/* * libwebsockets-test-server-v2.0 - libwebsockets test implementation * * Copyright (C) 2010-2016 Andy Green * * This file is made available under the Creative Commons CC0 1.0 * Universal Public Domain Dedication. * * The person who associated a work with this deed has dedicated * the work to the public domain by waiving all of his or her rights * to the work worldwide under copyright law, including all related * and neighboring rights, to the extent allowed by law. You can copy, * modify, distribute and perform the work, even for commercial purposes, * 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 * Public Domain. */ #include #include #ifndef WIN32 #include #endif int debug_level = 7; struct lws_context *context; /* 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_USE_POLARSSL) #else #if defined(LWS_USE_MBEDTLS) #else #if defined(LWS_OPENSSL_SUPPORT) && defined(LWS_HAVE_SSL_CTX_set1_param) char crl_path[1024] = ""; #endif #endif #endif /* * This test server is ONLY this .c file, it's radically simpler than the * pre-v2.0 test servers. For example it has no user callback content or * defines any protocols. * * To achieve that, it uses the LWS protocol plugins. Those in turn * use libuv. So you must configure with LWS_WITH_PLUGINS (which implies * libuv) to get this to build. * * You can find the individual protocol plugin sources in ../plugins */ void sighandler(int sig) { lws_cancel_service(context); } static const struct lws_extension exts[] = { { "permessage-deflate", lws_extension_callback_pm_deflate, "permessage-deflate" }, { "deflate-frame", lws_extension_callback_pm_deflate, "deflate_frame" }, { NULL, NULL, NULL /* terminator */ } }; /* * mount a handler for a section of the URL space */ static const struct lws_http_mount mount_post = { NULL, /* linked-list pointer to next*/ "/formtest", /* mountpoint in URL namespace on this vhost */ "protocol-post-demo", /* handler */ NULL, /* default filename if none given */ NULL, NULL, 0, 0, 0, 0, 0, LWSMPRO_CALLBACK, /* origin points to a callback */ 9, /* strlen("/formtest"), ie length of the mountpoint */ }; /* * mount a filesystem directory into the URL space at / * point it to our /usr/share directory with our assets in * stuff from here is autoserved by the library */ static const struct lws_http_mount mount = { (struct lws_http_mount *)&mount_post, /* linked-list pointer to next*/ "/", /* mountpoint in URL namespace on this vhost */ LOCAL_RESOURCE_PATH, /* where to go on the filesystem for that */ "test.html", /* default filename if none given */ NULL, NULL, 0, 0, 0, 0, 0, LWSMPRO_FILE, /* mount type is a directory in a filesystem */ 1, /* strlen("/"), ie length of the mountpoint */ }; /* * this sets a per-vhost, per-protocol option name:value pair * the effect is to set this protocol to be the default one for the vhost, * ie, selected if no Protocol: header is sent with the ws upgrade. */ static const struct lws_protocol_vhost_options pvo_opt = { NULL, NULL, "default", "1" }; /* * We must enable the plugin protocols we want into our vhost with a * linked-list. We can also give the plugin per-vhost options here. */ static const struct lws_protocol_vhost_options pvo_3 = { NULL, NULL, "protocol-post-demo", "" /* ignored, just matches the protocol name above */ }; static const struct lws_protocol_vhost_options pvo_2 = { &pvo_3, NULL, "lws-status", "" /* ignored, just matches the protocol name above */ }; static const struct lws_protocol_vhost_options pvo_1 = { &pvo_2, NULL, "lws-mirror-protocol", "" }; static const struct lws_protocol_vhost_options pvo = { &pvo_1, &pvo_opt, "dumb-increment-protocol", "" }; static void signal_cb(uv_signal_t *watcher, int signum) { lwsl_err("Signal %d caught, exiting...\n", watcher->signum); switch (watcher->signum) { case SIGTERM: case SIGINT: break; default: signal(SIGABRT, SIG_DFL); abort(); break; } lws_libuv_stop(context); } static const struct option options[] = { { "help", no_argument, NULL, 'h' }, { "debug", required_argument, NULL, 'd' }, { "port", required_argument, NULL, 'p' }, { "ssl", no_argument, NULL, 's' }, { "allow-non-ssl", no_argument, NULL, 'a' }, { "interface", required_argument, NULL, 'i' }, { "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 #ifndef LWS_NO_DAEMONIZE { "daemonize", no_argument, NULL, 'D' }, #endif { "resource_path", required_argument, NULL, 'r' }, { NULL, 0, 0, 0 } }; static const char * const plugin_dirs[] = { INSTALL_DATADIR"/libwebsockets-test-server/plugins/", NULL }; int main(int argc, char **argv) { struct