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| Author |
Message |
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| erik.ej.reitsma at ericss |
 Posted: Mon Oct 20, 2003 1:56 pm |
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Guest
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Hi,
I have found what seems to me like a bug in httpc_handler in inets-3.0.7 (and also in inets-3.0.6). The problem is, that in some situation the body of an HTTP POST is sent twice.
When I do an HTTP POST to a .NET server, the .NET server responds with a 100-continue, whether I ask for it or not. In the documentation of httpc_handler:status_continue/2 it says, that this should be ignored if the request has already been completed. In my case, this is already completed, because the POST body is sent immediately if I do not specify that I wish to expect the 100-continue. Therefore the body gets sent twice: once at the initial request, and again when the .NET server sends the status code 100.
I have replaced the implementation of httpc_handler:status_continue/2 with the following code:
status_continue(Req,Session) ->
Headers = Req#request.headers,
Method = Req#request.method,
if
Method==post;Method==put ->
case Headers#req_headers.expect of
"100-continue" ->
%% only in this case we have not yet send the body
{_,Body}=Req#request.content,
http_lib:send(Session#tcp_session.scheme,Session#tcp_session.socket,Body),
next_response_with_request(Req,Session);
_ ->
%% in other cases the status code should be ignored
next_response_with_request(Req,Session)
end;
true ->
%% in other cases the status code should be ignored
next_response_with_request(Req,Session)
end.
This seems to me to be a more correct implementation of the comments in the original source of httpc_handler. It solves the problem I had and should not break anything.
For inets-3.0.6, #tcp_session should be replaced by #session.
*Erik.
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