Prerequisites and assumptions  

The following conditions should be met in order to have the best results while using the script

• We assume that your machine is connected to internet while performing the installation.  This is needed as additional packages and software needs to be downloaded and installed on your Ubuntu machine
• The script runs against a supported Operating system (Debian Distribution)
• MATE Desktop & Gnome Desktop is supported (Currently, testing other Desktop interfaces)
• To have sound redirection, computer needs to have sound card available

#!/bin/bash
#####################################################################################################
# Script_Name : debian-xrdp-installer-1.0.sh
# Description : Perform xRDP installation on Debian Distribution 
# Date : May 2021
# written by : Griffon
# WebSite :https://www.c-nergy.be - https://www.c-nergy.be/blog
# Version : 1.0 
# History : 1.0   -  re-write std vs custom mode installation detection
#         : 0.9   -  Cleanup code and validate it against debian OS 
#         : 0.8   -  Adding basic error handling when installing additional packages 
#         : 0.7   -  Adding Prep_OS Function (might be use later to support more version)
#         : 0.6   -  Change fix_theme function - new color scheme and custom logo
#         : 0.5   -  add Debian Source url for custom install 
#         : 0.4   -  Changed code to detect if gnome tweaks needs to be installed or not
#         : 0.3   -  Adding variable for Desktop interface detection (future usage)
#         : 0.2   -  re-write code OS detection and supported version 
#         : 0.1   -  Forking original xrdp-installer-script      
# Disclaimer : Script provided AS IS. Use it at your own risk....
#              You can use this script and distribute it as long as credits are kept 
#              in place and unchanged   
####################################################################################################
#---------------------------------------------------#
# Variables and Constants                           #
#---------------------------------------------------#

#--Automating Script versioning 
ScriptVer="1.0"

#--Detecting  OS Version 
version=$(lsb_release -sd)
codename=$(lsb_release -sc)
Release=$(lsb_release -sr)

#--Detecting variable related to Desktop interface and Directory path (to support more desktop interfaces at a later stage) 
DesktopVer="$XDG_CURRENT_DESKTOP" 
SessionVer="$GNOME_SHELL_SESSION_MODE"
ConfDir="$XDG_DATA_DIRS"

#Define Dwnload variable to point to ~/Downloads folder of user running the script
Dwnload=$(xdg-user-dir DOWNLOAD)

#Initialzing other variables
modetype="unknown"

#--------------------------------------------------------------------------#
# -----------------------Function Section - DO NOT MODIFY -----------------#
#--------------------------------------------------------------------------#

#---------------------------------------------------#
# Function 0  - check for supported OS version  ....#
#---------------------------------------------------#

check_os()
{
echo
/bin/echo -e "\e[1;33m   |-| Detecting Distribution version        \e[0m"
case $version in
 *"Debian"*)
  /bin/echo -e "\e[1;32m       |-| Debian Version : $version\e[0m"
  ;;
 
*)
    /bin/echo -e "\e[1;31m  !--------------------------------------------------------------!\e[0m"
    /bin/echo -e "\e[1;31m  ! Your system is not running a supported version               !\e[0m"
    /bin/echo -e "\e[1;31m  ! The script has been tested only on the following versions    !\e[0m"
    /bin/echo -e "\e[1;31m  ! Debian Distribution running MATE Desktop or Gnome            !\e[0m"
    /bin/echo -e "\e[1;31m  ! The script is exiting...                                     !\e[0m"             
    /bin/echo -e "\e[1;31m  !--------------------------------------------------------------!\e[0m"
    echo
    exit
    ;;
esac
echo
}

