# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/net-proxy/squid/squid-2.7.9.ebuild,v 1.8 2012/08/27 13:20:26 eras Exp $

EAPI="2"

inherit eutils pam toolchain-funcs autotools user

#lame archive versioning scheme..
S_PMV="${PV%%.*}"
S_PV="${PV%.*}"
S_PL="${PV##*.}"
S_PL="${S_PL/_rc/-RC}"
S_PP="${PN}-${S_PV}.STABLE${S_PL}"

DESCRIPTION="A full-featured web proxy cache"
HOMEPAGE="http://www.squid-cache.org/"
SRC_URI="http://www.squid-cache.org/Versions/v${S_PMV}/${S_PV}/${S_PP}.tar.gz"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="alpha amd64 ~arm hppa ia64 ~mips ppc ppc64 sparc x86 ~x86-fbsd"
IUSE="caps pam ldap samba sasl kerberos nis ssl snmp selinux logrotate \
	mysql postgres sqlite \
	zero-penalty-hit \
	pf-transparent ipf-transparent kqueue \
	elibc_uclibc kernel_linux +epoll tproxy"

DEPEND="caps? ( >=sys-libs/libcap-2.16 )
	pam? ( virtual/pam )
	ldap? ( net-nds/openldap )
	kerberos? ( virtual/krb5 )
	ssl? ( dev-libs/openssl )
	sasl? ( dev-libs/cyrus-sasl )
	selinux? ( sec-policy/selinux-squid )
	!x86-fbsd? ( logrotate? ( app-admin/logrotate ) )
	>=sys-libs/db-4
	dev-lang/perl"
RDEPEND="${DEPEND}
	samba? ( net-fs/samba )
	mysql? ( dev-perl/DBD-mysql )
	postgres? ( dev-perl/DBD-Pg )
	sqlite? ( dev-perl/DBD-SQLite )"

S="${WORKDIR}/${S_PP}"

pkg_setup() {
	if use tproxy && ! use caps; then
		eerror "libcap is required by Transparent Proxy support for Netfilter TPROXY!"
		eerror "Please enable caps USE flag and try again."

		die "invalid combination of USE flags"
	fi

	if use zero-penalty-hit; then
		ewarn "This version supports natively IP TOS/Priority mangling,"
		ewarn "but it does not support zph_preserve_miss_tos."
		ewarn "If you need that, please use >=${CATEGORY}/${PN}-3 ."
	fi
	enewgroup squid 31
	enewuser squid 31 -1 /var/cache/squid squid
}

src_prepare() {
	epatch "${FILESDIR}"/${P}-gentoo.patch
	has_version app-crypt/mit-krb5 || epatch "${FILESDIR}"/${PN}-2-heimdal.patch
	eautoreconf
}

src_configure() {
	local basic_modules="getpwnam,NCSA,MSNT"
	use samba && basic_modules="SMB,multi-domain-NTLM,${basic_modules}"
	use ldap && basic_modules="LDAP,${basic_modules}"
	use pam && basic_modules="PAM,${basic_modules}"
	use sasl && basic_modules="SASL,${basic_modules}"
	use nis && ! use elibc_uclibc && basic_modules="YP,${basic_modules}"
	if use mysql || use postgres || use sqlite ; then
		basic_modules="DB,${basic_modules}"
	fi

	local ext_helpers="ip_user,session,unix_group"
	use samba && ext_helpers="wbinfo_group,${ext_helpers}"
	use ldap && ext_helpers="ldap_group,${ext_helpers}"

	local ntlm_helpers="fakeauth"
	use samba && ntlm_helpers="SMB,${ntlm_helpers}"

	local negotiate_helpers=
	use kerberos && local negotiate_helpers="squid_kerb_auth"

	local myconf=""

