API tools faq
paste
Advertisement
AntonioVillanueva

POST Libmicrohttpd TEST

AntonioVillanueva
Dec 19th, 2018
309
0
Never
Add comment
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
C++ 8.24 KB | None | 0 0
raw download clone embed print report
  1. /* simplepost  https://www.gnu.org/software/libmicrohttpd/
  2.  * cc simplepost.c -o simplepost -I$PATH_TO_LIBMHD_INCLUDES -L$PATH_TO_LIBMHD_LIBS -lmicrohttpd
  3.  *  */
  4.    
  5.  
  6. #include <sys/types.h>
  7. #ifndef _WIN32
  8. #include <sys/select.h>
  9. #include <sys/socket.h>
  10. #else
  11. #include <winsock2.h>
  12. #endif
  13. #include <microhttpd.h>
  14. #include <stdio.h>
  15. #include <string.h>
  16. #include <stdlib.h>
  17.  
  18. #if defined(_MSC_VER) && _MSC_VER+0 <= 1800
  19. /* Substitution is OK while return value is not used */
  20. #define snprintf _snprintf
  21. #endif
  22.  
  23. #define PORT            8888
  24. #define POSTBUFFERSIZE  512
  25. #define MAXNAMESIZE     20
  26. #define MAXANSWERSIZE   512
  27.  
  28. //Definiciones para GET = 0  y POST = 1
  29. #define GET             0
  30. #define POST            1
  31.  
  32. struct connection_info_struct
  33. {
  34.   int connectiontype;
  35.   char *answerstring;
  36.   struct MHD_PostProcessor *postprocessor;
  37. };
  38.  
  39. /*******************************************************************************************************************************/
  40. //Analisis de la conexion por terminal de servidor
  41. int print_out_key(void *cls,enum MHD_ValueKind kind,const char *key,const char *value){
  42.     printf ("%s : %s \n",key,value);
  43.     return MHD_YES;
  44. }
  45.  
  46. /*******************************************************************************************************************************/
  47. //Diferentes cadenas texto en formato html
  48. //Pagina inicial nombre es la variable que lee el nombre a mezclar en la respuesta
  49. //El navegador muestra una direccion ip con /namepost ex. 192.168.6.150:8888/namepost
  50. const char *askpage = "<html><body>\
  51.                       Su nombre ?<br>\
  52.                       <form action=\"/namepost\" method=\"post\">\
  53.                       <input name=\"nombre\" type=\"text\">\
  54.                       <input type=\"submit\" value=\" Send \"></form>\
  55.                       </body></html>";
  56.                        
  57. //Respuesta al introducir el nombre , mezcla Bienvenido con el nombre en entrada anterior
  58. const char *greetingpage =
  59.   "<html><body><h1> Bienvenido , %s!</center></h1></body></html>";
  60.  
  61. //Pagina de Error
  62. const char *errorpage =
  63.   "<html><body> Error ! Esto parece no ser correcto.</body></html>";
  64.  
  65. /*******************************************************************************************************************************/
  66. static int send_page (struct MHD_Connection *connection, const char *page) //Crea la pagina de respuesta , con la info html apropiada
  67. {
  68.   int ret;
  69.   struct MHD_Response *response;
  70.  
  71.  
  72.   response =MHD_create_response_from_buffer (strlen (page), (void *) page,MHD_RESPMEM_PERSISTENT);
  73.  
  74.   if (!response) { return MHD_NO;}
  75.  
  76.   ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
  77.   MHD_destroy_response (response);
  78.  
  79.   return ret;
  80. }
  81.  
  82. /*******************************************************************************************************************************/
  83. //Rellena en la estructura connection_info_struct->answerstrign con el nombre recuperado
  84. static int iterate_post (void *coninfo_cls, enum MHD_ValueKind kind, const char *key,
  85.               const char *filename, const char *content_type,
  86.               const char *transfer_encoding, const char *data, uint64_t off,
  87.               size_t size)
  88. {
  89.   struct connection_info_struct *con_info = coninfo_cls;
  90.   (void)kind;               /* Unused. Silent compiler warning. */
  91.   (void)filename;           /* Unused. Silent compiler warning. */
  92.   (void)content_type;       /* Unused. Silent compiler warning. */
  93.   (void)transfer_encoding;  /* Unused. Silent compiler warning. */
  94.   (void)off;                /* Unused. Silent compiler warning. */
  95.  
  96. //key contiene nombre y data el nombre introducido
  97.     printf ("\n Name = %s \n",data);
  98.  
  99.   if (0 == strcmp (key, "nombre"))//Busca la cadena nombre en const char *key
  100.     {
  101.       if ((size > 0) && (size <= MAXNAMESIZE))//Si el tamno es  mayor de 0 y menor 20
  102.         {
  103.           char *answerstring;
  104.           answerstring = malloc (MAXANSWERSIZE);//Reserva memoria para la respuesta
  105.           if (!answerstring) {return MHD_NO;}//Error no hay respuesta
  106.  
