-
Notifications
You must be signed in to change notification settings - Fork 29
/
air_gases.go
110 lines (88 loc) · 2.64 KB
/
air_gases.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
package main
import (
"errors"
"fmt"
"log/slog"
"net/http"
"strconv"
"time"
"github.com/air-gases/authenticator"
"github.com/aofei/air"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
)
const (
usernameKey = "username"
)
var (
httpRequestsDuration = promauto.NewHistogramVec(prometheus.HistogramOpts{
Namespace: "goatak",
Subsystem: "http",
Name: "request_duration_seconds",
Help: "The latency of the HTTP requests.",
Buckets: prometheus.DefBuckets,
}, []string{"api"})
httpRequestsCount = promauto.NewCounterVec(prometheus.CounterOpts{
Namespace: "goatak",
Subsystem: "http",
Name: "requests_total",
Help: "Number of the HTTP requests.",
}, []string{"api", "path", "method", "code"})
)
func AuthGas(app *App) air.Gas {
return authenticator.BasicAuthGas(authenticator.BasicAuthGasConfig{
Validator: func(username string, password string, req *air.Request, _ *air.Response) (bool, error) {
req.SetValue(usernameKey, username)
return app.users.CheckUserAuth(username, password), nil
},
})
}
func SSLCheckHandlerGas(app *App) air.Gas {
err := errors.New("unauthorized")
return func(next air.Handler) air.Handler {
return func(req *air.Request, res *air.Response) error {
if h := req.HTTPRequest(); h != nil {
if h.TLS != nil {
user, serial := getCertUser(h.TLS)
if app.users.UserIsValid(user, serial) {
req.SetValue(usernameKey, user)
return next(req, res)
}
app.logger.Warn(fmt.Sprintf("invalid user %s serial %s", user, serial))
}
}
time.Sleep(3 * time.Second)
res.Status = http.StatusUnauthorized
return err
}
}
}
func LoggerGas(apiName string) air.Gas {
logger := slog.Default().With("logger", apiName)
return func(next air.Handler) air.Handler {
return func(req *air.Request, res *air.Response) error {
startTime := time.Now()
res.Defer(func() {
endTime := time.Now()
username := getUsernameFromReq(req)
httpRequestsDuration.With(prometheus.Labels{"api": apiName}).Observe(endTime.Sub(startTime).Seconds())
httpRequestsCount.With(prometheus.Labels{
"api": apiName,
"path": req.RawPath(),
"method": req.Method,
"code": strconv.Itoa(res.Status),
}).Inc()
logger.With(slog.String("user", username), slog.Int("status", res.Status)).Info(
fmt.Sprintf("%s %s, client: %s, time :%s",
req.Method, req.Path, req.ClientAddress(), endTime.Sub(startTime)))
})
return next(req, res)
}
}
}
func getUsernameFromReq(req *air.Request) string {
if u := req.Value(usernameKey); u != nil {
return u.(string)
}
return ""
}