/// <summary>
/// Full constructor.
/// </summary>
/// <param name="discoveredDevice">A <see cref="DiscoveredSsdpDevice"/> instance representing the available device.</param>
/// <param name="isNewlyDiscovered">A boolean value indicating whether or not this device came from the cache. See <see cref="IsNewlyDiscovered"/> for more detail.</param>
/// <exception cref="System.ArgumentNullException">Thrown if the <paramref name="discoveredDevice"/> parameter is null.</exception>
public DeviceAvailableEventArgs(DiscoveredSsdpDevice discoveredDevice, bool isNewlyDiscovered)
{
if (discoveredDevice == null) throw new ArgumentNullException("discoveredDevice");
_DiscoveredDevice = discoveredDevice;
_IsNewlyDiscovered = isNewlyDiscovered;
}
/// <summary>
/// Full constructor.
/// </summary>
/// <param name="discoveredDevice">A <see cref="DiscoveredSsdpDevice"/> instance representing the device that has become unavailable.</param>
/// <param name="expired">A boolean value indicating whether this device is unavailable because it expired, or because it explicitly sent a byebye notification.. See <see cref="Expired"/> for more detail.</param>
/// <exception cref="System.ArgumentNullException">Thrown if the <paramref name="discoveredDevice"/> parameter is null.</exception>
public DeviceUnavailableEventArgs(DiscoveredSsdpDevice discoveredDevice, bool expired)
{
if (discoveredDevice == null) throw new ArgumentNullException("discoveredDevice");
_DiscoveredDevice = discoveredDevice;
_Expired = expired;
}
public void DiscoveredDevice_GetDeviceInfo_DoesNotMakeHttpRequestIfDataCached()
{
var publishedDevice = new SsdpRootDevice()
{
Location = new Uri("http://192.168.1.100:1702/description"),
CacheLifetime = TimeSpan.FromMinutes(1),
DeviceType = "TestDeviceType",
Uuid = System.Guid.NewGuid().ToString()
};
var discoveredDevice = new DiscoveredSsdpDevice();
discoveredDevice.Usn = "test usn";
discoveredDevice.AsAt = DateTimeOffset.Now;
discoveredDevice.CacheLifetime = publishedDevice.CacheLifetime;
discoveredDevice.DescriptionLocation = publishedDevice.Location;
var client = new MockHttpClient(publishedDevice.ToDescriptionDocument());
var device = discoveredDevice.GetDeviceInfo(client).GetAwaiter().GetResult();
client = new MockHttpClient(publishedDevice.ToDescriptionDocument());
device = discoveredDevice.GetDeviceInfo(client).GetAwaiter().GetResult();
Assert.IsNull(client.LastRequest);
Assert.AreEqual(device.Uuid, publishedDevice.Uuid);
Assert.AreEqual(device.DeviceType, publishedDevice.DeviceType);
}
/// <summary>
/// Full constructor.
/// </summary>
/// <param name="discoveredDevice">A <see cref="DiscoveredSsdpDevice"/> instance representing the device that has become unavailable.</param>
/// <param name="expired">A boolean value indicating whether this device is unavailable because it expired, or because it explicitly sent a byebye notification.. See <see cref="Expired"/> for more detail.</param>
/// <exception cref="ArgumentNullException">Thrown if the <paramref name="discoveredDevice"/> parameter is null.</exception>
public DeviceUnavailableEventArgs(DiscoveredSsdpDevice discoveredDevice, bool expired)
{
if (discoveredDevice == null)
{
throw new ArgumentNullException(nameof(discoveredDevice));
}
_DiscoveredDevice = discoveredDevice;
_Expired = expired;
}
/// <summary>
/// Full constructor.
