forked from rexray/rexray
/
handlers_local_devices.go
52 lines (42 loc) · 1.28 KB
/
handlers_local_devices.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
package handlers
import (
"net/http"
"strings"
"github.com/rexray/rexray/libstorage/api/context"
"github.com/rexray/rexray/libstorage/api/types"
)
// localDevicesHandler is a global HTTP filter for grokking the local devices
// from the headers
type localDevicesHandler struct {
handler types.APIFunc
}
// NewLocalDevicesHandler returns a new global HTTP filter for grokking the
// local devices from the headers
func NewLocalDevicesHandler() types.Middleware {
return &localDevicesHandler{}
}
func (h *localDevicesHandler) Name() string {
return "local-devices-handler"
}
func (h *localDevicesHandler) Handler(m types.APIFunc) types.APIFunc {
return (&localDevicesHandler{m}).Handle
}
// Handle is the type's Handler function.
func (h *localDevicesHandler) Handle(
ctx types.Context,
w http.ResponseWriter,
req *http.Request,
store types.Store) error {
headers := req.Header[types.LocalDevicesHeader]
ctx.WithField(types.LocalDevicesHeader, headers).Debug("http header")
valMap := types.LocalDevicesMap{}
for _, h := range headers {
val := &types.LocalDevices{}
if err := val.UnmarshalText([]byte(h)); err != nil {
return err
}
valMap[strings.ToLower(val.Driver)] = val
}
ctx = ctx.WithValue(context.AllLocalDevicesKey, valMap)
return h.handler(ctx, w, req, store)
}