📦 NEW: 添加dump功能

1.修复海康摄像头获取不到ip，崩溃的问题。

README.md

@@ -7,33 +7,75 @@
 github.com/Monibuca/plugin-gb28181
 
 ## 插件引入
+
 ```go
 import (
-    _ "github.com/Monibuca/plugin-gb28181"
+_ "m7s.live/plugin/gb28181/v4"
 )
 ```
 
 ## 默认插件配置
 
-```toml
-[GB28181]
-Serial = "34020000002000000001"
-Realm = "3402000000"
-Expires = 3600
-ListenAddr = "127.0.0.1:5060"
-AutoUnPublish = true 
-AutoInvite = false
-MediaPort = 58200
-CatalogInterval = 30
+```yaml
+gb28181:
+  autoinvite:     true
+  prefetchrecord: false
+  udpcachesize:   0
+  sipnetwork:     udp
+  sipip:          
+  sipport:        5060
+  serial:         "34020000002000000001"
+  realm:          "3402000000"
+  username:       ""
+  password:       ""
+  
+  acktimeout:        10
+  registervalidity:  60
+  registerinterval:  60
+  heartbeatinterval: 60
+  heartbeatretry:    3
+  
+  mediaip:          
+  mediaport:        58200
+  mediaidletimeout: 30
+  medianetwork:     udp
+  
+  removebaninterval: 600
+  loglevel:         info
+  audioenable:       true
 ```
 
-- `ListenAddr`是监听的地址，这里需要注意的是必须要带上Server的IP地址，这个IP地址是向设备发送信息的时候需要带上的。
-- `Serial` Server（SIP）的编号
-- `Realm` Server（SIP）的域
-- `AutoUnPublish` 如果设置为true，则当某个流最后一个订阅者取消订阅时，会自动发送bye，节省流量。如果为了响应及时，可以设置成false，保持流的连接
-- `AutoInvite` 表示自动发起invite，当Server（SIP）接收到设备信息时，立即向设备发送invite命令获取流
-- `MediaPort` 表示用于接收设备流的端口号
-- `CatalogInterval` 定时获取设备目录的间隔，单位秒
+- `AutoInvite`     bool 表示自动发起invite，当Server（SIP）接收到设备信息时，立即向设备发送invite命令获取流
+- `PreFetchRecord` bool
+
+* sip服务器的配置
+- `SipNetwork` string 传输协议，默认UDP，可选TCP
+- `SipIP`      string sip 服务器公网IP 默认 自动适配设备网段
+- `SipPort`    uint16 sip 服务器端口，默认 5060
+- `Serial`     string sip 服务器 id, 默认 34020000002000000001
+- `Realm`      string sip 服务器域，默认 3402000000
+- `Username`   string sip 服务器账号
+- `Password`   string sip 服务器密码
+
+- `AckTimeout`        uint16 sip 服务应答超时，单位秒
+- `RegisterValidity`  int    注册有效期，单位秒，默认 3600
+- `RegisterInterval`  int    注册间隔，单位秒，默认 60
+- `HeartbeatInterval` int    心跳间隔，单位秒，默认 60
+- `HeartbeatRetry`    int    心跳超时次数，默认 3
+
+* 媒体服务器配置
+- `MediaIP`          string 媒体服务器地址 默认 自动适配设备网段
+- `MediaPort`        uint16 媒体服务器端口
+- `MediaNetwork`     string 媒体传输协议，默认UDP，可选TCP
+- `MediaIdleTimeout` uint16 推流超时时间，超过则断开链接，让设备重连
+
+- `AudioEnable`       bool 是否开启音频
+- `LogLevel`        string 日志级别，默认 info（trace，debug，info，warn，error，fatal, panic）
+- `RemoveBanInterval` int  定时移除注册失败的设备黑名单，单位秒，默认10分钟（600秒）
+- `UdpCacheSize`      int  表示UDP缓存大小，默认为0，不开启。仅当TCP关闭，切缓存大于0时才开启，会最多缓存最多N个包，并排序，修复乱序造成的无法播放问题，注意开启后，会有一定的性能损耗，并丢失部分包。
+
+**注意某些摄像机没有设置用户名的地方，摄像机会以自身的国标id作为用户名，这个时候m7s会忽略使用摄像机的用户名，忽略配置的用户名**
+如果设备配置了错误的用户名和密码，连续三次上报错误后，m7s会记录设备id，并在10分钟内禁止设备注册
 
 ## 插件功能
 
@@ -44,41 +86,47 @@ CatalogInterval = 30
 - 发送RecordInfo命令查询设备对录像数据
 - 发送Invite命令获取设备的实时视频或者录像视频
 - 发送PTZ命令来控制摄像头云台
+- 自动同步设备位置
 
 ### 作为GB28281的流媒体服务器接受设备的媒体流
 
 - 当invite设备的**实时**视频流时，会在m7s中创建对应的流，StreamPath由设备编号和通道编号组成，即[设备编号]/[通道编号],如果有多个层级，通道编号是最后一个层级的编号
 - 当invite设备的**录像**视频流时，StreamPath由设备编号和通道编号以及录像的起止时间拼接而成即[设备编号]/[通道编号]/[开始时间]-[结束时间]
 
+### 如何设置UDP缓存大小
+
+通过wireshark抓包，分析rtp，然后看一下大概多少个包可以有序
+
 ## 接口API
 
 ### 罗列所有的gb28181协议的设备
-`/api/gb28181/list`
+
+`/gb28181/api/list`
 设备的结构体如下
+
 ```go
 type Device struct {
-	*transaction.Core `json:"-"`
-	ID                string
-	RegisterTime      time.Time
-	UpdateTime        time.Time
-	Status            string
-	Channels          []*Channel
-	queryChannel      bool
-	sn                int
-	from              *sip.Contact
-	to                *sip.Contact
-	Addr              string
-	SipIP             string //暴露的IP
-	channelMap        map[string]*Channel
-	channelMutex      sync.RWMutex
+	ID              string
+	Name            string
+	Manufacturer    string
+	Model           string
+	Owner           string
+	RegisterTime    time.Time
+	UpdateTime      time.Time
+	LastKeepaliveAt time.Time
+	Status          string
+	Channels        []*Channel
+	NetAddr         string
 }
 ```
+
 > 根据golang的规则，小写字母开头的变量不会被序列化
 
 ### 从设备拉取视频流
-`/api/gb28181/invite`
 
-参数名 | 必传 | 含义 
+`/gb28181/api/invite`
+
+参数名 | 必传 | 含义
 |----|---|---
 id|是 | 设备ID
 channel|是|通道编号
@@ -89,18 +137,18 @@ endTime|否|结束时间（纯数字Unix时间戳）
 
 ### 停止从设备拉流
 
-`/api/gb28181/bye`
+`/gb28181/api/bye`
 
-参数名 | 必传 | 含义 
+参数名 | 必传 | 含义
 |----|---|---
 id|是 | 设备ID
 channel|是|通道编号
 
 ### 发送控制命令
 
-`/api/gb28181/control`
+`/gb28181/api/control`
 
-参数名 | 必传 | 含义 
+参数名 | 必传 | 含义
 |----|---|---
 id|是 | 设备ID
 channel|是|通道编号
@@ -108,11 +156,21 @@ ptzcmd|是|PTZ控制指令
 
 ### 查询录像
 
-`/api/gb28181/query/records`
+`/gb28181/api/records`
 
-参数名 | 必传 | 含义 
+参数名 | 必传 | 含义
 |----|---|---
 id|是 | 设备ID
 channel|是|通道编号
 startTime|否|开始时间（字符串，格式：2021-7-23T12:00:00）
 endTime|否|结束时间（字符串格式同上）
+
+### 移动位置订阅
+
+`/gb28181/api/position`
+
+参数名 | 必传 | 含义
+|----|---|---
+id|是 | 设备ID
+expires|是|订阅周期（秒）
+interval|是|订阅间隔（秒）

channel.go

@@ -3,23 +3,21 @@ package gb28181
 import (
 	"fmt"
 	"math/rand"
+	"net/http"
 	"strconv"
 	"strings"
 	"sync/atomic"
 	"time"
 
-	"github.com/Monibuca/engine/v3"
-	"github.com/Monibuca/plugin-gb28181/v3/sip"
-	"github.com/Monibuca/plugin-gb28181/v3/transaction"
-	"github.com/Monibuca/plugin-gb28181/v3/utils"
+	"github.com/ghettovoice/gosip/sip"
+	"go.uber.org/zap"
+	"m7s.live/plugin/gb28181/v4/utils"
 )
 
 type ChannelEx struct {
 	device          *Device
-	inviteRes       *sip.Message
-	recordInviteRes *sip.Message
-	RecordPublisher *Publisher
-	LivePublisher   *Publisher
+	RecordPublisher *GBPublisher `json:"-"`
+	LivePublisher   *GBPublisher
 	LiveSubSP       string //实时子码流
 	Records         []*Record
 	RecordStartTime string
@@ -27,6 +25,10 @@ type ChannelEx struct {
 	recordStartTime time.Time
 	recordEndTime   time.Time
 	state           int32
+	tcpPortIndex    uint16
+	GpsTime         time.Time //gps时间
+	Longitude       string    //经度
+	Latitude        string    //纬度
 }
 
 // Channel 通道
@@ -44,21 +46,54 @@ type Channel struct {
 	RegisterWay  int
 	Secrecy      int
 	Status       string
-	Children     []*Channel
-	*ChannelEx   //自定义属性
+	Children     []*Channel `json:"-"`
+	*ChannelEx              //自定义属性
 }
 
-func (c *Channel) CreateMessage(Method sip.Method) (requestMsg *sip.Message) {
-	requestMsg = c.device.CreateMessage(Method)
-	requestMsg.StartLine.Uri = sip.NewURI(c.DeviceID + "@" + c.device.to.Uri.Domain())
-	requestMsg.To = &sip.Contact{
-		Uri: requestMsg.StartLine.Uri,
+func (c *Channel) CreateRequst(Method sip.RequestMethod) (req sip.Request) {
+	d := c.device
+	d.sn++
+
+	callId := sip.CallID(utils.RandNumString(10))
+	userAgent := sip.UserAgentHeader("Monibuca")
+	cseq := sip.CSeq{
+		SeqNo:      uint32(d.sn),
+		MethodName: Method,
 	}
-	requestMsg.From = &sip.Contact{
-		Uri:    sip.NewURI(config.Serial + "@" + config.Realm),
-		Params: map[string]string{"tag": utils.RandNumString(9)},
+	port := sip.Port(conf.SipPort)
+	serverAddr := sip.Address{
+		//DisplayName: sip.String{Str: d.serverConfig.Serial},
+		Uri: &sip.SipUri{
+			FUser: sip.String{Str: conf.Serial},
+			FHost: d.sipIP,
+			FPort: &port,
+		},
+		Params: sip.NewParams().Add("tag", sip.String{Str: utils.RandNumString(9)}),
 	}
-	return
+	channelAddr := sip.Address{
+		//DisplayName: sip.String{Str: d.serverConfig.Serial},
+		Uri: &sip.SipUri{FUser: sip.String{Str: c.DeviceID}, FHost: conf.Realm},
+	}
+	req = sip.NewRequest(
+		"",
+		Method,
+		channelAddr.Uri,
+		"SIP/2.0",
+		[]sip.Header{
+			serverAddr.AsFromHeader(),
+			channelAddr.AsToHeader(),
+			&callId,
+			&userAgent,
+			&cseq,
+			serverAddr.AsContactHeader(),
+		},
+		"",
+		nil,
+	)
+
+	req.SetTransport(conf.SipNetwork)
+	req.SetDestination(d.NetAddr)
+	return req
 }
 func (channel *Channel) QueryRecord(startTime, endTime string) int {
 	d := channel.device
@@ -67,34 +102,92 @@ func (channel *Channel) QueryRecord(startTime, endTime string) int {
 	channel.recordStartTime, _ = time.Parse(TIME_LAYOUT, startTime)
 	channel.recordEndTime, _ = time.Parse(TIME_LAYOUT, endTime)
 	channel.Records = nil
-	requestMsg := channel.CreateMessage(sip.MESSAGE)
-	requestMsg.ContentType = "Application/MANSCDP+xml"
-	requestMsg.Body = fmt.Sprintf(`<?xml version="1.0"?>
-<Query>
-<CmdType>RecordInfo</CmdType>
-<SN>%d</SN>
-<DeviceID>%s</DeviceID>
-<StartTime>%s</StartTime>
-<EndTime>%s</EndTime>
-<Secrecy>0</Secrecy>
-<Type>time</Type>
-</Query>`, d.sn, requestMsg.To.Uri.UserInfo(), startTime, endTime)
-	requestMsg.ContentLength = len(requestMsg.Body)
-	return d.SendMessage(requestMsg).Code
+	request := d.CreateRequest(sip.MESSAGE)
+	contentType := sip.ContentType("Application/MANSCDP+xml")
+	request.AppendHeader(&contentType)
+	body := fmt.Sprintf(`<?xml version="1.0"?>
+		<Query>
+		<CmdType>RecordInfo</CmdType>
+		<SN>%d</SN>
+		<DeviceID>%s</DeviceID>
+		<StartTime>%s</StartTime>
+		<EndTime>%s</EndTime>
+		<Secrecy>0</Secrecy>
+		<Type>all</Type>
+		</Query>`, d.sn, d.ID, startTime, endTime)
+	request.SetBody(body, true)
+	resp, err := d.SipRequestForResponse(request)
+	if err != nil {
+		return http.StatusRequestTimeout
+	}
+	return int(resp.StatusCode())
 }
 func (channel *Channel) Control(PTZCmd string) int {
 	d := channel.device
-	requestMsg := channel.CreateMessage(sip.MESSAGE)
-	requestMsg.ContentType = "Application/MANSCDP+xml"
-	requestMsg.Body = fmt.Sprintf(`<?xml version="1.0"?>
-<Control>
-<CmdType>DeviceControl</CmdType>
-<SN>%d</SN>
-<DeviceID>%s</DeviceID>
-<PTZCmd>%s</PTZCmd>
-</Control>`, d.sn, requestMsg.To.Uri.UserInfo(), PTZCmd)
-	requestMsg.ContentLength = len(requestMsg.Body)
-	return d.SendMessage(requestMsg).Code
+	request := d.CreateRequest(sip.MESSAGE)
+	contentType := sip.ContentType("Application/MANSCDP+xml")
+	request.AppendHeader(&contentType)
+	body := fmt.Sprintf(`<?xml version="1.0"?>
+		<Control>
+		<CmdType>DeviceControl</CmdType>
+		<SN>%d</SN>
+		<DeviceID>%s</DeviceID>
+		<PTZCmd>%s</PTZCmd>
+		</Control>`, d.sn, d.ID, PTZCmd)
+	request.SetBody(body, true)
+	resp, err := d.SipRequestForResponse(request)
+	if err != nil {
+		return http.StatusRequestTimeout
+	}
+	return int(resp.StatusCode())
+}
+
+type InviteOptions struct {
+	Start     string
+	End       string
+	dump      string
+	ssrc      string
+	SSRC      uint32
+	MediaPort uint16
+}
+
+func (o InviteOptions) IsLive() bool {
+	return o.Start == ""
+}
+
+func (o InviteOptions) Record() bool {
+	return o.Start != ""
+}
+
+func (o InviteOptions) Validate() bool {
+	sint, err1 := strconv.ParseInt(o.Start, 10, 0)
+	eint, err2 := strconv.ParseInt(o.End, 10, 0)
+	if err1 != nil || err2 != nil {
+		return false
+	}
+	if sint >= eint {
+		return false
+	}
+	return true
+}
+
+func (o InviteOptions) String() string {
+	return fmt.Sprintf("t=%d %d", o.Start, o.End)
+}
+
+func (o *InviteOptions) CreateSSRC() {
+	ssrc := make([]byte, 10)
+	if o.IsLive() {
+		ssrc[0] = '0'
+	} else {
+		ssrc[0] = '1'
+	}
