385 lines
17 KiB
C++
385 lines
17 KiB
C++
/*
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* Authored by Alex Hultman, 2018-2020.
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* Intellectual property of third-party.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "App.h"
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#include "Utilities.h"
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#include <v8.h>
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using namespace v8;
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struct HttpResponseWrapper {
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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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Isolate *isolate = args.GetIsolate();
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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.", NewStringType::kNormal).ToLocalChecked()));
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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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Isolate *isolate = args.GetIsolate();
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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), isolate](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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CallJS(isolate, Local<Function>::New(isolate, p), 2, argv);
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NeuterArrayBuffer(dataArrayBuffer);
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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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Isolate *isolate = args.GetIsolate();
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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), isolate]() {
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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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CallJS(isolate, Local<Function>::New(isolate, p), 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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Isolate *isolate = args.GetIsolate();
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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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/* Takes nothing, returns arraybuffer */
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template <bool SSL>
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static void res_getRemoteAddressAsText(const FunctionCallbackInfo<Value> &args) {
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Isolate *isolate = args.GetIsolate();
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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std::string_view ip = res->getRemoteAddressAsText();
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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 arraybuffer */
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template <bool SSL>
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static void res_getProxiedRemoteAddress(const FunctionCallbackInfo<Value> &args) {
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Isolate *isolate = args.GetIsolate();
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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std::string_view ip = res->getProxiedRemoteAddress();
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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 arraybuffer */
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template <bool SSL>
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static void res_getProxiedRemoteAddressAsText(const FunctionCallbackInfo<Value> &args) {
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Isolate *isolate = args.GetIsolate();
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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std::string_view ip = res->getProxiedRemoteAddressAsText();
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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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Isolate *isolate = args.GetIsolate();
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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args.GetReturnValue().Set(Number::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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Isolate *isolate = args.GetIsolate();
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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), isolate](size_t offset) -> bool {
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HandleScope hs(isolate);
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Local<Value> argv[] = {Number::New(isolate, offset)};
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/* We should check if this is really here! */
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MaybeLocal<Value> maybeBoolean = CallJS(isolate, Local<Function>::New(isolate, p), 1, argv);
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if (maybeBoolean.IsEmpty()) {
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std::cerr << "ERROR! onWritable must return a boolean value according to documentation!" << std::endl;
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exit(-1);
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}
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return BooleanValue(isolate, maybeBoolean.ToLocalChecked());
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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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Isolate *isolate = args.GetIsolate();
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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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size_t totalSize = 0;
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if (args.Length() > 1) {
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totalSize = (size_t) args[1]->NumberValue(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(isolate->GetCurrentContext(), 0, Boolean::New(isolate, ok)).ToChecked();
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array->Set(isolate->GetCurrentContext(), 1, Boolean::New(isolate, hasResponded)).ToChecked();
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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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Isolate *isolate = args.GetIsolate();
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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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Isolate *isolate = args.GetIsolate();
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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 */
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template <bool SSL>
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static void res_cork(const FunctionCallbackInfo<Value> &args) {
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Isolate *isolate = args.GetIsolate();
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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]), isolate]() {
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/* This one is called from JS so we don't need CallJS */
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cb->Call(isolate->GetCurrentContext(), isolate->GetCurrentContext()->Global(), 0, nullptr).IsEmpty();
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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 UserData, secKey, secProtocol, secExtensions, context. Returns nothing */
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template <bool SSL>
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static void res_upgrade(const FunctionCallbackInfo<Value> &args) {
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Isolate *isolate = args.GetIsolate();
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auto *res = getHttpResponse<SSL>(args);
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if (res) {
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/* We require exactly 5 arguments */
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if (args.Length() != 5) {
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return;
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}
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NativeString secWebSocketKey(args.GetIsolate(), args[1]);
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if (secWebSocketKey.isInvalid(args)) {
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return;
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}
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NativeString secWebSocketProtocol(args.GetIsolate(), args[2]);
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if (secWebSocketProtocol.isInvalid(args)) {
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return;
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}
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NativeString secWebSocketExtensions(args.GetIsolate(), args[3]);
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if (secWebSocketExtensions.isInvalid(args)) {
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return;
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}
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auto *context = (struct us_socket_context_t *) Local<External>::Cast(args[4])->Value();
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invalidateResObject(args);
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/* This releases on return */
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UniquePersistent<Object> userData;
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userData.Reset(isolate, Local<Object>::Cast(args[0]));
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/* Immediately calls open handler */
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res->template upgrade<PerSocketData>({
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std::move(userData)
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}, secWebSocketKey.getString(), secWebSocketProtocol.getString(),
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secWebSocketExtensions.getString(), context);
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/* Nothing is returned */
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}
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}
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template <bool SSL>
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static Local<Object> init(Isolate *isolate) {
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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", NewStringType::kNormal).ToLocalChecked());
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} else {
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resTemplateLocal->SetClassName(String::NewFromUtf8(isolate, "uWS.HttpResponse", NewStringType::kNormal).ToLocalChecked());
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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", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, res_writeStatus<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "end", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, res_end<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "tryEnd", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, res_tryEnd<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "write", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, res_write<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "writeHeader", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, res_writeHeader<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "close", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, res_close<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getWriteOffset", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, res_getWriteOffset<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "onWritable", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, res_onWritable<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "onAborted", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, res_onAborted<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "onData", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, res_onData<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getRemoteAddress", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, res_getRemoteAddress<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "cork", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, res_cork<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "upgrade", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, res_upgrade<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getRemoteAddressAsText", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, res_getRemoteAddressAsText<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getProxiedRemoteAddress", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, res_getProxiedRemoteAddress<SSL>));
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resTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getProxiedRemoteAddressAsText", NewStringType::kNormal).ToLocalChecked(), FunctionTemplate::New(isolate, res_getProxiedRemoteAddressAsText<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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return resObjectLocal;
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}
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};
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