/*
 * 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 nsoftware.SecureBlackbox;
using System.IO;

namespace nsoftware.Demos
{
    /// <summary>
    /// Summary description for frmMain.
    /// </summary>
    public class xmlsignerDemo : System.Windows.Forms.Form
    {
        private System.Windows.Forms.Label lbXMLFile;
        private System.Windows.Forms.TextBox edXMLFile;
        private System.Windows.Forms.Button sbBrowseXMLFile;
        private System.Windows.Forms.OpenFileDialog dlgOpen;
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.Container components = null;
        private System.Windows.Forms.Button btnSign;

        private Button btnReferences;
        private GroupBox gbKeyInfo;
        public CheckBox cbIncludeKey;
        private TextBox edKeyName;
        private Label lbKeyName;
        private TextBox edOutputFile;
        private Button sbBrowseOutputFile;
        private Label label2;

        private ReferencesForm frmReferences;
        private SaveFileDialog dlgSave;
        public CheckBox cbDetached;
        private ComboBox cmbHashAlgorithm;
        private Label lbSignatureMethod;
        private ComboBox cmbCanonMethod;
        private Label lbCanonMethod;
        private Label label3;
        private Label label6;
        private Button btnBrowseCert;
        private TextBox edCertPassword;
        private TextBox edSigningCertificate;
        private Label lCertPassword;
        private TextBox edSignatureNode;
        private Label lbSignatureLocation;

        private XMLSigner m_Signer;
        private CertificateManager m_CertManager;

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

            //
            // TODO: Add any constructor code after InitializeComponent call
            //
            cmbCanonMethod.SelectedIndex = 0;
            cmbHashAlgorithm.SelectedIndex = 2;

            m_Signer = new XMLSigner();

            m_CertManager = new CertificateManager();

            frmReferences = new ReferencesForm(m_Signer.References); 
        }

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

                    m_Signer.Dispose();
                    m_CertManager.Dispose();
                    frmReferences.Dispose();
                }
            }
            base.Dispose(disposing);
        }

