diff --git a/core/core.php b/core/core.php
index d8255433..64b63d56 100644
--- a/core/core.php
+++ b/core/core.php
@@ -14,8 +14,8 @@
  * @link http://zwiicms.com/
  */
 
-class common {
 
+class common {
 	const DISPLAY_RAW = 0;
 	const DISPLAY_JSON = 1;
 	const DISPLAY_LAYOUT_BLANK = 2;
@@ -528,7 +528,22 @@ class common {
 		// 5 premières clés principales
 		// Trois tentatives
 
-	
+		$users = new Flintstone\Flintstone('users', ['dir' => self::DATA_DIR]);
+
+		// Set a key
+$users->set('bob', ['email' => 'bob@site.com', 'password' => '123456']);
+
+// Get a key
+$user = $users->get('bob');
+echo 'Bob, your email is ' . $user['email'];
+
+// Retrieve all key names
+$keys = $users->getKeys(); // returns array('bob')
+
+// Retrieve all data
+$data = $users->getAll(); // returns array('bob' => array('email' => 'bob@site.com', 'password' => '123456'));
+
+
 		for($i = 0; $i < 3; $i++) {
 			if(file_put_contents(self::DATA_DIR.'core.json', json_encode(array_slice($this->getData(),0,5)) , LOCK_EX) !== false) {
 				break;
@@ -657,7 +672,7 @@ class common {
 
 	public function createSitemap($command = "all") {
 
-		require_once "core/vendor/sitemap/SitemapGenerator.php";
+		//require_once "core/vendor/sitemap/SitemapGenerator.php";
 
 		$timezone = $this->getData(['config','timezone']);
 
@@ -738,8 +753,8 @@ class common {
 	 */
 	public function sendMail($to, $subject, $content) {
 		// Utilisation de PHPMailer version 6.0.6
-		require "core/vendor/phpmailer/phpmailer.php";
-		require "core/vendor/phpmailer/exception.php";
+		 require "core/vendor/phpmailer/phpmailer.php";
+		 require "core/vendor/phpmailer/exception.php";
 
 		// Layout
 		ob_start();
@@ -1141,6 +1156,12 @@ class core extends common {
 		elseif(is_readable('core/vendor/' . $classPath)) {
 			require 'core/vendor/' . $classPath;
 		}
+		// Classes personnalisées
+		if (!class_exists('flintstone')) {
+			require 'core/vendor/flintstone/flintstone.php'; }
+
+		if  (!class_exists('sitemapgenerator')) {	
+			require_once "core/vendor/sitemap/SitemapGenerator.php"; }
 	}
 
 	/**
diff --git a/core/vendor/flintstone/flintstone.php b/core/vendor/flintstone/flintstone.php
new file mode 100644
index 00000000..2a96af92
--- /dev/null
+++ b/core/vendor/flintstone/flintstone.php
@@ -0,0 +1,13 @@
+<?php 
+
+require_once "core/vendor/flintstone/src/Cache/ArrayCache.php";
+require_once "core/vendor/flintstone/src/Cache/CacheInterface.php"; 	
+require_once "core/vendor/flintstone/src/Flintstone.php";
+require_once "core/vendor/flintstone/src/Database.php";
+require_once "core/vendor/flintstone/src/Validation.php";
+require_once "core/vendor/flintstone/src/Config.php";
+require_once "core/vendor/flintstone/src/Exception.php";
+require_once "core/vendor/flintstone/src/Line.php";
+require_once "core/vendor/flintstone/src/Formatter/JsonFormatter.php";
+require_once "core/vendor/flintstone/src/Formatter/FormatterInterface.php";
+require_once "core/vendor/flintstone/src/Formatter/SerializeFormatter.php";
diff --git a/core/vendor/flintstone/src/Cache/ArrayCache.php b/core/vendor/flintstone/src/Cache/ArrayCache.php
new file mode 100644
index 00000000..5d2fcdc6
--- /dev/null
+++ b/core/vendor/flintstone/src/Cache/ArrayCache.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace Flintstone\Cache;
+
+class ArrayCache implements CacheInterface
+{
+    /**
+     * Cache data.
