Backend/Handler/IpScanner.cs

@@ -155,7 +155,7 @@ public class IpScanner
                         
                         if (responseCode != IPStatus.Success)
                         {
-                            _discardedQueue.Enqueue(CreateDiscardedQueueItem(ip, (int)responseCode));
+                            _discardedQueue.Enqueue(CreateDiscardedQueueItem(ip.ToString(), (int)responseCode));
                             continue;
                         }
                         
@@ -163,7 +163,7 @@ public class IpScanner
                         
                         if (ports is { Item1: 0, Item2: 0 })
                         {
-                            _discardedQueue.Enqueue(CreateDiscardedQueueItem(ip, (int)responseCode));
+                            _discardedQueue.Enqueue(CreateDiscardedQueueItem(ip.ToString(), (int)responseCode));
                             continue;
                         }
                         
@@ -203,7 +203,7 @@ public class IpScanner
         scanSettings.Handle!.Set();
     }
     
-    private static Discarded CreateDiscardedQueueItem(Ip ip, int responseCode)
+    private static Discarded CreateDiscardedQueueItem(string ip, int responseCode)
     {
         Discarded discarded = new()
         {

Models/Handler/DbHandler.cs

@@ -19,7 +19,7 @@ public class DbHandler
     
     private const string InsertStatement = "PRAGMA synchronous = OFF; PRAGMA temp_store = MEMORY; PRAGMA journal_mode = MEMORY; PRAGMA foreign_keys = off; INSERT INTO Unfiltered (Ip1, Ip2, Ip3, Ip4, Port1, Port2, Filtered) VALUES (@ip1, @ip2, @ip3, @ip4, @port1, @port2, @filtered)";
     private const string InsertIntoFiltered = "PRAGMA synchronous = OFF; PRAGMA temp_store = MEMORY; PRAGMA journal_mode = MEMORY; PRAGMA foreign_keys = off; INSERT INTO Filtered (Ip1, Ip2, Ip3, Ip4, Port1, Port2, Title1, Title2, Description1, Description2, Url1, Url2, ServerType1, ServerType2, RobotsTXT1, RobotsTXT2, HttpVersion1, HttpVersion2, CertificateIssuerCountry, CertificateOrganizationName, IpV6, TlsVersion, CipherSuite, KeyExchangeAlgorithm, PublicKeyType1, PublicKeyType2, PublicKeyType3, AcceptEncoding1, AcceptEncoding2, ALPN, Connection1, Connection2) VALUES (@ip1, @ip2, @ip3, @ip4, @port1, @port2, @title1, @title2, @description1, @description2, @url1, @url2, @serverType1, @serverType2, @robotsTXT1, @robotsTXT2, @httpVersion1, @httpVersion2, @certificateIssuerCountry, @certificateOrganizationName, @ipV6, @tlsVersion, @cipherSuite, @keyExchangeAlgorithm, @publicKeyType1, @publicKeyType2, @publicKeyType3, @acceptEncoding1, @acceptEncoding2, @aLPN, @connection1, @connection2)";
-    private const string InsertIntoDiscarded = "PRAGMA synchronous = OFF; PRAGMA temp_store = MEMORY; PRAGMA journal_mode = MEMORY; PRAGMA foreign_keys = off; INSERT INTO Discarded (Ip1, Ip2, Ip3, Ip4, ResponseCode) VALUES (@ip1, @ip2, @ip3, @ip4, @responseCode)";
+    private const string InsertIntoDiscarded = "PRAGMA synchronous = OFF; PRAGMA temp_store = MEMORY; PRAGMA journal_mode = MEMORY; PRAGMA foreign_keys = off; INSERT INTO Discarded (Ip, ResponseCode) VALUES (@ip, @responseCode)";
     private const string InsertIntoResume = "PRAGMA synchronous = OFF; PRAGMA temp_store = MEMORY; PRAGMA journal_mode = MEMORY; PRAGMA foreign_keys = off; INSERT INTO Resume (ThreadNumber, StartRange, EndRange, FirstByte, SecondByte, ThirdByte, FourthByte) VALUES (@threadNumber, @startRange, @endRange, @firstByte, @secondByte, @thirdByte, @fourthByte);";
     
     private const string ReadUnfilteredStatement = "SELECT * FROM Unfiltered WHERE Id = @id;";
@@ -156,7 +156,9 @@ public class DbHandler
                 continue;
             }
             
-            _discardedQueue.TryDequeue(out Discarded queueItem);
+            _discardedQueue.TryDequeue(out Discarded? queueItem);
+            
+            if (queueItem is null) { continue; }
             
             InsertDiscarded(queueItem, connectionString);
         }
@@ -192,10 +194,7 @@ public class DbHandler
         
         using SqliteCommand command = new(InsertIntoDiscarded, connection);
         
-        command.Parameters.AddWithValue("@ip1", discarded.Ip.Ip1);
-        command.Parameters.AddWithValue("@ip2", discarded.Ip.Ip2);
-        command.Parameters.AddWithValue("@ip3", discarded.Ip.Ip3);
-        command.Parameters.AddWithValue("@ip4", discarded.Ip.Ip4);
+        command.Parameters.AddWithValue("@ip", discarded.Ip);
         command.Parameters.AddWithValue("@responseCode", discarded.ResponseCode);
         _ = command.ExecuteNonQuery();
         
@@ -580,7 +579,7 @@ public class DbHandler
     {
         string databaseName = $"Data Source={_basePath}/Models/Discarded{threadNumber}.db";
         
-        const string createStatement = "CREATE TABLE IF NOT EXISTS Discarded (Id INTEGER NOT NULL, Ip1 TEXT NOT NULL, Ip2 TEXT NOT NULL, Ip3 TEXT NOT NULL, Ip4 TEXT NOT NULL, ResponseCode INTEGER NOT NULL, PRIMARY KEY(Id AUTOINCREMENT))";
+        const string createStatement = "CREATE TABLE IF NOT EXISTS Discarded (Id INTEGER NOT NULL, Ip TEXT NOT NULL, ResponseCode INTEGER NOT NULL, PRIMARY KEY(Id AUTOINCREMENT))";
 
         _discardedConnectionStrings.Add(databaseName);
         

Models/Model/Backend/Discarded.cs

@@ -1,8 +1,7 @@
 namespace Models.Model.Backend;
 
-public struct Discarded
+public class Discarded
 {
-    public Ip Ip { get; set; }
-    
+    public string Ip { get; set; } = "";
     public int ResponseCode { get; set; }
 }