268 lines
11 KiB
C++
268 lines
11 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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struct HttpResponseWrapper {
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static Persistent<Object> resTemplate[2];
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template <bool SSL>
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static inline uWS::HttpResponse<SSL> *getHttpResponse(const FunctionCallbackInfo<Value> &args) {
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auto *res = (uWS::HttpResponse<SSL> *) args.Holder()->GetAlignedPointerFromInternalField(0);
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if (!res) {
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args.GetReturnValue().Set(isolate->ThrowException(String::NewFromUtf8(isolate, "Invalid access of discarded (invalid, deleted) uWS.HttpResponse/SSLHttpResponse.")));
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}
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return res;
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}
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/* Marks this JS object invalid */
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static inline void invalidateResObject(const FunctionCallbackInfo<Value> &args) {
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args.Holder()->SetAlignedPointerInInternalField(0, nullptr);
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}
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/* Takes nothing, kills the connection */
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template <bool SSL>
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static void res_close(const FunctionCallbackInfo<Value> &args) {
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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invalidateResObject(args);
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res->close();
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args.GetReturnValue().Set(args.Holder());
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}
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}
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/* Takes function of data and isLast. Expects nothing from callback, returns this */
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template <bool SSL>
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static void res_onData(const FunctionCallbackInfo<Value> &args) {
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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/* This thing perfectly fits in with unique_function, and will Reset on destructor */
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UniquePersistent<Function> p(isolate, Local<Function>::Cast(args[0]));
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res->onData([p = std::move(p)](std::string_view data, bool last) {
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HandleScope hs(isolate);
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Local<ArrayBuffer> dataArrayBuffer = ArrayBuffer::New(isolate, (void *) data.data(), data.length());
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Local<Value> argv[] = {dataArrayBuffer, Boolean::New(isolate, last)};
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Local<Function>::New(isolate, p)->Call(isolate->GetCurrentContext(), isolate->GetCurrentContext()->Global(), 2, argv);
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dataArrayBuffer->Neuter();
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});
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args.GetReturnValue().Set(args.Holder());
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}
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}
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/* Takes nothing, returns nothing. Cb wants nothing returned. */
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template <bool SSL>
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static void res_onAborted(const FunctionCallbackInfo<Value> &args) {
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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/* This thing perfectly fits in with unique_function, and will Reset on destructor */
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UniquePersistent<Function> p(isolate, Local<Function>::Cast(args[0]));
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/* This is how we capture res (C++ this in invocation of this function) */
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UniquePersistent<Object> resObject(isolate, args.Holder());
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res->onAborted([p = std::move(p), resObject = std::move(resObject)]() {
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HandleScope hs(isolate);
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/* Mark this resObject invalid */
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Local<Object>::New(isolate, resObject)->SetAlignedPointerInInternalField(0, nullptr);
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Local<Function>::New(isolate, p)->Call(isolate->GetCurrentContext(), isolate->GetCurrentContext()->Global(), 0, nullptr);
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});
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args.GetReturnValue().Set(args.Holder());
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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 res_getRemoteAddress(const FunctionCallbackInfo<Value> &args) {
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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std::string_view ip = res->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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/* Returns the current write offset */
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template <bool SSL>
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static void res_getWriteOffset(const FunctionCallbackInfo<Value> &args) {
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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args.GetReturnValue().Set(Integer::New(isolate, getHttpResponse<SSL>(args)->getWriteOffset()));
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}
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}
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/* Takes function of bool(int), returns this */
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template <bool SSL>
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static void res_onWritable(const FunctionCallbackInfo<Value> &args) {
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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/* This thing perfectly fits in with unique_function, and will Reset on destructor */
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UniquePersistent<Function> p(isolate, Local<Function>::Cast(args[0]));
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res->onWritable([p = std::move(p)](int offset) {
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HandleScope hs(isolate);
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Local<Value> argv[] = {Integer::NewFromUnsigned(isolate, offset)};
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return Local<Function>::New(isolate, p)->Call(isolate->GetCurrentContext(), isolate->GetCurrentContext()->Global(), 1, argv).ToLocalChecked()->BooleanValue(isolate->GetCurrentContext()).ToChecked();
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/* How important is this return? */
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});
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args.GetReturnValue().Set(args.Holder());
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}
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}
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/* Takes string or arraybuffer, returns this */
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template <bool SSL>
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static void res_writeStatus(const FunctionCallbackInfo<Value> &args) {
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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NativeString data(args.GetIsolate(), args[0]);
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if (data.isInvalid(args)) {
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return;
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}
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res->writeStatus(data.getString());
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args.GetReturnValue().Set(args.Holder());
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}
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}
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/* Takes string or arraybuffer, returns this */
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template <bool SSL>
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static void res_end(const FunctionCallbackInfo<Value> &args) {
