void WebSocketOpcode_handleReceive(struct libwebsocket *websocket,
WebSocketOpcode *self, CSOUND *csound,
size_t inputDataSize, void *inputData)
{
const struct libwebsocket_protocols *protocol =
libwebsockets_get_protocol(websocket);
OpcodeArgument *argument = &self->outputArguments[protocol->protocol_index];
if (protocol->protocol_index >= self->outputArgumentCount
||
argument->iRateVarSent == true) {
return;
}
if (argument->bytesCount != inputDataSize
&&
argument->argumentType != STRING_VAR) {
csound->Message(csound,
Str("websocket: received message from %s is not correct "
"size for variable %s, message dumped"),
protocol->name, argument->name);
return;
}
if (argument->argumentType == STRING_VAR
&&
argument->bytesCount > stringVarMaximumBytesCount) {
csound->Message(csound,
Str("websocket: received string message from %s is "
"too large, message dumped"),
protocol->name, argument->name);
return;
}
int writtenItems = csoundWriteCircularBuffer(csound, argument->circularBuffer,
inputData, argument->itemsCount);
if (writtenItems == 0) {
csound->Message(csound,
Str("websocket: received message from %s dumped, "
"buffer overrrun"), argument->name);
}
else {
if (argument->argumentType == IRATE_VAR
||
argument->argumentType == IRATE_ARRAY) {
argument->iRateVarSent = true;
}
}
}
int ws_callback(
struct libwebsocket_context *context
,struct libwebsocket *ws
,enum libwebsocket_callback_reasons reason
,void *user
,void *message
,size_t len
)
{
roxlu::WebSockets* websockets = roxlu::WebSockets::getInstance();
// get protocol handle.
const struct libwebsocket_protocols* ws_protocol = libwebsockets_get_protocol(ws);
int dx = (ws_protocol) ? ws_protocol->protocol_index : 0;
roxlu::WebSocketProtocol* protocol = websockets->getProtocol(dx);
// connection
roxlu::WebSocketConnection** const conn_ptr = (roxlu::WebSocketConnection**)user;
roxlu::WebSocketConnection* conn;
// connection established & closed
if(reason == LWS_CALLBACK_ESTABLISHED) {
*conn_ptr = new roxlu::WebSocketConnection(websockets, protocol);
}
else if(reason == LWS_CALLBACK_CLOSED) {
if(*conn_ptr != NULL) {
delete *conn_ptr;
}
}
switch(reason) {
case LWS_CALLBACK_FILTER_NETWORK_CONNECTION: {
if(protocol != NULL) {
return websockets->onAllow(protocol, (int)(long)user) ? 0 : 1;
}
else {
return 0;
}
};
case LWS_CALLBACK_ESTABLISHED:
case LWS_CALLBACK_CLOSED:
case LWS_CALLBACK_SERVER_WRITEABLE:
case LWS_CALLBACK_RECEIVE:
case LWS_CALLBACK_BROADCAST: {
conn = *(roxlu::WebSocketConnection**)user;
if(conn && conn->ws != ws) {
conn->ws = ws;
}
return websockets->onCallback(conn, reason, (char*)message, len);
};
default:return 0;
};
return 1;
}
void WebSocketOpcode_handleServerWritable(struct libwebsocket *websocket,
WebSocketOpcode *self,
CSOUND *csound, void *messageBuffer)
{
const struct libwebsocket_protocols *protocol =
libwebsockets_get_protocol(websocket);
// If it's an output argument just return
if (protocol->protocol_index < self->outputArgumentCount) {
usleep(100);
return;
}
int inputIndex = protocol->protocol_index - self->outputArgumentCount;
OpcodeArgument *argument = &self->inputArguments[inputIndex];
int readItems = 0;
if (argument->bytesWritten == 0) {
readItems =
csoundReadCircularBuffer(csound, argument->circularBuffer,
argument->readBuffer, argument->itemsCount);
}
if (readItems != 0 || argument->bytesWritten != 0) {
WebSocketOpcode_writeMessage(self, argument, messageBuffer, websocket);
if (argument->argumentType == IRATE_VAR ||
argument->argumentType == IRATE_ARRAY) {
argument->iRateVarSent = true;
}
}
usleep(100);
if (argument->iRateVarSent == false) {
libwebsocket_callback_on_writable(self->webSocket->context, websocket);
}
}
static int Websocket_callback(struct libwebsocket_context *context,
struct libwebsocket *websocket,
enum libwebsocket_callback_reasons reason,
void *user, void *inputData, size_t inputDataSize)
{
WebSocketOpcode *self = libwebsocket_context_user(context);
CSOUND *csound = self->csound;
void *messageBuffer =
(void *)&self->webSocket->messageBuffer[LWS_SEND_BUFFER_PRE_PADDING];
switch (reason) {
case LWS_CALLBACK_ESTABLISHED: {
const struct libwebsocket_protocols *protocol =
libwebsockets_get_protocol(websocket);
csound->Message(csound,
Str("websocket: connection established for %s\n"),
protocol->name);
break;
}
case LWS_CALLBACK_SERVER_WRITEABLE: {
WebSocketOpcode_handleServerWritable(websocket, self, csound, messageBuffer);
break;
}
case LWS_CALLBACK_RECEIVE: {
WebSocketOpcode_handleReceive(websocket, self, csound,
inputDataSize, inputData);
break;
}
default: {
break;
}
}
return OK;
}
static int
callback_lws_mirror(struct libwebsocket_context *context,
struct libwebsocket *wsi,
enum libwebsocket_callback_reasons reason,
void *user, void *in, size_t len)
{
int n;
struct per_session_data__lws_mirror *pss = (struct per_session_data__lws_mirror *)user;
switch (reason) {
case LWS_CALLBACK_ESTABLISHED:
lwsl_info("callback_lws_mirror: LWS_CALLBACK_ESTABLISHED\n");
pss->ringbuffer_tail = ringbuffer_head;
pss->wsi = wsi;
break;
case LWS_CALLBACK_PROTOCOL_DESTROY:
lwsl_notice("mirror protocol cleaning up\n");
for (n = 0; n < sizeof ringbuffer / sizeof ringbuffer[0]; n++)
if (ringbuffer[n].payload)
free(ringbuffer[n].payload);
break;
case LWS_CALLBACK_SERVER_WRITEABLE:
if (close_testing)
break;
while (pss->ringbuffer_tail != ringbuffer_head) {
n = libwebsocket_write(wsi, (unsigned char *)
ringbuffer[pss->ringbuffer_tail].payload +
LWS_SEND_BUFFER_PRE_PADDING,
ringbuffer[pss->ringbuffer_tail].len,
LWS_WRITE_TEXT);
if (n < 0) {
lwsl_err("ERROR %d writing to mirror socket\n", n);
return -1;
}
if (n < ringbuffer[pss->ringbuffer_tail].len)
lwsl_err("mirror partial write %d vs %d\n",
n, ringbuffer[pss->ringbuffer_tail].len);
if (pss->ringbuffer_tail == (MAX_MESSAGE_QUEUE - 1))
pss->ringbuffer_tail = 0;
else
pss->ringbuffer_tail++;
if (((ringbuffer_head - pss->ringbuffer_tail) &
(MAX_MESSAGE_QUEUE - 1)) == (MAX_MESSAGE_QUEUE - 15))
libwebsocket_rx_flow_allow_all_protocol(
libwebsockets_get_protocol(wsi));
// lwsl_debug("tx fifo %d\n", (ringbuffer_head - pss->ringbuffer_tail) & (MAX_MESSAGE_QUEUE - 1));
if (lws_send_pipe_choked(wsi)) {
libwebsocket_callback_on_writable(context, wsi);
break;
}
/*
* for tests with chrome on same machine as client and
* server, this is needed to stop chrome choking
*/
#ifdef _WIN32
Sleep(1);
#else
usleep(1);
