forked from nareix/joy4
/
rtmp.go
2077 lines (1803 loc) · 44.9 KB
/
rtmp.go
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package rtmp
import (
"bufio"
"bytes"
"crypto/hmac"
"crypto/rand"
"crypto/sha256"
"fmt"
"io"
"net"
"net/url"
"os"
"strings"
"time"
rotatelogs "github.com/lestrrat/go-file-rotatelogs"
"github.com/nareix/joy4/av"
"github.com/nareix/joy4/av/avutil"
"github.com/nareix/joy4/format/flv"
"github.com/nareix/joy4/format/flv/flvio"
"github.com/nareix/joy4/utils/bits/pio"
"github.com/pkg/errors"
log "github.com/sirupsen/logrus"
)
var Debug bool
const LOG_NAME = "rtmp_serv.log"
func init() {
dir, err := os.Getwd()
if err != nil {
log.Errorln("Failed Getwd(): %s", err)
//return
}
/**
* @brief : rotatelogs의 New 함수
* @details : New creates a new RotateLogs object. A log filename pattern
must be passed. Optional `Option` parameters may be passed
* @param args : (pattern string, options ...Option)
* @return : (*RotateLogs, error)
*/
logf, err := rotatelogs.New(
fmt.Sprintf("%s/logs/%s.%s", dir, LOG_NAME, "%Y%m%d%H%M%S"),
rotatelogs.WithRotationTime(24*time.Hour),
)
// Fork writing into two outputs
multiWriter := io.MultiWriter(os.Stderr, logf)
logFormatter := new(log.TextFormatter)
logFormatter.TimestampFormat = "2006-01-02 15:04:05.000"
logFormatter.FullTimestamp = true
log.SetFormatter(logFormatter)
//log.SetLevel(log.InfoLevel)
/**
* @brief : logrus의 SetLevel 함수
* @details : Trace, Debug, Info, Warn, Error, Fatal, Panic Level이 있다.
Debug Level은 Info, Warning, Error Fatal 4가지 레벨이 포함된다.
* @param args : logger *Logger
* @return : level
*/
//log.SetLevel(log.DebugLevel)
log.SetOutput(multiWriter)
//log.Info("hihi")
}
// pubPathList := make([]string, 500)
// pubPathCount = 0
func ParseURL(uri string) (u *url.URL, err error) {
if u, err = url.Parse(uri); err != nil {
return
}
log.Infof("uri: %s", uri)
if _, _, serr := net.SplitHostPort(u.Host); serr != nil {
u.Host += ":1935"
}
log.Infof("u.Host: %v", u.Host)
return
}
func Dial(uri string) (conn *Conn, err error) {
log.Println("Dial Start")
return DialTimeout(uri, 0)
}
func DialTimeout(uri string, timeout time.Duration) (conn *Conn, err error) {
var u *url.URL
if u, err = ParseURL(uri); err != nil {
return
}
dailer := net.Dialer{Timeout: timeout}
var netconn net.Conn
if netconn, err = dailer.Dial("tcp", u.Host); err != nil {
return
}
conn = NewConn(netconn)
conn.URL = u
return
}
type Server struct {
Addr string
HandlePublish func(*Conn)
HandlePlay func(*Conn)
HandleConn func(*Conn)
Logger *log.Logger
// for Management Publishing Path
KeyMap map[string]bool
}
func (self *Server) handleConn(conn *Conn) (err error) {
if self.HandleConn != nil {
self.HandleConn(conn)
} else {
if err = conn.prepare(stageCommandDone, 0, self); err != nil {
return
}
if conn.playing {
if self.HandlePlay != nil {
self.HandlePlay(conn)
}
} else if conn.publishing {
if self.HandlePublish != nil {
self.HandlePublish(conn)
}
}
}
return
}
func (self *Server) ListenAndServe() (err error) {
var count int = 0
addr := self.Addr
if addr == "" {
addr = ":1935"
}
var tcpaddr *net.TCPAddr
if tcpaddr, err = net.ResolveTCPAddr("tcp", addr); err != nil {
//err = log.Errorf("rtmp: ListenAndServe: %s", err)
log.Errorf("rtmp: ListenAndServe: %v", err)
return
}
var listener *net.TCPListener
