0
0
Fork 0
mirror of https://github.com/matrix-construct/construct synced 2024-12-28 00:14:07 +01:00
construct/ircd/m/m.cc

3351 lines
66 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.
decltype(ircd::m::log)
ircd::m::log
{
"matrix", 'm'
};
decltype(ircd::m::listeners)
ircd::m::listeners
{};
//
// init
//
ircd::conf::item<std::string>
me_online_status_msg
{
{ "name", "ircd.me.online.status_msg" },
{ "default", "Wanna chat? IRCd at your service!" }
};
ircd::conf::item<std::string>
me_offline_status_msg
{
{ "name", "ircd.me.offline.status_msg" },
{ "default", "Catch ya on the flip side..." }
};
struct ircd::m::init::modules
{
modules(const json::object &);
~modules() noexcept;
};
struct ircd::m::init::listeners
{
listeners(const json::object &);
~listeners() noexcept;
};
//
// init::init
//
ircd::m::init::init()
try
:config
{
ircd::conf::config
}
,_self
{
this->config
}
,_keys
{
this->config
}
,modules{[this]
{
auto ret{std::make_unique<struct modules>(config)};
if(db::sequence(*dbs::events) == 0)
bootstrap();
return ret;
}()}
,listeners
{
std::make_unique<struct listeners>(config)
}
{
presence::set(me, "online", me_online_status_msg);
}
catch(const m::error &e)
{
log.error("%s %s", e.what(), e.content);
}
catch(const std::exception &e)
{
log.error("%s", e.what());
}
ircd::m::init::~init()
noexcept try
{
listeners.reset(nullptr);
presence::set(me, "offline", me_offline_status_msg);
}
catch(const m::error &e)
{
log.critical("%s %s", e.what(), e.content);
ircd::terminate();
}
void
ircd::m::init::close()
{
listeners.reset(nullptr);
}
ircd::m::init::modules::modules(const json::object &config)
try
{
if(ircd::noautomod)
{
log::warning
{
"Not loading modules because noautomod flag is set. "
"You may still load modules manually."
};
return;
}
static const string_view prefixes[]
{
"s_", "m_", "client_", "key_", "federation_", "media_"
};
m::modules.emplace("vm"s, "vm"s);
for(const auto &name : mods::available())
if(startswith_any(name, std::begin(prefixes), std::end(prefixes)))
m::modules.emplace(name, name);
m::modules.emplace("root"s, "root"s);
}
catch(...)
{
this->~modules();
}
ircd::m::init::modules::~modules()
noexcept
{
m::modules.clear();
}
namespace ircd::m
{
static void init_listener(const json::object &config, const string_view &name, const json::object &conf);
}
ircd::m::init::listeners::listeners(const json::object &config)
try
{
if(ircd::nolisten)
{
log::warning
{
"Not listening on any addresses because nolisten flag is set."
};
return;
}
const json::array listeners
{
config[{"ircd", "listen"}]
};
for(const auto &name : listeners) try
{
const json::object &opts
{
config.at({"listen", unquote(name)})
};
if(!opts.has("tmp_dh_path"))
throw user_error
{
"Listener %s requires a 'tmp_dh_path' in the config. We do not"
" create this yet. Try `openssl dhparam -outform PEM -out dh512.pem 512`",
name
};
init_listener(config, unquote(name), opts);
}
catch(const json::not_found &e)
{
throw ircd::user_error
{
"Failed to find configuration block for listener %s", name
};
}
}
catch(...)
{
this->~listeners();
}
ircd::m::init::listeners::~listeners()
noexcept
{
m::listeners.clear();
}
static void
ircd::m::init_listener(const json::object &config,
const string_view &name,
const json::object &opts)
{
m::listeners.emplace_back(name, opts);
}
void
ircd::m::init::bootstrap()
{
assert(dbs::events);
assert(db::sequence(*dbs::events) == 0);
ircd::log::notice
(
"This appears to be your first time running IRCd because the events "
"database is empty. I will be bootstrapping it with initial events now..."
);
if(me.user_id.hostname() == "localhost")
log::warning
{
"The ircd.origin is configured to localhost. This is probably not"
" what you want. To fix this now, you will have to remove the "
" database and start over."
};
create(user::users, me.user_id);
create(my_room, me.user_id);
create(me.user_id);
me.activate();
join(my_room, me.user_id);
send(my_room, me.user_id, "m.room.name", "",
{
{ "name", "IRCd's Room" }
});
send(my_room, me.user_id, "m.room.topic", "",
{
{ "topic", "The daemon's den." }
});
send(user::users, me.user_id, "m.room.name", "",
{
{ "name", "Users" }
});
create(user::tokens, me.user_id);
send(user::tokens, me.user_id, "m.room.name", "",
{
{ "name", "User Tokens" }
});
}
///////////////////////////////////////////////////////////////////////////////
//
// m/self.h
//
//
// my user
//
ircd::m::user::id::buf
ircd_user_id
{
"ircd", "localhost" // gets replaced after conf init
};
ircd::m::user
ircd::m::me
{
ircd_user_id
};
//
// my room
//
ircd::m::room::id::buf
ircd_room_id
{
"ircd", "localhost" // replaced after conf init
};
ircd::m::room
ircd::m::my_room
{
ircd_room_id
};
//
// my node
//
ircd::m::node::id::buf
ircd_node_id
{
"", "localhost" // replaced after conf init
};
ircd::m::node
ircd::m::my_node
{
ircd_node_id
};
bool
ircd::m::self::host(const string_view &s)
{
return s == host();
}
ircd::string_view
ircd::m::self::host()
{
return me.user_id.host();
}
//
// init
//
ircd::m::self::init::init(const json::object &config)
{
const string_view &origin_name
{
unquote(config.get({"ircd", "origin"}, "localhost"))
};
ircd_user_id = {"ircd", origin_name};
m::me = {ircd_user_id};
ircd_room_id = {"ircd", origin_name};
m::my_room = {ircd_room_id};
ircd_node_id = {"", origin_name};
m::my_node = {ircd_node_id};
if(origin_name == "localhost")
log::warning
{
"The ircd.origin is configured or has defaulted to 'localhost'"
};
}
ircd::m::self::init::~init()
noexcept
{
}
///////////////////////////////////////////////////////////////////////////////
//
// m/vm.h
//
decltype(ircd::m::vm::accept)
ircd::m::vm::accept
{};
decltype(ircd::m::vm::current_sequence)
ircd::m::vm::current_sequence
{};
decltype(ircd::m::vm::default_opts)
ircd::m::vm::default_opts
{};
decltype(ircd::m::vm::default_copts)
ircd::m::vm::default_copts
{};
/// Instance list linkage for all of the evaluations.
template<>
decltype(ircd::util::instance_list<ircd::m::vm::eval>::list)
ircd::util::instance_list<ircd::m::vm::eval>::list
{};
decltype(ircd::m::vm::eval::id_ctr)
ircd::m::vm::eval::id_ctr
{};
//
// Eval
//
// Processes any event from any place from any time and does whatever is
// necessary to validate, reject, learn from new information, ignore old
// information and advance the state of IRCd as best as possible.
//
// eval::eval
//
ircd::m::vm::eval::eval(const room &room,
json::iov &event,
const json::iov &content)
:eval{}
{
operator()(room, event, content);
}
ircd::m::vm::eval::eval(json::iov &event,
const json::iov &content,
const vm::copts &opts)
:eval{opts}
{
operator()(event, content);
}
ircd::m::vm::eval::eval(const event &event,
const vm::opts &opts)
:eval{opts}
{
operator()(event);
}
ircd::m::vm::eval::eval(const vm::copts &opts)
:opts{&opts}
,copts{&opts}
{
}
ircd::m::vm::eval::eval(const vm::opts &opts)
:opts{&opts}
{
}
ircd::m::vm::eval::~eval()
noexcept
{
}
ircd::m::vm::eval::operator
const event::id::buf &()
const
{
return event_id;
}
///
/// Figure 1:
/// in . <-- injection
/// ===:::::::==//
/// | ||||||| // <-- these functions
/// | \\|// //|
/// | ||| // | | acceleration
/// | |||// | |
/// | |||/ | |
/// | ||| | V
/// | !!! |
/// | * | <----- nozzle
/// | ///|||\\\ |
/// |/|/|/|\|\|\| <---- propagation cone
/// _/|/|/|/|\|\|\|\_
/// out
///
/// Inject a new event in a room originating from this server.
