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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package http

// HTTP status codes as registered with IANA.
// See: https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
const (
	StatusContinue           = 100 // RFC 9110, 15.2.1
	StatusSwitchingProtocols = 101 // RFC 9110, 15.2.2
	StatusProcessing         = 102 // RFC 2518, 10.1
	StatusEarlyHints         = 103 // RFC 8297

	StatusOK                   = 200 // RFC 9110, 15.3.1
	StatusCreated              = 201 // RFC 9110, 15.3.2
	StatusAccepted             = 202 // RFC 9110, 15.3.3
	StatusNonAuthoritativeInfo = 203 // RFC 9110, 15.3.4
	StatusNoContent            = 204 // RFC 9110, 15.3.5
	StatusResetContent         = 205 // RFC 9110, 15.3.6
	StatusPartialContent       = 206 // RFC 9110, 15.3.7
	StatusMultiStatus          = 207 // RFC 4918, 11.1
	StatusAlreadyReported      = 208 // RFC 5842, 7.1
	StatusIMUsed               = 226 // RFC 3229, 10.4.1

	StatusMultipleChoices   = 300 // RFC 9110, 15.4.1
	StatusMovedPermanently  = 301 // RFC 9110, 15.4.2
	StatusFound             = 302 // RFC 9110, 15.4.3
	StatusSeeOther          = 303 // RFC 9110, 15.4.4
	StatusNotModified       = 304 // RFC 9110, 15.4.5
	StatusUseProxy          = 305 // RFC 9110, 15.4.6
	_                       = 306 // RFC 9110, 15.4.7 (Unused)
	StatusTemporaryRedirect = 307 // RFC 9110, 15.4.8
	StatusPermanentRedirect = 308 // RFC 9110, 15.4.9

	StatusBadRequest                   = 400 // RFC 9110, 15.5.1
	StatusUnauthorized                 = 401 // RFC 9110, 15.5.2
	StatusPaymentRequired              = 402 // RFC 9110, 15.5.3
	StatusForbidden                    = 403 // RFC 9110, 15.5.4
	StatusNotFound                     = 404 // RFC 9110, 15.5.5
	StatusMethodNotAllowed             = 405 // RFC 9110, 15.5.6
	StatusNotAcceptable                = 406 // RFC 9110, 15.5.7
	StatusProxyAuthRequired            = 407 // RFC 9110, 15.5.8
	StatusRequestTimeout               = 408 // RFC 9110, 15.5.9
	StatusConflict                     = 409 // RFC 9110, 15.5.10
	StatusGone                         = 410 // RFC 9110, 15.5.11
	StatusLengthRequired               = 411 // RFC 9110, 15.5.12
	StatusPreconditionFailed           = 412 // RFC 9110, 15.5.13
	StatusRequestEntityTooLarge        = 413 // RFC 9110, 15.5.14
	StatusRequestURITooLong            = 414 // RFC 9110, 15.5.15
	StatusUnsupportedMediaType         = 415 // RFC 9110, 15.5.16
	StatusRequestedRangeNotSatisfiable = 416 // RFC 9110, 15.5.17
	StatusExpectationFailed            = 417 // RFC 9110, 15.5.18
	StatusTeapot                       = 418 // RFC 9110, 15.5.19 (Unused)
	StatusMisdirectedRequest           = 421 // RFC 9110, 15.5.20
	StatusUnprocessableEntity          = 422 // RFC 9110, 15.5.21
	StatusLocked                       = 423 // RFC 4918, 11.3
	StatusFailedDependency             = 424 // RFC 4918, 11.4
	StatusTooEarly                     = 425 // RFC 8470, 5.2.
	StatusUpgradeRequired              = 426 // RFC 9110, 15.5.22
	StatusPreconditionRequired         = 428 // RFC 6585, 3
	StatusTooManyRequests              = 429 // RFC 6585, 4
	StatusRequestHeaderFieldsTooLarge  = 431 // RFC 6585, 5
	StatusUnavailableForLegalReasons   = 451 // RFC 7725, 3

	StatusInternalServerError           = 500 // RFC 9110, 15.6.1
	StatusNotImplemented                = 501 // RFC 9110, 15.6.2
	StatusBadGateway                    = 502 // RFC 9110, 15.6.3
	StatusServiceUnavailable            = 503 // RFC 9110, 15.6.4
	StatusGatewayTimeout                = 504 // RFC 9110, 15.6.5
	StatusHTTPVersionNotSupported       = 505 // RFC 9110, 15.6.6
	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
)

