forked from ninenines/cowboy
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Use a proper HTTP client to run all tests. This client is currently undocumented and should not be used. Includes a few fixes: * Fix a bug in the max_keepalive test * Fix a bug with max_keepalive handling * Fix a bug in stream_body/1 where data was lost under some conditions The tests now run quite faster than before. All the tests now run twice: once for TCP, once for SSL.
- Loading branch information
Loïc Hoguin
committed
Apr 29, 2012
1 parent
845d306
commit ee8c50c
Showing
8 changed files
with
914 additions
and
607 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,268 @@ | ||
%% Copyright (c) 2012, Loïc Hoguin <essen@ninenines.eu> | ||
%% | ||
%% Permission to use, copy, modify, and/or distribute this software for any | ||
%% purpose with or without fee is hereby granted, provided that the above | ||
%% copyright notice and this permission notice appear in all copies. | ||
%% | ||
%% THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | ||
%% WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | ||
%% MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | ||
%% ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | ||
%% WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | ||
%% ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | ||
%% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | ||
|
||
%% @private | ||
-module(cowboy_client). | ||
|
||
-export([init/1]). | ||
-export([state/1]). | ||
-export([transport/1]). | ||
|
||
-export([connect/4]). | ||
-export([raw_request/2]). | ||
-export([request/3]). | ||
-export([request/4]). | ||
-export([request/5]). | ||
-export([response/1]). | ||
-export([response_body/1]). | ||
-export([skip_body/1]). | ||
-export([stream_status/1]). | ||
-export([stream_headers/1]). | ||
-export([stream_header/1]). | ||
-export([stream_body/1]). | ||
|
||
-record(client, { | ||
state = wait :: wait | request | response | response_body, | ||
opts = [] :: [any()], | ||
socket = undefined :: undefined | inet:socket(), | ||
transport = undefined :: module(), | ||
timeout = 5000 :: timeout(), %% @todo Configurable. | ||
buffer = <<>> :: binary(), | ||
connection = keepalive :: keepalive | close, | ||
version = {1, 1} :: cowboy_http:version(), | ||
response_body = undefined :: undefined | non_neg_integer() | ||
}). | ||
|
||
init(Opts) -> | ||
{ok, #client{opts=Opts}}. | ||
|
||
state(#client{state=State}) -> | ||
State. | ||
|
||
transport(#client{socket=undefined}) -> | ||
{error, notconnected}; | ||
transport(#client{transport=Transport, socket=Socket}) -> | ||
{ok, Transport, Socket}. | ||
|
||
connect(Transport, Host, Port, Client) | ||
when is_binary(Host) -> | ||
connect(Transport, binary_to_list(Host), Port, Client); | ||
connect(Transport, Host, Port, Client=#client{state=State, opts=Opts}) | ||
when is_atom(Transport), is_list(Host), | ||
is_integer(Port), is_record(Client, client), | ||
State =:= wait -> | ||
{ok, Socket} = Transport:connect(Host, Port, Opts), | ||
{ok, Client#client{state=request, socket=Socket, transport=Transport}}. | ||
|
||
raw_request(Data, Client=#client{state=response_body}) -> | ||
{done, Client2} = skip_body(Client), | ||
raw_request(Data, Client2); | ||
raw_request(Data, Client=#client{ | ||
state=State, socket=Socket, transport=Transport}) | ||
