public JsonResult GetMail(int? timezoneOffset, bool showUnreadOnly, bool showPreview, string folderName)
{
var successful = false;
var output = new List<GmailThread>();
var unreadCount = 0;
var folders = new List<string>();
if (Request.IsAuthenticated)
{
using (var uow = new UnitOfWork(GlobalConfig.ConnectionString))
{
var user = uow.UserRepository.GetUserByUsername(User.Identity.Name);
if (DateTime.Compare(DateTime.Now, user.OAuthAccessTokenExpiration) < 0)
{
using (
var imap = new ImapClient("imap.gmail.com", user.EmailAddress,
user.CurrentOAuthAccessToken, AuthMethods.SaslOAuth, 993, true,
true))
{
imap.SelectMailbox(folderName);
var listMailboxes = imap.ListMailboxes(string.Empty, "*");
foreach (var listMailbox in listMailboxes)
{
if (!listMailbox.Name.StartsWith("[Gmail]") &&
String.Compare(listMailbox.Name, folderName, StringComparison.OrdinalIgnoreCase) != 0)
{
folders.Add(listMailbox.Name);
}
}
var searchCondition = SearchCondition.Undeleted();
if (showUnreadOnly)
{
searchCondition = searchCondition.And(SearchCondition.Unseen());
}
//Get messages and organize into threads
var uidCollection = imap.Search(searchCondition);
var messages = new List<GmailMessage>();
foreach (var uid in uidCollection)
{
var cacheKey = "gmail_" + uid + (showPreview ? "_WPrev" : "");
var mailMessageBytes = HttpContext.Cache.Get(cacheKey) as byte[];
if (mailMessageBytes == null)
{
var mailMessage = new GmailMessage(imap.GetMessage(uid, !showPreview, false));
var encryptedMessage = GlobalConfig.Encryptor.EncryptString(JsonConvert.SerializeObject(mailMessage));
HttpContext.Cache.Insert(cacheKey, encryptedMessage);
messages.Add(mailMessage);
}
else
{
var decryptedMessage = GlobalConfig.Encryptor.DecryptString(mailMessageBytes);
var mailMessage = JsonConvert.DeserializeObject<GmailMessage>(decryptedMessage);
messages.Add(mailMessage);
}
}
var threads = new Dictionary<long, GmailMessage>();
var threadMessages = new Dictionary<long, List<long>>();
var threadCounts = new Dictionary<long, int>();
foreach (var m in messages.OrderByDescending(m => m.MessageDate))
{
var headers = m.Headers;
var gmailThreadId = long.Parse(headers["X-GM-THRID"]);
if (!threads.ContainsKey(gmailThreadId))
{
threads.Add(gmailThreadId, m);
threadCounts.Add(gmailThreadId, 1);
threadMessages.Add(gmailThreadId, new List<long> {m.Uid});
}
else
{
threadCounts[gmailThreadId] += 1;
threadMessages[gmailThreadId].Add(m.Uid);
}
}
//Bundle threads
foreach (var thread in threads)
{
var messageDate = (thread.Value.MessageDate.Ticks > 0
? (timezoneOffset.HasValue
? thread.Value.MessageDate.ToUniversalTime().AddMinutes(timezoneOffset.Value)
: thread.Value.MessageDate.ToUniversalTime())
: new DateTime(1900, 1, 1));
var messageDateString = (DateTime.Compare(messageDate.Date, DateTime.Now.Date) == 0
? messageDate.ToShortTimeString()
: messageDate.ToShortDateString());
var unread = !(thread.Value.MessageFlags.HasFlag(GmailMessage.Flags.Seen));
if (unread)
{
unreadCount++;
}
output.Add(new GmailThread
{
Subject = thread.Value.Subject,
From =
thread.Value.FromDisplayName +
(threadCounts[thread.Key] > 1 ? " (" + threadCounts[thread.Key] + ")" : ""),
ThreadIdHex = thread.Key.ToString("X").ToLower(),
ThreadId = thread.Key,
ThreadMessageIds = string.Join(",", threadMessages[thread.Key].ToArray()),
Date = messageDateString,
Preview = (showPreview ? getPreview(thread.Value.Body) : ""),
Unread = unread,
Important =
(thread.Value.Headers.ContainsKey("X-GM-LABELS") &&
thread.Value.Headers["X-GM-LABELS"].Equals("\"\\\\Important\""))
});
}
successful = true;
}
}
}
}
return Json(
new {Result = successful, Data = output, UnreadCount = unreadCount, Folders = folders.ToArray()},
JsonRequestBehavior.AllowGet);
}