37public HttpHeaderType HeaderType => _descriptor is KnownHeader knownHeader ? knownHeader.HeaderType : HttpHeaderType.Custom; 128Debug.Assert(HeaderType != HttpHeaderType.Custom);

110: base(HttpHeaderType.Content | HttpHeaderType.Custom, HttpHeaderType.None)

57private readonly HttpHeaderType _allowedHeaderTypes; 58private readonly HttpHeaderType _treatAsCustomHeaderTypes; 61: this(HttpHeaderType.All, HttpHeaderType.None) 65internal HttpHeaders(HttpHeaderType allowedHeaderTypes, HttpHeaderType treatAsCustomHeaderTypes) 70_allowedHeaderTypes = allowedHeaderTypes & ~HttpHeaderType.NonTrailing; 71_treatAsCustomHeaderTypes = treatAsCustomHeaderTypes & ~HttpHeaderType.NonTrailing; 1105HttpHeaderType headerType = descriptor.HeaderType;

269: base(HttpHeaderType.General | HttpHeaderType.Request | HttpHeaderType.Custom, HttpHeaderType.Response)

137: base(containsTrailingHeaders ? HttpHeaderType.All ^ HttpHeaderType.Request : HttpHeaderType.General | HttpHeaderType.Response | HttpHeaderType.Custom, 138HttpHeaderType.Request) 167return (knownHeader.HeaderType & HttpHeaderType.NonTrailing) == 0;

12this(name, HttpHeaderType.Custom, parser: null, knownValues: null, http2StaticTableIndex, http3StaticTableIndex) 18public KnownHeader(string name, HttpHeaderType headerType, HttpHeaderParser? parser, string[]? knownValues = null, int? http2StaticTableIndex = null, int? http3StaticTableIndex = null) 42public HttpHeaderType HeaderType { get; }

