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construct/modules/m_presence.cc

161 lines
3 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.
using namespace ircd;
mapi::header
IRCD_MODULE
{
"Matrix Presence"
};
const string_view
valid_states[]
{
"online", "offline", "unavailable",
};
extern "C" bool
presence_valid_state(const string_view &state)
{
return std::any_of(begin(valid_states), end(valid_states), [&state]
(const string_view &valid)
{
return state == valid;
});
}
static void handle_edu_m_presence_(const m::event &, const m::edu::m_presence &edu);
static void handle_edu_m_presence(const m::event &);
const m::hook
_m_presence_eval
{
handle_edu_m_presence,
{
{ "_site", "vm.eval" },
{ "type", "m.presence" },
}
};
void
handle_edu_m_presence(const m::event &event)
try
{
if(m::my_host(at<"origin"_>(event)))
return;
const json::object &content
{
at<"content"_>(event)
};
const json::array &push
{
content.get("push")
};
for(const json::object &presence : push)
handle_edu_m_presence_(event, presence);
}
catch(const ctx::interrupted &)
{
throw;
}
catch(const std::exception &e)
{
log::derror
{
"Presence from %s :%s",
json::get<"origin"_>(event),
e.what(),
};
}
void
handle_edu_m_presence_(const m::event &event,
const m::edu::m_presence &object)
try
{
const m::user::id &user_id
{
at<"user_id"_>(object)
};
if(user_id.host() != at<"origin"_>(event))
{
log::dwarning
{
"Ignoring %s from %s for user %s",
at<"type"_>(event),
at<"origin"_>(event),
string_view{user_id}
};
return;
}
bool useful{true};
m::presence::get(std::nothrow, user_id, [&event, &object, &useful]
(const m::event &existing_event, const json::object &existing_object)
{
assert(json::get<"user_id"_>(object) == unquote(existing_object.get("user_id")));
const auto &prev_active_ago
{
existing_object.get<time_t>("last_active_ago")
};
const time_t &now_active_ago
{
json::get<"last_active_ago"_>(object)
};
const time_t &prev_active_absolute
{
json::get<"origin_server_ts"_>(existing_event) - prev_active_ago
};
const time_t &now_active_absolute
{
json::get<"origin_server_ts"_>(event) - now_active_ago
};
useful = now_active_absolute > prev_active_absolute;
});
if(!useful)
return;
const auto evid
{
m::presence::set(object)
};
log::info
{
"%s %s is %s and %s %zd seconds ago",
at<"origin"_>(event),
string_view{user_id},
json::get<"currently_active"_>(object)? "active"_sv : "inactive"_sv,
json::get<"presence"_>(object),
json::get<"last_active_ago"_>(object) / 1000L
};
}
catch(const m::error &e)
{
log::error
{
"Presence from %s :%s :%s",
json::get<"origin"_>(event),
e.what(),
e.content
};
}