332 lines
14 KiB
C#
332 lines
14 KiB
C#
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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 EncPropsForm : Form
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{
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/// <summary>
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/// Required designer variable.
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/// </summary>
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private System.ComponentModel.IContainer components = null;
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/// <summary>
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/// Clean up any resources being used.
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/// </summary>
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/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
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protected override void Dispose(bool disposing)
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{
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if (disposing && (components != null))
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{
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components.Dispose();
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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.btnCancel = new System.Windows.Forms.Button();
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this.btnOK = new System.Windows.Forms.Button();
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this.gbEncProps = new System.Windows.Forms.GroupBox();
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this.lProvideCertificate = new System.Windows.Forms.Label();
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this.lProvidePassword = new System.Windows.Forms.Label();
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this.lMetadataStatus = new System.Windows.Forms.Label();
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this.tbCertPassword = new System.Windows.Forms.TextBox();
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this.btnBrowseCert = new System.Windows.Forms.Button();
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this.lCertPassword = new System.Windows.Forms.Label();
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this.lCertificate = new System.Windows.Forms.Label();
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this.tbCert = new System.Windows.Forms.TextBox();
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this.tbPassword = new System.Windows.Forms.TextBox();
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this.lEncryptionAlgorithm = new System.Windows.Forms.Label();
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this.openCertDialog = new System.Windows.Forms.OpenFileDialog();
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this.lInfo = new System.Windows.Forms.Label();
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this.gbEncProps.SuspendLayout();
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this.SuspendLayout();
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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(204, 296);
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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 = 3;
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this.btnCancel.Text = "Cancel";
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//
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// btnOK
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//
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this.btnOK.DialogResult = System.Windows.Forms.DialogResult.OK;
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this.btnOK.Location = new System.Drawing.Point(124, 296);
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this.btnOK.Name = "btnOK";
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this.btnOK.Size = new System.Drawing.Size(75, 23);
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this.btnOK.TabIndex = 2;
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this.btnOK.Text = "OK";
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//
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// gbEncProps
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//
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this.gbEncProps.Controls.Add(this.lProvideCertificate);
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this.gbEncProps.Controls.Add(this.lProvidePassword);
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this.gbEncProps.Controls.Add(this.lMetadataStatus);
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this.gbEncProps.Controls.Add(this.tbCertPassword);
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this.gbEncProps.Controls.Add(this.btnBrowseCert);
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this.gbEncProps.Controls.Add(this.lCertPassword);
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this.gbEncProps.Controls.Add(this.lCertificate);
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this.gbEncProps.Controls.Add(this.tbCert);
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this.gbEncProps.Controls.Add(this.tbPassword);
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this.gbEncProps.Controls.Add(this.lEncryptionAlgorithm);
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this.gbEncProps.Location = new System.Drawing.Point(12, 45);
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this.gbEncProps.Name = "gbEncProps";
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this.gbEncProps.Size = new System.Drawing.Size(367, 243);
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this.gbEncProps.TabIndex = 1;
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this.gbEncProps.TabStop = false;
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//
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// lProvideCertificate
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//
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this.lProvideCertificate.AutoSize = true;
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this.lProvideCertificate.Location = new System.Drawing.Point(16, 129);
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this.lProvideCertificate.Name = "lProvideCertificate";
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this.lProvideCertificate.Size = new System.Drawing.Size(162, 13);
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this.lProvideCertificate.TabIndex = 4;
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this.lProvideCertificate.Text = "Provide certificate for decryption:";
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//
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// lProvidePassword
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//
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this.lProvidePassword.AutoSize = true;
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this.lProvidePassword.Location = new System.Drawing.Point(16, 78);
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this.lProvidePassword.Name = "lProvidePassword";
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this.lProvidePassword.Size = new System.Drawing.Size(161, 13);
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this.lProvidePassword.TabIndex = 2;
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this.lProvidePassword.Text = "Provide password for decryption:";
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//
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// lMetadataStatus
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//
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this.lMetadataStatus.AutoSize = true;
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this.lMetadataStatus.Location = new System.Drawing.Point(16, 45);
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this.lMetadataStatus.Name = "lMetadataStatus";
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this.lMetadataStatus.Size = new System.Drawing.Size(86, 13);
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this.lMetadataStatus.TabIndex = 1;
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this.lMetadataStatus.Text = "Metadata status:";
