68 lines
2.2 KiB
Go
68 lines
2.2 KiB
Go
/*
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Copyright 2015 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 path
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import (
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"fmt"
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"strings"
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)
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// NameMayNotBe specifies strings that cannot be used as names specified as path segments (like the REST API or etcd store)
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var NameMayNotBe = []string{".", ".."}
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// NameMayNotContain specifies substrings that cannot be used in names specified as path segments (like the REST API or etcd store)
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var NameMayNotContain = []string{"/", "%"}
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// IsValidPathSegmentName validates the name can be safely encoded as a path segment
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func IsValidPathSegmentName(name string) []string {
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for _, illegalName := range NameMayNotBe {
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if name == illegalName {
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return []string{fmt.Sprintf(`may not be '%s'`, illegalName)}
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}
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}
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var errors []string
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for _, illegalContent := range NameMayNotContain {
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if strings.Contains(name, illegalContent) {
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errors = append(errors, fmt.Sprintf(`may not contain '%s'`, illegalContent))
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}
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}
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return errors
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}
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// IsValidPathSegmentPrefix validates the name can be used as a prefix for a name which will be encoded as a path segment
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// It does not check for exact matches with disallowed names, since an arbitrary suffix might make the name valid
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func IsValidPathSegmentPrefix(name string) []string {
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var errors []string
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for _, illegalContent := range NameMayNotContain {
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if strings.Contains(name, illegalContent) {
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errors = append(errors, fmt.Sprintf(`may not contain '%s'`, illegalContent))
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}
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}
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return errors
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}
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// ValidatePathSegmentName validates the name can be safely encoded as a path segment
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func ValidatePathSegmentName(name string, prefix bool) []string {
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if prefix {
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return IsValidPathSegmentPrefix(name)
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} else {
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return IsValidPathSegmentName(name)
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}
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}
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