#! /bin/sh

# collect spam statistics in .rrd files
#   [-x]	    debugging
#   [-q]	    quiet
#   [-S]	    read `cdcc stats` from stdin
#   [-h dcc_homedir]
#   [-D data-dir]   where to put the graphs and rrdtool files
#   [-s stats-file] save raw `cdcc stats` output in stats-file
#   [-t time]	    seconds since the Epoch
#   [-T @RRDTOOL@]
#		    see http://people.ee.ethz.ch/~oetiker/webtools/rrdtool/
#			or the FreeBSD package.
#   [-O rrdopts]    "--heartbeat X" or "--step Y"
#   [-i client-ID]  that DCC servers will accept
#   [-p password]   that DCC servers will accept
#   host1, host2, ... servers to ask for data


# Copyright (c) 2008 by Rhyolite Software, LLC
#
# This agreement is not applicable to any entity which sells anti-spam
# solutions to others or provides an anti-spam solution as part of a
# security solution sold to other entities, or to a private network
# which employs the DCC or uses data provided by operation of the DCC
# but does not provide corresponding data to other users.
#
# Permission to use, copy, modify, and distribute this software without
# changes for any purpose with or without fee is hereby granted, provided
# that the above copyright notice and this permission notice appear in all
# copies and any distributed versions or copies are either unchanged
# or not called anything similar to "DCC" or "Distributed Checksum
# Clearinghouse".
#
# Parties not eligible to receive a license under this agreement can
# obtain a commercial license to use DCC by contacting Rhyolite Software
# at sales@rhyolite.com.
#
# A commercial license would be for Distributed Checksum and Reputation
# Clearinghouse software.  That software includes additional features.  This
# free license for Distributed ChecksumClearinghouse Software does not in any
# way grant permision to use Distributed Checksum and Reputation Clearinghouse
# software
#
# THE SOFTWARE IS PROVIDED "AS IS" AND RHYOLITE SOFTWARE, LLC DISCLAIMS ALL
# WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL RHYOLITE SOFTWARE, LLC
# BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
# ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
# SOFTWARE.
#	Rhyolite Software DCC 1.3.103-1.27 $Revision$
#	@configure_input@

DCC_HOMEDIR=@prefix@
DEBUG=
# check the args once to get the home directory
while getopts "xqUSh:D:s:t:T:O:i:p:" c; do
    case $c in
	x) set -x; DEBUG=-x;;
	h) DCC_HOMEDIR="$OPTARG";;
	*) ;;
    esac
done
. $DCC_HOMEDIR/dcc_conf

QUIET=
UPDATERRD=
GET_ARGS=
DATADIR=$DCC_HOMEDIR/stats
STATSFILE=/dev/null
TS=N
RRDTOOL=@RRDTOOL@
RRDOPTS=
CLNT_ID="1"
PASSWD=""
USAGE="`basename $0`: [-xqUS] [-h homedir] [-D data-dir] [-s stats-file] [-t time]
    [-T rrdtool] [-O rrdopts] [-i client-ID] [-p password] host1 host2 ..."
OPTIND=1
while getopts "xqUSh:D:s:t:T:O:i:p:" c; do
    case $c in
	x) ;;
	q) QUIET="-q";;
	U) UPDATERRD=yes;;
	S) GET_ARGS="$GET_ARGS -S";;
	h) ;;
	D) DATADIR="$OPTARG";;
	s) STATSFILE="$OPTARG";;
	t) TS="$OPTARG";;
	T) RRDTOOL="$OPTARG";;
	O) RRDOPTS="$RRDOPTS $OPTARG";;
	i) CLNT_ID="$OPTARG";;
	p) PASSWD="$OPTARG";;
	*) echo "$USAGE" 1>&2; exit 1;;
    esac
done
shift `expr $OPTIND - 1 || true`
if test "$#" -eq 0; then
    echo "$USAGE" 1>&2
    exit 1
fi

cd $DATADIR

# generate a timestamp that can be used with new and old `touch` commands 
#   to give the .rrd and status files the right mtime
TTS=
if test -n "$TS" -a "$TS" != N; then
    if TTS=`date -r $TS '+%m%d%H%S'  2>/dev/null`; then : ;
    else
	# deal with systems that do not have `date -r`
	TTS=`@PERL@ -e "use POSIX qw(strftime);	       		\
	    print strftime '%m%d%H%S', localtime($TS);"`
    fi
fi

for HOST in $*; do
    HOST="`basename $HOST .rrd`"

    eval XSTATSFILE="$STATSFILE"
    if test "$PASSWD" != ""; then
	LINE=`$DCC_LIBEXEC/stats-get $GET_ARGS $DEBUG $QUIET		\
	    -s$XSTATSFILE -i$CLNT_ID -p "$PASSWD" $HOST`
    else
	LINE=`$DCC_LIBEXEC/stats-get $GET_ARGS $DEBUG $QUIET		\
	    -s$XSTATSFILE -i$CLNT_ID $HOST`
    fi
    if test -n "$TTS"; then
	touch $TTS XSTATSFILE
    fi

    FILE="$HOST.rrd"
    # update RRD file to include maximums
    if test -s "$FILE" -a -n "$UPDATERRD"				\
	&& test -z "`$RRDTOOL info $FILE 2>/dev/null			\
			    | grep '^rra.*cf = .MAX.'`"; then
	mv "$FILE" "$FILE.old"
	# get all but the final "</rrd>" line of the xml
	$RRDTOOL dump "$FILE.old" | sed -e '$d' >"$FILE.xml"
	# add a "MAX" database from a copy of the last "MIN" database
	$RRDTOOL dump "$FILE.old"					\
	    | sed -e 's@<cf> MIN </cf>@<rra><cf> MAX </cf>@p'		\
		    -e '1,/<cf> MAX <.cf>/d'				\
		    -e 's@<v> [0-9.+e]* </v>@<v> NaN </v>@g' >>"$FILE.xml"
	$RRDTOOL restore "$FILE.xml" "$FILE"
	rm "$FILE.xml"
    fi

    if test -n "$LINE"; then
	# create the RRD file if it does not exist
	if test ! -s "$FILE"; then
	    $DCC_LIBEXEC/dcc-stats-init $QUIET $DEBUG -h$DCC_HOMEDIR	\
		-D$DATADIR -T "$RRDTOOL" -O "$RRDOPTS" "$FILE"
	fi
	# do not add flood checksum counts to new database
	if test -z "`$RRDTOOL info $FILE | grep '^ds.flooded.*DERIVE'`"; then
	    LINE=`expr "$LINE" : '\(.*\):[0-9]*$'`
	fi
	$RRDTOOL update "$FILE" "$TS:$LINE"
	# ensure that the .rrd file has the right mtime
	if test -n "$TTS"; then
	    touch $TTS $FILE
	fi
    fi
done