gecko-dev/dom/network/TCPSocketParent.cpp
2019-07-10 03:27:30 +00:00

345 lines
10 KiB
C++

/* -*- 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 "TCPSocketParent.h"
#include "jsapi.h"
#include "jsfriendapi.h"
#include "nsJSUtils.h"
#include "mozilla/Unused.h"
#include "mozilla/net/NeckoCommon.h"
#include "mozilla/net/PNeckoParent.h"
#include "mozilla/dom/ScriptSettings.h"
#include "mozilla/dom/BrowserParent.h"
#include "mozilla/HoldDropJSObjects.h"
#include "nsISocketTransportService.h"
#include "nsISocketTransport.h"
#include "nsIScriptSecurityManager.h"
#include "nsNetUtil.h"
namespace IPC {
// Defined in TCPSocketChild.cpp
extern bool DeserializeArrayBuffer(JSContext* aCx,
const nsTArray<uint8_t>& aBuffer,
JS::MutableHandle<JS::Value> aVal);
} // namespace IPC
namespace mozilla {
namespace net {
//
// set MOZ_LOG=TCPSocket:5
//
extern LazyLogModule gTCPSocketLog;
#define TCPSOCKET_LOG(args) MOZ_LOG(gTCPSocketLog, LogLevel::Debug, args)
#define TCPSOCKET_LOG_ENABLED() MOZ_LOG_TEST(gTCPSocketLog, LogLevel::Debug)
} // namespace net
using namespace net;
namespace dom {
static void FireInteralError(TCPSocketParent* aActor, uint32_t aLineNo) {
MOZ_ASSERT(aActor->IPCOpen());
mozilla::Unused << aActor->SendCallback(
NS_LITERAL_STRING("onerror"),
TCPError(NS_LITERAL_STRING("InvalidStateError"),
NS_LITERAL_STRING("Internal error")),
static_cast<uint32_t>(TCPReadyState::Connecting));
}
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(TCPSocketParentBase)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTION(TCPSocketParentBase, mSocket)
NS_IMPL_CYCLE_COLLECTING_ADDREF(TCPSocketParentBase)
NS_IMPL_CYCLE_COLLECTING_RELEASE(TCPSocketParentBase)
TCPSocketParentBase::TCPSocketParentBase() : mIPCOpen(false) {}
TCPSocketParentBase::~TCPSocketParentBase() {}
void TCPSocketParentBase::ReleaseIPDLReference() {
MOZ_ASSERT(mIPCOpen);
mIPCOpen = false;
this->Release();
}
void TCPSocketParentBase::AddIPDLReference() {
MOZ_ASSERT(!mIPCOpen);
mIPCOpen = true;
this->AddRef();
}
NS_IMETHODIMP_(MozExternalRefCountType) TCPSocketParent::Release(void) {
nsrefcnt refcnt = TCPSocketParentBase::Release();
if (refcnt == 1 && mIPCOpen) {
mozilla::Unused << PTCPSocketParent::SendRequestDelete();
return 1;
}
return refcnt;
}
mozilla::ipc::IPCResult TCPSocketParent::RecvOpen(
const nsString& aHost, const uint16_t& aPort, const bool& aUseSSL,
const bool& aUseArrayBuffers) {
mSocket = new TCPSocket(nullptr, aHost, aPort, aUseSSL, aUseArrayBuffers);
mSocket->SetSocketBridgeParent(this);
NS_ENSURE_SUCCESS(mSocket->Init(), IPC_OK());
return IPC_OK();
}
mozilla::ipc::IPCResult TCPSocketParent::RecvOpenBind(
const nsCString& aRemoteHost, const uint16_t& aRemotePort,
const nsCString& aLocalAddr, const uint16_t& aLocalPort,
const bool& aUseSSL, const bool& aReuseAddrPort,
const bool& aUseArrayBuffers, const nsCString& aFilter) {
nsresult rv;
nsCOMPtr<nsISocketTransportService> sts =
do_GetService("@mozilla.org/network/socket-transport-service;1", &rv);
if (NS_FAILED(rv)) {
FireInteralError(this, __LINE__);
return IPC_OK();
}
nsCOMPtr<nsISocketTransport> socketTransport;
