274 lines
11 KiB
C#
274 lines
11 KiB
C#
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/*
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* SecureBlackbox 2024 .NET Edition - Sample Project
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*
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* This sample project demonstrates the usage of SecureBlackbox in a
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* simple, straightforward way. It is not intended to be a complete
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* application. Error handling and other checks are simplified for clarity.
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*
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* www.nsoftware.com/secureblackbox
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*
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* This code is subject to the terms and conditions specified in the
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* corresponding product license agreement which outlines the authorized
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* usage and restrictions.
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*
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*/
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using System;
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using System.Windows.Forms;
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using nsoftware.SecureBlackbox;
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namespace PDFDecryptorDemo
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{
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public class MainForm : System.Windows.Forms.Form
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{
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private System.Windows.Forms.Button btnBrowseSource;
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private System.Windows.Forms.Button btnBrowseDest;
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private System.Windows.Forms.Label lSource;
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private System.Windows.Forms.Label lDest;
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private System.Windows.Forms.TextBox tbSource;
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private System.Windows.Forms.TextBox tbDest;
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private System.Windows.Forms.Button btnDecrypt;
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private System.Windows.Forms.Button btnCancel;
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private System.Windows.Forms.OpenFileDialog openPDFDialog;
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private System.Windows.Forms.SaveFileDialog savePDFDialog;
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private System.Windows.Forms.Label lDemoInfo;
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/// <summary>
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/// Required designer variable.
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/// </summary>
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private System.ComponentModel.Container components = null;
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public MainForm()
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{
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//
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// Required for Windows Form Designer support
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//
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InitializeComponent();
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//
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// TODO: Add any constructor code after InitializeComponent call
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//
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}
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/// <summary>
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/// Clean up any resources being used.
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/// </summary>
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protected override void Dispose(bool disposing)
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{
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if (disposing)
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{
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if (components != null)
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{
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components.Dispose();
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}
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}
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base.Dispose(disposing);
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}
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#region Windows Form Designer generated code
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/// <summary>
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/// Required method for Designer support - do not modify
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/// the contents of this method with the code editor.
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/// </summary>
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private void InitializeComponent()
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{
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this.tbSource = new System.Windows.Forms.TextBox();
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this.tbDest = new System.Windows.Forms.TextBox();
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this.btnBrowseSource = new System.Windows.Forms.Button();
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this.btnBrowseDest = new System.Windows.Forms.Button();
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this.lSource = new System.Windows.Forms.Label();
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this.lDest = new System.Windows.Forms.Label();
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this.btnDecrypt = new System.Windows.Forms.Button();
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this.btnCancel = new System.Windows.Forms.Button();
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this.openPDFDialog = new System.Windows.Forms.OpenFileDialog();
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this.savePDFDialog = new System.Windows.Forms.SaveFileDialog();
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this.lDemoInfo = new System.Windows.Forms.Label();
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this.SuspendLayout();
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//
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// tbSource
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//
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this.tbSource.Location = new System.Drawing.Point(8, 62);
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this.tbSource.Name = "tbSource";
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this.tbSource.Size = new System.Drawing.Size(288, 21);
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this.tbSource.TabIndex = 0;
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//
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// tbDest
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//
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this.tbDest.Location = new System.Drawing.Point(8, 110);
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this.tbDest.Name = "tbDest";
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this.tbDest.Size = new System.Drawing.Size(288, 21);
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this.tbDest.TabIndex = 2;
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//
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// btnBrowseSource
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//
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this.btnBrowseSource.Location = new System.Drawing.Point(304, 61);
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this.btnBrowseSource.Name = "btnBrowseSource";
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this.btnBrowseSource.Size = new System.Drawing.Size(75, 23);
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this.btnBrowseSource.TabIndex = 1;
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this.btnBrowseSource.Text = "Browse...";
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this.btnBrowseSource.Click += new System.EventHandler(this.btnBrowseSource_Click);
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//
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// btnBrowseDest
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//
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this.btnBrowseDest.Location = new System.Drawing.Point(304, 109);
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this.btnBrowseDest.Name = "btnBrowseDest";
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this.btnBrowseDest.Size = new System.Drawing.Size(75, 23);
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this.btnBrowseDest.TabIndex = 3;
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this.btnBrowseDest.Text = "Browse...";
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this.btnBrowseDest.Click += new System.EventHandler(this.btnBrowseDest_Click);
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//
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// lSource
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//
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this.lSource.AutoSize = true;
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this.lSource.Location = new System.Drawing.Point(8, 44);
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this.lSource.Name = "lSource";
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this.lSource.Size = new System.Drawing.Size(83, 13);
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this.lSource.TabIndex = 4;
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this.lSource.Text = "Source PDF file:";
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//
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// lDest
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//
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this.lDest.AutoSize = true;
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this.lDest.Location = new System.Drawing.Point(8, 92);