+     *
+     * @var array
+     */
+    protected $cache = [];
+
+    /**
+     * {@inheritdoc}
+     */
+    public function contains($key)
+    {
+        return array_key_exists($key, $this->cache);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get($key)
+    {
+        return $this->cache[$key];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function set($key, $data)
+    {
+        $this->cache[$key] = $data;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function delete($key)
+    {
+        unset($this->cache[$key]);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function flush()
+    {
+        $this->cache = [];
+    }
+}
diff --git a/core/vendor/flintstone/src/Cache/CacheInterface.php b/core/vendor/flintstone/src/Cache/CacheInterface.php
new file mode 100644
index 00000000..9459e010
--- /dev/null
+++ b/core/vendor/flintstone/src/Cache/CacheInterface.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace Flintstone\Cache;
+
+interface CacheInterface
+{
+    /**
+     * Check if a key exists in the cache.
+     *
+     * @param string $key
+     *
+     * @return bool
+     */
+    public function contains($key);
+
+    /**
+     * Get a key from the cache.
+     *
+     * @param string $key
+     *
+     * @return mixed
+     */
+    public function get($key);
+
+    /**
+     * Set a key in the cache.
+     *
+     * @param string $key
+     * @param mixed $data
+     */
+    public function set($key, $data);
+
+    /**
+     * Delete a key from the cache.
+     *
+     * @param string $key
+     */
+    public function delete($key);
+
+    /**
+     * Flush the cache.
+     */
+    public function flush();
+}
diff --git a/core/vendor/flintstone/src/Config.php b/core/vendor/flintstone/src/Config.php
new file mode 100644
index 00000000..aa13210f
--- /dev/null
+++ b/core/vendor/flintstone/src/Config.php
@@ -0,0 +1,209 @@
+<?php
+
+namespace Flintstone;
+
+use Flintstone\Cache\ArrayCache;
+use Flintstone\Cache\CacheInterface;
+use Flintstone\Formatter\FormatterInterface;
+use Flintstone\Formatter\SerializeFormatter;
+
+class Config
+{
+    /**
+     * Config.
+     *
+     * @var array
+     */
+    protected $config = [];
+
+    /**
+     * Constructor.
+     *
+     * @param array $config
+     */
+    public function __construct(array $config = [])
+    {
+        $config = $this->normalizeConfig($config);
+        $this->setDir($config['dir']);
+        $this->setExt($config['ext']);
+        $this->setGzip($config['gzip']);
+        $this->setCache($config['cache']);
+        $this->setFormatter($config['formatter']);
+        $this->setSwapMemoryLimit($config['swap_memory_limit']);
+    }
+
+    /**
+     * Normalize the user supplied config.
+     *
+     * @param array $config
+     *
+     * @return array
+     */
+    protected function normalizeConfig(array $config): array
+    {
+        $defaultConfig = [
+            'dir' => getcwd(),
+            'ext' => '.dat',
+            'gzip' => false,
+            'cache' => true,
+            'formatter' => null,
+            'swap_memory_limit' => 2097152, // 2MB
+        ];
+
+        return array_replace($defaultConfig, $config);
+    }
+
+    /**
+     * Get the dir.
+     *
+     * @return string
+     */
+    public function getDir(): string
+    {
+        return $this->config['dir'];
+    }
+
+    /**
+     * Set the dir.
+     *
+     * @param string $dir
+     *
+     * @throws Exception
+     */
+    public function setDir(string $dir)
+    {
+        if (!is_dir($dir)) {
+            throw new Exception('Directory does not exist: ' . $dir);
+        }
+
+        $this->config['dir'] = rtrim($dir, '/\\') . DIRECTORY_SEPARATOR;
+    }
+
+    /**
+     * Get the ext.