#endif
}
break;
case LWS_CALLBACK_RECEIVE:
if (((ringbuffer_head - pss->ringbuffer_tail) &
(MAX_MESSAGE_QUEUE - 1)) == (MAX_MESSAGE_QUEUE - 1)) {
lwsl_err("dropping!\n");
goto choke;
}
if (ringbuffer[ringbuffer_head].payload)
free(ringbuffer[ringbuffer_head].payload);
ringbuffer[ringbuffer_head].payload =
malloc(LWS_SEND_BUFFER_PRE_PADDING + len +
LWS_SEND_BUFFER_POST_PADDING);
ringbuffer[ringbuffer_head].len = len;
memcpy((char *)ringbuffer[ringbuffer_head].payload +
LWS_SEND_BUFFER_PRE_PADDING, in, len);
if (ringbuffer_head == (MAX_MESSAGE_QUEUE - 1))
ringbuffer_head = 0;
else
ringbuffer_head++;
if (((ringbuffer_head - pss->ringbuffer_tail) &
(MAX_MESSAGE_QUEUE - 1)) != (MAX_MESSAGE_QUEUE - 2))
goto done;
choke:
lwsl_debug("LWS_CALLBACK_RECEIVE: throttling %p\n", wsi);
libwebsocket_rx_flow_control(wsi, 0);
// lwsl_debug("rx fifo %d\n", (ringbuffer_head - pss->ringbuffer_tail) & (MAX_MESSAGE_QUEUE - 1));
done:
libwebsocket_callback_on_writable_all_protocol(
libwebsockets_get_protocol(wsi));
break;
/*
* this just demonstrates how to use the protocol filter. If you won't
* study and reject connections based on header content, you don't need
* to handle this callback
*/
case LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION:
dump_handshake_info(wsi);
/* you could return non-zero here and kill the connection */
break;
default:
break;
}
return 0;
}
static int
callback_lws_mirror(struct libwebsocket_context *context,
struct libwebsocket *wsi,
enum libwebsocket_callback_reasons reason,
void *user, void *in, size_t len)
{
int n;
struct per_session_data__lws_mirror *pss = user;
switch (reason) {
case LWS_CALLBACK_ESTABLISHED:
fprintf(stderr, "callback_lws_mirror: "
"LWS_CALLBACK_ESTABLISHED\n");
pss->ringbuffer_tail = ringbuffer_head;
pss->wsi = wsi;
break;
case LWS_CALLBACK_SERVER_WRITEABLE:
if (close_testing)
break;
if (pss->ringbuffer_tail != ringbuffer_head) {
n = libwebsocket_write(wsi, (unsigned char *)
ringbuffer[pss->ringbuffer_tail].payload +
LWS_SEND_BUFFER_PRE_PADDING,
ringbuffer[pss->ringbuffer_tail].len,
LWS_WRITE_TEXT);
if (n < 0) {
fprintf(stderr, "ERROR writing to socket");
exit(1);
}
if (pss->ringbuffer_tail == (MAX_MESSAGE_QUEUE - 1))
pss->ringbuffer_tail = 0;
else
pss->ringbuffer_tail++;
if (((ringbuffer_head - pss->ringbuffer_tail) %
MAX_MESSAGE_QUEUE) < (MAX_MESSAGE_QUEUE - 15))
libwebsocket_rx_flow_control(wsi, 1);
libwebsocket_callback_on_writable(context, wsi);
}
break;
case LWS_CALLBACK_BROADCAST:
n = libwebsocket_write(wsi, in, len, LWS_WRITE_TEXT);
if (n < 0)
fprintf(stderr, "mirror write failed\n");
break;
case LWS_CALLBACK_RECEIVE:
if (ringbuffer[ringbuffer_head].payload)
free(ringbuffer[ringbuffer_head].payload);
ringbuffer[ringbuffer_head].payload =
malloc(LWS_SEND_BUFFER_PRE_PADDING + len +
LWS_SEND_BUFFER_POST_PADDING);
ringbuffer[ringbuffer_head].len = len;
memcpy((char *)ringbuffer[ringbuffer_head].payload +
LWS_SEND_BUFFER_PRE_PADDING, in, len);
if (ringbuffer_head == (MAX_MESSAGE_QUEUE - 1))
ringbuffer_head = 0;
else
ringbuffer_head++;
if (((ringbuffer_head - pss->ringbuffer_tail) %
MAX_MESSAGE_QUEUE) > (MAX_MESSAGE_QUEUE - 10))
libwebsocket_rx_flow_control(wsi, 0);
libwebsocket_callback_on_writable_all_protocol(
libwebsockets_get_protocol(wsi));
break;
/*
* this just demonstrates how to use the protocol filter. If you won't
* study and reject connections based on header content, you don't need
* to handle this callback
*/
case LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION:
dump_handshake_info((struct lws_tokens *)(long)user);
/* you could return non-zero here and kill the connection */
break;
default:
break;
}
return 0;
}
static int callback_mqtt(struct libwebsocket_context *context,
#endif
struct libwebsocket *wsi,
enum libwebsocket_callback_reasons reason,
void *user,
void *in,
size_t len)
{
struct mosquitto_db *db;
struct mosquitto *mosq = NULL;
struct mosquitto__packet *packet;
int count, i, j;
const struct libwebsocket_protocols *p;
struct libws_mqtt_data *u = (struct libws_mqtt_data *)user;
size_t pos;
uint8_t *buf;
int rc;
uint8_t byte;
db = &int_db;
switch (reason) {
case LWS_CALLBACK_ESTABLISHED:
mosq = context__init(db, WEBSOCKET_CLIENT);
if(mosq){
p = libwebsockets_get_protocol(wsi);
for (i=0; i<db->config->listener_count; i++){
if (db->config->listeners[i].protocol == mp_websockets) {
for (j=0; db->config->listeners[i].ws_protocol[j].name; j++){
if (p == &db->config->listeners[i].ws_protocol[j]){
mosq->listener = &db->config->listeners[i];
mosq->listener->client_count++;
}
}
}
}
if(!mosq->listener){
mosquitto__free(mosq);
return -1;
}
#if !defined(LWS_LIBRARY_VERSION_NUMBER)
mosq->ws_context = context;
#endif
mosq->wsi = wsi;
#ifdef WITH_TLS
if(in){
mosq->ssl = (SSL *)in;
if(!mosq->listener->ssl_ctx){
mosq->listener->ssl_ctx = SSL_get_SSL_CTX(mosq->ssl);
}
}
#endif
u->mosq = mosq;
}else{
return -1;
}
easy_address(libwebsocket_get_socket_fd(wsi), mosq);
if(!mosq->address){
/* getpeername and inet_ntop failed and not a bridge */
mosquitto__free(mosq);
u->mosq = NULL;
return -1;
}
if(mosq->listener->max_connections > 0 && mosq->listener->client_count > mosq->listener->max_connections){
if(db->config->connection_messages == true){
log__printf(NULL, MOSQ_LOG_NOTICE, "Client connection from %s denied: max_connections exceeded.", mosq->address);
}
mosquitto__free(mosq);
u->mosq = NULL;
return -1;
}
mosq->sock = libwebsocket_get_socket_fd(wsi);
HASH_ADD(hh_sock, db->contexts_by_sock, sock, sizeof(mosq->sock), mosq);
break;
case LWS_CALLBACK_CLOSED:
if(!u){
return -1;
}
mosq = u->mosq;
if(mosq){
if(mosq->sock != INVALID_SOCKET){
HASH_DELETE(hh_sock, db->contexts_by_sock, mosq);
mosq->sock = INVALID_SOCKET;
mosq->pollfd_index = -1;
}
mosq->wsi = NULL;
#ifdef WITH_TLS
mosq->ssl = NULL;
#endif
do_disconnect(db, mosq);
}
break;
case LWS_CALLBACK_SERVER_WRITEABLE:
if(!u){
return -1;
}
mosq = u->mosq;
if(!mosq){
return -1;
}
db__message_write(db, mosq);
if(mosq->out_packet && !mosq->current_out_packet){
mosq->current_out_packet = mosq->out_packet;
mosq->out_packet = mosq->out_packet->next;
if(!mosq->out_packet){
mosq->out_packet_last = NULL;
}
}
if(mosq->current_out_packet && !lws_send_pipe_choked(mosq->wsi)){
packet = mosq->current_out_packet;
if(packet->pos == 0 && packet->to_process == packet->packet_length){
/* First time this packet has been dealt with.
