33 lines
946 B
C#
33 lines
946 B
C#
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namespace Uwaa.HTTP.Routing;
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/// <summary>
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/// Handles CORS preflight requests.
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/// </summary>
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public class CORS : RouterBase
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{
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public override HttpMethod Method => HttpMethod.OPTIONS;
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public override int Arguments => 0;
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protected override Task<HttpResponse?> GetResponseInner(HttpRequest req, HttpClientInfo info, ArraySegment<string> path)
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{
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return Task.FromResult<HttpResponse?>(new HttpResponse(200, "OK", PreflightResponseFields.Singleton));
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}
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}
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class PreflightResponseFields : HttpFields
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{
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public static readonly PreflightResponseFields Singleton = new PreflightResponseFields();
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PreflightResponseFields()
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{
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}
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public override void EmitAll(FieldCallback callback)
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{
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base.EmitAll(callback);
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callback("Access-Control-Allow-Origin", "*");
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callback("Methods", "GET,HEAD,POST,PUT,DELETE,CONNECT,OPTIONS,TRACE,PATCH");
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callback("Vary", "Origin");
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}
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}
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