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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_LOADER_CROSS_ORIGIN_READ_BLOCKING_CHECKER_H_
#define CONTENT_BROWSER_LOADER_CROSS_ORIGIN_READ_BLOCKING_CHECKER_H_
#include "base/functional/callback.h"
#include "base/memory/weak_ptr.h"
#include "net/base/net_errors.h"
#include "services/network/public/cpp/orb/orb_api.h"
#include "services/network/public/mojom/url_response_head.mojom-forward.h"
namespace net {
class IOBufferWithSize;
} // namespace net
namespace network {
struct ResourceRequest;
} // namespace network
namespace storage {
class BlobDataHandle;
} // namespace storage
namespace content {
// This class checks whether we should block the response or not using ORB
// (Opaque Response Blocking).
class CrossOriginReadBlockingChecker {
public:
enum class Result {
kAllowed,
kBlocked_ShouldReport,
kBlocked_ShouldNotReport,
kNetError
};
// The caller needs to guarantee that `orb_state`'s lifetime is at least as
// long as the lifetime of `CrossOriginReadBlockingChecker`. `orb_state`
// needs to be non-null.
CrossOriginReadBlockingChecker(
const network::ResourceRequest& request,
const network::mojom::URLResponseHead& response,
const storage::BlobDataHandle& blob_data_handle,
network::orb::PerFactoryState* orb_state,
base::OnceCallback<void(Result)> callback);
CrossOriginReadBlockingChecker(const CrossOriginReadBlockingChecker&) =
delete;
CrossOriginReadBlockingChecker& operator=(
const CrossOriginReadBlockingChecker&) = delete;
~CrossOriginReadBlockingChecker();
int GetNetError();
private:
class BlobIOState;
void OnAllowed();
void OnBlocked();
void OnNetError(int net_error);
void OnReadComplete(int bytes_read,
scoped_refptr<net::IOBufferWithSize> buffer,
int net_error);
base::OnceCallback<void(Result)> callback_;
std::unique_ptr<network::orb::ResponseAnalyzer> orb_analyzer_;
std::unique_ptr<BlobIOState> blob_io_state_;
int net_error_ = net::OK;
base::WeakPtrFactory<CrossOriginReadBlockingChecker> weak_factory_{this};
};
} // namespace content
#endif // CONTENT_BROWSER_LOADER_CROSS_ORIGIN_READ_BLOCKING_CHECKER_H_
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