///
enum ircd::m::vm::fault
ircd::m::vm::eval::operator()(const room &room,
json::iov &event,
const json::iov &contents)
{
using prototype = fault (eval &, const m::room &, json::iov &, const json::iov &);
static import<prototype> function
{
"vm", "eval__commit_room"
};
// This eval entry point is only used for commits. We try to find the
// commit opts the user supplied directly to this eval or with the room.
if(!copts)
copts = room.opts;
if(!copts)
copts = &vm::default_copts;
// Note that the regular opts is unconditionally overridden because the
// user should have provided copts instead.
this->opts = copts;
// Set a member pointer to the json::iov currently being composed. This
// allows other parallel evals to have deep access to exactly what this
// eval is attempting to do.
issue = &event;
room_id = room.room_id;
phase = phase::ENTER;
const unwind deissue{[this]
{
phase = phase::ACCEPT;
room_id = {};
issue = nullptr;
}};
return function(*this, room, event, contents);
}
/// Inject a new event originating from this server.
///
enum ircd::m::vm::fault
ircd::m::vm::eval::operator()(json::iov &event,
const json::iov &contents)
{
using prototype = fault (eval &, json::iov &, const json::iov &);
static import<prototype> function
{
"vm", "eval__commit"
};
// This eval entry point is only used for commits. If the user did not
// supply commit opts we supply the default ones here.
if(!copts)
copts = &vm::default_copts;
// Note that the regular opts is unconditionally overridden because the
// user should have provided copts instead.
this->opts = copts;
// Set a member pointer to the json::iov currently being composed. This
// allows other parallel evals to have deep access to exactly what this
// eval is attempting to do.
assert(!room_id || issue == &event);
if(!room_id)
{
issue = &event;
phase = phase::ENTER;
}
const unwind deissue{[this]
{
// issue is untouched when room_id is set; that indicates it was set
// and will be unset by another eval function (i.e above).
if(!room_id)
{
phase = phase::ACCEPT;
issue = nullptr;
}
}};
return function(*this, event, contents);
}
enum ircd::m::vm::fault
ircd::m::vm::eval::operator()(const event &event)
{
using prototype = fault (eval &, const m::event &);
static import<prototype> function
{
"vm", "eval__event"
};
// Set a member pointer to the event currently being evaluated. This
// allows other parallel evals to have deep access to exactly what this
// eval is working on. The pointer must be nulled on the way out.
this->event_= &event;
if(!issue)
phase = phase::ENTER;
const unwind null_event{[this]
{
if(!issue)
phase = phase::ACCEPT;
this->event_ = nullptr;
}};
return function(*this, event);
}
const uint64_t &
ircd::m::vm::sequence(const eval &eval)
{
return eval.sequence;
}
uint64_t
ircd::m::vm::retired_sequence()
{
event::id::buf event_id;
return retired_sequence(event_id);
}
uint64_t
ircd::m::vm::retired_sequence(event::id::buf &event_id)
{
static constexpr auto column_idx
{
json::indexof<event, "event_id"_>()
};
auto &column
{
dbs::event_column.at(column_idx)
};
const auto it
{
column.rbegin()
};
if(!it)
{
// If this iterator is invalid the events db should
// be completely fresh.
assert(db::sequence(*dbs::events) == 0);
return 0;
}
const auto &ret
{
byte_view<uint64_t>(it->first)
};
event_id = it->second;
return ret;
}
ircd::string_view
ircd::m::vm::reflect(const enum fault &code)
{
switch(code)
{
case fault::ACCEPT: return "ACCEPT";
case fault::EXISTS: return "EXISTS";
case fault::INVALID: return "INVALID";
case fault::DEBUGSTEP: return "DEBUGSTEP";
case fault::BREAKPOINT: return "BREAKPOINT";
case fault::GENERAL: return "GENERAL";
case fault::EVENT: return "EVENT";
case fault::STATE: return "STATE";
case fault::INTERRUPT: return "INTERRUPT";
}
return "??????";
}
ircd::string_view
ircd::m::vm::reflect(const enum eval::phase &phase)
{
switch(phase)
{
case eval::phase::ACCEPT: return "ACCEPT";
case eval::phase::ENTER: return "ENTER";
}
return "??????";
}
//
// accepted
//
ircd::m::vm::accepted::accepted(const m::event &event,
const vm::opts *const &opts,
const event::conforms *const &report)
:m::event{event}
,context{ctx::current}
,opts{opts}
,report{report}
{
}
///////////////////////////////////////////////////////////////////////////////
//
// m/keys.h
//
bool
ircd::m::verify(const m::keys &keys)
{
using prototype = bool (const m::keys &) noexcept;
static import<prototype> function
{
"key_keys", "verify__keys"
};
return function(keys);
}
//
// m::self
//
ircd::ed25519::sk
ircd::m::self::secret_key
{};
ircd::ed25519::pk
ircd::m::self::public_key
{};
std::string
ircd::m::self::public_key_b64
{};
std::string
ircd::m::self::public_key_id
{};
std::string
ircd::m::self::tls_cert_der
{};
std::string
ircd::m::self::tls_cert_der_sha256_b64
{};
//
// keys
//
void
ircd::m::keys::get(const string_view &server_name,
const closure &closure)
{
return get(server_name, "", closure);
}
void
ircd::m::keys::get(const string_view &server_name,
const string_view &key_id,
const closure &closure_)
{
using prototype = void (const string_view &, const string_view &, const closure &);
static import<prototype> function
{
"key_keys", "get__keys"
};
return function(server_name, key_id, closure_);
}
bool
ircd::m::keys::query(const string_view &query_server,
const queries &queries_,
const closure_bool &closure)
{
using prototype = bool (const string_view &, const queries &, const closure_bool &);
static import<prototype> function
{
"key_keys", "query__keys"
};
return function(query_server, queries_, closure);
}
//
// init
//
ircd::m::keys::init::init(const json::object &config)
:config{config}
{
certificate();
signing();
}
ircd::m::keys::init::~init()
noexcept
{
}
void
ircd::m::keys::init::certificate()
{
const string_view origin
{
unquote(this->config.at({"ircd", "origin"}))
};
const json::object config
{
this->config.at({"origin", origin})
};
const std::string private_key_file
{
unquote(config.get("ssl_private_key_pem_path"))
};
const std::string public_key_file
{
unquote(config.get("ssl_public_key_pem_path", private_key_file + ".pub"))
};
if(!private_key_file)
throw user_error
{
"You must specify an SSL private key file at"
" origin.[%s].ssl_private_pem_path even if you do not have one;"
" it will be created there.",
origin
};
if(!fs::exists(private_key_file))
{
log::warning
{
"Failed to find certificate private key @ `%s'; creating...",
private_key_file
};
openssl::genrsa(private_key_file, public_key_file);
}
const std::string cert_file
{
unquote(config.get("ssl_certificate_pem_path"))
};
if(!cert_file)
throw user_error
{
"You must specify an SSL certificate file path in the config at"
" origin.[%s].ssl_certificate_pem_path even if you do not have one;"
" it will be created there.",
origin
};
if(!fs::exists(cert_file))
{
if(!this->config.has({"certificate", origin, "subject"}))
throw user_error
{
"Failed to find SSL certificate @ `%s'. Additionally, no"
" certificate.[%s].subject was found in the conf to generate one.",
cert_file,
origin
};
log::warning
{
"Failed to find SSL certificate @ `%s'; creating for '%s'...",
cert_file,
