Add additional CLI input validation

emu-configs/defaults/retrodeck/input_validation.cfg

@@ -0,0 +1,5 @@
+uuddlrlrstart^set_setting_value /var/config/retrodeck/retrodeck.cfg developer_options true retrodeck
+uuddlrlrstart^echo Visit the Configurator to behold your new-found powers.
+uuddlrlrstart^echo But beware, with great power comes great responsibility...
+gameovermangameover^set_setting_value /var/config/retrodeck/retrodeck.cfg developer_options false retrodeck
+gameovermangameover^echo You have relinquished your powers in the name of saftey.

functions.sh

@@ -631,6 +631,17 @@ check_network_connectivity() {
   fi
 }
 
+validate_input() {
+  while IFS="^" read -r input action
+  do
+    if [[ "$input" == "$1" ]]; then
+      # $action line must be completely literal in the $input_validation file. No shell expansion or extra characters.
+      $action
+      input_validated="true"
+    fi
+  done < $input_validation
+}
+
 update_rd_conf() {
   # This function will import a default retrodeck.cfg file and update it with any current settings. This will allow us to expand the file over time while retaining current user settings.
   # USAGE: update_rd_conf

global.sh

@@ -13,6 +13,7 @@ rd_update_patch="/var/config/retrodeck/rd_update.patch"
 bios_checklist="$emuconfigs/defaults/retrodeck/bios_checklist.cfg"                                            # A config file listing BIOS file information that can be verified
 compression_targets="$emuconfigs/defaults/retrodeck/compression_targets.cfg"                                  # A config file containing supported compression types per system
 easter_egg_checklist="$emuconfigs/defaults/retrodeck/easter_egg_checklist.cfg"                                # A config file listing days and times when special splash screens should show up
+input_validation="$emuconfigs/defaults/retrodeck/input_validation.cfg"                                        # List of valid CLI inputs
 splashscreen_dir="/var/config/emulationstation/.emulationstation/resources/graphics/extra-splashes"           # The default location of extra splash screens
 current_splash_file="/var/config/emulationstation/.emulationstation/resources/graphics/splash.svg"            # The active splash file that will be shown on boot
 default_splash_file="/var/config/emulationstation/.emulationstation/resources/graphics/splash-orig.svg"       # The default RetroDECK splash screen

retrodeck.sh

@@ -96,7 +96,10 @@ https://retrodeck.net
       exit 1
       ;;
     *)
-      echo "Please specify a valid option. Use -h for more information."
+      validate_input "$i"
+      if [[ ! $input_validated == "true" ]]; then
+        echo "Please specify a valid option. Use -h for more information."
+      fi
       ;;
   esac
 done