consts

const (

	// DefaultMaxInMemoryFileSize defines the in memory file size when parse
	// multipart_form. If the size exceeds, then hertz will write to disk.
	DefaultMaxInMemoryFileSize = 16 * 1024 * 1024

	// DefaultDialTimeout is timeout used by Dialer and DialDualStack
	// for establishing TCP connections.
	DefaultDialTimeout = time.Second

	// DefaultMaxConnsPerHost is the maximum number of concurrent connections
	// http client may establish per host by default (i.e. if
	// Client.MaxConnsPerHost isn't set).
	DefaultMaxConnsPerHost = 512

	// DefaultMaxIdleConnDuration is the default duration before idle keep-alive
	// connection is closed.
	DefaultMaxIdleConnDuration = 10 * time.Second

	// DefaultMaxIdempotentCallAttempts is the default idempotent calls attempts count.
	DefaultMaxIdempotentCallAttempts = 1

	// DefaultMaxRetryTimes is the default call times of retry
	DefaultMaxRetryTimes = 1
)

const (
	// files bigger than this size are sent with sendfile
	MaxSmallFileSize = 2 * 4096

	// FSHandlerCacheDuration is the default expiration duration for inactive
	// file handlers opened by FS.
	FSHandlerCacheDuration = 10 * time.Second

	// FSCompressedFileSuffix is the suffix FS adds to the original file names
	// when trying to store compressed file under the new file name.
	// See FS.Compress for details.
	FSCompressedFileSuffix    = ".hertz.gz"
	FsMinCompressRatio        = 0.8
	FsMaxCompressibleFileSize = 8 * 1024 * 1024
)

const (
	HeaderDate = "Date"

	HeaderIfModifiedSince = "If-Modified-Since"
	HeaderLastModified    = "Last-Modified"

	// Redirects
	HeaderLocation = "Location"

	// Transfer coding
	HeaderTE               = "TE"
	HeaderTrailer          = "Trailer"
	HeaderTrailerLower     = "trailer"
	HeaderTransferEncoding = "Transfer-Encoding"

	// Controls
	HeaderCookie         = "Cookie"
	HeaderExpect         = "Expect"
	HeaderMaxForwards    = "Max-Forwards"
	HeaderSetCookie      = "Set-Cookie"
	HeaderSetCookieLower = "set-cookie"

	// Connection management
	HeaderConnection      = "Connection"
	HeaderKeepAlive       = "Keep-Alive"
	HeaderProxyConnection = "Proxy-Connection"

	// Authentication
	HeaderAuthorization      = "Authorization"
	HeaderProxyAuthenticate  = "Proxy-Authenticate"
	HeaderProxyAuthorization = "Proxy-Authorization"
	HeaderWWWAuthenticate    = "WWW-Authenticate"

	// Range requests
	HeaderAcceptRanges = "Accept-Ranges"
	HeaderContentRange = "Content-Range"
	HeaderIfRange      = "If-Range"
	HeaderRange        = "Range"

	// Response context
	HeaderAllow       = "Allow"
	HeaderServer      = "Server"
	HeaderServerLower = "server"

	// Request context
	HeaderFrom           = "From"
	HeaderHost           = "Host"
	HeaderReferer        = "Referer"
	HeaderReferrerPolicy = "Referrer-Policy"
	HeaderUserAgent      = "User-Agent"

	// Message body information
	HeaderContentEncoding = "Content-Encoding"
	HeaderContentLanguage = "Content-Language"
	HeaderContentLength   = "Content-Length"
	HeaderContentLocation = "Content-Location"
	HeaderContentType     = "Content-Type"

	// Content negotiation
	HeaderAccept         = "Accept"
	HeaderAcceptCharset  = "Accept-Charset"
	HeaderAcceptEncoding = "Accept-Encoding"
	HeaderAcceptLanguage = "Accept-Language"
	HeaderAltSvc         = "Alt-Svc"

	// Protocol
	HTTP11 = "HTTP/1.1"
	HTTP10 = "HTTP/1.0"
	HTTP20 = "HTTP/2.0"

	// MIME text
	MIMETextPlain             = "text/plain"
	MIMETextPlainUTF8         = "text/plain; charset=utf-8"
	MIMETextPlainISO88591     = "text/plain; charset=iso-8859-1"
	MIMETextPlainFormatFlowed = "text/plain; format=flowed"
	MIMETextPlainDelSpaceYes  = "text/plain; delsp=yes"
	MiMETextPlainDelSpaceNo   = "text/plain; delsp=no"
	MIMETextHtml              = "text/html"
	MIMETextCss               = "text/css"
	MIMETextJavascript        = "text/javascript"
	MIMEMultipartPOSTForm     = "multipart/form-data"

