# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/net-www/apache/apache-2.2.4.ebuild,v 1.2 2007/01/28 20:00:33 chtekk Exp $

inherit eutils flag-o-matic gnuconfig multilib autotools

# latest gentoo apache files
GENTOO_PATCHNAME="gentoo-apache-${PV}"
GENTOO_PATCHSTAMP="20070121"
GENTOO_DEVSPACE="phreak"
GENTOO_PATCHDIR="${WORKDIR}/${GENTOO_PATCHNAME}"

DESCRIPTION="The Apache Web Server."
HOMEPAGE="http://httpd.apache.org/"
SRC_URI="mirror://apache/httpd/httpd-${PV}.tar.bz2
		http://dev.gentoo.org/~${GENTOO_DEVSPACE}/dist/apache/${GENTOO_PATCHNAME}-${GENTOO_PATCHSTAMP}.tar.bz2"

# some helper scripts are apache-1.1, thus both are here
LICENSE="Apache-2.0 Apache-1.1"

SLOT="2"
KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~x86-fbsd"
IUSE="debug doc ldap mpm-event mpm-peruser mpm-prefork mpm-worker no-suexec selinux ssl static-modules threads"

DEPEND="app-misc/mime-types
		dev-lang/perl
		=dev-libs/apr-1*
		=dev-libs/apr-util-1*
		dev-libs/expat
		dev-libs/libpcre
		sys-libs/zlib
		ldap? ( =net-nds/openldap-2* )
		selinux? ( sec-policy/selinux-apache )
		ssl? ( dev-libs/openssl )"
RDEPEND="${DEPEND}"

S="${WORKDIR}/httpd-${PV}"

pkg_setup() {
	if use ldap && ! built_with_use 'dev-libs/apr-util' ldap ; then
		eerror "dev-libs/apr-util is missing LDAP support. For apache to have"
		eerror "ldap support, apr-util must be built with the ldap USE-flag"
		eerror "enabled."
		die "ldap USE-flag enabled while not supported in apr-util"
	fi

	# select our MPM
	MPM_LIST="event peruser prefork worker"
	for x in ${MPM_LIST} ; do
		if use mpm-${x} ; then
			if [[ "x${mpm}" == "x" ]] ; then
				mpm=${x}
				einfo "Selected MPM: ${mpm}"
			else
				eerror "You have selected more then one mpm USE-flag."
				eerror "Only one MPM is supported."
				die "more then one mpm was specified"
			fi
		fi
	done

	if [[ "x${mpm}" == "x" ]] ; then
		if use threads ; then
			mpm=worker
			einfo "Selected default threaded MPM: ${mpm}";
		else
			mpm=prefork
			einfo "Selected default MPM: ${mpm}";
		fi
	fi

	# setup apache user and group
	enewgroup apache 81
	enewuser apache 81 -1 /var/www apache
}

src_unpack() {
	unpack ${A}
	cd "${S}"

	# Use correct multilib libdir in gentoo patches
	sed -i -e "s:/usr/lib:/usr/$(get_libdir):g" \
		"${GENTOO_PATCHDIR}"/{conf/httpd.conf,init/*,patches/config.layout,scripts/Makefile.suexec,scripts/suexec2-config} \
		|| die "libdir sed failed"

	#### Patch Organization
	# 00-19 Gentoo specific  (00_all_some-title.patch)
	# 20-39 Additional MPMs  (20_all_${MPM}_some-title.patch)
	# 40-59 USE-flag based   (40_all_${USE}_some-title.patch)
	# 60-79 Version specific (60_all_${PV}_some-title.patch)
	# 80-99 Security patches (80_all_${PV}_cve-####-####.patch)

	EPATCH_SUFFIX="patch"
	epatch "${GENTOO_PATCHDIR}"/patches/[0-1]*
	if $(ls "${GENTOO_PATCHDIR}"/patches/[2-3]?_*_${mpm}_* &>/dev/null) ; then
		epatch "${GENTOO_PATCHDIR}"/patches/[2-3]?_*_${mpm}_*
	fi
	for uf in ${IUSE} ; do
		if use ${uf} && $(ls "${GENTOO_PATCHDIR}"/patches/[4-5]?_*_${uf}_* &>/dev/null) ; then
			epatch "${GENTOO_PATCHDIR}"/patches/[4-5]?_*_${uf}_*
		fi
	done
	if $(ls "${GENTOO_PATCHDIR}"/patches/[6-9]?_*_${PV}_* &>/dev/null) ; then
		epatch "${GENTOO_PATCHDIR}"/patches/[6-9]?_*_${PV}_*
	fi

