modules: Add m_typing eval stub.

modules/Makefile.am

@@ -60,10 +60,12 @@ s_module_LTLIBRARIES = \
 m_moduledir = @moduledir@
 
 m_noop_la_SOURCES = m_noop.cc
+m_typing_la_SOURCES = m_typing.cc
 m_presence_la_SOURCES = m_presence.cc
 
 m_module_LTLIBRARIES = \
 	m_noop.la \
+	m_typing.la \
 	m_presence.la \
 	###
 

modules/m_typing.cc

@@ -0,0 +1,78 @@
+// 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
+{
+	"Matrix Typing"
+};
+
+static void _handle_edu_m_typing(const m::event &, const m::edu::m_typing &edu);
+static void handle_edu_m_typing(const m::event &);
+
+const m::hook
+_m_typing_eval
+{
+	handle_edu_m_typing,
+	{
+		{ "_site",   "vm.eval"     },
+		{ "type",    "m.typing"    },
+	}
+};
+
+void
+handle_edu_m_typing(const m::event &event)
+{
+	const json::object &content
+	{
+		at<"content"_>(event)
+	};
+
+	_handle_edu_m_typing(event, content);
+}
+
+void
+_handle_edu_m_typing(const m::event &event,
+                     const m::edu::m_typing &edu)
+{
+	const m::room::id &room_id
+	{
+		at<"room_id"_>(edu)
+	};
+
+	const m::user::id &user_id
+	{
+		at<"user_id"_>(edu)
+	};
+
+	if(user_id.host() != at<"origin"_>(event))
+	{
+		log::warning
+		{
+			"Ignoring %s from %s for user %s",
+			at<"type"_>(event),
+			at<"origin"_>(event),
+			string_view{user_id}
+		};
+
+		return;
+	}
+
+	log::debug
+	{
+		"%s | %s %s typing in %s",
+		at<"origin"_>(event),
+		string_view{user_id},
+		json::get<"typing"_>(edu)? "started"_sv : "stopped"_sv,
+		string_view{room_id}
+	};
+}