332 lines
14 KiB
C++
332 lines
14 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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/* uWS.App.ws('/pattern', behavior) */
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template <typename APP>
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void uWS_App_ws(const FunctionCallbackInfo<Value> &args) {
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APP *app = (APP *) args.Holder()->GetAlignedPointerFromInternalField(0);
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typename APP::WebSocketBehavior behavior = {};
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NativeString pattern(args.GetIsolate(), args[0]);
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if (pattern.isInvalid(args)) {
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return;
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}
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UniquePersistent<Function> openPf;
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UniquePersistent<Function> messagePf;
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UniquePersistent<Function> drainPf;
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UniquePersistent<Function> closePf;
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struct PerSocketData {
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Persistent<Object> *socketPf;
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};
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/* Get the behavior object */
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if (args.Length() == 2) {
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Local<Object> behaviorObject = Local<Object>::Cast(args[1]);
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/* maxPayloadLength */
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behavior.maxPayloadLength = behaviorObject->Get(String::NewFromUtf8(isolate, "maxPayloadLength"))->Int32Value();
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/* idleTimeout */
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behavior.idleTimeout = behaviorObject->Get(String::NewFromUtf8(isolate, "idleTimeout"))->Int32Value();
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/* Compression, map from 0, 1, 2 to disabled, shared, dedicated */
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int compression = behaviorObject->Get(String::NewFromUtf8(isolate, "compression"))->Int32Value();
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if (compression == 0) {
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behavior.compression = uWS::CompressOptions::DISABLED;
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} else if (compression == 1) {
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behavior.compression = uWS::CompressOptions::SHARED_COMPRESSOR;
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} else if (compression == 2) {
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behavior.compression = uWS::CompressOptions::DEDICATED_COMPRESSOR;
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}
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/* Open */
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openPf.Reset(args.GetIsolate(), Local<Function>::Cast(behaviorObject->Get(String::NewFromUtf8(isolate, "open"))));
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/* Message */
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messagePf.Reset(args.GetIsolate(), Local<Function>::Cast(behaviorObject->Get(String::NewFromUtf8(isolate, "message"))));
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/* Drain */
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drainPf.Reset(args.GetIsolate(), Local<Function>::Cast(behaviorObject->Get(String::NewFromUtf8(isolate, "drain"))));
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/* Close */
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closePf.Reset(args.GetIsolate(), Local<Function>::Cast(behaviorObject->Get(String::NewFromUtf8(isolate, "close"))));
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}
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behavior.open = [openPf = std::move(openPf)](auto *ws, auto *req) {
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HandleScope hs(isolate);
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/* Create a new websocket object */
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Local<Object> wsObject = WebSocketWrapper::getWsInstance<APP>();
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wsObject->SetAlignedPointerInInternalField(0, ws);
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/* Create the HttpRequest wrapper */
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Local<Object> reqObject = HttpRequestWrapper::getReqInstance();
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reqObject->SetAlignedPointerInInternalField(0, req);
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/* Attach a new V8 object with pointer to us, to us */
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PerSocketData *perSocketData = (PerSocketData *) ws->getUserData();
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perSocketData->socketPf = new Persistent<Object>;
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perSocketData->socketPf->Reset(isolate, wsObject);
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Local<Value> argv[] = {wsObject, reqObject};
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Local<Function>::New(isolate, openPf)->Call(isolate->GetCurrentContext()->Global(), 2, argv);
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};
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behavior.message = [messagePf = std::move(messagePf)](auto *ws, std::string_view message, uWS::OpCode opCode) {
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HandleScope hs(isolate);
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Local<ArrayBuffer> messageArrayBuffer = ArrayBuffer::New(isolate, (void *) message.data(), message.length());
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PerSocketData *perSocketData = (PerSocketData *) ws->getUserData();
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Local<Value> argv[3] = {Local<Object>::New(isolate, *(perSocketData->socketPf)),
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messageArrayBuffer,
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Boolean::New(isolate, opCode == uWS::OpCode::BINARY)};
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Local<Function>::New(isolate, messagePf)->Call(isolate->GetCurrentContext()->Global(), 3, argv);
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/* Important: we clear the ArrayBuffer to make sure it is not invalidly used after return */
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messageArrayBuffer->Neuter();
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};
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behavior.drain = [drainPf = std::move(drainPf)](auto *ws) {
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HandleScope hs(isolate);
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PerSocketData *perSocketData = (PerSocketData *) ws->getUserData();
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Local<Value> argv[1] = {Local<Object>::New(isolate, *(perSocketData->socketPf))
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};
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Local<Function>::New(isolate, drainPf)->Call(isolate->GetCurrentContext()->Global(), 1, argv);
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};
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behavior.ping = [](auto *ws) {
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};
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behavior.pong = [](auto *ws) {
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};
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behavior.close = [closePf = std::move(closePf)](auto *ws, int code, std::string_view message) {
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HandleScope hs(isolate);
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Local<ArrayBuffer> messageArrayBuffer = ArrayBuffer::New(isolate, (void *) message.data(), message.length());
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PerSocketData *perSocketData = (PerSocketData *) ws->getUserData();
