public async Task <MTProtoGateway> GetFileGateway(ulong salt)
{
await _lock.WaitAsync();
// fileGateway = new MTProtoGateway(this, fileSession);
try {
if (fileGateway != null)
{
return(fileGateway);
}
if (fileSession == null)
{
fileSession = new TelegramFileSession(Helpers.GenerateRandomUlong(), 0);
}
fileGateway = new MTProtoGateway(this, fileSession, false, salt);
await fileGateway.ConnectAsync();
return(fileGateway);
}
finally {
_lock.Release();
}
}
private void GatewayOnBrokenSessionEvent()
{
logger.info("creating new session... TODO: destroy old session");
// creating new session
id = Helpers.GenerateRandomUlong();
sequence = 0;
gateway.Dispose();
gateway = new MTProtoGateway(MainDc, this, true, cachedSalt);
gateway.UpdatesEvent += updates.ProcessUpdates;
gateway.BrokenSessionEvent += GatewayOnBrokenSessionEvent;
}
public async Task <TLApi> GetFileSession(int dc)
{
logger.debug("Getting file session for dc {0}", dc);
await Established;
ConfigConstructor config = (ConfigConstructor)gateway.Config;
TelegramDC targetDc;
if (dcs.ContainsKey(dc))
{
targetDc = dcs[dc];
}
else
{
targetDc = new TelegramDC();
foreach (var dcOption in config.dc_options)
{
DcOptionConstructor optionConstructor = (DcOptionConstructor)dcOption;
if (optionConstructor.id == dc)
{
TelegramEndpoint endpoint = new TelegramEndpoint(optionConstructor.ip_address, optionConstructor.port);
targetDc.Endpoints.Add(endpoint);
}
}
dcs[dc] = targetDc;
}
MTProtoGateway fileGateway = await targetDc.GetFileGateway(gateway.Salt);
TLApi fileGatewayApi = new TLApi(fileGateway);
if (targetDc.FileAuthorized || dc == mainDcId)
{
return(fileGatewayApi);
}
Task <auth_ExportedAuthorization> exportAuthTask = Api.auth_exportAuthorization(dc);
Auth_exportedAuthorizationConstructor exportedAuth = (Auth_exportedAuthorizationConstructor)await exportAuthTask;
auth_Authorization authorization = await fileGatewayApi.auth_importAuthorization(exportedAuth.id, exportedAuth.bytes);
targetDc.SaveFileAuthorization(authorization);
return(fileGatewayApi);
}
// save timer end
public async Task ConnectAsync()
{
try {
if (gateway == null)
{
logger.info("creating new mtproto gateway...");
gateway = new MTProtoGateway(MainDc, this, true, cachedSalt);
gateway.UpdatesEvent += updates.ProcessUpdates;
gateway.BrokenSessionEvent += GatewayOnBrokenSessionEvent;
while (true)
{
try {
await gateway.ConnectAsync();
break;
} catch (MTProtoBrokenSessionException e) {
logger.info("broken session exception");
}
}
api = new TLApi(gateway);
logger.info("connection established, notifying");
//establishedTask.SetResult(null);
updates.RequestDifference();
gateway.ReconnectEvent += () => {
GoToOnline();
updates.RequestDifference();
};
GoToOnline();
if (!saveSessionTimerInitialized)
{
SaveSessionTimer();
saveSessionTimerInitialized = true;
}
}
}
catch (Exception ex) {
logger.error("session exception: {0}", ex);
throw ex;
}
}
public async Task Migrate(int dc)
{
if (gateway == null)
{
logger.error("gateway not found, migration impossible");
return;
}
if (gateway.Config == null)
{
logger.error("config in gateway not found, migration impossible");
return;
}
ConfigConstructor config = (ConfigConstructor)gateway.Config;
if (config.this_dc == dc)
{
logger.warning("migration to same dc: {0}", dc);
return;
}
TelegramDC newDc = new TelegramDC();
foreach (var dcOption in config.dc_options)
{
DcOptionConstructor optionConstructor = (DcOptionConstructor)dcOption;
if (optionConstructor.id == dc)
{
TelegramEndpoint endpoint = new TelegramEndpoint(optionConstructor.ip_address, optionConstructor.port);
newDc.Endpoints.Add(endpoint);
}
}
dcs[dc] = newDc;
mainDcId = dc;
gateway.Dispose();
gateway = null;
establishedTask = new TaskCompletionSource <object>();
ConnectAsync();
await Established;
}