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 ps_websockets_init (ps_transport_callbacks * callback) {
if (g_atomic_int_get(&stopping)) {
return -1;
}
if (callback == NULL) {
return -1;
}
gateway = callback;
struct lws * wsi;
/* Set Log level */
lws_set_log_level (0, NULL);
/* Prepare context */
struct lws_context_creation_info info;
struct lws_client_connect_info cinfo;
memset(&info, 0, sizeof info);
memset(&cinfo, 0, sizeof cinfo);
info.port = CONTEXT_PORT_NO_LISTEN;
info.iface = NULL;
info.protocols = wss_protocols;
info.extensions = NULL; //lws_get_internal_extensions();
info.ssl_cert_filepath = NULL;
info.ssl_private_key_filepath = NULL;
info.gid = -1;
info.uid = -1;
info.options = 0;
/* Create the websockets context */
wss = lws_create_context(&info);
cinfo.context = wss;
cinfo.ssl_connection = 0;
cinfo.host = host;
cinfo.address = host;
cinfo.port = wsport;
cinfo.path = path;
cinfo.protocol = "ps-protocol"; //wss_protocols.name;
GError * error = NULL;
if (wss != NULL) {
/* Connect to the server */
wsi = lws_client_connect_via_info (&cinfo);
/*TODO: somehow, check if the connection is established?*/
wss_thread = g_thread_try_new("websockets thread", &ps_websockets_thread, wss, &error);
if (!wss_thread) {
g_atomic_int_set(&initialized, 0);
PS_LOG (LOG_ERR,"Got error %d (%s) trying to launch the wss thread...\n",
error->code, error->message ? error->message : "??");
return -1;
}
}
/* done */
g_atomic_int_set(&initialized, 1);
return 0;
}
JNIEXPORT jboolean JNICALL jni_connectLws(JNIEnv *env, jobject obj)
{
struct lws_client_connect_info info_ws;
memset(&info_ws, 0, sizeof(info_ws));
info_ws.port = port;
info_ws.address = address;
info_ws.path = "/";
info_ws.context = context;
info_ws.ssl_connection = use_ssl;
info_ws.host = address;
info_ws.origin = address;
info_ws.ietf_version_or_minus_one = -1;
info_ws.client_exts = exts;
info_ws.protocol = protocols[PROTOCOL_DUMB_INCREMENT].name;
// connect
wsi = lws_client_connect_via_info(&info_ws);
if(wsi == NULL ){
// Error
emit_log(LLL_ERR, "Protocol failed to connect.");
return JNI_FALSE;
}
return JNI_TRUE;
}
void FWebSocket::Connect(){
#if !PLATFORM_HTML5
struct lws_client_connect_info ConnectInfo = {
Context, TCHAR_TO_ANSI(*StrInetAddress), InetPort, false, "/", TCHAR_TO_ANSI(*StrInetAddress), TCHAR_TO_ANSI(*StrInetAddress), Protocols[1].name, -1, this
};
Wsi = lws_client_connect_via_info(&ConnectInfo);
check(Wsi);
#else // PLATFORM_HTML5
SockFd = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
if (SockFd == -1) {
UE_LOG(LogHTML5Networking, Error, TEXT("Socket creationg failed "));
}
else
{
UE_LOG(LogHTML5Networking, Warning, TEXT(" Socked %d created "), SockFd);
}
fcntl(SockFd, F_SETFL, O_NONBLOCK);
#endif
// Windows XP does not have support for inet_pton
#if PLATFORM_WINDOWS && _WIN32_WINNT <= 0x0502
memset(&RemoteAddr, 0, sizeof(RemoteAddr));
int32 SizeOfRemoteAddr = sizeof(RemoteAddr);
// Force ServerAddress into non-const array. API doesn't modify contents but old API still requires non-const string
if (WSAStringToAddress(StrInetAddress.GetCharArray().GetData(), AF_INET, NULL, (sockaddr*)&RemoteAddr, &SizeOfRemoteAddr) != 0)
{
UE_LOG(LogHTML5Networking, Warning, TEXT("WSAStringToAddress failed "));
return;
}
RemoteAddr.sin_family = AF_INET;
RemoteAddr.sin_port = htons(InetPort);
#else
memset(&RemoteAddr, 0, sizeof(RemoteAddr));
RemoteAddr.sin_family = AF_INET;
RemoteAddr.sin_port = htons(InetPort);
if (inet_pton(AF_INET, TCHAR_TO_ANSI(*StrInetAddress), &RemoteAddr.sin_addr) != 1)
{
UE_LOG(LogHTML5Networking, Warning, TEXT("inet_pton failed "));
return;
}
#endif
#if PLATFORM_HTML5
int Ret = connect(SockFd, (struct sockaddr *)&RemoteAddr, sizeof(RemoteAddr));
UE_LOG(LogHTML5Networking, Warning, TEXT(" Connect socket returned %d"), Ret);
#endif
IsDestroyed = false;
}
static int
connect_client(struct per_vhost_data__minimal *vhd)
{
vhd->i.context = vhd->context;
vhd->i.port = 7681;
vhd->i.address = "localhost";
vhd->i.path = "/publisher";
vhd->i.host = vhd->i.address;
vhd->i.origin = vhd->i.address;
vhd->i.ssl_connection = 0;
vhd->i.protocol = "lws-minimal-broker";
vhd->i.pwsi = &vhd->client_wsi;
return !lws_client_connect_via_info(&vhd->i);
}
static int
connect_client(void)
{
struct lws_client_connect_info i;
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 = "lws-ping-test";
i.pwsi = &client_wsi;
return !lws_client_connect_via_info(&i);
}
/*
* Notice: trashes i and url
*/
static struct lws *
lws_acme_client_connect(struct lws_context *context, struct lws_vhost *vh,
struct lws **pwsi, struct lws_client_connect_info *i,
char *url, const char *method)
{
const char *prot, *p;
char path[200], _url[256];
struct lws *wsi;
memset(i, 0, sizeof(*i));
i->port = 443;
lws_strncpy(_url, url, sizeof(_url));
if (lws_parse_uri(_url, &prot, &i->address, &i->port, &p)) {
lwsl_err("unable to parse uri %s\n", url);
return NULL;
}
/* add back the leading / on path */
path[0] = '/';
lws_strncpy(path + 1, p, sizeof(path) - 1);
i->path = path;
i->context = context;
i->vhost = vh;
i->ssl_connection = 1;
i->host = i->address;
i->origin = i->address;
i->method = method;
i->pwsi = pwsi;
i->protocol = "lws-acme-client";
wsi = lws_client_connect_via_info(i);
if (!wsi) {
lws_snprintf(path, sizeof(path) - 1,
"Unable to connect to %s", url);
lwsl_notice("%s: %s\n", __func__, path);
lws_acme_report_status(vh, LWS_CUS_FAILED, path);
}
return wsi;
}
LWS_VISIBLE struct lws *
lws_client_connect(struct lws_context *context, const char *address,
int port, int ssl_connection, const char *path,
const char *host, const char *origin,
const char *protocol, int ietf_version_or_minus_one)
{
struct lws_client_connect_info i;
memset(&i, 0, sizeof(i));
i.context = context;
i.address = address;
i.port = port;
i.ssl_connection = ssl_connection;
i.path = path;
i.host = host;
i.origin = origin;
i.protocol = protocol;
i.ietf_version_or_minus_one = ietf_version_or_minus_one;
i.userdata = NULL;
return lws_client_connect_via_info(&i);
}
int callback_http(struct lws *wsi, enum lws_callback_reasons reason, void *user,
void *in, size_t len)
{
struct per_session_data__http *pss =
(struct per_session_data__http *)user;
unsigned char buffer[4096 + LWS_PRE];
unsigned long amount, file_len, sent;
char leaf_path[1024];
const char *mimetype;
char *other_headers;
unsigned char *end, *start;
struct timeval tv;
unsigned char *p;
#ifndef LWS_NO_CLIENT
struct per_session_data__http *pss1;
struct lws *wsi1;
#endif
char buf[256];
char b64[64];
int n, m;
#ifdef EXTERNAL_POLL
struct lws_pollargs *pa = (struct lws_pollargs *)in;
#endif
switch (reason) {
case LWS_CALLBACK_HTTP:
lwsl_info("lws_http_serve: %s\n",in);
if (debug_level & LLL_INFO) {
dump_handshake_info(wsi);
/* dump the individual URI Arg parameters */
n = 0;
while (lws_hdr_copy_fragment(wsi, buf, sizeof(buf),
WSI_TOKEN_HTTP_URI_ARGS, n) > 0) {
lwsl_notice("URI Arg %d: %s\n", ++n, buf);
}
}
{
lws_get_peer_simple(wsi, buf, sizeof(buf));
lwsl_info("HTTP connect from %s\n", buf);
}
if (len < 1) {
lws_return_http_status(wsi,
