of many 
Zopistas by
enhancing mod_forwarding to do this sort of thing.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] ZMethod (Safe)

2000-11-08 Thread Evan Simpson

From: Chris Withers [EMAIL PROTECTED]
 [EMAIL PROTECTED] wrote:
 
  Now, how about internal/external?

 Safe and Flexible are probably more meaningful words there ;-)

 ZMethod is growing though ;-)

We've pretty much settled on restricted/unrestricted here.  In honor of the 
presidential Indecision
2000 race, we're seriously thinking about revamping and rerunning the poll, so ZMethod 
may well get
its moment in the spotlight.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] ZMethod (Safe)

2000-11-08 Thread Evan Simpson

From: Jason Cunliffe [EMAIL PROTECTED]
 Good news: 'ZMethod' is nice and 'sounds' good, however one says it.

I agree, but then everyone around here thought that Zopelet was fairly 
unobjectionable, even though
nobody really *liked* it.

 1. 'closed' / 'open'
 2. 'builtin' / 'custom'
 3. 'local' / 'custom'
 4. 'client-side' /  'server-side'

None of these characterize the fundamental difference between the two things.   One 
applies security
restrictions, the other doesn't.  Other differences, such as web-editable/zodb-stored 
vs.
filesystem-based are not fundamental.  We are contemplating unrestricted code which 
would be stored
in the zodb, and possibly remote-editable through a secure interface.

From: [EMAIL PROTECTED]
 Presumably the focus here is on newbies, not security managers.
 No newbie will ever want to use a Restricted Python ZMethod.
 What newbie wants to be limited/strait-jacketed/'kept from the cool stuff'?

 You are propsing a word with negative conotation for something that should
 be prefered!  Yes, it is accurate, but that is beside the point.

The two varieties aren't competing, and we aren't trying to promote one over the 
other.  If a newbie
is willing to put up with the risks and awkwardness of the current unrestricted design 
simply
because they sound "cooler", we don't need to stop them.  The documentation will 
present the
restricted type first and tout their advantages, but explain clearly when and why you 
would want to
go to the trouble of going unrestricted.

 Moreover, this also fails the concise/'easy to say' test that was
 used to kick out several other meritorius naming suggestions.
 Unrestricted Python ZMethod (8 syllables, 26 letters) is a
 mouthful!

True (although some of the alternatives base names were worse).  Considering that 
there aren't (yet)
other language variants, and that I would usually use the restricted kind, I would 
normally just say
"ZMethod".  Only if there were some potential confusion would I say "Unrestricted 
zmethod", or the
full title.


Cheers,

Evan @ digicool  4-am


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Re: [Zope] ZMethod (Safe)

2000-11-09 Thread Evan Simpson

From: Ron Bickers [EMAIL PROTECTED]
 Since you would normally *say* just ZMethod, I like the suggestion of using
 "Python ZMethod" and "Python ZMethod (Unrestricted)", vs. spelling out the
 (Restricted) in the first one.

Good point.  I'll shop this around and see what folks here think.

Cheers,

Evan @ digicool  4-am


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[Zope] Python Script demo site

2000-11-22 Thread Evan Simpson

A few announcements.  First, in the interests of sanity and
getting things moving, I'm choosing the only name other than
"Python Method" to get a positive score in the naming poll.
I like it, Guido likes it, the community sort of likes it,
so it's official.  Zope 2.3 will introduce "Python Script"
objects.

There will be no "Unrestricted" vs. "Restricted".  If you
want to write unrestricted code, you can use a good old
External Method, or write a small module and import it in a
Script object.

Finally, if you want to give Python Scripts a try, you can
now play with them without any CVS, installation, or Zope
version worries.  Go to http://ps.4-am.com:9000/ , pick a
password, and you'll get your own private area in a trunk
CVS checkout of Zope in which to play.

I plan to add example Scripts, but for now there's just the
raw Zope management interface.  When I add examples, I'll
announce it here on the Zope list.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Python Script demo site

2000-11-26 Thread Evan Simpson

From: "Steinar Rune Eriksen" [EMAIL PROTECTED]
 Would it be useful to (or rather, is it possible to) let one of these
 scripts call up another one ?

Sure.  From one of the Python Scripts you just write something like:

answer = context.otherscript(1.3, 'foo')

...where context is bound to the Script context, and "otherscript" is the
name of the other script.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Python Script comments

2000-11-26 Thread Evan Simpson

From: "Chris Withers" [EMAIL PROTECTED]
 Is there going to be a python methdos help tab eventually?

Help is on the way.

 If I specify parameters 'wibble, fish', and then do:

 dtml-var "mypythonmethod('wibble',1)"

 ...will wibble='wibble' and fish=1 in the method?

Yep.  Parameters work normally.

 Will the bound names still be bound to what they would have been, had I
 just done dtml-var mypythonmethod ?

 Likewise, if I do:
 dtml-let wibble='wibble', fish="1"
 dtml-var mypthonmethod
 /dtml-let

This is tied up in whether you bind the "caller's namespace" in the Bindings
tab.  If you do, then calling by name, as above, will automatically look the
parameters up in the namespace, so your example will work.  If you don't
bind the namespace (it isn't bound by default) you can only call by name if
there are no parameters.

Go to the demo site -- try it out!

