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/*
* Copyright 2016 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3, as published
* by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Charles Kerr <charles.kerr@canonical.com>
*/
#pragma once
#include <functional>
#include <memory>
#include <string>
#include <core/signal.h>
/**
* Receives public key requests from ADBD and sends a response back.
*
* AdbClient only provides a receive/respond mechanism. The decision
* of what response gets sent is delegated out to a listener via
* the on_pk_request signal.
*
* The decider should connect to on_pk_request, listen for PKRequests,
* and call the request's `respond' method with the desired response.
*/
class AdbdClient
{
public:
virtual ~AdbdClient();
enum class PKResponse { DENY, ALLOW };
struct PKRequest {
std::string public_key;
std::function<void(PKResponse)> respond;
};
virtual core::Signal<const PKRequest&>& on_pk_request() =0;
protected:
AdbdClient() =default;
};
/**
* An AdbdClient designed to work with GLib's event loop.
*
* The on_pk_request() signal will be called in global GMainContext's thread;
* ie, just like a function passed to g_idle_add() or g_timeout_add().
*/
class GAdbdClient: public AdbdClient
{
public:
explicit GAdbdClient(const std::string& socket_path);
~GAdbdClient();
core::Signal<const PKRequest&>& on_pk_request() override;
private:
class Impl;
std::unique_ptr<Impl> impl;
};
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