if listener, err = net.ListenTCP("tcp", tcpaddr); err != nil {
return
}
log.Infof("rtmp: server: listening on : %v", addr)
for {
var netconn net.Conn
if netconn, err = listener.Accept(); err != nil {
return
}
count++
log.Infof("Accept Success cumulative count : %v", count)
conn := NewConn(netconn)
//conn.Logger = self.Logger
conn.isserver = true
go func() {
err := self.handleConn(conn)
if err != nil {
log.Infof("rtmp: server: client closed err: %v", err)
}
}()
}
}
const (
stageHandshakeDone = iota + 1
stageCommandDone
stageCodecDataDone
)
const (
prepareReading = iota + 1
prepareWriting
)
type Conn struct {
URL *url.URL
OnPlayOrPublish func(string, flvio.AMFMap) error
prober *flv.Prober
streams []av.CodecData
txbytes uint64
rxbytes uint64
bufr *bufio.Reader
bufw *bufio.Writer
ackn uint32
writebuf []byte
readbuf []byte
netconn net.Conn
txrxcount *txrxcount
writeMaxChunkSize int
readMaxChunkSize int
readAckSize uint32
readcsmap map[uint32]*chunkStream
isserver bool
publishing, playing bool
reading, writing bool
stage int
avmsgsid uint32
gotcommand bool
commandname string
commandtransid float64
commandobj flvio.AMFMap
commandparams []interface{}
gotmsg bool
timestamp uint32
msgdata []byte
msgtypeid uint8
datamsgvals []interface{}
avtag flvio.Tag
eventtype uint16
Logger *log.Logger
}
type txrxcount struct {
io.ReadWriter
txbytes uint64
rxbytes uint64
}
func (self *txrxcount) Read(p []byte) (int, error) {
n, err := self.ReadWriter.Read(p)
self.rxbytes += uint64(n)
return n, err
}
func (self *txrxcount) Write(p []byte) (int, error) {
n, err := self.ReadWriter.Write(p)
self.txbytes += uint64(n)
return n, err
}
func NewConn(netconn net.Conn) *Conn {
conn := &Conn{}
conn.prober = &flv.Prober{}
conn.netconn = netconn
conn.readcsmap = make(map[uint32]*chunkStream)
conn.readMaxChunkSize = 128
conn.writeMaxChunkSize = 128
conn.bufr = bufio.NewReaderSize(netconn, pio.RecommendBufioSize)
conn.bufw = bufio.NewWriterSize(netconn, pio.RecommendBufioSize)
conn.txrxcount = &txrxcount{ReadWriter: netconn}
conn.writebuf = make([]byte, 4096)
conn.readbuf = make([]byte, 4096)
return conn
}
type chunkStream struct {
timenow uint32
timedelta uint32
hastimeext bool
msgsid uint32
msgtypeid uint8
msgdatalen uint32
msgdataleft uint32
msghdrtype uint8
msgdata []byte
}
func (self *chunkStream) Start() {
self.msgdataleft = self.msgdatalen
self.msgdata = make([]byte, self.msgdatalen)
}
const (
msgtypeidUserControl = 4
msgtypeidAck = 3
msgtypeidWindowAckSize = 5
msgtypeidSetPeerBandwidth = 6
msgtypeidSetChunkSize = 1
msgtypeidCommandMsgAMF0 = 20
msgtypeidCommandMsgAMF3 = 17
msgtypeidDataMsgAMF0 = 18
msgtypeidDataMsgAMF3 = 15
msgtypeidVideoMsg = 9
msgtypeidAudioMsg = 8
)
const (
eventtypeStreamBegin = 0
eventtypeSetBufferLength = 3
eventtypeStreamIsRecorded = 4
)
func (self *Conn) NetConn() net.Conn {
return self.netconn
}
func (self *Conn) TxBytes() uint64 {
return self.txrxcount.txbytes
}
func (self *Conn) RxBytes() uint64 {
return self.txrxcount.rxbytes
}
func (self *Conn) Close() (err error) {
return self.netconn.Close()
}
func (self *Conn) pollCommand() (err error) {
for {
if err = self.pollMsg(); err != nil {
return
}
if self.gotcommand {
return
}
}
}
func (self *Conn) pollAVTag() (tag flvio.Tag, err error) {
for {
if err = self.pollMsg(); err != nil {
