misc_pterodactyl-panel/app/Extensions/DynamicDatabaseConnection.php

<?php
/*
 * Pterodactyl - Panel
 * Copyright (c) 2015 - 2017 Dane Everitt <dane@daneeveritt.com>.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

namespace Pterodactyl\Extensions;

use Pterodactyl\Models\DatabaseHost;
use Illuminate\Contracts\Encryption\Encrypter;
use Illuminate\Config\Repository as ConfigRepository;
use Pterodactyl\Contracts\Repository\DatabaseHostRepositoryInterface;

class DynamicDatabaseConnection
{
    const DB_CHARSET = 'utf8';
    const DB_COLLATION = 'utf8_unicode_ci';
    const DB_DRIVER = 'mysql';

    /**
     * @var \Illuminate\Config\Repository
     */
    protected $config;

    /**
     * @var \Illuminate\Contracts\Encryption\Encrypter
     */
    protected $encrypter;

    /**
     * @var \Pterodactyl\Contracts\Repository\DatabaseHostRepositoryInterface
     */
    protected $repository;

    /**
     * DynamicDatabaseConnection constructor.
     *
     * @param \Illuminate\Config\Repository                                     $config
     * @param \Pterodactyl\Contracts\Repository\DatabaseHostRepositoryInterface $repository
     * @param \Illuminate\Contracts\Encryption\Encrypter                        $encrypter
     */
    public function __construct(
        ConfigRepository $config,
        DatabaseHostRepositoryInterface $repository,
        Encrypter $encrypter
    ) {
        $this->config = $config;
        $this->encrypter = $encrypter;
        $this->repository = $repository;
    }

    /**
     * Adds a dynamic database connection entry to the runtime config.
     *
     * @param  string                                $connection
     * @param  \Pterodactyl\Models\DatabaseHost|int  $host
     * @param  string                                $database
     */
    public function set($connection, $host, $database = 'mysql')
    {
        if (! $host instanceof DatabaseHost) {
            $host = $this->repository->find($host);
        }

        $this->config->set('database.connections.' . $connection, [
            'driver' => self::DB_DRIVER,
            'host' => $host->host,
            'port' => $host->port,
            'database' => $database,
            'username' => $host->username,
            'password' => $this->encrypter->decrypt($host->password),
            'charset' => self::DB_CHARSET,
            'collation' => self::DB_COLLATION,
        ]);
    }
}