lws_context_creation_info info; char interface_name[128] = ""; 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 opts = 0; int n = 0; #ifndef _WIN32 int syslog_options = LOG_PID | LOG_PERROR; #endif #ifndef LWS_NO_DAEMONIZE int daemonize = 0; #endif /* * take care to zero down the info struct, he contains random garbaage * from the stack otherwise */ memset(&info, 0, sizeof info); info.port = 7681; while (n >= 0) { n = getopt_long(argc, argv, "i:hsap:d:Dr:C:K:A:R:vu:g:", (struct option *)options, NULL); if (n < 0) continue; switch (n) { #ifndef LWS_NO_DAEMONIZE case 'D': daemonize = 1; #ifndef _WIN32 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; break; case 'a': opts |= LWS_SERVER_OPTION_ALLOW_NON_SSL_ON_SSL_PORT; break; case 'p': info.port = atoi(optarg); break; case 'i': strncpy(interface_name, optarg, sizeof interface_name); interface_name[(sizeof interface_name) - 1] = '\0'; iface = interface_name; break; case 'r': resource_path = optarg; printf("Setting resource path to \"%s\"\n", resource_path); break; case 'C': 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) - 1); key_path[sizeof(key_path) - 1] = '\0'; break; case 'A': strncpy(ca_path, optarg, sizeof(ca_path) - 1); ca_path[sizeof(ca_path) - 1] = '\0'; break; #if defined(LWS_OPENSSL_SUPPORT) case 'v': use_ssl = 1; opts |= LWS_SERVER_OPTION_REQUIRE_VALID_OPENSSL_CLIENT_CERT; break; #if defined(LWS_USE_POLARSSL) #else #if defined(LWS_USE_MBEDTLS) #else #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 #endif #endif case 'h': fprintf(stderr, "Usage: test-server " "[--port=

] [--ssl] " "[-d ] " "[--resource_path ]\n"); exit(1); } } #if !defined(LWS_NO_DAEMONIZE) && !defined(WIN32) /* * normally lock path would be /var/lock/lwsts or similar, to * simplify getting started without having to take care about * permissions or running as root, set to /tmp/.lwsts-lock */ if (daemonize && lws_daemonize("/tmp/.lwsts-lock")) { fprintf(stderr, "Failed to daemonize\n"); return 10; } #endif signal(SIGINT, sighandler); #ifndef _WIN32 /* we will only try to log things according to our debug_level */ setlogmask(LOG_UPTO (LOG_DEBUG)); openlog("lwsts", syslog_options, LOG_DAEMON); #endif /* tell the library what debug level to emit and to send it to syslog */ lws_set_log_level(debug_level, lwsl_emit_syslog); lwsl_notice("libwebsockets test server - license LGPL2.1+SLE\n"); lwsl_notice("(C) Copyright 2010-2016 Andy Green \n"); lwsl_notice(" Using resource path \"%s\"\n", resource_path); info.iface = iface; info.protocols = NULL; /* all protocols from lib / plugins */ info.ssl_cert_filepath = NULL; info.ssl_private_key_filepath = NULL; info.gid = gid; info.uid = uid; info.max_http_header_pool = 16; info.options = opts | LWS_SERVER_OPTION_VALIDATE_UTF8 | LWS_SERVER_OPTION_LIBUV; /* plugins require this */ if (use_ssl) { if (strlen(resource_path) > sizeof(cert_path) - 32) { lwsl_err("resource path too long\n"); return -1; } if (!cert_path[0]) sprintf(cert_path, "%s/libwebsockets-test-server.pem", resource_path); if (strlen(resource_path) > sizeof(key_path) - 32) { lwsl_err("resource path too long\n"); return -1; } if (!key_path[0]) sprintf(key_path, "%s/libwebsockets-test-server.key.pem", resource_path); info.ssl_cert_filepath = cert_path; info.ssl_private_key_filepath = key_path; if (ca_path[0]) info.ssl_ca_filepath = ca_path; /* redirect guys coming on http */ info.options |= LWS_SERVER_OPTION_REDIRECT_HTTP_TO_HTTPS; } 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"; /* tell lws to look for protocol plugins here */ info.plugin_dirs = plugin_dirs; /* tell lws about our mount we want */ info.mounts = &mount; /* * give it our linked-list of Per-Vhost Options, these control * which protocols (from plugins) are allowed to be enabled on * our vhost */ info.pvo = &pvo; /* * As it is, this creates the context and a single Vhost at the same * time. You can use LWS_SERVER_OPTION_EXPLICIT_VHOSTS option above * to just create the context, and call lws_create_vhost() afterwards * multiple times with different info to get multiple listening vhosts. */ context = lws_create_context(&info); if (context == NULL) { lwsl_err("libwebsocket init failed\n"); return -1; } /* libuv event loop */ lws_uv_sigint_cfg(context, 1, signal_cb); if (lws_uv_initloop(context, NULL, 0)) lwsl_err("lws_uv_initloop failed\n"); else lws_libuv_run(context, 0); /* when we decided to exit the event loop */ lws_context_destroy(context); lwsl_notice("libwebsockets-test-server exited cleanly\n"); #ifndef _WIN32 closelog(); #endif return 0; }