#---------------------------------------------------#
# Function 1  - check xserver-xorg-core package....
#---------------------------------------------------#

check_hwe()
{
echo
/bin/echo -e "\e[1;33m   |-| Detecting xserver-xorg-core package installed \e[0m"
xorg_no_hwe_install_status=$(dpkg-query -W -f ='${Status}\n' xserver-xorg-core 2>/dev/null)
xorg_hwe_install_status=$(dpkg-query -W -f ='${Status}\n' xserver-xorg-core-hwe-$Release 2>/dev/null) 

if [[ "$xorg_hwe_install_status" =~ \ installed$ ]]
then
#  hwe version is installed on the system
/bin/echo -e "\e[1;32m  |-| xorg package version: xserver-xorg-core-hwe \e[0m"
HWE="yes"
elif [[ "$xorg_no_hwe_install_status" =~ \ installed$ ]]
then
/bin/echo -e "\e[1;32m  |-| xorg package version: xserver-xorg-core \e[0m"
HWE="no"
else
/bin/echo -e "\e[1;31m  |-| Error checking xserver-xorg-core flavour \e[0m"
exit 1
fi
}

PrepOS()

{
if [[ *"$version"* = *"Debian"*  ]]
then
 #Disable cdrom source.list to avoid prompt during install # DEBIAN SPECIFIC
 sudo sed -i 's/deb cdrom:/#deb cdrom:/' /etc/apt/sources.list
 sudo apt-get update
fi
}

############################################################################
# INSTALLATION MODE : STANDARD
############################################################################

#---------------------------------------------------#
# Function 2  - Install xRDP Software....
#---------------------------------------------------#

install_xrdp()
{
echo
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;33m   !   Installing XRDP Packages...Proceeding...  !\e[0m"
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
echo

if [[ $HWE = "yes" ]] && [[ "$version" = *"Ubuntu 18.04"* ]];
then
    sudo apt-get install xrdp -y
    sudo apt-get install xorgxrdp-hwe-18.04
else
    sudo apt-get install xrdp -y
fi
}

############################################################################
# ADVANCED INSTALLATION MODE : CUSTOM INSTALLATION
############################################################################

#---------------------------------------------------#
# Function 3 - Install Prereqs...
#---------------------------------------------------#

install_prereqs() {
echo
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;33m   !   Installing PreReqs packages..Proceeding.  ! \e[0m"
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
echo

if [[ *"$version"* = *"Debian"*  ]]
then

#Debian Specific - add in source backport package to download necessary packages - Debian Specific
sudo apt-get install -y software-properties-common
sudo apt-add-repository -s -y 'deb http://deb.debian.org/debian '$codename'-backports main'

sudo apt-get update 

#--Needed to be created manually or compilation fails 
sudo mkdir /usr/local/lib/xrdp/
fi
#--End Debian Specific --# 

#Install packages
sudo apt-get -y install git
sudo apt-get -y install libx11-dev libxfixes-dev libssl-dev libpam0g-dev libtool libjpeg-dev flex bison gettext autoconf libxml-parser-perl libfuse-dev xsltproc libxrandr-dev python-libxml2 nasm fuse pkg-config git intltool checkinstall
echo

#-- check if no error during Installation of missing packages

if [ $? -eq 0 ]
then 
/bin/echo -e "\e[1;33m   |-| Preprequesites installation successfully       \e[0m"
else 
echo
/bin/echo -e "\e[1;31m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;31m   !   Error while installing prereqs            !\e[0m"
/bin/echo -e "\e[1;31m   !   The Script is exiting....                 !\e[0m"
/bin/echo -e "\e[1;31m   !---------------------------------------------!\e[0m"
exit
fi

#-- check if hwe stack needed or not 
if [ $HWE = "yes" ];
then
    # - xorg-hwe-* to be installed
    /bin/echo -e "\e[1;32m       |-| xorg package version: xserver-xorg-core-hwe-$Release \e[0m"
    sudo apt-get install -y xserver-xorg-dev-hwe-$Release xserver-xorg-core-hwe-$Release    
else
    #-no-hwe
    /bin/echo -e "\e[1;32m       |-| xorg package version: xserver-xorg-core \e[0m"
    echo
    sudo apt-get install -y xserver-xorg-dev xserver-xorg-core
fi

}

#---------------------------------------------------#
# Function 4 - Download XRDP Binaries... 
#---------------------------------------------------#

get_binaries() { 
echo
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;33m   !   Download xRDP Binaries.......Proceeding.  ! \e[0m"
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
echo

