#!/bin/bash
TIMESTAMP=$(date)
PATH=/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

DROPBOXLOG=a
TRANSFERLOG=b
TEMPDIR=c
BACKUPDIR=d
DROPDIR=e

SFTPSERVER="a"
SFTPUSER="b"
SFTPPASS="c"

# Write initial time stamp to both logs.
echo "$TIMESTAMP ---Forms Instance Begin---" | tee -a "$TRANSFERLOG" >> "$DROPBOXLOG"

# Download files off sftp server.
echo ">> Checking SFTP server for new files..." >> "$TRANSFERLOG"
/usr/bin/expect <<EOF 2>&1 | tee -a "$TRANSFERLOG"
spawn sftp $SFTPUSER@$SFTPSERVER
expect  {
        timeout {puts "Connection timed out."; exit}
        "password:"
        }
send "$SFTPPASS\n"
expect "\nsftp>"
send "ls -l\n"
expect  {
        "*root*\nsftp>" {
                send "lcd '$TEMPDIR'\n"
                expect "\nsftp>"
                send "mget *\n"
                expect "\nsftp>"
                }
        "\nsftp>"
        }
send "bye\n"
expect "\n"
expect eof
EOF

echo ">> Done.  " | tr -d "\n" >> "$TRANSFERLOG"

# Did we download any files?
if [ $(ls -F $TEMPDIR | grep -v \/ | wc -l) != "0" ]; then

# Yes we did, so delete only the files downloaded from the server...
echo "Deleting downloaded files from server..." >> "$TRANSFERLOG"

find $TEMPDIR -maxdepth 1 -type f -printf "%f\n" | while read DELFILE; do

/usr/bin/expect <<EOF 2>&1 | tee -a "$TRANSFERLOG"
spawn sftp $SFTPUSER@$SFTPSERVER
expect {
        timeout {puts "Connection timed out."; exit}
        "password:"
        }
send "$SFTPPASS\n"
expect "\nsftp>"
send "rm '$DELFILE'\n"
expect "\nsftp>"
send "bye\n"
expect "\n"
expect eof
EOF

done

# ...and do move and copy operations locally.
ls -lh "$TEMPDIR" | grep -i "^-" >> "$DROPBOXLOG"

echo ">> Done.  Copying files to drop box..." >> "$TRANSFERLOG"
find "$TEMPDIR" -maxdepth 1 -type f | while read CPFILE; do
cp -v "$CPFILE" "/var/dropbox/files/$DROPDIR" >> "$TRANSFERLOG"
done

echo ">> Done.  Moving files to backup directory..." >> "$TRANSFERLOG"
find "$TEMPDIR" -maxdepth 1 -type f | while read MVFILE; do
mv -v "$MVFILE" "$BACKUPDIR" >> "$TRANSFERLOG"
done

echo ">> All operations complete." >> "$TRANSFERLOG"

# No we didn't, so don't do anything with the sftp server.
else echo "No files transferred." >> "$TRANSFERLOG"

fi

# Write concluding time stamp to both logs.
echo "$TIMESTAMP ---Forms Instance End---" | tee -a "$TRANSFERLOG" >> "$DROPBOXLOG"