origin
};
const unique_buffer<mutable_buffer> buf
{
1_MiB
};
const json::strung opts{json::members
{
{ "private_key_pem_path", private_key_file },
{ "public_key_pem_path", public_key_file },
{ "subject", this->config.get({"certificate", origin, "subject"}) }
}};
const auto cert
{
openssl::genX509_rsa(buf, opts)
};
fs::overwrite(cert_file, cert);
}
const auto cert_pem
{
fs::read(cert_file)
};
const unique_buffer<mutable_buffer> der_buf
{
8_KiB
};
const auto cert_der
{
openssl::cert2d(der_buf, cert_pem)
};
const fixed_buffer<const_buffer, crh::sha256::digest_size> hash
{
sha256{cert_der}
};
self::tls_cert_der_sha256_b64 =
{
b64encode_unpadded(hash)
};
log.info("Certificate `%s' :PEM %zu bytes; DER %zu bytes; sha256b64 %s",
cert_file,
cert_pem.size(),
ircd::size(cert_der),
self::tls_cert_der_sha256_b64);
thread_local char print_buf[8_KiB];
log.info("Certificate `%s' :%s",
cert_file,
openssl::print_subject(print_buf, cert_pem));
}
void
ircd::m::keys::init::signing()
{
const string_view origin
{
unquote(this->config.at({"ircd", "origin"}))
};
const json::object config
{
this->config.at({"origin", unquote(origin)})
};
const std::string sk_file
{
unquote(config.get("ed25519_private_key_path"))
};
if(!sk_file)
throw user_error
{
"Failed to find ed25519 secret key path at"
" origin.[%s].ed25519_private_key_path in config. If you do not"
" have a private key, specify a path for one to be created.",
origin
};
if(fs::exists(sk_file))
log.info("Using ed25519 secret key @ `%s'", sk_file);
else
log.notice("Creating ed25519 secret key @ `%s'", sk_file);
self::secret_key = ed25519::sk
{
sk_file, &self::public_key
};
self::public_key_b64 = b64encode_unpadded(self::public_key);
const fixed_buffer<const_buffer, sha256::digest_size> hash
{
sha256{self::public_key}
};
const auto public_key_hash_b58
{
b58encode(hash)
};
static const auto trunc_size{8};
self::public_key_id = fmt::snstringf
{
BUFSIZE, "ed25519:%s", trunc(public_key_hash_b58, trunc_size)
};
log.info("Current key is '%s' and the public key is: %s",
self::public_key_id,
self::public_key_b64);
}
///////////////////////////////////////////////////////////////////////////////
//
// m/receipt.h
//
ircd::m::event::id::buf
ircd::m::receipt::read(const id::room &room_id,
const id::user &user_id,
const id::event &event_id)
{
return read(room_id, user_id, event_id, ircd::time<milliseconds>());
}
ircd::m::event::id::buf
ircd::m::receipt::read(const id::room &room_id,
const id::user &user_id,
const id::event &event_id,
const time_t &ms)
{
using prototype = event::id::buf (const id::room &, const id::user &, const id::event &, const time_t &);
static import<prototype> function
{
"client_rooms", "commit__m_receipt_m_read"
};
return function(room_id, user_id, event_id, ms);
}
///////////////////////////////////////////////////////////////////////////////
//
// m/typing.h
//
ircd::m::event::id::buf
ircd::m::typing::set(const m::typing &object)
{
using prototype = event::id::buf (const m::typing &);
static import<prototype> function
{
"client_rooms", "commit__m_typing"
};
return function(object);
}
///////////////////////////////////////////////////////////////////////////////
//
// m/presence.h
//
ircd::m::presence::presence(const user &user,
const mutable_buffer &buf)
:presence
{
get(user, buf)
}
{
}
ircd::m::event::id::buf
ircd::m::presence::set(const user &user,
const string_view &presence,
const string_view &status_msg)
{
return set(m::presence
{
{ "user_id", user.user_id },
{ "presence", presence },
{ "status_msg", status_msg },
});
}
ircd::m::event::id::buf
ircd::m::presence::set(const presence &object)
{
using prototype = event::id::buf (const presence &);
static import<prototype> function
{
"client_presence", "commit__m_presence"
};
return function(object);
}
ircd::json::object
ircd::m::presence::get(const user &user,
const mutable_buffer &buffer)
{
json::object ret;
get(std::nothrow, user, [&ret, &buffer]
(const json::object &object)
{
ret = { data(buffer), copy(buffer, object) };
});
return ret;
}
void
ircd::m::presence::get(const user &user,
const closure &closure)
{
get(user, [&closure]
(const m::event &event, const json::object &content)
{
closure(content);
});
}
void
ircd::m::presence::get(const user &user,
const event_closure &closure)
{
if(!get(std::nothrow, user, closure))
throw m::NOT_FOUND
{
"No presence found for %s",
string_view{user.user_id}
};
}
bool
ircd::m::presence::get(std::nothrow_t,
const user &user,
const closure &closure)
{
return get(std::nothrow, user, [&closure]
(const m::event &event, const json::object &content)
{
closure(content);
});
}
bool
ircd::m::presence::get(std::nothrow_t,
const user &user,
const event_closure &closure)
{
using prototype = bool (std::nothrow_t, const m::user &, const event_closure &);
static import<prototype> function
{
"client_presence", "m_presence_get"
};
return function(std::nothrow, user, closure);
}
bool
ircd::m::presence::valid_state(const string_view &state)
{
using prototype = bool (const string_view &);
static import<prototype> function
{
"m_presence", "presence_valid_state"
};
return function(state);
}
///////////////////////////////////////////////////////////////////////////////
//
// m/node.h
//
/// ID of the room which indexes all nodes (an instance of the room is
/// provided below).
const ircd::m::room::id::buf
nodes_room_id
{
"nodes", ircd::my_host()
};
/// The nodes room is the database of all nodes. It primarily serves as an
/// indexing mechanism and for top-level node related keys.
///
const ircd::m::room
ircd::m::nodes
{
nodes_room_id
};
ircd::m::node
ircd::m::create(const id::node &node_id,
const json::members &args)
{
using prototype = node (const id::node &, const json::members &);
static import<prototype> function
{
"s_node", "create_node"
};
assert(node_id);
return function(node_id, args);
}
bool
ircd::m::exists(const node::id &node_id)
{
using prototype = bool (const node::id &);
static import<prototype> function
{
"s_node", "exists__nodeid"
};
return function(node_id);
}
bool
ircd::m::my(const node &node)
{
return my(node.node_id);
}
//
// node
//
void
ircd::m::node::key(const string_view &key_id,
const ed25519_closure &closure)
const
{
key(key_id, key_closure{[&closure]
(const string_view &keyb64)
{
const ed25519::pk pk
{
[&keyb64](auto &buf)
{
b64decode(buf, unquote(keyb64));
}
};
closure(pk);
}});
}
void
ircd::m::node::key(const string_view &key_id,
const key_closure &closure)
const
{
const auto &server_name
{
node_id.hostname()
};
m::keys::get(server_name, key_id, [&closure, &key_id]
(const json::object &keys)
{
const json::object &vks
{
keys.at("verify_keys")
};
const json::object &vkk
{
vks.at(key_id)
};
const string_view &key
{
vkk.at("key")
};
closure(key);
});
}
/// Generates a node-room ID into buffer; see room_id() overload.
ircd::m::id::room::buf
ircd::m::node::room_id()
const
{
ircd::m::id::room::buf buf;
return buf.assigned(room_id(buf));
}
/// This generates a room mxid for the "node's room" essentially serving as
/// a database mechanism for this specific node. This room_id is a hash of
/// the node's full mxid.