        #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.lbXMLFile = new System.Windows.Forms.Label();
            this.edXMLFile = new System.Windows.Forms.TextBox();
            this.sbBrowseXMLFile = new System.Windows.Forms.Button();
            this.btnSign = new System.Windows.Forms.Button();
            this.dlgOpen = new System.Windows.Forms.OpenFileDialog();
            this.btnReferences = new System.Windows.Forms.Button();
            this.gbKeyInfo = new System.Windows.Forms.GroupBox();
            this.label6 = new System.Windows.Forms.Label();
            this.btnBrowseCert = new System.Windows.Forms.Button();
            this.edCertPassword = new System.Windows.Forms.TextBox();
            this.edSigningCertificate = new System.Windows.Forms.TextBox();
            this.lCertPassword = new System.Windows.Forms.Label();
            this.cbIncludeKey = new System.Windows.Forms.CheckBox();
            this.edKeyName = new System.Windows.Forms.TextBox();
            this.lbKeyName = new System.Windows.Forms.Label();
            this.edOutputFile = new System.Windows.Forms.TextBox();
            this.sbBrowseOutputFile = new System.Windows.Forms.Button();
            this.label2 = new System.Windows.Forms.Label();
            this.dlgSave = new System.Windows.Forms.SaveFileDialog();
            this.edSignatureNode = new System.Windows.Forms.TextBox();
            this.lbSignatureLocation = new System.Windows.Forms.Label();
            this.cbDetached = new System.Windows.Forms.CheckBox();
            this.cmbHashAlgorithm = new System.Windows.Forms.ComboBox();
            this.lbSignatureMethod = new System.Windows.Forms.Label();
            this.cmbCanonMethod = new System.Windows.Forms.ComboBox();
            this.lbCanonMethod = new System.Windows.Forms.Label();
            this.label3 = new System.Windows.Forms.Label();
            this.gbKeyInfo.SuspendLayout();
            this.SuspendLayout();
            // 
            // lbXMLFile
            // 
            this.lbXMLFile.AutoSize = true;
            this.lbXMLFile.Location = new System.Drawing.Point(15, 38);
            this.lbXMLFile.Name = "lbXMLFile";
            this.lbXMLFile.Size = new System.Drawing.Size(50, 13);
            this.lbXMLFile.TabIndex = 0;
            this.lbXMLFile.Text = "Input file:";
            // 
            // edXMLFile
            // 
            this.edXMLFile.Location = new System.Drawing.Point(71, 35);
            this.edXMLFile.Name = "edXMLFile";
            this.edXMLFile.Size = new System.Drawing.Size(280, 20);
            this.edXMLFile.TabIndex = 1;
            // 
            // sbBrowseXMLFile
            // 
            this.sbBrowseXMLFile.Location = new System.Drawing.Point(357, 32);
            this.sbBrowseXMLFile.Name = "sbBrowseXMLFile";
            this.sbBrowseXMLFile.Size = new System.Drawing.Size(75, 25);
            this.sbBrowseXMLFile.TabIndex = 2;
            this.sbBrowseXMLFile.Text = "Browse ...";
            this.sbBrowseXMLFile.Click += new System.EventHandler(this.sbBrowseXMLFile_Click);
            // 
            // btnSign
            // 
            this.btnSign.Location = new System.Drawing.Point(607, 256);
            this.btnSign.Name = "btnSign";
            this.btnSign.Size = new System.Drawing.Size(75, 25);
            this.btnSign.TabIndex = 8;
            this.btnSign.Text = "Sign";
            this.btnSign.Click += new System.EventHandler(this.btnSign_Click);
            // 
            // btnReferences
            // 
            this.btnReferences.Location = new System.Drawing.Point(8, 256);
            this.btnReferences.Name = "btnReferences";
            this.btnReferences.Size = new System.Drawing.Size(75, 25);
            this.btnReferences.TabIndex = 6;
            this.btnReferences.Text = "References";
            this.btnReferences.Click += new System.EventHandler(this.btnReferences_Click);
            // 
            // gbKeyInfo
            // 
            this.gbKeyInfo.Controls.Add(this.edSignatureNode);
            this.gbKeyInfo.Controls.Add(this.lbSignatureLocation);
            this.gbKeyInfo.Controls.Add(this.cbDetached);
            this.gbKeyInfo.Controls.Add(this.label6);
            this.gbKeyInfo.Controls.Add(this.cmbHashAlgorithm);
            this.gbKeyInfo.Controls.Add(this.lbSignatureMethod);
            this.gbKeyInfo.Controls.Add(this.btnBrowseCert);
            this.gbKeyInfo.Controls.Add(this.cmbCanonMethod);
            this.gbKeyInfo.Controls.Add(this.edCertPassword);
            this.gbKeyInfo.Controls.Add(this.lbCanonMethod);
            this.gbKeyInfo.Controls.Add(this.edSigningCertificate);
            this.gbKeyInfo.Controls.Add(this.lCertPassword);
            this.gbKeyInfo.Controls.Add(this.cbIncludeKey);
