HTTP_PROXY: make usable
[platform/upstream/libwebsockets.git] / lib / context.c
index 2a56c69..fab3dc2 100644 (file)
@@ -40,6 +40,7 @@ lws_get_library_version(void)
        return library_version;
 }
 
+#if !defined(LWS_WITH_NO_LOGS)
 static const char * const mount_protocols[] = {
        "http://",
        "https://",
@@ -49,6 +50,7 @@ static const char * const mount_protocols[] = {
        ">https://",
        "callback://"
 };
+#endif
 
 LWS_VISIBLE void *
 lws_protocol_vh_priv_zalloc(struct lws_vhost *vhost, const struct lws_protocols *prot,
@@ -126,7 +128,7 @@ lws_vhost_protocol_options(struct lws_vhost *vh, const char *name)
  * inform every vhost that hasn't already done it, that
  * his protocols are initializing
  */
-int
+LWS_VISIBLE int
 lws_protocol_init(struct lws_context *context)
 {
        struct lws_vhost *vh = context->vhost_list;
@@ -137,7 +139,7 @@ lws_protocol_init(struct lws_context *context)
        memset(&wsi, 0, sizeof(wsi));
        wsi.context = context;
 
-       lwsl_notice("%s\n", __func__);
+       lwsl_info("%s\n", __func__);
 
        while (vh) {
                wsi.vhost = vh;
@@ -150,7 +152,8 @@ lws_protocol_init(struct lws_context *context)
 
                for (n = 0; n < vh->count_protocols; n++) {
                        wsi.protocol = &vh->protocols[n];
-
+                       if (!vh->protocols[n].name)
+                               continue;
                        pvo = lws_vhost_protocol_options(vh,
                                                         vh->protocols[n].name);
                        if (pvo) {
@@ -174,6 +177,13 @@ lws_protocol_init(struct lws_context *context)
                                                   vh->protocols[n].name);
                                                vh->default_protocol_index = n;
                                        }
+                                       if (!strcmp(pvo->name, "raw")) {
+                                               lwsl_notice("Setting raw "
+                                                  "protocol for vh %s to %s\n",
+                                                  vh->name,
+                                                  vh->protocols[n].name);
+                                               vh->raw_protocol_index = n;
+                                       }
                                        pvo = pvo->next;
                                }
 
@@ -212,10 +222,13 @@ lws_callback_http_dummy(struct lws *wsi, enum lws_callback_reasons reason,
 {
 #ifdef LWS_WITH_CGI
        struct lws_cgi_args *args;
-       char buf[128];
+#endif
+#if defined(LWS_WITH_CGI) || defined(LWS_WITH_HTTP_PROXY)
+       char buf[512];
        int n;
 #endif
 
+
        switch (reason) {
        case LWS_CALLBACK_HTTP:
 #ifndef LWS_NO_SERVER
@@ -233,13 +246,99 @@ lws_callback_http_dummy(struct lws *wsi, enum lws_callback_reasons reason,
                        if (lws_cgi_write_split_stdout_headers(wsi) < 0)
                                return -1;
 
-                       wsi->reason_bf &= ~1;
+                       if (wsi->reason_bf & 8)
+                               wsi->reason_bf &= ~8;
+                       else
+                               wsi->reason_bf &= ~1;
                        break;
                }
 #endif
+#if defined(LWS_WITH_HTTP_PROXY)
+               if (wsi->reason_bf & 2) {
+                       char *px = buf + LWS_PRE;
+                       int lenx = sizeof(buf) - LWS_PRE;
+                       /*
+                        * our sink is writeable and our source has something
+                        * to read.  So read a lump of source material of
+                        * suitable size to send or what's available, whichever
+                        * is the smaller.
+                        */
+
+
+                       wsi->reason_bf &= ~2;
+                       if (!lws_get_child(wsi))
+                               break;
+                       if (lws_http_client_read(lws_get_child(wsi), &px, &lenx) < 0)
+                               return -1;
+                       break;
+               }
+#endif
+               break;
 
