-
Notifications
You must be signed in to change notification settings - Fork 1.1k
/
token_cas.go
365 lines (319 loc) · 10.4 KB
/
token_cas.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
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
// Copyright 2022 The Casdoor Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package object
import (
"crypto"
"encoding/base64"
"encoding/json"
"encoding/pem"
"encoding/xml"
"fmt"
"math/rand"
"sync"
"time"
"github.com/beevik/etree"
"github.com/casdoor/casdoor/i18n"
"github.com/casdoor/casdoor/util"
dsig "github.com/russellhaering/goxmldsig"
)
type CasServiceResponse struct {
XMLName xml.Name `xml:"cas:serviceResponse" json:"-"`
Xmlns string `xml:"xmlns:cas,attr"`
Failure *CasAuthenticationFailure
Success *CasAuthenticationSuccess
ProxySuccess *CasProxySuccess
ProxyFailure *CasProxyFailure
}
type CasAuthenticationFailure struct {
XMLName xml.Name `xml:"cas:authenticationFailure" json:"-"`
Code string `xml:"code,attr"`
Message string `xml:",innerxml"`
}
type CasAuthenticationSuccess struct {
XMLName xml.Name `xml:"cas:authenticationSuccess" json:"-"`
User string `xml:"cas:user"`
ProxyGrantingTicket string `xml:"cas:proxyGrantingTicket,omitempty"`
Proxies *CasProxies `xml:"cas:proxies"`
Attributes *CasAttributes `xml:"cas:attributes"`
ExtraAttributes []*CasAnyAttribute `xml:",any"`
}
type CasProxies struct {
XMLName xml.Name `xml:"cas:proxies" json:"-"`
Proxies []string `xml:"cas:proxy"`
}
type CasAttributes struct {
XMLName xml.Name `xml:"cas:attributes" json:"-"`
AuthenticationDate time.Time `xml:"cas:authenticationDate"`
LongTermAuthenticationRequestTokenUsed bool `xml:"cas:longTermAuthenticationRequestTokenUsed"`
IsFromNewLogin bool `xml:"cas:isFromNewLogin"`
MemberOf []string `xml:"cas:memberOf"`
UserAttributes *CasUserAttributes
ExtraAttributes []*CasAnyAttribute `xml:",any"`
}
type CasUserAttributes struct {
XMLName xml.Name `xml:"cas:userAttributes" json:"-"`
Attributes []*CasNamedAttribute `xml:"cas:attribute"`
AnyAttributes []*CasAnyAttribute `xml:",any"`
}
type CasNamedAttribute struct {
XMLName xml.Name `xml:"cas:attribute" json:"-"`
Name string `xml:"name,attr,omitempty"`
Value string `xml:",innerxml"`
}
type CasAnyAttribute struct {
XMLName xml.Name
Value string `xml:",chardata"`
}
type CasAuthenticationSuccessWrapper struct {
AuthenticationSuccess *CasAuthenticationSuccess // the token we issued
Service string // to which service this token is issued
UserId string
}
type CasProxySuccess struct {
XMLName xml.Name `xml:"cas:proxySuccess" json:"-"`
ProxyTicket string `xml:"cas:proxyTicket"`
}
type CasProxyFailure struct {
XMLName xml.Name `xml:"cas:proxyFailure" json:"-"`
Code string `xml:"code,attr"`
Message string `xml:",innerxml"`
}
type Saml11Request struct {
XMLName xml.Name `xml:"Request"`
SAMLP string `xml:"samlp,attr"`
MajorVersion string `xml:"MajorVersion,attr"`
MinorVersion string `xml:"MinorVersion,attr"`
RequestID string `xml:"RequestID,attr"`
IssueInstant string `xml:"IssueInstance,attr"`
AssertionArtifact Saml11AssertionArtifact
}
type Saml11AssertionArtifact struct {
XMLName xml.Name `xml:"AssertionArtifact"`
InnerXML string `xml:",innerxml"`
}
// st is short for service ticket
var stToServiceResponse sync.Map
// pgt is short for proxy granting ticket
var pgtToServiceResponse sync.Map
func CheckCasLogin(application *Application, lang string, service string) error {
if len(application.RedirectUris) > 0 && !application.IsRedirectUriValid(service) {
return fmt.Errorf(i18n.Translate(lang, "token:Redirect URI: %s doesn't exist in the allowed Redirect URI list"), service)
}
return nil
}
func StoreCasTokenForPgt(token *CasAuthenticationSuccess, service, userId string) string {
pgt := fmt.Sprintf("PGT-%s", util.GenerateId())
pgtToServiceResponse.Store(pgt, &CasAuthenticationSuccessWrapper{
AuthenticationSuccess: token,
Service: service,
UserId: userId,
})
return pgt
}
func GenerateId() {
panic("unimplemented")
}
// GetCasTokenByPgt
/**
@ret1: whether a token is found
@ret2: token, nil if not found
@ret3: the service URL who requested to issue this token
@ret4: userIf of user who requested to issue this token
*/
func GetCasTokenByPgt(pgt string) (bool, *CasAuthenticationSuccess, string, string) {
if responseWrapperType, ok := pgtToServiceResponse.LoadAndDelete(pgt); ok {
responseWrapperTypeCast := responseWrapperType.(*CasAuthenticationSuccessWrapper)
return true, responseWrapperTypeCast.AuthenticationSuccess, responseWrapperTypeCast.Service, responseWrapperTypeCast.UserId
}
return false, nil, "", ""
}
// GetCasTokenByTicket
/**
@ret1: whether a token is found
@ret2: token, nil if not found
@ret3: the service URL who requested to issue this token
@ret4: userIf of user who requested to issue this token
