# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8
inherit pam systemd toolchain-funcs

if [[ ${PV} == *_rc* ]]; then
	MY_PV="${PV/_rc/-RC}"
else
	MY_PV="${PV/_pre/-}"
fi
MY_SRC="${PN}-${MY_PV}"
MY_URI="http://ftp.porcupine.org/mirrors/postfix-release/experimental"
RC_VER="2.7"

DESCRIPTION="A fast and secure drop-in replacement for sendmail"
HOMEPAGE="https://www.postfix.org/"
SRC_URI="${MY_URI}/${MY_SRC}.tar.gz"
S="${WORKDIR}/${MY_SRC}"

LICENSE="|| ( IBM EPL-2.0 )"
SLOT="0"
KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"

IUSE="+berkdb cdb dovecot-sasl +eai ldap ldap-bind +lmdb mbox memcached mongodb mysql nis pam postgres sasl selinux sqlite ssl tlsrpt"

DEPEND="
	acct-group/postfix
	acct-group/postdrop
	acct-user/postfix
	dev-libs/libpcre2:0
	dev-lang/perl
	berkdb? ( >=sys-libs/db-3.2:* )
	cdb? ( || ( >=dev-db/tinycdb-0.76 >=dev-db/cdb-0.75-r4 ) )
	eai? ( dev-libs/icu:= )
	ldap? ( net-nds/openldap:= )
	ldap-bind? ( net-nds/openldap:=[sasl] )
	lmdb? ( >=dev-db/lmdb-0.9.11:= )
	mongodb? ( >=dev-libs/mongo-c-driver-1.23.0 >=dev-libs/libbson-1.23.0 )
	mysql? ( dev-db/mysql-connector-c:0= )
	nis? ( net-libs/libnsl:= )
	pam? ( sys-libs/pam )
	postgres? ( dev-db/postgresql:* )
	sasl? (  >=dev-libs/cyrus-sasl-2 )
	sqlite? ( dev-db/sqlite:3 )
	ssl? ( >=dev-libs/openssl-1.1.1:0= )
	tlsrpt? ( net-libs/libtlsrpt )
	"

RDEPEND="${DEPEND}
	memcached? ( net-misc/memcached )
	net-mail/mailbase
	!mail-mta/courier
	!mail-mta/esmtp
	!mail-mta/exim
	!mail-mta/msmtp[mta]
	!mail-mta/netqmail
	!mail-mta/nullmailer
	!mail-mta/sendmail
	!mail-mta/opensmtpd
	!mail-mta/ssmtp[mta]
	selinux? ( sec-policy/selinux-postfix )"

REQUIRED_USE="
	ldap-bind? ( ldap sasl )
	tlsrpt? ( ssl )
	"

src_prepare() {
	default
	sed -i -e "/^#define ALIAS_DB_MAP/s|:/etc/aliases|:/etc/mail/aliases|" \
		src/util/sys_defs.h || die "sed failed"
	# change default paths to better comply with portage standard paths
	sed -i -e "s:/usr/local/:/usr/:g" conf/master.cf || die "sed failed"
}

src_configure() {
	# bug #915670
	unset LD_LIBRARY_PATH

	for name in CDB LDAP LMDB MONGODB MYSQL PCRE PGSQL SDBM SQLITE TLSRPT
	do
		local AUXLIBS_${name}=""
	done

	# Make sure LDFLAGS get passed down to the executables.
	local mycc="" mylibs="${LDFLAGS} -ldl"

	# libpcre is EOL. prefer libpcre2
	mycc=" -DHAS_PCRE=2"
	AUXLIBS_PCRE="$(pcre2-config --libs8)"

	use pam && mylibs="${mylibs} -lpam"

	if use ssl; then
		mycc="${mycc} -DUSE_TLS"
		mylibs="${mylibs} -lssl -lcrypto"
	fi

	if ! use eai; then
		mycc="${mycc} -DNO_EAI"
	fi

	if use ldap; then
		mycc="${mycc} -DHAS_LDAP"
		AUXLIBS_LDAP="-lldap -llber"
	fi

	if use lmdb; then
		# default is lmdb
		mycc="${mycc} -DHAS_LMDB -DDEF_DB_TYPE=\\\"lmdb\\\" -DDEF_CACHE_DB_TYPE=\\\"lmdb\\\""
		AUXLIBS_LMDB="-llmdb -lpthread"
	fi

