%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2007-2010. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
%%
%%----------------------------------------------------------------------
%% Purpose: This module takes the role of the main megaco module for
%% the transport module. It is used when delivering
%% received messages. The purpose is to be able to do
%% various forms of filtering before passing the message
%% the the megaco stack (by calling the megaco module).
%% It can be controlled with the following flags:
%% allow_recv_message - Shall the received message be
%% delivered.
%% extra_transport_info - Provide extra info from the transport
%% module.
%%----------------------------------------------------------------------
-module(megaco_test_deliver).
%%----------------------------------------------------------------------
%% Include files
%%----------------------------------------------------------------------
-include_lib("megaco/src/udp/megaco_udp.hrl").
-include("megaco_test_lib.hrl").
%%----------------------------------------------------------------------
%% External exports
%%----------------------------------------------------------------------
-export([
process_received_message/4, process_received_message/5,
receive_message/4, receive_message/5
]).
%%======================================================================
%% External functions
%%======================================================================
process_received_message(ReceiveHandle, ControlPid, SendHandle, BinMsg) ->
i("process_received_message -> entry with"
"~n ReceiveHandle: ~p"
"~n ControlPid: ~p"
"~n SendHandle: ~p",
[ReceiveHandle, ControlPid, SendHandle]),
case allow_recv_message() of
true ->
i("process_received_message -> allowed recv msg"),
case extra_transport_info() of
{value, Extra} ->
i("process_received_message -> extra_transport_info: "
"~n Extra: ~p", [Extra]),
megaco:process_received_message(ReceiveHandle, ControlPid,
SendHandle, BinMsg,
Extra);
_ ->
i("process_received_message -> no extra_transport_info"),
megaco:process_received_message(ReceiveHandle, ControlPid,
SendHandle, BinMsg)
end;
false ->
i("process_received_message -> recv msg not allowed"),
ok;
{false, Reason} ->
i("process_received_message -> recv msg not allowed"
"~n Reason: ~p", [Reason]),
exit(Reason)
end.
process_received_message(ReceiveHandle, ControlPid, SendHandle, BinMsg, Extra) ->
i("process_received_message -> entry with"
"~n ReceiveHandle: ~p"
"~n ControlPid: ~p"
"~n SendHandle: ~p"
"~n Extra: ~p",
[ReceiveHandle, ControlPid, SendHandle, Extra]),
case allow_recv_message() of
true ->
i("process_received_message -> allowed recv msg"),
megaco:process_received_message(ReceiveHandle, ControlPid,
SendHandle, BinMsg,
Extra);
false ->
i("process_received_message -> recv msg not allowed"),
ok;
{false, Reason} ->
i("process_received_message -> recv msg not allowed"
"~n Reason: ~p", [Reason]),
exit(Reason)
end.
receive_message(ReceiveHandle, ControlPid, SendHandle, BinMsg) ->
i("receive_message -> entry with"
"~n ReceiveHandle: ~p"
"~n ControlPid: ~p"
"~n SendHandle: ~p",
[ReceiveHandle, ControlPid, SendHandle]),
case allow_recv_message() of
true ->
i("receive_message -> allowed recv msg"),
case extra_transport_info() of
{value, Extra} ->
i("receive_message -> extra_transport_info: "
"~n Extra: ~p", [Extra]),
megaco:receive_message(ReceiveHandle, ControlPid,
SendHandle, BinMsg, Extra);
_ ->
i("receive_message -> no extra_transport_info"),
megaco:receive_message(ReceiveHandle, ControlPid,
SendHandle, BinMsg)
end;
false ->
i("receive_message -> recv msg not allowed"),
ok;
{false, Reason} ->
i("receive_message -> recv msg not allowed"
"~n Reason: ~p", [Reason]),
exit(Reason)
end.
receive_message(ReceiveHandle, ControlPid, SendHandle, BinMsg, Extra) ->
i("receive_message -> entry with"
"~n ReceiveHandle: ~p"
"~n ControlPid: ~p"
"~n SendHandle: ~p"
"~n Extra: ~p",
[ReceiveHandle, ControlPid, SendHandle, Extra]),
case allow_recv_message() of
true ->
i("receive_message -> allowed recv msg"),
megaco:receive_message(ReceiveHandle, ControlPid,
SendHandle, BinMsg,
Extra);
false ->
i("receive_message -> recv msg not allowed"),
ok;
{false, Reason} ->
i("receive_message -> recv msg not allowed"
"~n Reason: ~p", [Reason]),
exit(Reason)
end.
%%======================================================================
%% Internal functions
%%======================================================================
allow_recv_message() ->
case megaco_tc_controller:lookup(allow_recv_message) of
{error, _} ->
true;
{value, Else} ->
Else;
false ->
true
end.
extra_transport_info() ->
case megaco_tc_controller:lookup(extra_transport_info) of
{error, _} ->
false;
Else ->
Else
end.
i(F) ->
i(F, []).
i(F, A) ->
io:format("~p ~w:" ++ F ++ "~n", [self(), ?MODULE | A]).