* libwebsockets requires that the payload has
* LWS_SEND_BUFFER_PRE_PADDING space available before the
* actual data and LWS_SEND_BUFFER_POST_PADDING afterwards.
* We've already made the payload big enough to allow this,
* but need to move it into position here. */
memmove(&packet->payload[LWS_SEND_BUFFER_PRE_PADDING], packet->payload, packet->packet_length);
packet->pos += LWS_SEND_BUFFER_PRE_PADDING;
}
count = libwebsocket_write(wsi, &packet->payload[packet->pos], packet->to_process, LWS_WRITE_BINARY);
if(count < 0){
if (mosq->state == mosq_cs_disconnect_ws || mosq->state == mosq_cs_disconnecting){
return -1;
}
return 0;
}
#ifdef WITH_SYS_TREE
g_bytes_sent += count;
#endif
packet->to_process -= count;
packet->pos += count;
if(packet->to_process > 0){
if (mosq->state == mosq_cs_disconnect_ws || mosq->state == mosq_cs_disconnecting){
return -1;
}
break;
}
#ifdef WITH_SYS_TREE
g_msgs_sent++;
if(((packet->command)&0xF6) == PUBLISH){
g_pub_msgs_sent++;
}
#endif
/* Free data and reset values */
mosq->current_out_packet = mosq->out_packet;
if(mosq->out_packet){
mosq->out_packet = mosq->out_packet->next;
if(!mosq->out_packet){
mosq->out_packet_last = NULL;
}
}
packet__cleanup(packet);
mosquitto__free(packet);
mosq->next_msg_out = mosquitto_time() + mosq->keepalive;
}
if (mosq->state == mosq_cs_disconnect_ws || mosq->state == mosq_cs_disconnecting){
return -1;
}
if(mosq->current_out_packet){
libwebsocket_callback_on_writable(mosq->ws_context, mosq->wsi);
}
break;
case LWS_CALLBACK_RECEIVE:
if(!u || !u->mosq){
return -1;
}
mosq = u->mosq;
pos = 0;
buf = (uint8_t *)in;
G_BYTES_RECEIVED_INC(len);
while(pos < len){
if(!mosq->in_packet.command){
mosq->in_packet.command = buf[pos];
pos++;
/* Clients must send CONNECT as their first command. */
if(mosq->state == mosq_cs_new && (mosq->in_packet.command&0xF0) != CONNECT){
return -1;
}
}
if(mosq->in_packet.remaining_count <= 0){
do{
if(pos == len){
return 0;
}
byte = buf[pos];
pos++;
mosq->in_packet.remaining_count--;
/* Max 4 bytes length for remaining length as defined by protocol.
* Anything more likely means a broken/malicious client.
*/
if(mosq->in_packet.remaining_count < -4){
return -1;
}
mosq->in_packet.remaining_length += (byte & 127) * mosq->in_packet.remaining_mult;
mosq->in_packet.remaining_mult *= 128;
}while((byte & 128) != 0);
mosq->in_packet.remaining_count *= -1;
if(mosq->in_packet.remaining_length > 0){
mosq->in_packet.payload = mosquitto__malloc(mosq->in_packet.remaining_length*sizeof(uint8_t));
if(!mosq->in_packet.payload){
return -1;
}
mosq->in_packet.to_process = mosq->in_packet.remaining_length;
}
}
if(mosq->in_packet.to_process>0){
if(len - pos >= mosq->in_packet.to_process){
memcpy(&mosq->in_packet.payload[mosq->in_packet.pos], &buf[pos], mosq->in_packet.to_process);
mosq->in_packet.pos += mosq->in_packet.to_process;
pos += mosq->in_packet.to_process;
mosq->in_packet.to_process = 0;
}else{
memcpy(&mosq->in_packet.payload[mosq->in_packet.pos], &buf[pos], len-pos);
mosq->in_packet.pos += len-pos;
mosq->in_packet.to_process -= len-pos;
return 0;
}
}
/* All data for this packet is read. */
mosq->in_packet.pos = 0;
#ifdef WITH_SYS_TREE
G_MSGS_RECEIVED_INC(1);
if(((mosq->in_packet.command)&0xF5) == PUBLISH){
G_PUB_MSGS_RECEIVED_INC(1);
}
#endif
rc = handle__packet(db, mosq);
/* Free data and reset values */
packet__cleanup(&mosq->in_packet);
mosq->last_msg_in = mosquitto_time();
if(rc && (mosq->out_packet || mosq->current_out_packet)) {
if(mosq->state != mosq_cs_disconnecting){
mosq->state = mosq_cs_disconnect_ws;
}
libwebsocket_callback_on_writable(mosq->ws_context, mosq->wsi);
} else if (rc) {
do_disconnect(db, mosq);
return -1;
}
}
break;
default:
break;
}
return 0;
}
static int
callback_lws_mirror(struct libwebsocket_context *context,
struct libwebsocket *wsi,
enum libwebsocket_callback_reasons reason,
void *user, void *in, size_t len)
{
int n;
struct per_session_data__lws_mirror *pss = (struct per_session_data__lws_mirror *)user;
switch (reason) {
case LWS_CALLBACK_ESTABLISHED:
lwsl_info("callback_lws_mirror: "
"LWS_CALLBACK_ESTABLISHED\n");
pss->ringbuffer_tail = ringbuffer_head;
pss->wsi = wsi;
break;
case LWS_CALLBACK_PROTOCOL_DESTROY:
lwsl_notice("mirror protocol cleaning up\n");
for (n = 0; n < sizeof ringbuffer / sizeof ringbuffer[0]; n++)
if (ringbuffer[n].payload)
free(ringbuffer[n].payload);
break;
case LWS_CALLBACK_SERVER_WRITEABLE:
if (close_testing)
break;
while (pss->ringbuffer_tail != ringbuffer_head) {
n = libwebsocket_write(wsi, (unsigned char *)
ringbuffer[pss->ringbuffer_tail].payload +
LWS_SEND_BUFFER_PRE_PADDING,
ringbuffer[pss->ringbuffer_tail].len,
LWS_WRITE_TEXT);
if (n < 0) {
lwsl_err("ERROR %d writing to mirror socket\n", n);
return -1;
}
if (pss->ringbuffer_tail == (MAX_MESSAGE_QUEUE - 1))
pss->ringbuffer_tail = 0;
else
pss->ringbuffer_tail++;
if (((ringbuffer_head - pss->ringbuffer_tail) &
(MAX_MESSAGE_QUEUE - 1)) == (MAX_MESSAGE_QUEUE - 15)) {
for (n = 0; n < num_wsi_choked; n++)
libwebsocket_rx_flow_control(wsi_choked[n], 1);
num_wsi_choked = 0;
}
// lwsl_debug("tx fifo %d\n", (ringbuffer_head - pss->ringbuffer_tail) & (MAX_MESSAGE_QUEUE - 1));
if (lws_send_pipe_choked(wsi)) {
libwebsocket_callback_on_writable(context, wsi);
