Baseline: Ausgangszustand vor Modularisierung

Erster Commit des bestehenden monolithischen WinForms-Copytraders, inklusive der Alt-Backups (*.bak), damit diese dauerhaft in der Historie rekonstruierbar bleiben. Threema-Lib unter libs/ wurde vendored (nested .git entfernt). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-01 13:16:16 +02:00
commit 475d396f80
147 changed files with 25455 additions and 0 deletions
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+using System;
+using System.Collections.Generic;
+using System.Configuration;
+using System.Data;
+using System.Data.Common;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using IcgSoftware.Threema.CoreMsgApi.Exceptions;
+using Microsoft.Data.Sqlite;
+using Microsoft.Extensions.Configuration;
+
+namespace IcgSoftware.Threema.CoreMsgApi
+{
+	class PublicKeyStoreDb : PublicKeyStore
+	{
+		private readonly string connectionString;
+
+		public PublicKeyStoreDb(string connectionString)
+		{
+			if (string.IsNullOrEmpty(connectionString))
+			{
+				throw new ArgumentException("connectionString must be not null or empty.");
+			}
+
+			this.connectionString = connectionString;
+
+			this.CreateDatabase();
+		}
+
+		/// <summary>
+		/// Fetch public key in store for particular threema id
+		/// </summary>
+		/// <param name="threemaId">Threema id to fetch</param>
+		/// <returns>Public key</returns>
+		protected override byte[] FetchPublicKey(string threemaId)
+		{
+			using (DbConnection connection = GetConnection(this.connectionString))
+			{
+				connection.Open();
+
+				string sql = "SELECT threema_id, key FROM public_key WHERE threema_id = @threemaId";
+
+				var command = connection.CreateCommand();
+				command.CommandType = CommandType.Text;
+				command.CommandText = sql;
+
+				var paramThreemaId = command.CreateParameter();
+				paramThreemaId.ParameterName = "threemaId";
+				paramThreemaId.Value = threemaId;
+				command.Parameters.Add(paramThreemaId);
+
+				byte[] publicKey = null;
+
+				using (var reader = command.ExecuteReader(CommandBehavior.SingleRow))
+				{
+					if (reader.HasRows)
+					{
+						if (reader.Read())
+						{
+							publicKey = DataUtils.HexStringToByteArray(reader[1].ToString());
+						}
+					}
+					reader.Close();
+				}
+
+				return publicKey;
+			}
+		}
+
+		/// <summary>
+		/// Save threema id and public key into store
+		/// </summary>
+		/// <param name="threemaId">Threema id</param>
+		/// <param name="publicKey">public key</param>
+		protected override void Save(string threemaId, byte[] publicKey)
+		{
+			using (DbConnection connection = GetConnection(this.connectionString))
+			{
+				connection.Open();
+
+				string sql = "INSERT INTO public_key (threema_id, key) VALUES (@threemaId, @key)";
+
+				var command = connection.CreateCommand();
+				command.CommandType = CommandType.Text;
+				command.CommandText = sql;
+
+				var paramThreemaId = command.CreateParameter();
+				paramThreemaId.ParameterName = "threemaId";
+				paramThreemaId.Value = threemaId;
+
+				var paramKey = command.CreateParameter();
+				paramKey.ParameterName = "key";
+				paramKey.Value = DataUtils.ByteArrayToHexString(publicKey);
+
+				command.Parameters.Add(paramThreemaId);
+				command.Parameters.Add(paramKey);
+				command.ExecuteNonQuery();
+
+				connection.Close();
+			}
+		}
+
+		/// <summary>
+		/// Create database and table for public key store
+		/// </summary>
+		private void CreateDatabase()
+		{
+			using (DbConnection connection = GetConnection(this.connectionString))
+			{
+				connection.Open();
+
+				string sql = "CREATE TABLE IF NOT EXISTS public_key (id INTEGER PRIMARY KEY AUTOINCREMENT, threema_id VARCHAR(8) NOT NULL UNIQUE, key VARCHAR(64) NOT NULL)";
+
+				var command = connection.CreateCommand();
+				command.CommandText = sql;
+				command.ExecuteNonQuery();
+
+				connection.Close();
+			}
+		}
+
+		/// <summary>
+		/// Get connetion is configured in App.config
+		/// </summary>
+		/// <param name="connectionString">Connect String</param>
+		/// <returns>Db Connection</returns>
+		private DbConnection GetConnection(string connectionString)
+		{
+            //throw new CoreMigrationException("SQLite is not supported");
+            return new SqliteConnection(connectionString);
+
+            //string providerName = "System.Data.SQLite";
+            //var dbProvider = Microsoft.Data.Sqlite.SqliteFactory.Instance;
+/*
+            string providerName = null;            
+
+            DbConnectionStringBuilder connectionStringBuilder = new DbConnectionStringBuilder { ConnectionString = connectionString };
+
+			if (connectionStringBuilder.ContainsKey("provider"))
+			{
+				providerName = connectionStringBuilder["provider"].ToString();
+			}
+			else
+			{              
+                ConnectionStringSettings connectionStringSetting = ConfigurationManager
+                        .ConnectionStrings
+                        .Cast<ConnectionStringSettings>()
+                        .FirstOrDefault(x => x.ConnectionString == connectionString);
+                if (connectionStringSetting != null)
+                {
+                    providerName = connectionStringSetting.ProviderName;
+                }
+            }
+
+			if (providerName != null)
+			{
+				bool providerExists = DbProviderFactories
+						.GetFactoryClasses()
+						.Rows.Cast<DataRow>()
+						.Any(r => r[2].Equals(providerName));
+				if (providerExists)
+				{
+					DbProviderFactory factory = DbProviderFactories.GetFactory(providerName);
+					DbConnection dbConnection = factory.CreateConnection();
+
+					dbConnection.ConnectionString = connectionString;
+					return dbConnection;
+				}
+			}
+
+			return null;
+*/
+		}
+	}
+}