# Copyright 1999-2015 Gentoo Foundation

# Distributed under the terms of the GNU General Public License v2

# $Id$

# Re dlz/mysql and threads, needs to be verified..

# MySQL uses thread local storage in its C api. Thus MySQL

# requires that each thread of an application execute a MySQL

# thread initialization to setup the thread local storage.

# This is impossible to do safely while staying within the DLZ

# driver API. This is a limitation caused by MySQL, and not the DLZ API.

# Because of this BIND MUST only run with a single thread when

# using the MySQL driver.

EAPI="5"

PYTHON_COMPAT=( python2_7 python3_3 python3_4 )

inherit python-r1 eutils autotools toolchain-funcs flag-o-matic multilib db-use user systemd

MY_PV="${PV/_p/-P}"

MY_PV="${MY_PV/_rc/rc}"

MY_P="${PN}-${MY_PV}"

SDB_LDAP_VER="1.1.0-fc14"

RRL_PV="${MY_PV}"

NSLINT_DIR="contrib/nslint-3.0a2/"

# SDB-LDAP: http://bind9-ldap.bayour.com/

DESCRIPTION="BIND - Berkeley Internet Name Domain - Name Server"

HOMEPAGE="http://www.isc.org/software/bind"

SRC_URI="ftp://ftp.isc.org/isc/bind9/${MY_PV}/${MY_P}.tar.gz

	doc? ( mirror://gentoo/dyndns-samples.tbz2 )"

#	sdb-ldap? (

#		http://ftp.disconnected-by-peer.at/pub/bind-sdb-ldap-${SDB_LDAP_VER}.patch.bz2

#	)"

LICENSE="GPL-2 ISC BSD BSD-2 HPND JNIC openssl"

SLOT="0"

KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~x86-fbsd ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"

IUSE="berkdb +caps dlz doc fetchlimit filter-aaaa fixed-rrset geoip gost gssapi idn ipv6

json ldap libressl mysql nslint odbc postgres python rpz seccomp selinux sit ssl static-libs

+threads urandom xml"

# sdb-ldap - patch broken

# no PKCS11 currently as it requires OpenSSL to be patched, also see bug 409687

REQUIRED_USE="postgres? ( dlz )

	berkdb? ( dlz )

	mysql? ( dlz !threads )

	odbc? ( dlz )

	ldap? ( dlz )

	gost? ( !libressl ssl )

	threads? ( caps )"

# sdb-ldap? ( dlz )

DEPEND="

	ssl? (

		!libressl? ( dev-libs/openssl:0[-bindist] )

		libressl? ( dev-libs/libressl )

	)

	mysql? ( >=virtual/mysql-4.0 )

	odbc? ( >=dev-db/unixODBC-2.2.6 )

	ldap? ( net-nds/openldap )

	idn? ( net-dns/idnkit )

	postgres? ( dev-db/postgresql:= )

	caps? ( >=sys-libs/libcap-2.1.0 )

	xml? ( dev-libs/libxml2 )

	geoip? ( >=dev-libs/geoip-1.4.6 )

	gssapi? ( virtual/krb5 )

	gost? ( >=dev-libs/openssl-1.0.0:0[-bindist] )

	seccomp? ( sys-libs/libseccomp )

	json? ( dev-libs/json-c )"

#	sdb-ldap? ( net-nds/openldap )

RDEPEND="${DEPEND}

	selinux? ( sec-policy/selinux-bind )

	|| ( sys-process/psmisc >=sys-freebsd/freebsd-ubin-9.0_rc sys-process/fuser-bsd )"

S="${WORKDIR}/${MY_P}"

# bug 479092, requires networking

RESTRICT="test"

pkg_setup() {

	ebegin "Creating named group and user"

	enewgroup named 40

	enewuser named 40 -1 /etc/bind named

	eend ${?}

}

src_prepare() {

	epatch "${FILESDIR}"/${P}-libressl.patch

	# Adjusting PATHs in manpages

	for i in bin/{named/named.8,check/named-checkconf.8,rndc/rndc.8} ; do

		sed -i \

			-e 's:/etc/named.conf:/etc/bind/named.conf:g' \

			-e 's:/etc/rndc.conf:/etc/bind/rndc.conf:g' \

			-e 's:/etc/rndc.key:/etc/bind/rndc.key:g' \

			"${i}" || die "sed failed, ${i} doesn't exist"

