int main(int argc, const char **argv)
{
struct lws_context_creation_info info;
struct lws_context *context;
const char *p;
int result = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE;
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS gencrypto apis tests\n");
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
info.port = CONTEXT_PORT_NO_LISTEN;
info.options = LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
context = lws_create_context(&info);
if (!context) {
lwsl_err("lws init failed\n");
return 1;
}
result |= test_genaes(context);
result |= test_genec(context);
lwsl_user("Completed: %s\n", result ? "FAIL" : "PASS");
lws_context_destroy(context);
return result;
}
static void
foreign_timer_service(void *foreign_loop)
{
void *foreign_loops[1];
lwsl_user("Foreign 1Hz timer\n");
if (sequence == TEST_STATE_EXIT && !context && !reported) {
/*
* at this point the lws_context_destroy() we did earlier
* has completed and the entire context is wholly destroyed
*/
lwsl_user("lws_destroy_context() done, continuing for 5s\n");
reported = 1;
}
if (--lifetime)
return;
switch (sequence++) {
case TEST_STATE_CREATE_LWS_CONTEXT:
/* this only has to exist for the duration of create context */
foreign_loops[0] = foreign_loop;
info.foreign_loops = foreign_loops;
context = lws_create_context(&info);
if (!context) {
lwsl_err("lws init failed\n");
return;
}
lwsl_user("LWS Context created and will be active for 10s\n");
lifetime = 11;
break;
case TEST_STATE_DESTROY_LWS_CONTEXT:
/* cleanup the lws part */
lwsl_user("Destroying lws context and continuing loop for 5s\n");
lws_context_destroy(context);
lifetime = 6;
break;
case TEST_STATE_EXIT:
lwsl_user("Deciding to exit foreign loop too\n");
#if defined(LWS_WITH_LIBUV)
if (info.options & LWS_SERVER_OPTION_LIBUV)
foreign_event_loop_stop_libuv();
#endif
#if defined(LWS_WITH_LIBEVENT)
if (info.options & LWS_SERVER_OPTION_LIBEVENT)
foreign_event_loop_stop_libevent();
#endif
#if defined(LWS_WITH_LIBEV)
if (info.options & LWS_SERVER_OPTION_LIBEV)
foreign_event_loop_stop_libev();
#endif
break;
default:
break;
}
}
static void *
thread_spam(void *d)
{
struct per_vhost_data__minimal *vhd =
(struct per_vhost_data__minimal *)d;
struct msg amsg;
int len = 128, index = 1, n;
do {
/* don't generate output if client not connected */
if (!vhd->established)
goto wait;
pthread_mutex_lock(&vhd->lock_ring); /* --------- ring lock { */
/* only create if space in ringbuffer */
n = (int)lws_ring_get_count_free_elements(vhd->ring);
if (!n) {
lwsl_user("dropping!\n");
goto wait_unlock;
}
amsg.payload = malloc(LWS_PRE + len);
if (!amsg.payload) {
lwsl_user("OOM: dropping\n");
goto wait_unlock;
}
n = lws_snprintf((char *)amsg.payload + LWS_PRE, len,
"tid: %p, msg: %d",
(void *)pthread_self(), index++);
amsg.len = n;
n = lws_ring_insert(vhd->ring, &amsg, 1);
if (n != 1) {
__minimal_destroy_message(&amsg);
lwsl_user("dropping!\n");
} else
/*
* This will cause a LWS_CALLBACK_EVENT_WAIT_CANCELLED
* in the lws service thread context.
*/
lws_cancel_service(vhd->context);
wait_unlock:
pthread_mutex_unlock(&vhd->lock_ring); /* } ring lock ------- */
wait:
usleep(100000);
} while (!vhd->finished);
lwsl_notice("thread_spam %p exiting\n", (void *)pthread_self());
pthread_exit(NULL);
return NULL;
}
int main(int argc, const char **argv)
{
struct lws_context_creation_info info;
struct lws_context *context;
const char *p;
int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
/* for LLL_ verbosity above NOTICE to be built into lws,
* lws must have been configured and built with
* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
/* | LLL_DEBUG */;
signal(SIGINT, sigint_handler);
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS minimal raw file\n");
if (argc < 2) {
lwsl_user("Usage: %s <file to monitor> "
" eg, /dev/ttyUSB0 or /dev/input/event0 or "
"/proc/self/fd/0\n", argv[0]);
return 1;
}
signal(SIGINT, sigint_handler);
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
info.port = CONTEXT_PORT_NO_LISTEN_SERVER; /* no listen socket for demo */
info.protocols = protocols;
lws_strncpy(filepath, argv[1], sizeof(filepath));
context = lws_create_context(&info);
if (!context) {
lwsl_err("lws init failed\n");
return 1;
}
while (n >= 0 && !interrupted)
n = lws_service(context, 1000);
lws_context_destroy(context);
return 0;
}
int main(int argc, const char **argv)
{
struct lws_context_creation_info info;
struct lws_context *context;
const char *p;
int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
/* for LLL_ verbosity above NOTICE to be built into lws,
* lws must have been configured and built with
* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
/* | LLL_DEBUG */;
signal(SIGINT, sigint_handler);
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS minimal ws client + permessage-deflate + multifragment bulk message\n");
lwsl_user(" needs minimal-ws-server-pmd-bulk running to communicate with\n");
lwsl_user(" %s [-n (no exts)] [-c (compressible)]\n", argv[0]);
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
info.port = CONTEXT_PORT_NO_LISTEN;
info.protocols = protocols;
info.pvo = &pvo;
if (!lws_cmdline_option(argc, argv, "-n"))
info.extensions = extensions;
info.pt_serv_buf_size = 32 * 1024;
if (lws_cmdline_option(argc, argv, "-c"))
options |= 1;
context = lws_create_context(&info);
if (!context) {
lwsl_err("lws init failed\n");
return 1;
}
while (n >= 0 && !interrupted)
n = lws_service(context, 1000);
lws_context_destroy(context);
lwsl_user("Completed %s\n", interrupted == 2 ? "OK" : "failed");
return interrupted != 2;
}
static int
callback_http(struct lws *wsi, enum lws_callback_reasons reason, void *user,
void *in, size_t len)
{
uint8_t buf[LWS_PRE + 256], *start = &buf[LWS_PRE], *p = start,
*end = &buf[sizeof(buf) - 1];
const char *val;
int n;
switch (reason) {
case LWS_CALLBACK_HTTP:
if (!lws_hdr_total_length(wsi, WSI_TOKEN_GET_URI))
/* not a GET */
break;
if (strcmp((const char *)in, "/form1"))
/* not our form URL */
break;
/* we just dump the decoded things to the log */
for (n = 0; n < (int)LWS_ARRAY_SIZE(param_names); n++) {
val = lws_get_urlarg_by_name(wsi, param_names[n],
(char *)buf, sizeof(buf));
if (!val)
lwsl_user("%s: undefined\n", param_names[n]);
else
lwsl_user("%s: (len %d) '%s'\n", param_names[n],
(int)strlen((const char *)buf),buf);
}
/*
* Our response is to redirect to a static page. We could
* have generated a dynamic html page here instead.