/// </summary>
/// <param name="discoveredDevice">A <see cref="DiscoveredSsdpDevice"/> instance representing the available device.</param>
/// <param name="isNewlyDiscovered">A boolean value indicating whether or not this device came from the cache. See <see cref="IsNewlyDiscovered"/> for more detail.</param>
/// <exception cref="System.ArgumentNullException">Thrown if the <paramref name="discoveredDevice"/> parameter is null.</exception>
public DeviceAvailableEventArgs(DiscoveredSsdpDevice discoveredDevice, bool isNewlyDiscovered)
{
if (discoveredDevice == null)
{
throw new ArgumentNullException("discoveredDevice");
}
_DiscoveredDevice = discoveredDevice;
_IsNewlyDiscovered = isNewlyDiscovered;
}
public void DiscoveredDevice_GetDeviceInfo_CreatesDefaultClient()
{
var publishedDevice = new SsdpRootDevice()
{
Location = new Uri("http://192.168.1.100:1702/description"),
CacheLifetime = TimeSpan.FromMinutes(1),
DeviceType = "TestDeviceType",
Uuid = System.Guid.NewGuid().ToString()
};
var discoveredDevice = new DiscoveredSsdpDevice();
discoveredDevice.Usn = "test usn";
discoveredDevice.AsAt = DateTimeOffset.Now;
discoveredDevice.CacheLifetime = TimeSpan.FromSeconds(1);
discoveredDevice.DescriptionLocation = publishedDevice.Location;
var device = discoveredDevice.GetDeviceInfo().GetAwaiter().GetResult();
}
private async Task UpnpDeviceFound(DiscoveredSsdpDevice device)
{
try
{
var response = await CreateUpnpDeviceAsync(device);
if (response == null)
{
return;
}
var key = $"{device.DescriptionLocation.Host}/{response.Usn}";
DateTime lastOccurrence;
if (_occurrences.TryGetValue(key, out lastOccurrence))
{
if ((DateTime.UtcNow - lastOccurrence) < TimeSpan.FromSeconds(5))
{
return;
}
}
_occurrences.AddOrUpdate(key, DateTime.UtcNow, (k, v) => DateTime.UtcNow);
OnDeviceFound(response);
}
catch (HttpRequestException)
{
}
catch (WebException)
{
}
catch (Exception e)
{
_log.Error(e.Message, e);
}
}
public void DiscoveredDevice_ToStringReturnsUsn()
{
var discoveredDevice = new DiscoveredSsdpDevice();
discoveredDevice.Usn = "test usn";
discoveredDevice.AsAt = DateTimeOffset.Now;
discoveredDevice.CacheLifetime = TimeSpan.FromSeconds(1);
System.Threading.Thread.Sleep(1000);
Assert.AreEqual(discoveredDevice.Usn, discoveredDevice.ToString());
}
public void DiscoveredDevice_IsExpired_ReportsTrueAfterCacheLifetimeExpires()
{
var discoveredDevice = new DiscoveredSsdpDevice();
discoveredDevice.AsAt = DateTimeOffset.Now;
discoveredDevice.CacheLifetime = TimeSpan.FromMilliseconds(100);
System.Threading.Thread.Sleep(500);
Assert.IsTrue(discoveredDevice.IsExpired());
}
public void DiscoveredDevice_IsExpired_ImmediatelyReportsTrueIfCacheLifetimeIsZero()
{
var discoveredDevice = new DiscoveredSsdpDevice();
discoveredDevice.AsAt = DateTimeOffset.Now;
discoveredDevice.CacheLifetime = TimeSpan.Zero;
Assert.IsTrue(discoveredDevice.IsExpired());
}
public void DiscoveredDevice_IsExpired_DoesNotImmediatelyReportTrue()
{
var discoveredDevice = new DiscoveredSsdpDevice();
discoveredDevice.AsAt = DateTimeOffset.Now;
discoveredDevice.CacheLifetime = TimeSpan.FromSeconds(1);
Assert.IsFalse(discoveredDevice.IsExpired());
}
private async Task<UpnpDeviceResponse> CreateUpnpDeviceAsync(DiscoveredSsdpDevice device)
{
var info = await device.GetDeviceInfo();
var headers = device.ResponseHeaders?.ToDictionary(
h => h.Key, h => string.Join(" ", h.Value), StringComparer.OrdinalIgnoreCase);
headers = headers ?? new Dictionary<string, string>(0);
string server;
string location;
string usn = info.Udn;
if (!headers.TryGetValue("location", out location))
{
location = device.DescriptionLocation.AbsoluteUri;
}
if (!headers.TryGetValue("server", out server))
{
server = string.Empty;
}
var response = new UpnpDeviceResponse(location, server, usn)
{
FriendlyName = info.FriendlyName,
Manufacturer = info.Manufacturer,
ModelName = info.ModelName
};
foreach (var keyValuePair in headers)
{
response.AddHeader(keyValuePair.Key, keyValuePair.Value);
}
return response;
}
