FormPublish.cs

// Name:        FormPublish.cs
// Description: Dialog box for uploading content to server
// Author:      Tim Chipman
// Origination: Work performed for BuildingSmart by Constructivity.com LLC.
// Copyright:   (c) 2013 BuildingSmart International Ltd.
// License:     http://www.buildingsmart-tech.org/legal

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Net;
using System.Text;
using System.Windows.Forms;
using IfcDoc.Schema.DOC;

namespace IfcDoc
{
    public partial class FormPublish : Form
    {
        string m_localpath;
        DocProject m_project;
        Exception m_exception;
        string m_username;
        string m_password; // use SecureString if/when bsDD is secured
        int m_protocol;
        bool m_download;

        public FormPublish()
        {
            InitializeComponent();
        }


        public bool Download
        {
            get
            {
                return this.m_download;
            }
            set
            {
                m_download = value;
                if(m_download)
                {
                    this.textBoxComments.Enabled = false;
                    this.Text = "Download";   
                }
                else
                {
                    this.textBoxComments.Enabled = true;
                    this.Text = "Upload";
                }
            }
        }

        public DocProject Project
        {
            get
            {
                return this.m_project;
            }
            set
            {
                this.m_project = value;
            }
        }

        public string Url
        {
            get
            {
                return this.textBoxUrl.Text;
            }
            set
            {
                this.textBoxUrl.Text = value;
            }
        }

        public string LocalPath
        {
            get
            {
                return this.m_localpath;
            }
            set
            {
                this.m_localpath = value;
            }
        }

        private void buttonOK_Click(object sender, EventArgs e)
        {
            // credentials
            if(this.comboBoxProtocol.SelectedIndex != 0)
            {
                using (FormCredentials formCred = new FormCredentials())
                {
                    if(formCred.ShowDialog(this) != System.Windows.Forms.DialogResult.OK)
                    {
                        return;
                    }

                    this.m_username = formCred.Username;
                    this.m_password = formCred.Password;
                }
            }

            this.textBoxUrl.Enabled = false;
            this.progressBar.Value = 0;
            this.buttonOK.Enabled = false;
            this.errorProvider.Clear();

            // start upload
            this.backgroundWorkerPublish.RunWorkerAsync();
        }

        private void backgroundWorkerPublish_DoWork(object sender, DoWorkEventArgs e)
        {
            // connect to server
            this.m_exception = null;
            try
            {
                switch(this.m_protocol)
                {
                    case 0:
                        {
                            WebRequest request = HttpWebRequest.Create(this.textBoxUrl.Text);
                            request.Method = "POST";

                            using (FileStream streamFile = new FileStream(this.m_localpath, FileMode.Open))
                            {
                                request.ContentLength = streamFile.Length;
                                request.ContentType = "application/step";
                                request.Headers[HttpRequestHeader.ContentLocation] = System.IO.Path.GetFileName(this.m_localpath);

                                // for now, treat content type as opaque document attachment (don't set Content-Type to 'application/step')
                                // future: treat as project file that be merged and compared

                                using (Stream streamWeb = request.GetRequestStream())
                                {
                                    {
                                        byte[] buffer = new byte[8192];
                                        int len = 0;
                                        do
                                        {
                                            len = streamFile.Read(buffer, 0, buffer.Length);
                                            if (len > 0)
                                            {
                                                streamWeb.Write(buffer, 0, len);
                                                this.backgroundWorkerPublish.ReportProgress((int)(100L * streamFile.Position / streamFile.Length));
                                            }
                                        } while (len > 0);
                                    }
                                }
                            }
                        }
                        break;

                    case 1:
                    case 2:
                        DataDictionary.Upload(this.m_project, this.backgroundWorkerPublish, this.textBoxUrl.Text, this.m_username, this.m_password);
                        break;
                }
            }
            catch (Exception x)
            {
                this.m_exception = x;
            }
        }

        private void backgroundWorkerPublish_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            this.progressBar.Value = e.ProgressPercentage;
        }

        private void backgroundWorkerPublish_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            if (m_exception != null)
            {
                this.textBoxUrl.Enabled = true;
                this.buttonOK.Enabled = true;
                this.errorProvider.SetError(this.labelError, this.m_exception.Message);
            }
            else
            {
                this.DialogResult = DialogResult.OK;
                this.Close();
            }
        }

        private void comboBoxProtocol_SelectedIndexChanged(object sender, EventArgs e)
        {
            switch(this.comboBoxProtocol.SelectedIndex)
            {
                case 0:
                    this.textBoxUrl.Text = "http://mvd.buildingsmart-tech.org/ifc4";
                    break;

                case 1:
                    this.textBoxUrl.Text = "http://test.bsdd.buildingsmart.org/";
                    break;

                case 2:
                    this.textBoxUrl.Text = "http://bsdd.buildingsmart.org/";
                    break;
            }

            this.m_protocol = this.comboBoxProtocol.SelectedIndex;
        }

        private void FormPublish_Load(object sender, EventArgs e)
        {
            this.comboBoxProtocol.SelectedIndex = 1;
        }
    }
}