*/
if (lws_http_redirect(wsi, HTTP_STATUS_MOVED_PERMANENTLY,
(unsigned char *)"after-form1.html",
16, &p, end) < 0)
return -1;
break;
default:
break;
}
return lws_callback_http_dummy(wsi, reason, user, in, len);
}
static int
connect_client(int idx)
{
struct lws_client_connect_info i;
if (tries == limit) {
lwsl_user("Reached limit... finishing\n");
return 0;
}
memset(&i, 0, sizeof(i));
i.context = context;
i.port = port;
i.address = server_address;
i.path = "/";
i.host = i.address;
i.origin = i.address;
i.ssl_connection = ssl_connection;
i.protocol = pro;
i.local_protocol_name = pro;
i.pwsi = &clients[idx].wsi;
clients[idx].state = CLIENT_CONNECTING;
tries++;
if (!lws_client_connect_via_info(&i)) {
clients[idx].wsi = NULL;
clients[idx].state = CLIENT_IDLE;
return 1;
}
return 0;
}
int main(int argc, const char **argv)
{
struct lws_context_creation_info info;
const char *p, *plugin_dirs[] = {
"/usr/local/share/libwebsockets-test-server/plugins",
NULL };
int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
/* for LLL_ verbosity above NOTICE to be built into lws,
* lws must have been configured and built with
* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
/* | LLL_DEBUG */;
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS minimal http server TLS | visit https://localhost:7681\n");
signal(SIGINT, sigint_handler);
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
info.port = 7681;
info.mounts = &mount;
info.error_document_404 = "/404.html";
info.options = LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT |
LWS_SERVER_OPTION_EXPLICIT_VHOSTS;
info.ssl_cert_filepath = "localhost-100y.cert";
info.ssl_private_key_filepath = "localhost-100y.key";
info.plugin_dirs = plugin_dirs;
info.pvo = &pvo;
if (lws_cmdline_option(argc, argv, "-h"))
info.options |= LWS_SERVER_OPTION_VHOST_UPG_STRICT_HOST_CHECK;
context = lws_create_context(&info);
if (!context) {
lwsl_err("lws init failed\n");
return 1;
}
info.headers = &pvo_hsbph[3];
if (!lws_create_vhost(context, &info)) {
lwsl_err("lws init failed\n");
return 1;
}
while (n >= 0 && !interrupted)
n = lws_service(context, 1000);
lws_context_destroy(context);
return 0;
}
int main(int argc, const char **argv)
{
struct lws_context_creation_info info;
struct lws_context *context;
const char *p;
int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
/* for LLL_ verbosity above NOTICE to be built into lws,
* lws must have been configured and built with
* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
/* | LLL_DEBUG */;
signal(SIGINT, sigint_handler);
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS minimal ws client tx\n");
lwsl_user(" Run minimal-ws-broker and browse to that\n");
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
info.port = CONTEXT_PORT_NO_LISTEN; /* we do not run any server */
info.protocols = protocols;
context = lws_create_context(&info);
if (!context) {
lwsl_err("lws init failed\n");
return 1;
}
while (n >= 0 && !interrupted)
n = lws_service(context, 1000);
lws_context_destroy(context);
lwsl_user("Completed\n");
return 0;
}
static int
file_upload_cb(void *data, const char *name, const char *filename,
char *buf, int len, enum lws_spa_fileupload_states state)
{
struct pss *pss = (struct pss *)data;
switch (state) {
case LWS_UFS_OPEN:
/* take a copy of the provided filename */
lws_strncpy(pss->filename, filename, sizeof(pss->filename) - 1);
/* remove any scary things like .. */
lws_filename_purify_inplace(pss->filename);
/* open a file of that name for write in the cwd */
pss->fd = lws_open(pss->filename, O_CREAT | O_TRUNC | O_RDWR, 0600);
if (pss->fd == LWS_INVALID_FILE) {
lwsl_notice("Failed to open output file %s\n",
pss->filename);
return 1;
}
break;
case LWS_UFS_FINAL_CONTENT:
case LWS_UFS_CONTENT:
if (len) {
int n;
pss->file_length += len;
n = write(pss->fd, buf, len);
if (n < len) {
lwsl_notice("Problem writing file %d\n", errno);
}
}
if (state == LWS_UFS_CONTENT)
/* wasn't the last part of the file */
break;
/* the file upload is completed */
lwsl_user("%s: upload done, written %lld to %s\n", __func__,
pss->file_length, pss->filename);
close(pss->fd);
pss->fd = LWS_INVALID_FILE;
break;
}
return 0;
}
int main(int argc, const char **argv)
{
struct lws_context_creation_info info;
struct lws_context *context;
const char *p;
int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
/* for LLL_ verbosity above NOTICE to be built into lws,
* lws must have been configured and built with
* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
/* | LLL_DEBUG */;
signal(SIGINT, sigint_handler);
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS minimal http server POST | visit http://localhost:7681\n");
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
info.port = 7681;
info.protocols = protocols;
info.mounts = &mount;
info.options =
LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE;
if (lws_cmdline_option(argc, argv, "-s")) {
info.options |= LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
info.ssl_cert_filepath = "localhost-100y.cert";
info.ssl_private_key_filepath = "localhost-100y.key";
}
context = lws_create_context(&info);
if (!context) {
lwsl_err("lws init failed\n");
return 1;
}
while (n >= 0 && !interrupted)
n = lws_service(context, 1000);
lws_context_destroy(context);
return 0;
}
int main(int argc, const char **argv)
{
struct lws_context_creation_info info;
struct lws_context *context;
const char *p;
int logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
/* for LLL_ verbosity above NOTICE to be built into lws,
* lws must have been configured and built with
* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
/* | LLL_DEBUG */;
signal(SIGINT, sigint_handler);
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS minimal ws server + threads | visit http://localhost:7681\n");
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
info.port = 7681;
info.mounts = &mount;
info.protocols = protocols;
info.pvo = &pvo; /* per-vhost options */
info.options =
LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE;
context = lws_create_context(&info);
if (!context) {
lwsl_err("lws init failed\n");
return 1;
}
/* start the threads that create content */
while (!interrupted)
if (lws_service(context, 1000))
interrupted = 1;
lws_context_destroy(context);
return 0;
}
static int
callback_http(struct lws *wsi, enum lws_callback_reasons reason,
void *user, void *in, size_t len)
{
switch (reason) {
/* because we are protocols[0] ... */
case LWS_CALLBACK_CLIENT_CONNECTION_ERROR:
lwsl_err("CLIENT_CONNECTION_ERROR: %s\n",
in ? (char *)in : "(null)");
client_wsi = NULL;
break;
case LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP:
status = lws_http_client_http_response(wsi);
lwsl_user("Connected with server response: %d\n", status);
break;
/* chunks of chunked content, with header removed */
case LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ:
lwsl_user("RECEIVE_CLIENT_HTTP_READ: read %d\n", (int)len);
#if 0 /* enable to dump the html */
{
const char *p = in;
while (len--)
if (*p < 0x7f)
putchar(*p++);
else
putchar('.');
}
#endif
return 0; /* don't passthru */
/* uninterpreted http content */
case LWS_CALLBACK_RECEIVE_CLIENT_HTTP:
{
char buffer[1024 + LWS_PRE];
char *px = buffer + LWS_PRE;
int lenx = sizeof(buffer) - LWS_PRE;
if (lws_http_client_read(wsi, &px, &lenx) < 0)
return -1;
}
return 0; /* don't passthru */
case LWS_CALLBACK_COMPLETED_CLIENT_HTTP:
lwsl_user("LWS_CALLBACK_COMPLETED_CLIENT_HTTP\n");
client_wsi = NULL;
bad = status != 200;
lws_cancel_service(lws_get_context(wsi)); /* abort poll wait */
break;
case LWS_CALLBACK_CLOSED_CLIENT_HTTP:
client_wsi = NULL;
bad = status != 200;
lws_cancel_service(lws_get_context(wsi)); /* abort poll wait */
break;
default:
break;
}
return lws_callback_http_dummy(wsi, reason, user, in, len);
}
int main(int argc, const char **argv)
{
struct lws_context_creation_info info;
struct lws_client_connect_info i;
struct lws_context *context;
const char *p;
int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
/*
* For LLL_ verbosity above NOTICE to be built into lws,
* lws must have been configured and built with
* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE
*
* | LLL_INFO | LLL_PARSER | LLL_HEADER | LLL_EXT |
* LLL_CLIENT | LLL_LATENCY | LLL_DEBUG
*/ ;
signal(SIGINT, sigint_handler);
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS minimal http client [-d<verbosity>] [-l] [--h1]\n");
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
info.options = LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
info.port = CONTEXT_PORT_NO_LISTEN; /* we do not run any server */
info.protocols = protocols;
#if defined(LWS_WITH_MBEDTLS)
/*
* OpenSSL uses the system trust store. mbedTLS has to be told which
* CA to trust explicitly.
*/
info.client_ssl_ca_filepath = "./warmcat.com.cer";
#endif
context = lws_create_context(&info);
if (!context) {
lwsl_err("lws init failed\n");
return 1;
}
memset(&i, 0, sizeof i); /* otherwise uninitialized garbage */
i.context = context;
i.ssl_connection = LCCSCF_USE_SSL;
if (lws_cmdline_option(argc, argv, "-l")) {
i.port = 7681;
i.address = "localhost";
i.ssl_connection |= LCCSCF_ALLOW_SELFSIGNED;
} else {
i.port = 443;
i.address = "warmcat.com";
}
if (lws_cmdline_option(argc, argv, "--h1"))
i.alpn = "http/1.1";
i.path = "/";
i.host = i.address;
i.origin = i.address;
i.method = "GET";
i.protocol = protocols[0].name;
i.pwsi = &client_wsi;
lws_client_connect_via_info(&i);
while (n >= 0 && client_wsi && !interrupted)
n = lws_service(context, 1000);
lws_context_destroy(context);
lwsl_user("Completed: %s\n", bad ? "failed" : "OK");
return bad;
}
int main(int argc, const char **argv)
{
const char *p;
int logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
/* for LLL_ verbosity above NOTICE to be built into lws,
* lws must have been configured and built with
* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
/* | LLL_DEBUG */;
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS minimal http server eventlib + foreign loop |"
" visit http://localhost:7681\n");
/*
* We prepare the info here, but don't use it until later in the
* timer callback, to demonstrate the independence of the foreign loop
* and lws.
*/
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
info.port = 7681;
info.mounts = &mount;
info.error_document_404 = "/404.html";
info.pcontext = &context;
if (lws_cmdline_option(argc, argv, "-s")) {
info.options |= LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
info.ssl_cert_filepath = "localhost-100y.cert";
info.ssl_private_key_filepath = "localhost-100y.key";
}
if (lws_cmdline_option(argc, argv, "--uv"))
info.options |= LWS_SERVER_OPTION_LIBUV;
else
if (lws_cmdline_option(argc, argv, "--event"))
info.options |= LWS_SERVER_OPTION_LIBEVENT;
else
if (lws_cmdline_option(argc, argv, "--ev"))
info.options |= LWS_SERVER_OPTION_LIBEV;
else {
lwsl_err("This app only makes sense when used\n");
lwsl_err(" with a foreign loop, --uv, --event, or --ev\n");
return 1;
}
lwsl_user(" This app creates a foreign event loop with a timer +\n");
lwsl_user(" signalhandler, and performs a test in three phases:\n");
lwsl_user("\n");
lwsl_user(" 1) 5s: Runs the loop with just the timer\n");
lwsl_user(" 2) 10s: create an lws context serving on localhost:7681\n");
lwsl_user(" using the same foreign loop. Destroy it after 10s.\n");
lwsl_user(" 3) 5s: Run the loop again with just the timer\n");
lwsl_user("\n");
lwsl_user(" Finally close only the timer and signalhandler and\n");
lwsl_user(" exit the loop cleanly\n");
lwsl_user("\n");
/* foreign loop specific startup and run */
#if defined(LWS_WITH_LIBUV)
if (info.options & LWS_SERVER_OPTION_LIBUV)
foreign_event_loop_init_and_run_libuv();
#endif
#if defined(LWS_WITH_LIBEVENT)
if (info.options & LWS_SERVER_OPTION_LIBEVENT)
foreign_event_loop_init_and_run_libevent();
#endif
#if defined(LWS_WITH_LIBEV)
if (info.options & LWS_SERVER_OPTION_LIBEV)
foreign_event_loop_init_and_run_libev();
#endif
lws_context_destroy(context);
/* foreign loop specific cleanup and exit */
#if defined(LWS_WITH_LIBUV)
if (info.options & LWS_SERVER_OPTION_LIBUV)
foreign_event_loop_cleanup_libuv();
#endif
#if defined(LWS_WITH_LIBEVENT)
if (info.options & LWS_SERVER_OPTION_LIBEVENT)
foreign_event_loop_cleanup_libevent();
#endif
#if defined(LWS_WITH_LIBEV)
if (info.options & LWS_SERVER_OPTION_LIBEV)
foreign_event_loop_cleanup_libev();
#endif
lwsl_user("%s: exiting...\n", __func__);
return 0;
}
int main(int argc, const char **argv)
{
struct lws_context_creation_info info;
const char *p;
int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
/* for LLL_ verbosity above NOTICE to be built into lws,
* lws must have been configured and built with
* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
/* | LLL_DEBUG */;
signal(SIGINT, sigint_handler);
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS minimal ws client SPAM\n");
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
info.options = LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
info.port = CONTEXT_PORT_NO_LISTEN; /* we do not run any server */
info.protocols = protocols;
#if defined(LWS_WITH_MBEDTLS)
/*
* OpenSSL uses the system trust store. mbedTLS has to be told which
* CA to trust explicitly.
