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408 lines
12 KiB
408 lines
12 KiB
#include "tcp_wrap.h"
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#include "env.h"
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#include "env-inl.h"
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#include "handle_wrap.h"
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#include "node_buffer.h"
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#include "node_wrap.h"
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#include "req-wrap.h"
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#include "req-wrap-inl.h"
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#include "stream_wrap.h"
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#include "util.h"
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#include "util-inl.h"
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#include <stdlib.h>
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namespace node {
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using v8::Boolean;
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using v8::Context;
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using v8::EscapableHandleScope;
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using v8::External;
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using v8::Function;
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using v8::FunctionCallbackInfo;
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using v8::FunctionTemplate;
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using v8::HandleScope;
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using v8::Integer;
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using v8::Local;
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using v8::Object;
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using v8::String;
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using v8::Undefined;
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using v8::Value;
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class TCPConnectWrap : public ReqWrap<uv_connect_t> {
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public:
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TCPConnectWrap(Environment* env, Local<Object> req_wrap_obj);
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size_t self_size() const override { return sizeof(*this); }
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};
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TCPConnectWrap::TCPConnectWrap(Environment* env, Local<Object> req_wrap_obj)
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: ReqWrap(env, req_wrap_obj, AsyncWrap::PROVIDER_TCPCONNECTWRAP) {
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Wrap(req_wrap_obj, this);
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}
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static void NewTCPConnectWrap(const FunctionCallbackInfo<Value>& args) {
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CHECK(args.IsConstructCall());
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}
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Local<Object> TCPWrap::Instantiate(Environment* env, AsyncWrap* parent) {
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EscapableHandleScope handle_scope(env->isolate());
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CHECK_EQ(env->tcp_constructor_template().IsEmpty(), false);
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Local<Function> constructor = env->tcp_constructor_template()->GetFunction();
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CHECK_EQ(constructor.IsEmpty(), false);
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Local<Value> ptr = External::New(env->isolate(), parent);
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Local<Object> instance =
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constructor->NewInstance(env->context(), 1, &ptr).ToLocalChecked();
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return handle_scope.Escape(instance);
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}
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void TCPWrap::Initialize(Local<Object> target,
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Local<Value> unused,
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Local<Context> context) {
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Environment* env = Environment::GetCurrent(context);
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Local<FunctionTemplate> t = env->NewFunctionTemplate(New);
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t->SetClassName(FIXED_ONE_BYTE_STRING(env->isolate(), "TCP"));
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t->InstanceTemplate()->SetInternalFieldCount(1);
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// Init properties
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t->InstanceTemplate()->Set(String::NewFromUtf8(env->isolate(), "reading"),
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Boolean::New(env->isolate(), false));
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t->InstanceTemplate()->Set(String::NewFromUtf8(env->isolate(), "owner"),
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Null(env->isolate()));
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t->InstanceTemplate()->Set(String::NewFromUtf8(env->isolate(), "onread"),
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Null(env->isolate()));
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t->InstanceTemplate()->Set(String::NewFromUtf8(env->isolate(),
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"onconnection"),
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Null(env->isolate()));
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env->SetProtoMethod(t, "close", HandleWrap::Close);
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env->SetProtoMethod(t, "ref", HandleWrap::Ref);
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env->SetProtoMethod(t, "unref", HandleWrap::Unref);
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env->SetProtoMethod(t, "unrefed", HandleWrap::Unrefed);
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StreamWrap::AddMethods(env, t, StreamBase::kFlagHasWritev);
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env->SetProtoMethod(t, "open", Open);
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env->SetProtoMethod(t, "bind", Bind);
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env->SetProtoMethod(t, "listen", Listen);
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env->SetProtoMethod(t, "connect", Connect);
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env->SetProtoMethod(t, "bind6", Bind6);
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env->SetProtoMethod(t, "connect6", Connect6);
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env->SetProtoMethod(t, "getsockname",
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GetSockOrPeerName<TCPWrap, uv_tcp_getsockname>);
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env->SetProtoMethod(t, "getpeername",
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GetSockOrPeerName<TCPWrap, uv_tcp_getpeername>);
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env->SetProtoMethod(t, "setNoDelay", SetNoDelay);
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env->SetProtoMethod(t, "setKeepAlive", SetKeepAlive);
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#ifdef _WIN32
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env->SetProtoMethod(t, "setSimultaneousAccepts", SetSimultaneousAccepts);
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#endif
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target->Set(FIXED_ONE_BYTE_STRING(env->isolate(), "TCP"), t->GetFunction());
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env->set_tcp_constructor_template(t);
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// Create FunctionTemplate for TCPConnectWrap.
