seaside October 2008

seaside@lists.squeakfoundation.org

84 participants
81 discussions

Collecting form input
by Sebastian Nozzi 09 Oct '08

09 Oct '08

Hello all, when trying to collect the values from a form, I run into a problem. Let's suppose I write a form to add a new user (user name), together with an user-type. I was trying to do something like this: | newName newType | html form: [html textInput value: 'type name here'; callback: [:name | newName := name]. html select list: userTypes; callback: [:userType | newType := userType]; labels: [:userType | userType asString]. html submitButton callback: [self addUserNamed: newName withType: newType]; value: 'Add New User'] But it didn't work. Inside of the callback-block of the submit-button, both variables were nil. I searched a little in Internet and the cause seems that when the block is created, it binds to the value of both variables, which at that time WERE nil. Is this correct? I think I read that the new Squeak versions will correct this "problem"? (something like a new block-compiler...) Anyway, I reverted to following solution: (which works) | params | params := Dictionary new. html form: [html textInput value: 'type name here'; callback: [:name | params at: #name put: name]. html select list: userTypes; callback: [:userType | params at: #type put: userType]; labels: [:userType | userType asString]. html submitButton callback: [self addUserNamed: (params at:#name) withType: (params at:#type)]; value: 'Add New User'] Did I do the right thing? Or is there a better way? Thanks! Sebastian

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Seaside and Apache
by Bill Schwab 08 Oct '08

08 Oct '08

Philippe, I know the market share of IE. Of course, it was 95% 4 years ago, and continues to decline. Even so, I am pleased to see Seaside taking it seriously, as I might want to serve some of its users. For the most part, I offer enough functionality to a small enough group of users that they will use what I tell them to use, and will do what I tell them to configure it. However, it's all irrelevant once the institution buys that domain-wide certificate. Beyond that, I am very curious about your read on the location statements. Bill ====================== Philippe Marschall philippe.marschall at gmail.com 2008/10/8 Bill Schwab <BSchwab at anest.ufl.edu>: > Philippe, > > IE - what's that? :) The browser 80% of the people use. > Firefox 3 presents a slightly "alarmist" view of a Slightly? It displays a page that at first glance looks as if the server was down. Then you'll have to click four times to make it work. Cheers Philippe Wilhelm K. Schwab, Ph.D. University of Florida Department of Anesthesiology PO Box 100254 Gainesville, FL 32610-0254 Email: bschwab(a)anest.ufl.edu Tel: (352) 273-6785 FAX: (352) 392-7029

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Seaside and Apache
by Bill Schwab 08 Oct '08

08 Oct '08

Philippe, IE - what's that? :) Firefox 3 presents a slightly "alarmist" view of a self-signed cert, but I disagree that it prevents their use. In the end, it obediently creates an "exception," temporary or permanent, to recognize the certificate. Since I frequently develop and test on isolated machines, I will be using them for a long time. That said, we are investigating getting away from machine-specific certificates and blowing for one that covers our entire domain. If that happens, I will not need to self-sign on publicly visble machines. What are your thoughts on the configuration file I posted? Am I making sense with the locations? Do I need any specific ordering (most specific first), etc.? Bill ==================== Philippe Marschall philippe.marschall at gmail.com > After a few days of getting almost nothing (even in logs, which was > driving me nuts), I tried a different approach and had a self-signed > https Apache proxying Seaside. Beware of self-signed certificates. Firefox 3 and IE 7 go to great lengths preventing you to use them. Cheers Philippe Wilhelm K. Schwab, Ph.D. University of Florida Department of Anesthesiology PO Box 100254 Gainesville, FL 32610-0254 Email: bschwab(a)anest.ufl.edu Tel: (352) 273-6785 FAX: (352) 392-7029

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Seaside and Apache
by Bill Schwab 08 Oct '08