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this.lDest.Name = "lDest";
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this.lDest.Size = new System.Drawing.Size(104, 13);
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this.lDest.TabIndex = 5;
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this.lDest.Text = "Destination PDF file:";
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//
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// btnDecrypt
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//
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this.btnDecrypt.DialogResult = System.Windows.Forms.DialogResult.OK;
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this.btnDecrypt.Location = new System.Drawing.Point(117, 148);
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this.btnDecrypt.Name = "btnDecrypt";
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this.btnDecrypt.Size = new System.Drawing.Size(75, 23);
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this.btnDecrypt.TabIndex = 4;
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this.btnDecrypt.Text = "Decrypt";
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this.btnDecrypt.Click += new System.EventHandler(this.btnDecrypt_Click);
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//
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// btnCancel
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//
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this.btnCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
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this.btnCancel.Location = new System.Drawing.Point(197, 148);
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this.btnCancel.Name = "btnCancel";
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this.btnCancel.Size = new System.Drawing.Size(75, 23);
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this.btnCancel.TabIndex = 5;
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this.btnCancel.Text = "Cancel";
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this.btnCancel.Click += new System.EventHandler(this.btnCancel_Click);
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//
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// openPDFDialog
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//
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this.openPDFDialog.Filter = "PDF files (*.pdf)|*.pdf|All files (*.*)|*.*";
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this.openPDFDialog.InitialDirectory = ".";
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//
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// savePDFDialog
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//
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this.savePDFDialog.Filter = "PDF files (*.pdf)|*.pdf|All files (*.*)|*.*";
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this.savePDFDialog.InitialDirectory = ".";
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//
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// lDemoInfo
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//
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this.lDemoInfo.ForeColor = System.Drawing.SystemColors.Highlight;
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this.lDemoInfo.Location = new System.Drawing.Point(8, 2);
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this.lDemoInfo.Name = "lDemoInfo";
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this.lDemoInfo.Size = new System.Drawing.Size(371, 40);
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this.lDemoInfo.TabIndex = 9;
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this.lDemoInfo.Text = "This sample illustrates the use of PDFDecryptor component for decrypting PDF docu" +
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"ments. Please pick the PDF document and then click \'Decrypt\'";
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this.lDemoInfo.UseMnemonic = false;
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//
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// MainForm
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//
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this.AcceptButton = this.btnDecrypt;
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this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
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this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
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this.CancelButton = this.btnCancel;
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this.ClientSize = new System.Drawing.Size(389, 182);
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this.Controls.Add(this.lDemoInfo);
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this.Controls.Add(this.btnCancel);
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this.Controls.Add(this.btnDecrypt);
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this.Controls.Add(this.lDest);
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this.Controls.Add(this.lSource);
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this.Controls.Add(this.btnBrowseDest);
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this.Controls.Add(this.btnBrowseSource);
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this.Controls.Add(this.tbDest);
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this.Controls.Add(this.tbSource);
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this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(204)));
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this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
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this.MaximizeBox = false;
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this.Name = "MainForm";
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this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
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this.Text = "PDF Decryptor demo";
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this.ResumeLayout(false);
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this.PerformLayout();
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}
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#endregion
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/// <summary>
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/// The main entry point for the application.
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/// </summary>
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[STAThread]
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static void Main()
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{
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Application.Run(new MainForm());
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}
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private void btnBrowseSource_Click(object sender, System.EventArgs e)
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{
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openPDFDialog.FileName = tbSource.Text;
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if (openPDFDialog.ShowDialog() == DialogResult.OK)
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tbSource.Text = openPDFDialog.FileName;
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}
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private void btnBrowseDest_Click(object sender, System.EventArgs e)
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{
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savePDFDialog.FileName = tbDest.Text;
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if (savePDFDialog.ShowDialog() == DialogResult.OK)
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tbDest.Text = savePDFDialog.FileName;
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}
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private void btnDecrypt_Click(object sender, System.EventArgs e)
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{
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using (PDFDecryptor PDFDecryptor = new PDFDecryptor())
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{
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try
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{
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PDFDecryptor.OnEncrypted += PDFDecryptor_OnEncrypted;
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PDFDecryptor.InputFile = tbSource.Text;
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PDFDecryptor.OutputFile = tbDest.Text;
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PDFDecryptor.Decrypt();
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MessageBox.Show("PDF document successfully decrypted", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
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}
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catch (Exception ex)
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{
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MessageBox.Show("Error: " + ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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this.Close();
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}
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private void PDFDecryptor_OnEncrypted(object sender, PDFDecryptorEncryptedEventArgs e)
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{
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using (EncPropsForm FormPdfencprops = new EncPropsForm())
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{
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FormPdfencprops.SetPDFEncryptionProps(sender as PDFDecryptor);
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e.SkipThis = (FormPdfencprops.ShowDialog() == DialogResult.Cancel);
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FormPdfencprops.GetPDFDecryptionInfo(sender as PDFDecryptor);
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}
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}
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private void btnCancel_Click(object sender, System.EventArgs e)
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{
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this.Close();
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}
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}
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}
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