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
27 static struct lws_context *context;
28
29 static 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
44 static 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
signal_cb(void * handle,int signum)120 void 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
sigint_handler(int sig)135 void sigint_handler(int sig)
136 {
137 signal_cb(NULL, sig);
138 }
139
main(int argc,const char ** argv)140 int 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