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/*
* Copyright (C) 2005, 2006, 2011 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef ResourceLoader_h
#define ResourceLoader_h
#include "ResourceHandleClient.h"
#include "ResourceLoaderOptions.h"
#include "ResourceLoaderTypes.h"
#include "ResourceRequest.h"
#include "ResourceResponse.h"
#include <wtf/Forward.h>
#include <wtf/RefCounted.h>
namespace WebCore {
class AuthenticationChallenge;
class DocumentLoader;
class Frame;
class FrameLoader;
class KURL;
class ResourceBuffer;
class ResourceHandle;
class ResourceLoader : public RefCounted<ResourceLoader>, protected ResourceHandleClient {
public:
virtual ~ResourceLoader();
void cancel();
virtual bool init(const ResourceRequest&);
FrameLoader* frameLoader() const;
DocumentLoader* documentLoader() const { return m_documentLoader.get(); }
const ResourceRequest& originalRequest() const { return m_originalRequest; }
virtual void cancel(const ResourceError&);
ResourceError cancelledError();
ResourceError blockedError();
ResourceError cannotShowURLError();
virtual void setDefersLoading(bool);
bool defersLoading() const { return m_defersLoading; }
unsigned long identifier() const { return m_identifier; }
virtual void releaseResources();
const ResourceResponse& response() const;
ResourceBuffer* resourceData() const { return m_resourceData.get(); }
void clearResourceData();
virtual bool isSubresourceLoader();
virtual void willSendRequest(ResourceRequest&, const ResourceResponse& redirectResponse);
virtual void didSendData(unsigned long long bytesSent, unsigned long long totalBytesToBeSent);
virtual void didReceiveResponse(const ResourceResponse&);
virtual void didReceiveData(const char*, int, long long encodedDataLength, DataPayloadType);
virtual void didReceiveBuffer(PassRefPtr<SharedBuffer>, long long encodedDataLength, DataPayloadType);
void willStopBufferingData(const char*, int);
virtual void didFinishLoading(double finishTime);
virtual void didFail(const ResourceError&);
#if USE(NETWORK_CFDATA_ARRAY_CALLBACK)
virtual void didReceiveDataArray(CFArrayRef dataArray);
#endif
void didChangePriority(ResourceLoadPriority);
virtual bool shouldUseCredentialStorage();
virtual void didReceiveAuthenticationChallenge(const AuthenticationChallenge&);
void didCancelAuthenticationChallenge(const AuthenticationChallenge&);
#if USE(PROTECTION_SPACE_AUTH_CALLBACK)
virtual bool canAuthenticateAgainstProtectionSpace(const ProtectionSpace&);
#endif
virtual void receivedCancellation(const AuthenticationChallenge&);
// ResourceHandleClient
virtual void willSendRequest(ResourceHandle*, ResourceRequest&, const ResourceResponse& redirectResponse) OVERRIDE;
virtual void didSendData(ResourceHandle*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent) OVERRIDE;
virtual void didReceiveResponse(ResourceHandle*, const ResourceResponse&) OVERRIDE;
virtual void didReceiveData(ResourceHandle*, const char*, int, int encodedDataLength) OVERRIDE;
virtual void didReceiveBuffer(ResourceHandle*, PassRefPtr<SharedBuffer>, int encodedDataLength) OVERRIDE;
virtual void didFinishLoading(ResourceHandle*, double finishTime) OVERRIDE;
virtual void didFail(ResourceHandle*, const ResourceError&) OVERRIDE;
virtual void wasBlocked(ResourceHandle*) OVERRIDE;
virtual void cannotShowURL(ResourceHandle*) OVERRIDE;
virtual void willStopBufferingData(ResourceHandle*, const char* data, int length) { willStopBufferingData(data, length); }
virtual bool shouldUseCredentialStorage(ResourceHandle*) OVERRIDE { return shouldUseCredentialStorage(); }
