/*
 * SecureBlackbox 2024 .NET Edition - Sample Project
 *
 * This sample project demonstrates the usage of SecureBlackbox in a 
 * simple, straightforward way. It is not intended to be a complete 
 * application. Error handling and other checks are simplified for clarity.
 *
 * www.nsoftware.com/secureblackbox
 *
 * This code is subject to the terms and conditions specified in the 
 * corresponding product license agreement which outlines the authorized 
 * usage and restrictions.
 * 
 */

using System;
using System.Windows.Forms;
using System.Collections.Generic;
using nsoftware.SecureBlackbox;
using System.IO;

/// <summary>
/// Summary description for frmMain.
/// </summary>
public class frmMain : System.Windows.Forms.Form
{
    private System.Windows.Forms.OpenFileDialog dlgOpen;
    /// <summary>
    /// Required designer variable.
    /// </summary>
    private System.ComponentModel.Container components = null;
    
    private XMLDecryptor decryptor;
    private TextBox edOutputFile;
    private Button sbBrowseOutputFile;
    private Label lDataFile;
    private TextBox edInputFile;
    private Button btnDecrypt;
    private Button sbBrowseInputFile;
    private Label lbInputFile;
    private Label label1;
    private SaveFileDialog dlgSave;

    public frmMain()
    {
        //
        // Required for Windows Form Designer support
        //
        InitializeComponent();

        //
        // TODO: Add any constructor code after InitializeComponent call
        //
        decryptor = new XMLDecryptor();
        decryptor.OnDecryptionInfoNeeded += new XMLDecryptor.OnDecryptionInfoNeededHandler(DecryptionInfoNeeded);
        decryptor.OnSaveExternalData += new XMLDecryptor.OnSaveExternalDataHandler(SaveExternalData);        
    }

    /// <summary>
    /// Clean up any resources being used.
    /// </summary>
    protected override void Dispose(bool disposing)
    {
        if (disposing)
        {
            if (components != null)
            {
                components.Dispose();
                decryptor.Dispose();
            }
        }
        base.Dispose(disposing);
    }

    private void DecryptionInfoNeeded(object s, XMLDecryptorDecryptionInfoNeededEventArgs e)
    {
        DecryptPropsForm decryptProps = new DecryptPropsForm((XMLDecryptor)s);

        e.CancelDecryption = (decryptProps.ShowDialog() != DialogResult.OK);
    }

    private void SaveExternalData(object s, XMLDecryptorSaveExternalDataEventArgs e)
    {
        dlgSave.InitialDirectory = Application.StartupPath;
        dlgSave.FileName = edOutputFile.Text;
        if (dlgSave.ShowDialog() == DialogResult.OK)
            File.WriteAllBytes(dlgSave.FileName, e.ExternalData);
    }