	# avoid utf-8 charset problems
	export LC_CTYPE=C

	# setup the filesystem layout config
	cat "${GENTOO_PATCHDIR}"/patches/config.layout >> config.layout
	sed -i -e "s:version:${PF}:g" config.layout

	# patched-in MPMs need the build environment rebuilt
	sed -i -e '/sinclude/d' configure.in
	AT_GNUCONF_UPDATE=yes AT_M4DIR=build eautoreconf
}

src_compile() {
	local modtype
	if use static-modules ; then
		modtype="static"
	else
		modtype="shared"
	fi

	select_modules_config || die "determining modules failed"

	local myconf=""
	use ldap \
		&& mods="${mods} ldap authnz_ldap" \
		&& myconf="${myconf} --enable-authnz-ldap=${modtype}" \
		&& myconf="${myconf} --enable-ldap=${modtype}"
	use ssl \
		&& mods="${mods} ssl" \
		&& myconf="${myconf} --with-ssl=/usr --enable-ssl=${modtype}"

	# Fix for bug #24215 - robbat2@gentoo.org, 30 Oct 2003
	# We pre-load the cache with the correct answer! This avoids
	# it violating the sandbox. This may have to be changed for
	# non-Linux systems or if sem_open changes on Linux. This
	# hack is built around documentation in /usr/include/semaphore.h
	# and the glibc (pthread) source.
	echo 'ac_cv_func_sem_open=${ac_cv_func_sem_open=no}' >> "${S}/config.cache"

	if use no-suexec ; then
		myconf="${myconf} --disable-suexec"
	else
		mods="${mods} suexec"
		myconf="${myconf} $(${GENTOO_PATCHDIR}/scripts/suexec2-config --config)"
		myconf="${myconf} \
				--with-suexec-bin=/usr/sbin/suexec2 \
				--enable-suexec=${modtype}"
	fi

	# common confopts
	myconf="--cache-file='${S}/config.cache' \
			--with-mpm=${mpm} \
			--with-perl=/usr/bin/perl \
			--with-expat=/usr \
			--with-z=/usr \
			--with-apr=/usr \
			--with-apr-util=/usr \
			--with-pcre=/usr \
			--with-port=80 \
			--enable-layout=Gentoo \
			--with-program-name=apache2 \
			${myconf} \
			${MY_BUILTINS}"

	# debugging support
	if use debug ; then
		myconf="${myconf} --enable-maintainer-mode"
	fi

	econf ${myconf} || die "econf failed: please submit a bug report to bugs.gentoo.org, including your config.layout and config.log"

	sed -i -e 's:apache2\.conf:httpd.conf:' include/ap_config_auto.h

	emake || die "emake failed"
}

src_install () {
	#### DEFAULT SETUP & INSTALL

	# general install
	emake DESTDIR="${D}" install || die "emake install failed"

	#### CLEAN-UP
	rm -Rf "${D}"/etc
	rm -f "${D}"/usr/sbin/envvars*
	rm -f "${D}"/usr/sbin/apachectl

	#### CONFIGURATION
	insinto /etc/apache2

	# restore the magic file
	doins docs/conf/magic

	# This is a mapping of module names to the -D options in APACHE2_OPTS
	# Used for creating optional LoadModule lines
	mod_defines="info:INFO status:INFO
				ldap:LDAP authnz_ldap:AUTH_LDAP
				proxy:PROXY proxy_connect:PROXY proxy_http:PROXY
				proxy_ajp:PROXY proxy_balancer:PROXY
				ssl:SSL
				suexec:SUEXEC
				userdir:USERDIR"

	# create our LoadModule lines
	if ! use static-modules ; then
		load_module=""
		moddir="${D}/usr/$(get_libdir)/apache2/modules"
		for m in ${mods} ; do
			endid="no"

			if [[ -e "${moddir}/mod_${m}.so" ]] ; then
				for def in ${mod_defines} ; do
					if [[ "${m}" == "${def%:*}" ]] ; then
						load_module="${load_module}\n<IfDefine ${def#*:}>"
						endid="yes"
					fi
				done
				load_module="${load_module}\nLoadModule ${m}_module modules/mod_${m}.so"
				if [[ "${endid}" == "yes" ]] ; then
					load_module="${load_module}\n</IfDefine>"
				fi
			fi
		done
	fi
	sed -i -e "s:%%LOAD_MODULE%%:${load_module}:" \
		"${GENTOO_PATCHDIR}"/conf/httpd.conf || die "sed failed"

	# install our configuration	
	doins -r "${GENTOO_PATCHDIR}"/conf/*

	insinto /etc/logrotate.d
	newins "${GENTOO_PATCHDIR}"/scripts/apache2-logrotate apache2

