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From the website:
Croquet is a powerful open source software development environment for the creation and large-scale distributed deployment of multi-user virtual 3D applications and metaverses that are (1) persistent (2) deeply collaborative, (3) interconnected and (4) interoperable. The Croquet architecture supports synchronous communication, collaboration, resource sharing and computation among large numbers of users on multiple platforms and multiple devices.
It's all about tools, baby...
The Yahoo! User Interface (YUI) Library is a set of utilities and controls, written in JavaScript, for building richly interactive web applications using techniques such as DOM scripting, DHTML and AJAX. The YUI Library also includes several core CSS resources. All components in the YUI Library have been released as open source under a BSD license and are free for all uses.
More tools...
While writing this blog a small library of reusable components based on YUI has been started. The library was namespaced YAHOO.ext (short for Yahoo! UI extensions), and already has a few very useful classes that make day to day development with YUI much easier. All of the classes are well-documented and there are some examples of using them found in the posts on this blog. The code is of course free and has the same unrestrictive (BSD) license as Yahoo! UI.
More tools...
While writing this blog a small library of reusable components based on YUI has been started. The library was namespaced YAHOO.ext (short for Yahoo! UI extensions), and already has a few very useful classes that make day to day development with YUI much easier. All of the classes are well-documented and there are some examples of using them found in the posts on this blog. The code is of course free and has the same unrestrictive (BSD) license as Yahoo! UI.
It's all about tools, baby...
The Yahoo! User Interface (YUI) Library is a set of utilities and controls, written in JavaScript, for building richly interactive web applications using techniques such as DOM scripting, DHTML and AJAX. The YUI Library also includes several core CSS resources. All components in the YUI Library have been released as open source under a BSD license and are free for all uses.
Cookie based web authentication and single sign on system designed for largish intranets under a single domain where many people run their own webservers (and you don't trust them all much).
On first connection, an untrusted webserver redirects new requests for restricted pages to the idcheck server (to be authenticated). The idcheck server takes and checks the users credentials and, if successful, redirects the users browser back to the page they requested. As it redirects, the server installs a private cookie (scoped only for the idcheck webserver) and a second cookie that acts as a session cookie for the untrusted webserver (which is checked for validity, over http against the idcheck server) when downloading subsequent pages.
When the user accesses another webserver that also has idcheck restricted pages he does not need to enter his credentials again because of the private idcheck cookie indicates that he has already authenticated and so can bypass the login form. This provides a single sign on environment for multiple webservers in a single domain..
KinoSearch is a loose port of the Java search engine library Apache Lucene, written in Perl and C. The archetypal application is website search, but it can be put to many different uses.
Features
- Extremely fast and scalable - can handle millions of documents
- Incremental indexing (addition/deletion of documents to/from an existing index).
- Full support for 12 Indo-European languages.
- Support for boolean operators AND, OR, and AND NOT; parenthetical groupings, and prepended +plus and -minus
- Algorithmic selection of relevant excerpts and highlighting of search terms within excerpts
- Highly customizable query and indexing APIs
- Phrase matching
- Stemming
- Stoplists
Catalyst is an elegant web application framework, extremely flexible yet extremely simple. It's similar to Ruby on Rails, Spring (Java), and Maypole, upon which it was originally based.
MVC
Catalyst follows the Model-View-Controller (MVC) design pattern, allowing you to easily separate concerns, like content, presentation, and flow control, into separate modules. This separation allows you to modify code that handles one concern without affecting code that handles the others. Catalyst promotes the re-use of existing Perl modules that already handle common web application concerns well.
Here's how the M, V, and C map to those concerns, with examples of well-known Perl modules you may want to use for each.
- Model
Access and modify content (data). DBIx::Class, Class::DBI, Plucene, Net::LDAP...
- View
Present content to the user. Template Toolkit, Mason, HTML::Template...
- Controller
Control the whole request phase, check parameters, dispatch actions, flow control. Catalyst itself!
If you're unfamiliar with MVC and design patterns, you may want to check out the original book on the subject, Design Patterns, by Gamma, Helm, Johnson, and Vlissides, also known as the Gang of Four (GoF). Many, many web application frameworks are based on MVC, including all those listed above.