diff options
Diffstat (limited to 'RSSDP/SsdpDeviceLocator.cs')
| -rw-r--r-- | RSSDP/SsdpDeviceLocator.cs | 56 |
1 files changed, 23 insertions, 33 deletions
diff --git a/RSSDP/SsdpDeviceLocator.cs b/RSSDP/SsdpDeviceLocator.cs index 59f4c5070..d6fad4b9d 100644 --- a/RSSDP/SsdpDeviceLocator.cs +++ b/RSSDP/SsdpDeviceLocator.cs @@ -17,7 +17,7 @@ namespace Rssdp.Infrastructure private ISsdpCommunicationsServer _CommunicationsServer; private Timer _BroadcastTimer; - private object _timerLock = new object(); + private object _timerLock = new(); private string _OSName; @@ -221,19 +221,16 @@ namespace Rssdp.Infrastructure /// <seealso cref="DeviceAvailable"/> protected virtual void OnDeviceAvailable(DiscoveredSsdpDevice device, bool isNewDevice, IPAddress IPAddress) { - if (this.IsDisposed) + if (IsDisposed) { return; } - var handlers = this.DeviceAvailable; - if (handlers is not null) + var handlers = DeviceAvailable; + handlers?.Invoke(this, new DeviceAvailableEventArgs(device, isNewDevice) { - handlers(this, new DeviceAvailableEventArgs(device, isNewDevice) - { - RemoteIPAddress = IPAddress - }); - } + RemoteIPAddress = IPAddress + }); } /// <summary> @@ -244,16 +241,13 @@ namespace Rssdp.Infrastructure /// <seealso cref="DeviceUnavailable"/> protected virtual void OnDeviceUnavailable(DiscoveredSsdpDevice device, bool expired) { - if (this.IsDisposed) + if (IsDisposed) { return; } - var handlers = this.DeviceUnavailable; - if (handlers is not null) - { - handlers(this, new DeviceUnavailableEventArgs(device, expired)); - } + var handlers = DeviceUnavailable; + handlers?.Invoke(this, new DeviceUnavailableEventArgs(device, expired)); } /// <summary> @@ -291,8 +285,8 @@ namespace Rssdp.Infrastructure _CommunicationsServer = null; if (commsServer is not null) { - commsServer.ResponseReceived -= this.CommsServer_ResponseReceived; - commsServer.RequestReceived -= this.CommsServer_RequestReceived; + commsServer.ResponseReceived -= CommsServer_ResponseReceived; + commsServer.RequestReceived -= CommsServer_RequestReceived; } } } @@ -341,7 +335,7 @@ namespace Rssdp.Infrastructure var values = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase); - values["HOST"] = "239.255.255.250:1900"; + values["HOST"] = string.Format(CultureInfo.InvariantCulture, "{0}:{1}", SsdpConstants.MulticastLocalAdminAddress, SsdpConstants.MulticastPort); values["USER-AGENT"] = string.Format(CultureInfo.InvariantCulture, "{0}/{1} UPnP/1.0 RSSDP/{2}", _OSName, _OSVersion, SsdpConstants.ServerVersion); values["MAN"] = "\"ssdp:discover\""; @@ -382,17 +376,17 @@ namespace Rssdp.Infrastructure private void ProcessNotificationMessage(HttpRequestMessage message, IPAddress IPAddress) { - if (String.Compare(message.Method.Method, "Notify", StringComparison.OrdinalIgnoreCase) != 0) + if (string.Compare(message.Method.Method, "Notify", StringComparison.OrdinalIgnoreCase) != 0) { return; } var notificationType = GetFirstHeaderStringValue("NTS", message); - if (String.Compare(notificationType, SsdpConstants.SsdpKeepAliveNotification, StringComparison.OrdinalIgnoreCase) == 0) + if (string.Compare(notificationType, SsdpConstants.SsdpKeepAliveNotification, StringComparison.OrdinalIgnoreCase) == 0) { ProcessAliveNotification(message, IPAddress); } - else if (String.Compare(notificationType, SsdpConstants.SsdpByeByeNotification, StringComparison.OrdinalIgnoreCase) == 0) + else if (string.Compare(notificationType, SsdpConstants.SsdpByeByeNotification, StringComparison.OrdinalIgnoreCase) == 0) { ProcessByeByeNotification(message); } @@ -420,7 +414,7 @@ namespace Rssdp.Infrastructure private void ProcessByeByeNotification(HttpRequestMessage message) { var notficationType = GetFirstHeaderStringValue("NT", message); - if (!String.IsNullOrEmpty(notficationType)) + if (!string.IsNullOrEmpty(notficationType)) { var usn = GetFirstHeaderStringValue("USN", message); @@ -447,10 +441,9 @@ namespace Rssdp.Infrastructure private string GetFirstHeaderStringValue(string headerName, HttpResponseMessage message) { string retVal = null; - IEnumerable<string> values; if (message.Headers.Contains(headerName)) { - message.Headers.TryGetValues(headerName, out values); + message.Headers.TryGetValues(headerName, out var values); if (values is not null) { retVal = values.FirstOrDefault(); @@ -463,10 +456,9 @@ namespace Rssdp.Infrastructure private string GetFirstHeaderStringValue(string headerName, HttpRequestMessage message) { string retVal = null; - IEnumerable<string> values; if (message.Headers.Contains(headerName)) { - message.Headers.TryGetValues(headerName, out values); + message.Headers.TryGetValues(headerName, out var values); if (values is not null) { retVal = values.FirstOrDefault(); @@ -479,10 +471,9 @@ namespace Rssdp.Infrastructure private Uri GetFirstHeaderUriValue(string headerName, HttpRequestMessage request) { string value = null; - IEnumerable<string> values; if (request.Headers.Contains(headerName)) { - request.Headers.TryGetValues(headerName, out values); + request.Headers.TryGetValues(headerName, out var values); if (values is not null) { value = values.FirstOrDefault(); @@ -496,10 +487,9 @@ namespace Rssdp.Infrastructure private Uri GetFirstHeaderUriValue(string headerName, HttpResponseMessage response) { string value = null; - IEnumerable<string> values; if (response.Headers.Contains(headerName)) { - response.Headers.TryGetValues(headerName, out values); + response.Headers.TryGetValues(headerName, out var values); if (values is not null) { value = values.FirstOrDefault(); @@ -529,7 +519,7 @@ namespace Rssdp.Infrastructure foreach (var device in expiredDevices) { - if (this.IsDisposed) + if (IsDisposed) { return; } @@ -543,7 +533,7 @@ namespace Rssdp.Infrastructure // problems. foreach (var expiredUsn in (from expiredDevice in expiredDevices select expiredDevice.Usn).Distinct()) { - if (this.IsDisposed) + if (IsDisposed) { return; } @@ -560,7 +550,7 @@ namespace Rssdp.Infrastructure existingDevices = FindExistingDeviceNotifications(_Devices, deviceUsn); foreach (var existingDevice in existingDevices) { - if (this.IsDisposed) + if (IsDisposed) { return true; } |