|
@@ -13,31 +13,6 @@
|
|
|
%% ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
|
%% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
|
|
|
|
-%% @doc HTTP request manipulation API.
|
|
|
-%%
|
|
|
-%% The functions in this module try to follow this pattern for their
|
|
|
-%% return types:
|
|
|
-%% <dl>
|
|
|
-%% <dt>access:</dt>
|
|
|
-%% <dd><em>{Value, Req}</em></dd>
|
|
|
-%% <dt>action:</dt>
|
|
|
-%% <dd><em>{Result, Req} | {Result, Value, Req} | {error, atom()}</em></dd>
|
|
|
-%% <dt>modification:</dt>
|
|
|
-%% <dd><em>Req</em></dd>
|
|
|
-%% <dt>question (<em>has_*</em> or <em>is_*</em>):</dt>
|
|
|
-%% <dd><em>boolean()</em></dd>
|
|
|
-%% </dl>
|
|
|
-%%
|
|
|
-%% Exceptions include <em>chunk/2</em> which always returns <em>'ok'</em>,
|
|
|
-%% and <em>to_list/1</em> which returns a list of key/values.
|
|
|
-%%
|
|
|
-%% Also note that all body reading functions perform actions, as Cowboy
|
|
|
-%% doesn't read the request body until they are called.
|
|
|
-%%
|
|
|
-%% Whenever <em>Req</em> is returned, it should always be kept in place of
|
|
|
-%% the one given as argument in your function call, because it keeps
|
|
|
-%% track of the request and response state. Doing so allows Cowboy to do
|
|
|
-%% some lazy evaluation and cache results when possible.
|
|
|
-module(cowboy_req).
|
|
|
|
|
|
%% Request API.
|
|
@@ -184,13 +159,6 @@
|
|
|
|
|
|
%% Request API.
|
|
|
|
|
|
-%% @doc Create a new HTTP Req object.
|
|
|
-%%
|
|
|
-%% This function takes care of setting the owner's pid to self().
|
|
|
-%% @private
|
|
|
-%%
|
|
|
-%% Since we always need to parse the Connection header, we do it
|
|
|
-%% in an optimized way and add the parsed value to p_headers' cache.
|
|
|
-spec new(any(), module(),
|
|
|
undefined | {inet:ip_address(), inet:port_number()},
|
|
|
binary(), binary(), binary(),
|
|
@@ -220,65 +188,51 @@ new(Socket, Transport, Peer, Method, Path, Query,
|
|
|
end
|
|
|
end.
|
|
|
|
|
|
-%% @doc Return the HTTP method of the request.
|
|
|
-spec method(Req) -> {binary(), Req} when Req::req().
|
|
|
method(Req) ->
|
|
|
{Req#http_req.method, Req}.
|
|
|
|
|
|
-%% @doc Return the HTTP version used for the request.
|
|
|
-spec version(Req) -> {cowboy:http_version(), Req} when Req::req().
|
|
|
version(Req) ->
|
|
|
{Req#http_req.version, Req}.
|
|
|
|
|
|
-%% @doc Return the peer address and port number of the remote host.
|
|
|
-spec peer(Req)
|
|
|
-> {{inet:ip_address(), inet:port_number()}, Req}
|
|
|
when Req::req().
|
|
|
peer(Req) ->
|
|
|
{Req#http_req.peer, Req}.
|
|
|
|
|
|
-%% @doc Return the host binary string.
|
|
|
-spec host(Req) -> {binary(), Req} when Req::req().
|
|
|
host(Req) ->
|
|
|
{Req#http_req.host, Req}.
|
|
|
|
|
|
-%% @doc Return the extra host information obtained from partially matching
|
|
|
-%% the hostname using <em>'...'</em>.
|
|
|
-spec host_info(Req)
|
|
|
-> {cowboy_router:tokens() | undefined, Req} when Req::req().
|
|
|
host_info(Req) ->
|
|
|
{Req#http_req.host_info, Req}.
|
|
|
|
|
|
-%% @doc Return the port used for this request.
|
|
|
-spec port(Req) -> {inet:port_number(), Req} when Req::req().
|
|
|
port(Req) ->
|
|
|
{Req#http_req.port, Req}.
|
|
|
|
|
|
-%% @doc Return the path binary string.
|
|
|
-spec path(Req) -> {binary(), Req} when Req::req().
|
|
|
path(Req) ->
|
|
|
{Req#http_req.path, Req}.
