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/*
* Copyright (C) 2006-2018 Apple Inc. All rights reserved.
* Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
*
* 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 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.
*/
#pragma once
#include "FrameLoader.h"
#include "LocalFrameLoaderClient.h"
#include "ResourceRequest.h"
#include <wtf/WeakPtr.h>
#include <wtf/text/WTFString.h>
#if ENABLE(CONTENT_FILTERING)
#include "ContentFilterUnblockHandler.h"
#endif
namespace WebCore {
class PolicyChecker;
}
namespace WTF {
template<typename T> struct IsDeprecatedWeakRefSmartPointerException;
template<> struct IsDeprecatedWeakRefSmartPointerException<WebCore::PolicyChecker> : std::true_type { };
}
namespace WTF {
template<typename> class CompletionHandler;
class CompletionHandlerCallingScope;
}
namespace WebCore {
class DocumentLoader;
class FormState;
class HitTestResult;
class LocalFrame;
class NavigationAction;
class ResourceError;
class ResourceResponse;
class URLKeepingBlobAlive;
enum class NavigationPolicyDecision : uint8_t {
ContinueLoad,
IgnoreLoad,
LoadWillContinueInAnotherProcess,
};
enum class PolicyDecisionMode { Synchronous, Asynchronous };
class PolicyChecker : public CanMakeWeakPtr<PolicyChecker> {
WTF_MAKE_NONCOPYABLE(PolicyChecker);
WTF_MAKE_FAST_ALLOCATED_WITH_HEAP_IDENTIFIER(Loader);
public:
explicit PolicyChecker(LocalFrame&);
using NavigationPolicyDecisionFunction = CompletionHandler<void(ResourceRequest&&, WeakPtr<FormState>&&, NavigationPolicyDecision)>;
using NewWindowPolicyDecisionFunction = CompletionHandler<void(const ResourceRequest&, WeakPtr<FormState>&&, const AtomString& frameName, const NavigationAction&, ShouldContinuePolicyCheck)>;
void checkNavigationPolicy(ResourceRequest&&, const ResourceResponse& redirectResponse, DocumentLoader*, RefPtr<FormState>&&, NavigationPolicyDecisionFunction&&, PolicyDecisionMode = PolicyDecisionMode::Asynchronous);
void checkNavigationPolicy(ResourceRequest&&, const ResourceResponse& redirectResponse, NavigationPolicyDecisionFunction&&);
void checkNewWindowPolicy(NavigationAction&&, ResourceRequest&&, RefPtr<FormState>&&, const AtomString& frameName, NewWindowPolicyDecisionFunction&&);
void stopCheck();
void cannotShowMIMEType(const ResourceResponse&);
FrameLoadType loadType() const { return m_loadType; }
void setLoadType(FrameLoadType loadType) { m_loadType = loadType; }
bool delegateIsDecidingNavigationPolicy() const { return m_delegateIsDecidingNavigationPolicy; }
bool delegateIsHandlingUnimplementablePolicy() const { return m_delegateIsHandlingUnimplementablePolicy; }
#if ENABLE(CONTENT_FILTERING)
void setContentFilterUnblockHandler(ContentFilterUnblockHandler unblockHandler) { m_contentFilterUnblockHandler = WTFMove(unblockHandler); }
#endif
private:
void handleUnimplementablePolicy(const ResourceError&);
URLKeepingBlobAlive extendBlobURLLifetimeIfNecessary(const ResourceRequest&, const Document&, PolicyDecisionMode = PolicyDecisionMode::Asynchronous) const;
std::optional<HitTestResult> hitTestResult(const NavigationAction&);
Ref<LocalFrame> protectedFrame() const;
WeakRef<LocalFrame> m_frame;
uint64_t m_javaScriptURLPolicyCheckIdentifier { 0 };
bool m_delegateIsDecidingNavigationPolicy;
bool m_delegateIsHandlingUnimplementablePolicy;
// This identifies the type of navigation action which prompted this load. Note
// that WebKit conveys this value as the WebActionNavigationTypeKey value
// on navigation action delegate callbacks.
FrameLoadType m_loadType;
#if ENABLE(CONTENT_FILTERING)
ContentFilterUnblockHandler m_contentFilterUnblockHandler;
#endif
};
} // namespace WebCore
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