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Current File : //sbin/opendkim-reportstats
#!/bin/sh
#
# Copyright (c) 2012, The Trusted Domain Project.  All rights reserved.
# 
# Script to upload OpenDKIM statistics data.  Original contributed
# by John Wood.
#
#

##
##  opendkim(8) configuration file location
##

OPENDKIMCONFIG="/etc/mail/opendkim.conf"

##
##  Owner and group of the statistics file
##  (Leave empty to skip the re-creation step and let opendkim(8) do it)
##

OPENDKIMDATOWNER="opendkim:opendkim"

##  ===========================================
##  NO USER SERVICEABLE PARTS BEYOND THIS POINT
##  ===========================================

PROGNAME=`basename $0`

OPENDKIMSTATS=`awk '$1 == "Statistics" { print $2 }' $OPENDKIMCONFIG`
if [ x"$OPENDKIMSTATS" = x"" ]
then
	echo "${PROGNAME}: can't determine statistics file location from ${OPENDKIMCONFIG}"
	exit 1
fi

OPENDKIMSTATSDIR=`dirname $OPENDKIMSTATS`
OPENDKIMSTATSFILE=`basename $OPENDKIMSTATS`

REPORTERNAME="OpenDKIM Filter User"
REPORTEREMAIL="<`whoami`@$HOSTNAME>"

UNIXDATE=`date +%s`
HOSTNAME=`hostname`

OPENDKIMSTATSDAT="${OPENDKIMSTATSDIR}/${OPENDKIMSTATSFILE}"
REPORTSTUB="${OPENDKIMSTATSDIR}/report_stub.txt"
GNUPGDIR="${OPENDKIMSTATSDIR}/.gnupg"

STATEMAIL="OpenDKIM Statistics Reporting Key <stats-report@opendkim.org>"
STATEMAILSIMPLE="stats-report@opendkim.org"
REGISTEREMAIL="OpenDKIM Stats Registration <stats-registration@opendkim.org>"

SENDMAILFLAGS="-t -f $REPORTEREMAIL"

ODKGNUPGURL="http://www.opendkim.org/stats/stats_opendkim_org.pub"
ODKGNUPGMD5URL="http://www.opendkim.org/stats/stats_opendkim_org.pub.md5"

ODKGNUPGCERT="${GNUPGDIR}/opendkim_org.pem"
ODKGNUPGMD5="${GNUPGDIR}/stats_opendkim_org.pub.md5"

OPENDKIMSTATS="2.11.0"

#
# VERSION -- output version string
#

version()
{
        echo "${PROGNAME} v{OPENDKIMSTATS}"
        exit 0
}

#
# USAGE -- output usage message
#

usage()
{
        echo "${PROGNAME}: usage: ${PROGNAME} <mode>"
	echo
	echo "Valid modes:"
        echo 
        echo "  -register          Downloads the opendkim.org public key,"
	echo "                     generates stats reporting GPG setup, and"
	echo "                     sends a registration request"
        echo
        echo "  -sendregistration  Sends pre-setup GPG registration to"
	ecoh "                     opendkim.org in case initial registration"
	echo "                     has problems sending email"
        echo
        echo "  -sendstats         Sends latest OpenDKIM stats to opendkim.org"
	echo 
        echo "  -version           Displays the version and exits"
        exit 0
}

#
# SET_PATHS -- set PATH and SENDMAIL variables
#

set_paths()
{
	# Try to ensure proper execution by adding likely paths

	PATH=$PATH:/usr/sbin:/sbin:/usr/bin:/usr/lib
	for i in /usr/local/bin /usr/local/sbin /opt/local/bin \
		 /opt/local/sbin /usr/sfw/bin /usr/sfw/sbin
	do 
		if [ -d "$i" ]; then
			PATH=$PATH:$i
			export PATH
		fi
	done

	# Solaris
	if [ -f '/usr/lib/sendmail' ]
	then
		SENDMAIL="/usr/lib/sendmail"
	else
		SENDMAIL="/usr/sbin/sendmail"
	fi
}

#
# CHECK_OPENSSL -- try to find the openssl binary
#

check_openssl()
{
	OPENSSL=`which openssl`
	if [ -z "$OPENSSL" ]; then
		echo "${PROGNAME}: cannot locate openssl binary"
		exit 1
	fi
}

