fix: store canonical replica addresses in heartbeat state

setupReplicaReceiver now reads back canonical addresses from
the ReplicaReceiver (which applies CP13-2 canonicalization)
instead of storing raw assignment addresses in replStates.

This fixes the API-level leak where replica_data_addr showed
":port" instead of "ip:port" in /block/volumes responses,
even though the engine-level CP13-2 fix was working.

New BlockVol.ReplicaReceiverAddr() returns canonical addresses
from the running receiver. Falls back to assignment addresses
if receiver didn't report.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

weed/server/volume_server_block.go

@@ -421,22 +421,40 @@ func (bs *BlockService) setupPrimaryReplicationMulti(path string, addrs []blockv
 
 // setupReplicaReceiver starts the replica WAL receiver.
 func (bs *BlockService) setupReplicaReceiver(path, dataAddr, ctrlAddr string) {
+	// Store canonical addresses from the receiver (not raw assignment addresses).
+	// The receiver canonicalizes wildcard ":port" to "ip:port" via CP13-2.
+	var canonDataAddr, canonCtrlAddr string
 	if err := bs.blockStore.WithVolume(path, func(vol *blockvol.BlockVol) error {
-		return vol.StartReplicaReceiver(dataAddr, ctrlAddr)
+		if err := vol.StartReplicaReceiver(dataAddr, ctrlAddr); err != nil {
+			return err
+		}
+		// Read back canonical addresses from the receiver.
+		if vol.ReplicaReceiverAddr() != nil {
+			canonDataAddr = vol.ReplicaReceiverAddr().DataAddr
+			canonCtrlAddr = vol.ReplicaReceiverAddr().CtrlAddr
+		}
+		return nil
 	}); err != nil {
 		glog.Warningf("block service: setup replica receiver %s: %v", path, err)
 		return
 	}
+	// Fallback to assignment addresses if receiver didn't report.
+	if canonDataAddr == "" {
+		canonDataAddr = dataAddr
+	}
+	if canonCtrlAddr == "" {
+		canonCtrlAddr = ctrlAddr
+	}
 	bs.replMu.Lock()
 	if bs.replStates == nil {
 		bs.replStates = make(map[string]*volReplState)
 	}
 	bs.replStates[path] = &volReplState{
-		replicaDataAddr: dataAddr,
-		replicaCtrlAddr: ctrlAddr,
+		replicaDataAddr: canonDataAddr,
+		replicaCtrlAddr: canonCtrlAddr,
 	}
 	bs.replMu.Unlock()
-	glog.V(0).Infof("block service: replica %s receiving on %s/%s", path, dataAddr, ctrlAddr)
+	glog.V(0).Infof("block service: replica %s receiving on %s/%s", path, canonDataAddr, canonCtrlAddr)
 }
 
 // startRebuild starts a rebuild in the background.

weed/storage/blockvol/blockvol.go

@@ -864,6 +864,25 @@ func (v *BlockVol) ReplicaShipperStates() []ReplicaShipperStatus {
 	return v.shipperGroup.ShipperStates()
 }
 
+// ReplicaReceiverAddrInfo holds canonical addresses from the replica receiver.
+type ReplicaReceiverAddrInfo struct {
+	DataAddr string
+	CtrlAddr string
+}
+
+// ReplicaReceiverAddr returns the canonical addresses of the replica receiver,
+// or nil if no receiver is running. Used by the VS to store canonical addresses
+// in heartbeat state instead of raw assignment addresses.
+func (v *BlockVol) ReplicaReceiverAddr() *ReplicaReceiverAddrInfo {
+	if v.replRecv == nil {
+		return nil
+	}
+	return &ReplicaReceiverAddrInfo{
+		DataAddr: v.replRecv.DataAddr(),
+		CtrlAddr: v.replRecv.CtrlAddr(),
+	}
+}
+
 // StartReplicaReceiver starts listening for replicated WAL entries from a primary.
 func (v *BlockVol) StartReplicaReceiver(dataAddr, ctrlAddr string) error {
 	recv, err := NewReplicaReceiver(v, dataAddr, ctrlAddr)