lws-vhost-destroy
[platform/upstream/libwebsockets.git] / test-server / test-server.c
index eebab29..0765cfb 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * libwebsockets-test-servet - libwebsockets test implementation
+ * libwebsockets-test-server - libwebsockets test implementation
  *
  * Copyright (C) 2010-2016 Andy Green <andy@warmcat.com>
  *
@@ -14,7 +14,7 @@
  * all without asking permission.
  *
  * The test apps are intended to be adapted for use in your code, which
- * may be proprietary.  So unlike the library itself, they are licensed
+ * may be proprietary. So unlike the library itself, they are licensed
  * Public Domain.
  */
 
@@ -29,13 +29,45 @@ struct lws_pollfd *pollfds;
 int *fd_lookup;
 int count_pollfds;
 #endif
-volatile int force_exit = 0;
+volatile int force_exit = 0, dynamic_vhost_enable = 0;
+struct lws_vhost *dynamic_vhost;
 struct lws_context *context;
 struct lws_plat_file_ops fops_plat;
 
 /* http server gets files from this path */
 #define LOCAL_RESOURCE_PATH INSTALL_DATADIR"/libwebsockets-test-server"
 char *resource_path = LOCAL_RESOURCE_PATH;
+#if defined(LWS_OPENSSL_SUPPORT) && defined(LWS_HAVE_SSL_CTX_set1_param)
+char crl_path[1024] = "";
+#endif
+
+/*
+ * This demonstrates how to use the clean protocol service separation of
+ * plugins, but with static inclusion instead of runtime dynamic loading
+ * (which requires libuv).
+ *
+ * dumb-increment doesn't use the plugin, both to demonstrate how to
+ * do the protocols directly, and because it wants libuv for a timer.
+ *
+ * Please consider using test-server-v2.0.c instead of this: it has the
+ * same functionality but
+ *
+ * 1) uses lws built-in http handling so you don't need to deal with it in
+ * your callback
+ *
+ * 2) Links with libuv and uses the plugins at runtime
+ *
+ * 3) Uses advanced lws features like mounts to bind parts of the filesystem
+ * to the served URL space
+ *
+ * Another option is lwsws, this operates like test-server-v2,0.c but is
+ * configured using JSON, do you do not need to provide any code for the
+ * serving action at all, just implement your protocols in plugins.
+ */
+
+#define LWS_PLUGIN_STATIC
+#include "../plugins/protocol_lws_mirror.c"
+#include "../plugins/protocol_lws_status.c"
 
 /* singlethreaded version --> no locks */
 
@@ -59,6 +91,9 @@ void test_server_unlock(int care)
  *
  *  lws-mirror-protocol: copies any received packet to every connection also
  *                             using this protocol, including the sender
+ *
+ *  lws-status:                        informs connected browsers of who else is
+ *                             connected.
  */
 
 enum demo_protocols {
@@ -67,7 +102,7 @@ enum demo_protocols {
 
        PROTOCOL_DUMB_INCREMENT,
        PROTOCOL_LWS_MIRROR,
-       PROTOCOL_LWS_ECHOGEN,
+       PROTOCOL_LWS_STATUS,
 
        /* always last */
        DEMO_PROTOCOL_COUNT
@@ -88,45 +123,57 @@ static struct lws_protocols protocols[] = {
                "dumb-increment-protocol",
                callback_dumb_increment,
                sizeof(struct per_session_data__dumb_increment),
-               10,
-       },
-       {
-               "lws-mirror-protocol",
-               callback_lws_mirror,
-               sizeof(struct per_session_data__lws_mirror),
-               128,
-       },
-       {
-               "lws-echogen",
-               callback_lws_echogen,
-               sizeof(struct per_session_data__echogen),
-               128,
+               10, /* rx buf size must be >= permessage-deflate rx size
+                    * dumb-increment only sends very small packets, so we set
+                    * this accordingly.  If your protocol will send bigger
+                    * things, adjust this to match */
        },
+       LWS_PLUGIN_PROTOCOL_MIRROR,
+       LWS_PLUGIN_PROTOCOL_LWS_STATUS,
        { NULL, NULL, 0, 0 } /* terminator */
 };
 
