November 1999 - Zope

SQL Session docs need an update (at least for 2.1b2)
by Bill Anderson 18 Nov '99

18 Nov '99

For those of you trying out 2.1beta2, and considering SQLSession, I have a rather import note. Problem: The docs say to use <dtml-var "SESSION.set('foo','bar')"> to set a new variable in the session. Apparently, the new dtml-var changes will print "None" at this point in your html. Can be damned annoying. Fix: use <dtml-call "SESSION.set('foo','bar')"> and None goes away. arghh .. must get sleep ... -- "They laughed at Columbus, they laughed at Fulton, they laughed at the Wright brothers. But they also laughed at Bozo the Clown." -- Carl Sagan

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How to define selection list elements
by technews＠egsx.com 18 Nov '99

18 Nov '99

Hi, I am creating an object in Zope. I have defined various different values for the object such as url (string) title (string) description (text) But now I want to create a drop down object that has predefined values so the users can select one of the options. There is a property called selection list, and I was unable to find any documentation in how to use it. I tried adding a space seperated values, but it did not work. In the Zope content manager guide on page 42 (pdf version) figure 40 it does not talk about the selection lists. Any help will be appretitated.. Adonis

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zope+apache+fastcgi
by kedai 18 Nov '99

18 Nov '99

hi, zope 2.1.0b2 on rh6.1 zope running on port 8080 apache on 80 setup for fastcgi use with zope. is it the real behaviour that when i point to http://my.zope.com/, i was redirected to medusa? on the browser location i have http://my.zope.com:8080 when i used pcgi, there were no reference of browsers talking to medusa. or am i missing something? tia

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Re: [Zope] login with a login page [Q]
by Bruno Mattarollo 18 Nov '99

18 Nov '99

Hello.. Thanks.. I have downloaded and installed it on a temporary folder. Now I am trying to make it work, but I have an annoying problem... Our user tables are "splitted" -some designer would say normalized (i presume that is the translation in english)- ;-) and I cannot insert user data over one ZSQL method. Anyone has some other way to insert data for the UserDB "sqlAddQuery" method? TIA /B Bruno Mattarollo <brunomadv(a)ciudad.com.ar> --- Python Powered <http://www.python.org/psa/> ----- Original Message ----- From: Otto Hammersmith <otto(a)ipass.net> To: <brunomadv(a)ciudad.com.ar>; <zope(a)zope.org> Sent: Wednesday, November 17, 1999 12:15 PM Subject: Re: [Zope] login with a login page [Q] Go for UserDB. It will do exactly what you need and is stable. :) Un-maintained doesn't necessarilly mean "defunct and broken"... most times in the open source community, it means "feature complete and stable". Basically, no one has felt the need to add features and there are no serious bugs (if there were, I'm sure someone would step up and fix it). (On the features front... I'm not saying UserDB is the end all be all of a User Folder product, check out http://www.zope.org/Members/Zen/GenericUserFolder/. :) -Otto. -----Original Message----- From: Bruno Mattarollo brunomadv(a)ciudad.com.ar Sent: Wed, 17 Nov 1999 11:59:23 -0300 To: zope(a)zope.org Subject: [Zope] login with a login page [Q] Hello. Even if the subject may seem funny, it's a real question... :-) I am trying to develop a login page to a site we are developing. I don't want to be prompted with a pop-up window, I just want to user to view a form and write there the user and password and press "Login" as in the Member login page from the Zope.Org site. Does anyone can give me a hint on how to do that? Our user data will be stored in an RDBM database (Oracle8i). I saw the UserDB product. But apparently it's no longer maintained. The functionality is to bring areas for members and areas for anonymous users. Thanks in advance. ______________________________________________________________________ Get Visto.com! Private groups, event calendars, email, and much more. Visto.com. Life on the Dot. Check it out @ http://www.visto.com/info

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FYI: QuickStart Zope/Apache on RedHat 6.1 (mini HOWTO)
by Nemeth Miklos 18 Nov '99