#cd ~/Downloads
Dwnload=$(xdg-user-dir DOWNLOAD)

cd $Dwnload
#Check if xrdp folder already exists.  if yes; delete it and download again in order to get latest version

if [ -d "$Dwnload/xrdp" ] 
then
    sudo rm -rf xrdp
fi

#Check if xorgxrdp folder already exists.  if yes; delete it and download again in order to get latest version
if [ -d "$Dwnload/xorgxrdp" ] 
then
    sudo rm -rf xorgxrdp
fi

## -- Download the xrdp latest files
echo
/bin/echo -e "\e[1;32m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;32m   !  Preparing download xrdp package            !\e[0m"
/bin/echo -e "\e[1;32m   !---------------------------------------------!\e[0m"
echo
git clone https://github.com/neutrinolabs/xrdp.git
echo
/bin/echo -e "\e[1;32m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;32m   !  Preparing download xorgxrdp package        !\e[0m"
/bin/echo -e "\e[1;32m   !---------------------------------------------!\e[0m"
echo
git clone https://github.com/neutrinolabs/xorgxrdp.git
}

#---------------------------------------------------#
# Function 5 - compiling xrdp... 
#---------------------------------------------------#

compile_source() { 
echo
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;33m   !   Compile xRDP packages .......Proceeding.  !\e[0m"
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
echo

cd $Dwnload/xrdp

#Get the release version automatically
pkgver=$(git describe  --abbrev=0 --tags  | cut -dv -f2)
sudo ./bootstrap
sudo ./configure --enable-fuse --enable-jpeg --enable-rfxcodec
sudo make

#-- check if no error during compilation 
if [ $? -eq 0 ]
then 
/bin/echo -e "\e[1;33m   |-| Make Operation Completed successfully       \e[0m"
else 
echo
/bin/echo -e "\e[1;31m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;31m   !   Error while Executing make                !\e[0m"
/bin/echo -e "\e[1;31m   !   The Script is exiting....                 !\e[0m"
/bin/echo -e "\e[1;31m   !---------------------------------------------!\e[0m"
exit
fi
sudo checkinstall --pkgname=xrdp --pkgversion=$pkgver --pkgrelease=1 --default

#xorgxrdp package compilation
echo
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;33m   !   Compile xorgxrdp packages....Proceeding.  !\e[0m"
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
echo

cd $Dwnload/xorgxrdp

#Get the release version automatically
pkgver=$(git describe  --abbrev=0 --tags  | cut -dv -f2)
sudo ./bootstrap 
sudo ./configure 
sudo make

# check if no error during compilation 
if [ $? -eq 0 ]
then 
echo
/bin/echo -e "\e[1;33m   |-| Make Operation Completed successfully       \e[0m"
echo
else 
echo
/bin/echo -e "\e[1;31m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;31m   !   Error while Executing make                !\e[0m"
/bin/echo -e "\e[1;31m   !   The Script is exiting....                 !\e[0m"
/bin/echo -e "\e[1;31m   !---------------------------------------------!\e[0m"
exit
fi

sudo checkinstall --pkgname=xorgxrdp --pkgversion=1:$pkgver --pkgrelease=1 --default

}

#---------------------------------------------------#
# Function 6 - create services .... 
#---------------------------------------------------# 

enable_service() {
echo
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;33m   !   Creating xRDP services.......Proceeding.  !\e[0m"
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
echo 
sudo systemctl daemon-reload
sudo systemctl enable xrdp.service
sudo systemctl enable xrdp-sesman.service
sudo systemctl start xrdp
}

############################################################################
# COMMON FUNCTIONS - WHATEVER INSTALLATION MODE - Version Specific !!!
############################################################################

#---------------------------------------------------#
# Function 7 - Install Gnome Tweak Tool.... 
#---------------------------------------------------#

#If Gnome is the Desktop, install Tweaks utilty (optional)
install_tweak() 
{
if [ "$DesktopVer" = "MATE" ] || [ "$DesktopVer" = "KDE" ];
then
echo
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;33m   !   No Gnome Tweaks Needed...Proceeding...    !\e[0m"
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
else
echo
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;33m   !   Installing Gnome Tweak...Proceeding...    !\e[0m"
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
echo
    sudo apt-get install gnome-tweak-tool -y
fi
}