#
# CHECK_GPG -- try to find the gpg binary
#
check_gpg()
{
	GPG=`which gpg`
	if [ -z "$GPG" ]; then
		echo "${PROGNAME}: cannot locate gpg binary"
		exit 1
	fi
}

#
# CHECK_GPG_SETUP -- verify the OpenDKIM public key is in the local keyring
#

check_gpg_setup()
{
	GPGVERIFY=`gpg --homedir="$GNUPGDIR" --no-permission-warning --list-keys | \
		grep "$STATEMAIL" | \
		awk -FO '{print "O"$2}'`

	if [ "$GPGVERIFY" != "$STATEMAIL" ]
	then
		echo "${PROGNAME}: could not verify imported GPG key for $STATEMAIL"
		echo "${PROGNAME}: run \"${PROGNAME} -register\" first"
		exit 1
	fi

	GPGSETUP=`gpg --homedir="$GNUPGDIR" --no-permission-warning --list-keys | \
		grep -v "$STATEMAIL" | \
		grep "OpenDKIM"`
	if [ -z "$GPGSETUP" ]
	then
		echo "${PROGNAME}: GPG setup incomplete"
		echo "${PROGNAME}: run \"${PROGNAME}\" again"
		exit 1
	fi
}

# 
# CHECK_WEB_APP -- figure out what web "GET" application is available
# 

check_web_app()
{
	WGET=`which wget`
	if [ ! -z "$WGET" ]
	then
		WEBAPP=wget
	elif [ -z "$WGET" ]
	then
		CURL=`which curl`
	        if [ -z "$CURL" ]
		then
			echo "${PROGNAME}: cannot locate wget or curl"
			exit 1
        	fi

		WEBAPP=curl
	fi
}

# 
# GET_OPENDKIM_ORG_PUB_CERT -- go get the OpenDKIM public key for signing
#

get_opendkim_org_pub_cert()
{
	# safety net
	if [ $? != 0 ]
	then
		echo "${PROGNAME}: cannot locate wget or curl"
		exit 1
	fi

	# get the md5 sum file first 
	if [ x"$WEBAPP" = x"wget" ]
	then
		"$WEBAPP" -q -c --tries=10 -T 340 \
			-O "$ODKGNUPGMD5" "$ODKGNUPGMD5URL" 
	elif [ "$WEBAPP" = curl ]
	then
		"$WEBAPP" -s -m 340 "$ODKGNUPGMD5URL" > "$ODKGNUPGMD5"
	fi

	if [ $? != 0 ]
	then  
		echo "${PROGNAME}: failed to retrieve ${ODKGNUPGMD5URL}"
		exit 1
	fi

	# get the public cert 
	if [ "$WEBAPP" = wget ]
	then
		"$WEBAPP" -q -c --tries=10 -T 340 \
			-O "$ODKGNUPGCERT" "$ODKGNUPGURL"
	elif [ "$WEBAPP" = curl ]
	then
		"$WEBAPP" -s -m 340 "$ODKGNUPGURL" > "$ODKGNUPGCERT"
	fi

	if [ $? != 0 ]
	then 
		echo "${PROGNAME}: failed to retrieve ${ODKGNUPGURL}"
		exit 1
	fi

	# verify the md5 sum of the public cert
	if [ -f "$ODKGNUPGMD5" ] && [ -f "$ODKGNUPGCERT" ]
	then 
		ODKORGSUM=`cat "$ODKGNUPGMD5"`
		LOCALSUM=`"$OPENSSL" md5 "$ODKGNUPGCERT" | awk '{print $2}'`
	else
		echo "${PROGNAME}: $ODKGNUPGMD5 or ${ODKGNUPGCERT} absent/unreadable"
		exit 1
	fi

	if [ "$ODKORGSUM" != "$LOCALSUM" ]
	then
		   echo "${PROGNAME}: MD5 checksum for $ODKGNUPGCERT failed"
		   echo "${PROGNAME}: (expecting ${ODKORGSUM}, got ${LOCALSUM})"
		exit 1
	fi 
}

