58 lines
2.0 KiB
C#
58 lines
2.0 KiB
C#
using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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namespace Best.HTTP.Request.Authentication
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{
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/// <summary>
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/// Stores and manages already received digest infos.
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/// </summary>
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public static class DigestStore
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{
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private static ConcurrentDictionary<string, Digest> Digests = new ConcurrentDictionary<string, Digest>();
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/// <summary>
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/// Array of algorithms that the plugin supports. It's in the order of priority(first has the highest priority).
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/// </summary>
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private static string[] SupportedAlgorithms = new string[] { "digest", "basic" };
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public static Digest Get(Uri uri)
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{
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if (Digests.TryGetValue(uri.Host, out var digest))
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if (!digest.IsUriProtected(uri))
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return null;
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return digest;
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}
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/// <summary>
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/// It will retrieve or create a new Digest for the given Uri.
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/// </summary>
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/// <param name="uri"></param>
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/// <returns></returns>
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public static Digest GetOrCreate(Uri uri) => Digests.GetOrAdd(uri.Host, new Digest(uri));
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public static void Remove(Uri uri) => Digests.TryRemove(uri.Host, out var _);
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public static void Clear() => Digests.Clear();
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public static string FindBest(List<string> authHeaders)
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{
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if (authHeaders == null || authHeaders.Count == 0)
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return string.Empty;
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List<string> headers = new List<string>(authHeaders.Count);
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for (int i = 0; i < authHeaders.Count; ++i)
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headers.Add(authHeaders[i].ToLowerInvariant());
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for (int i = 0; i < SupportedAlgorithms.Length; ++i)
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{
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int idx = headers.FindIndex((header) => header.StartsWith(SupportedAlgorithms[i]));
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if (idx != -1)
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return authHeaders[idx];
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}
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return string.Empty;
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}
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}
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}
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