+	copy(ssrc[1:6], conf.Serial[3:8])
+	randNum := 1000 + rand.Intn(8999)
+	copy(ssrc[6:], strconv.Itoa(randNum))
+	o.ssrc = string(ssrc)
+	_ssrc, _ := strconv.ParseInt(o.ssrc, 10, 0)
+	o.SSRC = uint32(_ssrc)
 }
 
 /*
@@ -141,8 +234,8 @@ f = v/a/编码格式/码率大小/采样率
 f字段中视、音频参数段之间不需空格分割。
 可使用f字段中的分辨率参数标识同一设备不同分辨率的码流。
 */
-func (channel *Channel) Invite(start, end string) (code int) {
-	if start == "" {
+func (channel *Channel) Invite(opt InviteOptions) (code int) {
+	if opt.IsLive() {
 		if !atomic.CompareAndSwapInt32(&channel.state, 0, 1) {
 			return 304
 		}
@@ -152,152 +245,111 @@ func (channel *Channel) Invite(start, end string) (code int) {
 			}
 		}()
 	}
-	channel.Bye()
-	sint, err1 := strconv.ParseInt(start, 10, 0)
-	eint, err2 := strconv.ParseInt(end, 10, 0)
+	channel.Bye(opt.IsLive())
 	d := channel.device
 	streamPath := fmt.Sprintf("%s/%s", d.ID, channel.DeviceID)
 	s := "Play"
-	ssrc := make([]byte, 10)
-	if start != "" {
-		if err1 != nil || err2 != nil {
+	opt.CreateSSRC()
+	if opt.Record() {
+		if !opt.Validate() {
 			return 400
 		}
 		s = "Playback"
-		ssrc[0] = '1'
-		streamPath = fmt.Sprintf("%s/%s/%s-%s", d.ID, channel.DeviceID, start, end)
-	} else {
-		ssrc[0] = '0'
+		streamPath = fmt.Sprintf("%s/%s/%s-%s", d.ID, channel.DeviceID, opt.Start, opt.End)
 	}
 
 	// size := 1
 	// fps := 15
 	// bitrate := 200
 	// fmt.Sprintf("f=v/2/%d/%d/1/%da///", size, fps, bitrate)
-	copy(ssrc[1:6], []byte(config.Serial[3:8]))
-	randNum := rand.Intn(10000)
-	copy(ssrc[6:], []byte(strconv.Itoa(randNum)))
+
+	protocol := ""
+	if opt.MediaPort == 0 {
+		opt.MediaPort = conf.MediaPort
+		if conf.IsMediaNetworkTCP() {
+			protocol = "TCP/"
+			opt.MediaPort = conf.MediaPort + channel.tcpPortIndex
+			if channel.tcpPortIndex++; channel.tcpPortIndex >= conf.MediaPortMax {
+				channel.tcpPortIndex = 0
+			}
+		}
+	}
 	sdpInfo := []string{
 		"v=0",
-		fmt.Sprintf("o=%s 0 0 IN IP4 %s", d.Serial, d.SipIP),
+		fmt.Sprintf("o=%s 0 0 IN IP4 %s", channel.DeviceID, d.mediaIP),
 		"s=" + s,
 		"u=" + channel.DeviceID + ":0",
-		"c=IN IP4 " + d.SipIP,
-		fmt.Sprintf("t=%d %d", sint, eint),
-		fmt.Sprintf("m=video %d RTP/AVP 96 97 98", config.MediaPort),
+		"c=IN IP4 " + d.mediaIP,
+		opt.String(),
+		fmt.Sprintf("m=video %d %sRTP/AVP 96", opt.MediaPort, protocol),
 		"a=recvonly",
 		"a=rtpmap:96 PS/90000",
-		"a=rtpmap:97 MPEG4/90000",
-		"a=rtpmap:98 H264/90000",
-		"y=" + string(ssrc),
+		"y=" + opt.ssrc,
+		"",
 	}
-	invite := channel.CreateMessage(sip.INVITE)
-	invite.ContentType = "application/sdp"
-	invite.Contact = &sip.Contact{
-		Uri: sip.NewURI(fmt.Sprintf("%s@%s:%d", d.Serial, d.SipIP, d.SipPort)),
+	// if config.IsMediaNetworkTCP() {
+	// 	sdpInfo = append(sdpInfo, "a=setup:passive", "a=connection:new")
+	// }
+	invite := channel.CreateRequst(sip.INVITE)
+	contentType := sip.ContentType("application/sdp")
+	invite.AppendHeader(&contentType)
+
+	invite.SetBody(strings.Join(sdpInfo, "\r\n"), true)
+
+	subject := sip.GenericHeader{
+		HeaderName: "Subject", Contents: fmt.Sprintf("%s:%s,%s:0", channel.DeviceID, opt.ssrc, conf.Serial),
 	}
-	invite.Body = strings.Join(sdpInfo, "\r\n") + "\r\n"
-	invite.ContentLength = len(invite.Body)
-	invite.Subject = fmt.Sprintf("%s:%s,%s:0", channel.DeviceID, ssrc, config.Serial)
-	response := d.SendMessage(invite)
-	fmt.Printf("invite response statuscode: %d\n", response.Code)
-	if response.Code == 200 {
-		ds := strings.Split(response.Data.Body, "\r\n")
-		_SSRC, _ := strconv.ParseInt(string(ssrc), 10, 0)
-		SSRC := uint32(_SSRC)
+	invite.AppendHeader(&subject)
+	response, err := d.SipRequestForResponse(invite)
+	if response == nil || err != nil {
+		return http.StatusRequestTimeout
+	}
+	plugin.Info(fmt.Sprintf("Channel :%s invite response status code: %d", channel.DeviceID, response.StatusCode()))
+	code = int(response.StatusCode())
+	if code == 200 {
+		ds := strings.Split(response.Body(), "\r\n")
 		for _, l := range ds {
 			if ls := strings.Split(l, "="); len(ls) > 1 {
 				if ls[0] == "y" && len(ls[1]) > 0 {
-					_SSRC, _ = strconv.ParseInt(ls[1], 10, 0)
-					SSRC = uint32(_SSRC)
+					if _ssrc, err := strconv.ParseInt(ls[1], 10, 0); err == nil {
+						opt.SSRC = uint32(_ssrc)
+					} else {
+						plugin.Error("read invite response y ", zap.Error(err))
+					}
 					break
 				}
 			}
 		}
-		publisher := &Publisher{
-			Stream: &engine.Stream{
-				StreamPath:    streamPath,
-				AutoUnPublish: config.AutoUnPublish,
-			},
+		if opt.dump == "" {
+			opt.dump = conf.DumpPath
 		}
-		if start == "" {
-			publisher.Type = "GB18181 Live"
-			publisher.OnClose = func() {
-				publishers.Remove(SSRC)
-				channel.LivePublisher = nil
-				channel.ByeBye(channel.inviteRes)
-				channel.inviteRes = nil
-				atomic.StoreInt32(&channel.state, 0)
-				if config.AutoInvite {
-					go channel.Invite("", "")
-				}
-			}
-		} else {
-			publisher.Type = "GB18181 Record"
-			publisher.OnClose = func() {
-				publishers.Remove(SSRC)
-				channel.RecordPublisher = nil
-				channel.ByeBye(channel.recordInviteRes)
-				channel.recordInviteRes = nil
-			}
+		publisher := &GBPublisher{
+			InviteOptions: opt,
+			channel:       channel,
+			inviteRes:     &response,
 		}
-		if !publisher.Publish() {
+		if conf.UdpCacheSize > 0 && !conf.IsMediaNetworkTCP() {
+			publisher.udpCache = utils.NewPqRtp()
+		}
+		if plugin.Publish(streamPath, publisher) != nil {
 			return 403
 		}
-		publishers.Add(SSRC, publisher)
-		if start == "" {
-			channel.inviteRes = response.Data
-			channel.LivePublisher = publisher
-		} else {
-			channel.RecordPublisher = publisher
-			channel.recordInviteRes = response.Data
-		}
-		ack := d.CreateMessage(sip.ACK)
-		ack.StartLine = &sip.StartLine{
-			Uri:    sip.NewURI(channel.DeviceID + "@" + d.to.Uri.Domain()),
-			Method: sip.ACK,
-		}
-		ack.From = response.Data.From
-		ack.To = response.Data.To
-		ack.CallID = response.Data.CallID
-		ack.CSeq.ID = invite.CSeq.ID
-		go d.Send(ack)
+		ack := sip.NewAckRequest("", invite, response, "", nil)
+		srv.Send(ack)
+	} else if opt.IsLive() && conf.AutoInvite {
+		time.AfterFunc(time.Second*5, func() {
+			channel.Invite(InviteOptions{})
+		})
 	}
-
-	return response.Code
+	return
 }
-func (channel *Channel) Bye() int {
-	if channel.inviteRes != nil {
-		defer func() {
-			channel.inviteRes = nil
-			if channel.LivePublisher != nil {
-				channel.LivePublisher.Close()
-			}
-		}()
-		return channel.ByeBye(channel.inviteRes).Code
+
+func (channel *Channel) Bye(live bool) int {
+	if live && channel.LivePublisher != nil {
+		return channel.LivePublisher.Bye()
 	}
-	if channel.recordInviteRes != nil {
-		defer func() {
-			channel.recordInviteRes = nil
-			if channel.RecordPublisher != nil {
-				channel.RecordPublisher.Close()
-			}
-		}()
-		return channel.ByeBye(channel.recordInviteRes).Code
+	if !live && channel.RecordPublisher != nil {
+		return channel.RecordPublisher.Bye()
 	}
 	return 404
 }
-func (c *Channel) ByeBye(res *sip.Message) *transaction.Response {
-	if res == nil {
-		return nil
-	}
-	bye := c.device.CreateMessage(sip.BYE)
-	bye.StartLine = &sip.StartLine{
-		Uri:    sip.NewURI(c.DeviceID + "@" + c.device.to.Uri.Domain()),
-		Method: sip.BYE,
-	}
-	bye.From = res.From
-	bye.To = res.To
-	bye.CallID = res.CallID
-	return c.device.SendMessage(bye)
-}

device.go

@@ -1,17 +1,20 @@
 package gb28181
 
 import (
+	"context"
 	"fmt"
+	"net/http"
 	"strings"
 	"sync"
 	"time"
 
-	"github.com/Monibuca/engine/v3"
-	"github.com/Monibuca/plugin-gb28181/v3/sip"
-	"github.com/Monibuca/plugin-gb28181/v3/transaction"
-	"github.com/Monibuca/plugin-gb28181/v3/utils"
-	// . "github.com/Monibuca/utils/v3"
+	"go.uber.org/zap"
+	"m7s.live/engine/v4"
+	"m7s.live/plugin/gb28181/v4/utils"
+
 	// . "github.com/logrusorgru/aurora"
+	"github.com/ghettovoice/gosip/sip"
+	myip "github.com/husanpao/ip"
 )
 
 const TIME_LAYOUT = "2006-01-02T15:04:05"
@@ -33,21 +36,88 @@ func (r *Record) GetPublishStreamPath() string {
 	return fmt.Sprintf("%s/%s", r.DeviceID, r.StartTime)
 }
 
+var (
+	Devices             sync.Map
+	DeviceNonce         sync.Map //保存nonce防止设备伪造
+	DeviceRegisterCount sync.Map //设备注册次数
+)
+
 type Device struct {
-	*transaction.Core `json:"-"`
-	ID                string
-	RegisterTime      time.Time
-	UpdateTime        time.Time
-	Status            string
-	Channels          []*Channel
-	queryChannel      bool
-	sn                int
-	from              *sip.Contact
-	to                *sip.Contact
-	Addr              string
-	SipIP             string //暴露的IP
-	channelMap        map[string]*Channel
-	channelMutex      sync.RWMutex
+	//*transaction.Core `json:"-"`
+	ID              string
+	Name            string
+	Manufacturer    string
+	Model           string
+	Owner           string
+	RegisterTime    time.Time
+	UpdateTime      time.Time
+	LastKeepaliveAt time.Time
+	Status          string
+	Channels        []*Channel
+	sn              int
+	addr            sip.Address
+	sipIP           string //设备对应网卡的服务器ip
+	mediaIP         string //设备对应网卡的服务器ip
+	tx              *sip.ServerTransaction
+	NetAddr         string
+	channelMap      map[string]*Channel
+	channelMutex    sync.RWMutex
+	subscriber      struct {
+		CallID  string
+		Timeout time.Time
+	}
+}
+
+func (config *GB28181Config) StoreDevice(id string, req sip.Request, tx *sip.ServerTransaction) {
+	var d *Device
+	from, _ := req.From()
+	deviceAddr := sip.Address{
+		DisplayName: from.DisplayName,
+		Uri:         from.Address,
+	}
+	deviceIp := req.Source()
+	if _d, loaded := Devices.Load(id); loaded {
+		d = _d.(*Device)
+		d.UpdateTime = time.Now()
+		d.NetAddr = deviceIp
+		d.addr = deviceAddr
+		plugin.Debug("UpdateDevice", zap.String("id", id), zap.String("netaddr", d.NetAddr))
+	} else {
+		servIp := req.Recipient().Host()
+		//根据网卡ip获取对应的公网ip
+		sipIP := config.routes[servIp]
+		//如果相等，则服务器是内网通道.海康摄像头不支持...自动获取
+		if strings.LastIndex(deviceIp, ".") != -1 && strings.LastIndex(servIp, ".") != -1 {
+			if servIp[0:strings.LastIndex(servIp, ".")] == deviceIp[0:strings.LastIndex(deviceIp, ".")] || sipIP == "" {
+				sipIP = servIp
+			}
+		}
+		//如果用户配置过则使用配置的
+		if config.SipIP != "" {
+			sipIP = config.SipIP
+		} else if sipIP == "" {
+			sipIP = myip.InternalIPv4()
+		}
+		mediaIp := sipIP
+		if config.MediaIP != "" {
+			mediaIp = config.MediaIP
+		}
+		plugin.Info("StoreDevice", zap.String("id", id), zap.String("deviceIp", deviceIp), zap.String("servIp", servIp), zap.String("sipIP", sipIP), zap.String("mediaIp", mediaIp))
+		d = &Device{
+			ID:           id,
+			RegisterTime: time.Now(),
+			UpdateTime:   time.Now(),
+			Status:       string(sip.REGISTER),
+			addr:         deviceAddr,
+			sipIP:        sipIP,
+			mediaIP:      mediaIp,
+			tx:           tx,
+			NetAddr:      deviceIp,
