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412 lines (345 loc) · 18.7 KB
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/*
* Authored by Alex Hultman, 2018-2026.
* Intellectual property of third-party.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "App.h"
#include "Utilities.h"
#include <v8.h>
#include "v8-fast-api-calls.h"
using namespace v8;
/* todo: probably isCorked, cork should be exposed? */
struct WebSocketWrapper {
template <bool SSL>
static inline uWS::WebSocket<SSL, true, PerSocketData> *getWebSocket(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = (uWS::WebSocket<SSL, true, PerSocketData> *) getInternalPointer(args.This());//->GetAlignedPointerFromInternalField(0);
if (!ws) {
args.GetReturnValue().Set(isolate->ThrowException(v8::Exception::Error(String::NewFromUtf8(isolate, "Invalid access of closed uWS.WebSocket/SSLWebSocket.", NewStringType::kNormal).ToLocalChecked())));
}
return ws;
}
static inline void invalidateWsObject(const FunctionCallbackInfo<Value> &args) {
//args.This()->SetAlignedPointerInInternalField(0, nullptr);
setInternalPointer(args.This(), nullptr);
}
/* Takes nothing returns holder (only used to fool TypeScript, as a conversion from WS to UserData) */
template <bool SSL>
static void uWS_WebSocket_getUserData(const FunctionCallbackInfo<Value> &args) {
args.GetReturnValue().Set(args.This());
}
/* Takes string topic */
template <bool SSL>
static void uWS_WebSocket_subscribe(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = getWebSocket<SSL>(args);
if (ws) {
NativeString<true> topic(isolate, args[0]);
if (topic.isInvalid(args)) {
return;
}
bool success = ws->subscribe(topic.getString());
args.GetReturnValue().Set(Boolean::New(isolate, success));
}
}
/* Takes string topic, returns boolean success */
template <bool SSL>
static void uWS_WebSocket_unsubscribe(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = getWebSocket<SSL>(args);
if (ws) {
NativeString<true> topic(isolate, args[0]);
if (topic.isInvalid(args)) {
return;
}
bool success = ws->unsubscribe(topic.getString());
args.GetReturnValue().Set(Boolean::New(isolate, success));
}
}
/* Takes string topic, message, returns boolean success */
template <bool SSL>
static void uWS_WebSocket_publish(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = getWebSocket<SSL>(args);
if (ws) {
if (missingArguments(2, args)) {
return;
}
bool isBinary = args[2]->BooleanValue(isolate);
bool compress = args[3]->BooleanValue(isolate);
NativeString<true> topic(isolate, args[0]);
if (topic.isInvalid(args)) {
return;
}
NativeString<true> message(isolate, args[1]);
if (message.isInvalid(args)) {
return;
}
bool success = ws->publish(topic.getString(), message.getString(), isBinary ? uWS::OpCode::BINARY : uWS::OpCode::TEXT, compress);
args.GetReturnValue().Set(Boolean::New(isolate, success));
}
}
/* It would make sense to call terminate "close" and call close "end" to line up with HTTP */
/* That also makes sense seince close takes message and code -> you can end with a string message */
/* Takes nothing returns nothing */
template <bool SSL>
static void uWS_WebSocket_close(const FunctionCallbackInfo<Value> &args) {
auto *ws = getWebSocket<SSL>(args);
if (ws) {
invalidateWsObject(args);
ws->close();
}
}
/* Takes code, message, returns undefined */
template <bool SSL>
static void uWS_WebSocket_end(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = getWebSocket<SSL>(args);
if (ws) {
int code = 0;
if (args.Length() >= 1) {
code = args[0]->Uint32Value(isolate->GetCurrentContext()).ToChecked();
}
NativeString<true> message(args.GetIsolate(), args[1]);
if (message.isInvalid(args)) {
return;
}
invalidateWsObject(args);
ws->end(code, message.getString());
}
}
/* Takes nothing returns arraybuffer */
template <bool SSL>
static void uWS_WebSocket_getRemoteAddress(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = getWebSocket<SSL>(args);
if (ws) {
std::string_view ip = ws->getRemoteAddress();
args.GetReturnValue().Set(ArrayBuffer_NewCopy(isolate, (void *) ip.data(), ip.length()));
}
}
/* Takes nothing returns arraybuffer */
template <bool SSL>
static void uWS_WebSocket_getRemoteAddressAsText(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = getWebSocket<SSL>(args);
if (ws) {
std::string_view ip = ws->getRemoteAddressAsText();
args.GetReturnValue().Set(ArrayBuffer_NewCopy(isolate, (void *) ip.data(), ip.length()));
}
}
/* Takes nothing, returns integer */
template <bool SSL>
static void uWS_WebSocket_getRemotePort(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = getWebSocket<SSL>(args);
if (ws) {
unsigned int port = ws->getRemotePort();
