59 lines
2.0 KiB
C

#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 int event_handler(struct mg_event *event) {
char post_data[1024], input1[sizeof(post_data)], input2[sizeof(post_data)];
int post_data_len;
if (event->type == MG_REQUEST_BEGIN) {
if (!strcmp(event->request_info->uri, "/handle_post_request")) {
// User has submitted a form, show submitted data and a variable value
post_data_len = mg_read(event->conn, post_data, sizeof(post_data));
// Parse form data. input1 and input2 are guaranteed to be NUL-terminated
mg_get_var(post_data, post_data_len, "input_1", input1, sizeof(input1));
mg_get_var(post_data, post_data_len, "input_2", input2, sizeof(input2));
// Send reply to the client, showing submitted form values.
mg_printf(event->conn, "HTTP/1.0 200 OK\r\n"
"Content-Type: text/plain\r\n\r\n"
"Submitted data: [%.*s]\n"
"Submitted data length: %d bytes\n"
"input_1: [%s]\n"
"input_2: [%s]\n",
post_data_len, post_data, post_data_len, input1, input2);
} else {
// Show HTML form.
mg_printf(event->conn, "HTTP/1.0 200 OK\r\n"
"Content-Length: %d\r\n"
"Content-Type: text/html\r\n\r\n%s",
(int) strlen(html_form), html_form);
}
return 1; // Mark event as processed
}
// All other events are left not processed
return 0;
}
int main(void) {
struct mg_context *ctx;
const char *options[] = {"listening_ports", "8080", NULL};
ctx = mg_start(options, &event_handler, NULL);
getchar(); // Wait until user hits "enter"
mg_stop(ctx);
return 0;
}