#--------------------------------------------------------------------#
# Fucntion 8 - Allow console Access ....(seems optional in u18.04)
#--------------------------------------------------------------------#

allow_console() 

{
echo
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;33m   !   Granting Console Access...Proceeding...   !\e[0m"
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
echo
# Checking if Xwrapper file exists
if [ -f /etc/X11/Xwrapper.config ]
then
sudo sed -i 's/allowed_users=console/allowed_users=anybody/' /etc/X11/Xwrapper.config
else
    sudo bash -c "cat >/etc/X11/Xwrapper.config" <<EOF
    allowed_users=anybody
EOF
fi
}

#---------------------------------------------------#
# Function 9 - create policies exceptions .... 
#---------------------------------------------------#

create_polkit()
{
echo
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;33m   !   Creating Polkit File...Proceeding...      !\e[0m"
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
echo

#All Ubuntu version
sudo bash -c "cat >/etc/polkit-1/localauthority/50-local.d/45-allow.colord.pkla" <<EOF
[Allow Colord all Users]
Identity=unix-user:*
Action=org.freedesktop.color-manager.create-device;org.freedesktop.color-manager.create-profile;org.freedesktop.color-manager.delete-device;org.freedesktop.color-manager.delete-profile;org.freedesktop.color-manager.modify-device;org.freedesktop.color-manager.modify-profile
ResultAny=no
ResultInactive=no
ResultActive=yes
EOF

if [[ "$version" = *"Ubuntu 20.10"* ]] || [[ "$version" = *"Ubuntu 20.04"* ]] || [[ "$version" = *"Ubuntu 21.04"* ]] || [[ "$version" = *"Pop!_OS 20.04"* ]] || [[ "$version" = *"Pop!_OS 20.10"* ]] || [[ "$version" = *"Pop!_OS 21.04"* ]] || [[ "$version" = *"Debian"* ]];
then
sudo bash -c "cat >/etc/polkit-1/localauthority/50-local.d/46-allow-update-repo.pkla" <<EOF
[Allow Package Management all Users]
Identity=unix-user:*
Action=org.freedesktop.packagekit.system-sources-refresh;org.freedesktop.packagekit.system-network-proxy-configure
ResultAny=yes
ResultInactive=yes
ResultActive=yes
EOF
fi
}

#---------------------------------------------------#
# Function 10 - Fixing Theme and Extensions .... 
#---------------------------------------------------#

fix_theme()
{
echo
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;33m   !   Fix Theme and extensions...Proceeding...  !\e[0m"
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
echo

# Checking if script has run already 

if [ -f /etc/xrdp/startwm.sh.griffon ]
then
sudo rm /etc/xrdp/startwm.sh
sudo mv /etc/xrdp/startwm.sh.griffon /etc/xrdp/startwm.sh
fi 

#Backup the file before modifying it
sudo cp /etc/xrdp/startwm.sh /etc/xrdp/startwm.sh.griffon
echo
sudo sed -i "4 a #Improved Look n Feel Method\ncat <<EOF > ~/.xsessionrc\nexport GNOME_SHELL_SESSION_MODE=$SessionVer\nexport XDG_CURRENT_DESKTOP=$DesktopVer\nexport XDG_DATA_DIRS=$ConfDir\nEOF\n" /etc/xrdp/startwm.sh
echo
}

#------------------------------------------------------------------#
# Function 11 - Enable Multi connection Support (Experimental) .... #
#------------------------------------------------------------------#

multi_conn()
{
echo
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;33m   ! Enable Multi connection Trick ..Proceeding. ! \e[0m"
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"  
echo
#Fix Local & Remote session connections

if [ -d "/usr/local/share/xrdp" ] 
then
    #Custom installation detected 
    sudo sed -i "/wm_start()/i#Allow two sessions (local and remote)\nunset DBUS_SESSION_BUS_ADDRESS\nunset XDG_RUNTIME_DIR\n" /etc/xrdp/startwm.sh
else
    sudo sed -i "/test -x/i#Allow two sessions (local and remote)\nunset DBUS_SESSION_BUS_ADDRESS\nunset XDG_RUNTIME_DIR\n" /etc/xrdp/startwm.sh
fi
}

