Matthias Andreas Benkard | 832a54e | 2019-01-29 09:27:38 +0100 | [diff] [blame] | 1 | /* |
| 2 | Copyright 2016 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 flag |
| 18 | |
| 19 | import ( |
| 20 | "errors" |
| 21 | "flag" |
| 22 | "strings" |
| 23 | ) |
| 24 | |
| 25 | // NamedCertKey is a flag value parsing "certfile,keyfile" and "certfile,keyfile:name,name,name". |
| 26 | type NamedCertKey struct { |
| 27 | Names []string |
| 28 | CertFile, KeyFile string |
| 29 | } |
| 30 | |
| 31 | var _ flag.Value = &NamedCertKey{} |
| 32 | |
| 33 | func (nkc *NamedCertKey) String() string { |
| 34 | s := nkc.CertFile + "," + nkc.KeyFile |
| 35 | if len(nkc.Names) > 0 { |
| 36 | s = s + ":" + strings.Join(nkc.Names, ",") |
| 37 | } |
| 38 | return s |
| 39 | } |
| 40 | |
| 41 | func (nkc *NamedCertKey) Set(value string) error { |
| 42 | cs := strings.SplitN(value, ":", 2) |
| 43 | var keycert string |
| 44 | if len(cs) == 2 { |
| 45 | var names string |
| 46 | keycert, names = strings.TrimSpace(cs[0]), strings.TrimSpace(cs[1]) |
| 47 | if names == "" { |
| 48 | return errors.New("empty names list is not allowed") |
| 49 | } |
| 50 | nkc.Names = nil |
| 51 | for _, name := range strings.Split(names, ",") { |
| 52 | nkc.Names = append(nkc.Names, strings.TrimSpace(name)) |
| 53 | } |
| 54 | } else { |
| 55 | nkc.Names = nil |
| 56 | keycert = strings.TrimSpace(cs[0]) |
| 57 | } |
| 58 | cs = strings.Split(keycert, ",") |
| 59 | if len(cs) != 2 { |
| 60 | return errors.New("expected comma separated certificate and key file paths") |
| 61 | } |
| 62 | nkc.CertFile = strings.TrimSpace(cs[0]) |
| 63 | nkc.KeyFile = strings.TrimSpace(cs[1]) |
| 64 | return nil |
| 65 | } |
| 66 | |
| 67 | func (*NamedCertKey) Type() string { |
| 68 | return "namedCertKey" |
| 69 | } |
| 70 | |
| 71 | // NamedCertKeyArray is a flag value parsing NamedCertKeys, each passed with its own |
| 72 | // flag instance (in contrast to comma separated slices). |
| 73 | type NamedCertKeyArray struct { |
| 74 | value *[]NamedCertKey |
| 75 | changed bool |
| 76 | } |
| 77 | |
| 78 | var _ flag.Value = &NamedCertKey{} |
| 79 | |
| 80 | // NewNamedKeyCertArray creates a new NamedCertKeyArray with the internal value |
| 81 | // pointing to p. |
| 82 | func NewNamedCertKeyArray(p *[]NamedCertKey) *NamedCertKeyArray { |
| 83 | return &NamedCertKeyArray{ |
| 84 | value: p, |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | func (a *NamedCertKeyArray) Set(val string) error { |
| 89 | nkc := NamedCertKey{} |
| 90 | err := nkc.Set(val) |
| 91 | if err != nil { |
| 92 | return err |
| 93 | } |
| 94 | if !a.changed { |
| 95 | *a.value = []NamedCertKey{nkc} |
| 96 | a.changed = true |
| 97 | } else { |
| 98 | *a.value = append(*a.value, nkc) |
| 99 | } |
| 100 | return nil |
| 101 | } |
| 102 | |
| 103 | func (a *NamedCertKeyArray) Type() string { |
| 104 | return "namedCertKey" |
| 105 | } |
| 106 | |
| 107 | func (a *NamedCertKeyArray) String() string { |
| 108 | nkcs := make([]string, 0, len(*a.value)) |
| 109 | for i := range *a.value { |
| 110 | nkcs = append(nkcs, (*a.value)[i].String()) |
| 111 | } |
| 112 | return "[" + strings.Join(nkcs, ";") + "]" |
| 113 | } |