diff options
Diffstat (limited to 'objects')
| -rw-r--r-- | objects/id.go | 10 | ||||
| -rw-r--r-- | objects/object_snapshot.go | 17 |
2 files changed, 25 insertions, 2 deletions
diff --git a/objects/id.go b/objects/id.go index 224b3cd..047fada 100644 --- a/objects/id.go +++ b/objects/id.go @@ -39,7 +39,7 @@ type ObjectId struct { Sum []byte } -func (oid ObjectId) wellformed() bool { +func (oid ObjectId) Wellformed() bool { return oid.Algo.checkAlgo() && len(oid.Sum) == oid.Algo.sumLength() } @@ -61,13 +61,19 @@ func ParseObjectId(s string) (oid ObjectId, err error) { return } - if !oid.wellformed() { + if !oid.Wellformed() { err = errors.New("Object ID is malformed") } return } +// Set implements flag.Value for ObjectId +func (oid *ObjectId) Set(s string) (err error) { + *oid, err = ParseObjectId(s) + return +} + func MustParseObjectId(s string) ObjectId { id, err := ParseObjectId(s) if err != nil { diff --git a/objects/object_snapshot.go b/objects/object_snapshot.go index 7edbc2a..e86484d 100644 --- a/objects/object_snapshot.go +++ b/objects/object_snapshot.go @@ -23,6 +23,7 @@ type Snapshot struct { Archive string Comment string Signed bool + raw []byte } func (s Snapshot) Type() ObjectType { @@ -62,6 +63,20 @@ func (s Snapshot) Payload() (out []byte) { return out } +type Verifyer interface { + Verify([]byte) error +} + +// Verify verifies that the snapshot has a valid signature. +// Only works with unserialized snapshots, i.e. a freshly created snapshot can not be verified. +func (s Snapshot) Verify(v Verifyer) error { + if !s.Signed { + return nil + } + + return v.Verify(s.raw) +} + type Signer interface { Sign([]byte) ([]byte, error) } @@ -73,6 +88,8 @@ func (s Snapshot) SignedPayload(signer Signer) ([]byte, error) { func (s *Snapshot) FromPayload(payload []byte) error { r := bytes.NewBuffer(payload) + s.raw = payload + seenArchive := false seenDate := false seenTree := false |