#!/bin/bash

set -e

# variables
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

LIB_FILE="/usr/share/lliurex/llxcfg-proxy/llxcfg-proxy.sh"
[ -e "$LIB_FILE" ] || exit 1
. ${LIB_FILE}

VAR_LIST="PROXY_HTTP_PORT PROXY_HOST WWW_PATH PROXY_PATH SRV_IP SRV_NETWORK SRV_DOMAIN SRV_MASK"

# lee variables
eval `/usr/sbin/llxcfg-showvars ${VAR_LIST}`

# funciones

gen_proxy_pac() {
   cat <<EOF
function FindProxyForURL(url,host)
{
	if (isInNet(host, "${SRV_NETWORK}",  "${SRV_MASK}") ||
	    isInNet(host, "127.0.0.1", "255.255.255.255") ||
	    dnsDomainIs(host, "${SRV_DOMAIN}") ||
	    (url.substring (0, 5) == "feed:"))
	{
	    return "DIRECT";
	}
	else{
	    return "PROXY ${PROXY_HOST}:${PROXY_HTTP_PORT}";
	}
}
EOF

}

########
# main #
########

#comprobaciones
[ -z "$PROXY_HTTP_PORT" ] && exit 1
[ -z "$PROXY_HOST" ] && exit 1
# ponemos configuraciones
gen_proxy_pac |skel-install ${WWW_PATH}/${PROXY_PATH}/proxy.pac
exit 0