16public static readonly KnownHeader PseudoStatus = new(":status", HttpHeaderType.Response, parser: null); 17public static readonly KnownHeader Accept = new("Accept", HttpHeaderType.Request, MediaTypeHeaderParser.MultipleValuesParser, null, H2StaticTable.Accept, H3StaticTable.AcceptAny); 18public static readonly KnownHeader AcceptCharset = new("Accept-Charset", HttpHeaderType.Request, GenericHeaderParser.MultipleValueStringWithQualityParser, null, H2StaticTable.AcceptCharset); 19public static readonly KnownHeader AcceptEncoding = new("Accept-Encoding", HttpHeaderType.Request, GenericHeaderParser.MultipleValueStringWithQualityParser, null, H2StaticTable.AcceptEncoding, H3StaticTable.AcceptEncodingGzipDeflateBr); 20public static readonly KnownHeader AcceptLanguage = new("Accept-Language", HttpHeaderType.Request, GenericHeaderParser.MultipleValueStringWithQualityParser, null, H2StaticTable.AcceptLanguage, H3StaticTable.AcceptLanguage); 21public static readonly KnownHeader AcceptPatch = new("Accept-Patch"); 22public static readonly KnownHeader AcceptRanges = new("Accept-Ranges", HttpHeaderType.Response, GenericHeaderParser.TokenListParser, ["bytes", "none"], H2StaticTable.AcceptRanges, H3StaticTable.AcceptRangesBytes); 23public static readonly KnownHeader AccessControlAllowCredentials = new("Access-Control-Allow-Credentials", HttpHeaderType.Response, parser: null, ["true"], http3StaticTableIndex: H3StaticTable.AccessControlAllowCredentials); 24public static readonly KnownHeader AccessControlAllowHeaders = new("Access-Control-Allow-Headers", HttpHeaderType.Response, parser: null, ["*"], http3StaticTableIndex: H3StaticTable.AccessControlAllowHeadersCacheControl); 25public static readonly KnownHeader AccessControlAllowMethods = new("Access-Control-Allow-Methods", HttpHeaderType.Response, parser: null, ["POST", "*"], http3StaticTableIndex: H3StaticTable.AccessControlAllowMethodsGet); 26public static readonly KnownHeader AccessControlAllowOrigin = new("Access-Control-Allow-Origin", HttpHeaderType.Response, parser: null, ["*", "null"], H2StaticTable.AccessControlAllowOrigin, H3StaticTable.AccessControlAllowOriginAny); 27public static readonly KnownHeader AccessControlExposeHeaders = new("Access-Control-Expose-Headers", HttpHeaderType.Response, parser: null, ["*"], H3StaticTable.AccessControlExposeHeadersContentLength); 28public static readonly KnownHeader AccessControlMaxAge = new("Access-Control-Max-Age"); 29public static readonly KnownHeader Age = new("Age", HttpHeaderType.Response | HttpHeaderType.NonTrailing, TimeSpanHeaderParser.Parser, ["0"], H2StaticTable.Age, H3StaticTable.Age0); 30public static readonly KnownHeader Allow = new("Allow", HttpHeaderType.Content, GenericHeaderParser.TokenListParser, null, H2StaticTable.Allow); 31public static readonly KnownHeader AltSvc = new("Alt-Svc", HttpHeaderType.Response, GetAltSvcHeaderParser(), ["h3=\":443\"", "h3=\":443\"; ma=2592000", "clear"], http3StaticTableIndex: H3StaticTable.AltSvcClear); 32public static readonly KnownHeader AltUsed = new("Alt-Used", HttpHeaderType.Request, parser: null); 33public static readonly KnownHeader Authorization = new("Authorization", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.SingleValueAuthenticationParser, null, H2StaticTable.Authorization, H3StaticTable.Authorization); 34public static readonly KnownHeader CacheControl = new("Cache-Control", HttpHeaderType.General | HttpHeaderType.NonTrailing, CacheControlHeaderParser.Parser, ["must-revalidate", "no-cache", "no-store", "no-transform", "private", "proxy-revalidate", "public"], H2StaticTable.CacheControl, H3StaticTable.CacheControlMaxAge0); 35public static readonly KnownHeader Connection = new("Connection", HttpHeaderType.General, GenericHeaderParser.TokenListParser, ["keep-alive", "close", "Upgrade", "Transfer-Encoding"]); 36public static readonly KnownHeader ContentDisposition = new("Content-Disposition", HttpHeaderType.Content | HttpHeaderType.NonTrailing, GenericHeaderParser.ContentDispositionParser, ["inline", "attachment"], H2StaticTable.ContentDisposition, H3StaticTable.ContentDisposition); 37public static readonly KnownHeader