42 lines
1.5 KiB
C#
42 lines
1.5 KiB
C#
using System.Net;
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using Microsoft.AspNetCore.Http;
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namespace MediaBrowser.Common.Extensions
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{
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/// <summary>
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/// Static class containing extension methods for <see cref="HttpContext"/>.
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/// </summary>
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public static class HttpContextExtensions
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{
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/// <summary>
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/// Checks the origin of the HTTP context.
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/// </summary>
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/// <param name="context">The incoming HTTP context.</param>
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/// <returns><c>true</c> if the request is coming from LAN, <c>false</c> otherwise.</returns>
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public static bool IsLocal(this HttpContext context)
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{
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return (context.Connection.LocalIpAddress is null
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&& context.Connection.RemoteIpAddress is null)
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|| Equals(context.Connection.LocalIpAddress, context.Connection.RemoteIpAddress);
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}
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/// <summary>
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/// Extracts the remote IP address of the caller of the HTTP context.
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/// </summary>
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/// <param name="context">The HTTP context.</param>
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/// <returns>The remote caller IP address.</returns>
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public static IPAddress GetNormalizedRemoteIP(this HttpContext context)
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{
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// Default to the loopback address if no RemoteIpAddress is specified (i.e. during integration tests)
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var ip = context.Connection.RemoteIpAddress ?? IPAddress.Loopback;
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if (ip.IsIPv4MappedToIPv6)
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{
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ip = ip.MapToIPv4();
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}
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return ip;
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}
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}
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}
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