/* vim: set sw=2 ts=8 et 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 "necko-config.h"

#include "nsHttp.h"

#include "mozilla/net/NeckoChild.h"

#include "mozilla/dom/ContentChild.h"

#include "mozilla/dom/TabChild.h"

#include "mozilla/net/HttpChannelChild.h"

#include "mozilla/net/CookieServiceChild.h"

#include "mozilla/net/WyciwygChannelChild.h"

#include "mozilla/net/FTPChannelChild.h"

#include "mozilla/net/WebSocketChannelChild.h"

#include "mozilla/net/WebSocketEventListenerChild.h"

#include "mozilla/net/DNSRequestChild.h"

#include "mozilla/net/ChannelDiverterChild.h"

#include "mozilla/net/IPCTransportProvider.h"

#include "mozilla/dom/network/TCPSocketChild.h"

#include "mozilla/dom/network/TCPServerSocketChild.h"

#include "mozilla/dom/network/UDPSocketChild.h"

#include "mozilla/net/AltDataOutputStreamChild.h"

#ifdef MOZ_WEBRTC

#include "mozilla/net/StunAddrsRequestChild.h"

#endif

#include "SerializedLoadContext.h"

#include "nsGlobalWindow.h"

#include "nsIOService.h"

#include "nsINetworkPredictor.h"

#include "nsINetworkPredictorVerifier.h"

#include "mozilla/ipc/URIUtils.h"

#include "nsNetUtil.h"

using mozilla::dom::TCPServerSocketChild;

using mozilla::dom::TCPSocketChild;

using mozilla::dom::UDPSocketChild;

namespace mozilla {

namespace net {

PNeckoChild* gNeckoChild = nullptr;

// C++ file contents

NeckoChild::NeckoChild() {}

NeckoChild::~NeckoChild() {

  // Send__delete__(gNeckoChild);

  gNeckoChild = nullptr;

}

void NeckoChild::InitNeckoChild() {

  MOZ_ASSERT(IsNeckoChild(), "InitNeckoChild called by non-child!");

  if (!gNeckoChild) {

    mozilla::dom::ContentChild* cpc =

        mozilla::dom::ContentChild::GetSingleton();

    NS_ASSERTION(cpc, "Content Protocol is NULL!");

    if (NS_WARN_IF(cpc->IsShuttingDown())) {

      return;

    }

    gNeckoChild = cpc->SendPNeckoConstructor();

    NS_ASSERTION(gNeckoChild, "PNecko Protocol init failed!");

  }

}

PHttpChannelChild* NeckoChild::AllocPHttpChannelChild(

    const PBrowserOrId& browser, const SerializedLoadContext& loadContext,

    const HttpChannelCreationArgs& aOpenArgs) {

  // We don't allocate here: instead we always use IPDL constructor that takes

  // an existing HttpChildChannel

  NS_NOTREACHED("AllocPHttpChannelChild should not be called on child");

  return nullptr;

}

bool NeckoChild::DeallocPHttpChannelChild(PHttpChannelChild* channel) {

  MOZ_ASSERT(IsNeckoChild(), "DeallocPHttpChannelChild called by non-child!");

  HttpChannelChild* child = static_cast<HttpChannelChild*>(channel);

  child->ReleaseIPDLReference();

  return true;

}

PStunAddrsRequestChild* NeckoChild::AllocPStunAddrsRequestChild() {

  // We don't allocate here: instead we always use IPDL constructor that takes

  // an existing object

  NS_NOTREACHED("AllocPStunAddrsRequestChild should not be called on child");

  return nullptr;

}

bool NeckoChild::DeallocPStunAddrsRequestChild(PStunAddrsRequestChild* aActor) {

#ifdef MOZ_WEBRTC

  StunAddrsRequestChild* p = static_cast<StunAddrsRequestChild*>(aActor);

  p->ReleaseIPDLReference();

#endif

  return true;

}

PAltDataOutputStreamChild* NeckoChild::AllocPAltDataOutputStreamChild(

    const nsCString& type, PHttpChannelChild* channel) {

  // We don't allocate here: see HttpChannelChild::OpenAlternativeOutputStream()

  NS_NOTREACHED("AllocPAltDataOutputStreamChild should not be called");

  return nullptr;

}

bool NeckoChild::DeallocPAltDataOutputStreamChild(

    PAltDataOutputStreamChild* aActor) {

  AltDataOutputStreamChild* child =

      static_cast<AltDataOutputStreamChild*>(aActor);

  child->ReleaseIPDLReference();

  return true;

}

PFTPChannelChild* NeckoChild::AllocPFTPChannelChild(

    const PBrowserOrId& aBrowser, const SerializedLoadContext& aSerialized,

    const FTPChannelCreationArgs& aOpenArgs) {

  // We don't allocate here: see FTPChannelChild::AsyncOpen()

  MOZ_CRASH("AllocPFTPChannelChild should not be called");

  return nullptr;

}

bool NeckoChild::DeallocPFTPChannelChild(PFTPChannelChild* channel) {

  MOZ_ASSERT(IsNeckoChild(), "DeallocPFTPChannelChild called by non-child!");

