mirror of
https://github.com/ivabus/pantry
synced 2024-11-10 10:35:17 +03:00
215 lines
5.4 KiB
C
215 lines
5.4 KiB
C
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#include <sys/types.h>
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#ifndef _WIN32
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#include <sys/select.h>
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#include <sys/socket.h>
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#else
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#include <winsock2.h>
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#endif
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#include <microhttpd.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#if defined(_MSC_VER) && _MSC_VER + 0 <= 1800
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/* Substitution is OK while return value is not used */
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#define snprintf _snprintf
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#endif
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#define PORT 8888
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#define POSTBUFFERSIZE 512
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#define MAXNAMESIZE 20
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#define MAXANSWERSIZE 512
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#define GET 0
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#define POST 1
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struct connection_info_struct
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{
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int connectiontype;
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char *answerstring;
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struct MHD_PostProcessor *postprocessor;
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};
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static const char *askpage =
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"<html><body>\n"
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"What's your name, Sir?<br>\n"
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"<form action=\"/namepost\" method=\"post\">\n"
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"<input name=\"name\" type=\"text\">\n"
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"<input type=\"submit\" value=\" Send \"></form>\n"
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"</body></html>";
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#define GREETINGPAGE \
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"<html><body><h1>Welcome, %s!</center></h1></body></html>"
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static const char *errorpage =
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"<html><body>This doesn't seem to be right.</body></html>";
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static enum MHD_Result
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send_page (struct MHD_Connection *connection, const char *page)
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{
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enum MHD_Result ret;
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struct MHD_Response *response;
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response = MHD_create_response_from_buffer_static (strlen (page), page);
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if (! response)
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return MHD_NO;
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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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static enum MHD_Result
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iterate_post (void *coninfo_cls, enum MHD_ValueKind kind, const char *key,
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const char *filename, const char *content_type,
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const char *transfer_encoding, const char *data, uint64_t off,
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size_t size)
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{
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struct connection_info_struct *con_info = coninfo_cls;
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(void) kind; /* Unused. Silent compiler warning. */
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(void) filename; /* Unused. Silent compiler warning. */
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(void) content_type; /* Unused. Silent compiler warning. */
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(void) transfer_encoding; /* Unused. Silent compiler warning. */
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(void) off; /* Unused. Silent compiler warning. */
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if (0 == strcmp (key, "name"))
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{
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if ((size > 0) && (size <= MAXNAMESIZE))
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{
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char *answerstring;
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answerstring = malloc (MAXANSWERSIZE);
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if (! answerstring)
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return MHD_NO;
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snprintf (answerstring, MAXANSWERSIZE, GREETINGPAGE, data);
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con_info->answerstring = answerstring;
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}
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else
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con_info->answerstring = NULL;
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return MHD_NO;
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}
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return MHD_YES;
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}
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static void
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request_completed (void *cls, struct MHD_Connection *connection,
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void **req_cls, enum MHD_RequestTerminationCode toe)
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{
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struct connection_info_struct *con_info = *req_cls;
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(void) cls; /* Unused. Silent compiler warning. */
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(void) connection; /* Unused. Silent compiler warning. */
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(void) toe; /* Unused. Silent compiler warning. */
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if (NULL == con_info)
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return;
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if (con_info->connectiontype == POST)
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{
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MHD_destroy_post_processor (con_info->postprocessor);
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if (con_info->answerstring)
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free (con_info->answerstring);
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}
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free (con_info);
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*req_cls = NULL;
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}
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static enum MHD_Result
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answer_to_connection (void *cls, struct MHD_Connection *connection,
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const char *url, const char *method,
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const char *version, const char *upload_data,
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size_t *upload_data_size, void **req_cls)
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{
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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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if (NULL == *req_cls)
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{
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struct connection_info_struct *con_info;
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con_info = malloc (sizeof (struct connection_info_struct));
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if (NULL == con_info)
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return MHD_NO;
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con_info->answerstring = NULL;
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if (0 == strcmp (method, "POST"))
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{
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con_info->postprocessor =
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MHD_create_post_processor (connection, POSTBUFFERSIZE,
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iterate_post, (void *) con_info);
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if (NULL == con_info->postprocessor)
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{
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free (con_info);
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return MHD_NO;
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}
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con_info->connectiontype = POST;
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}
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else
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con_info->connectiontype = GET;
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*req_cls = (void *) con_info;
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return MHD_YES;
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}
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if (0 == strcmp (method, "GET"))
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{
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return send_page (connection, askpage);
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}
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if (0 == strcmp (method, "POST"))
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{
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struct connection_info_struct *con_info = *req_cls;
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if (*upload_data_size != 0)
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{
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if (MHD_YES !=
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MHD_post_process (con_info->postprocessor,
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upload_data,
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*upload_data_size))
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return MHD_NO;
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*upload_data_size = 0;
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return MHD_YES;
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}
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else if (NULL != con_info->answerstring)
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return send_page (connection, con_info->answerstring);
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}
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return send_page (connection, errorpage);
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}
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int
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main (void)
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{
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struct MHD_Daemon *daemon;
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daemon = MHD_start_daemon (MHD_USE_AUTO | MHD_USE_INTERNAL_POLLING_THREAD,
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PORT, NULL, NULL,
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&answer_to_connection, NULL,
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MHD_OPTION_NOTIFY_COMPLETED, request_completed,
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NULL, MHD_OPTION_END);
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if (NULL == daemon)
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return 1;
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while (1) {
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sleep(1); // or use another method to pause execution
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}
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MHD_stop_daemon (daemon);
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return 0;
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}
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