func loggerAndStats() (log.Modular, metrics.Aggregator) {
logConf := log.NewLoggerConfig()
logConf.LogLevel = "OFF"
logger := log.NewLogger(os.Stdout, logConf)
stats := metrics.DudType{}
return logger, stats
}
func loggerAndStats() (*log.Logger, *log.Stats) {
logConf := log.DefaultLoggerConfig()
logConf.LogLevel = "OFF"
logger := log.NewLogger(os.Stdout, logConf)
stats := log.NewStats(log.DefaultStatsConfig())
return logger, stats
}
func main() {
var (
err error
closeChan = make(chan bool)
)
leapsConfig := LeapsConfig{
NumProcesses: runtime.NumCPU(),
LoggerConfig: log.DefaultLoggerConfig(),
StatsConfig: log.DefaultStatsConfig(),
RiemannConfig: log.NewRiemannClientConfig(),
StoreConfig: store.NewConfig(),
AuthenticatorConfig: auth.NewConfig(),
CuratorConfig: lib.DefaultCuratorConfig(),
HTTPServerConfig: net.DefaultHTTPServerConfig(),
InternalServerConfig: net.NewInternalServerConfig(),
StatsServerConfig: log.DefaultStatsServerConfig(),
}
// A list of default config paths to check for if not explicitly defined
defaultPaths := []string{}
/* If we manage to get the path of our executable then we want to try and find config files
* relative to that path, we always check from the parent folder since we assume leaps is
* stored within the bin folder.
*/
if executablePath, err := path.BinaryPath(); err == nil {
defaultPaths = append(defaultPaths, filepath.Join(executablePath, "..", "config.yaml"))
defaultPaths = append(defaultPaths, filepath.Join(executablePath, "..", "config", "leaps.yaml"))
defaultPaths = append(defaultPaths, filepath.Join(executablePath, "..", "config.json"))
defaultPaths = append(defaultPaths, filepath.Join(executablePath, "..", "config", "leaps.json"))
}
defaultPaths = append(defaultPaths, []string{
filepath.Join(".", "leaps.yaml"),
filepath.Join(".", "leaps.json"),
"/etc/leaps.yaml",
"/etc/leaps.json",
"/etc/leaps/config.yaml",
"/etc/leaps/config.json",
}...)
// Load configuration etc
if !util.Bootstrap(&leapsConfig, defaultPaths...) {
return
}
if len(*sharePathOverride) > 0 {
leapsConfig.AuthenticatorConfig.FileConfig.SharePath = *sharePathOverride
leapsConfig.StoreConfig.StoreDirectory = *sharePathOverride
}
runtime.GOMAXPROCS(leapsConfig.NumProcesses)
// Logging and stats aggregation
logger := log.NewLogger(os.Stdout, leapsConfig.LoggerConfig)
stats := log.NewStats(leapsConfig.StatsConfig)
if riemannClient, err := log.NewRiemannClient(leapsConfig.RiemannConfig); err == nil {
logger.UseRiemann(riemannClient)
stats.UseRiemann(riemannClient)
defer riemannClient.Close()
} else if err != log.ErrEmptyConfigAddress {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Riemann client error: %v\n", err))
return
}
defer stats.Close()
fmt.Printf("Launching a leaps instance, use CTRL+C to close.\n\n")
// Document storage engine
documentStore, err := store.Factory(leapsConfig.StoreConfig)
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Document store error: %v\n", err))
return
}
// Authenticator
authenticator, err := auth.Factory(leapsConfig.AuthenticatorConfig, logger, stats)
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Authenticator error: %v\n", err))
return
}
// Curator of documents
curator, err := lib.NewCurator(leapsConfig.CuratorConfig, logger, stats, authenticator, documentStore)
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Curator error: %v\n", err))
return
}
defer curator.Close()
// HTTP API
leapHTTP, err := net.CreateHTTPServer(curator, leapsConfig.HTTPServerConfig, logger, stats)
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("HTTP error: %v\n", err))
return
}
defer leapHTTP.Stop()
go func() {
if httperr := leapHTTP.Listen(); httperr != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Http listen error: %v\n", httperr))
}
closeChan <- true
}()
var adminRegister register.EndpointRegister
// Internal admin HTTP API
if 0 < len(leapsConfig.InternalServerConfig.Address) {
adminHTTP, err := net.NewInternalServer(curator, leapsConfig.InternalServerConfig, logger, stats)
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Admin HTTP error: %v\n", err))
return
}
adminRegister = adminHTTP
go func() {
if httperr := adminHTTP.Listen(); httperr != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Admin HTTP listen error: %v\n", httperr))
}
closeChan <- true
}()
}
// Register for allowing other components to set API endpoints.
