sharp-chat/Hamakaze/Headers/HttpKeepAliveHeader.cs

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2022-08-30 15:00:58 +00:00
using System;
using System.Collections.Generic;
namespace Hamakaze.Headers {
public class HttpKeepAliveHeader : HttpHeader {
public const string NAME = @"Keep-Alive";
public override string Name => NAME;
public override object Value {
get {
List<string> parts = new();
if(MaxIdle != TimeSpan.MaxValue)
parts.Add(string.Format(@"timeout={0}", MaxIdle.TotalSeconds));
if(MaxRequests >= 0)
parts.Add(string.Format(@"max={0}", MaxRequests));
return string.Join(@", ", parts);
}
}
public TimeSpan MaxIdle { get; } = TimeSpan.MaxValue;
public int MaxRequests { get; } = -1;
public HttpKeepAliveHeader(string value) {
IEnumerable<string> kvps = (value ?? throw new ArgumentNullException(nameof(value))).Split(',', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
foreach(string kvp in kvps) {
string[] parts = kvp.Split('=', 2, StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
if(parts[0] == @"timeout" && int.TryParse(parts[1], out int timeout))
MaxIdle = TimeSpan.FromSeconds(timeout);
else if(parts[0] == @"max" && int.TryParse(parts[1], out int max))
MaxRequests = max;
}
}
}
}