+     *
+     * @return string
+     */
+    public function getExt(): string
+    {
+        if ($this->useGzip()) {
+            return $this->config['ext'] . '.gz';
+        }
+
+        return $this->config['ext'];
+    }
+
+    /**
+     * Set the ext.
+     *
+     * @param string $ext
+     */
+    public function setExt(string $ext)
+    {
+        if (substr($ext, 0, 1) !== '.') {
+            $ext = '.' . $ext;
+        }
+
+        $this->config['ext'] = $ext;
+    }
+
+    /**
+     * Use gzip?
+     *
+     * @return bool
+     */
+    public function useGzip(): bool
+    {
+        return $this->config['gzip'];
+    }
+
+    /**
+     * Set gzip.
+     *
+     * @param bool $gzip
+     */
+    public function setGzip(bool $gzip)
+    {
+        $this->config['gzip'] = $gzip;
+    }
+
+    /**
+     * Get the cache.
+     *
+     * @return CacheInterface|false
+     */
+    public function getCache()
+    {
+        return $this->config['cache'];
+    }
+
+    /**
+     * Set the cache.
+     *
+     * @param mixed $cache
+     *
+     * @throws Exception
+     */
+    public function setCache($cache)
+    {
+        if (!is_bool($cache) && !$cache instanceof CacheInterface) {
+            throw new Exception('Cache must be a boolean or an instance of Flintstone\Cache\CacheInterface');
+        }
+
+        if ($cache === true) {
+            $cache = new ArrayCache();
+        }
+
+        $this->config['cache'] = $cache;
+    }
+
+    /**
+     * Get the formatter.
+     *
+     * @return FormatterInterface
+     */
+    public function getFormatter(): FormatterInterface
+    {
+        return $this->config['formatter'];
+    }
+
+    /**
+     * Set the formatter.
+     *
+     * @param FormatterInterface|null $formatter
+     *
+     * @throws Exception
+     */
+    public function setFormatter($formatter)
+    {
+        if ($formatter === null) {
+            $formatter = new SerializeFormatter();
+        }
+
+        if (!$formatter instanceof FormatterInterface) {
+            throw new Exception('Formatter must be an instance of Flintstone\Formatter\FormatterInterface');
+        }
+
+        $this->config['formatter'] = $formatter;
+    }
+
+    /**
+     * Get the swap memory limit.
+     *
+     * @return int
+     */
+    public function getSwapMemoryLimit(): int
+    {
+        return $this->config['swap_memory_limit'];
+    }
+
+    /**
+     * Set the swap memory limit.
+     *
+     * @param int $limit
+     */
+    public function setSwapMemoryLimit(int $limit)
+    {
+        $this->config['swap_memory_limit'] = $limit;
+    }
+}
diff --git a/core/vendor/flintstone/src/Database.php b/core/vendor/flintstone/src/Database.php
new file mode 100644
index 00000000..08deb521
--- /dev/null
+++ b/core/vendor/flintstone/src/Database.php
@@ -0,0 +1,255 @@
+<?php
+
+namespace Flintstone;
+
+use SplFileObject;
+use SplTempFileObject;
+
+class Database
+{
+    /**
+     * File read flag.
+     *
+     * @var int
+     */
+    const FILE_READ = 1;
+
+    /**
+     * File write flag.
+     *
+     * @var int
+     */
+    const FILE_WRITE = 2;
+
+    /**
+     * File append flag.
+     *
+     * @var int
+     */
+    const FILE_APPEND = 3;
+
+    /**
+     * File access mode.
+     *
+     * @var array
+     */
+    protected $fileAccessMode = [
+        self::FILE_READ => [
+            'mode' => 'rb',
+            'operation' => LOCK_SH,
+        ],
+        self::FILE_WRITE => [
+            'mode' => 'wb',
+            'operation' => LOCK_EX,
+        ],
+        self::FILE_APPEND => [
+            'mode' => 'ab',
+            'operation' => LOCK_EX,
+        ],
+    ];
+
+    /**
+     * Database name.
+     *
+     * @var string
+     */
+    protected $name;
+
+    /**
+     * Config class.
