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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#ifndef mozilla_net_FTPChannelParent_h
#define mozilla_net_FTPChannelParent_h
#include "ADivertableParentChannel.h"
#include "mozilla/net/PFTPChannelParent.h"
#include "mozilla/net/NeckoParent.h"
#include "nsIParentChannel.h"
#include "nsIInterfaceRequestor.h"
#include "nsIChannelEventSink.h"
#include "nsIFTPChannelParentInternal.h"
class nsILoadContext;
namespace mozilla {
namespace dom {
class TabParent;
class PBrowserOrId;
} // namespace dom
namespace net {
class ChannelEventQueue;
class FTPChannelParent final : public PFTPChannelParent
, public nsIParentChannel
, public nsIInterfaceRequestor
, public ADivertableParentChannel
, public nsIChannelEventSink
, public nsIFTPChannelParentInternal
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIREQUESTOBSERVER
NS_DECL_NSISTREAMLISTENER
NS_DECL_NSIPARENTCHANNEL
NS_DECL_NSIINTERFACEREQUESTOR
NS_DECL_NSICHANNELEVENTSINK
FTPChannelParent(const dom::PBrowserOrId& aIframeEmbedding,
nsILoadContext* aLoadContext,
PBOverrideStatus aOverrideStatus);
bool Init(const FTPChannelCreationArgs& aOpenArgs);
// ADivertableParentChannel functions.
void DivertTo(nsIStreamListener *aListener) override;
nsresult SuspendForDiversion() override;
nsresult SuspendMessageDiversion() override;
nsresult ResumeMessageDiversion() override;
// Calls OnStartRequest for "DivertTo" listener, then notifies child channel
// that it should divert OnDataAvailable and OnStopRequest calls to this
// parent channel.
void StartDiversion();
// Handles calling OnStart/Stop if there are errors during diversion.
// Called asynchronously from FailDiversion.
void NotifyDiversionFailed(nsresult aErrorCode, bool aSkipResume = true);
NS_IMETHOD SetErrorMsg(const char *aMsg, bool aUseUTF8) override;
protected:
virtual ~FTPChannelParent();
// private, supporting function for ADivertableParentChannel.
nsresult ResumeForDiversion();
// Asynchronously calls NotifyDiversionFailed.
void FailDiversion(nsresult aErrorCode, bool aSkipResume = true);
bool DoAsyncOpen(const URIParams& aURI, const uint64_t& aStartPos,
const nsCString& aEntityID,
const OptionalInputStreamParams& aUploadStream,
const OptionalLoadInfoArgs& aLoadInfoArgs);
// used to connect redirected-to channel in parent with just created
// ChildChannel. Used during HTTP->FTP redirects.
bool ConnectChannel(const uint32_t& channelId);
void DivertOnDataAvailable(const nsCString& data,
const uint64_t& offset,
const uint32_t& count);
void DivertOnStopRequest(const nsresult& statusCode);
void DivertComplete();
friend class FTPDivertDataAvailableEvent;
friend class FTPDivertStopRequestEvent;
friend class FTPDivertCompleteEvent;
virtual bool RecvCancel(const nsresult& status) override;
virtual bool RecvSuspend() override;
virtual bool RecvResume() override;
virtual bool RecvDivertOnDataAvailable(const nsCString& data,
const uint64_t& offset,
const uint32_t& count) override;
virtual bool RecvDivertOnStopRequest(const nsresult& statusCode) override;
virtual bool RecvDivertComplete() override;
nsresult SuspendChannel();
nsresult ResumeChannel();
virtual void ActorDestroy(ActorDestroyReason why) override;
// if configured to use HTTP proxy for FTP, this can an an HTTP channel.
nsCOMPtr<nsIChannel> mChannel;
bool mIPCClosed;
nsCOMPtr<nsILoadContext> mLoadContext;
PBOverrideStatus mPBOverride;
// If OnStart/OnData/OnStop have been diverted from the child, forward them to
// this listener.
nsCOMPtr<nsIStreamListener> mDivertToListener;
// Set to the canceled status value if the main channel was canceled.
nsresult mStatus;
// Once set, no OnStart/OnData/OnStop calls should be accepted; conversely, it
// must be set when RecvDivertOnData/~DivertOnStop/~DivertComplete are
// received from the child channel.
bool mDivertingFromChild;
// Set if OnStart|StopRequest was called during a diversion from the child.
bool mDivertedOnStartRequest;
// Set if we successfully suspended the nsHttpChannel for diversion. Unset
// when we call ResumeForDiversion.
bool mSuspendedForDiversion;
RefPtr<mozilla::dom::TabParent> mTabParent;
RefPtr<ChannelEventQueue> mEventQ;
nsCString mErrorMsg;
bool mUseUTF8;
};
} // namespace net
} // namespace mozilla
#endif // mozilla_net_FTPChannelParent_h
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