Show qrcode for syncthing within web UI

src/freedombone-utils-webadmin

@@ -260,9 +260,13 @@ function web_admin_create_add_apps {
                     continue
                 fi
 
+                # remove any qrcode images
                 if [ -f "$webadmin_install_dir/app_qrcode_${app_name}.png" ]; then
                     rm "$webadmin_install_dir/app_qrcode_${app_name}.png"
                 fi
+                if [ -f "$webadmin_install_dir/${app_name}_qrcode.png" ]; then
+                    rm "$webadmin_install_dir/${app_name}_qrcode.png"
+                fi
 
                 app_name_upper=$(echo "$app_name" | awk '{print toupper($0)}')
                 SHORT_DESCRIPTION=
@@ -509,7 +513,19 @@ function web_admin_create_installed_apps {
                     if [[ "${onion_domain_name}" == *'.'* ]]; then
                         sed -i "s|ONIONURL|<a href=\"app_qrcode_${app_name}.png\">http://${onion_domain_name}</a>|g" "$filename"
                     else
-                        sed -i '/ONIONURL/d' "$filename"
+                        if [[ "$app_name" == 'syncthing' ]]; then
+                            syncthing_id=$(cat "/home/$MY_USERNAME/.syncthing-server-id")
+                            if [ ! -f "$webadmin_install_dir/${app_name}_qrcode.png" ]; then
+                                if [ ! -f /usr/local/bin/myqr ]; then
+                                    echo -n "$syncthing_id" | qrencode -t PNG -o "$webadmin_install_dir/${app_name}_qrcode.png"
+                                else
+                                    myqr "syncthing_id" -p /root/freedombone/img/onion.png -c -n "$webadmin_install_dir/${app_name}_qrcode.png"
+                                fi
+                            fi
+                            sed -i "s|ONIONURL|<a href=\"${app_name}_qrcode.png\">${syncthing_id}</a>|g" "$filename"
+                        else
+                            sed -i '/ONIONURL/d' "$filename"
+                        fi
                     fi
                     if [[ "$ONION_ONLY" != 'no' ]]; then
                         sed -i '/APPURL/d' "$filename"