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construct/modules/m_direct.cc

127 lines
2.6 KiB
C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2019 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
{
"Client 14.23 :Direct Messaging"
};
static void
_join_room__m_direct(const m::event &event,
m::vm::eval &eval);
const m::hookfn<m::vm::eval &>
_join_room__m_direct_hookfn
{
{
{ "_site", "vm.effect" },
{ "type", "m.room.member" },
{ "membership", "join" },
{ "origin", my_host() },
},
_join_room__m_direct
};
void
_join_room__m_direct(const m::event &event,
m::vm::eval &eval)
{
const m::user::id &user_id
{
at<"sender"_>(event)
};
const m::room room
{
at<"room_id"_>(event)
};
const auto membership_event_idx
{
room.get(std::nothrow, "m.room.member", user_id)
};
if(!membership_event_idx)
return;
const auto prev_membership_event_idx
{
m::room::state::prev(membership_event_idx)
};
if(!prev_membership_event_idx)
return;
bool is_direct {false};
m::get(std::nothrow, prev_membership_event_idx, "content", [&is_direct]
(const json::object &content)
{
if(unquote(content.get("membership")) == "invite")
is_direct = content.get<bool>("is_direct", false);
});
if(!is_direct)
return;
m::user::id::buf other_person;
const m::room::members members{room};
members.for_each(m::room::members::closure_bool{[&user_id, &other_person]
(const auto &other_id)
{
if(other_id == user_id)
return true;
other_person = other_id;
return false;
}});
if(!other_person)
return;
const unique_buffer<mutable_buffer> buf
{
48_KiB
};
json::stack out{buf};
json::stack::object top{out};
const m::user::account_data account_data{user_id};
account_data.get("m.direct", [&room, &other_person, &top]
(const string_view &, const json::object &object)
{
for(const auto &[user_id, room_ids] : object)
{
if(user_id != other_person)
{
json::stack::member
{
top, user_id, json::array(room_ids)
};
continue;
}
json::stack::array user_rooms
{
top, user_id
};
user_rooms.append(room.room_id);
for(const auto &room_id : json::array(room_ids))
user_rooms.append(room_id);
}
});
top.~object();
account_data.set("m.direct", json::object(out.completed()));
}