 Finally, I'm not sure, from a user confusion point of view that allowing
 bound names to also appear in the parameter list is a good idea...

They shouldn't, you're right. I'll take care of that soon.

Cheers,

Evan @ digicool


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Re: [Zope] How to checkout PythonMethod from CVS

2000-11-26 Thread Evan Simpson

From: "Jochen Knuth" [EMAIL PROTECTED]
 Products/DC/PythonMethod

 at the moment, i don't know if the new name will result in a new
directory.

I expect to check it into the Zope2 core trunk under
lib/python/Products/PythonScripts when I get back from Thanksgiving
vacation.

Cheers,

Evan @ digicool


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Re: [Zope] PythonScripts and ExternalMethods

2000-12-04 Thread Evan Simpson

From: Chris Gray [EMAIL PROTECTED]
 I notice that the CVS tree for Zope2 has incorporated
(internal)
 PythonScripts and gotten rid of (external) PythonScripts.
This leaves the
 old ExternalMethods but without the Bindings tab.  Will
External Methods
 eventually include this and present a form for passing
argument values
 when the TryIt tab is used?

Jim and I expect to make External Methods obsolete, rather
than upgrading them.  In the near future, you will be able
to get most of the functionality of External Methods from
Python Scripts' import capability.  In the longer term, we
expect Zope 3 to completely change the way you write Zope
code.

In the meantime, External Methods work pretty well.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] PythonScripts and ExternalMethods

2000-12-04 Thread Evan Simpson

From: [EMAIL PROTECTED]
 Are you talking about how the interaction between Zope and
 the programmer is performed?  Are you talking about API?
 Or what?

Both, and more.  The details haven't even begun to be worked
out yet, we're still brainstorming.

 In particular, are you talking about killing DTML?  This
would
 be very worrisome, as I have enough code that I would not
like
 to rewrite it all in the near future

I envision tools that will make DTML obsolete, but killing
it?  No, as long as it's useful to you, you'll be able to
keep using it.

Cheers,

Evan @ digicool  4-am


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[Zope] Important Fix for Zope 2.0 through 2.1.6

2000-12-10 Thread Evan Simpson

Thanks to Jeff Ragsdale, we've finally been able to kill a
longstanding bug that allows POST requests to interfere with
each other.  Symptoms include corrupted or aborted File and
Image uploads, and stupid-log messages about
"AttributeError: data" killing threads.

The attached HTTPServer.py is valid for all Zope 2.0.x and
2.1.x versions.  I am posting the patched file for Zope
2.2.x separately.

PLEASE BACK UP Zope/ZServer/HTTPServer.py, then replace it
with the attached file.

Cheers,

Evan @ digicool  4-am


##
# 
# Zope Public License (ZPL) Version 1.0
# -
# 
# Copyright (c) Digital Creations.  All rights reserved.
# 
# This license has been certified as Open Source(tm).
# 
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# 
# 1. Redistributions in source code must retain the above copyright
#notice, this list of conditions, and the following disclaimer.
# 
# 2. Redistributions in binary form must reproduce the above copyright
#notice, this list of conditions, and the following disclaimer in
#the documentation and/or other materials provided with the
#distribution.
# 
# 3. Digital Creations requests that attribution be given to Zope
#in any manner possible. Zope includes a "Powered by Zope"
#button that is installed by default. While it is not a license
#violation to remove this button, it is requested that the
#attribution remain. A significant investment has been put
#into Zope, and this effort will continue if the Zope community
#continues to grow. This is one way to assure that growth.
# 
# 4. All advertising materials and documentation mentioning
#features derived from or use of this software must display
#the following acknowledgement:
# 
#  "This product includes software developed by Digital Creations
#  for use in the Z Object Publishing Environment
#  (http://www.zope.org/)."
# 
#In the event that the product being advertised includes an
#intact Zope distribution (with copyright and license included)
#then this clause is waived.
# 
# 5. Names associated with Zope or Digital Creations must not be used to
#endorse or promote products derived from this software without
#prior written permission from Digital Creations.
# 
# 6. Modified redistributions of any form whatsoever must retain
#the following acknowledgment:
# 
#  "This product includes software developed by Digital Creations
#  for use in the Z Object Publishing Environment
#  (http://www.zope.org/)."
# 
#Intact (re-)distributions of any official Zope release do not
#require an external acknowledgement.
# 
# 7. Modifications are encouraged but must be packaged separately as
#patches to official Zope releases.  Distributions that do not
#clearly separate the patches from the original work must be clearly
#labeled as unofficial distributions.  Modifications which do not
#carry the name Zope may be packaged in any form, as long as they
#conform to all of the clauses above.
# 
# 
# Disclaimer
# 
#   THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS ``AS IS'' AND ANY
#   EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
#   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
#   PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL DIGITAL CREATIONS OR ITS
#   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
#   USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
#   ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
#   OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
#   OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
#   SUCH DAMAGE.
# 
# 
# This software consists of contributions made by Digital Creations and
# many individuals on behalf of Digital Creations.  Specific
# attributions are listed in the accompanying credits file.
# 
##

"""
Medusa HTTP server for Zope

changes from Medusa's http_server

Request Threads -- Requests are processed by threads from a thread
pool.

Output Handling -- Output is pushed directly into the producer
fifo by the request-handling thread. The HTTP server does not do
any post-processing such as chunking.

