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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <algorithm>
#include "TCPSocketChild.h"
#include "mozilla/HoldDropJSObjects.h"
#include "mozilla/Unused.h"
#include "mozilla/UniquePtr.h"
#include "mozilla/net/NeckoChild.h"
#include "mozilla/dom/PBrowserChild.h"
#include "mozilla/dom/BrowserChild.h"
#include "nsITCPSocketCallback.h"
#include "TCPSocket.h"
#include "nsContentUtils.h"
#include "js/ArrayBuffer.h" // JS::NewArrayBufferWithContents
#include "js/RootingAPI.h" // JS::MutableHandle
#include "js/Utility.h" // js::ArrayBufferContentsArena, JS::FreePolicy, js_pod_arena_malloc
#include "js/Value.h" // JS::Value
using mozilla::net::gNeckoChild;
namespace IPC {
bool DeserializeArrayBuffer(JSContext* cx, const nsTArray<uint8_t>& aBuffer,
JS::MutableHandle<JS::Value> aVal) {
mozilla::UniquePtr<uint8_t[], JS::FreePolicy> data(
js_pod_arena_malloc<uint8_t>(js::ArrayBufferContentsArena,
aBuffer.Length()));
if (!data) return false;
memcpy(data.get(), aBuffer.Elements(), aBuffer.Length());
JSObject* obj =
JS::NewArrayBufferWithContents(cx, aBuffer.Length(), data.get());
if (!obj) return false;
// If JS::NewArrayBufferWithContents returns non-null, the ownership of
// the data is transfered to obj, so we release the ownership here.
mozilla::Unused << data.release();
aVal.setObject(*obj);
return true;
}
} // namespace IPC
namespace mozilla::dom {
NS_IMPL_CYCLE_COLLECTION_CLASS(TCPSocketChildBase)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(TCPSocketChildBase)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSocket)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(TCPSocketChildBase)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSocket)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(TCPSocketChildBase)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(TCPSocketChildBase)
NS_IMPL_CYCLE_COLLECTING_RELEASE(TCPSocketChildBase)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(TCPSocketChildBase)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
TCPSocketChildBase::TCPSocketChildBase() : mIPCOpen(false) {
mozilla::HoldJSObjects(this);
}
TCPSocketChildBase::~TCPSocketChildBase() { mozilla::DropJSObjects(this); }
NS_IMETHODIMP_(MozExternalRefCountType) TCPSocketChild::Release(void) {
nsrefcnt refcnt = TCPSocketChildBase::Release();
if (refcnt == 1 && mIPCOpen) {
PTCPSocketChild::SendRequestDelete();
return 1;
}
return refcnt;
}
TCPSocketChild::TCPSocketChild(const nsAString& aHost, const uint16_t& aPort,
nsISerialEventTarget* aTarget)
: mHost(aHost), mPort(aPort), mIPCEventTarget(aTarget) {}
void TCPSocketChild::SendOpen(nsITCPSocketCallback* aSocket, bool aUseSSL,
bool aUseArrayBuffers) {
mSocket = aSocket;
if (mIPCEventTarget) {
gNeckoChild->SetEventTargetForActor(this, mIPCEventTarget);
}
AddIPDLReference();
gNeckoChild->SendPTCPSocketConstructor(this, mHost, mPort);
PTCPSocketChild::SendOpen(mHost, mPort, aUseSSL, aUseArrayBuffers);
}
void TCPSocketChildBase::ReleaseIPDLReference() {
MOZ_ASSERT(mIPCOpen);
mIPCOpen = false;
mSocket = nullptr;
this->Release();
}
void TCPSocketChildBase::AddIPDLReference() {
MOZ_ASSERT(!mIPCOpen);
mIPCOpen = true;
this->AddRef();
}
TCPSocketChild::~TCPSocketChild() = default;
mozilla::ipc::IPCResult TCPSocketChild::RecvUpdateBufferedAmount(
const uint32_t& aBuffered, const uint32_t& aTrackingNumber) {
mSocket->UpdateBufferedAmount(aBuffered, aTrackingNumber);
return IPC_OK();
}
mozilla::ipc::IPCResult TCPSocketChild::RecvCallback(
const nsString& aType, const CallbackData& aData,
const uint32_t& aReadyState) {
mSocket->UpdateReadyState(aReadyState);
if (aData.type() == CallbackData::Tvoid_t) {
mSocket->FireEvent(aType);
} else if (aData.type() == CallbackData::TTCPError) {
const TCPError& err(aData.get_TCPError());
mSocket->FireErrorEvent(err.name(), err.message());
} else if (aData.type() == CallbackData::TSendableData) {
const SendableData& data = aData.get_SendableData();
if (data.type() == SendableData::TArrayOfuint8_t) {
mSocket->FireDataArrayEvent(aType, data.get_ArrayOfuint8_t());
} else if (data.type() == SendableData::TnsCString) {
mSocket->FireDataStringEvent(aType, data.get_nsCString());
} else {
MOZ_CRASH("Invalid callback data type!");
}
} else {
MOZ_CRASH("Invalid callback type!");
}
return IPC_OK();
}
void TCPSocketChild::SendSend(const nsACString& aData) {
SendData(nsCString(aData));
}
nsresult TCPSocketChild::SendSend(const ArrayBuffer& aData,
uint32_t aByteOffset, uint32_t aByteLength) {
uint32_t buflen = aData.Length();
uint32_t offset = std::min(buflen, aByteOffset);
uint32_t nbytes = std::min(buflen - aByteOffset, aByteLength);
FallibleTArray<uint8_t> fallibleArr;
if (!fallibleArr.InsertElementsAt(0, aData.Data() + offset, nbytes,
fallible)) {
return NS_ERROR_OUT_OF_MEMORY;
}
SendData(SendableData{std::move(fallibleArr)});
return NS_OK;
}
void TCPSocketChild::SetSocket(TCPSocket* aSocket) { mSocket = aSocket; }
void TCPSocketChild::GetHost(nsAString& aHost) { aHost = mHost; }
void TCPSocketChild::GetPort(uint16_t* aPort) { *aPort = mPort; }
mozilla::ipc::IPCResult TCPSocketChild::RecvRequestDelete() {
mozilla::Unused << Send__delete__(this);
return IPC_OK();
}
} // namespace mozilla::dom
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