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91 lines
3.4 KiB
C
91 lines
3.4 KiB
C
// Copyright (c) 2020 Cesanta Software Limited
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// All rights reserved
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#include "certs.h"
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#include "mongoose.h"
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static const char *s_web_dir = "/";
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static const char *s_http_addr = "http://0.0.0.0:8000";
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static const char *s_https_addr = "https://0.0.0.0:8443";
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static time_t s_boot_timestamp = 0;
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static struct mg_connection *s_sntp_conn = NULL;
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// Event handler for the listening HTTP/HTTPS connection.
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static void wcb(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
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if (ev == MG_EV_ACCEPT && fn_data != NULL) {
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struct mg_tls_opts opts = {.cert = s_ssl_cert, .certkey = s_ssl_key};
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mg_tls_init(c, &opts);
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} else if (ev == MG_EV_HTTP_MSG) {
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struct mg_http_message *hm = ev_data;
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MG_INFO(("%.*s %.*s %ld", (int) hm->method.len, hm->method.ptr,
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(int) hm->uri.len, hm->uri.ptr, (long) hm->body.len));
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if (mg_http_match_uri(hm, "/api/#")) { // REST API requests
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// Print some statistics about currently established connections
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mg_printf(c, "HTTP/1.1 200 OK\r\nTransfer-Encoding: chunked\r\n\r\n");
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mg_http_printf_chunk(c, "ID PROTO TYPE LOCAL REMOTE\n");
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for (struct mg_connection *t = c->mgr->conns; t != NULL; t = t->next) {
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char loc[40], rem[40];
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mg_http_printf_chunk(c, "%-3lu %4s %s %-15s %s\n", t->id,
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t->is_udp ? "UDP" : "TCP",
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t->is_listening ? "LISTENING"
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: t->is_accepted ? "ACCEPTED "
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: "CONNECTED",
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mg_straddr(&t->loc, loc, sizeof(loc)),
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mg_straddr(&t->rem, rem, sizeof(rem)));
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}
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mg_http_printf_chunk(c, ""); // Don't forget the last empty chunk
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} else {
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struct mg_http_serve_opts opts = {.root_dir = s_web_dir}; // Serve
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mg_http_serve_dir(c, hm, &opts); // static files
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}
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} else if (ev == MG_EV_OPEN) {
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c->is_hexdumping = 1;
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}
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}
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// We have no valid system time(), and we need it for TLS. Implement it
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time_t time(time_t *tp) {
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time_t t = s_boot_timestamp + k_uptime_get() / 1000;
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if (tp != NULL) *tp = t;
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return t;
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}
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// SNTP callback. Modifies s_boot_timestamp, to make time() correct
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static void sfn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
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if (ev == MG_EV_SNTP_TIME) {
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int64_t t = *(int64_t *) ev_data;
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MG_INFO(("Got SNTP time: %lld ms from epoch", t));
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s_boot_timestamp = (time_t) ((t - mg_millis()) / 1000);
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} else if (ev == MG_EV_CLOSE) {
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s_sntp_conn = NULL;
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}
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}
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// Periodic timer syncs time via SNTP
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static void timer_fn(void *arg) {
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struct mg_mgr *mgr = (struct mg_mgr *) arg;
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if (s_sntp_conn == NULL) s_sntp_conn = mg_sntp_connect(mgr, NULL, sfn, NULL);
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if (s_boot_timestamp < 9999) mg_sntp_request(s_sntp_conn);
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}
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int main(int argc, char *argv[]) {
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struct mg_mgr mgr;
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mg_log_set(MG_LL_DEBUG);
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mg_mgr_init(&mgr);
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mg_http_listen(&mgr, s_http_addr, wcb, NULL);
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mg_http_listen(&mgr, s_https_addr, wcb, &mgr);
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mg_timer_add(&mgr, 5000, MG_TIMER_REPEAT | MG_TIMER_RUN_NOW, timer_fn, &mgr);
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// Start infinite event loop
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MG_INFO(("Mongoose version : v%s", MG_VERSION));
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MG_INFO(("Listening on : %s", s_http_addr));
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MG_INFO(("Listening on : %s", s_https_addr));
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MG_INFO(("Web root : [%s]", s_web_dir));
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for (;;) mg_mgr_poll(&mgr, 1000);
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mg_mgr_free(&mgr);
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return 0;
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}
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