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<?php
/**
* Main file server container class. Any new adapters defined in Flysystem should be
* added below as a new method named 'init[UCWORDS_SERVER_TYPE]' i.e. 'initFlysystemFtp'
*/
namespace App\Helpers;
use App\Core\Database;
use App\Helpers\FileHelper;
// ftp
use \League\Flysystem\Adapter\Ftp;
// sftp
use \League\Flysystem\Sftp\SftpAdapter;
// aws
use \Aws\S3\S3Client;
use \League\Flysystem\AwsS3v3\AwsS3Adapter;
// rackspace
use \OpenCloud\OpenStack;
use \OpenCloud\Rackspace;
use \League\Flysystem\Rackspace\RackspaceAdapter;
// backblaze
use \Mhetreramesh\Flysystem\BackblazeAdapter;
use \BackblazeB2\Client;
// core flysystem
use \League\Flysystem\Filesystem;
class FileServerContainerHelper
{
/**
* Main function to instantiate the Flysystem adapter.
*
* @param integer $fileServerId
* @return boolean
*/
public static function init($fileServerId) {
// get database connection
$db = Database::getDatabase();
// load the file server details
$fileServer = FileHelper::getServerDetailsById($fileServerId);
if (!$fileServer) {
return false;
}
// figure out the name of the method to call within this class
$serverType = $fileServer['serverType'];
$methodName = 'init' . str_replace(' ', '', ucwords(str_replace('_', ' ', strtolower($serverType))));
// make sure the method exists
if (!method_exists(__CLASS__, $methodName)) {
die('Static method \'' . $methodName . '\' for Flysystem adapter does not exist in: ' . __FILE__ . ', it will need to be added.');
}
// init the adapter
return call_user_func('self::' . $methodName, $fileServer);
}
/**
* Method for instantiating Flysystem FTP connectivity.
*
* @param array $fileServer
* @return Filesystem
*/
public static function initFlysystemFtp($fileServer) {
// prep config
$config = self::_doConfigReplacements($fileServer['serverConfig'], [
'host' => '',
'username' => '',
'password' => '',
'port' => '',
'root' => '',
'passive' => '',
'ssl' => '',
'timeout' => '',
]);
// connect
$adapter = new \League\Flysystem\Adapter\Ftp($config);
return new Filesystem($adapter);
}
/**
* Method for instantiating Flysystem SFTP connectivity.
*
* @param array $fileServer
* @return Filesystem
*/
public static function initFlysystemSftp($fileServer) {
// prep config
$config = self::_doConfigReplacements($fileServer['serverConfig'], [
'host' => '',
'port' => 21,
'username' => '',
'password' => '',
'root' => '/',
'timeout' => 30,
]);
// connect
$adapter = new \League\Flysystem\Sftp\SftpAdapter($config);
return new Filesystem($adapter);
}
/**
* Method for instantiating Flysystem AWS (SDK v3) connectivity.
*
* @param array $fileServer
* @return Filesystem
*/
public static function initFlysystemAws($fileServer) {
// prep config
$config = self::_doConfigReplacements($fileServer['serverConfig'], [
'credentials' => [
'key' => '',
'secret' => ''
],
'region' => '',
'version' => '',
]);
// setup client
$client = new S3Client($config);
// turn the config json into an array
$serverConfigArr = json_decode($fileServer['serverConfig'], true);
// connect
$adapter = new \League\Flysystem\AwsS3v3\AwsS3Adapter($client, $serverConfigArr['bucket']);
return new Filesystem($adapter);
}
/**
* Method for instantiating Flysystem Rackspace Cloud Files connectivity.
*
* @param array $fileServer
* @return Filesystem
*/
public static function initFlysystemRackspace($fileServer) {
// prep config
$config = self::_doConfigReplacements($fileServer['serverConfig'], [
'username' => '',
'apiKey' => '',
]);
// setup client
$client = new Rackspace(Rackspace::US_IDENTITY_ENDPOINT, $config);
// turn the config json into an array
$serverConfigArr = json_decode($fileServer['serverConfig'], true);
// connect
$store = $client->objectStoreService('cloudFiles', $serverConfigArr['region']);
$container = $store->getContainer($serverConfigArr['container']);
return new Filesystem(new \League\Flysystem\Rackspace\RackspaceAdapter($container));
}
/**
* Method for instantiating Flysystem Backblaze Cloud Files connectivity.
*
* @param array $fileServer
* @return Filesystem
*/
public static function initFlysystemBackblazeB2($fileServer) {
// turn the config json into an array
$serverConfigArr = json_decode($fileServer['serverConfig'], true);
// setup the client
$client = new Client($serverConfigArr['account_id'], $serverConfigArr['application_key']);
$adapter = new BackblazeAdapter($client, $serverConfigArr['bucket']);
return new Filesystem($adapter);
}
/**
* Helper for replacing config values for the adapters above.
*
* @param string $serverConfig
* @param array $configTemplate
* @return array
*/
public static function _doConfigReplacements($serverConfig, $configTemplate) {
// turn the config json into an array
$serverConfigArr = json_decode($serverConfig, true);
// loop over the config template and populate the config for this file server
foreach ($configTemplate AS $k => $configTemplateItem) {
// allow for sub-arrays
if (is_array($configTemplateItem)) {
foreach ($configTemplateItem AS $k2 => $configTemplateItem2) {
$configTemplate[$k][$k2] = $serverConfigArr[$k2];
}
}
else {
$configTemplate[$k] = $serverConfigArr[$k];
}
}
return $configTemplate;
}
/**
* Method for instantiating Flysystem Wasabi connectivity
*
* @param array $fileServer
* @return Filesystem
*/
public static function initFlysystemWasabi($fileServer) {
// prep config
$serverConfigArr = json_decode($fileServer['serverConfig'], true);
$config = self::_doConfigReplacements($fileServer['serverConfig'], [
'credentials' => [
'key' => '',
'secret' => ''
],
'region' => '',
'version' => '',
]);
// add hardcoded properties
$config['endpoint'] = 'https://' . $serverConfigArr['bucket'] . '.s3.' . $serverConfigArr['region'] . '.wasabisys.com';
$config['bucket_endpoint'] = true;
$config['version'] = 'latest';
// setup client
$client = new S3Client($config);
// connect
$adapter = new \League\Flysystem\AwsS3v3\AwsS3Adapter($client, $serverConfigArr['bucket'], '/');
return new Filesystem($adapter);
}
}