	# generate a sane default APACHE2_OPTS
	APACHE2_OPTS="-D DEFAULT_VHOST -D INFO -D LANGUAGE"
	use doc && APACHE2_OPTS="${APACHE2_OPTS} -D MANUAL"
	use ssl && APACHE2_OPTS="${APACHE2_OPTS} -D SSL -D SSL_DEFAULT_VHOST"
	use no-suexec || APACHE2_OPTS="${APACHE2_OPTS} -D SUEXEC"

	sed -i -e "s:APACHE2_OPTS=\".*\":APACHE2_OPTS=\"${APACHE2_OPTS}\":" \
		"${GENTOO_PATCHDIR}"/init/apache2.confd || die "sed failed"

	mv -f "${D}"/etc/apache2/apache2-builtin-mods "${D}"/etc/apache2/apache2-builtin-mods-2.2

	newconfd "${GENTOO_PATCHDIR}"/init/apache2.confd apache2
	newinitd "${GENTOO_PATCHDIR}"/init/apache2.initd apache2

	# link apache2ctl to the init script
	dosym /etc/init.d/apache2 /usr/sbin/apache2ctl

	#### HELPER SCRIPTS
	exeinto /usr/sbin
	for i in apache2logserverstatus apache2splitlogfile suexec2-config ; do
		doexe "${GENTOO_PATCHDIR}"/scripts/${i}
	done
	use ssl && doexe "${GENTOO_PATCHDIR}"/scripts/gentestcrt.sh

	for i in logresolve.pl split-logfile log_server_status ; do
		doexe support/${i}
	done

	# needed for suexec2-config
	insinto /usr/$(get_libdir)/apache2/build
	doins "${GENTOO_PATCHDIR}"/scripts/Makefile.suexec
	doins support/suexec.c

	#### SLOTTING
	cd "${D}"

	# sbin binaries
	slotmv="apxs htpasswd htdigest rotatelogs logresolve log_server_status
			ab checkgid dbmmanage split-logfile suexec"
	for i in ${slotmv} ; do
		mv -f usr/sbin/${i} usr/sbin/${i}2
	done
	mv -f usr/sbin/logresolve.pl usr/sbin/logresolve2.pl

	# man.1
	for i in dbmmanage htdigest htpasswd ; do
		mv -f usr/share/man/man1/${i}.1 usr/share/man/man1/${i}2.1
	done

	# man.8
	for i in ab apxs logresolve rotatelogs suexec ; do
		mv -f usr/share/man/man8/${i}.8 usr/share/man/man8/${i}2.8
	done

	mv -f usr/share/man/man8/httpd.8 usr/share/man/man8/apache2.8

	# we don't use apachectl anymore, it's symlinked to the init script now
	rm -f usr/share/man/man8/apachectl.8

	#### DOCS
	# basic info
	cd "${S}"
	dodoc ABOUT_APACHE CHANGES LAYOUT README README.platforms VERSIONING

	# drop in a convenient link to the manual
	if use doc ; then
		sed -i -e "s:VERSION:${PVR}:" "${D}/etc/apache2/modules.d/00_apache_manual.conf"
	else
		rm -f "${D}/etc/apache2/modules.d/00_apache_manual.conf"
		rm -Rf "${D}/usr/share/doc/${PF}/manual"
	fi

	# the default webroot gets stored in /usr/share/doc
	ebegin "Installing default webroot to /usr/share/doc/${PF}"
	mv -f "${D}/var/www/localhost" "${D}/usr/share/doc/${PF}/webroot"
	eend $?

	#### PERMISSONS
	# protect the suexec binary
	if ! use no-suexec ; then
		fowners 0:apache /usr/sbin/suexec2
		fperms 4710 /usr/sbin/suexec2
	fi

	keepdir /etc/apache2/vhosts.d
	keepdir /etc/apache2/modules.d

	# empty dirs
	for i in /var/lib/dav /var/log/apache2 /var/cache/apache2 ; do
		keepdir ${i}
		fowners apache:apache ${i}
		fperms 0755 ${i}
	done

	# We'll be needing /etc/apache2/ssl if USE=ssl
	use ssl && keepdir /etc/apache2/ssl

	fperms 0755 /usr/sbin/apache2logserverstatus
	fperms 0755 /usr/sbin/apache2splitlogfile
}

pkg_postinst() {
	# Automatically generate test certificates if ssl USE flag is being set
	if use ssl && [[ ! -e "${ROOT}/etc/apache2/ssl/server.crt" ]] ; then
		cd "${ROOT}"/etc/apache2/ssl
		einfo
		einfo "Generating self-signed test certificate in ${ROOT}/etc/apache2/ssl ..."
		yes "" 2>/dev/null | \
			"${ROOT}"/usr/sbin/gentestcrt.sh >/dev/null 2>&1 || \
			die "gentestcrt.sh failed"
		einfo
	fi

