EonaCat.DnsTester/EonaCat.DnsTester.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>net7.0-windows</TargetFramework>
+    <TargetFramework>net6.0-windows</TargetFramework>
     <UseWindowsForms>true</UseWindowsForms>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
 
@@ -28,8 +28,5 @@
       <Generator>SettingsSingleFileGenerator</Generator>
       <LastGenOutput>Settings.Designer.cs</LastGenOutput>
     </None>
-    <None Update="Servers.xml">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </None>
   </ItemGroup>
 </Project>

EonaCat.DnsTester/Helpers/DnsHelper.cs

@@ -21,7 +21,6 @@ namespace EonaCat.DnsTester.Helpers
             {
                 client.DontFragment = true;
                 client.EnableBroadcast = false;
-                client.Client.SendTimeout = DnsSendTimeout;
                 client.Client.ReceiveTimeout = DnsReceiveTimeout;
                 byte[] responseBytes = null;
                 if (FakeResponse)
@@ -43,7 +42,6 @@ namespace EonaCat.DnsTester.Helpers
         // For testing purposes
         public static bool FakeResponse { get; set; }
 
-        public static int DnsSendTimeout { get; set; } = 5;
         public static int DnsReceiveTimeout { get; set; } = 5;
 
 

EonaCat.DnsTester/Helpers/UrlHelper.cs

@@ -39,55 +39,52 @@ namespace EonaCat.DnsTester.Helpers
 
                 string url = searchEngine.Value + letters;
 
-                using (var client = new WebClient())
+                try
                 {
-                    string responseString = null;
+                    using (var client = new WebClient())
-                    try
                     {
-                        responseString = client.DownloadString(url);
+                        string responseString = client.DownloadString(url);
-                    }
-                    catch (Exception ex)
-                    {
-                        searchEngineUrls.Remove(searchEngine.Key);
-                        SetStatus($"{searchEngine.Key}: {ex.Message}");
-                    }
 
-                    if (responseString == null)
+                        // find all .xxx.com addresses
-                    {
+                        MatchCollection hostNames = Regex.Matches(responseString, @"[.](\w+[.]com)");
-                        continue;
-                    }
 
-                    // find all .xxx.com addresses
+                        // Loop through the match collection to retrieve all matches and delete the leading "."
-                    MatchCollection hostNames = Regex.Matches(responseString, @"[.](\w+[.]com)");
+                        HashSet<string> uniqueNames = new HashSet<string>();
-
+                        foreach (Match match in hostNames)
-                    // Loop through the match collection to retrieve all matches and delete the leading "."
-                    HashSet<string> uniqueNames = new HashSet<string>();
-                    foreach (Match match in hostNames)
-                    {
-                        string name = match.Groups[1].Value;
-                        if (name != $"{searchEngine.Key.ToLower()}.com")
                         {
-                            uniqueNames.Add(name);
+                            string name = match.Groups[1].Value;
+                            if (name != $"{searchEngine.Key.ToLower()}.com")
+                            {
+                                uniqueNames.Add(name);
+                            }
+                        }
+
+                        // Add the names to the list
+                        foreach (string name in uniqueNames)
+                        {
+                            if (urls.Count >= totalUrls)
+                            {
+                                break;
+                            }
+
+                            if (!urls.Contains(name))
+                            {
+                                urls.Add(name);
+                            }
                         }
                     }
 
-                    // Add the names to the list
+                    await Task.Delay(100);
-                    foreach (string name in uniqueNames)
+                }
-                    {
+                catch (Exception ex)
-                        if (urls.Count >= totalUrls)
+                {
-                        {
+                    searchEngineUrls.Remove(searchEngine.Key);
-                            break;
+                    SetStatus($"{searchEngine.Key}: {ex.Message}");
-                        }
+                }
-
+                finally
-                        if (!urls.Contains(name))
+                {
-                        {
+                    letters = GetRandomLetters();
-                            urls.Add(name);
-                        }
-                    }
                 }
-
-                letters = GetRandomLetters();
-                await Task.Delay(100);
             }
 
             var urlText = "url" + (urls.Count > 1 ? "'s" : string.Empty);

EonaCat.DnsTester/MainForm.cs

@@ -55,6 +55,12 @@ namespace EonaCat.DnsTester
             urls = await UrlHelper.RetrieveUrls(numThreads, numUrlsPerThread);
             AddUrlToView(urls);
 
+
+            if (IsRunning)
+            {
+                return;
+            }
+
             IsRunning = true;
             await Process(_recordType, urls.ToArray(), _dnsServer1, _dnsServer2);
             IsRunning = false;
@@ -193,10 +199,14 @@ namespace EonaCat.DnsTester
 
             for (int i = 0; i < urlsTotal; i++)
             {
-                var currentUrl = urls[i];
+                await Task.Run(async () =>
-                await ExecuteDns1(recordType, dnsAddress1, currentUrl, dnsId1, i);
+                {
-                if (!chkDns2.Checked) return;
+                    var currentUrl = urls[i];
-                await ExecuteDns2(recordType, dnsAddress2, currentUrl, dnsId2, i);
+
+                    await ExecuteDns1(recordType, dnsAddress1, currentUrl, dnsId1, i);
+                    if (!chkDns2.Checked) return;
+                    await ExecuteDns2(recordType, dnsAddress2, currentUrl, dnsId2, i);
+                });
                 await Task.Delay(100);
             }
         }

README.md

@@ -5,5 +5,3 @@ EonaCat.DnsTester
 Dns Testing tool for Blocky
 
 https://blocky.EonaCat.com
-
-[![EonaCat DnsTester](https://github.com/EonaCat/EonaCat.DnsTester/blob/main/Screenshots/1.png?raw=true "EonaCat DnsTester")](https://github.com/EonaCat/EonaCat.DnsTester/blob/main/Screenshots/1.png?raw=true "EonaCat DnsTester")