func (e *SaltpackSenderIdentify) identifySender(ctx *Context) (err error) {
	defer e.G().Trace("SaltpackDecrypt::identifySender", func() error { return err })()

	var lin bool
	var uid keybase1.UID
	if lin, uid, err = IsLoggedIn(e, ctx); err == nil && lin && uid.Equal(e.res.Uid) {
		e.G().Log.Debug("| Sender is self")
		e.res.SenderType = keybase1.SaltpackSenderType_SELF
		return nil
	}

	iarg := keybase1.Identify2Arg{
		Uid:                   e.res.Uid,
		UseDelegateUI:         !e.arg.interactive,
		AlwaysBlock:           e.arg.interactive,
		ForceRemoteCheck:      e.arg.forceRemoteCheck,
		NoErrorOnTrackFailure: true,
		Reason:                e.arg.reason,
		UserAssertion:         e.arg.userAssertion,
	}
	eng := NewIdentify2WithUID(e.G(), &iarg)
	if err = RunEngine(eng, ctx); err != nil {
		return err
	}
	switch eng.getTrackType() {
	case identify2NoTrack:
		e.res.SenderType = keybase1.SaltpackSenderType_NOT_TRACKED
	case identify2TrackOK:
		e.res.SenderType = keybase1.SaltpackSenderType_TRACKING_OK
	default:
		e.res.SenderType = keybase1.SaltpackSenderType_TRACKING_BROKE
	}
	return nil
}
Exemplo n.º 2
0
func (sc *SigChain) LoadFromServer(t *MerkleTriple, selfUID keybase1.UID) (dirtyTail *MerkleTriple, err error) {
	low := sc.GetLastLoadedSeqno()
	sc.loadedFromLinkOne = (low == Seqno(0) || low == Seqno(-1))

	sc.G().Log.Debug("+ Load SigChain from server (uid=%s, low=%d)", sc.uid, low)
	defer func() { sc.G().Log.Debug("- Loaded SigChain -> %s", ErrToOk(err)) }()

	res, err := G.API.Get(APIArg{
		Endpoint:    "sig/get",
		NeedSession: false,
		Args: HTTPArgs{
			"uid": UIDArg(sc.uid),
			"low": I{int(low)},
		},
	})

	if err != nil {
		return
	}

	v := res.Body.AtKey("sigs")
	var lim int
	if lim, err = v.Len(); err != nil {
		return
	}

	foundTail := false

	sc.G().Log.Debug("| Got back %d new entries", lim)

	var links []*ChainLink
	var tail *ChainLink

	for i := 0; i < lim; i++ {
		var link *ChainLink
		if link, err = ImportLinkFromServer(sc.G(), sc, v.AtIndex(i), selfUID); err != nil {
			return
		}
		if link.GetSeqno() <= low {
			continue
		}
		if selfUID.Equal(link.GetUID()) {
			sc.G().Log.Debug("| Setting isOwnNewLinkFromServer=true for seqno %d", link.GetSeqno())
			link.isOwnNewLinkFromServer = true
		}
		links = append(links, link)
		if !foundTail && t != nil {
			if foundTail, err = link.checkAgainstMerkleTree(t); err != nil {
				return
			}
		}
		tail = link
	}

	if t != nil && !foundTail {
		err = NewServerChainError("Failed to reach (%s, %d) in server response",
			t.LinkID, int(t.Seqno))
		return
	}

	if tail != nil {
		dirtyTail = tail.ToMerkleTriple()

		// If we've stored a `last` and it's less than the one
		// we just loaded, then nuke it.
		if sc.localChainTail != nil && sc.localChainTail.Less(*dirtyTail) {
			sc.G().Log.Debug("| Clear cached last (%d < %d)", sc.localChainTail.Seqno, dirtyTail.Seqno)
			sc.localChainTail = nil
			sc.localCki = nil
		}
	}

	sc.chainLinks = append(sc.chainLinks, links...)
	return
}