Add more http error values (#2277)

* Add more HTTP error constants

Author: siyul-park

echo.go

@@ -291,24 +291,53 @@ var (
 
 // Errors
 var (
-	ErrUnsupportedMediaType        = NewHTTPError(http.StatusUnsupportedMediaType)
-	ErrNotFound                    = NewHTTPError(http.StatusNotFound)
-	ErrUnauthorized                = NewHTTPError(http.StatusUnauthorized)
-	ErrForbidden                   = NewHTTPError(http.StatusForbidden)
-	ErrMethodNotAllowed            = NewHTTPError(http.StatusMethodNotAllowed)
-	ErrStatusRequestEntityTooLarge = NewHTTPError(http.StatusRequestEntityTooLarge)
-	ErrTooManyRequests             = NewHTTPError(http.StatusTooManyRequests)
-	ErrBadRequest                  = NewHTTPError(http.StatusBadRequest)
-	ErrBadGateway                  = NewHTTPError(http.StatusBadGateway)
-	ErrInternalServerError         = NewHTTPError(http.StatusInternalServerError)
-	ErrRequestTimeout              = NewHTTPError(http.StatusRequestTimeout)
-	ErrServiceUnavailable          = NewHTTPError(http.StatusServiceUnavailable)
-	ErrValidatorNotRegistered      = errors.New("validator not registered")
-	ErrRendererNotRegistered       = errors.New("renderer not registered")
-	ErrInvalidRedirectCode         = errors.New("invalid redirect status code")
-	ErrCookieNotFound              = errors.New("cookie not found")
-	ErrInvalidCertOrKeyType        = errors.New("invalid cert or key type, must be string or []byte")
-	ErrInvalidListenerNetwork      = errors.New("invalid listener network")
+	ErrBadRequest                    = NewHTTPError(http.StatusBadRequest)                    // HTTP 400 Bad Request
+	ErrUnauthorized                  = NewHTTPError(http.StatusUnauthorized)                  // HTTP 401 Unauthorized
+	ErrPaymentRequired               = NewHTTPError(http.StatusPaymentRequired)               // HTTP 402 Payment Required
+	ErrForbidden                     = NewHTTPError(http.StatusForbidden)                     // HTTP 403 Forbidden
+	ErrNotFound                      = NewHTTPError(http.StatusNotFound)                      // HTTP 404 Not Found
+	ErrMethodNotAllowed              = NewHTTPError(http.StatusMethodNotAllowed)              // HTTP 405 Method Not Allowed
+	ErrNotAcceptable                 = NewHTTPError(http.StatusNotAcceptable)                 // HTTP 406 Not Acceptable
+	ErrProxyAuthRequired             = NewHTTPError(http.StatusProxyAuthRequired)             // HTTP 407 Proxy AuthRequired
+	ErrRequestTimeout                = NewHTTPError(http.StatusRequestTimeout)                // HTTP 408 Request Timeout
+	ErrConflict                      = NewHTTPError(http.StatusConflict)                      // HTTP 409 Conflict
+	ErrGone                          = NewHTTPError(http.StatusGone)                          // HTTP 410 Gone
+	ErrLengthRequired                = NewHTTPError(http.StatusLengthRequired)                // HTTP 411 Length Required
+	ErrPreconditionFailed            = NewHTTPError(http.StatusPreconditionFailed)            // HTTP 412 Precondition Failed
+	ErrStatusRequestEntityTooLarge   = NewHTTPError(http.StatusRequestEntityTooLarge)         // HTTP 413 Payload Too Large
+	ErrRequestURITooLong             = NewHTTPError(http.StatusRequestURITooLong)             // HTTP 414 URI Too Long
+	ErrUnsupportedMediaType          = NewHTTPError(http.StatusUnsupportedMediaType)          // HTTP 415 Unsupported Media Type
+	ErrRequestedRangeNotSatisfiable  = NewHTTPError(http.StatusRequestedRangeNotSatisfiable)  // HTTP 416 Range Not Satisfiable
+	ErrExpectationFailed             = NewHTTPError(http.StatusExpectationFailed)             // HTTP 417 Expectation Failed
+	ErrTeapot                        = NewHTTPError(http.StatusTeapot)                        // HTTP 418 I'm a teapot
+	ErrMisdirectedRequest            = NewHTTPError(http.StatusMisdirectedRequest)            // HTTP 421 Misdirected Request
+	ErrUnprocessableEntity           = NewHTTPError(http.StatusUnprocessableEntity)           // HTTP 422 Unprocessable Entity
+	ErrLocked                        = NewHTTPError(http.StatusLocked)                        // HTTP 423 Locked
+	ErrFailedDependency              = NewHTTPError(http.StatusFailedDependency)              // HTTP 424 Failed Dependency
+	ErrTooEarly                      = NewHTTPError(http.StatusTooEarly)                      // HTTP 425 Too Early
+	ErrUpgradeRequired               = NewHTTPError(http.StatusUpgradeRequired)               // HTTP 426 Upgrade Required
+	ErrPreconditionRequired          = NewHTTPError(http.StatusPreconditionRequired)          // HTTP 428 Precondition Required
+	ErrTooManyRequests               = NewHTTPError(http.StatusTooManyRequests)               // HTTP 429 Too Many Requests
+	ErrRequestHeaderFieldsTooLarge   = NewHTTPError(http.StatusRequestHeaderFieldsTooLarge)   // HTTP 431 Request Header Fields Too Large
+	ErrUnavailableForLegalReasons    = NewHTTPError(http.StatusUnavailableForLegalReasons)    // HTTP 451 Unavailable For Legal Reasons
+	ErrInternalServerError           = NewHTTPError(http.StatusInternalServerError)           // HTTP 500 Internal Server Error
+	ErrNotImplemented                = NewHTTPError(http.StatusNotImplemented)                // HTTP 501 Not Implemented
+	ErrBadGateway                    = NewHTTPError(http.StatusBadGateway)                    // HTTP 502 Bad Gateway
+	ErrServiceUnavailable            = NewHTTPError(http.StatusServiceUnavailable)            // HTTP 503 Service Unavailable
+	ErrGatewayTimeout                = NewHTTPError(http.StatusGatewayTimeout)                // HTTP 504 Gateway Timeout
+	ErrHTTPVersionNotSupported       = NewHTTPError(http.StatusHTTPVersionNotSupported)       // HTTP 505 HTTP Version Not Supported
+	ErrVariantAlsoNegotiates         = NewHTTPError(http.StatusVariantAlsoNegotiates)         // HTTP 506 Variant Also Negotiates
+	ErrInsufficientStorage           = NewHTTPError(http.StatusInsufficientStorage)           // HTTP 507 Insufficient Storage
+	ErrLoopDetected                  = NewHTTPError(http.StatusLoopDetected)                  // HTTP 508 Loop Detected
+	ErrNotExtended                   = NewHTTPError(http.StatusNotExtended)                   // HTTP 510 Not Extended
+	ErrNetworkAuthenticationRequired = NewHTTPError(http.StatusNetworkAuthenticationRequired) // HTTP 511 Network Authentication Required
+
+	ErrValidatorNotRegistered = errors.New("validator not registered")
+	ErrRendererNotRegistered  = errors.New("renderer not registered")
+	ErrInvalidRedirectCode    = errors.New("invalid redirect status code")
+	ErrCookieNotFound         = errors.New("cookie not found")
+	ErrInvalidCertOrKeyType   = errors.New("invalid cert or key type, must be string or []byte")
+	ErrInvalidListenerNetwork = errors.New("invalid listener network")
 )
 
 // Error handlers