47 lines
1.6 KiB
C#
47 lines
1.6 KiB
C#
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using System.Security.Claims;
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using Microsoft.AspNetCore.Http;
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using Microsoft.IdentityModel.JsonWebTokens;
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using mws.backend.dotnet.application.Common;
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namespace mws.backend.dotnet.api.Authentication;
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public class HttpCurrentUser(IHttpContextAccessor accessor) : ICurrentUser
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{
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public Guid? UserId
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{
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get
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{
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var value = accessor.HttpContext?.User.FindFirstValue(JwtRegisteredClaimNames.Sub)
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?? accessor.HttpContext?.User.FindFirstValue(ClaimTypes.NameIdentifier)
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?? accessor.HttpContext?.User.FindFirstValue("sub");
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return value is not null && Guid.TryParse(value, out var id) ? id : null;
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}
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}
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public string? Username =>
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accessor.HttpContext?.User.FindFirstValue(ClaimTypes.Name)
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?? accessor.HttpContext?.User.FindFirstValue("name");
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public string? IpAddress
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{
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get
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{
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var context = accessor.HttpContext;
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if (context is null) return null;
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var forwarded = context.Request.Headers["X-Forwarded-For"].FirstOrDefault();
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if (!string.IsNullOrWhiteSpace(forwarded))
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{
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var first = forwarded.Split(',')[0].Trim();
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if (first.Length > 0) return Truncate(first, 45);
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}
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return Truncate(context.Connection.RemoteIpAddress?.ToString(), 45);
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}
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}
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public string? UserAgent =>
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Truncate(accessor.HttpContext?.Request.Headers.UserAgent.ToString(), 512);
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private static string? Truncate(string? value, int max) =>
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string.IsNullOrEmpty(value) ? value : (value.Length <= max ? value : value[..max]);
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}
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