Improve URLs validation
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parent
b094ce8ea5
commit
66591b1c0d
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@ -1220,9 +1220,7 @@ opt_type(acme) ->
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fun(L) ->
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lists:map(
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fun({ca_url, URL}) ->
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URL1 = binary_to_list(URL),
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{ok, _} = http_uri:parse(URL1),
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{ca_url, URL1};
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{ca_url, misc:try_url(URL)};
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({contact, Contact}) ->
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[<<_, _/binary>>, <<_, _/binary>>] =
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binary:split(Contact, <<":">>),
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21
src/misc.erl
21
src/misc.erl
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@ -35,7 +35,7 @@
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now_to_usec/1, usec_to_now/1, encode_pid/1, decode_pid/2,
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compile_exprs/2, join_atoms/2, try_read_file/1, get_descr/2,
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css_dir/0, img_dir/0, js_dir/0, msgs_dir/0, sql_dir/0,
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read_css/1, read_img/1, read_js/1]).
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read_css/1, read_img/1, read_js/1, try_url/1]).
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%% Deprecated functions
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-export([decode_base64/1, encode_base64/1]).
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@ -219,6 +219,25 @@ try_read_file(Path) ->
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erlang:error(badarg)
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end.
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%% @doc Checks if the URL is valid HTTP(S) URL and converts its name to binary.
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%% Fails with `badarg` otherwise. The function is intended for usage
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%% in configuration validators only.
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-spec try_url(binary() | string()) -> binary().
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try_url(URL) ->
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case http_uri:parse(URL) of
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{ok, {Scheme, _, _, _, _, _}} when Scheme /= http, Scheme /= https ->
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?ERROR_MSG("Unsupported URI scheme: ~s", [URL]),
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erlang:error(badarg);
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{ok, {_, _, Host, _, _, _}} when Host == ""; Host == <<"">> ->
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?ERROR_MSG("Invalid URL: ~s", [URL]),
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erlang:error(badarg);
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{ok, _} ->
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iolist_to_binary(URL);
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{error, _} ->
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?ERROR_MSG("Invalid URL: ~s", [URL]),
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erlang:error(badarg)
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end.
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-spec css_dir() -> file:filename().
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css_dir() ->
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get_dir("css").
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@ -178,18 +178,14 @@ mod_opt_type(dir_mode) ->
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mod_opt_type(docroot) ->
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fun iolist_to_binary/1;
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mod_opt_type(put_url) ->
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fun(<<"http://", _/binary>> = URL) -> URL;
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(<<"https://", _/binary>> = URL) -> URL
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end;
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fun misc:try_url/1;
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mod_opt_type(get_url) ->
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fun(<<"http://", _/binary>> = URL) -> URL;
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(<<"https://", _/binary>> = URL) -> URL;
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(undefined) -> undefined
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fun(undefined) -> undefined;
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(URL) -> misc:try_url(URL)
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end;
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mod_opt_type(service_url) ->
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fun(<<"http://", _/binary>> = URL) -> URL;
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(<<"https://", _/binary>> = URL) -> URL;
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(undefined) -> undefined
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fun(undefined) -> undefined;
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(URL) -> misc:try_url(URL)
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end;
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mod_opt_type(custom_headers) ->
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fun(Headers) ->
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@ -616,7 +616,9 @@ mod_opt_type({welcome_message, subject}) ->
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mod_opt_type({welcome_message, body}) ->
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fun iolist_to_binary/1;
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mod_opt_type(redirect_url) ->
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fun iolist_to_binary/1.
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fun(<<>>) -> <<>>;
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(URL) -> misc:try_url(URL)
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end.
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mod_options(_Host) ->
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[{access, all},
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