1/*
2 * lws-minimal-ws-broker
3 *
4 * Written in 2010-2019 by Andy Green <andy@warmcat.com>
5 *
6 * This file is made available under the Creative Commons CC0 1.0
7 * Universal Public Domain Dedication.
8 *
9 * This demonstrates the most minimal http server you can make with lws,
10 * with an added publish / broker / subscribe ws server.
11 *
12 * To keep it simple, it serves stuff in the subdirectory "./mount-origin" of
13 * the directory it was started in.
14 * You can change that by changing mount.origin.
15 */
16
17#include <libwebsockets.h>
18#include <string.h>
19#include <signal.h>
20
21#define LWS_PLUGIN_STATIC
22#include "protocol_lws_minimal.c"
23
24static struct lws_protocols protocols[] = {
25	{ "http", lws_callback_http_dummy, 0, 0, 0, NULL, 0 },
26	LWS_PLUGIN_PROTOCOL_MINIMAL,
27	LWS_PROTOCOL_LIST_TERM
28};
29
30static int interrupted;
31
32static const struct lws_http_mount mount = {
33	/* .mount_next */		NULL,		/* linked-list "next" */
34	/* .mountpoint */		"/",		/* mountpoint URL */
35	/* .origin */			"./mount-origin", /* serve from dir */
36	/* .def */			"index.html",	/* default filename */
37	/* .protocol */			NULL,
38	/* .cgienv */			NULL,
39	/* .extra_mimetypes */		NULL,
40	/* .interpret */		NULL,
41	/* .cgi_timeout */		0,
42	/* .cache_max_age */		0,
43	/* .auth_mask */		0,
44	/* .cache_reusable */		0,
45	/* .cache_revalidate */		0,
46	/* .cache_intermediaries */	0,
47	/* .origin_protocol */		LWSMPRO_FILE,	/* files in a dir */
48	/* .mountpoint_len */		1,		/* char count */
49	/* .basic_auth_login_file */	NULL,
50};
51
52void sigint_handler(int sig)
53{
54	interrupted = 1;
55}
56
57int main(int argc, const char **argv)
58{
59	struct lws_context_creation_info info;
60	struct lws_context *context;
61	const char *p;
62	int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
63			/* for LLL_ verbosity above NOTICE to be built into lws,
64			 * lws must have been configured and built with
65			 * -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
66			/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
67			/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
68			/* | LLL_DEBUG */;
69
70	signal(SIGINT, sigint_handler);
71
72	if ((p = lws_cmdline_option(argc, argv, "-d")))
73		logs = atoi(p);
74
75	lws_set_log_level(logs, NULL);
76	lwsl_user("LWS minimal ws broker | visit http://localhost:7681\n");
77
78	memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
79	info.port = 7681;
80	info.mounts = &mount;
81	info.protocols = protocols;
82	info.options =
83		LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE;
84
85	context = lws_create_context(&info);
86	if (!context) {
87		lwsl_err("lws init failed\n");
88		return 1;
89	}
90
91	while (n >= 0 && !interrupted)
92		n = lws_service(context, 0);
93
94	lws_context_destroy(context);
95
96	return 0;
97}
98