// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

syntax = "proto3";

package google.internal.communications.instantmessaging.v1;

import "internal/proto/duration.proto";

option optimize_for = LITE_RUNTIME;

message ICEConfiguration {
  // Duration the config is valid for.
  Duration lifetime_duration = 1;

  // ICE servers to be used by the client to establish a connection.
  // E.g.:
  // [ { "urls": "stun:stun1.example.net" }, { "urls": "turn:turn.example.org",
  // "username": "user", "credential": "myPassword" } ]
  repeated ICEServerList ice_servers = 2;
}

message ICEServerList {
  // STUN or TURN URI(s) as defined in [rfc7064] and [rfc7065] or other URI
  // types.
  repeated string urls = 1;

  // If this IceServer object represents a TURN server, then this attribute
  // specifies the credential to use with that TURN server.
  string username = 2;

  // If this IceServer object represents a TURN server, then this attribute
  // specifies the credential to use with that TURN server.
  string credential = 3;
}