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/*
* lws-minimal-ws-server-timer
*
* Written in 2010-2019 by Andy Green <andy@warmcat.com>
*
* This file is made available under the Creative Commons CC0 1.0
* Universal Public Domain Dedication.
*
* This demonstrates the most minimal http server you can make with lws,
* with an added websocket chat server.
*
* To keep it simple, it serves stuff in the subdirectory "./mount-origin" of
* the directory it was started in.
* You can change that by changing mount.origin.
*/
#include <libwebsockets.h>
#include <string.h>
#include <signal.h>
static int
callback_protocol(struct lws *wsi, enum lws_callback_reasons reason,
void *user, void *in, size_t len)
{
switch (reason) {
case LWS_CALLBACK_ESTABLISHED:
lwsl_user("LWS_CALLBACK_ESTABLISHED\n");
lws_set_timer_usecs(wsi, 20 * LWS_USEC_PER_SEC);
lws_set_timeout(wsi, 1, 60);
break;
case LWS_CALLBACK_TIMER:
lwsl_user("LWS_CALLBACK_TIMER\n");
lws_set_timer_usecs(wsi, 20 * LWS_USEC_PER_SEC);
lws_set_timeout(wsi, 1, 60);
break;
case LWS_CALLBACK_CLOSED:
lwsl_user("LWS_CALLBACK_CLOSED\n");
break;
default:
break;
}
return 0;
}
static struct lws_protocols protocols[] = {
{ "http", lws_callback_http_dummy, 0, 0, 0, NULL, 0 },
{ "timer", callback_protocol, 0, 0, 0, NULL, 0 },
LWS_PROTOCOL_LIST_TERM
};
static const lws_retry_bo_t retry = {
.secs_since_valid_ping = 3,
.secs_since_valid_hangup = 10,
};
static int interrupted;
static const struct lws_http_mount mount = {
/* .mount_next */ NULL, /* linked-list "next" */
/* .mountpoint */ "/", /* mountpoint URL */
/* .origin */ "./mount-origin", /* serve from dir */
/* .def */ "index.html", /* default filename */
/* .protocol */ NULL,
/* .cgienv */ NULL,
/* .extra_mimetypes */ NULL,
/* .interpret */ NULL,
/* .cgi_timeout */ 0,
/* .cache_max_age */ 0,
/* .auth_mask */ 0,
/* .cache_reusable */ 0,
/* .cache_revalidate */ 0,
/* .cache_intermediaries */ 0,
/* .origin_protocol */ LWSMPRO_FILE, /* files in a dir */
/* .mountpoint_len */ 1, /* char count */
/* .basic_auth_login_file */ NULL,
};
void sigint_handler(int sig)
{
interrupted = 1;
}
int main(int argc, const char **argv)
{
struct lws_context_creation_info info;
struct lws_context *context;
const char *p;
int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
/* for LLL_ verbosity above NOTICE to be built into lws,
* lws must have been configured and built with
* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
/* | LLL_DEBUG */;
signal(SIGINT, sigint_handler);
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS minimal ws server | visit http://localhost:7681 (-s = use TLS / https)\n");
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
info.port = 7681;
info.mounts = &mount;
info.protocols = protocols;
info.vhost_name = "localhost";
info.options =
LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE;
#if defined(LWS_WITH_TLS)
if (lws_cmdline_option(argc, argv, "-s")) {
lwsl_user("Server using TLS\n");
info.options |= LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
info.ssl_cert_filepath = "localhost-100y.cert";
info.ssl_private_key_filepath = "localhost-100y.key";
}
#endif
if (lws_cmdline_option(argc, argv, "-h"))
info.options |= LWS_SERVER_OPTION_VHOST_UPG_STRICT_HOST_CHECK;
if (lws_cmdline_option(argc, argv, "-v"))
info.retry_and_idle_policy = &retry;
context = lws_create_context(&info);
if (!context) {
lwsl_err("lws init failed\n");
return 1;
}
while (n >= 0 && !interrupted)
n = lws_service(context, 0);
lws_context_destroy(context);
return 0;
}
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