Refactor install for #1477

install

@@ -8,127 +8,154 @@
 set -euo pipefail
 IFS=$'\n\t'
 
-clear
 
-if [ -f core/main/console/beef.ascii ] ; then
-  cat core/main/console/beef.ascii
-  echo
-fi
+info()  { echo -e "\\033[1;36m[INFO]\\033[0m  $*"; }
+warn()  { echo -e "\\033[1;33m[WARNING]\\033[0m  $*"; }
+fatal() { echo -e "\\033[1;31m[FATAL]\\033[0m  $*"; exit 1 ; }
 
-echo "#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#"
-echo "                   -- [ BeEF Installer ] --                      "
-echo "#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#"
-echo
 
 command_exists () {
+
   command -v "$1" /dev/null 2&>/dev/null
 }
 
-info()  { echo "[INFO]   $*"; }
-warn()  { echo "[WARN]   $*"; }
-error() { echo "[ERROR]  $*"; }
-fatal() { echo "[FATAL]  $*"; exit 1 ; }
 
-warn 'This script will install BeEF and its required dependencies (including operating system packages).'
-read -p  "Are you sure you wish to continue (Y/n)? " 
-if [ "`echo ${REPLY} | tr [:upper:] [:lower:]`" = "n" ] ; then
-  fatal 'Installation aborted'
-fi
+get_permission () {
+
+  warn 'This script will install BeEF and its required dependencies (including operating system packages).'
+
+  read -rp  "Are you sure you wish to continue (Y/n)? " 
+  if [ "$(echo "${REPLY}" | tr "[:upper:]" "[:lower:]")" = "n" ] ; then
+    fatal 'Installation aborted'
+  fi
+}
+
+
+check_os () {
+
+  info "Detecting OS..."
+
+  OS=$(uname)
+  readonly OS
+  info "Operating System: $OS"
+  if [ "${OS}" = "Linux" ] ; then
+    info "Launching Linux install..."
+    install_linux
+  elif [ "${OS}" = "Darwin" ]; then
+    info "Launching Mac OSX install..."
+    install_mac
+  else
+    fatal "Unable to locate installer for your Operating system: $OS"
+  fi
+}
+
 
 install_linux () {
+
   info "Detecting Linux OS distribution..."
+
   Distro=''
   if [ -f /etc/redhat-release ] ; then
     Distro='RedHat'
   elif [ -f /etc/debian_version ] ; then
     Distro='Debian'
   elif [ -f /etc/os-release ] ; then
-    DISTRO_ID=`grep ^ID= /etc/os-release | cut -d= -f2-`
-    if [ "$DISTRO_ID" = 'kali' ] ; then
+    DISTRO_ID=$(grep ^ID= /etc/os-release | cut -d= -f2-)
+    if [ "${DISTRO_ID}" = 'kali' ] ; then
       Distro='Kali'
     fi
   fi
 
-  if [ -z $Distro ] ; then
-    fatal "Unable to locate installer for your $OS distribution"
+  if [ -z "${Distro}" ] ; then
+    fatal "Unable to locate installer for your ${OS} distribution"
   fi
 
   readonly Distro
-  info "OS Distribution: $Distro"
-  info "Installing $Distro prerequisite packages..."
-  if [ "$Distro" = "Debian" -o "$Distro" = "Kali" ]; then
+  info "OS Distribution: ${Distro}"
+  info "Installing ${Distro} prerequisite packages..."
+  if [ "${Distro}" = "Debian" ] || [ "${Distro}" = "Kali" ]; then
     sudo apt-get update
     sudo apt-get install curl git build-essential openssl libreadline6-dev zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-0 libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev autoconf libc6-dev libncurses5-dev automake libtool bison subversion nodejs
-  elif [ "$Distro" = "RedHat" ]; then
+  elif [ "${Distro}" = "RedHat" ]; then
     sudo yum install -y git make gcc openssl-devel gcc-c++ patch readline readline-devel zlib zlib-devel libyaml-devel libffi-devel bzip2 autoconf automake libtool bison iconv-devel sqlite-devel nodejs
   fi
 }
 
