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366 lines (320 loc) · 15 KB
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#include "../src/Network.h"
#include "../src/uWS.h"
#include <node.h>
#include <node_buffer.h>
#include <cstring>
#include <iostream>
#include <future>
// move this to core?
#include <openssl/ssl.h>
#include <openssl/bio.h>
#include <uv.h>
using namespace std;
using namespace v8;
using namespace uWS;
enum {
CONNECTION_CALLBACK = 1,
DISCONNECTION_CALLBACK,
MESSAGE_CALLBACK,
PING_CALLBACK,
PONG_CALLBACK
};
Persistent<Object> persistentTicket;
void Server(const FunctionCallbackInfo<Value> &args) {
if (args.IsConstructCall()) {
try {
args.This()->SetAlignedPointerInInternalField(0, new uWS::Server(args[0]->IntegerValue(), true, args[1]->IntegerValue(), args[2]->IntegerValue()));
// todo: these needs to be removed on destruction
args.This()->SetAlignedPointerInInternalField(CONNECTION_CALLBACK, new Persistent<Function>);
args.This()->SetAlignedPointerInInternalField(DISCONNECTION_CALLBACK, new Persistent<Function>);
args.This()->SetAlignedPointerInInternalField(MESSAGE_CALLBACK, new Persistent<Function>);
args.This()->SetAlignedPointerInInternalField(PING_CALLBACK, new Persistent<Function>);
args.This()->SetAlignedPointerInInternalField(PONG_CALLBACK, new Persistent<Function>);
} catch (...) {
args.This()->Set(String::NewFromUtf8(args.GetIsolate(), "error"), Boolean::New(args.GetIsolate(), true));
}
args.GetReturnValue().Set(args.This());
}
}
struct Socket : uWS::WebSocket {
Socket(uv_poll_t *s) : uWS::WebSocket(s) {}
Socket(const uWS::WebSocket &s) : uWS::WebSocket(s) {}
uv_poll_t **getSocketPtr() {return &p;}
};
inline Local<Number> wrapSocket(uWS::WebSocket socket, Isolate *isolate) {
return Number::New(isolate, *(double *) Socket(socket).getSocketPtr());
}
inline uWS::WebSocket unwrapSocket(Local<Number> number) {
union {
double number;
uv_poll_t *socket;
} socketUnwrapper = {number->Value()};
return Socket(socketUnwrapper.socket);
}
void onConnection(const FunctionCallbackInfo<Value> &args) {
uWS::Server *server = (uWS::Server *) args.Holder()->GetAlignedPointerFromInternalField(0);
Isolate *isolate = args.GetIsolate();
Persistent<Function> *connectionCallback = (Persistent<Function> *) args.Holder()->GetAlignedPointerFromInternalField(CONNECTION_CALLBACK);
connectionCallback->Reset(isolate, Local<Function>::Cast(args[0]));
server->onConnection([isolate, connectionCallback](uWS::WebSocket socket) {
HandleScope hs(isolate);
Local<Value> argv[] = {wrapSocket(socket, isolate)};
node::MakeCallback(isolate, isolate->GetCurrentContext()->Global(), Local<Function>::New(isolate, *connectionCallback), 1, argv);
});
}
inline Local<Value> getDataV8(uWS::WebSocket socket, Isolate *isolate) {
return socket.getData() ? Local<Value>::New(isolate, *(Persistent<Value> *) socket.getData()) : Local<Value>::Cast(Undefined(isolate));
}
void onMessage(const FunctionCallbackInfo<Value> &args) {
uWS::Server *server = (uWS::Server *) args.Holder()->GetAlignedPointerFromInternalField(0);
Isolate *isolate = args.GetIsolate();
Persistent<Function> *messageCallback = (Persistent<Function> *) args.Holder()->GetAlignedPointerFromInternalField(MESSAGE_CALLBACK);
messageCallback->Reset(isolate, Local<Function>::Cast(args[0]));
server->onMessage([isolate, messageCallback](uWS::WebSocket socket, const char *message, size_t length, uWS::OpCode opCode) {
HandleScope hs(isolate);
Local<Value> argv[] = {wrapSocket(socket, isolate),
