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construct/include/ircd/m/keys.h

78 lines
3.1 KiB
C++

// 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.
#pragma once
#define HAVE_IRCD_M_KEYS_H
namespace ircd::m
{
struct keys;
bool expired(const m::keys &);
bool verify(const m::keys &, std::nothrow_t) noexcept;
void verify(const m::keys &);
std::ostream &pretty(std::ostream &, const m::keys &);
std::ostream &pretty_oneline(std::ostream &, const m::keys &);
}
/// Contains the public keys and proof of identity for a remote server.
///
/// A user who wishes to verify a signature from a remote server must have
/// the name of the server (origin) and the key_id. Calling the appropriate
/// static function of this class will attempt to fetch the key from the db
/// or make network requests, with valid response being saved to the db. Keys
/// are thus managed internally so the user doesn't supply a buffer or ever
/// construct this object; instead this object backed by internal db data is
/// presented in the supplied synchronous closure.
///
/// 2.2.1.1 Publishing Keys
///
/// Key Type, Description
/// server_name String, DNS name of the homeserver.
/// verify_keys Object, Public keys of the homeserver for verifying digital signatures.
/// old_verify_keys Object, The public keys that the server used to use and when it stopped using them.
/// signatures Object, Digital signatures for this object signed using the verify_keys.
/// valid_until_ts Integer, POSIX timestamp when the list of valid keys should be refreshed.
///
struct ircd::m::keys
:json::tuple
<
json::property<name::old_verify_keys, json::object>,
json::property<name::server_name, json::string>,
json::property<name::signatures, json::object>,
json::property<name::tls_fingerprints, json::array>,
json::property<name::valid_until_ts, time_t>,
json::property<name::verify_keys, json::object>
>
{
struct cache;
using queries = vector_view<const fed::key::server_key>; // <server, key_id>
using closure = std::function<void (const json::object &)>;
using closure_bool = std::function<bool (const json::object &)>;
static bool get(const queries &, const closure_bool &);
static bool get(const string_view &server_name, const closure &);
static bool get(const string_view &server_name, const string_view &key_id, const closure &);
static bool query(const string_view &query_server, const queries &, const closure_bool &);
static size_t fetch(const queries &);
using super_type::tuple;
using super_type::operator=;
};
struct ircd::m::keys::cache
{
static bool for_each(const string_view &server, const closure_bool &);
static bool has(const string_view &server, const string_view &key_id);
static bool get(const string_view &server, const string_view &key_id, const closure &);
static size_t set(const json::object &keys);
};