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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_SMS_SMS_FETCHER_IMPL_H_
#define CONTENT_BROWSER_SMS_SMS_FETCHER_IMPL_H_
#include <memory>
#include <optional>
#include <string>
#include "base/containers/flat_map.h"
#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "base/sequence_checker.h"
#include "base/supports_user_data.h"
#include "content/browser/sms/sms_provider.h"
#include "content/browser/sms/sms_queue.h"
#include "content/common/content_export.h"
#include "content/public/browser/sms_fetcher.h"
#include "url/origin.h"
namespace content {
class SmsProvider;
// SmsFetcherImpls coordinate between local and remote SMS providers as well as
// between multiple origins. There is one SmsFetcherImpl per profile. An
// instance must only be used on the sequence it was created on.
class CONTENT_EXPORT SmsFetcherImpl : public content::SmsFetcher,
public base::SupportsUserData::Data,
public SmsProvider::Observer {
public:
explicit SmsFetcherImpl(SmsProvider* provider);
using FailureType = SmsFetchFailureType;
SmsFetcherImpl(const SmsFetcherImpl&) = delete;
SmsFetcherImpl& operator=(const SmsFetcherImpl&) = delete;
~SmsFetcherImpl() override;
// Called by devices that do not have telephony capabilities and exclusively
// listen for SMSes received on other devices.
void Subscribe(const OriginList& origin_list,
Subscriber& subscriber) override;
// Called by |WebOTPService| to fetch SMSes retrieved by the SmsProvider from
// the requested device.
void Subscribe(const OriginList& origin_list,
Subscriber& subscriber,
RenderFrameHost& rfh) override;
void Unsubscribe(const OriginList& origin_list,
Subscriber* subscriber) override;
// content::SmsProvider::Observer:
bool OnReceive(const OriginList& origin_list,
const std::string& one_time_code,
UserConsent) override;
bool OnFailure(FailureType failure_type) override;
bool HasSubscribers() override;
private:
void OnRemote(std::optional<OriginList>,
std::optional<std::string> one_time_code,
std::optional<FailureType> failure_type);
bool Notify(const OriginList& origin_list,
const std::string& one_time_code,
UserConsent);
// |provider_| is safe because all instances of SmsProvider are owned
// by the BrowserMainLoop, which outlive instances of this class.
const raw_ptr<SmsProvider> provider_;
SmsQueue subscribers_;
// A cancel callback can cancel receiving of the remote fetching response.
// Calling it will run a response callback if it hasn't been executed yet,
// otherwise it will be a no-op. The response callback can clear the sharing
// states including the UI element in the omnibox.
base::flat_map<Subscriber*, base::OnceClosure> remote_cancel_callbacks_;
SEQUENCE_CHECKER(sequence_checker_);
base::WeakPtrFactory<SmsFetcherImpl> weak_ptr_factory_{this};
};
} // namespace content
#endif // CONTENT_BROWSER_SMS_SMS_FETCHER_IMPL_H_
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