node::Buffer::New(isolate, (char *) message, length, [](char *data, void *hint) {}, nullptr).ToLocalChecked(),
Boolean::New(isolate, opCode == BINARY),
getDataV8(socket, isolate)};
node::MakeCallback(isolate, isolate->GetCurrentContext()->Global(), Local<Function>::New(isolate, *messageCallback), 4, argv);
});
}
void onPing(const FunctionCallbackInfo<Value> &args) {
uWS::Server *server = (uWS::Server *) args.Holder()->GetAlignedPointerFromInternalField(0);
Isolate *isolate = args.GetIsolate();
Persistent<Function> *pingCallback = (Persistent<Function> *) args.Holder()->GetAlignedPointerFromInternalField(PING_CALLBACK);
pingCallback->Reset(isolate, Local<Function>::Cast(args[0]));
server->onPing([isolate, pingCallback](uWS::WebSocket socket, const char *message, size_t length) {
HandleScope hs(isolate);
Local<Value> argv[] = {wrapSocket(socket, isolate),
node::Buffer::New(isolate, (char *) message, length, [](char *data, void *hint) {}, nullptr).ToLocalChecked(),
getDataV8(socket, isolate)};
node::MakeCallback(isolate, isolate->GetCurrentContext()->Global(), Local<Function>::New(isolate, *pingCallback), 3, argv);
});
}
void onPong(const FunctionCallbackInfo<Value> &args) {
uWS::Server *server = (uWS::Server *) args.Holder()->GetAlignedPointerFromInternalField(0);
Isolate *isolate = args.GetIsolate();
Persistent<Function> *pongCallback = (Persistent<Function> *) args.Holder()->GetAlignedPointerFromInternalField(PONG_CALLBACK);
pongCallback->Reset(isolate, Local<Function>::Cast(args[0]));
server->onPong([isolate, pongCallback](uWS::WebSocket socket, const char *message, size_t length) {
HandleScope hs(isolate);
Local<Value> argv[] = {wrapSocket(socket, isolate),
node::Buffer::New(isolate, (char *) message, length, [](char *data, void *hint) {}, nullptr).ToLocalChecked(),
getDataV8(socket, isolate)};
node::MakeCallback(isolate, isolate->GetCurrentContext()->Global(), Local<Function>::New(isolate, *pongCallback), 3, argv);
});
}
void onDisconnection(const FunctionCallbackInfo<Value> &args) {
uWS::Server *server = (uWS::Server *) args.Holder()->GetAlignedPointerFromInternalField(0);
Isolate *isolate = args.GetIsolate();
Persistent<Function> *disconnectionCallback = (Persistent<Function> *) args.Holder()->GetAlignedPointerFromInternalField(DISCONNECTION_CALLBACK);
disconnectionCallback->Reset(isolate, Local<Function>::Cast(args[0]));
server->onDisconnection([isolate, disconnectionCallback](uWS::WebSocket socket, int code, char *message, size_t length) {
HandleScope hs(isolate);
Local<Value> argv[] = {wrapSocket(socket, isolate),
Integer::New(isolate, code),
node::Buffer::New(isolate, (char *) message, length, [](char *data, void *hint) {}, nullptr).ToLocalChecked(),
getDataV8(socket, isolate)};
node::MakeCallback(isolate, isolate->GetCurrentContext()->Global(), Local<Function>::New(isolate, *disconnectionCallback), 4, argv);
});
}
void setData(const FunctionCallbackInfo<Value> &args)
{
uWS::WebSocket socket = unwrapSocket(args[0]->ToNumber());
if (socket.getData()) {
/* reset data when only specifying the socket */
if (args.Length() == 1) {
((Persistent<Value> *) socket.getData())->Reset();
delete (Persistent<Value> *) socket.getData();
} else {
((Persistent<Value> *) socket.getData())->Reset(args.GetIsolate(), args[1]);
}
} else {
socket.setData(new Persistent<Value>(args.GetIsolate(), args[1]));
}
}
void getData(const FunctionCallbackInfo<Value> &args)
{