Pipelineable -- This is needed for protocols such as HTTP/1.1 in
which mutiple requests come in on the same channel, before
responses are sent back. When requests are pipelined, the client
doesn't wait for the response before sending another request. The
server must ensure that responses are sent back in the same order

[Zope] Important Fix for Zope 2.2.x

2000-12-10 Thread Evan Simpson

Thanks to Jeff Ragsdale, we've finally been able to kill a
longstanding bug that allows POST requests to interfere with
each other.  Symptoms include corrupted or aborted File and
Image uploads, and stupid-log messages about
"AttributeError: data" killing threads.

The attached HTTPServer.py is valid for all Zope 2.2.x
versions.  I am posting the patched file for earlier Zope
versions separately.

PLEASE BACK UP Zope/ZServer/HTTPServer.py, then replace it
with the attached file.

Cheers,

Evan @ digicool  4-am


##
# 
# Zope Public License (ZPL) Version 1.0
# -
# 
# Copyright (c) Digital Creations.  All rights reserved.
# 
# This license has been certified as Open Source(tm).
# 
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# 
# 1. Redistributions in source code must retain the above copyright
#notice, this list of conditions, and the following disclaimer.
# 
# 2. Redistributions in binary form must reproduce the above copyright
#notice, this list of conditions, and the following disclaimer in
#the documentation and/or other materials provided with the
#distribution.
# 
# 3. Digital Creations requests that attribution be given to Zope
#in any manner possible. Zope includes a "Powered by Zope"
#button that is installed by default. While it is not a license
#violation to remove this button, it is requested that the
#attribution remain. A significant investment has been put
#into Zope, and this effort will continue if the Zope community
#continues to grow. This is one way to assure that growth.
# 
# 4. All advertising materials and documentation mentioning
#features derived from or use of this software must display
#the following acknowledgement:
# 
#  "This product includes software developed by Digital Creations
#  for use in the Z Object Publishing Environment
#  (http://www.zope.org/)."
# 
#In the event that the product being advertised includes an
#intact Zope distribution (with copyright and license included)
#then this clause is waived.
# 
# 5. Names associated with Zope or Digital Creations must not be used to
#endorse or promote products derived from this software without
#prior written permission from Digital Creations.
# 
# 6. Modified redistributions of any form whatsoever must retain
#the following acknowledgment:
# 
#  "This product includes software developed by Digital Creations
#  for use in the Z Object Publishing Environment
#  (http://www.zope.org/)."
# 
#Intact (re-)distributions of any official Zope release do not
#require an external acknowledgement.
# 
# 7. Modifications are encouraged but must be packaged separately as
#patches to official Zope releases.  Distributions that do not
#clearly separate the patches from the original work must be clearly
#labeled as unofficial distributions.  Modifications which do not
#carry the name Zope may be packaged in any form, as long as they
#conform to all of the clauses above.
# 
# 
# Disclaimer
# 
#   THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS ``AS IS'' AND ANY
#   EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
#   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
#   PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL DIGITAL CREATIONS OR ITS
#   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
#   USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
#   ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
#   OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
#   OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
#   SUCH DAMAGE.
# 
# 
# This software consists of contributions made by Digital Creations and
# many individuals on behalf of Digital Creations.  Specific
# attributions are listed in the accompanying credits file.
# 
##

"""
Medusa HTTP server for Zope

changes from Medusa's http_server

Request Threads -- Requests are processed by threads from a thread
pool.

Output Handling -- Output is pushed directly into the producer
fifo by the request-handling thread. The HTTP server does not do
any post-processing such as chunking.

Pipelineable -- This is needed for protocols such as HTTP/1.1 in
which mutiple requests come in on the same channel, before
responses are sent back. When requests are pipelined, the client
doesn't wait for the response before sending another request. The
server must ensure that responses are sent back in the same order
   

Re: [Zope] Important Fix for Zope 2.0 through 2.1.6

2000-12-11 Thread Evan Simpson

From: "Hannu Krosing" [EMAIL PROTECTED]
 Could something similar be happening in PCGIServer too ?

 We are getting some weird and hard-to-reproduce errors when activity
 goes up and several file uploads are going on simultaneously?

I'm not sure.  I've peeked at the code, and the exact same bug doesn't seem
to be at work.

One way to tell is to create two File objects, open their Upload tab in
side-by-side browser windows, choose the same long file (1MB is good) in
both windows, then start the uploads together (as close as you can manage).

Next, change one of the windows into a Folder add form (any form will do,
really).  Now start the large file upload, then quickly submit the add form.

If there is a similar bug in PCGIServer, the first experiment will give you
a corrupted File (wrong size) and a weird log entry, and the second should
kill a thread with an "AttributeError:data" log entry.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] HTTPServer.py patch

2000-12-13 Thread Evan Simpson

From: Oleg Broytmann [EMAIL PROTECTED]
I've got the patch from the mailing list. I saw only one replacement
 HTTPServer.py here - 13979 bytes in size.

Looks like you've got the one that only works with Zope 2.0 - 2.1.6.  If
you're using Zope 2.2.0 or above, you need the other one.  See
http://www.zope.org/Members/4am/postbugfix

Cheers,

Evan @ digicool  4-am


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Re: [Zope] What version of Python Methods - no - Scripts for 2.2.4?

