mirror of https://github.com/k3s-io/k3s
142 lines
4.0 KiB
Go
Executable File
142 lines
4.0 KiB
Go
Executable File
/*
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Copyright 2014 The Kubernetes Authors.
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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 apiserver
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import (
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"fmt"
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"net/http"
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"strings"
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metav1 "k8s.io/kubernetes/pkg/apis/meta/v1"
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"k8s.io/kubernetes/pkg/storage"
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"k8s.io/kubernetes/pkg/util/runtime"
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)
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// statusError is an object that can be converted into an metav1.Status
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type statusError interface {
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Status() metav1.Status
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}
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// errToAPIStatus converts an error to an metav1.Status object.
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func errToAPIStatus(err error) *metav1.Status {
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switch t := err.(type) {
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case statusError:
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status := t.Status()
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if len(status.Status) == 0 {
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status.Status = metav1.StatusFailure
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}
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if status.Code == 0 {
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switch status.Status {
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case metav1.StatusSuccess:
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status.Code = http.StatusOK
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case metav1.StatusFailure:
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status.Code = http.StatusInternalServerError
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}
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}
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//TODO: check for invalid responses
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return &status
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default:
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status := http.StatusInternalServerError
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switch {
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//TODO: replace me with NewConflictErr
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case storage.IsTestFailed(err):
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status = http.StatusConflict
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}
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// Log errors that were not converted to an error status
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// by REST storage - these typically indicate programmer
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// error by not using pkg/api/errors, or unexpected failure
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// cases.
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runtime.HandleError(fmt.Errorf("apiserver received an error that is not an metav1.Status: %v", err))
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return &metav1.Status{
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Status: metav1.StatusFailure,
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Code: int32(status),
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Reason: metav1.StatusReasonUnknown,
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Message: err.Error(),
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}
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}
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}
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// notFound renders a simple not found error.
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func notFound(w http.ResponseWriter, req *http.Request) {
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w.WriteHeader(http.StatusNotFound)
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fmt.Fprintf(w, "Not Found: %#v", req.RequestURI)
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}
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// internalError renders a simple internal error
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func internalError(w http.ResponseWriter, req *http.Request, err error) {
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w.WriteHeader(http.StatusInternalServerError)
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fmt.Fprintf(w, "Internal Server Error: %#v", req.RequestURI)
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runtime.HandleError(err)
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}
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// errAPIPrefixNotFound indicates that a RequestInfo resolution failed because the request isn't under
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// any known API prefixes
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type errAPIPrefixNotFound struct {
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SpecifiedPrefix string
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}
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func (e *errAPIPrefixNotFound) Error() string {
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return fmt.Sprintf("no valid API prefix found matching %v", e.SpecifiedPrefix)
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}
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func IsAPIPrefixNotFound(err error) bool {
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if err == nil {
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return false
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}
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_, ok := err.(*errAPIPrefixNotFound)
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return ok
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}
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// errNotAcceptable indicates Accept negotiation has failed
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// TODO: move to api/errors if other code needs to return this
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type errNotAcceptable struct {
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accepted []string
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}
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func (e errNotAcceptable) Error() string {
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return fmt.Sprintf("only the following media types are accepted: %v", strings.Join(e.accepted, ", "))
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}
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func (e errNotAcceptable) Status() metav1.Status {
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return metav1.Status{
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Status: metav1.StatusFailure,
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Code: http.StatusNotAcceptable,
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Reason: metav1.StatusReason("NotAcceptable"),
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Message: e.Error(),
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}
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}
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// errUnsupportedMediaType indicates Content-Type is not recognized
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// TODO: move to api/errors if other code needs to return this
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type errUnsupportedMediaType struct {
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accepted []string
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}
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func (e errUnsupportedMediaType) Error() string {
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return fmt.Sprintf("the body of the request was in an unknown format - accepted media types include: %v", strings.Join(e.accepted, ", "))
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}
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func (e errUnsupportedMediaType) Status() metav1.Status {
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return metav1.Status{
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Status: metav1.StatusFailure,
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Code: http.StatusUnsupportedMediaType,
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Reason: metav1.StatusReason("UnsupportedMediaType"),
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Message: e.Error(),
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}
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}
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