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Update the multipart reading interface

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Now named read_part/read_part_body, with a verb indicating action.
This commit is contained in:
Loïc Hoguin 2016-08-10 15:09:04 +02:00
parent ae95e87eb1
commit aa6f2ab5a4
5 changed files with 38 additions and 36 deletions
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50
src/cowboy_req.erl
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@ -50,10 +50,10 @@
-export([read_urlencoded_body/2]).
%% Multipart.
-export([part/1]). %% @todo read_part?
-export([part/2]). %% @todo read_part?
-export([part_body/1]). %% @todo read_part_body?
-export([part_body/2]). %% @todo read_part_body?
-export([read_part/1]).
-export([read_part/2]).
-export([read_part_body/1]).
-export([read_part_body/2]).
%% Response.
-export([set_resp_cookie/3]).
@ -71,7 +71,9 @@
-export([reply/4]).
-export([stream_reply/2]).
-export([stream_reply/3]).
%% @todo stream_reply/2 (nofin)
-export([stream_body/3]).
%% @todo stream_event/2,3
-export([push/3]).
-export([push/4]).
@ -438,32 +440,32 @@ read_urlencoded_body(Req0, Opts) ->
%% Multipart.
-spec part(Req)
-spec read_part(Req)
-> {ok, cow_multipart:headers(), Req} | {done, Req}
when Req::req().
part(Req) ->
part(Req, #{length => 64000, period => 5000}).
read_part(Req) ->
read_part(Req, #{length => 64000, period => 5000}).
-spec part(Req, body_opts())
-spec read_part(Req, body_opts())
-> {ok, cow_multipart:headers(), Req} | {done, Req}
when Req::req().
part(Req, Opts) ->
read_part(Req, Opts) ->
case maps:is_key(multipart, Req) of
true ->
{Data, Req2} = stream_multipart(Req, Opts),
part(Data, Opts, Req2);
read_part(Data, Opts, Req2);
false ->
part(init_multipart(Req), Opts)
read_part(init_multipart(Req), Opts)
end.
part(Buffer, Opts, Req=#{multipart := {Boundary, _}}) ->
read_part(Buffer, Opts, Req=#{multipart := {Boundary, _}}) ->
case cow_multipart:parse_headers(Buffer, Boundary) of
more ->
{Data, Req2} = stream_multipart(Req, Opts),
part(<< Buffer/binary, Data/binary >>, Opts, Req2);
read_part(<< Buffer/binary, Data/binary >>, Opts, Req2);
{more, Buffer2} ->
{Data, Req2} = stream_multipart(Req, Opts),
part(<< Buffer2/binary, Data/binary >>, Opts, Req2);
read_part(<< Buffer2/binary, Data/binary >>, Opts, Req2);
{ok, Headers, Rest} ->
%% @todo We may want headers as a map. Need to check the
%% rules for multipart header parsing before taking a decision.
@ -473,24 +475,24 @@ part(Buffer, Opts, Req=#{multipart := {Boundary, _}}) ->
{done, Req#{multipart => done}}
end.
-spec part_body(Req)
-spec read_part_body(Req)
-> {ok, binary(), Req} | {more, binary(), Req}
when Req::req().
part_body(Req) ->
part_body(Req, #{}).
read_part_body(Req) ->
read_part_body(Req, #{}).
-spec part_body(Req, body_opts())
-spec read_part_body(Req, body_opts())
-> {ok, binary(), Req} | {more, binary(), Req}
when Req::req().
part_body(Req, Opts) ->
read_part_body(Req, Opts) ->
case maps:is_key(multipart, Req) of
true ->
part_body(<<>>, Opts, Req, <<>>);
read_part_body(<<>>, Opts, Req, <<>>);
false ->
part_body(init_multipart(Req), Opts)
read_part_body(init_multipart(Req), Opts)
end.
part_body(Buffer, Opts, Req=#{multipart := {Boundary, _}}, Acc) ->
read_part_body(Buffer, Opts, Req=#{multipart := {Boundary, _}}, Acc) ->
Length = maps:get(length, Opts, 8000000),
case byte_size(Acc) > Length of
true ->
@ -499,9 +501,9 @@ part_body(Buffer, Opts, Req=#{multipart := {Boundary, _}}, Acc) ->
{Data, Req2} = stream_multipart(Req, Opts),
case cow_multipart:parse_body(<< Buffer/binary, Data/binary >>, Boundary) of
{ok, Body} ->
part_body(<<>>, Opts, Req2, << Acc/binary, Body/binary >>);
read_part_body(<<>>, Opts, Req2, << Acc/binary, Body/binary >>);
{ok, Body, Rest} ->
part_body(Rest, Opts, Req2, << Acc/binary, Body/binary >>);
read_part_body(Rest, Opts, Req2, << Acc/binary, Body/binary >>);
done ->
{ok, Acc, Req2};
{done, Body} ->