HTTP_STATUS_BAD_REQUEST, NULL);
goto try_to_reuse;
}
#ifndef LWS_NO_CLIENT
if (!strncmp(in, "/proxytest", 10)) {
struct lws_client_connect_info i;
char *rootpath = "/";
const char *p = (const char *)in;
if (lws_get_child(wsi))
break;
pss->client_finished = 0;
memset(&i,0, sizeof(i));
i.context = lws_get_context(wsi);
i.address = "git.libwebsockets.org";
i.port = 80;
i.ssl_connection = 0;
if (p[10])
i.path = (char *)in + 10;
else
i.path = rootpath;
i.host = "git.libwebsockets.org";
i.origin = NULL;
i.method = "GET";
i.parent_wsi = wsi;
i.uri_replace_from = "git.libwebsockets.org/";
i.uri_replace_to = "/proxytest/";
if (!lws_client_connect_via_info(&i)) {
lwsl_err("proxy connect fail\n");
break;
}
break;
}
#endif
#if 1
/* this example server has no concept of directories */
if (strchr((const char *)in + 1, '/')) {
lws_return_http_status(wsi, HTTP_STATUS_NOT_ACCEPTABLE, NULL);
goto try_to_reuse;
}
#endif
/* if a legal POST URL, let it continue and accept data */
if (lws_hdr_total_length(wsi, WSI_TOKEN_POST_URI))
return 0;
/* check for the "send a big file by hand" example case */
if (!strcmp((const char *)in, "/leaf.jpg")) {
if (strlen(resource_path) > sizeof(leaf_path) - 10)
return -1;
sprintf(leaf_path, "%s/leaf.jpg", resource_path);
/* well, let's demonstrate how to send the hard way */
p = buffer + LWS_PRE;
end = p + sizeof(buffer) - LWS_PRE;
pss->fd = lws_plat_file_open(wsi, leaf_path, &file_len,
LWS_O_RDONLY);
if (pss->fd == LWS_INVALID_FILE) {
lwsl_err("failed to open file %s\n", leaf_path);
return -1;
}
/*
* we will send a big jpeg file, but it could be
* anything. Set the Content-Type: appropriately
* so the browser knows what to do with it.
*
* Notice we use the APIs to build the header, which
* will do the right thing for HTTP 1/1.1 and HTTP2
* depending on what connection it happens to be working
* on
*/
if (lws_add_http_header_status(wsi, 200, &p, end))
return 1;
if (lws_add_http_header_by_token(wsi, WSI_TOKEN_HTTP_SERVER,
(unsigned char *)"libwebsockets",
13, &p, end))
return 1;
if (lws_add_http_header_by_token(wsi,
WSI_TOKEN_HTTP_CONTENT_TYPE,
(unsigned char *)"image/jpeg",
10, &p, end))
return 1;
if (lws_add_http_header_content_length(wsi,
file_len, &p,
end))
return 1;
if (lws_finalize_http_header(wsi, &p, end))
return 1;
/*
* send the http headers...
* this won't block since it's the first payload sent
* on the connection since it was established
* (too small for partial)
*
* Notice they are sent using LWS_WRITE_HTTP_HEADERS
* which also means you can't send body too in one step,
* this is mandated by changes in HTTP2
*/
*p = '\0';
lwsl_info("%s\n", buffer + LWS_PRE);
n = lws_write(wsi, buffer + LWS_PRE,
p - (buffer + LWS_PRE),
LWS_WRITE_HTTP_HEADERS);
if (n < 0) {
lws_plat_file_close(wsi, pss->fd);
return -1;
}
/*
* book us a LWS_CALLBACK_HTTP_WRITEABLE callback
*/
lws_callback_on_writable(wsi);
break;
}
/* if not, send a file the easy way */
if (!strncmp(in, "/cgit-data/", 11)) {
in = (char *)in + 11;
strcpy(buf, "/usr/share/cgit");
} else
strcpy(buf, resource_path);
if (strcmp(in, "/")) {
if (*((const char *)in) != '/')
strcat(buf, "/");
strncat(buf, in, sizeof(buf) - strlen(buf) - 1);
} else /* default file to serve */
strcat(buf, "/test.html");
buf[sizeof(buf) - 1] = '\0';
/* refuse to serve files we don't understand */
mimetype = get_mimetype(buf);
if (!mimetype) {
lwsl_err("Unknown mimetype for %s\n", buf);
lws_return_http_status(wsi,
HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE, NULL);
return -1;
}
/* demonstrates how to set a cookie on / */
other_headers = leaf_path;
p = (unsigned char *)leaf_path;
if (!strcmp((const char *)in, "/") &&
!lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_COOKIE)) {
/* this isn't very unguessable but it'll do for us */
gettimeofday(&tv, NULL);
n = sprintf(b64, "test=LWS_%u_%u_COOKIE;Max-Age=360000",
(unsigned int)tv.tv_sec,
(unsigned int)tv.tv_usec);
if (lws_add_http_header_by_name(wsi,
(unsigned char *)"set-cookie:",
(unsigned char *)b64, n, &p,
(unsigned char *)leaf_path + sizeof(leaf_path)))
return 1;
}
if (lws_is_ssl(wsi) && lws_add_http_header_by_name(wsi,
(unsigned char *)
"Strict-Transport-Security:",
(unsigned char *)
"max-age=15768000 ; "
"includeSubDomains", 36, &p,
(unsigned char *)leaf_path +
sizeof(leaf_path)))
return 1;
n = (char *)p - leaf_path;
n = lws_serve_http_file(wsi, buf, mimetype, other_headers, n);
if (n < 0 || ((n > 0) && lws_http_transaction_completed(wsi)))
return -1; /* error or can't reuse connection: close the socket */
/*
* notice that the sending of the file completes asynchronously,
* we'll get a LWS_CALLBACK_HTTP_FILE_COMPLETION callback when
* it's done
*/
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,
ARRAY_SIZE(param_names), 1024,
file_upload_cb, pss);
if (!pss->spa)
return -1;
pss->filename[0] = '\0';
pss->file_length = 0;
}
/* let it parse the POST data */
if (lws_spa_process(pss->spa, in, len))
return -1;
break;
case LWS_CALLBACK_HTTP_BODY_COMPLETION:
lwsl_debug("LWS_CALLBACK_HTTP_BODY_COMPLETION\n");
/*
* the whole of the sent body arrived,
* respond to the client with a redirect to show the
* results
*/
/* call to inform no more payload data coming */
lws_spa_finalize(pss->spa);
p = (unsigned char *)pss->result + LWS_PRE;
end = p + sizeof(pss->result) - LWS_PRE - 1;
p += sprintf((char *)p,
"<html><body><h1>Form results (after urldecoding)</h1>"
"<table><tr><td>Name</td><td>Length</td><td>Value</td></tr>");
for (n = 0; n < ARRAY_SIZE(param_names); n++)
p += lws_snprintf((char *)p, end - p,
"<tr><td><b>%s</b></td><td>%d</td><td>%s</td></tr>",
param_names[n],
lws_spa_get_length(pss->spa, n),
lws_spa_get_string(pss->spa, n));
p += lws_snprintf((char *)p, end - p, "</table><br><b>filename:</b> %s, <b>length</b> %ld",
pss->filename, pss->file_length);
p += lws_snprintf((char *)p, end - p, "</body></html>");
pss->result_len = p - (unsigned char *)(pss->result + LWS_PRE);
p = buffer + LWS_PRE;
start = p;
end = p + sizeof(buffer) - LWS_PRE;
if (lws_add_http_header_status(wsi, 200, &p, end))
return 1;
if (lws_add_http_header_by_token(wsi, WSI_TOKEN_HTTP_CONTENT_TYPE,
(unsigned char *)"text/html", 9, &p, end))
return 1;
if (lws_add_http_header_content_length(wsi, pss->result_len, &p, end))
return 1;
if (lws_finalize_http_header(wsi, &p, end))
return 1;
n = lws_write(wsi, start, p - start, LWS_WRITE_HTTP_HEADERS);
if (n < 0)
return 1;
n = lws_write(wsi, (unsigned char *)pss->result + LWS_PRE,
pss->result_len, LWS_WRITE_HTTP);
if (n < 0)
return 1;
goto try_to_reuse;
case LWS_CALLBACK_HTTP_DROP_PROTOCOL:
lwsl_debug("LWS_CALLBACK_HTTP_DROP_PROTOCOL\n");
/* called when our wsi user_space is going to be destroyed */
if (pss->spa) {
lws_spa_destroy(pss->spa);
pss->spa = NULL;
}
break;
case LWS_CALLBACK_HTTP_FILE_COMPLETION:
goto try_to_reuse;
case LWS_CALLBACK_HTTP_WRITEABLE:
lwsl_info("LWS_CALLBACK_HTTP_WRITEABLE\n");
if (pss->client_finished)
return -1;
if (pss->fd == LWS_INVALID_FILE)
goto try_to_reuse;
#ifndef LWS_NO_CLIENT
if (pss->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.
