commit e87ac6cf2e9f4ae62944f7858ca3d6d32bdf4f9b Author: Maciej Szlosarczyk Date: Wed May 22 10:57:05 2019 +0300 Initial commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..f1c4554 --- /dev/null +++ b/.gitignore @@ -0,0 +1,19 @@ +.rebar3 +_* +.eunit +*.o +*.beam +*.plt +*.swp +*.swo +.erlang.cookie +ebin +log +erl_crash.dump +.rebar +logs +_build +.idea +*.iml +rebar3.crashdump +*~ diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..f262c7f --- /dev/null +++ b/LICENSE @@ -0,0 +1,191 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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+ diff --git a/README.md b/README.md new file mode 100644 index 0000000..b19d31b --- /dev/null +++ b/README.md @@ -0,0 +1,9 @@ +epp_proxy +===== + +An OTP application + +Build +----- + + $ rebar3 compile diff --git a/apps/epp_proxy/src/epp_proxy.app.src b/apps/epp_proxy/src/epp_proxy.app.src new file mode 100644 index 0000000..566fab7 --- /dev/null +++ b/apps/epp_proxy/src/epp_proxy.app.src @@ -0,0 +1,15 @@ +{application, epp_proxy, + [{description, "An OTP application"}, + {vsn, "0.1.0"}, + {registered, []}, + {mod, {epp_proxy_app, []}}, + {applications, + [kernel, + stdlib + ]}, + {env,[]}, + {modules, []}, + + {licenses, ["Apache 2.0"]}, + {links, []} + ]}. diff --git a/apps/epp_proxy/src/epp_proxy_app.erl b/apps/epp_proxy/src/epp_proxy_app.erl new file mode 100644 index 0000000..6c07e47 --- /dev/null +++ b/apps/epp_proxy/src/epp_proxy_app.erl @@ -0,0 +1,26 @@ +%%%------------------------------------------------------------------- +%% @doc epp_proxy public API +%% @end +%%%------------------------------------------------------------------- + +-module(epp_proxy_app). + +-behaviour(application). + +%% Application callbacks +-export([start/2, stop/1]). + +%%==================================================================== +%% API +%%==================================================================== + +start(_StartType, _StartArgs) -> + epp_proxy_sup:start_link(). + +%%-------------------------------------------------------------------- +stop(_State) -> + ok. + +%%==================================================================== +%% Internal functions +%%==================================================================== diff --git a/apps/epp_proxy/src/epp_proxy_sup.erl b/apps/epp_proxy/src/epp_proxy_sup.erl new file mode 100644 index 0000000..d486d3c --- /dev/null +++ b/apps/epp_proxy/src/epp_proxy_sup.erl @@ -0,0 +1,43 @@ +%%%------------------------------------------------------------------- +%% @doc epp_proxy top level supervisor. +%% @end +%%%------------------------------------------------------------------- + +-module(epp_proxy_sup). + +-behaviour(supervisor). + +%% API +-export([start_link/0]). + +%% Supervisor callbacks +-export([init/1]). + +-define(SERVER, ?MODULE). + +%%==================================================================== +%% API functions +%%==================================================================== + +start_link() -> + supervisor:start_link(epp_proxy_sup, []). + +%%==================================================================== +%% Supervisor callbacks +%%==================================================================== + +%% Child :: #{id => Id, start => {M, F, A}} +%% Optional keys are restart, shutdown, type, modules. +%% Before OTP 18 tuples must be used to specify a child. e.g. +%% Child :: {Id,StartFunc,Restart,Shutdown,Type,Modules} +init(_Args) -> + SupFlags = #{strategy => one_for_one, intensity => 1, period => 5}, + ChildSpecs = [#{id => tls_server, + start => {epp_tls, start_link, [4444]}} + #{id => tcp_server, + start => {epp_tcp, start_link, [3333]}}], + {ok, {SupFlags, ChildSpecs}}. + +%%==================================================================== +%% Internal functions +%%==================================================================== diff --git a/apps/epp_proxy/src/epp_tcp.erl b/apps/epp_proxy/src/epp_tcp.erl new file mode 100644 index 0000000..cc09d67 --- /dev/null +++ b/apps/epp_proxy/src/epp_tcp.erl @@ -0,0 +1,58 @@ +-module(epp_tcp). + +-behaviour(supervisor). + +-export([start_link/1, init/1]). + +-export([serve/1]). + +start_link(Port) -> + supervisor:start_link({local, ?MODULE}, ?MODULE, Port). + +init(Port) -> + SupFlags = #{strategy => one_for_one, intensity => 1, period => 5}, + ChildSpecs = [], + accept(Port), + log_message(Port), + {ok, {SupFlags, ChildSpecs}}. + +accept(Port) -> + Options = [binary, + {packet, raw}, + {active, false}, + {reuseaddr, true}], + + {ok, ListenSocket} = gen_tcp:listen(Port, Options), + loop_acceptor(ListenSocket). + +loop_acceptor(ListenSocket) -> + {ok, Client} = gen_tcp:accept(ListenSocket), + Pid = spawn_link(?MODULE, serve, [Client]), + logger:info("PID: ~p", [Pid]), + ok = gen_tcp:controlling_process(Client, Pid), + loop_acceptor(ListenSocket). + +serve(Client) -> + logger:info("Client name ~s", [Client]), + send_greeting(Client), + read_length(Client), + exit(shutdown). + +send_greeting(Client) -> + Greeting = "Foo bar baz", + Length = string:length(Greeting) + 4, + ByteSize = << Length:32/big >>, + write_line(ByteSize, Client), + write_line(Greeting, Client). + +write_line(Line, Client) -> + gen_tcp:send(Client, Line). + +read_length(Client) -> + case gen_tcp:recv(Client, 4) of + {ok, Data} -> logger:info("Received bytes: ~p", [Data]); + {error, Error} -> logger:info("Received bytes: ~p", [Error]) + end. + +log_message(Port) -> + logger:info("TCP listening on Port: ~p", [Port]). diff --git a/apps/epp_proxy/src/epp_tls.erl b/apps/epp_proxy/src/epp_tls.erl new file mode 100644 index 0000000..f1fcf4a --- /dev/null +++ b/apps/epp_proxy/src/epp_tls.erl @@ -0,0 +1,45 @@ +-module(epp_tls). + +-behaviour(supervisor). +-export([start_link/1, init/1, serve/1]). + +start_link(Port) -> + supervisor:start_link({local, ?MODULE}, ?MODULE, Port). + +init(Port) -> + SupFlags = #{strategy => one_for_one, intensity => 1, period => 5}, + ChildSpecs = [], + accept(Port), + log_message(Port), + {ok, {SupFlags, ChildSpecs}}. + +accept(Port) -> + Options = [binary, + {packet, raw}, + {active, false}, + {reuseaddr, true}, + {verify, verify_peer}, + {depth, 1}, + {cacertfile, "/Users/maciej/Development/internetee/docker-images/shared/ca/certs/ca.crt.pem"}, + {certfile, "/Users/maciej/Development/internetee/docker-images/shared/ca/certs/apache.crt"}, + {keyfile, "/Users/maciej/Development/internetee/docker-images/shared/ca/private/apache.key"}], + + {ok, ListenSocket} = ssl:listen(Port, Options), + loop_acceptor(ListenSocket). + +loop_acceptor(ListenSocket) -> + {ok, Client} = ssl:transport_accept(ListenSocket), + Pid = spawn_link(?MODULE, serve, [Client]), + logger:info("PID: ~p", [Pid]), + ok = ssl:controlling_process(Client, Pid), + loop_acceptor(ListenSocket). + +serve(Client) -> + {ok, TSocket} = ssl:handshake(Client), + {ok, ClientCert} = ssl:peername(TSocket), + logger:info("Client name ~s", [ClientCert]), + timer:sleep(1000), + exit(shutdown). + +log_message(Port) -> + logger:info("SSL Listening on Port: ~p", [Port]). diff --git a/apps/epp_proxy/src/epp_xml.erl b/apps/epp_proxy/src/epp_xml.erl new file mode 100644 index 0000000..3907861 --- /dev/null +++ b/apps/epp_proxy/src/epp_xml.erl @@ -0,0 +1,35 @@ +-module(epp_xml). + +-export([find_cltrid/1, parse/1]). + +-include_lib("xmerl/include/xmerl.hrl"). + +%% xml_erl expects a list of characters, so let's