	done

#	if use dlz; then

#		# sdb-ldap patch as per  bug #160567

#		# Upstream URL: http://bind9-ldap.bayour.com/

#		# New patch take from bug 302735

#		if use sdb-ldap; then

#			epatch "${WORKDIR}"/${PN}-sdb-ldap-${SDB_LDAP_VER}.patch

#			cp -fp contrib/sdb/ldap/ldapdb.[ch] bin/named/

#			cp -fp contrib/sdb/ldap/{ldap2zone.1,ldap2zone.c} bin/tools/

#			cp -fp contrib/sdb/ldap/{zone2ldap.1,zone2ldap.c} bin/tools/

#		fi

#	fi

	# should be installed by bind-tools

	sed -i -r -e "s:(nsupdate|dig|delv) ::g" bin/Makefile.in || die

	# Disable tests for now, bug 406399

	sed -i '/^SUBDIRS/s:tests::' bin/Makefile.in lib/Makefile.in || die

	if use nslint; then

		sed -i -e 's:/etc/named.conf:/etc/bind/named.conf:' ${NSLINT_DIR}/nslint.{c,8} || die

	fi

	# bug #220361

	rm aclocal.m4

	rm -rf libtool.m4/

	eautoreconf

}

src_configure() {

	local myconf=""

	if use urandom; then

		myconf="${myconf} --with-randomdev=/dev/urandom"

	else

		myconf="${myconf} --with-randomdev=/dev/random"

	fi

	use geoip && myconf="${myconf} --with-geoip"

	# bug #158664

#	gcc-specs-ssp && replace-flags -O[23s] -O

	# To include db.h from proper path

	use berkdb && append-flags "-I$(db_includedir)"

	export BUILD_CC=$(tc-getBUILD_CC)

	econf \

		--sysconfdir=/etc/bind \

		--localstatedir=/var \

		--with-libtool \

		--enable-full-report \

		--without-readline \

		$(use_enable caps linux-caps) \

		$(use_enable fetchlimit) \

		$(use_enable filter-aaaa) \

		$(use_enable fixed-rrset) \

		$(use_enable ipv6) \

		$(use_enable rpz rpz-nsdname) \

		$(use_enable rpz rpz-nsip) \

		$(use_enable seccomp) \

		$(use_enable sit) \

		$(use_enable threads) \

		$(use_with berkdb dlz-bdb) \

		$(use_with dlz dlopen) \

		$(use_with dlz dlz-filesystem) \

		$(use_with dlz dlz-stub) \

		$(use_with gost) \

		$(use_with gssapi) \

		$(use_with idn) \

		$(use_with json libjson) \

		$(use_with ldap dlz-ldap) \

		$(use_with mysql dlz-mysql) \

		$(use_with odbc dlz-odbc) \

		$(use_with postgres dlz-postgres) \

		$(use_with python) \

		$(use_with ssl ecdsa) \

		$(use_with ssl openssl "${EPREFIX}"/usr) \

		$(use_with xml libxml2) \

		${myconf}

	# $(use_enable static-libs static) \

	# bug #151839

	echo '#undef SO_BSDCOMPAT' >> config.h

	if use nslint; then

		cd $NSLINT_DIR

		econf

	fi

}

src_compile() {

	emake

	if use nslint; then

		emake -C $NSLINT_DIR CCOPT="${CFLAGS}"

	fi

}

src_install() {

	emake DESTDIR="${D}" install

	if use nslint; then

		cd $NSLINT_DIR

		dobin nslint

		doman nslint.8

		cd "${S}"