+#if defined(LWS_WITH_HTTP_PROXY)
+       case LWS_CALLBACK_RECEIVE_CLIENT_HTTP:
+               //lwsl_err("LWS_CALLBACK_RECEIVE_CLIENT_HTTP: wsi %p\n", wsi);
+               assert(lws_get_parent(wsi));
+               if (!lws_get_parent(wsi))
+                       break;
+               lws_get_parent(wsi)->reason_bf |= 2;
+               lws_callback_on_writable(lws_get_parent(wsi));
                break;
 
+       case LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ:
+               //lwsl_err("LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ len %d\n", (int)len);
+               assert(lws_get_parent(wsi));
+               n = lws_write(lws_get_parent(wsi), (unsigned char *)in,
+                               len, LWS_WRITE_HTTP);
+               if (n < 0)
+                       return -1;
+               break;
+
+       case LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP: {
+               unsigned char *p, *end;
+               char ctype[64], ctlen = 0;
+
+               //lwsl_err("LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP\n");
+       
+               p = (unsigned char *)buf + LWS_PRE;
+               end = p + sizeof(buf) - LWS_PRE;
+
+               if (lws_add_http_header_status(lws_get_parent(wsi), HTTP_STATUS_OK, &p, end))
+                       return 1;
+               if (lws_add_http_header_by_token(lws_get_parent(wsi),
+                               WSI_TOKEN_HTTP_SERVER,
+                               (unsigned char *)"libwebsockets",
+                               13, &p, end))
+                       return 1;
+
+               ctlen = lws_hdr_copy(wsi, ctype, sizeof(ctype), WSI_TOKEN_HTTP_CONTENT_TYPE);
+               if (ctlen > 0) {
+                       if (lws_add_http_header_by_token(lws_get_parent(wsi),
+                               WSI_TOKEN_HTTP_CONTENT_TYPE,
+                               (unsigned char *)ctype, ctlen, &p, end))
+                               return 1;
+               }
+#if 0
+               if (lws_add_http_header_content_length(lws_get_parent(wsi),
+                                                      file_len, &p, end))
+                       return 1;
+#endif
+               if (lws_finalize_http_header(lws_get_parent(wsi), &p, end))
+                       return 1;
+
+               *p = '\0';
+//             lwsl_info("%s\n", buf + LWS_PRE);
+
+               n = lws_write(lws_get_parent(wsi), (unsigned char *)buf + LWS_PRE,
+                             p - ((unsigned char *)buf + LWS_PRE),
+                             LWS_WRITE_HTTP_HEADERS);
+               if (n < 0)
+                       return -1;
+
+               break; }
+
+#endif
+
 #ifdef LWS_WITH_CGI
        /* CGI IO events (POLLIN/OUT) appear here, our default policy is:
         *
@@ -301,13 +400,18 @@ static const struct lws_protocols protocols_dummy[] = {
                lws_callback_http_dummy,                /* callback */
                0,      /* per_session_data_size */
                0,                      /* max frame size / rx buffer */
+               0, NULL, 0
        },
        /*
         * the other protocols are provided by lws plugins
         */
-       { NULL, NULL, 0, 0 } /* terminator */
+       { NULL, NULL, 0, 0, 0, NULL, 0} /* terminator */
 };
 
