1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//
// File contains Modify functionality
//
// https://tools.ietf.org/html/rfc4511
//
// ModifyRequest ::= [APPLICATION 6] SEQUENCE {
// object LDAPDN,
// changes SEQUENCE OF change SEQUENCE {
// operation ENUMERATED {
// add (0),
// delete (1),
// replace (2),
// ... },
// modification PartialAttribute } }
//
// PartialAttribute ::= SEQUENCE {
// type AttributeDescription,
// vals SET OF value AttributeValue }
//
// AttributeDescription ::= LDAPString
// -- Constrained to <attributedescription>
// -- [RFC4512]
//
// AttributeValue ::= OCTET STRING
//
package ldap
import (
"errors"
"log"
"github.com/nmcclain/asn1-ber"
)
const (
AddAttribute = 0
DeleteAttribute = 1
ReplaceAttribute = 2
)
var LDAPModifyAttributeMap = map[uint64]string{
AddAttribute: "Add",
DeleteAttribute: "Delete",
ReplaceAttribute: "Replace",
}
type PartialAttribute struct {
attrType string
attrVals []string
}
func (p *PartialAttribute) encode() *ber.Packet {
seq := ber.Encode(ber.ClassUniversal, ber.TypeConstructed, ber.TagSequence, nil, "PartialAttribute")
seq.AppendChild(ber.NewString(ber.ClassUniversal, ber.TypePrimitive, ber.TagOctetString, p.attrType, "Type"))
set := ber.Encode(ber.ClassUniversal, ber.TypeConstructed, ber.TagSet, nil, "AttributeValue")
for _, value := range p.attrVals {
set.AppendChild(ber.NewString(ber.ClassUniversal, ber.TypePrimitive, ber.TagOctetString, value, "Vals"))
}
seq.AppendChild(set)
return seq
}
type ModifyRequest struct {
dn string
addAttributes []PartialAttribute
deleteAttributes []PartialAttribute
replaceAttributes []PartialAttribute
}
func (m *ModifyRequest) Add(attrType string, attrVals []string) {
m.addAttributes = append(m.addAttributes, PartialAttribute{attrType: attrType, attrVals: attrVals})
}
func (m *ModifyRequest) Delete(attrType string, attrVals []string) {
m.deleteAttributes = append(m.deleteAttributes, PartialAttribute{attrType: attrType, attrVals: attrVals})
}
func (m *ModifyRequest) Replace(attrType string, attrVals []string) {
m.replaceAttributes = append(m.replaceAttributes, PartialAttribute{attrType: attrType, attrVals: attrVals})
}
func (m ModifyRequest) encode() *ber.Packet {
request := ber.Encode(ber.ClassApplication, ber.TypeConstructed, ApplicationModifyRequest, nil, "Modify Request")
request.AppendChild(ber.NewString(ber.ClassUniversal, ber.TypePrimitive, ber.TagOctetString, m.dn, "DN"))
changes := ber.Encode(ber.ClassUniversal, ber.TypeConstructed, ber.TagSequence, nil, "Changes")
for _, attribute := range m.addAttributes {
change := ber.Encode(ber.ClassUniversal, ber.TypeConstructed, ber.TagSequence, nil, "Change")
change.AppendChild(ber.NewInteger(ber.ClassUniversal, ber.TypePrimitive, ber.TagEnumerated, uint64(AddAttribute), "Operation"))
change.AppendChild(attribute.encode())
changes.AppendChild(change)
}
for _, attribute := range m.deleteAttributes {
change := ber.Encode(ber.ClassUniversal, ber.TypeConstructed, ber.TagSequence, nil, "Change")
change.AppendChild(ber.NewInteger(ber.ClassUniversal, ber.TypePrimitive, ber.TagEnumerated, uint64(DeleteAttribute), "Operation"))
change.AppendChild(attribute.encode())
changes.AppendChild(change)
}
for _, attribute := range m.replaceAttributes {
change := ber.Encode(ber.ClassUniversal, ber.TypeConstructed, ber.TagSequence, nil, "Change")
change.AppendChild(ber.NewInteger(ber.ClassUniversal, ber.TypePrimitive, ber.TagEnumerated, uint64(ReplaceAttribute), "Operation"))
change.AppendChild(attribute.encode())
changes.AppendChild(change)
}
request.AppendChild(changes)
return request
}
func NewModifyRequest(
dn string,
) *ModifyRequest {
return &ModifyRequest{
dn: dn,
}
}
func (l *Conn) Modify(modifyRequest *ModifyRequest) error {
messageID := l.nextMessageID()
packet := ber.Encode(ber.ClassUniversal, ber.TypeConstructed, ber.TagSequence, nil, "LDAP Request")
packet.AppendChild(ber.NewInteger(ber.ClassUniversal, ber.TypePrimitive, ber.TagInteger, messageID, "MessageID"))
packet.AppendChild(modifyRequest.encode())
l.Debug.PrintPacket(packet)
channel, err := l.sendMessage(packet)
if err != nil {
return err
}
if channel == nil {
return NewError(ErrorNetwork, errors.New("ldap: could not send message"))
}
defer l.finishMessage(messageID)
l.Debug.Printf("%d: waiting for response", messageID)
packet = <-channel
l.Debug.Printf("%d: got response %p", messageID, packet)
if packet == nil {
return NewError(ErrorNetwork, errors.New("ldap: could not retrieve message"))
}
if l.Debug {
if err := addLDAPDescriptions(packet); err != nil {
return err
}
ber.PrintPacket(packet)
}
if packet.Children[1].Tag == ApplicationModifyResponse {
resultCode, resultDescription := getLDAPResultCode(packet)
if resultCode != 0 {
return NewError(resultCode, errors.New(resultDescription))
}
} else {
log.Printf("Unexpected Response: %d", packet.Children[1].Tag)
}
l.Debug.Printf("%d: returning", messageID)
return nil
}
|