	if use mongodb; then
		mycc="${mycc} -DHAS_MONGODB $(pkg-config --cflags libmongoc-1.0)"
		AUXLIBS_MONGODB="-lmongoc-1.0 -lbson-1.0"
	fi

	if use mysql; then
		mycc="${mycc} -DHAS_MYSQL $(mysql_config --include)"
		AUXLIBS_MYSQL="$(mysql_config --libs)"
	fi

	if use postgres; then
		mycc="${mycc} -DHAS_PGSQL -I$(pg_config --includedir)"
		AUXLIBS_PGSQL="-L$(pg_config --libdir) -lpq"
	fi

	if use sqlite; then
		mycc="${mycc} -DHAS_SQLITE"
		AUXLIBS_SQLITE="-lsqlite3 -lpthread"
	fi

	if use tlsrpt; then
		mycc="${mycc} -DUSE_TLSRPT"
		AUXLIBS_TLSRPT="-ltlsrpt"
	fi

	if use sasl; then
		if use dovecot-sasl; then
			# Set dovecot as default.
			mycc="${mycc} -DDEF_SASL_SERVER=\\\"dovecot\\\""
		fi
		if use ldap-bind; then
			mycc="${mycc} -DUSE_LDAP_SASL"
		fi
		mycc="${mycc} -DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/usr/include/sasl"
		mylibs="${mylibs} -lsasl2"
	elif use dovecot-sasl; then
		mycc="${mycc} -DUSE_SASL_AUTH -DDEF_SERVER_SASL_TYPE=\\\"dovecot\\\""
	fi

	if ! use nis; then
		mycc="${mycc} -DNO_NIS"
	fi

	if ! use berkdb; then
		mycc="${mycc} -DNO_DB"
		if use cdb && ! use lmdb; then
			mycc="${mycc} -DDEF_DB_TYPE=\\\"cdb\\\""
			ewarn
			ewarn "cdb USE flag is on but lmdb USE flag is not. Local database files"
			ewarn "for caches will not work. Consider turning lmdb USE flag on."
			ewarn
		fi
	fi

	if use cdb; then
		mycc="${mycc} -DHAS_CDB -I/usr/include/cdb"
		# Tinycdb is preferred.
		if has_version dev-db/tinycdb ; then
			AUXLIBS_CDB="-lcdb"
		else
			CDB_PATH="/usr/$(get_libdir)"
			for i in cdb.a alloc.a buffer.a unix.a byte.a ; do
				AUXLIBS_CDB="${AUXLIBS_CDB} ${CDB_PATH}/${i}"
			done
		fi
	fi

	sed -i -e "/^RANLIB/s/ranlib/$(tc-getRANLIB)/g" "${S}"/makedefs
	sed -i -e "/^AR/s/ar/$(tc-getAR)/g" "${S}"/makedefs

	emake makefiles \
		shared=yes \
		dynamicmaps=no \
		pie=yes \
		shlib_directory="/usr/$(get_libdir)/postfix/MAIL_VERSION" \
		DEBUG="" \
		CC="$(tc-getCC)" \
		OPT="${CFLAGS}" \
		CCARGS="${mycc}" \
		AUXLIBS="${mylibs} ${AUXLIBS_TLSRPT}" \
		AUXLIBS_CDB="${AUXLIBS_CDB}" \
		AUXLIBS_LDAP="${AUXLIBS_LDAP}" \
		AUXLIBS_LMDB="${AUXLIBS_LMDB}" \
		AUXLIBS_MONGODB="${AUXLIBS_MONGODB}" \
		AUXLIBS_MYSQL="${AUXLIBS_MYSQL}" \
		AUXLIBS_PCRE="${AUXLIBS_PCRE}" \
		AUXLIBS_PGSQL="${AUXLIBS_PGSQL}" \
		AUXLIBS_SDBM="${AUXLIBS_SDBM}" \
		AUXLIBS_SQLITE="${AUXLIBS_SQLITE}"
}

src_install() {
	LD_LIBRARY_PATH="${S}/lib" \
	/bin/sh postfix-install \
		-non-interactive \
		install_root="${D}" \
		config_directory="/etc/postfix" \
		manpage_directory="/usr/share/man" \
		command_directory="/usr/sbin" \
		mailq_path="/usr/bin/mailq" \
		newaliases_path="/usr/bin/newaliases" \
		sendmail_path="/usr/sbin/sendmail" \
		|| die "postfix-install failed"