+#ifdef LWS_PLAT_OPTEE
+#undef LWS_HAVE_GETENV
+#endif
+
 LWS_VISIBLE struct lws_vhost *
 lws_create_vhost(struct lws_context *context,
                 struct lws_context_creation_info *info)
@@ -318,9 +422,9 @@ lws_create_vhost(struct lws_context *context,
        const struct lws_protocol_vhost_options *pvo;
 #ifdef LWS_WITH_PLUGINS
        struct lws_plugin *plugin = context->plugin_list;
+#endif
        struct lws_protocols *lwsp;
        int m, f = !info->pvo;
-#endif
 #ifdef LWS_HAVE_GETENV
        char *p;
 #endif
@@ -339,6 +443,10 @@ lws_create_vhost(struct lws_context *context,
                vh->name = info->vhost_name;
 
        vh->iface = info->iface;
+#if !defined(LWS_WITH_ESP8266) && !defined(LWS_WITH_ESP32) && !defined(OPTEE_TA) && !defined(WIN32)
+       vh->bind_iface = info->bind_iface;
+#endif
+
        for (vh->count_protocols = 0;
             info->protocols[vh->count_protocols].callback;
             vh->count_protocols++)
@@ -352,29 +460,31 @@ lws_create_vhost(struct lws_context *context,
        else
                vh->keepalive_timeout = 5;
 
-#ifdef LWS_WITH_PLUGINS
-       if (plugin) {
-               /*
-                * give the vhost a unified list of protocols including the
-                * ones that came from plugins
-                */
-               lwsp = lws_zalloc(sizeof(struct lws_protocols) *
-                                          (vh->count_protocols +
-                                          context->plugin_protocol_count + 1));
-               if (!lwsp)
-                       return NULL;
+       /*
+        * give the vhost a unified list of protocols including the
+        * ones that came from plugins
+        */
+       lwsp = lws_zalloc(sizeof(struct lws_protocols) *
+                                  (vh->count_protocols +
+                                  context->plugin_protocol_count + 1));
+       if (!lwsp) {
+               lwsl_err("OOM\n");
+               return NULL;
+       }
 
-               m = vh->count_protocols;
-               memcpy(lwsp, info->protocols,
-                      sizeof(struct lws_protocols) * m);
+       m = vh->count_protocols;
+       memcpy(lwsp, info->protocols, sizeof(struct lws_protocols) * m);
 
-               /* for compatibility, all protocols enabled on vhost if only
-                * the default vhost exists.  Otherwise only vhosts who ask
-                * for a protocol get it enabled.
-                */
+       /* for compatibility, all protocols enabled on vhost if only
+        * the default vhost exists.  Otherwise only vhosts who ask
+        * for a protocol get it enabled.
+        */
 
-               if (info->options & LWS_SERVER_OPTION_EXPLICIT_VHOSTS)
-                       f = 0;
+       if (info->options & LWS_SERVER_OPTION_EXPLICIT_VHOSTS)
+               f = 0;
+       (void)f;
+#ifdef LWS_WITH_PLUGINS
+       if (plugin) {
 
                while (plugin) {
                        for (n = 0; n < plugin->caps.count_protocols; n++) {
@@ -393,10 +503,19 @@ lws_create_vhost(struct lws_context *context,
                        }
                        plugin = plugin->list;
                }
-               vh->protocols = lwsp;
-       } else
+       }
+#endif
+
+       if (
+#ifdef LWS_WITH_PLUGINS
+           (context->plugin_list) ||
 #endif
+           info->options & LWS_SERVER_OPTION_EXPLICIT_VHOSTS)
+               vh->protocols = lwsp;
+       else {
                vh->protocols = info->protocols;
+               free(lwsp);
+       }
 
        vh->same_vh_protocol_list = (struct lws **)
                        lws_zalloc(sizeof(struct lws *) * vh->count_protocols);
@@ -473,9 +592,14 @@ lws_create_vhost(struct lws_context *context,
 #if !defined(LWS_WITH_ESP8266)
        vh->http_proxy_port = 0;
        vh->http_proxy_address[0] = '\0';
+#if defined(LWS_WITH_SOCKS5)
+       vh->socks_proxy_port = 0;
+       vh->socks_proxy_address[0] = '\0';
+#endif
 