return 0;
}
}
break;
case LWS_CALLBACK_RECEIVE:
cout << string((char *) in, len) << endl;
if (((ringbuffer_head - pss->ringbuffer_tail) &
(MAX_MESSAGE_QUEUE - 1)) == (MAX_MESSAGE_QUEUE - 1)) {
lwsl_err("dropping!\n");
goto choke;
}
if (ringbuffer[ringbuffer_head].payload)
free(ringbuffer[ringbuffer_head].payload);
ringbuffer[ringbuffer_head].payload =
malloc(LWS_SEND_BUFFER_PRE_PADDING + len +
LWS_SEND_BUFFER_POST_PADDING);
ringbuffer[ringbuffer_head].len = len;
memcpy((char *)ringbuffer[ringbuffer_head].payload +
LWS_SEND_BUFFER_PRE_PADDING, in, len);
if (ringbuffer_head == (MAX_MESSAGE_QUEUE - 1))
ringbuffer_head = 0;
else
ringbuffer_head++;
if (((ringbuffer_head - pss->ringbuffer_tail) &
(MAX_MESSAGE_QUEUE - 1)) != (MAX_MESSAGE_QUEUE - 2))
goto done;
choke:
if (num_wsi_choked < sizeof wsi_choked / sizeof wsi_choked[0]) {
libwebsocket_rx_flow_control(wsi, 0);
wsi_choked[num_wsi_choked++] = wsi;
}
// lwsl_debug("rx fifo %d\n", (ringbuffer_head - pss->ringbuffer_tail) & (MAX_MESSAGE_QUEUE - 1));
done:
libwebsocket_callback_on_writable_all_protocol(
libwebsockets_get_protocol(wsi));
break;
default:
break;
}
return 0;
}
static int callback_rtl_ws(struct libwebsocket_context *context,
struct libwebsocket *wsi,
enum libwebsocket_callback_reasons reason, void *user,
void *in, size_t len)
{
int f;
int bw;
int n, nn = 0;
int do_write = 0;
struct per_session_data__rtl_ws *pss = (struct per_session_data__rtl_ws *)user;
char* buffer = NULL;
char tmpbuffer[30];
memset(tmpbuffer, 0, 30);
switch (reason) {
case LWS_CALLBACK_ESTABLISHED:
lwsl_info("protocol starting\n");
pss->id = latest_user_id++;
pss->block_id = 0;
printf("id: %d\n", pss->id);
if (current_user_id == 0)
current_user_id = pss->id;
printf("cid: %d\n", current_user_id);
if (current_user_id != pss->id) {
return -1;
}
break;
case LWS_CALLBACK_PROTOCOL_DESTROY:
lwsl_notice("protocol cleaning up\n");
send_data = 0;
if (current_user_id == pss->id)
current_user_id = 0;
break;
case LWS_CALLBACK_SERVER_WRITEABLE:
pthread_mutex_lock(&data_mutex);
do_write = transfer.block_id > pss->block_id && should_write();
pss->block_id = transfer.block_id;
pthread_mutex_unlock(&data_mutex);
if (do_write) {
memset(send_buffer, 0, LWS_SEND_BUFFER_PRE_PADDING + SEND_BUFFER_SIZE + LWS_SEND_BUFFER_POST_PADDING);
n = sprintf(tmpbuffer, "f %u;b %u;", rtl_freq(), rtl_sample_rate());
memcpy(&send_buffer[LWS_SEND_BUFFER_PRE_PADDING], tmpbuffer, n);
nn = write_spectrum_message(&send_buffer[LWS_SEND_BUFFER_PRE_PADDING+n], SEND_BUFFER_SIZE/2);
// TODO: LWS_WRITE_BINARY
n = libwebsocket_write(wsi, (unsigned char *)
&send_buffer[LWS_SEND_BUFFER_PRE_PADDING], n+nn, LWS_WRITE_TEXT);
}
usleep(1);
if (send_data)
libwebsocket_callback_on_writable(context, wsi);
break;
case LWS_CALLBACK_RECEIVE:
buffer = malloc(len+1);
memset(buffer, 0, len+1);
memcpy(buffer, in, len);
printf("%s\n", buffer);
if ((len >= strlen(FREQ_CMD)) && strncmp(FREQ_CMD, buffer, strlen(FREQ_CMD)) == 0) {
f = atoi(&buffer[strlen(FREQ_CMD)])*1000;
printf("Trying to tune to %d Hz...\n", f);
rtl_tune(f);
} else if ((len >= strlen(SAMPLE_RATE_CMD)) && strncmp(SAMPLE_RATE_CMD, buffer, strlen(SAMPLE_RATE_CMD)) == 0) {
bw = atoi(&buffer[strlen(SAMPLE_RATE_CMD)])*1000;
printf("Trying to set sample rate to %d Hz...\n", bw);
rtl_set_sample_rate(bw);
} else if ((len >= strlen(START_CMD)) && strncmp(START_CMD, buffer, strlen(START_CMD)) == 0) {
send_data = 1;
libwebsocket_callback_on_writable_all_protocol(
libwebsockets_get_protocol(wsi));
} else if ((len >= strlen(STOP_CMD)) && strncmp(STOP_CMD, buffer, strlen(STOP_CMD)) == 0) {
send_data = 0;
}
free(buffer);
break;
default:
break;
}
return 0;
}
static int callback_nyx_websockets(struct libwebsocket_context *context,struct libwebsocket *wsi,enum libwebsocket_callback_reasons reason, void *user,void *in,size_t len)
{
struct per_session_data_nyx *pss =(struct per_session_data_nyx*)user;
int n;
node *wsd_state = (node*)libwebsocket_context_user(context);
//node *daemon = (node*)libwebsocket_context_user(context);
//node *wsd_state = node_GetNode(get_value(daemon));
node *found_prot = NULL;
node *state = NULL;
node *block = NULL;
//node *daemon = NULL;
node *daemon_obj = NULL;
node *session_uid = NULL;
long lsession_uid = 0;
node *sessions_num = NULL;
node *sessions = NULL;
long lsessions_num = 0;
if(wsd_state)
{
state = node_GetItem(wsd_state,0);
block = node_GetItem(wsd_state,1);
//daemon = node_GetItem(wsd_state,2);
node *protocols = node_GetItem(wsd_state,3);
session_uid = node_GetItem(wsd_state,4);
node *session_uid_value = node_GetItemByKey(session_uid,"value");
lsession_uid = node_GetSint32(session_uid_value);
sessions_num = node_GetItem(wsd_state,5);
sessions = node_GetItem(wsd_state,6);
node *sessions_num_value = node_GetItemByKey(sessions_num,"value");
lsessions_num = node_GetSint32(sessions_num_value);
daemon_obj = node_GetItem(wsd_state,9);
if(wsi)
{
node *protocols_items = node_GetItemByKey(protocols,"items");
const struct libwebsocket_protocols *prot = libwebsockets_get_protocol(wsi);
if(prot && prot->name)
{
node_ItemIterationReset(protocols_items);
while(node_ItemIterationUnfinished(protocols_items))
{
node *proto = node_ItemIterate(protocols_items);
if(!strcmp(get_obj_name(proto),prot->name))
