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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_WEB_PACKAGE_PREFETCHED_SIGNED_EXCHANGE_CACHE_ADAPTER_H_
#define CONTENT_BROWSER_WEB_PACKAGE_PREFETCHED_SIGNED_EXCHANGE_CACHE_ADAPTER_H_
#include "base/memory/raw_ptr.h"
#include "content/browser/web_package/prefetched_signed_exchange_cache.h"
#include "content/public/browser/browser_context.h"
#include "mojo/public/cpp/system/data_pipe.h"
class GURL;
namespace storage {
class BlobBuilderFromStream;
class BlobDataHandle;
} // namespace storage
namespace content {
class PrefetchURLLoader;
// This class is used by PrefetchURLLoader to store the prefetched and verified
// signed exchanges to the PrefetchedSignedExchangeCache.
class PrefetchedSignedExchangeCacheAdapter {
public:
PrefetchedSignedExchangeCacheAdapter(
scoped_refptr<PrefetchedSignedExchangeCache>
prefetched_signed_exchange_cache,
BrowserContext::BlobContextGetter blob_context_getter,
const GURL& request_url,
PrefetchURLLoader* prefetch_url_loader);
PrefetchedSignedExchangeCacheAdapter(
const PrefetchedSignedExchangeCacheAdapter&) = delete;
PrefetchedSignedExchangeCacheAdapter& operator=(
const PrefetchedSignedExchangeCacheAdapter&) = delete;
~PrefetchedSignedExchangeCacheAdapter();
void OnReceiveSignedExchange(
std::unique_ptr<PrefetchedSignedExchangeCacheEntry> entry);
void OnStartLoadingResponseBody(mojo::ScopedDataPipeConsumerHandle body);
void OnComplete(const network::URLLoaderCompletionStatus& status);
private:
void StreamingBlobDone(storage::BlobBuilderFromStream* builder,
std::unique_ptr<storage::BlobDataHandle> result);
void MaybeCallOnSignedExchangeStored();
// Creates and starts the blob builder.
static std::unique_ptr<storage::BlobBuilderFromStream>
CreateBlobBuilderFromStream(
base::WeakPtr<PrefetchedSignedExchangeCacheAdapter> adapter,
mojo::ScopedDataPipeConsumerHandle body,
uint64_t length_hint,
BrowserContext::BlobContextGetter blob_context_getter);
// Sets |blob_builder_from_stream| on |adapter|. If |adapter| is no longer
// valid, aborts the blob builder.
static void SetBlobBuilderFromStream(
base::WeakPtr<PrefetchedSignedExchangeCacheAdapter> adapter,
std::unique_ptr<storage::BlobBuilderFromStream> blob_builder_from_stream);
// Calls StreamingBlobDone() on the correct thread.
static void StreamingBlobDoneOnIO(
base::WeakPtr<PrefetchedSignedExchangeCacheAdapter> adapter,
storage::BlobBuilderFromStream* builder,
std::unique_ptr<storage::BlobDataHandle> result);
// Holds the prefetched signed exchanges which will be used in the next
// navigation. This is shared with RenderFrameHostImpl that created this.
const scoped_refptr<PrefetchedSignedExchangeCache>
prefetched_signed_exchange_cache_;
// Used to create a BlobDataHandle from a DataPipe of signed exchange's inner
// response body to store to |prefetched_signed_exchange_cache_|.
BrowserContext::BlobContextGetter blob_context_getter_;
// A temporary entry of PrefetchedSignedExchangeCache, which will be stored
// to |prefetched_signed_exchange_cache_|.
std::unique_ptr<PrefetchedSignedExchangeCacheEntry> cached_exchange_;
// Used to create a BlobDataHandle from a DataPipe of signed exchange's inner
// response body. This should only be accessed on the IO thread.
std::unique_ptr<storage::BlobBuilderFromStream> blob_builder_from_stream_;
bool blob_is_streaming_ = false;
// |prefetch_url_loader_| owns |this|.
raw_ptr<PrefetchURLLoader> prefetch_url_loader_;
base::WeakPtrFactory<PrefetchedSignedExchangeCacheAdapter> weak_factory_{
this};
};
} // namespace content
#endif // CONTENT_BROWSER_WEB_PACKAGE_PREFETCHED_SIGNED_EXCHANGE_CACHE_ADAPTER_H_
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