	// MIME application
	MIMEApplicationOctetStream  = "application/octet-stream"
	MIMEApplicationFlash        = "application/x-shockwave-flash"
	MIMEApplicationHTMLForm     = "application/x-www-form-urlencoded"
	MIMEApplicationHTMLFormUTF8 = "application/x-www-form-urlencoded; charset=UTF-8"
	MIMEApplicationTar          = "application/x-tar"
	MIMEApplicationGZip         = "application/gzip"
	MIMEApplicationXGZip        = "application/x-gzip"
	MIMEApplicationBZip2        = "application/bzip2"
	MIMEApplicationXBZip2       = "application/x-bzip2"
	MIMEApplicationShell        = "application/x-sh"
	MIMEApplicationDownload     = "application/x-msdownload"
	MIMEApplicationJSON         = "application/json"
	MIMEApplicationJSONUTF8     = "application/json; charset=utf-8"
	MIMEApplicationXML          = "application/xml"
	MIMEApplicationXMLUTF8      = "application/xml; charset=utf-8"
	MIMEApplicationZip          = "application/zip"
	MIMEApplicationPdf          = "application/pdf"
	MIMEApplicationWord         = "application/msword"
	MIMEApplicationExcel        = "application/vnd.ms-excel"
	MIMEApplicationPPT          = "application/vnd.ms-powerpoint"
	MIMEApplicationOpenXMLWord  = "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
	MIMEApplicationOpenXMLExcel = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
	MIMEApplicationOpenXMLPPT   = "application/vnd.openxmlformats-officedocument.presentationml.presentation"
	MIMEPROTOBUF                = "application/x-protobuf"

	// MIME image
	MIMEImageJPEG         = "image/jpeg"
	MIMEImagePNG          = "image/png"
	MIMEImageGIF          = "image/gif"
	MIMEImageBitmap       = "image/bmp"
	MIMEImageWebP         = "image/webp"
	MIMEImageIco          = "image/x-icon"
	MIMEImageMicrosoftICO = "image/vnd.microsoft.icon"
	MIMEImageTIFF         = "image/tiff"
	MIMEImageSVG          = "image/svg+xml"
	MIMEImagePhotoshop    = "image/vnd.adobe.photoshop"

	// MIME audio
	MIMEAudioBasic     = "audio/basic"
	MIMEAudioL24       = "audio/L24"
	MIMEAudioMP3       = "audio/mp3"
	MIMEAudioMP4       = "audio/mp4"
	MIMEAudioMPEG      = "audio/mpeg"
	MIMEAudioOggVorbis = "audio/ogg"
	MIMEAudioWAVE      = "audio/vnd.wave"
	MIMEAudioWebM      = "audio/webm"
	MIMEAudioAAC       = "audio/x-aac"
	MIMEAudioAIFF      = "audio/x-aiff"
	MIMEAudioMIDI      = "audio/x-midi"
	MIMEAudioM3U       = "audio/x-mpegurl"
	MIMEAudioRealAudio = "audio/x-pn-realaudio"

	// MIME video
	MIMEVideoMPEG          = "video/mpeg"
	MIMEVideoOgg           = "video/ogg"
	MIMEVideoMP4           = "video/mp4"
	MIMEVideoQuickTime     = "video/quicktime"
	MIMEVideoWinMediaVideo = "video/x-ms-wmv"
	MIMEVideWebM           = "video/webm"
	MIMEVideoFlashVideo    = "video/x-flv"
	MIMEVideo3GPP          = "video/3gpp"
	MIMEVideoAVI           = "video/x-msvideo"
	MIMEVideoMatroska      = "video/x-matroska"
)

const (
	MethodGet     = "GET"     // RFC 7231, 4.3.1
	MethodHead    = "HEAD"    // RFC 7231, 4.3.2
	MethodPost    = "POST"    // RFC 7231, 4.3.3
	MethodPut     = "PUT"     // RFC 7231, 4.3.4
	MethodPatch   = "PATCH"   // RFC 5789
	MethodDelete  = "DELETE"  // RFC 7231, 4.3.5
	MethodConnect = "CONNECT" // RFC 7231, 4.3.6
	MethodOptions = "OPTIONS" // RFC 7231, 4.3.7
	MethodTrace   = "TRACE"   // RFC 7231, 4.3.8
)

const (
	StatusContinue           = 100 // RFC 7231, 6.2.1
	StatusSwitchingProtocols = 101 // RFC 7231, 6.2.2
	StatusProcessing         = 102 // RFC 2518, 10.1

