56 lines
1.9 KiB
C#
56 lines
1.9 KiB
C#
using FastGithub.Configuration;
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using FastGithub.DomainResolve;
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using System.Net.Http;
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using System.Net.Http.Headers;
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using System.Threading;
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using System.Threading.Tasks;
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namespace FastGithub.Http
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{
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/// <summary>
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/// 表示http客户端
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/// </summary>
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public class HttpClient : HttpMessageInvoker
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{
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/// <summary>
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/// 插入的UserAgent标记
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/// </summary>
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private readonly static ProductInfoHeaderValue userAgent = new(new ProductHeaderValue(nameof(FastGithub), "1.0"));
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/// <summary>
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/// http客户端
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/// </summary>
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/// <param name="domainConfig"></param>
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/// <param name="domainResolver"></param>
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public HttpClient(DomainConfig domainConfig, IDomainResolver domainResolver)
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: this(new HttpClientHandler(domainConfig, domainResolver), disposeHandler: true)
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{
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}
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/// <summary>
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/// http客户端
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/// </summary>
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/// <param name="handler"></param>
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/// <param name="disposeHandler"></param>
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internal HttpClient(HttpClientHandler handler, bool disposeHandler)
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: base(handler, disposeHandler)
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{
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}
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/// <summary>
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/// 发送请求
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/// </summary>
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/// <param name="request"></param>
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/// <param name="cancellationToken"></param>
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/// <returns></returns>
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public override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
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{
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if (request.Headers.UserAgent.Contains(userAgent))
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{
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throw new FastGithubException($"由于{request.RequestUri}实际指向了{nameof(FastGithub)}自身，{nameof(FastGithub)}已中断本次转发");
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}
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request.Headers.UserAgent.Add(userAgent);
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return base.SendAsync(request, cancellationToken);
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}
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}
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} |