# Copyright 1999-2019 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI="6"

# needed to make webapp-config dep optional
WEBAPP_OPTIONAL="yes"
inherit flag-o-matic webapp java-pkg-opt-2 user systemd toolchain-funcs

DESCRIPTION="ZABBIX is software for monitoring of your applications, network and servers"
HOMEPAGE="https://www.zabbix.com/"
MY_P=${P/_/}
MY_PV=${PV/_/}
SRC_URI="https://prdownloads.sourceforge.net/zabbix/${MY_P}.tar.gz"
LICENSE="GPL-2"
SLOT="0"
WEBAPP_MANUAL_SLOT="yes"
KEYWORDS="~amd64 ~x86"
IUSE="+agent java curl frontend ipv6 xmpp ldap libxml2 mysql openipmi oracle postgres proxy server ssh ssl snmp sqlite odbc static"
REQUIRED_USE="|| ( agent frontend proxy server )
	proxy? ( ^^ ( mysql oracle postgres sqlite odbc ) )
	server? ( ^^ ( mysql oracle postgres sqlite odbc ) )
	static? ( !oracle !snmp )"

COMMON_DEPEND="snmp? ( net-analyzer/net-snmp )
	ldap? (
		net-nds/openldap
		=dev-libs/cyrus-sasl-2*
		net-libs/gnutls
	)
	mysql? ( >=virtual/mysql-5.0.3 )
	sqlite? ( >=dev-db/sqlite-3.3.5 )
	postgres? ( dev-db/postgresql:* )
	oracle? ( >=dev-db/oracle-instantclient-basic-10.0.0.0 )
	xmpp? ( dev-libs/iksemel )
	libxml2? ( dev-libs/libxml2 )
	curl? ( net-misc/curl )
	openipmi? ( sys-libs/openipmi )
	ssh? ( net-libs/libssh2 )
	java? ( virtual/jdk:* )
	odbc? ( dev-db/unixODBC )
	ssl? ( dev-libs/openssl:=[-bindist] )"

RDEPEND="${COMMON_DEPEND}
	proxy? ( net-analyzer/fping )
	server? ( net-analyzer/fping
		app-admin/webapp-config )
	java?	(
		>=virtual/jre-1.4
		dev-java/slf4j-api
	)
	frontend? (
		>=dev-lang/php-5.3.0[bcmath,ctype,sockets,gd,truetype,xml,session,xmlreader,xmlwriter,nls,sysvipc,unicode]
		|| ( dev-lang/php[apache2] dev-lang/php[cgi] dev-lang/php[fpm] )
		mysql? ( dev-lang/php[mysqli] )
		odbc? ( dev-lang/php[odbc] )
		oracle? ( dev-lang/php[oci8-instant-client] )
		postgres? ( dev-lang/php[postgres] )
		sqlite? ( dev-lang/php[sqlite] )
		media-libs/gd[png]
		app-admin/webapp-config )"
DEPEND="${COMMON_DEPEND}
	static? (
		ldap? (
			net-nds/openldap[static-libs]
			=dev-libs/cyrus-sasl-2*[static-libs]
			net-libs/gnutls[static-libs]
		)
	mysql? ( >=virtual/mysql-5.0.3[static-libs] )
	sqlite? ( >=dev-db/sqlite-3.3.5[static-libs] )
	postgres? ( dev-db/postgresql:*[static-libs] )
	libxml2? ( dev-libs/libxml2[static-libs] )
	curl? ( net-misc/curl[static-libs] )
	ssh? ( net-libs/libssh2[static-libs] )
	odbc? ( dev-db/unixODBC[static-libs] )
	)
	virtual/pkgconfig"

S=${WORKDIR}/${MY_P}

ZABBIXJAVA_BASE="opt/zabbix_java"

pkg_setup() {
	if use oracle; then
		if [ -z "${ORACLE_HOME}" ]; then
			eerror
			eerror "The environment variable ORACLE_HOME must be set"
			eerror "and point to the correct location."
			eerror "It looks like you don't have Oracle installed."
			eerror
			die "Environment variable ORACLE_HOME is not set"
		fi
		if has_version 'dev-db/oracle-instantclient-basic'; then
			ewarn
			ewarn "Please ensure you have a full install of the Oracle client."
			ewarn "dev-db/oracle-instantclient* is NOT sufficient."
			ewarn
		fi
	fi

