#!/bin/sh
PHTTP_CACHE=${PHTTP_CACHE:-/dev/shm/phttp}
mkdir -p $PHTTP_CACHE/meta $PHTTP_CACHE/files || exit 1

make_sum() {
	echo "$@" | sha512sum | head -c72
	echo
}

get_with_arguments() {
	local BASENAME
	BASENAME=$(make_sum $@)
	[ -e $PHTTP_CACHE/files/$BASENAME ] && {
		echo "$(cat $PHTTP_CACHE/meta/$BASENAME) $PHTTP_CACHE/files/$BASENAME"
		return
	}
	local META
	META=$(curl -sL -w "%{content_type} %{url_effective}\n" $@ -o "$PHTTP_CACHE/files/$BASENAME") && {
		META="$(echo $META | rev | cut -d/ -f2- | rev)/"
		echo "$META $PHTTP_CACHE/files/$BASENAME"
		echo "$META" > $PHTTP_CACHE/meta/$BASENAME
		return
	}
	return 1
}

get_with_arguments $@