forked from markbates/goth
/
wepay.go
131 lines (116 loc) · 3.31 KB
/
wepay.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
// Package wepay implements the OAuth2 protocol for authenticating users through wepay.
// This package can be used as a reference implementation of an OAuth2 provider for Goth.
package wepay
import (
"encoding/json"
"github.com/markbates/goth"
"golang.org/x/oauth2"
"io"
"net/http"
"strconv"
"strings"
)
const (
authURL string = "https://www.wepay.com/v2/oauth2/authorize"
tokenURL string = "https://wepayapi.com/v2/oauth2/token"
endpointProfile string = "https://wepayapi.com/v2/user"
)
// Provider is the implementation of `goth.Provider` for accessing Wepay.
type Provider struct {
ClientKey string
Secret string
CallbackURL string
config *oauth2.Config
}
// New creates a new Wepay provider and sets up important connection details.
// You should always call `wepay.New` to get a new provider. Never try to
// create one manually.
func New(clientKey, secret, callbackURL string, scopes ...string) *Provider {
p := &Provider{
ClientKey: clientKey,
Secret: secret,
CallbackURL: callbackURL,
}
p.config = newConfig(p, scopes)
return p
}
// Name is the name used to retrieve this provider later.
func (p *Provider) Name() string {
return "wepay"
}
// Debug is a no-op for the wepay package.
func (p *Provider) Debug(debug bool) {}
// BeginAuth asks Wepay for an authentication end-point.
func (p *Provider) BeginAuth(state string) (goth.Session, error) {
return &Session{
AuthURL: p.config.AuthCodeURL(state),
}, nil
}
// FetchUser will go to Wepay and access basic information about the user.
func (p *Provider) FetchUser(session goth.Session) (goth.User, error) {
s := session.(*Session)
user := goth.User{
AccessToken: s.AccessToken,
Provider: p.Name(),
RefreshToken: s.RefreshToken,
ExpiresAt: s.ExpiresAt,
}
req, err := http.NewRequest("GET", endpointProfile, nil)
if err != nil {
return user, err
}
req.Header.Set("Authorization", "Bearer "+s.AccessToken)
resp, err := http.DefaultClient.Do(req)
if err != nil {
if resp != nil {
resp.Body.Close()
}
return user, err
}
defer resp.Body.Close()
err = userFromReader(resp.Body, &user)
return user, err
}
func newConfig(provider *Provider, scopes []string) *oauth2.Config {
//Wepay is not recoginsing scope, if scope is not present as first paremeter
newAuthURL := authURL
if len(scopes) > 0 {
newAuthURL = newAuthURL + "?scope=" + strings.Join(scopes, ",")
} else {
newAuthURL = newAuthURL + "?scope=view_user"
}
c := &oauth2.Config{
ClientID: provider.ClientKey,
ClientSecret: provider.Secret,
RedirectURL: provider.CallbackURL,
Endpoint: oauth2.Endpoint{
AuthURL: newAuthURL,
TokenURL: tokenURL,
},
Scopes: []string{},
}
return c
}
func userFromReader(r io.Reader, user *goth.User) error {
u := struct {
Email string `json:"email"`
UserName string `json:"user_name"`
ID int `json:"user_id"`
}{}
err := json.NewDecoder(r).Decode(&u)
if err != nil {
return err
}
user.Email = u.Email
user.Name = u.UserName
user.UserID = strconv.Itoa(u.ID)
return nil
}
//RefreshTokenAvailable refresh token is provided by auth provider or not
func (p *Provider) RefreshTokenAvailable() bool {
return false
}
//RefreshToken get new access token based on the refresh token
func (p *Provider) RefreshToken(refreshToken string) (*oauth2.Token, error) {
return nil, nil
}