    #region Windows Form Designer generated code
    /// <summary>
    /// Required method for Designer support - do not modify
    /// the contents of this method with the code editor.
    /// </summary>
    private void InitializeComponent()
    {
            this.dlgOpen = new System.Windows.Forms.OpenFileDialog();
            this.edOutputFile = new System.Windows.Forms.TextBox();
            this.sbBrowseOutputFile = new System.Windows.Forms.Button();
            this.lDataFile = new System.Windows.Forms.Label();
            this.edInputFile = new System.Windows.Forms.TextBox();
            this.btnDecrypt = new System.Windows.Forms.Button();
            this.sbBrowseInputFile = new System.Windows.Forms.Button();
            this.lbInputFile = new System.Windows.Forms.Label();
            this.label1 = new System.Windows.Forms.Label();
            this.dlgSave = new System.Windows.Forms.SaveFileDialog();
            this.SuspendLayout();
            // 
            // edOutputFile
            // 
            this.edOutputFile.Location = new System.Drawing.Point(70, 87);
            this.edOutputFile.Name = "edOutputFile";
            this.edOutputFile.Size = new System.Drawing.Size(305, 20);
            this.edOutputFile.TabIndex = 18;
            // 
            // sbBrowseOutputFile
            // 
            this.sbBrowseOutputFile.Location = new System.Drawing.Point(381, 84);
            this.sbBrowseOutputFile.Name = "sbBrowseOutputFile";
            this.sbBrowseOutputFile.Size = new System.Drawing.Size(75, 25);
            this.sbBrowseOutputFile.TabIndex = 19;
            this.sbBrowseOutputFile.Text = "Browse ...";
            this.sbBrowseOutputFile.Click += new System.EventHandler(this.sbBrowseOutputFile_Click);
            // 
            // lDataFile
            // 
            this.lDataFile.AutoSize = true;
            this.lDataFile.Location = new System.Drawing.Point(6, 90);
            this.lDataFile.Name = "lDataFile";
            this.lDataFile.Size = new System.Drawing.Size(58, 13);
            this.lDataFile.TabIndex = 17;
            this.lDataFile.Text = "Output file:";
            // 
            // edInputFile
            // 
            this.edInputFile.Location = new System.Drawing.Point(70, 46);
            this.edInputFile.Name = "edInputFile";
            this.edInputFile.Size = new System.Drawing.Size(305, 20);
            this.edInputFile.TabIndex = 14;
            // 
            // btnDecrypt
            // 
            this.btnDecrypt.Location = new System.Drawing.Point(381, 144);
            this.btnDecrypt.Name = "btnDecrypt";
            this.btnDecrypt.Size = new System.Drawing.Size(75, 25);
            this.btnDecrypt.TabIndex = 16;
            this.btnDecrypt.Text = "Decrypt";
            this.btnDecrypt.Click += new System.EventHandler(this.btnDecrypt_Click);
            // 
            // sbBrowseInputFile
            // 
            this.sbBrowseInputFile.Location = new System.Drawing.Point(381, 43);
            this.sbBrowseInputFile.Name = "sbBrowseInputFile";
            this.sbBrowseInputFile.Size = new System.Drawing.Size(75, 25);
            this.sbBrowseInputFile.TabIndex = 15;
            this.sbBrowseInputFile.Text = "Browse ...";
            this.sbBrowseInputFile.Click += new System.EventHandler(this.sbBrowseInputFile_Click);
            // 
            // lbInputFile
            // 
            this.lbInputFile.AutoSize = true;
            this.lbInputFile.Location = new System.Drawing.Point(5, 49);
            this.lbInputFile.Name = "lbInputFile";
            this.lbInputFile.Size = new System.Drawing.Size(50, 13);
            this.lbInputFile.TabIndex = 13;
            this.lbInputFile.Text = "Input file:";
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.ForeColor = System.Drawing.SystemColors.Highlight;
            this.label1.Location = new System.Drawing.Point(5, 5);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(439, 26);
            this.label1.TabIndex = 21;
            this.label1.Text = "This sample illustrates the use of XMLDecryptor component for decrypting XML docu" +
    "ments. \r\nPlease pick the XML document and then click \'Decrypt\'. ";
            // 
            // frmMain
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(464, 181);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.edOutputFile);
            this.Controls.Add(this.sbBrowseOutputFile);
            this.Controls.Add(this.lDataFile);
            this.Controls.Add(this.edInputFile);
            this.Controls.Add(this.btnDecrypt);
            this.Controls.Add(this.sbBrowseInputFile);
            this.Controls.Add(this.lbInputFile);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
            this.MaximizeBox = false;
            this.Name = "frmMain";
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
            this.Text = "XML Decryptor Demo";
            this.ResumeLayout(false);
            this.PerformLayout();

    }
    #endregion

    /// <summary>
    /// The main entry point for the application.
    /// </summary>
    [STAThread]
    static void Main()
    {
        Application.Run(new frmMain());
    }

    private void sbBrowseInputFile_Click(object sender, EventArgs e)
    {
        dlgOpen.InitialDirectory = Application.StartupPath;
        dlgOpen.FileName = edInputFile.Text;
        if (dlgOpen.ShowDialog() == DialogResult.OK)
            edInputFile.Text = dlgOpen.FileName;
    }

    private void sbBrowseOutputFile_Click(object sender, EventArgs e)
    {
        dlgSave.InitialDirectory = Application.StartupPath;
        dlgSave.FileName = edOutputFile.Text;
        if (dlgSave.ShowDialog() == DialogResult.OK)
            edOutputFile.Text = dlgSave.FileName;
    }

    private void btnDecrypt_Click(object sender, EventArgs e)
    {
        try
        {
            decryptor.InputFile = edInputFile.Text;
            decryptor.OutputFile = edOutputFile.Text;

            decryptor.Decrypt();

            MessageBox.Show("XML file successfully decrypted");
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);
        }
    }
}