#
# INPUT_CONTACT_INFO -- prompt for details we want to store in the key
# 

input_contact_info()
{
	NAMEVALID=0
	INPUTNAME=""
	EMAILVALID=0
	INPUTEMAIL=""
	NAMELENGTH=0
	CONTACTEMAIL=""

	until [ "$NAMEVALID" = 1 ] 
	do
		printf "Please enter your name: "
		read INPUTNAME
		NAMELENGTH=`echo "$INPUTNAME" | wc -c`
		if [ "$NAMELENGTH" -lt 5 ]
		then
			INPUTNAME=""
			echo "${PROGNAME}: name must be at least five characters long"
		fi
		if [ ! -z "$INPUTNAME" ]
		then
			NAMEVALID=1
		fi
	done

	until [ "$EMAILVALID" = 1 ]
	do
		printf "Please enter your contact email for OpenDKIM stats: "
		read INPUTEMAIL
		CONTACTEMAIL=`echo $INPUTEMAIL | egrep '[^[:space:]]+\>@[a-zA-Z0-9_\.]+\.[a-zA-Z]{2,3}'`
		if [ ! -z "$CONTACTEMAIL" ]
		then
			EMAILVALID=1
		else
			echo "${PROGNAME}: invalid email address syntax"
		fi
	done 
}

# 
# OPENDKIM_GPG_IMPORT -- set up GPG and import the OpenDKIM key
#

opendkim_gpg_import()
{
	echo "${PROGNAME}: retrieving opendkim.org public GPG certificate"
	get_opendkim_org_pub_cert
	if [ $? != 0 ]
	then
		echo "${PROGNAME}: failed to retrieve opendkim.org public GPG certificate"
   		exit 1
	fi

	echo "${PROGNAME}: importing opendkim.org public GPG certificate"
	if [ ! -d "$GNUPGDIR" ]
	then
		echo "${PROGNAME}: directory ${GNUPGDIR} missing"
		exit 1
	fi
	cat > "${GNUPGDIR}/gpg.conf" <<EOF
no-secmem-warning
keyserver-options no-auto-key-retrieve
no-random-seed-file
trust-model always
no-permission-warning
EOF
	gpg --homedir="$GNUPGDIR" --no-permission-warning --import \
		--trust-model always "$ODKGNUPGCERT"
	if [ $? != 0 ]
	then
		echo "${PROGNAME}: certificate import failed"
		exit 1
	fi

	GPGVERIFY=`gpg --homedir="$GNUPGDIR" --no-permission-warning --list-keys | \
		grep "$STATEMAIL" | awk -FO '{print "O"$2}'`
	if [ "$GPGVERIFY" != "$STATEMAIL" ]
	then
		echo "${PROGNAME}: could not verify imported GPG key for: ${STATEMAIL}"
		exit 1
	fi
}

#
# REGISTER -- generate a signing key and send it to OpenDKIM
# 
register()
{
	mkdir -p "$GNUPGDIR"
	if [ $? != 0 ]
	then
		echo "${PROGNAME}: unable to create ${GNUPGDIR}"
		exit 1
	fi

	chmod 700 "$GNUPGDIR"

	echo "${PROGNAME}: configuring local GPG for statstics reporting"

	# get name/email for non-interactive GPG cert/key generation
	until [ x"$AGREE" = x"y" ]
	do
		input_contact_info
		printf "$INPUTNAME <$INPUTEMAIL> is correct? [y/n]: " 
		read AGREE
	done

	if [ -z "$INPUTNAME" ] || [ -z "$INPUTEMAIL" ]
	then
		echo "${PROGNAME}: missing contact information, cannot generate GPG certificates"
		echo "${PROGNAME}: run \"${PROGNAME} -register\""
		exit 1
	fi

