193 lines
4.6 KiB
C
193 lines
4.6 KiB
C
/* Feel free to use this example code in any way
|
|
you see fit (Public Domain) */
|
|
|
|
#include <sys/types.h>
|
|
#ifndef _WIN32
|
|
#include <sys/select.h>
|
|
#include <sys/socket.h>
|
|
#else
|
|
#include <winsock2.h>
|
|
#endif
|
|
#include <microhttpd.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
#define PORT 8888
|
|
#define POSTBUFFERSIZE 512
|
|
#define MAXNAMESIZE 20
|
|
#define MAXANSWERSIZE 512
|
|
|
|
#define GET 0
|
|
#define POST 1
|
|
|
|
struct connection_info_struct
|
|
{
|
|
int connectiontype;
|
|
char *answerstring;
|
|
struct MHD_PostProcessor *postprocessor;
|
|
};
|
|
|
|
const char *askpage = "<html><body>\
|
|
What's your name, Sir?<br>\
|
|
<form action=\"/namepost\" method=\"post\">\
|
|
<input name=\"name\" type=\"text\"\
|
|
<input type=\"submit\" value=\" Send \"></form>\
|
|
</body></html>";
|
|
|
|
const char *greetingpage =
|
|
"<html><body><h1>Welcome, %s!</center></h1></body></html>";
|
|
|
|
const char *errorpage =
|
|
"<html><body>This doesn't seem to be right.</body></html>";
|
|
|
|
|
|
static int
|
|
send_page (struct MHD_Connection *connection, const char *page)
|
|
{
|
|
int ret;
|
|
struct MHD_Response *response;
|
|
|
|
|
|
response =
|
|
MHD_create_response_from_buffer (strlen (page), (void *) page,
|
|
MHD_RESPMEM_PERSISTENT);
|
|
if (!response)
|
|
return MHD_NO;
|
|
|
|
ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
|
|
MHD_destroy_response (response);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int
|
|
iterate_post (void *coninfo_cls, enum MHD_ValueKind kind, const char *key,
|
|
const char *filename, const char *content_type,
|
|
const char *transfer_encoding, const char *data, uint64_t off,
|
|
size_t size)
|
|
{
|
|
struct connection_info_struct *con_info = coninfo_cls;
|
|
|
|
if (0 == strcmp (key, "name"))
|
|
{
|
|
if ((size > 0) && (size <= MAXNAMESIZE))
|
|
{
|
|
char *answerstring;
|
|
answerstring = malloc (MAXANSWERSIZE);
|
|
if (!answerstring)
|
|
return MHD_NO;
|
|
|
|
snprintf (answerstring, MAXANSWERSIZE, greetingpage, data);
|
|
con_info->answerstring = answerstring;
|
|
}
|
|
else
|
|
con_info->answerstring = NULL;
|
|
|
|
return MHD_NO;
|
|
}
|
|
|
|
return MHD_YES;
|
|
}
|
|
|
|
static void
|
|
request_completed (void *cls, struct MHD_Connection *connection,
|
|
void **con_cls, enum MHD_RequestTerminationCode toe)
|
|
{
|
|
struct connection_info_struct *con_info = *con_cls;
|
|
|
|
if (NULL == con_info)
|
|
return;
|
|
|
|
if (con_info->connectiontype == POST)
|
|
{
|
|
MHD_destroy_post_processor (con_info->postprocessor);
|
|
if (con_info->answerstring)
|
|
free (con_info->answerstring);
|
|
}
|
|
|
|
free (con_info);
|
|
*con_cls = NULL;
|
|
}
|
|
|
|
|
|
static int
|
|
answer_to_connection (void *cls, struct MHD_Connection *connection,
|
|
const char *url, const char *method,
|
|
const char *version, const char *upload_data,
|
|
size_t *upload_data_size, void **con_cls)
|
|
{
|
|
if (NULL == *con_cls)
|
|
{
|
|
struct connection_info_struct *con_info;
|
|
|
|
con_info = malloc (sizeof (struct connection_info_struct));
|
|
if (NULL == con_info)
|
|
return MHD_NO;
|
|
con_info->answerstring = NULL;
|
|
|
|
if (0 == strcmp (method, "POST"))
|
|
{
|
|
con_info->postprocessor =
|
|
MHD_create_post_processor (connection, POSTBUFFERSIZE,
|
|
iterate_post, (void *) con_info);
|
|
|
|
if (NULL == con_info->postprocessor)
|
|
{
|
|
free (con_info);
|
|
return MHD_NO;
|
|
}
|
|
|
|
con_info->connectiontype = POST;
|
|
}
|
|
else
|
|
con_info->connectiontype = GET;
|
|
|
|
*con_cls = (void *) con_info;
|
|
|
|
return MHD_YES;
|
|
}
|
|
|
|
if (0 == strcmp (method, "GET"))
|
|
{
|
|
return send_page (connection, askpage);
|
|
}
|
|
|
|
if (0 == strcmp (method, "POST"))
|
|
{
|
|
struct connection_info_struct *con_info = *con_cls;
|
|
|
|
if (*upload_data_size != 0)
|
|
{
|
|
MHD_post_process (con_info->postprocessor, upload_data,
|
|
*upload_data_size);
|
|
*upload_data_size = 0;
|
|
|
|
return MHD_YES;
|
|
}
|
|
else if (NULL != con_info->answerstring)
|
|
return send_page (connection, con_info->answerstring);
|
|
}
|
|
|
|
return send_page (connection, errorpage);
|
|
}
|
|
|
|
int
|
|
main ()
|
|
{
|
|
struct MHD_Daemon *daemon;
|
|
|
|
daemon = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY, PORT, NULL, NULL,
|
|
&answer_to_connection, NULL,
|
|
MHD_OPTION_NOTIFY_COMPLETED, request_completed,
|
|
NULL, MHD_OPTION_END);
|
|
if (NULL == daemon)
|
|
return 1;
|
|
|
|
(void) getchar ();
|
|
|
|
MHD_stop_daemon (daemon);
|
|
|
|
return 0;
|
|
}
|