FISLib_Old/Vinno.vCloud.Common.FIS/Test/NetworkStatusTestV2.cs

using System;
using System.Linq;
using System.Net;
using System.Net.NetworkInformation;
using System.Net.Sockets;
using Vinno.IUS.Common.Log;

namespace Vinno.vCloud.Common.FIS.Test
{
    public class NetworkStatusTestV2 : VCloudTestItem
    {
        private readonly string _networkStatusTestError1 = "NetworkStatusTestError1";
        private readonly string _networkStatusTestError2 = "NetworkStatusTestError2";
        private readonly string _networkStatusTestError3 = "NetworkStatusTestError3";

        public NetworkStatusTestV2(VCloudServiceTest vCloudServiceTest) : base("NetworkStatus", vCloudServiceTest)
        {
        }

        public override VCloudServiceTestResult Execute()
        {
            //Check if network connected
            if (!CheckNetworkConnected())
            {
                return new VCloudServiceTestResult(Id, VCloudTestItemStatus.TestFailed, _networkStatusTestError1, "(101)");//ErrorCode=101
            }

            //Get ip from dns
            var result = TimeoutExecute(CheckIfvCloudHostIpAvailable);
            if (result == VCloudSubItemTestStatus.Timeout)
            {
                return new VCloudServiceTestResult(Id, VCloudTestItemStatus.TestFailed, TimeoutError, "(102)");//ErrorCode=102
            }
            if (result == VCloudSubItemTestStatus.Failed)
            {
                return new VCloudServiceTestResult(Id, VCloudTestItemStatus.TestFailed, _networkStatusTestError3, "(103)");//ErrorCode=103
            }

            return new VCloudServiceTestResult(Id, VCloudTestItemStatus.TestDone);
        }

        private VCloudSubItemTestStatus CheckIfvCloudHostIpAvailable()
        {
            var ipAddress = GetIpAddress(VCloudServiceTest.VCloudHost);
            if (ipAddress == null)
            {
                return VCloudSubItemTestStatus.Failed;
            }
            return VCloudSubItemTestStatus.Successful;
        }

        private bool CheckNetworkConnected()
        {
            var networkAvailable = NetworkInterface.GetIsNetworkAvailable();
            if (!networkAvailable)
            {
                return false;
            }

            return true;
        }

        private IPAddress GetIpAddress(string host)
        {
            IPAddress address = null;
            IPAddress[] ipAddresses = null;
            try
            {
                ipAddresses = Dns.GetHostAddresses(host);
                //This is for normal case to get the ipv4 address.
                address = ipAddresses?.FirstOrDefault(x => x.AddressFamily == AddressFamily.InterNetwork);
            }
            catch (Exception ex)
            {
                Logger.WriteLineError($"TestNetworkStatus - Get hosts address from dns failed.{ex}");
            }
            return address;
        }
    }
}