Matthias Andreas Benkard | 832a54e | 2019-01-29 09:27:38 +0100 | [diff] [blame] | 1 | /* |
| 2 | Copyright 2014 The Kubernetes Authors. |
| 3 | |
| 4 | Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | you may not use this file except in compliance with the License. |
| 6 | You may obtain a copy of the License at |
| 7 | |
| 8 | http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | |
| 10 | Unless required by applicable law or agreed to in writing, software |
| 11 | distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | See the License for the specific language governing permissions and |
| 14 | limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package responsewriters |
| 18 | |
| 19 | import ( |
| 20 | "fmt" |
| 21 | "net/http" |
| 22 | |
| 23 | metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| 24 | "k8s.io/apimachinery/pkg/util/runtime" |
| 25 | "k8s.io/apiserver/pkg/storage" |
| 26 | ) |
| 27 | |
| 28 | // statusError is an object that can be converted into an metav1.Status |
| 29 | type statusError interface { |
| 30 | Status() metav1.Status |
| 31 | } |
| 32 | |
| 33 | // ErrorToAPIStatus converts an error to an metav1.Status object. |
| 34 | func ErrorToAPIStatus(err error) *metav1.Status { |
| 35 | switch t := err.(type) { |
| 36 | case statusError: |
| 37 | status := t.Status() |
| 38 | if len(status.Status) == 0 { |
| 39 | status.Status = metav1.StatusFailure |
| 40 | } |
| 41 | if status.Code == 0 { |
| 42 | switch status.Status { |
| 43 | case metav1.StatusSuccess: |
| 44 | status.Code = http.StatusOK |
| 45 | case metav1.StatusFailure: |
| 46 | status.Code = http.StatusInternalServerError |
| 47 | } |
| 48 | } |
| 49 | status.Kind = "Status" |
| 50 | status.APIVersion = "v1" |
| 51 | //TODO: check for invalid responses |
| 52 | return &status |
| 53 | default: |
| 54 | status := http.StatusInternalServerError |
| 55 | switch { |
| 56 | //TODO: replace me with NewConflictErr |
| 57 | case storage.IsConflict(err): |
| 58 | status = http.StatusConflict |
| 59 | } |
| 60 | // Log errors that were not converted to an error status |
| 61 | // by REST storage - these typically indicate programmer |
| 62 | // error by not using pkg/api/errors, or unexpected failure |
| 63 | // cases. |
| 64 | runtime.HandleError(fmt.Errorf("apiserver received an error that is not an metav1.Status: %#+v", err)) |
| 65 | return &metav1.Status{ |
| 66 | TypeMeta: metav1.TypeMeta{ |
| 67 | Kind: "Status", |
| 68 | APIVersion: "v1", |
| 69 | }, |
| 70 | Status: metav1.StatusFailure, |
| 71 | Code: int32(status), |
| 72 | Reason: metav1.StatusReasonUnknown, |
| 73 | Message: err.Error(), |
| 74 | } |
| 75 | } |
| 76 | } |