#!/bin/sh

# use lftp to mirror (download) a remote (source) server directory
# to a local (target) directory, removing the remote directory after
# transfer is complete. Uses parallel file transfer as well as segmented
# transfer. Authorization is done using default ssh private key file as
# determined by "ssh -a -x"

# Leave PASSword blank to use ssh private key authorization
PIDFILE=~/.lftp_script.pid

if [ -e "$PIDFILE" ]
then
    kill "`cat "$PIDFILE"`"
fi

echo $$ > "$PIDFILE"




USER="*******"
PASS="K*******"
HOST="198.*******"
PORT=22
REMOTE_DIR1="/home/user/downloads/LFTP/TV_FAST"
LOCAL_DIR1="/cygdrive/c/users/MiniPC/Desktop/TV_Temp"
REMOTE_DIR2="/home/user/downloads/LFTP/Movies_FAST"
LOCAL_DIR2="/cygdrive/c/users/MiniPC/Desktop/Movies_Temp"
REMOTE_DIR3="/home/user/downloads/LFTP/TV"
REMOTE_DIR4="/home/user/downloads/LFTP/Movies"
# If the target (local) directory ends with a slash (except the root),
# the source (remote) base name is appended to target directory name.
# In most cases you will NOT want to end with a '/'

# number of parallel files and segments to transfer, and minimum chunk size
NFIL=1
NSEG=10
MINCHUNK=1M

LOG="${HOME}/.lftp-seedbox-sync-get.log"
LOCKF="/tmp/lftp-mirror-get.lock"

echo "${0} Starting at $(date)"

trap "rm -f ${LOCKF}" SIGINT SIGTERM
if [ -e "${LOCKF}" ]; then
  echo "*** ERROR: ${0} is already running...Exiting..."
  exit 1
else
  touch "${LOCKF}"
  lftp -p ${PORT} -u "${USER},${PASS}" sftp://${HOST} << EOF
  mv "${REMOTE_DIR1}" "${REMOTE_DIR1}_lftp"
  mkdir -p "${REMOTE_DIR1}"
  set ftp:list-options -a
  set pget:min-chunk-size ${MINCHUNK}
  set pget:default-n ${NSEG}
  set mirror:use-pget-n ${NSEG}
  set mirror:parallel-transfer-count ${NFIL}
  set mirror:parallel-directories yes
  set net:limit-total-rate 1750000
  mirror -c --log="${LOG}" "${REMOTE_DIR1}_lftp" "${LOCAL_DIR1}"
  rm -rf "${REMOTE_DIR1}_lftp"


  lftp -p ${PORT} -u "${USER},${PASS}" sftp://${HOST} << EOF
  mv "${REMOTE_DIR2}" "${REMOTE_DIR2}_lftp"
  mkdir -p "${REMOTE_DIR2}"
  set ftp:list-options -a
  set pget:min-chunk-size ${MINCHUNK}
  set pget:default-n ${NSEG}
  set mirror:use-pget-n ${NSEG}
  set mirror:parallel-transfer-count ${NFIL}
  set mirror:parallel-directories yes
  set net:limit-total-rate 1750000
  mirror -c --log="${LOG}" "${REMOTE_DIR2}_lftp" "${LOCAL_DIR2}"
  rm -rf "${REMOTE_DIR2}_lftp"

  lftp -p ${PORT} -u "${USER},${PASS}" sftp://${HOST} << EOF
  mv "${REMOTE_DIR3}" "${REMOTE_DIR3}_lftp"
  mkdir -p "${REMOTE_DIR3}"
  set ftp:list-options -a
  set pget:min-chunk-size ${MINCHUNK}
  set pget:default-n ${NSEG}
  set mirror:use-pget-n ${NSEG}
  set mirror:parallel-transfer-count ${NFIL}
  set mirror:parallel-directories yes
  set net:limit-total-rate 1250000
  mirror -c --log="${LOG}" "${REMOTE_DIR3}_lftp" "${LOCAL_DIR1}"
  rm -rf "${REMOTE_DIR3}_lftp"

  lftp -p ${PORT} -u "${USER},${PASS}" sftp://${HOST} << EOF
  mv "${REMOTE_DIR4}" "${REMOTE_DIR4}_lftp"
  mkdir -p "${REMOTE_DIR4}"
  set ftp:list-options -a
  set pget:min-chunk-size ${MINCHUNK}
  set pget:default-n ${NSEG}
  set mirror:use-pget-n ${NSEG}
  set mirror:parallel-transfer-count ${NFIL}
  set mirror:parallel-directories yes
  set net:limit-total-rate 1250000
  mirror -c --log="${LOG}" "${REMOTE_DIR4}_lftp" "${LOCAL_DIR2}"
  rm -rf "${REMOTE_DIR4}_lftp"
  quit
EOF
  rm -f "${LOCKF}"
  trap - SIGINT SIGTERM
  echo "${0} Finished at $(date)"
  rm "$PIDFILE"
  exit 0
fi