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Local<Object> wsObject = Local<Object>::New(isolate, *(perSocketData->socketPf));
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Local<Value> argv[3] = {wsObject,
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Integer::New(isolate, code),
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messageArrayBuffer};
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/* Invalidate this wsObject */
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wsObject->SetAlignedPointerInInternalField(0, nullptr);
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Local<Function>::New(isolate, closePf)->Call(isolate->GetCurrentContext()->Global(), 3, argv);
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delete perSocketData->socketPf;
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/* Again, here we clear the buffer to avoid strange bugs */
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messageArrayBuffer->Neuter();
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};
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app->template ws<PerSocketData>(std::string(pattern.getString()), std::move(behavior));
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/* Return this */
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args.GetReturnValue().Set(args.Holder());
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}
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/* This method wraps get, post and all http methods */
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template <typename APP, typename F>
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void uWS_App_get(F f, const FunctionCallbackInfo<Value> &args) {
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APP *app = (APP *) args.Holder()->GetAlignedPointerFromInternalField(0);
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NativeString pattern(args.GetIsolate(), args[0]);
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if (pattern.isInvalid(args)) {
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return;
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}
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/* todo: make it UniquePersistent */
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std::shared_ptr<Persistent<Function>> pf(new Persistent<Function>);
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pf->Reset(args.GetIsolate(), Local<Function>::Cast(args[1]));
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(app->*f)(std::string(pattern.getString()), [pf](auto *res, auto *req) {
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HandleScope hs(isolate);
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Local<Object> resObject = HttpResponseWrapper::getResInstance<APP>();
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resObject->SetAlignedPointerInInternalField(0, res);
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Local<Object> reqObject = HttpRequestWrapper::getReqInstance();
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reqObject->SetAlignedPointerInInternalField(0, req);
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Local<Value> argv[] = {resObject, reqObject};
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Local<Function>::New(isolate, *pf)->Call(isolate->GetCurrentContext()->Global(), 2, argv);
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/* Properly invalidate req */
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reqObject->SetAlignedPointerInInternalField(0, nullptr);
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/* µWS itself will terminate if not responded and not attached
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* onAborted handler, so we can assume it's done */
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});
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args.GetReturnValue().Set(args.Holder());
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}
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template <typename APP>
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void uWS_App_listen(const FunctionCallbackInfo<Value> &args) {
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APP *app = (APP *) args.Holder()->GetAlignedPointerFromInternalField(0);
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/* Invalid use */
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if (args.Length() != 2 && args.Length() != 3) {
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/* Throw here */
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args.GetReturnValue().Set(isolate->ThrowException(String::NewFromUtf8(isolate, "App.listen takes 2 or 3 arguments")));
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return;
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}
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auto cb = [&args](auto *token) {
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/* Return a false boolean if listen failed */
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Local<Value> argv[] = {token ? Local<Value>::Cast(External::New(isolate, token)) : Local<Value>::Cast(Boolean::New(isolate, false))};
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Local<Function>::Cast(args[1])->Call(isolate->GetCurrentContext()->Global(), 1, argv);
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};
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if (args.Length() == 2) {
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/* Port, callback */
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int port = args[0]->Uint32Value(args.GetIsolate()->GetCurrentContext()).ToChecked();
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app->listen(port, std::move(cb));
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} else {
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/* Host, port, callback */
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NativeString host(isolate, args[0]);
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int port = args[1]->Uint32Value(args.GetIsolate()->GetCurrentContext()).ToChecked();
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app->listen(std::string(host.getString().data(), host.getString().length()), port, std::move(cb));
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}
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args.GetReturnValue().Set(args.Holder());
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}
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/* Mostly indended for debugging memory leaks */
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template <typename APP>
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void uWS_App_forcefully_free(const FunctionCallbackInfo<Value> &args) {
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APP *app = (APP *) args.Holder()->GetAlignedPointerFromInternalField(0);
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delete app;
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}
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template <typename APP>
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void uWS_App(const FunctionCallbackInfo<Value> &args) {
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Local<FunctionTemplate> appTemplate = FunctionTemplate::New(isolate);
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APP *app;
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/* Name differs based on type */
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if (std::is_same<APP, uWS::SSLApp>::value) {
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appTemplate->SetClassName(String::NewFromUtf8(isolate, "uWS.SSLApp"));
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/* We fill these below */
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us_new_socket_context_options_t ssl_options = {};
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static std::string keyFileName;
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static std::string certFileName;
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static std::string passphrase;
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static std::string dhParamsFileName;
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/* Read the options object (SSL options) */
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if (args.Length() == 1) {