#---------------------------------------------------#
# Function 12 - Enable Sound Redirection .... 
#---------------------------------------------------#

enable_sound()
{
echo
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
/bin/echo -e "\e[1;33m   !   Enabling Sound Redirection...             !\e[0m"
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m"
echo
pulsever=$(pulseaudio --version | awk '{print $2}')

# Step 2 - Install Some PreReqs
sudo apt-get install libconfig-dev -y
sudo apt-get install git libpulse-dev autoconf m4 intltool build-essential dpkg-dev libtool libsndfile-dev libcap-dev -y libjson-c-dev
sudo apt build-dep pulseaudio -y

# Step 3 -  Download pulseaudio source in /tmp directory - Do not forget to enable source repositories -debian
cd /tmp
sudo apt source pulseaudio=$pulsever

# Step 4 - Compile
cd /tmp/pulseaudio-$pulsever
sudo ./configure

# step 5 - Create xrdp sound modules
sudo git clone https://github.com/neutrinolabs/pulseaudio-module-xrdp.git
cd pulseaudio-module-xrdp
sudo ./bootstrap 
sudo ./configure PULSE_DIR="/tmp/pulseaudio-$pulsever"
sudo make

#Step 6 copy files to correct location (as defined in /etc/xrdp/pulse/default.pa)
cd /tmp/pulseaudio-$pulsever/pulseaudio-module-xrdp/src/.libs
sudo install -t "/var/lib/xrdp-pulseaudio-installer" -D -m 644 *.so
sudo install -t "/usr/lib/pulse-$pulsever/modules" -D -m 644 *.so
echo

}

#---------------------------------------------------#
# Function 13 - Custom xRDP Login Screen .... 
#---------------------------------------------------#

custom_login()
{
echo 
/bin/echo -e "\e[1;33m   |-| Customizing xRDP login screen       \e[0m" 
Dwnload=$(xdg-user-dir DOWNLOAD)
cd $Dwnload
#chek if file exists if not - download it.... 
if [ -f "griffon_logo_xrdpd.bmp" ]
then
/bin/echo -e "\e[1;32m       |-| necessary file already available...skipping   \e[0m"
else
/bin/echo -e "\e[1;32m       |-| Downloading additional file...: logo_xrdp image   \e[0m"
wget http://www.c-nergy.be/downloads/griffon_logo_xrdpd.bmp
fi

#Check if script has run once...
if [ -f /etc/xrdp/xrdp.ini.griffon ]
then
sudo rm /etc/xrdp/xrdp.ini
sudo mv /etc/xrdp/xrdp.ini.griffon /etc/xrdp/xrdp.ini
fi 

#Backup file 
sudo cp /etc/xrdp/xrdp.ini /etc/xrdp/xrdp.ini.griffon

#Check where to copy the logo file
if [ -d "/usr/local/share/xrdp" ] 
then
    #Custom install 
    sudo cp griffon_logo_xrdpd.bmp /usr/local/share/xrdp
    sudo sed -i 's/ls_logo_filename=/ls_logo_filename=\/usr\/local\/share\/xrdp\/griffon_logo_xrdpd.bmp/g' /etc/xrdp/xrdp.ini
else
    #Std Install
    sudo cp griffon_logo_xrdpd.bmp /usr/share/xrdp
    sudo sed -i 's/ls_logo_filename=/ls_logo_filename=\/usr\/share\/xrdp\/griffon_logo_xrdpd.bmp/g' /etc/xrdp/xrdp.ini
fi

sudo sed -i 's/blue=009cb5/blue=dedede/' /etc/xrdp/xrdp.ini
sudo sed -i 's/#white=ffffff/white=dedede/' /etc/xrdp/xrdp.ini
sudo sed -i 's/#ls_title=My Login Title/ls_title=Remote Desktop for Linux/' /etc/xrdp/xrdp.ini
sudo sed -i 's/ls_top_window_bg_color=009cb5/ls_top_window_bg_color=27354D/' /etc/xrdp/xrdp.ini
sudo sed -i 's/ls_bg_color=dedede/ls_bg_color=ffffff/' /etc/xrdp/xrdp.ini
sudo sed -i 's/ls_logo_x_pos=55/ls_logo_x_pos=0/' /etc/xrdp/xrdp.ini
sudo sed -i 's/ls_logo_y_pos=50/ls_logo_y_pos=5/' /etc/xrdp/xrdp.ini
}

