public async Task <ActionResult <UploadResult> > UploadAsync([Required] IFormFile file, [FromQuery(Name = "p")] int protect, [FromQuery(Name = "u")] string user, [FromQuery(Name = "t")] long timestamp, [FromQuery(Name = "token")][Required] string token)
{
if (file == null)
{
throw new RequestException("No any files");
}
if (file.Name.IndexOfAny(ForbitChars) > -1)
{
throw new RequestException("The file name error");
}
if (!authModule.ValidUploadToken(user, file.FileName, protect, timestamp, token))
{
throw new AuthException("The validation is failed");
}
if (cacheModule.TryGetUploadName(token, out string name))
{
throw new AuthException($"The token is used, filename is {name}");
}
var random = new Random();
var protectFlag = protect == 1;
var code = string.Concat(DateTime.Now.ToString("yyyyMMddHHmmss"), protectFlag ? "1" : "0", "000", random.Next(1000, 9999));
var fileName = file.FileName;
var index = fileName.LastIndexOf('.');
if (index <= 0 || fileName.Length < index + 1)
{
throw new RequestException("The file has no extension");
}
var ext = fileName.Substring(index).ToLower();
if (!fileModule.AllowExt(ext))
{
throw new RequestException("The file type is not allowed");
}
var newName = code + ext;
await fileModule.SaveFileAsync(file, newName);
cacheModule.SetUploadName(token, newName);
logger.LogInformation($"upload|{user}|{newName}|{file.Length}|{file.Name}");
return(new UploadResult()
{
FileName = newName, Message = "ok"
});
}