70 lines
2.4 KiB
C#
70 lines
2.4 KiB
C#
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using System;
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using System.Globalization;
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using System.Text;
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namespace Hamakaze {
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public readonly struct HttpEncoding : IComparable<HttpEncoding?>, IEquatable<HttpEncoding?> {
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public const string DEFLATE = @"deflate";
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public const string GZIP = @"gzip";
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public const string XGZIP = @"x-gzip";
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public const string BROTLI = @"br";
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public const string IDENTITY = @"identity";
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public const string CHUNKED = @"chunked";
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public const string ANY = @"*";
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public static readonly HttpEncoding Any = new(ANY);
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public static readonly HttpEncoding None = new(ANY, 0f);
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public static readonly HttpEncoding Deflate = new(DEFLATE);
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public static readonly HttpEncoding GZip = new(GZIP);
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public static readonly HttpEncoding Brotli = new(BROTLI);
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public static readonly HttpEncoding Identity = new(IDENTITY);
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public string Name { get; }
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public float Quality { get; }
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public HttpEncoding(string name, float quality = 1f) {
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Name = name ?? throw new ArgumentNullException(nameof(name));
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Quality = quality;
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}
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public HttpEncoding WithQuality(float quality) {
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return new HttpEncoding(Name, quality);
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}
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public static HttpEncoding Parse(string encoding) {
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string[] parts = encoding.Split(';', StringSplitOptions.TrimEntries);
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float quality = 1f;
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encoding = parts[0];
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for(int i = 1; i < parts.Length; ++i)
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if(parts[i].StartsWith(@"q=")) {
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if(!float.TryParse(parts[i], out quality))
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quality = 1f;
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break;
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}
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return new HttpEncoding(encoding, quality);
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}
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public override string ToString() {
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StringBuilder sb = new();
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sb.Append(Name);
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if(Quality is >= 0f and < 1f)
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sb.AppendFormat(CultureInfo.InvariantCulture, @";q={0:0.0}", Quality);
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return sb.ToString();
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}
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public int CompareTo(HttpEncoding? other) {
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if(!other.HasValue || other.Value.Quality < Quality)
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return -1;
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if(other.Value.Quality > Quality)
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return 1;
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return 0;
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}
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public bool Equals(HttpEncoding? other) {
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return other.HasValue && Name.Equals(other.Value.Name) && Quality.Equals(other.Value.Quality);
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}
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}
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}
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