154 lines
4.4 KiB
PHP
154 lines
4.4 KiB
PHP
<?php
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namespace Bluesquare\StorageBundle\Adaptors;
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use Aws\S3\S3Client;
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use Symfony\Component\Config\Definition\Exception\Exception;
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/**
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* Interface de manipulation du stockage S3
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* Usage: $storage = new S3Storage('my_storage_name', $config);
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* @author Maxime Renou
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*/
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class S3Storage
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{
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const MODE_PRIVATE = 'private';
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const MODE_PUBLIC = 'public-read';
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protected $client;
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protected $bucket;
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protected $region;
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public function __construct ($storage_name, $config)
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{
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// TODO: on check la présence de "bucket", "region", "endpoint", "credentials" ("key", "secret") dans $config
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if ($this->configIsNotNormed($config))
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throw new Exception("Error from config file :(");
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// if (isset($config['bucket']) && isset($config))
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$this->config = $config;
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$this->bucket = $config['bucket'];
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$this->client = new S3Client([
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'version' => isset($config['version']) ? $config['version'] : 'latest',
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'region' => $config['region'],
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'endpoint' => $config['endpoint'],
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'credentials' => [
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'key' => $config['credentials']['key'],
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'secret' => $config['credentials']['secret']
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]
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]);
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}
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private function configIsNotNormed($config)
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{
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return (
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isset($config['type']) &&
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isset($config['bucket']) &&
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isset($config['region']) &&
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isset($config['endpoint']) &&
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isset($config['credentials']) &&
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isset($config['credentials']['key']) &&
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isset($config['credentials']['secret'])
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);
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}
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protected function getPrefix($prefix = null)
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{
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$ret = '';
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if (isset($this->config['path'])) {
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$ret = trim($this->config['path'], '/').'/';
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}
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if (!is_null($prefix)) {
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$ret = ltrim($prefix, '/');
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}
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return $ret;
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}
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public function index($prefix = null)
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{
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return ($this->client->listObjectsV2([
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'Bucket' => $this->bucket,
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'Prefix' => $this->getPrefix($prefix)
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]));
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}
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/**
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* Permet d'obtenir l'URL vers une ressource S3
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* Cette ressource n'est accessible que si le fichier a été stocké en mode public
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* @param $target_path
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* @return string
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*/
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public function url ($target_path)
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{
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return rtrim($this->config['endpoint'], '/').'/'.$this->getPrefix().ltrim($target_path, '/');
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}
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/**
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* Permet de stocker un fichier dans S3
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* @param $source_path
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* @param $target_path
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* @param string $permissions
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* @return \Aws\Result
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*/
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public function store ($source_path, $target_path, $permissions = self::MODE_PRIVATE)
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{
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return $this->client->putObject([
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'Bucket' => $this->bucket,
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'Path' => $this->getPrefix().$target_path,
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'Key' => $this->getPrefix().$target_path,
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'Body' => file_get_contents($source_path),
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'ACL' => $permissions
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]);
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}
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/**
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* Permet de récupérer un fichier dans S3 pour le stocker en local
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* @param $distant_path
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* @param $local_path
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*/
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public function retrieve ($distant_path, $local_path)
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{
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$file_stream = fopen($local_path, 'w');
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$aws_stream = $this->client->getObject([
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'Bucket' => $this->bucket,
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'Key' => $this->getPrefix().$distant_path,
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'Path' => $this->getPrefix().$distant_path,
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])->get('Body')->detach();
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stream_copy_to_stream($aws_stream, $file_stream);
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fclose($file_stream);
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}
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/**
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* Permet de stream un fichier stocké dans S3
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* @param $distant_path
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* @param $target_stream
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*/
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public function stream ($distant_path, $target_stream)
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{
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$aws_stream = $this->client->getObject([
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'Bucket' => $this->bucket,
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'Key' => $this->getPrefix().$distant_path,
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'Path' => $this->getPrefix().$distant_path,
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])->get('Body')->detach();
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stream_copy_to_stream($aws_stream, $target_stream);
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}
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/**
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* Permet de supprimer un fichier stocké dans S3
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* @param $distant_path
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*/
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public function delete ($distant_path)
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{
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$this->client->deleteObject([
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'Bucket' => $this->bucket,
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'Path' => $this->getPrefix().$distant_path,
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'Key' => $this->getPrefix().$distant_path,
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]);
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}
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}
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