	fi

	dodoc CHANGES FAQ README

	if use idn; then

		dodoc contrib/idn/README.idnkit

	fi

	if use doc; then

		dodoc doc/arm/Bv9ARM.pdf

		docinto misc

		dodoc doc/misc/*

		# might a 'html' useflag make sense?

		docinto html

		dohtml -r doc/arm/*

		docinto contrib

		dodoc contrib/scripts/{nanny.pl,named-bootconf.sh}

		# some handy-dandy dynamic dns examples

		pushd "${D}"/usr/share/doc/${PF} 1>/dev/null

		tar xf "${DISTDIR}"/dyndns-samples.tbz2 || die

		popd 1>/dev/null

	fi

	insinto /etc/bind

	newins "${FILESDIR}"/named.conf-r8 named.conf

	# ftp://ftp.rs.internic.net/domain/named.cache:

	insinto /var/bind

	newins "${FILESDIR}"/named.cache-r1 named.cache

	insinto /var/bind/pri

	newins "${FILESDIR}"/localhost.zone-r3 localhost.zone

	newinitd "${FILESDIR}"/named.init-r13 named

	newconfd "${FILESDIR}"/named.confd-r7 named

	if use gost; then

		sed -i -e 's/^OPENSSL_LIBGOST=${OPENSSL_LIBGOST:-0}$/OPENSSL_LIBGOST=${OPENSSL_LIBGOST:-1}/' "${D}/etc/init.d/named" || die

	else

		sed -i -e 's/^OPENSSL_LIBGOST=${OPENSSL_LIBGOST:-1}$/OPENSSL_LIBGOST=${OPENSSL_LIBGOST:-0}/' "${D}/etc/init.d/named" || die

	fi

	newenvd "${FILESDIR}"/10bind.env 10bind

	# Let's get rid of those tools and their manpages since they're provided by bind-tools

	rm -f "${D}"/usr/share/man/man1/{dig,host,nslookup}.1*

	rm -f "${D}"/usr/share/man/man8/nsupdate.8*

	rm -f "${D}"/usr/bin/{dig,host,nslookup,nsupdate}

	rm -f "${D}"/usr/sbin/{dig,host,nslookup,nsupdate}

	for tool in dsfromkey importkey keyfromlabel keygen \

	  revoke settime signzone verify; do

		rm -f "${D}"/usr/{,s}bin/dnssec-"${tool}"

		rm -f "${D}"/usr/share/man/man8/dnssec-"${tool}".8*

	done

	# bug 405251, library archives aren't properly handled by --enable/disable-static

	if ! use static-libs; then

		find "${D}" -type f -name '*.a' -delete || die

	fi

	# bug 405251

	find "${D}" -type f -name '*.la' -delete || die

	if use python; then

		install_python_tools() {

			dosbin bin/python/dnssec-{checkds,coverage}

		}

		python_foreach_impl install_python_tools

		python_replicate_script "${D}usr/sbin/dnssec-checkds"

		python_replicate_script "${D}usr/sbin/dnssec-coverage"

	fi

	# bug 450406

	dosym named.cache /var/bind/root.cache

	dosym /var/bind/pri /etc/bind/pri

	dosym /var/bind/sec /etc/bind/sec

	dosym /var/bind/dyn /etc/bind/dyn

	keepdir /var/bind/{pri,sec,dyn}

	dodir /var/log/named

	fowners root:named /{etc,var}/bind /var/log/named /var/bind/{sec,pri,dyn}

	fowners root:named /var/bind/named.cache /var/bind/pri/localhost.zone /etc/bind/{bind.keys,named.conf}

	fperms 0640 /var/bind/named.cache /var/bind/pri/localhost.zone /etc/bind/{bind.keys,named.conf}

	fperms 0750 /etc/bind /var/bind/pri

	fperms 0770 /var/log/named /var/bind/{,sec,dyn}

	systemd_newunit "${FILESDIR}/named.service-r1" named.service

	systemd_dotmpfilesd "${FILESDIR}"/named.conf

	exeinto /usr/libexec

	doexe "${FILESDIR}/generate-rndc-key.sh"

}

pkg_postinst() {

	if [ ! -f '/etc/bind/rndc.key' ]; then

		if use urandom; then

			einfo "Using /dev/urandom for generating rndc.key"

			/usr/sbin/rndc-confgen -r /dev/urandom -a

			echo

		else

			einfo "Using /dev/random for generating rndc.key"

			/usr/sbin/rndc-confgen -a

			echo

		fi

		chown root:named /etc/bind/rndc.key

		chmod 0640 /etc/bind/rndc.key

	fi

	einfo

	einfo "You can edit /etc/conf.d/named to customize named settings"

	einfo

	use mysql || use postgres || use ldap && {

		elog "If your named depends on MySQL/PostgreSQL or LDAP,"

		elog "uncomment the specified rc_named_* lines in your"

		elog "/etc/conf.d/named config to ensure they'll start before bind"

		einfo

	}

	einfo "If you'd like to run bind in a chroot AND this is a new"

	einfo "install OR your bind doesn't already run in a chroot:"

	einfo "1) Uncomment and set the CHROOT variable in /etc/conf.d/named."

