#!/bin/sh

POLIPOUSER=%%USER%%
POLIPOGROUP=%%GROUP%%
UID=173
GID=${UID}

POLIPOCACHE=%%PCACHEDIR%%
POLIPOLOG=%%PLOGFILE%%
PPIDDIR=%%PPIDDIR%%
POLIPOPID=%%PPIDFILE%%

if [ "$2" = "PRE-INSTALL" ]; then

	if fgrep "polipo" "%%DESTDIR%%/etc/newsyslog.conf" 2>/dev/null 1>&2; then
		if ! fgrep "polipo.pid" "%%DESTDIR%%/etc/newsyslog.conf" 2>/dev/null 1>&2; then
			echo "==> ERROR: Previous installation left an invalid entry in %%DESTDIR%%/etc/newsyslog.conf."
			echo "==> Please remove the polipo line from this file and try again."
			exit 1
		fi
	fi

	if ! pw groupshow "$POLIPOGROUP" 2>/dev/null 1>&2; then
		if pw groupadd $POLIPOGROUP -g ${GID} ; then
			echo "=> Added group \"$POLIPOGROUP\"."
		else
			echo "=> Adding group \"$POLIPOGROUP\" failed..."
			exit 1
		fi
	fi

	if ! pw usershow "$POLIPOUSER" 2>/dev/null 1>&2; then
		if pw useradd $POLIPOUSER -u ${UID} -g $POLIPOGROUP -h - \
			-s "/sbin/nologin" -d "/nonexistent" \
			-c "polipo web cache"; \
		then
			echo "=> Added user \"$POLIPOUSER\"."
		else
			echo "=> Adding user \"$POLIPOUSER\" failed..."
			exit 1
		fi
	fi

elif [ "$2" = "POST-INSTALL" ]; then

	if [ ! -d "%%DESTDIR%%$PPIDDIR" ]; then
		mkdir -p "%%DESTDIR%%$PPIDDIR" || exit 1
		chgrp "$POLIPOGROUP" "%%DESTDIR%%$PPIDDIR" || exit 1
		chmod g+w "%%DESTDIR%%$PPIDDIR" || exit 1
	fi

	if [ ! -f "%%DESTDIR%%$POLIPOLOG" ]; then
		touch "%%DESTDIR%%$POLIPOLOG" || exit 1
		chown "$POLIPOUSER" "%%DESTDIR%%$POLIPOLOG" || exit 1
		chmod u=rw,g=r,o= "%%DESTDIR%%$POLIPOLOG" || exit 1
	fi

	if ! fgrep "${POLIPOLOG}" "%%DESTDIR%%/etc/newsyslog.conf" 2>/dev/null 1>&2; then
	    echo "Add a line to /etc/newsyslog.conf (or /usr/local/etc/newsyslog.d/polipo if"
	    echo "supported on your system) to enable automatic log file rotation:"
	    echo
	    echo "${POLIPOLOG} ${POLIPOUSER}: 640 3 100 * J ${POLIPOPID} 30"
	    echo
	fi

fi

OSVER=`uname -r | sed -e 's/\..*//'`
if [ ${OSVER} = "8" -o ${OSVER} = "9" ]; then
    CACHEPARENT=`dirname ${POLIPOCACHE}`
    echo "You will need to manually run:"
    echo "  chmod o+x %%DESTDIR%%$CACHEPARENT"
    echo "to ensure the cache is useable."
fi

exit 0