# Copyright 1999-2016 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$

EAPI=5

PYTHON_COMPAT=( python2_7 )

inherit autotools fdo-mime gnome2-utils flag-o-matic linux-info \
	multilib multilib-minimal pam python-single-r1 user versionator \
	java-pkg-opt-2 systemd toolchain-funcs

MY_P=${P/_rc/rc}
MY_P=${MY_P/_beta/b}
MY_PV=${PV/_rc/rc}
MY_PV=${MY_PV/_beta/b}

if [[ ${PV} == *9999 ]]; then
	inherit git-r3
	EGIT_REPO_URI="http://www.cups.org/cups.git"
	if [[ ${PV} != 9999 ]]; then
		EGIT_BRANCH=branch-${PV/.9999}
	fi
else
	SRC_URI="https://github.com/apple/${PN}/archive/release-${PV}.tar.gz -> ${P}.tar.gz"
	KEYWORDS="*"
fi

DESCRIPTION="The Common Unix Printing System"
HOMEPAGE="http://www.cups.org/"

LICENSE="GPL-2"
SLOT="0"
IUSE="acl dbus debug java kerberos lprng-compat pam
	python +seccomp selinux +ssl static-libs systemd +threads upstart usb X xinetd zeroconf"
# TODO: 'IUSE=kernel_linux' should be handled implicitly (e.g., with
# IUSE_IMPLICIT), but this doesn't work with 'cros deploy' right now. See
# http://crbug.com/579661
IUSE="${IUSE} kernel_linux"

LANGS="ca cs de es fr it ja ru"
for X in ${LANGS} ; do
	IUSE="${IUSE} +linguas_${X}"
done

CDEPEND="
	app-text/libpaper
	acl? (
		kernel_linux? (
			sys-apps/acl
			sys-apps/attr
		)
	)
	dbus? ( >=sys-apps/dbus-1.6.18-r1[${MULTILIB_USEDEP}] )
	java? ( >=virtual/jre-1.6:* )
	kerberos? ( >=virtual/krb5-0-r1[${MULTILIB_USEDEP}] )
	!lprng-compat? ( !net-print/lprng )
	pam? ( virtual/pam )
	python? ( ${PYTHON_DEPS} )
	ssl? (
		>=dev-libs/libgcrypt-1.5.3:0[${MULTILIB_USEDEP}]
		>=net-libs/gnutls-2.12.23-r6[${MULTILIB_USEDEP}]
	)
	systemd? ( sys-apps/systemd )
	usb? ( virtual/libusb:1 )
	X? ( x11-misc/xdg-utils )
	xinetd? ( sys-apps/xinetd )
	zeroconf? ( >=net-dns/avahi-0.6.31-r2[${MULTILIB_USEDEP}] )
	abi_x86_32? (
		!<=app-emulation/emul-linux-x86-baselibs-20140508
		!app-emulation/emul-linux-x86-baselibs[-abi_x86_32(-)]
	)
"

DEPEND="${CDEPEND}
	>=virtual/pkgconfig-0-r1[${MULTILIB_USEDEP}]
"

RDEPEND="${CDEPEND}
	selinux? ( sec-policy/selinux-cups )
"

REQUIRED_USE="
	python? ( ${PYTHON_REQUIRED_USE} )
	usb? ( threads )
	?? ( systemd upstart )
"

# upstream includes an interactive test which is a nono for gentoo
RESTRICT="test"

S="${WORKDIR}/${PN}-release-${MY_PV}"

