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|
-module(gleam@http@cookie).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function]).
-export([defaults/1, set_header/3, parse/1]).
-export_type([same_site_policy/0, attributes/0]).
-type same_site_policy() :: lax | strict | none.
-type attributes() :: {attributes,
gleam@option:option(integer()),
gleam@option:option(binary()),
gleam@option:option(binary()),
boolean(),
boolean(),
gleam@option:option(same_site_policy())}.
-spec same_site_to_string(same_site_policy()) -> binary().
same_site_to_string(Policy) ->
case Policy of
lax ->
<<"Lax"/utf8>>;
strict ->
<<"Strict"/utf8>>;
none ->
<<"None"/utf8>>
end.
-spec defaults(gleam@http:scheme()) -> attributes().
defaults(Scheme) ->
{attributes,
none,
none,
{some, <<"/"/utf8>>},
Scheme =:= https,
true,
{some, lax}}.
-spec cookie_attributes_to_list(attributes()) -> list(list(binary())).
cookie_attributes_to_list(Attributes) ->
{attributes, Max_age, Domain, Path, Secure, Http_only, Same_site} = Attributes,
_pipe = [case Max_age of
{some, 0} ->
{some, [<<"Expires=Thu, 01 Jan 1970 00:00:00 GMT"/utf8>>]};
_ ->
none
end, gleam@option:map(
Max_age,
fun(Max_age@1) ->
[<<"Max-Age="/utf8>>, gleam@int:to_string(Max_age@1)]
end
), gleam@option:map(
Domain,
fun(Domain@1) -> [<<"Domain="/utf8>>, Domain@1] end
), gleam@option:map(Path, fun(Path@1) -> [<<"Path="/utf8>>, Path@1] end), case Secure of
true ->
{some, [<<"Secure"/utf8>>]};
false ->
none
end, case Http_only of
true ->
{some, [<<"HttpOnly"/utf8>>]};
false ->
none
end, gleam@option:map(
Same_site,
fun(Same_site@1) ->
[<<"SameSite="/utf8>>, same_site_to_string(Same_site@1)]
end
)],
gleam@list:filter_map(
_pipe,
fun(_capture) -> gleam@option:to_result(_capture, nil) end
).
-spec set_header(binary(), binary(), attributes()) -> binary().
set_header(Name, Value, Attributes) ->
_pipe = [[Name, <<"="/utf8>>, Value] |
cookie_attributes_to_list(Attributes)],
_pipe@1 = gleam@list:map(
_pipe,
fun(_capture) -> gleam@string:join(_capture, <<""/utf8>>) end
),
gleam@string:join(_pipe@1, <<"; "/utf8>>).
-spec check_token(binary()) -> {ok, nil} | {error, nil}.
check_token(Token) ->
case gleam@string:pop_grapheme(Token) of
{error, nil} ->
{ok, nil};
{ok, {<<" "/utf8>>, _}} ->
{error, nil};
{ok, {<<"\t"/utf8>>, _}} ->
{error, nil};
{ok, {<<"\r"/utf8>>, _}} ->
{error, nil};
{ok, {<<"\n"/utf8>>, _}} ->
{error, nil};
{ok, {<<"\f"/utf8>>, _}} ->
{error, nil};
{ok, {_, Rest}} ->
check_token(Rest)
end.
-spec parse(binary()) -> list({binary(), binary()}).
parse(Cookie_string) ->
_assert_subject = gleam@regex:from_string(<<"[,;]"/utf8>>),
{ok, Re} = case _assert_subject of
{ok, _} -> _assert_subject;
_assert_fail ->
erlang:error(#{gleam_error => let_assert,
message => <<"Assertion pattern match failed"/utf8>>,
value => _assert_fail,
module => <<"gleam/http/cookie"/utf8>>,
function => <<"parse"/utf8>>,
line => 101})
end,
_pipe = gleam@regex:split(Re, Cookie_string),
gleam@list:filter_map(
_pipe,
fun(Pair) ->
case gleam@string:split_once(gleam@string:trim(Pair), <<"="/utf8>>) of
{ok, {<<""/utf8>>, _}} ->
{error, nil};
{ok, {Key, Value}} ->
Key@1 = gleam@string:trim(Key),
Value@1 = gleam@string:trim(Value),
gleam@result:then(
check_token(Key@1),
fun(_) ->
gleam@result:then(
check_token(Value@1),
fun(_) -> {ok, {Key@1, Value@1}} end
)
end
);
{error, nil} ->
{error, nil}
end
end
).
|