+     *
+     * @var Config
+     */
+    protected $config;
+
+    /**
+     * Constructor.
+     *
+     * @param string $name
+     * @param Config|null $config
+     */
+    public function __construct(string $name, Config $config = null)
+    {
+        $this->setName($name);
+
+        if ($config) {
+            $this->setConfig($config);
+        }
+    }
+
+    /**
+     * Get the database name.
+     *
+     * @return string
+     */
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    /**
+     * Set the database name.
+     *
+     * @param string $name
+     *
+     * @throws Exception
+     */
+    public function setName(string $name)
+    {
+        Validation::validateDatabaseName($name);
+        $this->name = $name;
+    }
+
+    /**
+     * Get the config.
+     *
+     * @return Config
+     */
+    public function getConfig(): Config
+    {
+        return $this->config;
+    }
+
+    /**
+     * Set the config.
+     *
+     * @param Config $config
+     */
+    public function setConfig(Config $config)
+    {
+        $this->config = $config;
+    }
+
+    /**
+     * Get the path to the database file.
+     *
+     * @return string
+     */
+    public function getPath(): string
+    {
+        return $this->config->getDir() . $this->getName() . $this->config->getExt();
+    }
+
+    /**
+     * Open the database file.
+     *
+     * @param int $mode
+     *
+     * @throws Exception
+     *
+     * @return SplFileObject
+     */
+    protected function openFile(int $mode): SplFileObject
+    {
+        $path = $this->getPath();
+
+        if (!is_file($path) && !@touch($path)) {
+            throw new Exception('Could not create file: ' . $path);
+        }
+
+        if (!is_readable($path) || !is_writable($path)) {
+            throw new Exception('File does not have permission for read and write: ' . $path);
+        }
+
+        if ($this->getConfig()->useGzip()) {
+            $path = 'compress.zlib://' . $path;
+        }
+
+        $res = $this->fileAccessMode[$mode];
+        $file = new SplFileObject($path, $res['mode']);
+
+        if ($mode === self::FILE_READ) {
+            $file->setFlags(SplFileObject::DROP_NEW_LINE | SplFileObject::SKIP_EMPTY | SplFileObject::READ_AHEAD);
+        }
+
+        if (!$this->getConfig()->useGzip() && !$file->flock($res['operation'])) {
+            $file = null;
+            throw new Exception('Could not lock file: ' . $path);
+        }
+
+        return $file;
+    }
+
+    /**
+     * Open a temporary file.
+     *
+     * @return SplTempFileObject
+     */
+    public function openTempFile(): SplTempFileObject
+    {
+        return new SplTempFileObject($this->getConfig()->getSwapMemoryLimit());
+    }
+
+    /**
+     * Close the database file.
+     *
+     * @param SplFileObject $file
+     *
+     * @throws Exception
+     */
+    protected function closeFile(SplFileObject &$file)
+    {
+        if (!$this->getConfig()->useGzip() && !$file->flock(LOCK_UN)) {
+            $file = null;
+            throw new Exception('Could not unlock file');
+        }
+
+        $file = null;
+    }
+
+    /**
+     * Read lines from the database file.
+     *
+     * @return \Generator
+     */
+    public function readFromFile(): \Generator
+    {
+        $file = $this->openFile(static::FILE_READ);
+
+        try {
+            foreach ($file as $line) {
+                yield new Line($line);
+            }
+        } finally {
+            $this->closeFile($file);
+        }
+    }
+
+    /**
+     * Append a line to the database file.
+     *
+     * @param string $line
+     */
+    public function appendToFile(string $line)
+    {
+        $file = $this->openFile(static::FILE_APPEND);
+        $file->fwrite($line);
+        $this->closeFile($file);
+    }
+
+    /**
+     * Flush the database file.
+     */
+    public function flushFile()
+    {
+        $file = $this->openFile(static::FILE_WRITE);
+        $this->closeFile($file);
+    }
+
+    /**
+     * Write temporary file contents to database file.
