[ticket/15851] Automatic update downloader

PHPBB3-15851

phpBB/config/default/container/parameters.yml

@@ -20,3 +20,5 @@ parameters:
         - passwords.driver.bcrypt
         - passwords.driver.salted_md5
         - passwords.driver.phpass
+
+    public_key: 'auJX0pGetfYatE7t/rX5hAkCLZv9s78TwKkLfR3YGuQ='

phpBB/config/default/container/services.yml

@@ -37,6 +37,7 @@ imports:
     - { resource: services_twig.yml }
     - { resource: services_twig_extensions.yml }
     - { resource: services_ucp.yml }
+    - { resource: services_updater.yml }
     - { resource: services_user.yml }
 
     - { resource: tables.yml }

phpBB/config/default/container/services_updater.yml

@@ -0,0 +1,14 @@
+services:
+    updater.get_updates:
+        class: phpbb\update\get_updates
+        arguments:
+            - '@filesystem'
+            - '%public_key%'
+            - '%core.root_path%'
+
+    updater.controller:
+        class: phpbb\update\controller
+        arguments:
+            - '@filesystem'
+            - '@updater.get_updates'
+            - '%core.root_path%'