|
|
|
|
|
|
-%% @doc Return the extra path information obtained from partially matching
|
|
|
-%% the patch using <em>'...'</em>.
|
|
|
-spec path_info(Req)
|
|
|
-> {cowboy_router:tokens() | undefined, Req} when Req::req().
|
|
|
path_info(Req) ->
|
|
|
{Req#http_req.path_info, Req}.
|
|
|
|
|
|
-%% @doc Return the raw query string directly taken from the request.
|
|
|
-spec qs(Req) -> {binary(), Req} when Req::req().
|
|
|
qs(Req) ->
|
|
|
{Req#http_req.qs, Req}.
|
|
|
|
|
|
-%% @equiv qs_val(Name, Req, undefined)
|
|
|
-spec qs_val(binary(), Req)
|
|
|
-> {binary() | true | undefined, Req} when Req::req().
|
|
|
qs_val(Name, Req) when is_binary(Name) ->
|
|
|
qs_val(Name, Req, undefined).
|
|
|
|
|
|
-%% @doc Return the query string value for the given key, or a default if
|
|
|
-%% missing.
|
|
|
-spec qs_val(binary(), Req, Default)
|
|
|
-> {binary() | true | Default, Req} when Req::req(), Default::any().
|
|
|
qs_val(Name, Req=#http_req{qs=RawQs, qs_vals=undefined}, Default)
|
|
@@ -291,7 +245,6 @@ qs_val(Name, Req, Default) ->
|
|
|
false -> {Default, Req}
|
|
|
end.
|
|
|
|
|
|
-%% @doc Return the full list of query string values.
|
|
|
-spec qs_vals(Req) -> {list({binary(), binary() | true}), Req} when Req::req().
|
|
|
qs_vals(Req=#http_req{qs=RawQs, qs_vals=undefined}) ->
|
|
|
QsVals = cow_qs:parse_qs(RawQs),
|
|
@@ -299,10 +252,7 @@ qs_vals(Req=#http_req{qs=RawQs, qs_vals=undefined}) ->
|
|
|
qs_vals(Req=#http_req{qs_vals=QsVals}) ->
|
|
|
{QsVals, Req}.
|
|
|
|
|
|
-%% @doc Return the request URL as a binary without the path and query string.
|
|
|
-%%
|
|
|
%% The URL includes the scheme, host and port only.
|
|
|
-%% @see cowboy_req:url/1
|
|
|
-spec host_url(Req) -> {undefined | binary(), Req} when Req::req().
|
|
|
host_url(Req=#http_req{port=undefined}) ->
|
|
|
{undefined, Req};
|
|
@@ -319,8 +269,6 @@ host_url(Req=#http_req{transport=Transport, host=Host, port=Port}) ->
|
|
|
end,
|
|
|
{<< "http", Secure/binary, "://", Host/binary, PortBin/binary >>, Req}.
|
|
|
|
|
|
-%% @doc Return the full request URL as a binary.
|
|
|
-%%
|
|
|
%% The URL includes the scheme, host, port, path and query string.
|
|
|
-spec url(Req) -> {undefined | binary(), Req} when Req::req().
|
|
|
url(Req=#http_req{}) ->
|
|
@@ -336,13 +284,10 @@ url(HostURL, Req=#http_req{path=Path, qs=QS}) ->
|
|
|
end,
|
|
|
{<< HostURL/binary, Path/binary, QS2/binary >>, Req}.
|
|
|
|
|
|
-%% @equiv binding(Name, Req, undefined)
|
|
|
-spec binding(atom(), Req) -> {any() | undefined, Req} when Req::req().
|
|
|
binding(Name, Req) when is_atom(Name) ->
|
|
|
binding(Name, Req, undefined).
|
|
|
|
|
|
-%% @doc Return the binding value for the given key obtained when matching
|
|
|
-%% the host and path against the dispatch list, or a default if missing.
|
|
|
-spec binding(atom(), Req, Default)
|
|
|
-> {any() | Default, Req} when Req::req(), Default::any().
|
|
|
binding(Name, Req, Default) when is_atom(Name) ->
|
|
@@ -351,18 +296,15 @@ binding(Name, Req, Default) when is_atom(Name) ->
|
|
|
false -> {Default, Req}
|
|
|
end.
|
|
|
|
|
|
-%% @doc Return the full list of binding values.
|
|
|
-spec bindings(Req) -> {[{atom(), any()}], Req} when Req::req().
|
|
|
bindings(Req) ->
|
|
|
{Req#http_req.bindings, Req}.