{
found_prot = proto;
}
}
}
}
}
switch(reason)
{
//case LWS_CALLBACK_SERVER_NEW_CLIENT_INSTANTIATED:
case LWS_CALLBACK_CLIENT_ESTABLISHED:
printf("new session created:%d, num:%d\n",lsession_uid,lsessions_num);
pss->session = NULL;
break;
case LWS_CALLBACK_HTTP:
if(len < 1)
{
libwebsockets_return_http_status(context,wsi,HTTP_STATUS_BAD_REQUEST,NULL);
return(-1);
}
if(lws_hdr_total_length(wsi,WSI_TOKEN_POST_URI))
return(0);
if(found_prot)
{
//printf("found prot in http callback : uid:%d,num:%d (sess:%x)\n",lsession_uid+1,lsessions_num,pss->session);
if(!pss->session)
{
lsession_uid++;
node *session_uid_value = node_GetItemByKey(session_uid,"value");
node_SetSint32(session_uid_value,lsession_uid);
lsessions_num++;
node *sessions_num_value = node_GetItemByKey(sessions_num,"value");
node_SetSint32(sessions_num_value,lsessions_num);
pss->session = create_session(state,sessions,lsession_uid,get_obj_name(found_prot));
node *session_privates = node_GetItemByKey(pss->session,"privates");
set_obj_int(session_privates,"is_http",1);
//printf("created new session :%d actual sessions num:%d\n",lsession_uid,lsessions_num);
}
node *parameters = create_obj("parameters");
node *base_class = get_base_class(state);
node *prot_value = create_class_instance(base_class);
set_obj_string(prot_value,"name","protocol");
set_obj_string(prot_value,"value",get_obj_name(found_prot));
node_AddItem(parameters,prot_value);
inc_obj_refcount(prot_value);
char *url = str_CreateEmpty();
url = str_AddChars(url,in,len);
node *url_value = create_class_instance(base_class);
set_obj_string(url_value,"name","url");
set_obj_string(url_value,"value",url);
node_AddItem(parameters,url_value);
inc_obj_refcount(url_value);
free(url);
node_AddItem(parameters,pss->session);
inc_obj_refcount(pss->session);
//node_AddItem(parameters,daemon_obj);
node_AddItem(parameters,sessions);
inc_obj_refcount(sessions);
node *tmp_parent = node_GetParent(found_prot);
node *bmembers = node_GetItemByKey(block,"members");
node_SetParent(found_prot,bmembers);
node *ret_obj = execute_obj(state,found_prot,block,parameters,True,False);//,True);resolve
node_SetParent(found_prot,tmp_parent);
//dec_obj_refcount(msg_value);
dec_obj_refcount(prot_value);
//add_garbage(state,msg_value);//TODO check if "just survives"
add_garbage(state,prot_value);
dec_obj_refcount(url_value);
add_garbage(state,url_value);
dec_obj_refcount(pss->session);
dec_obj_refcount(sessions);
node *ret_obj_value = node_GetItemByKey(ret_obj,"value");
if( (node_GetType(ret_obj_value)==NODE_TYPE_STRING && strlen(node_GetString(ret_obj_value))) || (node_GetType(ret_obj_value)==NODE_TYPE_BINARY && node_GetBinaryLength(ret_obj_value)) )
{
//printf("returning http message: [%s] :%d\n",node_GetString(ret_obj_value),strlen(node_GetString(ret_obj_value)));
//node *ret_obj_copy = node_CopyTree(ret_obj,True,True);
node *ret_obj_copy = copy_class(ret_obj);
//reset_obj_refcount(ret_obj_copy);
set_obj_string(ret_obj_copy,"name","message");
add_member(pss->session,ret_obj_copy);
inc_obj_refcount(ret_obj_copy);
}
libwebsocket_callback_on_writable(context, wsi);
}
break;
case LWS_CALLBACK_HTTP_BODY_COMPLETION:
if(found_prot)
{
printf("found prot in http body complete : %d,num:%d\n",lsession_uid,lsessions_num);
if(daemon_obj)
{
printf("body: found daemon_obj\n");
}
}
else
printf("body closed: prot not found\n");
//lwsl_notice("LWS_CALLBACK_HTTP_BODY_COMPLETION\n");
libwebsockets_return_http_status(context,wsi,HTTP_STATUS_OK,NULL);
return(-1);
case LWS_CALLBACK_HTTP_FILE_COMPLETION:
if(found_prot)
{
//printf("found prot in http file complete : %d,num:%d\n",lsession_uid,lsessions_num);
lsessions_num--;
node *sessions_num_value = node_GetItemByKey(sessions_num,"value");
node_SetSint32(sessions_num_value,lsessions_num);
delete_session(state,sessions,pss->session);
pss->session = NULL;
if(daemon_obj)
{
printf("http: found daemon_obj\n");
}
}
else
printf("file closed: prot not found\n");
return(-1);
case LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION:
if(found_prot)
{
int n;
static const char *token_names[] =
{
/*[WSI_TOKEN_GET_URI] =*/ "GET URI",
/*[WSI_TOKEN_POST_URI] =*/ "POST URI",
/*[WSI_TOKEN_OPTIONS] =*/ "Options",
/*[WSI_TOKEN_HOST] =*/ "Host",
/*[WSI_TOKEN_CONNECTION] =*/ "Connection",
/*[WSI_TOKEN_KEY1] =*/ "key 1",
/*[WSI_TOKEN_KEY2] =*/ "key 2",
/*[WSI_TOKEN_PROTOCOL] =*/ "Protocol",
/*[WSI_TOKEN_UPGRADE] =*/ "Upgrade",
/*[WSI_TOKEN_ORIGIN] =*/ "Origin",
/*[WSI_TOKEN_DRAFT] =*/ "Draft",
/*[WSI_TOKEN_CHALLENGE] =*/ "Challenge",
/* new for 04 */
/*[WSI_TOKEN_KEY] =*/ "Key",
/*[WSI_TOKEN_VERSION] =*/ "Version",
/*[WSI_TOKEN_SWORIGIN] =*/ "Sworigin",
/* new for 05 */
/*[WSI_TOKEN_EXTENSIONS] =*/ "Extensions",
/* client receives these */
/*[WSI_TOKEN_ACCEPT] =*/ "Accept",
/*[WSI_TOKEN_NONCE] =*/ "Nonce",
/*[WSI_TOKEN_HTTP] =*/ "Http",
"Accept:",
"Accept_Request_Headers:",
"If-None-Match:",
"If-Modified-Since:",
"Accept-Encoding:",
"Accept-Language:",
"Pragma:",
"Cache-Control:",
"Authorization:",
"Cookie:",
"Content-Length:",
"Content-Type:",
"Date:",
"Range:",
"Referer:",
"Uri-Args:",
/*[WSI_TOKEN_MUXURL] =*/ "MuxURL",
};
//printf("found prot in http filter callback : uid:%d,num:%d (sess:%x)\n",lsession_uid+1,lsessions_num,pss->session);