15public static readonly KnownHeader PseudoStatus = new KnownHeader(":status", HttpHeaderType.Response, parser: null); 16public static readonly KnownHeader Accept = new KnownHeader("Accept", HttpHeaderType.Request, MediaTypeHeaderParser.MultipleValuesParser, null, H2StaticTable.Accept, H3StaticTable.AcceptAny); 17public static readonly KnownHeader AcceptCharset = new KnownHeader("Accept-Charset", HttpHeaderType.Request, GenericHeaderParser.MultipleValueStringWithQualityParser, null, H2StaticTable.AcceptCharset); 18public static readonly KnownHeader AcceptEncoding = new KnownHeader("Accept-Encoding", HttpHeaderType.Request, GenericHeaderParser.MultipleValueStringWithQualityParser, null, H2StaticTable.AcceptEncoding, H3StaticTable.AcceptEncodingGzipDeflateBr); 19public static readonly KnownHeader AcceptLanguage = new KnownHeader("Accept-Language", HttpHeaderType.Request, GenericHeaderParser.MultipleValueStringWithQualityParser, null, H2StaticTable.AcceptLanguage, H3StaticTable.AcceptLanguage); 21public static readonly KnownHeader AcceptRanges = new KnownHeader("Accept-Ranges", HttpHeaderType.Response, GenericHeaderParser.TokenListParser, null, H2StaticTable.AcceptRanges, H3StaticTable.AcceptRangesBytes); 22public static readonly KnownHeader AccessControlAllowCredentials = new KnownHeader("Access-Control-Allow-Credentials", HttpHeaderType.Response, parser: null, new string[] { "true" }, http3StaticTableIndex: H3StaticTable.AccessControlAllowCredentials); 23public static readonly KnownHeader AccessControlAllowHeaders = new KnownHeader("Access-Control-Allow-Headers", HttpHeaderType.Response, parser: null, new string[] { "*" }, http3StaticTableIndex: H3StaticTable.AccessControlAllowHeadersCacheControl); 24public static readonly KnownHeader AccessControlAllowMethods = new KnownHeader("Access-Control-Allow-Methods", HttpHeaderType.Response, parser: null, new string[] { "*" }, http3StaticTableIndex: H3StaticTable.AccessControlAllowMethodsGet); 25public static readonly KnownHeader AccessControlAllowOrigin = new KnownHeader("Access-Control-Allow-Origin", HttpHeaderType.Response, parser: null, new string[] { "*", "null" }, H2StaticTable.AccessControlAllowOrigin, H3StaticTable.AccessControlAllowOriginAny); 26public static readonly KnownHeader AccessControlExposeHeaders = new KnownHeader("Access-Control-Expose-Headers", HttpHeaderType.Response, parser: null, new string[] { "*" }, H3StaticTable.AccessControlExposeHeadersContentLength); 28public static readonly KnownHeader Age = new KnownHeader("Age", HttpHeaderType.Response | HttpHeaderType.NonTrailing, TimeSpanHeaderParser.Parser, null, H2StaticTable.Age, H3StaticTable.Age0); 29public static readonly KnownHeader Allow = new KnownHeader("Allow", HttpHeaderType.Content, GenericHeaderParser.TokenListParser, null, H2StaticTable.Allow); 30public static readonly KnownHeader AltSvc = new KnownHeader("Alt-Svc", HttpHeaderType.Response, GetAltSvcHeaderParser(), http3StaticTableIndex: H3StaticTable.AltSvcClear); 31public static readonly KnownHeader AltUsed = new KnownHeader("Alt-Used", HttpHeaderType.Request, parser: null); 32public static readonly KnownHeader Authorization = new KnownHeader("Authorization", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.SingleValueAuthenticationParser, null, H2StaticTable.Authorization, H3StaticTable.Authorization); 33public static readonly KnownHeader CacheControl = new KnownHeader("Cache-Control", HttpHeaderType.General | HttpHeaderType.NonTrailing, CacheControlHeaderParser.Parser, new string[] { "must-revalidate", "no-cache", "no-store", "no-transform", "private", "proxy-revalidate", "public" }, H2StaticTable.CacheControl, H3StaticTable.CacheControlMaxAge0); 34public static readonly KnownHeader Connection = new KnownHeader("Connection", HttpHeaderType.General, GenericHeaderParser.TokenListParser, new string[] { "close" }); 35public static readonly KnownHeader ContentDisposition = new KnownHeader("Content-Disposition", HttpHeaderType.Content | HttpHeaderType.NonTrailing, GenericHeaderParser.ContentDispositionParser, new string[] { "inline", "attachment" }, H2StaticTable.ContentDisposition, H3StaticTable.ContentDisposition); 36public static readonly KnownHeader ContentEncoding = new KnownHeader("Content-Encoding", HttpHeaderType.Content | HttpHeaderType.NonTrailing, GenericHeaderParser.TokenListParser, new string[] { "gzip", "deflate", "br", "compress", "identity" }, H2StaticTable.ContentEncoding, H3StaticTable.ContentEncodingBr); 37public static readonly KnownHeader ContentLanguage = new KnownHeader("Content-Language", HttpHeaderType.Content, GenericHeaderParser.TokenListParser, null, H2StaticTable.ContentLanguage); 38public static readonly KnownHeader ContentLength = new KnownHeader("Content-Length", HttpHeaderType.Content | HttpHeaderType.NonTrailing, Int64NumberHeaderParser.Parser, null, H2StaticTable.ContentLength, H3StaticTable.ContentLength0); 39public static readonly KnownHeader ContentLocation = new KnownHeader("Content-Location", HttpHeaderType.Content | HttpHeaderType.NonTrailing, UriHeaderParser.RelativeOrAbsoluteUriParser, null, H2StaticTable.ContentLocation); 40public static readonly KnownHeader ContentMD5 = new KnownHeader("Content-MD5", HttpHeaderType.Content, ByteArrayHeaderParser.Parser); 41public static readonly KnownHeader ContentRange = new KnownHeader("Content-Range", HttpHeaderType.Content | HttpHeaderType.NonTrailing, GenericHeaderParser.ContentRangeParser, null, H2StaticTable.ContentRange); 43public static readonly KnownHeader ContentType = new KnownHeader("Content-Type", HttpHeaderType.Content | HttpHeaderType.NonTrailing, MediaTypeHeaderParser.SingleValueParser, null, H2StaticTable.ContentType, H3StaticTable.ContentTypeApplicationDnsMessage); 44public static readonly KnownHeader Cookie = new KnownHeader("Cookie", HttpHeaderType.Custom, CookieHeaderParser.Parser, null, H2StaticTable.Cookie, H3StaticTable.Cookie); 46public static readonly KnownHeader Date = new KnownHeader("Date", HttpHeaderType.General | HttpHeaderType.NonTrailing, DateHeaderParser.Parser, null, H2StaticTable.Date, H3StaticTable.Date); 47public static readonly KnownHeader ETag = new KnownHeader("ETag", HttpHeaderType.Response, GenericHeaderParser.SingleValueEntityTagParser, null, H2StaticTable.ETag, H3StaticTable.ETag); 48public static readonly KnownHeader Expect = new KnownHeader("Expect", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueNameValueWithParametersParser, new string[] { "100-continue" }, H2StaticTable.Expect); 50public static readonly KnownHeader Expires = new KnownHeader("Expires", HttpHeaderType.Content | HttpHeaderType.NonTrailing, DateHeaderParser.Parser, null, H2StaticTable.Expires); 51public static readonly KnownHeader From = new KnownHeader("From", HttpHeaderType.Request, GenericHeaderParser.SingleValueParserWithoutValidation, null, H2StaticTable.From); 52public static readonly KnownHeader GrpcEncoding = new KnownHeader("grpc-encoding", HttpHeaderType.Custom, null, new string[] { "identity", "gzip", "deflate" }); 54public static readonly KnownHeader GrpcStatus = new KnownHeader("grpc-status", HttpHeaderType.Custom, null, new string[] { "0" }); 55public static readonly KnownHeader Host = new KnownHeader("Host", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.HostParser, null, H2StaticTable.Host); 56public static readonly KnownHeader IfMatch = new KnownHeader("If-Match", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueEntityTagParser, null, H2StaticTable.IfMatch); 57public static readonly KnownHeader IfModifiedSince = new KnownHeader("If-Modified-Since", HttpHeaderType.Request | HttpHeaderType.NonTrailing, DateHeaderParser.Parser, null, H2StaticTable.IfModifiedSince, H3StaticTable.IfModifiedSince); 58public static readonly KnownHeader IfNoneMatch = new KnownHeader("If-None-Match", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueEntityTagParser, null, H2StaticTable.IfNoneMatch, H3StaticTable.IfNoneMatch); 59public static readonly KnownHeader IfRange = new KnownHeader("If-Range", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.RangeConditionParser, null, H2StaticTable.IfRange, H3StaticTable.IfRange); 60public static readonly KnownHeader IfUnmodifiedSince = new KnownHeader("If-Unmodified-Since", HttpHeaderType.Request | HttpHeaderType.NonTrailing, DateHeaderParser.Parser, null, H2StaticTable.IfUnmodifiedSince); 62public static readonly KnownHeader LastModified = new KnownHeader("Last-Modified", HttpHeaderType.Content, DateHeaderParser.Parser, null, H2StaticTable.LastModified, H3StaticTable.LastModified); 64public static readonly KnownHeader Location = new KnownHeader("Location", HttpHeaderType.Response | HttpHeaderType.NonTrailing, UriHeaderParser.RelativeOrAbsoluteUriParser, null, H2StaticTable.Location, H3StaticTable.Location); 65public static readonly KnownHeader MaxForwards = new KnownHeader("Max-Forwards", HttpHeaderType.Request | HttpHeaderType.NonTrailing, Int32NumberHeaderParser.Parser, null, H2StaticTable.MaxForwards); 68public static readonly KnownHeader Pragma = new KnownHeader("Pragma", HttpHeaderType.General | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueNameValueParser, new string[] { "no-cache" }); 69public static readonly KnownHeader ProxyAuthenticate = new KnownHeader("Proxy-Authenticate", HttpHeaderType.Response | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueAuthenticationParser, null, H2StaticTable.ProxyAuthenticate); 70public static readonly KnownHeader ProxyAuthorization = new KnownHeader("Proxy-Authorization", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.SingleValueAuthenticationParser, null, H2StaticTable.ProxyAuthorization); 74public static readonly KnownHeader Range = new KnownHeader("Range", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.RangeParser, null, H2StaticTable.Range, H3StaticTable.RangeBytes0ToAll); 75public static readonly KnownHeader Referer = new KnownHeader("Referer", HttpHeaderType.Request, UriHeaderParser.RelativeOrAbsoluteUriParser, null, H2StaticTable.Referer, H3StaticTable.Referer); // NB: The spelling-mistake "Referer" for "Referrer" must be matched. 76public static readonly KnownHeader ReferrerPolicy = new KnownHeader("Referrer-Policy", HttpHeaderType.Custom, null, new string[] { "strict-origin-when-cross-origin", "origin-when-cross-origin", "strict-origin", "origin", "same-origin", "no-referrer-when-downgrade", "no-referrer", "unsafe-url" }); 78public static readonly KnownHeader RetryAfter = new KnownHeader("Retry-After", HttpHeaderType.Response | HttpHeaderType.NonTrailing, GenericHeaderParser.RetryConditionParser, null, H2StaticTable.RetryAfter); 84public static readonly KnownHeader Server = new KnownHeader("Server", HttpHeaderType.Response, ProductInfoHeaderParser.MultipleValueParser, null, H2StaticTable.Server, H3StaticTable.Server); 86public static readonly KnownHeader SetCookie = new KnownHeader("Set-Cookie", HttpHeaderType.Custom | HttpHeaderType.NonTrailing, null, null, H2StaticTable.SetCookie, H3StaticTable.SetCookie); 87public static readonly KnownHeader SetCookie2 = new KnownHeader("Set-Cookie2", HttpHeaderType.Custom | HttpHeaderType.NonTrailing, null, null); 89public static readonly KnownHeader TE = new KnownHeader("TE", HttpHeaderType.Request | HttpHeaderType.NonTrailing, TransferCodingHeaderParser.MultipleValueWithQualityParser, new string[] { "trailers", "compress", "deflate", "gzip" }); 91public static readonly KnownHeader Trailer = new KnownHeader("Trailer", HttpHeaderType.General | HttpHeaderType.NonTrailing, GenericHeaderParser.TokenListParser); 92public static readonly KnownHeader TransferEncoding = new KnownHeader("Transfer-Encoding", HttpHeaderType.General | HttpHeaderType.NonTrailing, TransferCodingHeaderParser.MultipleValueParser, new string[] { "chunked", "compress", "deflate", "gzip", "identity" }, H2StaticTable.TransferEncoding); 93public static readonly KnownHeader Upgrade = new KnownHeader("Upgrade", HttpHeaderType.General, GenericHeaderParser.MultipleValueProductParser); 94public static readonly KnownHeader UpgradeInsecureRequests = new KnownHeader("Upgrade-Insecure-Requests", HttpHeaderType.Custom, null, new string[] { "1" }, http3StaticTableIndex: H3StaticTable.UpgradeInsecureRequests1); 95public static readonly KnownHeader UserAgent = new KnownHeader("User-Agent", HttpHeaderType.Request, ProductInfoHeaderParser.MultipleValueParser, null, H2StaticTable.UserAgent, H3StaticTable.UserAgent); 96public static readonly KnownHeader Vary = new KnownHeader("Vary", HttpHeaderType.Response | HttpHeaderType.NonTrailing, GenericHeaderParser.TokenListParser, new string[] { "*" }, H2StaticTable.Vary, H3StaticTable.VaryAcceptEncoding); 97public static readonly KnownHeader Via = new KnownHeader("Via", HttpHeaderType.General, GenericHeaderParser.MultipleValueViaParser, null, H2StaticTable.Via); 98public static readonly KnownHeader WWWAuthenticate = new KnownHeader("WWW-Authenticate", HttpHeaderType.Response | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueAuthenticationParser, null, H2StaticTable.WwwAuthenticate); 99public static readonly KnownHeader Warning = new KnownHeader("Warning", HttpHeaderType.General | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueWarningParser); 103public static readonly KnownHeader XContentTypeOptions = new KnownHeader("X-Content-Type-Options", HttpHeaderType.Custom, null, new string[] { "nosniff" }, http3StaticTableIndex: H3StaticTable.XContentTypeOptionsNoSniff); 104public static readonly KnownHeader XFrameOptions = new KnownHeader("X-Frame-Options", HttpHeaderType.Custom, null, new string[] { "DENY", "SAMEORIGIN" }, http3StaticTableIndex: H3StaticTable.XFrameOptionsDeny); 109public static readonly KnownHeader XXssProtection = new KnownHeader("X-XSS-Protection", HttpHeaderType.Custom, null, new string[] { "0", "1", "1; mode=block" });