+     *
+     * @param SplTempFileObject $tmpFile
+     */
+    public function writeTempToFile(SplTempFileObject &$tmpFile)
+    {
+        $file = $this->openFile(static::FILE_WRITE);
+
+        foreach ($tmpFile as $line) {
+            $file->fwrite($line);
+        }
+
+        $this->closeFile($file);
+        $tmpFile = null;
+    }
+}
diff --git a/core/vendor/flintstone/src/Exception.php b/core/vendor/flintstone/src/Exception.php
new file mode 100644
index 00000000..e7841979
--- /dev/null
+++ b/core/vendor/flintstone/src/Exception.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace Flintstone;
+
+class Exception extends \Exception
+{
+}
diff --git a/core/vendor/flintstone/src/Flintstone.php b/core/vendor/flintstone/src/Flintstone.php
new file mode 100644
index 00000000..e2c21e92
--- /dev/null
+++ b/core/vendor/flintstone/src/Flintstone.php
@@ -0,0 +1,285 @@
+<?php
+
+namespace Flintstone;
+
+class Flintstone
+{
+    /**
+     * Flintstone version.
+     *
+     * @var string
+     */
+    const VERSION = '2.2';
+
+    /**
+     * Database class.
+     *
+     * @var Database
+     */
+    protected $database;
+
+    /**
+     * Config class.
+     *
+     * @var Config
+     */
+    protected $config;
+
+    /**
+     * Constructor.
+     *
+     * @param Database|string $database
+     * @param Config|array $config
+     */
+    public function __construct($database, $config)
+    {
+        if (is_string($database)) {
+            $database = new Database($database);
+        }
+
+        if (is_array($config)) {
+            $config = new Config($config);
+        }
+
+        $this->setDatabase($database);
+        $this->setConfig($config);
+    }
+
+    /**
+     * Get the database.
+     *
+     * @return Database
+     */
+    public function getDatabase(): Database
+    {
+        return $this->database;
+    }
+
+    /**
+     * Set the database.
+     *
+     * @param Database $database
+     */
+    public function setDatabase(Database $database)
+    {
+        $this->database = $database;
+    }
+
+    /**
+     * Get the config.
+     *
+     * @return Config
+     */
+    public function getConfig(): Config
+    {
+        return $this->config;
+    }
+
+    /**
+     * Set the config.
+     *
+     * @param Config $config
+     */
+    public function setConfig(Config $config)
+    {
+        $this->config = $config;
+        $this->getDatabase()->setConfig($config);
+    }
+
+    /**
+     * Get a key from the database.
+     *
+     * @param string $key
+     *
+     * @return mixed
+     */
+    public function get(string $key)
+    {
+        Validation::validateKey($key);
+
+        // Fetch the key from cache
+        if ($cache = $this->getConfig()->getCache()) {
+            if ($cache->contains($key)) {
+                return $cache->get($key);
+            }
+        }
+
+        // Fetch the key from database
+        $file = $this->getDatabase()->readFromFile();
+        $data = false;
+
+        foreach ($file as $line) {
+            /** @var Line $line */
+            if ($line->getKey() == $key) {
+                $data = $this->decodeData($line->getData());
+                break;
+            }
+        }
+
+        // Save the data to cache
+        if ($cache && $data !== false) {
+            $cache->set($key, $data);
+        }
+
+        return $data;
+    }
+
+    /**
+     * Set a key in the database.
+     *
+     * @param string $key
+     * @param mixed $data
+     */
+    public function set(string $key, $data)
+    {
+        Validation::validateKey($key);
+
+        // If the key already exists we need to replace it
+        if ($this->get($key) !== false) {
+            $this->replace($key, $data);
+            return;
+        }
+
+        // Write the key to the database
+        $this->getDatabase()->appendToFile($this->getLineString($key, $data));
+
+        // Delete the key from cache
+        if ($cache = $this->getConfig()->getCache()) {
+            $cache->delete($key);
+        }
+    }
+
+    /**
+     * Delete a key from the database.
