本节创建的类全部在工程的model目录下：
captchadata.cs
captchadata.cs：验证码的数据类实体
namespace slidecaptcha.model
{
public class captchadata
{
///
/// id
///
public string id { get; set; }
///
/// 背景图(含凹槽)
///
public string backgroundimage { get; set; }
///
/// 滑动块图
///
public string sliderimage { get; set; }
public captchadata(string id, string backgroundimage, string sliderimage)
{
id = id;
backgroundimage = backgroundimage;
sliderimage = sliderimage;
}
}
}
id表示验证码的id值，用于校验验证码，backgroundimage 是验证码图片base64，包含了凹槽。凹槽模板在templates目录下。sliderimage 是滑块图片。模板在templates下。
captchavalidatedata.cs
captchavalidatedata.cs：验证码验证数据实体
namespace slidecaptcha.model
{
public class captchavalidatedata
{
///
/// 滑动比例
///
public float percent { get; set; }
///
/// 容错值(校验时用，缺口位置与实际滑动位置匹配容错范围)
///
public float tolerant { get; set; }
public captchavalidatedata(float percent, float tolerant)
{
percent = percent;
tolerant = tolerant;
}
}
}
imagecaptchainfo.cs
imagecaptchainfo.cs：证码图片信息实体
namespace slidecaptcha.model
{
public class imagecaptchainfo
{
///
/// 背景图宽
///
public int backgroundimagewidth { get; set; }
///
/// 背景图高
///
public int backgroundimageheight { get; set; }
///
/// 背景图
///
public string backgroundimagebase64 { get; set; }
///
/// 滑动块图宽
///
public int sliderimagewidth { get; set; }
///
/// 滑动块图高
///
public int sliderimageheight { get; set; }
///
/// 滑动块图
///
public string sliderimagebase64 { get; set; }
}
}
验证码实体类的基类，滑动验证码、旋转验证码、点选验证码、拼接验证码都基于这个类。
resource.cs
resource.cs ：资源实体类
namespace slidecaptcha.model
{
public class resource
{
public resource(){}
///
/// 资源数据
///
public string data { get; set; }
///
/// 资源类型
///
public string type { get; set; }
///
/// 构造函数
///
/// 资源类型
/// 资源数据
public resource(string type,string data)
{
type = type;
data = data;
}
}
}
资源数据，data为要生成验证码图片路径。type为类型，目前仅为本地文件，后期将扩展url模式。
sliderimagecaptchainfo.cs
sliderimagecaptchainfo.cs：滑动验证码实体类
using slidecaptcha.exceptions;
namespace slidecaptcha.model
{
public class sliderimagecaptchainfo : imagecaptchainfo
{
///
/// 凹槽x坐标
///
public int x { get; set; }
///
/// 凹槽y坐标
///
public int y { get; set; }
///
/// 凹槽位置百分比
///
public float percent
{
get
{
if (backgroundimagewidth <= 0) return 0;
return 1.0f * x / backgroundimagewidth;
}
}
public void check()
{
// 校验
if (this.x <= 0) throw new slidecaptchaexception($"sliderimagecaptchainfo数据异常: {nameof(x)}小于等于0");
if (this.y <= 0) throw new slidecaptchaexception($"sliderimagecaptchainfo数据异常: {nameof(y)}小于等于0");
if (this.backgroundimagewidth <= 0) throw new slidecaptchaexception($"sliderimagecaptchainfo数据异常: {nameof(backgroundimagewidth)}小于等于0");
if (this.backgroundimageheight <= 0) throw new slidecaptchaexception($"sliderimagecaptchainfo数据异常: {nameof(backgroundimageheight)}小于等于0");
if (this.sliderimagewidth <= 0) throw new slidecaptchaexception($"sliderimagecaptchainfo数据异常: {nameof(sliderimagewidth)}小于等于0");
if (this.sliderimageheight <= 0) throw new slidecaptchaexception($"sliderimagecaptchainfo数据异常: {nameof(sliderimageheight)}小于等于0");
if (string.isnullorwhitespace(this.backgroundimagebase64)) throw new slidecaptchaexception($"sliderimagecaptchainfo数据异常: {nameof(backgroundimagebase64)}为空");
if (string.isnullorwhitespace(this.sliderimagebase64)) throw new slidecaptchaexception($"sliderimagecaptchainfo数据异常: {nameof(sliderimagebase64)}为空");
}
}
}
slidetrack.cs
·slidetrack.cs：滑动轨迹·
using slidecaptcha.exceptions;
using system;
using system.collections.generic;
namespace slidecaptcha.model
{
///
/// 滑动轨迹
///
public class slidetrack
{
///
/// 背景图片宽度(可能经过缩放，不是原始图片宽高)
///
public int backgroundimagewidth { get; set; }
///
/// 背景图片高度(可能经过缩放，不是原始图片宽高)
///
public int backgroundimageheight { get; set; }
///
/// 滑块图片宽度(可能经过缩放，不是原始图片宽高)
///
public int sliderimagewidth { get; set; }
///
/// 滑块图片高度(可能经过缩放，不是原始图片宽高)
///
public int sliderimageheight { get; set; }
///
/// 滑动开始时间(可能经过缩放，不是原始图片宽高)
///
public datetime starttime { get; set; }
///
/// 滑动结束时间
///
public datetime endtime { get; set; }
///
/// 轨迹
///
public list
templatepair.cs
·templatepair.cs：模板类·
namespace slidecaptcha.model
{
public class templatepair
{
public templatepair() { }
///
/// 滑块资源
///
public resource slider { get; set; }
///
/// 凹槽资源
///
public resource notch { get; set; }
///
/// 模板类型
///
public string type { get; set; }
///
/// 构造函数
///
/// 滑块资源
/// 凹槽资源
/// 末班类型
public templatepair(resource slider, resource notch,string type)
{
slider = slider;
notch = notch;
type = type;
}
///
/// 创建模板
///
/// 滑块资源
/// 凹槽资源
///
track.cs
track.cs ：滑动数据实体类
namespace slidecaptcha.model
{
public class track
{
///
/// x轴
///
public int x { get; set; }
///
/// y轴
///
public int y { get; set; }
///
/// 时间
///
public int t { get; set; }
}
}
代码中slidecaptchaexception是自定义错误类。自定义错误类在extensions文件夹下，这个后面的代码会进行说明。
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