return
}
switch self.msgtypeid {
case msgtypeidVideoMsg, msgtypeidAudioMsg:
tag = self.avtag
return
}
}
}
func (self *Conn) pollMsg() (err error) {
self.gotmsg = false
self.gotcommand = false
self.datamsgvals = nil
self.avtag = flvio.Tag{}
for {
if err = self.readChunk(); err != nil {
return
}
if self.gotmsg {
return
}
}
}
func SplitPath(u *url.URL) (app, stream string) {
pathsegs := strings.SplitN(u.RequestURI(), "/", 3)
if len(pathsegs) > 1 {
app = pathsegs[1]
}
if len(pathsegs) > 2 {
stream = pathsegs[2]
}
return
}
func getTcUrl(u *url.URL) string {
app, _ := SplitPath(u)
nu := *u
nu.Path = "/" + app
return nu.String()
}
func createURL(tcurl, app, play string) (u *url.URL) {
ps := strings.Split(app+"/"+play, "/")
out := []string{""}
for _, s := range ps {
if len(s) > 0 {
out = append(out, s)
}
}
if len(out) < 2 {
out = append(out, "")
}
path := strings.Join(out, "/")
u, _ = url.ParseRequestURI(path)
if tcurl != "" {
tu, _ := url.Parse(tcurl)
if tu != nil {
u.Host = tu.Host
u.Scheme = tu.Scheme
}
}
return
}
var CodecTypes = flv.CodecTypes
func (self *Conn) writeBasicConf() (err error) {
// > SetChunkSize
if err = self.writeSetChunkSize(1024 * 1024 * 128); err != nil {
return
}
// > WindowAckSize
if err = self.writeWindowAckSize(5000000); err != nil {
return
}
// > SetPeerBandwidth
if err = self.writeSetPeerBandwidth(5000000, 2); err != nil {
return
}
return
}
func (self *Conn) readConnect(server *Server) (err error) {
var connectpath string
// < connect("app")
if err = self.pollCommand(); err != nil {
return
}
if self.commandname != "connect" {
log.Error("rtmp: first command is not connect")
return
}
if self.commandobj == nil {
log.Error("rtmp: connect command params invalid")
return
}
var ok bool
var _app, _tcurl interface{}
if _app, ok = self.commandobj["app"]; !ok {
log.Error("rtmp: `connect` params missing `app`")
return
}
connectpath, _ = _app.(string)
var tcurl string
if _tcurl, ok = self.commandobj["tcUrl"]; !ok {
_tcurl, ok = self.commandobj["tcurl"]
}
if ok {
tcurl, _ = _tcurl.(string)
}
connectparams := self.commandobj
// SetChunkSize 1024 * 1024 * 128, WindowAckSize 5000000, SetPeerBandwidth (5000000,2)
if err = self.writeBasicConf(); err != nil {
return
}
// > _result("NetConnection.Connect.Success")
if err = self.writeCommandMsg(3, 0, "_result", self.commandtransid,
flvio.AMFMap{
"fmtVer": "FMS/3,0,1,123",
"capabilities": 31,
},
flvio.AMFMap{
"level": "status",
"code": "NetConnection.Connect.Success",
"description": "Connection succeeded.",
"objectEncoding": 3,
},
); err != nil {
return
}
if err = self.flushWrite(); err != nil {
return
}
for {
if err = self.pollMsg(); err != nil {
return
}
if self.gotcommand {
switch self.commandname {
// < createStream
case "createStream":
self.avmsgsid = uint32(1)
// > _result(streamid)
if err = self.writeCommandMsg(3, 0, "_result", self.commandtransid, nil, self.avmsgsid); err != nil {
return
}
if err = self.flushWrite(); err != nil {
return
}
log.Info("rtmp: < createSteam Done")
// < publish("path")
case "publish":
if Debug {
log.Debug("rtmp: < publish")
}
if len(self.commandparams) < 1 {
log.Error("rtmp: publish params invalid")
return
}
publishpath, _ := self.commandparams[0].(string)
var cberr error
if self.OnPlayOrPublish != nil {
