func newStaticClient(uri *url.URL, certs []tls.Certificate, invitations chan protocol.SessionInvitation, timeout time.Duration) RelayClient {
closeInvitationsOnFinish := false
if invitations == nil {
closeInvitationsOnFinish = true
invitations = make(chan protocol.SessionInvitation)
}
return &staticClient{
uri: uri,
invitations: invitations,
closeInvitationsOnFinish: closeInvitationsOnFinish,
config: configForCerts(certs),
messageTimeout: time.Minute * 2,
connectTimeout: timeout,
stop: make(chan struct{}),
stopped: make(chan struct{}),
mut: sync.NewRWMutex(),
connected: false,
}
}
func newDynamicClient(uri *url.URL, certs []tls.Certificate, invitations chan protocol.SessionInvitation, timeout time.Duration) RelayClient {
closeInvitationsOnFinish := false
if invitations == nil {
closeInvitationsOnFinish = true
invitations = make(chan protocol.SessionInvitation)
}
return &dynamicClient{
pooladdr: uri,
certs: certs,
invitations: invitations,
closeInvitationsOnFinish: closeInvitationsOnFinish,
timeout: timeout,
mut: sync.NewRWMutex(),
}
}
func NewService(cfg *config.Wrapper, tlsCfg *tls.Config) *Service {
conns := make(chan *tls.Conn)
service := &Service{
Supervisor: suture.New("Service", suture.Spec{
Log: func(log string) {
l.Debugln(log)
},
FailureBackoff: 5 * time.Minute,
FailureDecay: float64((10 * time.Minute) / time.Second),
FailureThreshold: 5,
}),
cfg: cfg,
tlsCfg: tlsCfg,
tokens: make(map[string]suture.ServiceToken),
clients: make(map[string]client.RelayClient),
mut: sync.NewRWMutex(),
invitations: make(chan protocol.SessionInvitation),
conns: conns,
}
rcfg := cfg.Raw()
service.CommitConfiguration(rcfg, rcfg)
cfg.Subscribe(service)
receiver := &invitationReceiver{
tlsCfg: tlsCfg,
conns: conns,
invitations: service.invitations,
stop: make(chan struct{}),
}
eventBc := &eventBroadcaster{
Service: service,
stop: make(chan struct{}),
}
service.Add(receiver)
service.Add(eventBc)
return service
}
func NewCachingMux() *CachingMux {
return &CachingMux{
Supervisor: suture.NewSimple("discover.cachingMux"),
mut: sync.NewRWMutex(),
}
}
func (s *apiService) Serve() {
s.listenerMut.Lock()
listener := s.listener
s.listenerMut.Unlock()
if listener == nil {
// Not much we can do here other than exit quickly. The supervisor
// will log an error at some point.
return
}
// The GET handlers
getRestMux := http.NewServeMux()
getRestMux.HandleFunc("/rest/db/completion", s.getDBCompletion) // device folder
getRestMux.HandleFunc("/rest/db/file", s.getDBFile) // folder file
getRestMux.HandleFunc("/rest/db/ignores", s.getDBIgnores) // folder
getRestMux.HandleFunc("/rest/db/need", s.getDBNeed) // folder [perpage] [page]
getRestMux.HandleFunc("/rest/db/status", s.getDBStatus) // folder
getRestMux.HandleFunc("/rest/db/browse", s.getDBBrowse) // folder [prefix] [dirsonly] [levels]
getRestMux.HandleFunc("/rest/events", s.getEvents) // since [limit]
getRestMux.HandleFunc("/rest/stats/device", s.getDeviceStats) // -
getRestMux.HandleFunc("/rest/stats/folder", s.getFolderStats) // -
getRestMux.HandleFunc("/rest/svc/deviceid", s.getDeviceID) // id
getRestMux.HandleFunc("/rest/svc/lang", s.getLang) // -
getRestMux.HandleFunc("/rest/svc/report", s.getReport) // -
getRestMux.HandleFunc("/rest/system/browse", s.getSystemBrowse) // current
getRestMux.HandleFunc("/rest/system/config", s.getSystemConfig) // -
getRestMux.HandleFunc("/rest/system/config/insync", s.getSystemConfigInsync) // -
getRestMux.HandleFunc("/rest/system/connections", s.getSystemConnections) // -
getRestMux.HandleFunc("/rest/system/discovery", s.getSystemDiscovery) // -
getRestMux.HandleFunc("/rest/system/error", s.getSystemError) // -
getRestMux.HandleFunc("/rest/system/ping", s.restPing) // -
getRestMux.HandleFunc("/rest/system/status", s.getSystemStatus) // -
getRestMux.HandleFunc("/rest/system/upgrade", s.getSystemUpgrade) // -
getRestMux.HandleFunc("/rest/system/version", s.getSystemVersion) // -
getRestMux.HandleFunc("/rest/system/debug", s.getSystemDebug) // -
getRestMux.HandleFunc("/rest/system/log", s.getSystemLog) // [since]
getRestMux.HandleFunc("/rest/system/log.txt", s.getSystemLogTxt) // [since]
// The POST handlers
