Add Linode object storage support

classes/linode_file_system.php

@@ -0,0 +1,35 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * File system for Linode Ocean Storage.
+ *
+ * @package   tool_objectfs
+ * @author    Brian Yanosik <kisonay@gmail.com>
+ * @copyright  Catalyst IT
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_objectfs;
+
+use tool_objectfs\local\store\linode\file_system;
+
+/**
+ * Unknown?
+ */
+class linode_file_system extends file_system {
+
+}

classes/local/manager.php

@@ -308,6 +308,7 @@ public static function get_available_fs_list() {
 
         $filesystems['\tool_objectfs\azure_file_system'] = '\tool_objectfs\azure_file_system';
         $filesystems['\tool_objectfs\digitalocean_file_system'] = '\tool_objectfs\digitalocean_file_system';
+        $filesystems['\tool_objectfs\linode_file_system'] = '\tool_objectfs\linode_file_system';
         $filesystems['\tool_objectfs\s3_file_system'] = '\tool_objectfs\s3_file_system';
         $filesystems['\tool_objectfs\swift_file_system'] = '\tool_objectfs\swift_file_system';
 

classes/local/store/linode/client.php

@@ -0,0 +1,139 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Linode Object Spaces client.
+ *
+ * @package   tool_objectfs
+ * @author    Brian Yanosik <kisonay@gmail.com>
+ * @copyright Brian Yanosik
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_objectfs\local\store\linode;
+
+use tool_objectfs\local\store\s3\client as s3_client;
+
+/**
+ * client
+ */
+class client extends s3_client {
+
+    /**
+     * construct
+     * @param \stdClass $config
+     * @return void
+     */
+    public function __construct($config) {
+        global $CFG;
+        $this->autoloader = $CFG->dirroot . '/local/aws/sdk/aws-autoloader.php';
+        $this->testdelete = false;
+
+        if ($this->get_availability() && !empty($config)) {
+            require_once($this->autoloader);
+            $this->bucket = $config->linode_bucket;
+            $this->set_client($config);
+        } else {
+            parent::__construct($config);
+        }
+    }
+
+    /**
+     * Check if the client configured properly.
+     *
+     * @param \stdClass $config Client config.
+     * @return bool
+     */
+    protected function is_configured($config) {
+        if (empty($config->linode_key) || empty($config->linode_secret) || empty($config->linode_region)) {
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * set_client
+     * @param \stdClass $config
+     *
+     * @return void
+     */
+    public function set_client($config) {
+        if (!$this->is_configured($config)) {
+            $this->client = null;
+            return;
+        }
+
+        $this->client = \Aws\S3\S3Client::factory([
+            'credentials' => ['key' => $config->linode_key, 'secret' => $config->linode_secret],
+            'region' => $config->linode_region,
+            'endpoint' => 'https://' . $config->linode_region . '.linodeobjects.com',
+            'version' => AWS_API_VERSION,
+        ]);
+    }
+
+    /**
+     * define_client_section
+     * @param admin_settingpage $settings
+     * @param \stdClass $config
+     * @return admin_settingpage
+     */
+    public function define_client_section($settings, $config) {
+
+        $regionoptions = [            
+            'nl-ams-1' => 'nl-ams-1 (Amsterdam, Netherlands)',
+            'us-southeast-1' => 'us-southeast-1 (Atlanta, GA, USA)',
+            'in-maa-1' => 'in-maa-1 (Chennai, India)',
+            'us-ord-1' => 'us-ord-1 (Chicago, IL, USA)',
+            'eu-central-1' => 'eu-central-1 (Frankfurt, Germany)',
+            'id-cgk-1' => 'id-cgk-1 (Jakarta, Indonesia)',
+            'us-lax-1' => 'us-lax-1 (Los Angeles, CA, USA)',
+            'es-mad-1' => 'es-mad-1 (Madrid, Spain)',
+            'us-mia-1' => 'us-mia-1 (Miami, FL, USA)',
+            'it-mil-1' => 'it-mil-1 (Milan, Italy)',
+            'us-east-1' => 'us-east-1 (Newark, NJ, USA)',
+            'jp-osa-1' => 'jp-osa-1 (Osaka, Japan)',
+            'fr-par-1' => 'fr-par-1 (Paris, France)',
+            'br-gru-1' => 'br-gru-1 (São Paulo, Brazil)',
+            'us-sea-1' => 'us-sea-1 (Seattle, WA, USA)',
+            'ap-south-1' => 'ap-south-1 (Singapore)',
+            'se-sto-1' => 'se-sto-1 (Stockholm, Sweden)',
+            'us-iad-1' => 'us-iad-1 (Washington, DC, USA)',
+        ];
+
+        $settings->add(new \admin_setting_heading('tool_objectfs/linode',
+            new \lang_string('settings:linode:header', 'tool_objectfs'), ''));
+
+        $settings->add(new \admin_setting_configtext('tool_objectfs/linode_key',
+            new \lang_string('settings:linode:key', 'tool_objectfs'),
+            new \lang_string('settings:linode:key_help', 'tool_objectfs'), ''));
+
+        $settings->add(new \admin_setting_configpasswordunmask('tool_objectfs/linode_secret',
+            new \lang_string('settings:linode:secret', 'tool_objectfs'),
+            new \lang_string('settings:linode:secret_help', 'tool_objectfs'), ''));
+
+        $settings->add(new \admin_setting_configtext('tool_objectfs/linode_bucket',
+            new \lang_string('settings:linode:bucket', 'tool_objectfs'),
+            new \lang_string('settings:linode:bucket_help', 'tool_objectfs'), ''));
+
+        $settings->add(new \admin_setting_configselect('tool_objectfs/linode_region',
+            new \lang_string('settings:linode:region', 'tool_objectfs'),
+            new \lang_string('settings:linode:region_help', 'tool_objectfs'), '', $regionoptions));
+
+        return $settings;
+    }
+
+}

