http

const (
	HeaderAccept                        = "Accept"
	HeaderAcceptCharset                 = "Accept-Charset"
	HeaderAcceptEncoding                = "Accept-Encoding"
	HeaderAcceptLanguage                = "Accept-Language"
	HeaderAuthorization                 = "Authorization"
	HeaderCacheControl                  = "Cache-Control"
	HeaderContentLength                 = "Content-Length"
	HeaderContentMD5                    = "Content-MD5"
	HeaderContentType                   = "Content-Type"
	HeaderDoNotTrack                    = "DNT"
	HeaderIfMatch                       = "If-Match"
	HeaderIfModifiedSince               = "If-Modified-Since"
	HeaderIfNoneMatch                   = "If-None-Match"
	HeaderIfRange                       = "If-Range"
	HeaderIfUnmodifiedSince             = "If-Unmodified-Since"
	HeaderMaxForwards                   = "Max-Forwards"
	HeaderProxyAuthorization            = "Proxy-Authorization"
	HeaderPragma                        = "Pragma"
	HeaderRange                         = "Range"
	HeaderReferer                       = "Referer"
	HeaderUserAgent                     = "User-Agent"
	HeaderTE                            = "TE"
	HeaderVia                           = "Via"
	HeaderWarning                       = "Warning"
	HeaderCookie                        = "Cookie"
	HeaderOrigin                        = "Origin"
	HeaderAcceptDatetime                = "Accept-Datetime"
	HeaderXRequestedWith                = "X-Requested-With"
	HeaderAccessControlAllowOrigin      = "Access-Control-Allow-Origin"
	HeaderAccessControlAllowMethods     = "Access-Control-Allow-Methods"
	HeaderAccessControlAllowHeaders     = "Access-Control-Allow-Headers"
	HeaderAccessControlAllowCredentials = "Access-Control-Allow-Credentials"
	HeaderAccessControlExposeHeaders    = "Access-Control-Expose-Headers"
	HeaderAccessControlMaxAge           = "Access-Control-Max-Age"
	HeaderAccessControlRequestMethod    = "Access-Control-Request-Method"
	HeaderAccessControlRequestHeaders   = "Access-Control-Request-Headers"
	HeaderAcceptPatch                   = "Accept-Patch"
	HeaderAcceptRanges                  = "Accept-Ranges"
	HeaderAllow                         = "Allow"
	HeaderContentEncoding               = "Content-Encoding"
	HeaderContentLanguage               = "Content-Language"
	HeaderContentLocation               = "Content-Location"
	HeaderContentDisposition            = "Content-Disposition"
	HeaderContentRange                  = "Content-Range"
	HeaderETag                          = "Etag"
	HeaderExpires                       = "Expires"
	HeaderLastModified                  = "Last-Modified"
	HeaderLink                          = "Link"
	HeaderLocation                      = "Location"
	HeaderP3P                           = "P3P"
	HeaderProxyAuthenticate             = "Proxy-Authenticate"
	HeaderRefresh                       = "Refresh"
	HeaderRetryAfter                    = "Retry-After"
	HeaderServer                        = "Server"
	HeaderSetCookie                     = "Set-Cookie"
	HeaderStrictTransportSecurity       = "Strict-Transport-Security"
	HeaderTransferEncoding              = "Transfer-Encoding"
	HeaderUpgrade                       = "Upgrade"
	HeaderVary                          = "Vary"
	HeaderWwwAuthenticate               = "Www-Authenticate"

	// Non-Standard
	HeaderXRequestId             = "X-Request-ID"
	HeaderXFrameOptions          = "X-Frame-Options"
	HeaderXXssProtection         = "X-XSS-Protection"
	HeaderContentSecurityPolicy  = "Content-Security-Policy"
	HeaderXContentSecurityPolicy = "X-Content-Security-Policy"
	HeaderXWebKitCsp             = "X-WebKit-CSP"
	HeaderXContentTypeOptions    = "X-Content-Type-Options"
	HeaderXPoweredBy             = "X-Powered-By"
	HeaderXUaCompatible          = "X-Ua-Compatible"
	HeaderXForwardedProto        = "X-Forwarded-Proto"
	HeaderXHTTPMethodOverride    = "X-HTTP-Method-Override"
	HeaderXForwardedFor          = "X-Forwarded-For"
	HeaderXRealIp                = "X-Real-IP"
	HeaderXCsrfToken             = "X-Csrf-Token"
	HeaderXRatelimitLimit        = "X-Ratelimit-Limit"
	HeaderXRatelimitRemaining    = "X-Ratelimit-Remaining"
	HeaderXRatelimitReset        = "X-Ratelimit-Reset"
)

const (
	MethodGet     = "GET"
	MethodHead    = "HEAD"
	MethodPost    = "POST"
	MethodPut     = "PUT"
	MethodPatch   = "PATCH" // RFC 5789
	MethodDelete  = "DELETE"
	MethodConnect = "CONNECT"
	MethodOptions = "OPTIONS"
	MethodTrace   = "TRACE"
)

const (
	StatusContinue           = 100 // RFC 7231, 6.2.1
	StatusSwitchingProtocols = 101 // RFC 7231, 6.2.2
	StatusProcessing         = 102 // RFC 2518, 10.1
	StatusEarlyHints         = 103 // RFC 8297

	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
	StatusMisdirectedRequest           = 421 // RFC 7540, 9.1.2
	StatusUnprocessableEntity          = 422 // RFC 4918, 11.2
	StatusLocked                       = 423 // RFC 4918, 11.3
	StatusFailedDependency             = 424 // RFC 4918, 11.4
	StatusTooEarly                     = 425 // RFC 8470, 5.2.
	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
)