if(!pss->session)
{
lsession_uid++;
node *session_uid_value = node_GetItemByKey(session_uid,"value");
node_SetSint32(session_uid_value,lsession_uid);
lsessions_num++;
node *sessions_num_value = node_GetItemByKey(sessions_num,"value");
node_SetSint32(sessions_num_value,lsessions_num);
pss->session = create_session(state,sessions,lsession_uid,get_obj_name(found_prot));
//node *session_privates = node_GetItemByKey(pss->session,"privates");
//set_obj_int(session_privates,"is_http",1);
}
//printf("filter sess:%x\n",pss->session);
for(n=0;n<(int)(sizeof(token_names)/sizeof(token_names[0]));n++)
{
if (!lws_hdr_total_length(wsi, n))
continue;
char *cookies = (char*)malloc(512);
memset(cookies,0,512);
lws_hdr_copy(wsi,cookies,511,n);
//printf("header:%s = [%s]\n",token_names[n],cookies);
//fflush(stdout);
if(pss->session && !strcmp("Cookie:",token_names[n]))
{
//printf("cookie found:%s = [%s]\n",token_names[n],cookies);
//fflush(stdout);
node *base_class = get_base_class(state);
node *cookie_value = create_class_instance(base_class);
set_obj_string(cookie_value,"name","cookie");
set_obj_string(cookie_value,"value",cookies);
add_member(pss->session,cookie_value);
inc_obj_refcount(cookie_value);
}
free(cookies);
}
}
break;
case LWS_CALLBACK_HTTP_WRITEABLE:
case LWS_CALLBACK_SERVER_WRITEABLE:
{
//node_PrintTree(pss->session);
node *message = get_member(pss->session,"message");
node *session_privates = node_GetItemByKey(pss->session,"privates");
node *http_only = node_GetItemByKey(session_privates,"is_http");
while(message)
{
//node *session_id = get_member(pss->session,"id");
//node *session_id_value = node_GetItemByKey(session_id,"value");
node *message_value = node_GetItemByKey(message,"value");
unsigned char *me = NULL;
unsigned long me_len = 0;
if(node_GetType(message_value)==NODE_TYPE_STRING)
{
me = (unsigned char*)node_GetString(message_value);
me_len = strlen((char*)me);
}
else if(node_GetType(message_value)==NODE_TYPE_BINARY)
{
me = (unsigned char*)node_GetBinary(message_value);
me_len = node_GetBinaryLength(message_value);
}
//printf("sending message now: [%s] to: %d\n",me,node_GetSint32(session_id_value));
//fflush(stdout);
unsigned char *buf = (unsigned char*)malloc(LWS_SEND_BUFFER_PRE_PADDING + me_len + LWS_SEND_BUFFER_POST_PADDING);
memcpy(buf+LWS_SEND_BUFFER_PRE_PADDING,me,me_len);
if(http_only)
//n = libwebsocket_write(wsi, me, me_len, LWS_WRITE_HTTP);
n = libwebsocket_write(wsi,buf+LWS_SEND_BUFFER_PRE_PADDING,me_len,LWS_WRITE_HTTP);
else
//n = libwebsocket_write(wsi, me, me_len, LWS_WRITE_TEXT);
n = libwebsocket_write(wsi,buf+LWS_SEND_BUFFER_PRE_PADDING,me_len,LWS_WRITE_TEXT);
free(buf);
if(n<0)
{
printf("ERROR %d writing to socket, hanging up\n", n);
return(1);
}
if(n<(long)me_len)
{
printf("Partial write\n");
return(-1);
}
//node_FreeTree(pss->message);
remove_member(pss->session,message);
dec_obj_refcount(message);
//printf("removing message from queue:%x (%d)\n",message,get_obj_refcount(message));
add_garbage(state,message);
message = get_member(pss->session,"message");
}
if(http_only)
{
//if(lws_http_transaction_completed(wsi))
//{
//printf("removing http session num:%d\n",lsessions_num);
lsessions_num--;
node *sessions_num_value = node_GetItemByKey(sessions_num,"value");
node_SetSint32(sessions_num_value,lsessions_num);
delete_session(state,sessions,pss->session);
pss->session = NULL;
//printf("removed http\n");
return -1;
//return(-1);
//}
//else
// libwebsocket_callback_on_writable(context, wsi);
}
}
break;
case LWS_CALLBACK_ESTABLISHED:
if(found_prot)
{
//printf("found prot in establish callback : uid:%d,num:%d (sess:%x)\n",lsession_uid+1,lsessions_num,pss->session);
if(!pss->session)
{
lsession_uid++;
node *session_uid_value = node_GetItemByKey(session_uid,"value");
node_SetSint32(session_uid_value,lsession_uid);
lsessions_num++;
node *sessions_num_value = node_GetItemByKey(sessions_num,"value");
node_SetSint32(sessions_num_value,lsessions_num);
pss->session = create_session(state,sessions,lsession_uid,get_obj_name(found_prot));
}
if(daemon_obj)
{
node *connect_handler = get_member(daemon_obj,"connect_handler");
if(connect_handler)
{
connect_handler = resolve_object(state,connect_handler);
node *parameters = create_obj("parameters");
node *base_class = get_base_class(state);
node *prot_value = create_class_instance(base_class);
set_obj_string(prot_value,"name","protocol");
set_obj_string(prot_value,"value",get_obj_name(found_prot));
node_AddItem(parameters,prot_value);
inc_obj_refcount(prot_value);
node_AddItem(parameters,pss->session);
inc_obj_refcount(pss->session);
node_AddItem(parameters,sessions);
inc_obj_refcount(sessions);
node *tmp_parent = node_GetParent(connect_handler);
node *bmembers = node_GetItemByKey(block,"members");
node_SetParent(connect_handler,bmembers);
node *ret_obj = execute_obj(state,connect_handler,block,parameters,True,False);//,True);resolve
node_SetParent(connect_handler,tmp_parent);
dec_obj_refcount(prot_value);
add_garbage(state,prot_value);
dec_obj_refcount(pss->session);
dec_obj_refcount(sessions);
node *ret_obj_value = node_GetItemByKey(ret_obj,"value");
if(node_GetType(ret_obj_value)==NODE_TYPE_STRING && strlen(node_GetString(ret_obj_value)))
