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93 lines
2.2 KiB
93 lines
2.2 KiB
// Copyright 2015 The Tango Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package tango
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import (
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"fmt"
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"net/http"
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)
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// AbortError defines an interface to describe HTTP error
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type AbortError interface {
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error
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Code() int
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}
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type abortError struct {
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code int
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content string
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}
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func (a *abortError) Code() int {
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return a.code
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}
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func (a *abortError) Error() string {
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return fmt.Sprintf("%v", a.content)
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}
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// Abort returns an AbortError
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func Abort(code int, content ...string) AbortError {
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if len(content) >= 1 {
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return &abortError{code, content[0]}
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}
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return &abortError{code, http.StatusText(code)}
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}
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// NotFound returns not found HTTP error
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func NotFound(content ...string) AbortError {
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return Abort(http.StatusNotFound, content...)
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}
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// NotSupported returns not supported HTTP error
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func NotSupported(content ...string) AbortError {
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return Abort(http.StatusMethodNotAllowed, content...)
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}
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// InternalServerError returns internal server HTTP error
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func InternalServerError(content ...string) AbortError {
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return Abort(http.StatusInternalServerError, content...)
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}
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// Forbidden returns forbidden HTTP error
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func Forbidden(content ...string) AbortError {
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return Abort(http.StatusForbidden, content...)
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}
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// Unauthorized returns unauthorized HTTP error
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func Unauthorized(content ...string) AbortError {
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return Abort(http.StatusUnauthorized, content...)
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}
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// Errors returns default errorhandler, you can use your self handler
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func Errors() HandlerFunc {
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return func(ctx *Context) {
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switch res := ctx.Result.(type) {
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case AbortError:
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ctx.WriteHeader(res.Code())
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ctx.WriteString(res.Error())
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case error:
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ctx.WriteHeader(http.StatusInternalServerError)
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ctx.WriteString(res.Error())
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default:
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ctx.WriteHeader(http.StatusInternalServerError)
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ctx.WriteString(http.StatusText(http.StatusInternalServerError))
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}
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}
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}
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// ErrorWithCode descripts an error that with error code
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type ErrorWithCode interface {
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error
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ErrorCode() int
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}
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type ErrorKeyIsNotExist struct {
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Key string
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}
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func (e ErrorKeyIsNotExist) Error() string {
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return fmt.Sprintf("Key %s is not exist", e.Key)
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}
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