cberr = self.OnPlayOrPublish(self.commandname, connectparams)
}
/////////////////////////////Check whether Stream Key is Same or not////////////////////////////////////
// 스트림키를 가진 데이터타입과 비교하여 조건문에 해당하면 아래구문을 처리하게 해야 함
if server.KeyMap[publishpath] == true {
if err = self.writeCommandMsg(5, self.avmsgsid,
"onStatus", self.commandtransid, nil,
flvio.AMFMap{
"level": "error",
"code": "NetStream.Publish.BadName",
"description": "Already Published",
},
); err != nil {
log.Info("writeCommandMsg about Already Published Error")
return
}
return errors.New("write badname msg err, Cannot publish to this stream")
}
server.KeyMap[publishpath] = true
////////////////////////////////////////////////////////////////////////////////////////////////////////
// > onStatus()
if err = self.writeCommandMsg(5, self.avmsgsid,
"onStatus", self.commandtransid, nil,
flvio.AMFMap{
"level": "status",
"code": "NetStream.Publish.Start",
"description": "Start publishing",
},
); err != nil {
return
}
if err = self.flushWrite(); err != nil {
return
}
if cberr != nil {
log.Error("rtmp: OnPlayOrPublish check failed")
return
}
self.URL = createURL(tcurl, connectpath, publishpath)
log.Infof("NetStream Publish Done, tcurl : %#v, connectpath : %#v,publishpath : %#v", tcurl, connectpath, publishpath)
self.publishing = true
self.reading = true
self.stage++
return
// < play("path")
case "play":
if Debug {
log.Debug("rtmp: < publish")
}
if len(self.commandparams) < 1 {
log.Error("rtmp: command play params invalid")
return
}
playpath, _ := self.commandparams[0].(string)
// > streamBegin(streamid)
if err = self.writeStreamBegin(self.avmsgsid); err != nil {
return
}
// > onStatus()
if err = self.writeCommandMsg(5, self.avmsgsid,
"onStatus", self.commandtransid, nil,
flvio.AMFMap{
"level": "status",
"code": "NetStream.Play.Start",
"description": "Start live",
},
); err != nil {
return
}
// > |RtmpSampleAccess()
if err = self.writeDataMsg(5, self.avmsgsid,
"|RtmpSampleAccess", true, true,
); err != nil {
return
}
if err = self.flushWrite(); err != nil {
return
}
self.URL = createURL(tcurl, connectpath, playpath)
log.Infof("Netstream.Play Start Done, tcurl : %#v, connectpath : %#v,playpath : %#v ", tcurl, connectpath, playpath)
self.playing = true
self.writing = true
self.stage++
return
}
}
}
return
}
func (self *Conn) readConnect2() (err error) {
var connectpath string
// < connect("app")
if err = self.pollCommand(); err != nil {
return
}
if self.commandname != "connect" {
log.Error("rtmp: first command is not connect")
return
}
if self.commandobj == nil {
log.Error("rtmp: connect command params invalid")
return
}
var ok bool
var _app, _tcurl interface{}
if _app, ok = self.commandobj["app"]; !ok {
log.Error("rtmp: `connect` params missing `app`")
return
}
connectpath, _ = _app.(string)
var tcurl string
if _tcurl, ok = self.commandobj["tcUrl"]; !ok {
_tcurl, ok = self.commandobj["tcurl"]
}
if ok {
tcurl, _ = _tcurl.(string)
}
connectparams := self.commandobj
// SetChunkSize 1024 * 1024 * 128, WindowAckSize 5000000, SetPeerBandwidth (5000000,2)
if err = self.writeBasicConf(); err != nil {
return
}
// > _result("NetConnection.Connect.Success")
if err = self.writeCommandMsg(3, 0, "_result", self.commandtransid,
flvio.AMFMap{
"fmtVer": "FMS/3,0,1,123",
"capabilities": 31,