	if use frontend; then
		webapp_pkg_setup
	fi

	enewgroup zabbix
	enewuser zabbix -1 -1 /var/lib/zabbix/home zabbix
}

java_prepare() {
	cd "${S}/src/zabbix_java/lib"
	rm -v *.jar || die

	java-pkg_jar-from slf4j-api
}

src_prepare() {
	default
}

src_configure() {
	econf \
		$(use_enable server) \
		$(use_enable proxy) \
		$(use_enable agent) \
		$(use_enable ipv6) \
		$(use_enable static) \
		$(use_enable java) \
		$(use_with ldap) \
		$(use_with snmp net-snmp) \
		$(use_with mysql) \
		$(use_with postgres postgresql) \
		$(use_with oracle) \
		$(use_with sqlite sqlite3) \
		$(use_with xmpp jabber) \
		$(use_with curl libcurl) \
		$(use_with openipmi openipmi) \
		$(use_with ssh ssh2) \
		$(use_with libxml2) \
		$(use_with odbc unixodbc) \
		$(use_with ssl openssl) \
		|| die "econf failed"
}

src_compile() {
	if [ -f Makefile ] || [ -f GNUmakefile ] || [ -f makefile ]; then
		emake AR="$(tc-getAR)" RANLIB="$(tc-getRANLIB)" || die "emake failed"
	fi
}

src_install() {
	dodir \
		/etc/zabbix \
		/var/lib/zabbix \
		/var/lib/zabbix/home \
		/var/lib/zabbix/scripts \
		/var/lib/zabbix/alertscripts \
		/var/lib/zabbix/externalscripts \
		/var/log/zabbix

	keepdir \
		/etc/zabbix \
		/var/lib/zabbix \
		/var/lib/zabbix/home \
		/var/lib/zabbix/scripts \
		/var/lib/zabbix/alertscripts \
		/var/lib/zabbix/externalscripts \
		/var/log/zabbix

	if use server; then
		insinto /etc/zabbix
		doins "${FILESDIR}/3.0"/zabbix_server.conf
		doinitd "${FILESDIR}/3.0"/init.d/zabbix-server
		dosbin src/zabbix_server/zabbix_server
		fowners zabbix:zabbix /etc/zabbix/zabbix_server.conf
		fperms 0640 /etc/zabbix/zabbix_server.conf
		dodir /usr/share/zabbix
		/bin/cp -R "${S}/database/" "${D}"/usr/share/zabbix/
		systemd_dounit "${FILESDIR}/zabbix-server.service"
		systemd_newtmpfilesd "${FILESDIR}/zabbix-server.tmpfiles" zabbix-server.conf
	fi

	if use proxy; then
		doinitd "${FILESDIR}/3.0"/init.d/zabbix-proxy
		dosbin src/zabbix_proxy/zabbix_proxy
		insinto /etc/zabbix
		doins "${FILESDIR}/3.0"/zabbix_proxy.conf
		dodir /usr/share/zabbix
		/bin/cp -R "${S}/database/" "${D}"/usr/share/zabbix/
		systemd_dounit "${FILESDIR}/zabbix-proxy.service"
		systemd_newtmpfilesd "${FILESDIR}/zabbix-proxy.tmpfiles" zabbix-proxy.conf
	fi

	if use agent; then
		insinto /etc/zabbix
		doins "${FILESDIR}/3.0"/zabbix_agentd.conf
		doinitd "${FILESDIR}/3.0"/init.d/zabbix-agentd
		dosbin src/zabbix_agent/zabbix_agentd
		dobin \
			src/zabbix_sender/zabbix_sender \
			src/zabbix_get/zabbix_get
		fowners zabbix:zabbix /etc/zabbix/zabbix_agentd.conf
		fperms 0640 /etc/zabbix/zabbix_agentd.conf
		systemd_dounit "${FILESDIR}/zabbix-agentd.service"
		systemd_newtmpfilesd "${FILESDIR}/zabbix-agentd.tmpfiles" zabbix-agentd.conf
	fi

	fowners zabbix:zabbix \
		/etc/zabbix \
		/var/lib/zabbix \
		/var/lib/zabbix/home \
		/var/lib/zabbix/scripts \
		/var/lib/zabbix/alertscripts \
		/var/lib/zabbix/externalscripts \
		/var/log/zabbix
	fperms 0750 \
		/etc/zabbix \
		/var/lib/zabbix \
		/var/lib/zabbix/home \
		/var/lib/zabbix/scripts \
		/var/lib/zabbix/alertscripts \
		/var/lib/zabbix/externalscripts \
		/var/log/zabbix