postRestMux := http.NewServeMux()
postRestMux.HandleFunc("/rest/db/prio", s.postDBPrio) // folder file [perpage] [page]
postRestMux.HandleFunc("/rest/db/ignores", s.postDBIgnores) // folder
postRestMux.HandleFunc("/rest/db/override", s.postDBOverride) // folder
postRestMux.HandleFunc("/rest/db/scan", s.postDBScan) // folder [sub...] [delay]
postRestMux.HandleFunc("/rest/system/config", s.postSystemConfig) // <body>
postRestMux.HandleFunc("/rest/system/error", s.postSystemError) // <body>
postRestMux.HandleFunc("/rest/system/error/clear", s.postSystemErrorClear) // -
postRestMux.HandleFunc("/rest/system/ping", s.restPing) // -
postRestMux.HandleFunc("/rest/system/reset", s.postSystemReset) // [folder]
postRestMux.HandleFunc("/rest/system/restart", s.postSystemRestart) // -
postRestMux.HandleFunc("/rest/system/shutdown", s.postSystemShutdown) // -
postRestMux.HandleFunc("/rest/system/upgrade", s.postSystemUpgrade) // -
postRestMux.HandleFunc("/rest/system/pause", s.postSystemPause) // device
postRestMux.HandleFunc("/rest/system/resume", s.postSystemResume) // device
postRestMux.HandleFunc("/rest/system/debug", s.postSystemDebug) // [enable] [disable]
// Debug endpoints, not for general use
getRestMux.HandleFunc("/rest/debug/peerCompletion", s.getPeerCompletion)
getRestMux.HandleFunc("/rest/debug/httpmetrics", s.getSystemHTTPMetrics)
// A handler that splits requests between the two above and disables
// caching
restMux := noCacheMiddleware(metricsMiddleware(getPostHandler(getRestMux, postRestMux)))
// The main routing handler
mux := http.NewServeMux()
mux.Handle("/rest/", restMux)
mux.HandleFunc("/qr/", s.getQR)
// Serve compiled in assets unless an asset directory was set (for development)
assets := &embeddedStatic{
theme: s.cfg.GUI().Theme,
lastModified: time.Now(),
mut: sync.NewRWMutex(),
assetDir: s.assetDir,
assets: auto.Assets(),
}
mux.Handle("/", assets)
s.cfg.Subscribe(assets)
guiCfg := s.cfg.GUI()
// Wrap everything in CSRF protection. The /rest prefix should be
// protected, other requests will grant cookies.
handler := csrfMiddleware(s.id.String()[:5], "/rest", guiCfg, mux)
// Add the CORS handling
handler = corsMiddleware(handler)
// Add our version and ID as a header to responses
handler = withDetailsMiddleware(s.id, handler)
// Wrap everything in basic auth, if user/password is set.
if len(guiCfg.User) > 0 && len(guiCfg.Password) > 0 {
handler = basicAuthAndSessionMiddleware("sessionid-"+s.id.String()[:5], guiCfg, handler)
}
// Redirect to HTTPS if we are supposed to
if guiCfg.UseTLS() {
handler = redirectToHTTPSMiddleware(handler)
}
handler = debugMiddleware(handler)
srv := http.Server{
Handler: handler,
ReadTimeout: 10 * time.Second,
}
s.fss = newFolderSummaryService(s.cfg, s.model)
defer s.fss.Stop()
s.fss.ServeBackground()
l.Infoln("API listening on", listener.Addr())
l.Infoln("GUI URL is", guiCfg.URL())
if s.started != nil {
// only set when run by the tests
close(s.started)
}
err := srv.Serve(listener)
// The return could be due to an intentional close. Wait for the stop
// signal before returning. IF there is no stop signal within a second, we
// assume it was unintentional and log the error before retrying.
select {
case <-s.stop:
case <-s.configChanged:
case <-time.After(time.Second):
l.Warnln("API:", err)
}
}
go restart()
}
func (s *apiService) postSystemShutdown(w http.ResponseWriter, r *http.Request) {
s.flushResponse(`{"ok": "shutting down"}`, w)
go shutdown()
}
func (s *apiService) flushResponse(resp string, w http.ResponseWriter) {
w.Write([]byte(resp + "\n"))
f := w.(http.Flusher)
f.Flush()
}
var cpuUsagePercent [10]float64 // The last ten seconds
var cpuUsageLock = sync.NewRWMutex()
func (s *apiService) getSystemStatus(w http.ResponseWriter, r *http.Request) {
var m runtime.MemStats
runtime.ReadMemStats(&m)
tilde, _ := osutil.ExpandTilde("~")
res := make(map[string]interface{})
res["myID"] = myID.String()
res["goroutines"] = runtime.NumGoroutine()
res["alloc"] = m.Alloc
res["sys"] = m.Sys - m.HeapReleased
res["tilde"] = tilde
if s.cfg.Options().LocalAnnEnabled || s.cfg.Options().GlobalAnnEnabled {
res["discoveryEnabled"] = true
discoErrors := make(map[string]string)
