mirror of https://github.com/knative/client.git
79 lines
2.2 KiB
Go
79 lines
2.2 KiB
Go
// Copyright © 2019 The Knative Authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package errors
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import (
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"net/http"
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"strings"
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api_errors "k8s.io/apimachinery/pkg/api/errors"
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v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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func isCRDError(status api_errors.APIStatus) bool {
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for _, cause := range status.Status().Details.Causes {
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if strings.HasPrefix(cause.Message, "404") && cause.Type == v1.CauseTypeUnexpectedServerResponse {
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return true
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}
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}
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return false
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}
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func isNoRouteToHostError(err error) bool {
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return strings.Contains(err.Error(), "no route to host") || strings.Contains(err.Error(), "i/o timeout")
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}
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func isEmptyConfigError(err error) bool {
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return strings.Contains(err.Error(), "no configuration has been provided")
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}
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//Retrieves a custom error struct based on the original error APIStatus struct
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//Returns the original error struct in case it can't identify the kind of APIStatus error
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func GetError(err error) error {
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if err == nil {
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return nil
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}
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switch {
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case isEmptyConfigError(err):
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return newNoKubeConfig(err.Error())
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case isNoRouteToHostError(err):
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return newNoRouteToHost(err.Error())
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default:
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apiStatus, ok := err.(api_errors.APIStatus)
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if !ok {
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return err
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}
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if apiStatus.Status().Details == nil {
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return err
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}
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var knerr *KNError
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if isCRDError(apiStatus) {
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knerr = newInvalidCRD(apiStatus.Status().Details.Group)
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knerr.Status = apiStatus
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return knerr
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}
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return err
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}
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}
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// IsForbiddenError returns true if given error can be converted to API status and of type forbidden access else false
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func IsForbiddenError(err error) bool {
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if status, ok := err.(api_errors.APIStatus); ok {
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return status.Status().Code == int32(http.StatusForbidden)
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}
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return false
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}
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