|
|
|
|
|
|
-%% @equiv header(Name, Req, undefined)
|
|
|
-spec header(binary(), Req)
|
|
|
-> {binary() | undefined, Req} when Req::req().
|
|
|
header(Name, Req) ->
|
|
|
header(Name, Req, undefined).
|
|
|
|
|
|
-%% @doc Return the header value for the given key, or a default if missing.
|
|
|
-spec header(binary(), Req, Default)
|
|
|
-> {binary() | Default, Req} when Req::req(), Default::any().
|
|
|
header(Name, Req, Default) ->
|
|
@@ -371,16 +313,10 @@ header(Name, Req, Default) ->
|
|
|
false -> {Default, Req}
|
|
|
end.
|
|
|
|
|
|
-%% @doc Return the full list of headers.
|
|
|
-spec headers(Req) -> {cowboy:http_headers(), Req} when Req::req().
|
|
|
headers(Req) ->
|
|
|
{Req#http_req.headers, Req}.
|
|
|
|
|
|
-%% @doc Semantically parse headers.
|
|
|
-%%
|
|
|
-%% When the value isn't found, a proper default value for the type
|
|
|
-%% returned is used as a return value.
|
|
|
-%% @see parse_header/3
|
|
|
-spec parse_header(binary(), Req)
|
|
|
-> {ok, any(), Req} | {undefined, binary(), Req}
|
|
|
| {error, badarg} when Req::req().
|
|
@@ -390,14 +326,10 @@ parse_header(Name, Req=#http_req{p_headers=PHeaders}) ->
|
|
|
{Name, Value} -> {ok, Value, Req}
|
|
|
end.
|
|
|
|
|
|
-%% @doc Default values for semantic header parsing.
|
|
|
-spec parse_header_default(binary()) -> any().
|
|
|
parse_header_default(<<"transfer-encoding">>) -> [<<"identity">>];
|
|
|
parse_header_default(_Name) -> undefined.
|
|
|
|
|
|
-%% @doc Semantically parse headers.
|
|
|
-%%
|
|
|
-%% When the header is unknown, the value is returned directly without parsing.
|
|
|
-spec parse_header(binary(), Req, any())
|
|
|
-> {ok, any(), Req} | {undefined, binary(), Req}
|
|
|
| {error, badarg} when Req::req().
|
|
@@ -481,14 +413,11 @@ parse_header(Name, Req=#http_req{p_headers=PHeaders}, Default, Fun) ->
|
|
|
end
|
|
|
end.
|
|
|
|
|
|
-%% @equiv cookie(Name, Req, undefined)
|
|
|
-spec cookie(binary(), Req)
|
|
|
-> {binary() | undefined, Req} when Req::req().
|
|
|
cookie(Name, Req) when is_binary(Name) ->
|
|
|
cookie(Name, Req, undefined).
|
|
|
|
|
|
-%% @doc Return the cookie value for the given key, or a default if
|
|
|
-%% missing.
|
|
|
-spec cookie(binary(), Req, Default)
|
|
|
-> {binary() | Default, Req} when Req::req(), Default::any().
|
|
|
cookie(Name, Req=#http_req{cookies=undefined}, Default) when is_binary(Name) ->
|
|
@@ -504,7 +433,6 @@ cookie(Name, Req, Default) ->
|
|
|
false -> {Default, Req}
|
|
|
end.
|
|
|
|
|
|
-%% @doc Return the full list of cookie values.
|
|
|
-spec cookies(Req) -> {list({binary(), binary()}), Req} when Req::req().
|
|
|
cookies(Req=#http_req{cookies=undefined}) ->
|
|
|
case parse_header(<<"cookie">>, Req) of
|
|
@@ -519,16 +447,10 @@ cookies(Req=#http_req{cookies=undefined}) ->
|
|
|
cookies(Req=#http_req{cookies=Cookies}) ->
|
|
|
{Cookies, Req}.
|
|
|
|
|
|
-%% @equiv meta(Name, Req, undefined)
|
|
|
-spec meta(atom(), Req) -> {any() | undefined, Req} when Req::req().
|
|
|
meta(Name, Req) ->
|
|
|
meta(Name, Req, undefined).
|
|
|
|
|
|
-%% @doc Return metadata information about the request.
|
|
|
-%%
|
|
|
-%% Metadata information varies from one protocol to another. Websockets
|
|
|
-%% would define the protocol version here, while REST would use it to
|
|
|
-%% indicate which media type, language and charset were retained.
