Authenticator.h

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// cAuthenticator.h
 
// Interfaces to the cAuthenticator class representing the thread that authenticates users against the official Mojang servers
// Authentication prevents "hackers" from joining with an arbitrary username (possibly impersonating the server admins)
// For more info, see http://wiki.vg/Session
// In Cuberite, authentication is implemented as a single thread that receives queued auth requests and dispatches them one by one.
 
 
 
 
 
#pragma once
 
#include "../OSSupport/IsThread.h"
 
// fwd:
class cUUID;
class cSettingsRepositoryInterface;
 
namespace Json
{
    class Value;
}
 
 
 
 
 
class cAuthenticator:
    public cIsThread
{
    using Super = cIsThread;
 
public:
 
    cAuthenticator();
    virtual ~cAuthenticator() override;
 
    void ReadSettings(cSettingsRepositoryInterface & a_Settings);
 
    void Authenticate(int a_ClientID, std::string_view a_Username, std::string_view a_ServerHash);
 
    void Start(cSettingsRepositoryInterface & a_Settings);
 
    void Stop(void);
 
private:
 
    class cUser
    {
    public:
        int     m_ClientID;
        AString m_Name;
        AString m_ServerID;
 
        cUser(int a_ClientID, const std::string_view a_Name, const std::string_view a_ServerID) :
            m_ClientID(a_ClientID),
            m_Name(a_Name),
            m_ServerID(a_ServerID)
        {
        }
    };
 
    using cUserList = std::deque<cUser>;
 
    cCriticalSection m_CS;
    cUserList        m_Queue;
    cEvent           m_QueueNonempty;
 
    AString m_Server;
 
    AString m_Address;
 
    AString m_PropertiesAddress;
    bool    m_ShouldAuthenticate;
 
    virtual void Execute(void) override;
 
    bool AuthWithYggdrasil(AString & a_UserName, const AString & a_ServerId, cUUID & a_UUID, Json::Value & a_Properties) const;
};