*/
pss->reason_bf &= ~2;
wsi1 = lws_get_child(wsi);
if (!wsi1)
break;
if (lws_http_client_read(wsi1, &px, &lenx) < 0)
goto bail;
if (pss->client_finished)
return -1;
break;
}
#endif
/*
* we can send more of whatever it is we were sending
*/
sent = 0;
do {
/* we'd like the send this much */
n = sizeof(buffer) - LWS_PRE;
/* but if the peer told us he wants less, we can adapt */
m = lws_get_peer_write_allowance(wsi);
/* -1 means not using a protocol that has this info */
if (m == 0)
/* right now, peer can't handle anything */
goto later;
if (m != -1 && m < n)
/* he couldn't handle that much */
n = m;
n = lws_plat_file_read(wsi, pss->fd,
&amount, buffer + LWS_PRE, n);
/* problem reading, close conn */
if (n < 0) {
lwsl_err("problem reading file\n");
goto bail;
}
n = (int)amount;
/* sent it all, close conn */
if (n == 0)
goto penultimate;
/*
* To support HTTP2, must take care about preamble space
*
* identification of when we send the last payload frame
* is handled by the library itself if you sent a
* content-length header
*/
m = lws_write(wsi, buffer + LWS_PRE, n, LWS_WRITE_HTTP);
if (m < 0) {
lwsl_err("write failed\n");
/* write failed, close conn */
goto bail;
}
if (m) /* while still active, extend timeout */
lws_set_timeout(wsi, PENDING_TIMEOUT_HTTP_CONTENT, 5);
sent += m;
} while (!lws_send_pipe_choked(wsi) && (sent < 1024 * 1024));
later:
lws_callback_on_writable(wsi);
break;
penultimate:
lws_plat_file_close(wsi, pss->fd);
pss->fd = LWS_INVALID_FILE;
goto try_to_reuse;
bail:
lws_plat_file_close(wsi, pss->fd);
return -1;
/*
* callback for confirming to continue with client IP appear in
* protocol 0 callback since no websocket protocol has been agreed
* yet. You can just ignore this if you won't filter on client IP
* since the default unhandled callback return is 0 meaning let the
* connection continue.
*/
case LWS_CALLBACK_FILTER_NETWORK_CONNECTION:
/* if we returned non-zero from here, we kill the connection */
break;
#ifndef LWS_NO_CLIENT
case LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP: {
char ctype[64], ctlen = 0;
lwsl_err("LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP\n");
p = buffer + LWS_PRE;
end = p + sizeof(buffer) - LWS_PRE;
if (lws_add_http_header_status(lws_get_parent(wsi), 200, &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", buffer + LWS_PRE);
n = lws_write(lws_get_parent(wsi), buffer + LWS_PRE,
p - (buffer + LWS_PRE),
LWS_WRITE_HTTP_HEADERS);
if (n < 0)
return -1;
break; }
case LWS_CALLBACK_CLOSED_CLIENT_HTTP:
//lwsl_err("LWS_CALLBACK_CLOSED_CLIENT_HTTP\n");
return -1;
break;
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;
// lwsl_err("LWS_CALLBACK_RECEIVE_CLIENT_HTTP: wsi %p: sock: %d, parent_wsi: %p, parent_sock:%d, len %d\n",
// wsi, lws_get_socket_fd(wsi),
// lws_get_parent(wsi),
// lws_get_socket_fd(lws_get_parent(wsi)), len);
pss1 = lws_wsi_user(lws_get_parent(wsi));
pss1->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", len);
assert(lws_get_parent(wsi));
m = lws_write(lws_get_parent(wsi), (unsigned char *)in,
len, LWS_WRITE_HTTP);
if (m < 0)
return -1;
break;
case LWS_CALLBACK_COMPLETED_CLIENT_HTTP:
//lwsl_err("LWS_CALLBACK_COMPLETED_CLIENT_HTTP\n");
assert(lws_get_parent(wsi));
if (!lws_get_parent(wsi))
break;
pss1 = lws_wsi_user(lws_get_parent(wsi));
pss1->client_finished = 1;
break;
#endif
/*
* callbacks for managing the external poll() array appear in
* protocol 0 callback
*/
case LWS_CALLBACK_LOCK_POLL:
/*
* lock mutex to protect pollfd state
* called before any other POLL related callback
* if protecting wsi lifecycle change, len == 1
*/
test_server_lock(len);
break;
case LWS_CALLBACK_UNLOCK_POLL:
/*
* unlock mutex to protect pollfd state when
* called after any other POLL related callback
* if protecting wsi lifecycle change, len == 1
*/
test_server_unlock(len);
break;
#ifdef EXTERNAL_POLL
case LWS_CALLBACK_ADD_POLL_FD:
if (count_pollfds >= max_poll_elements) {
lwsl_err("LWS_CALLBACK_ADD_POLL_FD: too many sockets to track\n");
return 1;
}
fd_lookup[pa->fd] = count_pollfds;
pollfds[count_pollfds].fd = pa->fd;
pollfds[count_pollfds].events = pa->events;
pollfds[count_pollfds++].revents = 0;
break;
case LWS_CALLBACK_DEL_POLL_FD:
if (!--count_pollfds)
break;
m = fd_lookup[pa->fd];
/* have the last guy take up the vacant slot */
pollfds[m] = pollfds[count_pollfds];
fd_lookup[pollfds[count_pollfds].fd] = m;
break;
case LWS_CALLBACK_CHANGE_MODE_POLL_FD:
pollfds[fd_lookup[pa->fd]].events = pa->events;
break;
#endif
case LWS_CALLBACK_GET_THREAD_ID:
/*
* if you will call "lws_callback_on_writable"
* from a different thread, return the caller thread ID
* here so lws can use this information to work out if it
* should signal the poll() loop to exit and restart early
*/
/* return pthread_getthreadid_np(); */
break;
#if defined(LWS_USE_POLARSSL)
#else
#if defined(LWS_USE_MBEDTLS)
#else
#if defined(LWS_OPENSSL_SUPPORT)
case LWS_CALLBACK_OPENSSL_PERFORM_CLIENT_CERT_VERIFICATION:
/* Verify the client certificate */
if (!len || (SSL_get_verify_result((SSL*)in) != X509_V_OK)) {
int err = X509_STORE_CTX_get_error((X509_STORE_CTX*)user);
int depth = X509_STORE_CTX_get_error_depth((X509_STORE_CTX*)user);
const char* msg = X509_verify_cert_error_string(err);
lwsl_err("LWS_CALLBACK_OPENSSL_PERFORM_CLIENT_CERT_VERIFICATION: SSL error: %s (%d), depth: %d\n", msg, err, depth);
return 1;
}
break;
#if defined(LWS_HAVE_SSL_CTX_set1_param)
case LWS_CALLBACK_OPENSSL_LOAD_EXTRA_SERVER_VERIFY_CERTS:
if (crl_path[0]) {
/* Enable CRL checking */
X509_VERIFY_PARAM *param = X509_VERIFY_PARAM_new();
X509_VERIFY_PARAM_set_flags(param, X509_V_FLAG_CRL_CHECK);
SSL_CTX_set1_param((SSL_CTX*)user, param);
X509_STORE *store = SSL_CTX_get_cert_store((SSL_CTX*)user);
X509_LOOKUP *lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
n = X509_load_cert_crl_file(lookup, crl_path, X509_FILETYPE_PEM);
X509_VERIFY_PARAM_free(param);
if (n != 1) {
char errbuf[256];
n = ERR_get_error();
lwsl_err("LWS_CALLBACK_OPENSSL_LOAD_EXTRA_SERVER_VERIFY_CERTS: SSL error: %s (%d)\n", ERR_error_string(n, errbuf), n);
return 1;
}
}
break;
#endif
#endif
#endif
#endif
default:
break;
}
return 0;
/* if we're on HTTP1.1 or 2.0, will keep the idle connection alive */
try_to_reuse:
if (lws_http_transaction_completed(wsi))
return -1;
return 0;
}
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;
}
static int