	einfo "2) Run \`emerge --config '=${CATEGORY}/${PF}'\`"

	einfo

	CHROOT=$(source /etc/conf.d/named 2>/dev/null; echo ${CHROOT})

	if [[ -n ${CHROOT} ]]; then

		elog "NOTE: As of net-dns/bind-9.4.3_p5-r1 the chroot part of the init-script got some major changes!"

		elog "To enable the old behaviour (without using mount) uncomment the"

		elog "CHROOT_NOMOUNT option in your /etc/conf.d/named config."

		elog "If you decide to use the new/default method, ensure to make backup"

		elog "first and merge your existing configs/zones to /etc/bind and"

		elog "/var/bind because bind will now mount the needed directories into"

		elog "the chroot dir."

	fi

}

pkg_config() {

	CHROOT=$(source /etc/conf.d/named; echo ${CHROOT})

	CHROOT_NOMOUNT=$(source /etc/conf.d/named; echo ${CHROOT_NOMOUNT})

	CHROOT_GEOIP=$(source /etc/conf.d/named; echo ${CHROOT_GEOIP})

	if [[ -z "${CHROOT}" ]]; then

		eerror "This config script is designed to automate setting up"

		eerror "a chrooted bind/named. To do so, please first uncomment"

		eerror "and set the CHROOT variable in '/etc/conf.d/named'."

		die "Unset CHROOT"

	fi

	if [[ -d "${CHROOT}" ]]; then

		ewarn "NOTE: As of net-dns/bind-9.4.3_p5-r1 the chroot part of the init-script got some major changes!"

		ewarn "To enable the old behaviour (without using mount) uncomment the"

		ewarn "CHROOT_NOMOUNT option in your /etc/conf.d/named config."

		ewarn

		ewarn "${CHROOT} already exists... some things might become overridden"

		ewarn "press CTRL+C if you don't want to continue"

		sleep 10

	fi

	echo; einfo "Setting up the chroot directory..."

	mkdir -m 0750 -p ${CHROOT}

	mkdir -m 0755 -p ${CHROOT}/{dev,etc,var/log,run}

	mkdir -m 0750 -p ${CHROOT}/etc/bind

	mkdir -m 0770 -p ${CHROOT}/var/{bind,log/named} ${CHROOT}/run/named/

	# As of bind 9.8.0

	if has_version net-dns/bind[gost]; then

		if [ "$(get_libdir)" = "lib64" ]; then

			mkdir -m 0755 -p ${CHROOT}/usr/lib64/engines

			ln -s lib64 ${CHROOT}/usr/lib

		else

			mkdir -m 0755 -p ${CHROOT}/usr/lib/engines

		fi

	fi

	chown root:named ${CHROOT} ${CHROOT}/var/{bind,log/named} ${CHROOT}/run/named/ ${CHROOT}/etc/bind

	mknod ${CHROOT}/dev/null c 1 3

	chmod 0666 ${CHROOT}/dev/null

	mknod ${CHROOT}/dev/zero c 1 5

	chmod 0666 ${CHROOT}/dev/zero

	if use urandom; then

		mknod ${CHROOT}/dev/urandom c 1 9

		chmod 0666 ${CHROOT}/dev/urandom

	else

		mknod ${CHROOT}/dev/random c 1 8

		chmod 0666 ${CHROOT}/dev/random

	fi

	if [ "${CHROOT_NOMOUNT:-0}" -ne 0 ]; then

		cp -a /etc/bind ${CHROOT}/etc/

		cp -a /var/bind ${CHROOT}/var/

	fi

	if [ "${CHROOT_GEOIP:-0}" -eq 1 ]; then

		mkdir -m 0755 -p ${CHROOT}/usr/share/GeoIP

	fi

	elog "You may need to add the following line to your syslog-ng.conf:"

	elog "source jail { unix-stream(\"${CHROOT}/dev/log\"); };"

}