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# Contributor: Sören Tempel <soeren+alpine@soeren-tempel.net>
# Contributor: Natanael Copa <ncopa@alpinelinux.org>
# Maintainer: Natanael Copa <ncopa@alpinelinux.org>
pkgname=dnssec-root
pkgver=20100715
pkgrel=3
pkgdesc="The DNSSEC root key(s)"
url="https://www.iana.org/dnssec/"
arch="noarch"
license="Public-Domain"
depends=""
makedepends="libxslt gnupg bind-tools"
install=""
subpackages=""
source="https://data.iana.org/root-anchors/old/icann.pgp
	https://data.iana.org/root-anchors/old/root-anchors.xml
	https://data.iana.org/root-anchors/old/root-anchors.asc
	anchors2ds.xsl
	"

# Modeled after the following approach:
# http://permalink.gmane.org/gmane.network.dns.unbound.user/1039

_keyflags=257
_hashalgo=-2

_builddir="$srcdir"/$pkgname-$pkgver
prepare() {
	cd "$srcdir"
	mkdir -p "$_builddir"

	(
		export GNUPGHOME="$_builddir"/gpg
		install -d -m 700 "$GNUPGHOME"
		gpg --import "$srcdir"/icann.pgp || exit 1
		gpg --verify "$srcdir"/root-anchors.asc \
			root-anchors.xml
	) || return 1
}

build() {
	cd "$_builddir"
	xsltproc -o root-anchors.txt "$srcdir"/anchors2ds.xsl "$srcdir"/root-anchors.xml

	dig DNSKEY . | grep -w $_keyflags > untrusted.key
	dnssec-dsfromkey $_hashalgo untrusted.key > untrusted.ds

	cut -d ' ' -f1-6 untrusted.ds | tr '\n' ' ' > root-anchors.tmp
	cut -d ' ' -f7- untrusted.ds | sed 's/ //g' | tr '\n' ' ' >> root-anchors.tmp
	printf '\n' >> root-anchors.tmp

	if ! cmp root-anchors.txt root-anchors.tmp; then
		echo "DNSKEY is invalid, don't continue." 1>&2
		exit 1
	fi

	awk '{print $1 "\t" $2 "\t" $3 "\t" $4 "\t" $5 " " $6 " " $7; for (i = 8; i <= NF; i++) printf $i}' \
		untrusted.key | tr '\n' ' ' > trusted-key.key
	printf "\n" >> trusted-key.key
}

package() {
	install -Dm644 "$_builddir"/trusted-key.key \
		"$pkgdir"/usr/share/$pkgname/trusted-key.key || return 1
}

md5sums="041a789ee96301623d3e66e4d52c8a0b  icann.pgp
69e6f9b67e92fbc952d488cc6f67198f  root-anchors.xml
a5612e1b84a75c29b642b9342286c511  root-anchors.asc
1043c559c923279600a6da395b794597  anchors2ds.xsl"
sha256sums="3e9beaaf9bbd1fe78a0d104230cbc04d544e833a2dc6b982992f74a4860a9ae8  icann.pgp
dfb281b771dc854c18d1cff9d2eecaf184cf7a9668606aaa33e8f01bf4b4d8e4  root-anchors.xml
5bffcac53f810c5fb1e1baf543e2de2f10ec99d7f7cddb5f1e47b1e58cf34cfa  root-anchors.asc
2cc436e29e5bfd39c055390045a4c14dfae517ebdad79002983756a508a15e8f  anchors2ds.xsl"
sha512sums="5fba8334850f2ae753f4f8a30d1e6c62abc341ece2dc83df4bc0f6db2b91ae68942c0d2a38eab3d33b5b91640cd1cf0970777225c15d5f961884c00077d539a2  icann.pgp
bca506c852bc83aa9d04ed0b52bef6d0baec745e466292273d52f49fd73cec73db4c6d55a9921fe086c7edc618f3ab21dc03146b6d617644495b3926e262e572  root-anchors.xml
e9c86b897d7e8edb979cba4bebe353b7c7f21b4061cd6f571c8671b02e73c2ea0b78a980169fa7d40987b9e962a0f1ba17dbb392b5ec6ad14fedce65a139c913  root-anchors.asc
5b496d8f7fcb6a1241d889221f539b68485fea356feec13a94329b0807768c543c828c2821567f59d6a56931a6b2ea22827e49a1527582e3dda844d61c28b198  anchors2ds.xsl"