	# Generate the key
	INPUTFILE="${GNUPGDIR}/${UNIXDATE}.temp.gpg"
	echo "# input file to generate GnuPG keys automatically" > $INPUTFILE 
	echo >> $INPUTFILE
	echo "%echo Generating a standard key" >> $INPUTFILE 
	echo >> $INPUTFILE
	echo "#######################################" >> $INPUTFILE 
	echo "# parameters for the key" >> $INPUTFILE 
	echo >> $INPUTFILE
	echo "Key-Type: DSA" >> $INPUTFILE 
	echo "Key-Length: 1024" >> $INPUTFILE 
	echo "Subkey-Type: ELG-E" >> $INPUTFILE 
	echo "Subkey-Length: 2048" >> $INPUTFILE 
	echo >> $INPUTFILE
	echo "Name-Real: $INPUTNAME" >> $INPUTFILE 
	echo "Name-Comment: OpenDKIM GnuPG key" >> $INPUTFILE 
	echo "Name-Email: $INPUTEMAIL" >> $INPUTFILE 
	echo >> $INPUTFILE
	echo "Expire-Date: 0" >> $INPUTFILE 
	echo >> $INPUTFILE
	echo "######################################" >> $INPUTFILE 
	echo >> $INPUTFILE
	echo "# the keyring files" >> $INPUTFILE 
	echo "%pubring ${GNUPGDIR}/pubring.gpg" >> $INPUTFILE 
	echo "%secring ${GNUPGDIR}/secring.gpg" >> $INPUTFILE 
	echo >> $INPUTFILE
	echo "# perform key generation" >> $INPUTFILE 
	echo "%commit" >> $INPUTFILE 
	echo >> $INPUTFILE
	echo "%echo done" >> $INPUTFILE 
	echo "#EOF" >> $INPUTFILE 
	echo >> $INPUTFILE

	if [ ! -f "$INPUTFILE" ]
	then
		echo "${PROGNAME}: failed to create temporary file for GPG key generation"
		exit 1
	fi

	# call GPG on the temp file
	echo "${PROGNAME}: generating signing key"
	gpg --batch --gen-key --homedir="$GNUPGDIR" \
		--keyring="${GNUPGDIR}/pubring.gpg" \
		--secret-keyring="${GNUPGDIR}/secring.gpg" "$INPUTFILE"

	if [ $? != 0 ]
	then
		echo "${PROGNAME}: signing key generation failed"
		exit 1
	fi

	rm "$INPUTFILE"
}

#
# NAME_FROM_KEY -- try to get name/email from gnupg key
#

name_from_key()
{
	REPORTER=`gpg --homedir="$GNUPGDIR" --list-keys | grep 'OpenDKIM GnuPG key' | sed 's/^uid *//'`
	if [ ! -z "$REPORTER" ]
	then
		REPORTERNAME=`echo $REPORTER | awk -F\< '{print $1}'`
		REPORTEREMAIL=`echo $REPORTER | awk -F\< '{print "<"$2}'` 
		if [ -z "$REPORTERNAME" ] || [ -z "$REPORTEREMAIL" ]
		then
			REPORTERNAME="OpenDKIM Filter User"
			REPORTEREMAIL="<`whoami`@$HOSTNAME>"
		fi
	fi

	# re-eval flags to set the envelope as well
	SENDMAILFLAGS="-t -f $REPORTEREMAIL"
}

#
# SEND_REGISTRATION -- send registration
# 
send_registration()
{
	echo "${PROGNAME}: preparing signing key submission"
	gpg --batch -a --export --homedir="$GNUPGDIR" \
		--out="/tmp/$HOSTNAME.public.key"
	if [ $? != 0 ]
	then
		echo "${PROGNAME}: unable to export public key"
		exit 1 
	fi

	if [ -f /tmp/$HOSTNAME.public.key ]
	then
		mv /tmp/$HOSTNAME.public.key "${GNUPGDIR}"/
	fi 

	# encrypt public key and prep for sending to OpenDKIM
	gpg -a --homedir="$GNUPGDIR" -o \
		"${GNUPGDIR}/${HOSTNAME}.${UNIXDATE}.gpg" -e \
		-r "$STATEMAILSIMPLE" -- "${GNUPGDIR}/${HOSTNAME}.public.key" 2>/dev/null
	if [ ! -f "${GNUPGDIR}/${HOSTNAME}.${UNIXDATE}.gpg" ]
	then
		echo "${PROGNAME}: encrypted key generation failed"
   		rm /tmp/"{$HOSTNAME}".public.key
		exit 1
	fi

	name_from_key

	# create a one time stub
	echo "From: ${REPORTERNAME} ${REPORTEREMAIL}" > $REPORTSTUB
	echo "To: ${REGISTEREMAIL}" >> $REPORTSTUB
	echo "Subject: OpenDKIM stats reporting registration from ${REPORTEREMAIL}" >> $REPORTSTUB