	dodoc README INSTALL NEWS ChangeLog \
		conf/zabbix_agentd.conf \
		conf/zabbix_proxy.conf \
		conf/zabbix_agentd/userparameter_examples.conf \
		conf/zabbix_agentd/userparameter_mysql.conf \
		conf/zabbix_server.conf

	if use frontend; then
		webapp_src_preinst
		cp -R frontends/php/* "${D}/${MY_HTDOCSDIR}"
		webapp_configfile \
			"${MY_HTDOCSDIR}"/include/db.inc.php \
			"${MY_HTDOCSDIR}"/include/config.inc.php
		webapp_src_install
	fi

	if use java; then
	   dodir \
	   	/${ZABBIXJAVA_BASE} \
		/${ZABBIXJAVA_BASE}/bin \
		/${ZABBIXJAVA_BASE}/lib
	   keepdir /${ZABBIXJAVA_BASE}
	   exeinto /${ZABBIXJAVA_BASE}/bin
	   doexe src/zabbix_java/bin/zabbix-java-gateway-${MY_PV}.jar
	   exeinto /${ZABBIXJAVA_BASE}/lib
	   doexe \
	   	src/zabbix_java/lib/logback-classic-0.9.27.jar \
		src/zabbix_java/lib/logback-console.xml \
		src/zabbix_java/lib/logback-core-0.9.27.jar \
		src/zabbix_java/lib/logback.xml \
		src/zabbix_java/lib/android-json-4.3_r3.1.jar \
		src/zabbix_java/lib/slf4j-api-1.6.1.jar
	   exeinto /${ZABBIXJAVA_BASE}/
	   doexe \
	   	src/zabbix_java/settings.sh \
		src/zabbix_java/startup.sh \
		src/zabbix_java/shutdown.sh
	   fowners -R zabbix:zabbix /${ZABBIXJAVA_BASE}
	fi
}

pkg_postinst() {
	if use server || use proxy ; then
		elog
		elog "You may need to configure your database for Zabbix,"
		elog "if you have not already done so. "
		elog

		zabbix_homedir=$(egethome zabbix)
		if [ -n "${zabbix_homedir}" ] && \
		   [ "${zabbix_homedir}" != "/var/lib/zabbix/home" ]; then
			ewarn
			ewarn "The user 'zabbix' should have his homedir changed"
			ewarn "to /var/lib/zabbix/home if you want to use"
			ewarn "custom alert scripts."
			ewarn
			ewarn "A real homedir might be needed for configfiles"
			ewarn "for custom alert scripts (e.g. ~/.sendxmpprc when"
			ewarn "using sendxmpp for Jabber alerts)."
			ewarn
			ewarn "To change the homedir use:"
			ewarn "  usermod -d /var/lib/zabbix/home zabbix"
			ewarn
		fi
	fi

	if use server; then
		elog
		elog "For distributed monitoring you have to run:"
		elog
		elog "zabbix_server -n <nodeid>"
		elog
		elog "This will convert database data for use with Node ID"
		elog "and also adds a local node."
		elog
	fi

	elog "--"
	elog
	elog "You may need to add these lines to /etc/services:"
	elog
	elog "zabbix-agent     10050/tcp Zabbix Agent"
	elog "zabbix-agent     10050/udp Zabbix Agent"
	elog "zabbix-trapper   10051/tcp Zabbix Trapper"
	elog "zabbix-trapper   10051/udp Zabbix Trapper"
	elog

	if use server || use proxy ; then
		# check for fping
		fping_perms=$(stat -c %a /usr/sbin/fping 2>/dev/null)
		case "${fping_perms}" in
			4[157][157][157])
				;;
			*)
				ewarn
				ewarn "If you want to use the checks 'icmpping' and 'icmppingsec',"
				ewarn "you have to make /usr/sbin/fping setuid root and executable"
				ewarn "by everyone. Run the following command to fix it:"
				ewarn
				ewarn "  chmod u=rwsx,g=rx,o=rx /usr/sbin/fping"
				ewarn
				ewarn "Please be aware that this might impose a security risk,"
				ewarn "depending on the code quality of fping."
				ewarn
				;;
		esac
	fi
}