        /* either use proxy from info, or try get it from env var */
 
+       /* http proxy */
        if (info->http_proxy_address) {
                /* override for backwards compatibility */
                if (info->http_proxy_port)
@@ -488,7 +612,23 @@ lws_create_vhost(struct lws_context *context,
                        lws_set_proxy(vh, p);
 #endif
        }
+#if defined(LWS_WITH_SOCKS5)
+       /* socks proxy */
+       if (info->socks_proxy_address) {
+               /* override for backwards compatibility */
+               if (info->socks_proxy_port)
+                       vh->socks_proxy_port = info->socks_proxy_port;
+               lws_set_socks(vh, info->socks_proxy_address);
+       } else {
+#ifdef LWS_HAVE_GETENV
+               p = getenv("socks_proxy");
+               if (p)
+                       lws_set_socks(vh, p);
+#endif
+       }
+#endif
 #endif
+
        vh->ka_time = info->ka_time;
        vh->ka_interval = info->ka_interval;
        vh->ka_probes = info->ka_probes;
@@ -514,15 +654,14 @@ lws_create_vhost(struct lws_context *context,
        } else
                vh->log_fd = (int)LWS_INVALID_FILE;
 #endif
-
        if (lws_context_init_server_ssl(info, vh))
                goto bail;
-
        if (lws_context_init_client_ssl(info, vh))
                goto bail;
-
-       if (lws_context_init_server(info, vh))
+       if (lws_context_init_server(info, vh)) {
+               lwsl_err("init server failed\n");
                goto bail;
+       }
 
        while (1) {
                if (!(*vh1)) {
@@ -531,7 +670,6 @@ lws_create_vhost(struct lws_context *context,
                }
                vh1 = &(*vh1)->vhost_next;
        };
-
        /* for the case we are adding a vhost much later, after server init */
 
        if (context->protocol_init_done)
@@ -556,12 +694,12 @@ lws_init_vhost_client_ssl(const struct lws_context_creation_info *info,
 
        return lws_context_init_client_ssl(&i, vhost);
 }
-       struct lws wsi;
 
 LWS_VISIBLE struct lws_context *
 lws_create_context(struct lws_context_creation_info *info)
 {
        struct lws_context *context = NULL;
+       struct lws_plat_file_ops *prev;
 #ifndef LWS_NO_DAEMONIZE
        int pid_daemon = get_daemonize_pid();
 #endif
@@ -572,6 +710,9 @@ lws_create_context(struct lws_context_creation_info *info)
 
        lwsl_notice("Initial logging level %d\n", log_level);
        lwsl_notice("Libwebsockets version: %s\n", library_version);
+#if defined(GCC_VER)
+       lwsl_notice("Compiled with  %s\n", GCC_VER);
+#endif
 #if LWS_POSIX
 #ifdef LWS_USE_IPV6
        if (!lws_check_opt(info->options, LWS_SERVER_OPTION_DISABLE_IPV6))
@@ -581,14 +722,19 @@ lws_create_context(struct lws_context_creation_info *info)
 #else
        lwsl_notice("IPV6 not compiled in\n");
 #endif
+#if !defined(LWS_PLAT_OPTEE) && !defined(LWS_PLAT_ESP32)
        lws_feature_status_libev(info);
        lws_feature_status_libuv(info);
 #endif
+#endif
        lwsl_info(" LWS_DEF_HEADER_LEN    : %u\n", LWS_DEF_HEADER_LEN);
        lwsl_info(" LWS_MAX_PROTOCOLS     : %u\n", LWS_MAX_PROTOCOLS);
        lwsl_info(" LWS_MAX_SMP           : %u\n", LWS_MAX_SMP);
        lwsl_info(" SPEC_LATEST_SUPPORTED : %u\n", SPEC_LATEST_SUPPORTED);
-       lwsl_info(" sizeof (*info)        : %u\n", sizeof(*info));
+       lwsl_info(" sizeof (*info)        : %ld\n", (long)sizeof(*info));
+#if defined(LWS_WITH_STATS)
+       lwsl_notice(" LWS_WITH_STATS        : on\n");
+#endif
 #if LWS_POSIX
        lwsl_info(" SYSTEM_RANDOM_FILEPATH: '%s'\n", SYSTEM_RANDOM_FILEPATH);
 #endif
@@ -605,12 +751,46 @@ lws_create_context(struct lws_context_creation_info *info)
        else
                context->pt_serv_buf_size = 4096;
 
