| /* 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> |
| |
| #if defined(_MSC_VER) && _MSC_VER + 0 <= 1800 |
| /* Substitution is OK while return value is not used */ |
| #define snprintf _snprintf |
| #endif |
| |
| #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; |
| }; |
| |
| static const char *askpage = |
| "<html><body>\n" |
| "What's your name, Sir?<br>\n" |
| "<form action=\"/namepost\" method=\"post\">\n" |
| "<input name=\"name\" type=\"text\">\n" |
| "<input type=\"submit\" value=\" Send \"></form>\n" |
| "</body></html>"; |
| |
| #define GREETINGPAGE \ |
| "<html><body><h1>Welcome, %s!</center></h1></body></html>" |
| |
| static const char *errorpage = |
| "<html><body>This doesn't seem to be right.</body></html>"; |
| |
| |
| static enum MHD_Result |
| send_page (struct MHD_Connection *connection, const char *page) |
| { |
| enum MHD_Result ret; |
| struct MHD_Response *response; |
| |
| |
| response = MHD_create_response_from_buffer_static (strlen (page), page); |
| if (! response) |
| return MHD_NO; |
| |
| ret = MHD_queue_response (connection, MHD_HTTP_OK, response); |
| MHD_destroy_response (response); |
| |
| return ret; |
| } |
| |
| |
| static enum MHD_Result |
| 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; |
| (void) kind; /* Unused. Silent compiler warning. */ |
| (void) filename; /* Unused. Silent compiler warning. */ |
| (void) content_type; /* Unused. Silent compiler warning. */ |
| (void) transfer_encoding; /* Unused. Silent compiler warning. */ |
| (void) off; /* Unused. Silent compiler warning. */ |
| |
| 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 **req_cls, enum MHD_RequestTerminationCode toe) |
| { |
| struct connection_info_struct *con_info = *req_cls; |
| (void) cls; /* Unused. Silent compiler warning. */ |
| (void) connection; /* Unused. Silent compiler warning. */ |
| (void) toe; /* Unused. Silent compiler warning. */ |
| |
| 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); |
| *req_cls = NULL; |
| } |
| |
| |
| static enum MHD_Result |
| 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 **req_cls) |
| { |
| (void) cls; /* Unused. Silent compiler warning. */ |
| (void) url; /* Unused. Silent compiler warning. */ |
| (void) version; /* Unused. Silent compiler warning. */ |
| |
| if (NULL == *req_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; |
| |
| *req_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 = *req_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 (void) |
| { |
| struct MHD_Daemon *daemon; |
| |
| daemon = MHD_start_daemon (MHD_USE_AUTO | MHD_USE_INTERNAL_POLLING_THREAD, |
| 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; |
| } |
