зеркало из https://github.com/mozilla/gecko-dev.git
175 строки
5.4 KiB
C++
175 строки
5.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* 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 nsPluginStreamListenerPeer_h_
|
|
#define nsPluginStreamListenerPeer_h_
|
|
|
|
#include "nscore.h"
|
|
#include "nsIFile.h"
|
|
#include "nsIStreamListener.h"
|
|
#include "nsIProgressEventSink.h"
|
|
#include "nsIHttpHeaderVisitor.h"
|
|
#include "nsWeakReference.h"
|
|
#include "nsNPAPIPluginStreamListener.h"
|
|
#include "nsHashtable.h"
|
|
#include "nsNPAPIPluginInstance.h"
|
|
#include "nsIInterfaceRequestor.h"
|
|
#include "nsIChannelEventSink.h"
|
|
|
|
class nsIChannel;
|
|
|
|
/**
|
|
* When a plugin requests opens multiple requests to the same URL and
|
|
* the request must be satified by saving a file to disk, each stream
|
|
* listener holds a reference to the backing file: the file is only removed
|
|
* when all the listeners are done.
|
|
*/
|
|
class CachedFileHolder
|
|
{
|
|
public:
|
|
CachedFileHolder(nsIFile* cacheFile);
|
|
~CachedFileHolder();
|
|
|
|
void AddRef();
|
|
void Release();
|
|
|
|
nsIFile* file() const { return mFile; }
|
|
|
|
private:
|
|
nsAutoRefCnt mRefCnt;
|
|
nsCOMPtr<nsIFile> mFile;
|
|
};
|
|
|
|
class nsPluginStreamListenerPeer : public nsIStreamListener,
|
|
public nsIProgressEventSink,
|
|
public nsIHttpHeaderVisitor,
|
|
public nsSupportsWeakReference,
|
|
public nsIInterfaceRequestor,
|
|
public nsIChannelEventSink
|
|
{
|
|
public:
|
|
nsPluginStreamListenerPeer();
|
|
virtual ~nsPluginStreamListenerPeer();
|
|
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_NSIPROGRESSEVENTSINK
|
|
NS_DECL_NSIREQUESTOBSERVER
|
|
NS_DECL_NSISTREAMLISTENER
|
|
NS_DECL_NSIHTTPHEADERVISITOR
|
|
NS_DECL_NSIINTERFACEREQUESTOR
|
|
NS_DECL_NSICHANNELEVENTSINK
|
|
|
|
// Called by RequestRead
|
|
void
|
|
MakeByteRangeString(NPByteRange* aRangeList, nsACString &string, int32_t *numRequests);
|
|
|
|
bool UseExistingPluginCacheFile(nsPluginStreamListenerPeer* psi);
|
|
|
|
// Called by GetURL and PostURL (via NewStream) or by the host in the case of
|
|
// the initial plugin stream.
|
|
nsresult Initialize(nsIURI *aURL,
|
|
nsNPAPIPluginInstance *aInstance,
|
|
nsNPAPIPluginStreamListener *aListener);
|
|
|
|
nsresult OnFileAvailable(nsIFile* aFile);
|
|
|
|
nsresult ServeStreamAsFile(nsIRequest *request, nsISupports *ctxt);
|
|
|
|
nsNPAPIPluginInstance *GetPluginInstance() { return mPluginInstance; }
|
|
|
|
nsresult RequestRead(NPByteRange* rangeList);
|
|
nsresult GetLength(uint32_t* result);
|
|
nsresult GetURL(const char** result);
|
|
nsresult GetLastModified(uint32_t* result);
|
|
nsresult IsSeekable(bool* result);
|
|
nsresult GetContentType(char** result);
|
|
nsresult GetStreamOffset(int32_t* result);
|
|
nsresult SetStreamOffset(int32_t value);
|
|
|
|
void TrackRequest(nsIRequest* request)
|
|
{
|
|
mRequests.AppendObject(request);
|
|
}
|
|
|
|
void ReplaceRequest(nsIRequest* oldRequest, nsIRequest* newRequest)
|
|
{
|
|
int32_t i = mRequests.IndexOfObject(oldRequest);
|
|
if (i == -1) {
|
|
NS_ASSERTION(mRequests.Count() == 0,
|
|
"Only our initial stream should be unknown!");
|
|
mRequests.AppendObject(oldRequest);
|
|
}
|
|
else {
|
|
mRequests.ReplaceObjectAt(newRequest, i);
|
|
}
|
|
}
|
|
|
|
void CancelRequests(nsresult status)
|
|
{
|
|
// Copy the array to avoid modification during the loop.
|
|
nsCOMArray<nsIRequest> requestsCopy(mRequests);
|
|
for (int32_t i = 0; i < requestsCopy.Count(); ++i)
|
|
requestsCopy[i]->Cancel(status);
|
|
}
|
|
|
|
void SuspendRequests() {
|
|
nsCOMArray<nsIRequest> requestsCopy(mRequests);
|
|
for (int32_t i = 0; i < requestsCopy.Count(); ++i)
|
|
requestsCopy[i]->Suspend();
|
|
}
|
|
|
|
void ResumeRequests() {
|
|
nsCOMArray<nsIRequest> requestsCopy(mRequests);
|
|
for (int32_t i = 0; i < requestsCopy.Count(); ++i)
|
|
requestsCopy[i]->Resume();
|
|
}
|
|
|
|
private:
|
|
nsresult SetUpStreamListener(nsIRequest* request, nsIURI* aURL);
|
|
nsresult SetupPluginCacheFile(nsIChannel* channel);
|
|
nsresult GetInterfaceGlobal(const nsIID& aIID, void** result);
|
|
|
|
nsCOMPtr<nsIURI> mURL;
|
|
nsCString mURLSpec; // Have to keep this member because GetURL hands out char*
|
|
nsRefPtr<nsNPAPIPluginStreamListener> mPStreamListener;
|
|
|
|
// Set to true if we request failed (like with a HTTP response of 404)
|
|
bool mRequestFailed;
|
|
|
|
/*
|
|
* Set to true after nsNPAPIPluginStreamListener::OnStartBinding() has
|
|
* been called. Checked in ::OnStopRequest so we can call the
|
|
* plugin's OnStartBinding if, for some reason, it has not already
|
|
* been called.
|
|
*/
|
|
bool mStartBinding;
|
|
bool mHaveFiredOnStartRequest;
|
|
// these get passed to the plugin stream listener
|
|
uint32_t mLength;
|
|
int32_t mStreamType;
|
|
|
|
// local cached file, we save the content into local cache if browser cache is not available,
|
|
// or plugin asks stream as file and it expects file extension until bug 90558 got fixed
|
|
nsRefPtr<CachedFileHolder> mLocalCachedFileHolder;
|
|
nsCOMPtr<nsIOutputStream> mFileCacheOutputStream;
|
|
nsHashtable *mDataForwardToRequest;
|
|
|
|
nsCString mContentType;
|
|
bool mSeekable;
|
|
uint32_t mModified;
|
|
nsRefPtr<nsNPAPIPluginInstance> mPluginInstance;
|
|
int32_t mStreamOffset;
|
|
bool mStreamComplete;
|
|
|
|
public:
|
|
bool mAbort;
|
|
int32_t mPendingRequests;
|
|
nsWeakPtr mWeakPtrChannelCallbacks;
|
|
nsWeakPtr mWeakPtrChannelLoadGroup;
|
|
nsCOMArray<nsIRequest> mRequests;
|
|
};
|
|
|
|
#endif // nsPluginStreamListenerPeer_h_
|