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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/. */
#ifndef nsDSURIContentListener_h__
#define nsDSURIContentListener_h__
#include "nsCOMPtr.h"
#include "nsIURIContentListener.h"
#include "nsWeakReference.h"
class nsDocShell;
class nsIWebNavigationInfo;
class nsIHttpChannel;
class nsAString;
class nsDSURIContentListener final
: public nsIURIContentListener
, public nsSupportsWeakReference
{
friend class nsDocShell;
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIURICONTENTLISTENER
nsresult Init();
// Determine if X-Frame-Options allows content to be framed
// as a subdocument
static bool CheckFrameOptions(nsIChannel* aChannel,
nsIDocShell* aDocShell,
nsIPrincipal* aPrincipal);
protected:
explicit nsDSURIContentListener(nsDocShell* aDocShell);
virtual ~nsDSURIContentListener();
void DropDocShellReference()
{
mDocShell = nullptr;
mExistingJPEGRequest = nullptr;
mExistingJPEGStreamListener = nullptr;
}
static bool CheckOneFrameOptionsPolicy(nsIHttpChannel* aHttpChannel,
const nsAString& aPolicy,
nsIDocShell* aDocShell);
enum XFOHeader
{
eDENY,
eSAMEORIGIN,
eALLOWFROM
};
static void ReportXFOViolation(nsIDocShellTreeItem* aTopDocShellItem,
nsIURI* aThisURI,
XFOHeader aHeader);
protected:
nsDocShell* mDocShell;
// Hack to handle multipart images without creating a new viewer
nsCOMPtr<nsIStreamListener> mExistingJPEGStreamListener;
nsCOMPtr<nsIChannel> mExistingJPEGRequest;
// Store the parent listener in either of these depending on
// if supports weak references or not. Proper weak refs are
// preferred and encouraged!
nsWeakPtr mWeakParentContentListener;
nsIURIContentListener* mParentContentListener;
nsCOMPtr<nsIWebNavigationInfo> mNavInfo;
};
#endif /* nsDSURIContentListener_h__ */
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