Asterisk Check Offline Extensions

online.sh

OFFS="";
NOW=$(date +%H:%M)

SENDER="voip@email.com"
RECIP="user@email.com"

## MORNING
MORN_S="09:30"
MORN_E="12:30"

## AFTERNOON
NOON_S="13:30"
NOON_E="18:00"


## Check for Hours
function go {
  echo "TIME: $NOW";
  if ( [[ "$NOW" > "$MORN_S" ]] && [[ "$NOW" < "$MORN_E" ]] ) || ( [[ "$NOW" > "$NOON_S" ]] && [[ "$NOW" < "NOON_E" ]] ); then
    isonline;
    if [ ! -z "$OFFS" ]; then
      mail;
    fi;
  else
    exit 0;
  fi
}

function isonline {
  PEERS=$(/usr/sbin/asterisk -x "sip show peers" | sed -n '1!p' | sed '$d')
  while IFS= read -r PEER; do
    EXTN=$(echo $PEER | awk '{ print $1; }')
    
    OK=$(echo $PEER | awk '{ print $8; }')
    if [ -z "$OK" ] || [ $EXTN == "SPA400" ] || [ $EXTN == "301/301" ]; then
      continue;
    fi
    
    if [ ! $OK == "OK" ]; then
      echo "$EXTN is OFFLINE"
      OFFS+="$PEER\r\n"
    fi
  
  done <<< "$PEERS"
}

function mail {
  FILE="/tmp/alive_mail";
  mailbody="The Following Extensions Are Offline:\r\n\r\n$OFFS"
  echo "From: $SENDER" > $FILE
  echo "To: $RECIP" >> $FILE
  echo "Subject: Offline Extensions @ $NOW" >> $FILE
  echo "" >> $FILE
  echo -e $mailbody >> $FILE;
  cat $FILE | /usr/sbin/sendmail -t;
  rm -rf $FILE;
}

## MAIN
go;