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);
}
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;
}
