tangled.org
+12
knotserver/handler.go
+12
knotserver/handler.go
···
17
17
db: db,
18
18
}
19
19
20
+
// r.Group(func(r chi.Router) {
21
+
// r.Route("/settings", func(r chi.Router) {
22
+
// r.Get("/keys", h.Keys)
23
+
// r.Put("/keys", h.Keys)
24
+
// })
25
+
// })
26
+
20
27
r.Get("/", h.Index)
21
28
r.Route("/{did}", func(r chi.Router) {
22
29
// Repo routes
···
42
49
43
50
r.Route("/repo", func(r chi.Router) {
44
51
r.Put("/new", h.NewRepo)
52
+
})
53
+
54
+
r.Route("/internal", func(r chi.Router) {
55
+
r.Use(h.VerifySignature)
56
+
r.Get("/health", h.Health)
45
57
})
46
58
47
59
return r, nil
+35
knotserver/middleware.go
+35
knotserver/middleware.go
···
1
+
package knotserver
2
+
3
+
import (
4
+
"crypto/hmac"
5
+
"crypto/sha256"
6
+
"encoding/hex"
7
+
"net/http"
8
+
)
9
+
10
+
func (h *Handle) VerifySignature(next http.Handler) http.Handler {
11
+
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
12
+
signature := r.Header.Get("X-Signature")
13
+
if signature == "" || !h.verifyHMAC(signature, r) {
14
+
writeError(w, "signature verification failed", http.StatusForbidden)
15
+
return
16
+
}
17
+
next.ServeHTTP(w, r)
18
+
})
19
+
}
20
+
21
+
func (h *Handle) verifyHMAC(signature string, r *http.Request) bool {
22
+
secret := h.c.Secret
23
+
message := r.Method + r.URL.Path + r.URL.RawQuery
24
+
25
+
mac := hmac.New(sha256.New, []byte(secret))
26
+
mac.Write([]byte(message))
27
+
expectedMAC := mac.Sum(nil)
28
+
29
+
signatureBytes, err := hex.DecodeString(signature)
30
+
if err != nil {
31
+
return false
32
+
}
33
+
34
+
return hmac.Equal(signatureBytes, expectedMAC)
35
+
}
+4
-21
knotserver/routes.go
+4
-21
knotserver/routes.go
···
358
358
// return
359
359
// }
360
360
361
-
// // store in pds too
362
-
// resp, err := comatproto.RepoPutRecord(r.Context(), client, &comatproto.RepoPutRecord_Input{
363
-
// Collection: "sh.bild.publicKey",
364
-
// Repo: did,
365
-
// Rkey: uuid.New().String(),
366
-
// Record: &lexutil.LexiconTypeDecoder{Val: &shbild.PublicKey{
367
-
// Created: time.Now().String(),
368
-
// Key: key,
369
-
// Name: name,
370
-
// }},
371
-
// })
372
-
373
-
// // invalid record
374
-
// if err != nil {
375
-
// h.WriteOOBNotice(w, "keys", "Invalid inputs. Check your formatting and try again.")
376
-
// log.Printf("failed to create record: %s", err)
377
-
// return
378
-
// }
379
-
380
-
// log.Println("created atproto record: ", resp.Uri)
381
-
382
361
// h.WriteOOBNotice(w, "keys", "Key added!")
383
362
// return
384
363
// }
···
423
402
// return
424
403
// }
425
404
// }
405
+
406
+
func (h *Handle) Health(w http.ResponseWriter, r *http.Request) {
407
+
w.Write([]byte("ok"))
408
+
}