args.GetReturnValue().Set(Integer::NewFromUnsigned(isolate, port));
}
}
/* Takes nothing, returns integer */
template <bool SSL>
static void uWS_WebSocket_getBufferedAmount(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = getWebSocket<SSL>(args);
if (ws) {
unsigned int bufferedAmount = ws->getBufferedAmount();
args.GetReturnValue().Set(Integer::NewFromUnsigned(isolate, bufferedAmount));
}
}
/* Takes message, isBinary, compressed. Returns true on success, false otherwise */
template <bool SSL>
static void uWS_WebSocket_sendFirstFragment(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = getWebSocket<SSL>(args);
if (ws) {
NativeString message(args.GetIsolate(), args[0]);
if (message.isInvalid(args)) {
return;
}
unsigned int sendStatus = ws->sendFirstFragment(message.getString(), args[1]->BooleanValue(isolate) ? uWS::OpCode::BINARY : uWS::OpCode::TEXT, args[2]->BooleanValue(isolate));
args.GetReturnValue().Set(Integer::NewFromUnsigned(isolate, sendStatus));
}
}
/* Takes message, compressed. Returns true on success, false otherwise */
template <bool SSL>
static void uWS_WebSocket_sendFragment(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = getWebSocket<SSL>(args);
if (ws) {
NativeString message(args.GetIsolate(), args[0]);
if (message.isInvalid(args)) {
return;
}
unsigned int sendStatus = ws->sendFragment(message.getString(), args[1]->BooleanValue(isolate));
args.GetReturnValue().Set(Integer::NewFromUnsigned(isolate, sendStatus));
}
}
/* Takes message, compressed. Returns true on success, false otherwise */
template <bool SSL>
static void uWS_WebSocket_sendLastFragment(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = getWebSocket<SSL>(args);
if (ws) {
NativeString message(args.GetIsolate(), args[0]);
if (message.isInvalid(args)) {
return;
}
unsigned int sendStatus = ws->sendLastFragment(message.getString(), args[1]->BooleanValue(isolate));
args.GetReturnValue().Set(Integer::NewFromUnsigned(isolate, sendStatus));
}
}
/* Takes message, isBinary, compressed. Returns true on success, false otherwise */
template <bool SSL>
static void uWS_WebSocket_send(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = getWebSocket<SSL>(args);
if (ws) {
bool isBinary = args[1]->BooleanValue(isolate);
bool compress = args[2]->BooleanValue(isolate);
NativeString<true> message(args.GetIsolate(), args[0]);
if (message.isInvalid(args)) {
return;
}
unsigned int sendStatus = ws->send(message.getString(), isBinary ? uWS::OpCode::BINARY : uWS::OpCode::TEXT, compress);
args.GetReturnValue().Set(Integer::NewFromUnsigned(isolate, sendStatus));
}
}
/* Takes topic string, returns bool */
template <bool SSL>
static void uWS_WebSocket_isSubscribed(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = getWebSocket<SSL>(args);
if (ws) {
NativeString<true> topic(args.GetIsolate(), args[0]);
if (topic.isInvalid(args)) {
return;
}
bool subscribed = ws->isSubscribed(topic.getString());
args.GetReturnValue().Set(Boolean::New(isolate, subscribed));
}
}
/* Takes message. Returns true on success, false otherwise */
template <bool SSL>
static void uWS_WebSocket_ping(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = getWebSocket<SSL>(args);
if (ws) {
NativeString<true> message(args.GetIsolate(), args[0]);
if (message.isInvalid(args)) {
return;
}
/* This is a wrapper that does not exist in the C++ project */
unsigned int sendStatus = ws->send(message.getString(), uWS::OpCode::PING);
args.GetReturnValue().Set(Integer::NewFromUnsigned(isolate, sendStatus));
}
}
/* Takes function, returns this */
template <bool SSL>
static void uWS_WebSocket_cork(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = getWebSocket<SSL>(args);
if (ws) {
ws->cork([cb = Local<Function>::Cast(args[0]), isolate]() {
/* No need for CallJS here */
cb->Call(isolate->GetCurrentContext(), isolate->GetCurrentContext()->Global(), 0, nullptr).IsEmpty();
});
args.GetReturnValue().Set(args.This());
}
}
/* This one is wrapped instead of iterateTopics as JS-people will put their hands in wood chipper for sure. */
template <bool SSL>
static void uWS_WebSocket_getTopics(const FunctionCallbackInfo<Value> &args) {
Isolate *isolate = args.GetIsolate();
auto *ws = getWebSocket<SSL>(args);
if (ws) {
Local<Array> topicsArray = Array::New(isolate, 0);
ws->iterateTopics([&topicsArray, isolate](std::string_view topic) {
Local<String> topicString = String::NewFromUtf8(isolate, topic.data(), NewStringType::kNormal, topic.length()).ToLocalChecked();
topicsArray->Set(isolate->GetCurrentContext(), topicsArray->Length(), topicString).IsNothing();
});
args.GetReturnValue().Set(topicsArray);
}
}
/* V8 fast call fast path for send - called directly from JIT-optimised code.
