public IActionResult GetImageCaptcha([FromQuery] ImgCaptchaDto imgCaptchaDto)
{
var result = _captchaService.GetImageCaptcha(imgCaptchaDto);
var stream = new MemoryStream(result.CaptchaByteData);
return(new FileStreamResult(stream, "image/png"));
}
/// <summary>
/// 获取图片验证码
/// </summary>
/// <param name="imgCaptchaDto">图形验证码请求信息</param>
/// <returns></returns>
public CaptchaResult GetImageCaptcha(ImgCaptchaDto imgCaptchaDto)
{
var captchaCode = ImageCaptchaHelper.GenerateCaptchaCode();
var result = ImageCaptchaHelper.GenerateCaptcha(100, 36, captchaCode);
_cache.Set($"ImgCaptcha{imgCaptchaDto.ImgCaptchaType}{imgCaptchaDto.Mobile}", result.CaptchaCode);
return(result);
}
public IActionResult ValidateImageCaptcha(ImgCaptchaDto imgCaptchaDto)
{
bool isCaptchaValid = _captchaService.ValidateImageCaptcha(imgCaptchaDto);
if (isCaptchaValid)
{
return(Ok("图形验证码验证成功"));
}
else
{
return(StatusCode(StatusCodes.Status403Forbidden, "验证失败，请输入正确手机号及获取到的验证码"));
}
}
/// <summary>
/// 验证图片验证码
/// </summary>
/// <param name="imgCaptchaDto">图形验证码信息</param>
/// <returns></returns>
public bool ValidateImageCaptcha(ImgCaptchaDto imgCaptchaDto)
{
var cachedImageCaptcha = _cache.Get <string>($"ImgCaptcha{imgCaptchaDto.ImgCaptchaType}{imgCaptchaDto.Mobile}");
if (string.Equals(imgCaptchaDto.ImgCaptcha, cachedImageCaptcha, StringComparison.OrdinalIgnoreCase))
{
return(true);
}
else
{
return(false);
}
}