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//
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// tbCertPassword
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//
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this.tbCertPassword.Enabled = false;
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this.tbCertPassword.Location = new System.Drawing.Point(32, 211);
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this.tbCertPassword.Name = "tbCertPassword";
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this.tbCertPassword.PasswordChar = '*';
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this.tbCertPassword.Size = new System.Drawing.Size(128, 20);
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this.tbCertPassword.TabIndex = 9;
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//
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// btnBrowseCert
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//
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this.btnBrowseCert.Enabled = false;
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this.btnBrowseCert.Location = new System.Drawing.Point(286, 163);
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this.btnBrowseCert.Name = "btnBrowseCert";
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this.btnBrowseCert.Size = new System.Drawing.Size(75, 27);
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this.btnBrowseCert.TabIndex = 7;
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this.btnBrowseCert.Text = "Browse...";
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this.btnBrowseCert.Click += new System.EventHandler(this.btnBrowseCert_Click);
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//
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// lCertPassword
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//
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this.lCertPassword.AutoSize = true;
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this.lCertPassword.Enabled = false;
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this.lCertPassword.Location = new System.Drawing.Point(32, 195);
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this.lCertPassword.Name = "lCertPassword";
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this.lCertPassword.Size = new System.Drawing.Size(105, 13);
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this.lCertPassword.TabIndex = 8;
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this.lCertPassword.Text = "Certificate password:";
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//
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// lCertificate
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//
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this.lCertificate.AutoSize = true;
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this.lCertificate.Enabled = false;
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this.lCertificate.Location = new System.Drawing.Point(32, 149);
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this.lCertificate.Name = "lCertificate";
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this.lCertificate.Size = new System.Drawing.Size(110, 13);
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this.lCertificate.TabIndex = 5;
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this.lCertificate.Text = "Decryption certificate:";
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//
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// tbCert
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//
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this.tbCert.Enabled = false;
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this.tbCert.Location = new System.Drawing.Point(32, 167);
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this.tbCert.Name = "tbCert";
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this.tbCert.Size = new System.Drawing.Size(248, 20);
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this.tbCert.TabIndex = 6;
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//
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// tbPassword
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//
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this.tbPassword.Location = new System.Drawing.Point(35, 97);
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this.tbPassword.Name = "tbPassword";
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this.tbPassword.PasswordChar = '*';
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this.tbPassword.Size = new System.Drawing.Size(128, 20);
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this.tbPassword.TabIndex = 3;
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//
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// lEncryptionAlgorithm
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//
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this.lEncryptionAlgorithm.AutoSize = true;
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this.lEncryptionAlgorithm.Location = new System.Drawing.Point(16, 19);
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this.lEncryptionAlgorithm.Name = "lEncryptionAlgorithm";
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this.lEncryptionAlgorithm.Size = new System.Drawing.Size(105, 13);
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this.lEncryptionAlgorithm.TabIndex = 0;
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this.lEncryptionAlgorithm.Text = "Encryption algorithm:";
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//
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// openCertDialog
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//
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this.openCertDialog.Filter = "Raw X.509 certificate (*.cer, *.csr, *.crt)|*.CER;*.CSR;*.CRT|Base64-encoded X.50" +
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"9 certificate (*.pem)|*.PEM|PKCS#12 certificate (*.pfx, *.p12)|*.PFX; *.P12|All " +
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"files (*.*)|*.*";
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this.openCertDialog.InitialDirectory = ".";
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//
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// lInfo
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//
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this.lInfo.ForeColor = System.Drawing.SystemColors.Highlight;
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this.lInfo.Location = new System.Drawing.Point(9, 9);
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this.lInfo.Name = "lInfo";
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this.lInfo.Size = new System.Drawing.Size(371, 35);
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this.lInfo.TabIndex = 0;
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this.lInfo.Text = "The PDF document is encrypted. Depending on the document\'s encryption type you wo" +
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"uld need to provide a decryption password or decryption certificate.";
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this.lInfo.UseMnemonic = false;
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//
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// EncPropsForm
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//
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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.ClientSize = new System.Drawing.Size(389, 327);
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this.Controls.Add(this.lInfo);
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this.Controls.Add(this.btnCancel);
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this.Controls.Add(this.btnOK);
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this.Controls.Add(this.gbEncProps);
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this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
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this.MaximizeBox = false;
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this.Name = "EncPropsForm";
