489 lines
11 KiB
Go
489 lines
11 KiB
Go
package main
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import (
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"context"
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"fmt"
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"os"
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"reflect"
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"sync/atomic"
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"gopkg.in/alecthomas/kingpin.v2"
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"github.com/aler9/rtsp-simple-server/internal/conf"
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"github.com/aler9/rtsp-simple-server/internal/confwatcher"
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"github.com/aler9/rtsp-simple-server/internal/hlsserver"
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"github.com/aler9/rtsp-simple-server/internal/logger"
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"github.com/aler9/rtsp-simple-server/internal/metrics"
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"github.com/aler9/rtsp-simple-server/internal/pathman"
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"github.com/aler9/rtsp-simple-server/internal/pprof"
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"github.com/aler9/rtsp-simple-server/internal/rlimit"
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"github.com/aler9/rtsp-simple-server/internal/rtmpserver"
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"github.com/aler9/rtsp-simple-server/internal/rtspserver"
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"github.com/aler9/rtsp-simple-server/internal/stats"
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)
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var version = "v0.0.0"
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type program struct {
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ctx context.Context
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ctxCancel func()
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confPath string
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conf *conf.Conf
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confFound bool
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stats *stats.Stats
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logger *logger.Logger
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metrics *metrics.Metrics
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pprof *pprof.PPROF
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pathMan *pathman.PathManager
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serverRTSPPlain *rtspserver.Server
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serverRTSPTLS *rtspserver.Server
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serverRTMP *rtmpserver.Server
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serverHLS *hlsserver.Server
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confWatcher *confwatcher.ConfWatcher
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// out
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done chan struct{}
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}
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func newProgram(args []string) (*program, bool) {
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k := kingpin.New("rtsp-simple-server",
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"rtsp-simple-server "+version+"\n\nRTSP server.")
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argVersion := k.Flag("version", "print version").Bool()
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argConfPath := k.Arg("confpath", "path to a config file. The default is rtsp-simple-server.yml.").Default("rtsp-simple-server.yml").String()
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kingpin.MustParse(k.Parse(args))
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if *argVersion {
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fmt.Println(version)
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os.Exit(0)
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}
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// on Linux, try to raise the number of file descriptors that can be opened
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// to allow the maximum possible number of clients
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// do not check for errors
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rlimit.Raise()
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ctx, ctxCancel := context.WithCancel(context.Background())
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p := &program{
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ctx: ctx,
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ctxCancel: ctxCancel,
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confPath: *argConfPath,
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done: make(chan struct{}),
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}
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var err error
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p.conf, p.confFound, err = conf.Load(p.confPath)
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if err != nil {
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fmt.Printf("ERR: %s\n", err)
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return nil, false
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}
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err = p.createResources(true)
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if err != nil {
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p.Log(logger.Info, "ERR: %s", err)
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p.closeResources(nil)
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return nil, false
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}
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if p.confFound {
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p.confWatcher, err = confwatcher.New(p.confPath)
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if err != nil {
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p.Log(logger.Info, "ERR: %s", err)
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p.closeResources(nil)
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return nil, false
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}
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}
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go p.run()
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return p, true
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}
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func (p *program) close() {
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p.ctxCancel()
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<-p.done
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}
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func (p *program) Log(level logger.Level, format string, args ...interface{}) {
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countPublishers := atomic.LoadInt64(p.stats.CountPublishers)
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countReaders := atomic.LoadInt64(p.stats.CountReaders)
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p.logger.Log(level, "[%d/%d] "+format, append([]interface{}{
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countPublishers, countReaders,
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}, args...)...)
