1/*
2 * lws-minimal-ws-server
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 *
11 * To keep it simple, it serves stuff in the subdirectory "./mount-origin" of
12 * the directory it was started in.
13 * You can change that by changing mount.origin.
14 */
15
16#include <libwebsockets.h>
17#include <string.h>
18#include <signal.h>
19
20#define LWS_PLUGIN_STATIC
21#include "protocol_lws_minimal.c"
22
23static struct lws_protocols protocols[] = {
24	{ "http", lws_callback_http_dummy, 0, 0, 0, NULL, 0 },
25	LWS_PLUGIN_PROTOCOL_MINIMAL,
26	LWS_PROTOCOL_LIST_TERM
27};
28
29static int interrupted;
30
31static const struct lws_http_mount mount = {
32	/* .mount_next */		NULL,		/* linked-list "next" */
33	/* .mountpoint */		"/",		/* mountpoint URL */
34	/* .origin */			"./mount-origin",  /* serve from dir */
35	/* .def */			"index.html",	/* default filename */
36	/* .protocol */			NULL,
37	/* .cgienv */			NULL,
38	/* .extra_mimetypes */		NULL,
39	/* .interpret */		NULL,
40	/* .cgi_timeout */		0,
41	/* .cache_max_age */		0,
42	/* .auth_mask */		0,
43	/* .cache_reusable */		0,
44	/* .cache_revalidate */		0,
45	/* .cache_intermediaries */	0,
46	/* .origin_protocol */		LWSMPRO_FILE,	/* files in a dir */
47	/* .mountpoint_len */		1,		/* char count */
48	/* .basic_auth_login_file */	NULL,
49};
50
51static const struct lws_extension extensions[] = {
52	{
53		"permessage-deflate",
54		lws_extension_callback_pm_deflate,
55		"permessage-deflate"
56		 "; client_no_context_takeover"
57		 "; client_max_window_bits"
58	},
59	{ NULL, NULL, NULL /* terminator */ }
60};
61
62void sigint_handler(int sig)
63{
64	interrupted = 1;
65}
66
67int main(int argc, const char **argv)
68{
69	struct lws_context_creation_info info;
70	struct lws_context *context;
71	const char *p;
72	int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
73			/* for LLL_ verbosity above NOTICE to be built into lws,
74			 * lws must have been configured and built with
75			 * -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
76			/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
77			/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
78			/* | LLL_DEBUG */;
79
80	signal(SIGINT, sigint_handler);
81
82	if ((p = lws_cmdline_option(argc, argv, "-d")))
83		logs = atoi(p);
84
85	lws_set_log_level(logs, NULL);
86	lwsl_user("LWS minimal ws server + permessage-deflate | visit http://localhost:7681\n");
87
88	memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
89	info.port = 7681;
90	info.mounts = &mount;
91	info.protocols = protocols;
92	info.extensions = extensions;
93	info.options =
94		LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE;
95
96	context = lws_create_context(&info);
97	if (!context) {
98		lwsl_err("lws init failed\n");
99		return 1;
100	}
101
102	while (n >= 0 && !interrupted)
103		n = lws_service(context, 0);
104
105	lws_context_destroy(context);
106
107	return 0;
108}
109