	# Fix spool removal on upgrade
	rm -Rf "${D}"/var
	keepdir /var/spool/postfix

	# Install rmail for UUCP, closes bug #19127
	dobin auxiliary/rmail/rmail

	# Provide another link for legacy FSH
	dosym ../sbin/sendmail /usr/$(get_libdir)/sendmail

	# Install qshape, posttls-finger, collate and tlstype
	dobin auxiliary/qshape/qshape.pl
	doman man/man1/qshape.1
	dobin bin/posttls-finger
	doman man/man1/posttls-finger.1
	dobin auxiliary/collate/collate.pl
	newdoc auxiliary/collate/README README.collate
	dobin auxiliary/collate/tlstype.pl
	dodoc auxiliary/collate/README.tlstype

	# Performance tuning tools and their manuals
	dosbin bin/smtp-{source,sink} bin/qmqp-{source,sink}
	doman man/man1/smtp-{source,sink}.1 man/man1/qmqp-{source,sink}.1

	# Set proper permissions on required files/directories
	keepdir /var/lib/postfix
	fowners -R postfix:postfix /var/lib/postfix
	fperms 0750 /var/lib/postfix
	fowners root:postdrop /usr/sbin/post{drop,queue,log}
	fperms 02755 /usr/sbin/post{drop,queue,log}

	keepdir /etc/postfix
	keepdir /etc/postfix/postfix-files.d
	if use mbox; then
		mypostconf="mail_spool_directory=/var/mail"
	else
		mypostconf="home_mailbox=.maildir/"
	fi
	LD_LIBRARY_PATH="${S}/lib" \
	"${D}"/usr/sbin/postconf -c "${D}"/etc/postfix \
		-e ${mypostconf} || die "postconf failed"

	insinto /etc/postfix
	newins "${FILESDIR}"/smtp.pass saslpass
	fperms 600 /etc/postfix/saslpass

	newinitd "${FILESDIR}"/postfix.rc6.${RC_VER} postfix
	# do not start mysql/postgres unnecessarily - bug #359913
	use mysql || sed -i -e "s/mysql //" "${D}/etc/init.d/postfix"
	use postgres || sed -i -e "s/postgresql //" "${D}/etc/init.d/postfix"

	dodoc *README COMPATIBILITY HISTORY PORTING RELEASE_NOTES*
	dodoc -r README_FILES/ examples/
	# postfix set-permissions expects uncompressed man files
	docompress -x /usr/share/man

	if use pam; then
		pamd_mimic_system smtp auth account
	fi

	if use sasl; then
		insinto /etc/sasl2
		newins "${FILESDIR}"/smtp.sasl smtpd.conf
	fi

	# header files
	insinto /usr/include/postfix
	doins include/*.h

	systemd_dounit "${FILESDIR}/${PN}.service"
}

pkg_postinst() {
	if ! use berkdb && ! use cdb && ! use lmdb; then
		ewarn
		ewarn "No backend for local database files is configured."
		ewarn "newaliases and postmap commands will not work. This"
		ewarn "is not a supported configuration and you are strongly"
		ewarn "recommended to turn one of berkdb, cdb or lmdb USE flags"
		ewarn "on."
		ewarn
	else
		# warn if no aliases database
		# do not assume berkdb
		if [[ ! -e /etc/mail/aliases.db \
		   && ! -e /etc/mail/aliases.cdb \
		   && ! -e /etc/mail/aliases.lmdb ]] ; then
			ewarn "You must edit /etc/mail/aliases to suit your needs"
			ewarn "and then run /usr/bin/newaliases."
		fi
		# run newaliases anyway. otherwise, we might break when switching
		# default database implementation
		"${EROOT}"/usr/bin/newaliases
	fi

	# check and fix file permissions
	"${EROOT}"/usr/sbin/postfix set-permissions

	# hint for configuring tls
	if use ssl ; then
		if "${EROOT}"/usr/sbin/postfix tls all-default-client; then
			elog "To configure client side TLS settings, please run:"
			elog "${EROOT}"/usr/sbin/postfix tls enable-client
		fi
		if "${EROOT}"/usr/sbin/postfix tls all-default-server; then
			elog "To configure server side TLS settings, please run:"
			elog "${EROOT}"/usr/sbin/postfix tls enable-server
		fi
	fi
}