September 2004 - Zope

Is it possible to use a ZClass as a base for a Python Class?
by Bill Hewitt 11 Sep '04

11 Sep '04

I have a lot of ZSQL Methods stored in a ZClass and I am wondering if it is possible to somehow import this ZClass and use its methods in a Python Class... I've seen lots about using a Python Class as the Base for a ZClass, but nothing for the other way around.... Anyone know how to do it? WPH

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webdav
by John Hunter 11 Sep '04

11 Sep '04

I have a zope server distributing files (eg microsoft word files). These files are templates and should not be editable in place by users using webdav. I want them to download them, edit them on their computer, and then upload the modified document through a web form, which will place the modified document in a new folder. This works fine on linux / osx / etc across many browsers. I am also using CookieCrumbler for authentication. On Windows computers running IE, however, when a user clicks on one of the documents, the basic authentication dialog appears even though they have been authenticated already with cookie crumbler. I've read that you can serve these documents over the webdav src port to work around this, because webdav doesn't understand cookies. I haven't tried it yet because authentication is not my primary concern. As I understand it, webdav is used so that effectively users can edit documents in place. I want to prevent this. What is the right way to achieve this? I was hopeful that by changing the "WebDAV access" and related webdav permissions so that the users don't have permission to do this I could circumvent the problem. This may ultimately work, but I still get the basic authentication dialog. Perhaps if I serve it over the webdav port and remove webdav permissions in the securities tab I can get everything I want, which is: users have read only access to the document and authentication is with cookie crumbler. I hate it when computers try and be helpful. Suggestions, please. Thanks, John Hunter zope 2.7

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Missing images in Zope-Book BackTalk
by Andreas Tille 11 Sep '04

11 Sep '04

Hello, I was not able to find the following images when I checked out the Zope Book sources: "Database Cache settings":img:23-1:Figures/dbcache.png "Viewing the pricelist method":img:9-1:Figures/9-1_bobsfeedbags.png The later was reported in http://mail.zope.org/pipermail/zdp/2004-April/004572.html but not yet fixed. I found this image at http://www.zopewiki.org/Figures/9-1_bobsfeedbags.png but Google did not found a hit for the dbcache.png image. Kind regards Andreas.

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MailBoxer + Kerio
by Kyle Mott 10 Sep '04

10 Sep '04

Hi. I'm looking for some type of 'imap-to-zope-gateway' script. It should interface with MailBoxer [http://mjablonski.zope.de/MailBoxer/] I talked to the developer and he has heard rumors that these scripts exist. The standard 'smtp2zope.py' won't work because our MailServer (Kerio) won't allow us to pipe messages to a file. Does anyone know where I can find this, or another alternative? -Kyle Mott Directory of Operations, http://www.gadoz.com/

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How to get Client IP adres with Zope behind Apachr
by Martin Koekenberg 10 Sep '04

10 Sep '04

Hello, I'm running Zope (2.7.0) behind Apache (2.0.50). I'm trying to get the client ip adres but I always get 127.0.0.1.... That's logical because Apache runs on the same server. How can I get the real users IP adres ? Thanks for your help...... Martin Koekenberg

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RE: [Zope] How to get Client IP adres with Zope behind Apachr
by Jean-Francois.Doyon＠CCRS.NRCan.gc.ca 10 Sep '04

10 Sep '04

You want: HTTP_X_FORWARDED_FOR (At least that's what it is with Apache 1.3.x) J.F. -----Original Message----- From: zope-bounces(a)zope.org [mailto:zope-bounces@zope.org]On Behalf Of Martin Koekenberg Sent: September 9, 2004 5:40 PM To: zope(a)zope.org Subject: [Zope] How to get Client IP adres with Zope behind Apachr Hello, I'm running Zope (2.7.0) behind Apache (2.0.50). I'm trying to get the client ip adres but I always get 127.0.0.1.... That's logical because Apache runs on the same server. How can I get the real users IP adres ? Thanks for your help...... Martin Koekenberg

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possible bug when creating the request environment (headers)
by Sascha Ottolski 10 Sep '04

