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82 lines
2.6 KiB
82 lines
2.6 KiB
using Lazy.Captcha.Core;
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using Lazy.Captcha.Core.Generator;
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using Lazy.Captcha.Core.Storage;
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using SkiaSharp;
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namespace Admin.NET.Core;
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public static class LazyCaptchaSetup
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{
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/// <summary>
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/// 验证码初始化
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/// </summary>
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/// <param name="services"></param>
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public static void AddLazyCaptcha(this IServiceCollection services)
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{
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services.AddCaptcha(App.Configuration);
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services.AddScoped<ICaptcha, RandomCaptcha>();
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}
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}
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/// <summary>
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/// 随机验证码
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/// </summary>
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public class RandomCaptcha : DefaultCaptcha
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{
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private static readonly Random random = new();
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private static readonly CaptchaType[] captchaTypes = Enum.GetValues<CaptchaType>();
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public RandomCaptcha(IOptionsSnapshot<CaptchaOptions> options, IStorage storage) : base(options, storage)
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{
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}
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/// <summary>
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/// 更新选项
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/// </summary>
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/// <param name="options"></param>
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protected override void ChangeOptions(CaptchaOptions options)
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{
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// 随机验证码类型
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options.CaptchaType = captchaTypes[10]; // captchaTypes[random.Next(0, captchaTypes.Length)];
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// 当是算数运算时，CodeLength是指运算数个数
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if (options.CaptchaType.IsArithmetic())
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{
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options.CodeLength = 2;
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}
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else
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{
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options.CodeLength = 4;
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}
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// 如果包含中文时，使用kaiti字体，否则文字乱码
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if (options.CaptchaType.ContainsChinese())
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{
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options.ImageOption.FontFamily = DefaultFontFamilys.Instance.Kaiti;
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options.ImageOption.FontSize = 24;
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}
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else
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{
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options.ImageOption.FontFamily = DefaultFontFamilys.Instance.Actionj;
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}
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options.IgnoreCase = true; // 忽略大小写
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options.ImageOption.Animation = random.Next(2) == 0; // 动静
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options.ImageOption.InterferenceLineCount = random.Next(1, 5); // 干扰线数量
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options.ImageOption.BubbleCount = random.Next(1, 5); // 气泡数量
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//options.ImageOption.BubbleMinRadius = 5; // 气泡最小半径
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//options.ImageOption.BubbleMaxRadius = 15; // 气泡最大半径
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//options.ImageOption.BubbleThickness = 1; // 气泡边沿厚度
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options.ImageOption.BackgroundColor = SKColors.White; // 背景色
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options.ImageOption.Width = 150; // 验证码宽度
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options.ImageOption.Height = 50; // 验证码高度
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options.ImageOption.FontSize = 36; // 字体大小
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//options.ImageOption.FontFamily = DefaultFontFamilys.Instance.Actionj; // 字体
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}
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}
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