  107.             //Crea una respuesta answerstring cpn Bienvenido + data
  108.           snprintf (answerstring, MAXANSWERSIZE, greetingpage, data);//Bienvenido + nombre
  109.           con_info->answerstring = answerstring;
  110.         }
  111.       else
  112.         con_info->answerstring = NULL;
  113.  
  114.       return MHD_NO;
  115.     }
  116.  
  117.   return MHD_YES;
  118. }
  119.  
  120. /*******************************************************************************************************************************/
  121.  
  122. static void request_completed (void *cls, struct MHD_Connection *connection,
  123.                    void **con_cls, enum MHD_RequestTerminationCode toe)
  124. {
  125.   struct connection_info_struct *con_info = *con_cls;
  126.   (void)cls;         /* Unused. Silent compiler warning. */
  127.   (void)connection;  /* Unused. Silent compiler warning. */
  128.   (void)toe;         /* Unused. Silent compiler warning. */
  129.  
  130.   if (NULL == con_info) {return;}
  131.  
  132.   if (con_info->connectiontype == POST)
  133.     {
  134.       MHD_destroy_post_processor (con_info->postprocessor);
  135.       if (con_info->answerstring)
  136.         free (con_info->answerstring);
  137.     }
  138.  
  139.   free (con_info);
  140.   *con_cls = NULL;
  141. }
  142.  
  143. /*******************************************************************************************************************************/
  144. static int answer_to_connection (void *cls, struct MHD_Connection *connection,const char *url, const char *method,
  145.                       const char *version, const char *upload_data, size_t *upload_data_size, void **con_cls)
  146. {
  147.   (void)cls;               /* Unused. Silent compiler warning. */
  148.   (void)url;               /* Unused. Silent compiler warning. */
  149.   (void)version;           /* Unused. Silent compiler warning. */
  150.  
  151.   //Solo para debug
  152.     MHD_get_connection_values(connection,MHD_HEADER_KIND,&print_out_key,NULL);//Analisis de la conexion web por terminal en servidor , no necesario  
  153.    
  154.   /**************************************************************************/
  155.  
  156.   if (NULL == *con_cls)
  157.     {
  158.       struct connection_info_struct *con_info;//Structura para compartir informacion tipo de conexion,cadena respuesta ,MHD_PostProcesseur ..
  159.  
  160.       con_info = malloc (sizeof (struct connection_info_struct));//Reserva memoria para esta estructura
  161.       if (NULL == con_info) { return MHD_NO;}
  162.      
  163.       con_info->answerstring = NULL;//Cadena de respuesta por el momento NULL
  164.  
  165.       if (0 == strcmp (method, "POST"))//metodo POST
  166.         {
  167.         //rellena la struct connection_info_struct
  168.           con_info->postprocessor =MHD_create_post_processor (connection, POSTBUFFERSIZE,iterate_post, (void *) con_info);
  169.  
  170.           if (NULL == con_info->postprocessor) //Error ! No hay post_processor
  171.             {
  172.               free (con_info);
  173.               return MHD_NO;
  174.             }
  175.  
  176.           con_info->connectiontype = POST;
  177.         }
  178.       else
  179.         con_info->connectiontype = GET;
  180.  
  181.       *con_cls = (void *) con_info;
  182.  
  183.       return MHD_YES;
  184.     }
  185.  
  186.  
  187. // Metodo Get envia pagina inicial (askpage)  de pregunta Su nombre ?  Send ..;
  188.    
  189.   if (0 == strcmp (method, "GET")){ return send_page (connection, askpage); }
  190.  
  191.   if (0 == strcmp (method, "POST"))//metodo POST
  192.     {
  193.       struct connection_info_struct *con_info = *con_cls;
  194.  
  195.       if (*upload_data_size != 0)
  196.         {
  197.           MHD_post_process (con_info->postprocessor, upload_data,
  198.                             *upload_data_size);
  199.           *upload_data_size = 0;
  200.  
  201.           return MHD_YES;
  202.         }
  203.       else if (NULL != con_info->answerstring)
  204.         return send_page (connection, con_info->answerstring);//pagina con_info->answerstring  de pregunta Su nombre ?  Send ..;
  205.     }
  206.  
  207.   return send_page (connection, errorpage);//pagina ERROR
  208. }
  209. /*******************************************************************************************************************************/
  210. int main ()
  211. {
  212.   struct MHD_Daemon *daemon;
  213.  
  214.   daemon = MHD_start_daemon (MHD_USE_AUTO | MHD_USE_INTERNAL_POLLING_THREAD, PORT, NULL, NULL,&answer_to_connection, NULL,
  215.                              MHD_OPTION_NOTIFY_COMPLETED, request_completed,
  216.                              NULL, MHD_OPTION_END);
  217.                              
  218.   if (NULL == daemon) {return 1;}
  219.  
  220.   (void) getchar ();
  221.  
  222.   MHD_stop_daemon (daemon);
  223.  
  224.   return 0;
  225. }
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement
Public Pastes
Advertisement
We use cookies for various purposes including analytics. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy.  OK, I Understand
Not a member of Pastebin yet?
Sign Up, it unlocks many cool features!