+			channelMap:   make(map[string]*Channel),
+		}
+		Devices.Store(id, d)
+		go d.Catalog()
+	}
 }
 
 func (d *Device) addChannel(channel *Channel) {
@@ -58,22 +128,32 @@ func (d *Device) addChannel(channel *Channel) {
 	}
 	d.Channels = append(d.Channels, channel)
 }
+
+func (d *Device) CheckSubStream() {
+	d.channelMutex.Lock()
+	defer d.channelMutex.Unlock()
+	for _, c := range d.Channels {
+		if s := engine.Streams.Get("sub/" + c.DeviceID); s != nil {
+			c.LiveSubSP = s.Path
+		} else {
+			c.LiveSubSP = ""
+		}
+	}
+}
 func (d *Device) UpdateChannels(list []*Channel) {
 	d.channelMutex.Lock()
 	defer d.channelMutex.Unlock()
-	if d.queryChannel {
-		d.Channels = nil
-		d.queryChannel = false
-	}
 	for _, c := range list {
-		if _, ok := Ignores[c.DeviceID]; ok {
+		if _, ok := conf.Ignores[c.DeviceID]; ok {
 			continue
 		}
 		if c.ParentID != "" {
 			path := strings.Split(c.ParentID, "/")
 			parentId := path[len(path)-1]
 			if parent, ok := d.channelMap[parentId]; ok {
-				parent.Children = append(parent.Children, c)
+				if c.DeviceID != parentId {
+					parent.Children = append(parent.Children, c)
+				}
 			} else {
 				d.addChannel(c)
 			}
@@ -82,16 +162,12 @@ func (d *Device) UpdateChannels(list []*Channel) {
 		}
 		if old, ok := d.channelMap[c.DeviceID]; ok {
 			c.ChannelEx = old.ChannelEx
-			if len(old.Children) == 0 {
-				if config.PreFetchRecord {
-					n := time.Now()
-					n = time.Date(n.Year(), n.Month(), n.Day(), 0, 0, 0, 0, time.Local)
-					if len(c.Records) == 0 || (n.Format(TIME_LAYOUT) == c.RecordStartTime && n.Add(time.Hour*24-time.Second).Format(TIME_LAYOUT) == c.RecordEndTime) {
-						go c.QueryRecord(n.Format(TIME_LAYOUT), n.Add(time.Hour*24-time.Second).Format(TIME_LAYOUT))
-					}
-				}
-				if config.AutoInvite && c.LivePublisher == nil {
-					go c.Invite("", "")
+			if conf.PreFetchRecord {
+				n := time.Now()
+				n = time.Date(n.Year(), n.Month(), n.Day(), 0, 0, 0, 0, time.Local)
+				if len(c.Records) == 0 || (n.Format(TIME_LAYOUT) == c.RecordStartTime &&
+					n.Add(time.Hour*24-time.Second).Format(TIME_LAYOUT) == c.RecordEndTime) {
+					go c.QueryRecord(n.Format(TIME_LAYOUT), n.Add(time.Hour*24-time.Second).Format(TIME_LAYOUT))
 				}
 			}
 		} else {
@@ -99,8 +175,11 @@ func (d *Device) UpdateChannels(list []*Channel) {
 				device: d,
 			}
 		}
-		if s := engine.FindStream("sub/" + c.DeviceID); s != nil {
-			c.LiveSubSP = s.StreamPath
+		if conf.AutoInvite && (c.LivePublisher == nil) {
+			go c.Invite(InviteOptions{})
+		}
+		if s := engine.Streams.Get("sub/" + c.DeviceID); s != nil {
+			c.LiveSubSP = s.Path
 		} else {
 			c.LiveSubSP = ""
 		}
@@ -115,46 +194,263 @@ func (d *Device) UpdateRecord(channelId string, list []*Record) {
 	d.channelMutex.RUnlock()
 }
 
-func (d *Device) CreateMessage(Method sip.Method) (requestMsg *sip.Message) {
+func (d *Device) CreateRequest(Method sip.RequestMethod) (req sip.Request) {
 	d.sn++
-	requestMsg = &sip.Message{
-		Mode:        sip.SIP_MESSAGE_REQUEST,
-		MaxForwards: 70,
-		UserAgent:   "Monibuca",
-		StartLine: &sip.StartLine{
-			Method: Method,
-			Uri:    d.to.Uri,
-		}, Via: &sip.Via{
-			Transport: "UDP",
-			Host:      d.Core.SipIP,
-			Port:      fmt.Sprintf("%d", d.SipPort),
-			Params: map[string]string{
-				"branch": fmt.Sprintf("z9hG4bK%s", utils.RandNumString(8)),
-				"rport":  "-1", //only key,no-value
-			},
-		}, From: &sip.Contact{Uri: d.from.Uri, Params: map[string]string{"tag": utils.RandNumString(9)}},
-		To: d.to, CSeq: &sip.CSeq{
-			ID:     uint32(d.sn),
-			Method: Method,
-		}, CallID: utils.RandNumString(10),
-		Addr: d.Addr,
+
+	callId := sip.CallID(utils.RandNumString(10))
+	userAgent := sip.UserAgentHeader("Monibuca")
+	cseq := sip.CSeq{
+		SeqNo:      uint32(d.sn),
+		MethodName: Method,
 	}
+	port := sip.Port(conf.SipPort)
+	serverAddr := sip.Address{
+		//DisplayName: sip.String{Str: d.config.Serial},
+		Uri: &sip.SipUri{
+			FUser: sip.String{Str: conf.Serial},
+			FHost: d.sipIP,
+			FPort: &port,
+		},
+		Params: sip.NewParams().Add("tag", sip.String{Str: utils.RandNumString(9)}),
+	}
+	req = sip.NewRequest(
+		"",
+		Method,
+		d.addr.Uri,
+		"SIP/2.0",
+		[]sip.Header{
+			serverAddr.AsFromHeader(),
+			d.addr.AsToHeader(),
+			&callId,
+			&userAgent,
+			&cseq,
+			serverAddr.AsContactHeader(),
+		},
+		"",
+		nil,
+	)
+
+	req.SetTransport(conf.SipNetwork)
+	req.SetDestination(d.NetAddr)
+	//fmt.Printf("构建请求参数:%s", *&req)
+	// requestMsg.DestAdd, err2 = d.ResolveAddress(requestMsg)
+	// if err2 != nil {
+	// 	return nil
+	// }
+	//intranet ip , let's resolve it with public ip
+	// var deviceIp, deviceSourceIP net.IP
+	// switch addr := requestMsg.DestAdd.(type) {
+	// case *net.UDPAddr:
+	// 	deviceIp = addr.IP
+	// case *net.TCPAddr:
+	// 	deviceIp = addr.IP
+	// }
+
+	// switch addr2 := d.SourceAddr.(type) {
+	// case *net.UDPAddr:
+	// 	deviceSourceIP = addr2.IP
+	// case *net.TCPAddr:
+	// 	deviceSourceIP = addr2.IP
+	// }
+	// if deviceIp.IsPrivate() && !deviceSourceIP.IsPrivate() {
+	// 	requestMsg.DestAdd = d.SourceAddr
+	// }
 	return
 }
-func (d *Device) Query() int {
-	d.queryChannel = true
-	requestMsg := d.CreateMessage(sip.MESSAGE)
-	requestMsg.ContentType = "Application/MANSCDP+xml"
-	requestMsg.Body = fmt.Sprintf(`<?xml version="1.0"?>
-<Query>
-<CmdType>Catalog</CmdType>
-<SN>%d</SN>
-<DeviceID>%s</DeviceID>
-</Query>`, d.sn, requestMsg.To.Uri.UserInfo())
-	requestMsg.ContentLength = len(requestMsg.Body)
-	response := d.SendMessage(requestMsg)
-	if response.Data != nil && response.Data.Via.Params["received"] != "" {
-		d.SipIP = response.Data.Via.Params["received"]
+
+func (d *Device) Subscribe() int {
+	request := d.CreateRequest(sip.SUBSCRIBE)
+	if d.subscriber.CallID != "" {
+		callId := sip.CallID(utils.RandNumString(10))
+		request.AppendHeader(&callId)
+	}
+	expires := sip.Expires(3600)
+	d.subscriber.Timeout = time.Now().Add(time.Second * time.Duration(expires))
+	contentType := sip.ContentType("Application/MANSCDP+xml")
+	request.AppendHeader(&contentType)
+	request.AppendHeader(&expires)
+
+	request.SetBody(BuildCatalogXML(d.sn, d.ID), true)
+
+	response, err := d.SipRequestForResponse(request)
+	if err == nil && response != nil {
+		if response.StatusCode() == 200 {
+			callId, _ := request.CallID()
+			d.subscriber.CallID = string(*callId)
+		} else {
+			d.subscriber.CallID = ""
+		}
+		return int(response.StatusCode())
+	}
+	return http.StatusRequestTimeout
+}
+
+func (d *Device) Catalog() int {
+	request := d.CreateRequest(sip.MESSAGE)
+	expires := sip.Expires(3600)
+	d.subscriber.Timeout = time.Now().Add(time.Second * time.Duration(expires))
+	contentType := sip.ContentType("Application/MANSCDP+xml")
+
+	request.AppendHeader(&contentType)
+	request.AppendHeader(&expires)
+	request.SetBody(BuildCatalogXML(d.sn, d.ID), true)
+	// 输出Sip请求设备通道信息信令
+	plugin.Sugar().Debugf("SIP->Catalog:%s", request)
+	resp, err := d.SipRequestForResponse(request)
+	if err == nil && resp != nil {
+		return int(resp.StatusCode())
+	}
+	return http.StatusRequestTimeout
+}
+
+func (d *Device) QueryDeviceInfo(req *sip.Request) {
+	for i := time.Duration(5); i < 100; i++ {
+
+		plugin.Info(fmt.Sprintf("QueryDeviceInfo:%s ipaddr:%s", d.ID, d.NetAddr))
+		time.Sleep(time.Second * i)
+		request := d.CreateRequest(sip.MESSAGE)
+		contentType := sip.ContentType("Application/MANSCDP+xml")
+		request.AppendHeader(&contentType)
+		request.SetBody(BuildDeviceInfoXML(d.sn, d.ID), true)
+
+		response, _ := d.SipRequestForResponse(request)
+		if response != nil {
+			// via, _ := response.ViaHop()
+
+			// if via != nil && via.Params.Has("received") {
+			// 	received, _ := via.Params.Get("received")
+			// 	d.SipIP = received.String()
+			// }
+			if response.StatusCode() != 200 {
+				plugin.Sugar().Errorf("device %s send Catalog : %d\n", d.ID, response.StatusCode())
+			} else {
+				d.Subscribe()
+				break
+			}
+		}
+	}
+}
+
+func (d *Device) SipRequestForResponse(request sip.Request) (sip.Response, error) {
+	return srv.RequestWithContext(context.Background(), request)
+}
+
+// MobilePositionSubscribe 移动位置订阅
+func (d *Device) MobilePositionSubscribe(id string, expires int, interval int) (code int) {
+	mobilePosition := d.CreateRequest(sip.SUBSCRIBE)
+	if d.subscriber.CallID != "" {
+		callId := sip.CallID(utils.RandNumString(10))
+		mobilePosition.ReplaceHeaders(callId.Name(), []sip.Header{&callId})
+	}
+	expiresHeader := sip.Expires(expires)
+	d.subscriber.Timeout = time.Now().Add(time.Second * time.Duration(expires))
+	contentType := sip.ContentType("Application/MANSCDP+xml")
+	mobilePosition.AppendHeader(&contentType)
+	mobilePosition.AppendHeader(&expiresHeader)
+
+	mobilePosition.SetBody(BuildDevicePositionXML(d.sn, id, interval), true)
+
+	response, err := d.SipRequestForResponse(mobilePosition)
+	if err == nil && response != nil {
+		if response.StatusCode() == 200 {
+			callId, _ := mobilePosition.CallID()
+			d.subscriber.CallID = callId.String()
+		} else {
+			d.subscriber.CallID = ""
+		}
+		return int(response.StatusCode())
+	}
+	return http.StatusRequestTimeout
+}
+
+// UpdateChannelPosition 更新通道GPS坐标
+func (d *Device) UpdateChannelPosition(channelId string, gpsTime string, lng string, lat string) {
+	if c, ok := d.channelMap[channelId]; ok {
+		c.ChannelEx.GpsTime, _ = time.ParseInLocation("2006-01-02 15:04:05", gpsTime, time.Local)
+		c.ChannelEx.Longitude = lng
+		c.ChannelEx.Latitude = lat
+		plugin.Sugar().Debugf("更新通道[%s]坐标成功\n", c.Name)
+	} else {
+		plugin.Sugar().Debugf("更新失败，未找到通道[%s]\n", channelId)
+	}
+}
+
+// UpdateChannelStatus 目录订阅消息处理：新增/移除/更新通道或者更改通道状态
+func (d *Device) UpdateChannelStatus(deviceList []*notifyMessage) {
+	for _, v := range deviceList {
+		switch v.Event {
+		case "ON":
+			plugin.Debug("收到通道上线通知")
+			d.channelOnline(v.DeviceID)
+		case "OFF":
+			plugin.Debug("收到通道离线通知")
+			d.channelOffline(v.DeviceID)
+		case "VLOST":
+			plugin.Debug("收到通道视频丢失通知")
+			d.channelOffline(v.DeviceID)
+		case "DEFECT":
+			plugin.Debug("收到通道故障通知")
+			d.channelOffline(v.DeviceID)
+		case "ADD":
+			plugin.Debug("收到通道新增通知")
+			channel := Channel{
+				DeviceID:     v.DeviceID,
+				ParentID:     v.ParentID,
+				Name:         v.Name,
+				Manufacturer: v.Manufacturer,
+				Model:        v.Model,
+				Owner:        v.Owner,
+				CivilCode:    v.CivilCode,
+				Address:      v.Address,
+				Parental:     v.Parental,
+				SafetyWay:    v.SafetyWay,
+				RegisterWay:  v.RegisterWay,
+				Secrecy:      v.Secrecy,
+				Status:       v.Status,
+			}
+			d.addChannel(&channel)
+		case "DEL":
+			//删除
+			plugin.Debug("收到通道删除通知")
+			delete(d.channelMap, v.DeviceID)
+		case "UPDATE":
+			plugin.Debug("收到通道更新通知")
+			// 更新通道
+			channel := &Channel{
+				DeviceID:     v.DeviceID,
