S3 path style endpoint setting

README.md

@@ -334,7 +334,7 @@ Use the AWS plugin for the objectfs addon.
 - **Secret**: Min.io Secret
 - **Bucket**: S3 Bucket name
 - **AWS region**: Doesn't matter
-- **Base URL***: Your ip address of Min.io server or url. (If it's internal, see issue page [here](https://github.com/catalyst/moodle-tool_objectfs/issues/579).
+- **Base URL***: Your ip address of Min.io server or url. (If it's internal, see issue page [here](https://github.com/catalyst/moodle-tool_objectfs/issues/579)).
 - **Key Prefix**: useful for adding a prefix for all data stored in bucket. Can be used to reuse the same CloudFront distribution for both Moodle itself and the pre-signed URLs files.
 
 ### Azure Blob Storage settings

classes/local/store/s3/client.php

@@ -183,9 +183,13 @@ public function set_client($config) {
         if ($config->s3_base_url) {
             $options['endpoint'] = $config->s3_base_url;
         }
+
+        if (!empty($config->s3_path_style_endpoint)) {
+            $options['use_path_style_endpoint'] = (bool) $config->s3_path_style_endpoint;
+        }
 
         $this->client = \Aws\S3\S3Client::factory($options);
-    }
+     }
 
     /**
      * Registers 's3://bucket' as a prefix for file actions.
@@ -512,7 +516,14 @@ public function define_client_section($settings, $config) {
             new \lang_string('settings:aws:base_url_help', 'tool_objectfs'),
             ''
         ));
-
+
+        $settings->add(new \admin_setting_configcheckbox(
+            'tool_objectfs/s3_path_style_endpoint',
+            new \lang_string('settings:aws:path_style_endpoint', 'tool_objectfs'),
+            new \lang_string('settings:aws:path_style_endpoint_help', 'tool_objectfs'),
+            0
+        ));
+
         $settings->add(new \admin_setting_configtext(
             'tool_objectfs/key_prefix',
             new \lang_string('settings:aws:key_prefix', 'tool_objectfs'),

lang/en/tool_objectfs.php

@@ -141,6 +141,8 @@
 $string['settings:aws:key_help'] = 'Amazon S3 key credential.';
 $string['settings:aws:key_prefix'] = 'Prefix to use in bucket';
 $string['settings:aws:key_prefix_help'] = 'Prefix to use inside Amazon S3 bucket. Must end with trailing slash when set. Leave blank to use root of bucket.';
+$string['settings:aws:path_style_endpoint'] = 'Path style endpoint';
+$string['settings:aws:path_style_endpoint_help'] = 'Use path style endpoints for S3 client.';
 $string['settings:aws:region'] = 'region';
 $string['settings:aws:region_help'] = 'Amazon S3 API gateway region.';
 $string['settings:aws:sdkcredserror'] = 'Couldn\'t find AWS credentials. It\'s unsafe to enable this setting. Follow up <a href="https://docs.aws.amazon.com/sdk-for-php/v3/developer-guide/guide_credentials.html">AWS documentation</a>.';