Easy start script: remove obsolete code

This reverts commit b8fd6a28a4.

builder/dockerfile.debian_buster.deb.test

@@ -34,6 +34,14 @@ RUN apt-get purge -y pm-utils xscreensaver*
 RUN apt-get update && apt-get install -y vim less
 RUN apt-get update && apt-get -y install lsb-release
 
+RUN apt-get update && apt-get install -y task-cinnamon-desktop
+RUN apt-get update && apt-get install -y task-gnome-desktop
+RUN mkdir -p /usr/share/man/man1
+RUN apt-get update && apt-get install -y apt-utils openjdk-11-jre
+RUN apt-get update && apt-get install -y task-lxde-desktop
+RUN apt-get update && apt-get install -y task-mate-desktop
+RUN apt-get update && apt-get install -y task-kde-desktop
+
 RUN echo 'source $STARTUPDIR/generate_container_user' >> $HOME/.bashrc
 
 RUN mkdir -p $STARTUPDIR

builder/startup/deb/kasmvncserver-easy-start

@@ -5,25 +5,183 @@ set -e
 display=:10
 interface=0.0.0.0
 cert_group=ssl-cert
-
-if [[ "$1" = "--help" ]]; then
-  cat >&2 <<-USAGE
-Usage: `basename $0` [options]
-  -d     Debug output
-  -kill  Kill vncserver
-  --help show this help
-USAGE
-  exit
-fi
-
-if [[ "$1" = "-d" ]]; then
-  log_option="-log *:stderr:100"
-fi
+xstartup_script=~/.vnc/xstartup
+de_was_selected_file="$HOME/.vnc/.kasmvncserver-easy-start-de-was-selected"
 
 action=start
-if [[ "$1" = "-kill" ]]; then
-  action=kill
-fi
+
+manual_xstartup_choice="Manually edit xstartup"
+declare -A all_desktop_environments=(
+  [Cinnamon]=cinnamon-session
+  [Mate]="XDG_CURRENT_DESKTOP=MATE dbus-launch --exit-with-session mate-session"
+  [LXDE]=lxsession [Lxqt]=startlxqt
+  [KDE]=startkde
+  [Gnome]="XDG_CURRENT_DESKTOP=GNOME dbus-launch --exit-with-session /usr/bin/gnome-session"
+  [XFCE]=xfce4-session)
+
+readarray -t sorted_desktop_environments < <(for de in "${!all_desktop_environments[@]}"; do echo "$de"; done | sort)
+
+all_desktop_environments[$manual_xstartup_choice]=""
+sorted_desktop_environments+=("$manual_xstartup_choice")
+
+detected_desktop_environments=()
+declare -A numbered_desktop_environments
+
+debug() {
+  if [ -z "$debug" ]; then return; fi
+
+  echo "$@"
+}
+
+print_detected_desktop_environments() {
+  declare -i i=1
+
+  echo "Please choose Desktop Environment to run:"
+  for detected_de in "${detected_desktop_environments[@]}"; do
+    echo "[$i] $detected_de"
+    numbered_desktop_environments[$i]=$detected_de
+    i+=1
+  done
+}
+
+detect_desktop_environments() {
+  for de_name in "${sorted_desktop_environments[@]}"; do
+    if [[ "$de_name" = "$manual_xstartup_choice" ]]; then
+      detected_desktop_environments+=("$de_name")
+      continue;
+    fi
+
+    local executable=${all_desktop_environments[$de_name]}
+    executable=($executable)
+    executable=${executable[-1]}
+
+    if detect_desktop_environment "$de_name" "$executable"; then
+      detected_desktop_environments+=("$de_name")
+    fi
+  done
+}
+
+ask_user_to_choose_de() {
+  while : ; do
+    print_detected_desktop_environments
+    read -r de_number_to_run
+    de_name_from_number "$de_number_to_run"
+    if [[ -n "$de_name" ]]; then
+      break;
+    fi
+
+    echo "Incorrect number: $de_number_to_run"
+    echo
+  done
+}
+
+remember_de_choice() {
+  touch "$de_was_selected_file"
+}
+
+de_was_selected_on_previous_run() {
+  [[ -f "$de_was_selected_file" ]]
+}
+
+detect_desktop_environment() {
+  local de_name="$1"
+  local executable="$2"
+
+  if command -v "$executable" &>/dev/null; then
+    return 0
+  fi
+
+  return 1
+}
+
+did_user_forbid_replacing_xstartup() {
+  grep -q -v KasmVNC-safe-to-replace-this-file "$xstartup_script"
+}
+
+de_cmd_from_name() {
+  de_cmd=${all_desktop_environments[$de_name]}
+}
+
+de_name_from_number() {
+  local de_number_to_run="$1"
+
+  de_name=${numbered_desktop_environments[$de_number_to_run]}
+}
+
+warn_xstartup_will_be_overwriten() {
+  echo -n "WARNING: $xstartup_script will be overwritten y/N?"
+  read -r do_overwrite_xstartup
+  if [[ "$do_overwrite_xstartup" = "y" || "$do_overwrite_xstartup" = "Y" ]]; then
+    return 0
+  fi
+
+  return 1
+}
+
+setup_de_to_run_via_xstartup() {
+  warn_xstartup_will_be_overwriten
+  generate_xstartup "$de_name"
+}
+
+generate_xstartup() {
+  local de_name="$1"
+
+  de_cmd_from_name
+
+  cat <<-SCRIPT > "$xstartup_script"
+    #!/bin/sh
+    exec $de_cmd
+SCRIPT
+  chmod +x "$xstartup_script"
+}
+
+enable_debug() {
+  debug=1
+  log_option="-log *:stderr:100"
+}
+
+kill_vnc_server() {
+  vncserver -kill $display
+}
+
+process_cli_options() {
+  for option in "$@"; do
+    case "$option" in
+      --help)
+        show_help
+        exit
+        ;;
+      -d)
+        enable_debug
+        ;;
+      -kill)
+        kill_vnc_server
+        exit
+        ;;
+      -select-de)
+        action=select-de-and-start
+        ;;
+      *)
+        echo >&2 "Unsupported argument: $option"
+        exit 1
+    esac
+  done
+}
+
+user_asked_to_select_de() {
+  [[ "$action" = "select-de-and-start" ]]
+}
+show_help() {
+  cat >&2 <<-USAGE
+Usage: `basename $0` [options]
+  -d          Debug output
+  -kill       Kill vncserver
+  -select-de  Select desktop environent to run
+  --help      show this help
+USAGE
+}
+
+process_cli_options "$@"
 