{
}
}
}
}
break;
case LWS_CALLBACK_CLOSED_HTTP:
break;
case LWS_CALLBACK_CLOSED:
case LWS_CALLBACK_CLIENT_CONNECTION_ERROR:
if(found_prot)
{
//printf("found prot in closed callback : uid:%d,num:%d (sess:%x)\n",lsession_uid,lsessions_num,pss->session);
if(daemon_obj)
{
//printf("closed: found daemon_obj\n");
node *disconnect_handler = get_member(daemon_obj,"disconnect_handler");
if(disconnect_handler)
{
//printf("disc found\n");
disconnect_handler = resolve_object(state,disconnect_handler);
node *parameters = create_obj("parameters");
node *base_class = get_base_class(state);
node *prot_value = create_class_instance(base_class);
set_obj_string(prot_value,"name","protocol");
set_obj_string(prot_value,"value",get_obj_name(found_prot));
node_AddItem(parameters,prot_value);
inc_obj_refcount(prot_value);
node_AddItem(parameters,pss->session);
inc_obj_refcount(pss->session);
node_AddItem(parameters,sessions);
inc_obj_refcount(sessions);
node *tmp_parent = node_GetParent(disconnect_handler);
node *bmembers = node_GetItemByKey(block,"members");
node_SetParent(disconnect_handler,bmembers);
node *ret_obj = execute_obj(state,disconnect_handler,block,parameters,True,False);//,True);resolve
node_SetParent(disconnect_handler,tmp_parent);
dec_obj_refcount(prot_value);
add_garbage(state,prot_value);
dec_obj_refcount(pss->session);
dec_obj_refcount(sessions);
node *ret_obj_value = node_GetItemByKey(ret_obj,"value");
if(node_GetType(ret_obj_value)==NODE_TYPE_STRING && strlen(node_GetString(ret_obj_value)))
{
}
}
}
lsessions_num--;
node *sessions_num_value = node_GetItemByKey(sessions_num,"value");
node_SetSint32(sessions_num_value,lsessions_num);
delete_session(state,sessions,pss->session);
pss->session = NULL;
//printf("disconnected\n");
}
else
{
printf("closed connection without prot found\n");
if(pss->session)
printf("but a session was found\n");
}
break;
case LWS_CALLBACK_RECEIVE:
if(len>1024)
{ //TODO use some variable
lwsl_err("Server received packet bigger than %u, hanging up\n", 1024);
return(1);
}
if(found_prot)
{
node *parameters = create_obj("parameters");
node *base_class = get_base_class(state);
node *prot_value = create_class_instance(base_class);
set_obj_string(prot_value,"name","protocol");
set_obj_string(prot_value,"value",get_obj_name(found_prot));
node_AddItem(parameters,prot_value);
inc_obj_refcount(prot_value);
char *msg = str_CreateEmpty();
msg = str_AddChars(msg,in,len);
node *msg_value = create_class_instance(base_class);
set_obj_string(msg_value,"name","message");
set_obj_string(msg_value,"value",msg);
node_AddItem(parameters,msg_value);
inc_obj_refcount(msg_value);
free(msg);
/*node *session_value = create_class_instance(base_class);
reset_obj_refcount(session_value);
add_garbage(state,session_value);
set_obj_string(session_value,"name","session_id");
set_obj_int(session_value,"value",lsession_uid);
set_obj_int(session_value,"item_index",2);
node_AddItem(parameters,session_value);
*/
node_AddItem(parameters,pss->session);
inc_obj_refcount(pss->session);
//node_AddItem(parameters,daemon_obj);
//inc_obj_refcount(daemon_obj);
node_AddItem(parameters,sessions);
inc_obj_refcount(sessions);
//printf("recv callback\n");
//fflush(stdout);
node *tmp_parent = node_GetParent(found_prot);
node *bmembers = node_GetItemByKey(block,"members");
node_SetParent(found_prot,bmembers);
node *ret_obj = execute_obj(state,found_prot,block,parameters,True,False);//,True);resolve
node_SetParent(found_prot,tmp_parent);
//printf("recv callback finished\n");
//fflush(stdout);
dec_obj_refcount(msg_value);
dec_obj_refcount(prot_value);
add_garbage(state,msg_value);//TODO check if "just survives"
add_garbage(state,prot_value);
dec_obj_refcount(pss->session);
dec_obj_refcount(sessions);
//dec_obj_refcount(daemon_obj);
//printf("recv gc\n");
//fflush(stdout);
//node *ret_obj_value = node_GetItemByKey(ret_obj,"value");
//char *me = node_GetString(ret_obj_value);
//printf("returned string:[%s]\n",me);
node *ret_obj_value = node_GetItemByKey(ret_obj,"value");
if(node_GetType(ret_obj_value)==NODE_TYPE_STRING && strlen(node_GetString(ret_obj_value)))
{
//printf("returning message: [%s] :%d\n",node_GetString(ret_obj_value),strlen(node_GetString(ret_obj_value)));
//node *ret_obj_copy = node_CopyTree(ret_obj,True,True);
node *ret_obj_copy = copy_class(ret_obj);
//reset_obj_refcount(ret_obj_copy);
set_obj_string(ret_obj_copy,"name","message");
add_member(pss->session,ret_obj_copy);
inc_obj_refcount(ret_obj_copy);
//set_obj_string(ret_obj,"name","message");
//add_member(pss->session,ret_obj);
//inc_obj_refcount(ret_obj);
}
libwebsocket_callback_on_writable(context, wsi);
}
break;
default:
break;
}
return(0);
}
int lws_client_callback(struct libwebsocket_context* context, struct libwebsocket *ws, enum libwebsocket_callback_reasons reason, void *user, void *data, size_t len){
const struct libwebsocket_protocols* lws_protocol = (ws == NULL ? NULL : libwebsockets_get_protocol(ws));
int idx = lws_protocol? lws_protocol->protocol_index : 0;
Connection* conn;
Reactor* reactor = NULL;
Protocol* protocol;
for (int i=0; i<(int)reactors.size(); i++){
if (reactors[i]->getContext() == context){
reactor = reactors[i];
protocol = reactor->protocol(idx);