* Requirements: no JS heap allocation, no JS execution, Uint8Array arg only.
* A null internal-field pointer (closed socket) sets options.fallback = true so V8
* re-invokes the slow path which throws the proper exception. */
// Version A: Handles Strings
template <bool SSL>
static uint32_t uWS_WebSocket_send_fast_string(v8::Local<v8::Object> receiver,
const v8::FastOneByteString& message,
bool isBinary, bool compress) {
auto *ws = (uWS::WebSocket<SSL, true, PerSocketData> *) getInternalPointer(receiver);//->GetAlignedPointerFromInternalField(0);
if (!ws) return 0;
return ws->send(std::string_view(message.data, message.length),
isBinary ? uWS::OpCode::BINARY : uWS::OpCode::TEXT, compress);
}
// Version B: Handles ArrayBuffer/TypedArray
template <bool SSL>
static uint32_t uWS_WebSocket_send_fast_buffer(v8::Local<v8::Object> receiver,
v8::Local<v8::Value> message,
bool isBinary, bool compress) {
auto *ws = (uWS::WebSocket<SSL, true, PerSocketData> *) getInternalPointer(receiver);//->GetAlignedPointerFromInternalField(0);
if (!ws) return 0;
char* data = nullptr;
size_t length = 0;
if (message->IsArrayBufferView()) {
auto view = message.As<v8::ArrayBufferView>();
length = view->ByteLength();
data = static_cast<char*>(view->Buffer()->GetBackingStore()->Data()) + view->ByteOffset();
} else if (message->IsArrayBuffer()) {
auto ab = message.As<v8::ArrayBuffer>();
length = ab->ByteLength();
data = static_cast<char*>(ab->GetBackingStore()->Data());
} else {
// Not a buffer type we handle fast
return 0;
}
return ws->send(std::string_view(data, length),
isBinary ? uWS::OpCode::BINARY : uWS::OpCode::TEXT, compress);
}
template <bool SSL>
static Local<Object> init(Isolate *isolate) {
Local<FunctionTemplate> wsTemplateLocal = FunctionTemplate::New(isolate);
if (SSL) {
wsTemplateLocal->SetClassName(String::NewFromUtf8(isolate, "uWS.SSLWebSocket", NewStringType::kNormal).ToLocalChecked());
} else {
wsTemplateLocal->SetClassName(String::NewFromUtf8(isolate, "uWS.WebSocket", NewStringType::kNormal).ToLocalChecked());
}
wsTemplateLocal->InstanceTemplate()->SetInternalFieldCount(1);
/* Register our functions */
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "sendFirstFragment", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_sendFirstFragment<SSL>));
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "sendFragment", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_sendFragment<SSL>));
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "sendLastFragment", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_sendLastFragment<SSL>));
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getUserData", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_getUserData<SSL>));
static v8::CFunction fast_send = v8::CFunction::Make(uWS_WebSocket_send_fast_buffer<SSL>);
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "send", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_send<SSL>/*, Local<Value>(), Local<Signature>(), 0, ConstructorBehavior::kThrow, SideEffectType::kHasSideEffect, &fast_send*/));
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "end", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_end<SSL>));
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "close", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_close<SSL>));
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getBufferedAmount", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_getBufferedAmount<SSL>));
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getRemoteAddress", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_getRemoteAddress<SSL>));
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "subscribe", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_subscribe<SSL>));
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "unsubscribe", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_unsubscribe<SSL>));
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "publish", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_publish<SSL>));
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "cork", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_cork<SSL>));
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "ping", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_ping<SSL>));
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getRemoteAddressAsText", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_getRemoteAddressAsText<SSL>));
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getRemotePort", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_getRemotePort<SSL>));
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "isSubscribed", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_isSubscribed<SSL>));
/* This one does not exist in C++ */
wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getTopics", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, uWS_WebSocket_getTopics<SSL>));
/* Create the template */
Local<Object> wsObjectLocal = wsTemplateLocal->GetFunction(isolate->GetCurrentContext()).ToLocalChecked()->NewInstance(isolate->GetCurrentContext()).ToLocalChecked();
return wsObjectLocal;
}
};
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