+       /* default to just the platform fops implementation */
+
+       context->fops_platform.LWS_FOP_OPEN     = _lws_plat_file_open;
+       context->fops_platform.LWS_FOP_CLOSE    = _lws_plat_file_close;
+       context->fops_platform.LWS_FOP_SEEK_CUR = _lws_plat_file_seek_cur;
+       context->fops_platform.LWS_FOP_READ     = _lws_plat_file_read;
+       context->fops_platform.LWS_FOP_WRITE    = _lws_plat_file_write;
+       context->fops_platform.fi[0].sig        = NULL;
+
+       /*
+        *  arrange a linear linked-list of fops starting from context->fops
+        *
+        * platform fops
+        * [ -> fops_zip (copied into context so .next settable) ]
+        * [ -> info->fops ]
+        */
+
+       context->fops = &context->fops_platform;
+       prev = (struct lws_plat_file_ops *)context->fops;
+
+#if defined(LWS_WITH_ZIP_FOPS)
+       /* make a soft copy so we can set .next */
+       context->fops_zip = fops_zip;
+       prev->next = &context->fops_zip;
+       prev = (struct lws_plat_file_ops *)prev->next;
+#endif
+
+       /* if user provided fops, tack them on the end of the list */
+       if (info->fops)
+               prev->next = info->fops;
+
        context->reject_service_keywords = info->reject_service_keywords;
        if (info->external_baggage_free_on_destroy)
                context->external_baggage_free_on_destroy =
                        info->external_baggage_free_on_destroy;
 
        context->time_up = time(NULL);
+
+       context->simultaneous_ssl_restriction = info->simultaneous_ssl_restriction;
+
 #ifndef LWS_NO_DAEMONIZE
        if (pid_daemon) {
                context->started_with_parent = pid_daemon;
@@ -703,9 +883,6 @@ lws_create_context(struct lws_context_creation_info *info)
        lwsl_notice(" Threads: %d each %d fds\n", context->count_threads,
                    context->fd_limit_per_thread);
 
-       memset(&wsi, 0, sizeof(wsi));
-       wsi.context = context;
-
        if (!info->ka_interval && info->ka_time > 0) {
                lwsl_err("info->ka_interval can't be 0 if ka_time used\n");
                return NULL;
@@ -731,21 +908,31 @@ lws_create_context(struct lws_context_creation_info *info)
        context->use_ev_sigint = 1;
        context->lws_uv_sigint_cb = &lws_uv_sigint_cb;
 #endif
+#ifdef LWS_USE_LIBEVENT
+       /* (Issue #264) In order to *avoid breaking backwards compatibility*, we
+        * enable libev mediated SIGINT handling with a default handler of
+        * lws_sigint_cb. The handler can be overridden or disabled
+        * by invoking lws_sigint_cfg after creating the context, but
+        * before invoking lws_initloop:
+        */
+       context->use_ev_sigint = 1;
+       context->lws_event_sigint_cb = &lws_event_sigint_cb;
+#endif /* LWS_USE_LIBEVENT */
 
-       lwsl_info(" mem: context:         %5u bytes (%d ctx + (%d thr x %d))\n",
-                 sizeof(struct lws_context) +
+       lwsl_info(" mem: context:         %5lu bytes (%ld ctx + (%ld thr x %d))\n",
+                 (long)sizeof(struct lws_context) +
                  (context->count_threads * context->pt_serv_buf_size),
-                 sizeof(struct lws_context),
-                 context->count_threads,
+                 (long)sizeof(struct lws_context),
+                 (long)context->count_threads,
                  context->pt_serv_buf_size);
 