	# we do this here because the default webroot is a copy of the files
	# that exist elsewhere and we don't want them managed/removed by portage
	# when apache is upgraded.

	if [[ -e "${ROOT}/var/www/localhost" ]] ; then
		einfo "The default webroot has not been installed into"
		einfo "${ROOT}/var/www/localhost because the directory already exists"
		einfo "and we do not want to overwrite any files you have put there."
		einfo
		einfo "If you would like to install the latest webroot, please run"
		einfo "emerge --config =${PF}"
	else
		einfo "Installing default webroot to ${ROOT}/var/www/localhost"
		mkdir -p "${ROOT}"/var/www/localhost
		cp -R "${ROOT}"/usr/share/doc/${PF}/webroot/* "${ROOT}"/var/www/localhost
		chown -R apache:0 "${ROOT}"/var/www/localhost
	fi

	# Check for dual/upgrade install
	# The hasq is a hack so we don't throw QA warnings for not putting
	# apache2 in IUSE - the only use of the flag is this warning
	if has_version '=net-www/apache-1*' || ! hasq apache2 ${USE} ; then
		ewarn
		ewarn "Please add the 'apache2' flag to your USE variable and (re)install"
		ewarn "any additional DSO module(s) you may wish to use with Apache-2.x."
		ewarn "Addon modules are configured in ${ROOT}/etc/apache2/modules.d"
		ewarn
	fi

	if has_version '<net-www/apache-2.2.0' ; then
		einfo
		einfo "When upgrading from versions below 2.2.0 to this version, you"
		einfo "need to rebuild all your modules. Please do so for your modules"
		einfo "to continue working correctly."
		einfo
		einfo "Also note that some configuration directives have been"
		einfo "split into their own files under ${ROOT}/etc/apache2/modules.d"
		einfo
		einfo "For more information on what you may need to change, please"
		einfo "see the overview of changes at:"
		einfo "http://httpd.apache.org/docs/2.2/new_features_2_2.html"
		einfo
		einfo "Some modules do not yet work with Apache 2.2."
		einfo "To keep from accidentally downgrading to Apache 2.0, you should"
		einfo "add the following to ${ROOT}/etc/portage/package.mask:"
		einfo
		einfo "    <net-www/apache-2.2.0"
		einfo
	fi
}

pkg_config() {
	einfo "Installing default webroot to ${ROOT}/var/www/localhost"
	mkdir -p "${ROOT}"/var/www/localhost
	cp -R "${ROOT}"/usr/share/doc/${PF}/webroot/* "${ROOT}"/var/www/localhost
	chown -R apache:0 "${ROOT}"/var/www/localhost
}

parse_modules_config() {
	local name=""
	local disable=""
	local version="undef"
	MY_BUILTINS=""
	mods=""
	[[ -f "${1}" ]] || return 1

	for i in $(sed 's/#.*//' < $1) ; do
		if [[ "$i" == "VERSION:" ]] ; then
			version="select"
		elif [[ "${version}" == "select" ]] ; then
			version="$i"
		# start with - option for backwards compatibility only
		elif [[ "$i" == "-" ]] ; then
			disable="true"
		elif [[ -z "${name}" ]] && [[ "$i" != "${i/mod_/}" ]] ; then
			name="${i/mod_/}"
		elif [[ -n "${disable}" ]] || [[ "$i" == "disabled" ]] ; then
			MY_BUILTINS="${MY_BUILTINS} --disable-${name}"
			name="" ; disable=""
		elif [[ "$i" == "static" ]] || use static-modules ; then
			MY_BUILTINS="${MY_BUILTINS} --enable-${name}=static"
			name="" ; disable=""
		elif [[ "$i" == "shared" ]] ; then
			MY_BUILTINS="${MY_BUILTINS} --enable-${name}=shared"
			mods="${mods} ${name}"
			name="" ; disable=""
		else
			ewarn "Parse error in ${1} - unknown option: $i"
		fi
	done

	# reject the file if it's unversioned or doesn't match our
	# package major.minor. This is to make upgrading work smoothly.
	if [[ "${version}" != "${PV%.*}" ]] ; then
		mods=""
		MY_BUILTINS=""
		return 1
	fi

	einfo "Using ${1}"
	einfo "options: ${MY_BUILTINS}"
	einfo "LoadModules: ${mods}"
}

select_modules_config() {
	parse_modules_config "${ROOT}"/etc/apache2/apache2-builtin-mods-2.2 || \
	parse_modules_config "${GENTOO_PATCHDIR}"/conf/apache2-builtin-mods || \
	return 1
}