Added option preferredAlgorithms (#183)

* Added option preferredAlgorithms

* Added option preferredAlgorithms to docs

---------

Co-authored-by: Maxime Helias <maximehelias16@gmail.com>

Author: freezy-sk

docs/3-interacting-with-ftp-and-sftp-servers.md

@@ -59,6 +59,8 @@ flysystem:
                 privateKey: 'path/to/or/contents/of/privatekey'
                 passphrase: 'privatekey_passphrase'
                 hostFingerprint: 'host_fingerprint'
+                preferredAlgorithms:
+                    hostkey: ['rsa-sha2-256', 'ssh-rsa']
                 root: '/path/to/root'
                 timeout: 10
                 directoryPerm: 0744

src/Adapter/Builder/SftpAdapterDefinitionBuilder.php

@@ -91,6 +91,9 @@ protected function configureOptions(OptionsResolver $resolver): void
         $resolver->setDefault('connectivityChecker', null);
         $resolver->setAllowedTypes('connectivityChecker', ['string', 'null']);
 
+        $resolver->setDefault('preferredAlgorithms', []);
+        $resolver->setAllowedTypes('preferredAlgorithms', 'array');
+
         $this->configureUnixOptions($resolver);
     }
 

tests/Adapter/Builder/SftpAdapterDefinitionBuilderTest.php

@@ -40,6 +40,9 @@ public function provideValidOptions(): \Generator
             'passphrase' => null,
             'hostFingerprint' => null,
             'timeout' => 30,
+            'preferredAlgorithms' => [
+                'hostkey' => ['rsa-sha2-256', 'ssh-rsa'],
+            ],
         ]];
     }
 
@@ -80,6 +83,7 @@ public function testOptionsBehavior(): void
             'permPrivate' => 0700,
             'permPublic' => 0744,
             'connectivityChecker' => null,
+            'preferredAlgorithms' => [],
             'permissions' => [
                 'file' => [
                     'public' => 0644,

tests/Adapter/options.yaml

@@ -67,3 +67,5 @@ fs_sftp:
         privateKey: 'path/to/or/contents/of/privatekey'
         root: '/path/to/root'
         timeout: 10
+        preferredAlgorithms:
+            hostkey: ['rsa-sha2-256', 'ssh-rsa']