Core: Implement Role based Access Control

- This system will give more control of actions an account can perform.

System defines:
- Permissions to perform some action
- Roles: a set of permissions that have some relation
- Groups: a set of roles that have some relation

Operations:
- Grant: Assign and allow
- Deny: Assign and do not allow
- Revoke: Remove

Precedence to know if something can be done: Grant, Deny. That means, if you are granted some action by a role but you have denied the permission, the action can not be done.

Some Rules:
- Groups can only have roles
- Roles can only have permissions
- An account can be assigned granted and denied roles. Permissions inherited from roles are granted if roles is granted and denied if roles is denied
- An account can be assigned granted and denied permissions
- An account can have multiple groups, roles and permissions
- An account can not have same role granted and denied at same time
- An acconnt can not have same permission granted and denied at same time
- Id 0 can not be used to define a group, role or permission

Added some permissions as a sample of use (Instant Logout, Skip Queue, Join BGs, Join DF) and some permissions as a workaround to commands till command system is modified to use RBAC

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

@@ -55,7 +55,7 @@ void LoginDatabaseConnection::DoPrepareStatements()
     PrepareStatement(LOGIN_DEL_REALM_CHARACTERS, "DELETE FROM realmcharacters WHERE acctid = ?", CONNECTION_ASYNC);
     PrepareStatement(LOGIN_INS_REALM_CHARACTERS, "INSERT INTO realmcharacters (numchars, acctid, realmid) VALUES (?, ?, ?)", CONNECTION_ASYNC);
     PrepareStatement(LOGIN_SEL_SUM_REALM_CHARACTERS, "SELECT SUM(numchars) FROM realmcharacters WHERE acctid = ?", CONNECTION_ASYNC);
-    PrepareStatement(LOGIN_INS_ACCOUNT, "INSERT INTO account(username, sha_pass_hash, joindate) VALUES(?, ?, NOW())", CONNECTION_ASYNC);
+    PrepareStatement(LOGIN_INS_ACCOUNT, "INSERT INTO account(username, sha_pass_hash, joindate) VALUES(?, ?, NOW())", CONNECTION_SYNCH);
     PrepareStatement(LOGIN_INS_REALM_CHARACTERS_INIT, "INSERT INTO realmcharacters (realmid, acctid, numchars) SELECT realmlist.id, account.id, 0 FROM realmlist, account LEFT JOIN realmcharacters ON acctid=account.id WHERE acctid IS NULL", CONNECTION_ASYNC);
     PrepareStatement(LOGIN_UPD_EXPANSION, "UPDATE account SET expansion = ? WHERE id = ?", CONNECTION_ASYNC);
     PrepareStatement(LOGIN_UPD_ACCOUNT_LOCK, "UPDATE account SET locked = ? WHERE id = ?", CONNECTION_ASYNC);
@@ -87,4 +87,18 @@ void LoginDatabaseConnection::DoPrepareStatements()
     PrepareStatement(LOGIN_SEL_ACCOUNT_WHOIS, "SELECT username, email, last_ip FROM account WHERE id = ?", CONNECTION_SYNCH);
     PrepareStatement(LOGIN_SEL_REALMLIST_SECURITY_LEVEL, "SELECT allowedSecurityLevel from realmlist WHERE id = ?", CONNECTION_SYNCH);
     PrepareStatement(LOGIN_DEL_ACCOUNT, "DELETE FROM account WHERE id = ?", CONNECTION_ASYNC);
+
+    PrepareStatement(LOGIN_SEL_ACCOUNT_ACCESS_BY_ID, "SELECT gmlevel, RealmID FROM account_access WHERE id = ? and (RealmID = ? OR RealmID = -1) ORDER BY gmlevel desc", CONNECTION_SYNCH);
+
+    PrepareStatement(LOGIN_SEL_RBAC_ACCOUNT_GROUPS, "SELECT groupId FROM rbac_account_groups WHERE accountId = ? AND (realmId = ? OR realmId = -1) GROUP BY groupId", CONNECTION_SYNCH);
+    PrepareStatement(LOGIN_INS_RBAC_ACCOUNT_GROUP, "INSERT INTO rbac_account_groups (accountId, groupId, realmId) VALUES (?, ?, ?)", CONNECTION_ASYNC);
+    PrepareStatement(LOGIN_DEL_RBAC_ACCOUNT_GROUP, "DELETE FROM rbac_account_groups WHERE accountId = ? AND groupId = ? AND (realmId = ? OR realmId = -1)", CONNECTION_ASYNC);
+
+    PrepareStatement(LOGIN_SEL_RBAC_ACCOUNT_ROLES, "SELECT roleId, granted FROM rbac_account_roles WHERE accountId = ? AND (realmId = ? OR realmId = -1) ORDER BY roleId, realmId", CONNECTION_SYNCH);
+    PrepareStatement(LOGIN_INS_RBAC_ACCOUNT_ROLE, "INSERT INTO rbac_account_roles (accountId, roleId, granted, realmId) VALUES (?, ?, ?, ?) ON DUPLICATE KEY UPDATE granted = VALUES(granted)", CONNECTION_ASYNC);
+    PrepareStatement(LOGIN_DEL_RBAC_ACCOUNT_ROLE, "DELETE FROM rbac_account_roles WHERE accountId = ? AND roleId = ? AND (realmId = ? OR realmId = -1)", CONNECTION_ASYNC);
+
+    PrepareStatement(LOGIN_SEL_RBAC_ACCOUNT_PERMISSIONS, "SELECT permissionId, granted FROM rbac_account_permissions WHERE accountId = ? AND (realmId = ? OR realmId = -1) ORDER BY permissionId, realmId", CONNECTION_SYNCH);
+    PrepareStatement(LOGIN_INS_RBAC_ACCOUNT_PERMISSION, "INSERT INTO rbac_account_permissions (accountId, permissionId, granted, realmId) VALUES (?, ?, ?, ?) ON DUPLICATE KEY UPDATE granted = VALUES(granted)", CONNECTION_ASYNC);
+    PrepareStatement(LOGIN_DEL_RBAC_ACCOUNT_PERMISSION, "DELETE FROM rbac_account_permissions WHERE accountId = ? AND permissionId = ? AND (realmId = ? OR realmId = -1)", CONNECTION_ASYNC);
 }