/
refreshToken.go
196 lines (168 loc) · 6.43 KB
/
refreshToken.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
package service
import (
"context"
"errors"
"fmt"
"time"
"github.com/plgd-dev/go-coap/v3/message"
coapCodes "github.com/plgd-dev/go-coap/v3/message/codes"
"github.com/plgd-dev/go-coap/v3/message/pool"
"github.com/plgd-dev/go-coap/v3/mux"
"github.com/plgd-dev/hub/v2/coap-gateway/coapconv"
kitNetGrpc "github.com/plgd-dev/hub/v2/pkg/net/grpc"
"github.com/plgd-dev/hub/v2/pkg/security/oauth2"
pkgTime "github.com/plgd-dev/hub/v2/pkg/time"
"github.com/plgd-dev/kit/v2/codec/cbor"
)
type CoapRefreshTokenReq struct {
DeviceID string `json:"di"`
UserID string `json:"uid"`
RefreshToken string `json:"refreshtoken"`
AuthorizationProvider string `json:"authprovider"`
}
type CoapRefreshTokenResp struct {
AccessToken string `json:"accesstoken"`
RefreshToken string `json:"refreshtoken"`
ExpiresIn int64 `json:"expiresin"`
}
// Get data for sign in response
func getRefreshTokenContent(token *oauth2.Token, expiresIn int64, options message.Options) (message.MediaType, []byte, error) {
coapResp := CoapRefreshTokenResp{
RefreshToken: token.RefreshToken,
AccessToken: token.AccessToken.String(),
ExpiresIn: expiresIn,
}
accept := coapconv.GetAccept(options)
encode, err := coapconv.GetEncoder(accept)
if err != nil {
return 0, nil, err
}
out, err := encode(coapResp)
if err != nil {
return 0, nil, err
}
return accept, out, nil
}
func validateRefreshToken(req CoapRefreshTokenReq) error {
if req.DeviceID == "" {
return errors.New("cannot refresh token: invalid deviceID")
}
if req.RefreshToken == "" {
return errors.New("cannot refresh token: invalid refreshToken")
}
if req.UserID == "" {
return errors.New("cannot refresh token: invalid userId")
}
return nil
}
func getProviders(client *session, authorizationProvider string) (map[string]*oauth2.PlgdProvider, error) {
if authorizationProvider == "" {
return client.server.providers, nil
}
provider, ok := client.server.providers[authorizationProvider]
if !ok {
return nil, fmt.Errorf("unknown authorization provider('%v')", authorizationProvider)
}
providers := make(map[string]*oauth2.PlgdProvider)
providers[authorizationProvider] = provider
return providers, nil
}
func validUntilToExpiresIn(validUntil time.Time) int64 {
if validUntil.IsZero() {
return -1
}
return int64(time.Until(validUntil).Seconds())
}
func updateClient(client *session, deviceID, owner, accessToken string, validUntil time.Time) {
if _, err := client.GetAuthorizationContext(); err != nil {
return
}
authCtx := authorizationContext{
DeviceID: deviceID,
UserID: owner,
AccessToken: accessToken,
Expire: validUntil,
}
client.SetAuthorizationContext(&authCtx)
setExpirationClientCache(client.server.expirationClientCache, deviceID, client, validUntil)
}
func getRefreshTokenDataFromClaims(ctx context.Context, client *session, accessToken string, req CoapRefreshTokenReq) (string, string, error) {
claim, err := client.ValidateToken(ctx, accessToken)
if err != nil {
return "", "", err
}
deviceID, err := client.server.VerifyAndResolveDeviceID(client.tlsDeviceID, req.DeviceID, claim)
if err != nil {
return "", "", err
}
owner, err := claim.GetOwner(client.server.config.APIs.COAP.Authorization.OwnerClaim)
if err != nil {
return "", "", err
}
if owner == "" {
owner = req.UserID
}
if owner == "" {
return "", "", errors.New("cannot determine owner")
}
return deviceID, owner, nil
}
func refreshTokenPostHandler(req *mux.Message, client *session) (*pool.Message, error) {
const fmtErr = "cannot handle refresh token for %v: %w"
var refreshToken CoapRefreshTokenReq
err := cbor.ReadFrom(req.Body(), &refreshToken)
if err != nil {
return nil, statusErrorf(coapCodes.BadRequest, "%w", fmt.Errorf(fmtErr, "unknown", err))
}
err = validateRefreshToken(refreshToken)
if err != nil {
return nil, statusErrorf(coapCodes.BadRequest, "%w", fmt.Errorf(fmtErr, refreshToken.DeviceID, err))
}
// use provider for request
providers, err := getProviders(client, refreshToken.AuthorizationProvider)
if err != nil {
return nil, statusErrorf(coapCodes.Unauthorized, "%w", fmt.Errorf(fmtErr, refreshToken.DeviceID, err))
}
token, err := client.refreshCache.Execute(req.Context(), providers, client.server.taskQueue, refreshToken.RefreshToken, client.getLogger())
if err != nil {
// When OAuth server is not accessible, then return 503 Service Unavailable. If real error occurs them http code is mapped to code.
return nil, statusErrorf(coapCodes.ServiceUnavailable, "%w", fmt.Errorf(fmtErr, refreshToken.DeviceID, err))
}
if token.RefreshToken == "" {
return nil, statusErrorf(coapCodes.Unauthorized, "%w", fmt.Errorf(fmtErr, refreshToken.DeviceID, errors.New("refresh didn't return a refresh token")))
}
deviceID, owner, err := getRefreshTokenDataFromClaims(req.Context(), client, token.AccessToken.String(), refreshToken)
if err != nil {
return nil, statusErrorf(coapCodes.Unauthorized, "%w", fmt.Errorf(fmtErr, refreshToken.DeviceID, err))
}
ctx := kitNetGrpc.CtxWithIncomingToken(kitNetGrpc.CtxWithToken(req.Context(), token.AccessToken.String()), token.AccessToken.String())
ok, err := client.server.ownerCache.OwnsDevice(ctx, deviceID)
if err != nil {
return nil, statusErrorf(coapCodes.Unauthorized, "%w", fmt.Errorf(fmtErr, deviceID, fmt.Errorf("cannot check owning: %w", err)))
}
if !ok {
return nil, statusErrorf(coapCodes.Unauthorized, "%w", fmt.Errorf(fmtErr, deviceID, errors.New("device is not registered")))
}
expire, ok := ValidUntil(token.Expiry)
if !ok {
return nil, statusErrorf(coapCodes.Unauthorized, "%w", fmt.Errorf(fmtErr, deviceID, errors.New("expired access token")))
}
validUntil := pkgTime.Unix(0, expire)
expiresIn := validUntilToExpiresIn(validUntil)
accept, out, err := getRefreshTokenContent(token, expiresIn, req.Options())
if err != nil {
return nil, statusErrorf(coapCodes.ServiceUnavailable, "%w", fmt.Errorf(fmtErr, deviceID, err))
}
updateClient(client, deviceID, owner, token.AccessToken.String(), validUntil)
return client.createResponse(coapCodes.Changed, req.Token(), accept, out), nil
}
// RefreshToken
// https://github.com/openconnectivityfoundation/security/blob/master/swagger2.0/oic.sec.tokenrefresh.swagger.json
func refreshTokenHandler(req *mux.Message, client *session) (*pool.Message, error) {
switch req.Code() {
case coapCodes.POST:
return refreshTokenPostHandler(req, client)
default:
return nil, statusErrorf(coapCodes.NotFound, "unsupported method %v", req.Code())
}
}