if (aUseSSL) {
AutoTArray<nsCString, 1> socketTypes = {NS_LITERAL_CSTRING("ssl")};
rv = sts->CreateTransport(socketTypes, aRemoteHost, aRemotePort, nullptr,
getter_AddRefs(socketTransport));
} else {
rv = sts->CreateTransport(nsTArray<nsCString>(), aRemoteHost, aRemotePort,
nullptr, getter_AddRefs(socketTransport));
}
if (NS_FAILED(rv)) {
FireInteralError(this, __LINE__);
return IPC_OK();
}
// in most cases aReuseAddrPort is false, but ICE TCP needs
// sockets options set that allow addr/port reuse
socketTransport->SetReuseAddrPort(aReuseAddrPort);
PRNetAddr prAddr;
if (PR_SUCCESS != PR_InitializeNetAddr(PR_IpAddrAny, aLocalPort, &prAddr)) {
FireInteralError(this, __LINE__);
return IPC_OK();
}
if (PR_SUCCESS != PR_StringToNetAddr(aLocalAddr.BeginReading(), &prAddr)) {
FireInteralError(this, __LINE__);
return IPC_OK();
}
mozilla::net::NetAddr addr;
PRNetAddrToNetAddr(&prAddr, &addr);
rv = socketTransport->Bind(&addr);
if (NS_FAILED(rv)) {
FireInteralError(this, __LINE__);
return IPC_OK();
}
if (!aFilter.IsEmpty()) {
nsAutoCString contractId(NS_NETWORK_TCP_SOCKET_FILTER_HANDLER_PREFIX);
contractId.Append(aFilter);
nsCOMPtr<nsISocketFilterHandler> filterHandler =
do_GetService(contractId.get());
if (!filterHandler) {
NS_ERROR("Content doesn't have a valid filter");
FireInteralError(this, __LINE__);
return IPC_OK();
}
rv = filterHandler->NewFilter(getter_AddRefs(mFilter));
if (NS_FAILED(rv)) {
NS_ERROR("Cannot create filter that content specified");
FireInteralError(this, __LINE__);
return IPC_OK();
}
}
mSocket = new TCPSocket(nullptr, NS_ConvertUTF8toUTF16(aRemoteHost),
aRemotePort, aUseSSL, aUseArrayBuffers);
mSocket->SetSocketBridgeParent(this);
rv = mSocket->InitWithUnconnectedTransport(socketTransport);
NS_ENSURE_SUCCESS(rv, IPC_OK());
return IPC_OK();
}
mozilla::ipc::IPCResult TCPSocketParent::RecvStartTLS() {
NS_ENSURE_TRUE(mSocket, IPC_OK());
ErrorResult rv;
mSocket->UpgradeToSecure(rv);
if (NS_WARN_IF(rv.Failed())) {
rv.SuppressException();
}
return IPC_OK();
}
mozilla::ipc::IPCResult TCPSocketParent::RecvSuspend() {
NS_ENSURE_TRUE(mSocket, IPC_OK());
mSocket->Suspend();
return IPC_OK();
}
mozilla::ipc::IPCResult TCPSocketParent::RecvResume() {
NS_ENSURE_TRUE(mSocket, IPC_OK());
ErrorResult rv;
mSocket->Resume(rv);
if (NS_WARN_IF(rv.Failed())) {
rv.SuppressException();
}
return IPC_OK();
}
mozilla::ipc::IPCResult TCPSocketParent::RecvData(
const SendableData& aData, const uint32_t& aTrackingNumber) {
ErrorResult rv;
if (mFilter) {
mozilla::net::NetAddr addr; // dummy value
bool allowed;
MOZ_ASSERT(aData.type() == SendableData::TArrayOfuint8_t,
"Unsupported data type for filtering");
const nsTArray<uint8_t>& data(aData.get_ArrayOfuint8_t());
nsresult nsrv =
mFilter->FilterPacket(&addr, data.Elements(), data.Length(),
nsISocketFilter::SF_OUTGOING, &allowed);
// Reject sending of unallowed data
if (NS_WARN_IF(NS_FAILED(nsrv)) || !allowed) {
TCPSOCKET_LOG(("%s: Dropping outgoing TCP packet", __FUNCTION__));
return IPC_FAIL_NO_REASON(this);
}
}
switch (aData.type()) {
case SendableData::TArrayOfuint8_t: {
AutoSafeJSContext autoCx;
