-
Notifications
You must be signed in to change notification settings - Fork 0
/
appkey.go
146 lines (124 loc) · 2.83 KB
/
appkey.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
package storage
import (
"crypto/md5"
"crypto/rand"
"database/sql"
"encoding/base64"
"encoding/binary"
"errors"
"fmt"
"io"
"log"
"time"
base "github.com/liut/baseconv"
)
const (
saltSize = 32
)
type App struct {
Id AppID `json:"id,omitempty"`
Version VerID `json:"api_ver,omitempty"`
ApiKey string `json:"api_key,omitempty"`
ApiSalt string `json:"api_salt,omitempty"`
Name string `json:"name,omitempty"`
Created time.Time `json:"created,omitempty"`
Disabled bool `json:"disabled,omitempty"`
}
func NewApp(name string) (app *App) {
app = &App{Name: name}
t := time.Now()
h := md5.New()
io.WriteString(h, name)
io.WriteString(h, fmt.Sprintf("%x", t.UnixNano()))
s := fmt.Sprintf("%x", h.Sum(nil))
api_key, _ := base.Convert(s, 16, 62)
log.Printf("new api_key '%s' for %s", api_key, name)
app.ApiKey = api_key
salt, err := newSalt()
if err != nil {
log.Print(err)
return
}
app.ApiSalt = salt
return
}
func LoadApp(api_key string) (app *App, err error) {
if api_key == "" {
err = fmt.Errorf("api_key is empty")
return
}
app = &App{ApiKey: api_key}
err = app.load()
return
}
func (a *App) load() error {
db := getDb()
sql := "SELECT id, name, api_ver, api_salt, disabled, created FROM apps WHERE api_key = $1 LIMIT 1"
rows, err := db.Query(sql, a.ApiKey)
if err != nil {
return err
}
defer rows.Close()
if !rows.Next() {
return fmt.Errorf("api_key not found or disabled")
}
return rows.Scan(&a.Id, &a.Name, &a.Version, &a.ApiSalt, &a.Disabled, &a.Created)
}
func (a *App) Save() error {
qs := func(tx *sql.Tx) (err error) {
sql := "SELECT app_save($1, $2, $3, $4);"
var ret int
err = tx.QueryRow(sql, a.Name, a.ApiKey, a.ApiSalt, a.Version).Scan(&ret)
if err == nil {
log.Printf("app saved: %v\n", ret)
if ret > 0 {
a.Id = AppID(ret)
}
}
return
}
return withTxQuery(qs)
}
func (a *App) genToken() (*apiToken, error) {
salt, err := a.saltBytes()
if err != nil {
return nil, err
}
return newToken(a.Version, a.Id, salt)
}
func (a *App) RequestNewToken(uid int) string {
t, err := a.genToken()
if err != nil {
logger().Warnw("genToken fail", "err", err)
return ""
}
var b = make([]byte, 4)
binary.BigEndian.PutUint32(b, uint32(uid))
t.SetValue(b, VC_TOKEN)
return t.String()
}
// VerifyToken ...
func (a *App) VerifyToken(token string) (at *apiToken, err error) {
if token == "" {
err = errors.New("api: need token argument")
return
}
if at, err = a.genToken(); err != nil {
err = fmt.Errorf("genToken: %s", err)
return
}
err = at.VerifyString(token)
return
}
func newSalt() (rs string, err error) {
rb := make([]byte, saltSize)
_, err = rand.Read(rb)
if err != nil {
return
}
rs = base64.URLEncoding.EncodeToString(rb)
return
}
func (a *App) saltBytes() ([]byte, error) {
return base64.URLEncoding.DecodeString(a.ApiSalt)
}