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20 days of unstoppable work. Waiting fo go 1.8, I didn't finish yet, some touches remains.
Former-commit-id: ed84f99c89f43fe5e980a8e6d0ee22c186f0e1b9
This commit is contained in:
Gerasimos (Makis) Maropoulos
215
status.go
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215
status.go
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package iris
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import (
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"sync"
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)
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// HTTP status codes.
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const (
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StatusContinue = 100 // RFC 7231, 6.2.1
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StatusSwitchingProtocols = 101 // RFC 7231, 6.2.2
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StatusProcessing = 102 // RFC 2518, 10.1
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StatusOK = 200 // RFC 7231, 6.3.1
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StatusCreated = 201 // RFC 7231, 6.3.2
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StatusAccepted = 202 // RFC 7231, 6.3.3
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StatusNonAuthoritativeInfo = 203 // RFC 7231, 6.3.4
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StatusNoContent = 204 // RFC 7231, 6.3.5
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StatusResetContent = 205 // RFC 7231, 6.3.6
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StatusPartialContent = 206 // RFC 7233, 4.1
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StatusMultiStatus = 207 // RFC 4918, 11.1
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StatusAlreadyReported = 208 // RFC 5842, 7.1
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StatusIMUsed = 226 // RFC 3229, 10.4.1
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StatusMultipleChoices = 300 // RFC 7231, 6.4.1
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StatusMovedPermanently = 301 // RFC 7231, 6.4.2
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StatusFound = 302 // RFC 7231, 6.4.3
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StatusSeeOther = 303 // RFC 7231, 6.4.4
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StatusNotModified = 304 // RFC 7232, 4.1
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StatusUseProxy = 305 // RFC 7231, 6.4.5
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_ = 306 // RFC 7231, 6.4.6 (Unused)
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StatusTemporaryRedirect = 307 // RFC 7231, 6.4.7
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StatusPermanentRedirect = 308 // RFC 7538, 3
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StatusBadRequest = 400 // RFC 7231, 6.5.1
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StatusUnauthorized = 401 // RFC 7235, 3.1
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StatusPaymentRequired = 402 // RFC 7231, 6.5.2
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StatusForbidden = 403 // RFC 7231, 6.5.3
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StatusNotFound = 404 // RFC 7231, 6.5.4
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StatusMethodNotAllowed = 405 // RFC 7231, 6.5.5
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StatusNotAcceptable = 406 // RFC 7231, 6.5.6
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StatusProxyAuthRequired = 407 // RFC 7235, 3.2
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StatusRequestTimeout = 408 // RFC 7231, 6.5.7
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StatusConflict = 409 // RFC 7231, 6.5.8
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StatusGone = 410 // RFC 7231, 6.5.9
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StatusLengthRequired = 411 // RFC 7231, 6.5.10
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StatusPreconditionFailed = 412 // RFC 7232, 4.2
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StatusRequestEntityTooLarge = 413 // RFC 7231, 6.5.11
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StatusRequestURITooLong = 414 // RFC 7231, 6.5.12
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StatusUnsupportedMediaType = 415 // RFC 7231, 6.5.13
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StatusRequestedRangeNotSatisfiable = 416 // RFC 7233, 4.4
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StatusExpectationFailed = 417 // RFC 7231, 6.5.14
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StatusTeapot = 418 // RFC 7168, 2.3.3
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StatusUnprocessableEntity = 422 // RFC 4918, 11.2
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StatusLocked = 423 // RFC 4918, 11.3
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StatusFailedDependency = 424 // RFC 4918, 11.4
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StatusUpgradeRequired = 426 // RFC 7231, 6.5.15
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StatusPreconditionRequired = 428 // RFC 6585, 3
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StatusTooManyRequests = 429 // RFC 6585, 4
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StatusRequestHeaderFieldsTooLarge = 431 // RFC 6585, 5
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StatusUnavailableForLegalReasons = 451 // RFC 7725, 3
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StatusInternalServerError = 500 // RFC 7231, 6.6.1
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StatusNotImplemented = 501 // RFC 7231, 6.6.2
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StatusBadGateway = 502 // RFC 7231, 6.6.3
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StatusServiceUnavailable = 503 // RFC 7231, 6.6.4
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StatusGatewayTimeout = 504 // RFC 7231, 6.6.5
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StatusHTTPVersionNotSupported = 505 // RFC 7231, 6.6.6
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StatusVariantAlsoNegotiates = 506 // RFC 2295, 8.1
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StatusInsufficientStorage = 507 // RFC 4918, 11.5
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StatusLoopDetected = 508 // RFC 5842, 7.2
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StatusNotExtended = 510 // RFC 2774, 7
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StatusNetworkAuthenticationRequired = 511 // RFC 6585, 6
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)
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var statusText = map[int]string{
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StatusContinue: "Continue",
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StatusSwitchingProtocols: "Switching Protocols",
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StatusProcessing: "Processing",
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StatusOK: "OK",
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StatusCreated: "Created",
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StatusAccepted: "Accepted",
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StatusNonAuthoritativeInfo: "Non-Authoritative Information",
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StatusNoContent: "No Content",
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StatusResetContent: "Reset Content",
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StatusPartialContent: "Partial Content",
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StatusMultiStatus: "Multi-Status",
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StatusAlreadyReported: "Already Reported",
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StatusIMUsed: "IM Used",
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StatusMultipleChoices: "Multiple Choices",
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StatusMovedPermanently: "Moved Permanently",
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StatusFound: "Found",
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StatusSeeOther: "See Other",
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StatusNotModified: "Not Modified",
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StatusUseProxy: "Use Proxy",
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StatusTemporaryRedirect: "Temporary Redirect",
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StatusPermanentRedirect: "Permanent Redirect",
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StatusBadRequest: "Bad Request",
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StatusUnauthorized: "Unauthorized",
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StatusPaymentRequired: "Payment Required",
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StatusForbidden: "Forbidden",
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StatusNotFound: "Not Found",
