266 lines
10 KiB
C#
266 lines
10 KiB
C#
///
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/// Copyright (c) 2015-2022 Sensus Slovensko a.s.
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///
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using System;
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using System.IO;
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using System.Security.Cryptography;
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using System.Text;
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using System.Xml.Serialization;
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namespace ProductionTracing
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{
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/// <summary>
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/// Class to be serialized to an XML file...
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/// Public members are local settings.
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/// These settings are modified by dialogs invoked by menu items
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/// Edit->Preferences ... PreferencesDlg ... S1.1(language, etc. local settings), and
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/// Edit->Advanced settings ... AdvancedSettingsDlg ... S1.2(spec. where bench settings are stored)
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/// </summary>
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[XmlRootAttribute("ProductionTracing")]
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public class LocalSettings
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{
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static XmlSerializer serializer = XmlSerializer.FromTypes(new[] { typeof(LocalSettings) })[0];
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/// Configuration file ecryption/decryption key and initialization vector
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static byte[] key = new byte[] { 83, 254, 105, 64, 184, 201, 195, 127, 52, 99, 77, 45, 252, 132, 163, 156 };
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static byte[] IV = new byte[] { 189, 23, 137, 56, 204, 241, 242, 118, 28, 89, 9, 198, 224, 111, 186, 125 };
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/// <summary>
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/// User interface language (used as CultureInfo(..) constructor argument).
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/// </summary>
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public string Language;
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public bool IsUserLoginRequired;
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/// Database settings of servers.
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public string ConnectionString;
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public string UsersDBConnString;
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/// Statistics options
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public bool TwoDim;
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public string RowItemID; /// Caption of the selected row item
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public string ColumnItemID; /// Caption of the selected column item (applies when TwoDim == true)
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public bool FilterEnabled;
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public string FilteredItemId; /// Caption of the item to be filtered
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public string FilteredValue;
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/// MainWnd
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public int MainWndLeft;
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public int MainWndTop;
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public int MainWndWidth;
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public int MainWndHeight;
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public bool MainWndMaximized;
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/// History of texts entered in ComboBoxes
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public string[] Combo1History;
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public string[] Combo2History;
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public string[] Combo4History;
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public string[] Combo5History;
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public string[] Combo6History;
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public string[] Combo7History;
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public string[] Combo8History;
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public string[] Combo9History;
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/// Last configuration file name
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public string LastConfigFileName;
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/// Report file name history
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public string LastReportFileName;
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public string[] ReportFileNameHistory;
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[XmlIgnore]
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public int ReportFileNameHistoryCount { get { return (ReportFileNameHistory != null) ? ReportFileNameHistory.Length : 0; } }
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/// Report configuration
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public string[] ReportItems;
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/// Parameterless constructor required by serialization
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public LocalSettings() { }
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public LocalSettings(bool createNew)
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{
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if (createNew)
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{
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Language = "EN";
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IsUserLoginRequired = false;
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#if DEBUG
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ConnectionString = "SERVER=localhost; DATABASE=nanjingshared; UID=root; PASSWORD=kraken; CHARSET=utf8;";
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UsersDBConnString = "SERVER=localhost; DATABASE=nanjingshared; UID=root; PASSWORD=kraken; CHARSET=utf8;";
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#else
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ConnectionString = "SERVER=10.116.192.200; DATABASE=nanjingshared; UID=nanjingshared; PASSWORD=C1ern4V0d4; CHARSET=utf8;";
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UsersDBConnString = "SERVER=10.116.192.200; DATABASE=nanjingshared; UID=nanjingshared; PASSWORD=C1ern4V0d4; CHARSET=utf8;";
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#endif
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MainWndLeft = 20;
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MainWndTop = 20;
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MainWndWidth = 1406;
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MainWndHeight = 750;
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MainWndMaximized = false;
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LastConfigFileName = string.Empty;
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}
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}
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/// <summary>
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/// Load public fields of this class from the XML file.
