public HttpResponseMessage GetValidateCode(string sid)
{
string code = RandomStringGenerator.CreateRandomNumeric(5);
var resp = new HttpResponseMessage();
try
{
if (string.IsNullOrEmpty(sid) || sid.Length < 32)
{
resp.StatusCode = HttpStatusCode.BadRequest;
}
else
{
CacheProvider.Set("vcode." + sid, code, TimeSpan.FromMinutes(10));
byte[] buffer = ValidateCodeGenerator.CreateImage(code);
resp.Content = new ByteArrayContent(buffer);
resp.Content.Headers.ContentType = new MediaTypeHeaderValue("image/png");
}
}
catch
{
resp.StatusCode = HttpStatusCode.InternalServerError;
}
return(resp);
}
public ActionResult VerifyCode()
{
string code = RandomStringGenerator.CreateRandomNumeric(5);
byte[] buffer = ValidateCodeGenerator.CreateImage(code);
Session["vcode"] = code;
return(File(buffer, "image/png"));
}