            this.gbKeyInfo.Controls.Add(this.edKeyName);
            this.gbKeyInfo.Controls.Add(this.lbKeyName);
            this.gbKeyInfo.Location = new System.Drawing.Point(8, 100);
            this.gbKeyInfo.Name = "gbKeyInfo";
            this.gbKeyInfo.Size = new System.Drawing.Size(674, 148);
            this.gbKeyInfo.TabIndex = 5;
            this.gbKeyInfo.TabStop = false;
            this.gbKeyInfo.Text = "Signing options  ";
            // 
            // label6
            // 
            this.label6.AutoSize = true;
            this.label6.Location = new System.Drawing.Point(7, 28);
            this.label6.Name = "label6";
            this.label6.Size = new System.Drawing.Size(94, 13);
            this.label6.TabIndex = 65;
            this.label6.Text = "Signing certificate:";
            // 
            // btnBrowseCert
            // 
            this.btnBrowseCert.Location = new System.Drawing.Point(349, 22);
            this.btnBrowseCert.Name = "btnBrowseCert";
            this.btnBrowseCert.Size = new System.Drawing.Size(75, 25);
            this.btnBrowseCert.TabIndex = 2;
            this.btnBrowseCert.Text = "Browse ...";
            this.btnBrowseCert.Click += new System.EventHandler(this.btnBrowseCert_Click);
            // 
            // edCertPassword
            // 
            this.edCertPassword.Location = new System.Drawing.Point(107, 51);
            this.edCertPassword.Name = "edCertPassword";
            this.edCertPassword.PasswordChar = '*';
            this.edCertPassword.Size = new System.Drawing.Size(181, 20);
            this.edCertPassword.TabIndex = 3;
            // 
            // edSigningCertificate
            // 
            this.edSigningCertificate.Location = new System.Drawing.Point(107, 25);
            this.edSigningCertificate.Name = "edSigningCertificate";
            this.edSigningCertificate.Size = new System.Drawing.Size(236, 20);
            this.edSigningCertificate.TabIndex = 1;
            // 
            // lCertPassword
            // 
            this.lCertPassword.AutoSize = true;
            this.lCertPassword.Location = new System.Drawing.Point(45, 54);
            this.lCertPassword.Name = "lCertPassword";
            this.lCertPassword.Size = new System.Drawing.Size(56, 13);
            this.lCertPassword.TabIndex = 61;
            this.lCertPassword.Text = "Password:";
            // 
            // cbIncludeKey
            // 
            this.cbIncludeKey.Checked = true;
            this.cbIncludeKey.CheckState = System.Windows.Forms.CheckState.Checked;
            this.cbIncludeKey.Location = new System.Drawing.Point(10, 90);
            this.cbIncludeKey.Name = "cbIncludeKey";
            this.cbIncludeKey.Size = new System.Drawing.Size(184, 24);
            this.cbIncludeKey.TabIndex = 6;
            this.cbIncludeKey.Text = "Include Key (public part)";
            // 
            // edKeyName
            // 
            this.edKeyName.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
            | System.Windows.Forms.AnchorStyles.Right)));
            this.edKeyName.Location = new System.Drawing.Point(107, 116);
            this.edKeyName.Name = "edKeyName";
            this.edKeyName.Size = new System.Drawing.Size(236, 20);
            this.edKeyName.TabIndex = 7;
            // 
            // lbKeyName
            // 
            this.lbKeyName.AutoSize = true;
            this.lbKeyName.Location = new System.Drawing.Point(42, 119);
            this.lbKeyName.Name = "lbKeyName";
            this.lbKeyName.Size = new System.Drawing.Size(59, 13);
            this.lbKeyName.TabIndex = 0;
            this.lbKeyName.Text = "Key Name:";
            // 
            // edOutputFile
            // 
            this.edOutputFile.Location = new System.Drawing.Point(71, 65);
            this.edOutputFile.Name = "edOutputFile";
            this.edOutputFile.Size = new System.Drawing.Size(280, 20);
            this.edOutputFile.TabIndex = 3;
            // 
            // sbBrowseOutputFile
            // 
            this.sbBrowseOutputFile.Location = new System.Drawing.Point(357, 62);
            this.sbBrowseOutputFile.Name = "sbBrowseOutputFile";
            this.sbBrowseOutputFile.Size = new System.Drawing.Size(75, 25);
            this.sbBrowseOutputFile.TabIndex = 4;
            this.sbBrowseOutputFile.Text = "Browse ...";
            this.sbBrowseOutputFile.Click += new System.EventHandler(this.sbBrowseOutputFile_Click);
            // 
            // label2
            // 
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(7, 68);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(58, 13);
            this.label2.TabIndex = 18;
            this.label2.Text = "Output file:";
            // 
            // edSignatureNode