#---------------------------------------------------#
# Function 14 - Fix SSL Minor Issue .... 
#---------------------------------------------------#

fix_ssl() 
{ 
echo 
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m" 
/bin/echo -e "\e[1;33m   ! Fixing SSL Cert Issue ...                   !\e[0m" 
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m" 
echo
/bin/echo -e "\e[1;33m   |-| Checking Group membership ssl-cert        \e[0m" 
if id -Gn xrdp | grep ssl-cert 
then 
    /bin/echo -e "\e[1;32m       |-| xrdp is already member to ssl-cert...skipping   \e[0m"
else
    /bin/echo -e "\e[1;32m       |-| xrdp is not member to ssl-cert...Adding   \e[0m"
    sudo adduser xrdp ssl-cert 
fi
}

#---------------------------------------------------#
# Function 15 - Fixing env variables in XRDP .... 
#---------------------------------------------------#

fix_env()
{
/bin/echo -e "\e[1;33m   |-| Checking env variable settings       \e[0m" 

#Add this line to /etc/pam.d/xrdp-sesman if not present
if grep -Fxq "session required pam_env.so readenv=1 user_readenv=0" /etc/pam.d/xrdp-sesman 
   then
    /bin/echo -e "\e[1;32m       |-| settings for env. variable already set...   \e[0m"
   else
    /bin/echo -e "\e[1;32m       |-| Env. variable not set...Applying   \e[0m"
    sudo sed -i '1 a session required pam_env.so readenv=1 user_readenv=0' /etc/pam.d/xrdp-sesman
fi
}

#---------------------------------------------------#
# Function 16 - Removing XRDP Packages .... 
#---------------------------------------------------#

remove_xrdp()
{
echo 
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m" 
/bin/echo -e "\e[1;33m   ! Removing xRDP Packages...                   !\e[0m" 
/bin/echo -e "\e[1;33m   !---------------------------------------------!\e[0m" 
echo 

#remove the xrdplog file created by the script 
sudo rm /etc/xrdp/xrdp-installer-check.log

#----remove xrdp package
sudo systemctl stop xrdp
sudo systemctl disable xrdp
sudo apt-get autoremove xrdp -y
sudo apt-get purge xrdp -y

#---remove xorgxrdp
sudo systemctl stop xorgxrdp
sudo systemctl disable xorgxrdp

if [[ $HWE = "yes" ]] && [[ "$version" = *"Ubuntu 18.04"* ]];
then
    sudo apt-get autoremove xorgxrdp-hwe-18.04 -y 
    sudo apt-get purge xorgxrdp-hwe-18.04 -y
else
    sudo apt-get autoremove xorgxrdp -y 
    sudo apt-get purge xorgxrdp -y
fi

#---Cleanup files 

#Remove xrdp folder
if [ -d "$Dwnload/xrdp" ] 
then
    sudo rm -rf xrdp
fi

#Remove xorgxrdp folder
if [ -d "$Dwnload/xorgxrdp" ] 
then
    sudo rm -rf xorgxrdp
fi

#Remove custom xrdp logo file
if [ -f "$Dwnload/griffon_logo_xrdpd.bmp" ]
then
    sudo rm -f  "$Dwnload/griffon_logo_xrdpd.bmp"
fi
sudo systemctl daemon-reload
}

#---------------------------------------------------#
# Function 17 - Show Credits
#---------------------------------------------------#
sh_credits()
{
echo
/bin/echo -e "\e[1;36m   |----------------------------------------------------------------!\e[0m"
/bin/echo -e "\e[1;36m   | Installation Completed...Please test your xRDP configuration   !\e[0m" 
/bin/echo -e "\e[1;36m   | If Sound option selected, shutdown your machine completely     !\e[0m"
/bin/echo -e "\e[1;36m   | start it again to have sound working as expected               !\e[0m"
/bin/echo -e "\e[1;36m   |                                                                !\e[0m"
/bin/echo -e "\e[1;36m   | Credits : Written by Griffon - May 2021                        !\e[0m"
/bin/echo -e "\e[1;36m   |           www.c-nergy.be debian-xrdp-installer-v$ScriptVer.sh         !\e[0m"
/bin/echo -e "\e[1;36m   |           ver $ScriptVer                                              !\e[0m"
/bin/echo -e "\e[1;36m   |----------------------------------------------------------------!\e[0m"
echo