	StatusOK                   = 200 // RFC 7231, 6.3.1
	StatusCreated              = 201 // RFC 7231, 6.3.2
	StatusAccepted             = 202 // RFC 7231, 6.3.3
	StatusNonAuthoritativeInfo = 203 // RFC 7231, 6.3.4
	StatusNoContent            = 204 // RFC 7231, 6.3.5
	StatusResetContent         = 205 // RFC 7231, 6.3.6
	StatusPartialContent       = 206 // RFC 7233, 4.1
	StatusMultiStatus          = 207 // RFC 4918, 11.1
	StatusAlreadyReported      = 208 // RFC 5842, 7.1
	StatusIMUsed               = 226 // RFC 3229, 10.4.1

	StatusMultipleChoices  = 300 // RFC 7231, 6.4.1
	StatusMovedPermanently = 301 // RFC 7231, 6.4.2
	StatusFound            = 302 // RFC 7231, 6.4.3
	StatusSeeOther         = 303 // RFC 7231, 6.4.4
	StatusNotModified      = 304 // RFC 7232, 4.1
	StatusUseProxy         = 305 // RFC 7231, 6.4.5

	StatusTemporaryRedirect = 307 // RFC 7231, 6.4.7
	StatusPermanentRedirect = 308 // RFC 7538, 3

	StatusBadRequest                   = 400 // RFC 7231, 6.5.1
	StatusUnauthorized                 = 401 // RFC 7235, 3.1
	StatusPaymentRequired              = 402 // RFC 7231, 6.5.2
	StatusForbidden                    = 403 // RFC 7231, 6.5.3
	StatusNotFound                     = 404 // RFC 7231, 6.5.4
	StatusMethodNotAllowed             = 405 // RFC 7231, 6.5.5
	StatusNotAcceptable                = 406 // RFC 7231, 6.5.6
	StatusProxyAuthRequired            = 407 // RFC 7235, 3.2
	StatusRequestTimeout               = 408 // RFC 7231, 6.5.7
	StatusConflict                     = 409 // RFC 7231, 6.5.8
	StatusGone                         = 410 // RFC 7231, 6.5.9
	StatusLengthRequired               = 411 // RFC 7231, 6.5.10
	StatusPreconditionFailed           = 412 // RFC 7232, 4.2
	StatusRequestEntityTooLarge        = 413 // RFC 7231, 6.5.11
	StatusRequestURITooLong            = 414 // RFC 7231, 6.5.12
	StatusUnsupportedMediaType         = 415 // RFC 7231, 6.5.13
	StatusRequestedRangeNotSatisfiable = 416 // RFC 7233, 4.4
	StatusExpectationFailed            = 417 // RFC 7231, 6.5.14
	StatusTeapot                       = 418 // RFC 7168, 2.3.3
	StatusUnprocessableEntity          = 422 // RFC 4918, 11.2
	StatusLocked                       = 423 // RFC 4918, 11.3
	StatusFailedDependency             = 424 // RFC 4918, 11.4
	StatusUpgradeRequired              = 426 // RFC 7231, 6.5.15
	StatusPreconditionRequired         = 428 // RFC 6585, 3
	StatusTooManyRequests              = 429 // RFC 6585, 4
	StatusRequestHeaderFieldsTooLarge  = 431 // RFC 6585, 5
	StatusUnavailableForLegalReasons   = 451 // RFC 7725, 3

	StatusInternalServerError           = 500 // RFC 7231, 6.6.1
	StatusNotImplemented                = 501 // RFC 7231, 6.6.2
	StatusBadGateway                    = 502 // RFC 7231, 6.6.3
	StatusServiceUnavailable            = 503 // RFC 7231, 6.6.4
	StatusGatewayTimeout                = 504 // RFC 7231, 6.6.5
	StatusHTTPVersionNotSupported       = 505 // RFC 7231, 6.6.6
	StatusVariantAlsoNegotiates         = 506 // RFC 2295, 8.1
	StatusInsufficientStorage           = 507 // RFC 4918, 11.5
	StatusLoopDetected                  = 508 // RFC 5842, 7.2
	StatusNotExtended                   = 510 // RFC 2774, 7
	StatusNetworkAuthenticationRequired = 511 // RFC 6585, 6
)

const ClientPreface = "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"