register := newEndpointsRegister(leapHTTP, adminRegister)
if err = authenticator.RegisterHandlers(register); err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Register authentication endpoints failed: %v\n", err))
return
}
// Internal Statistics HTTP API
statsServer, err := log.NewStatsServer(leapsConfig.StatsServerConfig, logger, stats)
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Stats error: %v\n", err))
return
}
go func() {
if statserr := statsServer.Listen(); statserr != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Stats server listen error: %v\n", statserr))
}
}()
sigChan := make(chan os.Signal, 1)
signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM)
// Wait for termination signal
select {
case <-sigChan:
case <-closeChan:
}
}
func logger() log.Modular {
logConf := log.NewLoggerConfig()
logConf.LogLevel = "OFF"
return log.NewLogger(os.Stdout, logConf)
}
func main() {
var (
err error
closeChan = make(chan bool)
)
flag.Usage = func() {
fmt.Println(`Usage: leaps [flags...] [path/to/share]
If a path is not specified the current directory is shared instead.
`)
flag.PrintDefaults()
}
flag.Parse()
targetPath := "."
if flag.NArg() == 1 {
targetPath = flag.Arg(0)
}
// Logging and metrics aggregation
logConf := log.NewLoggerConfig()
logConf.Prefix = "leaps"
logConf.LogLevel = *logLevel
logger := log.NewLogger(os.Stdout, logConf)
statConf := metrics.NewConfig()
statConf.Prefix = "leaps"
stats, err := metrics.New(statConf)
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Metrics init error: %v\n", err))
return
}
defer stats.Close()
logger.Infoln("Launching a leaps instance, use CTRL+C to close.")
// Document storage engine
docStore, err := store.NewFile(".")
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Document store error: %v\n", err))
return
}
// Authenticator
storeConf := acl.NewFileExistsConfig()
storeConf.Path = targetPath
storeConf.ShowHidden = *showHidden
authenticator := acl.NewFileExists(storeConf, logger)
// Curator of documents
curatorConf := curator.NewConfig()
curator, err := curator.New(curatorConf, logger, stats, authenticator, docStore)
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("Curator error: %v\n", err))
return
}
defer curator.Close()
handle("/endpoints", "Lists all available endpoints (including this one).",
func(w http.ResponseWriter, r *http.Request) {
data, reqErr := json.Marshal(endpoints)
if reqErr != nil {
logger.Errorf("Failed to serve endpoints: %v\n", reqErr)
http.Error(w, reqErr.Error(), http.StatusInternalServerError)
return
}
w.Header().Add("Content-Type", "application/json")
w.Write(data)
})
handle("/files", "Returns a list of available files and a map of users per document.",
func(w http.ResponseWriter, r *http.Request) {
var reqErr error
var users map[string][]string
if users, reqErr = curator.GetUsers(time.Second); reqErr == nil {
var data []byte
data, reqErr = json.Marshal(struct {
Paths []string `json:"paths"`
Users map[string][]string `json:"users"`
}{
Paths: authenticator.GetPaths(),
Users: users,
})
if reqErr == nil {
w.Write(data)
}
}
if reqErr != nil {
http.Error(w, reqErr.Error(), http.StatusInternalServerError)
logger.Errorf("Failed to serve users: %v\n", reqErr)
return
}
w.Header().Add("Content-Type", "application/json")
})
handle("/stats", "Lists all aggregated metrics as a json blob.", stats.JSONHandler())
wwwPath := gopath.Join("/", *subdirPath)
stripPath := ""
if wwwPath != "/" {
wwwPath = wwwPath + "/"
stripPath = wwwPath
}
if len(*debugWWWDir) > 0 {
logger.Warnf("Serving web files from alternative www dir: %v\n", *debugWWWDir)
http.Handle(wwwPath, http.StripPrefix(stripPath, http.FileServer(http.Dir(*debugWWWDir))))
} else {
http.Handle(wwwPath, http.StripPrefix(stripPath, http.FileServer(assetFS())))
}
http.Handle(gopath.Join("/", *subdirPath, "/leaps/ws"),
websocket.Handler(leaphttp.WebsocketHandler(curator, time.Second, logger, stats)))
go func() {
logger.Infof("Serving HTTP requests at: %v%v\n", *httpAddress, *subdirPath)
if httperr := http.ListenAndServe(*httpAddress, nil); httperr != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("HTTP listen error: %v\n", httperr))
}
closeChan <- true
}()
sigChan := make(chan os.Signal, 1)
signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM)
// Wait for termination signal
select {
case <-sigChan:
case <-closeChan:
}
}