private byte[] FetchFileBytes(FileLocation fileLocation,uint offset,uint limit)
{
if (fileLocation.DcId == _settings.NearestDcId)
{
using (var clientDisposable = new FullClientDisposable(this))
{
return FetchFileBytes(clientDisposable.Client, fileLocation,offset,limit);
}
}
else
{
try
{
var client = GetClient((int)fileLocation.DcId);
return FetchFileBytes(client, fileLocation,offset,limit);
}
catch (Exception ex)
{
DebugPrint("Failed to obtain client from DC manager: " + ex);
return null;
}
}
}
private static byte[] FetchFileBytes(TelegramClient client, FileLocation fileLocation)
{
try
{
var response = (UploadFile)TelegramUtils.RunSynchronously(client.Methods.UploadGetFileAsync(
new UploadGetFileArgs
{
Location = new InputFileLocation
{
VolumeId = fileLocation.VolumeId,
LocalId = fileLocation.LocalId,
Secret = fileLocation.Secret
},
Offset = 0,
Limit = uint.MaxValue,
}));
return response.Bytes;
}
catch (Exception ex)
{
Utils.DebugPrint("Exception while fetching file bytes");
return null;
}
}
private static byte[] FetchFileBytes(TelegramClient client, FileLocation fileLocation, uint offset, uint limit)
{
var response = (UploadFile)TelegramUtils.RunSynchronously(client.Methods.UploadGetFileAsync(
new UploadGetFileArgs
{
Location = new InputFileLocation
{
VolumeId = fileLocation.VolumeId,
LocalId = fileLocation.LocalId,
Secret = fileLocation.Secret
},
Offset = offset,
Limit = limit,
}));
return response.Bytes;
}
private async Task<IUploadFile> FetchFileBytes(TelegramClient client, FileLocation thumbnailLocation)
{
return await client.Methods.UploadGetFileAsync(new UploadGetFileArgs
{
Location = new InputFileLocation
{
VolumeId = thumbnailLocation.VolumeId,
LocalId = thumbnailLocation.LocalId,
Secret = thumbnailLocation.Secret
},
Offset = 0,
Limit = uint.MaxValue,
});
}