*/
info.client_ssl_ca_filepath = "./libwebsockets.org.cer";
#endif
if ((p = lws_cmdline_option(argc, argv, "--server"))) {
server_address = p;
ssl_connection |= LCCSCF_ALLOW_SELFSIGNED;
}
if ((p = lws_cmdline_option(argc, argv, "--port")))
port = atoi(p);
if ((p = lws_cmdline_option(argc, argv, "-l")))
limit = atoi(p);
if ((p = lws_cmdline_option(argc, argv, "-c")))
concurrent = atoi(p);
if (lws_cmdline_option(argc, argv, "-n")) {
ssl_connection = 0;
info.options = 0;
}
if (concurrent > (int)LWS_ARRAY_SIZE(clients)) {
lwsl_err("%s: -c %d larger than max concurrency %d\n", __func__,
concurrent, (int)LWS_ARRAY_SIZE(clients));
return 1;
}
/*
* since we know this lws context is only ever going to be used with
* one client wsis / fds / sockets at a time, let lws know it doesn't
* have to use the default allocations for fd tables up to ulimit -n.
* It will just allocate for 1 internal and n (+ 1 http2 nwsi) that we
* will use.
*/
info.fd_limit_per_thread = 1 + concurrent + 1;
context = lws_create_context(&info);
if (!context) {
lwsl_err("lws init failed\n");
return 1;
}
while (n >= 0 && !interrupted)
n = lws_service(context, 1000);
lws_context_destroy(context);
if (tries == limit && closed == tries) {
lwsl_user("Completed\n");
return 0;
}
lwsl_err("Failed\n");
return 1;
}
static int
callback_http(struct lws *wsi, enum lws_callback_reasons reason,
void *user, void *in, size_t len)
{
char val[32];
int n;
switch (reason) {
/* because we are protocols[0] ... */
case LWS_CALLBACK_CLIENT_CONNECTION_ERROR:
lwsl_err("CLIENT_CONNECTION_ERROR: %s\n",
in ? (char *)in : "(null)");
client_wsi = NULL;
break;
case LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER:
{
unsigned char **p = (unsigned char **)in, *end = (*p) + len;
/*
* How to send a custom header in the request to the server
*/
if (lws_add_http_header_by_name(wsi,
(const unsigned char *)"dnt",
(const unsigned char *)"1", 1, p, end))
return -1;
break;
}
case LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP:
status = lws_http_client_http_response(wsi);
lwsl_user("Connected with server response: %d\n", status);
/*
* How to query custom headers (http 1.x only at the momemnt)
*
* warmcat.com sends a custom header "test-custom-header" for
* testing, it has the fixed value "hello".
*/
n = lws_hdr_custom_length(wsi, "test-custom-header:", 19);
if (n < 0)
lwsl_notice("%s: Can't find test-custom-header\n",
__func__);
else {
if (lws_hdr_custom_copy(wsi, val, sizeof(val),
"test-custom-header:", 19) < 0)
lwsl_notice("%s: custom header too long\n",
__func__);
else
lwsl_notice("%s: custom header: '%s'\n",
__func__, val);
}
break;
/* chunks of chunked content, with header removed */
case LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ:
lwsl_user("RECEIVE_CLIENT_HTTP_READ: read %d\n", (int)len);
#if 0 /* enable to dump the html */
{
const char *p = in;
while (len--)
if (*p < 0x7f)
putchar(*p++);
else
putchar('.');
}
#endif
return 0; /* don't passthru */
/* uninterpreted http content */
case LWS_CALLBACK_RECEIVE_CLIENT_HTTP:
{
char buffer[1024 + LWS_PRE];
char *px = buffer + LWS_PRE;
int lenx = sizeof(buffer) - LWS_PRE;
if (lws_http_client_read(wsi, &px, &lenx) < 0)
return -1;
}
return 0; /* don't passthru */
case LWS_CALLBACK_COMPLETED_CLIENT_HTTP:
lwsl_user("LWS_CALLBACK_COMPLETED_CLIENT_HTTP\n");
client_wsi = NULL;
bad = status != 200;
lws_cancel_service(lws_get_context(wsi)); /* abort poll wait */
break;
case LWS_CALLBACK_CLOSED_CLIENT_HTTP:
client_wsi = NULL;
bad = status != 200;
lws_cancel_service(lws_get_context(wsi)); /* abort poll wait */
break;
default:
break;
}
return lws_callback_http_dummy(wsi, reason, user, in, len);
}
static int
callback_minimal_spam(struct lws *wsi, enum lws_callback_reasons reason,
void *user, void *in, size_t len)
{
struct pss *pss = (struct pss *)user;
uint8_t ping[LWS_PRE + 125];
int n, m;
switch (reason) {
case LWS_CALLBACK_PROTOCOL_INIT:
for (n = 0; n < concurrent; n++) {
clients[n].index = n;
connect_client(n);
}
break;
case LWS_CALLBACK_CLIENT_CONNECTION_ERROR:
errors++;
lwsl_err("CLIENT_CONNECTION_ERROR: %s (try %d, est %d, closed %d, err %d)\n",
in ? (char *)in : "(null)", tries, est, closed, errors);
for (n = 0; n < concurrent; n++) {
if (clients[n].wsi == wsi) {
clients[n].wsi = NULL;