	# Support for uclibc #61175
	if use elibc_uclibc; then
		myconf="${myconf} --enable-storeio=ufs,diskd,aufs,null"
		myconf="${myconf} --disable-async-io"
	else
		myconf="${myconf} --enable-storeio=ufs,diskd,coss,aufs,null"
		myconf="${myconf} --enable-async-io"
	fi

	if use kernel_linux; then
		myconf="${myconf} --enable-linux-netfilter
			$(use_enable tproxy linux-tproxy)
			$(use_enable epoll)"
	elif use kernel_FreeBSD || use kernel_OpenBSD || use kernel_NetBSD ; then
		myconf="${myconf} $(use_enable kqueue)"
		if use pf-transparent; then
			myconf="${myconf} --enable-pf-transparent"
		elif use ipf-transparent; then
			myconf="${myconf} --enable-ipf-transparent"
		fi
	fi

	export CC=$(tc-getCC)

	econf \
		--sysconfdir=/etc/squid \
		--libexecdir=/usr/libexec/squid \
		--localstatedir=/var \
		--datadir=/usr/share/squid \
		--enable-auth="basic,digest,ntlm,negotiate" \
		--enable-removal-policies="lru,heap" \
		--enable-digest-auth-helpers="password" \
		--enable-basic-auth-helpers="${basic_modules}" \
		--enable-external-acl-helpers="${ext_helpers}" \
		--enable-ntlm-auth-helpers="${ntlm_helpers}" \
		--enable-negotiate-auth-helpers="${negotiate_helpers}" \
		--enable-ident-lookups \
		--enable-useragent-log \
		--enable-cache-digests \
		--enable-delay-pools \
		--enable-referer-log \
		--enable-arp-acl \
		--with-pthreads \
		--with-large-files \
		--enable-htcp \
		--enable-carp \
		--enable-follow-x-forwarded-for \
		--with-maxfd=8192 \
		$(use_with libcap) \
		$(use_enable snmp) \
		$(use_enable ssl) \
		${myconf} || die "econf failed"
}

src_install() {
	make DESTDIR="${D}" install || die "make install failed"

	# need suid root for looking into /etc/shadow
	fowners root:squid /usr/libexec/squid/ncsa_auth
	fowners root:squid /usr/libexec/squid/pam_auth
	fperms 4750 /usr/libexec/squid/ncsa_auth
	fperms 4750 /usr/libexec/squid/pam_auth

	# some cleanups
	rm -f "${D}"/usr/bin/Run*

	dodoc CONTRIBUTORS CREDITS ChangeLog QUICKSTART SPONSORS doc/*.txt \
		helpers/ntlm_auth/no_check/README.no_check_ntlm_auth
	newdoc helpers/basic_auth/SMB/README README.auth_smb
	dohtml helpers/basic_auth/MSNT/README.html RELEASENOTES.html
	newdoc helpers/basic_auth/LDAP/README README.auth_ldap
	doman helpers/basic_auth/LDAP/*.8
	dodoc helpers/basic_auth/SASL/squid_sasl_auth*

	newpamd "${FILESDIR}/squid.pam" squid
	newconfd "${FILESDIR}/squid.confd" squid
	if use logrotate; then
		newinitd "${FILESDIR}/squid.initd-logrotate" squid
		insinto /etc/logrotate.d
		newins "${FILESDIR}/squid.logrotate" squid
	else
		newinitd "${FILESDIR}/squid.initd" squid
		exeinto /etc/cron.weekly
		newexe "${FILESDIR}/squid.cron" squid.cron
	fi

	rm -rf "${D}"/var
	diropts -m0755 -o squid -g squid
	keepdir /var/cache/squid /var/log/squid
}

pkg_postinst() {
	echo
	ewarn "Squid authentication helpers have been installed suid root."
	ewarn "This allows shadow based authentication (see bug #52977 for more)."
	echo
	ewarn "Be careful what type of cache_dir you select!"
	ewarn "   'diskd' is optimized for high levels of traffic, but it might seem slow"
	ewarn "when there isn't sufficient traffic to keep squid reasonably busy."
	ewarn "   If your traffic level is low to moderate, use 'aufs' or 'ufs'."
	echo
	ewarn "Squid can be configured to run in transparent mode like this:"
	ewarn "   ${HILITE}http_port internal-addr:3128 transparent${NORMAL}"
}