            // 
            this.edSignatureNode.Location = new System.Drawing.Point(519, 116);
            this.edSignatureNode.Name = "edSignatureNode";
            this.edSignatureNode.Size = new System.Drawing.Size(149, 20);
            this.edSignatureNode.TabIndex = 9;
            // 
            // lbSignatureLocation
            // 
            this.lbSignatureLocation.AutoSize = true;
            this.lbSignatureLocation.Location = new System.Drawing.Point(431, 119);
            this.lbSignatureLocation.Name = "lbSignatureLocation";
            this.lbSignatureLocation.Size = new System.Drawing.Size(82, 13);
            this.lbSignatureLocation.TabIndex = 16;
            this.lbSignatureLocation.Text = "Signature node:";
            // 
            // cbDetached
            // 
            this.cbDetached.AutoSize = true;
            this.cbDetached.Location = new System.Drawing.Point(416, 94);
            this.cbDetached.Name = "cbDetached";
            this.cbDetached.Size = new System.Drawing.Size(151, 17);
            this.cbDetached.TabIndex = 8;
            this.cbDetached.Text = "Create detached signature";
            // 
            // cmbHashAlgorithm
            // 
            this.cmbHashAlgorithm.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
            this.cmbHashAlgorithm.Items.AddRange(new object[] {
            "SHA1",
            "MD5",
            "SHA256",
            "SHA384",
            "SHA512",
            "RIPEMD160"});
            this.cmbHashAlgorithm.Location = new System.Drawing.Point(519, 24);
            this.cmbHashAlgorithm.Name = "cmbHashAlgorithm";
            this.cmbHashAlgorithm.Size = new System.Drawing.Size(149, 21);
            this.cmbHashAlgorithm.TabIndex = 4;
            // 
            // lbSignatureMethod
            // 
            this.lbSignatureMethod.AutoSize = true;
            this.lbSignatureMethod.Location = new System.Drawing.Point(435, 27);
            this.lbSignatureMethod.Name = "lbSignatureMethod";
            this.lbSignatureMethod.Size = new System.Drawing.Size(80, 13);
            this.lbSignatureMethod.TabIndex = 8;
            this.lbSignatureMethod.Text = "Hash algorithm:";
            // 
            // cmbCanonMethod
            // 
            this.cmbCanonMethod.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
            this.cmbCanonMethod.Items.AddRange(new object[] {
            "Canonical",
            "Canonical with comments",
            "Canonical v1.1",
            "Canonical with comments v1.1",
            "Exclusive canonical",
            "Exclusive canonical with comments",
            "Minimal canonical"});
            this.cmbCanonMethod.Location = new System.Drawing.Point(519, 51);
            this.cmbCanonMethod.Name = "cmbCanonMethod";
            this.cmbCanonMethod.Size = new System.Drawing.Size(149, 21);
            this.cmbCanonMethod.TabIndex = 5;
            // 
            // lbCanonMethod
            // 
            this.lbCanonMethod.AutoSize = true;
            this.lbCanonMethod.Location = new System.Drawing.Point(426, 54);
            this.lbCanonMethod.Name = "lbCanonMethod";
            this.lbCanonMethod.Size = new System.Drawing.Size(87, 13);
            this.lbCanonMethod.TabIndex = 2;
            this.lbCanonMethod.Text = "Canonicalization:";
            // 
            // label3
            // 
            this.label3.AutoSize = true;
            this.label3.ForeColor = System.Drawing.SystemColors.Highlight;
            this.label3.Location = new System.Drawing.Point(5, 5);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(582, 13);
            this.label3.TabIndex = 23;
            this.label3.Text = "This sample shows how to create XML signatures. Please select an input file, tune" +
    " up the signing options, and click \'Sign\'. ";
            // 
            // xmlsignerDemo
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(689, 291);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.btnReferences);
            this.Controls.Add(this.edOutputFile);
            this.Controls.Add(this.sbBrowseOutputFile);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.gbKeyInfo);
            this.Controls.Add(this.edXMLFile);
            this.Controls.Add(this.btnSign);
            this.Controls.Add(this.sbBrowseXMLFile);
            this.Controls.Add(this.lbXMLFile);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
            this.MaximizeBox = false;
            this.Name = "xmlsignerDemo";
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
            this.Text = "XML Signer Demo";
            this.gbKeyInfo.ResumeLayout(false);
            this.gbKeyInfo.PerformLayout();
            this.ResumeLayout(false);
            this.PerformLayout();

