private TagBuilder getCaptchaImageTagBuilder(string encryptedText)
{
ViewContext.CheckArgumentNull(nameof(ViewContext));
var values = new CaptchaImageParams
{
Text = encryptedText,
RndDate = DateTime.Now.Ticks.ToString(),
ForeColor = ForeColor,
BackColor = BackColor,
FontSize = FontSize,
FontName = FontName
};
var serializedValues = _serializationProvider.Serialize(values);
var encryptSerializedValues = _captchaProtectionProvider.Encrypt(serializedValues);
var actionUrl = _urlHelper.Action(
action: nameof(DNTCaptchaImageController.Show),
controller: nameof(DNTCaptchaImageController).Replace("Controller", string.Empty),
values: new { data = encryptSerializedValues, area = "" },
protocol: ViewContext.HttpContext.Request.Scheme);
var captchaImage = new TagBuilder("img");
var dntCaptchaImg = "dntCaptchaImg";
captchaImage.TagRenderMode = TagRenderMode.SelfClosing;
captchaImage.Attributes.Add("id", dntCaptchaImg);
captchaImage.Attributes.Add("name", dntCaptchaImg);
captchaImage.Attributes.Add("alt", "captcha");
captchaImage.Attributes.Add("src", actionUrl);
captchaImage.Attributes.Add("style", "margin-bottom: 4px;");
return(captchaImage);
}
private string getCaptchaImageUrl(DNTCaptchaTagHelperHtmlAttributes captchaAttributes, string encryptedText)
{
var values = new CaptchaImageParams
{
Text = encryptedText,
RndDate = DateTime.Now.Ticks.ToString(),
ForeColor = captchaAttributes.ForeColor,
BackColor = captchaAttributes.BackColor,
FontSize = captchaAttributes.FontSize,
FontName = captchaAttributes.FontName
};
var encryptSerializedValues = _captchaProtectionProvider.Encrypt(_serializationProvider.Serialize(values));
var actionUrl = captchaAttributes.UseRelativeUrls ?
_urlHelper.Action(action: nameof(DNTCaptchaImageController.Show),
controller: nameof(DNTCaptchaImageController).Replace("Controller", string.Empty),
values: new { data = encryptSerializedValues, area = "" }) :
_urlHelper.Action(action: nameof(DNTCaptchaImageController.Show),
controller: nameof(DNTCaptchaImageController).Replace("Controller", string.Empty),
values: new { data = encryptSerializedValues, area = "" },
protocol: _httpContextAccessor.HttpContext.Request.Scheme);
if (string.IsNullOrWhiteSpace(actionUrl))
{
throw new NullReferenceException("It's not possible to determine the URL of the `DNTCaptchaImageController.Show` method. Please register the `services.AddControllers()` and `endpoints.MapControllerRoute(...)`.");
}
return(actionUrl);
}
private TagBuilder getCaptchaImageTagBuilder(ViewContext viewContext, string encryptedText)
{
if (_urlHelper == null)
{
throw new InvalidOperationException("Failed to find the IUrlHelper of ViewContext.HttpContext.");
}
var values = new CaptchaImageParams
{
Text = encryptedText,
RndDate = DateTime.Now.Ticks.ToString(CultureInfo.InvariantCulture),
ForeColor = ForeColor,
BackColor = BackColor,
FontSize = FontSize,
FontName = FontName
};
var serializedValues = _serializationProvider.Serialize(values);
var encryptSerializedValues = _captchaProtectionProvider.Encrypt(serializedValues);
var actionUrl = UseRelativeUrls ?