JS::Rooted<JS::Value> val(autoCx);
const nsTArray<uint8_t>& buffer = aData.get_ArrayOfuint8_t();
bool ok = IPC::DeserializeArrayBuffer(autoCx, buffer, &val);
NS_ENSURE_TRUE(ok, IPC_OK());
RootedSpiderMonkeyInterface<ArrayBuffer> data(autoCx);
if (!data.Init(&val.toObject())) {
TCPSOCKET_LOG(("%s: Failed to allocate memory", __FUNCTION__));
return IPC_FAIL_NO_REASON(this);
}
Optional<uint32_t> byteLength(buffer.Length());
mSocket->SendWithTrackingNumber(autoCx, data, 0, byteLength,
aTrackingNumber, rv);
break;
}
case SendableData::TnsCString: {
const nsCString& strData = aData.get_nsCString();
mSocket->SendWithTrackingNumber(strData, aTrackingNumber, rv);
break;
}
default:
MOZ_CRASH("unexpected SendableData type");
}
NS_ENSURE_SUCCESS(rv.StealNSResult(), IPC_OK());
return IPC_OK();
}
mozilla::ipc::IPCResult TCPSocketParent::RecvClose() {
NS_ENSURE_TRUE(mSocket, IPC_OK());
mSocket->Close();
return IPC_OK();
}
void TCPSocketParent::FireErrorEvent(const nsAString& aName,
const nsAString& aType,
TCPReadyState aReadyState) {
SendEvent(NS_LITERAL_STRING("error"),
TCPError(nsString(aName), nsString(aType)), aReadyState);
}
void TCPSocketParent::FireEvent(const nsAString& aType,
TCPReadyState aReadyState) {
return SendEvent(aType, mozilla::void_t(), aReadyState);
}
void TCPSocketParent::FireArrayBufferDataEvent(nsTArray<uint8_t>& aBuffer,
TCPReadyState aReadyState) {
nsTArray<uint8_t> arr;
arr.SwapElements(aBuffer);
if (mFilter) {
bool allowed;
mozilla::net::NetAddr addr;
nsresult nsrv =
mFilter->FilterPacket(&addr, arr.Elements(), arr.Length(),
nsISocketFilter::SF_INCOMING, &allowed);
// receiving unallowed data, drop it.
if (NS_WARN_IF(NS_FAILED(nsrv)) || !allowed) {
TCPSOCKET_LOG(("%s: Dropping incoming TCP packet", __FUNCTION__));
return;
}
}
SendableData data(arr);
SendEvent(NS_LITERAL_STRING("data"), data, aReadyState);
}
void TCPSocketParent::FireStringDataEvent(const nsACString& aData,
TCPReadyState aReadyState) {
SendableData data((nsCString(aData)));
MOZ_ASSERT(!mFilter, "Socket filtering doesn't support nsCString");
SendEvent(NS_LITERAL_STRING("data"), data, aReadyState);
}
void TCPSocketParent::SendEvent(const nsAString& aType, CallbackData aData,
TCPReadyState aReadyState) {
if (mIPCOpen) {
mozilla::Unused << PTCPSocketParent::SendCallback(
nsString(aType), aData, static_cast<uint32_t>(aReadyState));
}
}
void TCPSocketParent::SetSocket(TCPSocket* socket) { mSocket = socket; }
nsresult TCPSocketParent::GetHost(nsAString& aHost) {
if (!mSocket) {
NS_ERROR("No internal socket instance mSocket!");
return NS_ERROR_FAILURE;
}
mSocket->GetHost(aHost);
return NS_OK;
}
nsresult TCPSocketParent::GetPort(uint16_t* aPort) {
if (!mSocket) {
NS_ERROR("No internal socket instance mSocket!");
return NS_ERROR_FAILURE;
}
*aPort = mSocket->Port();
return NS_OK;
}
void TCPSocketParent::ActorDestroy(ActorDestroyReason why) {
if (mSocket) {
mSocket->Close();
}
mSocket = nullptr;
}
mozilla::ipc::IPCResult TCPSocketParent::RecvRequestDelete() {
mozilla::Unused << Send__delete__(this);
return IPC_OK();
}
} // namespace dom
} // namespace mozilla