#!/bin/sh

LOADFILE="$1"
FILEPERM="$2"
LOCALDR="$3"

CONFFILE="downloader.cfg"
CONFPATH="/mod/etc/conf/"

if [ ! -r "$CONFPATH$CONFFILE" ]; then
	echo "Error[downloader]: not configured" 1>&2
	exit 1
fi
. $CONFPATH$CONFFILE

echo $DOWNLOADER_SRVPRFX
echo $DOWNLOADER_SRVUSR
echo $DOWNLOADER_SRVPWD
echo $DOWNLOADER_SRVURL
echo $DOWNLOADER_SRVDIR
echo $DOWNLOADER_NREP
echo $DOWNLOADER_TWAIT


ISFTP=$(echo $DOWNLOADER_SRVPRFX | grep -c ftp://)
if [ $ISFTP -eq 1 ] ; then 
   if [ "$DOWNLOADER_SRVUSR" ] ; then
      if [ "$DOWNLOADER_SRVPWD" ] ; then
         SERVERSTR=ftp://$DOWNLOADER_SRVUSR:$DOWNLOADER_SRVPWD@$DOWNLOADER_SRVURL$DOWNLOADER_SRVDIR/
      else
         SERVERSTR=ftp://$DOWNLOADER_SRVUSR@$DOWNLOADER_SRVURL$DOWNLOADER_SRVDIR/
      fi
   else
      SERVERSTR=ftp://$DOWNLOADER_SRVURL$DOWNLOADER_SRVDIR/
   fi
else
   ISHTTP=$(echo $DOWNLOADER_SRVPRFX | grep -c http://)
   if [ $ISHTTP -eq 1 ] ; then 
      SERVERSTR=http://$DOWNLOADER_SRVURL$DOWNLOADER_SRVDIR/
   else
	  echo "$DOWNLOADER_SRVPRFX is wrong server prefix in $CONFPATH$CONFFILE"
	  exit 1
   fi    
fi
echo $SERVERSTR

LOADERROR=1 # erstmal als erfolglos definieren
II=1   # II zu 1 setzen
while test $II -le $DOWNLOADER_NREP    # While-Schleife, emulieren einer for-schleife II<NN
do
   echo "ping test $II of $DOWNLOADER_NREP. Waiting $DOWNLOADER_TWAIT sec. for $DOWNLOADER_SRVURL"
   sleep $DOWNLOADER_TWAIT
   if (ping -c 1 $DOWNLOADER_SRVURL) ; then
		echo -n "$LOADFILE.gz is downloading from $DOWNLOADER_SRVURL... "
        wget -q -O $LOCALDR/$LOADFILE.gz $SERVERSTR$LOADFILE.gz
        LOADERROR=$?       
        break   #  alles ok, raus aus der for-schleife
   fi
   II=`expr $II + 1`     # Zähler inkrementieren
done
if [ $LOADERROR -eq 1 ]; then
   echo "failed"
   echo "file $LOADFILE.gz could not be loaded"
   echo "echo $LOADFILE does not exist" > $LOCALDR/$LOADFILE
   chmod $FILEPERM $LOCALDR/$LOADFILE
   exit $LOADERROR
fi
echo "done"
echo -n "$LOADFILE.gz is unpacking... "
gzip -d $LOCALDR/$LOADFILE.gz
LOADERROR=$?
if [ $LOADERROR -eq 1 ]; then
   echo "failed"
   echo "file $LOADFILE.gz could not be unpacked"
   exit $LOADERROR
fi
echo "done"
echo -n "permitions for $LOADFILE are setting... "
chmod $FILEPERM $LOCALDR/$LOADFILE
LOADERROR=$?
if [ $LOADERROR -eq 1 ]; then
   echo "failed"
   echo "permissions for file $LOADFILE could not be set"
   exit $LOADERROR
fi
echo "done"
exit 0