fix self provisioning feature (#272)

internal/domain/peer.go

@@ -127,6 +127,19 @@ func (p *Peer) GenerateDisplayName(prefix string) {
 	p.DisplayName = fmt.Sprintf("%sPeer %s", prefix, internal.TruncateString(string(p.Identifier), 8))
 }
 
+// OverwriteUserEditableFields overwrites the user editable fields of the peer with the values from the userPeer
+func (p *Peer) OverwriteUserEditableFields(userPeer *Peer) {
+	p.DisplayName = userPeer.DisplayName
+	p.Interface.PublicKey = userPeer.Interface.PublicKey
+	p.Interface.PrivateKey = userPeer.Interface.PrivateKey
+	p.Interface.Mtu = userPeer.Interface.Mtu
+	p.PersistentKeepalive = userPeer.PersistentKeepalive
+	p.ExpiresAt = userPeer.ExpiresAt
+	p.Disabled = userPeer.Disabled
+	p.DisabledReason = userPeer.DisabledReason
+	p.PresharedKey = userPeer.PresharedKey
+}
+
 type PeerInterfaceConfig struct {
 	KeyPair // private/public Key of the peer