func restGetPeerCompletion(m *model.Model, w http.ResponseWriter, r *http.Request) {
tot := map[string]float64{}
count := map[string]float64{}
for _, repo := range cfg.Repositories {
for _, node := range repo.NodeIDs() {
nodeStr := node.String()
if m.ConnectedTo(node) {
tot[nodeStr] += m.Completion(node, repo.ID)
} else {
tot[nodeStr] = 0
}
count[nodeStr]++
}
}
comp := map[string]int{}
for node := range tot {
comp[node] = int(tot[node] / count[node])
}
w.Header().Set("Content-Type", "application/json; charset=utf-8")
json.NewEncoder(w).Encode(comp)
}
func dialTLS(m *model.Model, conns chan *tls.Conn, tlsCfg *tls.Config) {
var delay time.Duration = 1 * time.Second
for {
nextNode:
for _, nodeCfg := range cfg.Nodes {
if nodeCfg.NodeID == myID {
continue
}
if m.ConnectedTo(nodeCfg.NodeID) {
continue
}
var addrs []string
for _, addr := range nodeCfg.Addresses {
if addr == "dynamic" {
if discoverer != nil {
t := discoverer.Lookup(nodeCfg.NodeID)
if len(t) == 0 {
continue
}
addrs = append(addrs, t...)
}
} else {
addrs = append(addrs, addr)
}
}
for _, addr := range addrs {
host, port, err := net.SplitHostPort(addr)
if err != nil && strings.HasPrefix(err.Error(), "missing port") {
// addr is on the form "1.2.3.4"
addr = net.JoinHostPort(addr, "22000")
} else if err == nil && port == "" {
// addr is on the form "1.2.3.4:"
addr = net.JoinHostPort(host, "22000")
}
if debugNet {
l.Debugln("dial", nodeCfg.NodeID, addr)
}
raddr, err := net.ResolveTCPAddr("tcp", addr)
if err != nil {
if debugNet {
l.Debugln(err)
}
continue
}
conn, err := net.DialTCP("tcp", nil, raddr)
if err != nil {
if debugNet {
l.Debugln(err)
}
continue
}
setTCPOptions(conn)
tc := tls.Client(conn, tlsCfg)
err = tc.Handshake()
if err != nil {
l.Infoln("TLS handshake:", err)
tc.Close()
continue
}
conns <- tc
continue nextNode
}
}
time.Sleep(delay)
delay *= 2
if maxD := time.Duration(cfg.Options.ReconnectIntervalS) * time.Second; delay > maxD {
delay = maxD
}
}
}
func listenConnect(myID protocol.NodeID, m *model.Model, tlsCfg *tls.Config) {
var conns = make(chan *tls.Conn)
// Listen
for _, addr := range cfg.Options.ListenAddress {
go listenTLS(conns, addr, tlsCfg)
}
// Connect
go dialTLS(m, conns, tlsCfg)
next:
for conn := range conns {
certs := conn.ConnectionState().PeerCertificates
if cl := len(certs); cl != 1 {
l.Infof("Got peer certificate list of length %d != 1 from %s; protocol error", cl, conn.RemoteAddr())
conn.Close()
continue
}
remoteCert := certs[0]
remoteID := protocol.NewNodeID(remoteCert.Raw)
if remoteID == myID {
l.Infof("Connected to myself (%s) - should not happen", remoteID)
conn.Close()
continue
}
if m.ConnectedTo(remoteID) {
l.Infof("Connected to already connected node (%s)", remoteID)
conn.Close()
continue
}
for _, nodeCfg := range cfg.Nodes {
if nodeCfg.NodeID == remoteID {
// Verify the name on the certificate. By default we set it to
// "syncthing" when generating, but the user may have replaced
// the certificate and used another name.
certName := nodeCfg.CertName
if certName == "" {
certName = "syncthing"
}
err := remoteCert.VerifyHostname(certName)
if err != nil {
// Incorrect certificate name is something the user most
// likely wants to know about, since it's an advanced
// config. Warn instead of Info.
l.Warnf("Bad certificate from %s (%v): %v", remoteID, conn.RemoteAddr(), err)
conn.Close()
continue next
}
// If rate limiting is set, we wrap the write side of the
// connection in a limiter.
var wr io.Writer = conn
if rateBucket != nil {
wr = &limitedWriter{conn, rateBucket}
}
name := fmt.Sprintf("%s-%s", conn.LocalAddr(), conn.RemoteAddr())
protoConn := protocol.NewConnection(remoteID, conn, wr, m, name, nodeCfg.Compression)
l.Infof("Established secure connection to %s at %s", remoteID, name)
if debugNet {
l.Debugf("cipher suite %04X", conn.ConnectionState().CipherSuite)
}
events.Default.Log(events.NodeConnected, map[string]string{
"id": remoteID.String(),
"addr": conn.RemoteAddr().String(),
})
m.AddConnection(conn, protoConn)
continue next
}
}
events.Default.Log(events.NodeRejected, map[string]string{
"node": remoteID.String(),
"address": conn.RemoteAddr().String(),
})
l.Infof("Connection from %s with unknown node ID %s; ignoring", conn.RemoteAddr(), remoteID)
conn.Close()
}
}