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}
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func (p *program) run() {
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defer close(p.done)
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confChanged := func() chan struct{} {
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if p.confWatcher != nil {
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return p.confWatcher.Watch()
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}
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return make(chan struct{})
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}()
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outer:
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for {
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select {
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case <-confChanged:
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err := p.reloadConf()
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if err != nil {
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p.Log(logger.Info, "ERR: %s", err)
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break outer
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}
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case <-p.ctx.Done():
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break outer
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}
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}
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p.ctxCancel()
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p.closeResources(nil)
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if p.confWatcher != nil {
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p.confWatcher.Close()
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}
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}
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func (p *program) createResources(initial bool) error {
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var err error
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if p.stats == nil {
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p.stats = stats.New()
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}
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if p.logger == nil {
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p.logger, err = logger.New(
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p.conf.LogLevelParsed,
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p.conf.LogDestinationsParsed,
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p.conf.LogFile)
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if err != nil {
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return err
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}
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}
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if initial {
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p.Log(logger.Info, "rtsp-simple-server %s", version)
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if !p.confFound {
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p.Log(logger.Warn, "configuration file not found, using the default one")
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}
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}
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if p.conf.Metrics {
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if p.metrics == nil {
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p.metrics, err = metrics.New(
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p.conf.MetricsAddress,
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p.stats,
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p)
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if err != nil {
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return err
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}
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}
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}
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if p.conf.PPROF {
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if p.pprof == nil {
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p.pprof, err = pprof.New(
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p.conf.PPROFAddress,
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p)
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if err != nil {
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return err
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}
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}
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}
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if p.pathMan == nil {
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p.pathMan = pathman.New(
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p.ctx,
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p.conf.RTSPAddress,
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p.conf.ReadTimeout,
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p.conf.WriteTimeout,
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p.conf.ReadBufferCount,
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p.conf.ReadBufferSize,
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p.conf.AuthMethodsParsed,
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p.conf.Paths,
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p.stats,
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p)
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}
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if !p.conf.RTSPDisable &&
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(p.conf.EncryptionParsed == conf.EncryptionNo ||
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p.conf.EncryptionParsed == conf.EncryptionOptional) {
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if p.serverRTSPPlain == nil {
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_, useUDP := p.conf.ProtocolsParsed[conf.ProtocolUDP]
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p.serverRTSPPlain, err = rtspserver.New(
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p.ctx,
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p.conf.RTSPAddress,
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p.conf.ReadTimeout,
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p.conf.WriteTimeout,
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p.conf.ReadBufferCount,
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p.conf.ReadBufferSize,
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useUDP,
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p.conf.RTPAddress,
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p.conf.RTCPAddress,
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false,
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"",
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"",
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p.conf.RTSPAddress,
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p.conf.ProtocolsParsed,
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p.conf.RunOnConnect,
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p.conf.RunOnConnectRestart,
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p.stats,
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p.pathMan,
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p)
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if err != nil {
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return err
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}
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}
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}
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if !p.conf.RTSPDisable &&
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(p.conf.EncryptionParsed == conf.EncryptionStrict ||
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p.conf.EncryptionParsed == conf.EncryptionOptional) {
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if p.serverRTSPTLS == nil {
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p.serverRTSPTLS, err = rtspserver.New(
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p.ctx,
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p.conf.RTSPSAddress,
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p.conf.ReadTimeout,
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p.conf.WriteTimeout,
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p.conf.ReadBufferCount,
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p.conf.ReadBufferSize,
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false,
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"",
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"",
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true,
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p.conf.ServerCert,
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p.conf.ServerKey,
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p.conf.RTSPAddress,
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p.conf.ProtocolsParsed,
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p.conf.RunOnConnect,
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p.conf.RunOnConnectRestart,
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p.stats,
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p.pathMan,
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p)
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if err != nil {
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return err
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}
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}
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}
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if !p.conf.RTMPDisable {
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if p.serverRTMP == nil {
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p.serverRTMP, err = rtmpserver.New(
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p.ctx,
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p.conf.RTMPAddress,
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p.conf.ReadTimeout,
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p.conf.WriteTimeout,
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p.conf.ReadBufferCount,
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p.conf.RTSPAddress,
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p.conf.RunOnConnect,
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p.conf.RunOnConnectRestart,
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p.stats,
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p.pathMan,
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p)
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if err != nil {
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return err
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}
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}
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}
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if !p.conf.HLSDisable {
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if p.serverHLS == nil {
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p.serverHLS, err = hlsserver.New(
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p.ctx,
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p.conf.HLSAddress,
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p.conf.HLSSegmentCount,
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p.conf.HLSSegmentDuration,
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p.conf.ReadBufferCount,
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p.stats,
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p.pathMan,
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p)
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if err != nil {
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return err
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}
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}
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}
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return nil
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}
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func (p *program) closeResources(newConf *conf.Conf) {
