Question

Is it possible to make the value of the SCRIPTURL variable dependent on the current web?

I would like to use this to host two different domains ( http://www.stratego-language.org and http://www.program-transformation.org ) on the same TWiki. When switching from the Stratego web to the Transform web, the URL should change as well.

Since it is a set variable it cannot be changed in WebPreferences, but a mechanism like that would solve the problem.

To clarify the issue: When rendering a WikiName to HTML, a URL is produced that is relative to the SCRIPTURL variable, i.e., a reference to topic A on page B gets url

  % SCRIPTURL %/view/% WEB %/A

What I want to achieve is that a reference Web1.A on page Web2.B is rendered as

  % SCRIPTURLofWeb1 %/view/Web1/A

This would make it possible to switch between two domains while using the same TWiki.

It is now not possible to achieve this transparently, i.e., by making scripturl web dependent.

Incidentally, this feature would make it possible to link twikis on different hosts together by cheap wiki linking. If the name of Web1 is a shortcut for a twiki at a different site, then it is possible to transparently link to that twiki by just Web1.A.

• TWiki version: September 2001
• Web server: any
• Server OS: any
• Web browser: any
• Client OS: any

-- EelcoVisser - 31 Oct 2001

Answer:

Moved the question from the TWiki web to the support web.

Not exactly sure what you want to accomplish. May be you could define a new MYSCRIPTURL variable in your TWiki.TWikiPreferences, and then redefine it in your WebPreferences?

-- PeterThoeny - 31 Oct 2001

He wants to share the scripts between two virtual hosts and have TWiki retain in the script url the sitename of whatever site the user came from. Good question.

-- MartinCleaver - 05 Nov 2001

Actually, that turns out not to be a problem. Internal links are rendered relative to the $scriptUrlPath, i.e., /twiki/bin. However, the problem I want to solve is: how to change HTTP_HOST on switching from one web to another. The code in function internalLink in TWiki.pm generates the reference to theTopic in theWeb as follows:

$text .= "<a href=\"$scriptUrlPath/view$scriptSuffix/"
      .  "$theWeb/$theTopic\">$theLinkText<\/a>";

To solve my problem I need to insert some code in front of the url that indicates the webhost to use. the webhost should depend on theWeb. This somehow involves looking up in a table which host is associated to which web. I guess the trick is to do this efficiently. I'd happy if someone could point out how to do this in Perl.

-- EelcoVisser - 12 Nov 2001