Add bash snippet 'create_sha512-hash.sh'.

snippets/create_sha512-hash.sh

@@ -0,0 +1,214 @@
+#!/usr/bin/env bash
+
+script_name="$(basename $(realpath $0))"
+working_dir="$(dirname $(realpath $0))"
+
+conf_file="${working_dir}/conf/${script_name%%.*}.conf"
+
+LOCK_DIR="/tmp/$(basename $0).$$.LOCK"
+log_file="${LOCK_DIR}/${script_name%%.*}.log"
+
+
+# ----------
+# Base Function(s)
+# ----------
+
+usage() {
+
+
+   [[ -n  "$1" ]] && error "$1"
+
+
+   [[ $terminal ]] && echo -e "
+\033[1mUsage:\033[m
+
+   $(basename $0) <password> [salt]
+
+\033[1mDescription\033[m
+
+   Script creates a saltet SHA-512 hash for a given passwort. If no salt is given,
+   a random salt of length '8' is used.
+
+\033[1mOptions\033[m
+
+   No further Options needed. The clear password and optionally the salt is given
+   at the commandline.
+
+\033[1mFiles\033[m
+
+   No configuration files needed
+
+\033[1mExample:\033[m
+
+   Create a saltet SHA512 password hash
+
+      $(basename $0) test100 54A2E64G
+
+"
+
+   clean_up 1
+
+}
+
+
+echononl(){
+   if $terminal ; then
+      echo X\\c > /tmp/shprompt$$
+      if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
+         echo -e -n "   $*\\c" 1>&2
+      else
+         echo -e -n "   $*" 1>&2
+      fi
+      rm /tmp/shprompt$$
+   fi
+}
+
+clean_up() {
+
+   # Perform program exit housekeeping
+   rm -rf "$LOCK_DIR"
+   blank_line
+   exit $1
+}
+
+fatal(){
+   echo ""
+   if $terminal ; then
+      echo -e "   [ \033[31m\033[1mFatal\033[m ] $*"
+   else
+      echo -e "   [ Fatal ] $*"
+   fi
+   echo ""
+   if $terminal ; then
+      echo -e "             \033[1mScript terminated\033[m.."
+   else
+      echo -e "             Script terminated.."
+   fi
+   echo ""
+   rm -rf $LOCK_DIR
+   exit 1
+}
+
+
+error (){
+   echo ""
+   if $terminal ; then
+      echo -e "   [ \033[31m\033[1mError\033[m ] $*"
+   else
+      echo "   [ Error ] $*"
+   fi
+   echo ""
+}
+
+echo_ok() {
+   if $terminal ; then
+      echo -e "\033[55G[ \033[32mok\033[m ]"
+   fi
+}
+echo_failed(){
+   if $terminal ; then
+      echo -e "\033[55G[ \033[1;31mfailed\033[m ]"
+   fi
+}
+echo_skipped() {
+   if $terminal ; then
+      echo -e "\033[55G[ \033[33m\033[1mskipped\033[m ]"
+   fi
+}
+
+trim() {
+    local var="$*"
+    var="${var#"${var%%[![:space:]]*}"}"   # remove leading whitespace characters
+    var="${var%"${var##*[![:space:]]}"}"   # remove trailing whitespace characters
+    echo -n "$var"
+}
+
+blank_line() {
+   if $terminal ; then
+      echo ""
+   fi
+}
+
+
+
+# ----------
+# - Jobhandling
+# ----------
+
+# - Run 'clean_up' for signals SIGHUP SIGINT SIGTERM
+# -
+trap clean_up SIGHUP SIGINT SIGTERM
+
+# - Create lock directory '$LOCK_DIR"
+#
+mkdir "$LOCK_DIR"
+
+
+# ----------
+# - Some checks ..
+# ----------
+
+# - Running in a terminal?
+# -
+if [[ -t 1 ]] ; then
+   terminal=true
+else
+   fatal "Script must run in a terminal."
+fi
+# - Print help?
+# -
+if [[ "$(trim $*)" = "-h" ]] || [[ "$(trim $*)" = "--help" ]] ; then
+    usage
+fi
+
+if [[ -z "$(which basename)" ]]; then
+   fatal 'It seems "basename" is not installed, but needed!'
+fi
+
+
+
+if [[ $# < 1 ]] 
+then
+   usage
+fi
+
+
+passwd=$1
+salt=$2
+
+[[ -z $salt ]] && salt=$(tr -cd 'a-zA-Z0-9' < /dev/urandom | head -c 8)
+
+
+echo ""
+echo ""
+echononl "\033[1mmkpasswd -m SHA-512 $passwd $salt\033[m"
+passwd_hash="$(mkpasswd -m SHA-512 "$passwd" $salt 2> $log_file)"
+if [[ $? -ne 0 ]] ; then
+   echo_failed
+   error "$(cat "$log_file")"
+else
+   echo_ok
+   echo ""
+   echo "      password:      $passwd"
+   echo "      salt:          $salt"
+   echo "      password hash: $passwd_hash"
+   echo ""
+fi
+
+echo ""
+echo ""
+echononl "\033[1mopenssl passwd -6 -salt $salt \"$passwd\"\033[m"
+passwd_hash="$(openssl passwd -6 -salt $salt "$passwd" 2> $log_file)"
+if [[ $? -ne 0 ]] ; then
+   echo_failed
+   error "$(cat "$log_file")"
+else
+   echo_ok
+   echo ""
+   echo "      password:      $passwd"
+   echo "      salt:          $salt"
+   echo "      password hash: $passwd_hash"
+   echo ""
+fi
+
+clean_up 0