2000-12-13 Thread Evan Simpson

From: Ronald L. Roeber [EMAIL PROTECTED]
 Is the recommended install of Python Scripts for Zope 2.24 this?

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

 even though it appears to be exactly one year old today (13-Dec)?

Wow, I didn't realize today was its anniversary :-)  No, this isn't the
recommended install of Python Scripts, but it is the closest thing currently
released.

 Can I just copy the PythonScripts  product from my 2.3_a1 Products
 directory to the appropriate location on a 2.24 server or should I use
 the PythonMethod from above? Are there implications for upgrades from
 Methods to Scripts? Am I missing something(s)? (probably) Please advise.

PythonMethod and PythonScripts are independent Products, providing objects
with different meta-types.  They can be installed side-by-side perfectly
safely, and both Python Methods and Python Scripts can be used at the same
time, and even together.

I haven't tried installing PythonScripts in a pre-2.3 Zope, but I have no
reason to expect that it would fail, except in one feature:  Since pre-2.3
Zopes don't support the __render_with_namespace__ protocol, you would always
have to pass parameters explicitly when calling from DTML, and wouldn't be
able to bind the caller's namespace.

If you want to give it a shot, the worst thing that I would expect it to do
is fail and produce error messages when you try to create or use Python
Scripts.  Want to write a Howto? ;-)

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Important Fix for Zope 2.2.x

2000-12-13 Thread Evan Simpson

From: The Doctor What [EMAIL PROTECTED]
 Will these be released as Hotfixes?  Or just new versions? Or is
 this it?

Hotfixes are pretty much reserved for critical security holes.  Zope 2.3
(and possibly an interim 2.2.5 release) and above will have the fix.
Fortunately, HTTPServer has had *very* few changes that would render newer
versions incompatible with older Zopes, so I didn't have to go with a
Windows-unfriendly patch file, and only needed two replacement files.

So, yes, this is it.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] SiteAccess and Roles

2000-12-13 Thread Evan Simpson

From: The Doctor What [EMAIL PROTECTED]
 I tried both Owner and Manager roles in user_acl(2) but it doesn't
 work!

Didn't work in what sense?  They couldn't log in, or didn't get the access
you expected?  More access or less, or just weird?

Cheers,

Evan @ digicool  4-am


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Re: [Zope] SiteAccess and Roles

2000-12-13 Thread Evan Simpson

From: The Doctor What [EMAIL PROTECTED]
 I tried both Owner and Manager roles in user_acl(2) but it doesn't
 work!

Didn't work in what sense?  They couldn't log in, or didn't get the access
you expected?  More access or less, or just weird?

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Difference between Methods and Scripts?

2000-12-14 Thread Evan Simpson

From: Hamish Lawson [EMAIL PROTECTED]
 I see that the latest version of the O'Reilly Zope book now talks about
 Python and Perl *Scripts*, but refers still to DTML and ZSQL *Methods*.
 Does this reflect some actual conceptual difference between a Script
 and a Method, or is it simply because of the burden of also renaming
 DTML, ZSQL, etc?

DTML and ZSQL Methods (and the older Python Methods) act as though they are
bound methods of the object on which they are called.  Python Scripts aren't
bound to any particular object, although they have access to their context,
their container, and their selves.  There could be a future class of DTML or
ZSQL objects that behave this way, but they would probably be better named
Templates than Scripts.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] IE5 / Medusa bug?

2000-12-14 Thread Evan Simpson

From: seb bacon [EMAIL PROTECTED]
 I imagine the fact that I can make it work by adding index_html is the
 most telling point, but it's not telling me anything ;)

Leaving off index_html causes Zope to add a base href to the head.  That's
the only difference I can think of.  Your page doesn't get cut short in my
IE 5.00.2314.1003 (128 bit encryption).

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Python Method and builtin-functions

2000-12-18 Thread Evan Simpson

From: Sven Hohage [EMAIL PROTECTED]
 I'd like to use Python - Methods but I'm afraid
 that some builtin-functions are not implemented like
 type() or list().

This is true.  If it is really a problem for you, you may wish to wait for
Python Scripts.

 Another question is if the Python-Method-product is
 the same thing as the one shipping with Zope 2.3?

Zope 2.3 has Python Scripts, which are much more developed and capable than
Python Methods.

Cheers,

Evan @ digicool  4-am


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[Zope] Product Authors: If you use ZCatalog, READ! (that means you, Chris W. :-)

2000-12-18 Thread Evan Simpson

From: The Doctor What [EMAIL PROTECTED]
 I would happy to, it looks like it does what I need (having
 siteaccess).  However, I don't see a clear cut description what's
 changing and how.  What needs to be done (in easy to understand
 language) to make sure it all goes smooth, etc.

It's one step off the link given before, and really the one page you need to
read:


http://dev.zope.org/Wikis/DevSite/Projects/ZCatalogVirtualHostFix/UpgradeFAQ

 It's a big update, with lots of files.  Will this work with 2.2.4?
 Is it dangerous?  If you're asking for guinea pigs (bweep!) then I'm
 not sure I should be it, as I'm still trying to figure out what's
 going on in many ways.

If you run a copy of your site on this code, it will be evident immediately
whether you have problems or not.  If that's hard to do, you may want to at
least set up a mini-site and export some test data to it.

Authors of Products that use ZCatalog: PLEASE give feedback and try to
document any problems or workarounds for your Product on the
AffectedProducts page (linked from UpgradeFAQ in several places).

