-
Notifications
You must be signed in to change notification settings - Fork 0
/
server.go
245 lines (198 loc) · 6.44 KB
/
server.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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
package tokens
import (
"context"
"fmt"
"github.com/rancher/rancher/pkg/randomtoken"
"github.com/rancher/types/apis/management.cattle.io/v3"
"github.com/rancher/types/config"
"github.com/sirupsen/logrus"
"k8s.io/apimachinery/pkg/api/errors"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/client-go/tools/cache"
)
// TODO Cleanup error logging. If error is being returned, use errors.wrap to return and dont log here
const (
userPrincipalIndex = "authn.management.cattle.io/user-principal-index"
UserIDLabel = "authn.management.cattle.io/token-userId"
tokenKeyIndex = "authn.management.cattle.io/token-key-index"
)
type tokenAPIServer struct {
ctx context.Context
tokensClient v3.TokenInterface
userIndexer cache.Indexer
tokenIndexer cache.Indexer
}
var tokenServer *tokenAPIServer
func userPrincipalIndexer(obj interface{}) ([]string, error) {
user, ok := obj.(*v3.User)
if !ok {
return []string{}, nil
}
return user.PrincipalIDs, nil
}
func tokenKeyIndexer(obj interface{}) ([]string, error) {
token, ok := obj.(*v3.Token)
if !ok {
return []string{}, nil
}
return []string{token.Token}, nil
}
func NewTokenAPIServer(ctx context.Context, apiContext *config.ScaledContext) error {
if tokenServer != nil {
return nil
}
if apiContext == nil {
return fmt.Errorf("failed to build tokenAPIHandler, nil ManagementContext")
}
informer := apiContext.Management.Users("").Controller().Informer()
informer.AddIndexers(map[string]cache.IndexFunc{userPrincipalIndex: userPrincipalIndexer})
tokenInformer := apiContext.Management.Tokens("").Controller().Informer()
tokenInformer.AddIndexers(map[string]cache.IndexFunc{tokenKeyIndex: tokenKeyIndexer})
tokenServer = &tokenAPIServer{
ctx: ctx,
tokensClient: apiContext.Management.Tokens(""),
userIndexer: informer.GetIndexer(),
tokenIndexer: tokenInformer.GetIndexer(),
}
return nil
}
//CreateDerivedToken will create a jwt token for the authenticated user
func (s *tokenAPIServer) createDerivedToken(jsonInput v3.Token, tokenAuthValue string) (v3.Token, int, error) {
logrus.Debug("Create Derived Token Invoked")
token, _, err := s.getK8sTokenCR(tokenAuthValue)
if err != nil {
return v3.Token{}, 401, err
}
k8sToken := &v3.Token{
UserPrincipal: token.UserPrincipal,
GroupPrincipals: token.GroupPrincipals,
IsDerived: true,
TTLMillis: jsonInput.TTLMillis,
UserID: token.UserID,
AuthProvider: token.AuthProvider,
ProviderInfo: token.ProviderInfo,
Description: jsonInput.Description,
}
rToken, err := s.createK8sTokenCR(k8sToken)
return rToken, 0, err
}
func (s *tokenAPIServer) createK8sTokenCR(k8sToken *v3.Token) (v3.Token, error) {
key, err := randomtoken.Generate()
if err != nil {
logrus.Errorf("Failed to generate token key: %v", err)
return v3.Token{}, fmt.Errorf("failed to generate token key")
}
labels := make(map[string]string)
labels[UserIDLabel] = k8sToken.UserID
k8sToken.APIVersion = "management.cattle.io/v3"
k8sToken.Kind = "Token"
k8sToken.Token = key
k8sToken.ObjectMeta = metav1.ObjectMeta{
GenerateName: "token-",
Labels: labels,
}
createdToken, err := s.tokensClient.Create(k8sToken)
if err != nil {
return v3.Token{}, err
}
return *createdToken, nil
}
func (s *tokenAPIServer) getK8sTokenCR(tokenAuthValue string) (*v3.Token, int, error) {
tokenName, tokenKey := SplitTokenParts(tokenAuthValue)
lookupUsingClient := false
objs, err := s.tokenIndexer.ByIndex(tokenKeyIndex, tokenKey)
if err != nil {
if apierrors.IsNotFound(err) {
lookupUsingClient = true
} else {
return nil, 0, fmt.Errorf("failed to retrieve auth token from cache, error: %v", err)
}
} else if len(objs) == 0 {
lookupUsingClient = true
}
storedToken := &v3.Token{}
if lookupUsingClient {
storedToken, err = s.tokensClient.Get(tokenName, metav1.GetOptions{})
if err != nil {
return nil, 404, fmt.Errorf("failed to retrieve auth token, error: %#v", err)
}
} else {
storedToken = objs[0].(*v3.Token)
}
if storedToken.Token != tokenKey || storedToken.ObjectMeta.Name != tokenName {
return nil, 0, fmt.Errorf("Invalid auth token value")
}
if IsExpired(*storedToken) {
return storedToken, 410, fmt.Errorf("Auth Token has expired")
}
return storedToken, 0, nil
}
//GetTokens will list all(login and derived, and even expired) tokens of the authenticated user
func (s *tokenAPIServer) getTokens(tokenAuthValue string) ([]v3.Token, int, error) {
logrus.Debug("LIST Tokens Invoked")
tokens := make([]v3.Token, 0)
storedToken, _, err := s.getK8sTokenCR(tokenAuthValue)
if err != nil {
return tokens, 401, err
}
userID := storedToken.UserID
set := labels.Set(map[string]string{UserIDLabel: userID})
tokenList, err := s.tokensClient.List(metav1.ListOptions{LabelSelector: set.AsSelector().String()})
if err != nil {
return tokens, 0, fmt.Errorf("error getting tokens for user: %v selector: %v err: %v", userID, set.AsSelector().String(), err)
}
for _, t := range tokenList.Items {
SetTokenExpiresAt(&t)
if IsExpired(t) {
t.Expired = true
}
tokens = append(tokens, t)
}
return tokens, 0, nil
}
func (s *tokenAPIServer) deleteToken(tokenAuthValue string) (int, error) {
logrus.Debug("DELETE Token Invoked")
storedToken, status, err := s.getK8sTokenCR(tokenAuthValue)
if err != nil {
if status == 404 {
return 0, nil
} else if status != 410 {
return 401, err
}
}
return s.deleteTokenByName(storedToken.Name)
}
func (s *tokenAPIServer) deleteTokenByName(tokenName string) (int, error) {
err := s.tokensClient.Delete(tokenName, &metav1.DeleteOptions{})
if err != nil {
if e2, ok := err.(*errors.StatusError); ok && e2.Status().Code == 404 {
return 0, nil
}
return 500, fmt.Errorf("failed to delete token")
}
logrus.Debug("Deleted Token")
return 0, nil
}
//getToken will get the token by ID
func (s *tokenAPIServer) getTokenByID(tokenAuthValue string, tokenID string) (v3.Token, int, error) {
logrus.Debug("GET Token Invoked")
token := &v3.Token{}
storedToken, _, err := s.getK8sTokenCR(tokenAuthValue)
if err != nil {
return *token, 401, err
}
token, err = s.tokensClient.Get(tokenID, metav1.GetOptions{})
if err != nil {
return v3.Token{}, 404, err
}
if token.UserID != storedToken.UserID {
return v3.Token{}, 404, fmt.Errorf("%v not found", tokenID)
}
if IsExpired(*token) {
token.Expired = true
}
SetTokenExpiresAt(token)
return *token, 0, nil
}