# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI="6"
inherit autotools eutils readme.gentoo-r1 user systemd git-r3

DESCRIPTION="Lightweight high-performance web server"
HOMEPAGE="https://www.lighttpd.net
		  https://github.com/lighttpd"
EGIT_REPO_URI="https://git.lighttpd.net/lighttpd1.4.git git+ssh://git@lighttpd.net/lighttpd/lighttpd1.4.git git://git.lighttpd.net/lighttpd/lighttpd1.4.git"

LICENSE="BSD GPL-2"
SLOT="0"
KEYWORDS=""
IUSE="bzip2 doc fam gdbm ipv6 kerberos ldap libev libressl lua minimal mmap memcached mysql pcre php rrdtool selinux ssl test webdav xattr zlib"
RESTRICT="!test? ( test )"

REQUIRED_USE="kerberos? ( ssl !libressl )"

CDEPEND="
	bzip2?    ( app-arch/bzip2 )
	fam?      ( virtual/fam )
	gdbm?     ( sys-libs/gdbm )
	ldap?     ( >=net-nds/openldap-2.1.26 )
	libev?    ( >=dev-libs/libev-4.01 )
	lua?      ( >=dev-lang/lua-5.1:= )
	memcached? ( dev-libs/libmemcached )
	mysql?    ( >=virtual/mysql-4.0 )
	pcre?     ( >=dev-libs/libpcre-3.1 )
	php?      ( dev-lang/php:*[cgi] )
	rrdtool?  ( net-analyzer/rrdtool )
	ssl? (
		!libressl? ( >=dev-libs/openssl-0.9.7:0= )
		libressl? ( dev-libs/libressl:= )
	)
	webdav? (
		dev-libs/libxml2
		>=dev-db/sqlite-3
		sys-fs/e2fsprogs
	)
	xattr? ( kernel_linux? ( sys-apps/attr ) )
	zlib? (	>=sys-libs/zlib-1.1 )"

DEPEND="${CDEPEND}
	virtual/pkgconfig
	doc?  ( dev-python/docutils )
	test? (
		virtual/perl-Test-Harness
		dev-libs/fcgi
	)"

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

# update certain parts of lighttpd.conf based on conditionals
update_config() {
	local config="${D}/etc/lighttpd/lighttpd.conf"

	# enable php/mod_fastcgi settings
	use php && { sed -i -e 's|#.*\(include.*fastcgi.*$\)|\1|' ${config} || die; }

	# enable stat() caching
	use fam && { sed -i -e 's|#\(.*stat-cache.*$\)|\1|' ${config} || die; }

	# automatically listen on IPv6 if built with USE=ipv6. Bug #234987
	use ipv6 && { sed -i -e 's|# server.use-ipv6|server.use-ipv6|' ${config} || die; }
}

# remove non-essential stuff (for USE=minimal)
remove_non_essential() {
	local libdir="${D}/usr/$(get_libdir)/${PN}"

	# text docs
	use doc || rm -fr "${D}"/usr/share/doc/${PF}/txt

	# non-essential modules
	rm -f \
		${libdir}/mod_{compress,evhost,expire,proxy,scgi,secdownload,simple_vhost,status,setenv,trigger*,usertrack}.*

	# allow users to keep some based on USE flags
	use pcre    || rm -f ${libdir}/mod_{ssi,re{direct,write}}.*
	use webdav  || rm -f ${libdir}/mod_webdav.*
	use mysql   || rm -f ${libdir}/mod_mysql_vhost.*
	use lua     || rm -f ${libdir}/mod_{cml,magnet}.*
	use rrdtool || rm -f ${libdir}/mod_rrdtool.*
	use zlib    || rm -f ${libdir}/mod_compress.*
}

pkg_setup() {
	if ! use pcre ; then
		ewarn "It is highly recommended that you build ${PN}"
		ewarn "with perl regular expressions support via USE=pcre."
		ewarn "Otherwise you lose support for some core options such"
		ewarn "as conditionals and modules such as mod_re{write,direct}"
		ewarn "and mod_ssi."
	fi

