Security menu style

src/freedombone-sec

 }
 
 function menu_tor_bridges {
-    data=$(mktemp 2>/dev/null)
-    dialog --backtitle $"Freedombone Control Panel" \
-           --title $"Tor Bridges" \
-           --radiolist $"Choose an operation:" 14 50 6 \
-           1 $"Show bridges" off \
-           2 $"Add a bridge" off \
-           3 $"Remove a bridge" off \
-           4 $"Make this system into a bridge" off \
-           5 $"Stop being a bridge" off \
-           6 $"Go Back/Exit" on 2> "$data"
-    sel=$?
-    case $sel in
-        1) rm -f "$data"
-           exit 1;;
-        255) rm -f "$data"
-             exit 1;;
-    esac
+    W=(1 $"Show bridges"
+       2 $"Add a bridge"
+       3 $"Remove a bridge"
+       4 $"Make this system into a bridge"
+       5 $"Stop being a bridge")
 
-    case $(cat "$data") in
+    # shellcheck disable=SC2068
+    selection=$(dialog --backtitle $"Freedombone Administrator Control Panel" --title $"Security Settings" --menu $"Choose an operation, or ESC to go back:" 14 50 6 "${W[@]}" 3>&2 2>&1 1>&3)
+
+    if [ ! "$selection" ]; then
+        exit 0
+    fi
+
+    case $selection in
         1)
             show_tor_bridges
-            rm -f "$data"
             exit 0
             ;;
         2)
             add_tor_bridge
-            rm -f "$data"
             exit 0
             ;;
         3)
             remove_tor_bridge
-            rm -f "$data"
             exit 0
             ;;
         4)
             add_tor_bridge_relay
-            rm -f "$data"
             exit 0
             ;;
         5)
             remove_tor_bridge_relay
-            rm -f "$data"
-            exit 0
-            ;;
-        6)
-            rm -f "$data"
             exit 0
             ;;
     esac
-    rm -f "$data"
 }
 
 function menu_security_settings {
-    data=$(mktemp 2>/dev/null)
-    dialog --backtitle $"Freedombone Control Panel" \
-           --title $"Security Settings" \
-           --radiolist $"Choose an operation:" 23 76 23 \
-           1 $"Run STIG tests" off \
-           2 $"Fix STIG test failures" off \
-           3 $"Show ssh host public key" off \
-           4 $"Tor bridges" off \
-           5 $"Password storage" off \
-           6 $"Export passwords" off \
-           7 $"Regenerate ssh host keys" off \
-           8 $"Regenerate Diffie-Hellman keys" off \
-           9 $"Update cipersuite" off \
-           10 $"Create a new Let's Encrypt certificate" off \
-           11 $"Renew Let's Encrypt certificate" off \
-           12 $"Delete a Let's Encrypt certificate" off \
-           13 $"Enable GPG based authentication (monkeysphere)" off \
-           14 $"Register a website with monkeysphere" off \
-           15 $"Allow ssh login with passwords" off \
-           16 $"Go Back/Exit" on 2> "$data"
-    sel=$?
-    case $sel in
-        1) rm -f "$data"
-           exit 1;;
-        255) rm -f "$data"
-             exit 1;;
-    esac
+    W=(1 $"Run STIG tests"
+       2 $"Fix STIG test failures"
+       3 $"Show ssh host public key"
+       4 $"Tor bridges"
+       5 $"Password storage"
+       6 $"Export passwords"
+       7 $"Regenerate ssh host keys"
+       8 $"Regenerate Diffie-Hellman keys"
+       9 $"Update cipersuite"
+       10 $"Create a new Let's Encrypt certificate"
+       11 $"Renew Let's Encrypt certificate"
+       12 $"Delete a Let's Encrypt certificate"
+       13 $"Enable GPG based authentication (monkeysphere)"
+       14 $"Register a website with monkeysphere"
+       15 $"Allow ssh login with passwords")
+
+    # shellcheck disable=SC2068
+    selection=$(dialog --backtitle $"Freedombone Administrator Control Panel" --title $"Security Settings" --menu $"Choose an operation, or ESC to exit:" 23 76 23 "${W[@]}" 3>&2 2>&1 1>&3)
+
+    if [ ! "$selection" ]; then
+        exit 0
+    fi
 
     clear
 
     import_settings
     export_settings
 
-    case $(cat "$data") in
+    case $selection in
         1)
             clear
             echo $'Running STIG tests...'
             echo ''
             ${PROJECT_NAME}-tests --stig showall
-            rm -f "$data"
             exit 0
             ;;
         2)
             echo ''
             ${PROJECT_NAME}-tests --stig fix
             echo $'Fixes applied. You will need to run the STIG tests again to be sure that they were all fixed.'
-            rm -f "$data"
             exit 0
             ;;
         3)
             dialog --title $"SSH host public keys" \
-                   --msgbox "\n$(get_ssh_server_key)" 12 60
-            rm -f "$data"
+                   --msgbox "\\n$(get_ssh_server_key)" 12 60
             exit 0
             ;;
         4)
             menu_tor_bridges
-            rm -f "$data"
             exit 0
             ;;
         5)
             store_passwords
-            rm -f "$data"
             exit 0
             ;;
         6)
             export_passwords
-            rm -f "$data"
             exit 0
             ;;
         7)
         15)
             allow_ssh_passwords
             change_ssh_settings
-            rm -f "$data"
-            exit 0
-            ;;
-        16)
-            rm -f "$data"
             exit 0
             ;;
     esac
-    rm -f "$data"
 
     change_website_settings
     change_imap_settings