#!/bin/bash
SPATH=/scripts
SERVER=$1
SERVERKEY=$2
SERVERHASH=$3
SERVERURL=$4

if [ "$4" == "" ]; then
   echo Aufruf:
   echo "  $0 <SERVER> <KEY> <HASH> <URL>"
   echo "Beispiele"
   echo "  $0 DAGOBERT \"H4565-O0VPE-A3KTI\" \"cca255c16db3b2ab1429e00416568d67513c75ff\" http://groupoffice.agadmin.de"
   echo "  $0 DAISY    \"KTV9G-5XAFA-CKQNB\" \"1a6bede9c48d9e0e188acf59c7b01b33d17e1813\" https://mscp.agadmin.de:4443"
   echo ""
   exit
fi

Pushover () {
   HOST=$1
   MSG=$2
   echo "Send Pushover Message"
   curl -s --form-string "token=aBxDT9DHgzq1CboHVMJdRAtZdi8XbB" --form-string "user=uMwPrXwN7hLbFe6GgoQTctdwzso3TP" --form-string "message=$MSG" --form-string "title=$HOST" --form-string "url=https://vpanel.colorhost.de" --form-string "url_title=colorhost vPanel" https://api.pushover.net/1/messages.json
}

ServerStatus () {
   KEY=$1
   HASH=$2
   STAT=`curl --connect-timeout 3 --max-time 5 -s "https://vpanel.colorhost.de:5656/api/client/command.php?action=status&key=$KEY&hash=$HASH" | perl -pe's/.*<statusmsg>(.*)<\/statusmsg>.*/$1/'`
   if [ "$STAT" == "online" ]; then
     return 1
   fi
   return 0
}

ServerAction () {
   KEY=$1
   HASH=$2
   ACTION=$3
   STAT=`curl --connect-timeout 3 --max-time 5 -s "https://vpanel.colorhost.de:5656/api/client/command.php?action=$ACTION&key=$KEY&hash=$HASH" | perl -pe's/.*<statusmsg>(.*)<\/statusmsg>.*/$1/'`
}

GetHTMLHeader () {
   URL=$1
   curl --connect-timeout 3 --max-time 5 -sI "$URL" > /dev/null
   if [ "$?" == "0" ]; then
     return 1
   fi
   return 0
}

WE=0
SE=0
OWE=0
OSE=0
while [ 1 ]; do
   echo `date`
   echo "Check Webpage $SERVERURL"
   GetHTMLHeader $SERVERURL
   RESPONSE=$?
   if [ "$RESPONSE" == "1" ]; then
      WE=0
      SE=0
      if [ "$OWE" == "1" ]; then
         echo "Webpage $SERVERURL recovered"
         Pushover $SERVER "Webpage $SERVERURL recovered"
         OWE=0
      else
         echo "Webpage $SERVERURL up"
      fi
   else
      (( WE++ ))
      if [ "$OWE" == "0" ]; then
         OWE=1
         echo "Webpage $SERVERURL went down"
         Pushover $SERVER "Webpage $SERVERURL went down"
      else
         echo "Webpage $SERVERURL down"
      fi
   fi
  
   echo "Check Server $SERVER" 
   ServerStatus $SERVERKEY $SERVERHASH
   STATUS=$?
   if [ "$STATUS" == "1" ]; then
      SE=0
      if [ "$OSE" == "1" ]; then
         echo "Server $SERVER recovered"
         Pushover $SERVER "Server recovered"
         OSE=0
      else
         echo "Server $SERVER up"
      fi
   else
      (( SE++ ))
      if [ "$OSE" == "0" ]; then
         OSE=1
         echo "Server $SERVER went down"
         Pushover $SERVER "Server went down"
      else
         echo "Server $SERVER down"
      fi
   fi

   if [ "$SE" -gt "3" ]; then
      echo "Server reboot initiated for $SERVER"
      Pushover $SERVER "Server reboot initiated"
      ServerAction $SERVERKEY $SERVERHASH "reboot"
      ServerAction $SERVERKEY $SERVERHASH "boot"
      SE=0
      sleep 10
   else 
      if [ "$WE" -gt "3" ] && [ "$SE" == "0" ]; then
         echo "Apache restart initiated on $SERVER"
         Pushover $SERVER "Apache restart initiated"
         ssh -i /home/andre/.ssh/id_rsa andre@$SERVER.agadmin.de 'sudo /etc/init.d/apache2 restart' &
         sleep 5
      fi

      if [ "$WE" -gt "6" ] && [ "$SE" == "0" ]; then
         echo "Server reboot initiated for $SERVER"
         Pushover $SERVER "Server reboot initiated"
         ServerAction $SERVERKEY $SERVERHASH "reboot"
         ServerAction $SERVERKEY $SERVERHASH "boot"
         SE=0
         sleep 10
      fi
   fi
   sleep 60 
   echo ""

done