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Something missing in Python Methods

2001-01-02 Thread Evan Simpson

From: Curtis Maloney [EMAIL PROTECTED]
 What I want to know is, why can't Python Methods refer to anything not
 explicitly passed to them?  I don't want to have to make everything that
 invokes the method have to know to pass it half a dozen objects.

 Isn't the idea of a method to be executed in the namespace of it's parent?
I
 want my method to be able to access objects in it's own folder...

Yep.  You just need to make the first parameter of your method 'self', and
not have any parameters with default values.  For example, method plusX::

  paramsself, x/params
  return len(self.objectIds()) + x

...can be called like 'folder.plusX(3)'.  You can also acquire objects that
your method needs from 'self'.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Lobbying (was: [Zope] html_quote in python methods?)

2001-01-03 Thread Evan Simpson

From: Chris Withers [EMAIL PROTECTED]
 dtml-call "somemethod(absolute_url()+urlquote(_.getitem(id))"

Well, in Python Scripts at least, you can do::

  from Products.PythonScripts.standard import special_formats
  url_quote = special_formats['url-quote']
  return url_quote("OK?")

It's not great, but it's something.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Why pythonMethod forbids me cutting list?

2001-01-04 Thread Evan Simpson

From: Dirksen [EMAIL PROTECTED]
 These statements in python method:

 stock=[3,4]
 del stock[1]

 will cause this error:

 Error Type: Python Method Error
 Error Value: Forbidden operation DELETE_SUBSCR at line 2

 How is that?

Python Methods aren't smart enough to know that you created the list
yourself, and there's no security risk in allowing you to alter it.  Python
Scripts remove this limitation.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Python script / python method problem

2001-01-04 Thread Evan Simpson

From: Lothar T.E.L. [EMAIL PROTECTED]
 I am having a problem with one of the examples in Chapter 12 of the Zope
 book. I am creating a new product called "Zoo Exhibit" comprising of a
DTML
 method, a Python script and, of course, a factory.

The Zope book examples are based on Zope 2.3, which includes classes (such
as Python Scripts) and behaviors that do not exist in prior versions.  Zope
2.3 is currently in alpha testing, and is available through CVS.

 I have a DTML method sending "id" and "title" to a Python method/script.
 I am told to create a "Python Script". I assume this is done by creating a
 "Python Method"?

Python Scripts supersede Python Methods, and behave somewhat differently.

Cheers,

Evan @ digicool  4-am


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[Zope] Python Scripts update

2001-01-04 Thread Evan Simpson

Python Scripts have gone through a fair number of changes and bugfixes
recently.  They should now work properly as methods of ZClasses.  When you
download the source of a Python Script, the title, parameter list, and
bindings are added to the source in the form of specially formatted
comments.  If source with these comments is uploaded or pasted into a Python
Script, it will properly set the properties mentioned in the comment block.
The default bindings have been changed to be more sensible.

If you want to give Python Scripts a try, you can go to
http://ps.4-am.com:9000/ , pick a password, and you'll get your own private
area in a trunk CVS checkout of Zope in which to play.

I promised examples when I first announced this site, and haven't gotten
around to writing any.  If you have created a script or set of objects on
the demo site that you would like to share as an example, please mail me the
URL.

Cheers,

Evan @ digicool  4-am



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Re: [Zope] What is python scripts?

2001-01-07 Thread Evan Simpson

From: "Dirksen" [EMAIL PROTECTED]
 Is that a product(can't find it in zope's product page) or a new version
of python
 method? Where to download? Please point me to the right direction.

It is the successor to Python Methods (although they can coexist happily),
to be released in 2.3 (now in alpha test).

Cheers,

Evan @ digicool  4-am


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Re: [Zope] How to set a REQUEST variable inside a PythonMethod?

2001-01-09 Thread Evan Simpson

From: Juan Carlos Corua [EMAIL PROTECTED]
 REQUEST.update({'NoRows': 4})

 and I tried:

 REQUEST['NoRows'] = 4

 and I tried:

 REQUEST.set('NoRows', 4)

That last one should have worked; The first two wouldn't.  Do you get an
error on the last one?

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Unidentified problem with SiteRoot

2001-01-09 Thread Evan Simpson

From: Kelvin Cheong [EMAIL PROTECTED]
 I have a problem which i suspect is site root's problem.

Shouldn't be; Site Roots only affect the generation of URLs by the REQUEST,
and by absolute_url.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] SiteAccess and 2.3.0a2

2001-01-10 Thread Evan Simpson

From: "Timothy Wilson" [EMAIL PROTECTED]
 I have Evan's excellent SiteAccess product installed on my 2.3.0a1 Zope

Thank you.

 Now that SiteAccess is part of the Zope core, how should I handle
 the upgrade. Can I simply recompile?

It's the same Product, with only cosmetic changes.  If you're getting Zope
from CVS, you should probably delete your current SiteAccess directory
before cvs up.  If you're using the tarball, simply don't bother installing
SiteAccess in the new installation.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] type in python methods

2001-01-11 Thread Evan Simpson

From: Juan Carlos Corua [EMAIL PROTECTED]
 How can I compare the type of 2 variables in a python method?

 The instruction "if type(var1) == type(var2): " doesn't work.