|
|
|
-spec meta(atom(), Req, any()) -> {any(), Req} when Req::req().
|
|
|
meta(Name, Req, Default) ->
|
|
|
case lists:keyfind(Name, 1, Req#http_req.meta) of
|
|
@@ -536,18 +458,12 @@ meta(Name, Req, Default) ->
|
|
|
false -> {Default, Req}
|
|
|
end.
|
|
|
|
|
|
-%% @doc Set metadata information.
|
|
|
-%%
|
|
|
-%% You can use this function to attach information about the request.
|
|
|
-%%
|
|
|
-%% If the value already exists it will be overwritten.
|
|
|
-spec set_meta(atom(), any(), Req) -> Req when Req::req().
|
|
|
set_meta(Name, Value, Req=#http_req{meta=Meta}) ->
|
|
|
- Req#http_req{meta=[{Name, Value}|lists:keydelete(Name, 1, Meta)]}.
|
|
|
+ Req#http_req{meta=lists:keystore(Name, 1, Meta, {Name, Value})}.
|
|
|
|
|
|
%% Request Body API.
|
|
|
|
|
|
-%% @doc Return whether the request message has a body.
|
|
|
-spec has_body(req()) -> boolean().
|
|
|
has_body(Req) ->
|
|
|
case lists:keyfind(<<"content-length">>, 1, Req#http_req.headers) of
|
|
@@ -559,8 +475,6 @@ has_body(Req) ->
|
|
|
lists:keymember(<<"transfer-encoding">>, 1, Req#http_req.headers)
|
|
|
end.
|
|
|
|
|
|
-%% @doc Return the request message body length, if known.
|
|
|
-%%
|
|
|
%% The length may not be known if Transfer-Encoding is not identity,
|
|
|
%% and the body hasn't been read at the time of the call.
|
|
|
-spec body_length(Req) -> {undefined | non_neg_integer(), Req} when Req::req().
|
|
@@ -573,12 +487,6 @@ body_length(Req) ->
|
|
|
{undefined, Req2}
|
|
|
end.
|
|
|
|
|
|
-%% @doc Initialize body streaming and set custom decoding functions.
|
|
|
-%%
|
|
|
-%% Calling this function is optional. It should only be used if you
|
|
|
-%% need to override the default behavior of Cowboy. Otherwise you
|
|
|
-%% should call stream_body/{1,2} directly.
|
|
|
-%%
|
|
|
%% Two decodings happen. First a decoding function is applied to the
|
|
|
%% transferred data, and then another is applied to the actual content.
|
|
|
%%
|
|
@@ -587,34 +495,17 @@ body_length(Req) ->
|
|
|
%% also initialized through this function.
|
|
|
%%
|
|
|
%% Content encoding is generally used for compression.
|
|
|
-%%
|
|
|
-%% Standard encodings can be found in cowboy_http.
|
|
|
-spec init_stream(transfer_decode_fun(), any(), content_decode_fun(), Req)
|
|
|
-> {ok, Req} when Req::req().
|
|
|
init_stream(TransferDecode, TransferState, ContentDecode, Req) ->
|
|
|
{ok, Req#http_req{body_state=
|
|
|
{stream, 0, TransferDecode, TransferState, ContentDecode}}}.
|
|
|
|
|
|
-%% @equiv stream_body(1000000, Req)
|
|
|
-spec stream_body(Req) -> {ok, binary(), Req}
|
|
|
| {done, Req} | {error, atom()} when Req::req().
|
|
|
stream_body(Req) ->
|
|
|
stream_body(1000000, Req).
|
|
|
|
|
|
-%% @doc Stream the request's body.
|
|
|
-%%
|
|
|
-%% This is the most low level function to read the request body.
|
|
|
-%%
|
|
|
-%% In most cases, if they weren't defined before using init_stream/4,
|
|
|
-%% this function will guess which transfer and content encodings were
|
|
|
-%% used for building the request body, and configure the decoding
|
|
|
-%% functions that will be used when streaming.
|
|
|
-%%
|
|
|
-%% It then starts streaming the body, returning {ok, Data, Req}
|
|
|
-%% for each streamed part, and {done, Req} when it's finished streaming.
|
|
|
-%%
|
|
|
-%% You can limit the size of the chunks being returned by using the
|
|
|
-%% first argument which is the size in bytes. It defaults to 1000000 bytes.