# systemd-socket.patch from Fedora
PATCHES=(
	"${FILESDIR}/${PN}-1.6.0-dont-compress-manpages.patch"
	"${FILESDIR}/${PN}-1.6.0-fix-install-perms.patch"
	"${FILESDIR}/${PN}-1.4.4-nostrip.patch"
	"${FILESDIR}/${PN}-2.0.2-rename-systemd-service-files.patch"
	"${FILESDIR}/${PN}-2.1.2-systemd-socket.patch"
	"${FILESDIR}/${PN}-2.0.1-xinetd-installation-fix.patch"
	"${FILESDIR}/${PN}-2.0.3-cross-compile.patch"
	"${FILESDIR}/${PN}-2.0.3-Add-printerroot-to-configure.patch"
	"${FILESDIR}/${PN}-2.1.2-PrinterRoot.patch"
	"${FILESDIR}/${PN}-2.0.3-upstart-on-demand.patch"
	"${FILESDIR}/${PN}-2.1.4-strict-filters.patch"
	"${FILESDIR}/${PN}-2.1.4-usb-device-uris.patch"
	"${FILESDIR}/${PN}-2.1.4-non-standard-grays.patch"
	"${FILESDIR}/${PN}-2.1.4-raise-log-level-for-desired-features.patch"
	"${FILESDIR}/${PN}-2.1.4-search-filter.patch"
	"${FILESDIR}/${PN}-2.1.4-limit-PSVersion-sscanf.patch"
	"${FILESDIR}/${PN}-2.1.4-ippusb-query.patch"
	"${FILESDIR}/${PN}-2.1.4-timeout.patch"
	"${FILESDIR}/${PN}-2.2.2-Tweak-the-PDL-priority-Issue-4932.patch"
	"${FILESDIR}/${PN}-2.2.2-Only-list-supported-PDLs-Issue-4923.patch"
	"${FILESDIR}/${PN}-2.2.2-no-tests.patch"
	"${FILESDIR}/${PN}-2.1.4-cups-config-libs.patch"
)

MULTILIB_CHOST_TOOLS=(
	/usr/bin/cups-config
)

pkg_setup() {
	enewgroup lp
	enewuser lp -1 -1 -1 "lp,ippusb"
	enewgroup lpadmin
	enewuser lpadmin -1 -1 -1 "lpadmin,ippusb"
	enewgroup cups
	enewuser cups -1 -1 -1 cups

	use python && python-single-r1_pkg_setup

	if use kernel_linux; then
		linux-info_pkg_setup
		if  ! linux_config_exists; then
			ewarn "Can't check the linux kernel configuration."
			ewarn "You might have some incompatible options enabled."
		else
			# recheck that we don't have usblp to collide with libusb
			if use usb; then
				if linux_chkconfig_present USB_PRINTER; then
					eerror "Your usb printers will be managed via libusb. In this case, "
					eerror "${P} requires the USB_PRINTER support disabled."
					eerror "Please disable it:"
					eerror "    CONFIG_USB_PRINTER=n"
					eerror "in /usr/src/linux/.config or"
					eerror "    Device Drivers --->"
					eerror "        USB support  --->"
					eerror "            [ ] USB Printer support"
					eerror "Alternatively, just disable the usb useflag for cups (your printer will still work)."
				fi
			else
				#here we should warn user that he should enable it so he can print
				if ! linux_chkconfig_present USB_PRINTER; then
					ewarn "If you plan to use USB printers you should enable the USB_PRINTER"
					ewarn "support in your kernel."
					ewarn "Please enable it:"
					ewarn "    CONFIG_USB_PRINTER=y"
					ewarn "in /usr/src/linux/.config or"
					ewarn "    Device Drivers --->"
					ewarn "        USB support  --->"
					ewarn "            [*] USB Printer support"
					ewarn "Alternatively, enable the usb useflag for cups and use the libusb code."
				fi
			fi
		fi
	fi
}

src_prepare() {
	epatch ${PATCHES[@]}

	epatch_user

	# Remove ".SILENT" rule for verbose output (bug 524338).
	sed 's#^.SILENT:##g' -i "${S}"/Makedefs.in || die "sed failed"

	# Fix install-sh, posix sh does not have 'function'.
	sed 's#function gzipcp#gzipcp()#g' -i "${S}/install-sh"

	AT_M4DIR=config-scripts eaclocal
	eautoconf

	# custom Makefiles
	multilib_copy_sources
}

multilib_src_configure() {
	export DSOFLAGS="${LDFLAGS}"

	einfo LANGS=\"${LANGS}\"
	einfo LINGUAS=\"${LINGUAS}\"

	local myconf=()