_urlHelper.Action(
action: nameof(DNTCaptchaImageController.Show),
controller: nameof(DNTCaptchaImageController).Replace("Controller", string.Empty, StringComparison.Ordinal),
values: new { data = encryptSerializedValues, area = "" }) :
_urlHelper.Action(
action: nameof(DNTCaptchaImageController.Show),
controller: nameof(DNTCaptchaImageController).Replace("Controller", string.Empty, StringComparison.Ordinal),
values: new { data = encryptSerializedValues, area = "" },
protocol: viewContext.HttpContext.Request.Scheme);
if (string.IsNullOrWhiteSpace(actionUrl))
{
throw new InvalidOperationException("It's not possible to determine the URL of the `DNTCaptchaImageController.Show` method. Please register the `services.AddControllers()` and `endpoints.MapControllerRoute(...)`.");
}
var captchaImage = new TagBuilder("img");
var dntCaptchaImg = $"{_captchaOptions.CaptchaClass}Img";
captchaImage.TagRenderMode = TagRenderMode.SelfClosing;
captchaImage.Attributes.Add("id", dntCaptchaImg);
captchaImage.Attributes.Add("name", dntCaptchaImg);
captchaImage.Attributes.Add("alt", "captcha");
captchaImage.Attributes.Add("src", actionUrl);
captchaImage.Attributes.Add("style", "margin-bottom: 4px;");
return(captchaImage);
}
private TagBuilder getCaptchaImageTagBuilder(string encryptedText)
{
ViewContext.CheckArgumentNull(nameof(ViewContext));
var values = new CaptchaImageParams
{
Text = encryptedText,
RndDate = DateTime.Now.Ticks.ToString(),
ForeColor = ForeColor,
BackColor = BackColor,
FontSize = FontSize,
FontName = FontName,
UseNoise = UseNoise
};
var serializedValues = _serializationProvider.Serialize(values);
var encryptSerializedValues = _captchaProtectionProvider.Encrypt(serializedValues);
var actionUrl = UseRelativeUrls ?
_urlHelper.Action(
action: nameof(DNTCaptchaImageController.Show),
controller: nameof(DNTCaptchaImageController).Replace("Controller", string.Empty),
values: new { data = encryptSerializedValues, area = "" }) :
_urlHelper.Action(
action: nameof(DNTCaptchaImageController.Show),
controller: nameof(DNTCaptchaImageController).Replace("Controller", string.Empty),
values: new { data = encryptSerializedValues, area = "" },
protocol: ViewContext.HttpContext.Request.Scheme);
if (string.IsNullOrWhiteSpace(actionUrl))
{
throw new NullReferenceException("It's not possible to determine the URL of the `DNTCaptchaImageController.Show` method. Please register the `services.AddControllers()` and `endpoints.MapControllerRoute(...)`.");
}
var captchaImage = new TagBuilder("img");
var dntCaptchaImg = "dntCaptchaImg";
captchaImage.TagRenderMode = TagRenderMode.SelfClosing;
captchaImage.Attributes.Add("id", dntCaptchaImg);
captchaImage.Attributes.Add("name", dntCaptchaImg);
captchaImage.Attributes.Add("alt", "captcha");
captchaImage.Attributes.Add("src", actionUrl);
captchaImage.Attributes.Add("style", "margin-bottom: 4px;");
return(captchaImage);
}
private string getCaptchaImageUrl(DNTCaptchaTagHelperHtmlAttributes captchaAttributes, string encryptedText)
{
var values = new CaptchaImageParams
{
Text = encryptedText,
RndDate = DateTime.Now.Ticks.ToString(),
ForeColor = captchaAttributes.ForeColor,
BackColor = captchaAttributes.BackColor,
FontSize = captchaAttributes.FontSize,
FontName = captchaAttributes.FontName
};
var encryptSerializedValues = _captchaProtectionProvider.Encrypt(_serializationProvider.Serialize(values));
var actionUrl = Url.Action(action: nameof(DNTCaptchaImageController.Show),
controller: nameof(DNTCaptchaImageController).Replace("Controller", string.Empty),
values: new { data = encryptSerializedValues, area = "" },
protocol: HttpContext.Request.Scheme);
return(actionUrl);
}