},
flvio.AMFMap{
"level": "status",
"code": "NetConnection.Connect.Success",
"description": "Connection succeeded.",
"objectEncoding": 3,
},
); err != nil {
return
}
if err = self.flushWrite(); err != nil {
return
}
for {
if err = self.pollMsg(); err != nil {
return
}
if self.gotcommand {
switch self.commandname {
// < createStream
case "createStream":
self.avmsgsid = uint32(1)
// > _result(streamid)
if err = self.writeCommandMsg(3, 0, "_result", self.commandtransid, nil, self.avmsgsid); err != nil {
return
}
if err = self.flushWrite(); err != nil {
return
}
log.Info("rtmp: < createSteam Done")
// < publish("path")
case "publish":
if Debug {
log.Debug("rtmp: < publish")
}
if len(self.commandparams) < 1 {
log.Error("rtmp: publish params invalid")
return
}
publishpath, _ := self.commandparams[0].(string)
var cberr error
if self.OnPlayOrPublish != nil {
cberr = self.OnPlayOrPublish(self.commandname, connectparams)
}
// > onStatus()
if err = self.writeCommandMsg(5, self.avmsgsid,
"onStatus", self.commandtransid, nil,
flvio.AMFMap{
"level": "status",
"code": "NetStream.Publish.Start",
"description": "Start publishing",
},
); err != nil {
return
}
if err = self.flushWrite(); err != nil {
return
}
if cberr != nil {
log.Error("rtmp: OnPlayOrPublish check failed")
return
}
self.URL = createURL(tcurl, connectpath, publishpath)
self.publishing = true
self.reading = true
self.stage++
log.Infof("NetStream Publish Done, tcurl : %#v, connectpath : %#v,publishpath : %#v", tcurl, connectpath, publishpath)
return
// < play("path")
case "play":
if Debug {
log.Debug("rtmp: < publish")
}
if len(self.commandparams) < 1 {
log.Error("rtmp: command play params invalid")
return
}
playpath, _ := self.commandparams[0].(string)
// > streamBegin(streamid)
if err = self.writeStreamBegin(self.avmsgsid); err != nil {
return
}
// > onStatus()
if err = self.writeCommandMsg(5, self.avmsgsid,
"onStatus", self.commandtransid, nil,
flvio.AMFMap{
"level": "status",
"code": "NetStream.Play.Start",
"description": "Start live",
},
); err != nil {
return
}
// > |RtmpSampleAccess()
if err = self.writeDataMsg(5, self.avmsgsid,
"|RtmpSampleAccess", true, true,
); err != nil {
return
}
if err = self.flushWrite(); err != nil {
return
}
self.URL = createURL(tcurl, connectpath, playpath)
log.Infof("Netstream.Play Start Done, tcurl : %#v, connectpath : %#v,playpath : %#v ", tcurl, connectpath, playpath)
self.playing = true
self.writing = true
self.stage++
return
}
}
}
return
}
func (self *Conn) checkConnectResult() (ok bool, errmsg string) {
if len(self.commandparams) < 1 {
errmsg = "params length < 1"
return
}
obj, _ := self.commandparams[0].(flvio.AMFMap)
if obj == nil {
errmsg = "params[0] not object"
return
}
_code, _ := obj["code"]
if _code == nil {
errmsg = "code invalid"
return
}
code, _ := _code.(string)
if code != "NetConnection.Connect.Success" {
errmsg = "code != NetConnection.Connect.Success"
return
}
ok = true
return
}
func (self *Conn) checkCreateStreamResult() (ok bool, avmsgsid uint32) {
if len(self.commandparams) < 1 {
return
}
ok = true
_avmsgsid, _ := self.commandparams[0].(float64)
avmsgsid = uint32(_avmsgsid)
return
}
func (self *Conn) probe() (err error) {
for !self.prober.Probed() {
var tag flvio.Tag
if tag, err = self.pollAVTag(); err != nil {
