Update the ssl ciphers and add dhparams.pem

Fixes #218

scripts/installer.sh

@@ -51,6 +51,13 @@ if ! id "${USER}" 2>/dev/null; then
 fi
 
 if [[ "${is_update}" == "yes" ]]; then
+    # This is here, since the splash screen needs this file to be present :-(
+    readonly DATA_DIR="/home/${USER}/data"
+    if [[ ! -f "${DATA_DIR}/nginx/cert/dhparams.pem" ]]; then
+        mkdir -p "${DATA_DIR}/nginx/cert/"
+        openssl dhparam -out "${DATA_DIR}/nginx/cert/dhparams.pem" 2048
+    fi
+
     echo "Setting up update splash screen"
     "${box_src_tmp_dir}/setup/splashpage.sh" --data "${arg_data}" # show splash from new code
     ${BOX_SRC_DIR}/setup/stop.sh # stop the old code