73 lines
2.4 KiB
C#
73 lines
2.4 KiB
C#
using Fido2NetLib;
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using Fido2NetLib.Objects;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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namespace CloudBuilder.Security.Service
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{
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/// <summary>
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/// 登录阶段，下发给前端的断言选项模型，对应 CredentialGetOptions
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/// </summary>
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public sealed class AssertionOptionsModel
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{
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[JsonPropertyName("challenge")]
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public string Challenge { get; init; }
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/// <summary>
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/// 依赖方ID，域名，例如 localhost / example.com
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/// </summary>
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[JsonPropertyName("rpId")]
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public string RpId { get; init; }
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/// <summary>
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/// 允许使用的凭证列表，告诉浏览器该用户有哪些已绑定凭证
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/// </summary>
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[JsonPropertyName("allowCredentials")]
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public PublicKeyCredentialDescriptor[] AllowCredentials { get; init; }
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/// <summary>
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/// 用户验证策略：preferred｜required｜discouraged
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/// </summary>
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[JsonPropertyName("userVerification")]
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public UserVerificationRequirement UserVerification { get; init; }
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/// <summary>
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/// 超时毫秒
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/// </summary>
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[JsonPropertyName("timeout")]
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public ulong Timeout { get; init; }
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// 可选扩展字段，如果业务用到可以加上
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//[JsonPropertyName("extensions")]
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//public AuthenticationExtensionsClientInputs? Extensions { get; init; }
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/// <summary>
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/// 和Fido2NetLib原生风格对齐，从JSON字符串反序列化对象
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/// </summary>
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/// <param name="json">后端输出给前端的原始json</param>
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/// <returns></returns>
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public static AssertionOptionsModel FromJson(string json)
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{
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var opt = new JsonSerializerOptions
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{
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Converters = { new Base64UrlConverter() },
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PropertyNameCaseInsensitive = false
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};
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return JsonSerializer.Deserialize<AssertionOptionsModel>(json, opt)!;
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}
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/// <summary>
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/// 序列化为给前端消费的JSON（challenge/id自动Base64Url编码）
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/// </summary>
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public string ToJson()
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{
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var opt = new JsonSerializerOptions
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{
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Converters = { new Base64UrlConverter() },
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WriteIndented = false
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};
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return JsonSerializer.Serialize(this, opt);
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}
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}
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} |