_.same_type(var1, var2) should do it. (Without the "_." in Scripts).

Cheers,

Evan @ digicool  4-am



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Re: [Zope] importing string module in python METHOD - a problem that shouldn't be aproblemproblem

2001-01-13 Thread Evan Simpson

From: "Lee" [EMAIL PROTECTED]
 I have a Python method that needs to use the string module. In the
 method body I have the 'import string' statement but when I try it =

As Shane mentioned, 'import' is only enabled in Python Scripts, but Python
Methods pre-import all of the same modules as DTML, including 'string'.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] ZClasses meet PythonScripts, sample request

2001-01-14 Thread Evan Simpson

From: "Jim Washington" [EMAIL PROTECTED]
 I am not working through that example, but the below is a start on what
 you seem to need. Let me know what you think.

Thanks for the fine examples!  I have only one nit to pick; When using
Scripts in ZClasses, you will typically want to use 'container', not
'context', since 'context' may not be the ZClass instance, but 'container'
always is.  Of course, a Script may operate on both the instance and on
whatever object it was called on, in which case both 'container' and
'context' will be used.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] __setstate__ and acquisition

2001-01-20 Thread Evan Simpson

From: "Matt" [EMAIL PROTECTED]
 I am using __setstate__ to reload files into memory for objects of a
product I
 have made.  This all works nicely, as is it supposed to.  The problem
though is
 that the object seems not to know about its environment at that time

__setstate__ is called on the bare object, without any acquisition wrappers.
All you can do at that time is load state and set volatile attributes for
use later.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] mailhost example problem

2001-01-22 Thread Evan Simpson

From: Michael Angelo [EMAIL PROTECTED]
 i am experiencing a strange problem with using the mailhost example on
 zope.com.

Is your code indented the way it is in your email?  I don't think
dtml-sendmail and its contents should be indented, since the contents are
meant to be the literal text of the message and its headers.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] VirtualHostMonster, PATH_INFO and absolute_url

2001-01-24 Thread Evan Simpson

From: Itai Tavor [EMAIL PROTECTED]
 1. When accessing http://10.0.1.21/spam PATH_INFO is
 /VirtualHostBase/http/10.0.1.21:80/MySite/VirtualHostRoot/spam, which
 breaks any method that uses PATH_INFO (For example, the login form of
 LoginManager). Can this be fixed somehow?

The Zope virtual hosting machinery doesn't adjust CGI variable.
Applications should use URL0 or URLPATH0 instead of PATH_INFO.

 2. In this setup, if I got it right, absolute_url() for /MySite/spam
 should return http://10.0.1.21/spam. But it returns
 http://10.0.1.21/MySite/spam. Something's broken?

Yep, VirtualHostMonster has a bug, now fixed in CVS.  Thanks!

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Add this to Wish list

2001-01-24 Thread Evan Simpson

From: Jerome Alet [EMAIL PROTECTED]
 Please could you include a button "Download Source" to the Python Script
 edition form ?

Already done; There's a link in the paragraph below the text area, and above
the upload form (in CVS).

Cheers,

Evan @ digicool  4-am


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

2001-01-24 Thread Evan Simpson

From: "Curtis Maloney" [EMAIL PROTECTED]
 A Z SQL Method ( Returner.sql.getDetails )
[snip]
 dtml-with "Returner.getDetails(Returner, User=12)"
   dtml-var fieldName
 /dtml-with

You want either:

dtml-in "Returner.getDetails(Returner, User=12)"
  dtml-var fieldName
/dtml-in

...or...


dtml-with "Returner.getDetails(Returner, User=12)[0]"
  dtml-var fieldName
/dtml-with

Cheers,

Evan @ digicool  4-am


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Re: [Zope] VirtualHostMonster, PATH_INFO and absolute_url

2001-01-24 Thread Evan Simpson

From: "Itai Tavor" [EMAIL PROTECTED]
 Great, thanks for the fix. It's fine in Zope 2.3b3.

I should probably write a Howto for VirtualHostMonster, and ask the folks
who've written the various fine SiteAccess-related Howtos to incorporate it.
It really is a lot easier and safer to use than SiteRoots 98% of the time.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] VirtualHostMonster, PATH_INFO and absolute_url

2001-01-25 Thread Evan Simpson

From: Philip Aylesworth [EMAIL PROTECTED]
 I would appreciate that HOWTO. :) I am going to need virtual hosting for
 a project I am undertaking and don't even know where to begin. Is
 VirtualHostMonster part of SiteAccess (which I have just discovered when
 I did a search on zope.org)? Do I need to use apache for it? Should I
 use apache rather than ZServer if I don't need any of apache's features?

