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construct/modules/federation/publicrooms.cc

146 lines
2.8 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
{
"Federation 14.1 :Public Rooms"
};
m::resource
publicrooms_resource
{
"/_matrix/federation/v1/publicRooms",
{
"(14.1) Gets all the public rooms for the homeserver. This should not return "
"rooms that are listed on another homeserver's directory, just those listed on "
"the receiving homeserver's directory. "
}
};
conf::item<size_t>
flush_hiwat
{
{ "name", "ircd.federation.publicrooms.flush.hiwat" },
{ "default", 16384L },
};
static m::resource::response
handle_get(client &,
const m::resource::request &);
m::resource::method
get_method
{
publicrooms_resource, "GET", handle_get,
{
get_method.VERIFY_ORIGIN
}
};
m::resource::response
handle_get(client &client,
const m::resource::request &request)
{
char sincebuf[m::room::id::buf::SIZE];
const string_view &since
{
url::decode(sincebuf, request.query["since"])
};
if(since && !valid(m::id::ROOM, since))
throw m::BAD_REQUEST
{
"Invalid since token for this server."
};
if(since && m::room::id(since).host() != my_host())
throw m::BAD_REQUEST
{
"Invalid since token for this server."
};
const uint8_t limit
{
request.has("limit")?
uint8_t(request.at<ushort>("limit")):
uint8_t(request.query.get<ushort>("limit", 255U))
};
const bool include_all_networks
{
request.get<bool>("include_all_networks", false)
};
m::resource::response::chunked response
{
client, http::OK
};
json::stack out
{
response.buf, response.flusher(), size_t(flush_hiwat)
};
m::rooms::opts opts;
opts.summary = true;
opts.join_rule = "public";
opts.server = my_host();
opts.lower_bound = true;
opts.room_id = since;
size_t count{0};
m::room::id::buf prev_batch_buf;
m::room::id::buf next_batch_buf;
json::stack::object top{out};
{
json::stack::array chunk
{
top, "chunk"
};
m::rooms::for_each(opts, [&]
(const m::room::id &room_id)
{
json::stack::object obj
{
chunk
};
m::rooms::summary::get(obj, room_id);
next_batch_buf = room_id;
return ++count < limit;
});
}
json::stack::member
{
top, "total_room_count_estimate", json::value
{
ssize_t(m::rooms::count(opts))
}
};
if(prev_batch_buf)
json::stack::member
{
top, "prev_batch", prev_batch_buf
};
if(count >= limit)
json::stack::member
{
top, "next_batch", next_batch_buf
};
return std::move(response);
}