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Local<FunctionTemplate> cwt =
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FunctionTemplate::New(env->isolate(), NewTCPConnectWrap);
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cwt->InstanceTemplate()->SetInternalFieldCount(1);
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cwt->SetClassName(FIXED_ONE_BYTE_STRING(env->isolate(), "TCPConnectWrap"));
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target->Set(FIXED_ONE_BYTE_STRING(env->isolate(), "TCPConnectWrap"),
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cwt->GetFunction());
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}
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uv_tcp_t* TCPWrap::UVHandle() {
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return &handle_;
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}
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void TCPWrap::New(const FunctionCallbackInfo<Value>& args) {
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// This constructor should not be exposed to public javascript.
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// Therefore we assert that we are not trying to call this as a
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// normal function.
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CHECK(args.IsConstructCall());
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Environment* env = Environment::GetCurrent(args);
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TCPWrap* wrap;
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if (args.Length() == 0) {
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wrap = new TCPWrap(env, args.This(), nullptr);
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} else if (args[0]->IsExternal()) {
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void* ptr = args[0].As<External>()->Value();
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wrap = new TCPWrap(env, args.This(), static_cast<AsyncWrap*>(ptr));
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} else {
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UNREACHABLE();
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}
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CHECK(wrap);
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}
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TCPWrap::TCPWrap(Environment* env, Local<Object> object, AsyncWrap* parent)
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: StreamWrap(env,
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object,
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reinterpret_cast<uv_stream_t*>(&handle_),
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AsyncWrap::PROVIDER_TCPWRAP,
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parent) {
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int r = uv_tcp_init(env->event_loop(), &handle_);
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CHECK_EQ(r, 0); // How do we proxy this error up to javascript?
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// Suggestion: uv_tcp_init() returns void.
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UpdateWriteQueueSize();
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}
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TCPWrap::~TCPWrap() {
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CHECK(persistent().IsEmpty());
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}
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void TCPWrap::SetNoDelay(const FunctionCallbackInfo<Value>& args) {
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TCPWrap* wrap = Unwrap<TCPWrap>(args.Holder());
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int enable = static_cast<int>(args[0]->BooleanValue());
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int err = uv_tcp_nodelay(&wrap->handle_, enable);
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args.GetReturnValue().Set(err);
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}
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void TCPWrap::SetKeepAlive(const FunctionCallbackInfo<Value>& args) {
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TCPWrap* wrap = Unwrap<TCPWrap>(args.Holder());
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int enable = args[0]->Int32Value();
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unsigned int delay = args[1]->Uint32Value();
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int err = uv_tcp_keepalive(&wrap->handle_, enable, delay);
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args.GetReturnValue().Set(err);
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}
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#ifdef _WIN32
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void TCPWrap::SetSimultaneousAccepts(const FunctionCallbackInfo<Value>& args) {
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TCPWrap* wrap = Unwrap<TCPWrap>(args.Holder());
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bool enable = args[0]->BooleanValue();
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int err = uv_tcp_simultaneous_accepts(&wrap->handle_, enable);
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args.GetReturnValue().Set(err);
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}
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#endif
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void TCPWrap::Open(const FunctionCallbackInfo<Value>& args) {
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TCPWrap* wrap = Unwrap<TCPWrap>(args.Holder());
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int fd = static_cast<int>(args[0]->IntegerValue());
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uv_tcp_open(&wrap->handle_, fd);
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}
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void TCPWrap::Bind(const FunctionCallbackInfo<Value>& args) {
