public DownloadManager(Document document, Telegram telegram)
{
_document = document;
_fileSize = document.Size;
_telegram = telegram;
int dcId = (int)_document.DcId;
//initialize the dc we want to download from
if (_document.DcId != _telegram.Settings.NearestDcId)
{
Retry:
// if its not the nearest dc, it could be unintialized. so lets check and init it.
var dc = DcDatabase.Get(dcId);
if (dc == null)
{
_telegram.GetClient(dcId);
//after this our dc configuration is ready, the connection should die out in a 60 secs.
}
var dcCached = DcDatabase.Get(dcId);
if (dcCached == null)
{
return;
}
var dcOption = _telegram.Config.DcOptions.Cast <DcOption>().FirstOrDefault(x => x.Id == dcId);
var tcpConfig = new TcpClientTransportConfig(dcOption.IpAddress, (int)dcOption.Port);
var authInfo = new SharpMTProto.Authentication.AuthInfo(dcCached.Key,
BitConverter.ToUInt64(dcCached.Salt, 0));
_client = new TelegramClient(tcpConfig,
new ConnectionConfig(authInfo.AuthKey, authInfo.Salt), AppInfo);
TelegramUtils.RunSynchronously(_client.Connect());
try
{
TelegramUtils.RunSynchronously(_client.Methods.AccountGetAccountTTLAsync(new AccountGetAccountTTLArgs()));
}
catch (Exception x)
{
if (x.Message != null && x.Message.Contains("401"))
{
telegram.DebugPrint("Yikes! DC went down. Let's reinstate it...");
_client.Dispose();
DcDatabase.Delete(dcId);
goto Retry;
}
}
}
else
{
var tcpConfig = new TcpClientTransportConfig(_telegram.Settings.NearestDcIp, (int)_telegram.Settings.NearestDcPort);
var authInfo = new SharpMTProto.Authentication.AuthInfo(_telegram.Settings.AuthKey,
_telegram.Settings.Salt);
_client = new TelegramClient(tcpConfig,
new ConnectionConfig(authInfo.AuthKey, authInfo.Salt), AppInfo);
TelegramUtils.RunSynchronously(_client.Connect());
}
}
public DownloadManager(Document document, Telegram telegram)
{
_document = document;
_fileSize = document.Size;
_telegram = telegram;
int dcId = (int)_document.DcId;
//initialize the dc we want to download from
if (_document.DcId != _telegram.Settings.NearestDcId)
{
// if its not the nearest dc, it could be unintialized. so lets check and init it.
var dc = DcDatabase.Get(dcId);
if (dc == null)
{
_telegram.GetClient(dcId);
//after this our dc configuration is ready, the connection should die out in a 60 secs.
}
var dcCached = DcDatabase.Get(dcId);
var dcOption = _telegram.Config.DcOptions.Cast <DcOption>().FirstOrDefault(x => x.Id == dcId);
var tcpConfig = new TcpClientTransportConfig(dcOption.IpAddress, (int)dcOption.Port);
var authInfo = new SharpMTProto.Authentication.AuthInfo(dcCached.Key,
BitConverter.ToUInt64(dcCached.Salt, 0));
_client = new TelegramClient(tcpConfig,
new ConnectionConfig(authInfo.AuthKey, authInfo.Salt), AppInfo);
TelegramUtils.RunSynchronously(_client.Connect());
}
else
{
var tcpConfig = new TcpClientTransportConfig(_telegram.Settings.NearestDcIp, (int)_telegram.Settings.NearestDcPort);
var authInfo = new SharpMTProto.Authentication.AuthInfo(_telegram.Settings.AuthKey,
_telegram.Settings.Salt);
_client = new TelegramClient(tcpConfig,
new ConnectionConfig(authInfo.AuthKey, authInfo.Salt), AppInfo);
TelegramUtils.RunSynchronously(_client.Connect());
}
}
private async Task<IUploadFile> FetchUserThumbnail(IUser user, Telegram telegramService, bool small)
{
var thumbnailLocation = TelegramUtils.GetUserPhotoLocation(user, small);
if (thumbnailLocation == null)
{
return null;
}
if (thumbnailLocation.DcId == telegramService.Settings.NearestDcId)
{
using (var clientDisposable = new Telegram.FullClientDisposable(telegramService))
{
return await FetchFileBytes(clientDisposable.Client, thumbnailLocation);
}
}
else
{
try
{
var telegramClient = telegramService.GetClient((int) thumbnailLocation.DcId);
return await FetchFileBytes(telegramClient, thumbnailLocation);
}
catch (Exception ex)
{
Utils.DebugPrint("Failed to obtain client from DC manager: " + ex);
return null;
}
}
}