///
ircd::m::id::room
ircd::m::node::room_id(const mutable_buffer &buf)
const
{
assert(!empty(node_id));
const sha256::buf hash
{
sha256{node_id}
};
char b58[size(hash) * 2];
return
{
buf, b58encode(b58, hash), my_host()
};
}
//
// node::room
//
ircd::m::node::room::room(const m::node::id &node_id)
:room{m::node{node_id}}
{}
ircd::m::node::room::room(const m::node &node)
:node{node}
,room_id{node.room_id()}
{
static_cast<m::room &>(*this) = room_id;
}
///////////////////////////////////////////////////////////////////////////////
//
// m/events.h
//
bool
ircd::m::events::rfor_each(const event::idx &start,
const event_filter &filter,
const closure_bool &closure)
{
auto limit
{
json::get<"limit"_>(filter)?: 32L
};
return rfor_each(start, [&filter, &closure, &limit]
(const event::idx &event_idx, const m::event &event)
-> bool
{
if(!match(filter, event))
return true;
if(!closure(event_idx, event))
return false;
return --limit;
});
}
bool
ircd::m::events::rfor_each(const event::idx &start,
const closure_bool &closure)
{
event::fetch event;
return rfor_each(start, id_closure_bool{[&event, &closure]
(const event::idx &event_idx, const event::id &event_id)
{
if(!seek(event, event_idx, std::nothrow))
return true;
return closure(event_idx, event);
}});
}
bool
ircd::m::events::rfor_each(const event::idx &start,
const id_closure_bool &closure)
{
static constexpr auto column_idx
{
json::indexof<event, "event_id"_>()
};
auto &column
{
dbs::event_column.at(column_idx)
};
if(start == uint64_t(-1))
{
for(auto it(column.rbegin()); it; ++it)
if(!closure(byte_view<event::idx>(it->first), it->second))
return false;
return true;
}
auto it
{
column.lower_bound(byte_view<string_view>(start))
};
for(; it; ++it)
if(!closure(byte_view<event::idx>(it->first), it->second))
return false;
return true;
}
bool
ircd::m::events::for_each(const event::idx &start,
const event_filter &filter,
const closure_bool &closure)
{
auto limit
{
json::get<"limit"_>(filter)?: 32L
};
return for_each(start, [&filter, &closure, &limit]
(const event::idx &event_idx, const m::event &event)
-> bool
{
if(!match(filter, event))
return true;
if(!closure(event_idx, event))
return false;
return --limit;
});
}
bool
ircd::m::events::for_each(const event::idx &start,
const closure_bool &closure)
{
event::fetch event;
return for_each(start, id_closure_bool{[&event, &closure]
(const event::idx &event_idx, const event::id &event_id)
{
if(!seek(event, event_idx, std::nothrow))
return true;
return closure(event_idx, event);
}});
}
bool
ircd::m::events::for_each(const event::idx &start,
const id_closure_bool &closure)
{
static constexpr auto column_idx
{
json::indexof<event, "event_id"_>()
};
auto &column
{
dbs::event_column.at(column_idx)
};
auto it
{
start > 0?
column.lower_bound(byte_view<string_view>(start)):
column.begin()
};
for(; it; ++it)
if(!closure(byte_view<event::idx>(it->first), it->second))
return false;
return true;
}
///////////////////////////////////////////////////////////////////////////////
//
// m/filter.h
//
//TODO: globular expression
//TODO: tribool for contains_url; we currently ignore the false value.
bool
ircd::m::match(const room_event_filter &filter,
const event &event)
{
if(json::get<"contains_url"_>(filter) == true)
if(!at<"content"_>(event).has("url"))
return false;
for(const auto &room_id : json::get<"not_rooms"_>(filter))
if(at<"room_id"_>(event) == unquote(room_id))
return false;
if(empty(json::get<"rooms"_>(filter)))
return match(event_filter{filter}, event);
for(const auto &room_id : json::get<"rooms"_>(filter))
if(at<"room_id"_>(event) == unquote(room_id))
return match(event_filter{filter}, event);
return false;
}
//TODO: globular expression
bool
ircd::m::match(const event_filter &filter,
const event &event)
{
for(const auto &type : json::get<"not_types"_>(filter))
if(at<"type"_>(event) == unquote(type))
return false;
for(const auto &sender : json::get<"not_senders"_>(filter))
if(at<"sender"_>(event) == unquote(sender))
return false;
if(empty(json::get<"senders"_>(filter)) && empty(json::get<"types"_>(filter)))
return true;
if(empty(json::get<"senders"_>(filter)))
{
for(const auto &type : json::get<"types"_>(filter))
if(at<"type"_>(event) == unquote(type))
return true;
return false;
}
if(empty(json::get<"types"_>(filter)))
{
for(const auto &sender : json::get<"senders"_>(filter))
if(at<"sender"_>(event) == unquote(sender))
return true;
return false;
}
return true;
}
//
// filter
//
ircd::m::filter::filter(const user &user,
const string_view &filter_id,
const mutable_buffer &buf)
{
get(user, filter_id, [this, &buf]
(const json::object &filter)
{
const size_t len
{
copy(buf, string_view{filter})
};
new (this) m::filter
{
json::object
{
data(buf), len
}
};
});
}
//
// room_filter
//
ircd::m::room_filter::room_filter(const mutable_buffer &buf,
const json::members &members)
:super_type::tuple
{
json::stringify(mutable_buffer{buf}, members)
}
{
}
//
// room_event_filter
//
ircd::m::room_event_filter::room_event_filter(const mutable_buffer &buf,
const json::members &members)
:super_type::tuple
{
json::stringify(mutable_buffer{buf}, members)
}
{
}
//
// event_filter
//
ircd::m::event_filter::event_filter(const mutable_buffer &buf,
const json::members &members)
:super_type::tuple
{
json::stringify(mutable_buffer{buf}, members)
}
{
}
///////////////////////////////////////////////////////////////////////////////
//
// m/rooms.h
//
void
ircd::m::rooms::for_each(const user &user,
const user::rooms::closure &closure)
{
const m::user::rooms rooms{user};
rooms.for_each(closure);
}
void
ircd::m::rooms::for_each(const user &user,
const user::rooms::closure_bool &closure)
{
const m::user::rooms rooms{user};
rooms.for_each(closure);
}
void
ircd::m::rooms::for_each(const user &user,
const string_view &membership,
const user::rooms::closure &closure)
{
const m::user::rooms rooms{user};
rooms.for_each(membership, closure);
}
void
ircd::m::rooms::for_each(const user &user,
const string_view &membership,
const user::rooms::closure_bool &closure)
{
const m::user::rooms rooms{user};
rooms.for_each(membership, closure);
}
void
ircd::m::rooms::for_each(const room::closure &closure)
{
for_each(room::closure_bool{[&closure]
(const room &room)
{
closure(room);
return true;
}});
}
void
ircd::m::rooms::for_each(const room::closure_bool &closure)
{
for_each(room::id::closure_bool{[&closure]
(const room::id &room_id)
{
return closure(room_id);
}});
}
void
ircd::m::rooms::for_each(const room::id::closure &closure)
{
for_each(room::id::closure_bool{[&closure]
(const room::id &room_id)
{
closure(room_id);
return true;
}});
}
void
ircd::m::rooms::for_each(const room::id::closure_bool &closure)
{
const room::state state
{
my_room
};
state.test("ircd.room", room::state::keys_bool{[&closure]
(const string_view &key)
{
return !closure(key);
}});
}
///////////////////////////////////////////////////////////////////////////////
//
// m/user.h
//
/// ID of the room which indexes all users (an instance of the room is
/// provided below).
const ircd::m::room::id::buf
users_room_id
{
"users", ircd::my_host()
};
/// The users room is the database of all users. It primarily serves as an
/// indexing mechanism and for top-level user related keys. Accounts
/// registered on this server will be among state events in this room.
/// Users do not have access to this room, it is used internally.
///
ircd::m::room
ircd::m::user::users
{
users_room_id
};
/// ID of the room which stores ephemeral tokens (an instance of the room is
/// provided below).
const ircd::m::room::id::buf
tokens_room_id
{
"tokens", ircd::my_host()
};
/// The tokens room serves as a key-value lookup for various tokens to
/// users, etc. It primarily serves to store access tokens for users. This
/// is a separate room from the users room because in the future it may
/// have an optimized configuration as well as being more easily cleared.
