# Copyright 1999-2025 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

# Upstream sometimes pushes releases as pre-releases before marking them
# official. Don't keyword the pre-releases!
# Check https://github.com/shadow-maint/shadow/releases.

inherit libtool pam user-info verify-sig

DESCRIPTION="Utilities to deal with user accounts"
HOMEPAGE="https://github.com/shadow-maint/shadow"
MY_PV="${PV/_/-}"
MY_P="${PN}-${MY_PV}"
SRC_URI="https://github.com/shadow-maint/shadow/releases/download/${MY_PV}/${MY_P}.tar.xz"
SRC_URI+=" verify-sig? ( https://github.com/shadow-maint/shadow/releases/download/${MY_PV}/${MY_P}.tar.xz.asc )"
S="${WORKDIR}/${MY_P}"

LICENSE="BSD GPL-2"
# Subslot is for libsubid's SONAME.
SLOT="0/5"
#KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
IUSE="acl audit nls pam selinux skey split-usr su systemd test xattr"
RESTRICT="!test? ( test )"

COMMON_DEPEND="
	virtual/libcrypt:=
	acl? ( sys-apps/acl:= )
	audit? ( >=sys-process/audit-2.6:= )
	nls? ( virtual/libintl )
	pam? ( sys-libs/pam:= )
	skey? ( sys-auth/skey:= )
	selinux? (
		>=sys-libs/libselinux-1.28:=
		sys-libs/libsemanage:=
	)
	systemd? ( sys-apps/systemd:= )
	xattr? ( sys-apps/attr:= )
	!<sys-libs/glibc-2.38
"
DEPEND="
	${COMMON_DEPEND}
	>=sys-kernel/linux-headers-4.14
"
RDEPEND="
	${COMMON_DEPEND}
	acct-group/shadow
	pam? ( >=sys-auth/pambase-20150213 )
	su? ( !sys-apps/util-linux[su(-)] )
"
BDEPEND="
	acct-group/shadow
	app-arch/xz-utils
	sys-devel/gettext
	test? ( dev-util/cmocka )
"

BDEPEND+=" verify-sig? ( sec-keys/openpgp-keys-sergehallyn )"
VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/sergehallyn.asc

PATCHES=(
	"${FILESDIR}"/shadow-4.19.0-rc1-SIZE_MAX.patch
)

src_prepare() {
	default
	elibtoolize
}

set_login_opt() {
	local comment="" opt=${1} val=${2}
	if [[ -z ${val} ]]; then
		comment="#"
		sed -i \
			-e "/^${opt}\>/s:^:#:" \
			etc/login.defs || die
	else
		sed -i -r \
			-e "/^#?${opt}\>/s:.*:${opt} ${val}:" \
			etc/login.defs || die
	fi
	local res=$(grep "^${comment}${opt}\>" etc/login.defs)
	einfo "${res:-Unable to find ${opt} in etc/login.defs}"
}

src_configure() {
	local myeconfargs=(
		# Negate new upstream default of disabling for now
		--enable-lastlog
		--disable-account-tools-setuid
		--disable-static
		--with-btrfs
		# Use bundled replacements for readpassphrase and freezero
		--without-libbsd
		--without-group-name-max-length
		--without-tcb
		--with-bcrypt
		--with-yescrypt
		$(use_enable nls)
		# TODO: wire up upstream for elogind too (bug #931119)
		$(use_enable systemd logind)
		$(use_with acl)
		$(use_with audit)
		$(use_with elibc_glibc nscd)
		$(use_with pam libpam)
		$(use_with selinux)
		$(use_with skey)
		$(use_with su)
		$(use_with xattr attr)
	)

	econf "${myeconfargs[@]}"

	set_login_opt CREATE_HOME yes
	if use pam; then
		# Comment out login.defs options that pam hates
		local opts=(
			CHFN_AUTH
			CONSOLE
			ENV_HZ
			ENVIRON_FILE
			FAILLOG_ENAB
			FTMP_FILE
			LASTLOG_ENAB
			MAIL_CHECK_ENAB
			MOTD_FILE
			NOLOGINS_FILE
			OBSCURE_CHECKS_ENAB
			PASS_ALWAYS_WARN
			PASS_CHANGE_TRIES
			PASS_MIN_LEN
			PORTTIME_CHECKS_ENAB
			QUOTAS_ENAB
			SU_WHEEL_ONLY
		)
		local opt sed_args=()
		for opt in "${opts[@]}"; do
			set_login_opt ${opt}
			sed_args+=( -e "/^#${opt}\>/b pamnote" )
		done
		sed_args+=(
			-e 'b exit'
			-e ': pamnote; i# NOTE: This setting should be configured via /etc/pam.d/ and not in this file.'
			-e ': exit'
		)
		sed -i "${sed_args[@]}" etc/login.defs || die
	else
		set_login_opt MAIL_CHECK_ENAB no
		set_login_opt SU_WHEEL_ONLY yes
		set_login_opt LOGIN_RETRIES 3
		set_login_opt ENCRYPT_METHOD YESCRYPT
		set_login_opt CONSOLE
	fi
}

