modules: Add preliminary federation/get_missing_events handler.

modules/Makefile.am

@@ -100,9 +100,11 @@ key_module_LTLIBRARIES = \
 federation_moduledir = @moduledir@
 federation_federation_send_la_SOURCES = federation/send.cc
 federation_federation_event_la_SOURCES = federation/event.cc
+federation_federation_get_missing_events_la_SOURCES = federation/get_missing_events.cc
 federation_module_LTLIBRARIES = \
 	federation/federation_send.la \
 	federation/federation_event.la \
+	federation/federation_get_missing_events.la \
 	###
 
 # This puts the source in media/ but the installed

modules/federation/get_missing_events.cc

@@ -0,0 +1,53 @@
+// Matrix Construct
+//
+// Copyright (C) Matrix Construct Developers, Authors & Contributors
+// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice is present in all copies. The
+// full license for this software is available in the LICENSE file.
+
+using namespace ircd;
+
+mapi::header IRCD_MODULE
+{
+	"federation missing events handler"
+};
+
+struct send
+:resource
+{
+	using resource::resource;
+}
+get_missing_events_resource
+{
+	"/_matrix/federation/v1/get_missing_events/",
+	{
+		"federation missing events handler",
+		resource::DIRECTORY,
+	}
+};
+
+resource::response
+handle_get(client &client,
+           const resource::request &request)
+{
+	m::room::id::buf room_id
+	{
+		url::decode(request.parv[0], room_id)
+	};
+
+	return resource::response
+	{
+		client, http::NOT_FOUND
+	};
+}
+
+resource::method method_get
+{
+	get_missing_events_resource, "GET", handle_get,
+	{
+		method_get.VERIFY_ORIGIN
+	}
+};