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Nova is a web application framework
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Files
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Files
src/nova_security_handler.erl
-module(nova_security_handler).
-behaviour(cowboy_middleware).
-include_lib("nova/include/nova.hrl").
-export([
execute/2
]).
%%--------------------------------------------------------------------
%% @doc
%% If a security module/func is defined in the route of the request that
%% module/func will be called. If the result of that is false it will
%% return a 401 to the requester. Otherwise it will continue to handle
%% the request.
%% @end
%%--------------------------------------------------------------------
-spec execute(Req, Env) -> {ok, Req, Env} | {stop, Req}
when Req :: cowboy_req:req(),
Env :: cowboy_middleware:env().
execute(Req, Env = #{handler_opts := HandlerOpts = #{secure := {Mod, Func}}}) ->
try Mod:Func(Req) of
{ok, AuthData} ->
{ok, Req, Env#{handler_opts => HandlerOpts#{auth_data => AuthData}}};
true ->
{ok, Req, Env};
false ->
{stop, cowboy_req:reply(401, Req)};
{redirect, Route} ->
Req1 = cowboy_req:reply(
302,
#{<<"Location">> => list_to_binary(Route)},
Req),
{stop, Req1};
{cowboy_req, Req1} ->
{ok, Req1, Env}
catch
Class:Reason ->
?ERROR("Security module ~p:~p failed with ~p/~p", [Mod, Func, Class, Reason]),
{stop, cowboy_req:reply(500, Req)}
end;
execute(Req, Env) ->
{ok, Req, Env}.