+				ParentID:     v.ParentID,
+				Name:         v.Name,
+				Manufacturer: v.Manufacturer,
+				Model:        v.Model,
+				Owner:        v.Owner,
+				CivilCode:    v.CivilCode,
+				Address:      v.Address,
+				Parental:     v.Parental,
+				SafetyWay:    v.SafetyWay,
+				RegisterWay:  v.RegisterWay,
+				Secrecy:      v.Secrecy,
+				Status:       v.Status,
+			}
+			channels := []*Channel{channel}
+			d.UpdateChannels(channels)
+		}
+	}
+}
+
+func (d *Device) channelOnline(DeviceID string) {
+	if c, ok := d.channelMap[DeviceID]; ok {
+		c.Status = "ON"
+		plugin.Sugar().Debugf("通道[%s]在线\n", c.Name)
+	} else {
+		plugin.Sugar().Debugf("更新通道[%s]状态失败，未找到\n", DeviceID)
+	}
+}
+
+func (d *Device) channelOffline(DeviceID string) {
+	if c, ok := d.channelMap[DeviceID]; ok {
+		c.Status = "OFF"
+		plugin.Sugar().Debugf("通道[%s]离线\n", c.Name)
+	} else {
+		plugin.Sugar().Debugf("更新通道[%s]状态失败，未找到\n", DeviceID)
 	}
-	return response.Code
 }

go.mod

@@ -1,12 +1,52 @@
-module github.com/Monibuca/plugin-gb28181/v3
+module m7s.live/plugin/gb28181/v4
 
-go 1.13
+go 1.18
 
 require (
-	github.com/Monibuca/engine/v3 v3.2.3
-	github.com/Monibuca/utils/v3 v3.0.1
+	github.com/ghettovoice/gosip v0.0.0-20220420085539-cf932c28a8fe
+	github.com/husanpao/ip v0.0.0-20220711072141-f1e1174bc11b
 	github.com/logrusorgru/aurora v2.0.3+incompatible
-	github.com/pion/rtp v1.6.5
-	golang.org/x/net v0.0.0-20210716203947-853a461950ff
-	golang.org/x/text v0.3.6
+	github.com/pion/rtp/v2 v2.0.0-20220302185659-b3d10fc096b0
+	go.uber.org/zap v1.21.0
+	golang.org/x/net v0.0.0-20220607020251-c690dde0001d
+	golang.org/x/text v0.3.7
+	m7s.live/engine/v4 v4.5.0
+)
+
+require (
+	github.com/cnotch/ipchub v1.1.0 // indirect
+	github.com/discoviking/fsm v0.0.0-20150126104936-f4a273feecca // indirect
+	github.com/fsnotify/fsnotify v1.5.4 // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/gobwas/httphead v0.1.0 // indirect
+	github.com/gobwas/pool v0.2.1 // indirect
+	github.com/gobwas/ws v1.1.0 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/lufia/plan9stats v0.0.0-20220517141722-cf486979b281 // indirect
+	github.com/mattn/go-colorable v0.1.12 // indirect
+	github.com/mattn/go-isatty v0.0.14 // indirect
+	github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
+	github.com/onsi/ginkgo v1.16.5 // indirect
+	github.com/onsi/gomega v1.19.0 // indirect
+	github.com/pion/randutil v0.1.0 // indirect
+	github.com/pion/rtp v1.7.13 // indirect
+	github.com/power-devops/perfstat v0.0.0-20220216144756-c35f1ee13d7c // indirect
+	github.com/q191201771/naza v0.30.2 // indirect
+	github.com/satori/go.uuid v1.2.1-0.20181028125025-b2ce2384e17b // indirect
+	github.com/shirou/gopsutil/v3 v3.22.5 // indirect
+	github.com/sirupsen/logrus v1.8.1 // indirect
+	github.com/tevino/abool v1.2.0 // indirect
+	github.com/tklauser/go-sysconf v0.3.10 // indirect
+	github.com/tklauser/numcpus v0.5.0 // indirect
+	github.com/x-cray/logrus-prefixed-formatter v0.5.2 // indirect
+	github.com/yusufpapurcu/wmi v1.2.2 // indirect
+	go.uber.org/atomic v1.9.0 // indirect
+	go.uber.org/multierr v1.8.0 // indirect
+	golang.org/x/crypto v0.0.0-20220525230936-793ad666bf5e // indirect
+	golang.org/x/sync v0.0.0-20220601150217-0de741cfad7f // indirect
+	golang.org/x/sys v0.0.0-20220615213510-4f61da869c0c // indirect
+	golang.org/x/term v0.0.0-20220526004731-065cf7ba2467 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+
 )

go.sum

@@ -1,9 +1,6 @@
-github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/Monibuca/engine/v3 v3.2.3 h1:NHdoBX4bkx4cQ1r/J4tL+QoTN/QS9ohpwuKygk1Zi6I=
-github.com/Monibuca/engine/v3 v3.2.3/go.mod h1:odyqD/VTQDN4qgzajsgn7kW7MWDIzTHt+j+BcI8i+4g=
-github.com/Monibuca/utils/v3 v3.0.1 h1:t5DBWoLeeRRw6k4E8QgQaklKwn/9gkQR81mAIcx0juY=
-github.com/Monibuca/utils/v3 v3.0.1/go.mod h1:RpNS95gapWs6gimwh8Xn2x72FN5tO7Powabj7dTFyvE=
+github.com/benbjohnson/clock v1.1.0 h1:Q92kusRqC1XV2MjkWETPvjJVqKetz1OzxZB7mHJLju8=
+github.com/benbjohnson/clock v1.1.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZxNJlLklBHA=
 github.com/cnotch/apirouter v0.0.0-20200731232942-89e243a791f3/go.mod h1:5deJPLON/x/s2dLOQfuKS0lenhOIT4xX0pvtN/OEIuY=
 github.com/cnotch/ipchub v1.1.0 h1:hH0lh2mU3AZXPiqMwA0pdtqrwo7PFIMRGush9OobMUs=
 github.com/cnotch/ipchub v1.1.0/go.mod h1:2PbeBs2q2VxxTVCn1eYCDwpAWuVXbq1+N0FU7GimOH4=
@@ -12,75 +9,208 @@ github.com/cnotch/queue v0.0.0-20200326024423-6e88bdbf2ad4/go.mod h1:zOssjAlNusO
 github.com/cnotch/queue v0.0.0-20201224060551-4191569ce8f6/go.mod h1:zOssjAlNusOxvtaqT+EMA+Iyi8rrtKr4/XfzN1Fgoeg=
 github.com/cnotch/scheduler v0.0.0-20200522024700-1d2da93eefc5/go.mod h1:F4GE3SZkJZ8an1Y0ZCqvSM3jeozNuKzoC67erG1PhIo=
 github.com/cnotch/xlog v0.0.0-20201208005456-cfda439cd3a0/go.mod h1:RW9oHsR79ffl3sR3yMGgxYupMn2btzdtJUwoxFPUE5E=
-github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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+github.com/discoviking/fsm v0.0.0-20150126104936-f4a273feecca/go.mod h1:W+3LQaEkN8qAwwcw0KC546sUEnX86GIT8CcMLZC4mG0=
 github.com/emitter-io/address v1.0.0/go.mod h1:GfZb5+S/o8694B1GMGK2imUYQyn2skszMvGNA5D84Ug=
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-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+m7s.live/engine/v4 v4.5.0 h1:8UP1Yg0ryiwvKlYtwf4g+RX6EZPDEnpNWzrWcnsxU3U=
+m7s.live/engine/v4 v4.5.0/go.mod h1:uzpGiVnIcuoXehpvqOj9iTVxnyf7RZQZ/Ikiwyjs01E=

handle.go

@@ -0,0 +1,267 @@
+package gb28181
+
+import (
+	"bytes"
+	"crypto/md5"
+	"encoding/xml"
+	"fmt"
+
+	"github.com/logrusorgru/aurora"
+	"go.uber.org/zap"
+	"m7s.live/plugin/gb28181/v4/utils"
+
+	"github.com/ghettovoice/gosip/sip"
+
+	"net/http"
+	"time"
+
+	"golang.org/x/net/html/charset"
+)
+
+type Authorization struct {
+	*sip.Authorization
+}
+
+func (a *Authorization) Verify(username, passwd, realm, nonce string) bool {
+
+	//1、将 username,realm,password 依次组合获取 1 个字符串，并用算法加密的到密文 r1
+	s1 := fmt.Sprintf("%s:%s:%s", username, realm, passwd)
+	r1 := a.getDigest(s1)
+	//2、将 method，即REGISTER ,uri 依次组合获取 1 个字符串，并对这个字符串使用算法 加密得到密文 r2
+	s2 := fmt.Sprintf("REGISTER:%s", a.Uri())
+	r2 := a.getDigest(s2)
+
+	if r1 == "" || r2 == "" {
+		fmt.Println("Authorization algorithm wrong")
+		return false
+	}
+	//3、将密文 1，nonce 和密文 2 依次组合获取 1 个字符串，并对这个字符串使用算法加密，获得密文 r3，即Response
+	s3 := fmt.Sprintf("%s:%s:%s", r1, nonce, r2)
+	r3 := a.getDigest(s3)
+
+	//4、计算服务端和客户端上报的是否相等
+	return r3 == a.Response()
+}
+
+func (a *Authorization) getDigest(raw string) string {
+	switch a.Algorithm() {
+	case "MD5":
+		return fmt.Sprintf("%x", md5.Sum([]byte(raw)))
+	default: //如果没有算法，默认使用MD5
+		return fmt.Sprintf("%x", md5.Sum([]byte(raw)))
+	}
+}
+
+func (config *GB28181Config) OnRegister(req sip.Request, tx sip.ServerTransaction) {
+	from, _ := req.From()
+
+	id := from.Address.User().String()
+	plugin.Debug(id)
+
+	passAuth := false
+	// 不需要密码情况
+	if config.Username == "" && config.Password == "" {
+		passAuth = true
+	} else {
+		// 需要密码情况 设备第一次上报，返回401和加密算法
+		if hdrs := req.GetHeaders("Authorization"); len(hdrs) > 0 {
+			authenticateHeader := hdrs[0].(*sip.GenericHeader)
+			auth := &Authorization{sip.AuthFromValue(authenticateHeader.Contents)}
+
+			// 有些摄像头没有配置用户名的地方，用户名就是摄像头自己的国标id
+			var username string
+			if auth.Username() == id {
+				username = id
+			} else {
+				username = config.Username
+			}
+
+			if dc, ok := DeviceRegisterCount.LoadOrStore(id, 1); ok && dc.(int) > MaxRegisterCount {
+				response := sip.NewResponseFromRequest("", req, http.StatusForbidden, "Forbidden", "")
+				tx.Respond(response)
+				return
+			} else {
+				// 设备第二次上报，校验
+				_nonce, loaded := DeviceNonce.Load(id)
+				if loaded && auth.Verify(username, config.Password, config.Realm, _nonce.(string)) {
+					passAuth = true
+				} else {
+					DeviceRegisterCount.Store(id, dc.(int)+1)
+				}
+			}
+		}
+	}
+	if passAuth {
+		config.StoreDevice(id, req, &tx)
+		DeviceNonce.Delete(id)
+		DeviceRegisterCount.Delete(id)
+		resp := sip.NewResponseFromRequest("", req, http.StatusOK, "OK", "")
+		to, _ := resp.To()
+		resp.ReplaceHeaders("To", []sip.Header{&sip.ToHeader{Address: to.Address, Params: sip.NewParams().Add("tag", sip.String{Str: utils.RandNumString(9)})}})
+		resp.RemoveHeader("Allow")
+		expires := sip.Expires(3600)
+		resp.AppendHeader(&expires)
+		resp.AppendHeader(&sip.GenericHeader{
+			HeaderName: "Date",
+			Contents:   time.Now().Format(TIME_LAYOUT),
+		})
+		_ = tx.Respond(resp)
+	} else {
+		response := sip.NewResponseFromRequest("", req, http.StatusUnauthorized, "Unauthorized", "")
+		_nonce, _ := DeviceNonce.LoadOrStore(id, utils.RandNumString(32))
+		auth := fmt.Sprintf(
+			`Digest realm="%s",algorithm=%s,nonce="%s"`,
+			config.Realm,
+			"MD5",
+			_nonce.(string),
+		)
+		response.AppendHeader(&sip.GenericHeader{
+			HeaderName: "WWW-Authenticate",
+			Contents:   auth,
+		})
+		_ = tx.Respond(response)
+	}
+}
+func (config *GB28181Config) OnMessage(req sip.Request, tx sip.ServerTransaction) {
+	from, _ := req.From()
+	id := from.Address.User().String()
+	if v, ok := Devices.Load(id); ok {
+		d := v.(*Device)
+		if d.Status == string(sip.REGISTER) {
+			d.Status = "ONLINE"
+			//go d.QueryDeviceInfo(req)
+		}
+		d.UpdateTime = time.Now()
+		temp := &struct {
+			XMLName      xml.Name
+			CmdType      string
+			DeviceID     string
+			DeviceName   string
+			Manufacturer string
+			Model        string
+			Channel      string
+			DeviceList   []*Channel `xml:"DeviceList>Item"`
+			RecordList   []*Record  `xml:"RecordList>Item"`
+		}{}
+		decoder := xml.NewDecoder(bytes.NewReader([]byte(req.Body())))
+		decoder.CharsetReader = charset.NewReaderLabel
+		err := decoder.Decode(temp)
+		if err != nil {
+			err = utils.DecodeGbk(temp, []byte(req.Body()))
+			if err != nil {
+				plugin.Error("decode catelog err", zap.Error(err))
+			}
+		}
+		var body string
+		switch temp.CmdType {
+		case "Keepalive":
+			d.LastKeepaliveAt = time.Now()
+			//callID !="" 说明是订阅的事件类型信息
+			if d.Channels == nil {
+				go d.Catalog()
+			} else {
+				if d.subscriber.CallID != "" && d.LastKeepaliveAt.After(d.subscriber.Timeout) {
+					go d.Catalog()
+				} else {
+					for _, c := range d.Channels {
+						if config.AutoInvite &&
+							(c.LivePublisher == nil) {
+							c.Invite(InviteOptions{})
+						}
+					}
+				}
+
+			}
+			d.CheckSubStream()
+		case "Catalog":
+			d.UpdateChannels(temp.DeviceList)
+		case "RecordInfo":
+			d.UpdateRecord(temp.DeviceID, temp.RecordList)
+		case "DeviceInfo":
+			// 主设备信息
+			d.Name = temp.DeviceName
+			d.Manufacturer = temp.Manufacturer
+			d.Model = temp.Model
+		case "Alarm":
+			d.Status = "Alarmed"
+			body = BuildAlarmResponseXML(d.ID)
+		default:
+			plugin.Sugar().Warnf("DeviceID:", aurora.Red(d.ID), " Not supported CmdType : "+temp.CmdType+" body:\n", req.Body)
