45 lines
1.9 KiB
C#
45 lines
1.9 KiB
C#
using System.ComponentModel.DataAnnotations;
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namespace Store.Users.Contracts.Dtos;
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/// <summary>用户提交的充值备注。</summary>
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public sealed class UserTopUpMessageRequest
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{
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/// <summary>目标账户；省略时为本人，指定时检查管理权限。</summary>
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[StringLength(20)]
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public string? UserName { get; set; }
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[Required(ErrorMessage = "充值备注不能为空"), StringLength(1000)] public string Message { get; set; } = "";
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}
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public sealed class UserTopUpResultRequest
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{
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[Range(1, long.MaxValue, ErrorMessage = "ID必须大于0")]
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public long Id { get; set; }
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[Required(ErrorMessage = "处理结果不能为空"), StringLength(1000)] public string Result { get; set; } = "";
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}
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/// <summary>充值二维码；非空、长度与 Base64 格式由 DTO 检查。</summary>
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public sealed class UserTopUpQrcodeRequest : IValidatableObject
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{
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[Required(ErrorMessage = "代理编码不能为空"), StringLength(50)] public string AgentCode { get; set; } = "";
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[Required(ErrorMessage = "二维码不能为空"), StringLength(2097152)] public string QrcodeBase64 { get; set; } = "";
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public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
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{
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var content = QrcodeBase64;
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if (content.StartsWith("data:image/", StringComparison.OrdinalIgnoreCase))
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{
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int comma = content.IndexOf(',');
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if (comma < 0 || !content[..comma].EndsWith(";base64", StringComparison.OrdinalIgnoreCase))
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{
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yield return new ValidationResult("二维码格式错误", [nameof(QrcodeBase64)]);
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yield break;
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}
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content = content[(comma + 1)..];
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}
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bool valid;
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try { valid = Convert.FromBase64String(content).Length > 0; }
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catch (FormatException) { valid = false; }
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if (!valid) yield return new ValidationResult("二维码必须为有效的Base64数据", [nameof(QrcodeBase64)]);
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}
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}
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