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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_OMNIBOX_BROWSER_DOCUMENT_SUGGESTIONS_SERVICE_H_
#define COMPONENTS_OMNIBOX_BROWSER_DOCUMENT_SUGGESTIONS_SERVICE_H_
#include <memory>
#include <string>
#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.h"
#include "base/scoped_observation.h"
#include "components/keyed_service/core/keyed_service.h"
#include "components/signin/public/identity_manager/access_token_info.h"
#include "components/signin/public/identity_manager/identity_manager.h"
#include "components/signin/public/identity_manager/tribool.h"
#include "services/network/public/cpp/resource_request.h"
#include "services/network/public/cpp/shared_url_loader_factory.h"
#include "services/network/public/cpp/simple_url_loader.h"
namespace signin {
class PrimaryAccountAccessTokenFetcher;
} // namespace signin
class GoogleServiceAuthError;
// A service to fetch suggestions from a remote endpoint given a URL.
class DocumentSuggestionsService : public KeyedService,
public signin::IdentityManager::Observer {
public:
// null may be passed for params, but no request will be issued.
DocumentSuggestionsService(
signin::IdentityManager* identity_manager,
scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory);
~DocumentSuggestionsService() override;
DocumentSuggestionsService(const DocumentSuggestionsService&) = delete;
DocumentSuggestionsService& operator=(const DocumentSuggestionsService&) =
delete;
using CreationCallback =
base::OnceCallback<void(network::ResourceRequest* request)>;
using StartCallback =
base::OnceCallback<void(std::unique_ptr<network::SimpleURLLoader> loader,
const std::string& request_body)>;
using CompletionCallback =
base::OnceCallback<void(const network::SimpleURLLoader* source,
std::unique_ptr<std::string> response_body)>;
// Returns whether the user's primary account is available.
bool HasPrimaryAccount();
// Creates and starts a document suggestion request for |query|.
// May obtain an OAuth2 token for the signed-in user.
void CreateDocumentSuggestionsRequest(const std::u16string& query,
bool is_incognito,
CreationCallback creation_callback,
StartCallback start_callback,
CompletionCallback completion_callback);
// Stops creating the request. Already created requests aren't affected.
void StopCreatingDocumentSuggestionsRequest();
signin::Tribool account_is_subject_to_enterprise_policies() {
return account_is_subject_to_enterprise_policies_;
}
bool should_backoff() { return should_backoff_; }
void set_should_backoff(bool should_backoff) {
should_backoff_ = should_backoff;
}
private:
// Returns whether Enterprise policies are applied to the primary account -
// aka Dasher account, obtained from the user account capability.
signin::Tribool IsAccountSubjectToEnterprisePolicies();
// Called when an access token request completes (successfully or not).
void AccessTokenAvailable(std::unique_ptr<network::ResourceRequest> request,
std::string request_body,
net::NetworkTrafficAnnotationTag traffic_annotation,
StartCallback start_callback,
CompletionCallback completion_callback,
GoogleServiceAuthError error,
signin::AccessTokenInfo access_token_info);
// Activates a loader for |request|, wiring it up to |completion_callback|,
// and calls |start_callback|. If |request_body| isn't empty, it will be
// attached as upload bytes.
void StartDownloadAndTransferLoader(
std::unique_ptr<network::ResourceRequest> request,
std::string request_body,
net::NetworkTrafficAnnotationTag traffic_annotation,
StartCallback start_callback,
CompletionCallback completion_callback);
// signin::IdentityManager::Observer implementation:
void OnPrimaryAccountChanged(
const signin::PrimaryAccountChangeEvent& event_details) override;
void OnExtendedAccountInfoUpdated(const AccountInfo& info) override;
void OnIdentityManagerShutdown(
signin::IdentityManager* identity_manager) override;
scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory_;
raw_ptr<signin::IdentityManager> identity_manager_;
base::ScopedObservation<signin::IdentityManager, DocumentSuggestionsService>
identity_manager_observation_{this};
// Whether the primary account is a Dasher one. Obtained from the user account
// capability. Updated when primary account signin state or capability change.
signin::Tribool account_is_subject_to_enterprise_policies_;
// Helper for fetching OAuth2 access tokens. Non-null when we have a token
// available, or while a token fetch is in progress.
std::unique_ptr<signin::PrimaryAccountAccessTokenFetcher> token_fetcher_;
// Whether the document provider should stop issuing requests.
bool should_backoff_ = false;
};
#endif // COMPONENTS_OMNIBOX_BROWSER_DOCUMENT_SUGGESTIONS_SERVICE_H_
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