Implement DeleteBlacklist functionality and refactor related methods

src/FederationServer/Classes/Enums/Method.php

@@ -9,6 +9,7 @@
     use FederationServer\Methods\Audit\ListAuditLogs;
     use FederationServer\Methods\Audit\ViewAuditEntry;
     use FederationServer\Methods\Blacklist\BlacklistEntity;
+    use FederationServer\Methods\Blacklist\DeleteBlacklist;
     use FederationServer\Methods\Blacklist\ListBlacklist;
     use FederationServer\Methods\Entities\DeleteEntity;
     use FederationServer\Methods\Entities\GetEntityRecord;
@@ -197,7 +198,7 @@
                     BlacklistEntity::handleRequest();
                     break;
                 case self::DELETE_BLACKLIST:
-                    throw new \Exception('To be implemented');
+                    DeleteBlacklist::handleRequest();
                     break;
                 case self::LIFT_BLACKLIST:
                     throw new \Exception('To be implemented');

src/FederationServer/Classes/Managers/BlacklistManager.php

@@ -166,26 +166,26 @@
         /**
          * Deletes a blacklist entry for a specific entity.
          *
-         * @param string $entity The UUID of the entity to remove from the blacklist.
+         * @param string $uuid The UUID of the blacklist entry to delete.
          * @throws InvalidArgumentException If the entity is empty.
          * @throws DatabaseOperationException If there is an error preparing or executing the SQL statement.
          */
-        public static function deleteBlacklistEntry(string $entity): void
+        public static function deleteBlacklistRecord(string $uuid): void
         {
-            if(empty($entity))
+            if(empty($uuid))
             {
-                throw new InvalidArgumentException("Entity cannot be empty.");
+                throw new InvalidArgumentException("UUID cannot be empty.");
             }
 
             try
             {
-                $stmt = DatabaseConnection::getConnection()->prepare("DELETE FROM blacklist WHERE entity = :entity");
-                $stmt->bindParam(':entity', $entity);
+                $stmt = DatabaseConnection::getConnection()->prepare("DELETE FROM blacklist WHERE uuid = :uuid");
+                $stmt->bindParam(':uuid', $uuid);
                 $stmt->execute();
             }
             catch (PDOException $e)
             {
-                throw new DatabaseOperationException("Failed to delete blacklist entry: " . $e->getMessage(), 0, $e);
+                throw new DatabaseOperationException("Failed to delete blacklist record: " . $e->getMessage(), 0, $e);
             }
         }
 

src/FederationServer/Methods/Blacklist/DeleteBlacklist.php

@@ -0,0 +1,54 @@
+<?php
+
+    namespace FederationServer\Methods\Blacklist;
+
+    use FederationServer\Classes\Configuration;
+    use FederationServer\Classes\Managers\BlacklistManager;
+    use FederationServer\Classes\RequestHandler;
+    use FederationServer\Classes\Validate;
+    use FederationServer\Exceptions\DatabaseOperationException;
+    use FederationServer\Exceptions\RequestException;
+    use FederationServer\FederationServer;
+
+    class DeleteBlacklist extends RequestHandler
+    {
+        /**
+         * @inheritDoc
+         */
+        public static function handleRequest(): void
+        {
+            $authenticatedOperator = FederationServer::requireAuthenticatedOperator();
+            if(!$authenticatedOperator->canManageBlacklist())
+            {
+                throw new RequestException('Insufficient permissions to manage the blacklist', 401);
+            }
+
+            if(!preg_match('#^/blacklist/([a-fA-F0-9\-]{36,})$#', FederationServer::getPath(), $matches))
+            {
+                throw new RequestException('Blacklist UUID required', 405);
+            }
+
+            $blacklistUuid = $matches[1];
+            if(!$blacklistUuid || !Validate::uuid($blacklistUuid))
+            {
+                throw new RequestException('Invalid blacklist UUID', 400);
+            }
+
+            try
+            {
+                if(!BlacklistManager::blacklistExists($blacklistUuid))
+                {
+                    throw new RequestException('Blacklist record not found', 404);
+                }
+
+                BlacklistManager::deleteBlacklistRecord($blacklistUuid);
+            }
+            catch (DatabaseOperationException $e)
+            {
+                throw new RequestException('Unable to retrieve blacklist records', 500, $e);
+            }
+
+            self::successResponse();
+        }
+    }
+