	enewgroup lighttpd
	enewuser lighttpd -1 -1 /var/www/localhost/htdocs lighttpd

	DOC_CONTENTS="IPv6 migration guide:\n
		http://redmine.lighttpd.net/projects/lighttpd/wiki/IPv6-Config"
}

src_prepare() {
	#dev-python/docutils installs rst2html.py not rst2html
	sed -i -e 's|\(rst2html\)|\1.py|g' doc/outdated/Makefile.am || \
		die "sed doc/Makefile.am failed"
	eautoreconf
	default
}

src_configure() {
	econf --libdir=/usr/$(get_libdir)/${PN} \
		--enable-lfs \
		$(use_enable ipv6) \
		$(use_enable mmap) \
		$(use_with bzip2) \
		$(use_with fam) \
		$(use_with gdbm) \
		$(use_with kerberos kerberos5) \
		$(use_with ldap) \
		$(use_with libev) \
		$(use_with lua) \
		$(use_with memcached memcache) \
		$(use_with mysql) \
		$(use_with pcre) \
		$(use_with ssl openssl) \
		$(use_with webdav webdav-props) \
		$(use_with webdav webdav-locks) \
		$(use_with xattr attr) \
		$(use_with zlib)
}

src_compile() {
	emake

	if use doc ; then
		einfo "Building HTML documentation"
		cd doc || die
		emake html
	fi
}

src_test() {
	if [[ ${EUID} -eq 0 ]]; then
		default_src_test
	else
		ewarn "test skipped, please re-run as root if you wish to test ${PN}"
	fi
}

src_install() {
	default

	# init script stuff
	newinitd "${FILESDIR}"/lighttpd.initd lighttpd
	newconfd "${FILESDIR}"/lighttpd.confd lighttpd
	use fam && has_version app-admin/fam && \
		{ sed -i 's/after famd/need famd/g' "${D}"/etc/init.d/lighttpd || die; }

	# configs
	insinto /etc/lighttpd
	doins "${FILESDIR}"/conf/lighttpd.conf
	doins "${FILESDIR}"/conf/mime-types.conf
	doins "${FILESDIR}"/conf/mod_cgi.conf
	doins "${FILESDIR}"/conf/mod_fastcgi.conf

	# update lighttpd.conf directives based on conditionals
	update_config

	# docs
	dodoc AUTHORS README NEWS doc/scripts/*.sh
	newdoc doc/config//lighttpd.conf lighttpd.conf.distrib
	use ipv6 && readme.gentoo_create_doc

	use doc && dodoc -r doc

	docinto txt
	dodoc doc/outdated/*.txt

	# logrotate
	insinto /etc/logrotate.d
	newins "${FILESDIR}"/lighttpd.logrotate-r1 lighttpd

	keepdir /var/l{ib,og}/lighttpd /var/www/localhost/htdocs
	fowners lighttpd:lighttpd /var/l{ib,og}/lighttpd
	fperms 0750 /var/l{ib,og}/lighttpd

	#spawn-fcgi may optionally be installed via www-servers/spawn-fcgi
	rm -f "${D}"/usr/bin/spawn-fcgi "${D}"/usr/share/man/man1/spawn-fcgi.*

	use minimal && remove_non_essential

	systemd_dounit "${FILESDIR}/${PN}.service"
	systemd_dotmpfilesd "${FILESDIR}/${PN}.tmpfiles.conf"
}

pkg_postinst () {
	use ipv6 && readme.gentoo_print_elog

	if [[ -f ${ROOT}etc/conf.d/spawn-fcgi.conf ]] ; then
		einfo "spawn-fcgi is now provided by www-servers/spawn-fcgi."
		einfo "spawn-fcgi's init script configuration is now located"
		einfo "at /etc/conf.d/spawn-fcgi."
	fi

	if [[ -f ${ROOT}etc/lighttpd.conf ]] ; then
		elog "Gentoo has a customized configuration,"
		elog "which is now located in /etc/lighttpd.  Please migrate your"
		elog "existing configuration."
	fi
}