1/*
2 * lws-minimal-http-server-eventlib
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 a minimal http[s] server that can work with any of the
10 * supported event loop backends, or the default poll() one.
11 *
12 * To keep it simple, it serves stuff from the subdirectory
13 * "./mount-origin" of the directory it was started in.
14 * You can change that by changing mount.origin below.
15 */
16
17#include <libwebsockets.h>
18#include <string.h>
19#include <signal.h>
20
21#define LWS_PLUGIN_STATIC
22#include "../../../plugins/protocol_lws_mirror.c"
23#include "../../../plugins/protocol_lws_status.c"
24#include "../../../plugins/protocol_dumb_increment.c"
25#include "../../../plugins/protocol_post_demo.c"
26
27static struct lws_context *context;
28
29static struct lws_protocols protocols[] = {
30	/* first protocol must always be HTTP handler */
31
32	{ "http-only", lws_callback_http_dummy, 0, 0, 0, NULL, 0 },
33	LWS_PLUGIN_PROTOCOL_DUMB_INCREMENT,
34	LWS_PLUGIN_PROTOCOL_MIRROR,
35	LWS_PLUGIN_PROTOCOL_LWS_STATUS,
36	LWS_PLUGIN_PROTOCOL_POST_DEMO,
37	LWS_PROTOCOL_LIST_TERM
38};
39
40/*
41 * mount handlers for sections of the URL space
42 */
43
44static const struct lws_http_mount mount_ziptest_uncomm = {
45	NULL,			/* linked-list pointer to next*/
46	"/uncommziptest",		/* mountpoint in URL namespace on this vhost */
47	"./mount-origin/candide-uncompressed.zip",	/* handler */
48	NULL,	/* default filename if none given */
49	NULL,
50	NULL,
51	NULL,
52	NULL,
53	0,
54	0,
55	0,
56	0,
57	0,
58	0,
59	LWSMPRO_FILE,	/* origin points to a callback */
60	14,			/* strlen("/ziptest"), ie length of the mountpoint */
61	NULL,
62}, mount_ziptest = {
63	(struct lws_http_mount *)&mount_ziptest_uncomm,			/* linked-list pointer to next*/
64	"/ziptest",		/* mountpoint in URL namespace on this vhost */
65	"./mount-origin/candide.zip",	/* handler */
66	NULL,	/* default filename if none given */
67	NULL,
68	NULL,
69	NULL,
70	NULL,
71	0,
72	0,
73	0,
74	0,
75	0,
76	0,
77	LWSMPRO_FILE,	/* origin points to a callback */
78	8,			/* strlen("/ziptest"), ie length of the mountpoint */
79	NULL,
80
81}, mount_post = {
82	(struct lws_http_mount *)&mount_ziptest, /* linked-list pointer to next*/
83	"/formtest",		/* mountpoint in URL namespace on this vhost */
84	"protocol-post-demo",	/* handler */
85	NULL,	/* default filename if none given */
86	NULL,
87	NULL,
88	NULL,
89	NULL,
90	0,
91	0,
92	0,
93	0,
94	0,
95	0,
96	LWSMPRO_CALLBACK,	/* origin points to a callback */
97	9,			/* strlen("/formtest"), ie length of the mountpoint */
98	NULL,
99
100}, mount = {
101	/* .mount_next */		&mount_post,	/* linked-list "next" */
102	/* .mountpoint */		"/",		/* mountpoint URL */
103	/* .origin */			"./mount-origin", /* serve from dir */
104	/* .def */			"test.html",	/* default filename */
105	/* .protocol */			NULL,
106	/* .cgienv */			NULL,
107	/* .extra_mimetypes */		NULL,
108	/* .interpret */		NULL,
109	/* .cgi_timeout */		0,
110	/* .cache_max_age */		0,
111	/* .auth_mask */		0,
112	/* .cache_reusable */		0,
113	/* .cache_revalidate */		0,
114	/* .cache_intermediaries */	0,
115	/* .origin_protocol */		LWSMPRO_FILE,	/* files in a dir */
116	/* .mountpoint_len */		1,		/* char count */
117	/* .basic_auth_login_file */	NULL,
118};
119
120void signal_cb(void *handle, int signum)
121{
122	lwsl_err("%s: signal %d\n", __func__, signum);
123
124	switch (signum) {
125	case SIGTERM:
126	case SIGINT:
127		break;
128	default:
129
130		break;
131	}
132	lws_context_destroy(context);
133}
134
135void sigint_handler(int sig)
136{
137	signal_cb(NULL, sig);
138}
139
140int main(int argc, const char **argv)
141{
142	struct lws_context_creation_info info;
143	const char *p;
144	int logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
145			/* for LLL_ verbosity above NOTICE to be built into lws,
146			 * lws must have been configured and built with
147			 * -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
148			/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
149			/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
150			/* | LLL_DEBUG */;
151
152	if ((p = lws_cmdline_option(argc, argv, "-d")))
153		logs = atoi(p);
154
155	lws_set_log_level(logs, NULL);
156	lwsl_user("LWS minimal http server eventlib | visit http://localhost:7681\n");
157	lwsl_user(" [-s (ssl)] [--uv (libuv)] [--ev (libev)] [--event (libevent)]\n");
158
159	memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
160	info.port = 7681;
161	info.mounts = &mount;
162	info.error_document_404 = "/404.html";
163	info.pcontext = &context;
164	info.protocols = protocols;
165	info.signal_cb = signal_cb;
166	info.options =
167		LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE;
168
169	if (lws_cmdline_option(argc, argv, "-s")) {
170		info.options |= LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
171#if defined(LWS_WITH_TLS)
172		info.ssl_cert_filepath = "localhost-100y.cert";
173		info.ssl_private_key_filepath = "localhost-100y.key";
174#endif
175	}
176
177	if (lws_cmdline_option(argc, argv, "--uv"))
178		info.options |= LWS_SERVER_OPTION_LIBUV;
179	else
180		if (lws_cmdline_option(argc, argv, "--event"))
181			info.options |= LWS_SERVER_OPTION_LIBEVENT;
182		else
183			if (lws_cmdline_option(argc, argv, "--ev"))
184				info.options |= LWS_SERVER_OPTION_LIBEV;
185			else
186				if (lws_cmdline_option(argc, argv, "--glib"))
187					info.options |= LWS_SERVER_OPTION_GLIB;
188				else
189					signal(SIGINT, sigint_handler);
190
191	context = lws_create_context(&info);
192	if (!context) {
193		lwsl_err("lws init failed\n");
194		return 1;
195	}
196
197	while (!lws_service(context, 0))
198		;
199
200	lwsl_info("calling external context destroy\n");
201	lws_context_destroy(context);
202
203	return 0;
204}
205