ContentEncoding = new("Content-Encoding", HttpHeaderType.Content | HttpHeaderType.NonTrailing, GenericHeaderParser.TokenListParser, ["gzip", "deflate", "br", "zstd", "compress", "identity"], H2StaticTable.ContentEncoding, H3StaticTable.ContentEncodingBr); 38public static readonly KnownHeader ContentLanguage = new("Content-Language", HttpHeaderType.Content, GenericHeaderParser.TokenListParser, null, H2StaticTable.ContentLanguage); 39public static readonly KnownHeader ContentLength = new("Content-Length", HttpHeaderType.Content | HttpHeaderType.NonTrailing, Int64NumberHeaderParser.Parser, null, H2StaticTable.ContentLength, H3StaticTable.ContentLength0); 40public static readonly KnownHeader ContentLocation = new("Content-Location", HttpHeaderType.Content | HttpHeaderType.NonTrailing, UriHeaderParser.RelativeOrAbsoluteUriParser, null, H2StaticTable.ContentLocation); 41public static readonly KnownHeader ContentMD5 = new("Content-MD5", HttpHeaderType.Content, ByteArrayHeaderParser.Parser); 42public static readonly KnownHeader ContentRange = new("Content-Range", HttpHeaderType.Content | HttpHeaderType.NonTrailing, GenericHeaderParser.ContentRangeParser, null, H2StaticTable.ContentRange); 43public static readonly KnownHeader ContentSecurityPolicy = new("Content-Security-Policy", ["upgrade-insecure-requests", "frame-ancestors 'self'"], http3StaticTableIndex: H3StaticTable.ContentSecurityPolicyAllNone); 44public static readonly KnownHeader ContentType = new("Content-Type", HttpHeaderType.Content | HttpHeaderType.NonTrailing, MediaTypeHeaderParser.SingleValueParser, null, H2StaticTable.ContentType, H3StaticTable.ContentTypeApplicationDnsMessage); 45public static readonly KnownHeader Cookie = new("Cookie", HttpHeaderType.Custom, CookieHeaderParser.Parser, null, H2StaticTable.Cookie, H3StaticTable.Cookie); 46public static readonly KnownHeader Cookie2 = new("Cookie2"); 47public static readonly KnownHeader CrossOriginResourcePolicy = new("Cross-Origin-Resource-Policy", ["cross-origin", "same-site", "same-origin"]); 48public static readonly KnownHeader Date = new("Date", HttpHeaderType.General | HttpHeaderType.NonTrailing, DateHeaderParser.Parser, null, H2StaticTable.Date, H3StaticTable.Date); 49public static readonly KnownHeader ETag = new("ETag", HttpHeaderType.Response, GenericHeaderParser.SingleValueEntityTagParser, null, H2StaticTable.ETag, H3StaticTable.ETag); 50public static readonly KnownHeader Expect = new("Expect", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueNameValueWithParametersParser, ["100-continue"], H2StaticTable.Expect); 51public static readonly KnownHeader ExpectCT = new("Expect-CT"); 52public static readonly KnownHeader Expires = new("Expires", HttpHeaderType.Content | HttpHeaderType.NonTrailing, DateHeaderParser.Parser, ["Thu, 01 Jan 1970 00:00:01 GMT", "Mon, 01 Jan 1990 00:00:00 GMT"], H2StaticTable.Expires); 53public static readonly KnownHeader From = new("From", HttpHeaderType.Request, GenericHeaderParser.SingleValueParserWithoutValidation, null, H2StaticTable.From); 54public static readonly KnownHeader GrpcEncoding = new("grpc-encoding", ["identity", "gzip", "deflate"]); 55public static readonly KnownHeader GrpcMessage = new("grpc-message"); 56public static readonly KnownHeader GrpcStatus = new("grpc-status", ["0"]); 57public static readonly KnownHeader Host = new("Host", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.HostParser, null, H2StaticTable.Host); 58public static readonly KnownHeader IfMatch = new("If-Match", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueEntityTagParser, null, H2StaticTable.IfMatch); 59public static readonly KnownHeader IfModifiedSince = new("If-Modified-Since", HttpHeaderType.Request | HttpHeaderType.NonTrailing, DateHeaderParser.Parser, null, H2StaticTable.IfModifiedSince, H3StaticTable.IfModifiedSince); 60public static readonly KnownHeader IfNoneMatch = new("If-None-Match", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueEntityTagParser, null, H2StaticTable.IfNoneMatch, H3StaticTable.IfNoneMatch); 61public static readonly KnownHeader IfRange = new("If-Range", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.RangeConditionParser, null, H2StaticTable.IfRange, H3StaticTable.IfRange); 62public static readonly KnownHeader IfUnmodifiedSince = new("If-Unmodified-Since", HttpHeaderType.Request | HttpHeaderType.NonTrailing, DateHeaderParser.Parser, null, H2StaticTable.IfUnmodifiedSince); 63public static readonly KnownHeader KeepAlive = new("Keep-Alive"); 64public static readonly KnownHeader LastModified = new("Last-Modified", HttpHeaderType.Content, DateHeaderParser.Parser, null, H2StaticTable.LastModified, H3StaticTable.LastModified); 65public static readonly KnownHeader Link = new("Link", null, H2StaticTable.Link, H3StaticTable.Link); 66public static readonly KnownHeader Location = new("Location", HttpHeaderType.Response | HttpHeaderType.NonTrailing, UriHeaderParser.RelativeOrAbsoluteUriParser, null, H2StaticTable.Location, H3StaticTable.Location); 67public static readonly KnownHeader MaxForwards = new("Max-Forwards", HttpHeaderType.Request | HttpHeaderType.NonTrailing, Int32NumberHeaderParser.Parser, null, H2StaticTable.MaxForwards); 68public static readonly KnownHeader Origin = new("Origin", http3StaticTableIndex: H3StaticTable.Origin); 69public static readonly KnownHeader P3P = new("P3P"); 70public static readonly KnownHeader Pragma = new("Pragma", HttpHeaderType.General | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueNameValueParser, ["no-cache"]); 71public static readonly KnownHeader ProxyAuthenticate = new("Proxy-Authenticate", HttpHeaderType.Response | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueAuthenticationParser, null, H2StaticTable.ProxyAuthenticate); 72public static readonly KnownHeader ProxyAuthorization = new("Proxy-Authorization", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.SingleValueAuthenticationParser, null, H2StaticTable.ProxyAuthorization); 73public static readonly KnownHeader ProxyConnection = new("Proxy-Connection"); 74public static readonly KnownHeader ProxySupport = new("Proxy-Support"); 75public static readonly KnownHeader PublicKeyPins = new("Public-Key-Pins"); 76public static readonly KnownHeader Range = new("Range", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.RangeParser, null, H2StaticTable.Range, H3StaticTable.RangeBytes0ToAll); 77public static readonly KnownHeader Referer = new("Referer", HttpHeaderType.Request, UriHeaderParser.RelativeOrAbsoluteUriParser, null, H2StaticTable.Referer, H3StaticTable.Referer); // NB: The spelling-mistake "Referer" for "Referrer" must be matched. 78public static readonly KnownHeader ReferrerPolicy = new("Referrer-Policy", ["same-origin", "strict-origin-when-cross-origin", "no-referrer-when-downgrade", "origin-when-cross-origin", "strict-origin", "origin", "no-referrer", "unsafe-url"]); 79public static readonly KnownHeader Refresh = new("Refresh", null, H2StaticTable.Refresh); 80public static readonly KnownHeader RetryAfter = new("Retry-After", HttpHeaderType.Response | HttpHeaderType.NonTrailing, GenericHeaderParser.RetryConditionParser, null, H2StaticTable.RetryAfter); 81public static readonly KnownHeader SecWebSocketAccept = new("Sec-WebSocket-Accept"); 82public static readonly KnownHeader SecWebSocketExtensions = new("Sec-WebSocket-Extensions", ["permessage-deflate"]); 83public static readonly KnownHeader SecWebSocketKey = new("Sec-WebSocket-Key"); 84public static readonly KnownHeader SecWebSocketProtocol = new("Sec-WebSocket-Protocol"); 85public static readonly KnownHeader SecWebSocketVersion = new("Sec-WebSocket-Version"); 86public static readonly KnownHeader Server = new("Server", HttpHeaderType.Response, ProductInfoHeaderParser.MultipleValueParser, null, H2StaticTable.Server, H3StaticTable.Server); 87public static readonly KnownHeader ServerTiming = new("Server-Timing"); 88public static readonly KnownHeader SetCookie = new("Set-Cookie", HttpHeaderType.Custom | HttpHeaderType.NonTrailing, null, null, H2StaticTable.SetCookie, H3StaticTable.SetCookie); 89public static readonly KnownHeader SetCookie2 = new("Set-Cookie2", HttpHeaderType.Custom | HttpHeaderType.NonTrailing, null); 90public static readonly KnownHeader StrictTransportSecurity = new("Strict-Transport-Security", ["max-age=31536000", "max-age=31536000; includeSubDomains; preload", "max-age=31536000; includeSubDomains", "max-age=63072000; includeSubDomains; preload"], H2StaticTable.StrictTransportSecurity, H3StaticTable.StrictTransportSecurityMaxAge31536000); 91public static readonly KnownHeader TE = new("TE", HttpHeaderType.Request | HttpHeaderType.NonTrailing, TransferCodingHeaderParser.MultipleValueWithQualityParser, ["trailers", "compress", "deflate", "gzip"]); 92public static readonly KnownHeader TimingAllowOrigin = new("Timing-Allow-Origin", ["*"]); 93public static readonly KnownHeader Trailer = new("Trailer", HttpHeaderType.General | HttpHeaderType.NonTrailing, GenericHeaderParser.TokenListParser); 94public static readonly KnownHeader TransferEncoding = new("Transfer-Encoding", HttpHeaderType.General | HttpHeaderType.NonTrailing, TransferCodingHeaderParser.MultipleValueParser, ["chunked", "compress", "deflate", "gzip", "identity"], H2StaticTable.TransferEncoding); 95public static readonly KnownHeader TSV = new("TSV"); 96public static readonly KnownHeader Upgrade = new("Upgrade", HttpHeaderType.General, GenericHeaderParser.MultipleValueProductParser); 97public static readonly KnownHeader UpgradeInsecureRequests = new("Upgrade-Insecure-Requests", ["1"], http3StaticTableIndex: H3StaticTable.UpgradeInsecureRequests1); 98public static readonly KnownHeader UserAgent = new("User-Agent", HttpHeaderType.Request, ProductInfoHeaderParser.MultipleValueParser, null, H2StaticTable.UserAgent, H3StaticTable.UserAgent); 99public static readonly KnownHeader Vary = new("Vary", HttpHeaderType.Response | HttpHeaderType.NonTrailing, GenericHeaderParser.TokenListParser, ["Accept-Encoding", "accept-encoding", "Origin", "Referer", "*"], H2StaticTable.Vary, H3StaticTable.VaryAcceptEncoding); 100public static readonly KnownHeader Via = new("Via", HttpHeaderType.General, GenericHeaderParser.MultipleValueViaParser, null, H2StaticTable.Via); 101public static readonly KnownHeader WWWAuthenticate = new("WWW-Authenticate", HttpHeaderType.Response | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueAuthenticationParser, null, H2StaticTable.WwwAuthenticate); 102public static readonly KnownHeader Warning = new("Warning", HttpHeaderType.General | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueWarningParser); 103public static readonly KnownHeader XAspNetVersion = new("X-AspNet-Version"); 104public static readonly KnownHeader XCache = new("X-Cache", ["HIT", "MISS", "hit", "miss"]); 105public static readonly KnownHeader XContentDuration = new("X-Content-Duration"); 106public static readonly KnownHeader XContentTypeOptions = new("X-Content-Type-Options", ["nosniff"], http3StaticTableIndex: H3StaticTable.XContentTypeOptionsNoSniff); 107public static readonly KnownHeader XFrameOptions = new("X-Frame-Options", ["SAMEORIGIN", "DENY", "sameorigin", "deny"], http3StaticTableIndex: H3StaticTable.XFrameOptionsDeny); 108public static readonly KnownHeader XMSEdgeRef = new("X-MSEdge-Ref"); 109public static readonly KnownHeader XPoweredBy = new("X-Powered-By"); 110public static readonly KnownHeader XRequestID = new("X-Request-ID"); 111public static readonly KnownHeader XServedBy = new("X-Served-By"); 112public static readonly KnownHeader XUACompatible = new("X-UA-Compatible"); 113public static readonly KnownHeader XXssProtection = new("X-XSS-Protection", ["1; mode=block", "0", "1"]);

25public HeaderDescriptor(KnownHeader knownHeader) 37public string Name => _descriptor is KnownHeader header ? header.Name : (_descriptor as string)!; 38public HttpHeaderParser? Parser => (_descriptor as KnownHeader)?.Parser; 39public HttpHeaderType HeaderType => _descriptor is KnownHeader knownHeader ? knownHeader.HeaderType : HttpHeaderType.Custom; 40public KnownHeader? KnownHeader => _descriptor as KnownHeader; 42public bool Equals(KnownHeader other) => ReferenceEquals(_descriptor, other); 56public override int GetHashCode() => _descriptor is KnownHeader knownHeader ? knownHeader.GetHashCode() : StringComparer.OrdinalIgnoreCase.GetHashCode(_descriptor); 65KnownHeader? knownHeader = KnownHeaders.TryGetKnownHeader(headerName); 87KnownHeader? knownHeader = KnownHeaders.TryGetKnownHeader(headerName); 129Debug.Assert(_descriptor is KnownHeader); 142if (_descriptor is KnownHeader knownHeader)

