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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_URL_LOADER_H_
#define STORAGE_BROWSER_BLOB_BLOB_URL_LOADER_H_
#include <memory>
#include <string>
#include <vector>
#include "base/component_export.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "net/http/http_status_code.h"
#include "services/network/public/cpp/resource_request.h"
#include "services/network/public/mojom/url_loader.mojom.h"
#include "storage/browser/blob/mojo_blob_reader.h"
namespace storage {
class BlobDataHandle;
// This class handles a request for a blob:// url. It self-destructs (directly,
// or after passing ownership to MojoBlobReader at the end of the Start
// method) when it has finished responding.
// Note: some of this code is duplicated from BlobURLRequestJob.
class COMPONENT_EXPORT(STORAGE_BROWSER) BlobURLLoader
: public MojoBlobReader::Delegate,
public network::mojom::URLLoader {
public:
static void CreateAndStart(
mojo::PendingReceiver<network::mojom::URLLoader> url_loader_receiver,
const network::ResourceRequest& request,
mojo::PendingRemote<network::mojom::URLLoaderClient> client,
std::unique_ptr<BlobDataHandle> blob_handle);
static void CreateAndStart(
mojo::PendingReceiver<network::mojom::URLLoader> url_loader_receiver,
const std::string& method,
const net::HttpRequestHeaders& headers,
mojo::PendingRemote<network::mojom::URLLoaderClient> client,
std::unique_ptr<BlobDataHandle> blob_handle);
BlobURLLoader(const BlobURLLoader&) = delete;
BlobURLLoader& operator=(const BlobURLLoader&) = delete;
~BlobURLLoader() override;
private:
BlobURLLoader(
mojo::PendingReceiver<network::mojom::URLLoader> url_loader_receiver,
mojo::PendingRemote<network::mojom::URLLoaderClient> client,
std::unique_ptr<BlobDataHandle> blob_handle);
void Start(const std::string& method, const net::HttpRequestHeaders& headers);
// network::mojom::URLLoader implementation:
void FollowRedirect(
const std::vector<std::string>& removed_headers,
const net::HttpRequestHeaders& modified_request_headers,
const net::HttpRequestHeaders& modified_cors_exempt_request_headers,
const std::optional<GURL>& new_url) override;
void SetPriority(net::RequestPriority priority,
int32_t intra_priority_value) override {}
// MojoBlobReader::Delegate implementation:
RequestSideData DidCalculateSize(uint64_t total_size,
uint64_t content_size) override;
void DidReadSideData(std::optional<mojo_base::BigBuffer> data) override;
void OnComplete(net::Error error_code, uint64_t total_written_bytes) override;
void HeadersCompleted(net::HttpStatusCode status_code,
uint64_t content_size,
std::optional<mojo_base::BigBuffer> metadata);
mojo::Receiver<network::mojom::URLLoader> receiver_;
mojo::Remote<network::mojom::URLLoaderClient> client_;
bool byte_range_set_ = false;
net::HttpByteRange byte_range_;
uint64_t total_size_ = 0;
bool sent_headers_ = false;
std::unique_ptr<BlobDataHandle> blob_handle_;
mojo::ScopedDataPipeProducerHandle response_body_producer_handle_;
mojo::ScopedDataPipeConsumerHandle response_body_consumer_handle_;
base::WeakPtrFactory<BlobURLLoader> weak_factory_{this};
};
} // namespace storage
#endif // STORAGE_BROWSER_BLOB_BLOB_URL_LOADER_H_
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