private bool ExtractAttatchments(MailerSearch _search, Action <string> callback)
{
using (ImapClient Client = new ImapClient(this.Host, this.Port, this.UserName, this.Password, AuthMethodType, this.Ssl))
{
var b = Client.ListMailboxes();
IEnumerable <uint> uids = Client.Search(_search.SetSearchConditions());
IEnumerable <MailMessage> messages = Client.GetMessages(uids, FetchOptions.Normal);
// Lets Create a Parent Directory with Current DateTime Stamp
RootFolderWithUniqueName(_search);
int index = 0;
foreach (var msg in messages)
{
foreach (var view in msg.AlternateViews)
{
// Generate a Folder with Current Datetime of Email and Attatchment File Name
GenerateDirectorySaveAtttachment(msg, ref index, view, _search);
}
foreach (var attachment in msg.Attachments)
{
// Generate a Folder with Current Datetime of Email and Attatchment File Name
GenerateDirectorySaveAtttachment(msg, ref index, attachment, _search);
}
}
callback(this.RootPath);
}
return(true);
}
private void RootFolderWithUniqueName(MailerSearch filters)
{
var currentStamp = DateTime.Now.ToString("dd-MMM-yyyy_hh-mm-ss");
this.RootPath = Path.Combine(this.RootPath, currentStamp);
System.IO.Directory.CreateDirectory(this.RootPath); // Creates PATH/12-Oct-2020_10-13-55
if (!String.IsNullOrEmpty(filters.Sender))
{
this.RootPath = Path.Combine(this.RootPath, filters.Sender);
System.IO.Directory.CreateDirectory(this.RootPath); // Creates PATH/12-Oct-2020_10-13-55
}
if (!String.IsNullOrEmpty(filters.Subject))
{
Regex rgx = new Regex("[^a-zA-Z0-9 -]");
string subFolder = rgx.Replace(filters.Subject, "");
this.RootPath = Path.Combine(this.RootPath, subFolder);
System.IO.Directory.CreateDirectory(this.RootPath); // Creates PATH/12-Oct-2020_10-13-55
}
}
private void GenerateDirectorySaveAtttachment(MailMessage msg, ref int index, Attachment attachment, MailerSearch filters)
{
if (filters.SmallerThenSize == true && attachment.ContentStream.Length <= filters.SmallerThenSizeValue)
{
return;
}
var msgDate = (msg.Date() == null) ? "n_a" : ((DateTime)msg.Date()).ToString("dd-MMM-yyyy");
var attatchmentPath = Path.Combine(this.RootPath, msgDate);
System.IO.Directory.CreateDirectory(attatchmentPath);
string filename = Path.Combine(attatchmentPath, String.Format("{0}_a_{1}{2}", Path.GetFileNameWithoutExtension(attachment.Name), index, Path.GetExtension(attachment.Name)));
using (var fileStream = File.Create(filename))
{
attachment.ContentStream.Seek(0, SeekOrigin.Begin);
attachment.ContentStream.CopyTo(fileStream);
}
index++;
}
public Task <bool> Download(MailerSearch _search, Action <string> callback)
{
return(Task.Run(() => { ExtractAttatchments(_search, callback); }).ContinueWith(t => t.IsFaulted ? false : true));
}
private void GenerateDirectorySaveAtttachment(MailMessage msg, ref int index, AlternateView attachment, MailerSearch filters)
{
if (attachment.ContentType.MediaType.ToLower().Contains("image"))
{
if (filters.SmallerThenSize == true && attachment.ContentStream.Length <= filters.SmallerThenSizeValue)
{
return;
}
var a = attachment.ContentStream.Length;
if (attachment.ContentId == "[email protected]")
{
// int aaa = 1;
}
var msgDate = (msg.Date() == null) ? "n_a" : ((DateTime)msg.Date()).ToString("dd-MMM-yyyy");
var attatchmentPath = Path.Combine(this.RootPath, msgDate);
System.IO.Directory.CreateDirectory(attatchmentPath);
string filename = Path.Combine(attatchmentPath, String.Format("{0}_v_{1}{2}", attachment.ContentId, index, ".jpg"));
using (var fileStream = File.Create(filename))
{
attachment.ContentStream.Seek(0, SeekOrigin.Begin);
attachment.ContentStream.CopyTo(fileStream);
}
index++;
}
}