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/* Key file name */
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NativeString keyFileNameValue(isolate, Local<Object>::Cast(args[0])->Get(String::NewFromUtf8(isolate, "key_file_name")));
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if (keyFileNameValue.isInvalid(args)) {
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return;
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}
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if (keyFileNameValue.getString().length()) {
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keyFileName.append(keyFileNameValue.getString());
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ssl_options.key_file_name = keyFileName.c_str();
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}
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/* Cert file name */
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NativeString certFileNameValue(isolate, Local<Object>::Cast(args[0])->Get(String::NewFromUtf8(isolate, "cert_file_name")));
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if (certFileNameValue.isInvalid(args)) {
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return;
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}
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if (certFileNameValue.getString().length()) {
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certFileName.append(certFileNameValue.getString());
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ssl_options.cert_file_name = certFileName.c_str();
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}
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/* Passphrase */
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NativeString passphraseValue(isolate, Local<Object>::Cast(args[0])->Get(String::NewFromUtf8(isolate, "passphrase")));
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if (passphraseValue.isInvalid(args)) {
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return;
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}
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if (passphraseValue.getString().length()) {
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passphrase.append(passphraseValue.getString());
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ssl_options.passphrase = passphrase.c_str();
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}
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/* DH params file name */
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NativeString dhParamsFileNameValue(isolate, Local<Object>::Cast(args[0])->Get(String::NewFromUtf8(isolate, "dh_params_file_name")));
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if (dhParamsFileNameValue.isInvalid(args)) {
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return;
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}
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if (dhParamsFileNameValue.getString().length()) {
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dhParamsFileName.append(dhParamsFileNameValue.getString());
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ssl_options.dh_params_file_name = dhParamsFileName.c_str();
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}
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}
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app = new APP(ssl_options);
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} else {
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appTemplate->SetClassName(String::NewFromUtf8(isolate, "uWS.App"));
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app = new APP;
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}
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appTemplate->InstanceTemplate()->SetInternalFieldCount(1);
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/* All the http methods */
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appTemplate->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "get"), FunctionTemplate::New(isolate, [](auto &args) {
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uWS_App_get<APP>(&APP::get, args);
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}));
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appTemplate->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "post"), FunctionTemplate::New(isolate, [](auto &args) {
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uWS_App_get<APP>(&APP::post, args);
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}));
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appTemplate->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "options"), FunctionTemplate::New(isolate, [](auto &args) {
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uWS_App_get<APP>(&APP::options, args);
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}));
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appTemplate->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "del"), FunctionTemplate::New(isolate, [](auto &args) {
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uWS_App_get<APP>(&APP::del, args);
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}));
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appTemplate->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "patch"), FunctionTemplate::New(isolate, [](auto &args) {
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uWS_App_get<APP>(&APP::patch, args);
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}));
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appTemplate->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "put"), FunctionTemplate::New(isolate, [](auto &args) {
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uWS_App_get<APP>(&APP::put, args);
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}));
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appTemplate->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "head"), FunctionTemplate::New(isolate, [](auto &args) {
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uWS_App_get<APP>(&APP::head, args);
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}));
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appTemplate->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "connect"), FunctionTemplate::New(isolate, [](auto &args) {
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uWS_App_get<APP>(&APP::connect, args);
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}));
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appTemplate->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "trace"), FunctionTemplate::New(isolate, [](auto &args) {
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uWS_App_get<APP>(&APP::trace, args);
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}));
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/* Any http method */
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appTemplate->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "any"), FunctionTemplate::New(isolate, [](auto &args) {
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uWS_App_get<APP>(&APP::any, args);
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}));
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/* ws, listen */
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appTemplate->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "ws"), FunctionTemplate::New(isolate, uWS_App_ws<APP>));
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appTemplate->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "listen"), FunctionTemplate::New(isolate, uWS_App_listen<APP>));
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/* forcefully_free is unsafe for end-users to use, but nice to track memory leaks with ASAN */
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appTemplate->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "forcefully_free"), FunctionTemplate::New(isolate, uWS_App_forcefully_free<APP>));
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Local<Object> localApp = appTemplate->GetFunction()->NewInstance(isolate->GetCurrentContext()).ToLocalChecked();
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localApp->SetAlignedPointerInInternalField(0, app);
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args.GetReturnValue().Set(localApp);
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}
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