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 static struct lws_context *context;
22
23 static const struct lws_http_mount mount = {
24 /* .mount_next */ NULL, /* linked-list "next" */
25 /* .mountpoint */ "/", /* mountpoint URL */
26 /* .origin */ "./mount-origin", /* serve from dir */
27 /* .def */ "index.html", /* default filename */
28 /* .protocol */ NULL,
29 /* .cgienv */ NULL,
30 /* .extra_mimetypes */ NULL,
31 /* .interpret */ NULL,
32 /* .cgi_timeout */ 0,
33 /* .cache_max_age */ 0,
34 /* .auth_mask */ 0,
35 /* .cache_reusable */ 0,
36 /* .cache_revalidate */ 0,
37 /* .cache_intermediaries */ 0,
38 /* .origin_protocol */ LWSMPRO_FILE, /* files in a dir */
39 /* .mountpoint_len */ 1, /* char count */
40 /* .basic_auth_login_file */ NULL,
41 };
42
signal_cb(void * handle,int signum)43 void signal_cb(void *handle, int signum)
44 {
45 switch (signum) {
46 case SIGTERM:
47 case SIGINT:
48 break;
49 default:
50 lwsl_err("%s: signal %d\n", __func__, signum);
51 break;
52 }
53 lws_context_destroy(context);
54 }
55
sigint_handler(int sig)56 void sigint_handler(int sig)
57 {
58 signal_cb(NULL, sig);
59 }
60
main(int argc,const char ** argv)61 int main(int argc, const char **argv)
62 {
63 struct lws_context_creation_info info;
64 const char *p;
65 int logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
66 /* for LLL_ verbosity above NOTICE to be built into lws,
67 * lws must have been configured and built with
68 * -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
69 /* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
70 /* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
71 /* | LLL_DEBUG */;
72
73 if ((p = lws_cmdline_option(argc, argv, "-d")))
74 logs = atoi(p);
75
76 lws_set_log_level(logs, NULL);
77 lwsl_user("LWS minimal http server eventlib | visit http://localhost:7681\n");
78 lwsl_user(" [-s (ssl)] [--uv (libuv)] [--ev (libev)] [--event (libevent)]\n");
79
80 memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
81 info.port = 7681;
82 info.mounts = &mount;
83 info.error_document_404 = "/404.html";
84 info.pcontext = &context;
85 info.signal_cb = signal_cb;
86 info.options =
87 LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE;
88
89 #if defined(LWS_WITH_TLS)
90 if (lws_cmdline_option(argc, argv, "-s")) {
91 info.options |= LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
92 info.ssl_cert_filepath = "localhost-100y.cert";
93 info.ssl_private_key_filepath = "localhost-100y.key";
94 }
95 #endif
96
97 if (lws_cmdline_option(argc, argv, "--uv"))
98 info.options |= LWS_SERVER_OPTION_LIBUV;
99 else
100 if (lws_cmdline_option(argc, argv, "--event"))
101 info.options |= LWS_SERVER_OPTION_LIBEVENT;
102 else
103 if (lws_cmdline_option(argc, argv, "--ev"))
104 info.options |= LWS_SERVER_OPTION_LIBEV;
105 else
106 if (lws_cmdline_option(argc, argv, "--glib"))
107 info.options |= LWS_SERVER_OPTION_GLIB;
108 else
109 signal(SIGINT, sigint_handler);
110
111 context = lws_create_context(&info);
112 if (!context) {
113 lwsl_err("lws init failed\n");
114 return 1;
115 }
116
117 while (!lws_service(context, 0))
118 ;
119
120 lwsl_info("calling external context destroy\n");
121 lws_context_destroy(context);
122
123 return 0;
124 }
125