modules: Stub federation/timestamp_to_event; stub client/rooms/timestamp_to_event.

matrix/matrix.cc

@@ -109,6 +109,7 @@ ircd::m::module_names
 	"federation_send_leave",
 	"federation_send",
 	"federation_state",
+	"federation_timestamp_to_event",
 	"federation_user_devices",
 	"federation_user_keys_claim",
 	"federation_user_keys_query",

modules/Makefile.am

@@ -226,6 +226,7 @@ federation_federation_user_keys_query_la_SOURCES = federation/user_keys_query.cc
 federation_federation_user_keys_claim_la_SOURCES = federation/user_keys_claim.cc
 federation_federation_rooms_la_SOURCES = federation/rooms.cc
 federation_federation_hierarchy_la_SOURCES = federation/hierarchy.cc
+federation_federation_timestamp_to_event_la_SOURCES = federation/timestamp_to_event.cc
 
 federation_module_LTLIBRARIES = \
 	federation/federation_send.la \
@@ -250,6 +251,7 @@ federation_module_LTLIBRARIES = \
 	federation/federation_user_keys_claim.la \
 	federation/federation_rooms.la \
 	federation/federation_hierarchy.la \
+	federation/federation_timestamp_to_event.la \
 	###
 
 ###############################################################################
@@ -346,6 +348,7 @@ client_client_rooms_la_SOURCES = \
 	client/rooms/aliases.cc \
 	client/rooms/hierarchy.cc \
 	client/rooms/threads.cc \
+	client/rooms/timestamp_to_event.cc \
 	client/rooms/rooms.cc \
 	###
 

modules/client/rooms/rooms.cc

@@ -81,6 +81,9 @@ get_rooms(client &client,
 	if(cmd == "threads")
 		return get__threads(client, request, room_id);
 
+	if(cmd == "timestamp_to_event")
+		return get__timestamp_to_event(client, request, room_id);
+
 	throw m::NOT_FOUND
 	{
 		"/rooms command not found"

modules/client/rooms/rooms.h

@@ -264,3 +264,13 @@ ircd::m::resource::response
 get__threads(ircd::client &,
              const ircd::m::resource::request &,
              const ircd::m::room::id &);
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// timestamp_to_event.cc
+//
+
+ircd::m::resource::response
+get__timestamp_to_event(ircd::client &,
+                        const ircd::m::resource::request &,
+                        const ircd::m::room::id &);

modules/client/rooms/timestamp_to_event.cc

@@ -0,0 +1,64 @@
+// Matrix Construct
+//
+// Copyright (C) Matrix Construct Developers, Authors & Contributors
+// Copyright (C) 2016-2023 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.
+
+#include "rooms.h"
+
+using namespace ircd;
+
+m::resource::response
+get__timestamp_to_event(client &client,
+                        const m::resource::request &request,
+                        const m::room::id &room_id)
+{
+	const auto &dir
+	{
+		request.query["dir"]
+	};
+
+	const milliseconds ts
+	{
+		request.query.at<long>("ts")
+	};
+
+	const m::event::idx event_idx
+	{
+		0UL
+	};
+
+	const m::event::fetch event
+	{
+		std::nothrow, event_idx
+	};
+
+	const long &event_ts
+	{
+		json::get<"origin_server_ts"_>(event)
+	};
+
+	const m::room room
+	{
+		room_id, event.event_id
+	};
+
+	if(!visible(room, request.user_id))
+		throw m::ACCESS_DENIED
+		{
+			"You are not permitted to view the room at this event"
+		};
+
+	return m::resource::response
+	{
+		client, http::NOT_IMPLEMENTED, json::members
+		{
+			{ "event_id", event.event_id },
+			{ "origin_server_ts", event_ts },
+		}
+	};
+}

modules/federation/timestamp_to_event.cc

@@ -0,0 +1,96 @@
+// Matrix Construct
+//
+// Copyright (C) Matrix Construct Developers, Authors & Contributors
+// Copyright (C) 2016-2023 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 timestamp to event"
+};
+
+m::resource
+timestamp_to_event_resource
+{
+	"/_matrix/federation/v1/timestamp_to_event/",
+	{
+		"federation timestamp to event",
+		resource::DIRECTORY,
+	}
+};
+
+m::resource::response
+get__timestamp_to_event(client &client,
+                        const m::resource::request &request);
+
+m::resource::method
+method_get
+{
+	timestamp_to_event_resource, "GET", get__timestamp_to_event,
+	{
+		method_get.VERIFY_ORIGIN
+	}
+};
+
+m::resource::response
+get__timestamp_to_event(client &client,
+                        const m::resource::request &request)
+{
+	if(request.parv.size() < 1)
+		throw m::NEED_MORE_PARAMS
+		{
+			"room_id path parameter required"
+		};
+
+	m::room::id::buf room_id
+	{
+		url::decode(room_id, request.parv[0])
+	};
+
+	if(m::room::server_acl::enable_read && !m::room::server_acl::check(room_id, request.node_id))
+		throw m::ACCESS_DENIED
+		{
+			"You are not permitted by the room's server access control list."
+		};
+
+	const auto dir
+	{
+		request.query["dir"]
+	};
+
+	const milliseconds ts
+	{
+		request.query.at<long>("ts")
+	};
+
+	const m::event::idx event_idx
+	{
+		0UL
+	};
+
+	const m::event::fetch event
+	{
+		std::nothrow, event_idx
+	};
+
+	const long &event_ts
+	{
+		json::get<"origin_server_ts"_>(event)
+	};
+
+	return m::resource::response
+	{
+		client, http::NOT_IMPLEMENTED, json::members
+		{
+			{ "event_id", event.event_id },
+			{ "origin_server_ts", event_ts },
+		}
+	};
+}