+
 install_mac () {
   # brew install ...
   echo
 }
 
-info "Detecting OS..."
-OS=`uname`
-readonly OS
-info "Operating System: $OS"
-if [ "${OS}" = "Linux" ] ; then
-  info "Launching Linux install..."
-  install_linux
-elif [ "$OS" = "Darwin" ]; then
-  info "Launching Mac OSX install..."
-  install_mac
-else
-  fatal "Unable to locate installer for your Operating system: $OS"
-fi
-
-info 'Detecting Ruby environment...'
-MIN_RUBY_VER='2.3'
-if command_exists ruby
-then
-  RUBY_VERSION=`ruby -e "puts RUBY_VERSION"`
-  info "Ruby version ${RUBY_VERSION} is installed"
-  if [ `ruby -e "puts RUBY_VERSION.to_f >= ${MIN_RUBY_VER}"` = 'false' ]
+
+check_ruby_version () {
+
+  info 'Detecting Ruby environment...'
+
+  MIN_RUBY_VER='2.3'
+  if command_exists ruby
   then
-    fatal "Ruby version ${RUBY_VERSION} is not supported. Please install Ruby ${MIN_RUBY_VER} (or newer) and restart the installer."
+    RUBY_VERSION=$(ruby -e "puts RUBY_VERSION")
+    info "Ruby version ${RUBY_VERSION} is installed"
+    if [ "$(ruby -e "puts RUBY_VERSION.to_f >= ${MIN_RUBY_VER}")" = 'false' ]
+    then
+      fatal "Ruby version ${RUBY_VERSION} is not supported. Please install Ruby ${MIN_RUBY_VER} (or newer) and restart the installer."
+    fi
+  else
+    fatal "Ruby is not installed. Please install Ruby ${MIN_RUBY_VER} (or newer) and restart the installer."
   fi
-else
-  fatal "Ruby is not installed. Please install Ruby ${MIN_RUBY_VER} (or newer) and restart the installer."
-fi
-
-#if command_exists rbenv
-#then
-#  info 'rbenv is installed'
-#elif command_exists rvm
-#then
-#  info 'rvm is installed'
-#else
-#  fatal 'Could not find Ruby environment manager!
-#Please install either RVM or rbenv and restart the installer
-#For more information:
-#  * rbenv: https://github.com/rbenv/rbenv
-#  * rvm: https://rvm.io/rvm/install'
-#fi
-
-info 'Detecting bundler gem...'
-if command_exists bundler
-then
-  info 'bundler gem is installed'
-else
-  info 'Installing bundler gem'
-  gem install bundler
-fi
-
-info "Installing required Ruby gems..."
-bundle install --without test development
-
-echo
-echo "=========================================="
-echo
-echo "  Install completed successfully!"
-echo "  Run './beef' to launch BeEF"
-echo
-echo "=========================================="
-echo
+}
+
+
+check_bundler () {
+
+  info 'Detecting bundler gem...'
+
+  if command_exists bundler
+  then
+    info 'bundler gem is installed'
+  else
+    info 'Installing bundler gem'
+    gem install bundler
+  fi
+}
+
+
+install_beef () { 
+
+  echo "Installing required Ruby gems..."
+  bundle install --without test development
+
+  echo
+  echo "=========================================="
+  echo
+  info "Install completed successfully!"
+  info "Run './beef' to launch BeEF"
+  echo
+  echo "=========================================="
+  echo
+}
+
+
+main () {
+
+  clear
+
+  if [ -f core/main/console/beef.ascii ] ; then
+    cat core/main/console/beef.ascii
+    echo
+  fi
+
+  echo "#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#"
+  echo "                   -- [ BeEF Installer ] --                      "
+  echo "#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#"
+  echo
+
+  get_permission
+  check_os
+  check_ruby_version
+  check_bundler
+  install_beef
+}
 
+main "$@"