-       lwsl_info(" mem: http hdr rsvd:   %5u bytes (%u thr x (%u + %u) x %u))\n",
-                   (context->max_http_header_data +
+       lwsl_info(" mem: http hdr rsvd:   %5lu bytes (%u thr x (%u + %lu) x %u))\n",
+                   (long)(context->max_http_header_data +
                     sizeof(struct allocated_headers)) *
                    context->max_http_header_pool * context->count_threads,
                    context->count_threads,
                    context->max_http_header_data,
-                   sizeof(struct allocated_headers),
+                   (long)sizeof(struct allocated_headers),
                    context->max_http_header_pool);
        n = sizeof(struct lws_pollfd) * context->count_threads *
            context->fd_limit_per_thread;
@@ -760,9 +947,6 @@ lws_create_context(struct lws_context_creation_info *info)
                context->server_string = info->server_string;
                context->server_string_len = (short)
                                strlen(context->server_string);
-       } else {
-               context->server_string = "libwebsockets";
-               context->server_string_len = 13;
        }
 
 #if LWS_MAX_SMP > 1
@@ -791,8 +975,8 @@ lws_create_context(struct lws_context_creation_info *info)
 
        lws_context_init_extensions(info, context);
 
-       lwsl_notice(" mem: per-conn:        %5u bytes + protocol rx buf\n",
-                   sizeof(struct lws));
+       lwsl_notice(" mem: per-conn:        %5lu bytes + protocol rx buf\n",
+                   (unsigned long)sizeof(struct lws));
 
        strcpy(context->canonical_hostname, "unknown");
        lws_server_get_canonical_hostname(context, info);
@@ -800,6 +984,11 @@ lws_create_context(struct lws_context_creation_info *info)
        context->uid = info->uid;
        context->gid = info->gid;
 
+#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
+       memcpy(context->caps, info->caps, sizeof(context->caps));
+       context->count_caps = info->count_caps;
+#endif
+
        /*
         * drop any root privs for this process
         * to listen on port < 1023 we would have needed root, but now we are
@@ -828,22 +1017,79 @@ bail:
        return NULL;
 }
 
+LWS_VISIBLE LWS_EXTERN void
+lws_context_deprecate(struct lws_context *context, lws_reload_func cb)
+{
+       struct lws_vhost *vh = context->vhost_list, *vh1;
+       struct lws *wsi;
+
+       /*
+        * "deprecation" means disable the context from accepting any new
+        * connections and free up listen sockets to be used by a replacement
+        * context.
+        *
+        * Otherwise the deprecated context remains operational, until its
+        * number of connected sockets falls to zero, when it is deleted.
+        */
+
+       /* for each vhost, close his listen socket */
+
+       while (vh) {
+               wsi = vh->lserv_wsi;
+               if (wsi) {
+                       wsi->socket_is_permanently_unusable = 1;
+                       lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS);
+                       wsi->context->deprecation_pending_listen_close_count++;
+                       /*
+                        * other vhosts can share the listen port, they
+                        * point to the same wsi.  So zap those too.
+                        */
+                       vh1 = context->vhost_list;
+                       while (vh1) {
+                               if (vh1->lserv_wsi == wsi)
+                                       vh1->lserv_wsi = NULL;
+                               vh1 = vh1->vhost_next;
+                       }
+               }
+               vh = vh->vhost_next;
+       }
+
+       context->deprecated = 1;
+       context->deprecation_cb = cb;
+}
+
+LWS_VISIBLE LWS_EXTERN int
+lws_context_is_deprecated(struct lws_context *context)
+{
+       return context->deprecated;
+}
+
+LWS_VISIBLE void
+lws_context_destroy2(struct lws_context *context);
+
 LWS_VISIBLE void
 lws_context_destroy(struct lws_context *context)
 {
        const struct lws_protocols *protocol = NULL;
        struct lws_context_per_thread *pt;
-       struct lws_vhost *vh = NULL, *vh1;
+       struct lws_vhost *vh = NULL;
        struct lws wsi;
        int n, m;
 