///
ircd::m::room
ircd::m::user::tokens
{
tokens_room_id
};
ircd::m::user
ircd::m::create(const id::user &user_id,
const json::members &contents)
{
using prototype = user (const id::user &, const json::members &);
static import<prototype> function
{
"client_user", "user_create"
};
return function(user_id, contents);
}
bool
ircd::m::exists(const user::id &user_id)
{
return user::users.has("ircd.user", user_id);
}
bool
ircd::m::exists(const user &user)
{
return exists(user.user_id);
}
bool
ircd::m::my(const user &user)
{
return my(user.user_id);
}
//
// user
//
/// Generates a user-room ID into buffer; see room_id() overload.
ircd::m::id::room::buf
ircd::m::user::room_id()
const
{
ircd::m::id::room::buf buf;
return buf.assigned(room_id(buf));
}
/// This generates a room mxid for the "user's room" essentially serving as
/// a database mechanism for this specific user. This room_id is a hash of
/// the user's full mxid.
///
ircd::m::id::room
ircd::m::user::room_id(const mutable_buffer &buf)
const
{
assert(!empty(user_id));
const ripemd160::buf hash
{
ripemd160{user_id}
};
char b58[size(hash) * 2];
return
{
buf, b58encode(b58, hash), my_host()
};
}
ircd::string_view
ircd::m::user::gen_access_token(const mutable_buffer &buf)
{
static const size_t token_max{32};
static const auto &token_dict{rand::dict::alpha};
const mutable_buffer out
{
data(buf), std::min(token_max, size(buf))
};
return rand::string(token_dict, out);
}
ircd::m::event::id::buf
ircd::m::user::activate()
{
using prototype = event::id::buf (const m::user &);
static import<prototype> function
{
"client_account", "activate__user"
};
return function(*this);
}
ircd::m::event::id::buf
ircd::m::user::deactivate()
{
using prototype = event::id::buf (const m::user &);
static import<prototype> function
{
"client_account", "deactivate__user"
};
return function(*this);
}
bool
ircd::m::user::is_active()
const
{
using prototype = bool (const m::user &);
static import<prototype> function
{
"client_account", "is_active__user"
};
return function(*this);
}
ircd::m::event::id::buf
ircd::m::user::filter(const json::object &filter,
const mutable_buffer &idbuf)
{
using prototype = event::id::buf (const m::user &, const json::object &, const mutable_buffer &);
static import<prototype> function
{
"client_user", "filter_set"
};
return function(*this, filter, idbuf);
}
std::string
ircd::m::user::filter(const string_view &filter_id)
const
{
std::string ret;
filter(filter_id, [&ret]
(const json::object &filter)
{
ret.assign(data(filter), size(filter));
});
return ret;
}
std::string
ircd::m::user::filter(std::nothrow_t,
const string_view &filter_id)
const
{
std::string ret;
filter(std::nothrow, filter_id, [&ret]
(const json::object &filter)
{
ret.assign(data(filter), size(filter));
});
return ret;
}
void
ircd::m::user::filter(const string_view &filter_id,
const filter_closure &closure)
const
{
if(!filter(std::nothrow, filter_id, closure))
throw m::NOT_FOUND
{
"Filter '%s' not found", filter_id
};
}
bool
ircd::m::user::filter(std::nothrow_t,
const string_view &filter_id,
const filter_closure &closure)
const
{
using prototype = bool (std::nothrow_t, const m::user &, const string_view &, const filter_closure &);
static import<prototype> function
{
"client_user", "filter_get"
};
return function(std::nothrow, *this, filter_id, closure);
}
ircd::m::event::id::buf
ircd::m::user::account_data(const m::user &sender,
const string_view &type,
const json::object &val)
{
using prototype = event::id::buf (const m::user &, const m::user &, const string_view &, const json::object &);
static import<prototype> function
{
"client_user", "account_data_set"
};
return function(*this, sender, type, val);
}
ircd::json::object
ircd::m::user::account_data(const mutable_buffer &out,
const string_view &type)
const
{
json::object ret;
account_data(std::nothrow, type, [&out, &ret]
(const json::object &val)
{
ret = string_view { data(out), copy(out, val) };
});
return ret;
}
bool
ircd::m::user::account_data(std::nothrow_t,
const string_view &type,
const account_data_closure &closure)
const try
{
account_data(type, closure);
return true;
}
catch(const std::exception &e)
{
return false;
}
void
ircd::m::user::account_data(const string_view &type,
const account_data_closure &closure)
const
{
using prototype = void (const m::user &, const string_view &, const account_data_closure &);
static import<prototype> function
{
"client_user", "account_data_get"
};
return function(*this, type, closure);
}
ircd::m::event::id::buf
ircd::m::user::profile(const m::user &sender,
const string_view &key,
const string_view &val)
{
using prototype = event::id::buf (const m::user &, const m::user &, const string_view &, const string_view &);
static import<prototype> function
{
"client_profile", "profile_set"
};
return function(*this, sender, key, val);
}
ircd::string_view
ircd::m::user::profile(const mutable_buffer &out,
const string_view &key)
const
{
string_view ret;
profile(std::nothrow, key, [&out, &ret]
(const string_view &val)
{
ret = { data(out), copy(out, val) };
});
return ret;
}
bool
ircd::m::user::profile(std::nothrow_t,
const string_view &key,
const profile_closure &closure)
const try
{
profile(key, closure);
return true;
}
catch(const std::exception &e)
{
return false;
}
void
ircd::m::user::profile(const string_view &key,
const profile_closure &closure)
const
{
using prototype = void (const m::user &, const string_view &, const profile_closure &);
static import<prototype> function
{
"client_profile", "profile_get"
};
return function(*this, key, closure);
}
ircd::m::event::id::buf
ircd::m::user::password(const string_view &password)
{
using prototype = event::id::buf (const m::user::id &, const string_view &) noexcept;
static import<prototype> function
{
"client_account", "set_password"
};
return function(user_id, password);
}
bool
ircd::m::user::is_password(const string_view &password)
const noexcept try
{
using prototype = bool (const m::user::id &, const string_view &) noexcept;
static import<prototype> function
{
"client_account", "is_password"
};
return function(user_id, password);
}
catch(const std::exception &e)
{
log::critical
{
"user::is_password(): %s %s",
string_view{user_id},
e.what()
};
return false;
}
//
// user::room
//
ircd::m::user::room::room(const m::user::id &user_id)
:room{m::user{user_id}}
{}
ircd::m::user::room::room(const m::user &user)
:user{user}
,room_id{user.room_id()}
{
static_cast<m::room &>(*this) = room_id;
}
//
// user::rooms
//
ircd::m::user::rooms::rooms(const m::user &user)
:user_room{user}
{
}
size_t
ircd::m::user::rooms::count()
const
{
size_t ret{0};
for_each([&ret]
(const m::room &, const string_view &membership)
{
++ret;
});
return ret;
}
size_t
ircd::m::user::rooms::count(const string_view &membership)
const
{
size_t ret{0};
for_each(membership, [&ret]
(const m::room &, const string_view &membership)
{
++ret;
});
return ret;
}
void
ircd::m::user::rooms::for_each(const closure &closure)
const
{
for_each(closure_bool{[&closure]
(const m::room &room, const string_view &membership)
{
closure(room, membership);
return true;
}});
}
void
ircd::m::user::rooms::for_each(const closure_bool &closure)
const
{
const m::room::state state{user_room};
state.test("ircd.member", [&closure]
(const m::event &event)
{
const m::room::id &room_id
{
at<"state_key"_>(event)
};
const string_view &membership
{
unquote(at<"content"_>(event).at("membership"))
};
return !closure(room_id, membership);
});
}
void
ircd::m::user::rooms::for_each(const string_view &membership,
const closure &closure)
const
{
for_each(membership, closure_bool{[&closure]
(const m::room &room, const string_view &membership)
{
closure(room, membership);
return true;
}});
}
void
ircd::m::user::rooms::for_each(const string_view &membership,
const closure_bool &closure)
const
{
if(empty(membership))
return for_each(closure);
const m::room::state state{user_room};
state.test("ircd.member", [&membership, &closure]
(const m::event &event)
{
const string_view &membership_
{
unquote(at<"content"_>(event).at("membership"))
};
if(membership_ != membership)
return false;
const m::room::id &room_id
{
at<"state_key"_>(event)
};
return !closure(room_id, membership);
});
}
//
// user::rooms::origins
//
ircd::m::user::rooms::origins::origins(const m::user &user)
:user{user}
{
}
void
ircd::m::user::rooms::origins::for_each(const closure &closure)
const
{
for_each(string_view{}, closure);
}
void
ircd::m::user::rooms::origins::for_each(const closure_bool &closure)
const
{
for_each(string_view{}, closure);
}
void
ircd::m::user::rooms::origins::for_each(const string_view &membership,
const closure &closure)
const
{
for_each(membership, closure_bool{[&closure]
(const string_view &origin)
{
closure(origin);
return true;
}});
}
void
ircd::m::user::rooms::origins::for_each(const string_view &membership,
const closure_bool &closure)
const
{
const m::user::rooms rooms
{
user
};
std::set<std::string, std::less<>> seen;
rooms.for_each(membership, rooms::closure_bool{[&closure, &seen]
