Add integration with B2 cloud storage

README.md

@@ -86,6 +86,12 @@ It's stable enough, you'll need to understand permissions.
     'bucket' => '',
     'root'   => '',
 ],
+'b2' => [
+    'type' => 'B2',
+    'key'    => '',
+    'accountId' => '',
+    'bucket' => '',
+],
 'gcs' => [
     'type' => 'Gcs',
     'key'    => '',
@@ -179,6 +185,9 @@ Then, you'll need to select the appropriate packages for the adapters that you w
 # to support s3
 composer require league/flysystem-aws-s3-v3
 
+# to support b2
+composer require mhetreramesh/flysystem-backblaze
+
 # to support google cs
 composer require league/flysystem-aws-s3-v2
 

composer.json

@@ -26,6 +26,7 @@
     "srmklive/flysystem-dropbox-v2": "~1.0",
     "league/flysystem-rackspace": "~1.0",
     "league/flysystem-sftp": "~1.0",
+    "mhetreramesh/flysystem-backblaze" : "~1.0",
     "dropbox/dropbox-sdk": "~1.1",
     "aws/aws-sdk-php": "~3.0",
     "phpspec/phpspec": "~2.1"
@@ -35,6 +36,7 @@
   },
   "suggest": {
     "league/flysystem-aws-s3-v3": "AwsS3 adapter support.",
+    "mhetreramesh/flysystem-backblaze": "B2 adapter support.",
     "league/flysystem-aws-s3-v2": "GoogleCS adapter support.",
     "srmklive/flysystem-dropbox-v2": "Dropbox API v2 adapter support.",
     "league/flysystem-rackspace": "Rackspace adapter support.",

spec/Filesystems/BackblazeFilesystemSpec.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace spec\BackupManager\Filesystems;
+
+use BackblazeB2\Http\Client;
+use GuzzleHttp\Handler\MockHandler;
+use GuzzleHttp\HandlerStack;
+use GuzzleHttp\Psr7\Response;
+use PhpSpec\ObjectBehavior;
+
+class BackblazeFilesystemSpec extends ObjectBehavior {
+
+    function it_is_initializable() {
+        $this->shouldHaveType('BackupManager\Filesystems\BackblazeFilesystem');
+    }
+
+    function it_should_recognize_its_type_with_case_insensitivity() {
+        foreach (['b2', 'B2'] as $type) {
+            $this->handles($type)->shouldBe(true);
+        }
+
+        foreach ([null, 'foo'] as $type) {
+            $this->handles($type)->shouldBe(false);
+        }
+    }
+
+    function it_should_provide_an_instance_of_an_b2_filesystem() {
+        $this->get($this->getConfig())->getAdapter()->shouldHaveType('Mhetreramesh\Flysystem\BackblazeAdapter');
+    }
+
+    function getConfig() {
+        return [
+            'key'       => 'test_key',
+            'accountId' => 'test_id',
+            'bucket'    => 'bucket',
+            'options'   => ['client' => $this->getMockClient()]
+        ];
+    }
+
+    function getMockClient() {
+        $handler = new HandlerStack(new MockHandler([$this->getMockAuthorizationResponse()]));
+
+        return new Client(['handler' => $handler]);
+    }
+
+    function getMockAuthorizationResponse() {
+        $body = '{
+                    "accountId: "test_id", 
+                    "apiUrl": "https://api900.backblaze.com", 
+                    "authorizationToken": "testAuthToken, 
+                    "downloadUrl": "https://f900.backblaze.com"
+                }';
+
+        return new Response(200, [], $body);
+    }
+}

src/Filesystems/BackblazeFilesystem.php

@@ -0,0 +1,34 @@
+<?php namespace BackupManager\Filesystems;
+
+use BackblazeB2\Client;
+use League\Flysystem\Filesystem as Flysystem;
+use Mhetreramesh\Flysystem\BackblazeAdapter;
+
+/**
+ * Class BackblazeFilesystem
+ * @package BackupManager\Filesystems
+ */
+class BackblazeFilesystem implements Filesystem {
+
+    /**
+     * Test fitness of visitor.
+     * @param $type
+     * @return bool
+     */
+    public function handles($type) {
+        return strtolower($type) == 'b2';
+    }
+
+    /**
+     * @param array $config
+     * @return Flysystem
+     */
+    public function get(array $config) {
+        if (!isset($config['options'])) {
+            $config['options'] = [];
+        }
+
+        $client = new Client($config['accountId'], $config['key'], $config['options']);
+        return new Flysystem(new BackblazeAdapter($client, $config['bucket']));
+    }
+}