08 Oct '08

Hello all, After a few days of getting almost nothing (even in logs, which was driving me nuts), I tried a different approach and had a self-signed https Apache proxying Seaside. I will start to congratulate myself when I can reproduce it. Toward that end, I have been writing some truly ugly code to capture how to do some things. First, I have ported part of some OpenSSL tools I use with Dolphin, specifically the part the builds self-signed certificates. In short, I found recent versions of OpenSSL unbuildable with MinGW (please feel encouraged to prove me wrong on this one!), and the pre-built openssl.exe I found did not work properly on Win32. Since Apache now ships with mod_ssl and OpenSSL libraries, all I needed was a working openssl.exe. The Penguin to the rescue, so I altered the certificate factory to write a shell script; it could be integrated with OS Process to "just do it." Not fully tested yet, I also added some things to get Squeak/Pharo running as a service on Windows via the resource kit tools. So far, the service starts and then stops; advice on debugging that would be appreciated. Configuring Apache is still something of a mystery to me. I am content with having everything transported by SSL, and to force the use of the correct URLs (at least for now). Below please find some sample output from my evolving tool. The goal is to generate a nearly correct configuration based on the local host and registered Seaside applications. It found more than shown below, but please have a look at it to see if I am a mockery of the location statements. If something usable results from this, I will make it available. Bill # Apache-related concepts herein were shamelessly stolen from sources including: # http://lists.squeakfoundation.org/pipermail/seaside/2007-November/015181.ht… # http://leftshore.files.wordpress.com/2006/10/apacheandseaside.txt Listen 443 SSLEngine On SSLCertificateFile conf/ssl/wherever.cert SSLCertificateKeyFile conf/ssl/wherever.key SetEnvIf User-Agent ".*MSIE.*" nokeepalive ssl-unclean-shutdown ProxyRequests Off ProxyPreserveHost On <Proxy *> Order deny,allow Allow from none </Proxy> <Location /seaside/bibtex> Order deny,allow Allow from all ProxyPass http://localhost:8080/seaside/bibtex ProxyPassReverse http://localhost:8080/seaside/bibtex </Location> <Location /seaside/browse> Order deny,allow Allow from all ProxyPass http://localhost:8080/seaside/browse ProxyPassReverse http://localhost:8080/seaside/browse </Location> <Location /seaside/examples/counter> Order deny,allow Allow from all ProxyPass http://localhost:8080/seaside/examples/counter ProxyPassReverse http://localhost:8080/seaside/examples/counter </Location> Wilhelm K. Schwab, Ph.D. University of Florida Department of Anesthesiology PO Box 100254 Gainesville, FL 32610-0254 Email: bschwab(a)anest.ufl.edu Tel: (352) 273-6785 FAX: (352) 392-7029

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Dynamically changed lists and forms
by Andres Fortier 06 Oct '08

06 Oct '08

Hi list, I have the following situation: the user starts with an empty list, adds elements dynamically (using javascript) and the submits the form and I need to gather the values entered by the user. My first approach was something like: html form with:[ html select id: 'path_points'; size: 6; list: self points. html button value: 'Add Point'; bePush; onClick: 'addPoint();'. html submitButton callback: [self addPath]; text: 'Add Path'. ]. where: function addPoint() { var parent = document.getElementById("path_points"); var latVal = document.getElementById("newPointLat").value; var longVal = document.getElementById("newPointLong").value; var point = latVal + "," + longVal; var newOpt = document.createElement("option"); newOpt.text = point; newOpt.value = point; parent.options.add(newOpt); } the function works ok (at least I can see the elemnts being added to the list). However when the #addPath message is called as the result of submitting the form the collection of points is empty. Could anybody tell me what am I doing wrong or what am I missing? Thanks in advance, Andrés

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[Re] Some progress
by Bill Schwab 06 Oct '08

