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local set = require "util.set";
local secret = module:get_option_string("turn_external_secret");
local host = module:get_option_string("turn_external_host", module.host);
local user = module:get_option_string("turn_external_user");
local port = module:get_option_number("turn_external_port", 3478);
local ttl = module:get_option_number("turn_external_ttl", 86400);
local tcp = module:get_option_boolean("turn_external_tcp", false);
local tls_port = module:get_option_boolean("turn_external_tls_port");
if not secret then error("mod_" .. module.name .. " requires that 'turn_external_secret' be set") end
local services = set.new({ "stun-udp"; "turn-udp" });
if tcp then
services:add("stun-tcp");
services:add("turn-tcp");
end
if tls_port then
services:add("turns-tcp");
end
module:depends "external_services";
for _, type in ipairs({ "stun"; "turn"; "turns" }) do
for _, transport in ipairs({"udp"; "tcp"}) do
if services:contains(type .. "-" .. transport) then
module:add_item("external_service", {
type = type;
transport = transport;
host = host;
port = type == "turns" and tls_port or port;
username = type == "turn" and user or nil;
secret = type == "turn" and secret or nil;
ttl = type == "turn" and ttl or nil;
})
end
end
end
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