callback_client_loopback_test(struct lws *wsi, enum lws_callback_reasons reason,
void *user, void *in, size_t len)
{
struct lws_client_connect_info i;
struct per_session_data__client_loopback_test *pss =
(struct per_session_data__client_loopback_test *)user;
const char *p = (const char *)in;
char buf[100];
int n;
switch (reason) {
/* HTTP part */
case LWS_CALLBACK_HTTP:
if (len < 10)
return -1;
p++;
while (*p && *p != '/')
p++;
if (!*p) {
lws_return_http_status(wsi, 400, "Arg needs to be in format ws://xxx or wss://xxx");
return -1;
}
p++;
memset(&i, 0, sizeof(i));
i.context = lws_get_context(wsi);
// stacked /// get resolved to /
if (strncmp(p, "ws:/", 4) == 0) {
i.ssl_connection = 0;
i.port = 80;
p += 4;
} else
if (strncmp(p, "wss:/", 5) == 0) {
i.port = 443;
i.ssl_connection = 1;
p += 5;
} else {
sprintf(buf, "Arg %s is not in format ws://xxx or wss://xxx\n", p);
lws_return_http_status(wsi, 400, buf);
return -1;
}
i.address = p;
i.path = "";
i.host = p;
i.origin = p;
i.ietf_version_or_minus_one = -1;
i.protocol = "client-loopback-test";
pss->wsi = lws_client_connect_via_info(&i);
if (!pss->wsi)
lws_return_http_status(wsi, 401, "client-loopback-test: connect failed\n");
else {
lwsl_notice("client connection to %s:%d with ssl: %d started\n",
i.address, i.port, i.ssl_connection);
lws_return_http_status(wsi, 200, "OK");
}
/* either way, close the triggering http link */
return -1;
case LWS_CALLBACK_CLOSED_HTTP:
lwsl_notice("Http part closed\n");
break;
/* server part */
case LWS_CALLBACK_ESTABLISHED:
lwsl_notice("server part: LWS_CALLBACK_ESTABLISHED\n");
strcpy(buf + LWS_PRE, "Made it");
n = lws_write(wsi, (unsigned char *)buf + LWS_PRE,
7, LWS_WRITE_TEXT);
if (n < 7)
return -1;
break;
/* client part */
case LWS_CALLBACK_CLIENT_ESTABLISHED:
lwsl_notice("Client connection established\n");
break;
case LWS_CALLBACK_CLIENT_RECEIVE:
strncpy(buf, in, sizeof(buf) - 1);
lwsl_notice("Client connection received %d from server '%s'\n", len, buf);
/* OK we are done with the client connection */
return -1;
default:
break;
}
return 0;
}
int main(int argc, char **argv)
{
int n = 0, ret = 0, port = 7681, use_ssl = 0, ietf_version = -1;
unsigned int rl_dumb = 0, rl_mirror = 0, do_ws = 1, pp_secs = 0;
struct lws_context_creation_info info;
struct lws_client_connect_info i;
struct lws_context *context;
const char *prot, *p;
char path[300];
char cert_path[1024] = "";
char key_path[1024] = "";
char ca_path[1024] = "";
memset(&info, 0, sizeof info);
lwsl_notice("libwebsockets test client - license LGPL2.1+SLE\n");
lwsl_notice("(C) Copyright 2010-2016 Andy Green <*****@*****.**>\n");
if (argc < 2)
goto usage;
while (n >= 0) {
n = getopt_long(argc, argv, "Snuv:hsp:d:lC:K:A:P:", options, NULL);
if (n < 0)
continue;
switch (n) {
case 'd':
lws_set_log_level(atoi(optarg), NULL);
break;
case 's': /* lax SSL, allow selfsigned, skip checking hostname */
use_ssl = LCCSCF_USE_SSL |
LCCSCF_ALLOW_SELFSIGNED |
LCCSCF_SKIP_SERVER_CERT_HOSTNAME_CHECK;
break;
case 'S': /* Strict SSL, no selfsigned, check server hostname */
use_ssl = LCCSCF_USE_SSL;
break;
case 'p':
port = atoi(optarg);
break;
case 'P':
pp_secs = atoi(optarg);
lwsl_notice("Setting pingpong interval to %d\n", pp_secs);
break;
case 'l':
longlived = 1;
break;
case 'v':
ietf_version = atoi(optarg);
break;
case 'u':
deny_deflate = 1;
break;
case 'n':
flag_no_mirror_traffic = 1;
lwsl_notice("Disabled sending mirror data (for pingpong testing)\n");
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_USE_POLARSSL)
#else
#if defined(LWS_USE_MBEDTLS)
#else
#if defined(LWS_OPENSSL_SUPPORT) && 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
case 'h':
goto usage;
}
}
if (optind >= argc)
goto usage;
signal(SIGINT, sighandler);
memset(&i, 0, sizeof(i));
i.port = port;
if (lws_parse_uri(argv[optind], &prot, &i.address, &i.port, &p))
goto usage;
/* add back the leading / on path */
path[0] = '/';
strncpy(path + 1, p, sizeof(path) - 2);
path[sizeof(path) - 1] = '\0';
i.path = path;
if (!strcmp(prot, "http") || !strcmp(prot, "ws"))
use_ssl = 0;
if (!strcmp(prot, "https") || !strcmp(prot, "wss"))
if (!use_ssl)
use_ssl = LCCSCF_USE_SSL;
/*
* create the websockets context. This tracks open connections and
* knows how to route any traffic and which protocol version to use,
* and if each connection is client or server side.
*
* For this client-only demo, we tell it to not listen on any port.
*/
info.port = CONTEXT_PORT_NO_LISTEN;
info.protocols = protocols;
info.gid = -1;
info.uid = -1;
info.ws_ping_pong_interval = pp_secs;
if (use_ssl) {
info.options |= LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
/*
* If the server wants us to present a valid SSL client certificate
* then we can set it up here.
*/
if (cert_path[0])
info.ssl_cert_filepath = cert_path;
if (key_path[0])
info.ssl_private_key_filepath = key_path;
/*
* A CA cert and CRL can be used to validate the cert send by the server
*/
if (ca_path[0])
info.ssl_ca_filepath = ca_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)
else if (crl_path[0])
lwsl_notice("WARNING, providing a CRL requires a CA cert!\n");
#endif
#endif
#endif
}
if (use_ssl & LCCSCF_USE_SSL)
lwsl_notice(" Using SSL\n");
else
lwsl_notice(" SSL disabled\n");
if (use_ssl & LCCSCF_ALLOW_SELFSIGNED)
lwsl_notice(" Selfsigned certs allowed\n");
else
lwsl_notice(" Cert must validate correctly (use -s to allow selfsigned)\n");
if (use_ssl & LCCSCF_SKIP_SERVER_CERT_HOSTNAME_CHECK)
lwsl_notice(" Skipping peer cert hostname check\n");
else
lwsl_notice(" Requiring peer cert hostname matches\n");
context = lws_create_context(&info);
if (context == NULL) {
fprintf(stderr, "Creating libwebsocket context failed\n");
return 1;
}
i.context = context;
i.ssl_connection = use_ssl;
i.host = i.address;
i.origin = i.address;
i.ietf_version_or_minus_one = ietf_version;
i.client_exts = exts;
if (!strcmp(prot, "http") || !strcmp(prot, "https")) {
lwsl_notice("using %s mode (non-ws)\n", prot);
i.method = "GET";
do_ws = 0;
} else
lwsl_notice("using %s mode (ws)\n", prot);
/*
* sit there servicing the websocket context to handle incoming
* packets, and drawing random circles on the mirror protocol websocket
*
* nothing happens until the client websocket connection is
* asynchronously established... calling lws_client_connect() only
* instantiates the connection logically, lws_service() progresses it
* asynchronously.