|
|
|
-spec stream_body(non_neg_integer(), Req) -> {ok, binary(), Req}
|
|
|
| {done, Req} | {error, atom()} when Req::req().
|
|
|
stream_body(MaxLength, Req=#http_req{body_state=waiting, version=Version,
|
|
@@ -710,7 +601,6 @@ transfer_decode_done(Length, Rest, Req=#http_req{
|
|
|
Req#http_req{buffer=Rest, body_state=done,
|
|
|
headers=Headers3, p_headers=PHeaders3}.
|
|
|
|
|
|
-%% @todo Probably needs a Rest.
|
|
|
-spec content_decode(content_decode_fun(), binary(), Req)
|
|
|
-> {ok, binary(), Req} | {error, atom()} when Req::req().
|
|
|
content_decode(ContentDecode, Data, Req) ->
|
|
@@ -719,12 +609,10 @@ content_decode(ContentDecode, Data, Req) ->
|
|
|
{error, Reason} -> {error, Reason}
|
|
|
end.
|
|
|
|
|
|
-%% @equiv body(8000000, Req)
|
|
|
-spec body(Req) -> {ok, binary(), Req} | {error, atom()} when Req::req().
|
|
|
body(Req) ->
|
|
|
body(8000000, Req).
|
|
|
|
|
|
-%% @doc Return the body sent with the request.
|
|
|
-spec body(non_neg_integer() | infinity, Req)
|
|
|
-> {ok, binary(), Req} | {error, atom()} when Req::req().
|
|
|
body(MaxBodyLength, Req) ->
|
|
@@ -760,15 +648,12 @@ skip_body(Req) ->
|
|
|
{error, Reason} -> {error, Reason}
|
|
|
end.
|
|
|
|
|
|
-%% @equiv body_qs(16000, Req)
|
|
|
-spec body_qs(Req)
|
|
|
-> {ok, [{binary(), binary() | true}], Req} | {error, atom()}
|
|
|
when Req::req().
|
|
|
body_qs(Req) ->
|
|
|
body_qs(16000, Req).
|
|
|
|
|
|
-%% @doc Return the body sent with the request, parsed as an
|
|
|
-%% application/x-www-form-urlencoded string.
|
|
|
%% Essentially a POST query string.
|
|
|
-spec body_qs(non_neg_integer() | infinity, Req)
|
|
|
-> {ok, [{binary(), binary() | true}], Req} | {error, atom()}
|
|
@@ -783,7 +668,6 @@ body_qs(MaxBodyLength, Req) ->
|
|
|
|
|
|
%% Multipart API.
|
|
|
|
|
|
-%% @doc Return the next part's headers.
|
|
|
-spec part(Req)
|
|
|
-> {ok, cow_multipart:headers(), Req} | {done, Req}
|
|
|
when Req::req().
|
|
@@ -808,7 +692,6 @@ part(Buffer, Req=#http_req{multipart={Boundary, _}}) ->
|
|
|
{done, Req#http_req{multipart=undefined}}
|
|
|
end.
|
|
|
|
|
|
-%% @doc Return the current part's body.
|
|
|
-spec part_body(Req)
|
|
|
-> {ok, binary(), Req} | {more, binary(), Req}
|
|
|
when Req::req().
|
|
@@ -855,8 +738,6 @@ stream_multipart(Req=#http_req{multipart={Boundary, Buffer}}) ->
|
|
|
|
|
|
%% Response API.
|
|
|
|
|
|
-%% @doc Add a cookie header to the response.
|
|
|
-%%
|
|
|
%% The cookie name cannot contain any of the following characters:
|
|
|
%% =,;\s\t\r\n\013\014
|
|
|
%%
|
|
@@ -868,46 +749,19 @@ set_resp_cookie(Name, Value, Opts, Req) ->
|
|
|
Cookie = cow_cookie:setcookie(Name, Value, Opts),
|
|
|
set_resp_header(<<"set-cookie">>, Cookie, Req).
|
|
|
|
|
|
-%% @doc Add a header to the response.
|
|
|
-spec set_resp_header(binary(), iodata(), Req)
|
|
|
-> Req when Req::req().
|
|
|
set_resp_header(Name, Value, Req=#http_req{resp_headers=RespHeaders}) ->
|
|
|
Req#http_req{resp_headers=[{Name, Value}|RespHeaders]}.
|
|
|
|
|
|
-%% @doc Add a body to the response.
|
|
|
-%%
|
|
|
-%% The body set here is ignored if the response is later sent using
|
|
|
-%% anything other than reply/2 or reply/3. The response body is expected
|
|
|
-%% to be a binary or an iolist.