+     *
+     * @param string $key
+     */
+    public function delete(string $key)
+    {
+        Validation::validateKey($key);
+
+        if ($this->get($key) !== false) {
+            $this->replace($key, false);
+        }
+    }
+
+    /**
+     * Flush the database.
+     */
+    public function flush()
+    {
+        $this->getDatabase()->flushFile();
+
+        // Flush the cache
+        if ($cache = $this->getConfig()->getCache()) {
+            $cache->flush();
+        }
+    }
+
+    /**
+     * Get all keys from the database.
+     *
+     * @return array
+     */
+    public function getKeys(): array
+    {
+        $keys = [];
+        $file = $this->getDatabase()->readFromFile();
+
+        foreach ($file as $line) {
+            /** @var Line $line */
+            $keys[] = $line->getKey();
+        }
+
+        return $keys;
+    }
+
+    /**
+     * Get all data from the database.
+     *
+     * @return array
+     */
+    public function getAll(): array
+    {
+        $data = [];
+        $file = $this->getDatabase()->readFromFile();
+
+        foreach ($file as $line) {
+            /** @var Line $line */
+            $data[$line->getKey()] = $this->decodeData($line->getData());
+        }
+
+        return $data;
+    }
+
+    /**
+     * Replace a key in the database.
+     *
+     * @param string $key
+     * @param mixed $data
+     */
+    protected function replace(string $key, $data)
+    {
+        // Write a new database to a temporary file
+        $tmpFile = $this->getDatabase()->openTempFile();
+        $file = $this->getDatabase()->readFromFile();
+
+        foreach ($file as $line) {
+            /** @var Line $line */
+            if ($line->getKey() == $key) {
+                if ($data !== false) {
+                    $tmpFile->fwrite($this->getLineString($key, $data));
+                }
+            } else {
+                $tmpFile->fwrite($line->getLine() . "\n");
+            }
+        }
+
+        $tmpFile->rewind();
+
+        // Overwrite the database with the temporary file
+        $this->getDatabase()->writeTempToFile($tmpFile);
+
+        // Delete the key from cache
+        if ($cache = $this->getConfig()->getCache()) {
+            $cache->delete($key);
+        }
+    }
+
+    /**
+     * Get the line string to write.
+     *
+     * @param string $key
+     * @param mixed $data
+     *
+     * @return string
+     */
+    protected function getLineString(string $key, $data): string
+    {
+        return $key . '=' . $this->encodeData($data) . "\n";
+    }
+
+    /**
+     * Decode a string into data.
+     *
+     * @param string $data
+     *
+     * @return mixed
+     */
+    protected function decodeData(string $data)
+    {
+        return $this->getConfig()->getFormatter()->decode($data);
+    }
+
+    /**
+     * Encode data into a string.
+     *
+     * @param mixed $data
+     *
+     * @return string
+     */
+    protected function encodeData($data): string
+    {
+        return $this->getConfig()->getFormatter()->encode($data);
+    }
+}
diff --git a/core/vendor/flintstone/src/Formatter/FormatterInterface.php b/core/vendor/flintstone/src/Formatter/FormatterInterface.php
new file mode 100644
index 00000000..8666dd63
--- /dev/null
+++ b/core/vendor/flintstone/src/Formatter/FormatterInterface.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace Flintstone\Formatter;
+
+interface FormatterInterface
+{
+    /**
+     * Encode data into a string.
+     *
+     * @param mixed $data
+     *
+     * @return string
+     */
+    public function encode($data): string;
+
+    /**
+     * Decode a string into data.