163KnownHeader? knownHeader = KnownHeaders.TryGetKnownHeader(descriptor.Name);

16public static readonly KnownHeader PseudoStatus = new(":status", HttpHeaderType.Response, parser: null); 17public static readonly KnownHeader Accept = new("Accept", HttpHeaderType.Request, MediaTypeHeaderParser.MultipleValuesParser, null, H2StaticTable.Accept, H3StaticTable.AcceptAny); 18public static readonly KnownHeader AcceptCharset = new("Accept-Charset", HttpHeaderType.Request, GenericHeaderParser.MultipleValueStringWithQualityParser, null, H2StaticTable.AcceptCharset); 19public static readonly KnownHeader AcceptEncoding = new("Accept-Encoding", HttpHeaderType.Request, GenericHeaderParser.MultipleValueStringWithQualityParser, null, H2StaticTable.AcceptEncoding, H3StaticTable.AcceptEncodingGzipDeflateBr); 20public static readonly KnownHeader AcceptLanguage = new("Accept-Language", HttpHeaderType.Request, GenericHeaderParser.MultipleValueStringWithQualityParser, null, H2StaticTable.AcceptLanguage, H3StaticTable.AcceptLanguage); 21public static readonly KnownHeader AcceptPatch = new("Accept-Patch"); 22public static readonly KnownHeader AcceptRanges = new("Accept-Ranges", HttpHeaderType.Response, GenericHeaderParser.TokenListParser, ["bytes", "none"], H2StaticTable.AcceptRanges, H3StaticTable.AcceptRangesBytes); 23public static readonly KnownHeader AccessControlAllowCredentials = new("Access-Control-Allow-Credentials", HttpHeaderType.Response, parser: null, ["true"], http3StaticTableIndex: H3StaticTable.AccessControlAllowCredentials); 24public static readonly KnownHeader AccessControlAllowHeaders = new("Access-Control-Allow-Headers", HttpHeaderType.Response, parser: null, ["*"], http3StaticTableIndex: H3StaticTable.AccessControlAllowHeadersCacheControl); 25public static readonly KnownHeader AccessControlAllowMethods = new("Access-Control-Allow-Methods", HttpHeaderType.Response, parser: null, ["POST", "*"], http3StaticTableIndex: H3StaticTable.AccessControlAllowMethodsGet); 26public static readonly KnownHeader AccessControlAllowOrigin = new("Access-Control-Allow-Origin", HttpHeaderType.Response, parser: null, ["*", "null"], H2StaticTable.AccessControlAllowOrigin, H3StaticTable.AccessControlAllowOriginAny); 27public static readonly KnownHeader AccessControlExposeHeaders = new("Access-Control-Expose-Headers", HttpHeaderType.Response, parser: null, ["*"], H3StaticTable.AccessControlExposeHeadersContentLength); 28public static readonly KnownHeader AccessControlMaxAge = new("Access-Control-Max-Age"); 29public static readonly KnownHeader Age = new("Age", HttpHeaderType.Response | HttpHeaderType.NonTrailing, TimeSpanHeaderParser.Parser, ["0"], H2StaticTable.Age, H3StaticTable.Age0); 30public static readonly KnownHeader Allow = new("Allow", HttpHeaderType.Content, GenericHeaderParser.TokenListParser, null, H2StaticTable.Allow); 31public static readonly KnownHeader AltSvc = new("Alt-Svc", HttpHeaderType.Response, GetAltSvcHeaderParser(), ["h3=\":443\"", "h3=\":443\"; ma=2592000", "clear"], http3StaticTableIndex: H3StaticTable.AltSvcClear); 32public static readonly KnownHeader AltUsed = new("Alt-Used", HttpHeaderType.Request, parser: null); 33public static readonly KnownHeader Authorization = new("Authorization", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.SingleValueAuthenticationParser, null, H2StaticTable.Authorization, H3StaticTable.Authorization); 34public static readonly KnownHeader CacheControl = new("Cache-Control", HttpHeaderType.General | HttpHeaderType.NonTrailing, CacheControlHeaderParser.Parser, ["must-revalidate", "no-cache", "no-store", "no-transform", "private", "proxy-revalidate", "public"], H2StaticTable.CacheControl, H3StaticTable.CacheControlMaxAge0); 35public static readonly KnownHeader Connection = new("Connection", HttpHeaderType.General, GenericHeaderParser.TokenListParser, ["keep-alive", "close", "Upgrade", "Transfer-Encoding"]); 36public static readonly KnownHeader ContentDisposition = new("Content-Disposition", HttpHeaderType.Content | HttpHeaderType.NonTrailing, GenericHeaderParser.ContentDispositionParser, ["inline", "attachment"], H2StaticTable.ContentDisposition, H3StaticTable.ContentDisposition); 37public static readonly KnownHeader ContentEncoding = new("Content-Encoding", HttpHeaderType.Content | HttpHeaderType.NonTrailing, GenericHeaderParser.TokenListParser, ["gzip", "deflate", "br", "zstd", "compress", "identity"], H2StaticTable.ContentEncoding, H3StaticTable.ContentEncodingBr); 38public static readonly KnownHeader ContentLanguage = new("Content-Language", HttpHeaderType.Content, GenericHeaderParser.TokenListParser, null, H2StaticTable.ContentLanguage); 39public static readonly KnownHeader ContentLength = new("Content-Length", HttpHeaderType.Content | HttpHeaderType.NonTrailing, Int64NumberHeaderParser.Parser, null, H2StaticTable.ContentLength, H3StaticTable.ContentLength0); 40public static readonly KnownHeader ContentLocation = new("Content-Location", HttpHeaderType.Content | HttpHeaderType.NonTrailing, UriHeaderParser.RelativeOrAbsoluteUriParser, null, H2StaticTable.ContentLocation); 41public static readonly KnownHeader ContentMD5 = new("Content-MD5", HttpHeaderType.Content, ByteArrayHeaderParser.Parser); 42public static readonly KnownHeader ContentRange = new("Content-Range", HttpHeaderType.Content | HttpHeaderType.NonTrailing, GenericHeaderParser.ContentRangeParser, null, H2StaticTable.ContentRange); 43public static readonly KnownHeader ContentSecurityPolicy = new("Content-Security-Policy", ["upgrade-insecure-requests", "frame-ancestors 'self'"], http3StaticTableIndex: H3StaticTable.ContentSecurityPolicyAllNone); 44public static readonly KnownHeader ContentType = new("Content-Type", HttpHeaderType.Content | HttpHeaderType.NonTrailing, MediaTypeHeaderParser.SingleValueParser, null, H2StaticTable.ContentType, H3StaticTable.ContentTypeApplicationDnsMessage); 45public static readonly KnownHeader Cookie = new("Cookie", HttpHeaderType.Custom, CookieHeaderParser.Parser, null, H2StaticTable.Cookie, H3StaticTable.Cookie); 46public static readonly KnownHeader Cookie2 = new("Cookie2"); 47public static readonly KnownHeader CrossOriginResourcePolicy = new("Cross-Origin-Resource-Policy", ["cross-origin", "same-site", "same-origin"]); 48public static readonly KnownHeader Date = new("Date", HttpHeaderType.General | HttpHeaderType.NonTrailing, DateHeaderParser.Parser, null, H2StaticTable.Date, H3StaticTable.Date); 49public static readonly KnownHeader ETag = new("ETag", HttpHeaderType.Response, GenericHeaderParser.SingleValueEntityTagParser, null, H2StaticTable.ETag, H3StaticTable.ETag); 50public static readonly KnownHeader Expect = new("Expect", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueNameValueWithParametersParser, ["100-continue"], H2StaticTable.Expect); 51public static readonly KnownHeader ExpectCT = new("Expect-CT"); 52public static readonly KnownHeader Expires = new("Expires", HttpHeaderType.Content | HttpHeaderType.NonTrailing, DateHeaderParser.Parser, ["Thu, 01 Jan 1970 00:00:01 GMT", "Mon, 01 Jan 1990 00:00:00 GMT"], H2StaticTable.Expires); 53public static readonly KnownHeader From = new("From", HttpHeaderType.Request, GenericHeaderParser.SingleValueParserWithoutValidation, null, H2StaticTable.From); 54public static readonly KnownHeader GrpcEncoding = new("grpc-encoding", ["identity", "gzip", "deflate"]); 55public static readonly KnownHeader GrpcMessage = new("grpc-message"); 56public static readonly KnownHeader GrpcStatus = new("grpc-status", ["0"]); 57public static readonly KnownHeader Host = new("Host", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.HostParser, null, H2StaticTable.Host); 58public static readonly KnownHeader IfMatch = new("If-Match", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueEntityTagParser, null, H2StaticTable.IfMatch); 59public static readonly KnownHeader IfModifiedSince = new("If-Modified-Since", HttpHeaderType.Request | HttpHeaderType.NonTrailing, DateHeaderParser.Parser, null, H2StaticTable.IfModifiedSince, H3StaticTable.IfModifiedSince); 60public static readonly KnownHeader IfNoneMatch = new("If-None-Match", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueEntityTagParser, null, H2StaticTable.IfNoneMatch, H3StaticTable.IfNoneMatch); 61public static readonly KnownHeader IfRange = new("If-Range", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.RangeConditionParser, null, H2StaticTable.IfRange, H3StaticTable.IfRange); 62public static readonly KnownHeader IfUnmodifiedSince = new("If-Unmodified-Since", HttpHeaderType.Request | HttpHeaderType.NonTrailing, DateHeaderParser.Parser, null, H2StaticTable.IfUnmodifiedSince); 63public static readonly KnownHeader KeepAlive = new("Keep-Alive"); 64public static readonly KnownHeader LastModified = new("Last-Modified", HttpHeaderType.Content, DateHeaderParser.Parser, null, H2StaticTable.LastModified, H3StaticTable.LastModified); 65public static readonly KnownHeader Link = new("Link", null, H2StaticTable.Link, H3StaticTable.Link); 66public static readonly KnownHeader Location = new("Location", HttpHeaderType.Response | HttpHeaderType.NonTrailing, UriHeaderParser.RelativeOrAbsoluteUriParser, null, H2StaticTable.Location, H3StaticTable.Location); 67public static readonly KnownHeader MaxForwards = new("Max-Forwards", HttpHeaderType.Request | HttpHeaderType.NonTrailing, Int32NumberHeaderParser.Parser, null, H2StaticTable.MaxForwards); 68public static readonly KnownHeader Origin = new("Origin", http3StaticTableIndex: H3StaticTable.Origin); 69public static readonly KnownHeader P3P = new("P3P"); 70public static readonly KnownHeader Pragma = new("Pragma", HttpHeaderType.General | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueNameValueParser, ["no-cache"]); 71public static readonly KnownHeader ProxyAuthenticate = new("Proxy-Authenticate", HttpHeaderType.Response | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueAuthenticationParser, null, H2StaticTable.ProxyAuthenticate); 72public static readonly KnownHeader ProxyAuthorization = new("Proxy-Authorization", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.SingleValueAuthenticationParser, null, H2StaticTable.ProxyAuthorization); 73public static readonly KnownHeader ProxyConnection = new("Proxy-Connection"); 74public static readonly KnownHeader ProxySupport = new("Proxy-Support"); 75public static readonly KnownHeader PublicKeyPins = new("Public-Key-Pins"); 76public static readonly KnownHeader Range = new("Range", HttpHeaderType.Request | HttpHeaderType.NonTrailing, GenericHeaderParser.RangeParser, null, H2StaticTable.Range, H3StaticTable.RangeBytes0ToAll); 77public static readonly KnownHeader Referer = new("Referer", HttpHeaderType.Request, UriHeaderParser.RelativeOrAbsoluteUriParser, null, H2StaticTable.Referer, H3StaticTable.Referer); // NB: The spelling-mistake "Referer" for "Referrer" must be matched. 78public static readonly KnownHeader ReferrerPolicy = new("Referrer-Policy", ["same-origin", "strict-origin-when-cross-origin", "no-referrer-when-downgrade", "origin-when-cross-origin", "strict-origin", "origin", "no-referrer", "unsafe-url"]); 79public static readonly KnownHeader Refresh = new("Refresh", null, H2StaticTable.Refresh); 80public static readonly KnownHeader RetryAfter = new("Retry-After", HttpHeaderType.Response | HttpHeaderType.NonTrailing, GenericHeaderParser.RetryConditionParser, null, H2StaticTable.RetryAfter); 81public static readonly KnownHeader SecWebSocketAccept = new("Sec-WebSocket-Accept"); 82public static readonly KnownHeader SecWebSocketExtensions = new("Sec-WebSocket-Extensions", ["permessage-deflate"]); 83public static readonly KnownHeader SecWebSocketKey = new("Sec-WebSocket-Key"); 84public static readonly KnownHeader SecWebSocketProtocol = new("Sec-WebSocket-Protocol"); 85public static readonly KnownHeader SecWebSocketVersion = new("Sec-WebSocket-Version"); 86public static readonly KnownHeader Server = new("Server", HttpHeaderType.Response, ProductInfoHeaderParser.MultipleValueParser, null, H2StaticTable.Server, H3StaticTable.Server); 87public static readonly KnownHeader ServerTiming = new("Server-Timing"); 88public static readonly KnownHeader SetCookie = new("Set-Cookie", HttpHeaderType.Custom | HttpHeaderType.NonTrailing, null, null, H2StaticTable.SetCookie, H3StaticTable.SetCookie); 