Add methods for deleting and updating peer information

src/Socialbox/Classes/StandardMethods/SettingsDeleteDisplayName.php

@@ -0,0 +1,39 @@
+<?php
+
+    namespace Socialbox\Classes\StandardMethods;
+
+    use Exception;
+    use Socialbox\Abstracts\Method;
+    use Socialbox\Classes\Configuration;
+    use Socialbox\Enums\StandardError;
+    use Socialbox\Exceptions\StandardException;
+    use Socialbox\Interfaces\SerializableInterface;
+    use Socialbox\Managers\RegisteredPeerManager;
+    use Socialbox\Objects\ClientRequest;
+    use Socialbox\Objects\RpcRequest;
+
+    class SettingsDeleteDisplayName extends Method
+    {
+        /**
+         * @inheritDoc
+         */
+        public static function execute(ClientRequest $request, RpcRequest $rpcRequest): ?SerializableInterface
+        {
+            if(Configuration::getRegistrationConfiguration()->isDisplayNameRequired())
+            {
+                return $rpcRequest->produceError(StandardError::FORBIDDEN, 'A display name is required for this server');
+            }
+
+            try
+            {
+                // Set the password
+                RegisteredPeerManager::deleteDisplayName($request->getPeer());
+            }
+            catch(Exception $e)
+            {
+                throw new StandardException('Failed to set password due to an internal exception', StandardError::INTERNAL_SERVER_ERROR, $e);
+            }
+
+            return $rpcRequest->produceResponse(true);
+        }
+    }

src/Socialbox/Classes/Validator.php

@@ -34,4 +34,14 @@ class Validator
         return preg_match(self::USERNAME_PATTERN, $username) === 1;
     }
 
+    /**
+     * Validates whether a given phone number conforms to the required format.
+     *
+     * @param string $phoneNumber The phone number to validate. Must start with a "+" followed by 1 to 15 digits.
+     * @return bool Returns true if the phone number is valid according to the format, otherwise false.
+     */
+    public static function validatePhoneNumber(string $phoneNumber): bool
+    {
+        return preg_match("/^\+[0-9]{1,15}$/", $phoneNumber) === 1;
+    }
 }