|
|
|
-spec set_resp_body(iodata(), Req) -> Req when Req::req().
|
|
|
set_resp_body(Body, Req) ->
|
|
|
Req#http_req{resp_body=Body}.
|
|
|
|
|
|
-%% @doc Add a body stream function to the response.
|
|
|
-%%
|
|
|
-%% The body set here is ignored if the response is later sent using
|
|
|
-%% anything other than reply/2 or reply/3.
|
|
|
-%%
|
|
|
-%% Setting a response stream function without a length means that the
|
|
|
-%% body will be sent until the connection is closed. Cowboy will make
|
|
|
-%% sure that the connection is closed with no extra step required.
|
|
|
-%%
|
|
|
-%% To inform the client that a body has been sent with this request,
|
|
|
-%% Cowboy will add a "Transfer-Encoding: identity" header to the
|
|
|
-%% response.
|
|
|
-spec set_resp_body_fun(resp_body_fun(), Req) -> Req when Req::req().
|
|
|
set_resp_body_fun(StreamFun, Req) when is_function(StreamFun) ->
|
|
|
Req#http_req{resp_body=StreamFun}.
|
|
|
|
|
|
-%% @doc Add a body function to the response.
|
|
|
-%%
|
|
|
-%% The body set here is ignored if the response is later sent using
|
|
|
-%% anything other than reply/2 or reply/3.
|
|
|
-%%
|
|
|
-%% Cowboy will call the given response stream function after sending the
|
|
|
-%% headers. This function must send the specified number of bytes to the
|
|
|
-%% socket it will receive as argument.
|
|
|
-%%
|
|
|
%% If the body function crashes while writing the response body or writes
|
|
|
%% fewer bytes than declared the behaviour is undefined.
|
|
|
-spec set_resp_body_fun(non_neg_integer(), resp_body_fun(), Req)
|
|
@@ -921,12 +775,10 @@ set_resp_body_fun(chunked, StreamFun, Req)
|
|
|
when is_function(StreamFun) ->
|
|
|
Req#http_req{resp_body={chunked, StreamFun}}.
|
|
|
|
|
|
-%% @doc Return whether the given header has been set for the response.
|
|
|
-spec has_resp_header(binary(), req()) -> boolean().
|
|
|
has_resp_header(Name, #http_req{resp_headers=RespHeaders}) ->
|
|
|
lists:keymember(Name, 1, RespHeaders).
|
|
|
|
|
|
-%% @doc Return whether a body has been set for the response.
|
|
|
-spec has_resp_body(req()) -> boolean().
|
|
|
has_resp_body(#http_req{resp_body=RespBody}) when is_function(RespBody) ->
|
|
|
true;
|
|
@@ -937,25 +789,21 @@ has_resp_body(#http_req{resp_body={Length, _}}) ->
|
|
|
has_resp_body(#http_req{resp_body=RespBody}) ->
|
|
|
iolist_size(RespBody) > 0.
|
|
|
|
|
|
-%% @doc Remove a header previously set for the response.
|
|
|
-spec delete_resp_header(binary(), Req)
|
|
|
-> Req when Req::req().
|
|
|
delete_resp_header(Name, Req=#http_req{resp_headers=RespHeaders}) ->
|
|
|
RespHeaders2 = lists:keydelete(Name, 1, RespHeaders),
|
|
|
Req#http_req{resp_headers=RespHeaders2}.
|
|
|
|
|
|
-%% @equiv reply(Status, [], [], Req)
|
|
|
-spec reply(cowboy:http_status(), Req) -> {ok, Req} when Req::req().
|
|
|
reply(Status, Req=#http_req{resp_body=Body}) ->
|
|
|
reply(Status, [], Body, Req).
|
|
|
|
|
|
-%% @equiv reply(Status, Headers, [], Req)
|
|
|
-spec reply(cowboy:http_status(), cowboy:http_headers(), Req)
|
|
|
-> {ok, Req} when Req::req().
|
|
|
reply(Status, Headers, Req=#http_req{resp_body=Body}) ->
|
|
|
reply(Status, Headers, Body, Req).
|
|
|
|
|
|
-%% @doc Send a reply to the client.
|
|
|
-spec reply(cowboy:http_status(), cowboy:http_headers(),
|
|
|
iodata() | {non_neg_integer() | resp_body_fun()}, Req)
|
|
|
-> {ok, Req} when Req::req().