(const m::room &room, const string_view &membership)
{
const m::room::origins origins{room};
return !origins.test([&closure, &seen]
(const string_view &origin)
{
const auto it
{
seen.lower_bound(origin)
};
if(it != end(seen) && *it == origin)
return false;
seen.emplace_hint(it, std::string{origin});
return !closure(origin);
});
}});
}
//
// user::mitsein
//
ircd::m::user::mitsein::mitsein(const m::user &user)
:user{user}
{
}
size_t
ircd::m::user::mitsein::count(const string_view &membership)
const
{
size_t ret{0};
for_each(membership, [&ret](const m::user &)
{
++ret;
});
return ret;
}
size_t
ircd::m::user::mitsein::count(const m::user &user,
const string_view &membership)
const
{
size_t ret{0};
for_each(user, membership, [&ret](const m::room &, const string_view &)
{
++ret;
});
return ret;
}
void
ircd::m::user::mitsein::for_each(const closure &closure)
const
{
for_each(string_view{}, closure);
}
void
ircd::m::user::mitsein::for_each(const closure_bool &closure)
const
{
for_each(string_view{}, closure);
}
void
ircd::m::user::mitsein::for_each(const string_view &membership,
const closure &closure)
const
{
for_each(membership, closure_bool{[&closure]
(const m::user &user)
{
closure(user);
return true;
}});
}
void
ircd::m::user::mitsein::for_each(const string_view &membership,
const closure_bool &closure)
const
{
const m::user::rooms rooms
{
user
};
// here we gooooooo :/
///TODO: ideal: db schema
///TODO: minimally: custom alloc?
std::set<std::string, std::less<>> seen;
rooms.for_each(membership, rooms::closure_bool{[&membership, &closure, &seen]
(const m::room &room, const string_view &)
{
const m::room::members members{room};
return !members.test(membership, [&seen, &closure]
(const m::event &event)
{
const auto &other
{
at<"state_key"_>(event)
};
const auto it
{
seen.lower_bound(other)
};
if(it != end(seen) && *it == other)
return false;
seen.emplace_hint(it, std::string{other});
return !closure(m::user{other});
});
}});
}
void
ircd::m::user::mitsein::for_each(const m::user &user,
const rooms::closure &closure)
const
{
for_each(user, string_view{}, closure);
}
void
ircd::m::user::mitsein::for_each(const m::user &user,
const rooms::closure_bool &closure)
const
{
for_each(user, string_view{}, closure);
}
void
ircd::m::user::mitsein::for_each(const m::user &user,
const string_view &membership,
const rooms::closure &closure)
const
{
for_each(user, membership, rooms::closure_bool{[&membership, &closure]
(const m::room &room, const string_view &)
{
closure(room, membership);
return true;
}});
}
void
ircd::m::user::mitsein::for_each(const m::user &user,
const string_view &membership,
const rooms::closure_bool &closure)
const
{
const m::user::rooms our_rooms{this->user};
const m::user::rooms their_rooms{user};
const bool use_our
{
our_rooms.count() <= their_rooms.count()
};
const m::user::rooms &rooms
{
use_our? our_rooms : their_rooms
};
const string_view &test_key
{
use_our? user.user_id : this->user.user_id
};
rooms.for_each(membership, rooms::closure_bool{[&membership, &closure, &test_key]
(const m::room &room, const string_view &)
{
if(!room.has("m.room.member", test_key))
return true;
return closure(room, membership);
}});
}
///////////////////////////////////////////////////////////////////////////////
//
// m/room.h
//
ircd::m::room
ircd::m::create(const id::room &room_id,
const id::user &creator,
const string_view &type)
{
using prototype = room (const id::room &, const id::user &, const string_view &);
static import<prototype> function
{
"client_createroom", "createroom__type"
};
return function(room_id, creator, type);
}
ircd::m::room
ircd::m::create(const id::room &room_id,
const id::user &creator,
const id::room &parent,
const string_view &type)
{
using prototype = room (const id::room &, const id::user &, const id::room &, const string_view &);
static import<prototype> function
{
"client_createroom", "createroom__parent_type"
};
return function(room_id, creator, parent, type);
}
ircd::m::event::id::buf
ircd::m::join(const id::room_alias &room_alias,
const id::user &user_id)
{
using prototype = event::id::buf (const id::room_alias &, const id::user &);
static import<prototype> function
{
"client_rooms", "join__alias_user"
};
return function(room_alias, user_id);
}
ircd::m::event::id::buf
ircd::m::join(const room &room,
const id::user &user_id)
{
using prototype = event::id::buf (const m::room &, const id::user &);
static import<prototype> function
{
"client_rooms", "join__room_user"
};
return function(room, user_id);
}
ircd::m::event::id::buf
ircd::m::leave(const room &room,
const id::user &user_id)
{
using prototype = event::id::buf (const m::room &, const id::user &);
static import<prototype> function
{
"client_rooms", "leave__room_user"
};
return function(room, user_id);
}
ircd::m::event::id::buf
ircd::m::invite(const room &room,
const id::user &target,
const id::user &sender)
{
using prototype = event::id::buf (const m::room &, const id::user &, const id::user &);
static import<prototype> function
{
"client_rooms", "invite__room_user"
};
return function(room, target, sender);
}
ircd::m::event::id::buf
ircd::m::redact(const room &room,
const id::user &sender,
const id::event &event_id,
const string_view &reason)
{
using prototype = event::id::buf (const m::room &, const id::user &, const id::event &, const string_view &);
static import<prototype> function
{
"client_rooms", "redact__"
};
return function(room, sender, event_id, reason);
}
ircd::m::event::id::buf
ircd::m::notice(const room &room,
const string_view &body)
{
return message(room, me.user_id, body, "m.notice");
}
ircd::m::event::id::buf
ircd::m::notice(const room &room,
const m::id::user &sender,
const string_view &body)
{
return message(room, sender, body, "m.notice");
}
ircd::m::event::id::buf
ircd::m::msghtml(const room &room,
const m::id::user &sender,
const string_view &html,
const string_view &alt,
const string_view &msgtype)
{
return message(room, sender,
{
{ "msgtype", msgtype },
{ "format", "org.matrix.custom.html" },
{ "body", { alt?: html, json::STRING } },
{ "formatted_body", { html, json::STRING } },
});
}
ircd::m::event::id::buf
ircd::m::message(const room &room,
const m::id::user &sender,
const string_view &body,
const string_view &msgtype)
{
return message(room, sender,
{
{ "body", { body, json::STRING } },
{ "msgtype", { msgtype, json::STRING } },
});
}
ircd::m::event::id::buf
ircd::m::message(const room &room,
const m::id::user &sender,
const json::members &contents)
{
return send(room, sender, "m.room.message", contents);
}
ircd::m::event::id::buf
ircd::m::send(const room &room,
const m::id::user &sender,
const string_view &type,
const string_view &state_key,
const json::members &contents)
{
json::iov _content;
json::iov::push content[contents.size()];
return send(room, sender, type, state_key, make_iov(_content, content, contents.size(), contents));
}
ircd::m::event::id::buf
ircd::m::send(const room &room,
const m::id::user &sender,
const string_view &type,
const string_view &state_key,
const json::object &contents)
{
json::iov _content;
json::iov::push content[contents.size()];
return send(room, sender, type, state_key, make_iov(_content, content, contents.size(), contents));
}
ircd::m::event::id::buf
ircd::m::send(const room &room,
const m::id::user &sender,
const string_view &type,
const string_view &state_key,
const json::iov &content)
{
using prototype = event::id::buf (const m::room &, const id::user &, const string_view &, const string_view &, const json::iov &);
static import<prototype> function
{
"client_rooms", "state__iov"
};
return function(room, sender, type, state_key, content);
}
ircd::m::event::id::buf
ircd::m::send(const room &room,
const m::id::user &sender,
const string_view &type,
const json::members &contents)
{
json::iov _content;
json::iov::push content[contents.size()];
return send(room, sender, type, make_iov(_content, content, contents.size(), contents));
}
ircd::m::event::id::buf
ircd::m::send(const room &room,
const m::id::user &sender,
const string_view &type,
const json::object &contents)
{
json::iov _content;
json::iov::push content[contents.size()];
return send(room, sender, type, make_iov(_content, content, contents.size(), contents));
}
ircd::m::event::id::buf
ircd::m::send(const room &room,
const m::id::user &sender,
const string_view &type,
const json::iov &content)
{
using prototype = event::id::buf (const m::room &, const id::user &, const string_view &, const json::iov &);
static import<prototype> function
{
"client_rooms", "send__iov"
};
return function(room, sender, type, content);
}
ircd::m::event::id::buf
ircd::m::commit(const room &room,
json::iov &event,
const json::iov &contents)
{
vm::copts opts
{
room.opts? *room.opts : vm::default_copts
};
// Some functionality on this server may create an event on behalf
// of remote users. It's safe for us to mask this here, but eval'ing
// this event in any replay later will require special casing.
