/// <summary>
/// Checking that the file is not null, its size is not zero and its extension is correct
/// </summary>
/// <param name="file">Sended file for check</param>
/// <returns>Result of checing file</returns>
private static UploadResult CheckFile(HttpPostedFileBase file)
{
if (file == null)
{
return(UploadResultFactory.MakeError("The file is empty."));
}
if (file.ContentLength <= 0)
{
return(UploadResultFactory.MakeError("The file size is zero."));
}
if (!IsWhiteExtention(TakeFileExtention(file)))
{
return(UploadResultFactory.MakeError("File format is not acceptable."));
}
return(UploadResultFactory.MakeSuccess());
}
/// <summary>
/// Save the file to destination
/// </summary>
/// <param name="file">file that you want to save it</param>
/// <param name="destination">destination for save file</param>
/// <returns>Result of file upload</returns>
public static UploadResult Upload(HttpPostedFileBase file, string destination)
{
try
{
var result = CheckFile(file);
if (result.Error)
{
return(result);
}
else
{
var savedFileName = SaveFile(file, destination);
return(UploadResultFactory.MakeSuccess(savedFileName));
}
}
catch (Exception ex)
{
return(UploadResultFactory.MakeError(ex.Message));
}
}