	if tc-is-static-only; then
		myconf+=(
			--disable-shared
		)
	fi

	# explicitly specify compiler wrt bug 524340
	#
	# need to override KRB5CONFIG for proper flags
	# https://www.cups.org/str.php?L4423
	econf \
		CC="$(tc-getCC)" \
		CXX="$(tc-getCXX)" \
		KRB5CONFIG="${EPREFIX}"/usr/bin/${CHOST}-krb5-config \
		--libdir="${EPREFIX}"/usr/$(get_libdir) \
		--localstatedir="${EPREFIX}"/var \
		--with-rundir="${EPREFIX}"/run/cups \
		--with-printerroot="${EPREFIX}"/var/cache/cups/printers \
		--with-cups-user=nobody \
		--with-cups-group=cups \
		--with-docdir="${EPREFIX}"/usr/share/cups/html \
		--with-languages="${LINGUAS}" \
		--with-system-groups=lpadmin \
		--with-xinetd=/etc/xinetd.d \
		$(multilib_native_use_enable acl) \
		$(use_enable dbus) \
		$(use_enable debug) \
		$(use_enable debug debug-guards) \
		$(use_enable debug debug-printfs) \
		$(multilib_native_use_with java) \
		$(use_enable kerberos gssapi) \
		$(multilib_native_use_enable pam) \
		$(multilib_native_use_with python python "${PYTHON}") \
		$(use_enable static-libs static) \
		$(use_enable threads) \
		$(use_enable ssl gnutls) \
		$(use_enable systemd) \
		$(use_enable upstart) \
		$(multilib_native_use_enable usb libusb) \
		$(use_enable zeroconf avahi) \
		--disable-dnssd \
		--without-perl \
		--without-php \
		$(multilib_is_native_abi && echo --enable-libpaper || echo --disable-libpaper) \
		"${myconf[@]}"

	# install in /usr/libexec always, instead of using /usr/lib/cups, as that
	# makes more sense when facing multilib support.
	sed -i -e "s:SERVERBIN.*:SERVERBIN = \"\$\(BUILDROOT\)${EPREFIX}/usr/libexec/cups\":" Makedefs || die
	sed -i -e "s:#define CUPS_SERVERBIN.*:#define CUPS_SERVERBIN \"${EPREFIX}/usr/libexec/cups\":" config.h || die
	sed -i -e "s:cups_serverbin=.*:cups_serverbin=\"${EPREFIX}/usr/libexec/cups\":" cups-config || die
}

multilib_src_compile() {
	if multilib_is_native_abi; then
		default
	else
		emake libs
	fi
}

multilib_src_test() {
	multilib_is_native_abi && default
}

multilib_src_install() {
	if multilib_is_native_abi; then
		emake BUILDROOT="${D}" install
	else
		emake BUILDROOT="${D}" install-libs install-headers
		dobin cups-config
	fi
}

multilib_src_install_all() {
	dodoc {CHANGES,CREDITS,README}.txt

	# move the default config file to docs
	dodoc "${ED}"/etc/cups/cupsd.conf.default
	rm -f "${ED}"/etc/cups/cupsd.conf.default

	# clean out cups init scripts
	rm -rf "${ED}"/etc/{init.d/cups,rc*,pam.d/cups}

	# install our init script
	local neededservices
	use zeroconf && neededservices+=" avahi-daemon"
	use dbus && neededservices+=" dbus"
	[[ -n ${neededservices} ]] && neededservices="need${neededservices}"
	cp "${FILESDIR}"/cupsd.init.d-r1 "${T}"/cupsd || die
	sed -i \
		-e "s/@neededservices@/$neededservices/" \
		"${T}"/cupsd || die
	doinitd "${T}"/cupsd

	# install our pam script
	pamd_mimic_system cups auth account

	if use xinetd ; then
		# correct path
		sed -i \
			-e "s:server = .*:server = /usr/libexec/cups/daemon/cups-lpd:" \
			"${ED}"/etc/xinetd.d/cups-lpd || die
		# it is safer to disable this by default, bug #137130
		grep -w 'disable' "${ED}"/etc/xinetd.d/cups-lpd || \
			{ sed -i -e "s:}:\tdisable = yes\n}:" "${ED}"/etc/xinetd.d/cups-lpd || die ; }
		# write permission for file owner (root), bug #296221
		fperms u+w /etc/xinetd.d/cups-lpd || die "fperms failed"
	else
		# always configure with --with-xinetd= and clean up later,
		# bug #525604
		rm -rf "${ED}"/etc/xinetd.d
	fi

	keepdir /usr/libexec/cups/driver /usr/share/cups/{model,profiles} \
		/var/spool/cups/tmp

	keepdir /etc/cups/{interfaces,ppd,ssl}

	use X || rm -r "${ED}"/usr/share/applications

	# create /etc/cups/client.conf, bug #196967 and #266678
	echo "ServerName ${EPREFIX}/run/cups/cups.sock" >> "${ED}"/etc/cups/client.conf