If you genuinely don't need Apache, ZServer is certainly good enough.  Many
people (such as myself) use Apache for a cheap management/performance win
serving large utterly static content like images, for battle-tested SSL, and
for the ability to run other back-end servers or CGI in parallel.
VirtualHostMonster is a newish SiteAccess component that makes virtual
hosting easy for the most common cases, where Apache or some other thin
back-end is handling the incoming rewriting, and the rewriting consists of
host/port renaming and path insertion (http://www.myhost.com/ =
http://localhost:8080/myhost).  In this case, all you need is one
VirtualHostMonster and a slight, easy change to your rewrite/proxy
directives.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] SiteRoot 2 errors

2001-01-26 Thread Evan Simpson

From: Stephan Goeldi [EMAIL PROTECTED]
 I want to add a SiteRoot to my domain subfolder.
 I installed a fresh Zope 2.2.5 and in the lib/python/Products folder I
 extracted SiteAccess-2.0.0b4-nonbin.tgz. After this I restarted Zope.
 When I click to Add SiteRoot, I get the following error message:
[snip]
   File /usr/local/zope/lib/python/DocumentTemplate/DT_String.py, line 566,
 in read_raw
 (Object: www/SiteRootAdd)
 IOError: (see above)

Check the file ownership/permissions on the SiteAccess directory and its
subdirectories.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Acquisition Algebra; interaction of containment and acquisition is confusing

2001-01-26 Thread Evan Simpson

From: Fred Yankowski [EMAIL PROTECTED]
 for the very last case, "a.b.c.x".  I just can't follow why the
 equivalent expression isn't

 x.__of__(a).__of__(c.__of__(b.__of__(a)))

 rather than the more complex answer given:

 x.__of__(a).__of__(b.__of__(a)).__of__(c.__of__(b.__of__(a)))

You can expand any access path into an acquisition expression using the
following 3-1/2 rules:

1. Given an unwrapped object 'x', x.child = (child o x)
2. Given a wrapper (self o parent),
  a. (self o parent).child = self.child o (self o parent) if 'child' is
found in 'self'.
  a. (self o parent).child = parent.child o (self o parent) if 'child' is
found in 'parent'.
3. Reduce ((a o b) o (b o c)) to (a o (b o c)) as soon as it appears.

So, a.b = (b o a).  a.b.c = (b o a).c = (b.c o (b o a)) = (c o (b o a)).
Finally, a.b.c.x = (c o (b o a)).x = ((b o a).x o (c o (b o a))) =
   ((a.x o (b o a)) o (c o (b o a))) = (((x o a) o (b o a)) o (c o (b o a)))

 When I run the test cases given in the document I see that the latter
 does match the behavior, but I find that baffling.  In particular, why
 is the effective search order x-a-b-c rather than x-a-c-b?  It almost
 looks like the effective search order could be described as "up
 through the containment heirarchy, then down through the remaining
 acquired path", but I'm not at all sure if that's a valid
 generalization.

Almost.  It's "up through the containment hierarchy, then the rest of it
somehow".  Trying to control or predict the exact search order for any but
the simplest acquisition trees is a dangerous game.  You can read it off
directly from the algebra form, as in (((x o a) o (b o a)) o (c o (b o a)))
= x, a, b, c (ignoring duplicates), but it's unlikely to be useful, as you
saw.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] Acquisition Algebra; interaction of containment and acquisition is confusing

2001-01-26 Thread Evan Simpson

From: Fred Yankowski [EMAIL PROTECTED]
 Now, does that bother anyone besides me?  Since acquisition is intrinsic
 and ubiquitous in Zope, shouldn't we be concerned that it is hard to
 control or predict?

Keep in mind that it is only the *order after containment* that has this
problem. For instance, schemes to "skin" a subfolder by changing access
paths should ensure that there is always exactly one "skin" implementation
in the acquisition path.  It is tempting to provide a "default skin" in the
containment path, but then you can't override it.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] PythonScript question

2001-01-27 Thread Evan Simpson

From: "Timothy Wilson" [EMAIL PROTECTED]
 Error Type: TypeError
 Error Value: argument 1: expected read-only character buffer, instance
found
[snip]
input name="display_date:date" size="20" value=""/td
[snip]
 D = string.split(display_date, '/')

You are marshalling 'display_date' as a date, then trying to treat it as a
string.  You need to either convert it to a string or use date methods.

Cheers,

Evan @ digicool  4-am


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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] porting from Python Methods to PythonScripts in 2.3.0; LoginManager too

2001-01-29 Thread Evan Simpson

From: "Fred Yankowski" [EMAIL PROTECTED]
 + Don't copy over SiteAccess and PythonMethods.
 + Delete the PythonMethods product from the Control_Panel/Products
   management folder.

 Will I have to manually convert each existing Python Method to
 a PythonScript, or are they essentially the same type?

They are radically different types, and can therefore live in the same Zope,
side-by-side, without conflicting.  There is no automatic conversion
process.  Simply keep PythonMethods installed, and replace individual
Methods with Scripts as you feel the need.

Cheers,

Evan @ digicool  4-am


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Re: [Zope] porting from Python Methods to PythonScripts in 2.3.0;LoginManager too

2001-01-29 Thread Evan Simpson

From: "Jim Washington" [EMAIL PROTECTED]
 Standard caveats, YMMV, etc, but it does a quick pass on the Methods in
 the folder where it is and makes Scripts from them when you hit the
 'test' tab, saving the old ones as methodname.old.

Excellent!  Thanks for writing and sharing this -- it looks like a fine
candidate for a HOWTO.

Cheers,

Evan @ digicool  4-am


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Re: [Zope-dev] Re: ZCatalog and Unique IDs

2000-05-25 Thread Evan Simpson

- Original Message -
From: Chris Withers [EMAIL PROTECTED]
 who's the CTO?

Jim Fulton, Chief Technology Officer.

  use paths instead of object monikers.

 Why not do both?

 Have an POID (CORBA style) to actually identify an object and then use
 paths of POIDS to identify stuff in a cotnext *when you need to*...

 comments?