when State =:= request -> | ||
ok = Transport:send(Socket, Data), | ||
{ok, Client}. | ||
|
||
request(Method, URL, Client) -> | ||
request(Method, URL, [], <<>>, Client). | ||
|
||
request(Method, URL, Headers, Client) -> | ||
request(Method, URL, Headers, <<>>, Client). | ||
|
||
request(Method, URL, Headers, Body, Client=#client{state=response_body}) -> | ||
{done, Client2} = skip_body(Client), | ||
request(Method, URL, Headers, Body, Client2); | ||
request(Method, URL, Headers, Body, Client=#client{ | ||
state=State, version=Version}) | ||
when State =:= wait; State =:= request -> | ||
{Transport, FullHost, Host, Port, Path} = parse_url(URL), | ||
{ok, Client2} = case State of | ||
wait -> connect(Transport, Host, Port, Client); | ||
request -> {ok, Client} | ||
end, | ||
VersionBin = cowboy_http:version_to_binary(Version), | ||
%% @todo do keepalive too, allow override... | ||
Headers2 = [ | ||
{<<"host">>, FullHost}, | ||
{<<"user-agent">>, <<"Cow">>} | ||
|Headers], | ||
Headers3 = case iolist_size(Body) of | ||
0 -> Headers2; | ||
Length -> [{<<"content-length">>, integer_to_list(Length)}|Headers2] | ||
end, | ||
HeadersData = [[Name, <<": ">>, Value, <<"\r\n">>] | ||
|| {Name, Value} <- Headers3], | ||
Data = [Method, <<" ">>, Path, <<" ">>, VersionBin, <<"\r\n">>, | ||
HeadersData, <<"\r\n">>, Body], | ||
raw_request(Data, Client2). | ||
|
||
parse_url(<< "https://", Rest/binary >>) -> | ||
parse_url(Rest, cowboy_ssl_transport); | ||
parse_url(<< "http://", Rest/binary >>) -> | ||
parse_url(Rest, cowboy_tcp_transport); | ||
parse_url(URL) -> | ||
parse_url(URL, cowboy_tcp_transport). | ||
|
||
parse_url(URL, Transport) -> | ||
case binary:split(URL, <<"/">>) of | ||
[Peer] -> | ||
{Host, Port} = parse_peer(Peer, Transport), | ||
{Transport, Peer, Host, Port, <<"/">>}; | ||
[Peer, Path] -> | ||
{Host, Port} = parse_peer(Peer, Transport), | ||
{Transport, Peer, Host, Port, [<<"/">>, Path]} | ||
end. | ||
|
||
parse_peer(Peer, Transport) -> | ||
case binary:split(Peer, <<":">>) of | ||
[Host] when Transport =:= cowboy_tcp_transport -> | ||
{binary_to_list(Host), 80}; | ||
[Host] when Transport =:= cowboy_ssl_transport -> | ||
{binary_to_list(Host), 443}; | ||
[Host, Port] -> | ||
{binary_to_list(Host), list_to_integer(binary_to_list(Port))} | ||
end. | ||
|
||
response(Client=#client{state=response_body}) -> | ||
{done, Client2} = skip_body(Client), | ||
response(Client2); | ||
response(Client=#client{state=request}) -> | ||
case stream_status(Client) of | ||
{ok, Status, _, Client2} -> | ||
case stream_headers(Client2) of | ||
{ok, Headers, Client3} -> | ||
{ok, Status, Headers, Client3}; | ||
{error, Reason} -> | ||
{error, Reason} | ||
end; | ||
{error, Reason} -> | ||
{error, Reason} | ||
end. | ||
|
||
response_body(Client=#client{state=response_body}) -> | ||
response_body_loop(Client, <<>>). | ||
|
||
response_body_loop(Client, Acc) -> | ||
case stream_body(Client) of | ||
{ok, Data, Client2} -> | ||
response_body_loop(Client2, << Acc/binary, Data/binary >>); | ||
{done, Client2} -> | ||
{ok, Acc, Client2} | ||
end. | ||
|
||
skip_body(Client=#client{state=response_body}) -> | ||
case stream_body(Client) of | ||
{ok, _, Client2} -> skip_body(Client2); | ||
Done -> Done | ||
end. | ||
|
||
stream_status(Client=#client{state=State, buffer=Buffer}) | ||
when State =:= request -> | ||
case binary:split(Buffer, <<"\r\n">>) of | ||
