Forum OpenACS Q&A: Re: package name in the url

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2: Re: package name in the url (response to 1)
Posted by Gustaf Neumann on 04/11/07 02:46 PM
This can be achieved via a .vuh (virtual url handler) file.
Here is an example for achieving this for xowiki
http://alice.wu-wien.ac.at:8000/xowiki-doc/#package-prefix
You will have to alter this file to be useful for other packages.
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3: Re: package name in the url (response to 2)
Posted by robert parker on 04/12/07 02:51 PM
Hi Gustaf

Sorry but I'm still not able to get this working. I've read the /doc/tutorial-vuh.html and can see how this works for re-direction within the same package.

Does the request processor scan all vuh files in all packages for a matching page to serve?

Does "http://hostname/admin"; use a .vuh file to serve the page "/packages/acs-subsite/www/admin/index.adp" ? If so which vuh file specifies this redirection?

Do I need to set up a watch so that changes to .vuh files are detected?

Thanks, Robert

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4: Re: package name in the url (response to 3)
Posted by Gustaf Neumann on 04/12/07 04:09 PM
The magic is in the request processor and is - when looking at the details - quite tricky. The .vuh files are called in situations, where a path could not be resolved by other means (from e.g. files and the site node entries).

use find YOUR_INSTALLATION/openacs-4/packages/acs* -name index.vuh to see, what .vuh files are in use in your installation.

Here is a simple example of an index.vuh file to test cases, when the vuh file is called. Save it under openacs-4/openacs-4/www/index.vuh" and then try "http://hostname/schnabbelbrnft";

util_user_message -message "Hey, you called [ns_conn url]"
if {[ns_conn url] ne "/"} {
  ad_returnredirect /
} else {
 rp_internal_redirect /packages/acs-subsite/www/index.tcl
}

You can redirect to every package you like, as in the xowiki-case to an instance /xowiki.

The .vuh files don't have to be watched, they are sourced upon requests.