opts.non_conform |= event::conforms::MISMATCH_ORIGIN_SENDER;
// Stupid protocol workaround
opts.non_conform |= event::conforms::MISSING_PREV_STATE;
// Don't need this here
opts.verify = false;
vm::eval eval
{
opts
};
eval(room, event, contents);
return eval.event_id;
}
ircd::m::id::room::buf
ircd::m::room_id(const id::room_alias &room_alias)
{
char buf[256];
return room_id(buf, room_alias);
}
ircd::m::id::room::buf
ircd::m::room_id(const string_view &room_id_or_alias)
{
char buf[256];
return room_id(buf, room_id_or_alias);
}
ircd::m::id::room
ircd::m::room_id(const mutable_buffer &out,
const string_view &room_id_or_alias)
{
switch(m::sigil(room_id_or_alias))
{
case id::ROOM:
return id::room{out, room_id_or_alias};
default:
return room_id(out, id::room_alias{room_id_or_alias});
}
}
ircd::m::id::room
ircd::m::room_id(const mutable_buffer &out,
const id::room_alias &room_alias)
{
using prototype = id::room (const mutable_buffer &, const id::room_alias &);
static import<prototype> function
{
"client_directory_room", "room_id__room_alias"
};
return function(out, room_alias);
}
bool
ircd::m::exists(const id::room_alias &room_alias,
const bool &remote_query)
{
using prototype = bool (const id::room_alias, const bool &);
static import<prototype> function
{
"client_directory_room", "room_alias_exists"
};
return function(room_alias, remote_query);
}
///////////////////////////////////////////////////////////////////////////////
//
// m/txn.h
//
/// Returns the serial size of the JSON this txn would consume. Note: this
/// creates a json::iov involving a timestamp to figure out the total size
/// of the txn. When the user creates the actual txn a different timestamp
/// is created which may be a different size. Consider using the lower-level
/// create(closure) or add some pad to be sure.
///
size_t
ircd::m::txn::serialized(const array &pdu,
const array &edu,
const array &pdu_failure)
{
size_t ret;
const auto closure{[&ret]
(const json::iov &iov)
{
ret = json::serialized(iov);
}};
create(closure, pdu, edu, pdu_failure);
return ret;
}
/// Stringifies a txn from the inputs into the returned std::string
///
std::string
ircd::m::txn::create(const array &pdu,
const array &edu,
const array &pdu_failure)
{
std::string ret;
const auto closure{[&ret]
(const json::iov &iov)
{
ret = json::strung(iov);
}};
create(closure, pdu, edu, pdu_failure);
return ret;
}
/// Stringifies a txn from the inputs into the buffer
///
ircd::string_view
ircd::m::txn::create(const mutable_buffer &buf,
const array &pdu,
const array &edu,
const array &pdu_failure)
{
string_view ret;
const auto closure{[&buf, &ret]
(const json::iov &iov)
{
ret = json::stringify(mutable_buffer{buf}, iov);
}};
create(closure, pdu, edu, pdu_failure);
return ret;
}
/// Forms a txn from the inputs into a json::iov and presents that iov
/// to the user's closure.
///
void
ircd::m::txn::create(const closure &closure,
const array &pdu,
const array &edu,
const array &pdu_failure)
{
using ircd::size;
json::iov iov;
const json::iov::push push[]
{
{ iov, { "origin", my_host() }},
{ iov, { "origin_server_ts", ircd::time<milliseconds>() }},
};
const json::iov::add_if _pdus
{
iov, !empty(pdu),
{
"pdus", { data(pdu), size(pdu) }
}
};
const json::iov::add_if _edus
{
iov, !empty(edu),
{
"edus", { data(edu), size(edu) }
}
};
const json::iov::add_if _pdu_failures
{
iov, !empty(pdu_failure),
{
"pdu_failures", { data(pdu_failure), size(pdu_failure) }
}
};
closure(iov);
}
ircd::string_view
ircd::m::txn::create_id(const mutable_buffer &out,
const string_view &txn)
{
const sha256::buf hash
{
sha256{txn}
};
const string_view txnid
{
b58encode(out, hash)
};
return txnid;
}
///////////////////////////////////////////////////////////////////////////////
//
// m/hook.h
//
namespace ircd::m
{
static void _hook_fix_state_key(const json::members &, json::member &);
static void _hook_fix_room_id(const json::members &, json::member &);
static void _hook_fix_sender(const json::members &, json::member &);
static json::strung _hook_make_feature(const json::members &);
}
/// Instance list linkage for all hooks
template<>
decltype(ircd::util::instance_list<ircd::m::hook<>>::list)
ircd::util::instance_list<ircd::m::hook<>>::list
{};
/// Alternative hook ctor simply allowing the the function argument
/// first and description after.
ircd::m::hook<>::hook(decltype(function) function,
const json::members &members)
:hook
{
members, std::move(function)
}
{
}
/// Primary hook ctor
ircd::m::hook<>::hook(const json::members &members,
decltype(function) function)
try
:_feature
{
_hook_make_feature(members)
}
,feature
{
_feature
}
,matching
{
feature
}
,function
{
std::move(function)
}
{
site *site;
if((site = find_site()))
site->add(*this);
}
catch(...)
