public async void LookupPrivateNetworkHostTestMethod()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string localHostname = Dns.GetHostName();
if (localHostname.EndsWith(STUNDns.MDNS_TLD))
{
// TODO: Look into why DNS calls on macos cannot resolve domains ending in ".local"
// RFC6762 domains.
logger.LogWarning("Skipping unit test LookupPrivateNetworkHostTestMethod due to RFC6762 domain.");
}
else
{
logger.LogDebug($"Attempting DNS lookup for {localHostname}.");
STUNUri.TryParse(localHostname, out var stunUri);
var result = await STUNDns.Resolve(stunUri);
Assert.NotNull(result);
logger.LogDebug($"STUN DNS lookup for {stunUri} {result}.");
}
}
public async void LookupLocalhostIPv6TestMethod()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
STUNUri.TryParse("localhost", out var stunUri);
var result = await STUNDns.Resolve(stunUri, true).ConfigureAwait(false);
Assert.NotNull(result);
logger.LogDebug($"STUN DNS lookup for {stunUri} resolved to {result}.");
// Using System.Net.Dns.GetHostEntry doesn't return IPv6 results on Linux or WSL
// even when there is an IPv6 address assigned. Works correctly on Mac and Windows.
// Disabled the check below as it's not that important and requires different OS conditionals.
// AC 09 Jun 2020.
//if (Socket.OSSupportsIPv6 && System.Environment.OSVersion.Platform == System.PlatformID.Win32NT)
//{
// Assert.Equal(IPAddress.IPv6Loopback, result.Address);
//}
//else
//{
// Assert.Equal(IPAddress.Loopback, result.Address);
//}
}
public async void LookupNonExistentCanoncialHostTestMethod()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
STUNUri.TryParse("somehost.fsdfergerw.com", out var stunUri);
var result = await STUNDns.Resolve(stunUri, true).ConfigureAwait(false);
logger.LogDebug($"STUN DNS lookup for {stunUri} resolved to {result}.");
Assert.Null(result);
}
public async void LookupWithSRVTestMethod()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
STUNUri.TryParse("sipsorcery.com", out var stunUri);
var result = await STUNDns.Resolve(stunUri).ConfigureAwait(false);
Assert.NotNull(result);
logger.LogDebug($"STUN DNS lookup for {stunUri} resolved to {result}.");
}
public async void LookupNonExistentHostTestMethod()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
STUNUri.TryParse("idontexist", out var stunUri);
var result = await STUNDns.Resolve(stunUri, true);
logger.LogDebug($"STUN DNS lookup for {stunUri} {result}.");
Assert.Null(result);
}
public async void LookupHostWithExplicitPortTestMethod()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
STUNUri.TryParse("stun.sipsorcery.com:3478", out var stunUri);
var result = await STUNDns.Resolve(stunUri);
Assert.NotNull(result);
logger.LogDebug($"STUN DNS lookup for {stunUri} {result}.");
}
public async void LookupLocalhostTestMethod()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
STUNUri.TryParse("localhost", out var stunUri);
var result = await STUNDns.Resolve(stunUri).ConfigureAwait(false);
Assert.NotNull(result);
Assert.Equal(IPAddress.Loopback, result.Address);
logger.LogDebug($"STUN DNS lookup for {stunUri} resolved to {result}.");
}
public async void LookupHostPreferIPv6FallbackTestMethod()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
STUNUri.TryParse("www.sipsorcery.com", out var stunUri);
var result = await STUNDns.Resolve(stunUri, true).ConfigureAwait(false);
logger.LogDebug($"STUN DNS lookup for {stunUri} resolved to {result}.");
Assert.NotNull(result);
Assert.Equal(AddressFamily.InterNetwork, result.AddressFamily);
}
public async void LookupHostPreferIPv6TestMethod()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
STUNUri.TryParse("www.google.com", out var stunUri);
var result = await STUNDns.Resolve(stunUri, true).ConfigureAwait(false);
logger.LogDebug($"STUN DNS lookup for {stunUri} resolved to {result}.");
Assert.NotNull(result);
// There's no guarantee that a particular DNS server will have AAAA records for
// a particular hostname so can't check which result type was returned.
}
public async void LookupWithSRVTestPreferIPv6Method()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
STUNUri.TryParse("sipsorcery.com", out var stunUri);
var result = await STUNDns.Resolve(stunUri, true);
Assert.NotNull(result);
// No IPv6 DNS record available so should fallback to IPv4.
Assert.Equal(AddressFamily.InterNetwork, result.AddressFamily);
logger.LogDebug($"STUN DNS lookup for {stunUri} {result}.");
}
public async void LookupPrivateNetworkHostIPv6TestMethod()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string localHostname = Dns.GetHostName();
if (localHostname.EndsWith(STUNDns.MDNS_TLD))
{
// TODO: Look into why DNS calls on macos cannot resolve domains ending in ".local"
// RFC6762 domains.
logger.LogWarning("Skipping unit test LookupPrivateNetworkHostIPv6TestMethod due to RFC6762 domain.");
}
else
{
STUNUri.TryParse(localHostname, out var stunUri);
logger.LogDebug($"Attempting DNS lookup for {stunUri}.");
var result = await STUNDns.Resolve(stunUri, true);
Assert.NotNull(result);
logger.LogDebug($"STUN DNS lookup for {stunUri} {result}.");
}
// Using System.Net.Dns.GetHostEntry doesn't return IPv6 results on Linux or WSL
// even when there is an IPv6 address assigned. Works correctly on Mac and Windows.
// Disabled the check below as it's not that important and requires different OS conditionals.
// AC 09 Jun 2020.
//if (Socket.OSSupportsIPv6 && System.Environment.OSVersion.Platform == System.PlatformID.Win32NT)
//{
// Assert.Equal(AddressFamily.InterNetworkV6, result.AddressFamily);
//}
//else
//{
// Assert.Equal(AddressFamily.InterNetwork, result.AddressFamily);
//}
}
public async void LookupPrivateNetworkHostTestMethod()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
string localHostname = Dns.GetHostName();
if (localHostname.EndsWith(STUNDns.MDNS_TLD))
{
logger.LogWarning("Skipping unit test due to RFC6762 domain.");
}
else
{
logger.LogDebug($"Attempting DNS lookup for {localHostname}.");
STUNUri.TryParse(localHostname, out var stunUri);
var result = await STUNDns.Resolve(stunUri).ConfigureAwait(false);
Assert.NotNull(result);
logger.LogDebug($"STUN DNS lookup for {stunUri} resolved to {result}.");
}
}