args.GetReturnValue().Set(getDataV8(unwrapSocket(args[0]->ToNumber()), args.GetIsolate()));
}
class NativeString {
char *data;
size_t length;
char utf8ValueMemory[sizeof(String::Utf8Value)];
String::Utf8Value *utf8Value = nullptr;
public:
NativeString(const Local<Value> &value)
{
if (value->IsUndefined()) {
data = nullptr;
length = 0;
} else if (value->IsString()) {
utf8Value = new (utf8ValueMemory) String::Utf8Value(value);
data = (**utf8Value);
length = utf8Value->length();
} else if (node::Buffer::HasInstance(value)) {
data = node::Buffer::Data(value);
length = node::Buffer::Length(value);
} else if (value->IsTypedArray()) {
Local<ArrayBufferView> arrayBuffer = Local<ArrayBufferView>::Cast(value);
ArrayBuffer::Contents contents = arrayBuffer->Buffer()->GetContents();
length = contents.ByteLength();
data = (char *) contents.Data();
} else {
static char empty[] = "";
data = empty;
length = 0;
}
}
char *getData() {return data;}
size_t getLength() {return length;}
~NativeString()
{
if (utf8Value) {
utf8Value->~Utf8Value();
}
}
};
void close(const FunctionCallbackInfo<Value> &args)
{
uWS::Server *server = (uWS::Server *) args.Holder()->GetAlignedPointerFromInternalField(0);
if (args.Length()) {
// socket, code, data
uWS::WebSocket socket = unwrapSocket(args[0]->ToNumber());
NativeString nativeString(args[2]);
socket.close(false, args[1]->IntegerValue(), nativeString.getData(), nativeString.getLength());
} else {
server->close(false);
}
}
void upgrade(const FunctionCallbackInfo<Value> &args)
{
uWS::Server *server = (uWS::Server *) args.Holder()->GetAlignedPointerFromInternalField(0);
Local<Object> ticket = args[0]->ToObject();
NativeString secKey(args[1]);
NativeString extensions(args[2]);
uv_os_sock_t *fd = (uv_os_sock_t *) ticket->GetAlignedPointerFromInternalField(0);
SSL *ssl = (SSL *) ticket->GetAlignedPointerFromInternalField(1);
server->upgrade(*fd, secKey.getData(), ssl, extensions.getData(), extensions.getLength());
delete fd;
}
uv_handle_t *getTcpHandle(void *handleWrap)
{
volatile char *memory = (volatile char *) handleWrap;
for (volatile uv_handle_t *tcpHandle = (volatile uv_handle_t *) memory; tcpHandle->type != UV_TCP
|| tcpHandle->data != handleWrap || tcpHandle->loop != uv_default_loop(); tcpHandle = (volatile uv_handle_t *) memory) {
memory++;
}
return (uv_handle_t *) memory;
}
void transfer(const FunctionCallbackInfo<Value> &args)
{
/* (_handle.fd OR _handle), SSL */
uv_os_sock_t *fd = new uv_os_sock_t;
if (args[0]->IsObject()) {
uv_fileno(getTcpHandle(args[0]->ToObject()->GetAlignedPointerFromInternalField(0)), (uv_os_fd_t *) fd);
} else {
*fd = args[0]->IntegerValue();
}
*fd = dup(*fd);
SSL *ssl = nullptr;
if (args[1]->IsExternal()) {
ssl = (SSL *) args[1].As<External>()->Value();
ssl->references++;
}
Local<Object> ticket = Local<Object>::New(args.GetIsolate(), persistentTicket)->Clone();
ticket->SetAlignedPointerInInternalField(0, fd);
ticket->SetAlignedPointerInInternalField(1, ssl);
args.GetReturnValue().Set(ticket);
}
struct SendCallback {
Persistent<Function> jsCallback;
Isolate *isolate;
};
void sendCallback(uWS::WebSocket webSocket, void *data, bool cancelled)
{
SendCallback *sc = (SendCallback *) data;
if (!cancelled) {
HandleScope hs(sc->isolate);
node::MakeCallback(sc->isolate, sc->isolate->GetCurrentContext()->Global(), Local<Function>::New(sc->isolate, sc->jsCallback), 0, nullptr);
}
sc->jsCallback.Reset();
delete sc;
}
void send(const FunctionCallbackInfo<Value> &args)
{
