-
Notifications
You must be signed in to change notification settings - Fork 0
/
mapping-rule.go
171 lines (155 loc) · 5.23 KB
/
mapping-rule.go
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
163
164
165
166
167
168
169
170
171
/*
* Copyright (c) 2019-2021. Abstrium SAS <team (at) pydio.com>
* This file is part of Pydio Cells.
*
* Pydio Cells is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Pydio Cells is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Pydio Cells. If not, see <http://www.gnu.org/licenses/>.
*
* The latest code can be found at <https://pydio.com>.
*/
package auth
import (
"regexp"
"strings"
)
type MappingRule struct {
RuleName string
// Left Attribute is attribute of external user (ldap, sql, api ...)
// For example: displayName, mail, memberOf
LeftAttribute string
// Right Attribute is attribute of standard user
// For example: displayName, email
// Two reserved attributes: Roles, GroupPath
RightAttribute string
// Attribute value type: single value or multiple values
// MultipleValueRightAttr bool `json:"MultipleValueRightAttr"`
// Rule string define an acceptable list of right value
// It can be:
// * Empty
// * A list of accepted values separated by comma , . For example: teacher,researcher,employee
// * preg string
RuleString string
// RolePrefix
// AuthSourceName_Prefix_RoleID
RolePrefix string
}
// IsDnFormat simply checks if the passed string is valid. See: https://www.ietf.org/rfc/rfc2253.txt
func (m MappingRule) IsDnFormat(str string) bool {
RegExp := `^(?:[A-Za-z][\w-]*|\d+(?:\.\d+)*)=(?:#(?:[\dA-Fa-f]{2})+|(?:[^,=\+<>#;\\"]|\\[,=\+<>#;\\"]|\\[\dA-Fa-f]{2})*|"(?:[^\\"]|\\[,=\+<>#;\\"]|\\[\dA-Fa-f]{2})*")(?:\+(?:[A-Za-z][\w-]*|\d+(?:\.\d+)*)=(?:#(?:[\dA-Fa-f]{2})+|(?:[^,=\+<>#;\\"]|\\[,=\+<>#;\\"]|\\[\dA-Fa-f]{2})*|"(?:[^\\"]|\\[,=\+<>#;\\"]|\\[\dA-Fa-f]{2})*"))*(?:,(?:[A-Za-z][\w-]*|\d+(?:\.\d+)*)=(?:#(?:[\dA-Fa-f]{2})+|(?:[^,=\+<>#;\\"]|\\[,=\+<>#;\\"]|\\[\dA-Fa-f]{2})*|"(?:[^\\"]|\\[,=\+<>#;\\"]|\\[\dA-Fa-f]{2})*")(?:\+(?:[A-Za-z][\w-]*|\d+(?:\.\d+)*)=(?:#(?:[\dA-Fa-f]{2})+|(?:[^,=\+<>#;\\"]|\\[,=\+<>#;\\"]|\\[\dA-Fa-f]{2})*|"(?:[^\\"]|\\[,=\+<>#;\\"]|\\[\dA-Fa-f]{2})*"))*)*$`
ok, err := regexp.MatchString(RegExp, str)
if err != nil {
return false
}
return ok
}
func (m MappingRule) SanitizeValues(strs []string) []string {
if len(strs) > 0 {
str := []string{}
for _, s := range strs {
str = append(str, strings.TrimSpace(s))
}
return str
}
return strs
}
// RemoveLdapEscape remove LDAP escape characters but except '\,'.
func (m MappingRule) RemoveLdapEscape(strs []string) []string {
if len(strs) > 0 {
str := []string{}
for _, s := range strs {
replacer := strings.NewReplacer(`\=`, "=", `\+`, "=", `\<`, "<", `\>`, ">", `\#`, "#", `\;`, ";")
str = append(str, replacer.Replace(s))
}
return str
}
return strs
}
// ConvertDNtoName tries to extract value from distinguishedName
// For example:
// member: uid=user01,dc=com,dc=fr
// member: uid=user02,dc=com,dc=fr
// member: uid=user03,dc=com,dc=fr
// return an array like:
// user01
// user02
// user03
func (m MappingRule) ConvertDNtoName(strs []string) []string {
if len(strs) > 0 {
str := []string{}
for _, s := range strs {
// https://www.ietf.org/rfc/rfc2253.txt defines '#' as a special character
// However, openldap use # as normal character.
// So the IsDnFormat does not work properly.
newS := strings.NewReplacer("#", "[UOO01]").Replace(s)
if m.IsDnFormat(newS) {
replacer := strings.NewReplacer(`\,`, "[U0000]")
reverseReplacer := strings.NewReplacer("[U0000]", `\,`)
rl := replacer.Replace(newS)
rlarr := strings.Split(rl, ",")
if len(rlarr) > 0 {
firstRDN := rlarr[0]
firstRDNright := strings.Split(firstRDN, "=")[1]
str = append(str, strings.NewReplacer("[UOO01]", "#").Replace(reverseReplacer.Replace(firstRDNright)))
}
} else {
str = append(str, strings.NewReplacer("[UOO01]", "#").Replace(newS))
}
}
return str
}
return strs
}
func (m MappingRule) AddPrefix(prefix string, strs []string) []string {
if len(strs) > 0 && prefix != "" {
str := []string{}
for _, s := range strs {
str = append(str, prefix+s)
}
return str
}
return strs
}
func (m MappingRule) FilterPreg(preg string, strs []string) []string {
if len(strs) > 0 && preg != "" {
str := []string{}
defaultPrefix := "^preg:*"
// Test format of preg. Should be preg:xxxx
matched, err := regexp.MatchString(defaultPrefix, preg)
if matched && err == nil {
r := strings.NewReplacer("preg:", "")
ruleString := r.Replace(preg)
for _, s := range strs {
matched, _ := regexp.MatchString(ruleString, s)
if matched {
str = append(str, s)
}
}
return str
}
}
return strs
}
func (m MappingRule) FilterList(list []string, strs []string) []string {
if len(list) > 0 && len(strs) > 0 {
intersectionList := []string{}
for _, l := range list {
for _, s := range strs {
if l == s {
intersectionList = append(intersectionList, s)
}
}
}
return intersectionList
}
return strs
}