1 /*
2 * lws-minimal-http-server-multivhost
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 from the subdirectory
12 * "./mount-origin" of the directory it was started in.
13 * You can change that by changing mount.origin below.
14 */
15
16 #include <libwebsockets.h>
17 #include <string.h>
18 #include <signal.h>
19
20 static int interrupted;
21
22 static const struct lws_http_mount mount_localhost1 = {
23 /* .mount_next */ NULL, /* linked-list "next" */
24 /* .mountpoint */ "/", /* mountpoint URL */
25 /* .origin */ "./mount-origin-localhost1",
26 /* .def */ "index.html", /* default filename */
27 /* .protocol */ NULL,
28 /* .cgienv */ NULL,
29 /* .extra_mimetypes */ NULL,
30 /* .interpret */ NULL,
31 /* .cgi_timeout */ 0,
32 /* .cache_max_age */ 0,
33 /* .auth_mask */ 0,
34 /* .cache_reusable */ 0,
35 /* .cache_revalidate */ 0,
36 /* .cache_intermediaries */ 0,
37 /* .origin_protocol */ LWSMPRO_FILE, /* files in a dir */
38 /* .mountpoint_len */ 1, /* char count */
39 /* .basic_auth_login_file */ NULL,
40 }, mount_localhost2 = {
41 /* .mount_next */ NULL, /* linked-list "next" */
42 /* .mountpoint */ "/", /* mountpoint URL */
43 /* .origin */ "./mount-origin-localhost2",
44 /* .def */ "index.html", /* default filename */
45 /* .protocol */ NULL,
46 /* .cgienv */ NULL,
47 /* .extra_mimetypes */ NULL,
48 /* .interpret */ NULL,
49 /* .cgi_timeout */ 0,
50 /* .cache_max_age */ 0,
51 /* .auth_mask */ 0,
52 /* .cache_reusable */ 0,
53 /* .cache_revalidate */ 0,
54 /* .cache_intermediaries */ 0,
55 /* .origin_protocol */ LWSMPRO_FILE, /* files in a dir */
56 /* .mountpoint_len */ 1, /* char count */
57 /* .basic_auth_login_file */ NULL,
58 }, mount_localhost3 = {
59 /* .mount_next */ NULL, /* linked-list "next" */
60 /* .mountpoint */ "/", /* mountpoint URL */
61 /* .origin */ "./mount-origin-localhost3",
62 /* .def */ "index.html", /* default filename */
63 /* .protocol */ NULL,
64 /* .cgienv */ NULL,
65 /* .extra_mimetypes */ NULL,
66 /* .interpret */ NULL,
67 /* .cgi_timeout */ 0,
68 /* .cache_max_age */ 0,
69 /* .auth_mask */ 0,
70 /* .cache_reusable */ 0,
71 /* .cache_revalidate */ 0,
72 /* .cache_intermediaries */ 0,
73 /* .origin_protocol */ LWSMPRO_FILE, /* files in a dir */
74 /* .mountpoint_len */ 1, /* char count */
75 /* .basic_auth_login_file */ NULL,
76 };
77
sigint_handler(int sig)78 void sigint_handler(int sig)
79 {
80 interrupted = 1;
81 }
82
vh_destruction_notification(struct lws_vhost * vh,void * arg)83 void vh_destruction_notification(struct lws_vhost *vh, void *arg)
84 {
85 lwsl_user("%s: called, arg: %p\n", __func__, arg);
86 }
87
main(int argc,const char ** argv)88 int main(int argc, const char **argv)
89 {
90 struct lws_context_creation_info info;
91 struct lws_context *context;
92 struct lws_vhost *new_vhost;
93 const char *p;
94 int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
95 /* for LLL_ verbosity above NOTICE to be built into lws,
96 * lws must have been configured and built with
97 * -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
98 /* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
99 /* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
100 /* | LLL_DEBUG */;
101
102 if ((p = lws_cmdline_option(argc, argv, "-d")))
103 logs = atoi(p);
104
105 lws_set_log_level(logs, NULL);
106 lwsl_user("LWS minimal http server-multivhost | visit http://localhost:7681 / 7682\n");
107
108 signal(SIGINT, sigint_handler);
109
110 memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
111 info.options = LWS_SERVER_OPTION_EXPLICIT_VHOSTS |
112 LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE;
113
114 /*
115 * Because of LWS_SERVER_OPTION_EXPLICIT_VHOSTS, this only creates
116 * the context and no longer creates a default vhost
117 */
118 context = lws_create_context(&info);
119 if (!context) {
120 lwsl_err("lws init failed\n");
121 return 1;
122 }
123
124 /* it's our job now to create the vhosts we want:
125 *
126 * - "localhost1" listen on 7681 and serve ./mount-origin-localhost1/
127 * - "localhost2" listen on 7682 and serve ./mount-origin-localhost2/
128 * - "localhost3" share 7682 and serve ./mount-origin-localhost3/
129 *
130 * Note lws supports dynamic vhost creation and destruction at runtime.
131 * When using multi-vhost with your own protocols, you must provide a
132 * pvo for each vhost naming each protocol you want enabled on it.
133 * minimal-ws-server-threads demonstrates how to provide pvos.
134 */
135
136 info.port = 7681;
137 info.mounts = &mount_localhost1;
138 info.error_document_404 = "/404.html";
139 info.vhost_name = "localhost1";
140
141 if (!lws_create_vhost(context, &info)) {
142 lwsl_err("Failed to create first vhost\n");
143 goto bail;
144 }
145
146 info.port = 7682;
147 info.mounts = &mount_localhost2;
148 info.error_document_404 = "/404.html";
149 info.vhost_name = "localhost2";
150
151 if (!lws_cmdline_option(argc, argv, "--kill-7682")) {
152
153 if (!lws_create_vhost(context, &info)) {
154 lwsl_err("Failed to create second vhost\n");
155 goto bail;
156 }
157 }
158
159 /* a second vhost listens on port 7682 */
160 info.mounts = &mount_localhost3;
161 info.error_document_404 = "/404.html";
162 info.vhost_name = "localhost3";
163 info.finalize = vh_destruction_notification;
164 info.finalize_arg = NULL;
165
166 new_vhost = lws_create_vhost(context, &info);
167 if (!new_vhost) {
168 lwsl_err("Failed to create third vhost\n");
169 goto bail;
170 }
171
172 if (lws_cmdline_option(argc, argv, "--kill-7682"))
173 lws_vhost_destroy(new_vhost);
174
175 if (lws_cmdline_option(argc, argv, "--die-after-vhost")) {
176 lwsl_warn("bailing after creating vhosts\n");
177 goto bail;
178 }
179
180 while (n >= 0 && !interrupted)
181 n = lws_service(context, 0);
182
183 bail:
184 lws_context_destroy(context);
185
186 return 0;
187 }
188