A man with one watch knows what time it is;  A man with two is never sure.
That may not be a problem in this case, but I have a sneaking suspicion it
would be.  Still, if you can demonstrate that can be valuable and coherent,
it could probably be done.

Cheers,

Evan @ digicool  4-am


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Re: [Zope-dev] Problems with LoginManager form-based login

2000-05-26 Thread Evan Simpson

- Original Message -
From: Phillip J. Eby [EMAIL PROTECTED]
 Been there, done that.  Yours doesn't work either, btw.  Well, actually,
it
 does, it's just that it causes a memory leak because it leaves an
 unintended circular reference.  We've got a version that fixes the
circular
 reference, but in a really really ugly way (it does a run-time patch to
 BaseRequest.close() to remove the poked-in unauthorized() method).

The GUF version, at least, doesn't need this drastic a fix.  Adding the
following line to the top of guf_unauthorized should suffice:

del request.RESPONSE.unauthorized

Cheers,

Evan @ digicool  4-am


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Re: [Zope-dev] Traversal Stuff

2000-05-31 Thread Evan Simpson

- Original Message -
From: Chris Withers [EMAIL PROTECTED]
 What this offers is having a URL like:
 http://mysite.com/folder/object/some/parameters

 processed by the 'object' object with a parameter of '/some/parameters'
 or better still a 'URL objects' list as a parameter.

 This sounds like Traversal Interface stuff so I thought now would be a
 good time to mention it given the traversal interface is being re-done.

ZSQLMethods do this in __bobo_traverse__, through a rather complicated
system of temporary traversal objects.  Once the new traversal machinery is
in place, you'll be able to do it in either __bobo_traverse__ or
__before_publishing_traverse__ (the former if you want to be able to do it
all the time, the latter only during ZPublisher traversal) by manipulating
REQUEST['TraversalRequestNameStack'].  The specifics of this are still in
flux.

Cheers,

Evan @ digicool  4-am


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Re: [Zope-dev] SiteAccess in 2.0.0b2?

2000-06-23 Thread Evan Simpson

- Original Message -
From: T.J. Mannos [EMAIL PROTECTED]


 I'm having trouble getting SiteAccess 2.0.0b2 to work with Zope 2.2.0b2.
 The first odd thing that happens is when I create a new SiteRoot, it says
 that this object already has a SiteRoot (which it doesn't), but creates it
 anyway.  The second is: it doesn't seem to work at all!  The value of URL1
 still has the :9080 port and the wrong virtual server.  Any ideas?

What's your platform (win, linux, *bsd)?  Is this a Zope database which has
been upgraded from an earlier version of Zope?  If so, were you using
SiteAccess 1.x with that earlier version?

Cheers,

Evan @ digicool  4-am



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Re: [Zope-dev] NASTY error. Why?

2000-07-10 Thread Evan Simpson

From: Chris Withers [EMAIL PROTECTED]

  dtml-call "REQUEST['where'][-1].manage_addFolder(id)"

 Error Type: TypeError
 Error Value: read-only character buffer, Python Method

Looks like the 'id' of something along the line is a method rather than a
string.  Try "_.getitem('id', 1)".

Cheers,

Evan @ digicool  4-am


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Re: [Zope-dev] getting request variables values

2000-07-20 Thread Evan Simpson

The value you're after is stored in the 'environ' section of the request.
Unlike 'other' and 'cookies' keys, 'environ' keys can't generally be fetched
as attributes or keys of REQUEST.  You need to access them as
REQUEST.environ['keyname'].

Cheers,

Evan @ digicool  4-am


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Re: [Zope-dev] Acquisition Confusion :S

2000-08-08 Thread Evan Simpson

From: Chris Withers [EMAIL PROTECTED]
 Who would be best to ask why it was set up the way it is?

 I'm sure there are very good reasons for it but the search order in all
 but the simple cases is very confusing and not as useful as it could be.

 How much more work would it be to implement the following algorithm,
 regardless of how the actual containment is?
[snip]

I haven't got the whole reason, but here are some of the pieces:

- never expose a "bare" object, or even one with an incomplete context
- allow the user to backtrack along the context chain

These two together give you the part about aq_parent always being the
previous acquisition result.

- allow recovery of containment information
- base security on containment

These two motivate the simplification of raw acquisition.  With the
simplification, you get containment-first search and aq_inner.aq_parent
gives you your fully-wrapped container.

The current acquisition implementation is thus a weird hybrid of containment
and context.  It retains both sorts of information while providing the
search semantics we want security to have.

It isn't hard to convert a standard acquisition wrapper into either of the
other sort.  I'm going to propose adding something like the following
functions:

def aq_context(ob):
context = []
while ob is not None:
context.append(ob.aq_base)
ob = ob.aq_parent
ob = context.pop()
while context:
ob = context.pop().__of__(ob)
return ob

def aq_containment(ob):
context = []
while ob is not None:
context.append(ob.aq_base)
ob = ob.aq_inner.aq_parent
ob = context.pop()
while context:
ob = context.pop().__of__(ob)
return ob

... so that you could write something like dtml-var
expr="aq_context(foo).bar" or dtml-with foo
contextdtml-bar;/dtml-with.  In the meantime, they make fine External
Methods.

Cheers,

Evan @ digicool  4-am


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