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this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
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this.Text = "Encryption properties";
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this.gbEncProps.ResumeLayout(false);
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this.gbEncProps.PerformLayout();
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this.ResumeLayout(false);
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}
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#endregion
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private System.Windows.Forms.Button btnCancel;
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private System.Windows.Forms.Button btnOK;
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private System.Windows.Forms.GroupBox gbEncProps;
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private System.Windows.Forms.TextBox tbCertPassword;
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private System.Windows.Forms.Button btnBrowseCert;
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private System.Windows.Forms.Label lCertPassword;
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private System.Windows.Forms.Label lCertificate;
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private System.Windows.Forms.TextBox tbCert;
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private System.Windows.Forms.TextBox tbPassword;
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private System.Windows.Forms.OpenFileDialog openCertDialog;
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private System.Windows.Forms.Label lProvideCertificate;
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private System.Windows.Forms.Label lProvidePassword;
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private System.Windows.Forms.Label lMetadataStatus;
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private System.Windows.Forms.Label lInfo;
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private System.Windows.Forms.Label lEncryptionAlgorithm;
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public EncPropsForm()
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{
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InitializeComponent();
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}
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private void btnBrowseCert_Click(object sender, EventArgs e)
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{
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openCertDialog.FileName = tbCert.Text;
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if (openCertDialog.ShowDialog() == DialogResult.OK)
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tbCert.Text = openCertDialog.FileName;
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}
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private int m_Count = 0;
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public void SetPDFEncryptionProps(PDFDecryptor PDFDecryptor)
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{
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string Alg = PDFDecryptor.DocumentInfo.EncryptionAlgorithm;
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if (Alg == "RC4")
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{
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Alg = Alg + "/" + PDFDecryptor.Config("RC4KeyBits");
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}
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lEncryptionAlgorithm.Text = "Encryption algorithm: " + Alg;
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if (PDFDecryptor.DocumentInfo.EncryptionType == PDFEncryptionTypes.petPassword)
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{
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if (m_Count > 0)
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MessageBox.Show("Invalid password", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
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if (PDFDecryptor.DocumentInfo.MetadataEncrypted)
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lMetadataStatus.Text = "Metadata status: encrypted";
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else
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lMetadataStatus.Text = "Metadata status: not encrypted";
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lProvidePassword.Enabled = true;
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tbPassword.Enabled = true;
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lProvideCertificate.Enabled = false;
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tbCert.Enabled = false;
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tbCertPassword.Enabled = false;
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btnBrowseCert.Enabled = false;
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}
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else
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{
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lMetadataStatus.Text = ""; // metadata status could be read only after decryption
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lProvidePassword.Enabled = false;
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tbPassword.Enabled = false;
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lProvideCertificate.Enabled = true;
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tbCert.Enabled = true;
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tbCertPassword.Enabled = true;
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btnBrowseCert.Enabled = true;
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}
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}
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public Certificate LoadCertificate(string file, string password)
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{
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Certificate cert = null;
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if (file.Length > 0)
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{
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try
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{
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CertificateManager certmanager = new CertificateManager();
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certmanager.ImportFromFile(file, password);
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cert = certmanager.Certificate;
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}
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catch (Exception e)
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{
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MessageBox.Show("Cannot load certificate!");
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}
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}
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return cert;
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}
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public void GetPDFDecryptionInfo(PDFDecryptor PDFDecryptor)
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{
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if (PDFDecryptor.DocumentInfo.EncryptionType == PDFEncryptionTypes.petPassword)
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PDFDecryptor.Password = tbPassword.Text;
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else
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{
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try
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{
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PDFDecryptor.DecryptionCertificate = LoadCertificate(tbCert.Text, tbCertPassword.Text);
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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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m_Count++;
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}
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}
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}
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}
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