-
Notifications
You must be signed in to change notification settings - Fork 32
/
claimtree.go
50 lines (41 loc) · 1.32 KB
/
claimtree.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
package apitypes
import (
"errors"
"github.com/manifoldco/torus-cli/envelope"
"github.com/manifoldco/torus-cli/primitive"
)
// ErrClaimCycleFound is returned when a cycle is found within the claims.
// this *should* be impossible, as they are signed.
var ErrClaimCycleFound = errors.New("Cycle detected in signed claims")
// PublicKeySegment represents a sub section of a claimtree targeting a
// specific public key and it's claims.
type PublicKeySegment struct {
PublicKey *envelope.PublicKey `json:"public_key"`
Claims []envelope.Claim `json:"claims"`
}
// Revoked returns a bool indicating if any revocation claims exist against this
// PublicKey
func (pks *PublicKeySegment) Revoked() bool {
for _, claim := range pks.Claims {
if claim.Body.ClaimType == primitive.RevocationClaimType {
return true
}
}
return false
}
// HeadClaim returns the most recent Claim made against this PublicKey
func (pks *PublicKeySegment) HeadClaim() (*envelope.Claim, error) {
// The head claim is the one that is not the previous claim of any others
outerLoop:
for _, c1 := range pks.Claims {
for _, c2 := range pks.Claims {
if *c2.Body.Previous == *c1.ID {
// Something else is newer than c1
continue outerLoop
}
}
// nothing is newer than c1. return it
return &c1, nil
}
return nil, ErrClaimCycleFound
}