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// Copyright 2024 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_WEB_PACKAGE_SIGNED_EXCHANGE_INNER_RESPONSE_URL_LOADER_H_
#define CONTENT_BROWSER_WEB_PACKAGE_SIGNED_EXCHANGE_INNER_RESPONSE_URL_LOADER_H_
#include <memory>
#include <optional>
#include <string>
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "content/browser/loader/cross_origin_read_blocking_checker.h"
#include "content/common/content_export.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/system/data_pipe.h"
#include "net/base/net_errors.h"
#include "services/network/public/cpp/orb/orb_api.h"
#include "services/network/public/cpp/resource_request.h"
#include "services/network/public/cpp/url_loader_completion_status.h"
#include "services/network/public/mojom/url_loader.mojom.h"
#include "services/network/public/mojom/url_response_head.mojom.h"
#include "storage/browser/blob/blob_data_handle.h"
namespace content {
// A URLLoader which returns the inner response of signed exchange.
class CONTENT_EXPORT SignedExchangeInnerResponseURLLoader
: public network::mojom::URLLoader {
public:
SignedExchangeInnerResponseURLLoader(
const network::ResourceRequest& request,
network::mojom::URLResponseHeadPtr inner_response,
std::unique_ptr<const storage::BlobDataHandle> blob_data_handle,
const network::URLLoaderCompletionStatus& completion_status,
mojo::PendingRemote<network::mojom::URLLoaderClient> client,
bool is_navigation_request,
scoped_refptr<base::RefCountedData<network::orb::PerFactoryState>>
orb_state);
SignedExchangeInnerResponseURLLoader(
const SignedExchangeInnerResponseURLLoader&) = delete;
SignedExchangeInnerResponseURLLoader& operator=(
const SignedExchangeInnerResponseURLLoader&) = delete;
~SignedExchangeInnerResponseURLLoader() override;
// Helper that is also used by other `URLLoaderFactory` implementations under
// `web_package`.
static void UpdateRequestResponseStartTime(
network::mojom::URLResponseHead* response_head);
private:
static std::optional<std::string> GetHeaderString(
const network::mojom::URLResponseHead& response,
const std::string& header_name);
void OnCrossOriginReadBlockingCheckComplete(
CrossOriginReadBlockingChecker::Result result);
// network::mojom::URLLoader overrides:
void FollowRedirect(
const std::vector<std::string>& removed_headers,
const net::HttpRequestHeaders& modified_headers,
const net::HttpRequestHeaders& modified_cors_exempt_headers,
const std::optional<GURL>& new_url) override;
void SetPriority(net::RequestPriority priority,
int intra_priority_value) override;
void SendResponseBody();
void BlobReaderComplete(net::Error result);
static void CreateMojoBlobReader(
base::WeakPtr<SignedExchangeInnerResponseURLLoader> loader,
mojo::ScopedDataPipeProducerHandle pipe_producer_handle,
std::unique_ptr<storage::BlobDataHandle> blob_data_handle);
static void BlobReaderCompleteOnIO(
base::WeakPtr<SignedExchangeInnerResponseURLLoader> loader,
net::Error result);
network::mojom::URLResponseHeadPtr response_;
std::unique_ptr<const storage::BlobDataHandle> blob_data_handle_;
const network::URLLoaderCompletionStatus completion_status_;
mojo::Remote<network::mojom::URLLoaderClient> client_;
// `orb_checker_` references `orb_state_` so it needs to be destroyed first
// (and therefore `orb_checker_`'s field declaration has to appear last).
scoped_refptr<base::RefCountedData<network::orb::PerFactoryState>> orb_state_;
std::unique_ptr<CrossOriginReadBlockingChecker> orb_checker_;
base::WeakPtrFactory<SignedExchangeInnerResponseURLLoader> weak_factory_{
this};
};
} // namespace content
#endif // CONTENT_BROWSER_WEB_PACKAGE_SIGNED_EXCHANGE_INNER_RESPONSE_URL_LOADER_H_
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