Hello everyone.
I've just found a bug in inets http-client (or somewhere in chunk decode
routines). It is reproduced when a remote http-server sends zero-length
response:
goryachev@REDACTED:~% erl
Erlang (BEAM) emulator version 5.5.3 [source] [async-threads:0] [hipe] [kernel-poll:false]
Eshell V5.5.3 (abort with ^G)
1> http:request(get, {"http://www.goryachev.org/", []}, [], []).
=INFO REPORT==== 27-Feb-2007::17:04:20 ===
The inets application was not started. Has now been started as a temporary application.
{error,session_remotly_closed}
2>
=ERROR REPORT==== 27-Feb-2007::17:05:36 ===
** Generic server <0.41.0> terminating
** Last message in was {tcp_closed,#Port<0.114>}
** When Server state == {state,
{request,
#Ref<0.0.0.68>,
<0.29.0>,
0,
http,
{"www.goryachev.org",80},
"/",
[],
get,
{http_request_h,
undefined,
"keep-alive",
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
"www.goryachev.org",
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
[],
undefined,
undefined,
undefined,
undefined,
"0",
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
[]},
{[],[]},
{http_options,infinity,true,[],undefined,false},
"http://www.goryachev.org/",
[],
none,
[]},
{tcp_session,
{{"www.goryachev.org",80},<0.41.0>},
false,
http,
#Port<0.114>,
1},
{"HTTP/1.1",200,"OK"},
{http_response_h,
undefined,
"keep-alive",
"Tue, 27 Feb 2007 14:03:13 GMT",
undefined,
undefined,
"chunked",
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
"nginx/0.5.11",
"Accept-Encoding, Cookie",
undefined,
undefined,
undefined,
undefined,
"-1",
undefined,
undefined,
undefined,
"text/html; charset=utf-8",
undefined,
undefined,
[]},
undefined,
{http_chunk,
decode_data,
[0,
<<"\r\n">>,
{nolimit,
<<>>,
0,
nolimit,
{200,
{request,
#Ref<0.0.0.68>,
<0.29.0>,
0,
http,
{"www.goryachev.org",80},
"/",
[],
get,
{http_request_h,
undefined,
"keep-alive",
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
"www.goryachev.org",
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
[],
undefined,
undefined,
undefined,
undefined,
"0",
undefined,
undefined,
undefined,
undefined,
undefined,
undefined,
[]},
{[],[]},
{http_options,infinity,true,[],undefined,false},
"http://www.goryachev.org/",
[],
none,
[]}}}]},
{[],[]},
new,
[],
nolimit,
nolimit,
{options,{undefined,[]},0,2,2,disabled,enabled,false},
{timers,[],undefined}}
** Reason for termination ==
** session_remotly_closed
This behaviour could be worked around using timeout param (i.e. {timeout, 10000}).
--
Igor Goryachev
Yandex development team.