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
|
package controllers
import (
"net/http"
"time"
"code.crute.us/mcrute/cloud-identity-broker/cloud/aws"
"code.crute.us/mcrute/golib/echo/controller"
"github.com/labstack/echo/v4"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
)
var credsAllowed = promauto.NewCounterVec(prometheus.CounterOpts{
Namespace: "aws_access", // Legacy namespace
Name: "broker_cred_access_total",
Help: "Total number of credential accesses allowed by broker",
}, []string{"account", "region"})
type jsonCredential struct {
AccessKeyId *string `json:"access_key"`
SecretAccessKey *string `json:"secret_key"`
SessionToken *string `json:"session_token"`
Expiration *time.Time `json:"expiration"`
}
type APICredentialsHandler struct {
*AWSAPI
}
func NewAPICredentialsHandler(a *AWSAPI) echo.HandlerFunc {
al := &APICredentialsHandler{a}
h := &controller.ContentTypeNegotiatingHandler{
DefaultHandler: al.Handle,
Handlers: map[string]echo.HandlerFunc{
contentTypeV1: al.Handle,
},
}
return h.Handle
}
func (h *APICredentialsHandler) Handle(c echo.Context) error {
rc, err := h.GetContext(c) // Does authorization checks
if err != nil {
return err
}
region := c.Param("region")
creds, err := rc.AWS.AssumeRole(rc.Principal.Username, ®ion)
if err != nil {
if aws.IsRegionNotExist(err) {
return echo.NotFoundHandler(c)
}
c.Logger().Errorf("Error retrieving credentials: %w", err)
return echo.ErrInternalServerError
}
c.Logger().Infof(
"Allowing '%s' to access account credential '%s'",
rc.Principal.Username, rc.Account.Name,
)
credsAllowed.With(prometheus.Labels{
"account": rc.Account.ShortName,
"region": region,
}).Inc()
c.Response().Header().Set("Expires", creds.Expiration.Add(-5*time.Minute).Format(time.RFC1123))
return c.JSON(http.StatusOK, &jsonCredential{
AccessKeyId: creds.AccessKeyId,
SecretAccessKey: creds.SecretAccessKey,
SessionToken: creds.SessionToken,
Expiration: creds.Expiration,
})
}
|