src_install() {
	emake DESTDIR="${D}" suidperms=4755 install

	fowners :shadow /usr/bin/{chage,expiry}
	fperms u-s,g+s /usr/bin/{chage,expiry}

	# 4.9 regression: https://github.com/shadow-maint/shadow/issues/389
	emake DESTDIR="${D}" -C man install

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

	insinto /etc
	doins etc/login.defs

	# needed for 'useradd -D'
	insopts -m0600
	insinto /etc/default
	doins "${FILESDIR}"/default/useradd

	if ! use pam ; then
		doins etc/login.access etc/limits
	fi

	if use split-usr ; then
		# move passwd to / to help recover broke systems #64441
		# We cannot simply remove this or else net-misc/scponly
		# and other tools will break because of hardcoded passwd
		# location
		dodir /bin
		mv "${ED}"/usr/bin/passwd "${ED}"/bin/ || die
		dosym ../../bin/passwd /usr/bin/passwd
	fi

	if use pam; then
		dopamd "${FILESDIR}"/pam.d-include/shadow

		for x in chsh chfn ; do
			newpamd "${FILESDIR}"/pam.d-include/passwd ${x}
		done

		for x in chpasswd newusers ; do
			newpamd "${FILESDIR}"/pam.d-include/chpasswd ${x}
		done

		newpamd "${FILESDIR}"/pam.d-include/shadow-r1 groupmems

		# Remove manpages that pam will install for us
		# and/or don't apply when using pam
		find "${ED}"/usr/share/man -type f \
			'(' -name 'limits.5*' -o -name 'suauth.5*' ')' \
			-delete

		# Remove pam.d files provided by pambase.
		rm "${ED}"/etc/pam.d/{login,passwd} || die
		if use su ; then
			rm "${ED}"/etc/pam.d/su || die
		fi
	fi

	# Remove manpages that are handled by other packages
	find "${ED}"/usr/share/man -type f -name getspnam.3 -delete || die

	if ! use su ; then
		find "${ED}"/usr/share/man -type f -name su.1 -delete || die
	fi

	dodoc README doc/HOWTO doc/README.limits

	if use elibc_musl; then
		QA_CONFIG_IMPL_DECL_SKIP+=( sgetsgent )
	fi
}

pkg_postinst() {
	# Missing entries from /etc/passwd can cause odd system blips.
	# See bug #829872.
	if ! pwck -r -q -R "${EROOT:-/}" &>/dev/null ; then
		ewarn "Running 'pwck' returned errors. Please run it manually to fix any errors."
	fi

	local group=shadow

	if [[ -n ${ROOT} ]]; then
		# Resolve to a group id using ${ROOT}/etc/passwd
		group=$(egetent group shadow | cut -d: -f3)
		if [[ -n ${group} ]]; then
			chgrp "${group}" "${EROOT}"/usr/bin/{chage,expiry} &&
			chmod g+s "${EROOT}"/usr/bin/{chage,expiry}
		fi
	fi

	# Enable shadow groups.
	if [[ ! -f "${EROOT}"/etc/gshadow ]] ; then
		if grpck -r -R "${EROOT:-/}" 2>/dev/null ; then
			grpconv -R "${EROOT:-/}"
			if [[ -n ${group} ]]; then
				chgrp "${group}" "${EROOT}"/etc/gshadow &&
				chmod g+r "${EROOT}"/etc/gshadow
			fi
		else
			ewarn "Running 'grpck' returned errors. Please run it by hand, and then"
			ewarn "run 'grpconv' afterwards!"
		fi
	fi

	[[ ! -f "${EROOT}"/etc/subgid ]] &&
		touch "${EROOT}"/etc/subgid
	[[ ! -f "${EROOT}"/etc/subuid ]] &&
		touch "${EROOT}"/etc/subuid
}