conn = ((Client*) reactor)->getConnection();
if (conn){
conn->context = context;
}
break;
} else {
}
}
ofLog( OF_LOG_VERBOSE, "[ofxLibwebsockets] " + getCallbackReason(reason) );
if (reason == LWS_CALLBACK_CLIENT_ESTABLISHED ){
libwebsocket_callback_on_writable(context, ws);
} else if (reason == LWS_CALLBACK_CLOSED){
}
switch (reason)
{
// cases we may use in the future
case LWS_CALLBACK_CONFIRM_EXTENSION_OKAY:
case LWS_CALLBACK_CLIENT_CONFIRM_EXTENSION_SUPPORTED:
case LWS_CALLBACK_PROTOCOL_INIT: // this may be useful, says we're OK to allocate protocol data
case LWS_CALLBACK_WSI_CREATE:
case LWS_CALLBACK_HTTP_BODY_COMPLETION:
case LWS_CALLBACK_HTTP_FILE_COMPLETION:
case LWS_CALLBACK_HTTP_WRITEABLE:
case LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION:
return 0;
// check if we allow this connection (default is always yes)
case LWS_CALLBACK_FILTER_HTTP_CONNECTION:
case LWS_CALLBACK_FILTER_NETWORK_CONNECTION:
if (protocol != NULL){
return reactor->_allow(ws, protocol, (int)(long)user)? 0 : 1;
} else {
return 0;
}
// need to serve up an HTTP file
case LWS_CALLBACK_HTTP:
if ( reactor != NULL){
return reactor->_http(ws, (char*)data);
} else {
return 0;
}
// we're not really worried about these at the moment
case LWS_CALLBACK_CLOSED_HTTP:
case LWS_CALLBACK_ADD_POLL_FD:
case LWS_CALLBACK_DEL_POLL_FD:
case LWS_CALLBACK_CHANGE_MODE_POLL_FD:
case LWS_CALLBACK_LOCK_POLL:
case LWS_CALLBACK_UNLOCK_POLL:
case LWS_CALLBACK_GET_THREAD_ID:
case LWS_CALLBACK_CLIENT_FILTER_PRE_ESTABLISH:
case LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER:
return 1;
// catch-all for most important events:
// LWS_CALLBACK_CLIENT_CONNECTION_ERROR
// LWS_CALLBACK_CLIENT_ESTABLISHED
// LWS_CALLBACK_RECEIVE
// LWS_CALLBACK_CLIENT_RECEIVE
// LWS_CALLBACK_CLIENT_RECEIVE_PONG
// LWS_CALLBACK_CLIENT_WRITEABLE
default:
if ( reactor != NULL ){
//conn = *(Connection**)user;
if (conn && conn->ws != ws && ws != NULL){
conn->ws = ws;
conn->context = context;
}
return reactor->_notify(conn, reason, (char*)data, len);
} else {
return 0;
}
}
return 1; // FAIL (e.g. unhandled case/break in switch)
}
int lws_callback(struct libwebsocket_context* context, struct libwebsocket *ws,
enum libwebsocket_callback_reasons reason, void *user, void *data, size_t len)
{
const struct libwebsocket_protocols* lws_protocol = (ws == NULL ? NULL : libwebsockets_get_protocol(ws));
int idx = lws_protocol? lws_protocol->protocol_index : 0;
// valid connection w/o a protocol
if ( ws != NULL && lws_protocol == NULL ){
// OK for now, returning 0 above
}
//bool bAllowAllProtocls = (ws != NULL ? lws_protocol == NULL : false);
Connection* conn;
Connection** conn_ptr = (Connection**)user;
Server* reactor = NULL;
Protocol* protocol = NULL;
for (int i=0; i<(int)reactors.size(); i++){
if (reactors[i]->getContext() == context){
reactor = (Server*) reactors[i];
protocol = reactor->protocol( (idx > 0 ? idx : 0) );
break;
} else {
}
}
ofLog( OF_LOG_VERBOSE, "[ofxLibwebsockets] "+ getCallbackReason(reason) );
if (reason == LWS_CALLBACK_ESTABLISHED){
// server completed handshake, need to ask for next "writable" callback
libwebsocket_callback_on_writable(context, ws);
// now is when you can set the "user" data,
// which we use to instantiate / refer to the ofxLibwebsockets::Connection
if ( reactor != NULL ){
*conn_ptr = new Connection(reactor, protocol);
}
} else if (reason == LWS_CALLBACK_CLOSED){
//if (*conn_ptr != NULL)
//delete *conn_ptr;
}
switch (reason)
{
// we may use these in the future!
case LWS_CALLBACK_WSI_CREATE:
case LWS_CALLBACK_WSI_DESTROY:
case LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION:
case LWS_CALLBACK_HTTP_BODY_COMPLETION:
case LWS_CALLBACK_HTTP_FILE_COMPLETION:
case LWS_CALLBACK_HTTP_WRITEABLE:
case LWS_CALLBACK_CLOSED_HTTP:
case LWS_CALLBACK_CLIENT_CONFIRM_EXTENSION_SUPPORTED:
case LWS_CALLBACK_SERVER_NEW_CLIENT_INSTANTIATED:
case LWS_CALLBACK_FILTER_NETWORK_CONNECTION:
return 0;
case LWS_CALLBACK_FILTER_HTTP_CONNECTION:
if (protocol != NULL ){
// return 0 == allow, 1 == block
return reactor->_allow(ws, protocol, (int)(long)data) ? 0 : 1;
} else {
return 0;
}
case LWS_CALLBACK_PROTOCOL_INIT:
return 0;
case LWS_CALLBACK_HTTP:
return reactor->_http(ws, (char*)data);
// we're not really worried about this at the moment
case LWS_CALLBACK_ADD_POLL_FD:
case LWS_CALLBACK_DEL_POLL_FD:
case LWS_CALLBACK_LOCK_POLL:
case LWS_CALLBACK_UNLOCK_POLL:
case LWS_CALLBACK_CHANGE_MODE_POLL_FD:
case LWS_CALLBACK_PROTOCOL_DESTROY:
case LWS_CALLBACK_GET_THREAD_ID:
case LWS_CALLBACK_CLIENT_FILTER_PRE_ESTABLISH:
return 0;
case LWS_CALLBACK_CLIENT_CONNECTION_ERROR:
case LWS_CALLBACK_ESTABLISHED:
case LWS_CALLBACK_CLIENT_ESTABLISHED:
case LWS_CALLBACK_CLOSED:
case LWS_CALLBACK_SERVER_WRITEABLE:
case LWS_CALLBACK_CLIENT_WRITEABLE:
case LWS_CALLBACK_RECEIVE: // server receive
case LWS_CALLBACK_CLIENT_RECEIVE: // client receive
case LWS_CALLBACK_CLIENT_RECEIVE_PONG:
if ( user != NULL ){
conn = *(Connection**)user;
}
if (conn != NULL && (conn->ws != ws || conn->ws == NULL) ){
conn->context = context;
conn->ws = ws;
conn->setupAddress();
}
if (reactor){
return reactor->_notify(conn, reason, (char*)data, len);
} else {
return 0;
}
default:
break;
}
return 0;
}