+     *
+     * @param string $data
+     *
+     * @return mixed
+     */
+    public function decode(string $data);
+}
diff --git a/core/vendor/flintstone/src/Formatter/JsonFormatter.php b/core/vendor/flintstone/src/Formatter/JsonFormatter.php
new file mode 100644
index 00000000..c94abb23
--- /dev/null
+++ b/core/vendor/flintstone/src/Formatter/JsonFormatter.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace Flintstone\Formatter;
+
+use Flintstone\Exception;
+
+class JsonFormatter implements FormatterInterface
+{
+    /**
+     * @var bool
+     */
+    private $assoc;
+
+    public function __construct(bool $assoc = true)
+    {
+        $this->assoc = $assoc;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function encode($data): string
+    {
+        $result = json_encode($data);
+
+        if (json_last_error() === JSON_ERROR_NONE) {
+            return $result;
+        }
+
+        throw new Exception(json_last_error_msg());
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function decode(string $data)
+    {
+        $result = json_decode($data, $this->assoc);
+
+        if (json_last_error() === JSON_ERROR_NONE) {
+            return $result;
+        }
+
+        throw new Exception(json_last_error_msg());
+    }
+}
diff --git a/core/vendor/flintstone/src/Formatter/SerializeFormatter.php b/core/vendor/flintstone/src/Formatter/SerializeFormatter.php
new file mode 100644
index 00000000..c16087ec
--- /dev/null
+++ b/core/vendor/flintstone/src/Formatter/SerializeFormatter.php
@@ -0,0 +1,52 @@
+<?php
+
+namespace Flintstone\Formatter;
+
+class SerializeFormatter implements FormatterInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function encode($data): string
+    {
+        return serialize($this->preserveLines($data, false));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function decode(string $data)
+    {
+        return $this->preserveLines(unserialize($data), true);
+    }
+
+    /**
+     * Preserve new lines, recursive function.
+     *
+     * @param mixed $data
+     * @param bool $reverse
+     *
+     * @return mixed
+     */
+    protected function preserveLines($data, bool $reverse)
+    {
+        $search = ["\n", "\r"];
+        $replace = ['\\n', '\\r'];
+
+        if ($reverse) {
+            $search = ['\\n', '\\r'];
+            $replace = ["\n", "\r"];
+        }
+
+        if (is_string($data)) {
+            $data = str_replace($search, $replace, $data);
+        } elseif (is_array($data)) {
+            foreach ($data as &$value) {
+                $value = $this->preserveLines($value, $reverse);
+            }
+            unset($value);
+        }
+
+        return $data;
+    }
+}
diff --git a/core/vendor/flintstone/src/Line.php b/core/vendor/flintstone/src/Line.php
new file mode 100644
index 00000000..c9f52e03
--- /dev/null
+++ b/core/vendor/flintstone/src/Line.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace Flintstone;
+
+class Line
+{
+    /**
+     * @var string
+     */
+    protected $line;
+
+    /**
+     * @var array
+     */
+    protected $pieces = [];
+
+    public function __construct(string $line)
+    {
+        $this->line = $line;
+        $this->pieces = explode('=', $line, 2);
+    }
+
+    public function getLine(): string
+    {
+        return $this->line;
+    }
+
+    public function getKey(): string
+    {
+        return $this->pieces[0];
+    }
+
+    public function getData(): string
+    {
+        return $this->pieces[1];
+    }
+}
diff --git a/core/vendor/flintstone/src/Validation.php b/core/vendor/flintstone/src/Validation.php
new file mode 100644
index 00000000..29e901e5
--- /dev/null
+++ b/core/vendor/flintstone/src/Validation.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Flintstone;
+
+class Validation
+{
+    /**
+     * Validate the key.
+     *
+     * @param string $key
+     *
+     * @throws Exception
+     */
+    public static function validateKey(string $key)
+    {
+        if (empty($key) || !preg_match('/^[\w-]+$/', $key)) {
+            throw new Exception('Invalid characters in key');
+        }
+    }
+
+    /**
+     * Check the database name is valid.
+     *
+     * @param string $name
+     *
+     * @throws Exception
+     */
+    public static function validateDatabaseName(string $name)
+    {
+        if (empty($name) || !preg_match('/^[\w-]+$/', $name)) {
+            throw new Exception('Invalid characters in database name');
+        }
+    }
+}