*/
while (!force_exit) {
if (do_ws) {
if (!wsi_dumb && ratelimit_connects(&rl_dumb, 2u)) {
lwsl_notice("dumb: connecting\n");
i.protocol = protocols[PROTOCOL_DUMB_INCREMENT].name;
i.pwsi = &wsi_dumb;
lws_client_connect_via_info(&i);
}
if (!wsi_mirror && ratelimit_connects(&rl_mirror, 2u)) {
lwsl_notice("mirror: connecting\n");
i.protocol = protocols[PROTOCOL_LWS_MIRROR].name;
i.pwsi = &wsi_mirror;
wsi_mirror = lws_client_connect_via_info(&i);
}
} else
if (!wsi_dumb && ratelimit_connects(&rl_dumb, 2u)) {
lwsl_notice("http: connecting\n");
i.pwsi = &wsi_dumb;
lws_client_connect_via_info(&i);
}
lws_service(context, 500);
}
lwsl_err("Exiting\n");
lws_context_destroy(context);
return ret;
usage:
fprintf(stderr, "Usage: libwebsockets-test-client "
"<server address> [--port=<p>] "
"[--ssl] [-k] [-v <ver>] "
"[-d <log bitfield>] [-l]\n");
return 1;
}
int callback_http(struct lws *wsi, enum lws_callback_reasons reason, void *user,
void *in, size_t len)
{
struct per_session_data__http *pss =
(struct per_session_data__http *)user;
unsigned char buffer[4096 + LWS_PRE];
unsigned long amount, file_len, sent;
char leaf_path[1024];
const char *mimetype;
char *other_headers;
unsigned char *end;
struct timeval tv;
unsigned char *p;
#ifndef LWS_NO_CLIENT
struct per_session_data__http *pss1;
struct lws *wsi1;
#endif
char buf[256];
char b64[64];
int n, m;
#ifdef EXTERNAL_POLL
struct lws_pollargs *pa = (struct lws_pollargs *)in;
#endif
// lwsl_err("%s: reason %d\n", __func__, reason);
switch (reason) {
case LWS_CALLBACK_HTTP:
{
char name[100], rip[50];
lws_get_peer_addresses(wsi, lws_get_socket_fd(wsi), name,
sizeof(name), rip, sizeof(rip));
sprintf(buf, "%s (%s)", name, rip);
lwsl_notice("HTTP connect from %s\n", buf);
}
if (len < 1) {
lws_return_http_status(wsi,
HTTP_STATUS_BAD_REQUEST, NULL);
goto try_to_reuse;
}
#ifndef LWS_NO_CLIENT
if (!strncmp(in, "/proxytest", 10)) {
struct lws_client_connect_info i;
char *rootpath = "/";
const char *p = (const char *)in;
if (lws_get_child(wsi))
break;
pss->client_finished = 0;
memset(&i,0, sizeof(i));
i.context = lws_get_context(wsi);
i.address = "git.libwebsockets.org";
i.port = 80;
i.ssl_connection = 0;
if (p[10])
i.path = (char *)in + 10;
else
i.path = rootpath;
i.host = "git.libwebsockets.org";
i.origin = NULL;
i.method = "GET";
i.parent_wsi = wsi;
i.uri_replace_from = "git.libwebsockets.org/";
i.uri_replace_to = "/proxytest/";
if (!lws_client_connect_via_info(&i)) {
lwsl_err("proxy connect fail\n");
break;
}
break;
}
#endif
#if 1
/* this example server has no concept of directories */
if (strchr((const char *)in + 1, '/')) {
lws_return_http_status(wsi, HTTP_STATUS_FORBIDDEN, NULL);
goto try_to_reuse;
}
#endif
/* if a legal POST URL, let it continue and accept data */
if (lws_hdr_total_length(wsi, WSI_TOKEN_POST_URI))
return 0;
/* check for the "send a big file by hand" example case */
lwsl_notice("%s\n", in);
if (!strcmp((const char *)in, "/leaf.jpg")) {
if (strlen(resource_path) > sizeof(leaf_path) - 10)
return -1;
sprintf(leaf_path, "%s/leaf.jpg", resource_path);
/* well, let's demonstrate how to send the hard way */
p = buffer + LWS_PRE;
end = p + sizeof(buffer) - LWS_PRE;
pss->fd = lws_plat_file_open(wsi, leaf_path, &file_len,
LWS_O_RDONLY);
if (pss->fd == LWS_INVALID_FILE) {
lwsl_err("faild to open file %s\n", leaf_path);
return -1;
}
/*
* we will send a big jpeg file, but it could be
* anything. Set the Content-Type: appropriately
* so the browser knows what to do with it.
*
* Notice we use the APIs to build the header, which
* will do the right thing for HTTP 1/1.1 and HTTP2
* depending on what connection it happens to be working
* on
*/
if (lws_add_http_header_status(wsi, 200, &p, end))
return 1;
if (lws_add_http_header_by_token(wsi, WSI_TOKEN_HTTP_SERVER,
(unsigned char *)"libwebsockets",
13, &p, end))
return 1;
if (lws_add_http_header_by_token(wsi,
WSI_TOKEN_HTTP_CONTENT_TYPE,
(unsigned char *)"image/jpeg",
10, &p, end))
return 1;
if (lws_add_http_header_content_length(wsi,
file_len, &p,
end))
return 1;
if (lws_finalize_http_header(wsi, &p, end))
return 1;
/*
* send the http headers...
* this won't block since it's the first payload sent
* on the connection since it was established
* (too small for partial)
*
* Notice they are sent using LWS_WRITE_HTTP_HEADERS
* which also means you can't send body too in one step,
* this is mandated by changes in HTTP2
*/
*p = '\0';
lwsl_info("%s\n", buffer + LWS_PRE);
n = lws_write(wsi, buffer + LWS_PRE,
p - (buffer + LWS_PRE),
LWS_WRITE_HTTP_HEADERS);
if (n < 0) {
lws_plat_file_close(wsi, pss->fd);
return -1;
}
/*
* book us a LWS_CALLBACK_HTTP_WRITEABLE callback
*/
lws_callback_on_writable(wsi);
break;
}
/* if not, send a file the easy way */
if (!strncmp(in, "/cgit-data/", 11)) {
in = (char *)in + 11;
strcpy(buf, "/usr/share/cgit");
} else
strcpy(buf, resource_path);
if (strcmp(in, "/")) {
if (*((const char *)in) != '/')
strcat(buf, "/");
strncat(buf, in, sizeof(buf) - strlen(buf) - 1);
} else /* default file to serve */
strcat(buf, "/test.html");
buf[sizeof(buf) - 1] = '\0';
/* refuse to serve files we don't understand */
mimetype = get_mimetype(buf);
if (!mimetype) {
lwsl_err("Unknown mimetype for %s\n", buf);
lws_return_http_status(wsi,
HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE, NULL);
return -1;
}
/* demonstrates how to set a cookie on / */
other_headers = leaf_path;
p = (unsigned char *)leaf_path;
if (!strcmp((const char *)in, "/") &&
!lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_COOKIE)) {
/* this isn't very unguessable but it'll do for us */
gettimeofday(&tv, NULL);
n = sprintf(b64, "test=LWS_%u_%u_COOKIE;Max-Age=360000",
(unsigned int)tv.tv_sec,
(unsigned int)tv.tv_usec);
if (lws_add_http_header_by_name(wsi,
(unsigned char *)"set-cookie:",
(unsigned char *)b64, n, &p,
(unsigned char *)leaf_path + sizeof(leaf_path)))
return 1;
}
if (lws_is_ssl(wsi) && lws_add_http_header_by_name(wsi,
(unsigned char *)
"Strict-Transport-Security:",
(unsigned char *)
"max-age=15768000 ; "
"includeSubDomains", 36, &p,
(unsigned char *)leaf_path +
sizeof(leaf_path)))
return 1;
n = (char *)p - leaf_path;
n = lws_serve_http_file(wsi, buf, mimetype, other_headers, n);
if (n < 0 || ((n > 0) && lws_http_transaction_completed(wsi)))
return -1; /* error or can't reuse connection: close the socket */
/*
* notice that the sending of the file completes asynchronously,
* we'll get a LWS_CALLBACK_HTTP_FILE_COMPLETION callback when
* it's done
*/
break;
case LWS_CALLBACK_HTTP_BODY:
strncpy(buf, in, 20);
buf[20] = '\0';
if (len < 20)
buf[len] = '\0';
lwsl_notice("LWS_CALLBACK_HTTP_BODY: %s... len %d\n",
(const char *)buf, (int)len);
break;
case LWS_CALLBACK_HTTP_BODY_COMPLETION:
lwsl_notice("LWS_CALLBACK_HTTP_BODY_COMPLETION\n");
/* the whole of the sent body arrived, close or reuse the connection */
lws_return_http_status(wsi, HTTP_STATUS_OK, NULL);
goto try_to_reuse;
case LWS_CALLBACK_HTTP_FILE_COMPLETION:
goto try_to_reuse;
case LWS_CALLBACK_HTTP_WRITEABLE:
lwsl_info("LWS_CALLBACK_HTTP_WRITEABLE\n");
if (pss->client_finished)
return -1;
if (pss->fd == LWS_INVALID_FILE)
goto try_to_reuse;
#ifdef LWS_WITH_CGI
if (pss->reason_bf & 1) {
if (lws_cgi_write_split_stdout_headers(wsi) < 0)
goto bail;
pss->reason_bf &= ~1;
break;
}
#endif
#ifndef LWS_NO_CLIENT
if (pss->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.
