using System.IO;
using System.Linq;
using System.Windows.Forms;
using ADODB;
using CDO;
using System.Diagnostics;
using Stream = ADODB.Stream;
using System;
namespace EmlReader.WinForm
{
public partial class EmlViewer : Form
{
public EmlViewer()
{
InitializeComponent();
}
public void OpenEml(string filepath)
{
try
{
var stream = new StreamClass();
stream.Open();
stream.LoadFromFile(filepath);
stream.Flush();
var mail = new MessageClass();
mail.DataSource.OpenObject(stream, "_Stream");
mail.DataSource.Save();
fromBox.Text = mail.From;
toBox.Text = mail.To;
ccBox.Text = mail.CC;
bccBox.Text = mail.BCC;
subjectBox.Text = mail.Subject;
bodyBox.Text = mail.TextBody;
attachmentsPanel.Controls.Clear();
foreach (IBodyPart attachment in mail.Attachments)
{
var linkLabel = new LinkLabel
{
Text = attachment.FileName,
AutoSize = true,
};
linkLabel.Links.Add(0, linkLabel.Text.Length, attachment.GetDecodedContentStream());
linkLabel.LinkClicked = LinkLabelLinkClicked;
linkLabel.Disposed = LinkLabelDisposed;
attachmentsPanel.Controls.Add(linkLabel);
}
stream.Close();
}
catch (Exception)
{
MessageBox.Show(this, "An error occured while opening the file", "Email could not be opened",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
static void LinkLabelDisposed(object sender, EventArgs e)
{
var linkLabel = sender as LinkLabel;
if (linkLabel == null) return;
foreach (LinkLabel.Link link in linkLabel.Links)
((Stream)link.LinkData).Close();
}
static void LinkLabelLinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
var linkLabel = sender as LinkLabel;
if (linkLabel == null) return;
var fileName = linkLabel.Text;
linkLabel.LinkVisited = true;
var stream = e.Link.LinkData as Stream;
if (stream == null) return;
var tempFile = Path.Combine(Path.GetTempPath(), fileName);
stream.SaveToFile(tempFile, SaveOptionsEnum.adSaveCreateOverWrite);
Process.Start(tempFile);
}
private void EmlViewerDragDrop(object sender, DragEventArgs e)
{
var files = (string[])e.Data.GetData(DataFormats.FileDrop);
OpenEml(files.First());
}
private void EmlViewerDragEnter(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.FileDrop)) e.Effect = DragDropEffects.Copy;
}
private void OpenButtonClick(object sender, EventArgs e)
{
openFileDialog.ShowDialog(this);
}
private void OpenFileDialogFileOk(object sender, System.ComponentModel.CancelEventArgs e)
{
var dialog = sender as FileDialog;
if (dialog == null) return;
OpenEml(dialog.FileName);
}
}
}
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