}

#---------------------------------------------------#
# SECTION FOR OPTIMIZING CODE USAGE...              #
#---------------------------------------------------#

install_common()
{
allow_console
create_polkit
fix_theme
fix_ssl
fix_env
}

install_custom()
{
install_prereqs
get_binaries
compile_source
enable_service
}

#--------------------------------------------------------------------------#
# -----------------------END Function Section             -----------------#
#--------------------------------------------------------------------------#
#--------------------------------------------------------------------------#
#------------                 MAIN SCRIPT SECTION       -------------------# 
#--------------------------------------------------------------------------#
#---------------------------------------------------#
# Script Version information Displayed              #
#---------------------------------------------------#

echo
/bin/echo -e "\e[1;36m   !-----------------------------------------------------------------!\e[0m"
/bin/echo -e "\e[1;36m   !   debian-xrdp-installer-$ScriptVer Script                              !\e[0m"
/bin/echo -e "\e[1;36m   !   Support Debian Distribution                                   !\e[0m"
/bin/echo -e "\e[1;36m   !   Written by Griffon - May 2021 - www.c-nergy.be              !\e[0m"
/bin/echo -e "\e[1;36m   !                                                                 !\e[0m"
/bin/echo -e "\e[1;36m   !   For Help and Syntax, type ./debian-xrdp-installer-$ScriptVer.sh -h    !\e[0m"
/bin/echo -e "\e[1;36m   !                                                                 !\e[0m"
/bin/echo -e "\e[1;36m   !-----------------------------------------------------------------!\e[0m"
echo

#----------------------------------------------------------#
# Step 0 -Detecting if Parameters passed to script ....    #
#----------------------------------------------------------#

for arg in "$@"
do
    #Help Menu Requested
    if [ "$arg" == "--help" ] || [ "$arg" == "-h" ]
    then
                echo "Usage Syntax and Examples"
                echo
                echo " --custom or -c           custom xRDP install (compilation from sources)"
                echo " --loginscreen or -l      customize xRDP login screen"
                echo " --remove or -r           removing xRDP packages"
                echo " --sound or -s            enable sound redirection in xRDP"
                echo
                echo "example                                                      "
                echo     
                echo " ./debian-xrdp-installer-$ScriptVer.sh -c -s  custom install with sound redirection"
                echo " ./debian-xrdp-installer-$ScriptVer.sh -l     standard install with custom login screen"
                echo " ./debian-xrdp-installer-$ScriptVer.sh        standard install no additional features"
                echo
                exit
    fi

    if [ "$arg" == "--sound" ] || [ "$arg" == "-s" ]
    then
        fixSound="yes"              
    fi 

    if [ "$arg" == "--loginscreen" ] || [ "$arg" == "-l" ]
    then
        fixlogin="yes"
    fi

    if [ "$arg" == "--custom" ] || [ "$arg" == "-c" ]
    then
        adv="yes"   
    fi

    if [ "$arg" == "--remove" ] || [ "$arg" == "-r" ]
    then
        removal="yes"       
    fi
done

