Exemplo n.º 1
0
        /// <summary>
        /// TODO: this method needs some work
        /// </summary>
        /// <param name="inputDataItems"></param>
        /// <returns></returns>
        protected override PropertyBagDataItem[] GetOutputData(DataItemBase[] inputDataItems)
        {
            var result = new List <PropertyBagDataItem>();

            var bagItem = new Dictionary <string, object>();

            string ipAddressesText = string.Empty;

            if (_customDnsServers.Count == 0)
            {
                try
                {
                    var ipAddresses = Dns.GetHostAddresses(_testUri.DnsSafeHost);
                    foreach (var ipAddress in ipAddresses)
                    {
                        ipAddressesText += $"{ipAddress}; ";
                    }

                    bagItem.Add("State", "OK");
                    bagItem.Add("DNSServers", "<System Defined>");
                    bagItem.Add("Error", "");
                    bagItem.Add("IP", ipAddressesText);
                }
                // catch only name resolution process related exceptions to alert on resolution problem
                catch (SocketException se)
                {
                    bagItem.Add("State", "ERROR");
                    bagItem.Add("DNSServers", "<System Defined>");
                    bagItem.Add("Error", se.Message);
                    bagItem.Add("IP", "");
                }
                catch (ArgumentException se)
                {
                    bagItem.Add("State", "ERROR");
                    bagItem.Add("DNSServers", "<System Defined>");
                    bagItem.Add("Error", se.Message);
                    bagItem.Add("IP", "");
                }
            }
            else
            {
                int    successCount = 0;
                string errorList = string.Empty;
                string failedDnsServers = string.Empty, successDnsServers = string.Empty;

                foreach (var dns in _customDnsServers)
                {
                    try
                    {
                        var draftIP = TcpHelper.GetHostEntry(_testUri.DnsSafeHost, dns, timeOut: _dnsRequestTimeout);
                        if (draftIP?.AddressList?.Length > 0)
                        {
                            successCount++;
                            foreach (var ipAddress in draftIP.AddressList)
                            {
                                ipAddressesText += $"{ipAddress}; ";
                            }

                            successDnsServers += $"{dns}; ";
                        }
                        else
                        {
                            errorList        += $"DNS Server [{dns}] returned no addresses for '{_testUri.DnsSafeHost}'. ";
                            failedDnsServers += $"{dns}; ";
                        }
                    }
                    catch (SocketException e)
                    {
                        errorList        += $"Error: [{e.Message}]; ";
                        failedDnsServers += $"{dns}; ";
                    }
                }

                string dnsServers = $"Query Success: {successDnsServers} Query empty of failed: {failedDnsServers}";

                if (successCount == 0)
                {
                    bagItem.Add("State", "ERROR");
                    bagItem.Add("DNSServers", dnsServers);
                    bagItem.Add("Error", errorList);
                    bagItem.Add("IP", "");
                }
                else if (successCount < _minValidResponses)
                {
                    bagItem.Add("State", "WARNING");
                    bagItem.Add("DNSServers", dnsServers);
                    bagItem.Add("Error", errorList);
                    bagItem.Add("IP", ipAddressesText);
                }
                else
                {
                    bagItem.Add("State", "OK");
                    bagItem.Add("DNSServers", dnsServers);
                    bagItem.Add("Error", errorList);
                    bagItem.Add("IP", ipAddressesText);
                }
            }

            result.Add(new PropertyBagDataItem(null, new Dictionary <string, Dictionary <string, object> >
            {
                { string.Empty, bagItem }
            }));

            return(result.ToArray());
        }