// StatusText returns a text for the HTTP status code. It returns the empty
// string if the code is unknown.
func StatusText(code int) string {
	switch code {
	case StatusContinue:
		return "Continue"
	case StatusSwitchingProtocols:
		return "Switching Protocols"
	case StatusProcessing:
		return "Processing"
	case StatusEarlyHints:
		return "Early Hints"
	case StatusOK:
		return "OK"
	case StatusCreated:
		return "Created"
	case StatusAccepted:
		return "Accepted"
	case StatusNonAuthoritativeInfo:
		return "Non-Authoritative Information"
	case StatusNoContent:
		return "No Content"
	case StatusResetContent:
		return "Reset Content"
	case StatusPartialContent:
		return "Partial Content"
	case StatusMultiStatus:
		return "Multi-Status"
	case StatusAlreadyReported:
		return "Already Reported"
	case StatusIMUsed:
		return "IM Used"
	case StatusMultipleChoices:
		return "Multiple Choices"
	case StatusMovedPermanently:
		return "Moved Permanently"
	case StatusFound:
		return "Found"
	case StatusSeeOther:
		return "See Other"
	case StatusNotModified:
		return "Not Modified"
	case StatusUseProxy:
		return "Use Proxy"
	case StatusTemporaryRedirect:
		return "Temporary Redirect"
	case StatusPermanentRedirect:
		return "Permanent Redirect"
	case StatusBadRequest:
		return "Bad Request"
	case StatusUnauthorized:
		return "Unauthorized"
	case StatusPaymentRequired:
		return "Payment Required"
	case StatusForbidden:
		return "Forbidden"
	case StatusNotFound:
		return "Not Found"
	case StatusMethodNotAllowed:
		return "Method Not Allowed"
	case StatusNotAcceptable:
		return "Not Acceptable"
	case StatusProxyAuthRequired:
		return "Proxy Authentication Required"
	case StatusRequestTimeout:
		return "Request Timeout"
	case StatusConflict:
		return "Conflict"
	case StatusGone:
		return "Gone"
	case StatusLengthRequired:
		return "Length Required"
	case StatusPreconditionFailed:
		return "Precondition Failed"
	case StatusRequestEntityTooLarge:
		return "Request Entity Too Large"
	case StatusRequestURITooLong:
		return "Request URI Too Long"
	case StatusUnsupportedMediaType:
		return "Unsupported Media Type"
	case StatusRequestedRangeNotSatisfiable:
		return "Requested Range Not Satisfiable"
	case StatusExpectationFailed:
		return "Expectation Failed"
	case StatusTeapot:
		return "I'm a teapot"
	case StatusMisdirectedRequest:
		return "Misdirected Request"
	case StatusUnprocessableEntity:
		return "Unprocessable Entity"
	case StatusLocked:
		return "Locked"
	case StatusFailedDependency:
		return "Failed Dependency"
	case StatusTooEarly:
		return "Too Early"
	case StatusUpgradeRequired:
		return "Upgrade Required"
	case StatusPreconditionRequired:
		return "Precondition Required"
	case StatusTooManyRequests:
		return "Too Many Requests"
	case StatusRequestHeaderFieldsTooLarge:
		return "Request Header Fields Too Large"
	case StatusUnavailableForLegalReasons:
		return "Unavailable For Legal Reasons"
	case StatusInternalServerError:
		return "Internal Server Error"
	case StatusNotImplemented:
		return "Not Implemented"
	case StatusBadGateway:
		return "Bad Gateway"
	case StatusServiceUnavailable:
		return "Service Unavailable"
	case StatusGatewayTimeout:
		return "Gateway Timeout"
	case StatusHTTPVersionNotSupported:
		return "HTTP Version Not Supported"
	case StatusVariantAlsoNegotiates:
		return "Variant Also Negotiates"
	case StatusInsufficientStorage:
		return "Insufficient Storage"
	case StatusLoopDetected:
		return "Loop Detected"
	case StatusNotExtended:
		return "Not Extended"
	case StatusNetworkAuthenticationRequired:
		return "Network Authentication Required"
	default:
		return ""
	}
}