89public static readonly KnownHeader SetCookie2 = new("Set-Cookie2", HttpHeaderType.Custom | HttpHeaderType.NonTrailing, null); 90public static readonly KnownHeader StrictTransportSecurity = new("Strict-Transport-Security", ["max-age=31536000", "max-age=31536000; includeSubDomains; preload", "max-age=31536000; includeSubDomains", "max-age=63072000; includeSubDomains; preload"], H2StaticTable.StrictTransportSecurity, H3StaticTable.StrictTransportSecurityMaxAge31536000); 91public static readonly KnownHeader TE = new("TE", HttpHeaderType.Request | HttpHeaderType.NonTrailing, TransferCodingHeaderParser.MultipleValueWithQualityParser, ["trailers", "compress", "deflate", "gzip"]); 92public static readonly KnownHeader TimingAllowOrigin = new("Timing-Allow-Origin", ["*"]); 93public static readonly KnownHeader Trailer = new("Trailer", HttpHeaderType.General | HttpHeaderType.NonTrailing, GenericHeaderParser.TokenListParser); 94public static readonly KnownHeader TransferEncoding = new("Transfer-Encoding", HttpHeaderType.General | HttpHeaderType.NonTrailing, TransferCodingHeaderParser.MultipleValueParser, ["chunked", "compress", "deflate", "gzip", "identity"], H2StaticTable.TransferEncoding); 95public static readonly KnownHeader TSV = new("TSV"); 96public static readonly KnownHeader Upgrade = new("Upgrade", HttpHeaderType.General, GenericHeaderParser.MultipleValueProductParser); 97public static readonly KnownHeader UpgradeInsecureRequests = new("Upgrade-Insecure-Requests", ["1"], http3StaticTableIndex: H3StaticTable.UpgradeInsecureRequests1); 98public static readonly KnownHeader UserAgent = new("User-Agent", HttpHeaderType.Request, ProductInfoHeaderParser.MultipleValueParser, null, H2StaticTable.UserAgent, H3StaticTable.UserAgent); 99public static readonly KnownHeader Vary = new("Vary", HttpHeaderType.Response | HttpHeaderType.NonTrailing, GenericHeaderParser.TokenListParser, ["Accept-Encoding", "accept-encoding", "Origin", "Referer", "*"], H2StaticTable.Vary, H3StaticTable.VaryAcceptEncoding); 100public static readonly KnownHeader Via = new("Via", HttpHeaderType.General, GenericHeaderParser.MultipleValueViaParser, null, H2StaticTable.Via); 101public static readonly KnownHeader WWWAuthenticate = new("WWW-Authenticate", HttpHeaderType.Response | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueAuthenticationParser, null, H2StaticTable.WwwAuthenticate); 102public static readonly KnownHeader Warning = new("Warning", HttpHeaderType.General | HttpHeaderType.NonTrailing, GenericHeaderParser.MultipleValueWarningParser); 103public static readonly KnownHeader XAspNetVersion = new("X-AspNet-Version"); 104public static readonly KnownHeader XCache = new("X-Cache", ["HIT", "MISS", "hit", "miss"]); 105public static readonly KnownHeader XContentDuration = new("X-Content-Duration"); 106public static readonly KnownHeader XContentTypeOptions = new("X-Content-Type-Options", ["nosniff"], http3StaticTableIndex: H3StaticTable.XContentTypeOptionsNoSniff); 107public static readonly KnownHeader XFrameOptions = new("X-Frame-Options", ["SAMEORIGIN", "DENY", "sameorigin", "deny"], http3StaticTableIndex: H3StaticTable.XFrameOptionsDeny); 108public static readonly KnownHeader XMSEdgeRef = new("X-MSEdge-Ref"); 109public static readonly KnownHeader XPoweredBy = new("X-Powered-By"); 110public static readonly KnownHeader XRequestID = new("X-Request-ID"); 111public static readonly KnownHeader XServedBy = new("X-Served-By"); 112public static readonly KnownHeader XUACompatible = new("X-UA-Compatible"); 113public static readonly KnownHeader XXssProtection = new("X-XSS-Protection", ["1; mode=block", "0", "1"]); 128private static KnownHeader? GetCandidate<T>(ReadOnlySpan<T> key) 388public static KnownHeader? TryGetKnownHeader(string name) 390KnownHeader? candidate = GetCandidate<char>(name); 399public static KnownHeader? TryGetKnownHeader(ReadOnlySpan<byte> name) 401KnownHeader? candidate = GetCandidate(name);

1444KnownHeader? knownHeader = header.Key.KnownHeader;

790KnownHeader? knownHeader = header.Key.KnownHeader;

426if (header.Key.KnownHeader is KnownHeader knownHeader)