*/
pss->reason_bf &= ~2;
wsi1 = lws_get_child(wsi);
if (!wsi1)
break;
if (lws_http_client_read(wsi1, &px, &lenx) < 0)
goto bail;
if (pss->client_finished)
return -1;
break;
}
#endif
/*
* we can send more of whatever it is we were sending
*/
sent = 0;
do {
/* we'd like the send this much */
n = sizeof(buffer) - LWS_PRE;
/* but if the peer told us he wants less, we can adapt */
m = lws_get_peer_write_allowance(wsi);
/* -1 means not using a protocol that has this info */
if (m == 0)
/* right now, peer can't handle anything */
goto later;
if (m != -1 && m < n)
/* he couldn't handle that much */
n = m;
n = lws_plat_file_read(wsi, pss->fd,
&amount, buffer + LWS_PRE, n);
/* problem reading, close conn */
if (n < 0) {
lwsl_err("problem reading file\n");
goto bail;
}
n = (int)amount;
/* sent it all, close conn */
if (n == 0)
goto penultimate;
/*
* To support HTTP2, must take care about preamble space
*
* identification of when we send the last payload frame
* is handled by the library itself if you sent a
* content-length header
*/
m = lws_write(wsi, buffer + LWS_PRE, n, LWS_WRITE_HTTP);
if (m < 0) {
lwsl_err("write failed\n");
/* write failed, close conn */
goto bail;
}
if (m) /* while still active, extend timeout */
lws_set_timeout(wsi, PENDING_TIMEOUT_HTTP_CONTENT, 5);
sent += m;
} while (!lws_send_pipe_choked(wsi) && (sent < 1024 * 1024));
later:
lws_callback_on_writable(wsi);
break;
penultimate:
lws_plat_file_close(wsi, pss->fd);
pss->fd = LWS_INVALID_FILE;
goto try_to_reuse;
bail:
lws_plat_file_close(wsi, pss->fd);
return -1;
/*
* callback for confirming to continue with client IP appear in
* protocol 0 callback since no websocket protocol has been agreed
* yet. You can just ignore this if you won't filter on client IP
* since the default unhandled callback return is 0 meaning let the
* connection continue.
*/
case LWS_CALLBACK_FILTER_NETWORK_CONNECTION:
/* if we returned non-zero from here, we kill the connection */
break;
#ifndef LWS_NO_CLIENT
case LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP: {
char ctype[64], ctlen = 0;
lwsl_err("LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP\n");
p = buffer + LWS_PRE;
end = p + sizeof(buffer) - LWS_PRE;
if (lws_add_http_header_status(lws_get_parent(wsi), 200, &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", buffer + LWS_PRE);
n = lws_write(lws_get_parent(wsi), buffer + LWS_PRE,
p - (buffer + LWS_PRE),
LWS_WRITE_HTTP_HEADERS);
if (n < 0)
return -1;
break; }
case LWS_CALLBACK_CLOSED_CLIENT_HTTP:
//lwsl_err("LWS_CALLBACK_CLOSED_CLIENT_HTTP\n");
return -1;
break;
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;
// lwsl_err("LWS_CALLBACK_RECEIVE_CLIENT_HTTP: wsi %p: sock: %d, parent_wsi: %p, parent_sock:%d, len %d\n",
// wsi, lws_get_socket_fd(wsi),
// lws_get_parent(wsi),
// lws_get_socket_fd(lws_get_parent(wsi)), len);
pss1 = lws_wsi_user(lws_get_parent(wsi));
pss1->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", len);
assert(lws_get_parent(wsi));
m = lws_write(lws_get_parent(wsi), (unsigned char *)in,
len, LWS_WRITE_HTTP);
if (m < 0)
return -1;
break;
case LWS_CALLBACK_COMPLETED_CLIENT_HTTP:
//lwsl_err("LWS_CALLBACK_COMPLETED_CLIENT_HTTP\n");
assert(lws_get_parent(wsi));
if (!lws_get_parent(wsi))
break;
pss1 = lws_wsi_user(lws_get_parent(wsi));
pss1->client_finished = 1;
break;
#endif
#ifdef LWS_WITH_CGI
/* CGI IO events (POLLIN/OUT) appear here our demo user code policy is
*
* - POST data goes on subprocess stdin
* - subprocess stdout goes on http via writeable callback
* - subprocess stderr goes to the logs
*/
case LWS_CALLBACK_CGI:
pss->args = *((struct lws_cgi_args *)in);
//lwsl_notice("LWS_CALLBACK_CGI: ch %d\n", pss->args.ch);
switch (pss->args.ch) { /* which of stdin/out/err ? */
case LWS_STDIN:
/* TBD stdin rx flow control */
break;
case LWS_STDOUT:
pss->reason_bf |= 1;
/* when writing to MASTER would not block */
lws_callback_on_writable(wsi);
break;
case LWS_STDERR:
n = read(lws_get_socket_fd(pss->args.stdwsi[LWS_STDERR]),
buf, 127);
//lwsl_notice("stderr reads %d\n", n);
if (n > 0) {
if (buf[n - 1] != '\n')
buf[n++] = '\n';
buf[n] = '\0';
lwsl_notice("CGI-stderr: %s\n", buf);
}
break;
}
break;
case LWS_CALLBACK_CGI_TERMINATED:
//lwsl_notice("LWS_CALLBACK_CGI_TERMINATED\n");
/* because we sent on openended http, close the connection */
return -1;
case LWS_CALLBACK_CGI_STDIN_DATA: /* POST body for stdin */
//lwsl_notice("LWS_CALLBACK_CGI_STDIN_DATA\n");
pss->args = *((struct lws_cgi_args *)in);
n = write(lws_get_socket_fd(pss->args.stdwsi[LWS_STDIN]),
pss->args.data, pss->args.len);
//lwsl_notice("LWS_CALLBACK_CGI_STDIN_DATA: write says %d", n);
if (n < pss->args.len)
lwsl_notice("LWS_CALLBACK_CGI_STDIN_DATA: sent %d only %d went",
n, pss->args.len);
return n;
#endif
/*
* callbacks for managing the external poll() array appear in
* protocol 0 callback
*/
case LWS_CALLBACK_LOCK_POLL:
/*
* lock mutex to protect pollfd state
* called before any other POLL related callback
* if protecting wsi lifecycle change, len == 1
*/
test_server_lock(len);
break;
case LWS_CALLBACK_UNLOCK_POLL:
/*
* unlock mutex to protect pollfd state when
* called after any other POLL related callback
* if protecting wsi lifecycle change, len == 1
*/
test_server_unlock(len);
break;
#ifdef EXTERNAL_POLL
case LWS_CALLBACK_ADD_POLL_FD:
if (count_pollfds >= max_poll_elements) {
lwsl_err("LWS_CALLBACK_ADD_POLL_FD: too many sockets to track\n");
return 1;
}
fd_lookup[pa->fd] = count_pollfds;
pollfds[count_pollfds].fd = pa->fd;
pollfds[count_pollfds].events = pa->events;
pollfds[count_pollfds++].revents = 0;
break;
case LWS_CALLBACK_DEL_POLL_FD:
if (!--count_pollfds)
break;
m = fd_lookup[pa->fd];
/* have the last guy take up the vacant slot */
pollfds[m] = pollfds[count_pollfds];
fd_lookup[pollfds[count_pollfds].fd] = m;
break;
case LWS_CALLBACK_CHANGE_MODE_POLL_FD:
