149 lines
6.0 KiB
C++
149 lines
6.0 KiB
C++
#include "App.h"
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#include <v8.h>
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#include "Utilities.h"
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using namespace v8;
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/* todo: probably isCorked, cork should be exposed? */
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struct WebSocketWrapper {
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static Persistent<Object> wsTemplate[2];
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template <bool SSL>
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static inline uWS::WebSocket<SSL, true> *getWebSocket(const FunctionCallbackInfo<Value> &args) {
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auto *ws = (uWS::WebSocket<SSL, true> *) args.Holder()->GetAlignedPointerFromInternalField(0);
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if (!ws) {
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args.GetReturnValue().Set(isolate->ThrowException(String::NewFromUtf8(isolate, "Invalid access of closed uWS.WebSocket/SSLWebSocket.")));
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}
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return ws;
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}
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static inline void invalidateWsObject(const FunctionCallbackInfo<Value> &args) {
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args.Holder()->SetAlignedPointerInInternalField(0, nullptr);
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}
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/* Takes string topic */
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template <bool SSL>
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static void uWS_WebSocket_subscribe(const FunctionCallbackInfo<Value> &args) {
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auto *ws = getWebSocket<SSL>(args);
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if (ws) {
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NativeString topic(isolate, args[0]);
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ws->subscribe(topic.getString());
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}
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}
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/* Takes string topic, message */
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template <bool SSL>
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static void uWS_WebSocket_publish(const FunctionCallbackInfo<Value> &args) {
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auto *ws = getWebSocket<SSL>(args);
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if (ws) {
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NativeString topic(isolate, args[0]);
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NativeString message(isolate, args[1]);
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ws->publish(topic.getString(), message.getString());
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}
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}
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/* It would make sense to call terminate "close" and call close "end" to line up with HTTP */
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/* That also makes sense seince close takes message and code -> you can end with a string message */
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/* Takes nothing returns nothing */
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template <bool SSL>
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static void uWS_WebSocket_close(const FunctionCallbackInfo<Value> &args) {
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auto *ws = getWebSocket<SSL>(args);
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if (ws) {
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invalidateWsObject(args);
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ws->close();
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}
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}
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/* Takes code, message, returns undefined */
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template <bool SSL>
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static void uWS_WebSocket_end(const FunctionCallbackInfo<Value> &args) {
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auto *ws = getWebSocket<SSL>(args);
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if (ws) {
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int code = 0;
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if (args.Length() >= 1) {
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code = args[0]->Uint32Value();
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}
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NativeString message(args.GetIsolate(), args[1]);
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if (message.isInvalid(args)) {
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return;
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}
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invalidateWsObject(args);
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ws->end(code, message.getString());
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}
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}
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/* Takes nothing returns arraybuffer */
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template <bool SSL>
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static void uWS_WebSocket_getRemoteAddress(const FunctionCallbackInfo<Value> &args) {
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auto *ws = getWebSocket<SSL>(args);
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if (ws) {
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std::string_view ip = ws->getRemoteAddress();
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/* Todo: we need to pass a copy here */
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args.GetReturnValue().Set(ArrayBuffer::New(isolate, (void *) ip.data(), ip.length()/*, ArrayBufferCreationMode::kInternalized*/));
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}
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}
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/* Takes nothing, returns integer */
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template <bool SSL>
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static void uWS_WebSocket_getBufferedAmount(const FunctionCallbackInfo<Value> &args) {
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auto *ws = getWebSocket<SSL>(args);
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if (ws) {
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int bufferedAmount = ws->getBufferedAmount();
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args.GetReturnValue().Set(Integer::New(isolate, bufferedAmount));
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}
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}
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/* Takes message, isBinary. Returns true on success, false otherwise */
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template <bool SSL>
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static void uWS_WebSocket_send(const FunctionCallbackInfo<Value> &args) {
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auto *ws = getWebSocket<SSL>(args);
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if (ws) {
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NativeString message(args.GetIsolate(), args[0]);
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if (message.isInvalid(args)) {
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return;
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}
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bool ok = ws->send(message.getString(), args[1]->BooleanValue() ? uWS::OpCode::BINARY : uWS::OpCode::TEXT);
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args.GetReturnValue().Set(Boolean::New(isolate, ok));
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}
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}
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template <bool SSL>
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static void initWsTemplate() {
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Local<FunctionTemplate> wsTemplateLocal = FunctionTemplate::New(isolate);
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if (SSL) {
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wsTemplateLocal->SetClassName(String::NewFromUtf8(isolate, "uWS.SSLWebSocket"));
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} else {
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wsTemplateLocal->SetClassName(String::NewFromUtf8(isolate, "uWS.WebSocket"));
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}
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wsTemplateLocal->InstanceTemplate()->SetInternalFieldCount(1);
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/* Register our functions */
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wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "send"), FunctionTemplate::New(isolate, uWS_WebSocket_send<SSL>));
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wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "end"), FunctionTemplate::New(isolate, uWS_WebSocket_end<SSL>));
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wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "close"), FunctionTemplate::New(isolate, uWS_WebSocket_close<SSL>));
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wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getBufferedAmount"), FunctionTemplate::New(isolate, uWS_WebSocket_getBufferedAmount<SSL>));
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wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getRemoteAddress"), FunctionTemplate::New(isolate, uWS_WebSocket_getRemoteAddress<SSL>));
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wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "subscribe"), FunctionTemplate::New(isolate, uWS_WebSocket_subscribe<SSL>));
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wsTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "publish"), FunctionTemplate::New(isolate, uWS_WebSocket_publish<SSL>));
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/* Create the template */
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Local<Object> wsObjectLocal = wsTemplateLocal->GetFunction()->NewInstance(isolate->GetCurrentContext()).ToLocalChecked();
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wsTemplate[SSL].Reset(isolate, wsObjectLocal);
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}
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/* This is where we output an instance */
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template <class APP>
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static Local<Object> getWsInstance() {
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return Local<Object>::New(isolate, wsTemplate[std::is_same<APP, uWS::SSLApp>::value])->Clone();
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}
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};
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/* Fix this, should be nicer */
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Persistent<Object> WebSocketWrapper::wsTemplate[2];
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