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/// </summary>
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/// <returns>LocalSettings object or null when Load() fails</returns>
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public static LocalSettings Load(string fileName)
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{
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try
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{
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bool isEncrypted = true;
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using (StreamReader reader = new StreamReader(fileName))
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{
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isEncrypted = !reader.ReadLine().StartsWith("<?xml version=");
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reader.Close();
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}
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if (isEncrypted)
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{
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/// Write settings to a string
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StringBuilder plain = new StringBuilder();
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using (RijndaelManaged aes = new RijndaelManaged { Padding = PaddingMode.Zeros })
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{
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using (FileStream fsCrypt = new FileStream(fileName, FileMode.Open))
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{
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using (ICryptoTransform decryptor = aes.CreateDecryptor(key, IV))
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{
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using (CryptoStream cs = new CryptoStream(fsCrypt, decryptor, CryptoStreamMode.Read))
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{
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using (MemoryStream mStream = new MemoryStream())
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{
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using (var writer = new BinaryWriter(mStream))
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{
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int data;
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while ((data = cs.ReadByte()) != -1)
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{
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if (data != 0) writer.Write((byte)data);
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}
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writer.Flush();
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mStream.Position = 0;
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using (var reader = new StreamReader(mStream))
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{
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return serializer.Deserialize(reader) as LocalSettings;
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}
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}
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}
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}
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}
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}
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}
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}
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else
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{
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using (StreamReader reader = new StreamReader(fileName))
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{
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return serializer.Deserialize(reader) as LocalSettings;
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}
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}
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}
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catch (Exception e)
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{
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string msg = e.Message;
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return null;
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}
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}
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/// <summary>
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/// Save public fields of this class to the XML file.
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/// </summary>
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public void Save()
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{
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try
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{
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/// Encrypt and write to file 'Program.LocalSettingsFileName'
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using (RijndaelManaged aes = new RijndaelManaged { Padding = PaddingMode.Zeros })
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{
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using (FileStream fsCrypt = new FileStream(Program.LocalSettingsFileName, FileMode.Create))
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{
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using (ICryptoTransform encryptor = aes.CreateEncryptor(key, IV))
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{
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using (CryptoStream cs = new CryptoStream(fsCrypt, encryptor, CryptoStreamMode.Write))
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{
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using (MemoryStream mStream = new MemoryStream())
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{
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using (var writer = new StreamWriter(mStream))
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{
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/// Serialize and write settings to a memory stream
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serializer.Serialize(writer, this);
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writer.Flush();
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mStream.Position = 0;
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using (var reader = new StreamReader(mStream))
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{
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/// Encrypt and write to file 'Program.LocalSettingsFileName'
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int data;
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while ((data = mStream.ReadByte()) != -1) cs.WriteByte((byte)data);
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}
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}
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}
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}
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}
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}
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}
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}
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catch (Exception e)
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{
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string msg = e.Message;
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}
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}
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public static void PrepareCombo(System.Windows.Forms.ComboBox comboBox, string[] history)
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{
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if (history == null) history = new string[0];
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for (int i = 0; i < history.Length; i++) comboBox.Items.Add(history[i]);
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if (comboBox.Items.Count > 0) comboBox.Text = comboBox.Items[0].ToString();
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}
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/// <summary>
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/// Updates history stored in a string array by a new latest string.
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/// </summary>
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/// <param name="lastStrValue">Lste entered string</param>
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/// <returns>true = updated and saved</returns>
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public bool UpdateHistory(string lastStrValue, ref string[] history, int maxHistoryLen = 10)
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{
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if (string.IsNullOrEmpty(lastStrValue)) return false;
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int currentHistoryCount = (history != null) ? history.Length : 0;
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int match = -1;
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for (int i = 0; i < currentHistoryCount; i++)
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{
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if (history[i] == lastStrValue)
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{
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match = i;
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break;
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}
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}
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if (match >= 0 || currentHistoryCount >= maxHistoryLen)
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{
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/// History does not have to be (because of a match) or should not be extended (because of the lenght)
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if (match < 0) match = currentHistoryCount - 1;
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for (int j = match; j > 0; j--)
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{
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history[j] = history[j - 1];
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}
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history[0] = lastStrValue;
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}
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else
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{
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/// History wiil be extended, new item inserted at the beginning
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string[] newHistory = new string[currentHistoryCount + 1];
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newHistory[0] = lastStrValue;
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for (int j = 1; j <= currentHistoryCount; j++)
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{
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newHistory[j] = history[j - 1];
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}
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history = newHistory;
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}
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return true;
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}
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}
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}
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