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/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package flag
import (
"errors"
"flag"
"strings"
)
// NamedCertKey is a flag value parsing "certfile,keyfile" and "certfile,keyfile:name,name,name".
type NamedCertKey struct {
Names []string
CertFile, KeyFile string
}
var _ flag.Value = &NamedCertKey{}
func (nkc *NamedCertKey) String() string {
s := nkc.CertFile + "," + nkc.KeyFile
if len(nkc.Names) > 0 {
s = s + ":" + strings.Join(nkc.Names, ",")
}
return s
}
func (nkc *NamedCertKey) Set(value string) error {
cs := strings.SplitN(value, ":", 2)
var keycert string
if len(cs) == 2 {
var names string
keycert, names = strings.TrimSpace(cs[0]), strings.TrimSpace(cs[1])
if names == "" {
return errors.New("empty names list is not allowed")
}
nkc.Names = nil
for _, name := range strings.Split(names, ",") {
nkc.Names = append(nkc.Names, strings.TrimSpace(name))
}
} else {
nkc.Names = nil
keycert = strings.TrimSpace(cs[0])
}
cs = strings.Split(keycert, ",")
if len(cs) != 2 {
return errors.New("expected comma separated certificate and key file paths")
}
nkc.CertFile = strings.TrimSpace(cs[0])
nkc.KeyFile = strings.TrimSpace(cs[1])
return nil
}
func (*NamedCertKey) Type() string {
return "namedCertKey"
}
// NamedCertKeyArray is a flag value parsing NamedCertKeys, each passed with its own
// flag instance (in contrast to comma separated slices).
type NamedCertKeyArray struct {
value *[]NamedCertKey
changed bool
}
var _ flag.Value = &NamedCertKey{}
// NewNamedKeyCertArray creates a new NamedCertKeyArray with the internal value
// pointing to p.
func NewNamedCertKeyArray(p *[]NamedCertKey) *NamedCertKeyArray {
return &NamedCertKeyArray{
value: p,
}
}
func (a *NamedCertKeyArray) Set(val string) error {
nkc := NamedCertKey{}
err := nkc.Set(val)
if err != nil {
return err
}
if !a.changed {
*a.value = []NamedCertKey{nkc}
a.changed = true
} else {
*a.value = append(*a.value, nkc)
}
return nil
}
func (a *NamedCertKeyArray) Type() string {
return "namedCertKey"
}
func (a *NamedCertKeyArray) String() string {
nkcs := make([]string, 0, len(*a.value))
for i := range *a.value {
nkcs = append(nkcs, (*a.value)[i].String())
}
return "[" + strings.Join(nkcs, ";") + "]"
}
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