 
-/* this shows how to override the lws file operations.  You don't need
+/* this shows how to override the lws file operations. You don't need
  * to do any of this unless you have a reason (eg, want to serve
  * compressed files without decompressing the whole archive)
  */
-static lws_filefd_type
-test_server_fops_open(struct lws *wsi, const char *filename,
-                     unsigned long *filelen, int flags)
+static lws_fop_fd_t
+test_server_fops_open(const struct lws_plat_file_ops *fops,
+                    const char *vfs_path, const char *vpath,
+                    lws_fop_flags_t *flags)
 {
-       lws_filefd_type n;
+       lws_fop_fd_t fop_fd;
 
        /* call through to original platform implementation */
-       n = fops_plat.open(wsi, filename, filelen, flags);
+       fop_fd = fops_plat.open(fops, vfs_path, vpath, flags);
 
-       lwsl_notice("%s: opening %s, ret %ld, len %lu\n", __func__, filename,
-                       (long)n, *filelen);
+       if (fop_fd)
+               lwsl_info("%s: opening %s, ret %p, len %lu\n", __func__,
+                               vfs_path, fop_fd,
+                               (long)lws_vfs_get_length(fop_fd));
+       else
+               lwsl_info("%s: open %s failed\n", __func__, vfs_path);
 
-       return n;
+       return fop_fd;
 }
 
 void sighandler(int sig)
 {
+#if !defined(WIN32) && !defined(_WIN32)
+       /* because windows is too dumb to have SIGUSR1... */
+       if (sig == SIGUSR1) {
+               /*
+                * For testing, you can fire a SIGUSR1 at the test server
+                * to toggle the existence of an identical server on
+                * port + 1
+                */
+               dynamic_vhost_enable ^= 1;
+               lwsl_notice("SIGUSR1: dynamic_vhost_enable: %d\n",
+                               dynamic_vhost_enable);
+               return;
+       }
+#endif
        force_exit = 1;
        lws_cancel_service(context);
 }
@@ -153,36 +200,51 @@ static struct option options[] = {
        { "port",       required_argument,      NULL, 'p' },
        { "ssl",        no_argument,            NULL, 's' },
        { "allow-non-ssl",      no_argument,    NULL, 'a' },
-       { "interface",  required_argument,      NULL, 'i' },
-       { "closetest",  no_argument,            NULL, 'c' },
+       { "interface",  required_argument,      NULL, 'i' },
+       { "closetest",  no_argument,            NULL, 'c' },
        { "ssl-cert",  required_argument,       NULL, 'C' },
        { "ssl-key",  required_argument,        NULL, 'K' },
        { "ssl-ca",  required_argument,         NULL, 'A' },
+#if defined(LWS_OPENSSL_SUPPORT)
+       { "ssl-verify-client",  no_argument,            NULL, 'v' },
+#if defined(LWS_HAVE_SSL_CTX_set1_param)
+       { "ssl-crl",  required_argument,                NULL, 'R' },
+#endif
+#endif
        { "libev",  no_argument,                NULL, 'e' },
 #ifndef LWS_NO_DAEMONIZE
-       { "daemonize",  no_argument,            NULL, 'D' },
+       { "daemonize",  no_argument,            NULL, 'D' },
 #endif
        { "resource_path", required_argument,   NULL, 'r' },
+       { "pingpong-secs", required_argument,   NULL, 'P' },
        { NULL, 0, 0, 0 }
 };
 
 int main(int argc, char **argv)
 {
        struct lws_context_creation_info info;
+       struct lws_vhost *vhost;
        char interface_name[128] = "";
        unsigned int ms, oldms = 0;
        const char *iface = NULL;
        char cert_path[1024] = "";
        char key_path[1024] = "";
        char ca_path[1024] = "";
+       int uid = -1, gid = -1;
        int use_ssl = 0;
+       int pp_secs = 0;
        int opts = 0;
        int n = 0;
 #ifndef _WIN32
+/* LOG_PERROR is not POSIX standard, and may not be portable */
+#ifdef __sun
+       int syslog_options = LOG_PID;
+#else       
        int syslog_options = LOG_PID | LOG_PERROR;
 #endif
+#endif
 #ifndef LWS_NO_DAEMONIZE
-       int daemonize = 0;
+       int daemonize = 0;
 #endif
 