|
|
@@ -1083,22 +931,16 @@ reply_no_compress(Status, Headers, Body, Req,
|
|
|
Req),
|
|
|
Req2.
|
|
|
|
|
|
-%% @equiv chunked_reply(Status, [], Req)
|
|
|
-spec chunked_reply(cowboy:http_status(), Req) -> {ok, Req} when Req::req().
|
|
|
chunked_reply(Status, Req) ->
|
|
|
chunked_reply(Status, [], Req).
|
|
|
|
|
|
-%% @doc Initiate the sending of a chunked reply to the client.
|
|
|
-%% @see cowboy_req:chunk/2
|
|
|
-spec chunked_reply(cowboy:http_status(), cowboy:http_headers(), Req)
|
|
|
-> {ok, Req} when Req::req().
|
|
|
chunked_reply(Status, Headers, Req) ->
|
|
|
{_, Req2} = chunked_response(Status, Headers, Req),
|
|
|
{ok, Req2}.
|
|
|
|
|
|
-%% @doc Send a chunk of data.
|
|
|
-%%
|
|
|
-%% A chunked reply must have been initiated before calling this function.
|
|
|
-spec chunk(iodata(), req()) -> ok | {error, atom()}.
|
|
|
chunk(_Data, #http_req{method= <<"HEAD">>}) ->
|
|
|
ok;
|
|
@@ -1113,8 +955,7 @@ chunk(Data, #http_req{socket=Socket, transport=Transport,
|
|
|
Transport:send(Socket, [integer_to_list(iolist_size(Data), 16),
|
|
|
<<"\r\n">>, Data, <<"\r\n">>]).
|
|
|
|
|
|
-%% @doc Finish the chunked reply.
|
|
|
-%% @todo If ever made public, need to send nothing if HEAD.
|
|
|
+%% If ever made public, need to send nothing if HEAD.
|
|
|
-spec last_chunk(Req) -> Req when Req::req().
|
|
|
last_chunk(Req=#http_req{socket=Socket, transport=cowboy_spdy}) ->
|
|
|
_ = cowboy_spdy:stream_close(Socket),
|
|
@@ -1123,8 +964,6 @@ last_chunk(Req=#http_req{socket=Socket, transport=Transport}) ->
|
|
|
_ = Transport:send(Socket, <<"0\r\n\r\n">>),
|
|
|
Req#http_req{resp_state=done}.
|
|
|
|
|
|
-%% @doc Send an upgrade reply.
|
|
|
-%% @private
|
|
|
-spec upgrade_reply(cowboy:http_status(), cowboy:http_headers(), Req)
|
|
|
-> {ok, Req} when Req::req().
|
|
|
upgrade_reply(Status, Headers, Req=#http_req{transport=Transport,
|
|
@@ -1135,10 +974,7 @@ upgrade_reply(Status, Headers, Req=#http_req{transport=Transport,
|
|
|
], <<>>, Req),
|
|
|
{ok, Req2#http_req{resp_state=done, resp_headers=[], resp_body= <<>>}}.
|
|
|
|
|
|
-%% @doc Send a reply if one hasn't been sent already.
|
|
|
-%%
|
|
|
%% Meant to be used internally for sending errors after crashes.
|
|
|
-%% @private
|
|
|
-spec maybe_reply(cowboy:http_status(), req()) -> ok.
|
|
|
maybe_reply(Status, Req) ->
|
|
|
receive
|
|
@@ -1148,8 +984,6 @@ maybe_reply(Status, Req) ->
|
|
|
ok
|
|
|
end.
|
|
|
|
|
|
-%% @doc Ensure the response has been sent fully.
|
|
|
-%% @private
|
|
|
-spec ensure_response(req(), cowboy:http_status()) -> ok.
|
|
|
%% The response has already been fully sent to the client.
|
|
|
ensure_response(#http_req{resp_state=done}, _) ->
|
|
@@ -1171,12 +1005,10 @@ ensure_response(#http_req{}, _) ->
|
|
|
|
|
|
%% Private setter/getter API.
|
|
|
|
|
|
-%% @private
|
|
|
-spec append_buffer(binary(), Req) -> Req when Req::req().
|
|
|
append_buffer(Suffix, Req=#http_req{buffer=Buffer}) ->
|
|
|
Req#http_req{buffer= << Buffer/binary, Suffix/binary >>}.
|
|
|
|
|
|
-%% @private
|
|
|
-spec get(atom(), req()) -> any(); ([atom()], req()) -> any().
