MDL-43752 repository_s3: added endpoint select box to settings page

repository/s3/lang/en/repository_s3.php

@@ -25,6 +25,7 @@
 
 $string['access_key'] = 'Access key';
 $string['configplugin'] = 'Amazon S3 settings';
+$string['endpoint'] = 'Amazon S3 Endpoint';
 $string['needaccesskey'] = 'Access key must be provided';
 $string['pluginname'] = 'Amazon S3';
 $string['secret_key'] = 'Secret key';

repository/s3/lib.php

@@ -46,7 +46,11 @@ public function __construct($repositoryid, $context = SYSCONTEXTID, $options = a
         parent::__construct($repositoryid, $context, $options);
         $this->access_key = get_config('s3', 'access_key');
         $this->secret_key = get_config('s3', 'secret_key');
-        $this->s = new S3($this->access_key, $this->secret_key);
+        $this->endpoint = get_config('s3', 'endpoint');
+        if ($this->endpoint === false) { // If no endpoint has been set, use the default.
+            $this->endpoint = 's3.amazonaws.com';
+        }
+        $this->s = new S3($this->access_key, $this->secret_key, false, $this->endpoint);
         $this->s->setExceptions(true);
     }
 
@@ -235,10 +239,25 @@ public static function get_type_option_names() {
     public static function type_config_form($mform, $classname = 'repository') {
         parent::type_config_form($mform);
         $strrequired = get_string('required');
+        $endpointselect = array( // List of possible Amazon S3 Endpoints.
+            "s3.amazonaws.com" => "s3.amazonaws.com",
+            "s3-external-1.amazonaws.com" => "s3-external-1.amazonaws.com",
+            "s3-us-west-2.amazonaws.com" => "s3-us-west-2.amazonaws.com",
+            "s3-us-west-1.amazonaws.com" => "s3-us-west-1.amazonaws.com",
+            "s3-eu-west-1.amazonaws.com" => "s3-eu-west-1.amazonaws.com",
+            "s3.eu-central-1.amazonaws.com" => "s3.eu-central-1.amazonaws.com",
+            "s3-eu-central-1.amazonaws.com" => "s3-eu-central-1.amazonaws.com",
+            "s3-ap-southeast-1.amazonaws.com" => "s3-ap-southeast-1.amazonaws.com",
+            "s3-ap-southeast-2.amazonaws.com" => "s3-ap-southeast-2.amazonaws.com",
+            "s3-ap-northeast-1.amazonaws.com" => "s3-ap-northeast-1.amazonaws.com",
+            "s3-sa-east-1.amazonaws.com" => "s3-sa-east-1.amazonaws.com"
+        );
         $mform->addElement('text', 'access_key', get_string('access_key', 'repository_s3'));
         $mform->setType('access_key', PARAM_RAW_TRIMMED);
         $mform->addElement('text', 'secret_key', get_string('secret_key', 'repository_s3'));
         $mform->setType('secret_key', PARAM_RAW_TRIMMED);
+        $endpointselected = $mform->addElement('select', 'endpoint', get_string('endpoint', 'repository_s3'), $endpointselect);
+        $endpointselected->setSelected('s3.amazonaws.com'); // Default to US Endpoint.
         $mform->addRule('access_key', $strrequired, 'required', null, 'client');
         $mform->addRule('secret_key', $strrequired, 'required', null, 'client');
     }