ProgramsPlugin Dev forum

TODO

• run the programs in a safer environment
  • use Jail to chroot the execution
  • use a virtual pc (plex86, user-mode-linux, bochs?)
  • enforce other resource limits (mem, disk)
• distill parts of this plugin to a general Plugin.pm object
  • automatic cache of the initialization
• do a better check of the args
  • show if the needed program is installed
• write a doit script to use the defined programs as form actions

Interetsing concept. Some feedback:

• On "Patch Store.pm to get rid of <verbatim> tags during beforeSaveHandler": Plugins should have access the the whole topic content in the save callback. It is confusing to authors to get only part of the text. A Plugin should be aware of the VERBATIM

• The TopicClassification is not set, e.g. this Plugin is not yet listed in the Plugins list. When you make it listed, add your Interwiki signature in in the Plugins topic.

• The EDITTABLE button will fail if the Programs Plugin gets intalled on a site where the EditTablePlugin is not installed.

• The Plugin Info section could be moved to the end. That way it is easier to see the vital info.

-- PeterThoeny - 06 Sep 2003

I have written the doit script and updated the package.

Now you can use any tag as a form action, e.g.:

<form action="%SCRIPTURLPATH%/doit%SCRIPTSUFFIX%/%WEB%/%TOPIC%">
<input type="submit" value=" Get a fortune cookie! "/>
<input type="hidden" name="tag" value="FORTUNE" />
</form>

You set who has the rights of pressing the button writing a usual access rule:

• Set ALLOWTOPICFORTUNE = ...
• Set DENYTOPICFORTUNE = ...

PS

• I will remove the need of the patch to Store.pm (then it could be useful to define a TWiki::Func::removeVerbatim call)

-- AndreaSterbini - 06 Sep 2003

I tried installing this plugin, successfully applying the patch and using the modified Plugins.pm with the 19 JAN 2004 release beta. However, when I go to edit any topic, the script looses my authenticated username, so my signature in the edit page is blank, and upon saving, this error is displayed:

Topic save error
During save of file System.ProgramsPlugin an error was found by the version control system. Please notify your Theoretic administrator. 

/usr/bin/ci -q -l -m'none' -t-none -w'' /var/twiki/user/System/ProgramsPlugin.txt 2>&1
ci: missing author for -w option

Go back in your browser and save your changes locally. 

It is saved, however, because I can go back to the topic in the view script and see the changes have been made. Yes, I have put the 'doit' script as a 'valid-user' script in httpd.conf.

I'm hoping to find a solution to this, since I'm wanting to use it to automatically generate a cache of the dynamic content using PublishAddOn

-- AdamTheo - 09 Apr 2004