+			response := sip.NewResponseFromRequest("", req, http.StatusBadRequest, "", "")
+			tx.Respond(response)
+			return
+		}
+
+		tx.Respond(sip.NewResponseFromRequest("", req, http.StatusOK, "OK", body))
+	}
+}
+func (config *GB28181Config) onBye(req sip.Request, tx sip.ServerTransaction) {
+	tx.Respond(sip.NewResponseFromRequest("", req, http.StatusOK, "OK", ""))
+}
+
+// OnNotify 订阅通知处理
+func (config *GB28181Config) OnNotify(req sip.Request, tx sip.ServerTransaction) {
+	from, _ := req.From()
+	id := from.Address.User().String()
+	if v, ok := Devices.Load(id); ok {
+		d := v.(*Device)
+		d.UpdateTime = time.Now()
+		temp := &struct {
+			XMLName   xml.Name
+			CmdType   string
+			DeviceID  string
+			Time      string //位置订阅-GPS时间
+			Longitude string //位置订阅-经度
+			Latitude  string //位置订阅-维度
+			// Speed      string           //位置订阅-速度(km/h)(可选)
+			// Direction  string           //位置订阅-方向(取值为当前摄像头方向与正北方的顺时针夹角,取值范围0°~360°,单位:°)(可选)
+			// Altitude   string           //位置订阅-海拔高度,单位:m(可选)
+			DeviceList []*notifyMessage `xml:"DeviceList>Item"` //目录订阅
+		}{}
+		decoder := xml.NewDecoder(bytes.NewReader([]byte(req.Body())))
+		decoder.CharsetReader = charset.NewReaderLabel
+		err := decoder.Decode(temp)
+		if err != nil {
+			err = utils.DecodeGbk(temp, []byte(req.Body()))
+			if err != nil {
+				plugin.Error("decode catelog err", zap.Error(err))
+			}
+		}
+		var body string
+		switch temp.CmdType {
+		case "Catalog":
+			//目录状态
+			d.UpdateChannelStatus(temp.DeviceList)
+		case "MobilePosition":
+			//更新channel的坐标
+			d.UpdateChannelPosition(temp.DeviceID, temp.Time, temp.Longitude, temp.Latitude)
+		// case "Alarm":
+		// 	//报警事件通知 TODO
+		default:
+			plugin.Sugar().Warnf("DeviceID:", aurora.Red(d.ID), " Not supported CmdType : "+temp.CmdType+" body:", req.Body)
+			response := sip.NewResponseFromRequest("", req, http.StatusBadRequest, "", "")
+			tx.Respond(response)
+			return
+		}
+
+		tx.Respond(sip.NewResponseFromRequest("", req, http.StatusOK, "OK", body))
+	}
+}
+
+type notifyMessage struct {
+	DeviceID     string
+	ParentID     string
+	Name         string
+	Manufacturer string
+	Model        string
+	Owner        string
+	CivilCode    string
+	Address      string
+	Parental     int
+	SafetyWay    int
+	RegisterWay  int
+	Secrecy      int
+	Status       string
+	//状态改变事件 ON:上线,OFF:离线,VLOST:视频丢失,DEFECT:故障,ADD:增加,DEL:删除,UPDATE:更新(必选)
+	Event string
+}

main.go

@@ -1,301 +1,99 @@
 package gb28181
 
 import (
-	"bytes"
-	"encoding/xml"
-	"log"
-	"net"
-	"net/http"
-	"strconv"
-	"sync"
-	"time"
+	"fmt"
+	"strings"
 
-	"github.com/Monibuca/engine/v3"
-	"github.com/Monibuca/plugin-gb28181/v3/sip"
-	"github.com/Monibuca/plugin-gb28181/v3/transaction"
-    "github.com/Monibuca/plugin-gb28181/v3/utils"
-    . "github.com/Monibuca/utils/v3"
-	. "github.com/logrusorgru/aurora"
-	"github.com/pion/rtp"
-	"golang.org/x/net/html/charset"
+	myip "github.com/husanpao/ip"
+	. "m7s.live/engine/v4"
+	"m7s.live/engine/v4/config"
 )
 
-var (
-	Devices sync.Map
-	Ignores = make(map[string]struct{})
-	publishers Publishers
-)
+type GB28181Config struct {
+	AutoInvite     bool
+	PreFetchRecord bool
 
-func FindChannel(deviceId string, channelId string) (c *Channel) {
-	if v, ok := Devices.Load(deviceId); ok {
-		d := v.(*Device)
-		d.channelMutex.RLock()
-		c = d.channelMap[channelId]
-		d.channelMutex.RUnlock()
-	}
-	return
+	//sip服务器的配置
+	SipNetwork string //传输协议，默认UDP，可选TCP
+	SipIP      string //sip 服务器公网IP
+	SipPort    uint16 //sip 服务器端口，默认 5060
+	Serial     string //sip 服务器 id, 默认 34020000002000000001
+	Realm      string //sip 服务器域，默认 3402000000
+	Username   string //sip 服务器账号
+	Password   string //sip 服务器密码
+
+	AckTimeout        uint16 //sip 服务应答超时，单位秒
+	RegisterValidity  int    //注册有效期，单位秒，默认 3600
+	RegisterInterval  int    //注册间隔，单位秒，默认 60
+	HeartbeatInterval int    //心跳间隔，单位秒，默认 60
+	HeartbeatRetry    int    //心跳超时次数，默认 3
+
+	//媒体服务器配置
+	MediaIP          string //媒体服务器地址
+	MediaPort        uint16 //媒体服务器端口
+	MediaNetwork     string //媒体传输协议，默认UDP，可选TCP
+	MediaPortMin     uint16
+	MediaPortMax     uint16
+	MediaIdleTimeout uint16 //推流超时时间，超过则断开链接，让设备重连
+
+	// WaitKeyFrame      bool //是否等待关键帧，如果等待，则在收到第一个关键帧之前，忽略所有媒体流
+	RemoveBanInterval int //移除禁止设备间隔
+	UdpCacheSize      int //udp缓存大小
+
+	config.Publish
+	Server
+	LogLevel string //trace, debug, info, warn, error, fatal, panic
+	routes   map[string]string
+	DumpPath string //dump PS流本地文件路径
 }
 
-type Publishers struct {
-	data map[uint32]*Publisher
-	sync.RWMutex
+func (c *GB28181Config) initRoutes() {
+	c.routes = make(map[string]string)
+	tempIps := myip.LocalAndInternalIPs()
+	for k, v := range tempIps {
+		c.routes[k] = v
+		c.routes[k[0:strings.LastIndex(k, ".")]] = k
+	}
+	plugin.Info(fmt.Sprintf("LocalAndInternalIPs detail: %s", c.routes))
 }
-
-func (p *Publishers) Add(key uint32, pp *Publisher) {
-	p.Lock()
-	p.data[key] = pp
-	p.Unlock()
-}
-func (p *Publishers) Remove(key uint32) {
-	p.Lock()
-	delete(p.data, key)
-	p.Unlock()
-}
-func (p *Publishers) Get(key uint32) *Publisher {
-	p.RLock()
-	defer p.RUnlock()
-	return p.data[key]
-}
-
-var config = struct {
-	Serial          string
-	Realm           string
-	ListenAddr      string
-	Expires         int
-	MediaPort       uint16
-	AutoInvite      bool
-	AutoUnPublish   bool
-	Ignore          []string
-	CatalogInterval int
-	PreFetchRecord  bool
-}{"34020000002000000001", "3402000000", "127.0.0.1:5060", 3600, 58200, false, true, nil, 30, false}
-
-func init() {
-	engine.InstallPlugin(&engine.PluginConfig{
-		Name:   "GB28181",
-		Config: &config,
-		Run:    run,
-	})
-	publishers.data = make(map[uint32]*Publisher)
-}
-
-func run() {
-	ipAddr, err := net.ResolveUDPAddr("", config.ListenAddr)
-	if err != nil {
-		log.Fatal(err)
-	}
-	Print(Green("server gb28181 start at"), BrightBlue(config.ListenAddr))
-	for _, id := range config.Ignore {
-		Ignores[id] = struct{}{}
-	}
-	config := &transaction.Config{
-		SipIP:             ipAddr.IP.String(),
-		SipPort:           uint16(ipAddr.Port),
-		SipNetwork:        "UDP",
-		Serial:            config.Serial,
-		Realm:             config.Realm,
-		AckTimeout:        10,
-		MediaIP:           ipAddr.IP.String(),
-		RegisterValidity:  config.Expires,
-		RegisterInterval:  60,
-		HeartbeatInterval: 60,
-		HeartbeatRetry:    3,
-		AudioEnable:       true,
-		WaitKeyFrame:      true,
-		MediaIdleTimeout:  30,
-		CatalogInterval:   config.CatalogInterval,
-	}
-	http.HandleFunc("/api/gb28181/query/records", func(w http.ResponseWriter, r *http.Request) {
-		CORS(w, r)
-		id := r.URL.Query().Get("id")
-		channel := r.URL.Query().Get("channel")
-		startTime := r.URL.Query().Get("startTime")
-		endTime := r.URL.Query().Get("endTime")
-		if c := FindChannel(id, channel); c != nil {
-			w.WriteHeader(c.QueryRecord(startTime, endTime))
-		} else {
-			w.WriteHeader(404)
-		}
-	})
-	http.HandleFunc("/api/gb28181/list", func(w http.ResponseWriter, r *http.Request) {
-		CORS(w, r)
-		sse := NewSSE(w, r.Context())
-		for {
-			var list []*Device
-			Devices.Range(func(key, value interface{}) bool {
-				device := value.(*Device)
-				if time.Since(device.UpdateTime) > time.Duration(config.RegisterValidity)*time.Second {
-					Devices.Delete(key)
-				} else {
-					list = append(list, device)
-				}
-				return true
-			})
-			sse.WriteJSON(list)
-			select {
-			case <-time.After(time.Second * 5):
-			case <-sse.Done():
-				return
-			}
-		}
-	})
-	http.HandleFunc("/api/gb28181/control", func(w http.ResponseWriter, r *http.Request) {
-		CORS(w, r)
-		id := r.URL.Query().Get("id")
-		channel := r.URL.Query().Get("channel")
-		ptzcmd := r.URL.Query().Get("ptzcmd")
-		if c := FindChannel(id, channel); c != nil {
-			w.WriteHeader(c.Control(ptzcmd))
-		} else {
-			w.WriteHeader(404)
-		}
-	})
-	http.HandleFunc("/api/gb28181/invite", func(w http.ResponseWriter, r *http.Request) {
-		CORS(w, r)
-		query := r.URL.Query()
-		id := query.Get("id")
-		channel := r.URL.Query().Get("channel")
-		startTime := query.Get("startTime")
-		endTime := query.Get("endTime")
-		if c := FindChannel(id, channel); c != nil {
-			if startTime == "" && c.LivePublisher != nil {
-				w.WriteHeader(304) //直播流已存在
-			} else {
-				w.WriteHeader(c.Invite(startTime, endTime))
-			}
-		} else {
-			w.WriteHeader(404)
-		}
-	})
-	http.HandleFunc("/api/gb28181/bye", func(w http.ResponseWriter, r *http.Request) {
-		CORS(w, r)
-		id := r.URL.Query().Get("id")
-		channel := r.URL.Query().Get("channel")
-		if c := FindChannel(id, channel); c != nil {
-			w.WriteHeader(c.Bye())
-		} else {
-			w.WriteHeader(404)
-		}
-	})
-	s := transaction.NewCore(config)
-	s.OnRegister = func(msg *sip.Message) {
-		id := msg.From.Uri.UserInfo()
-		d := &Device{
-			ID:           id,
-			RegisterTime: time.Now(),
-			UpdateTime:   time.Now(),
-			Status:       string(sip.REGISTER),
-			Core:         s,
-			from:         &sip.Contact{Uri: msg.StartLine.Uri, Params: make(map[string]string)},
-			to:           msg.To,
-			Addr:         msg.Via.GetSendBy(),
-			SipIP:        config.MediaIP,
-			channelMap:   make(map[string]*Channel),
-		}
-		if old, ok := Devices.Load(id); !ok {
-			go d.Query()
-		} else {
-			oldD := old.(*Device)
-			d.RegisterTime = oldD.RegisterTime
-			d.channelMap = oldD.channelMap
-			d.Status = oldD.Status
-		}
-		Devices.Store(id, d)
-	}
-	s.OnMessage = func(msg *sip.Message) bool {
-		if v, ok := Devices.Load(msg.From.Uri.UserInfo()); ok {
-			d := v.(*Device)
-			if d.Status == string(sip.REGISTER) {
-				d.Status = "ONLINE"
-			}
-			d.UpdateTime = time.Now()
-			temp := &struct {
-				XMLName    xml.Name
-				CmdType    string
-				DeviceID   string
-				DeviceList []*Channel `xml:"DeviceList>Item"`
-				RecordList []*Record  `xml:"RecordList>Item"`
-			}{}
-			decoder := xml.NewDecoder(bytes.NewReader([]byte(msg.Body)))
-			decoder.CharsetReader = charset.NewReaderLabel
-			err := decoder.Decode(temp)
-            if err != nil {
-                err = utils.DecodeGbk(temp, []byte(msg.Body))
-                log.Printf("decode catelog err: %s", err)
-            }
-			switch temp.XMLName.Local {
-			case "Notify":
-				if d.Channels == nil {
-					go d.Query()
-				}
-			case "Response":
-				switch temp.CmdType {
-				case "Catalog":
-					d.UpdateChannels(temp.DeviceList)
-				case "RecordInfo":
-					d.UpdateRecord(temp.DeviceID, temp.RecordList)
-				}
-			}
-			return true
-		}
-		return false
-	}
-	//OnStreamClosedHooks.AddHook(func(stream *Stream) {
-	//	Devices.Range(func(key, value interface{}) bool {
-	//		device:=value.(*Device)
-	//		for _,channel := range device.Channels {
-	//			if stream.StreamPath == channel.RecordSP {
-	//
-	//			}
-	//		}
-	//	})
-	//})
-	go listenMedia()
-	go queryCatalog(config)
-	s.Start()
-}
-func listenMedia() {