*/
func GetCasTokenByTicket(ticket string) (bool, *CasAuthenticationSuccess, string, string) {
if responseWrapperType, ok := stToServiceResponse.LoadAndDelete(ticket); ok {
responseWrapperTypeCast := responseWrapperType.(*CasAuthenticationSuccessWrapper)
return true, responseWrapperTypeCast.AuthenticationSuccess, responseWrapperTypeCast.Service, responseWrapperTypeCast.UserId
}
return false, nil, "", ""
}
func StoreCasTokenForProxyTicket(token *CasAuthenticationSuccess, targetService, userId string) string {
proxyTicket := fmt.Sprintf("PT-%s", util.GenerateId())
stToServiceResponse.Store(proxyTicket, &CasAuthenticationSuccessWrapper{
AuthenticationSuccess: token,
Service: targetService,
UserId: userId,
})
return proxyTicket
}
func GenerateCasToken(userId string, service string) (string, error) {
user, err := GetUser(userId)
if err != nil {
return "", err
}
if user == nil {
return "", fmt.Errorf("The user: %s doesn't exist", userId)
}
user, _ = GetMaskedUser(user, false)
authenticationSuccess := CasAuthenticationSuccess{
User: user.Name,
Attributes: &CasAttributes{
AuthenticationDate: time.Now(),
UserAttributes: &CasUserAttributes{},
},
ProxyGrantingTicket: fmt.Sprintf("PGTIOU-%s", util.GenerateId()),
}
data, err := json.Marshal(user)
if err != nil {
return "", err
}
tmp := map[string]string{}
err = json.Unmarshal(data, &tmp)
if err != nil {
return "", err
}
for k, v := range tmp {
if v != "" {
authenticationSuccess.Attributes.UserAttributes.Attributes = append(authenticationSuccess.Attributes.UserAttributes.Attributes, &CasNamedAttribute{
Name: k,
Value: v,
})
}
}
st := fmt.Sprintf("ST-%d", rand.Int())
stToServiceResponse.Store(st, &CasAuthenticationSuccessWrapper{
AuthenticationSuccess: &authenticationSuccess,
Service: service,
UserId: userId,
})
return st, nil
}
// GetValidationBySaml
/**
@ret1: saml response
@ret2: the service URL who requested to issue this token
@ret3: error
*/
func GetValidationBySaml(samlRequest string, host string) (string, string, error) {
var request Saml11Request
err := xml.Unmarshal([]byte(samlRequest), &request)
if err != nil {
return "", "", err
}
ticket := request.AssertionArtifact.InnerXML
if ticket == "" {
return "", "", fmt.Errorf("samlp:AssertionArtifact field not found")
}
ok, _, service, userId := GetCasTokenByTicket(ticket)
if !ok {
return "", "", fmt.Errorf("ticket %s found", ticket)
}
user, err := GetUser(userId)
if err != nil {
return "", "", err
}
if user == nil {
return "", "", fmt.Errorf("user %s found", userId)
}
application, err := GetApplicationByUser(user)
if err != nil {
return "", "", err
}
if application == nil {
return "", "", fmt.Errorf("application for user %s found", userId)
}
samlResponse := NewSamlResponse11(user, request.RequestID, host)
cert, err := getCertByApplication(application)
if err != nil {
return "", "", err
}
block, _ := pem.Decode([]byte(cert.Certificate))
certificate := base64.StdEncoding.EncodeToString(block.Bytes)
randomKeyStore := &X509Key{
PrivateKey: cert.PrivateKey,
X509Certificate: certificate,
}
ctx := dsig.NewDefaultSigningContext(randomKeyStore)
ctx.Hash = crypto.SHA1
signedXML, err := ctx.SignEnveloped(samlResponse)
if err != nil {
return "", "", fmt.Errorf("err: %s", err.Error())
}
doc := etree.NewDocument()
doc.SetRoot(signedXML)
xmlStr, err := doc.WriteToString()
if err != nil {
return "", "", fmt.Errorf("err: %s", err.Error())
}
return xmlStr, service, nil
}
func (c *CasAuthenticationSuccess) DeepCopy() CasAuthenticationSuccess {
res := *c
// copy proxy
if c.Proxies != nil {
tmp := c.Proxies.DeepCopy()
res.Proxies = &tmp
}
if c.Attributes != nil {
tmp := c.Attributes.DeepCopy()
res.Attributes = &tmp
}
res.ExtraAttributes = make([]*CasAnyAttribute, len(c.ExtraAttributes))
for i, e := range c.ExtraAttributes {
tmp := *e
res.ExtraAttributes[i] = &tmp
}
return res
}
func (c *CasProxies) DeepCopy() CasProxies {
res := CasProxies{
Proxies: make([]string, len(c.Proxies)),
}
copy(res.Proxies, c.Proxies)
return res
}
func (c *CasAttributes) DeepCopy() CasAttributes {
res := *c
if c.MemberOf != nil {
res.MemberOf = make([]string, len(c.MemberOf))
copy(res.MemberOf, c.MemberOf)
}
tmp := c.UserAttributes.DeepCopy()
res.UserAttributes = &tmp
res.ExtraAttributes = make([]*CasAnyAttribute, len(c.ExtraAttributes))
for i, e := range c.ExtraAttributes {
tmp := *e
res.ExtraAttributes[i] = &tmp
}
return res
}
func (c *CasUserAttributes) DeepCopy() CasUserAttributes {
res := CasUserAttributes{
AnyAttributes: make([]*CasAnyAttribute, len(c.AnyAttributes)),
Attributes: make([]*CasNamedAttribute, len(c.Attributes)),
}
for i, a := range c.AnyAttributes {
tmp := *a
res.AnyAttributes[i] = &tmp
}
for i, a := range c.Attributes {
tmp := *a
res.Attributes[i] = &tmp
}
return res
}