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/*
* Copyright (C) 2012, 2015 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. 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 INC. 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.
*/
#pragma once
#include "FetchOptions.h"
#include "LoadSchedulingMode.h"
#include "PageIdentifier.h"
#include "ResourceLoadPriority.h"
#include "ResourceLoaderIdentifier.h"
#include "ResourceLoaderOptions.h"
#include "StoredCredentialsPolicy.h"
#include <wtf/Forward.h>
namespace WebCore {
class CachedResource;
class ContentSecurityPolicy;
class FrameLoader;
class HTTPHeaderMap;
class LocalFrame;
class NetscapePlugInStreamLoader;
class NetscapePlugInStreamLoaderClient;
struct NetworkTransactionInformation;
class NetworkLoadMetrics;
class Page;
class ResourceError;
class ResourceLoader;
class ResourceRequest;
class ResourceResponse;
class SecurityOrigin;
class FragmentedSharedBuffer;
class SubresourceLoader;
struct FetchOptions;
class WEBCORE_EXPORT LoaderStrategy {
public:
virtual void loadResource(LocalFrame&, CachedResource&, ResourceRequest&&, const ResourceLoaderOptions&, CompletionHandler<void(RefPtr<SubresourceLoader>&&)>&&) = 0;
virtual void loadResourceSynchronously(FrameLoader&, ResourceLoaderIdentifier, const ResourceRequest&, ClientCredentialPolicy, const FetchOptions&, const HTTPHeaderMap&, ResourceError&, ResourceResponse&, Vector<uint8_t>& data) = 0;
virtual void pageLoadCompleted(Page&) = 0;
virtual void browsingContextRemoved(LocalFrame&) = 0;
virtual void remove(ResourceLoader*) = 0;
virtual void setDefersLoading(ResourceLoader&, bool) = 0;
virtual void crossOriginRedirectReceived(ResourceLoader*, const URL& redirectURL) = 0;
virtual void servePendingRequests(ResourceLoadPriority minimumPriority = ResourceLoadPriority::VeryLow) = 0;
virtual void suspendPendingRequests() = 0;
virtual void resumePendingRequests() = 0;
virtual void setResourceLoadSchedulingMode(Page&, LoadSchedulingMode);
virtual void prioritizeResourceLoads(const Vector<SubresourceLoader*>&);
virtual bool usePingLoad() const { return true; }
using PingLoadCompletionHandler = Function<void(const ResourceError&, const ResourceResponse&)>;
virtual void startPingLoad(LocalFrame&, ResourceRequest&, const HTTPHeaderMap& originalRequestHeaders, const FetchOptions&, ContentSecurityPolicyImposition, PingLoadCompletionHandler&& = { }) = 0;
using PreconnectCompletionHandler = Function<void(const ResourceError&)>;
enum class ShouldPreconnectAsFirstParty : bool { No, Yes };
virtual void preconnectTo(FrameLoader&, ResourceRequest&&, StoredCredentialsPolicy, ShouldPreconnectAsFirstParty, PreconnectCompletionHandler&&) = 0;
virtual void setCaptureExtraNetworkLoadMetricsEnabled(bool) = 0;
virtual bool isOnLine() const = 0;
virtual void addOnlineStateChangeListener(Function<void(bool)>&&) = 0;
virtual bool shouldPerformSecurityChecks() const { return false; }
virtual bool havePerformedSecurityChecks(const ResourceResponse&) const { return false; }
virtual ResourceResponse responseFromResourceLoadIdentifier(ResourceLoaderIdentifier);
virtual Vector<NetworkTransactionInformation> intermediateLoadInformationFromResourceLoadIdentifier(ResourceLoaderIdentifier);
virtual NetworkLoadMetrics networkMetricsFromResourceLoadIdentifier(ResourceLoaderIdentifier);
virtual void isResourceLoadFinished(CachedResource&, CompletionHandler<void(bool)>&& callback) = 0;
// Used for testing only.
virtual Vector<ResourceLoaderIdentifier> ongoingLoads() const { return { }; }
virtual ResourceError cancelledError(const ResourceRequest&) const = 0;
virtual ResourceError blockedError(const ResourceRequest&) const = 0;
virtual ResourceError blockedByContentBlockerError(const ResourceRequest&) const = 0;
virtual ResourceError cannotShowURLError(const ResourceRequest&) const = 0;
virtual ResourceError interruptedForPolicyChangeError(const ResourceRequest&) const = 0;
#if ENABLE(CONTENT_FILTERING)
virtual ResourceError blockedByContentFilterError(const ResourceRequest&) const = 0;
#endif
virtual ResourceError cannotShowMIMETypeError(const ResourceResponse&) const = 0;
virtual ResourceError fileDoesNotExistError(const ResourceResponse&) const = 0;
virtual ResourceError httpsUpgradeRedirectLoopError(const ResourceRequest&) const = 0;
virtual ResourceError httpNavigationWithHTTPSOnlyError(const ResourceRequest&) const = 0;
virtual ResourceError pluginWillHandleLoadError(const ResourceResponse&) const = 0;
protected:
virtual ~LoaderStrategy();
};
} // namespace WebCore
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