// 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 {
if conn, ok := conn.(*tls.Conn); ok {
// If the underlying connection is a *tls.Conn, Close() does more
// than it says on the tin. Specifically, it sends a TLS alert
// message, which might block forever if the connection is dead
// and we don't have a deadline site.
conn.SetWriteDeadline(time.Now().Add(250 * time.Millisecond))
}
conn.Close()
}
delete(m.protoConn, node)
delete(m.rawConn, node)
delete(m.nodeVer, node)
m.pmut.Unlock()
}
// 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.Infof("Update for 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
}
for i := range fs {
lamport.Default.Tick(fs[i].Version)
}
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),
})
}
// Index is called when a new node is connected and we receive their full index.
// Implements the protocol.Model interface.
func (m *Model) Index(nodeID protocol.NodeID, repo string, fs []protocol.FileInfo) {
if debug {
l.Debugf("IDX(in): %s %q: %d files", nodeID, repo, len(fs))
}
if !m.repoSharedWith(repo, nodeID) {
events.Default.Log(events.RepoRejected, map[string]string{
"repo": repo,
"node": nodeID.String(),
})
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()
files, ok := m.repoFiles[repo]
ignores, _ := m.repoIgnores[repo]
m.rmut.RUnlock()
if !ok {
l.Fatalf("Index for nonexistant repo %q", repo)
}
for i := 0; i < len(fs); {
lamport.Default.Tick(fs[i].Version)
if ignores.Match(fs[i].Name) {
fs[i] = fs[len(fs)-1]
fs = fs[:len(fs)-1]
} else {
i++
}
}
files.Replace(nodeID, fs)
events.Default.Log(events.RemoteIndexUpdated, map[string]interface{}{
"node": nodeID.String(),
"repo": repo,
"items": len(fs),
"version": files.LocalVersion(nodeID),
})
}
// 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
}