  FTPChannelChild* child = static_cast<FTPChannelChild*>(channel);

  child->ReleaseIPDLReference();

  return true;

}

PCookieServiceChild* NeckoChild::AllocPCookieServiceChild() {

  // We don't allocate here: see nsCookieService::GetSingleton()

  NS_NOTREACHED("AllocPCookieServiceChild should not be called");

  return nullptr;

}

bool NeckoChild::DeallocPCookieServiceChild(PCookieServiceChild* cs) {

  NS_ASSERTION(IsNeckoChild(),

               "DeallocPCookieServiceChild called by non-child!");

  CookieServiceChild* p = static_cast<CookieServiceChild*>(cs);

  p->Release();

  return true;

}

PWyciwygChannelChild* NeckoChild::AllocPWyciwygChannelChild() {

  // We don't allocate here: see nsWyciwygProtocolHandler::NewChannel2()

  NS_NOTREACHED("AllocPWyciwygChannelChild should not be called");

  return nullptr;

}

bool NeckoChild::DeallocPWyciwygChannelChild(PWyciwygChannelChild* channel) {

  MOZ_ASSERT(IsNeckoChild(),

             "DeallocPWyciwygChannelChild called by non-child!");

  WyciwygChannelChild* p = static_cast<WyciwygChannelChild*>(channel);

  p->ReleaseIPDLReference();

  return true;

}

PWebSocketChild* NeckoChild::AllocPWebSocketChild(

    const PBrowserOrId& browser, const SerializedLoadContext& aSerialized,

    const uint32_t& aSerial) {

  NS_NOTREACHED("AllocPWebSocketChild should not be called");

  return nullptr;

}

bool NeckoChild::DeallocPWebSocketChild(PWebSocketChild* child) {

  WebSocketChannelChild* p = static_cast<WebSocketChannelChild*>(child);

  p->ReleaseIPDLReference();

  return true;

}

PWebSocketEventListenerChild* NeckoChild::AllocPWebSocketEventListenerChild(

    const uint64_t& aInnerWindowID) {

  nsCOMPtr<nsIEventTarget> target;

  if (nsGlobalWindowInner* win =

          nsGlobalWindowInner::GetInnerWindowWithId(aInnerWindowID)) {

    target = win->EventTargetFor(TaskCategory::Other);

  }

  RefPtr<WebSocketEventListenerChild> c =

      new WebSocketEventListenerChild(aInnerWindowID, target);

  if (target) {

    gNeckoChild->SetEventTargetForActor(c, target);

  }

  return c.forget().take();

}

bool NeckoChild::DeallocPWebSocketEventListenerChild(

    PWebSocketEventListenerChild* aActor) {

  RefPtr<WebSocketEventListenerChild> c =

      dont_AddRef(static_cast<WebSocketEventListenerChild*>(aActor));

  MOZ_ASSERT(c);

  return true;

}

PDataChannelChild* NeckoChild::AllocPDataChannelChild(

    const uint32_t& channelId) {

  MOZ_ASSERT_UNREACHABLE("Should never get here");

  return nullptr;

}

bool NeckoChild::DeallocPDataChannelChild(PDataChannelChild* child) {

  // NB: See DataChannelChild::ActorDestroy.

  return true;

}

PFileChannelChild* NeckoChild::AllocPFileChannelChild(

    const uint32_t& channelId) {

  MOZ_ASSERT_UNREACHABLE("Should never get here");

  return nullptr;

}

bool NeckoChild::DeallocPFileChannelChild(PFileChannelChild* child) {

  // NB: See FileChannelChild::ActorDestroy.

  return true;

}

PSimpleChannelChild* NeckoChild::AllocPSimpleChannelChild(

    const uint32_t& channelId) {

  MOZ_ASSERT_UNREACHABLE("Should never get here");

  return nullptr;

}

bool NeckoChild::DeallocPSimpleChannelChild(PSimpleChannelChild* child) {

  // NB: See SimpleChannelChild::ActorDestroy.

  return true;

}

PTCPSocketChild* NeckoChild::AllocPTCPSocketChild(const nsString& host,

                                                  const uint16_t& port) {

  TCPSocketChild* p = new TCPSocketChild(host, port, nullptr);

  p->AddIPDLReference();

  return p;

}

bool NeckoChild::DeallocPTCPSocketChild(PTCPSocketChild* child) {

  TCPSocketChild* p = static_cast<TCPSocketChild*>(child);

  p->ReleaseIPDLReference();

  return true;

}

PTCPServerSocketChild* NeckoChild::AllocPTCPServerSocketChild(

    const uint16_t& aLocalPort, const uint16_t& aBacklog,

    const bool& aUseArrayBuffers) {

  NS_NOTREACHED("AllocPTCPServerSocket should not be called");

  return nullptr;

}

bool NeckoChild::DeallocPTCPServerSocketChild(PTCPServerSocketChild* child) {

  TCPServerSocketChild* p = static_cast<TCPServerSocketChild*>(child);

  p->ReleaseIPDLReference();

  return true;

