| #include <stdio.h> |
| #include <string.h> |
| #include "civetweb.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 begin_request_handler(struct mg_connection *conn) |
| { |
| const struct mg_request_info *ri = mg_get_request_info(conn); |
| char post_data[1024], input1[sizeof(post_data)], input2[sizeof(post_data)]; |
| int post_data_len; |
| |
| if (!strcmp(ri->uri, "/handle_post_request")) { |
| // User has submitted a form, show submitted data and a variable value |
| post_data_len = mg_read(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(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(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 request as processed |
| } |
| |
| int main(void) |
| { |
| struct mg_context *ctx; |
| const char *options[] = {"listening_ports", "8080", NULL}; |
| struct mg_callbacks callbacks; |
| |
| memset(&callbacks, 0, sizeof(callbacks)); |
| callbacks.begin_request = begin_request_handler; |
| ctx = mg_start(&callbacks, NULL, options); |
| getchar(); // Wait until user hits "enter" |
| mg_stop(ctx); |
| |
| return 0; |
| } |