10 Sep '04

Hi, I stumbled over something in conjunction with pound. pound adds an X-Forwarded-For header to each request. However, from inside zope, this additional header might be invisible. I guess the problem occurs, if there already was a X-Forwarded-For header in the request: pound writes a new, second one. And it seems, that the REQUEST has only one of the two headers (so that REQUEST.get('HTTP_X_FORWARDED_FOR') is missing the value pound added). I already sent this to the pound list, and was told that having multiple headers with the same value is allowed, which seems to be correct according to RFC2616 (HTTP 1.1): "Multiple message-header fields with the same field-name MAY be present in a message if and only if the entire field-value for that header field is defined as a comma-separated list [i.e., #(values)]. It MUST be possible to combine the multiple header fields into one "field-name: field-value" pair, without changing the semantics of the message, by appending each subsequent field-value to the first, each separated by a comma. The order in which header fields with the same field-name are received is therefore significant to the interpretation of the combined field value, and thus a proxy MUST NOT change the order of these field values when a message is forwarded." That said, in case of ... X-Forwarded-for: client1, proxy1 ... X-Forwarded-for: proxy2 <-- added by Pound ... zope should create something like this: ... X-Forwarded-for: client1, proxy1, proxy2 ... not only for x-forwareded-for, but for any header around, I guess. I doubt that it would be difficult to fix. Unfortunately, I couldn't find the place where a generic header processing takes place do try myself :-( Cheers, Sascha

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BitTorrent tracker?
by Richard Jones 10 Sep '04

10 Sep '04

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Has anyone done any work setting up a BitTorrent tracker using Zope? Richard -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFBQTYSrGisBEHG6TARAudgAJ0ZSsm2Bmfk1xvQStMktDdzeNHqSACfWMji MXe85gWFKiz9enlxd7/EupE= =sHvS -----END PGP SIGNATURE-----

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Zope4Intranets problems
by scott lewis 10 Sep '04

10 Sep '04

I recently purchased the binary version of Zope4Intranets (Z4I) from Zope Corporation. The software was supplied without a user manual. I asked for a user manual and was supplied with one. The title page identified it as being for Zope4Intranets binary. However, all of the contents related to the full source code version of Zope4Intranets. For example, only Unix systems are detailed, while the binary version is only available for Windows. Significant portions appear to be missing. For example, under Section 2: Setup and Installation there are three topics listed - Deploy Zope, Configure Zope4Intranets and Build and run a Zope4Intranets server. In my manual, only the first section, deploy Zope, is included and all the instructions are for Unix systems. The instructions provided are inadequate for me to utilize this software. I am based in Australia, and my company has paid over $US3000 for this product. Zope Corp. has now offered me a choice: they will send me the manual for the full source code edition of Zope4Intranets (which is no doubt for Unix) or they will refund the purchase price. I have no idea what to do. To some extent, my job is at stake on this project. I am an experienced Python programmer, but have only built very simple Zope sites. Does anyone have any help or advice on Zope4Intranets, or can anyone offer me any insight into the contents of the full manual? I need only the first few steps, but Zope Corp. seems reluctant or unable to supply these. Many thanks for any help or suggestions. I have been very surprised to be so shabbily treated by Zope Corp. regards, Scott Lewis -- Scott Lewis Business Systems Analyst e: scottl(a)palamedia.com.au p: 61 3 9856 3905 f: 61 3 9856 3999 w: www.abix.com.au smartBIX: www.smartbix.com.au ABIX - tools for the information economy ABIX is operated by Business Intelligence International Pty Ltd and is wholly-owned by Palamedia Ltd. [The contents of this email are confidential and not intended for publication.]

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Management View
by Edward Hartfield 09 Sep '04

09 Sep '04

I'm writing my first Zope product. It's a folder-like object. I'm implementing before_publish_traverse() so that I can do authentication (but not using Zope's security model). Authentication logic is different depending on whether or not the managment view of the resource is being sought. Does anyone know if there is a way to tell programmatically whether the management view of a resource is being requested, other than looking for 'manage_workspace' as the last element in the path?

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