pollfds[fd_lookup[pa->fd]].events = pa->events;
break;
#endif
case LWS_CALLBACK_GET_THREAD_ID:
/*
* if you will call "lws_callback_on_writable"
* from a different thread, return the caller thread ID
* here so lws can use this information to work out if it
* should signal the poll() loop to exit and restart early
*/
/* return pthread_getthreadid_np(); */
break;
default:
break;
}
return 0;
/* if we're on HTTP1.1 or 2.0, will keep the idle connection alive */
try_to_reuse:
if (lws_http_transaction_completed(wsi))
return -1;
return 0;
}
void FLwsWebSocket::Connect()
{
bIsConnecting = true;
if (LwsContext == nullptr)
{
DelayConnectionError(TEXT("Invalid context"));
return;
}
if (LwsConnection != nullptr)
{
DelayConnectionError(TEXT("Already connected"));
return;
}
struct lws_client_connect_info ConnectInfo = {};
ConnectInfo.context = LwsContext;
FTCHARToUTF8 UrlUtf8(*Url);
const char *UrlProtocol, *TmpUrlPath;
char UrlPath[300];
if (lws_parse_uri((char*) UrlUtf8.Get(), &UrlProtocol, &ConnectInfo.address, &ConnectInfo.port, &TmpUrlPath))
{
DelayConnectionError(TEXT("Bad URL"));
return;
}
UrlPath[0] = '/';
FCStringAnsi::Strncpy(UrlPath+1, TmpUrlPath, sizeof(UrlPath)-2);
UrlPath[sizeof(UrlPath)-1]='\0';
ConnectInfo.path = UrlPath;
ConnectInfo.host = ConnectInfo.address;
ConnectInfo.origin = ConnectInfo.address;
ConnectInfo.ietf_version_or_minus_one = -1;
ConnectInfo.client_exts = LwsExtensions;
// Use SSL and require a valid cerver cert
if (FCStringAnsi::Stricmp(UrlProtocol, "wss") == 0 )
{
ConnectInfo.ssl_connection = 1;
}
// Use SSL, and allow self-signed certs
else if (FCStringAnsi::Stricmp(UrlProtocol, "wss+insecure") == 0 )
{
ConnectInfo.ssl_connection = 2;
}
// No encryption
else if (FCStringAnsi::Stricmp(UrlProtocol, "ws") == 0 )
{
ConnectInfo.ssl_connection = 0;
}
// Else return an error
else
{
DelayConnectionError(FString::Printf(TEXT("Bad protocol '%s'. Use either 'ws', 'wss', or 'wss+insecure'"), UTF8_TO_TCHAR(UrlProtocol)));
return;
}
FString Combined = FString::Join(Protocols, TEXT(","));
FTCHARToUTF8 CombinedUTF8(*Combined);
ConnectInfo.protocol = CombinedUTF8.Get();
ConnectInfo.userdata = this;
if (lws_client_connect_via_info(&ConnectInfo) == nullptr)
{
DelayConnectionError(TEXT("Could not initialize connection"));
}
}
int main(int argc, char *argv[])
{
//setup signal handler to detect if the mirror
//wants to terminate this program.
struct sigaction action;
memset(&action, 0, sizeof(struct sigaction));
action.sa_handler = terminate;
sigaction(SIGTERM, &action, NULL);
//start of program here
lws_set_log_level(0, NULL);
char protoName[1024];
strcpy(protoName, argv[1]);
struct lws_context *context = NULL;
struct lws_context_creation_info info;
struct lws *wsi = NULL;
struct lws_protocols protocol;
struct lws_client_connect_info i;
memset(&info, 0, sizeof info);
info.port = CONTEXT_PORT_NO_LISTEN;
info.protocols = &protocol;
info.max_http_header_pool = 128;
info.gid = -1;
info.uid = -1;
protocol.name = protoName;
protocol.callback = ws_service_callback;
protocol.per_session_data_size = sizeof(struct session_data);
protocol.rx_buffer_size = 125;
printf("Creating context\n");
context = lws_create_context(&info);
printf(KRED"[Main] context created.\n"RESET);
if (context == NULL) {
printf(KRED"[Main] context is NULL.\n"RESET);
return -1;
}
printf("Connecting...\n");
const char *prot;
if (lws_parse_uri(server, &prot, &i.address, &i.port, &i.path)) {
printf("Client.c: Error parsing uri\n");
exit(1);
}
i.port = 5000;
i.context = context;
i.ssl_connection = 0;
i.host = i.address;
i.origin = i.address;
i.ietf_version_or_minus_one = -1;
i.protocol = protoName;
//struct lws *wsi = NULL;
const struct timespec sleepTime = {
0, NANOSECOND/FPS
};
char command[256];
int left = 0, dir = 1;
if (!connection_flag || !wsi) {
wsi = lws_client_connect_via_info(&i);
}
while(!destroy_flag) {
lws_service(context, 0);
if (!connection_flag || !wsi) continue;
left += (dir * SPEED);
if (left > SCREEN_WIDTH) dir = -dir;
else if (left < 0) dir = -dir;
sprintf(command, "{\"command\":\"setcss\",\"data\":\"left=%dpx\"}", left);
websocket_write_back(wsi, command, -1);
nanosleep(&sleepTime, NULL);
}
lws_context_destroy(context);
return 0;
}
int main(int argc, char **argv)
{
int n = 0, ret = 0, port = 7681, use_ssl = 0, ietf_version = -1;
unsigned int rl_dumb = 0, rl_mirror = 0, do_ws = 1;
struct lws_context_creation_info info;
struct lws_client_connect_info i;
struct lws_context *context;
const char *prot, *p;
char path[300];
memset(&info, 0, sizeof info);
lwsl_notice("libwebsockets test client - license LGPL2.1+SLE\n");
lwsl_notice("(C) Copyright 2010-2016 Andy Green <*****@*****.**>\n");
if (argc < 2)
goto usage;
while (n >= 0) {
n = getopt_long(argc, argv, "nuv:hsp:d:l", options, NULL);
if (n < 0)
continue;
switch (n) {
case 'd':
lws_set_log_level(atoi(optarg), NULL);
break;
case 's':
use_ssl = 2; /* 2 = allow selfsigned */
break;
case 'p':
port = atoi(optarg);
break;
case 'l':
longlived = 1;
break;
case 'v':
ietf_version = atoi(optarg);
break;
case 'u':
deny_deflate = 1;
break;
case 'n':
deny_mux = 1;
break;
case 'h':
goto usage;
}
}
if (optind >= argc)
goto usage;
signal(SIGINT, sighandler);
memset(&i, 0, sizeof(i));
i.port = port;
if (lws_parse_uri(argv[optind], &prot, &i.address, &i.port, &p))
goto usage;
/* add back the leading / on path */
path[0] = '/';
strncpy(path + 1, p, sizeof(path) - 2);
path[sizeof(path) - 1] = '\0';
i.path = path;
if (!strcmp(prot, "http") || !strcmp(prot, "ws"))
use_ssl = 0;
if (!strcmp(prot, "https") || !strcmp(prot, "wss"))
use_ssl = 1;
/*
* create the websockets context. This tracks open connections and
* knows how to route any traffic and which protocol version to use,
* and if each connection is client or server side.
*
* For this client-only demo, we tell it to not listen on any port.
