emqx/apps/emqx_ft/test/emqx_ft_fs_util_tests.erl

87 lines
3.4 KiB
Erlang

%%--------------------------------------------------------------------
%% Copyright (c) 2020-2024 EMQ Technologies Co., Ltd. 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.
%%--------------------------------------------------------------------
-module(emqx_ft_fs_util_tests).
-include_lib("eunit/include/eunit.hrl").
filename_safe_test_() ->
[
?_assertEqual(ok, emqx_ft_fs_util:is_filename_safe("im.safe")),
?_assertEqual(ok, emqx_ft_fs_util:is_filename_safe(<<"im.safe">>)),
?_assertEqual(ok, emqx_ft_fs_util:is_filename_safe(<<".safe.100%">>)),
?_assertEqual(ok, emqx_ft_fs_util:is_filename_safe(<<"safe.as.🦺"/utf8>>))
].
filename_unsafe_test_() ->
[
?_assertEqual({error, empty}, emqx_ft_fs_util:is_filename_safe("")),
?_assertEqual({error, special}, emqx_ft_fs_util:is_filename_safe(".")),
?_assertEqual({error, special}, emqx_ft_fs_util:is_filename_safe("..")),
?_assertEqual({error, special}, emqx_ft_fs_util:is_filename_safe(<<"..">>)),
?_assertEqual({error, unsafe}, emqx_ft_fs_util:is_filename_safe(<<".././..">>)),
?_assertEqual({error, unsafe}, emqx_ft_fs_util:is_filename_safe("/etc/passwd")),
?_assertEqual({error, unsafe}, emqx_ft_fs_util:is_filename_safe("../cookie")),
?_assertEqual({error, unsafe}, emqx_ft_fs_util:is_filename_safe("C:$cookie")),
?_assertEqual({error, nonprintable}, emqx_ft_fs_util:is_filename_safe([1, 2, 3])),
?_assertEqual({error, nonprintable}, emqx_ft_fs_util:is_filename_safe(<<4, 5, 6>>)),
?_assertEqual({error, nonprintable}, emqx_ft_fs_util:is_filename_safe([$a, 16#7F, $z]))
].
-define(NAMES, [
{"just.file", <<"just.file">>},
{".hidden", <<".hidden">>},
{".~what", <<".~what">>},
{"100%25.file", <<"100%.file">>},
{"%2E%2E", <<"..">>},
{"...", <<"...">>},
{"%2Fetc%2Fpasswd", <<"/etc/passwd">>},
{"%01%02%0A ", <<1, 2, 10, 32>>}
]).
escape_filename_test_() ->
[
?_assertEqual(Filename, emqx_ft_fs_util:escape_filename(Input))
|| {Filename, Input} <- ?NAMES
].
unescape_filename_test_() ->
[
?_assertEqual(Input, emqx_ft_fs_util:unescape_filename(Filename))
|| {Filename, Input} <- ?NAMES
].
mk_temp_filename_test_() ->
[
?_assertMatch(
"." ++ Suffix when length(Suffix) == 16,
emqx_ft_fs_util:mk_temp_filename(<<>>)
),
?_assertMatch(
"file.name." ++ Suffix when length(Suffix) == 16,
emqx_ft_fs_util:mk_temp_filename("file.name")
),
?_assertMatch(
"safe.🦺." ++ Suffix when length(Suffix) == 16,
emqx_ft_fs_util:mk_temp_filename(<<"safe.🦺"/utf8>>)
),
?_assertEqual(
% FilenameSlice + Dot + Suffix
200 + 1 + 16,
length(emqx_ft_fs_util:mk_temp_filename(lists:duplicate(63, "LONG")))
)
].