# Copyright 1999-2009 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/net-dns/bind/bind-9.6.1_p1.ebuild,v 1.2 2009/07/29 20:20:15 idl0r Exp $

EAPI="2"

inherit eutils autotools toolchain-funcs flag-o-matic

MY_PV="${PV/_p1/-P1}"
MY_P="${PN}-${MY_PV}"

SDB_LDAP_VER="1.1.0"

DESCRIPTION="BIND - Berkeley Internet Name Domain - Name Server"
HOMEPAGE="https://www.isc.org/software/bind"
SRC_URI="ftp://ftp.isc.org/isc/bind9/${MY_PV}/${MY_P}.tar.gz
	sdb-ldap? ( mirror://gentoo/bind-sdb-ldap-${SDB_LDAP_VER}.tar.bz2 )
	doc? ( mirror://gentoo/dyndns-samples.tbz2 )"

LICENSE="as-is"
SLOT="0"
KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86"
IUSE="ssl ipv6 doc dlz postgres berkdb mysql odbc ldap selinux idn threads
	resolvconf urandom sdb-ldap xml"

DEPEND="ssl? ( >=dev-libs/openssl-0.9.6g )
	mysql? ( >=virtual/mysql-4.0 )
	odbc? ( >=dev-db/unixODBC-2.2.6 )
	ldap? ( net-nds/openldap )
	idn? ( net-dns/idnkit )
	postgres? ( virtual/postgresql-base )
	threads? ( >=sys-libs/libcap-2.1.0 )
	xml? ( dev-libs/libxml2 )"

RDEPEND="${DEPEND}
	selinux? ( sec-policy/selinux-bind )
	resolvconf? ( net-dns/openresolv )"

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

pkg_setup() {
	use threads && {
		ewarn
		ewarn "If you're in vserver enviroment, you're probably want to"
		ewarn "disable threads support because of linux capabilities dependency"
		ewarn
	}

	ebegin "Creating named group and user"
	enewgroup named 40
	enewuser named 40 -1 /etc/bind named
	eend ${?}
}

src_prepare() {
	# bug 278364 (workaround)
	epatch "${FILESDIR}/${PN}-9.6.1-parallel.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

	use dlz && epatch "${FILESDIR}"/${PN}-9.4.0-dlzbdb-close_cursor.patch

	# bind fails to reconnect to MySQL5 databases, bug #180720, patch by Nicolas Brousse
	# (http://www.shell-tips.com/2007/09/04/bind-950-patch-dlz-mysql-5-for-auto-reconnect/)
	use dlz && use mysql && has_version ">=dev-db/mysql-5" && epatch "${FILESDIR}"/bind-dlzmysql5-reconnect.patch

	# should be installed by bind-tools
	sed -i -e "s:nsupdate ::g" bin/Makefile.in || die

	# sdb-ldap patch as per  bug #160567
	# Upstream URL: http://bind9-ldap.bayour.com/
	use sdb-ldap && epatch "${WORKDIR}"/sdb-ldap/${PN}-sdb-ldap-${SDB_LDAP_VER}.patch

	# bug #220361
	rm {aclocal,libtool}.m4
	WANT_AUTOCONF=2.5 AT_NO_RECURSIVE=1 eautoreconf

	# bug #151839
	sed -i -e \
		's:struct isc_socket {:#undef SO_BSDCOMPAT\n\nstruct isc_socket {:' \
		lib/isc/unix/socket.c || die

	# remove useless c++ checks
	epunt_cxx
}

src_configure() {
	local myconf=""

	use dlz && {
		myconf="${myconf} --with-dlz-filesystem --with-dlz-stub"
		use postgres && myconf="${myconf} --with-dlz-postgres"
		use mysql && myconf="${myconf} --with-dlz-mysql"
		use berkdb && myconf="${myconf} --with-dlz-bdb"
		use ldap  && myconf="${myconf} --with-dlz-ldap"
		use odbc  && myconf="${myconf} --with-dlz-odbc"
	}

	if use threads; then
		if use dlz && use mysql; then
			ewarn
			ewarn "MySQL uses thread local storage in its C api. Thus MySQL"
			ewarn "requires that each thread of an application execute a MySQL"
			ewarn "\"thread initialization\" to setup the thread local storage."
			ewarn "This is impossible to do safely while staying within the DLZ"
			ewarn "driver API. This is a limitation caused by MySQL, and not"
			ewarn "the DLZ API."
			ewarn "Because of this BIND MUST only run with a single thread when"
			ewarn "using the MySQL driver."
			ewarn
			myconf="${myconf} --disable-linux-caps --disable-threads"
			ewarn "Threading support disabled"
			epause 10
		else
			myconf="${myconf} --enable-linux-caps --enable-threads"
			einfo "Threading support enabled"
		fi
	else
		myconf="${myconf} --disable-linux-caps --disable-threads"
	fi

	if use urandom; then
		myconf="${myconf} --with-randomdev=/dev/urandom"
	else
		myconf="${myconf} --with-randomdev=/dev/random"
	fi

	# bug #158664
	gcc-specs-ssp && replace-flags -O[23s] -O
	export BUILD_CC="${CBUILD}-gcc"
	econf \
		--sysconfdir=/etc/bind \
		--localstatedir=/var \
		--with-libtool \
		$(use_with ssl openssl) \
		$(use_with idn) \
		$(use_enable ipv6) \
		$(use_with xml libxml2) \
		${myconf}
}

src_install() {
	emake DESTDIR="${D}" install || die

	dodoc CHANGES FAQ KNOWN-DEFECTS README || die

	if use idn; then
		dodoc README.idnkit || die
	fi

	if use doc; then
		dodoc doc/arm/Bv9ARM.pdf || die

		docinto misc
		dodoc doc/misc/* || die

		# might a 'html' useflag make sense?
		docinto html
		dohtml -r doc/arm/* || die

		docinto	draft
		dodoc doc/draft/* || die

		docinto rfc
		dodoc doc/rfc/* || die

		docinto contrib
		dodoc contrib/named-bootconf/named-bootconf.sh \
			contrib/nanny/nanny.pl || die