classes/local/store/linode/file_system.php

@@ -0,0 +1,54 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * object_file_system abstract class.
+ *
+ * Remote object storage providers extent this class.
+ * At minimum you need to implement get_remote_client.
+ *
+ * @package   tool_objectfs
+ * @author    Brian Yanosik <kisonay@gmail.com>
+ * @copyright Brian Yanosik
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_objectfs\local\store\linode;
+
+defined('MOODLE_INTERNAL') || die();
+
+use tool_objectfs\local\store\s3\file_system as s3_file_system;
+
+require_once($CFG->dirroot . '/admin/tool/objectfs/lib.php');
+
+/**
+ * [Description file_system]
+ */
+class file_system extends s3_file_system {
+
+    /**
+     * initialise_external_client
+     * @param \stdClass $config
+     *
+     * @return client
+     */
+    protected function initialise_external_client($config) {
+        $linodeclient = new client($config);
+
+        return $linodeclient;
+    }
+
+}

lang/en/tool_objectfs.php

@@ -138,6 +138,16 @@
 $string['settings:do:region'] = 'Region';
 $string['settings:do:region_help'] = 'DO Spaces API gateway region.';
 
+$string['settings:linode:header'] = 'Linode Object Storage Settings';
+$string['settings:linode:key'] = 'Key';
+$string['settings:linode:key_help'] = 'Linode Object Storage key credential.';
+$string['settings:linode:secret'] = 'Secret';
+$string['settings:linode:secret_help'] = 'Linode Object Storage secret credential.';
+$string['settings:linode:bucket'] = 'Space';
+$string['settings:linode:bucket_help'] = 'Linode Object Storage to store files in.';
+$string['settings:linode:region'] = 'Region';
+$string['settings:linode:region_help'] = 'Linode Object Storage API gateway region.';
+
 $string['settings:azure:header'] = 'Azure Blob Storage Settings';
 $string['settings:azure:accountname'] = 'Account name';
 $string['settings:azure:accountname_help'] = 'The name of the storage account.';