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
|
// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package auth
import (
"net/http"
"strings"
"time"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/models/auth"
"code.gitea.io/gitea/models/db"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/web/middleware"
"code.gitea.io/gitea/services/auth/source/oauth2"
)
// Ensure the struct implements the interface.
var (
_ Method = &OAuth2{}
_ Named = &OAuth2{}
)
// CheckOAuthAccessToken returns uid of user from oauth token
func CheckOAuthAccessToken(accessToken string) int64 {
// JWT tokens require a "."
if !strings.Contains(accessToken, ".") {
return 0
}
token, err := oauth2.ParseToken(accessToken, oauth2.DefaultSigningKey)
if err != nil {
log.Trace("oauth2.ParseToken: %v", err)
return 0
}
var grant *auth.OAuth2Grant
if grant, err = auth.GetOAuth2GrantByID(db.DefaultContext, token.GrantID); err != nil || grant == nil {
return 0
}
if token.Type != oauth2.TypeAccessToken {
return 0
}
if token.ExpiresAt.Before(time.Now()) || token.IssuedAt.After(time.Now()) {
return 0
}
return grant.UserID
}
// OAuth2 implements the Auth interface and authenticates requests
// (API requests only) by looking for an OAuth token in query parameters or the
// "Authorization" header.
type OAuth2 struct{}
// Name represents the name of auth method
func (o *OAuth2) Name() string {
return "oauth2"
}
// userIDFromToken returns the user id corresponding to the OAuth token.
func (o *OAuth2) userIDFromToken(req *http.Request, store DataStore) int64 {
_ = req.ParseForm()
// Check access token.
tokenSHA := req.Form.Get("token")
if len(tokenSHA) == 0 {
tokenSHA = req.Form.Get("access_token")
}
if len(tokenSHA) == 0 {
// Well, check with header again.
auHead := req.Header.Get("Authorization")
if len(auHead) > 0 {
auths := strings.Fields(auHead)
if len(auths) == 2 && (auths[0] == "token" || strings.ToLower(auths[0]) == "bearer") {
tokenSHA = auths[1]
}
}
}
if len(tokenSHA) == 0 {
return 0
}
// Let's see if token is valid.
if strings.Contains(tokenSHA, ".") {
uid := CheckOAuthAccessToken(tokenSHA)
if uid != 0 {
store.GetData()["IsApiToken"] = true
}
return uid
}
t, err := models.GetAccessTokenBySHA(tokenSHA)
if err != nil {
if !models.IsErrAccessTokenNotExist(err) && !models.IsErrAccessTokenEmpty(err) {
log.Error("GetAccessTokenBySHA: %v", err)
}
return 0
}
t.UpdatedUnix = timeutil.TimeStampNow()
if err = models.UpdateAccessToken(t); err != nil {
log.Error("UpdateAccessToken: %v", err)
}
store.GetData()["IsApiToken"] = true
return t.UID
}
// Verify extracts the user ID from the OAuth token in the query parameters
// or the "Authorization" header and returns the corresponding user object for that ID.
// If verification is successful returns an existing user object.
// Returns nil if verification fails.
func (o *OAuth2) Verify(req *http.Request, w http.ResponseWriter, store DataStore, sess SessionStore) *user_model.User {
if !db.HasEngine {
return nil
}
if !middleware.IsAPIPath(req) && !isAttachmentDownload(req) && !isAuthenticatedTokenRequest(req) {
return nil
}
id := o.userIDFromToken(req, store)
if id <= 0 {
return nil
}
log.Trace("OAuth2 Authorization: Found token for user[%d]", id)
user, err := user_model.GetUserByID(id)
if err != nil {
if !user_model.IsErrUserNotExist(err) {
log.Error("GetUserByName: %v", err)
}
return nil
}
log.Trace("OAuth2 Authorization: Logged in user %-v", user)
return user
}
func isAuthenticatedTokenRequest(req *http.Request) bool {
switch req.URL.Path {
case "/login/oauth/userinfo":
fallthrough
case "/login/oauth/introspect":
return true
}
return false
}
|