-	networkBuffer := 1048576
-	var rtpPacket rtp.Packet
-	addr, err := net.ResolveUDPAddr("udp", ":"+strconv.Itoa(int(config.MediaPort)))
-	if err != nil {
-		log.Fatalf("udp server ResolveUDPAddr MediaPort:%d error, %v", config.MediaPort, err)
-	}
-	conn, err := net.ListenUDP("udp", addr)
-	if err != nil {
-		log.Fatalf("udp server ListenUDP MediaPort:%d error, %v", config.MediaPort, err)
-	}
-	if err = conn.SetReadBuffer(networkBuffer); err != nil {
-		Printf("udp server video conn set read buffer error, %v", err)
-	}
-	if err = conn.SetWriteBuffer(networkBuffer); err != nil {
-		Printf("udp server video conn set write buffer error, %v", err)
-	}
-	bufUDP := make([]byte, 1048576)
-	Printf("udp server start listen video port[%d]", config.MediaPort)
-	defer Printf("udp server stop listen video port[%d]", config.MediaPort)
-	for n, _, err := conn.ReadFromUDP(bufUDP); err == nil; n, _, err = conn.ReadFromUDP(bufUDP) {
-		ps := bufUDP[:n]
-		if err := rtpPacket.Unmarshal(ps); err != nil {
-			Println("gb28181 decode rtp error:", err)
-		}
-		if publisher := publishers.Get(rtpPacket.SSRC); publisher != nil && publisher.Err() == nil {
-			publisher.PushPS(&rtpPacket)
-		}
+func (c *GB28181Config) OnEvent(event any) {
+	switch event.(type) {
+	case FirstConfig:
+		go c.initRoutes()
+		c.startServer()
 	}
 }
 
-func queryCatalog(config *transaction.Config) {
-	t := time.NewTicker(time.Duration(config.CatalogInterval) * time.Second)
-	for range t.C {
-		Devices.Range(func(key, value interface{}) bool {
-			device := value.(*Device)
-			if time.Since(device.UpdateTime) > time.Duration(config.RegisterValidity)*time.Second {
-				Devices.Delete(key)
-			} else {
-				go device.Query()
-			}
-			return true
-		})
-	}
+func (c *GB28181Config) IsMediaNetworkTCP() bool {
+	return strings.ToLower(c.MediaNetwork) == "tcp"
 }
+
+var conf = &GB28181Config{
+	AutoInvite:     true,
+	PreFetchRecord: false,
+	UdpCacheSize:   0,
+	SipNetwork:     "udp",
+	SipIP:          "",
+	SipPort:        5060,
+	Serial:         "34020000002000000001",
+	Realm:          "3402000000",
+	Username:       "",
+	Password:       "",
+
+	AckTimeout:        10,
+	RegisterValidity:  60,
+	RegisterInterval:  60,
+	HeartbeatInterval: 60,
+	HeartbeatRetry:    3,
+
+	MediaIP:          "",
+	MediaPort:        58200,
+	MediaIdleTimeout: 30,
+	MediaNetwork:     "udp",
+
+	RemoveBanInterval: 600,
+	LogLevel:          "info",
+	// WaitKeyFrame:      true,
+}
+
+var plugin = InstallPlugin(conf)

manscdp.go

@@ -0,0 +1,80 @@
+package gb28181
+
+import (
+	"fmt"
+	"time"
+)
+
+var (
+	// CatalogXML 获取设备列表xml样式
+	CatalogXML = `<?xml version="1.0"?><Query>
+<CmdType>Catalog</CmdType>
+<SN>%d</SN>
+<DeviceID>%s</DeviceID>
+</Query>
+`
+	// RecordInfoXML 获取录像文件列表xml样式
+	RecordInfoXML = `<?xml version="1.0"?>
+<Query>
+<CmdType>RecordInfo</CmdType>
+<SN>%d</SN>
+<DeviceID>%s</DeviceID>
+<StartTime>%s</StartTime>
+<EndTime>%s</EndTime>
+<Secrecy>0</Secrecy>
+<Type>all</Type>
+</Query>
+`
+	// DeviceInfoXML 查询设备详情xml样式
+	DeviceInfoXML = `<?xml version="1.0"?>
+<Query>
+<CmdType>DeviceInfo</CmdType>
+<SN>%d</SN>
+<DeviceID>%s</DeviceID>
+</Query>
+`
+	// DevicePositionXML 订阅设备位置
+	DevicePositionXML = `<?xml version="1.0"?>
+<Query>
+<CmdType>MobilePosition</CmdType>
+<SN>%d</SN>
+<DeviceID>%s</DeviceID>
+<Interval>%d</Interval>
+</Query>`
+)
+
+// BuildDeviceInfoXML 获取设备详情指令
+func BuildDeviceInfoXML(sn int, id string) string {
+	return fmt.Sprintf(DeviceInfoXML, sn, id)
+}
+
+// BuildCatalogXML 获取NVR下设备列表指令
+func BuildCatalogXML(sn int, id string) string {
+	return fmt.Sprintf(CatalogXML, sn, id)
+}
+
+// BuildRecordInfoXML 获取录像文件列表指令
+func BuildRecordInfoXML(sn int, id string, start, end int64) string {
+	return fmt.Sprintf(RecordInfoXML, sn, id, time.Unix(start, 0).Format("2006-01-02T15:04:05"), time.Unix(end, 0).Format("2006-01-02T15:04:05"))
+}
+
+// BuildDevicePositionXML 订阅设备位置
+func BuildDevicePositionXML(sn int, id string, interval int) string {
+	return fmt.Sprintf(DevicePositionXML, sn, id, interval)
+}
+
+// AlarmResponseXML alarm response xml样式
+var (
+	AlarmResponseXML = `<?xml version="1.0"?>
+<Response>
+<CmdType>Alarm</CmdType>
+<SN>17430</SN>
+<DeviceID>%s</DeviceID>
+</Response>
+`
+)
+
+// BuildRecordInfoXML 获取录像文件列表指令
+func BuildAlarmResponseXML(id string) string {
+	return fmt.Sprintf(AlarmResponseXML, id)
+}

publisher.go

@@ -1,78 +1,177 @@
 package gb28181
 
 import (
-	"github.com/Monibuca/engine/v3"
-	"github.com/Monibuca/plugin-gb28181/v3/utils"
-	. "github.com/Monibuca/utils/v3"
-	"github.com/pion/rtp"
+	"encoding/binary"
+	"os"
+	"sync/atomic"
+	"time"
+
+	"github.com/ghettovoice/gosip/sip"
+	"github.com/pion/rtp/v2"
+	"go.uber.org/zap"
+	. "m7s.live/engine/v4"
+	. "m7s.live/engine/v4/track"
+	"m7s.live/plugin/gb28181/v4/utils"
 )
 
-type Publisher struct {
-	*engine.Stream
-	parser    utils.DecPSPackage
-	pushVideo func(uint32, uint32, []byte)
-	pushAudio func(uint32, []byte)
-	lastSeq   uint16
+type GBPublisher struct {
+	Publisher
+	InviteOptions
+	channel     *Channel
+	inviteRes   *sip.Response
+	parser      *utils.DecPSPackage
+	lastSeq     uint16
+	udpCache    *utils.PriorityQueueRtp
+	dumpFile    *os.File
+	lastReceive time.Time
 }
 
-func (p *Publisher) PushVideo(ts uint32, cts uint32, payload []byte) {
-	p.pushVideo(ts, cts, payload)
-}
-func (p *Publisher) PushAudio(ts uint32, payload []byte) {
-	p.pushAudio(ts, payload)
-}
-func (p *Publisher) Publish() (result bool) {
-	if result = p.Stream.Publish(); result {
-		p.pushVideo = func(ts uint32, cts uint32, payload []byte) {
-			var vt *engine.VideoTrack
-			switch p.parser.VideoStreamType {
-			case utils.StreamTypeH264:
-				vt = p.Stream.NewVideoTrack(7)
-			case utils.StreamTypeH265:
-				vt = p.Stream.NewVideoTrack(12)
-			default:
-				return
+func (p *GBPublisher) OnEvent(event any) {
+	switch v := event.(type) {
+	case IPublisher:
+		if p.channel == nil {
+			// rplay dump file
+			p.Publisher.OnEvent(v)
+		} else {
+			if p.IsLive() {
+				p.Type = "GB28181 Live"
+				p.channel.LivePublisher = p
+			} else {
+				p.Type = "GB28181 Playback"
+				p.channel.RecordPublisher = p
+			}
+			conf.publishers.Add(p.SSRC, p)
+			if err := error(nil); p.dump != "" {
+				if p.dumpFile, err = os.OpenFile(p.dump, os.O_WRONLY|os.O_CREATE, 0644); err != nil {
+					p.Error("open dump file failed", zap.Error(err))
+				}
+			}
+			if p.Equal(v) { //第一任
+
+			} else {
+				//删除前任
+				conf.publishers.Delete(v.(*GBPublisher).SSRC)
+				p.Publisher.OnEvent(v)
 			}
-			vt.PushAnnexB(ts, cts, payload)
-			p.pushVideo = vt.PushAnnexB
 		}
-		p.pushAudio = func(ts uint32, payload []byte) {
-			switch p.parser.AudioStreamType {
-			case utils.G711A:
-				at := p.Stream.NewAudioTrack(7)
-				at.SoundRate = 8000
-				at.SoundSize = 16
-				at.Channels = 1
-				at.ExtraData = []byte{(at.CodecID << 4) | (1 << 1)}
-				at.PushRaw(ts, payload)
-				p.pushAudio = at.PushRaw
-				// case utils.G711U:
-				// 	at := p.Stream.NewAudioTrack(8)
-				// 	at.SoundRate = 8000
-				// 	at.SoundSize = 16
-				// 	asc := at.CodecID << 4
-				// 	asc = asc + 1<<1
-				// 	at.ExtraData = []byte{asc}
-				// 	at.PushRaw(pack)
-				// 	p.pushAudio = at.PushRaw
-			}
+	case SEwaitPublish:
+		//掉线自动重新拉流
+		if p.IsLive() {
+			atomic.StoreInt32(&p.channel.state, 0)
+			p.channel.LivePublisher = nil
+			go p.channel.Invite(InviteOptions{})
+		}
+	case SEclose, SEKick:
+		if p.IsLive() {
+			p.channel.LivePublisher = nil
+		} else {
+			p.channel.RecordPublisher = nil
+		}
+		p.Publisher.OnEvent(v)
+		conf.publishers.Delete(p.SSRC)
+		if p.dumpFile != nil {
+			p.dumpFile.Close()
+		}
+		p.Bye()
+	default:
+		p.Publisher.OnEvent(v)
+	}
+}
+
+func (p *GBPublisher) Bye() int {
+	res := p.inviteRes
+	if res == nil {
+		return 404
+	}
+	defer p.Stop()
+	defer atomic.StoreInt32(&p.channel.state, 0)
+	p.inviteRes = nil
+	bye := p.channel.CreateRequst(sip.BYE)
+	from, _ := (*res).From()
+	to, _ := (*res).To()
+	callId, _ := (*res).CallID()
+	bye.ReplaceHeaders(from.Name(), []sip.Header{from})
+	bye.ReplaceHeaders(to.Name(), []sip.Header{to})
+	bye.ReplaceHeaders(callId.Name(), []sip.Header{callId})
+	resp, err := p.channel.device.SipRequestForResponse(bye)
+	if err != nil {
+		p.Error("Bye", zap.Error(err))
+		return 500
+	}
+	return int(resp.StatusCode())
+}
+
+func (p *GBPublisher) PushVideo(pts uint32, dts uint32, payload []byte) {
+	if p.VideoTrack == nil {
+		switch p.parser.VideoStreamType {
+		case utils.StreamTypeH264:
+			p.VideoTrack = NewH264(p.Publisher.Stream)
+		case utils.StreamTypeH265:
+			p.VideoTrack = NewH265(p.Publisher.Stream)
+		default:
+			return
 		}
 	}
-	return
+	p.VideoTrack.WriteAnnexB(pts, dts, payload)
 }
-func (p *Publisher) PushPS(rtp *rtp.Packet) {
+func (p *GBPublisher) PushAudio(ts uint32, payload []byte) {
+	if p.AudioTrack == nil {
+		switch p.parser.AudioStreamType {
+		case utils.G711A:
+			at := NewG711(p.Publisher.Stream, true)
+			at.Audio.SampleRate = 8000
+			at.Audio.SampleSize = 16
+			at.Channels = 1
+			at.AVCCHead = []byte{(byte(at.CodecID) << 4) | (1 << 1)}
+			p.AudioTrack = at
+		case utils.G711A + 1:
+			at := NewG711(p.Publisher.Stream, false)
+			at.Audio.SampleRate = 8000
+			at.Audio.SampleSize = 16
+			at.Channels = 1
+			at.AVCCHead = []byte{(byte(at.CodecID) << 4) | (1 << 1)}
+			p.AudioTrack = at
+		default:
+			return
+		}
+	}
+	p.AudioTrack.WriteAVCC(ts, payload)
+}
+
+func (p *GBPublisher) PushPS(rtp *rtp.Packet) {
+	originRtp := *rtp
+	if conf.UdpCacheSize > 0 && !conf.IsMediaNetworkTCP() {
+		//序号小于第一个包的丢弃,rtp包序号达到65535后会从0开始，所以这里需要判断一下
+		if rtp.SequenceNumber < p.lastSeq && p.lastSeq-rtp.SequenceNumber < utils.MaxRtpDiff {
+			return
+		}
+		p.udpCache.Push(*rtp)
+		rtpTmp, _ := p.udpCache.Pop()
+		rtp = &rtpTmp
+	}
 	ps := rtp.Payload
 	if p.lastSeq != 0 {
 		// rtp序号不连续，丢弃PS
 		if p.lastSeq+1 != rtp.SequenceNumber {
+			if conf.UdpCacheSize > 0 && !conf.IsMediaNetworkTCP() {
+				if p.udpCache.Len() < conf.UdpCacheSize {
+					p.udpCache.Push(*rtp)
+					return
+				} else {
+					p.udpCache.Empty()
+					rtp = &originRtp // 还原rtp包，而不是使用缓存中，避免rtp序号断裂
+				}
+			}
 			p.parser.Reset()
 		}
 	}
 	p.lastSeq = rtp.SequenceNumber
-	p.Update()
-	if len(ps) >= 4 && BigEndian.Uint32(ps) == utils.StartCodePS {
+	if p.parser == nil {
+		p.parser = new(utils.DecPSPackage)
+	}
+	if len(ps) >= 4 && binary.BigEndian.Uint32(ps) == utils.StartCodePS {
 		if p.parser.Len() > 0 {
-			p.parser.Uint32()
+			p.parser.Skip(4)
 			p.parser.Read(rtp.Timestamp, p)
 			p.parser.Reset()
 		}

restful.go

@@ -0,0 +1,143 @@
+package gb28181
+
+import (
+	"net/http"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/pion/rtp/v2"
+	"m7s.live/engine/v4/util"
+)
+
+func (conf *GB28181Config) API_list(w http.ResponseWriter, r *http.Request) {
