# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit eutils webapp depend.apache

DESCRIPTION="BackupPC is a high-performance, enterprise-grade backup system"
HOMEPAGE="http://backuppc.sourceforge.net/"
SRC_URI="mirror://sourceforge/backuppc/BackupPC-${PV}.tar.gz"

LICENSE="GPL-2"
KEYWORDS="~x86"
IUSE="apache nosuidcgi"

DEPEND=">=dev-lang/perl-5.6.0"

RDEPEND="${DEPEND}
	app-arch/bzip2
	app-arch/par2cmdline
	virtual/ssh
	dev-perl/Archive-Zip
	dev-perl/Compress-Zlib
	>=dev-perl/File-RsyncP-0.52
	>=net-misc/rsync-2.5.5
	>=app-arch/tar-1.13.7
	samba? (>=net-fs/samba-2.2.0)
	apache? (net-www/apache)"

MY_P="BackupPC-${PV}"
S=${WORKDIR}/${MY_P}

if use apache; then
	CGI=true
else
	CGI=false
fi

pkg_setup() {
	if ${CGI} && ! use nosuidcgi && ! built_with_use perl perlsuid; then
		ewarn "You must have perl installed with perlsuid use flag in order to"
		ewarn "use cgi interface!"
		die
	fi

	webapp_pkg_setup

	# We want to work as backuppc user
	if ! use nosuidcgi; then
		enewgroup backuppc
		enewuser backuppc -1 /bin/bash /var/lib/backuppc backuppc
	fi
}

src_unpack() {
	unpack BackupPC-${PV}.tar.gz
	cd BackupPC-${PV}

	# Adjust the configure script to make BackupPC run as the apache user
	if use nosuidcgi && ${CGI}; then
		sed -i -r 's/\$Conf\{BackupPCUser\} \|\| "backuppc",/$Conf\{BackupPCUser\} \|\| "apache",/' configure.pl
	fi
	
}

src_install () {
	webapp_src_preinst
	cd ${S}

	perl configure.pl \
				--batch \
				--dest-dir ${D} \
				--cgi-dir ${MY_CGIBINDIR}/backuppc \
				--data-dir /var/lib/backuppc \
				--hostname $(hostname) \
				--html-dir ${MY_HTDOCSDIR} \
				--html-dir-url /backuppc \
				--install-dir /usr \
				--uid-ignore \
				&> /dev/null

	# Install conf.d and init.d files
	newinitd ${FILESDIR}/init-script backuppc
	newconfd init.d/gentoo-backuppc.conf backuppc

	# If we dont want cgi interface install docs in /usr/share/doc
	if ! ${CGI};then
		dodoc doc/*.pod
		dohtml doc/*.html
		rm -fr ${D}/usr/doc
	fi

	# Install apache configuration for cgi dir
	if use apache; then
		if [ -d ${APACHE2_MODULES_CONFDIR} ]; then
			insinto ${APACHE2_MODULES_CONFDIR}
			newins ${FILESDIR}/backuppc_apache_module backuppc.conf
		elif [ -d ${APACHE1_MODULES_CONFDIR} ]; then
			insinto ${APACHE1_MODULES_CONFDIR}
			newins ${FILESDIR}/backuppc_apache_module backuppc.conf
		else
			die "There is no apache module confdir"
		fi
	fi

	# Take care about permission on cgi file
	if use nosuidcgi && ${CGI}; then
		webapp_hook_script ${FILESDIR}/hook
	elif ! use nosuidcgi && ${CGI}; then
		webapp_hook_script ${FILESDIR}/hook_suid
	fi
	
	webapp_src_install

	# Set minimal permission for /var/lib/backuppc/*
	for i in `find ${D}var/lib/backuppc`; do
		if ! ${CGI}; then
			fowners backuppc:backuppc ${i/*image/}
		elif use nosuidcgi; then
			fowners apache:apache ${i/*image/}
		elif ! use nosuidcgi; then
			fowners backuppc:backuppc ${i/*image/}
		fi

		if [ -f $i ]; then
			fperms 0640 ${i/*image/}
		fi

		if [ -d $i ]; then
			fperms 0750 ${i/*image/}
		fi
	done

	# Set permission for binary files
	for i in `find ${D}usr/bin/*`; do
		fperms 0755 ${i/*image/}
	done

	dodir etc/backuppc
	insinto etc/backuppc
	touch ${D}etc/backuppc/htpasswd
	fowners apache:apache etc/backuppc/htpasswd
	fperms 0660 etc/backuppc/htpasswd
	
	# If users dont want to use cgi interface - dont even install it...
	if ! ${CGI}; then
		rm -fr ${D}usr/share/webapps
		rm -fr ${D}var/db
	fi
}

pkg_postinst() {
	if ${CGI}; then
		webapp_pkg_postinst
	fi

	# Post install informations
	if use nosuidcgi && ${CGI}; then
		echo ""
		ewarn "WARNING! BackupPC is configured to run as the apache user"
		ewarn "by default. This is a potential security hazard!"
	fi

	if ${CGI}; then
		echo ""
		einfo "Dont forget to restart your apache to load appropriate backuppc"
		einfo "conf!"
		echo ""
		einfo "If you want to set a password for cgi interface, you can do it"
		einfo "by:"
		einfo "htpasswd2 /etc/backuppc/htpasswd USERNAME"
		echo ""
		einfo "You can find CGI interface at:"
		einfo "http://http://localhost/cgi-bin/backuppc/BackupPC_Admin"
	fi
	
	if ${CGI}; then
		echo ""
		einfo "If you had emerge backuppc before, and now change nosuidcgi"
		einfo "flag, you must execute the following command now:"
		if use nosuidcgi; then
			einfo "chown -R apache:apache /var/lib/backuppc"
		else
			einfo "chown -R backuppc:backuppc /var/lib/backuppc"
		fi
		echo ""
	fi
}