OpCode opCode = (uWS::OpCode) args[2]->IntegerValue();
NativeString nativeString(args[1]);
SendCallback *sc = nullptr;
void (*callback)(WebSocket, void *, bool) = nullptr;
if (args[3]->IsFunction()) {
callback = sendCallback;
sc = new SendCallback;
sc->jsCallback.Reset(args.GetIsolate(), Local<Function>::Cast(args[3]));
sc->isolate = args.GetIsolate();
}
unwrapSocket(args[0]->ToNumber())
.send(nativeString.getData(),
nativeString.getLength(),
opCode, callback, sc);
}
void getAddress(const FunctionCallbackInfo<Value> &args)
{
uWS::WebSocket::Address address = unwrapSocket(args[0]->ToNumber()).getAddress();
Local<Array> array = Array::New(args.GetIsolate(), 3);
array->Set(0, Integer::New(args.GetIsolate(), address.port));
array->Set(1, String::NewFromUtf8(args.GetIsolate(), address.address));
array->Set(2, String::NewFromUtf8(args.GetIsolate(), address.family));
args.GetReturnValue().Set(array);
}
void broadcast(const FunctionCallbackInfo<Value> &args)
{
uWS::Server *server = (uWS::Server *) args.Holder()->GetAlignedPointerFromInternalField(0);
OpCode opCode = args[1]->BooleanValue() ? BINARY : TEXT;
NativeString nativeString(args[0]);
server->broadcast(nativeString.getData(), nativeString.getLength(), opCode);
}
void prepareMessage(const FunctionCallbackInfo<Value> &args)
{
OpCode opCode = (uWS::OpCode) args[1]->IntegerValue();
NativeString nativeString(args[0]);
Local<Object> preparedMessage = Local<Object>::New(args.GetIsolate(), persistentTicket)->Clone();
preparedMessage->SetAlignedPointerInInternalField(0, WebSocket::prepareMessage(nativeString.getData(), nativeString.getLength(), opCode, false));
args.GetReturnValue().Set(preparedMessage);
}
void sendPrepared(const FunctionCallbackInfo<Value> &args)
{
unwrapSocket(args[0]->ToNumber())
.sendPrepared((WebSocket::PreparedMessage *) args[1]->ToObject()->GetAlignedPointerFromInternalField(0));
}
void finalizeMessage(const FunctionCallbackInfo<Value> &args)
{
WebSocket::finalizeMessage((WebSocket::PreparedMessage *) args[0]->ToObject()->GetAlignedPointerFromInternalField(0));
}
void Main(Local<Object> exports) {
Isolate *isolate = exports->GetIsolate();
Local<FunctionTemplate> tpl = FunctionTemplate::New(isolate, ::Server);
tpl->InstanceTemplate()->SetInternalFieldCount(6);
NODE_SET_PROTOTYPE_METHOD(tpl, "onConnection", onConnection);
NODE_SET_PROTOTYPE_METHOD(tpl, "onMessage", onMessage);
NODE_SET_PROTOTYPE_METHOD(tpl, "onPing", onPing);
NODE_SET_PROTOTYPE_METHOD(tpl, "onPong", onPong);
NODE_SET_PROTOTYPE_METHOD(tpl, "onDisconnection", onDisconnection);
NODE_SET_PROTOTYPE_METHOD(tpl, "close", close);
NODE_SET_PROTOTYPE_METHOD(tpl, "broadcast", broadcast);
NODE_SET_PROTOTYPE_METHOD(tpl, "upgrade", upgrade);
NODE_SET_PROTOTYPE_METHOD(tpl, "transfer", transfer);
NODE_SET_PROTOTYPE_METHOD(tpl, "setData", setData);
NODE_SET_PROTOTYPE_METHOD(tpl, "getData", getData);
NODE_SET_PROTOTYPE_METHOD(tpl, "send", send);
NODE_SET_PROTOTYPE_METHOD(tpl, "prepareMessage", prepareMessage);
NODE_SET_PROTOTYPE_METHOD(tpl, "sendPrepared", sendPrepared);
NODE_SET_PROTOTYPE_METHOD(tpl, "finalizeMessage", finalizeMessage);
NODE_SET_PROTOTYPE_METHOD(tpl, "getAddress", getAddress);
exports->Set(String::NewFromUtf8(isolate, "Server"), tpl->GetFunction());
Local<ObjectTemplate> ticketTemplate = ObjectTemplate::New(isolate);
ticketTemplate->SetInternalFieldCount(2);
persistentTicket.Reset(isolate, ticketTemplate->NewInstance());
}
NODE_MODULE(uws, Main)
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