mirror of https://github.com/k3s-io/k3s
71 lines
2.1 KiB
Go
71 lines
2.1 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package rest
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import (
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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"k8s.io/kubernetes/pkg/api/errors"
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)
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// Check the http error status from a location URL.
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// And convert an error into a structured API object.
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// Finally ensure we close the body before returning the error
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type HttpResponseChecker interface {
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Check(resp *http.Response) error
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}
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// Max length read from the response body of a location which returns error status
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const (
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maxReadLength = 50000
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)
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// A generic http response checker to transform the error.
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type GenericHttpResponseChecker struct {
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Kind string
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Name string
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}
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func (checker GenericHttpResponseChecker) Check(resp *http.Response) error {
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if resp.StatusCode < http.StatusOK || resp.StatusCode > http.StatusPartialContent {
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defer resp.Body.Close()
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bodyBytes, err := ioutil.ReadAll(io.LimitReader(resp.Body, maxReadLength))
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if err != nil {
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return errors.NewInternalError(err)
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}
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bodyText := string(bodyBytes)
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switch {
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case resp.StatusCode == http.StatusInternalServerError:
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return errors.NewInternalError(fmt.Errorf("%s", bodyText))
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case resp.StatusCode == http.StatusBadRequest:
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return errors.NewBadRequest(bodyText)
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case resp.StatusCode == http.StatusNotFound:
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return errors.NewGenericServerResponse(resp.StatusCode, "", checker.Kind, checker.Name, bodyText, 0, false)
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}
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return errors.NewGenericServerResponse(resp.StatusCode, "", checker.Kind, checker.Name, bodyText, 0, false)
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}
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return nil
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}
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func NewGenericHttpResponseChecker(kind, name string) GenericHttpResponseChecker {
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return GenericHttpResponseChecker{Kind: kind, Name: name}
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}
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