+	util.ReturnJson(func() (list []*Device) {
+		Devices.Range(func(key, value interface{}) bool {
+			device := value.(*Device)
+			if time.Since(device.UpdateTime) > time.Duration(conf.RegisterValidity)*time.Second {
+				Devices.Delete(key)
+			} else {
+				list = append(list, device)
+			}
+			return true
+		})
+		return
+	}, time.Second*5, w, r)
+}
+
+func (conf *GB28181Config) API_records(w http.ResponseWriter, r *http.Request) {
+	id := r.URL.Query().Get("id")
+	channel := r.URL.Query().Get("channel")
+	startTime := r.URL.Query().Get("startTime")
+	endTime := r.URL.Query().Get("endTime")
+	if c := FindChannel(id, channel); c != nil {
+		w.WriteHeader(c.QueryRecord(startTime, endTime))
+	} else {
+		w.WriteHeader(404)
+	}
+}
+
+func (conf *GB28181Config) API_control(w http.ResponseWriter, r *http.Request) {
+	id := r.URL.Query().Get("id")
+	channel := r.URL.Query().Get("channel")
+	ptzcmd := r.URL.Query().Get("ptzcmd")
+	if c := FindChannel(id, channel); c != nil {
+		w.WriteHeader(c.Control(ptzcmd))
+	} else {
+		w.WriteHeader(404)
+	}
+}
+
+func (conf *GB28181Config) API_invite(w http.ResponseWriter, r *http.Request) {
+	query := r.URL.Query()
+	id := query.Get("id")
+	channel := query.Get("channel")
+	port, _ := strconv.Atoi(query.Get("mediaPort"))
+	opt := InviteOptions{
+		query.Get("startTime"),
+		query.Get("endTime"),
+		query.Get("dump"),
+		"", 0, uint16(port),
+	}
+	if c := FindChannel(id, channel); c != nil {
+		if opt.IsLive() && c.LivePublisher != nil {
+			w.WriteHeader(304) //直播流已存在
+		} else {
+			w.WriteHeader(c.Invite(opt))
+		}
+	} else {
+		w.WriteHeader(404)
+	}
+}
+
+func (conf *GB28181Config) API_replay(w http.ResponseWriter, r *http.Request) {
+	dump := r.URL.Query().Get("dump")
+	if dump == "" {
+		dump = conf.DumpPath
+	}
+	f, err := os.OpenFile(dump, os.O_RDONLY, 0644)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+	} else {
+		go func() {
+			defer f.Close()
+			streamPath := dump
+			if strings.HasPrefix(dump, "/") {
+				streamPath = "replay" + dump
+			} else {
+				streamPath = "replay/" + dump
+			}
+			var pub GBPublisher
+			var rtpPacket rtp.Packet
+			if err = plugin.Publish(streamPath, &pub); err == nil {
+				for l := make([]byte, 6); !pub.IsClosed(); time.Sleep(time.Millisecond * time.Duration(util.ReadBE[uint16](l[4:]))) {
+					_, err = f.Read(l)
+					if err != nil {
+						return
+					}
+					payload := make([]byte, util.ReadBE[int](l[:4]))
+					_, err = f.Read(payload)
+					if err != nil {
+						return
+					}
+					rtpPacket.Unmarshal(payload)
+					pub.PushPS(&rtpPacket)
+				}
+			}
+		}()
+	}
+}
+
+func (conf *GB28181Config) API_bye(w http.ResponseWriter, r *http.Request) {
+	// CORS(w, r)
+	id := r.URL.Query().Get("id")
+	channel := r.URL.Query().Get("channel")
+	live := r.URL.Query().Get("live")
+	if c := FindChannel(id, channel); c != nil {
+		w.WriteHeader(c.Bye(live != "false"))
+	} else {
+		w.WriteHeader(404)
+	}
+}
+
+func (conf *GB28181Config) API_position(w http.ResponseWriter, r *http.Request) {
+	//CORS(w, r)
+	query := r.URL.Query()
+	//设备id
+	id := query.Get("id")
+	//订阅周期(单位：秒)
+	expires := query.Get("expires")
+	//订阅间隔（单位：秒）
+	interval := query.Get("interval")
+
+	expiresInt, _ := strconv.Atoi(expires)
+	intervalInt, _ := strconv.Atoi(interval)
+
+	if v, ok := Devices.Load(id); ok {
+		d := v.(*Device)
+		w.WriteHeader(d.MobilePositionSubscribe(id, expiresInt, intervalInt))
+	} else {
+		w.WriteHeader(404)
+	}
+}

server.go

@@ -0,0 +1,198 @@
+package gb28181
+
+import (
+	"bufio"
+	"encoding/binary"
+	"fmt"
+	"io"
+	"net"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/logrusorgru/aurora"
+	"github.com/pion/rtp/v2"
+	"go.uber.org/zap"
+	"m7s.live/engine/v4/util"
+	"m7s.live/plugin/gb28181/v4/utils"
+
+	"github.com/ghettovoice/gosip"
+	"github.com/ghettovoice/gosip/log"
+	"github.com/ghettovoice/gosip/sip"
+)
+
+var srv gosip.Server
+
+type Server struct {
+	Ignores    map[string]struct{}
+	publishers util.Map[uint32, *GBPublisher]
+}
+
+const MaxRegisterCount = 3
+
+func FindChannel(deviceId string, channelId string) (c *Channel) {
+	if v, ok := Devices.Load(deviceId); ok {
+		d := v.(*Device)
+		d.channelMutex.RLock()
+		c = d.channelMap[channelId]
+		d.channelMutex.RUnlock()
+	}
+	return
+}
+
+var levelMap = map[string]log.Level{
+	"trace": log.TraceLevel,
+	"debug": log.DebugLevel,
+	"info":  log.InfoLevel,
+	"warn":  log.WarnLevel,
+	"error": log.ErrorLevel,
+	"fatal": log.FatalLevel,
+	"panic": log.PanicLevel,
+}
+
+func (config *GB28181Config) startServer() {
+	config.publishers.Init()
+	addr := "0.0.0.0:" + strconv.Itoa(int(config.SipPort))
+
+	logger := utils.NewZapLogger(plugin.Logger, "GB SIP Server", nil)
+	logger.SetLevel(levelMap[config.LogLevel])
+	// logger := log.NewDefaultLogrusLogger().WithPrefix("GB SIP Server")
+	srvConf := gosip.ServerConfig{}
+	if config.SipIP != "" {
+		srvConf.Host = config.SipIP
+	}
+	srv = gosip.NewServer(srvConf, nil, nil, logger)
+	srv.OnRequest(sip.REGISTER, config.OnRegister)
+	srv.OnRequest(sip.MESSAGE, config.OnMessage)
+	srv.OnRequest(sip.NOTIFY, config.OnNotify)
+	srv.OnRequest(sip.BYE, config.onBye)
+	err := srv.Listen(strings.ToLower(config.SipNetwork), addr)
+	if err != nil {
+		plugin.Logger.Error("gb28181 server listen", zap.Error(err))
+	} else {
+		plugin.Info(fmt.Sprint(aurora.Green("Server gb28181 start at"), aurora.BrightBlue(addr)))
+	}
+
+	go config.startMediaServer()
+
+	if config.Username != "" || config.Password != "" {
+		go removeBanDevice(config)
+	}
+}
+
+func (config *GB28181Config) startMediaServer() {
+	if config.MediaNetwork == "tcp" {
+		listenMediaTCP(config)
+	} else {
+		listenMediaUDP(config)
+	}
+}
+
+func processTcpMediaConn(config *GB28181Config, conn net.Conn) {
+	var rtpPacket rtp.Packet
+	reader := bufio.NewReader(conn)
+	lenBuf := make([]byte, 2)
+	defer conn.Close()
+	var err error
+	for err == nil {
+		if _, err = io.ReadFull(reader, lenBuf); err != nil {
+			return
+		}
+		ps := make([]byte, binary.BigEndian.Uint16(lenBuf))
+		if _, err = io.ReadFull(reader, ps); err != nil {
+			return
+		}
+		if err := rtpPacket.Unmarshal(ps); err != nil {
+			plugin.Error("gb28181 decode rtp error:", zap.Error(err))
+		} else if publisher := config.publishers.Get(rtpPacket.SSRC); publisher != nil && publisher.Publisher.Err() == nil {
+			publisher.PushPS(&rtpPacket)
+		}
+	}
+}
+
+func listenMediaTCP(config *GB28181Config) {
+	addr := ":" + strconv.Itoa(int(config.MediaPort))
+	mediaAddr, _ := net.ResolveTCPAddr("tcp", addr)
+	listen, err := net.ListenTCP("tcp", mediaAddr)
+
+	if err != nil {
+		plugin.Error("listen media server tcp err", zap.String("addr", addr), zap.Error(err))
+		return
+	}
+	plugin.Info("Media tcp server start.", zap.Uint16("port", config.MediaPort))
+	defer listen.Close()
+	defer plugin.Info("Media tcp server stop", zap.Uint16("port", config.MediaPort))
+
+	for {
+		conn, err := listen.Accept()
+		if err != nil {
+			plugin.Error("Accept err=", zap.Error(err))
+		}
+		go processTcpMediaConn(config, conn)
+	}
+}
+
+func listenMediaUDP(config *GB28181Config) {
+	var rtpPacket rtp.Packet
+	networkBuffer := 1048576
+
+	addr := ":" + strconv.Itoa(int(config.MediaPort))
+	mediaAddr, _ := net.ResolveUDPAddr("udp", addr)
+	conn, err := net.ListenUDP("udp", mediaAddr)
+
+	if err != nil {
+		plugin.Error("listen media server udp err", zap.String("addr", addr), zap.Error(err))
+		return
+	}
+	bufUDP := make([]byte, networkBuffer)
+	plugin.Info("Media udp server start.", zap.Uint16("port", config.MediaPort))
+	defer plugin.Info("Media udp server stop", zap.Uint16("port", config.MediaPort))
+	dumpLen := make([]byte, 6)
+	for n, _, err := conn.ReadFromUDP(bufUDP); err == nil; n, _, err = conn.ReadFromUDP(bufUDP) {
+		ps := bufUDP[:n]
+		if err := rtpPacket.Unmarshal(ps); err != nil {
+			plugin.Error("Decode rtp error:", zap.Error(err))
+		}
+		if publisher := config.publishers.Get(rtpPacket.SSRC); publisher != nil && publisher.Publisher.Err() == nil {
+			if publisher.dumpFile != nil {
+				util.PutBE(dumpLen[:4], n)
+				if publisher.lastReceive.IsZero() {
+					util.PutBE(dumpLen[4:], 0)
+				} else {
+					util.PutBE(dumpLen[4:], uint16(time.Since(publisher.lastReceive).Milliseconds()))
+				}
+				publisher.lastReceive = time.Now()
+				publisher.dumpFile.Write(dumpLen)
+				publisher.dumpFile.Write(ps)
+			}
+			publisher.PushPS(&rtpPacket)
+		}
+	}
+}
+
+// func queryCatalog(config *transaction.Config) {
+// 	t := time.NewTicker(time.Duration(config.CatalogInterval) * time.Second)
+// 	for range t.C {
+// 		Devices.Range(func(key, value interface{}) bool {
+// 			device := value.(*Device)
+// 			if time.Since(device.UpdateTime) > time.Duration(config.RegisterValidity)*time.Second {
+// 				Devices.Delete(key)
+// 			} else if device.Channels != nil {
+// 				go device.Catalog()
+// 			}
+// 			return true
+// 		})
+// 	}
+// }
+
+func removeBanDevice(config *GB28181Config) {
+	t := time.NewTicker(time.Duration(config.RemoveBanInterval) * time.Second)
+	for range t.C {
+		DeviceRegisterCount.Range(func(key, value interface{}) bool {
+			if value.(int) > MaxRegisterCount {
+				DeviceRegisterCount.Delete(key)
+			}
+			return true
+		})
+	}
+}

sip/README.md

@@ -1,120 +0,0 @@
-
-#### SIP消息
-
-```
-SIP-message    =  Request / Response
-Request        =  Request-Line
-                  *( message-header )
-                  CRLF
-                  [ message-body ]
-```
-
-#### SIP消息头域
-
-```
-message-header  =  (Accept
-                /  Accept-Encoding
-                /  Accept-Language
-                /  Alert-Info
-                /  Allow
-                /  Authentication-Info
-                /  Authorization
-                /  Call-ID
-                /  Call-Info
-                /  Contact
-                /  Content-Disposition
-                /  Content-Encoding
-                /  Content-Language
-                /  Content-Length
-                /  Content-Type
-                /  CSeq
-                /  Date
-                /  Error-Info
-                /  Expires
-                /  From
-                /  In-Reply-To
-                /  Max-Forwards
-                /  MIME-Version
-                /  Min-Expires
-                /  Organization
-                /  Priority
-                /  Proxy-Authenticate
-                /  Proxy-Authorization
-                /  Proxy-Require
-                /  Record-Route
-                /  Reply-To
-                /  Require
-                /  Retry-After
-                /  Route
-                /  Server
-                /  Subject
-                /  Supported
-                /  Timestamp
-                /  To
-                /  Unsupported
-                /  User-Agent