        /*
@@ -193,7 +255,7 @@ int main(int argc, char **argv)
        info.port = 7681;
 
        while (n >= 0) {
-               n = getopt_long(argc, argv, "eci:hsap:d:Dr:C:K:A:", options, NULL);
+               n = getopt_long(argc, argv, "eci:hsap:d:Dr:C:K:A:R:vu:g:P:k", options, NULL);
                if (n < 0)
                        continue;
                switch (n) {
@@ -203,16 +265,23 @@ int main(int argc, char **argv)
 #ifndef LWS_NO_DAEMONIZE
                case 'D':
                        daemonize = 1;
-                       #ifndef _WIN32
+                       #if !defined(_WIN32) && !defined(__sun)
                        syslog_options &= ~LOG_PERROR;
                        #endif
                        break;
 #endif
+               case 'u':
+                       uid = atoi(optarg);
+                       break;
+               case 'g':
+                       gid = atoi(optarg);
+                       break;
                case 'd':
                        debug_level = atoi(optarg);
                        break;
                case 's':
                        use_ssl = 1;
+                       opts |= LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
                        break;
                case 'a':
                        opts |= LWS_SERVER_OPTION_ALLOW_NON_SSL_ON_SSL_PORT;
@@ -225,6 +294,13 @@ int main(int argc, char **argv)
                        interface_name[(sizeof interface_name) - 1] = '\0';
                        iface = interface_name;
                        break;
+               case 'k':
+                       info.bind_iface = 1;
+#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
+                       info.caps[0] = CAP_NET_RAW;
+                       info.count_caps = 1;
+#endif
+                       break;
                case 'c':
                        close_testing = 1;
                        fprintf(stderr, " Close testing mode -- closes on "
@@ -236,14 +312,34 @@ int main(int argc, char **argv)
                        printf("Setting resource path to \"%s\"\n", resource_path);
                        break;
                case 'C':
-                       strncpy(cert_path, optarg, sizeof cert_path);
+                       strncpy(cert_path, optarg, sizeof(cert_path) - 1);
+                       cert_path[sizeof(cert_path) - 1] = '\0';
                        break;
                case 'K':
-                       strncpy(key_path, optarg, sizeof key_path);
+                       strncpy(key_path, optarg, sizeof(key_path) - 1);
+                       key_path[sizeof(key_path) - 1] = '\0';
                        break;
                case 'A':
-                       strncpy(ca_path, optarg, sizeof ca_path);
+                       strncpy(ca_path, optarg, sizeof(ca_path) - 1);
+                       ca_path[sizeof(ca_path) - 1] = '\0';
+                       break;
+               case 'P':
+                       pp_secs = atoi(optarg);
+                       lwsl_notice("Setting pingpong interval to %d\n", pp_secs);
+                       break;
+#if defined(LWS_OPENSSL_SUPPORT)
+               case 'v':
+                       use_ssl = 1;
+                       opts |= LWS_SERVER_OPTION_REQUIRE_VALID_OPENSSL_CLIENT_CERT;
                        break;
+
+#if defined(LWS_HAVE_SSL_CTX_set1_param)
+               case 'R':
+                       strncpy(crl_path, optarg, sizeof(crl_path) - 1);
+                       crl_path[sizeof(crl_path) - 1] = '\0';
+                       break;
+#endif
+#endif
                case 'h':
                        fprintf(stderr, "Usage: test-server "
                                        "[--port=<p>] [--ssl] "
@@ -261,11 +357,16 @@ int main(int argc, char **argv)
         */
        if (daemonize && lws_daemonize("/tmp/.lwsts-lock")) {
                fprintf(stderr, "Failed to daemonize\n");
-               return 1;
+               return 10;
        }
 #endif
 
        signal(SIGINT, sighandler);
+#if !defined(WIN32) && !defined(_WIN32)
+       /* because windows is too dumb to have SIGUSR1... */
+       /* dynamic vhost create / destroy toggle (on port + 1) */
+       signal(SIGUSR1, sighandler);
+#endif
 
 #ifndef _WIN32
        /* we will only try to log things according to our debug_level */
@@ -294,6 +395,7 @@ int main(int argc, char **argv)
        info.protocols = protocols;
        info.ssl_cert_filepath = NULL;
        info.ssl_private_key_filepath = NULL;
+       info.ws_ping_pong_interval = pp_secs;
 
