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authorAlexander Harkness <bearbin@gmail.com>2013-11-24 15:19:41 +0100
committerAlexander Harkness <bearbin@gmail.com>2013-11-24 15:19:41 +0100
commit675b4aa878f16291ce33fced48a2bc7425f635ae (patch)
tree409914df27a98f65adf866da669429c4de141b6f /src/Authenticator.h
parentLineBlockTracer: Using the coord-based block faces. (diff)
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+
+// cAuthenticator.h
+
+// Interfaces to the cAuthenticator class representing the thread that authenticates users against the official MC server
+// Authentication prevents "hackers" from joining with an arbitrary username (possibly impersonating the server admins)
+// For more info, see http://wiki.vg/Session#Server_operation
+// In MCS, authentication is implemented as a single thread that receives queued auth requests and dispatches them one by one.
+
+
+
+
+
+#pragma once
+#ifndef CAUTHENTICATOR_H_INCLUDED
+#define CAUTHENTICATOR_H_INCLUDED
+
+#include "OSSupport/IsThread.h"
+
+
+
+
+
+// fwd: "cRoot.h"
+class cRoot;
+
+
+
+
+
+class cAuthenticator :
+ public cIsThread
+{
+ typedef cIsThread super;
+
+public:
+ cAuthenticator(void);
+ ~cAuthenticator();
+
+ /// (Re-)read server and address from INI:
+ void ReadINI(cIniFile & IniFile);
+
+ /// Queues a request for authenticating a user. If the auth fails, the user is kicked
+ void Authenticate(int a_ClientID, const AString & a_UserName, const AString & a_ServerHash);
+
+ /// Starts the authenticator thread. The thread may be started and stopped repeatedly
+ void Start(cIniFile & IniFile);
+
+ /// Stops the authenticator thread. The thread may be started and stopped repeatedly
+ void Stop(void);
+
+private:
+
+ class cUser
+ {
+ public:
+ int m_ClientID;
+ AString m_Name;
+ AString m_ServerID;
+
+ cUser(int a_ClientID, const AString & a_Name, const AString & a_ServerID) :
+ m_ClientID(a_ClientID),
+ m_Name(a_Name),
+ m_ServerID(a_ServerID)
+ {
+ }
+ } ;
+
+ typedef std::deque<cUser> cUserList;
+
+ cCriticalSection m_CS;
+ cUserList m_Queue;
+ cEvent m_QueueNonempty;
+
+ AString m_Server;
+ AString m_Address;
+ bool m_ShouldAuthenticate;
+
+ // cIsThread override:
+ virtual void Execute(void) override;
+
+ // Returns true if the user authenticated okay, false on error; iLevel is the recursion deptht (bails out if too deep)
+ bool AuthFromAddress(const AString & a_Server, const AString & a_Address, const AString & a_UserName, int a_Level = 1);
+};
+
+
+
+
+
+#endif // CAUTHENTICATOR_H_INCLUDED
+
+
+
+