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construct/matrix/room_leave.cc

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// 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.
ircd::m::event::id::buf
ircd::m::leave(const room &room,
const id::user &user_id)
{
if(!exists(room))
return {};
json::iov event;
json::iov content;
const json::iov::push push[]
{
{ event, { "type", "m.room.member" }},
{ event, { "sender", user_id }},
{ event, { "state_key", user_id }},
{ content, { "membership", "leave" }},
};
const m::user user{user_id};
const m::user::profile profile{user};
char displayname_buf[256];
const string_view displayname
{
profile.get(displayname_buf, "displayname")
};
char avatar_url_buf[256];
const string_view avatar_url
{
profile.get(avatar_url_buf, "avatar_url")
};
const json::iov::add _displayname
{
content, !empty(displayname),
{
"displayname", [&displayname]() -> json::value
{
return displayname;
}
}
};
const json::iov::add _avatar_url
{
content, !empty(avatar_url),
{
"avatar_url", [&avatar_url]() -> json::value
{
return avatar_url;
}
}
};
return commit(room, event, content);
}