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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_SUBRESOURCE_FILTER_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_SUBRESOURCE_FILTER_H_
#include <memory>
#include <utility>
#include "third_party/blink/public/platform/web_document_subresource_filter.h"
#include "third_party/blink/public/platform/web_url_request.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/weborigin/kurl.h"
#include "third_party/blink/renderer/platform/weborigin/security_violation_reporting_policy.h"
namespace blink {
class ExecutionContext;
class KURL;
// Wrapper around a WebDocumentSubresourceFilter. This class will make it easier
// to extend the subresource filter with optimizations only possible using blink
// types (e.g. a caching layer using StringImpl).
class CORE_EXPORT SubresourceFilter final
: public GarbageCollectedFinalized<SubresourceFilter> {
public:
static SubresourceFilter* Create(
ExecutionContext&,
std::unique_ptr<WebDocumentSubresourceFilter>);
~SubresourceFilter();
bool AllowLoad(const KURL& resource_url,
mojom::RequestContextType,
SecurityViolationReportingPolicy);
bool AllowWebSocketConnection(const KURL&);
// Returns if |resource_url| is an ad resource.
bool IsAdResource(const KURL& resource_url, mojom::RequestContextType);
// Reports the resource request id as an ad to the |subresource_filter_|.
void ReportAdRequestId(int request_id);
virtual void Trace(blink::Visitor*);
private:
SubresourceFilter(ExecutionContext*,
std::unique_ptr<WebDocumentSubresourceFilter>);
void ReportLoad(const KURL& resource_url,
WebDocumentSubresourceFilter::LoadPolicy);
Member<ExecutionContext> execution_context_;
std::unique_ptr<WebDocumentSubresourceFilter> subresource_filter_;
// Save the last resource check's result in the single element cache.
std::pair<std::pair<KURL, mojom::RequestContextType>,
WebDocumentSubresourceFilter::LoadPolicy>
last_resource_check_result_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_SUBRESOURCE_FILTER_H_
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