Added S3 adapter

composer.json

@@ -22,7 +22,8 @@
         "symfony/filesystem": "^4.0",
         "symfony/finder": "^4.0",
         "symfony/validator": "^4.0",
-        "zendframework/zend-stdlib": "^3.1"
+        "zendframework/zend-stdlib": "^3.1",
+        "league/flysystem-aws-s3-v3": "^1.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^7.1",

src/Container.php

@@ -32,6 +32,7 @@
 use Storeman\OperationListBuilder\StandardOperationListBuilder;
 use Storeman\StorageAdapter\Ftp;
 use Storeman\StorageAdapter\Local;
+use Storeman\StorageAdapter\S3;
 use Storeman\StorageAdapter\StorageAdapterInterface;
 use Storeman\Validation\Constraints\ExistingServiceValidator;
 use Storeman\VaultLayout\Amberjack\AmberjackVaultLayout;
@@ -124,6 +125,7 @@ public function __construct()
         $this->registerVaultServiceFactory('storageAdapter', 'adapter');
         $this->addStorageAdapter('ftp', Ftp::class)->withArgument('vaultConfiguration');
         $this->addStorageAdapter('local', Local::class)->withArgument('vaultConfiguration');
+        $this->addStorageAdapter('s3', S3::class)->withArgument('vaultConfiguration');
 
         $this->registerVaultServiceFactory('vaultLayout');
         $this->addVaultLayout('amberjack', AmberjackVaultLayout::class)->withArguments(['storageAdapter']);

src/StorageAdapter/S3.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace Storeman\StorageAdapter;
+
+use Aws\S3\S3Client;
+use League\Flysystem\AwsS3v3\AwsS3Adapter;
+use League\Flysystem\Filesystem;
+use Storeman\Config\ConfigurationException;
+use Storeman\Config\VaultConfiguration;
+
+class S3 extends FlysystemStorageAdapter
+{
+    public function __construct(VaultConfiguration $vaultConfiguration)
+    {
+        $requiredSettings = [
+            'bucket',
+            'key',
+            'secret',
+        ];
+
+        if ($missingSettings = array_diff($requiredSettings, array_keys(array_filter($vaultConfiguration->getSettings()))))
+        {
+            throw new ConfigurationException("Missing mandatory setting(s): " . implode(',', $missingSettings));
+        }
+
+        $client = new S3Client([
+            'version' => '2006-03-01',
+            'credentials' => [
+                'key' => $vaultConfiguration->getSetting('key'),
+                'secret' => $vaultConfiguration->getSetting('secret'),
+            ],
+            'region' => 'eu-central-1',
+        ]);
+        $adapter = new AwsS3Adapter($client, $vaultConfiguration->getSetting('bucket'));
+        $filesystem = new Filesystem($adapter);
+
+        parent::__construct($filesystem);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public static function getIdentificationString(VaultConfiguration $vaultConfiguration): string
+    {
+        return "{$vaultConfiguration->getSetting('username')}@{$vaultConfiguration->getSetting('host')}";
+    }
+}

tests/StorageAdapter/S3Test.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace Storeman\Test\StorageAdapter;
+
+use Storeman\Config\VaultConfiguration;
+use Storeman\StorageAdapter\S3;
+use Storeman\StorageAdapter\StorageAdapterInterface;
+use Storeman\Test\ConfiguredMockProviderTrait;
+
+class S3Test extends AbstractStorageAdapterTest
+{
+    use ConfiguredMockProviderTrait;
+
+    protected function getStorageAdapter(): StorageAdapterInterface
+    {
+        $vaultConfiguration = new VaultConfiguration($this->getConfigurationMock());
+        $vaultConfiguration->setSettings([
+            'key' => getenv('s3key'),
+            'secret' => getenv('s3secret'),
+            'bucket' => getenv('s3bucket'),
+        ]);
+
+        return new S3($vaultConfiguration);
+    }
+}