public IActionResult Show(string data)
{
if (string.IsNullOrWhiteSpace(data))
{
return(BadRequest());
}
var decryptedModel = _captchaProtectionProvider.Decrypt(data);
if (decryptedModel == null)
{
return(BadRequest());
}
var model = _serializationProvider.Deserialize <CaptchaImageParams>(decryptedModel);
if (model == null)
{
return(BadRequest());
}
var decryptedText = _captchaProtectionProvider.Decrypt(model.Text);
if (decryptedText == null)
{
return(BadRequest());
}
var image = model.UseNoise ?
_captchaImageProvider.DrawCaptcha(decryptedText, model.ForeColor, model.FontSize, model.FontName) :
_captchaImageProvider.DrawCaptcha(decryptedText, model.ForeColor, model.BackColor, model.FontSize, model.FontName);
return(new FileContentResult(image, "image/png"));
}
public IActionResult Show(string text, string rndDate, string foreColor = "#1B0172",
string backColor = "", float fontSize = 12, string fontName = "Tahoma")
{
if (string.IsNullOrWhiteSpace(text))
{
return(BadRequest());
}
if (isImageHotlinking())
{
return(BadRequest());
}
var decryptedText = _captchaProtectionProvider.Decrypt(text);
if (decryptedText == null)
{
return(BadRequest());
}
byte[] image;
try
{
image = _captchaImageProvider.DrawCaptcha(decryptedText, foreColor, backColor, fontSize, fontName);
}
catch (Exception ex)
{
_logger.LogCritical(1001, ex, "DrawCaptcha error.");
return(BadRequest(ex.Message));
}
return(new FileContentResult(_captchaImageProvider.DrawCaptcha(decryptedText, foreColor, backColor, fontSize, fontName), "image/png"));
}
public IActionResult Show(string data)
{
if (string.IsNullOrWhiteSpace(data))
{
return(BadRequest());
}
var decryptedModel = _captchaProtectionProvider.Decrypt(data);
if (decryptedModel == null)
{
return(BadRequest());
}
var model = _serializationProvider.Deserialize <CaptchaImageParams>(decryptedModel);
if (model == null)
{
return(BadRequest());
}
var decryptedText = _captchaProtectionProvider.Decrypt(model.Text);
if (decryptedText == null)
{
return(BadRequest());
}
byte[] image;
try
{
if (model.UseNoise)
{
image = _captchaImageProvider.DrawCaptcha(decryptedText, model.ForeColor, model.FontSize, model.FontName);
}
else
{
image = _captchaImageProvider.DrawCaptcha(decryptedText, model.ForeColor, model.BackColor, model.FontSize, model.FontName);
}
}
catch (Exception ex)
{
_logger.LogCritical(1001, ex, "DrawCaptcha error.");
return(BadRequest(ex.Message));
}
return(new FileContentResult(image, "image/png"));
}
public IActionResult Show(string data)
{
try
{
if (string.IsNullOrWhiteSpace(data))
{
return(BadRequest());
}
var decryptedModel = _captchaProtectionProvider.Decrypt(data);
if (decryptedModel == null)
{
return(BadRequest());
}
var model = _serializationProvider.Deserialize <CaptchaImageParams>(decryptedModel);
if (model == null)
{
return(BadRequest());
}
var decryptedText = _captchaProtectionProvider.Decrypt(model.Text);
if (decryptedText == null)
{
return(BadRequest());
}
var image = model.UseNoise ?
_captchaImageProvider.DrawCaptcha(decryptedText, model.ForeColor, model.FontSize, model.FontName) :
_captchaImageProvider.DrawCaptcha(decryptedText, model.ForeColor, model.BackColor, model.FontSize, model.FontName);
return(new FileContentResult(image, "image/png"));
}
#pragma warning disable CA1031 // Do not catch general exception types
catch (Exception ex)
#pragma warning restore CA1031 // Do not catch general exception types
{
return(BadRequest(ex));
}
}
public IActionResult Show(string data)
{
try
{
if (string.IsNullOrWhiteSpace(data))
{
return(BadRequest("The data is null or empty."));
}
var decryptedModel = _captchaProtectionProvider.Decrypt(data);
if (decryptedModel == null)
{
return(BadRequest("Couldn't decrypt the data."));
}
var model = _serializationProvider.Deserialize <CaptchaImageParams>(decryptedModel);
if (model == null)
{
return(BadRequest("Couldn't deserialize the model."));
}
var decryptedText = _captchaProtectionProvider.Decrypt(model.Text);
if (decryptedText == null)
{
return(BadRequest("Couldn't decrypt the text."));
}
var image = model.UseNoise ?
_captchaImageProvider.DrawCaptcha(decryptedText, model.ForeColor, model.FontSize, model.FontName) :
_captchaImageProvider.DrawCaptcha(decryptedText, model.ForeColor, model.BackColor, model.FontSize, model.FontName);
return(new FileContentResult(image, "image/png"));
}
catch (Exception ex)
{
_logger.LogError(ex, "Failed to show the captcha image.");
return(BadRequest(ex.ToString()));
}
}
private Task DrawImageAsync(HttpContext httpContext, string text, string rndDate, string foreColor = "#1B0172", string backColor = "", float fontSize = 12, string fontName = "Tahoma")
{
if (string.IsNullOrWhiteSpace(text))
{
httpContext.Response.StatusCode = 400;
return(Task.CompletedTask);
}
var decryptedText = _captchaProtectionProvider.Decrypt(text);
if (decryptedText == null)
{
httpContext.Response.StatusCode = 400;
return(Task.CompletedTask);
}
byte[] image;
try
{
image = _captchaImageProvider.DrawCaptcha(decryptedText, foreColor, backColor, fontSize, fontName);
}
catch (Exception ex)
{
_logger.LogCritical(1001, ex, "DrawCaptcha error.");
httpContext.Response.StatusCode = 400;
return(Task.CompletedTask);
}
FileContentResult result = new FileContentResult(_captchaImageProvider.DrawCaptcha(decryptedText, foreColor, backColor, fontSize, fontName), "image/png");
HttpResponse response = httpContext.Response;
response.ContentType = result.ContentType;
int length = result.FileContents.Length;
response.ContentLength = length;
response.StatusCode = 200;
return(response.Body.WriteAsync(result.FileContents, 0, length));
}
public byte[] GeneratorCaptcha(string name, int captchaLength, bool hasNumber, bool haslower, bool hasUpper, int imageWidth, int imageHeight, float fontSize)
{
var text = _captchaCodeGenerator.OutputText(haslower, hasUpper, hasNumber, captchaLength);
if (_captchaOptions.Enable)
{
_captchaStorageProvider.Add(_httpContextAccessor.HttpContext, name, text);
}
byte[] image = null;
try
{
image = _captchaImageProvider.DrawCaptcha(text, fontSize, imageWidth, imageHeight);
}
catch (Exception ex)
{
throw ex;
}
return(image);
}
public IActionResult Show(string text, string rndDate, string foreColor = "#1B0172",
string backColor = "", float fontSize = 12, string fontName = "Tahoma")
{
if (string.IsNullOrWhiteSpace(text))
{
return(BadRequest());
}
if (isImageHotlinking())
{
return(BadRequest());
}
var decryptedText = _captchaProtectionProvider.Decrypt(text);
if (decryptedText == null)
{
return(BadRequest());
}
return(new FileContentResult(
_captchaImageProvider.DrawCaptcha(decryptedText, foreColor, backColor, fontSize, fontName),
"image/png"));
}