*/
info.port = CONTEXT_PORT_NO_LISTEN;
info.protocols = protocols;
info.gid = -1;
info.uid = -1;
if (use_ssl)
info.options |= LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
context = lws_create_context(&info);
if (context == NULL) {
fprintf(stderr, "Creating libwebsocket context failed\n");
return 1;
}
i.context = context;
i.ssl_connection = use_ssl;
i.host = i.address;
i.origin = i.address;
i.ietf_version_or_minus_one = ietf_version;
i.client_exts = exts;
if (!strcmp(prot, "http") || !strcmp(prot, "https")) {
lwsl_notice("using %s mode (non-ws)\n", prot);
i.method = "GET";
do_ws = 0;
} else
lwsl_notice("using %s mode (ws)\n", prot);
/*
* sit there servicing the websocket context to handle incoming
* packets, and drawing random circles on the mirror protocol websocket
*
* nothing happens until the client websocket connection is
* asynchronously established... calling lws_client_connect() only
* instantiates the connection logically, lws_service() progresses it
* asynchronously.
*/
while (!force_exit) {
if (do_ws) {
if (!wsi_dumb && ratelimit_connects(&rl_dumb, 2u)) {
lwsl_notice("dumb: connecting\n");
i.protocol = protocols[PROTOCOL_DUMB_INCREMENT].name;
wsi_dumb = lws_client_connect_via_info(&i);
}
if (!wsi_mirror && ratelimit_connects(&rl_mirror, 2u)) {
lwsl_notice("mirror: connecting\n");
i.protocol = protocols[PROTOCOL_LWS_MIRROR].name;
wsi_mirror = lws_client_connect_via_info(&i);
}
} else
if (!wsi_dumb && ratelimit_connects(&rl_dumb, 2u)) {
lwsl_notice("http: connecting\n");
wsi_dumb = lws_client_connect_via_info(&i);
}
lws_service(context, 500);
}
lwsl_err("Exiting\n");
lws_context_destroy(context);
return ret;
usage:
fprintf(stderr, "Usage: libwebsockets-test-client "
"<server address> [--port=<p>] "
"[--ssl] [-k] [-v <ver>] "
"[-d <log bitfield>] [-l]\n");
return 1;
}
int websocket_init(struct lws_context **context, struct lws **wsi,
char *host, char *path, int port, void *handle ){
struct lws_context *c;
struct lws *w;
const char *interface = NULL;
const char *cert_path = NULL;
const char *key_path = NULL;
int use_ssl = 0;
int opts = 0;
int ietf_version = -1;
struct lws_context_creation_info info;
if(handle == NULL){
ERROR("Socket handler not found");
return WEBSOCKET_FAIL;
}
if(host == NULL){
ERROR("Host not found");
return WEBSOCKET_FAIL;
}
memset(&info, 0, sizeof info);
info.port = CONTEXT_PORT_NO_LISTEN;
info.iface = interface;
info.protocols = protocols;
info.extensions = NULL;
info.ssl_cert_filepath = NULL;
info.ssl_private_key_filepath = NULL;
info.gid = -1;
info.uid = -1;
info.options = opts;
info.user = handle;
info.ka_time = 25000;
info.ka_probes = 3;
info.ka_interval = 500;
// set log level to debug so that we dont get notice messages
lws_set_log_level(LLL_ERR, NULL);
// create libwebsockets context
*context = lws_create_context(&info);
if (context == NULL) {
ERROR("libwebsocket init failed");
return WEBSOCKET_FAIL;
}
// connect to handle
struct lws_client_connect_info connect_info;
memset(&connect_info, 0, sizeof(connect_info));
connect_info.context = *context;
connect_info.address = host;
connect_info.port = port;
connect_info.ssl_connection = use_ssl;
connect_info.path = path;
connect_info.host = host;
connect_info.origin = host;
connect_info.protocol = NULL;
connect_info.ietf_version_or_minus_one = ietf_version;
*wsi = lws_client_connect_via_info(&connect_info);
if(wsi == NULL){
ERROR("libwebsocket connect failed");
return WEBSOCKET_FAIL;
}
return WEBSOCKET_SUCCESS;
}
Error LWSClient::connect_to_host(String p_host, String p_path, uint16_t p_port, bool p_ssl, PoolVector<String> p_protocols) {
ERR_FAIL_COND_V(context != NULL, FAILED);
IP_Address addr;
if (!p_host.is_valid_ip_address()) {
addr = IP::get_singleton()->resolve_hostname(p_host);
} else {
addr = p_host;
}
ERR_FAIL_COND_V(!addr.is_valid(), ERR_INVALID_PARAMETER);
// Prepare protocols
_lws_make_protocols(this, &LWSClient::_lws_gd_callback, p_protocols, &_lws_ref);
// Init lws client
struct lws_context_creation_info info;
struct lws_client_connect_info i;
memset(&i, 0, sizeof i);
memset(&info, 0, sizeof info);
info.port = CONTEXT_PORT_NO_LISTEN;
info.protocols = _lws_ref->lws_structs;
info.gid = -1;
info.uid = -1;
//info.ws_ping_pong_interval = 5;
info.user = _lws_ref;
#if defined(LWS_OPENSSL_SUPPORT)
info.options |= LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
#endif
context = lws_create_context(&info);
if (context == NULL) {
_lws_free_ref(_lws_ref);
_lws_ref = NULL;
ERR_EXPLAIN("Unable to create lws context");
ERR_FAIL_V(FAILED);
}
i.context = context;
if (p_protocols.size() > 0)
i.protocol = _lws_ref->lws_names;
else
i.protocol = NULL;
if (p_ssl) {
i.ssl_connection = LCCSCF_USE_SSL;
if (!verify_ssl)
i.ssl_connection |= LCCSCF_ALLOW_SELFSIGNED;
} else {
i.ssl_connection = 0;
}
// These CharStrings needs to survive till we call lws_client_connect_via_info
CharString addr_ch = ((String)addr).ascii();
CharString host_ch = p_host.utf8();
CharString path_ch = p_path.utf8();
i.address = addr_ch.get_data();
i.host = host_ch.get_data();
i.path = path_ch.get_data();
i.port = p_port;
lws_client_connect_via_info(&i);
return OK;
};
Error LWSClient::connect_to_host(String p_host, String p_path, uint16_t p_port, bool p_ssl, PoolVector<String> p_protocols) {
ERR_FAIL_COND_V(context != NULL, FAILED);
IP_Address addr;
if (!p_host.is_valid_ip_address()) {
addr = IP::get_singleton()->resolve_hostname(p_host);
} else {
addr = p_host;
}
ERR_FAIL_COND_V(!addr.is_valid(), ERR_INVALID_PARAMETER);
// prepare protocols
if (p_protocols.size() == 0) // default to binary protocol
p_protocols.append("binary");
_lws_make_protocols(this, &LWSClient::_lws_gd_callback, p_protocols, &_lws_ref);
// init lws client
struct lws_context_creation_info info;
struct lws_client_connect_info i;
memset(&i, 0, sizeof i);
memset(&info, 0, sizeof info);
info.port = CONTEXT_PORT_NO_LISTEN;
info.protocols = _lws_ref->lws_structs;
info.gid = -1;
info.uid = -1;
//info.ws_ping_pong_interval = 5;
info.user = _lws_ref;
#if defined(LWS_OPENSSL_SUPPORT)
info.options |= LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
#endif
context = lws_create_context(&info);
if (context == NULL) {
_lws_free_ref(_lws_ref);
_lws_ref = NULL;
ERR_EXPLAIN("Unable to create lws context");
ERR_FAIL_V(FAILED);
}
char abuf[1024];
char hbuf[1024];
char pbuf[2048];
String addr_str = (String)addr;
strncpy(abuf, addr_str.ascii().get_data(), 1024);
strncpy(hbuf, p_host.utf8().get_data(), 1024);
strncpy(pbuf, p_path.utf8().get_data(), 2048);
i.context = context;
i.protocol = _lws_ref->lws_names;
i.address = abuf;
i.host = hbuf;
i.path = pbuf;
i.port = p_port;
if (p_ssl) {
i.ssl_connection = LCCSCF_USE_SSL;
if (!verify_ssl)
i.ssl_connection |= LCCSCF_ALLOW_SELFSIGNED;
} else {
i.ssl_connection = 0;
}
lws_client_connect_via_info(&i);
return OK;
};