}

PUDPSocketChild* NeckoChild::AllocPUDPSocketChild(const Principal& aPrincipal,

                                                  const nsCString& aFilter) {

  NS_NOTREACHED("AllocPUDPSocket should not be called");

  return nullptr;

}

bool NeckoChild::DeallocPUDPSocketChild(PUDPSocketChild* child) {

  UDPSocketChild* p = static_cast<UDPSocketChild*>(child);

  p->ReleaseIPDLReference();

  return true;

}

PDNSRequestChild* NeckoChild::AllocPDNSRequestChild(

    const nsCString& aHost, const OriginAttributes& aOriginAttributes,

    const uint32_t& aFlags, const nsCString& aNetworkInterface) {

  // We don't allocate here: instead we always use IPDL constructor that takes

  // an existing object

  NS_NOTREACHED("AllocPDNSRequestChild should not be called on child");

  return nullptr;

}

bool NeckoChild::DeallocPDNSRequestChild(PDNSRequestChild* aChild) {

  DNSRequestChild* p = static_cast<DNSRequestChild*>(aChild);

  p->ReleaseIPDLReference();

  return true;

}

PChannelDiverterChild* NeckoChild::AllocPChannelDiverterChild(

    const ChannelDiverterArgs& channel) {

  return new ChannelDiverterChild();

  ;

}

bool NeckoChild::DeallocPChannelDiverterChild(PChannelDiverterChild* child) {

  delete static_cast<ChannelDiverterChild*>(child);

  return true;

}

PTransportProviderChild* NeckoChild::AllocPTransportProviderChild() {

  // This refcount is transferred to the receiver of the message that

  // includes the PTransportProviderChild actor.

  RefPtr<TransportProviderChild> res = new TransportProviderChild();

  return res.forget().take();

}

bool NeckoChild::DeallocPTransportProviderChild(

    PTransportProviderChild* aActor) {

  return true;

}

mozilla::ipc::IPCResult NeckoChild::RecvAsyncAuthPromptForNestedFrame(

    const TabId& aNestedFrameId, const nsCString& aUri, const nsString& aRealm,

    const uint64_t& aCallbackId) {

  RefPtr<dom::TabChild> tabChild = dom::TabChild::FindTabChild(aNestedFrameId);

  if (!tabChild) {

    MOZ_CRASH();

    return IPC_FAIL_NO_REASON(this);

  }

  tabChild->SendAsyncAuthPrompt(aUri, aRealm, aCallbackId);

  return IPC_OK();

}

/* Predictor Messages */

mozilla::ipc::IPCResult NeckoChild::RecvPredOnPredictPrefetch(

    const URIParams& aURI, const uint32_t& aHttpStatus) {

  MOZ_ASSERT(NS_IsMainThread(),

             "PredictorChild::RecvOnPredictPrefetch "

             "off main thread.");

  nsCOMPtr<nsIURI> uri = DeserializeURI(aURI);

  // Get the current predictor

  nsresult rv = NS_OK;

  nsCOMPtr<nsINetworkPredictorVerifier> predictor =

      do_GetService("@mozilla.org/network/predictor;1", &rv;;

  NS_ENSURE_SUCCESS(rv, IPC_FAIL_NO_REASON(this));

  predictor->OnPredictPrefetch(uri, aHttpStatus);

  return IPC_OK();

}

mozilla::ipc::IPCResult NeckoChild::RecvPredOnPredictPreconnect(

    const URIParams& aURI) {

  MOZ_ASSERT(NS_IsMainThread(),

             "PredictorChild::RecvOnPredictPreconnect "

             "off main thread.");

  nsCOMPtr<nsIURI> uri = DeserializeURI(aURI);

  // Get the current predictor

  nsresult rv = NS_OK;

  nsCOMPtr<nsINetworkPredictorVerifier> predictor =

      do_GetService("@mozilla.org/network/predictor;1", &rv;;

  NS_ENSURE_SUCCESS(rv, IPC_FAIL_NO_REASON(this));

  predictor->OnPredictPreconnect(uri);

  return IPC_OK();

}

mozilla::ipc::IPCResult NeckoChild::RecvPredOnPredictDNS(

    const URIParams& aURI) {

  MOZ_ASSERT(NS_IsMainThread(),

             "PredictorChild::RecvOnPredictDNS off "

             "main thread.");

  nsCOMPtr<nsIURI> uri = DeserializeURI(aURI);

  // Get the current predictor

  nsresult rv = NS_OK;

  nsCOMPtr<nsINetworkPredictorVerifier> predictor =

      do_GetService("@mozilla.org/network/predictor;1", &rv;;

  NS_ENSURE_SUCCESS(rv, IPC_FAIL_NO_REASON(this));

  predictor->OnPredictDNS(uri);

  return IPC_OK();

}

mozilla::ipc::IPCResult NeckoChild::RecvSpeculativeConnectRequest() {

  nsCOMPtr<nsIObserverService> obsService = services::GetObserverService();

  if (obsService) {

    obsService->NotifyObservers(nullptr, "speculative-connect-request",

                                nullptr);

  }

  return IPC_OK();

}

}  // namespace net

}  // namespace mozilla