	# the following file is now provided by cups-filters:
	rm -r "${ED}"/usr/share/cups/banners || die

	# the following are created by the init script
	rm -r "${ED}"/var/cache/cups || die
	rm -r "${ED}"/run || die

	# we're sending logs to syslog, not /var/log/cups/*
	rmdir "${ED}"/var/log/cups || die

	# for the special case of running lprng and cups together, bug 467226
	if use lprng-compat ; then
		rm -fv "${ED}"/usr/bin/{lp*,cancel}
		rm -fv "${ED}"/usr/sbin/lp*
		rm -fv "${ED}"/usr/share/man/man1/{lp*,cancel*}
		rm -fv "${ED}"/usr/share/man/man8/lp*
		ewarn "Not installing lp... binaries, since the lprng-compat useflag is set."
		ewarn "Unless you plan to install an exotic server setup, you most likely"
		ewarn "do not want this. Disable the useflag then and all will be fine."
	fi

	# CUPS tries to install these as root-only executables, for
	# IPP/Kerberos support, and for "privileged port" listening. We don't
	# need the former, and the latter is handled by Linux capabilities.
	# Discussion here:
	# http://www.cups.org/pipermail/cups/2016-February/027499.html
	chmod 0755 "${ED}"/usr/libexec/cups/backend/{dnssd,ipp,lpd}

	# Create a symbolic link from "ippusb' to the ipp backend.
	dosym ipp /usr/libexec/cups/backend/ippusb

	# Install a symlink exception file to prevent the system from blocking
	# symlink traversal where it is relied upon by CUPS. This should be
	# removed when crbug/817851 is resolved.
	insinto /usr/share/cros/startup/symlink_exceptions/
	doins "${FILESDIR}"/cups-symlink-exceptions.txt

	# Install our own conf files
	insinto /etc/cups
	doins "${FILESDIR}"/{cupsd,cups-files}.conf
	if use upstart; then
		insinto /etc/init
		doins "${FILESDIR}"/init/cups-pre-upstart-socket-bridge.conf
		doins "${FILESDIR}"/init/cups-post-upstart-socket-bridge.conf
		doins "${FILESDIR}"/init/cupsd.conf
		doins "${FILESDIR}"/init/cups-clear-state.conf
	fi

	# CUPS wants the daemon user to own these
	chown cups:cups "${ED}"/etc/cups/{cupsd.conf,cups-files.conf,ssl}
	# CUPS also wants some specific permissions
	chmod 640 "${ED}"/etc/cups/{cupsd,cups-files}.conf
	chmod 700 "${ED}"/etc/cups/ssl

	if use seccomp; then
		# Install seccomp policy files.
		insinto /usr/share/policy
		newins "${FILESDIR}/cupsd-seccomp-${ARCH}.policy" cupsd-seccomp.policy
		newins "${FILESDIR}/cupstestppd-seccomp-${ARCH}.policy" cupstestppd-seccomp.policy
		newins "${FILESDIR}/lpadmin-seccomp-${ARCH}.policy" lpadmin-seccomp.policy
	else
		sed -i '/^env seccomp_flags=/s:=.*:="":' "${ED}"/etc/init/cupsd.conf
	fi
}

pkg_preinst() {
	gnome2_icon_savelist
}

pkg_postinst() {
	# Update desktop file database and gtk icon cache (bug 370059)
	gnome2_icon_cache_update
	fdo-mime_desktop_database_update

	# not slotted - at most one value
	if ! [[ "${REPLACING_VERSIONS}" ]]; then
		echo
		elog "For information about installing a printer and general cups setup"
		elog "take a look at: https://wiki.gentoo.org/wiki/Printing"
		echo
	fi

	if [[ "${REPLACING_VERSIONS}" ]] && [[ "${REPLACING_VERSIONS}" < "1.6" ]]; then
		echo
		elog "CUPS-1.6 no longer supports automatic remote printers or implicit classes"
		elog "via the CUPS, LDAP, or SLP protocols, i.e. \"network browsing\"."
		elog "You will have to find printers using zeroconf/avahi instead, enter"
		elog "the location manually, or run cups-browsed from net-print/cups-filters"
		elog "which re-adds that functionality as a separate daemon."
		echo
	fi

	if [[ "${REPLACING_VERSIONS}" == "1.6.2-r4" ]]; then
		ewarn
		ewarn "You are upgrading from the broken version net-print/cups-1.6.2-r4."
		ewarn "Please rebuild net-print/cups-filters now to make sure everything is OK."
		ewarn
	fi
}

pkg_postrm() {
	# Update desktop file database and gtk icon cache (bug 370059)
	gnome2_icon_cache_update
	fdo-mime_desktop_database_update
}