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/*
* Copyright (C) 2005, 2006 Apple Computer, 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 "ResourceRequest.h"
#include "ResourceResponse.h"
#include <wtf/RefCounted.h>
#include "AuthenticationChallenge.h"
#include "KURL.h"
#include <wtf/Forward.h>
namespace WebCore {
class ApplicationCacheHost;
class DocumentLoader;
class Frame;
class FrameLoader;
class ProtectionSpace;
class ResourceHandle;
class SharedBuffer;
class ResourceLoader : public RefCounted<ResourceLoader>, protected ResourceHandleClient {
public:
virtual ~ResourceLoader();
void cancel();
virtual bool load(const ResourceRequest&);
FrameLoader* frameLoader() const;
DocumentLoader* documentLoader() const { return m_documentLoader.get(); }
virtual void cancel(const ResourceError&);
ResourceError cancelledError();
ResourceError blockedError();
ResourceError cannotShowURLError();
virtual void setDefersLoading(bool);
#if PLATFORM(ANDROID)
// TODO: This needs upstreaming to WebKit.
virtual void pauseLoad(bool);
#endif
void setIdentifier(unsigned long identifier) { m_identifier = identifier; }
unsigned long identifier() const { return m_identifier; }
virtual void releaseResources();
const ResourceResponse& response() const;
virtual void addData(const char*, int, bool allAtOnce);
virtual PassRefPtr<SharedBuffer> resourceData();
void clearResourceData();
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 lengthReceived, bool allAtOnce);
virtual void didReceiveCachedMetadata(const char*, int) { }
void willStopBufferingData(const char*, int);
virtual void didFinishLoading();
virtual void didFail(const ResourceError&);
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);
virtual void didSendData(ResourceHandle*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent);
virtual void didReceiveResponse(ResourceHandle*, const ResourceResponse&);
virtual void didReceiveData(ResourceHandle*, const char*, int, int lengthReceived);
virtual void didReceiveCachedMetadata(ResourceHandle*, const char* data, int length) { didReceiveCachedMetadata(data, length); }
virtual void didFinishLoading(ResourceHandle*);
virtual void didFail(ResourceHandle*, const ResourceError&);
virtual void wasBlocked(ResourceHandle*);
virtual void cannotShowURL(ResourceHandle*);
virtual void willStopBufferingData(ResourceHandle*, const char* data, int length) { willStopBufferingData(data, length); }
virtual bool shouldUseCredentialStorage(ResourceHandle*) { return shouldUseCredentialStorage(); }
virtual void didReceiveAuthenticationChallenge(ResourceHandle*, const AuthenticationChallenge& challenge) { didReceiveAuthenticationChallenge(challenge); }
virtual void didCancelAuthenticationChallenge(ResourceHandle*, const AuthenticationChallenge& challenge) { didCancelAuthenticationChallenge(challenge); }
#if USE(PROTECTION_SPACE_AUTH_CALLBACK)
virtual bool canAuthenticateAgainstProtectionSpace(ResourceHandle*, const ProtectionSpace& protectionSpace) { return canAuthenticateAgainstProtectionSpace(protectionSpace); }
#endif
virtual void receivedCancellation(ResourceHandle*, const AuthenticationChallenge& challenge) { receivedCancellation(challenge); }
virtual void willCacheResponse(ResourceHandle*, CacheStoragePolicy&);
#if PLATFORM(MAC)
virtual NSCachedURLResponse* willCacheResponse(ResourceHandle*, NSCachedURLResponse*);
#endif
#if USE(CFNETWORK)
virtual bool shouldCacheResponse(ResourceHandle*, CFCachedURLResponseRef);
#endif
#if ENABLE(BLOB)
virtual AsyncFileStream* createAsyncFileStream(FileStreamClient*);
#endif
ResourceHandle* handle() const { return m_handle.get(); }
bool sendResourceLoadCallbacks() const { return m_sendResourceLoadCallbacks; }
void setShouldBufferData(bool shouldBufferData);
protected:
ResourceLoader(Frame*, bool sendResourceLoadCallbacks, bool shouldContentSniff);
#if ENABLE(OFFLINE_WEB_APPLICATIONS)
friend class ApplicationCacheHost; // for access to request()
#endif
virtual void didCancel(const ResourceError&);
void didFinishLoadingOnePart();
const ResourceRequest& request() const { return m_request; }
bool reachedTerminalState() const { return m_reachedTerminalState; }
bool cancelled() const { return m_cancelled; }
bool defersLoading() const { return m_defersLoading; }
RefPtr<ResourceHandle> m_handle;
RefPtr<Frame> m_frame;
RefPtr<DocumentLoader> m_documentLoader;
ResourceResponse m_response;
private:
ResourceRequest m_request;
RefPtr<SharedBuffer> m_resourceData;
unsigned long m_identifier;
bool m_reachedTerminalState;
bool m_cancelled;
bool m_calledDidFinishLoad;
bool m_sendResourceLoadCallbacks;
bool m_shouldContentSniff;
bool m_shouldBufferData;
bool m_defersLoading;
ResourceRequest m_deferredRequest;
};
}
#endif
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