1 files changed, 56 insertions, 1 deletions
diff --git a/dashboard/inmemory.go b/dashboard/inmemory.go
index 82412cb..0548494 100644
--- a/dashboard/inmemory.go
+++ b/dashboard/inmemory.go
@@ -24,6 +24,10 @@ type auction struct {
 	description *seal.SignedDescription
 	state       AuctionState
 	round       uint8 // which bit has been completed
+	canceled    struct {
+		reason SignedMessage
+		by     string // bidderId
+	}
 
 	commitments map[string]SignedCommitment
 	messages    map[string][]SignedMessage // per-bidder and per-round messages, pre-allocated.
@@ -183,5 +187,56 @@ func (m *inmemory) Publish(auctionId string, round uint8, message SignedMessage,
 }
 
 func (m *inmemory) Messages(auctionId string, round uint8) (messages map[string]SignedMessage, e error) {
-	return nil, fmt.Errorf("inmemory.Messages not implemented")
+	auction, e := m.getAuction(auctionId)
+	if e != nil {
+		return nil, e
+	}
+
+	auction.RLock()
+	defer auction.RUnlock()
+
+	if auction.round <= round {
+		return nil, ErrAuctionInvalidRound
+	}
+
+	messages = make(map[string]SignedMessage)
+	for id, msgs := range auction.messages {
+		messages[id] = msgs[round]
+	}
+
+	return messages, nil
+}
+
+func (m *inmemory) Cancel(auctionId string, reason SignedMessage, publickey ed25519.PublicKey) error {
+	if !reason.Verify(publickey) {
+		return ErrBidderIncorrectSignature
+	}
+
+	bidderId := Pub2String(publickey)
+
+	auction, e := m.getAuction(auctionId)
+	if e != nil {
+		return e
+	}
+
+	auction.Lock()
+	defer auction.Unlock()
+
+	if auction.state != AuctionStateRunning {
+		return ErrAuctionNotRunning
+	}
+
+	if _, known := auction.commitments[bidderId]; !known {
+		return ErrBidderUnknown
+	}
+
+	auction.state = AuctionStateCanceled
+	auction.canceled.reason = reason
+	auction.canceled.by = bidderId
+
+	return nil
+}
+
+func (m *inmemory) Result(auctionId string) (price uint64, winner ed25519.PublicKey, e error) {
+	return 0, nil, fmt.Errorf("Result not implemented")
 }
 \ No newline at end of file