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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef STORAGE_BROWSER_BLOB_BLOB_REGISTRY_IMPL_H_
#define STORAGE_BROWSER_BLOB_BLOB_REGISTRY_IMPL_H_
#include <memory>
#include "base/component_export.h"
#include "base/containers/flat_set.h"
#include "base/containers/unique_ptr_adapters.h"
#include "base/functional/callback_forward.h"
#include "components/file_access/scoped_file_access.h"
#include "components/file_access/scoped_file_access_delegate.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
#include "mojo/public/cpp/bindings/self_owned_associated_receiver.h"
#include "third_party/blink/public/mojom/blob/blob_registry.mojom.h"
#include "url/origin.h"
namespace base {
class FilePath;
}
namespace storage {
class BlobBuilderFromStream;
class BlobDataHandle;
class BlobStorageContext;
class COMPONENT_EXPORT(STORAGE_BROWSER) BlobRegistryImpl
: public blink::mojom::BlobRegistry {
public:
// Per binding delegate, used for security checks for requests coming in on
// specific bindings/from specific processes.
class Delegate {
public:
virtual ~Delegate() {}
virtual bool CanReadFile(const base::FilePath& file) = 0;
virtual bool CanAccessDataForOrigin(const url::Origin& origin) = 0;
};
explicit BlobRegistryImpl(base::WeakPtr<BlobStorageContext> context);
BlobRegistryImpl(const BlobRegistryImpl&) = delete;
BlobRegistryImpl& operator=(const BlobRegistryImpl&) = delete;
~BlobRegistryImpl() override;
void Bind(mojo::PendingReceiver<blink::mojom::BlobRegistry> receiver,
std::unique_ptr<Delegate> delegate);
void Register(mojo::PendingReceiver<blink::mojom::Blob> blob,
const std::string& uuid,
const std::string& content_type,
const std::string& content_disposition,
std::vector<blink::mojom::DataElementPtr> elements,
RegisterCallback callback) override;
void RegisterFromStream(
const std::string& content_type,
const std::string& content_disposition,
uint64_t expected_length,
mojo::ScopedDataPipeConsumerHandle data,
mojo::PendingAssociatedRemote<blink::mojom::ProgressClient>
progress_client,
RegisterFromStreamCallback callback) override;
size_t BlobsUnderConstructionForTesting() const {
return blobs_under_construction_.size();
}
size_t BlobsBeingStreamedForTesting() const {
return blobs_being_streamed_.size();
}
BlobStorageContext* context() { return context_.get(); }
private:
class BlobUnderConstruction;
void BlobBuildAborted(const std::string& uuid);
void StreamingBlobDone(RegisterFromStreamCallback callback,
BlobBuilderFromStream* builder,
std::unique_ptr<BlobDataHandle> result);
base::WeakPtr<BlobStorageContext> context_;
mojo::ReceiverSet<blink::mojom::BlobRegistry, std::unique_ptr<Delegate>>
receivers_;
std::map<std::string, std::unique_ptr<BlobUnderConstruction>>
blobs_under_construction_;
base::flat_set<std::unique_ptr<BlobBuilderFromStream>,
base::UniquePtrComparator>
blobs_being_streamed_;
base::WeakPtrFactory<BlobRegistryImpl> weak_ptr_factory_{this};
};
} // namespace storage
#endif // STORAGE_BROWSER_BLOB_BLOB_REGISTRY_IMPL_H_
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