|
|
|
get(List, Req) when is_list(List) ->
|
|
|
[g(Atom, Req) || Atom <- List];
|
|
@@ -1211,7 +1043,6 @@ g(socket, #http_req{socket=Ret}) -> Ret;
|
|
|
g(transport, #http_req{transport=Ret}) -> Ret;
|
|
|
g(version, #http_req{version=Ret}) -> Ret.
|
|
|
|
|
|
-%% @private
|
|
|
-spec set([{atom(), any()}], Req) -> Req when Req::req().
|
|
|
set([], Req) -> Req;
|
|
|
set([{bindings, Val}|Tail], Req) -> set(Tail, Req#http_req{bindings=Val});
|
|
@@ -1241,7 +1072,6 @@ set([{socket, Val}|Tail], Req) -> set(Tail, Req#http_req{socket=Val});
|
|
|
set([{transport, Val}|Tail], Req) -> set(Tail, Req#http_req{transport=Val});
|
|
|
set([{version, Val}|Tail], Req) -> set(Tail, Req#http_req{version=Val}).
|
|
|
|
|
|
-%% @private
|
|
|
-spec set_bindings(cowboy_router:tokens(), cowboy_router:tokens(),
|
|
|
cowboy_router:bindings(), Req) -> Req when Req::req().
|
|
|
set_bindings(HostInfo, PathInfo, Bindings, Req) ->
|
|
@@ -1250,13 +1080,6 @@ set_bindings(HostInfo, PathInfo, Bindings, Req) ->
|
|
|
|
|
|
%% Misc API.
|
|
|
|
|
|
-%% @doc Compact the request data by removing all non-system information.
|
|
|
-%%
|
|
|
-%% This essentially removes the host and path info, query string, bindings,
|
|
|
-%% headers and cookies.
|
|
|
-%%
|
|
|
-%% Use it when you really need to save up memory, for example when having
|
|
|
-%% many concurrent long-running connections.
|
|
|
-spec compact(Req) -> Req when Req::req().
|
|
|
compact(Req) ->
|
|
|
Req#http_req{host_info=undefined,
|
|
@@ -1264,13 +1087,10 @@ compact(Req) ->
|
|
|
bindings=undefined, headers=[],
|
|
|
p_headers=[], cookies=[]}.
|
|
|
|
|
|
-%% @doc Prevent any further responses.
|
|
|
-%% @private
|
|
|
-spec lock(Req) -> Req when Req::req().
|
|
|
lock(Req) ->
|
|
|
Req#http_req{resp_state=locked}.
|
|
|
|
|
|
-%% @doc Convert the Req object to a list of key/values.
|
|
|
-spec to_list(req()) -> [{atom(), any()}].
|
|
|
to_list(Req) ->
|
|
|
lists:zip(record_info(fields, http_req), tl(tuple_to_list(Req))).
|
|
@@ -1405,9 +1225,6 @@ atom_to_connection(keepalive) ->
|
|
|
atom_to_connection(close) ->
|
|
|
<<"close">>.
|
|
|
|
|
|
-%% @doc Walk through a tokens list and return whether
|
|
|
-%% the connection is keepalive or closed.
|
|
|
-%%
|
|
|
%% We don't match on "keep-alive" since it is the default value.
|
|
|
-spec connection_to_atom([binary()]) -> keepalive | close.
|
|
|
connection_to_atom([]) ->
|
|
@@ -1480,7 +1297,6 @@ status(B) when is_binary(B) -> B.
|
|
|
%% Tests.
|
|
|
|
|
|
-ifdef(TEST).
|
|
|
-
|
|
|
url_test() ->
|
|
|
{undefined, _} =
|
|
|
url(#http_req{transport=ranch_tcp, host= <<>>, port= undefined,
|
|
@@ -1509,7 +1325,6 @@ url_test() ->
|
|
|
ok.
|
|
|
|
|
|
connection_to_atom_test_() ->
|
|
|
- %% {Tokens, Result}
|
|
|
Tests = [
|
|
|
{[<<"close">>], close},
|
|
|
{[<<"keep-alive">>], keepalive},
|
|
@@ -1533,5 +1348,4 @@ merge_headers_test_() ->
|
|
|
{<<"server">>,<<"Cowboy">>}]}
|
|
|
],
|
|
|
[fun() -> Res = merge_headers(L,R) end || {L, R, Res} <- Tests].
|
|
|
-
|
|
|
-endif.
|