#!/bin/sh

if [ ! $(whoami) = "root" ]; then
 echo "You need to be root to run this command."
 exit 1
fi

PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export PATH

RUNNING_FREEBSD_VERSION=$(uname -r | awk -F '-' '{print $1}')
RUNNING_FREEBSD_ARCH=$(uname -m)

case ${RUNNING_FREEBSD_VERSION} in
  "9.2"|"9.3"|"10.0"|"10.1"|"10.2") ;;
  *)
    echo "Unsupported FreeBSD version \"${RUNNING_FREEBSD_VERSION}\"."
    echo "Supported versions are \"9.2\", \"9.3\", \"10.0\", \"10.1\" or \"10.2\". Exiting."
    exit 1
  ;;
esac

run_command() {

  #############################################################################
  ## This function exists for two reasons; 1) to give better feedback to the ##
  ## user and 2) provide a rudimentary form of error checking to just bail   ##
  ## out if things go south.                                                 ##
  ##                                                                         ##
  ## Two important things to know about it.                                  ##
  ## - Always remember to begin and end the command you want to have run     ##
  ## with quotation marks to have it passed through as just one long string. ##
  ## - Any quotation marks inside the command have to be commented out by    ##
  ## prefixing with a backslash so that they pass through "echo" as literal  ##
  ## quotes. Example:                                                        ##
  ## run_command "echo \"\""                                                 ##
  ## To pass through those same characters but literally(\"):                ##
  ## run_command "echo \\\"\\\""                                             ##
  #############################################################################

  RUN_DIR="/var/tmp"
  if [ ! -d ${RUN_DIR} ]; then
    mkdir ${RUN_DIR}
    chown root:$(id root | awk '{gsub(/\(/, " "); gsub(/\)/, " "); if ($3 ~ "gid") print $4}') ${RUN_DIR}
    chmod 777 ${RUN_DIR}
  fi
  COMMAND=$(mktemp ${RUN_DIR}/run_command.cmd.XXXXXX)
  OUTPUT=$(mktemp ${RUN_DIR}/run_command.out.XXXXXX)
  echo "#!/bin/sh" > ${COMMAND}
  echo "$1" >> ${COMMAND}
  chmod +x ${COMMAND}
  echo "+-- Running command:"
  echo "$(cat ${COMMAND} | egrep -v "^#!/bin/sh$")"
  ${COMMAND} > ${OUTPUT} 2>&1
  if [ $? -gt "0" ]; then
    echo "+-- Command Failed!"
    echo "+-- Output was:"
    echo "$(cat ${OUTPUT})"
    echo ""
    rm ${OUTPUT} > /dev/null 2>&1
    rm ${COMMAND} > /dev/null 2>&1
    exit 1
  else
    echo "+-- Command succeeded."
    echo ""
  fi
  rm ${OUTPUT} > /dev/null 2>&1
  rm ${COMMAND} > /dev/null 2>&1
}

while [ $(ping -c 1 172.16.1.9 2>/dev/null | grep "bytes from" | awk 'END{print NR}') = "0" ]; do
 echo "+-- No response from primary DNS, sleeping."
 sleep 1
done

IFACE=$(for i in $(ifconfig | awk '/^[a-zA-Z]+[0-9]+/ {gsub(/\:/, ""); print $1}'); do if ifconfig $i | grep -q $(netstat -rn | awk '/default/ {gsub(/\./, " "); print $2"."$3"."$4}'); then echo $i; fi; done)
IPADDR=$(ifconfig ${IFACE} | awk '($1 == "inet") {sub(/\:/, ""); print $2}')
NETMASK=$(netstat -rn | grep $(echo ${IPADDR} | awk -F '.' '{print $1"."$2"."$3".0"}') | awk '{sub(/\//, " "); print $2}')
FULL_COMPUTERNAME=$(host $(echo ${IPADDR}) | awk '{print $5}' | awk -F '.' '{print $1}')
DOMAIN_NAME=$(host $(echo ${IPADDR}) | awk '{print $5}' | awk '{sub(/\.$/,"");printf("%s\n",substr($1,index($1,".")+1))}')
HOST_NAME=${FULL_COMPUTERNAME}.${DOMAIN_NAME}
if [ $(echo ${FULL_COMPUTERNAME} | awk -F "-" '{print $1"-"$2"-"$3"-"$4}') = "ovirt-0-1a-4a" ]; then
  SHORT_COMPUTERNAME=$(echo ${FULL_COMPUTERNAME} | awk -F "-" '{print $1"-"$5"-"$6"-"$7}')
  NETBIOS_COMPUTERNAME=$(echo ${SHORT_COMPUTERNAME} | awk '{print toupper ($1)}')
else
  NETBIOS_COMPUTERNAME=$(echo ${FULL_COMPUTERNAME} | awk '{print toupper ($1)}')
fi
for DISK in $(ls -1 /dev/ | egrep '(da|vtbd)' | egrep -v [a-z]+[0-9]+[a-z][0-9]+); do
  HDD=$(camcontrol devlist | egrep "\(${DISK},|,${DISK}\)" | egrep '(ATA|QEMU HARDDISK)' | awk 'END{print NR}')
  if [ ${HDD} = 1 ]; then
    HDDS="${HDDS} /dev/${DISK}"
  else
    DEVICE_NUMBER=$(echo ${DISK} | awk '{gsub(/[a-zA-Z]/, ""); print}')
    if [ $(grep "vtblk${DEVICE_NUMBER}" /var/run/dmesg.boot | awk 'END{print NR}') -gt "0" ]; then
      HDDS="${HDDS} /dev/${DISK}"
    fi
  fi
done
HDDS=$(echo ${HDDS} | sed 's/^ //')


run_command "pkg install -y ssmtp"
run_command "sed -i '' \"/# root:       me@my.domain/{G;s/$/root:       karli.sjoberg@gmail.com/;}\" /etc/aliases"
run_command "newaliases"
run_command "cat > /usr/local/etc/ssmtp/ssmtp.conf << EOF
root=karli.sjoberg@gmail.com
mailhub=smtp.gmail.com:587
rewriteDomain=inparadise.se
hostname=${HOST_NAME}
UseTLS=Yes
UseSTARTTLS=Yes
AuthUser=karli.sjoberg@gmail.com
AuthPass=Storm08Kira12Tintin14_
FromLineOverride=yes
EOF"
run_command "sed -i '' -e 's,^[^#],#&,g' /etc/mail/mailer.conf"
run_command "cat >> /etc/mail/mailer.conf << EOF
sendmail        /usr/local/sbin/ssmtp
send-mail       /usr/local/sbin/ssmtp
mailq           /usr/local/sbin/ssmtp
newaliases      /usr/local/sbin/ssmtp
hoststat        /usr/bin/true
purgestat       /usr/bin/true
EOF"
run_command "sed -i '' \"s/Charlie &:\/root:\/bin\/csh/${FULL_COMPUTERNAME}@inparadise.se:\/root:\/bin\/csh/\" /etc/master.passwd"
run_command "pwd_mkdb -p /etc/master.passwd"