		# some handy-dandy dynamic dns examples
		cd "${D}"/usr/share/doc/${PF}
		tar xf "${DISTDIR}"/dyndns-samples.tbz2 || die
	fi

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

	keepdir /var/bind/sec

	insinto /etc/bind
	newins "${FILESDIR}"/named.conf-r3 named.conf || die

	# ftp://ftp.rs.internic.net/domain/named.ca:
	insinto /var/bind
	doins "${FILESDIR}"/named.ca || die

	insinto /var/bind/pri
	newins "${FILESDIR}"/127.zone-r1 127.zone || die
	newins "${FILESDIR}"/localhost.zone-r3 localhost.zone || die

	newinitd "${FILESDIR}"/named.init-r6 named || die
	newconfd "${FILESDIR}"/named.confd-r2 named || die

	dosym /var/bind/named.ca /var/bind/root.cache
	dosym /var/bind/pri /etc/bind/pri
	dosym /var/bind/sec /etc/bind/sec

	# 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/{dnssec-keygen,nsupdate}.8
	rm -f "${D}"/usr/bin/{dig,host,nslookup,dnssec-keygen,nsupdate}
}

pkg_postinst() {
	if [ ! -f '/etc/bind/rndc.key' ]; then
		if [ -c /dev/urandom ]; then
			einfo "Using /dev/urandom for generating rndc.key"
			/usr/sbin/rndc-confgen -r /dev/urandom -a -u named
			echo
		else
			einfo "Using /dev/random for generating rndc.key"
			/usr/sbin/rndc-confgen -a -u named
			echo
		fi
	fi

	install -d -o named -g named "${ROOT}"/var/run/named \
		"${ROOT}"/var/bind/{pri,sec} "${ROOT}"/var/log/named
	chown -R named:named "${ROOT}"/var/bind

	elog "The default zone files are now installed as *.zone,"
	elog "be careful merging config files if you have modified"
	elog "/var/bind/pri/127 or /var/bind/pri/localhost"
	elog
	elog "You can edit /etc/conf.d/named to customize named settings"
	elog
	elog "The BIND ebuild now includes chroot support."
	elog "If you like to run bind in chroot AND this is a new install OR"
	elog "your bind doesn't already run in chroot, simply run:"
	elog "\`emerge --config '=${CATEGORY}/${PF}'\`"
	elog "Before running the above command you might want to change the chroot"
	elog "dir in /etc/conf.d/named. Otherwise /chroot/dns will be used."
	elog
	elog "Recently verisign added a wildcard A record to the .COM and .NET TLD"
	elog "zones making all .com and .net domains appear to be registered"
	elog "This causes many problems such as breaking important anti-spam checks"
	elog "which verify source domains exist. ISC released a patch for BIND which"
	elog "adds 'delegation-only' zones to allow admins to return the .com and .net"
	elog "domain resolution to their normal function."
	elog
	elog "There is no need to create a com or net data file. Just the"
	elog "entries to the named.conf file is enough."
	elog
	elog "	zone "com" IN { type delegation-only; };"
	elog "	zone "net" IN { type delegation-only; };"

	ewarn
	ewarn "BIND >=9.2.5 makes the priority argument to MX records mandatory"
	ewarn "when it was previously optional.  If the priority is missing, BIND"
	ewarn "won't load the zone file at all."
	ewarn

	ewarn "NOTE: as of 'bind-9.6.1' the chroot part of the init-script got some major changes."
}

pkg_config() {
	CHROOT=`sed -n 's/^[[:blank:]]\?CHROOT="\([^"]\+\)"/\1/p' /etc/conf.d/named 2>/dev/null`
	EXISTS="no"

	if [ -z "${CHROOT}" -a ! -d "/chroot/dns" ]; then
		CHROOT="/chroot/dns"
	elif [ -d ${CHROOT} ]; then
		eerror; eerror "${CHROOT:-/chroot/dns} already exists. Quitting."; eerror; EXISTS="yes"
	fi

	if [ ! "$EXISTS" = yes ]; then
		einfo ; einfon "Setting up the chroot directory..."

		mkdir -m 750 -p ${CHROOT}
		mkdir -p ${CHROOT}/{dev,proc,etc/bind,var/{run,log}/named,var/bind}
		chown -R named:named ${CHROOT}
		chown root:named ${CHROOT}

		cp /etc/localtime ${CHROOT}/etc/localtime

		mknod ${CHROOT}/dev/zero c 1 5
		chmod 666 ${CHROOT}/dev/zero

		if use urandom; then
			mknod ${CHROOT}/dev/urandom c 1 9
			chmod 666 ${CHROOT}/dev/urandom
		else
			mknod ${CHROOT}/dev/random c 1 8
			chmod 666 ${CHROOT}/dev/random
		fi

		if [ -f '/etc/syslog-ng/syslog-ng.conf' ]; then
			echo "source jail { unix-stream(\"${CHROOT}/dev/log\"); };" >>/etc/syslog-ng/syslog-ng.conf
		fi

		grep -q "^#[[:blank:]]\?CHROOT" /etc/conf.d/named ; RETVAL=$?
		if [ $RETVAL = 0 ]; then
			sed -i 's/^# \?\(CHROOT.*\)$/\1/' /etc/conf.d/named 2>/dev/null
		fi
	else
		ewarn "NOTE: as of 'bind-9.6.1' the chroot part of the init-script got some major changes."
	fi
}