18 Nov '99

QuickStart Zope/Apache on RedHat 6.1 by Miklos Nemeth (nemeth(a)iqsoft.hu) Zope installation is extremelly simple if you use ZServer. But if you want to use Zope with Apache, the installation procedure might be a nightmare. I fight nearly a half day to install Zope with Apache. This document describes the steps I used to install my Zope with my Apache. I used RedHat 6.1, Apache 1.3.9 installed the standard RedHat way: (1) httpd.conf in /etc/httpd/conf, (2) document root directory: /home/httpd (owned by root) (3) the user/grout to run httpd: nobody/nobody (4) port: 80 (5) startup/shutdown script: /etc/rc.d/init.d/httpd The first phase is to install Zope: (1) Change (ie. su) to root, and cd to /usr/local (2) Extract the Zope distribution file: tar xfz Zope-2.0.1-linux2-x86.tgz (3) cd to Zope-2.0.1-linux2-x86 (4) run "./install -u nobody -g nobody" If you do not specify "-u nobody and -g nobody" install will not set correctly the ownership of some files and directories. nobody/nobody will be set as the user for Zope.cgi, access, start, stop and the var directory and its contents. (5) Try to remember (ie. jot down to a safe place) the password of the user "superuser". The password is printed on the screen by install. (6) Copy the Zope.cgi into the directory /home/httpd/cgi-bin with "cp -p": "cp -p Zope.cgi /home/httpd/cgi-bin". The -p option of the cp command is very important. The Zope.cgi should be owned by nobody even in the /home/httpd/cgi-bin directory. (7) Start ZServer as nobody (if you are logged in as root): "su nobody start". ZServer will use ports 8080, 8021, 8099. If these ports are in use on your system, you should explicitly specify port numbers for the start script (see the z2.py options -P, -w, -f, -m). It is crucial not to start ZServer as root, otherwise it creates the var/pcgi.soc file as root, and pcgi-wrapper (see later) will not have permission to open it as it will be run as nobody by Apache. You do not have to specify -p for the start script: PCGI is enabled by default. If you want to have some info about the available parameters for start, have a look at z2.py (start invokes the z2.py module). Later you may edit the start script as suggested by the "Gotchas for Zope Beginners" HOWTO. (8) If you later wishes to stop ZServer, open a new terminal and invoke: "su nobody /usr/local/Zope-2.0.1-linux2-x86/stop" The second phase is to edit /etc/httpd/conf/httpd.conf to force Apache passing authentication data to Zope.cgi (1) As root edit httpd.conf, and add to the end the following lines: RewriteEngine on RewriteCond %{HTTP:Authorization} ^(.*) RewriteRule ^/Zope(.*) /home/httpd/cgi-bin/Zope.cgi$1 [e=HTTP_CGI_AUTHORIZATION:%1,t=application/x-httpd-cgi,l] The RewriteRule directives must be one line. For more info see Gotchas for Zope Beginners. (2) Restart (as root) your Apache server by: "/etc/rc.d/init.d/httpd restart" (3) Start Netscape and type the URL: http://localhost/Zope. You will see the "Welcome to Zope" page. Click on the "management screen" link. (4) You will be asked for a username and password. Type in "superuser" and the password you have jot down during the Zope install. If the user name and password are correct you will have the main Zope management page. (5) You may connect to the management page directly by using the URL: http://localhost/Zope/manage (6) Notice that the root folder of your Zope site will be named Zope (7) You may also connect to ZServer directly (avoiding PCGI): http://localhost:8080/manage. In this case the root folder will be unnamed. Why the user nobody? When Apache (ie. httpd) is started as root it opens the privileged ports (80, 443 (SSL)), opens the log files, and then stops acting as potentially dangerous root and become nobody (as specified in httpd.conf). All CGI programs/scripts will be run as nobody. The Zope.cgi (see below) is also run by nobody. The simplest configuration is to run Zope as nobody, too. If you are an experienced UNIX administrator, and you understand how Apache and PCGI works, you may invent more complicated setups. What is this Zope.cgi, and how does it work? Zope.cgi is an executable file, but it is not a shell script to be executed by sh. If you look at the first line you will understand the trick: #!/usr/local/Zope-2.0.1-linux2-x86/pcgi/pcgi-wrapper. That is, Zope.cgi will be run by pcgi-wrapper, when Apache starts Zope.cgi (as nobody -- remember!) , if an URL requests to do so. pcgi-wrapper parses the content of Zope.cgi and tries to connect to a running server. An important directive is PCGI_SOCKET_FILE which points to /usr/local/Zope-2.0.1-linux2-x86/var/pcgi.soc; this file is used as a communication medium between pcgi-wrapper (invoked by Apache) and ZServer (started by the start script). Each time pcgi-wrapper started (as a normal CGI program) it connects to ZServer via the pcgi.soc socket file, transfers the HTTP request to ZServer, waits for the respose and returns data back to the Apache server. Note that ZServer is started once and runs forever, but PCGI is started each time a Zope request is received by Apache. Why to use PCGI? ZServer does not support SSL, which may be an important requirement in your case. Apache supports SSL (Apache+SSL or mod_ssl), and thus Zope may be used in secured communication with the help of PCGI. What are the shortcomings of PCGI? (1) PCGI is run as a normal CGI program. Every time a HTTP request is sent to the Zope server a process is spawned for running Zope.cgi (via pcgi-wrapper). (2) The Zope server must be installed on the same host as the Apache server, because currently PCGI does not support remote communication. Other invaluable documents: How-To: Gotchas for Zope Beginners (by jens) How-To: Zope/Apache Virtual Host HOWTO (by jec)

