-- http://legastero.github.io/customxeps/extensions/xep-0156.html

module:depends"http";

local json = require"util.json";

local st = require"util.stanza";

local host_modules = hosts[module.host].modules;

local function GET_xml(event)

	local request, response = event.request, event.response;

	local xrd = st.stanza("XRD", { xmlns='http://docs.oasis-open.org/ns/xri/xrd-1.0' });

	if host_modules["bosh"] then

		xrd:tag("Link", { rel="urn:xmpp:altconnect:bosh", href = module:http_url("bosh", "/http-bind") }):up();

	end

	if host_modules["websocket"] then

	end

	response.headers.content_type = "application/xrd+xml"

	response.headers.access_control_allow_origin = "*";

	return tostring(xrd);

end

local function GET_json(event)

	local request, response = event.request, event.response;

	local jrd = { links = { } };

	if host_modules["bosh"] then

		jrd.links[#jrd.links+1] = { rel="urn:xmpp:altconnect:bosh", href = module:http_url("bosh", "/http-bind") };

	end

	if host_modules["websocket"] then

	end

	response.headers.content_type = "application/json"

	response.headers.access_control_allow_origin = "*";

	return json.encode(jrd);

end;

local function GET_either(event)

	local accept_type = event.request.headers.accept or "";

	if ( accept_type:find("xml") or #accept_type ) < ( accept_type:find("json") or #accept_type+1 ) then

		return GET_xml(event);

	else

		return GET_json(event);

	end

end;

module:provides("http", {

	default_path = "/.well-known";

	route = {

		["GET /host-meta"] = GET_either;

		-- ["GET /host-meta.xml"] = GET_xml; -- Hmmm

		["GET /host-meta.json"] = GET_json;

	};

});