clients[n].state = CLIENT_IDLE;
connect_client(n);
break;
}
}
if (tries == closed + errors)
interrupted = 1;
break;
/* --- client callbacks --- */
case LWS_CALLBACK_CLIENT_ESTABLISHED:
lwsl_user("%s: established (try %d, est %d, closed %d, err %d)\n",
__func__, tries, est, closed, errors);
est++;
pss->conn = conn++;
lws_callback_on_writable(wsi);
break;
case LWS_CALLBACK_CLIENT_CLOSED:
closed++;
if (tries == closed + errors)
interrupted = 1;
if (tries == limit) {
lwsl_user("%s: leaving CLOSED (try %d, est %d, sent %d, closed %d, err %d)\n",
__func__, tries, est, sent, closed, errors);
break;
}
for (n = 0; n < concurrent; n++) {
if (clients[n].wsi == wsi) {
connect_client(n);
lwsl_user("%s: reopening (try %d, est %d, closed %d, err %d)\n",
__func__, tries, est, closed, errors);
break;
}
}
if (n == concurrent)
lwsl_user("CLOSED: can't find client wsi\n");
break;
case LWS_CALLBACK_CLIENT_WRITEABLE:
n = lws_snprintf((char *)ping + LWS_PRE, sizeof(ping) - LWS_PRE,
"hello %d", pss->conn);
m = lws_write(wsi, ping + LWS_PRE, n, LWS_WRITE_TEXT);
if (m < n) {
lwsl_err("sending ping failed: %d\n", m);
return -1;
}
lws_set_timeout(wsi, 1, LWS_TO_KILL_ASYNC);
break;
default:
break;
}
return lws_callback_http_dummy(wsi, reason, user, in, len);
}
static int
callback_minimal_broker(struct lws *wsi, enum lws_callback_reasons reason,
void *user, void *in, size_t len)
{
struct per_vhost_data__minimal *vhd =
(struct per_vhost_data__minimal *)
lws_protocol_vh_priv_get(lws_get_vhost(wsi),
lws_get_protocol(wsi));
const struct msg *pmsg;
void *retval;
int n, m, r = 0;
switch (reason) {
/* --- protocol lifecycle callbacks --- */
case LWS_CALLBACK_PROTOCOL_INIT:
vhd = lws_protocol_vh_priv_zalloc(lws_get_vhost(wsi),
lws_get_protocol(wsi),
sizeof(struct per_vhost_data__minimal));
vhd->context = lws_get_context(wsi);
vhd->protocol = lws_get_protocol(wsi);
vhd->vhost = lws_get_vhost(wsi);
vhd->ring = lws_ring_create(sizeof(struct msg), 8,
__minimal_destroy_message);
if (!vhd->ring)
return 1;
pthread_mutex_init(&vhd->lock_ring, NULL);
/* start the content-creating threads */
for (n = 0; n < (int)LWS_ARRAY_SIZE(vhd->pthread_spam); n++)
if (pthread_create(&vhd->pthread_spam[n], NULL,
thread_spam, vhd)) {
lwsl_err("thread creation failed\n");
r = 1;
goto init_fail;
}
if (connect_client(vhd))
lws_timed_callback_vh_protocol(vhd->vhost,
vhd->protocol, LWS_CALLBACK_USER, 1);
break;
case LWS_CALLBACK_PROTOCOL_DESTROY:
init_fail:
vhd->finished = 1;
for (n = 0; n < (int)LWS_ARRAY_SIZE(vhd->pthread_spam); n++)
if (vhd->pthread_spam[n])
pthread_join(vhd->pthread_spam[n], &retval);
if (vhd->ring)
lws_ring_destroy(vhd->ring);
pthread_mutex_destroy(&vhd->lock_ring);
return r;
case LWS_CALLBACK_CLIENT_CONNECTION_ERROR:
lwsl_err("CLIENT_CONNECTION_ERROR: %s\n",
in ? (char *)in : "(null)");
vhd->client_wsi = NULL;
lws_timed_callback_vh_protocol(vhd->vhost,
vhd->protocol, LWS_CALLBACK_USER, 1);
break;
/* --- client callbacks --- */
case LWS_CALLBACK_CLIENT_ESTABLISHED:
lwsl_user("%s: established\n", __func__);
vhd->established = 1;
break;
case LWS_CALLBACK_CLIENT_WRITEABLE:
pthread_mutex_lock(&vhd->lock_ring); /* --------- ring lock { */
pmsg = lws_ring_get_element(vhd->ring, &vhd->tail);
if (!pmsg)
goto skip;
/* notice we allowed for LWS_PRE in the payload already */
m = lws_write(wsi, ((unsigned char *)pmsg->payload) + LWS_PRE,
pmsg->len, LWS_WRITE_TEXT);
if (m < (int)pmsg->len) {
pthread_mutex_unlock(&vhd->lock_ring); /* } ring lock */
lwsl_err("ERROR %d writing to ws socket\n", m);
return -1;
}
lws_ring_consume_single_tail(vhd->ring, &vhd->tail, 1);
/* more to do for us? */
if (lws_ring_get_element(vhd->ring, &vhd->tail))
/* come back as soon as we can write more */
lws_callback_on_writable(wsi);
skip:
pthread_mutex_unlock(&vhd->lock_ring); /* } ring lock ------- */
break;
case LWS_CALLBACK_CLIENT_CLOSED:
vhd->client_wsi = NULL;
vhd->established = 0;
lws_timed_callback_vh_protocol(vhd->vhost, vhd->protocol,
LWS_CALLBACK_USER, 1);
break;
case LWS_CALLBACK_EVENT_WAIT_CANCELLED:
/*
* When the "spam" threads add a message to the ringbuffer,
* they create this event in the lws service thread context
* using lws_cancel_service().
*
* We respond by scheduling a writable callback for the
* connected client, if any.
