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construct/matrix/presence.cc

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// 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.
namespace ircd::m
{
extern const string_view presence_valid_states[];
}
decltype(ircd::m::presence_valid_states)
ircd::m::presence_valid_states
{
"online",
"offline",
"unavailable",
};
2019-09-27 04:28:25 +02:00
ircd::m::presence::presence(const user &user,
const mutable_buffer &buf)
:edu::m_presence{[&user, &buf]
{
json::object ret;
get(user, [&ret, &buf]
(const json::object &content)
{
ret =
{
data(buf), copy(buf, string_view{content})
};
});
return ret;
}()}
{
}
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 },
{ "currently_active", presence == "online" },
});
}
void
ircd::m::presence::get(const user &user,
const 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)
{
static const m::event::fetch::opts fopts
{
m::event::keys::include {"content"}
};
const auto reclosure{[&closure]
(const m::event &event)
{
closure(json::get<"content"_>(event));
}};
return get(std::nothrow, user, reclosure, &fopts);
}
ircd::m::event::idx
ircd::m::presence::get(const user &user)
{
const event::idx ret
{
get(std::nothrow, user)
};
if(!ret)
throw m::NOT_FOUND
{
"No presence found for %s", string_view{user.user_id}
};
return ret;
}
bool
ircd::m::presence::get(const std::nothrow_t,
const m::user &user,
const m::presence::closure_event &closure,
const m::event::fetch::opts *const &fopts_p)
{
const m::event::idx event_idx
{
m::presence::get(std::nothrow, user)
};
if(!event_idx)
return false;
const auto &fopts
{
fopts_p? *fopts_p : event::fetch::default_opts
};
const m::event::fetch event
{
std::nothrow, event_idx, fopts
};
if(event.valid)
closure(event);
return event.valid;
}
ircd::m::event::idx
ircd::m::presence::get(const std::nothrow_t,
const m::user &user)
{
const m::user::room user_room
{
user
};
const m::room::state state
{
user_room
};
return state.get(std::nothrow, "ircd.presence", "");
}
bool
ircd::m::presence::prefetch(const m::user &user)
{
const m::user::room user_room
{
user
};
const m::room::state state
{
user_room
};
return state.prefetch("ircd.presence", "");
}
ircd::m::event::id::buf
ircd::m::presence::set(const m::presence &content)
{
const m::user user
{
json::at<"user_id"_>(content)
};
//TODO: ABA
if(!exists(user))
create(user.user_id);
m::vm::copts copts;
const m::user::room user_room
{
user, &copts
};
const json::strung _content
{
content
};
return send(user_room, user.user_id, "ircd.presence", "", json::object(_content));
}
bool
ircd::m::presence::valid_state(const string_view &state)
{
return std::any_of(begin(presence_valid_states), end(presence_valid_states), [&state]
(const string_view &valid)
{
return state == valid;
});
}