path: root/mail/pop3vscan/pkg-install

#!/bin/sh

chmods_done=" "

ask() {
    local question default answer

    question=$1
    default=$2
    if [ -z "${PACKAGE_BUILDING}" ]; then
	read -p "${question} [${default}]? " answer
    fi
    if [ x${answer} = x ]; then
	answer=${default}
    fi
    echo ${answer}
}

yesno() {
    local dflt question answer

    question=$1
    dflt=$2
    while :; do
	answer=$(ask "${question}" "${dflt}")
	case "${answer}" in
	[Yy]*)		return 0;;
	[Nn]*)		return 1;;
	esac
	echo "Please answer yes or no."
    done
}

make_account() {
    local u g gcos homeopt home

    u=$1
    g=$2
    gcos=$3
    homeopt=${4:+"-d $4"}

    if pw group show "${g}" >/dev/null 2>&1; then
	echo "You already have a group \"${g}\", so I will use it."
    else
	echo "You need a group \"${g}\"."
	if which -s pw && yesno "Would you like me to create it" y; then
	    pw groupadd ${g} || exit
	    echo "Done."
	else
	    echo "Please create it, and try again."
	    if ! grep -q "^${u}:" ${PASSWD}; then
		echo "While you're at it, please create a user \"${u}\" too,"
		echo "with a default group of \"${g}\"."
	    fi
	    exit 1
	fi
    fi
    
    if pw user show "${u}" >/dev/null 2>&1; then
	echo "You already have a user \"${u}\", so I will use it."
    else
	echo "You need a user \"${u}\"."
	if which -s pw && yesno "Would you like me to create it" y; then
	    pw useradd ${u} -g ${g} -h - ${homeopt} \
		-s ${NONEXISTENT} -c "${gcos}" || exit
	    echo "Done."
	else
	    echo "Please create it, and try again."
	    exit 1
	fi
    fi

    if [ x"$homeopt" = x ]; then
	eval home=~${u}
	if [ ! -d "${home}" ]; then
	    if yesno \
		"Would you like me to create ${u}'s home directory (${home})" y
	    then
		(umask 77 && \
		    mkdir -p ${home}) || exit
		chown -R ${u}:${g} ${home} || exit
	    else
		echo "Please create it, and try again."
		exit 1
	    fi
	fi
    fi
}

case $2 in

POST-INSTALL)
    if which -s pw && which -s lockf; then
	:
    else
	cat <<EOF

This system looks like a pre-2.2 version of FreeBSD.  I see that it
is missing the "lockf" and/or "pw" utilities.  I need these utilities.
Please get them and install them, and try again.  You can get the
sources from:

  ftp://ftp.freebsd.org/pub/FreeBSD/FreeBSD-current/src/usr.bin/lockf.tar.gz
  ftp://ftp.freebsd.org/pub/FreeBSD/FreeBSD-current/src/usr.sbin/pw.tar.gz

EOF
	exit 1
    fi

    user=pop3vscan
    group=mail
    spooldir=/var/spool/pop3vscan
    etcdir=${PREFIX:-$PKG_PREFIX}/etc

    echo ""
    make_account ${user} ${group} "POP3VScan Daemon" ${spooldir}

    if [ ! -d ${spooldir} ]; then
	echo "Creating \"${spooldir}\"."
	mkdir -p ${spooldir}
    fi

    echo "Fixing ownerships and modes in \"${spooldir}\"."
    chown -R ${user}:${group} ${spooldir}
    chmod -R go= ${spooldir}

    ;;
esac