ircd:Ⓜ️:keys: Add an iteration over node's cached keys.

include/ircd/m/keys.h

@@ -66,6 +66,7 @@ struct ircd::m::keys
 
 struct ircd::m::keys::cache
 {
+	static bool for_each(const string_view &server, const closure_bool &);
 	static bool get(const string_view &server, const string_view &key_id, const closure &);
 	static size_t set(const json::object &keys);
 };

modules/console.cc

@@ -5469,6 +5469,33 @@ console_cmd__key__get(opt &out, const string_view &line)
 	return true;
 }
 
+//
+// keys
+//
+
+bool
+console_cmd__keys(opt &out, const string_view &line)
+{
+	const params param{line, " ",
+	{
+		"server_name"
+	}};
+
+	const auto &server_name
+	{
+		param.at("server_name")
+	};
+
+	m::keys::cache::for_each(server_name, [&out]
+	(const json::object &object)
+	{
+		out << object << std::endl;
+		return true;
+	});
+
+	return true;
+}
+
 //
 // stage
 //

modules/s_keys.cc

@@ -352,6 +352,35 @@ ircd::m::keys::cache::get(const string_view &server_name,
 		node_room.get(std::nothrow, "ircd.key", key_id, reclosure);
 }
 
+bool
+IRCD_MODULE_EXPORT
+ircd::m::keys::cache::for_each(const string_view &server_name,
+                               const keys::closure_bool &closure)
+{
+	const m::node::room node_room
+	{
+		server_name
+	};
+
+	const m::room::state state
+	{
+		node_room
+	};
+
+	return state.for_each("ircd.key", [&closure]
+	(const auto &type, const auto &key_id, const auto event_idx)
+	{
+		bool ret{true};
+		m::get(std::nothrow, event_idx, "content", [&closure, &ret]
+		(const json::object &content)
+		{
+			ret = closure(content);
+		});
+
+		return ret;
+	});
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 //
 // (internal) ed25519 support sanity test