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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_SYNC_ENGINE_IMPL_ATTACHMENTS_ATTACHMENT_UPLOADER_IMPL_H_
#define COMPONENTS_SYNC_ENGINE_IMPL_ATTACHMENTS_ATTACHMENT_UPLOADER_IMPL_H_
#include <stdint.h>
#include <memory>
#include <string>
#include <unordered_map>
#include "base/macros.h"
#include "base/threading/non_thread_safe.h"
#include "components/sync/base/model_type.h"
#include "components/sync/engine/attachments/attachment_uploader.h"
#include "google_apis/gaia/oauth2_token_service_request.h"
#include "net/url_request/url_request_context_getter.h"
class GURL;
namespace net {
class URLRequestContextGetter;
} // namespace net
namespace syncer {
// An implementation of AttachmentUploader.
class AttachmentUploaderImpl : public AttachmentUploader,
public base::NonThreadSafe {
public:
// |sync_service_url| is the URL of the sync service.
//
// |url_request_context_getter| provides a URLRequestContext.
//
// |account_id| is the account id to use for uploads.
//
// |scopes| is the set of scopes to use for uploads.
//
// |token_service_provider| provides an OAuth2 token service.
//
// |store_birthday| is the raw, sync store birthday.
//
// |model_type| is the model type this uploader is used with.
AttachmentUploaderImpl(
const GURL& sync_service_url,
const scoped_refptr<net::URLRequestContextGetter>&
url_request_context_getter,
const std::string& account_id,
const OAuth2TokenService::ScopeSet& scopes,
const scoped_refptr<OAuth2TokenServiceRequest::TokenServiceProvider>&
token_service_provider,
const std::string& store_birthday,
ModelType model_type);
~AttachmentUploaderImpl() override;
// AttachmentUploader implementation.
void UploadAttachment(const Attachment& attachment,
const UploadCallback& callback) override;
// Return the URL for the given |sync_service_url| and |attachment_id|.
static GURL GetURLForAttachmentId(const GURL& sync_service_url,
const AttachmentId& attachment_id);
// Format crc32c to pass into X-Goog-Hash header.
//
// The value is base64 encoded, big-endian format. Suitable for use in the
// X-Goog-Hash header
// (https://cloud.google.com/storage/docs/reference-headers#xgooghash).
static std::string FormatCrc32cHash(uint32_t crc32c);
// Apply common settings to |fetcher|, suitable for both uploads and
// downloads.
static void ConfigureURLFetcherCommon(
net::URLFetcher* fetcher,
const std::string& auth_token,
const std::string& raw_store_birthday,
ModelType model_type,
net::URLRequestContextGetter* request_context_getter);
private:
class UploadState;
typedef std::string UniqueId;
typedef std::unordered_map<UniqueId, std::unique_ptr<UploadState>> StateMap;
void OnUploadStateStopped(const UniqueId& unique_id);
GURL sync_service_url_;
scoped_refptr<net::URLRequestContextGetter> url_request_context_getter_;
std::string account_id_;
OAuth2TokenService::ScopeSet scopes_;
scoped_refptr<OAuth2TokenServiceRequest::TokenServiceProvider>
token_service_provider_;
std::string raw_store_birthday_;
StateMap state_map_;
ModelType model_type_;
// Must be last data member.
base::WeakPtrFactory<AttachmentUploaderImpl> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(AttachmentUploaderImpl);
};
} // namespace syncer
#endif // COMPONENTS_SYNC_ENGINE_IMPL_ATTACHMENTS_ATTACHMENT_UPLOADER_IMPL_H_
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