#--------------------------------------------------------------------------------#
#-- Step 0 - Check that the script is run as normal user and not as root....
#-------------------------------------------------------------------------------#

if [[ $EUID -ne 0 ]]; 
then
    /bin/echo -e "\e[1;36m   !-------------------------------------------------------------!\e[0m"
    /bin/echo -e "\e[1;36m   !  Standard user detected....Proceeding....                   !\e[0m"
    /bin/echo -e "\e[1;36m   !-------------------------------------------------------------!\e[0m"
else
    echo
    /bin/echo -e "\e[1;31m   !-------------------------------------------------------------!\e[0m"
    /bin/echo -e "\e[1;31m   !  Script launched with sudo command. Script will not run...  !\e[0m"
    /bin/echo -e "\e[1;31m   !  Run script a standard user account (no sudo). When needed  !\e[0m"
    /bin/echo -e "\e[1;31m   !  script will be prompted for password during execution      !\e[0m"
    /bin/echo -e "\e[1;31m   !                                                             !\e[0m"
    /bin/echo -e "\e[1;31m   !  Exiting Script - No Install Performed !!!                  !\e[0m"
    /bin/echo -e "\e[1;31m   !-------------------------------------------------------------!\e[0m"
    echo
    exit
fi

#---------------------------------------------------#
#-- Step 1 - Try to Detect Ubuntu Version....       #
#---------------------------------------------------#

check_os

#--------------------------------------------------------#
#-- Step 2 - Try to detect if HWE Stack needed or not....#
#--------------------------------------------------------#

check_hwe

#--------------------------------------------------------------------------------#
#-- Step 3 - Check if Removal Option Selected
#--------------------------------------------------------------------------------#

if [ "$removal" = "yes" ];
then
    remove_xrdp
    echo
    sh_credits
    exit
fi

#---------------------------------------------------------#
# Step 4 - Executing the installation & config tasks .... #
#---------------------------------------------------------#

#-- Detect if multiple runs and install mode used..... 
echo
/bin/echo -e "\e[1;33m   |-| Checking if script has run at least once...        \e[0m"

if [ -f /etc/xrdp/xrdp-installer-check.log ]
then
    modetype=$(sed -n 1p /etc/xrdp/xrdp-installer-check.log)
    /bin/echo -e "\e[1;32m       |-| Script has already run. Detected mode...: $modetype\e[0m"
else 
    /bin/echo -e "\e[1;32m       |-| First run or xrdp-installer-check.log deleted. Detected : $modetype        \e[0m"
fi 

#---------------------------------------------------------------------------------------
#- Detect Standard vs custom install mode and additional options...
#----------------------------------------------------------------------------------------

    if [ "$adv" = "yes" ];
    then
        echo
        /bin/echo -e "\e[1;33m   |-| custom installation mode detected.        \e[0m"
    
        if [ $modetype = "custom" ];
        then 
            /bin/echo -e "\e[1;36m           |-| xrdp package is already installed using custom mode....skipping xrdp install        \e[0m"
        else 
            /bin/echo -e "\e[1;36m           |-| Proceed custom xrdp installation packages and customization tasks      \e[0m"
            PrepOS
            install_custom
            install_tweak
            install_common
      
            #create the file used a detection method 
            sudo touch /etc/xrdp/xrdp-installer-check.log
            sudo bash -c 'echo "custom" >/etc/xrdp/xrdp-installer-check.log'
        fi      
    else
        echo
            /bin/echo -e "\e[1;33m   |-| Additional checks Std vs Custom Mode..       \e[0m"
        if [ $modetype = "standard" ];
        then 
            /bin/echo -e "\e[1;35m           |-| xrdp package is already installed using standard mode....skipping xrdp install  \e[0m"
        elif [ $modetype = "custom" ]
        then 
            /bin/echo -e "\e[1;35m           |-| Checking for additional parameters"
        else
            /bin/echo -e "\e[1;32m       |-| Proceed standard xrdp installation packages and customization tasks      \e[0m"
            PrepOS
            install_xrdp
            install_tweak
            install_common
            
            #create the file 
            sudo touch /etc/xrdp/xrdp-installer-check.log
            sudo bash -c 'echo "standard" >/etc/xrdp/xrdp-installer-check.log'
        fi
    fi  #end if Adv option

#---------------------------------------------------------------------------------------
#- Check for Additional Options selected 
#----------------------------------------------------------------------------------------

if [ "$fixSound" = "yes" ]; 
then 
        enable_sound      
fi

if [ "$fixlogin" = "yes" ]; 
then
    echo
    custom_login
fi

#---------------------------------------------------------------------------------------
#- show Credits and finishing script
#--------------------------------------------------------------------------------------- 

sh_credits