#!/bin/sh

if [ "$ACTION" = "ifup" ]; then
    NAME="ruantiblock"
    RUAB_CMD="/usr/bin/ruantiblock"
    CONFIG_FILE="/etc/ruantiblock/ruantiblock.conf"
    USER_INSTANCES_COMMON="/usr/share/ruantiblock/user_instances_common"
    CONFIG_SCRIPT_USER_INSTANCES="/usr/share/ruantiblock/config_script_user_instances"
    USER_INSTANCES_DIR="/etc/ruantiblock/user_instances"
    USER_INSTANCE_VARS="U_ENABLED U_NAME U_PROXY_MODE U_TOR_TRANS_PORT U_ONION_DNS_ADDR U_IF_VPN U_VPN_GW_IP U_T_PROXY_TYPE U_T_PROXY_PORT_TCP U_T_PROXY_PORT_UDP U_T_PROXY_ALLOW_UDP U_USER_ENTRIES_DNS U_USER_ENTRIES_REMOTE U_ENABLE_ENTRIES_REMOTE_PROXY U_ENABLE_FPROXY U_FPROXY_LIST"
    USER_INSTANCES_MAX=5
    DEBUG=0
    IF_VPN_CURRENT=""

    ruab_route_status=$($RUAB_CMD raw-status)
    [ $ruab_route_status -eq 1 -o $ruab_route_status -eq 2 ] && exit 0

    UCI_CMD="$(which uci)"
    if [ $? -ne 0 ]; then
        echo " Error! UCI doesn't exists" >&2
        exit 1
    fi

    [ -f "$CONFIG_FILE" ] && . "$CONFIG_FILE"

    VPN_ROUTE_CHECK=$($UCI_CMD get ruantiblock.config.vpn_route_check)
    [ "$VPN_ROUTE_CHECK" != "0" ] && exit 0

    PROXY_MODE=$($UCI_CMD get ruantiblock.config.proxy_mode)
    if [ "$PROXY_MODE" = "2" ]; then
        IF_VPN_CURRENT=$($UCI_CMD get ruantiblock.config.if_vpn)
    fi

    if [ "$DEVICE" != "$IF_VPN_CURRENT" ]; then

        . "$USER_INSTANCES_COMMON"

        for inst in $(GetUserInstances 2)
        do
            IncludeUserInstanceVars "$inst"
            if [ "$DEVICE" = "$U_IF_VPN" ]; then
                IF_VPN_CURRENT="$U_IF_VPN"

                if [ $DEBUG -ge 1 ]; then
                    echo "  ruantiblock-vpn-iface-script: U_NAME=${U_NAME} U_IF_VPN=${U_IF_VPN}" >&2
                    logger -p "user.debug" -t "ruantiblock-hotplug-script" "U_NAME=${U_NAME} U_IF_VPN=${U_IF_VPN}"
                fi

                break
            fi
            ClearUserInstanceVars
        done
    fi

    if [ "$DEVICE" = "$IF_VPN_CURRENT" ]; then
        if [ $DEBUG -ge 1 ]; then
            echo "  ruantiblock-vpn-iface-script: IF_VPN_CURRENT=${IF_VPN_CURRENT} ACTION=\"${ACTION}\" DEVICE=${DEVICE} INTERFACE=${INTERFACE}" >&2
            logger -p "user.debug" -t "ruantiblock-hotplug-script" "IF_VPN_CURRENT=${IF_VPN_CURRENT} ACTION=\"${ACTION}\" DEVICE=${DEVICE} INTERFACE=${INTERFACE}"
        fi

        sleep 5
        $RUAB_CMD reload
    fi
fi