{
if(!registered)
throw;
auto *const site(find_site());
assert(site != nullptr);
site->del(*this);
}
ircd::json::strung
ircd::m::_hook_make_feature(const json::members &members)
{
const ctx::critical_assertion ca;
std::vector<json::member> copy
{
begin(members), end(members)
};
for(auto &member : copy) switch(hash(member.first))
{
case hash("room_id"):
_hook_fix_room_id(members, member);
continue;
case hash("sender"):
_hook_fix_sender(members, member);
continue;
case hash("state_key"):
_hook_fix_state_key(members, member);
continue;
}
return { copy.data(), copy.data() + copy.size() };
}
void
ircd::m::_hook_fix_sender(const json::members &members,
json::member &member)
{
// Rewrite the sender if the supplied input has no hostname
if(valid_local_only(id::USER, member.second))
{
assert(my_host());
thread_local char buf[256];
member.second = id::user { buf, member.second, my_host() };
}
validate(id::USER, member.second);
}
void
ircd::m::_hook_fix_room_id(const json::members &members,
json::member &member)
{
// Rewrite the room_id if the supplied input has no hostname
if(valid_local_only(id::ROOM, member.second))
{
assert(my_host());
thread_local char buf[256];
member.second = id::room { buf, member.second, my_host() };
}
validate(id::ROOM, member.second);
}
void
ircd::m::_hook_fix_state_key(const json::members &members,
json::member &member)
{
const bool is_member_event
{
end(members) != std::find_if(begin(members), end(members), []
(const auto &member)
{
return member.first == "type" && member.second == "m.room.member";
})
};
// Rewrite the sender if the supplied input has no hostname
if(valid_local_only(id::USER, member.second))
{
assert(my_host());
thread_local char buf[256];
member.second = id::user { buf, member.second, my_host() };
}
validate(id::USER, member.second);
}
ircd::m::hook<>::~hook()
noexcept
{
if(!registered)
return;
auto *const site(find_site());
assert(site != nullptr);
site->del(*this);
}
ircd::m::hook<>::site *
ircd::m::hook<>::find_site()
const
{
const auto &site_name
{
this->site_name()
};
if(!site_name)
return nullptr;
for(auto *const &site : m::hook<>::site::list)
if(site->name() == site_name)
return site;
return nullptr;
}
ircd::string_view
ircd::m::hook<>::site_name()
const try
{
return unquote(feature.at("_site"));
}
catch(const std::out_of_range &e)
{
throw assertive
{
"Hook %p must name a '_site' to register with.", this
};
}
bool
ircd::m::hook<>::match(const m::event &event)
const
{
if(json::get<"origin"_>(matching))
if(at<"origin"_>(matching) != json::get<"origin"_>(event))
return false;
if(json::get<"room_id"_>(matching))
if(at<"room_id"_>(matching) != json::get<"room_id"_>(event))
return false;
if(json::get<"sender"_>(matching))
if(at<"sender"_>(matching) != json::get<"sender"_>(event))
return false;
if(json::get<"type"_>(matching))
if(at<"type"_>(matching) != json::get<"type"_>(event))
return false;
if(json::get<"state_key"_>(matching))
if(at<"state_key"_>(matching) != json::get<"state_key"_>(event))
return false;
if(json::get<"membership"_>(matching))
if(at<"membership"_>(matching) != json::get<"membership"_>(event))
return false;
if(json::get<"content"_>(matching))
if(json::get<"type"_>(event) == "m.room.message")
if(at<"content"_>(matching).has("msgtype"))
if(at<"content"_>(matching).get("msgtype") != json::get<"content"_>(event).get("msgtype"))
return false;
return true;
}
//
// hook::site
//
/// Instance list linkage for all hook sites
template<>
decltype(ircd::util::instance_list<ircd::m::hook<>::site>::list)
ircd::util::instance_list<ircd::m::hook<>::site>::list
{};
ircd::m::hook<>::site::site(const json::members &members)
:_feature
{
members
}
,feature
{
_feature
}
{
for(const auto &site : list)
if(site->name() == name() && site != this)
throw error
{
"Hook site '%s' already registered at %p",
name(),
site
};
// Find and register all of the orphan hooks which were constructed before
// this site was constructed.
for(auto *const &hook : m::hook<>::list)
if(hook->site_name() == name())
add(*hook);
}
ircd::m::hook<>::site::~site()
noexcept
{
for(auto *const hook : hooks)
del(*hook);
}
void
ircd::m::hook<>::site::operator()(const event &event)
{
std::set<hook *> matching //TODO: allocator
{
begin(always), end(always)
};
const auto site_match{[&matching]
(auto &map, const string_view &key)
{
auto pit{map.equal_range(key)};
for(; pit.first != pit.second; ++pit.first)
matching.emplace(pit.first->second);
}};
if(json::get<"origin"_>(event))
site_match(origin, at<"origin"_>(event));
if(json::get<"room_id"_>(event))
site_match(room_id, at<"room_id"_>(event));
if(json::get<"sender"_>(event))
site_match(sender, at<"sender"_>(event));
if(json::get<"type"_>(event))
site_match(type, at<"type"_>(event));
if(json::get<"state_key"_>(event))
site_match(state_key, at<"state_key"_>(event));
auto it(begin(matching));
while(it != end(matching))
{
const hook &hook(**it);
if(!hook.match(event))
it = matching.erase(it);
else
++it;
}
for(const auto &hook : matching)
call(*hook, event);
}
void
ircd::m::hook<>::site::call(hook &hook,
const event &event)
try
{
++hook.calls;
hook.function(event);
}
catch(const std::exception &e)
{
log::critical
{
"Unhandled hookfn(%p) %s error :%s",
&hook,
string_view{hook.feature},
e.what()
};
}
bool
ircd::m::hook<>::site::add(hook &hook)
{
assert(!hook.registered);
assert(hook.site_name() == name());
assert(hook.matchers == 0);
if(!hooks.emplace(&hook).second)
{
log::warning
{
"Hook %p already registered to site %s", &hook, name()
};
return false;
}
const auto map{[&hook]
(auto &map, const string_view &value)
{
map.emplace(value, &hook);
++hook.matchers;
}};
if(json::get<"origin"_>(hook.matching))
map(origin, at<"origin"_>(hook.matching));
if(json::get<"room_id"_>(hook.matching))
map(room_id, at<"room_id"_>(hook.matching));
if(json::get<"sender"_>(hook.matching))
map(sender, at<"sender"_>(hook.matching));
if(json::get<"state_key"_>(hook.matching))
map(state_key, at<"state_key"_>(hook.matching));
if(json::get<"type"_>(hook.matching))
map(type, at<"type"_>(hook.matching));
// Hook had no mappings which means it will match everything.
// We don't increment the matcher count for this case.
if(!hook.matchers)
always.emplace_back(&hook);
++count;
hook.registered = true;
return true;
}
bool
ircd::m::hook<>::site::del(hook &hook)
{
assert(hook.registered);
assert(hook.site_name() == name());
const auto unmap{[&hook]
(auto &map, const string_view &key)
{
auto pit{map.equal_range(key)};
for(; pit.first != pit.second; ++pit.first)
if(pit.first->second == &hook)
{
--hook.matchers;
return map.erase(pit.first);
}
assert(0);
return end(map);
}};
// Unconditional attempt to remove from always.
std::remove(begin(always), end(always), &hook);
if(json::get<"origin"_>(hook.matching))
unmap(origin, at<"origin"_>(hook.matching));
if(json::get<"room_id"_>(hook.matching))
unmap(room_id, at<"room_id"_>(hook.matching));
if(json::get<"sender"_>(hook.matching))
unmap(sender, at<"sender"_>(hook.matching));
if(json::get<"state_key"_>(hook.matching))
unmap(state_key, at<"state_key"_>(hook.matching));
if(json::get<"type"_>(hook.matching))
unmap(type, at<"type"_>(hook.matching));
const auto erased
{
hooks.erase(&hook)
};
assert(erased);
assert(hook.matchers == 0);
--count;
hook.registered = false;
return true;
}
ircd::string_view
ircd::m::hook<>::site::name()
const try
{
return unquote(feature.at("name"));
}
catch(const std::out_of_range &e)
{
throw assertive
{
"Hook site %p requires a name", this
};
}
///////////////////////////////////////////////////////////////////////////////
//
// m/import.h
//
decltype(ircd::m::modules)
ircd::m::modules
{};
///////////////////////////////////////////////////////////////////////////////
//
// m/error.h
//
thread_local char
ircd::m::error::fmtbuf[768]
{};
ircd::m::error::error()
:http::error{http::INTERNAL_SERVER_ERROR}
{}
ircd::m::error::error(std::string c)
:http::error{http::INTERNAL_SERVER_ERROR, std::move(c)}
{}
ircd::m::error::error(const http::code &c)
:http::error{c, std::string{}}
{}
ircd::m::error::error(const http::code &c,
const json::members &members)
:http::error{c, json::strung{members}}
{}
ircd::m::error::error(const http::code &c,
const json::iov &iov)
:http::error{c, json::strung{iov}}
{}
ircd::m::error::error(const http::code &c,
const json::object &object)
:http::error{c, std::string{object}}
{}