	# send registration email
	cat $REPORTSTUB ${GNUPGDIR}/${HOSTNAME}.${UNIXDATE}.gpg | \
		${SENDMAIL} ${SENDMAILFLAGS}
	if [ $? != 0 ]
	then
		echo "${PROGNAME}: unable to send registration email"
		exit 1
	fi

	echo "${PROGNAME}: registration submitted to OpenDKIM"

	rm ${GNUPGDIR}/${HOSTNAME}.${UNIXDATE}.gpg
	rm ${GNUPGDIR}/${HOSTNAME}.public.key
	rm ${REPORTSTUB}
}

#
# SEND_STATS -- send the current stats batch
#

send_stats()
{
	if [ ! -s "$OPENDKIMSTATSDAT" ]
	then
		echo "{$PROGNAME}: ${OPENDKIMSTATSDAT} empty or missing"
		exit 1
	fi

	GPGVERIFY=`gpg --homedir="$GNUPGDIR" --no-permission-warning --list-keys | \
		grep "$STATEMAIL" | awk -FO '{print "O"$2}'`
	if [ "$GPGVERIFY" != "$STATEMAIL" ]
	then
		echo "${PROGNAME}: could not verify imported GPG key for: ${STATEMAIL}"
		echo "${PROGNAME}: run \"${PROGNAME} -register\""
		exit 1
	fi

	name_from_key

	echo "From: ${REPORTERNAME} ${REPORTEREMAIL}" > $REPORTSTUB
	echo "To: $STATEMAIL" >> $REPORTSTUB
	echo "Subject: opendkim-stats report from ${HOSTNAME} at ${UNIXDATE}" >> $REPORTSTUB

	if [ ! -s "$REPORTSTUB" ]
	then
		echo "${PROGNAME}: report stub empty or missing"
		exit 1
	fi

	# clearsign statistics data
	gpg --homedir="$GNUPGDIR" \
		--output "${GNUPGDIR}/${OPENDKIMSTATSFILE}.${HOSTNAME}.${UNIXDATE}.gpg" \
		--clearsign $OPENDKIMSTATSDAT
   	if [ $? != 0 ]
	then 
		echo "${PROGNAME}: GPG clearsign of stats file ${OPENDKIMSTATSDAT} failed"
		rm $REPORTSTUB
		exit 1
	fi
	if [ ! -f "${GNUPGDIR}/${OPENDKIMSTATSFILE}.${HOSTNAME}.${UNIXDATE}.gpg" ]
	then
		echo "${PROGNAME}: GPG clearsign of stats file ${OPENDKIMSTATSDAT} missing"
		rm $REPORTSTUB
		exit 1
	fi 
	cat $REPORTSTUB ${GNUPGDIR}/${OPENDKIMSTATSFILE}.${HOSTNAME}.${UNIXDATE}.gpg | \
		${SENDMAIL} ${SENDMAILFLAGS}
	if [ $? != 0 ]
	then
		echo "${PROGNAME}: sending of ${GNUPGDIR}/${OPENDKIMSTATSFILE}.${HOSTNAME}.${UNIXDATE}.gpg failed"
		exit 1
	fi 

	rm ${GNUPGDIR}/${OPENDKIMSTATSFILE}.${HOSTNAME}.${UNIXDATE}.gpg

	# change this to cp when testing
	mv $OPENDKIMSTATSDAT ${OPENDKIMSTATSDAT}.old
	if [ ! -z "$OPENDKIMDATOWNER" ]
	then
		touch $OPENDKIMSTATSDAT
		touch ${OPENDKIMSTATSDIR}/last_report
		chown $OPENDKIMDATOWNER $OPENDKIMSTATSDAT
		chmod 0660 $OPENDKIMSTATSDAT
	fi

	rm -f $REPORTSTUB

	echo "${PROGNAME}: OpenDKIM stats sent at `date`"

	exit 0
}

case "$1" in
        -register)
                set_paths
                check_openssl
                check_gpg
                check_web_app
                register
                opendkim_gpg_import
                send_registration
                ;;
        -sendregistration)
                set_paths
                check_openssl
                check_gpg
                check_gpg_setup
                send_registration
                ;;
        -sendstats)
                set_paths
                check_openssl
                check_gpg
                send_stats
                ;;
        -version)
                version
                ;;
        *)
                usage
esac
bypass 1.0, Devloped By El Moujahidin (the source has been moved and devloped)
Email: contact@elmoujehidin.net