712_trailers.TryAddWithoutValidation((descriptor.HeaderType & HttpHeaderType.Request) == HttpHeaderType.Request ? descriptor.AsCustomHeader() : descriptor, headerValue); 714else if ((descriptor.HeaderType & HttpHeaderType.Content) == HttpHeaderType.Content) 724_response.Headers.TryAddWithoutValidation((descriptor.HeaderType & HttpHeaderType.Request) == HttpHeaderType.Request ? descriptor.AsCustomHeader() : descriptor, headerValue);

1090case HeaderState.ResponseHeaders when descriptor.HeaderType.HasFlag(HttpHeaderType.Content): 1094_response!.Headers.TryAddWithoutValidation(descriptor.HeaderType.HasFlag(HttpHeaderType.Request) ? descriptor.AsCustomHeader() : descriptor, headerValue); 1097_trailingHeaders!.Add((descriptor.HeaderType.HasFlag(HttpHeaderType.Request) ? descriptor.AsCustomHeader() : descriptor, headerValue));

1278HttpHeaderType headerType = descriptor.HeaderType; 1281if ((headerType & HttpHeaderType.Request) != 0) 1291if ((headerType & HttpHeaderType.NonTrailing) != 0) 1301else if ((headerType & HttpHeaderType.Content) != 0)