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TCPWrap* wrap = Unwrap<TCPWrap>(args.Holder());
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node::Utf8Value ip_address(args.GetIsolate(), args[0]);
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int port = args[1]->Int32Value();
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sockaddr_in addr;
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int err = uv_ip4_addr(*ip_address, port, &addr);
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if (err == 0) {
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err = uv_tcp_bind(&wrap->handle_,
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reinterpret_cast<const sockaddr*>(&addr),
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0);
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}
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args.GetReturnValue().Set(err);
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}
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void TCPWrap::Bind6(const FunctionCallbackInfo<Value>& args) {
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TCPWrap* wrap = Unwrap<TCPWrap>(args.Holder());
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node::Utf8Value ip6_address(args.GetIsolate(), args[0]);
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int port = args[1]->Int32Value();
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sockaddr_in6 addr;
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int err = uv_ip6_addr(*ip6_address, port, &addr);
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if (err == 0) {
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err = uv_tcp_bind(&wrap->handle_,
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reinterpret_cast<const sockaddr*>(&addr),
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0);
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}
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args.GetReturnValue().Set(err);
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}
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void TCPWrap::Listen(const FunctionCallbackInfo<Value>& args) {
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TCPWrap* wrap = Unwrap<TCPWrap>(args.Holder());
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int backlog = args[0]->Int32Value();
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int err = uv_listen(reinterpret_cast<uv_stream_t*>(&wrap->handle_),
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backlog,
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OnConnection);
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args.GetReturnValue().Set(err);
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}
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void TCPWrap::OnConnection(uv_stream_t* handle, int status) {
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TCPWrap* tcp_wrap = static_cast<TCPWrap*>(handle->data);
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CHECK_EQ(&tcp_wrap->handle_, reinterpret_cast<uv_tcp_t*>(handle));
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Environment* env = tcp_wrap->env();
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HandleScope handle_scope(env->isolate());
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Context::Scope context_scope(env->context());
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// We should not be getting this callback if someone as already called
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// uv_close() on the handle.
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CHECK_EQ(tcp_wrap->persistent().IsEmpty(), false);
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Local<Value> argv[2] = {
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Integer::New(env->isolate(), status),
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Undefined(env->isolate())
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};
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if (status == 0) {
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// Instantiate the client javascript object and handle.
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Local<Object> client_obj =
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Instantiate(env, static_cast<AsyncWrap*>(tcp_wrap));
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// Unwrap the client javascript object.
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TCPWrap* wrap = Unwrap<TCPWrap>(client_obj);
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uv_stream_t* client_handle = reinterpret_cast<uv_stream_t*>(&wrap->handle_);
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if (uv_accept(handle, client_handle))
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return;
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// Successful accept. Call the onconnection callback in JavaScript land.
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argv[1] = client_obj;
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}
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tcp_wrap->MakeCallback(env->onconnection_string(), arraysize(argv), argv);
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}
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void TCPWrap::AfterConnect(uv_connect_t* req, int status) {
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TCPConnectWrap* req_wrap = static_cast<TCPConnectWrap*>(req->data);
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TCPWrap* wrap = static_cast<TCPWrap*>(req->handle->data);
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CHECK_EQ(req_wrap->env(), wrap->env());
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Environment* env = wrap->env();
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HandleScope handle_scope(env->isolate());
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Context::Scope context_scope(env->context());
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// The wrap and request objects should still be there.