return
}
if err = self.prober.PushTag(tag, int32(self.timestamp)); err != nil {
return
}
}
self.streams = self.prober.Streams
self.stage++
return
}
func (self *Conn) writeConnect(path string) (err error) {
if err = self.writeBasicConf(); err != nil {
return
}
// > connect("app")
if Debug {
log.Debugf("rtmp: > connect('%s') host=%s\n", path, self.URL.Host)
}
log.Infof("rtmp: > connect('%s') host=%s\n , self.URL %s", path, self.URL.Host, self.URL)
if err = self.writeCommandMsg(3, 0, "connect", 1,
flvio.AMFMap{
"app": path,
"flashVer": "MAC 22,0,0,192",
"tcUrl": getTcUrl(self.URL),
"fpad": false,
"capabilities": 15,
"audioCodecs": 4071,
"videoCodecs": 252,
"videoFunction": 1,
},
); err != nil {
log.Info("writeCommand Msg")
log.Info(err)
return
}
log.Info("after writeCommandMsg insideof writeConnect")
if err = self.flushWrite(); err != nil {
log.Info("Inside of Write Connect flushWrite error")
return
}
for {
if err = self.pollMsg(); err != nil {
log.Info(err)
return
}
if self.gotcommand {
// < _result("NetConnection.Connect.Success")
if self.commandname == "_result" {
var ok bool
var errmsg string
if ok, errmsg = self.checkConnectResult(); !ok {
log.Errorf("rtmp: command connect failed: %s", errmsg)
return
}
if Debug {
log.Debug("rtmp: < _result() of connect\n")
}
break
}
} else {
if self.msgtypeid == msgtypeidWindowAckSize {
if len(self.msgdata) == 4 {
self.readAckSize = pio.U32BE(self.msgdata)
}
if err = self.writeWindowAckSize(0xffffffff); err != nil {
log.Println("writeWindowAckSize error")
log.Println(err)
return
}
}
}
}
return
}
func (self *Conn) connectPublish() (err error) {
connectpath, publishpath := SplitPath(self.URL)
// publish path check
log.Infof("inside of connectPublish , connect path : %s, publishpath : %s", connectpath, publishpath)
if err = self.writeConnect(connectpath); err != nil {
log.Info("There is Some Error with writeConnect")
log.Info(err)
return
}
transid := 2
// > createStream()
log.Info("rtmp: > createStream()\n")
if err = self.writeCommandMsg(3, 0, "createStream", transid, nil); err != nil {
log.Info("There is Some Error with writeCommandMsg")
log.Info(err)
return
}
transid++
if err = self.flushWrite(); err != nil {
log.Info("There is Some Error with flushWrite")
log.Info(err)
return
}
for {
if err = self.pollMsg(); err != nil {
log.Info("There is Some Error with pollMsg")
log.Info(err)
return
}
if self.gotcommand {
// < _result(avmsgsid) of createStream
if self.commandname == "_result" {
var ok bool
if ok, self.avmsgsid = self.checkCreateStreamResult(); !ok {
log.Error("rtmp: createStream command failed")
return
}
break
}
}
}
// > publish('app')
log.Infof("rtmp: > publish('%s')\n", publishpath)
if err = self.writeCommandMsg(8, self.avmsgsid, "publish", transid, nil, publishpath); err != nil {
log.Infof("There is Some Error with writeCommandMsg : %v", err)
return
}
transid++
if err = self.flushWrite(); err != nil {
log.Infof("There is Some Error with flushWrite : %v", err)
return
}
self.writing = true
self.publishing = true
self.stage++
return
}
func (self *Conn) connectPlay() (err error) {
connectpath, playpath := SplitPath(self.URL)
if err = self.writeConnect(connectpath); err != nil {
return
}
// > createStream()
if Debug {
log.Info("rtmp: > createStream()\n")
}