internal static async Task <TurnClient> CreateTurnClient(
IEnumerable <IceServer> iceServers)
{
foreach (IceServer server in iceServers)
{
foreach (Uri url in server.Urls)
{
if (url.Scheme != "turn")
{
throw new ArgumentException($"{url} is not a valid TURN url.");
}
int port = url.IsDefaultPort
? TurnClient.TurnDefaultPort
: url.Port;
var turnClient = new TurnClient(
url.Host,
server.Username,
server.Credential,
port);
if (await turnClient.IsConnectable())
{
Log.Debug("TURN client created: {Host}:{Port}", url.Host, url.Port);
return(turnClient);
}
}
}
throw new IceServerException("Could not find a suitable ICE server.");
}
internal static async Task <TurnClient> CreateTurnClient(
IEnumerable <IceServer> iceServers)
{
foreach (IceServer server in iceServers)
{
foreach (Uri url in server.Urls)
{
if (url.Scheme != "turn")
{
throw new ArgumentException($"{url} isn't valid TURN url.");
}
int port = url.IsDefaultPort
? TurnClient.TurnDefaultPort
: url.Port;
var turnClient = new TurnClient(
url.Host,
server.Username,
server.Credential,
port);
var isConnectable = await turnClient.IsConnectable();
if (!isConnectable)
{
continue;
}
Log.Debug($"TURN client is created: {url.Host}:{url.Port}");
return(turnClient);
}
}
throw new IceServerException("Can't find suitable server.");
}
internal static async Task <TurnClient> CreateTurnClient(
IEnumerable <IceServer> iceServers)
{
foreach (IceServer server in iceServers)
{
foreach (Uri url in server.Urls)
{
if (url.Scheme != "turn")
{
throw new ArgumentException($"{url} isn't valid TURN url.");
}
try
{
int port = url.IsDefaultPort
? TurnClient.TurnDefaultPort
: url.Port;
var turnClient = new TurnClient(
url.Host,
server.Username,
server.Credential,
port);
// Check connectability
await turnClient.GetMappedAddressAsync();
return(turnClient);
}
catch (ArgumentException)
{
continue;
}
catch (SocketException)
{
continue;
}
}
}
throw new IceServerException("Can't find suitable server.");
}