-       lwsl_notice("%s\n", __func__);
-
-       if (!context)
+       if (!context) {
+               lwsl_notice("%s: ctx %p\n", __func__, context);
                return;
+       }
+       if (context->being_destroyed1) {
+               lwsl_notice("%s: ctx %p: already being destroyed\n", __func__, context);
+               return;
+       }
+
+       lwsl_notice("%s: ctx %p\n", __func__, context);
 
        m = context->count_threads;
        context->being_destroyed = 1;
+       context->being_destroyed1 = 1;
 
        memset(&wsi, 0, sizeof(wsi));
        wsi.context = context;
@@ -868,6 +1114,7 @@ lws_context_destroy(struct lws_context *context)
                }
                lws_pt_mutex_destroy(pt);
        }
+
        /*
         * give all extensions a chance to clean up any per-context
         * allocations they might have made
@@ -909,6 +1156,7 @@ lws_context_destroy(struct lws_context *context)
 
                lws_libev_destroyloop(context, n);
                lws_libuv_destroyloop(context, n);
+               lws_libevent_destroyloop(context, n);
 
                lws_free_set_NULL(context->pt[n].serv_buf);
                if (pt->ah_pool)
@@ -917,12 +1165,30 @@ lws_context_destroy(struct lws_context *context)
                        lws_free(pt->http_header_data);
        }
        lws_plat_context_early_destroy(context);
-       lws_ssl_context_destroy(context);
 
        if (context->pt[0].fds)
                lws_free_set_NULL(context->pt[0].fds);
 
-       /* free all the vhost allocations */
+       if (!LWS_LIBUV_ENABLED(context))
+               lws_context_destroy2(context);
+}
+
+/*
+ * call the second one after the event loop has been shut down cleanly
+ */
+
+LWS_VISIBLE void
+lws_context_destroy2(struct lws_context *context)
+{
+       const struct lws_protocols *protocol = NULL;
+       struct lws_vhost *vh = NULL, *vh1;
+       int n;
+
+       lwsl_notice("%s: ctx %p\n", __func__, context);
+
+       /*
+        * free all the per-vhost allocations
+        */
 
        vh = context->vhost_list;
        while (vh) {
@@ -932,6 +1198,7 @@ lws_context_destroy(struct lws_context *context)
                        while (n < vh->count_protocols) {
                                if (vh->protocol_vh_privs &&
                                    vh->protocol_vh_privs[n]) {
+                                       // lwsl_notice("   %s: freeing per-vhost protocol data %p\n", __func__, vh->protocol_vh_privs[n]);
                                        lws_free(vh->protocol_vh_privs[n]);
                                        vh->protocol_vh_privs[n] = NULL;
                                }
@@ -946,6 +1213,11 @@ lws_context_destroy(struct lws_context *context)
 #ifdef LWS_WITH_PLUGINS
                if (context->plugin_list)
                        lws_free((void *)vh->protocols);
+#else
+               if (vh->options & LWS_SERVER_OPTION_EXPLICIT_VHOSTS)
+                       lws_free((void *)vh->protocols);
+#endif
+#ifdef LWS_WITH_PLUGINS
 #ifndef LWS_NO_EXTENSIONS
                if (context->plugin_extension_count)
                        lws_free((void *)vh->extensions);
@@ -961,6 +1233,9 @@ lws_context_destroy(struct lws_context *context)
                vh = vh1;
        }
 
+       lws_stats_log_dump(context);
+
+       lws_ssl_context_destroy(context);
        lws_plat_context_late_destroy(context);
 
        if (context->external_baggage_free_on_destroy)