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CHECK_EQ(req_wrap->persistent().IsEmpty(), false);
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CHECK_EQ(wrap->persistent().IsEmpty(), false);
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Local<Object> req_wrap_obj = req_wrap->object();
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Local<Value> argv[5] = {
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Integer::New(env->isolate(), status),
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wrap->object(),
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req_wrap_obj,
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v8::True(env->isolate()),
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v8::True(env->isolate())
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};
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req_wrap->MakeCallback(env->oncomplete_string(), arraysize(argv), argv);
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delete req_wrap;
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}
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void TCPWrap::Connect(const FunctionCallbackInfo<Value>& args) {
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Environment* env = Environment::GetCurrent(args);
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TCPWrap* wrap = Unwrap<TCPWrap>(args.Holder());
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CHECK(args[0]->IsObject());
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CHECK(args[1]->IsString());
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CHECK(args[2]->IsUint32());
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Local<Object> req_wrap_obj = args[0].As<Object>();
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node::Utf8Value ip_address(env->isolate(), args[1]);
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int port = args[2]->Uint32Value();
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sockaddr_in addr;
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int err = uv_ip4_addr(*ip_address, port, &addr);
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if (err == 0) {
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TCPConnectWrap* req_wrap = new TCPConnectWrap(env, req_wrap_obj);
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err = uv_tcp_connect(&req_wrap->req_,
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&wrap->handle_,
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reinterpret_cast<const sockaddr*>(&addr),
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AfterConnect);
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req_wrap->Dispatched();
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if (err)
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delete req_wrap;
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}
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args.GetReturnValue().Set(err);
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}
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void TCPWrap::Connect6(const FunctionCallbackInfo<Value>& args) {
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Environment* env = Environment::GetCurrent(args);
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TCPWrap* wrap = Unwrap<TCPWrap>(args.Holder());
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CHECK(args[0]->IsObject());
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CHECK(args[1]->IsString());
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CHECK(args[2]->IsUint32());
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Local<Object> req_wrap_obj = args[0].As<Object>();
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node::Utf8Value ip_address(env->isolate(), args[1]);
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int port = args[2]->Int32Value();
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sockaddr_in6 addr;
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int err = uv_ip6_addr(*ip_address, port, &addr);
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if (err == 0) {
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TCPConnectWrap* req_wrap = new TCPConnectWrap(env, req_wrap_obj);
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err = uv_tcp_connect(&req_wrap->req_,
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&wrap->handle_,
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reinterpret_cast<const sockaddr*>(&addr),
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AfterConnect);
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req_wrap->Dispatched();
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if (err)
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delete req_wrap;
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}
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args.GetReturnValue().Set(err);
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}
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// also used by udp_wrap.cc
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Local<Object> AddressToJS(Environment* env,
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const sockaddr* addr,
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Local<Object> info) {
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EscapableHandleScope scope(env->isolate());
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char ip[INET6_ADDRSTRLEN];
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const sockaddr_in *a4;
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const sockaddr_in6 *a6;
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int port;
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if (info.IsEmpty())
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info = Object::New(env->isolate());
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switch (addr->sa_family) {
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case AF_INET6:
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a6 = reinterpret_cast<const sockaddr_in6*>(addr);
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uv_inet_ntop(AF_INET6, &a6->sin6_addr, ip, sizeof ip);
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port = ntohs(a6->sin6_port);
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info->Set(env->address_string(), OneByteString(env->isolate(), ip));
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info->Set(env->family_string(), env->ipv6_string());
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info->Set(env->port_string(), Integer::New(env->isolate(), port));
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break;
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case AF_INET:
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a4 = reinterpret_cast<const sockaddr_in*>(addr);
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uv_inet_ntop(AF_INET, &a4->sin_addr, ip, sizeof ip);
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port = ntohs(a4->sin_port);
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info->Set(env->address_string(), OneByteString(env->isolate(), ip));
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info->Set(env->family_string(), env->ipv4_string());
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info->Set(env->port_string(), Integer::New(env->isolate(), port));
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break;
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default:
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info->Set(env->address_string(), String::Empty(env->isolate()));
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}
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return scope.Escape(info);
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}
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} // namespace node
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NODE_MODULE_CONTEXT_AWARE_BUILTIN(tcp_wrap, node::TCPWrap::Initialize)
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