        }
        #endregion

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

        private void sbBrowseXMLFile_Click(object sender, System.EventArgs e)
        {
            dlgOpen.Filter = "XML file (*.xml)|*.XML";
            if (dlgOpen.ShowDialog() == DialogResult.OK)
                edXMLFile.Text = dlgOpen.FileName;
        }

        public Certificate LoadCertificate(string file, string password)
        {
            Certificate cert = null;

            if (file.Length > 0)
            {
                try
                {
                    m_CertManager.ImportFromFile(file, password);

                    cert = m_CertManager.Certificate;
                }
                catch (Exception ex)
                {
                    MessageBox.Show("Failed to load certificate: " + ex.Message);
                }
            }

            return cert;
        }

        private void btnSign_Click(object sender, System.EventArgs e)
        {
            m_Signer.OutputFile = edOutputFile.Text;

            if (cbDetached.Checked)
            {
                m_Signer.DataFile = edXMLFile.Text;
                m_Signer.DataType = XMLSignerDataTypes.cxdtBinary;
                m_Signer.DataURI = Path.GetFileName(edXMLFile.Text);
                m_Signer.SignatureType = XMLSignerSignatureTypes.cxstDetached;
            }
            else
            {
                m_Signer.InputFile = edXMLFile.Text;
                m_Signer.SignatureType = XMLSignerSignatureTypes.cxstEnveloped;
            }

            m_Signer.SigningCertificate = LoadCertificate(edSigningCertificate.Text, edCertPassword.Text);

            switch (cmbCanonMethod.SelectedIndex)
            {
                case 0:
                    {
                        m_Signer.CanonicalizationMethod = XMLSignerCanonicalizationMethods.cxcmCanon;
                        break;
                    }
                case 1:
                    {
                        m_Signer.CanonicalizationMethod = XMLSignerCanonicalizationMethods.cxcmCanonComment;
                        break;
                    }
                case 2:
                    {
                        m_Signer.CanonicalizationMethod = XMLSignerCanonicalizationMethods.cxcmCanon_v1_1;
                        break;
                    }
                case 3:
                    {
                        m_Signer.CanonicalizationMethod = XMLSignerCanonicalizationMethods.cxcmCanonComment_v1_1;
                        break;
                    }
                case 4:
                    {
                        m_Signer.CanonicalizationMethod = XMLSignerCanonicalizationMethods.cxcmExclCanon;
                        break;
                    }
                case 5:
                    {
                        m_Signer.CanonicalizationMethod = XMLSignerCanonicalizationMethods.cxcmExclCanonComment;
                        break;
                    }
                case 6:
                    {
                        m_Signer.CanonicalizationMethod = XMLSignerCanonicalizationMethods.cxcmMinCanon;
                        break;
                    }
                default:
                    {
                        m_Signer.CanonicalizationMethod = XMLSignerCanonicalizationMethods.cxcmCanon;
                        break;
                    }
            }

            m_Signer.HashAlgorithm = cmbHashAlgorithm.Text;

            m_Signer.Config("KeyName=" + edKeyName.Text);
            if (cbIncludeKey.Checked)
                m_Signer.Config("IncludeKey=true");
            else
                m_Signer.Config("IncludeKey=false");

            // Enable automatic signature formatting 
            m_Signer.Config("XMLFormatting=auto");

            m_Signer.XMLElement = edSignatureNode.Text;

            try
            {
                m_Signer.Sign();

                MessageBox.Show("XML document successfully signed");
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        private void btnReferences_Click(object sender, EventArgs e)
        {
            frmReferences.ShowDialog();
        }

        private string RequestPassword()
        {
            frmRequestPassword dlg = new frmRequestPassword();
            string s = "";
            if (dlg.ShowDialog() == DialogResult.OK)
            {
                s = dlg.tbInput.Text;
            }
            dlg.Dispose();
            return s;
        }

        private void sbBrowseOutputFile_Click(object sender, EventArgs e)
        {
            dlgOpen.Filter = "";
            if (dlgSave.ShowDialog() == DialogResult.OK)
                edOutputFile.Text = dlgSave.FileName;
        }

        private void btnBrowseCert_Click(object sender, EventArgs e)
        {
            if (dlgOpen.ShowDialog() == DialogResult.OK)
                edSigningCertificate.Text = dlgOpen.FileName;
        }
    }
}