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59 lines
2.1 KiB
C
59 lines
2.1 KiB
C
#include <stdio.h>
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#include <string.h>
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#include "civetweb.h"
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static const char *html_form =
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"<html><body>POST example."
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"<form method=\"POST\" action=\"/handle_post_request\">"
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"Input 1: <input type=\"text\" name=\"input_1\" /> <br/>"
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"Input 2: <input type=\"text\" name=\"input_2\" /> <br/>"
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"<input type=\"submit\" />"
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"</form></body></html>";
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static int begin_request_handler(struct httplib_connection *conn)
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{
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const struct httplib_request_info *ri = httplib_get_request_info(conn);
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char post_data[1024], input1[sizeof(post_data)], input2[sizeof(post_data)];
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int post_data_len;
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if (!strcmp(ri->uri, "/handle_post_request")) {
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// User has submitted a form, show submitted data and a variable value
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post_data_len = httplib_read(conn, post_data, sizeof(post_data));
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// Parse form data. input1 and input2 are guaranteed to be NUL-terminated
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httplib_get_var(post_data, post_data_len, "input_1", input1, sizeof(input1));
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httplib_get_var(post_data, post_data_len, "input_2", input2, sizeof(input2));
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// Send reply to the client, showing submitted form values.
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httplib_printf(conn, "HTTP/1.0 200 OK\r\n"
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"Content-Type: text/plain\r\n\r\n"
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"Submitted data: [%.*s]\n"
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"Submitted data length: %d bytes\n"
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"input_1: [%s]\n"
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"input_2: [%s]\n",
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post_data_len, post_data, post_data_len, input1, input2);
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} else {
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// Show HTML form.
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httplib_printf(conn, "HTTP/1.0 200 OK\r\n"
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"Content-Length: %d\r\n"
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"Content-Type: text/html\r\n\r\n%s",
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(int) strlen(html_form), html_form);
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}
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return 1; // Mark request as processed
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}
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int main(void)
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{
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struct httplib_context *ctx;
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const char *options[] = {"listening_ports", "8080", NULL};
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struct httplib_callbacks callbacks;
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memset(&callbacks, 0, sizeof(callbacks));
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callbacks.begin_request = begin_request_handler;
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ctx = httplib_start(&callbacks, NULL, options);
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getchar(); // Wait until user hits "enter"
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httplib_stop(ctx);
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return 0;
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}
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