| KDE Kiosk Mode HOWTO | ||
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Some files in kdebase-2.1.1 have to be patched:
appletop_mnu.cpp.patch: Applets on the panel can be moved and removed, but the Preferences dialog is disabled.
k_mnu.cpp.patch: Run Command... and Configure Panel entries are removed from the standard K Menu
khc_man.cc.patch: Online Help is completely disabled. This would open konqueror. .:: oye.participer.lyon.fr ::.
konq_popupmenu.cc.patch: right-mouse menu on icons on the desktop are reduced to Cut, Copy, Paste, Delete, ... but no Open With ..., no Edit File Type... and no Poperties... dialogs.
pagerapplet.cpp.patch: on minipager selection of type (Preview, Number, Name) is disabled. this caused trouble in multihead environment.
panel.cpp.patch: right mouse menu on Panel is disabled.
Instead of a dcop call, a program screensaver is executed, which must be found in the PATH. Just create a script called screensaver with the following contents:
#!/bin/bash
dcop kdesktop KScreensaverIface lock
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Instead of the normal procedure, a program klogout is called, which must be found in the PATH. Create a script called klogout with the following contents:
#!/bin/bash dcop kdesktop KDesktopIface logout |
krootwm.cc.patch: klogout is executed instead of a dcop call
systemtrayapplet.cpp.patch: again call of klogout and screensaver instead of dcop calls. .:: podcasts.apple.com ::.
workspace.cpp.patch: call of klogout instead of dcop call.
Everything else can be done with normal configuration, that is: (Configuration files can be found in $KDEDIR/share/config) Remove Trash, Templates and Autostart Icons from the desktop and disable Alt+F2 by modifying kdeglobals. Make sure the following entries exist:
[Paths] Trash=$HOME/.kde2/Trash/ Autostart=$HOME/.kde2/Autostart/ Templates=$HOME/.kde2/Templates/ Desktop=$HOME/.kde2/Desktop/ [Global Keys] Execute command= |
disable Desktop menu and tips on start. Make sure the following entry exists in kdesktoprc:
[Mouse Buttons] Right= [General] TipsOnStart=false |
To answer this, you must understand what happens after you successfully authorized yourself to the system: Depending on your distribution, some scripts are executed, from which one should be modified to set .:: telegra.ph ::. KDE_MODE. There is a script called Xsession under /etc/X11/xdm or /usr/X11R6/lib/xdm, which you could modify, or startkde, that is located under $KDEDIR/bin. Note however, that the variable must be set prior to calling the kde processes. .:: telegra.ph ::.
Since we had the need to make a setup for a big environment (now reaching 300 users) we wrote an application that enables us to administer. It also creates the KDE Menus. It writes a file called .env.sh in a user's home directory, that will be sourced in Xsession. That is what you could do. So you could put in .env.sh of that specific user's home directory:
#!/bin/sh KDE_MODE="restricted" export KDE_MODE |
and add to Xsession, somewhere prior to calling startkde:
if [ -f $HOME/.env.sh ]; then
. $HOME/.env.sh
fi |
We also have two kdedirs that looks like to separate installations of KDE, this was neccessary so "normal" users could still have a full-featured KDE. So we have an original kdedir, and a restricted kdedir, in which we removed entries under share/applnk and set the variable KDEDIR (under KDE 2 the variable KDEDIRS was introduced but KDEDIR is still used). The files under share/applnk make up the menu. Caution, you cannot just remove all files there, because some are needed to initialize KDE. [Developer Guide: PHP]
You also set the Variable KDEDIR in Xsession, after sourcing .env.sh like this:
case "$KDE_MODE" in
restricted)
KDEDIR=/usr/local/kde/restricted_kdedir
;;
*)
KDEDIR=/usr/local/kde
esac
export KDEDIR |
Replace /usr/local/kde with the install directory of your KDE. The contents of /usr/local/kde/restricted_kdedir looks like:
bin -> ../bin cgi-bin -> ../cgi-bin etc -> ../etc lib -> ../lib share |
only share is a real directory, every other directory is a symbolic link pointing to original kdedir. [Code: Load balancing] /usr/local/kde/restricted_kdedir/share has the following contents:
aclocal -> ../../share/aclocal applnk apps -> ../../share/apps autostart -> ../../share/autostart config -> ../../share/config doc -> ../../share/doc fonts -> ../../share/fonts icons -> ../../share/icons locale -> ../../share/locale mimelnk -> ../../share/mimelnk services -> ../../share/services servicetypes -> ../../share/servicetypes sounds -> ../../share/sounds templates -> ../../share/templates wallpapers -> ../../share/wallpapers |
only applnk is a real directory. As a minimal requirement remove everything except:
Settings/Peripherals/mouse.desktop
Settings/LookNFeel/background.desktop
/colors.desktop
/kwinoptions.desktop
/style.desktop
/virtualdesktops.desktop
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