From 5b1e0822ac997f450cb6a7d5e693ca483b1aedcc Mon Sep 17 00:00:00 2001
From: Dan Bennett <dan@howtomoodle.com>
Date: Mon, 9 Mar 2015 16:13:52 +0000
Subject: [PATCH] MDL-49104 repository_s3: backport of MDL-43725

---
 repository/s3/lang/en/repository_s3.php |  1 +
 repository/s3/lib.php                   | 23 +++++++++++++++++++++--
 repository/s3/tests/generator/lib.php   |  3 +++
 3 files changed, 25 insertions(+), 2 deletions(-)
 mode change 100644 => 100755 repository/s3/lang/en/repository_s3.php
 mode change 100644 => 100755 repository/s3/lib.php
 mode change 100644 => 100755 repository/s3/tests/generator/lib.php

diff --git a/repository/s3/lang/en/repository_s3.php b/repository/s3/lang/en/repository_s3.php
old mode 100644
new mode 100755
index 121da86f1b4..93db5b297c7
--- a/repository/s3/lang/en/repository_s3.php
+++ b/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';
 $string['secret_key'] = 'Secret key';
diff --git a/repository/s3/lib.php b/repository/s3/lib.php
old mode 100644
new mode 100755
index 852f5f7045a..9d6cd2b0d2e
--- a/repository/s3/lib.php
+++ b/repository/s3/lib.php
@@ -46,7 +46,11 @@ class repository_s3 extends repository {
         parent::__construct($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);
     }
 
@@ -229,16 +233,31 @@ class repository_s3 extends repository {
     }
 
     public static function get_type_option_names() {
-        return array('access_key', 'secret_key', 'pluginname');
+        return array('access_key', 'secret_key', 'endpoint', 'pluginname');
     }
 
     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);
+        $mform->addElement('select', 'endpoint', get_string('endpoint', 'repository_s3'), $endpointselect);
+        $mform->setDefault('endpoint', 's3.amazonaws.com'); // Default to US Endpoint.
         $mform->addRule('access_key', $strrequired, 'required', null, 'client');
         $mform->addRule('secret_key', $strrequired, 'required', null, 'client');
     }
diff --git a/repository/s3/tests/generator/lib.php b/repository/s3/tests/generator/lib.php
old mode 100644
new mode 100755
index 8bbac54359b..9f52ecdebe8
--- a/repository/s3/tests/generator/lib.php
+++ b/repository/s3/tests/generator/lib.php
@@ -47,6 +47,9 @@ class repository_s3_generator extends testing_repository_generator {
         if (!isset($record['secret_key'])) {
             $record['secret_key'] = 'secret_key';
         }
+        if (!isset($record['endpoint'])) {
+            $record['endpoint'] = 'endpoint';
+        }
         return $record;
     }