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Re: [Zope] FYI: Zope Weekly News
by Simon Michael 18 Nov '99

18 Nov '99

Thanks for a great news roundup - I especially liked the summaries of recent list threads.

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Simple DTML (dtml-with) question ...
by Darran Edmundson 18 Nov '99

18 Nov '99

A simple question: Say I have a folder (top) which has a child folder (child). Inside child is an image (childimage). I.e., top (folder) | child (folder) | childimage (image Trying to run the following snippet of DTML within top gives (not surprisingly) the correct image id but fails to render the image. <dtml-with child> <dtml-with childimage> Image <dtml-var id> renders as <img src="<dtml-var id>"> </dtml-with> </dtml-with> Is there a simple solution to this problem? To me it looks as if I need to prepend the path from the called folder to the childimage folder. Any help is much appreciated. Cheers, Darran. -- Darran Edmundson [Darran.Edmundson(a)anu.edu.au]

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Re: [Zope] aargh. corrupted zope1.10 install.
by Anthony Baxter 18 Nov '99

18 Nov '99

Fixed. Somehow, a lock was left lying around on the Data.bbb.trans file. I have _no_ idea how this happened, but grovelling around in /proc/locks and /proc/*/fd fixed it. Obviously the bit of Zope 1.10 that handles locking the Data.bbb.trans file doesn't fail correctly, or something. *sigh* Too much excitement this early in the day. I need a coffee. Anthony >>> Anthony Baxter wrote > I've got a Zope 1.10 install that until this morning was working > absolutely fine. Suddenly it's developed a rather bad habit - it > seems like loading the ODB is failing in some way. It starts up > fine, but attempts to access anything fail. > > Doing a GET / HTTP/1.0 simply returns back > > <module 'Main'> > > I've tried moving the Data.bbb aside, and putting in the Data.bbb.in > that the installation shipped with, to no avail. As far as I can see, > _nothings_ changed in the system (so sayeth find . -mtime). > > Anyone? Please? > > Anthony > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > No cross posts or HTML encoding! > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev ) -- Anthony Baxter <anthony(a)interlink.com.au> It's never too late to have a happy childhood.

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aargh. corrupted zope1.10 install.
by Anthony Baxter 18 Nov '99

18 Nov '99

I've got a Zope 1.10 install that until this morning was working absolutely fine. Suddenly it's developed a rather bad habit - it seems like loading the ODB is failing in some way. It starts up fine, but attempts to access anything fail. Doing a GET / HTTP/1.0 simply returns back <module 'Main'> I've tried moving the Data.bbb aside, and putting in the Data.bbb.in that the installation shipped with, to no avail. As far as I can see, _nothings_ changed in the system (so sayeth find . -mtime). Anyone? Please? Anthony

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Zope - Mailman
by Marco Beri 18 Nov '99

18 Nov '99

Hi everyone. I need to build a site where my customer has to create, delete and manage mailing lists. I want to give him the ability to do that but he doesn't (and doesn't want to) know anything about Mailman, Zope, html. The mailing lists are not public and he decides who participate which list. Do you think I can do that interfacing in some way Zope with Mailman? Or Do I need to modify Mailman? Or does Mailman already have these features? Many thanks for your time. Ciao. Marco. P.S. As you may imagine, I never used Mailman and I just need a direction to start working.

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