(*
This file is part of libmicrohttpd
Copyright (C) 2007, 2008 Christian Grothoff (and other contributing authors)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*)
(**
* @file refuse_post_example.pp (Original: refuse_post_example.c)
* @brief example for how to refuse a POST request properly
* @author Christian Grothoff, Sebastian Gerhardt and Silvio Clécio
*)
program refuse_post_example;
{$mode objfpc}{$H+}
uses
sysutils, libmicrohttpd;
const
askpage: Pcchar =
''#10+
'Upload a file, please!
'#10+
''#10+
'';
BUSYPAGE: Pcchar = 'Webserver busyWe are too busy to process POSTs right now.';
function ahc_echo(cls: Pointer; connection: PMHD_Connection; url: Pcchar;
method: Pcchar; version: Pcchar; upload_data: Pcchar;
upload_data_size: Psize_t; ptr: PPointer): cint; cdecl;
const
aptr: cint = 0;
var
me: Pcchar;
response: PMHD_Response;
ret: cint;
begin
me := cls;
if (0 <> strcomp(method, 'GET')) and (0 <> strcomp(method, 'POST')) then
Exit(MHD_NO); (* unexpected method *)
if @aptr <> ptr^ then
begin
ptr^ := @aptr;
(* always to busy for POST requests *)
if 0 = strcomp(method, 'POST') then
begin
response := MHD_create_response_from_buffer(strlen(BUSYPAGE),
Pointer(BUSYPAGE), MHD_RESPMEM_PERSISTENT);
ret := MHD_queue_response (connection, MHD_HTTP_SERVICE_UNAVAILABLE,
response);
MHD_destroy_response (response);
Exit(ret);
end;
end;
ptr^ := nil; (* reset when done *)
response := MHD_create_response_from_buffer(strlen(me), Pointer(me),
MHD_RESPMEM_PERSISTENT);
ret := MHD_queue_response(connection, MHD_HTTP_OK, response);
MHD_destroy_response(response);
Result := ret;
end;
var
d: PMHD_Daemon;
begin
if argc <> 2 then
begin
WriteLn(argv[0], ' PORT');
Halt(1);
end;
d := MHD_start_daemon(MHD_USE_THREAD_PER_CONNECTION or MHD_USE_DEBUG,
StrToInt(argv[1]), nil, nil, @ahc_echo, Pointer(askpage),
MHD_OPTION_END);
if d = nil then
Halt(1);
ReadLn;
MHD_stop_daemon(d);
end.