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109 lines
3.7 KiB
C
109 lines
3.7 KiB
C
/*
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This file is part of libmicrohttpd
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Copyright (C) 2007, 2008 Christian Grothoff (and other contributing authors)
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file refuse_post_example.c
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* @brief example for how to refuse a POST request properly
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* @author Christian Grothoff and Sebastian Gerhardt
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*/
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#include "platform.h"
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#include <microhttpd.h>
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const char *askpage =
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"<html><body>\n\
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Upload a file, please!<br>\n\
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<form action=\"/filepost\" method=\"post\" enctype=\"multipart/form-data\">\n\
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<input name=\"file\" type=\"file\">\n\
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<input type=\"submit\" value=\" Send \"></form>\n\
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</body></html>";
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#define BUSYPAGE \
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"<html><head><title>Webserver busy</title></head><body>We are too busy to process POSTs right now.</body></html>"
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static int
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ahc_echo (void *cls,
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struct MHD_Connection *connection,
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const char *url,
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const char *method,
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const char *version,
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const char *upload_data, size_t *upload_data_size, void **ptr)
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{
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static int aptr;
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const char *me = cls;
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struct MHD_Response *response;
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int ret;
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(void) cls; /* Unused. Silent compiler warning. */
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(void) url; /* Unused. Silent compiler warning. */
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(void) version; /* Unused. Silent compiler warning. */
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(void) upload_data; /* Unused. Silent compiler warning. */
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(void) upload_data_size; /* Unused. Silent compiler warning. */
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if ((0 != strcmp (method, "GET")) && (0 != strcmp (method, "POST")))
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return MHD_NO; /* unexpected method */
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if (&aptr != *ptr)
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{
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*ptr = &aptr;
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/* always to busy for POST requests */
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if (0 == strcmp (method, "POST"))
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{
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response = MHD_create_response_from_buffer (strlen (BUSYPAGE),
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(void *) BUSYPAGE,
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MHD_RESPMEM_PERSISTENT);
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ret =
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MHD_queue_response (connection, MHD_HTTP_SERVICE_UNAVAILABLE,
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response);
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MHD_destroy_response (response);
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return ret;
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}
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}
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*ptr = NULL; /* reset when done */
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response = MHD_create_response_from_buffer (strlen (me),
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(void *) me,
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MHD_RESPMEM_PERSISTENT);
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ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
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MHD_destroy_response (response);
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return ret;
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}
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int
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main (int argc, char *const *argv)
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{
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struct MHD_Daemon *d;
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if (argc != 2)
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{
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printf ("%s PORT\n", argv[0]);
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return 1;
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}
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d = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION
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| MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG,
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atoi (argv[1]),
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NULL, NULL, &ahc_echo, (void *) askpage,
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MHD_OPTION_END);
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if (d == NULL)
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return 1;
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(void) getc (stdin);
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MHD_stop_daemon (d);
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return 0;
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}
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/* end of refuse_post_example.c */
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