*/
if (vhd && vhd->client_wsi && vhd->established)
lws_callback_on_writable(vhd->client_wsi);
break;
/* rate-limited client connect retries */
case LWS_CALLBACK_USER:
lwsl_notice("%s: LWS_CALLBACK_USER\n", __func__);
if (connect_client(vhd))
lws_timed_callback_vh_protocol(vhd->vhost,
vhd->protocol,
LWS_CALLBACK_USER, 1);
break;
default:
break;
}
return lws_callback_http_dummy(wsi, reason, user, in, len);
}
int main(int argc, const char **argv)
{
struct lws_tokenize ts;
lws_tokenize_elem e;
const char *p;
int n, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
/* for LLL_ verbosity above NOTICE to be built into lws,
* lws must have been configured and built with
* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
/* | LLL_DEBUG */;
int fail = 0, ok = 0, flags = 0;
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS API selftest: lws_tokenize\n");
if ((p = lws_cmdline_option(argc, argv, "-f")))
flags = atoi(p);
p = lws_cmdline_option(argc, argv, "-s");
for (n = 0; n < (int)LWS_ARRAY_SIZE(tests); n++) {
int m = 0, in_fail = fail;
struct expected *exp = tests[n].exp;
ts.start = tests[n].string;
ts.len = strlen(ts.start);
ts.flags = tests[n].flags;
do {
e = lws_tokenize(&ts);
lwsl_info("{ %s, \"%.*s\", %d }\n",
element_names[e + LWS_TOKZE_ERRS],
(int)ts.token_len, ts.token,
(int)ts.token_len);
if (m == (int)tests[n].count) {
lwsl_notice("fail: expected end earlier\n");
fail++;
break;
}
if (e != exp->e) {
lwsl_notice("fail... tok %s vs expected %s\n",
element_names[e + LWS_TOKZE_ERRS],
element_names[exp->e + LWS_TOKZE_ERRS]);
fail++;
break;
}
if (e > 0 &&
(ts.token_len != exp->len ||
memcmp(exp->value, ts.token, exp->len))) {
lwsl_notice("fail token mismatch\n");
fail++;
break;
}
m++;
exp++;
} while (e > 0);
if (fail == in_fail)
ok++;
}
if (p) {
ts.start = p;
ts.len = strlen(p);
ts.flags = flags;
printf("\t{\n\t\t\"%s\",\n"
"\t\texpected%d, LWS_ARRAY_SIZE(expected%d),\n\t\t",
p, (int)LWS_ARRAY_SIZE(tests) + 1,
(int)LWS_ARRAY_SIZE(tests) + 1);
if (!flags)
printf("0\n\t},\n");
else {
if (flags & LWS_TOKENIZE_F_MINUS_NONTERM)
printf("LWS_TOKENIZE_F_MINUS_NONTERM");
if (flags & LWS_TOKENIZE_F_AGG_COLON) {
if (flags & 1)
printf(" | ");
printf("LWS_TOKENIZE_F_AGG_COLON");
}
if (flags & LWS_TOKENIZE_F_COMMA_SEP_LIST) {
if (flags & 3)
printf(" | ");
printf("LWS_TOKENIZE_F_COMMA_SEP_LIST");
}
if (flags & LWS_TOKENIZE_F_RFC7230_DELIMS) {
if (flags & 7)
printf(" | ");
printf("LWS_TOKENIZE_F_RFC7230_DELIMS");
}
if (flags & LWS_TOKENIZE_F_DOT_NONTERM) {
if (flags & 15)
printf(" | ");
printf("LWS_TOKENIZE_F_DOT_NONTERM");
}
if (flags & LWS_TOKENIZE_F_NO_FLOATS) {
if (flags & 31)
printf(" | ");
printf("LWS_TOKENIZE_F_NO_FLOATS");
}
printf("\n\t},\n");
}
printf("\texpected%d[] = {\n", (int)LWS_ARRAY_SIZE(tests) + 1);
do {
e = lws_tokenize(&ts);
printf("\t\t{ %s, \"%.*s\", %d },\n",
element_names[e + LWS_TOKZE_ERRS],
(int)ts.token_len,
ts.token, (int)ts.token_len);
} while (e > 0);
printf("\t}\n");
}
lwsl_user("Completed: PASS: %d, FAIL: %d\n", ok, fail);
return !(ok && !fail);
}
int main(int argc, const char **argv)
{
struct lws_context_creation_info info;
struct lws_context *context;
const char *p;
int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
/* for LLL_ verbosity above NOTICE to be built into lws,
* lws must have been configured and built with
* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
/* | LLL_DEBUG */;
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS minimal http server-multivhost | visit http://localhost:7681 / 7682\n");
signal(SIGINT, sigint_handler);
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
info.options = LWS_SERVER_OPTION_EXPLICIT_VHOSTS |
LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE;
/*
* Because of LWS_SERVER_OPTION_EXPLICIT_VHOSTS, this only creates
* the context and no longer creates a default vhost
*/
context = lws_create_context(&info);
if (!context) {
lwsl_err("lws init failed\n");
return 1;
}
/* it's our job now to create the vhosts we want:
*
* - "localhost1" listen on 7681 and serve ./mount-origin-localhost1/
* - "localhost2" listen on 7682 and serve ./mount-origin-localhost2/
* - "localhost3" share 7682 and serve ./mount-origin-localhost3/
*
* Note lws supports dynamic vhost creation and destruction at runtime.
* When using multi-vhost with your own protocols, you must provide a
* pvo for each vhost naming each protocol you want enabled on it.
* minimal-ws-server-threads demonstrates how to provide pvos.