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StatusMethodNotAllowed: "Method Not Allowed",
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StatusNotAcceptable: "Not Acceptable",
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StatusProxyAuthRequired: "Proxy Authentication Required",
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StatusRequestTimeout: "Request Timeout",
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StatusConflict: "Conflict",
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StatusGone: "Gone",
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StatusLengthRequired: "Length Required",
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StatusPreconditionFailed: "Precondition Failed",
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StatusRequestEntityTooLarge: "Request Entity Too Large",
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StatusRequestURITooLong: "Request URI Too Long",
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StatusUnsupportedMediaType: "Unsupported Media Type",
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StatusRequestedRangeNotSatisfiable: "Requested Range Not Satisfiable",
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StatusExpectationFailed: "Expectation Failed",
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StatusTeapot: "I'm a teapot",
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StatusUnprocessableEntity: "Unprocessable Entity",
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StatusLocked: "Locked",
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StatusFailedDependency: "Failed Dependency",
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StatusUpgradeRequired: "Upgrade Required",
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StatusPreconditionRequired: "Precondition Required",
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StatusTooManyRequests: "Too Many Requests",
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StatusRequestHeaderFieldsTooLarge: "Request Header Fields Too Large",
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StatusUnavailableForLegalReasons: "Unavailable For Legal Reasons",
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StatusInternalServerError: "Internal Server Error",
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StatusNotImplemented: "Not Implemented",
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StatusBadGateway: "Bad Gateway",
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StatusServiceUnavailable: "Service Unavailable",
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StatusGatewayTimeout: "Gateway Timeout",
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StatusHTTPVersionNotSupported: "HTTP Version Not Supported",
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StatusVariantAlsoNegotiates: "Variant Also Negotiates",
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StatusInsufficientStorage: "Insufficient Storage",
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StatusLoopDetected: "Loop Detected",
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StatusNotExtended: "Not Extended",
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StatusNetworkAuthenticationRequired: "Network Authentication Required",
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}
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// StatusText returns a text for the HTTP status code. It returns the empty
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// string if the code is unknown.
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func StatusText(code int) string {
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return statusText[code]
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}
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// ErrorHandlers contains all custom http errors.
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// A custom http error handler is just a handler with its status code.
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type ErrorHandlers struct {
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// Handlers the map which actually contains the errors.
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// Use the declared functions to get, set or fire an error.
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handlers map[int]Handler
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mu sync.RWMutex
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}
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// Register registers a handler to a http status
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func (e *ErrorHandlers) Register(statusCode int, handler Handler) {
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e.mu.Lock()
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if e.handlers == nil {
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e.handlers = make(map[int]Handler)
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}
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func(statusCode int, handler Handler) {
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e.handlers[statusCode] = HandlerFunc(func(ctx *Context) {
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if w, ok := ctx.IsRecording(); ok {
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w.Reset()
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}
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ctx.SetStatusCode(statusCode)
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handler.Serve(ctx)
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})
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}(statusCode, handler)
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e.mu.Unlock()
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}
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// Get returns the handler which is responsible for
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// this 'statusCode' http error.
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func (e *ErrorHandlers) Get(statusCode int) Handler {
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e.mu.RLock()
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h := e.handlers[statusCode]
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e.mu.RUnlock()
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if h == nil {
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return nil
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}
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return h
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}
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// GetOrRegister trys to return the handler which is responsible
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// for the 'statusCode', if it was nil then it creates
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// a new one, registers that to the error list and returns that.
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func (e *ErrorHandlers) GetOrRegister(statusCode int) Handler {
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h := e.Get(statusCode)
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if h == nil {
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// create a new one
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h = HandlerFunc(func(ctx *Context) {
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if w, ok := ctx.IsRecording(); ok {
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w.Reset()
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}
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ctx.SetStatusCode(statusCode)
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if _, err := ctx.WriteString(statusText[statusCode]); err != nil {
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ctx.Log(DevMode, "error from a pre-defined error handler while trying to send an http error: %s",
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err.Error())
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}
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})
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e.mu.Lock()
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e.handlers[statusCode] = h
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e.mu.Unlock()
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}
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return h
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}
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// Fire fires an error based on the `statusCode`
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func (e *ErrorHandlers) Fire(statusCode int, ctx *Context) {
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h := e.GetOrRegister(statusCode)
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h.Serve(ctx)
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}
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