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construct/modules/client/rooms/members.cc

211 lines
4 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.
#include "rooms.h"
using namespace ircd;
resource::response
get__members(client &client,
const resource::request &request,
const m::room::id &room_id)
{
char membershipbuf[32];
const auto &membership
{
url::decode(membershipbuf, request.query["membership"])
};
char not_membershipbuf[32];
const auto &not_membership
{
url::decode(not_membershipbuf, request.query["not_membership"])
};
char atbuf[48];
const string_view at
{
url::decode(atbuf, request.query["at"])
};
const auto event_idx
{
// at is a /sync since token we gave the client. This is simply
// an event_idx sequence integer, except during phased-polylog sync
// when this is a negative integer. If this is phased sync, we can
// parse this token for the snapshot integer.
at && !startswith(at, '-')?
lex_cast<m::event::idx>(at):
startswith(at, '-')?
lex_cast<m::event::idx>(split(at, '_').second):
m::event::idx{0}
};
const m::event::id::buf event_id
{
event_idx && event_idx <= m::vm::sequence::retired?
m::event_id(event_idx, std::nothrow):
m::event::id::buf{}
};
const m::room room
{
room_id, event_id
};
if(!event_id && !exists(room))
throw m::NOT_FOUND
{
"Room %s does not exist.",
string_view{room_id}
};
if(!visible(room, request.user_id))
throw m::ACCESS_DENIED
{
"You do not have permission to view %s members.",
string_view{room_id}
};
resource::response::chunked response
{
client, http::OK
};
json::stack out
{
response.buf, response.flusher()
};
json::stack::object top
{
out
};
json::stack::array chunk
{
top, "chunk"
};
const m::room::members members
{
room
};
members.for_each(membership, [&not_membership]
(const m::user::id &member, const m::event::idx &event_idx)
{
if(m::room::members::membership(event_idx, not_membership))
return true;
m::prefetch(event_idx);
return true;
});
members.for_each(membership, [&request, &chunk, &not_membership]
(const m::user::id &member, const m::event::idx &event_idx)
{
if(m::room::members::membership(event_idx, not_membership))
return true;
const m::event::fetch event
{
event_idx, std::nothrow
};
if(!event.valid)
return true;
chunk.append(event);
return true;
});
return std::move(response);
}
resource::response
get__joined_members(client &client,
const resource::request &request,
const m::room::id &room_id)
{
const m::room room
{
room_id
};
if(!exists(room))
throw m::NOT_FOUND
{
"Room %s does not exist.",
string_view{room_id}
};
if(!visible(room, request.user_id))
throw m::ACCESS_DENIED
{
"You do not have permission to view %s joined members.",
string_view{room_id}
};
resource::response::chunked response
{
client, http::OK
};
json::stack out
{
response.buf, response.flusher()
};
json::stack::object top
{
out
};
json::stack::object joined
{
top, "joined"
};
const m::room::members members
{
room
};
members.for_each("join", []
(const m::user::id &user_id, const m::event::idx &event_idx)
{
m::prefetch(event_idx);
return true;
});
members.for_each("join", [&joined, &room]
(const m::user::id &user_id, const m::event::idx &event_idx)
{
json::stack::object room_member
{
joined, user_id
};
m::get(std::nothrow, event_idx, "content", [&room_member]
(const json::object &content)
{
for(const auto &[key, val] : content)
json::stack::member
{
room_member, key, val
};
});
return true;
});
return std::move(response);
}