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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NativeString data(args.GetIsolate(), args[0]);
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if (data.isInvalid(args)) {
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return;
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}
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invalidateResObject(args);
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res->end(data.getString());
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args.GetReturnValue().Set(args.Holder());
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}
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}
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/* Takes data and optionally totalLength, returns true for success, false for backpressure */
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template <bool SSL>
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static void res_tryEnd(const FunctionCallbackInfo<Value> &args) {
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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NativeString data(args.GetIsolate(), args[0]);
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if (data.isInvalid(args)) {
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return;
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}
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int totalSize = 0;
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if (args.Length() > 1) {
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totalSize = args[1]->Uint32Value(isolate->GetCurrentContext()).ToChecked();
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}
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auto [ok, hasResponded] = res->tryEnd(data.getString(), totalSize);
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/* Invalidate this object if we responded completely */
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if (hasResponded) {
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invalidateResObject(args);
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}
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/* This is a quick fix, it will need updating in µWS later on */
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Local<Array> array = Array::New(isolate, 2);
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array->Set(0, Boolean::New(isolate, ok));
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array->Set(1, Boolean::New(isolate, hasResponded));
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args.GetReturnValue().Set(array);
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}
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}
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/* Takes data, returns true for success, false for backpressure */
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template <bool SSL>
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static void res_write(const FunctionCallbackInfo<Value> &args) {
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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NativeString data(args.GetIsolate(), args[0]);
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if (data.isInvalid(args)) {
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return;
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}
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bool ok = res->write(data.getString());
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args.GetReturnValue().Set(Boolean::New(isolate, ok));
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}
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}
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/* Takes key, value. Returns this */
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template <bool SSL>
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static void res_writeHeader(const FunctionCallbackInfo<Value> &args) {
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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NativeString header(args.GetIsolate(), args[0]);
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if (header.isInvalid(args)) {
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return;
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}
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NativeString value(args.GetIsolate(), args[1]);
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if (value.isInvalid(args)) {
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return;
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}
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res->writeHeader(header.getString(),value.getString());
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args.GetReturnValue().Set(args.Holder());
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}
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}
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/* Takes function, returns this (EXPERIMENTAL) */
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template <bool SSL>
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static void res_cork(const FunctionCallbackInfo<Value> &args) {
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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res->cork([cb = Local<Function>::Cast(args[0])]() {
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cb->Call(isolate->GetCurrentContext(), isolate->GetCurrentContext()->Global(), 0, nullptr);
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});
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args.GetReturnValue().Set(args.Holder());
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}
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}
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template <bool SSL>
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static void initResTemplate() {
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Local<FunctionTemplate> resTemplateLocal = FunctionTemplate::New(isolate);
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if (SSL) {
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resTemplateLocal->SetClassName(String::NewFromUtf8(isolate, "uWS.SSLHttpResponse"));
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} else {
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resTemplateLocal->SetClassName(String::NewFromUtf8(isolate, "uWS.HttpResponse"));
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}
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resTemplateLocal->InstanceTemplate()->SetInternalFieldCount(1);
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/* Register our functions */
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "writeStatus"), FunctionTemplate::New(isolate, res_writeStatus<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "end"), FunctionTemplate::New(isolate, res_end<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "tryEnd"), FunctionTemplate::New(isolate, res_tryEnd<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "write"), FunctionTemplate::New(isolate, res_write<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "writeHeader"), FunctionTemplate::New(isolate, res_writeHeader<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "close"), FunctionTemplate::New(isolate, res_close<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getWriteOffset"), FunctionTemplate::New(isolate, res_getWriteOffset<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "onWritable"), FunctionTemplate::New(isolate, res_onWritable<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "onAborted"), FunctionTemplate::New(isolate, res_onAborted<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "onData"), FunctionTemplate::New(isolate, res_onData<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getRemoteAddress"), FunctionTemplate::New(isolate, res_getRemoteAddress<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "experimental_cork"), FunctionTemplate::New(isolate, res_cork<SSL>));
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/* Create our template */
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Local<Object> resObjectLocal = resTemplateLocal->GetFunction(isolate->GetCurrentContext()).ToLocalChecked()->NewInstance(isolate->GetCurrentContext()).ToLocalChecked();
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resTemplate[SSL].Reset(isolate, resObjectLocal);
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}
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template <class APP>
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static Local<Object> getResInstance() {
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return Local<Object>::New(isolate, resTemplate[std::is_same<APP, uWS::SSLApp>::value])->Clone();
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}
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};
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Persistent<Object> HttpResponseWrapper::resTemplate[2];
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