give it to it. +%% Otherwise return an error tuple. +parse(Text) when is_list(Text) -> parse_list(Text); +parse(Text) when is_binary(Text) -> + List = binary_to_list(Text), + parse_list(List); +parse(_) -> {error, {fatal, {expected_binary_or_list}}}. + +%% Parse a record that came from the wire and return a xmlElement record. +parse_list(List) when is_list(List) -> + try xmerl_scan:string(List, [{quiet, 'true'}]) of + {Record, []} when is_record(Record, xmlElement) -> {ok, Record} + catch + exit:X -> {error, X} + end. + +%% The idea is that even when XML command is invalid, +%% we should recover cltrid from it, hence the regex use. +-spec find_cltrid(any()) -> binary() | nomatch. +find_cltrid(Text) when is_list(Text) -> run_regex(Text); +find_cltrid(Text) when is_binary(Text) -> run_regex(Text); +find_cltrid(_) -> nomatch. + +run_regex(Text) -> + {ok, MP} = re:compile("(?.+)<\/clTRID>"), + case re:run(Text, MP, [{capture, ["cltrid"], binary}]) of + {match, [Binary]} -> Binary; + nomatch -> nomatch + end. diff --git a/apps/epp_proxy/test/epp_xml_tests.erl b/apps/epp_proxy/test/epp_xml_tests.erl new file mode 100644 index 0000000..67ab337 --- /dev/null +++ b/apps/epp_proxy/test/epp_xml_tests.erl @@ -0,0 +1,60 @@ +-module(epp_xml_tests). + +-include_lib("eunit/include/eunit.hrl"). +%% This is required for parse tests. +-include_lib("xmerl/include/xmerl.hrl"). + +-define(sampleCommandList, + " + + + test + test + + sample1trid + + "). + +%% parse +parse_not_a_list_or_binary_test() -> + Input = 1234, + ExpectedOutput = {error, {fatal, {expected_binary_or_list}}}, + ?assertEqual(ExpectedOutput, epp_xml:parse(Input)). + +parse_sample_valid_xml_list_test() -> + Input = ?sampleCommandList, + {ok, Record} = epp_xml:parse(Input), + ?assert(is_record(Record, xmlElement)). + +parse_sample_valid_xml_binary_test() -> + Input = list_to_binary(?sampleCommandList), + {ok, Record} = epp_xml:parse(Input), + ?assert(is_record(Record, xmlElement)). + +parse_sample_invalid_xml_list_test() -> + Input = "Some text", + {error, Error} = epp_xml:parse(Input). + +parse_sample_invalid_xml_binary_test() -> + Input = list_to_binary("Some text"), + {error, Error} = epp_xml:parse(Input). + +%% find_cltrid +find_cltrid_empty_list_test() -> + Input = "", + ?assertEqual(nomatch, epp_xml:find_cltrid(Input)). + +find_cltrid_list_test() -> + Input = list_to_binary(?sampleCommandList), + ?assertEqual(<<"sample1trid">>, epp_xml:find_cltrid(Input)). + +find_cltrid_empty_binary_test() -> + Input = <<"">>, + ?assertEqual(nomatch, epp_xml:find_cltrid(Input)). + +find_cltrid_binary_test() -> + Input = ?sampleCommandList, + ?assertEqual(<<"sample1trid">>, epp_xml:find_cltrid(Input)). + + +%% get_command diff --git a/config/sys.config b/config/sys.config new file mode 100644 index 0000000..2a45bab --- /dev/null +++ b/config/sys.config @@ -0,0 +1,3 @@ +[ + {epp_proxy, []} +]. diff --git a/config/vm.args b/config/vm.args new file mode 100644 index 0000000..03aad75 --- /dev/null +++ b/config/vm.args @@ -0,0 +1,6 @@ +-sname epp_proxy + +-setcookie epp_proxy_cookie + ++K true ++A30 diff --git a/rebar.config b/rebar.config new file mode 100644 index 0000000..d92e223 --- /dev/null +++ b/rebar.config @@ -0,0 +1,20 @@ +{erl_opts, [debug_info]}. +{deps, []}. + +{relx, [{release, {epp_proxy, "0.1.0"}, + [epp_proxy, + sasl]}, + + {sys_config, "./config/sys.config"}, + {vm_args, "./config/vm.args"}, + + {dev_mode, true}, + {include_erts, false}, + + {extended_start_script, true}] +}. + +{profiles, [{prod, [{relx, [{dev_mode, false}, + {include_erts, true}]}] + }] +}. diff --git a/rebar.lock b/rebar.lock new file mode 100644 index 0000000..57afcca --- /dev/null +++ b/rebar.lock @@ -0,0 +1 @@ +[].