Add some helper scripts.

helpers/create_client_whitelist.sh

@@ -0,0 +1,85 @@
+#!/usr/bin/env bash
+
+tmp_err_msg=$(mktemp)
+
+# -------------
+# --- Some functions
+# -------------
+clean_up() {
+
+   # Perform program exit housekeeping
+   rm -f $tmp_err_msg
+   exit $1
+}
+
+echononl(){
+   echo X\\c > /tmp/shprompt$$
+   if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
+      echo -e -n "$*\\c" 1>&2
+   else
+       echo -e -n "$*" 1>&2
+   fi
+   rm /tmp/shprompt$$
+}
+
+fatal(){
+   echo ""
+   echo -e "fatal error: $*"
+   echo ""
+   echo -e "\t\033[31m\033[1mInstalllation will be interrupted\033[m\033[m"
+   echo ""
+   exit 1
+}
+
+error(){
+   echo ""
+   echo -e "\t[ \033[31m\033[1mFehler\033[m ]: $*"
+   echo ""
+}
+
+warn (){
+   echo ""
+   echo -e "\t[ \033[33m\033[1mWarning\033[m ]: $*"
+   echo ""
+}
+
+info (){
+   echo ""
+   echo -e "\t[ \033[32m\033[1mInfo\033[m ]: $*"
+   echo ""
+}
+
+echo_done() {
+   echo -e "\033[80G[ \033[32mdone\033[m ]"
+}
+echo_ok() {
+   echo -e "\033[80G[ \033[32mok\033[m ]"
+}
+echo_warning() {
+   echo -e "\033[80G[ \033[33m\033[1mwarn\033[m ]"
+}
+echo_failed(){
+   echo -e "\033[80G[ \033[1;31mfailed\033[m ]"
+}
+echo_skipped() {
+   echo -e "\033[80G[ \033[33m\033[1mskipped\033[m ]"
+}
+
+echononl "   Create file \"client_whitelist\""
+if [[ ! -f "/etc/postfix/client_whitelist" ]]; then
+   cat <<EOF > /etc/postfix/client_whitelist
+# onion - tor hidden service
+127.0.0.25        OK
+EOF
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+      postmap btree:/etc/postfix/client_whitelist
+   else
+      echo_failed
+   fi
+else
+   echo_skipped
+fi
+
+
+clean_up 0