06 Oct '08

John, That is helpful. I have read elsewhere about avoiding rewrite in Seaside setups, and will do some searching with that in mind. After a couple of tries, I turned up an exampled you posted earlier (see below). My (perhaps errant) assumption has been that the rewrite rules were needed to fix up the protocol. Any comments on whether the virtual host below is/can/cannot be secure would be appreciated. Thanks, Bill <VirtualHost *:80> #I've removed web address, ServerName xxx.xxx.xxx #normally this would be a domain #such as www.google.com ProxyRequests Off ProxyPreserveHost On <Location /files> ProxyPass http://127.0.0.1:9090/seaside/files/FVFiles/ ProxyPassReverse http://127.0.0.1:9090/seaside/files/FVFiles/ </Location> <Location /images> ProxyPass ! </Location> <Location /tinymce> ProxyPass ! </Location> <Location /> ProxyPass http://127.0.0.1:9091/seaside/fv/ ProxyPassReverse http://127.0.0.1:9091/seaside/fv/ </Location> </VirtualHost> Wilhelm K. Schwab, Ph.D. University of Florida Department of Anesthesiology PO Box 100254 Gainesville, FL 32610-0254 Email: bschwab(a)anest.ufl.edu Tel: (352) 273-6785 FAX: (352) 392-7029

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Color picker?
by Andres Fortier 06 Oct '08

06 Oct '08

Hi list, I'm finishing a set of examples for using the StaticGoogleMaps component and a color picker would be nice to have, Is something like that already implemented in seaside? there is an example in the seaside page that goes: changeBackgroundColor |color| color := self call: ColorPicker new. blog backgroundColor: color but I can't find the ColorPicker class in my image (VW 7.6). Any help would be really appreciated. -- Cheers, Andrés

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Some progress
by Bill Schwab 06 Oct '08

06 Oct '08

Hello all, My plan is to use secure servers even in testing. This particular Apache installation is not yet cooperating, but I am gradually tracking down the problems. Either the current stumbling block is not related to rewrites, or my rewrite logging is not working. At some point, I expect to hit snags with Seaside's configuration. I have the book, and recall mention of the base URLs needing to be set. Do you any of you script the setup? My goal is to have something along the lines of ConfigureSeaside application:'something' development:false on:'here.there.net' ssl:true. The configuration part of Seaside is impressive, but I suspect a good script would be easier to use and less error prone. Any examples that you have working and don't mind sharing would be appreciated. Bill Wilhelm K. Schwab, Ph.D. University of Florida Department of Anesthesiology PO Box 100254 Gainesville, FL 32610-0254 Email: bschwab(a)anest.ufl.edu Tel: (352) 273-6785 FAX: (352) 392-7029

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Apache configuration
by Bill Schwab 04 Oct '08

04 Oct '08

Hello all, I am struggling a little with Apache and rewrite rules; I generally expect a hazing period with anything new, and this is about right. It would be nice to have the whole thing simpler than it is, largely because I fear missing something and leaving a gaping whole for hackers. Many posts and blogs insist the configuration is in fact easy to do, even going so far as to offer sample files. Often there are warnings about parts of the configuration that are beyond the scope of the post - fair enough. Case in point: see http://lists.squeakfoundation.org/pipermail/seaside/2007-November/015167.ht… Quoting it, "Here's the modified httpd.conf file to run Fred:". See text below for easy reference. Now for my dumb question of the week: is that the entire configuation file, as in put that in place of httpd.conf and the thing runs? Clearly changes would be required, but if things truly can be that simple, it seems as though one could create a largely "relocatable" config file, and/or some Smalltalk code to write one to meet specs. I have tried such simple files w/o success, and cannot easily tell whether the file is missing parts, or if the parts are buggy. Any ideas? Is it really as simple as indicated below?? Bill # "Stolen" from above-referenced archived message :) LoadModule proxy_module /usr/lib/apache2/modules/mod_proxy.so LoadModule proxy_http_module /usr/lib/apache2/modules/mod_proxy_http.so LoadModule rewrite_module /usr/lib/apache2/modules/mod_rewrite.so LoadModule ssl_module /usr/lib/apache2/modules/mod_ssl.so ServerName www.goodsexnetwork.com NameVirtualHost 192.168.1.101:80 <virtualhost 192.168.1.101:80> ServerName www.goodsexnetwork.com RewriteEngine on ProxyRequests off DocumentRoot /var/www RewriteCond %{DOCUMENT_ROOT}/%{REQUEST_FILENAME} !-f RewriteRule ^/(.*)$ https://%{SERVER_NAME}/$1 [L,R] </virtualhost> NameVirtualHost 192.168.1.101:443 <virtualhost 192.168.1.101:443> ServerName www.goodsexnetwork.com RewriteEngine on ProxyRequests off ProxyPreserveHost on SSLEngine on SSLCertificateFile /etc/apache2/ssl/apache.pem DocumentRoot /var/www/ssl ProxyPass /seaside/fred http://localhost:9090/seaside/fred ProxyPassReverse /seaside/fred http://localhost:9090/seaside/fred RewriteRule ^/$ http://localhost:9090/seaside/fred/$1 [P,L] </virtualhost> Wilhelm K. Schwab, Ph.D. University of Florida Department of Anesthesiology PO Box 100254 Gainesville, FL 32610-0254 Email: bschwab(a)anest.ufl.edu Tel: (352) 273-6785 FAX: (352) 392-7029

