|
public static TryParse ( string ipString, |
||
| ipString | string | |
| address | ||
| Résultat | bool | |
/// <summary>
/// Get IPv4 address from notation (xxx.xxx.xxx.xxx) or hostname
/// </summary>
public static NetAddress Resolve(string ipOrHost)
{
if (string.IsNullOrEmpty(ipOrHost))
{
throw new ArgumentException("Supplied string must not be empty", "ipOrHost");
}
ipOrHost = ipOrHost.Trim();
NetAddress ipAddress = null;
if (NetAddress.TryParse(ipOrHost, out ipAddress))
{
if (ipAddress.AddressFamily == AddressFamily.InterNetwork)
{
return(ipAddress);
}
throw new ArgumentException("This method will not currently resolve other than ipv4 addresses");
}
// ok must be a host name
try
{
//var addresses = Dns.GetHostAddresses(ipOrHost);
var addressesTask = Dns.GetHostAddressesAsync(ipOrHost);
addressesTask.RunSynchronously();
//var address = addressesTask.Result;
if (addressesTask.Result == null)
{
return(null);
}
foreach (var address in addressesTask.Result)
{
if (address.AddressFamily == AddressFamily.InterNetwork)
{
return(address);
}
}
return(null);
}
catch (SocketException ex)
{
if (ex.SocketErrorCode == SocketError.HostNotFound)
{
//LogWrite(string.Format(CultureInfo.InvariantCulture, "Failed to resolve host '{0}'.", ipOrHost));
return(null);
}
else
{
throw;
}
}
}
/// <summary>
/// Get IPv4 address from notation (xxx.xxx.xxx.xxx) or hostname (asynchronous version)
/// </summary>
public static void ResolveAsync(string ipOrHost, ResolveAddressCallback callback)
{
if (string.IsNullOrEmpty(ipOrHost))
{
throw new ArgumentException("Supplied string must not be empty", "ipOrHost");
}
ipOrHost = ipOrHost.Trim();
NetAddress ipAddress = null;
if (NetAddress.TryParse(ipOrHost, out ipAddress))
{
if (ipAddress.AddressFamily == AddressFamily.InterNetwork)
{
callback(ipAddress);
return;
}
throw new ArgumentException("This method will not currently resolve other than ipv4 addresses");
}
// ok must be a host name
IPHostEntry entry;
try
{
var addrTask = Dns.GetHostEntryAsync(ipOrHost);
addrTask.RunSynchronously();
callback(addrTask.Result.AddressList[0]);
}
catch (SocketException ex)
{
if (ex.SocketErrorCode == SocketError.HostNotFound)
{
//LogWrite(string.Format(CultureInfo.InvariantCulture, "Failed to resolve host '{0}'.", ipOrHost));
callback(null);
}
else
{
throw;
}
}
}
private void UpdateClientAddress()
{
IPAddress ipAddress;
if (IPAddress.TryParse(ClientIP, out ipAddress) && 0 <= Port && Port <= 65535)
{
if (oscClient != null)
{
oscClient.Close();
}
oscClient = new OSCClient(ipAddress, Port);
// Formatting might have changed
ClientIP = oscClient.ClientIPAddress.ToString();
Debug.Log($"OSC Client address set to {ClientIP}:{Port}.");
}
else
{
Debug.LogWarning($"Unable to set OSC client address to invalid IP/port: {ClientIP}:{Port}. OSC is still being sent to {oscClient.ClientIPAddress}:{oscClient.Port}.");
}
currentClientIP = ClientIP;
}
/// <summary>
/// Get IPv4 address from notation (xxx.xxx.xxx.xxx) or hostname (asynchronous version)
/// </summary>
public static void ResolveAsync(string ipOrHost, ResolveAddressCallback callback)
{
if (string.IsNullOrEmpty(ipOrHost))
{
throw new ArgumentException("Supplied string must not be empty", "ipOrHost");
}
ipOrHost = ipOrHost.Trim();
NetAddress ipAddress = null;
if (NetAddress.TryParse(ipOrHost, out ipAddress))
{
if (ipAddress.AddressFamily == AddressFamily.InterNetwork || ipAddress.AddressFamily == AddressFamily.InterNetworkV6)
{
callback(ipAddress);
return;
}
throw new ArgumentException("This method will not currently resolve other than ipv4 addresses");
}
// ok must be a host name
IPHostEntry entry;
try
{
Dns.BeginGetHostEntry(ipOrHost, delegate(IAsyncResult result)
{
try
{
entry = Dns.EndGetHostEntry(result);
}
catch (SocketException ex)
{
if (ex.SocketErrorCode == SocketError.HostNotFound)
{
//LogWrite(string.Format(CultureInfo.InvariantCulture, "Failed to resolve host '{0}'.", ipOrHost));
callback(null);
return;
}
else
{
throw;
}
}
if (entry == null)
{
callback(null);
return;
}
// check each entry for a valid IP address
foreach (var ipCurrent in entry.AddressList)
{
if (ipCurrent.AddressFamily == AddressFamily.InterNetwork || ipCurrent.AddressFamily == AddressFamily.InterNetworkV6)
{
callback(ipCurrent);
return;
}
}
callback(null);
}, null);
}
catch (SocketException ex)
{
if (ex.SocketErrorCode == SocketError.HostNotFound)
{
//LogWrite(string.Format(CultureInfo.InvariantCulture, "Failed to resolve host '{0}'.", ipOrHost));
callback(null);
}
else
{
throw;
}
}
}
internal void Resolve()
{
//
// if we already resolved this name then don't do it again
//
if (cached)
{
return;
}
//
// IP wildcards are not resolved
//
if (wildcard)
{
return;
}
//
// IP addresses with wildcards are allowed in permissions
//
if (IsValidWildcard)
{
wildcard = true;
cached = true;
return;
}
//
// Check if the permission was specified as numeric IP.
//
IPAddress ipaddr;
if (IPAddress.TryParse(hostname, out ipaddr))
{
address = new IPAddress[1];
address[0] = ipaddr;
cached = true;
return;
}
//
// Not numeric: use GetHostByName to determine addresses
//
try {
IPHostEntry ipHostEntry;
if (Dns.TryInternalResolve(hostname, out ipHostEntry))
{
address = ipHostEntry.AddressList;
}
// NB: It never caches DNS responses
//
}
catch (SecurityException) {
throw;
}
catch {
// ignore second exception
}
}