 if groups | grep -qvw ssl-cert; then
   cat <<-EOF
@@ -33,9 +191,14 @@ EOF
   exit 1
 fi
 
-if [[ "$action" = "kill" ]]; then
-  vncserver -kill $display
-  exit
+if user_asked_to_select_de || ! de_was_selected_on_previous_run; then
+  detect_desktop_environments
+  ask_user_to_choose_de
+  debug "You selected $de_name desktop environment"
+  if [[ "$de_name" != "$manual_xstartup_choice" ]]; then
+    setup_de_to_run_via_xstartup
+  fi
+  remember_de_choice
 fi
 
 vncserver $display -interface $interface

builder/startup/vnc_startup.sh

@@ -61,6 +61,8 @@ kasmvncpasswd -d -u "$VNC_USER-to-delete" $HOME/.kasmpasswd
 chmod 0600 $HOME/.kasmpasswd
 openssl req -x509 -nodes -days 3650 -newkey rsa:2048 -keyout $HOME/.vnc/self.pem -out $HOME/.vnc/self.pem -subj "/C=US/ST=VA/L=None/O=None/OU=DoFu/CN=kasm/emailAddress=none@none.none"
 
+exec /bin/bash
+
 vncserver :1 -interface 0.0.0.0
 vncserver -kill :1
 

builder/test-deb

@@ -8,7 +8,7 @@ cd "$(dirname "$0")"
 docker build --build-arg KASMVNC_PACKAGE_DIR="build/${os_codename}" \
   -t kasmvnctester_${os}:$os_codename \
   -f dockerfile.${os}_${os_codename}.deb.test .
-docker run -it -p 443:8443 --rm \
+  docker run -it -v $(realpath ${PWD}/..):/src -p 8443:8443 --rm \
   -e KASMVNC_VERBOSE_LOGGING=$KASMVNC_VERBOSE_LOGGING \
   -e "VNC_USER=foo" -e "VNC_PW=foobar" \
   kasmvnctester_${os}:$os_codename