Initial Commit

MarketData/MarketDataLib/Integration/Network.cs

@@ -0,0 +1,92 @@
+using System.Net.NetworkInformation;
+
+namespace MarketData.Integration
+{
+  public class NetworkStatus
+  {
+    private NetworkStatus()
+    {
+    }
+    /// <summary>
+    /// Indicates whether any network connection is available
+    /// Filter connections below a specified speed, as well as virtual network cards.
+    /// </summary>
+    /// <returns>
+    ///     <c>true</c> if a network connection is available; otherwise, <c>false</c>.
+    /// </returns>
+    public static bool IsNetworkAvailable()
+    {
+        return IsNetworkAvailable(0);
+    }
+
+// On Linux platforms we must be priveleged to send custom payloads so we are using the send option that does not require a payload
+// This differs from the windows implementation
+    public static bool IsInternetConnected()
+    {
+        try
+        {
+            Ping myPing = new Ping();
+            String host = "google.com";
+            int timeout = 5000;
+            PingReply reply = myPing.Send(host, timeout);
+
+            if (reply.Status == IPStatus.Success)
+            {
+                return true;
+            }
+            else if (reply.Status == IPStatus.TimedOut)
+            {
+                return true;
+            }
+            else
+            {
+                return false;
+            }
+        }
+        catch (Exception exception)
+        {
+          MDTrace.WriteLine(LogLevel.DEBUG,$"[Ping] {exception.ToString()}");
+          return false;
+        }
+    }
+    /// <summary>
+    /// Indicates whether any network connection is available.
+    /// Filter connections below a specified speed, as well as virtual network cards.
+    /// </summary>
+    /// <param name="minimumSpeed">The minimum speed required. Passing 0 will not filter connection using speed.</param>
+    /// <returns>
+    ///     <c>true</c> if a network connection is available; otherwise, <c>false</c>.
+    /// </returns>
+    public static bool IsNetworkAvailable(long minimumSpeed)
+    {
+        if (!NetworkInterface.GetIsNetworkAvailable())
+            return false;
+
+        foreach (NetworkInterface ni in NetworkInterface.GetAllNetworkInterfaces())
+        {
+            // discard because of standard reasons
+            if ((ni.OperationalStatus != OperationalStatus.Up) ||
+                (ni.NetworkInterfaceType == NetworkInterfaceType.Loopback) ||
+                (ni.NetworkInterfaceType == NetworkInterfaceType.Tunnel))
+                continue;
+
+            // this allow to filter modems, serial, etc.
+            // I use 10000000 as a minimum speed for most cases
+            if (ni.Speed < minimumSpeed)
+                continue;
+
+            // discard virtual cards (virtual box, virtual pc, etc.)
+            if ((ni.Description.IndexOf("virtual", StringComparison.OrdinalIgnoreCase) >= 0) ||
+                (ni.Name.IndexOf("virtual", StringComparison.OrdinalIgnoreCase) >= 0))
+                continue;
+
+            // discard "Microsoft Loopback Adapter", it will not show as NetworkInterfaceType.Loopback but as Ethernet Card.
+            if (ni.Description.Equals("Microsoft Loopback Adapter", StringComparison.OrdinalIgnoreCase))
+                continue;
+
+            return true;
+        }
+        return false;
+    }
+  }
+}