*/
info.port = 7681;
info.mounts = &mount_localhost1;
info.error_document_404 = "/404.html";
info.vhost_name = "localhost1";
if (!lws_create_vhost(context, &info)) {
lwsl_err("Failed to create first vhost\n");
goto bail;
}
info.port = 7682;
info.mounts = &mount_localhost2;
info.error_document_404 = "/404.html";
info.vhost_name = "localhost2";
if (!lws_create_vhost(context, &info)) {
lwsl_err("Failed to create second vhost\n");
goto bail;
}
/* a second vhost listens on port 7682 */
info.mounts = &mount_localhost3;
info.error_document_404 = "/404.html";
info.vhost_name = "localhost3";
info.finalize = vh_destruction_notification;
info.finalize_arg = NULL;
if (!lws_create_vhost(context, &info)) {
lwsl_err("Failed to create third vhost\n");
goto bail;
}
if (lws_cmdline_option(argc, argv, "--die-after-vhost")) {
lwsl_warn("bailing after creating vhosts\n");
goto bail;
}
while (n >= 0 && !interrupted)
n = lws_service(context, 1000);
bail:
lws_context_destroy(context);
return 0;
}
int main(int argc, const char **argv)
{
struct lws_context_creation_info info;
struct lws_context *context;
const char *p;
int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
/* for LLL_ verbosity above NOTICE to be built into lws,
* lws must have been configured and built with
* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
/* | LLL_DEBUG */;
signal(SIGINT, sigint_handler);
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS minimal http server dynamic | visit http://localhost:7681\n");
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
info.options = LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT |
LWS_SERVER_OPTION_EXPLICIT_VHOSTS;
/* for testing ah queue, not useful in real world */
if (lws_cmdline_option(argc, argv, "--ah1"))
info.max_http_header_pool = 1;
context = lws_create_context(&info);
if (!context) {
lwsl_err("lws init failed\n");
return 1;
}
/* http on 7681 */
info.port = 7681;
info.protocols = protocols;
info.mounts = &mount;
info.vhost_name = "http";
if (!lws_create_vhost(context, &info)) {
lwsl_err("Failed to create tls vhost\n");
goto bail;
}
/* https on 7682 */
info.port = 7682;
info.error_document_404 = "/404.html";
info.ssl_cert_filepath = "localhost-100y.cert";
info.ssl_private_key_filepath = "localhost-100y.key";
info.vhost_name = "localhost";
if (!lws_create_vhost(context, &info)) {
lwsl_err("Failed to create tls vhost\n");
goto bail;
}
while (n >= 0 && !interrupted)
n = lws_service(context, 1000);
bail:
lws_context_destroy(context);
return 0;
}
void vh_destruction_notification(struct lws_vhost *vh, void *arg)
{
lwsl_user("%s: called, arg: %p\n", __func__, arg);
}
static int
callback_http(struct lws *wsi, enum lws_callback_reasons reason, void *user,
void *in, size_t len)
{
struct pss *pss = (struct pss *)user;
uint8_t buf[LWS_PRE + LWS_RECOMMENDED_MIN_HEADER_SPACE], *start = &buf[LWS_PRE],
*p = start, *end = &buf[sizeof(buf) - 1];
int n;
switch (reason) {
case LWS_CALLBACK_HTTP:
/*
* Manually report that our form target URL exists
*
* you can also do this by adding a mount for the form URL
* to the protocol with type LWSMPRO_CALLBACK, then no need
* to trap LWS_CALLBACK_HTTP.
*/
if (!strcmp((const char *)in, "/form1"))
/* assertively allow it to exist in the URL space */
return 0;
/* default to 404-ing the URL if not mounted */
break;
case LWS_CALLBACK_HTTP_BODY:
/* create the POST argument parser if not already existing */
if (!pss->spa) {
pss->spa = lws_spa_create(wsi, param_names,
LWS_ARRAY_SIZE(param_names), 1024,
NULL, NULL); /* no file upload */
if (!pss->spa)
return -1;
}
/* let it parse the POST data */
if (lws_spa_process(pss->spa, in, (int)len))
return -1;
break;
case LWS_CALLBACK_HTTP_BODY_COMPLETION:
/* inform the spa no more payload data coming */
lwsl_user("LWS_CALLBACK_HTTP_BODY_COMPLETION\n");
lws_spa_finalize(pss->spa);
/* we just dump the decoded things to the log */
for (n = 0; n < (int)LWS_ARRAY_SIZE(param_names); n++) {
if (!lws_spa_get_string(pss->spa, n))
lwsl_user("%s: undefined\n", param_names[n]);
else
lwsl_user("%s: (len %d) '%s'\n",
param_names[n],
lws_spa_get_length(pss->spa, n),
lws_spa_get_string(pss->spa, n));
}
/*
* Our response is to redirect to a static page. We could
* have generated a dynamic html page here instead.
*/
if (lws_http_redirect(wsi, HTTP_STATUS_MOVED_PERMANENTLY,
(unsigned char *)"after-form1.html",
16, &p, end) < 0)
return -1;
break;
case LWS_CALLBACK_HTTP_DROP_PROTOCOL:
/* called when our wsi user_space is going to be destroyed */
if (pss->spa) {
lws_spa_destroy(pss->spa);
pss->spa = NULL;
}
break;
default:
break;
}
return lws_callback_http_dummy(wsi, reason, user, in, len);
}
static int
callback_minimal_broker(struct lws *wsi, enum lws_callback_reasons reason,
void *user, void *in, size_t len)
{
struct pss *pss = (struct pss *)user;
int n;
switch (reason) {
case LWS_CALLBACK_PROTOCOL_INIT:
goto try;
case LWS_CALLBACK_CLIENT_CONNECTION_ERROR:
lwsl_err("CLIENT_CONNECTION_ERROR: %s\n",
in ? (char *)in : "(null)");
client_wsi = NULL;
lws_timed_callback_vh_protocol(lws_get_vhost(wsi),
lws_get_protocol(wsi), LWS_CALLBACK_USER, 1);
break;
/* --- client callbacks --- */
case LWS_CALLBACK_CLIENT_ESTABLISHED:
lwsl_user("%s: established\n", __func__);
lws_set_timer_usecs(wsi, 5 * LWS_USEC_PER_SEC);
break;
case LWS_CALLBACK_CLIENT_WRITEABLE:
if (pss->send_a_ping) {
uint8_t ping[LWS_PRE + 125];
int m;
pss->send_a_ping = 0;
n = 0;
if (!zero_length_ping)
n = lws_snprintf((char *)ping + LWS_PRE, 125,
"ping body!");
lwsl_user("Sending PING %d...\n", n);
m = lws_write(wsi, ping + LWS_PRE, n, LWS_WRITE_PING);
if (m < n) {
lwsl_err("sending ping failed: %d\n", m);
return -1;
}
lws_callback_on_writable(wsi);
}
break;
case LWS_CALLBACK_WS_CLIENT_DROP_PROTOCOL:
client_wsi = NULL;
lws_timed_callback_vh_protocol(lws_get_vhost(wsi),
lws_get_protocol(wsi),
LWS_CALLBACK_USER, 1);
break;
case LWS_CALLBACK_CLIENT_RECEIVE_PONG:
lwsl_user("LWS_CALLBACK_CLIENT_RECEIVE_PONG\n");
lwsl_hexdump_notice(in, len);
break;
case LWS_CALLBACK_TIMER:
/* we want to send a ws PING every few seconds */
pss->send_a_ping = 1;
lws_callback_on_writable(wsi);
lws_set_timer_usecs(wsi, 5 * LWS_USEC_PER_SEC);
break;
/* rate-limited client connect retries */
case LWS_CALLBACK_USER:
lwsl_notice("%s: LWS_CALLBACK_USER\n", __func__);
try:
if (connect_client())
lws_timed_callback_vh_protocol(lws_get_vhost(wsi),
lws_get_protocol(wsi),
LWS_CALLBACK_USER, 1);
break;
default:
break;
}
return lws_callback_http_dummy(wsi, reason, user, in, len);
}
static const struct lws_protocols protocols[] = {
{
"lws-ping-test",
callback_minimal_broker,
sizeof(struct pss),
0,
},
{ NULL, NULL, 0, 0 }
};
static void
sigint_handler(int sig)
{
interrupted = 1;
}
int main(int argc, const char **argv)
{
struct lws_context_creation_info info;
const char *p;
int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
/* for LLL_ verbosity above NOTICE to be built into lws,
* lws must have been configured and built with
* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
/* | LLL_DEBUG */;
signal(SIGINT, sigint_handler);
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS minimal ws client PING\n");
memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
info.options = LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
info.port = CONTEXT_PORT_NO_LISTEN; /* we do not run any server */
info.protocols = protocols;
#if defined(LWS_WITH_MBEDTLS)
/*
* OpenSSL uses the system trust store. mbedTLS has to be told which
* CA to trust explicitly.
