rc_tagdetect_client: form_submit.c Source File

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 #include <stdio.h>
 #include <string.h>
 #include "mongoose.h"
 
 static const char *html_form =
   "<html><body>POST example."
   "<form method=\"POST\" action=\"/handle_post_request\">"
   "Input 1: <input type=\"text\" name=\"input_1\" /> <br/>"
   "Input 2: <input type=\"text\" name=\"input_2\" /> <br/>"
   "<input type=\"submit\" />"
   "</form></body></html>";
 
 static void send_reply(struct mg_connection *conn) {
   char var1[500], var2[500];
 
   if (strcmp(conn->uri, "/handle_post_request") == 0) {
     // User has submitted a form, show submitted data and a variable value
     // Parse form data. var1 and var2 are guaranteed to be NUL-terminated
     mg_get_var(conn, "input_1", var1, sizeof(var1));
     mg_get_var(conn, "input_2", var2, sizeof(var2));
 
     // Send reply to the client, showing submitted form values.
     // POST data is in conn->content, data length is in conn->content_len
     mg_send_header(conn, "Content-Type", "text/plain");
     mg_printf_data(conn,
                    "Submitted data: [%.*s]\n"
                    "Submitted data length: %d bytes\n"
                    "input_1: [%s]\n"
                    "input_2: [%s]\n",
                    conn->content_len, conn->content,
                    conn->content_len, var1, var2);
   } else {
     // Show HTML form.
     mg_send_data(conn, html_form, strlen(html_form));
   }
 }
 
 static int ev_handler(struct mg_connection *conn, enum mg_event ev) {
   if (ev == MG_REQUEST) {
     send_reply(conn);
     return MG_TRUE;
   } else if (ev == MG_AUTH) {
     return MG_TRUE;
   } else {
     return MG_FALSE;
   }
 }
 
 int main(void) {
   struct mg_server *server = mg_create_server(NULL, ev_handler);
 
   mg_set_option(server, "listening_port", "8080");
 
   printf("Starting on port %s\n", mg_get_option(server, "listening_port"));
   for (;;) {
     mg_poll_server(server, 1000);
   }
 
   mg_destroy_server(&server);
 
   return 0;
 }