        if (use_ssl) {
                if (strlen(resource_path) > sizeof(cert_path) - 32) {
@@ -316,18 +418,55 @@ int main(int argc, char **argv)
                if (ca_path[0])
                        info.ssl_ca_filepath = ca_path;
        }
-       info.gid = -1;
-       info.uid = -1;
-       info.max_http_header_pool = 1;
-       info.options = opts | LWS_SERVER_OPTION_VALIDATE_UTF8;
+       info.gid = gid;
+       info.uid = uid;
+       info.max_http_header_pool = 16;
+       info.options = opts | LWS_SERVER_OPTION_VALIDATE_UTF8 | LWS_SERVER_OPTION_EXPLICIT_VHOSTS;
        info.extensions = exts;
+       info.timeout_secs = 5;
+       info.ssl_cipher_list = "ECDHE-ECDSA-AES256-GCM-SHA384:"
+                              "ECDHE-RSA-AES256-GCM-SHA384:"
+                              "DHE-RSA-AES256-GCM-SHA384:"
+                              "ECDHE-RSA-AES256-SHA384:"
+                              "HIGH:!aNULL:!eNULL:!EXPORT:"
+                              "!DES:!MD5:!PSK:!RC4:!HMAC_SHA1:"
+                              "!SHA1:!DHE-RSA-AES128-GCM-SHA256:"
+                              "!DHE-RSA-AES128-SHA256:"
+                              "!AES128-GCM-SHA256:"
+                              "!AES128-SHA256:"
+                              "!DHE-RSA-AES256-SHA256:"
+                              "!AES256-GCM-SHA384:"
+                              "!AES256-SHA256";
+
+       if (use_ssl)
+               /* redirect guys coming on http */
+               info.options |= LWS_SERVER_OPTION_REDIRECT_HTTP_TO_HTTPS;
+
        context = lws_create_context(&info);
        if (context == NULL) {
                lwsl_err("libwebsocket init failed\n");
                return -1;
        }
 
-       /* this shows how to override the lws file operations.  You don't need
+       vhost = lws_create_vhost(context, &info);
+       if (!vhost) {
+               lwsl_err("vhost creation failed\n");
+               return -1;
+       }
+
+       /*
+        * For testing dynamic vhost create / destroy later, we use port + 1
+        * Normally if you were creating more vhosts, you would set info.name
+        * for each to be the hostname external clients use to reach it
+        */
+
+       info.port++;
+
+#if !defined(LWS_NO_CLIENT) && defined(LWS_OPENSSL_SUPPORT)
+       lws_init_vhost_client_ssl(&info, vhost);
+#endif
+
+       /* this shows how to override the lws file operations.  You don't need
         * to do any of this unless you have a reason (eg, want to serve
         * compressed files without decompressing the whole archive)
         */
@@ -337,6 +476,9 @@ int main(int argc, char **argv)
        lws_get_fops(context)->open = test_server_fops_open;
 
        n = 0;
+#ifdef EXTERNAL_POLL
+       int ms_1sec = 0;
+#endif
        while (n >= 0 && !force_exit) {
                struct timeval tv;
 
@@ -365,7 +507,7 @@ int main(int argc, char **argv)
                if (n < 0)
                        continue;
 
-               if (n)
+               if (n) {
                        for (n = 0; n < count_pollfds; n++)
                                if (pollfds[n].revents)
                                        /*
@@ -376,6 +518,20 @@ int main(int argc, char **argv)
                                        if (lws_service_fd(context,
                                                                  &pollfds[n]) < 0)
                                                goto done;
+
+                       /* if needed, force-service wsis that may not have read all input */
+                       while (!lws_service_adjust_timeout(context, 1, 0)) {
+                               lwsl_notice("extpoll doing forced service!\n");
+                               lws_service_tsi(context, -1, 0);
+                       }
+               } else {
+                       /* no revents, but before polling again, make lws check for any timeouts */
+                       if (ms - ms_1sec > 1000) {
+                               lwsl_notice("1 per sec\n");
+                               lws_service_fd(context, NULL);
+                               ms_1sec = ms;
+                       }
+               }
 #else
                /*
                 * If libwebsockets sockets are all we care about,
@@ -388,6 +544,17 @@ int main(int argc, char **argv)
 
                n = lws_service(context, 50);
 #endif
+
+               if (dynamic_vhost_enable && !dynamic_vhost) {
+                       lwsl_notice("creating dynamic vhost...\n");
+                       dynamic_vhost = lws_create_vhost(context, &info);
+               } else
+                       if (!dynamic_vhost_enable && dynamic_vhost) {
+                               lwsl_notice("destroying dynamic vhost...\n");
+                               lws_vhost_destroy(dynamic_vhost);
+                               dynamic_vhost = NULL;
+                       }
+
        }
 
 #ifdef EXTERNAL_POLL