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construct/modules/m_rooms.cc

135 lines
2.8 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.
ircd::mapi::header
IRCD_MODULE
{
"Matrix rooms interface; modular components"
};
decltype(ircd::m::rooms::opts_default)
ircd::m::rooms::opts_default;
bool
IRCD_MODULE_EXPORT
ircd::m::rooms::has(const opts &opts)
{
return !for_each(opts, []
(const m::room::id &)
{
// false to break; for_each() returns false
return false;
});
}
size_t
IRCD_MODULE_EXPORT
ircd::m::rooms::count(const opts &opts)
{
size_t ret{0};
for_each(opts, [&ret]
(const m::room::id &)
{
++ret;
return true;
});
return ret;
}
bool
IRCD_MODULE_EXPORT
ircd::m::rooms::for_each(const room::id::closure_bool &closure)
{
return for_each(opts_default, closure);
}
bool
IRCD_MODULE_EXPORT
ircd::m::rooms::for_each(const opts &opts,
const room::id::closure_bool &closure)
{
const auto match_alias_prefix{[&opts]
(const auto &alias)
{
return !startswith(alias, opts.search_term);
}};
bool ret{true};
const auto proffer{[&opts, &closure, &ret, &match_alias_prefix]
(const m::room::id &room_id)
{
if(opts.room_id && !opts.lower_bound)
{
ret = false;
return;
}
if(opts.room_id)
if(room_id < opts.room_id)
return;
if(opts.remote_joined_only)
if(local_only(room(room_id)))
return;
if(opts.local_only)
if(!local_only(room(room_id)))
return;
if(opts.server && !opts.summary)
if(opts.server != room_id.host())
return;
if(opts.summary)
if(!summary::has(room_id))
return;
if(opts.server && opts.summary)
if(!room::aliases(room_id).count(opts.server))
return;
if(opts.join_rule)
if(!join_rule(room(room_id), opts.join_rule))
return;
if(startswith(opts.search_term, m::id::ROOM_ALIAS))
if(room::aliases(room_id).for_each(match_alias_prefix))
return; // no match
ret = closure(room_id);
}};
// branch for optimized public rooms searches.
if(opts.summary)
{
const room::id::buf public_room_id
{
"!public", my_host()
};
const room::state state{public_room_id};
return state.for_each("ircd.rooms", opts.server, [&proffer, &ret]
(const string_view &type, const string_view &state_key, const event::idx &event_idx)
{
room::id::buf buf;
proffer(room::id::unswap(state_key, buf));
return ret;
});
}
return events::type::for_each_in("m.room.create", [&proffer, &ret]
(const string_view &type, const event::idx &event_idx)
{
assert(type == "m.room.create");
m::get(std::nothrow, event_idx, "room_id", proffer);
return ret;
});
}