Core/AuthServer: Allow reauthentication to the authserver on realm logout. Thanks to .. someone (webmaster?)

Fixes issue 4191.

--HG--
branch : trunk

src/server/authserver/Server/AuthSocket.cpp

@@ -741,6 +741,13 @@ bool AuthSocket::_HandleReconnectChallenge()
         return false;
     }
 
+    // Reinitialize build, expansion and the account securitylevel
+    _build = ch->build;
+    _expversion = (AuthHelper::IsPostBCAcceptedClientBuild(_build) ? POST_BC_EXP_FLAG : NO_VALID_EXP_FLAG) | (AuthHelper::IsPreBCAcceptedClientBuild(_build) ? PRE_BC_EXP_FLAG : NO_VALID_EXP_FLAG);
+
+    uint8 secLevel = fields[2].GetUInt8();
+    _accountSecurityLevel = secLevel <= SEC_ADMINISTRATOR ? AccountTypes(secLevel) : SEC_ADMINISTRATOR;
+
     K.SetHexStr ((*result)[0].GetCString());
 
     // Sending response

src/server/shared/Database/Implementation/LoginDatabase.cpp

@@ -37,7 +37,7 @@ bool LoginDatabaseConnection::Open()
     PrepareStatement(LOGIN_SET_IPAUTOBANNED, "INSERT INTO ip_banned VALUES (?, UNIX_TIMESTAMP(), UNIX_TIMESTAMP()+?,'Trinity realmd', 'Failed login autoban')", true);
     PrepareStatement(LOGIN_GET_ACCBANNED, "SELECT bandate,unbandate FROM account_banned WHERE id = ? AND active = 1");
     PrepareStatement(LOGIN_SET_ACCAUTOBANNED, "INSERT INTO account_banned VALUES (?, UNIX_TIMESTAMP(), UNIX_TIMESTAMP()+?, 'Trinity realmd', 'Failed login autoban', 1)", true);
-    PrepareStatement(LOGIN_GET_SESSIONKEY, "SELECT sessionkey FROM account WHERE username = ?");
+    PrepareStatement(LOGIN_GET_SESSIONKEY, "SELECT a.sessionkey,a.id,aa.gmlevel  FROM account a LEFT JOIN account_access aa ON (a.id = aa.id) WHERE username = ?");
     PrepareStatement(LOGIN_SET_VS, "UPDATE account SET v = ?, s = ? WHERE username = ?", true);
     PrepareStatement(LOGIN_SET_LOGONPROOF, "UPDATE account SET sessionkey = ?, last_ip = ?, last_login = NOW(), locale = ?, failed_logins = 0 WHERE username = ?", true);
     PrepareStatement(LOGIN_GET_LOGONCHALLENGE, "SELECT a.sha_pass_hash,a.id,a.locked,a.last_ip,aa.gmlevel,a.v,a.s FROM account a LEFT JOIN account_access aa ON (a.id = aa.id) WHERE a.username = ?");