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[Question] How do I use Pier as a Seaside component?
by hhs＠lexdb.net 04 Oct '08

04 Oct '08

Dear all I would like to use a Pier wiki as a Seaside component as Lukas Renggli suggested in http://lists.squeakfoundation.org/pipermail/squeak-dev/2008-October/131787.… > I suggest that you use Pier. I do that for many of my projects. Pier > can be easily embedded into any application, as well as you can embed > any application into Pier. For simple wikis it might be a bit overkill > to have to load the whole code-base that is more a CMS, so it would > probably be worthwhile to have a simple Seaside component that just > reuses the document model. The code I would like to use (Pseudo class and method names): myModel := PierStructure on: (AFileDirectory on: 'S:\wikiDirectoryWithACollectionOfTextFilesInWikiSyntax'. myPierComponent := PierSubclassOfWAComponent on: myModel. May I ask for help replacing this pseudo-code with actual code which does the job. In addition I would like to have as well myModel exportContentAsTextFileInWikiSyntaxToDirectory: aDirectorySpecification myModel exportContentAsStaticHTMLToDirectory: anotherDirectorySpecification and to create the model in the first place myModel := PierStructure on: (AFileDirectory on: 'S:\wikiDirectoryWithACollectionOfStaticHTMLfiles'. Thank you in advance for all hints and contributions Hannes Hirzel P.S. I have installed Pier-Seaside version 1.0.16.272 (it is the latest version available in the Squeak 3.10.2 "Universe" repository as of today). Utilities classCategoriesStartingWith: 'Pier' gives #(#'Pier-Model-Core' #'Pier-Model-Magritte' #'Pier-Model-Kernel' #'Pier-Model-Persistence' #'Pier-Model-Structure' #'Pier-Model-Command' #'Pier-Model-Document' #'Pier-Model-Exception' #'Pier-Model-Visitor' #'Pier-Model-Utilities' #'Pier-Seaside-Core' #'Pier-Seaside-Libraries' #'Pier-Seaside-Magritte' #'Pier-Seaside-Model' #'Pier-Seaside-View' #'Pier-Seaside-Widgets' #'Pier-Seaside-Visitors') For me it is not easy to find the entry points. Pier-Seaside-Model for example seems to be a good candiate for creating a model. However there are only two classes there: PRComponent and PRSettingsCommand. The first one has no class documentation at all and the second one only a terse comment. So this seems to be a dead end. Then there is the class category Pier-Model-Document whith quite a number of classes: On particular class jumps into the eye: PierDocument. The documentation says 'I am the root of a document composite.' On the class side there are no examples. However browsing the class references leradis to PRpage>>defaultDocument with the code defaultDocument ^ super defaultDocument add: (PRParagraph new add: (PRText content: 'Edit this page ...'); yourself); yourself A possible useful track ....... P.S.2 I have loaded Pier 1.0.16 through the Squea 3.10.2 package "Universe". I am ready to update to 1.0.17 as it was announced on http://lists.squeakfoundation.org/pipermail/squeak-dev/2008-September/13163… How is this easily possible (as it is not yet in the Universe?)

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seaside October 2008