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closeStats := false
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if newConf == nil {
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closeStats = true
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}
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closeLogger := false
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if newConf == nil ||
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!reflect.DeepEqual(newConf.LogDestinationsParsed, p.conf.LogDestinationsParsed) ||
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newConf.LogFile != p.conf.LogFile {
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closeLogger = true
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}
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closeMetrics := false
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if newConf == nil ||
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newConf.Metrics != p.conf.Metrics ||
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newConf.MetricsAddress != p.conf.MetricsAddress ||
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closeStats {
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closeMetrics = true
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}
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closePPROF := false
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if newConf == nil ||
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newConf.PPROF != p.conf.PPROF ||
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newConf.PPROFAddress != p.conf.PPROFAddress ||
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closeStats {
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closePPROF = true
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}
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closePathMan := false
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if newConf == nil ||
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newConf.RTSPAddress != p.conf.RTSPAddress ||
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newConf.ReadTimeout != p.conf.ReadTimeout ||
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newConf.WriteTimeout != p.conf.WriteTimeout ||
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newConf.ReadBufferCount != p.conf.ReadBufferCount ||
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newConf.ReadBufferSize != p.conf.ReadBufferSize ||
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!reflect.DeepEqual(newConf.AuthMethodsParsed, p.conf.AuthMethodsParsed) ||
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closeStats {
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closePathMan = true
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} else if !reflect.DeepEqual(newConf.Paths, p.conf.Paths) {
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p.pathMan.OnProgramConfReload(newConf.Paths)
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}
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closeServerPlain := false
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if newConf == nil ||
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newConf.RTSPDisable != p.conf.RTSPDisable ||
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newConf.EncryptionParsed != p.conf.EncryptionParsed ||
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newConf.RTSPAddress != p.conf.RTSPAddress ||
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newConf.ReadTimeout != p.conf.ReadTimeout ||
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newConf.WriteTimeout != p.conf.WriteTimeout ||
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newConf.ReadBufferCount != p.conf.ReadBufferCount ||
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!reflect.DeepEqual(newConf.ProtocolsParsed, p.conf.ProtocolsParsed) ||
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newConf.RTPAddress != p.conf.RTPAddress ||
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newConf.RTCPAddress != p.conf.RTCPAddress ||
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newConf.RTSPAddress != p.conf.RTSPAddress ||
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!reflect.DeepEqual(newConf.ProtocolsParsed, p.conf.ProtocolsParsed) ||
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newConf.RunOnConnect != p.conf.RunOnConnect ||
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newConf.RunOnConnectRestart != p.conf.RunOnConnectRestart ||
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closeStats ||
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closePathMan {
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closeServerPlain = true
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}
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closeServerTLS := false
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if newConf == nil ||
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newConf.RTSPDisable != p.conf.RTSPDisable ||
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newConf.EncryptionParsed != p.conf.EncryptionParsed ||
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newConf.RTSPSAddress != p.conf.RTSPSAddress ||
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newConf.ReadTimeout != p.conf.ReadTimeout ||
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newConf.WriteTimeout != p.conf.WriteTimeout ||
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newConf.ReadBufferCount != p.conf.ReadBufferCount ||
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newConf.ServerCert != p.conf.ServerCert ||
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newConf.ServerKey != p.conf.ServerKey ||
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newConf.RTSPAddress != p.conf.RTSPAddress ||
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!reflect.DeepEqual(newConf.ProtocolsParsed, p.conf.ProtocolsParsed) ||
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newConf.RunOnConnect != p.conf.RunOnConnect ||
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newConf.RunOnConnectRestart != p.conf.RunOnConnectRestart ||
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closeStats ||
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closePathMan {
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closeServerTLS = true
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}
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closeServerRTMP := false
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if newConf == nil ||
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newConf.RTMPDisable != p.conf.RTMPDisable ||
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newConf.RTMPAddress != p.conf.RTMPAddress ||
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newConf.ReadTimeout != p.conf.ReadTimeout ||
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newConf.WriteTimeout != p.conf.WriteTimeout ||
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newConf.ReadBufferCount != p.conf.ReadBufferCount ||
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newConf.RTSPAddress != p.conf.RTSPAddress ||
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newConf.RunOnConnect != p.conf.RunOnConnect ||
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newConf.RunOnConnectRestart != p.conf.RunOnConnectRestart ||
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closeStats ||
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closePathMan {
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closeServerRTMP = true
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}
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closeServerHLS := false
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if newConf == nil ||
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newConf.HLSDisable != p.conf.HLSDisable ||
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newConf.HLSAddress != p.conf.HLSAddress ||
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newConf.HLSSegmentCount != p.conf.HLSSegmentCount ||
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newConf.HLSSegmentDuration != p.conf.HLSSegmentDuration ||
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newConf.ReadBufferCount != p.conf.ReadBufferCount ||
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closeStats ||
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closePathMan {
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closeServerHLS = true
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}
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if closeServerTLS && p.serverRTSPTLS != nil {
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p.serverRTSPTLS.Close()
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p.serverRTSPTLS = nil
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}
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if closeServerPlain && p.serverRTSPPlain != nil {
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p.serverRTSPPlain.Close()
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p.serverRTSPPlain = nil
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}
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if closePathMan && p.pathMan != nil {
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p.pathMan.Close()
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p.pathMan = nil
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}
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if closeServerHLS && p.serverHLS != nil {
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p.serverHLS.Close()
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p.serverHLS = nil
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}
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if closeServerRTMP && p.serverRTMP != nil {
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p.serverRTMP.Close()
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p.serverRTMP = nil
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}
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if closePPROF && p.pprof != nil {
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p.pprof.Close()
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p.pprof = nil
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}
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if closeMetrics && p.metrics != nil {
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p.metrics.Close()
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p.metrics = nil
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}
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if closeLogger && p.logger != nil {
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p.logger.Close()
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p.logger = nil
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}
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if closeStats && p.stats != nil {
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p.stats.Close()
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}
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}
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func (p *program) reloadConf() error {
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p.Log(logger.Info, "reloading configuration")
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newConf, _, err := conf.Load(p.confPath)
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if err != nil {
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return err
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}
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p.closeResources(newConf)
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p.conf = newConf
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return p.createResources(false)
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}
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func main() {
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p, ok := newProgram(os.Args[1:])
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if !ok {
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os.Exit(1)
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}
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<-p.done
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}
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