forked from hashicorp/vault
-
Notifications
You must be signed in to change notification settings - Fork 0
/
path_login.go
165 lines (137 loc) · 4.4 KB
/
path_login.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
package radius
import (
"fmt"
"net"
"strconv"
"strings"
"time"
"layeh.com/radius"
"github.com/hashicorp/vault/helper/policyutil"
"github.com/hashicorp/vault/logical"
"github.com/hashicorp/vault/logical/framework"
)
func pathLogin(b *backend) *framework.Path {
return &framework.Path{
Pattern: "login" + framework.OptionalParamRegex("urlusername"),
Fields: map[string]*framework.FieldSchema{
"urlusername": &framework.FieldSchema{
Type: framework.TypeString,
Description: "Username to be used for login. (URL parameter)",
},
"username": &framework.FieldSchema{
Type: framework.TypeString,
Description: "Username to be used for login. (POST request body)",
},
"password": &framework.FieldSchema{
Type: framework.TypeString,
Description: "Password for this user.",
},
},
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.UpdateOperation: b.pathLogin,
},
HelpSynopsis: pathLoginSyn,
HelpDescription: pathLoginDesc,
}
}
func (b *backend) pathLogin(
req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
username := d.Get("username").(string)
password := d.Get("password").(string)
if username == "" {
username = d.Get("urlusername").(string)
if username == "" {
return logical.ErrorResponse("username cannot be emtpy"), nil
}
}
if password == "" {
return logical.ErrorResponse("password cannot be emtpy"), nil
}
policies, resp, err := b.RadiusLogin(req, username, password)
// Handle an internal error
if err != nil {
return nil, err
}
if resp != nil {
// Handle a logical error
if resp.IsError() {
return resp, nil
}
}
resp.Auth = &logical.Auth{
Policies: policies,
Metadata: map[string]string{
"username": username,
"policies": strings.Join(policies, ","),
},
InternalData: map[string]interface{}{
"password": password,
},
DisplayName: username,
LeaseOptions: logical.LeaseOptions{
Renewable: true,
},
}
return resp, nil
}
func (b *backend) pathLoginRenew(
req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
var err error
username := req.Auth.Metadata["username"]
password := req.Auth.InternalData["password"].(string)
var resp *logical.Response
var loginPolicies []string
loginPolicies, resp, err = b.RadiusLogin(req, username, password)
if err != nil || (resp != nil && resp.IsError()) {
return resp, err
}
if !policyutil.EquivalentPolicies(loginPolicies, req.Auth.Policies) {
return nil, fmt.Errorf("policies have changed, not renewing")
}
return framework.LeaseExtend(0, 0, b.System())(req, d)
}
func (b *backend) RadiusLogin(req *logical.Request, username string, password string) ([]string, *logical.Response, error) {
cfg, err := b.Config(req)
if err != nil {
return nil, nil, err
}
if cfg == nil || cfg.Host == "" || cfg.Secret == "" {
return nil, logical.ErrorResponse("radius backend not configured"), nil
}
hostport := net.JoinHostPort(cfg.Host, strconv.Itoa(cfg.Port))
packet := radius.New(radius.CodeAccessRequest, []byte(cfg.Secret))
packet.Add("User-Name", username)
packet.Add("User-Password", password)
packet.Add("NAS-Port", uint32(cfg.NasPort))
client := radius.Client{
DialTimeout: time.Duration(cfg.DialTimeout) * time.Second,
ReadTimeout: time.Duration(cfg.ReadTimeout) * time.Second,
}
received, err := client.Exchange(packet, hostport)
if err != nil {
return nil, logical.ErrorResponse(err.Error()), nil
}
if received.Code != radius.CodeAccessAccept {
return nil, logical.ErrorResponse("access denied by the authentication server"), nil
}
var policies []string
// Retrieve user entry from storage
user, err := b.user(req.Storage, username)
if user == nil {
// No user found, check if unregistered users are allowed (unregistered_user_policies not empty)
if len(policyutil.SanitizePolicies(cfg.UnregisteredUserPolicies, false)) == 0 {
return nil, logical.ErrorResponse("authentication succeeded but user has no associated policies"), nil
}
policies = policyutil.SanitizePolicies(cfg.UnregisteredUserPolicies, true)
} else {
policies = policyutil.SanitizePolicies(user.Policies, true)
}
return policies, &logical.Response{}, nil
}
const pathLoginSyn = `
Log in with a username and password.
`
const pathLoginDesc = `
This endpoint authenticates using a username and password. Please be sure to
read the note on escaping from the path-help for the 'config' endpoint.
`