# Copyright 1999-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

inherit flag-o-matic autotools

DESCRIPTION="An extensible POP3 server with vmail-sql/MySQL support"
HOMEPAGE="https://savannah.nongnu.org/projects/tpop3d/"
SRC_URI="mirror://nongnu/tpop3d/${P}.tar.gz"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~amd64 x86"
IUSE="authexternal debug flatfile gdbm ldap maildir mbox mysql offensive
	pam passwd perl postgres +sha1 shadow ssl tcpd"

RDEPEND="virtual/libcrypt:=
	gdbm? ( sys-libs/gdbm:= )
	sha1? ( >=dev-libs/openssl-0.9.6:0= )
	ssl? ( >=dev-libs/openssl-0.9.6:0= )
	ldap? ( >=net-nds/openldap-2.0.7:= )
	mysql? ( dev-db/mysql-connector-c:0= )
	postgres? ( dev-db/postgresql:*[server] )
	perl? ( >=dev-lang/perl-5.6.1:= )
	pam? (
		>=net-mail/mailbase-0.00-r8
		sys-libs/pam
	)
	tcpd? ( >=sys-apps/tcp-wrappers-7.6 )"
DEPEND="${RDEPEND}"

PATCHES=( "${FILESDIR}/${PN}-1.5.4-gold.patch" )

src_prepare() {
	default

	mv configure.{in,ac} || die

	eautoreconf
}

src_configure() {
	local myconf=""
	local noauth=0

	# Various authentication methods
	use authexternal && myconf="${myconf} --enable-auth-other"
	use flatfile	&& myconf="${myconf} --enable-auth-flatfile"
	use gdbm		&& myconf="${myconf} --enable-auth-gdbm"
	use ldap		&& myconf="${myconf} --enable-auth-ldap"
	use mysql		&& myconf="${myconf} --enable-auth-mysql --with-mysql-lib-dir=$(mysql_config --variable=pkglibdir)"
	use pam			|| myconf="${myconf} --disable-auth-pam"
	use passwd		&& myconf="${myconf} --enable-auth-passwd"
	use perl		&& myconf="${myconf} --enable-auth-perl"
	use postgres	&& myconf="${myconf} --enable-auth-pgsql"
	use shadow		&& myconf="${myconf} --enable-auth-passwd --enable-shadow-passwords"

	use authexternal || use flatfile || use gdbm || use ldap || use mysql ||
		use	pam || use passwd || use perl || use postgres || use shadow ||
		noauth=1

	if [[ ${noauth} -eq 1 ]]; then
		ewarn "None of tpop3d's authentication mechanism USE flags are set."
		ewarn "As a result tpop3d will be built with /etc/passwd authentication only."
		myconf="${myconf} --enable-auth-passwd"
	fi

	# Other optional features
	use debug		&& myconf="${myconf} --enable-backtrace"
	use maildir		&& myconf="${myconf} --enable-mbox-maildir"
	use mbox		|| myconf="${myconf} --disable-mbox-bsd"
	use offensive	|| myconf="${myconf} --disable-snide-comments"
	use sha1		|| myconf="${myconf} --disable-sha1-passwords"
	use ssl			&& myconf="${myconf} --enable-tls"
	use tcpd		&& myconf="${myconf} --enable-tcp-wrappers"

	econf ${myconf}

	# Causes crash with "stack smashing attack" on connect, because of bug in
	# SSP (bug #115285)
	filter-flags -fstack-protector
}

src_install() {
	default
	dodir /etc/tpop3d

	if use pam ; then
		dodir /etc/pam.d
		dosym pop3 /etc/pam.d/tpop3d
	fi

	newinitd "${FILESDIR}/${PN}-1.5.4.init" tpop3d
}

pkg_postinst() {
	elog "Read the tpop3d.conf manpage"
	elog "Please create /etc/tpop3d/tpop3d.conf to fit your configuration"
}