[Line, Rest] -> | ||
parse_status(Client#client{state=response, buffer=Rest}, Line); | ||
_ -> | ||
case recv(Client) of | ||
{ok, Data} -> | ||
Buffer2 = << Buffer/binary, Data/binary >>, | ||
stream_status(Client#client{buffer=Buffer2}); | ||
{error, Reason} -> | ||
{error, Reason} | ||
end | ||
end. | ||
|
||
parse_status(Client, << "HTTP/", High, ".", Low, " ", | ||
S3, S2, S1, " ", StatusStr/binary >>) | ||
when High >= $0, High =< $9, Low >= $0, Low =< $9, | ||
S3 >= $0, S3 =< $9, S2 >= $0, S2 =< $9, S1 >= $0, S1 =< $9 -> | ||
Version = {High - $0, Low - $0}, | ||
Status = (S3 - $0) * 100 + (S2 - $0) * 10 + S1 - $0, | ||
{ok, Status, StatusStr, Client#client{version=Version}}. | ||
|
||
stream_headers(Client=#client{state=State}) | ||
when State =:= response -> | ||
stream_headers(Client, []). | ||
|
||
stream_headers(Client, Acc) -> | ||
case stream_header(Client) of | ||
{ok, Name, Value, Client2} -> | ||
stream_headers(Client2, [{Name, Value}|Acc]); | ||
{done, Client2} -> | ||
{ok, Acc, Client2}; | ||
{error, Reason} -> | ||
{error, Reason} | ||
end. | ||
|
||
stream_header(Client=#client{state=State, buffer=Buffer, | ||
response_body=RespBody}) when State =:= response -> | ||
case binary:split(Buffer, <<"\r\n">>) of | ||
[<<>>, Rest] -> | ||
%% If we have a body, set response_body. | ||
Client2 = case RespBody of | ||
undefined -> Client#client{state=request}; | ||
0 -> Client#client{state=request}; | ||
_ -> Client#client{state=response_body} | ||
end, | ||
{done, Client2#client{buffer=Rest}}; | ||
[Line, Rest] -> | ||
%% @todo Do a better parsing later on. | ||
[Name, Value] = binary:split(Line, <<": ">>), | ||
Name2 = cowboy_bstr:to_lower(Name), | ||
Client2 = case Name2 of | ||
<<"content-length">> -> | ||
Length = list_to_integer(binary_to_list(Value)), | ||
if Length >= 0 -> ok end, | ||
Client#client{response_body=Length}; | ||
_ -> | ||
Client | ||
end, | ||
{ok, Name2, Value, Client2#client{buffer=Rest}}; | ||
_ -> | ||
case recv(Client) of | ||
{ok, Data} -> | ||
Buffer2 = << Buffer/binary, Data/binary >>, | ||
stream_header(Client#client{buffer=Buffer2}); | ||
{error, Reason} -> | ||
{error, Reason} | ||
end | ||
end. | ||
|
||
stream_body(Client=#client{state=response_body, response_body=RespBody}) | ||
when RespBody =:= undefined; RespBody =:= 0 -> | ||
{done, Client#client{state=request, response_body=undefined}}; | ||
stream_body(Client=#client{state=response_body, buffer=Buffer, | ||
response_body=Length}) when is_integer(Length) -> | ||
case byte_size(Buffer) of | ||
0 -> | ||
case recv(Client) of | ||
{ok, Body} when byte_size(Body) =< Length -> | ||
Length2 = Length - byte_size(Body), | ||
{ok, Body, Client#client{response_body=Length2}}; | ||
{ok, Data} -> | ||
<< Body:Length/binary, Rest/binary >> = Data, | ||
{ok, Body, Client#client{buffer=Rest, | ||
response_body=undefined}}; | ||
{error, Reason} -> | ||
{error, Reason} | ||
end; | ||
N when N =< Length -> | ||
Length2 = Length - N, | ||
{ok, Buffer, Client#client{buffer= <<>>, response_body=Length2}}; | ||
_ -> | ||
<< Body:Length/binary, Rest/binary >> = Buffer, | ||
{ok, Body, Client#client{buffer=Rest, response_body=undefined}} | ||
end. | ||
|
||
recv(#client{socket=Socket, transport=Transport, timeout=Timeout}) -> | ||
Transport:recv(Socket, 0, Timeout). |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.