// IndexUpdate is called for incremental updates to connected nodes' indexes.
// Implements the protocol.Model interface.
func (m *Model) IndexUpdate(nodeID protocol.NodeID, repo string, fs []protocol.FileInfo) {
if debug {
l.Debugf("IDXUP(in): %s / %q: %d files", nodeID, repo, len(fs))
}
if !m.repoSharedWith(repo, nodeID) {
l.Warnf("Unexpected repository ID %q sent from node %q; ensure that the repository exists and that this node is selected under \"Share With\" in the repository configuration.", repo, nodeID)
return
}
m.rmut.RLock()
r, ok := m.repoFiles[repo]
m.rmut.RUnlock()
if ok {
r.Update(nodeID, fs)
} else {
l.Fatalf("IndexUpdate for nonexistant repo %q", repo)
}
events.Default.Log(events.RemoteIndexUpdated, map[string]interface{}{
"node": nodeID.String(),
"repo": repo,
"items": len(fs),
"version": r.LocalVersion(nodeID),
})
}
func (d *Discoverer) Hint(node string, addrs []string) {
resAddrs := resolveAddrs(addrs)
var id protocol.NodeID
id.UnmarshalText([]byte(node))
d.registerNode(nil, Node{
Addresses: resAddrs,
ID: id[:],
})
}
func handleQueryV2(conn *net.UDPConn, addr *net.UDPAddr, buf []byte) {
var pkt discover.Query
err := pkt.UnmarshalXDR(buf)
if err != nil {
log.Println("QueryV2 Unmarshal:", err)
log.Println(hex.Dump(buf))
return
}
if debug {
log.Printf("<- %v %#v", addr, pkt)
}
var id protocol.NodeID
if len(pkt.NodeID) == 32 {
// Raw node ID
copy(id[:], pkt.NodeID)
} else {
id.UnmarshalText(pkt.NodeID)
}
lock.Lock()
node, ok := nodes[id]
queries++
lock.Unlock()
if ok && len(node.addresses) > 0 {
ann := discover.Announce{
Magic: discover.AnnouncementMagic,
This: discover.Node{
ID: pkt.NodeID,
},
}
for _, addr := range node.addresses {
ann.This.Addresses = append(ann.This.Addresses, discover.Address{IP: addr.ip, Port: addr.port})
}
if debug {
log.Printf("-> %v %#v", addr, pkt)
}
tb := ann.MarshalXDR()
_, _, err = conn.WriteMsgUDP(tb, nil, addr)
if err != nil {
log.Println("QueryV2 response write:", err)
}
lock.Lock()
answered++
lock.Unlock()
}
}
func handleAnnounceV2(addr *net.UDPAddr, buf []byte) {
var pkt discover.Announce
err := pkt.UnmarshalXDR(buf)
if err != nil && err != io.EOF {
log.Println("AnnounceV2 Unmarshal:", err)
log.Println(hex.Dump(buf))
return
}
if debug {
log.Printf("<- %v %#v", addr, pkt)
}
lock.Lock()
announces++
lock.Unlock()
ip := addr.IP.To4()
if ip == nil {
ip = addr.IP.To16()
}
var addrs []address
for _, addr := range pkt.This.Addresses {
tip := addr.IP
if len(tip) == 0 {
tip = ip
}
addrs = append(addrs, address{
ip: tip,
port: addr.Port,
})
}
node := node{
addresses: addrs,
updated: time.Now(),
}
var id protocol.NodeID
if len(pkt.This.ID) == 32 {
// Raw node ID
copy(id[:], pkt.This.ID)
} else {
id.UnmarshalText(pkt.This.ID)
}
lock.Lock()
nodes[id] = node
lock.Unlock()
}
// Close removes the peer from the model and closes the underlying connection if possible.
// Implements the protocol.Model interface.
func (m *Model) Close(node protocol.NodeID, err error) {
l.Infof("Connection to %s closed: %v", node, err)
events.Default.Log(events.NodeDisconnected, map[string]string{
"id": node.String(),
"error": err.Error(),
})
m.pmut.Lock()
m.rmut.RLock()
for _, repo := range m.nodeRepos[node] {
m.repoFiles[repo].Replace(node, nil)
}
m.rmut.RUnlock()
conn, ok := m.rawConn[node]
if ok {
conn.Close()
}
delete(m.protoConn, node)
delete(m.rawConn, node)
delete(m.nodeVer, node)
m.pmut.Unlock()
}
func (d *Discoverer) registerNode(addr net.Addr, node Node) bool {
var addrs []string
for _, a := range node.Addresses {
var nodeAddr string
if len(a.IP) > 0 {
nodeAddr = fmt.Sprintf("%s:%d", net.IP(a.IP), a.Port)
addrs = append(addrs, nodeAddr)
} else if addr != nil {
ua := addr.(*net.UDPAddr)
ua.Port = int(a.Port)
nodeAddr = ua.String()
addrs = append(addrs, nodeAddr)
}
}
if len(addrs) == 0 {
if debug {
l.Debugln("discover: no valid address for", node.ID)
}
}
if debug {
l.Debugf("discover: register: %s -> %#v", node.ID, addrs)
}
var id protocol.NodeID
copy(id[:], node.ID)
d.registryLock.Lock()
_, seen := d.registry[id]
d.registry[id] = addrs
d.registryLock.Unlock()
if !seen {
events.Default.Log(events.NodeDiscovered, map[string]interface{}{
"node": id.String(),
"addrs": addrs,
})
}
return !seen
}