Add GetMe standard method implementation

src/Socialbox/Classes/StandardMethods/GetMe.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace Socialbox\Classes\StandardMethods;
+
+use Socialbox\Abstracts\Method;
+use Socialbox\Classes\Logger;
+use Socialbox\Enums\StandardError;
+use Socialbox\Exceptions\DatabaseOperationException;
+use Socialbox\Exceptions\StandardException;
+use Socialbox\Interfaces\SerializableInterface;
+use Socialbox\Managers\RegisteredPeerManager;
+use Socialbox\Managers\SessionManager;
+use Socialbox\Objects\ClientRequest;
+use Socialbox\Objects\RpcRequest;
+
+class GetMe extends Method
+{
+
+    /**
+     * @inheritDoc
+     */
+    public static function execute(ClientRequest $request, RpcRequest $rpcRequest): ?SerializableInterface
+    {
+        // Check if the request has a Session UUID
+        if($request->getSessionUuid() === null)
+        {
+            return $rpcRequest->produceError(StandardError::SESSION_REQUIRED);
+        }
+
+        try
+        {
+            // Get the session and check if it's already authenticated
+            $session = SessionManager::getSession($request->getSessionUuid());
+            if($session->getAuthenticatedPeerUuid() === null)
+            {
+                return $rpcRequest->produceError(StandardError::AUTHENTICATION_REQUIRED);
+            }
+
+            // Get the peer and return it
+            return $rpcRequest->produceResponse(RegisteredPeerManager::getPeer($session->getAuthenticatedPeerUuid())->toSelfUser());
+        }
+        catch(DatabaseOperationException $e)
+        {
+            throw new StandardException("There was an unexpected error while trying to register", StandardError::INTERNAL_SERVER_ERROR, $e);
+        }
+    }
+}