virtual void didReceiveAuthenticationChallenge(ResourceHandle*, const AuthenticationChallenge& challenge) OVERRIDE { didReceiveAuthenticationChallenge(challenge); }
virtual void didCancelAuthenticationChallenge(ResourceHandle*, const AuthenticationChallenge& challenge) OVERRIDE { didCancelAuthenticationChallenge(challenge); }
#if USE(NETWORK_CFDATA_ARRAY_CALLBACK)
virtual void didReceiveDataArray(ResourceHandle*, CFArrayRef dataArray) OVERRIDE;
#endif
#if USE(PROTECTION_SPACE_AUTH_CALLBACK)
virtual bool canAuthenticateAgainstProtectionSpace(ResourceHandle*, const ProtectionSpace& protectionSpace) OVERRIDE { return canAuthenticateAgainstProtectionSpace(protectionSpace); }
#endif
virtual void receivedCancellation(ResourceHandle*, const AuthenticationChallenge& challenge) OVERRIDE { receivedCancellation(challenge); }
#if PLATFORM(MAC)
#if USE(CFNETWORK)
virtual CFCachedURLResponseRef willCacheResponse(ResourceHandle*, CFCachedURLResponseRef) OVERRIDE;
#else
virtual NSCachedURLResponse* willCacheResponse(ResourceHandle*, NSCachedURLResponse*) OVERRIDE;
#endif
#endif // PLATFORM(MAC)
#if PLATFORM(WIN) && USE(CFNETWORK)
// FIXME: Windows should use willCacheResponse - <https://bugs.webkit.org/show_bug.cgi?id=57257>.
virtual bool shouldCacheResponse(ResourceHandle*, CFCachedURLResponseRef) OVERRIDE;
#endif
const KURL& url() const { return m_request.url(); }
ResourceHandle* handle() const { return m_handle.get(); }
bool shouldSendResourceLoadCallbacks() const { return m_options.sendLoadCallbacks == SendCallbacks; }
void setSendCallbackPolicy(SendCallbackPolicy sendLoadCallbacks) { m_options.sendLoadCallbacks = sendLoadCallbacks; }
bool shouldSniffContent() const { return m_options.sniffContent == SniffContent; }
ClientCredentialPolicy clientCredentialPolicy() const { return m_options.clientCredentialPolicy; }
bool reachedTerminalState() const { return m_reachedTerminalState; }
const ResourceRequest& request() const { return m_request; }
void setDataBufferingPolicy(DataBufferingPolicy);
protected:
ResourceLoader(Frame*, ResourceLoaderOptions);
friend class ResourceLoadScheduler; // for access to start()
// start() actually sends the load to the network (unless the load is being
// deferred) and should only be called by ResourceLoadScheduler or setDefersLoading().
void start();
void didFinishLoadingOnePart(double finishTime);
void cleanupForError(const ResourceError&);
bool wasCancelled() const { return m_cancellationStatus >= Cancelled; }
void didReceiveDataOrBuffer(const char*, int, PassRefPtr<SharedBuffer>, long long encodedDataLength, DataPayloadType);
const ResourceLoaderOptions& options() { return m_options; }
RefPtr<ResourceHandle> m_handle;
RefPtr<Frame> m_frame;
RefPtr<DocumentLoader> m_documentLoader;
ResourceResponse m_response;
private:
virtual void willCancel(const ResourceError&) = 0;
virtual void didCancel(const ResourceError&) = 0;
void addDataOrBuffer(const char*, int, SharedBuffer*, DataPayloadType);
ResourceRequest m_request;
ResourceRequest m_originalRequest; // Before redirects.
RefPtr<ResourceBuffer> m_resourceData;
unsigned long m_identifier;
bool m_reachedTerminalState;
bool m_notifiedLoadComplete;
enum CancellationStatus {
NotCancelled,
CalledWillCancel,
Cancelled,
FinishedCancel
};
CancellationStatus m_cancellationStatus;
bool m_defersLoading;
ResourceRequest m_deferredRequest;
ResourceLoaderOptions m_options;
};
inline const ResourceResponse& ResourceLoader::response() const
{
return m_response;
}
}
#endif
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