*/
info.client_ssl_ca_filepath = "./libwebsockets.org.cer";
#endif
if (lws_cmdline_option(argc, argv, "-z"))
zero_length_ping = 1;
if ((p = lws_cmdline_option(argc, argv, "--protocol")))
pro = p;
if ((p = lws_cmdline_option(argc, argv, "--server"))) {
server_address = p;
pro = "lws-minimal";
ssl_connection |= LCCSCF_ALLOW_SELFSIGNED;
}
if ((p = lws_cmdline_option(argc, argv, "--port")))
port = atoi(p);
/*
* since we know this lws context is only ever going to be used with
* one client wsis / fds / sockets at a time, let lws know it doesn't
* have to use the default allocations for fd tables up to ulimit -n.
* It will just allocate for 1 internal and 1 (+ 1 http2 nwsi) that we
* will use.
*/
info.fd_limit_per_thread = 1 + 1 + 1;
context = lws_create_context(&info);
if (!context) {
lwsl_err("lws init failed\n");
return 1;
}
while (n >= 0 && !interrupted)
n = lws_service(context, 1000);
lws_context_destroy(context);
lwsl_user("Completed\n");
return 0;
}
static int
callback_minimal(struct lws *wsi, enum lws_callback_reasons reason,
void *user, void *in, size_t len)
{
struct per_session_data__minimal *pss =
(struct per_session_data__minimal *)user;
struct per_vhost_data__minimal *vhd =
(struct per_vhost_data__minimal *)
lws_protocol_vh_priv_get(lws_get_vhost(wsi),
lws_get_protocol(wsi));
const struct msg *pmsg;
struct msg amsg;
char buf[32];
int n, m;
switch (reason) {
case LWS_CALLBACK_PROTOCOL_INIT:
vhd = lws_protocol_vh_priv_zalloc(lws_get_vhost(wsi),
lws_get_protocol(wsi),
sizeof(struct per_vhost_data__minimal));
vhd->context = lws_get_context(wsi);
vhd->protocol = lws_get_protocol(wsi);
vhd->vhost = lws_get_vhost(wsi);
vhd->ring = lws_ring_create(sizeof(struct msg), 8,
__minimal_destroy_message);
if (!vhd->ring)
return 1;
break;
case LWS_CALLBACK_PROTOCOL_DESTROY:
lws_ring_destroy(vhd->ring);
break;
case LWS_CALLBACK_ESTABLISHED:
pss->tail = lws_ring_get_oldest_tail(vhd->ring);
pss->wsi = wsi;
if (lws_hdr_copy(wsi, buf, sizeof(buf), WSI_TOKEN_GET_URI) > 0)
pss->publishing = !strcmp(buf, "/publisher");
if (!pss->publishing)
/* add subscribers to the list of live pss held in the vhd */
lws_ll_fwd_insert(pss, pss_list, vhd->pss_list);
break;
case LWS_CALLBACK_CLOSED:
/* remove our closing pss from the list of live pss */
lws_ll_fwd_remove(struct per_session_data__minimal, pss_list,
pss, vhd->pss_list);
break;
case LWS_CALLBACK_SERVER_WRITEABLE:
if (pss->publishing)
break;
pmsg = lws_ring_get_element(vhd->ring, &pss->tail);
if (!pmsg)
break;
/* notice we allowed for LWS_PRE in the payload already */
m = lws_write(wsi, ((unsigned char *)pmsg->payload) + LWS_PRE,
pmsg->len, LWS_WRITE_TEXT);
if (m < (int)pmsg->len) {
lwsl_err("ERROR %d writing to ws socket\n", m);
return -1;
}
lws_ring_consume_and_update_oldest_tail(
vhd->ring, /* lws_ring object */
struct per_session_data__minimal, /* type of objects with tails */
&pss->tail, /* tail of guy doing the consuming */
1, /* number of payload objects being consumed */
vhd->pss_list, /* head of list of objects with tails */
tail, /* member name of tail in objects with tails */
pss_list /* member name of next object in objects with tails */
);
/* more to do? */
if (lws_ring_get_element(vhd->ring, &pss->tail))
/* come back as soon as we can write more */
lws_callback_on_writable(pss->wsi);
break;
case LWS_CALLBACK_RECEIVE:
if (!pss->publishing)
break;
/*
* For test, our policy is ignore publishing when there are
* no subscribers connected.
*/
if (!vhd->pss_list)
break;
n = (int)lws_ring_get_count_free_elements(vhd->ring);
if (!n) {
lwsl_user("dropping!\n");
break;
}
amsg.len = len;
/* notice we over-allocate by LWS_PRE */
amsg.payload = malloc(LWS_PRE + len);
if (!amsg.payload) {
lwsl_user("OOM: dropping\n");
break;
}
memcpy((char *)amsg.payload + LWS_PRE, in, len);
if (!lws_ring_insert(vhd->ring, &amsg, 1)) {
__minimal_destroy_message(&amsg);
lwsl_user("dropping 2!\n");
break;
}
/*
* let every subscriber know we want to write something
* on them as soon as they are ready
*/
lws_start_foreach_llp(struct per_session_data__minimal **,
ppss, vhd->pss_list) {
if (!(*ppss)->publishing)
lws_callback_on_writable((*ppss)->wsi);
} lws_end_foreach_llp(ppss, pss_list);
break;
default:
break;
}
return 0;
}
