#!/bin/bash

LOGDIR="/var/log/recordshell"
LOGGING_PID="$$"
FILEPREFIX="$LOGDIR/$(date '+%Y-%m-%d')/$(date '+%Y-%m-%d_%H-%M-%S')-$LOGGING_PID"; 
EXTRA_ARGS="-c 'su -c /bin/bash $SUDO_USER'"

CFG_FILE="/etc/recordshell"

if ( bash $CFG_FILE &> /dev/null );then
   source $CFG_FILE;
else
   echo "error in configfile  $CFG_FILE"
   exit 1
fi

mkdir -p $FILEPREFIX
if [ "$?" != "0" ];then
   echo "Unable to create directory structure $FILEPREFIX"
   exit 1
fi

SUDO_MSG=""
if [ -n "$SUDO_USER" ];then
   SUDO_MSG=", (sudo user $SUDO_USER, sudo command $SUDO_COMMAND)"
fi
echo "*********************************"
logger -s -t recordshell "[$LOGGING_PID] Starting logged shell session: ${FILEPREFIX}/{typescript,timing} $SUDO_MSG"
set -x
script $EXTRA_ARGS -e -q -f -t ${FILEPREFIX}/typescript 2>${FILEPREFIX}/timing
set +x 
logger -s -t recordshell "[$LOGGING_PID] Finished logged shell session: ${FILEPREFIX}/{typescript,timing} $SUDO_MSG"
echo "*********************************"

gzip ${FILEPREFIX}/typescript
if [ "$?" != "0" ];then
   logger -s -t recordshell "[$LOGGING_PID] compression of ${FILEPREFIX}/typescript failed"
else
   logger -s -t recordshell "[$LOGGING_PID] compression of ${FILEPREFIX}/typescript successful (MD5SUM $(md5sum ${FILEPREFIX}/typescript.gz|awk '{print $1}'))"
fi

gzip ${FILEPREFIX}/timing
if [ "$?" != "0" ];then
   logger -s -t recordshell "[$LOGGING_PID] compression of ${FILEPREFIX}/timing failed"
else
   logger -s -t recordshell "[$LOGGING_PID] compression of ${FILEPREFIX}/timing successful (MD5SUM $(md5sum ${FILEPREFIX}/timing.gz|awk '{print $1}'))"
fi
logger -s -t recordshell "[$LOGGING_PID] review session with: scriptreplay -t ${FILEPREFIX}/{timing.gz,typescript.gz}"