-                /  Via
-                /  Warning
-                /  WWW-Authenticate
-                /  extension-header) CRLF
-```
-
-
-#### SIP 响应状态码
-
-```
-Informational  =  "100"  ;  Trying
-              /   "180"  ;  Ringing
-              /   "181"  ;  Call Is Being Forwarded
-              /   "182"  ;  Queued
-              /   "183"  ;  Session Progress
-Success  =  "200"  ;  OK
-
-Redirection  =  "300"  ;  Multiple Choices
-            /   "301"  ;  Moved Permanently
-            /   "302"  ;  Moved Temporarily
-            /   "305"  ;  Use Proxy
-            /   "380"  ;  Alternative Service
-
-Client-Error  =  "400"  ;  Bad Request
-             /   "401"  ;  Unauthorized
-             /   "402"  ;  Payment Required
-             /   "403"  ;  Forbidden
-             /   "404"  ;  Not Found
-             /   "405"  ;  Method Not Allowed
-             /   "406"  ;  Not Acceptable
-             /   "407"  ;  Proxy Authentication Required
-             /   "408"  ;  Request Timeout
-             /   "410"  ;  Gone
-             /   "413"  ;  Request Entity Too Large
-             /   "414"  ;  Request-URI Too Large
-             /   "415"  ;  Unsupported Media Type
-             /   "416"  ;  Unsupported URI Scheme
-             /   "420"  ;  Bad Extension
-             /   "421"  ;  Extension Required
-             /   "423"  ;  Interval Too Brief
-             /   "480"  ;  Temporarily not available
-             /   "481"  ;  Call Leg/Transaction Does Not Exist
-             /   "482"  ;  Loop Detected
-             /   "483"  ;  Too Many Hops
-             /   "484"  ;  Address Incomplete
-             /   "485"  ;  Ambiguous
-             /   "486"  ;  Busy Here
-             /   "487"  ;  Request Terminated
-             /   "488"  ;  Not Acceptable Here
-             /   "491"  ;  Request Pending
-             /   "493"  ;  Undecipherable
-
-Server-Error  =  "500"  ;  Internal Server Error
-             /   "501"  ;  Not Implemented
-             /   "502"  ;  Bad Gateway
-             /   "503"  ;  Service Unavailable
-             /   "504"  ;  Server Time-out
-             /   "505"  ;  SIP Version not supported
-             /   "513"  ;  Message Too Large
-Global-Failure  =  "600"  ;  Busy Everywhere
-               /   "603"  ;  Decline
-               /   "604"  ;  Does not exist anywhere
-               /   "606"  ;  Not Acceptable
-
-```

sip/body.go

@@ -1,18 +0,0 @@
-package sip
-
-//sip message body
-//xml解析的字段
-const (
-	MESSAGE_CATALOG                  = "Catalog"
-	MESSAGE_DEVICE_INFO              = "DeviceInfo"
-	MESSAGE_BROADCAST                = "Broadcast"
-	MESSAGE_DEVICE_STATUS            = "DeviceStatus"
-	MESSAGE_KEEP_ALIVE               = "Keepalive"
-	MESSAGE_MOBILE_POSITION          = "MobilePosition"
-	MESSAGE_MOBILE_POSITION_INTERVAL = "Interval"
-
-	ELEMENT_DEVICE_ID   = "DeviceID"
-	ELEMENT_DEVICE_LIST = "DeviceList"
-	ELEMENT_NAME        = "Name"
-	ELEMENT_STATUS      = "Status"
-)

sip/demo.go

@@ -1,56 +0,0 @@
-package sip
-
-import "fmt"
-
-func DemoMessage() {
-	registerStr := `REGISTER sip:34020000002000000001@3402000000 SIP/2.0
-Via: SIP/2.0/UDP 192.168.1.64:5060;rport;branch=z9hG4bK385701375
-From: <sip:34020000001320000001@3402000000>;tag=1840661473
-To: <sip:34020000001320000001@3402000000>
-Call-ID: 418133739
-CSeq: 1 REGISTER
-Contact: <sip:34020000001320000001@192.168.1.64:5060>
-Max-Forwards: 70
-User-Agent: IP Camera
-Expires: 3600
-Content-Length: 0`
-
-	fmt.Println("input:")
-	fmt.Println(registerStr)
-	msg, err := Decode([]byte(registerStr))
-	if err != nil {
-		fmt.Println("decode message failed:", err.Error())
-		return
-	}
-	out, err := Encode(msg)
-	if err != nil {
-		fmt.Println("encode message failed:", err.Error())
-		return
-	}
-	fmt.Println("=====================================")
-	fmt.Println("output:")
-	fmt.Println(string(out))
-}
-
-func DemoVIA() {
-	str1 := "SIP / 2.0 / UDP first.example.com: 4000;ttl=16 ;maddr=224.2.0.1 ;branch=z9hG4bKa7c6a8dlze.1"
-	str2 := "SIP/2.0/UDP 192.168.1.64:5060;rport;received=192.168.1.64;branch=z9hG4bK1000615294"
-
-	var err error
-	v1 := &Via{}
-	err = v1.Parse(str1)
-	if err != nil {
-		fmt.Println("error:", err.Error())
-		return
-	}
-	fmt.Printf("result:%v\n", v1.String())
-
-	v2 := &Via{}
-	err = v2.Parse(str2)
-	if err != nil {
-		fmt.Println("error:", err.Error())
-		return
-	}
-	fmt.Printf("result:%v\n", v2.String())
-
-}

sip/head.go

@@ -1,571 +0,0 @@
-package sip
-
-import (
-	"errors"
-	"fmt"
-	"strconv"
-	"strings"
-)
-
-//换行符号：
-//linux,unix :     \r\n
-//windows    :     \n
-//Mac OS     :     \r
-const (
-	VERSION  = "SIP/2.0"  // sip version
-	CRLF     = "\r\n"     // 0x0D0A
-	CRLFCRLF = "\r\n\r\n" // 0x0D0A0D0A
-
-	//CRLF     = "\n"   // 0x0D
-	//CRLFCRLF = "\n\n" // 0x0D0D
-)
-
-//SIP消息类型：请求or响应
-type Mode int
-
-const (
-	SIP_MESSAGE_REQUEST  Mode = 0
-	SIP_MESSAGE_RESPONSE Mode = 1
-)
-
-//sip request method
-type Method string
-
-const (
-	ACK       Method = "ACK"
-	BYE       Method = "BYE"
-	CANCEL    Method = "CANCEL"
-	INVITE    Method = "INVITE"
-	OPTIONS   Method = "OPTIONS"
-	REGISTER  Method = "REGISTER"
-	NOTIFY    Method = "NOTIFY"
-	SUBSCRIBE Method = "SUBSCRIBE"
-	MESSAGE   Method = "MESSAGE"
-	REFER     Method = "REFER"
-	INFO      Method = "INFO"
-	PRACK     Method = "PRACK"
-	UPDATE    Method = "UPDATE"
-	PUBLISH   Method = "PUBLISH"
-)
-
-//startline
-//MESSAGE sip:34020000001320000001@3402000000 SIP/2.0
-//SIP/2.0 200 OK
-type StartLine struct {
-	raw string //原始内容
-
-	//request line: method uri version
-	Method  Method
-	Uri     URI //Request-URI:请求的服务地址，不能包含空白字符或者控制字符，并且禁止用”<>”括上。
-	Version string
-
-	//status line: version code phrase
-	Code   int //status code
-	phrase string
-}
-
-func (l *StartLine) String() string {
-	if l.Version == "" {
-		l.Version = "SIP/2.0"
-	}
-	var result string
-	if l.Method == "" {
-		result = fmt.Sprintf("%s %d %s", l.Version, l.Code, l.phrase)
-	} else {
-		result = fmt.Sprintf("%s %s %s", l.Method, l.Uri.String(), l.Version)
-	}
-	l.raw = result
-	return l.raw
-}
-
-//To From Referto Contact
-//From: <sip:34020000001320000001@3402000000>;tag=575945878
-//To: <sip:34020000002000000001@3402000000>
-//Contact: <sip:34020000001320000001@27.38.49.149:49243>
-//Contact: <sip:34020000001320000001@192.168.1.64:5060>;expires=0
-type Contact struct {
-	raw string //原始内容
-
-	Nickname string //可以没有
-	Uri      URI    //
-
-	//header params
-	Params map[string]string // include tag/q/expires
-}
-
-func (c *Contact) String() string {
-	sb := strings.Builder{}
-
-	if c.Nickname != "" {
-		sb.WriteByte('"')
-		sb.WriteString(c.Nickname)
-		sb.WriteByte('"')
-		sb.WriteByte(' ')
-	}
-	urlStr := c.Uri.String()
-	if strings.ContainsAny(urlStr, ",?:") {
-		urlStr = fmt.Sprintf("<%s>", urlStr)
-	}
-	sb.WriteString(urlStr)
-
-	if c.Params != nil {
-		for k, v := range c.Params {
-			sb.WriteString(";")
-			sb.WriteString(k)
-			sb.WriteString("=")
-			sb.WriteString(v)
-		}
-	}
-
-	c.raw = sb.String()
-	return c.raw
-}
-
-func (c *Contact) Parse(str string) (err error) {
-	c.raw = str
-
-	if str == "*" {
-		c.Uri.host = "*"
-		return
-	}
-
-	n0 := strings.IndexByte(str, '"')
-	if n0 != -1 {
-		str = str[n0+1:]
-		n1 := strings.IndexByte(str, '"')
-		if n1 == -1 {
-			return errors.New("parse nickname failed")
-		}
-		c.Nickname = str[:n1]
-		str = strings.TrimSpace(str[n1+1:])
-	}
-
-	if len(str) == 0 {
-		return
-	}
-
-	var uriDone = false
-	if strings.ContainsAny(str, "<>") {
-		n2 := strings.IndexByte(str, '<')
-		n3 := strings.IndexByte(str, '>')
-		if n2 == -1 || n3 == -1 {
-			err = errors.New("parse contact-uri failed")
-			return
-		}
-		c.Uri, err = parseURI(str[n2+1 : n3])
-		if err != nil {
-			return
-		}
-		uriDone = true
-		str = strings.TrimSpace(str[n3+1:])
-	}
-
-	if len(str) == 0 {
-		return
-	}
-
-	str = strings.Trim(str, ";")
-	arr1 := strings.Split(str, ";")
-	for idx, one := range arr1 {
-		//如果上面没有通过<>解析出来uri，则用分号split的第一个元素，就是uri字符串
-		if !uriDone && idx == 0 {
-			c.Uri, err = parseURI(one)
-			if err != nil {
-				return
-			}
-
-			continue
-		}
-		if c.Params == nil {
-			c.Params = make(map[string]string)
-		}
-		arr2 := strings.Split(one, "=")
-		k, v := arr2[0], arr2[1]
-		c.Params[k] = v
-	}
-
-	return
-}
-
-//Via: SIP/2.0/UDP 192.168.1.64:5060;rport=49243;received=27.38.49.149;branch=z9hG4bK879576192
-//Params：
-//Received : IPv4address / IPv6address
-//RPort    : 0-not found, -1-no-value, other-value
-//Branch   : branch参数的值必须用magic cookie "z9hG4bK" 作为开头
-
-/*
-Via               =  ( "Via" / "v" ) HCOLON via-parm *(COMMA via-parm)
-via-parm          =  sent-protocol LWS sent-by *( SEMI via-params )
-via-params        =  via-ttl / via-maddr
-                     / via-received / via-branch
-                     / via-extension
-via-ttl           =  "ttl" EQUAL ttl
-via-maddr         =  "maddr" EQUAL host
-via-received      =  "received" EQUAL (IPv4address / IPv6address)
-via-branch        =  "branch" EQUAL token
-via-extension     =  generic-param
-sent-protocol     =  protocol-name SLASH protocol-version
-                     SLASH transport
-protocol-name     =  "SIP" / token
-protocol-version  =  token
-transport         =  "UDP" / "TCP" / "TLS" / "SCTP"
-                     / other-transport
-sent-by           =  host [ COLON port ]
-ttl               =  1*3DIGIT ; 0 to 255
-*/
-type Via struct {
-	raw       string // 原始内容
-	Version   string // sip version: default to  SIP/2.0
-	Transport string // UDP,TCP ,TLS , SCTP
-	Host      string // sent-by : host:port
-	Port      string //
-	//header params
-	Params map[string]string // include branch/rport/received/ttl/maddr
-}
-
-func (v *Via) GetBranch() string {
-	return v.Params["branch"]
-}
-
-func (v *Via) GetSendBy() string {
-	var host, port string
-
-	sb := strings.Builder{}
-	received := v.Params["received"]
-	rport := v.Params["rport"]
-
-	if received != "" {
-		host = received
-	} else {
-		host = v.Host
-	}
-
-	if rport != "" && rport != "0" && rport != "-1" {
-		port = rport
-	} else if v.Port != "" {
-		port = v.Port
-	} else {
-		if strings.ToUpper(v.Transport) == "UDP" {
-			port = "5060"
-		} else {
-			port = "5061"
-		}
-	}
-
-	sb.WriteString(host)
-	sb.WriteString(":")
-	sb.WriteString(port)
-
-	return sb.String()
-}
-func (v *Via) String() string {
-	sb := strings.Builder{}
-	if v.Version == "" {
-		v.Version = "SIP/2.0"
-	}
-
-	if v.Transport == "" {
-		v.Transport = "UDP"
-	}
-
-	sb.WriteString(v.Version)
-	sb.WriteString("/")
-	sb.WriteString(v.Transport)
-	sb.WriteString(" ")
-	sb.WriteString(v.Host)
-	if v.Port != "" {
-		sb.WriteString(":")
-		sb.WriteString(v.Port)
-	}
-
-	if v.Params != nil {
-		for k, v := range v.Params {
-			sb.WriteString(";")
-			sb.WriteString(k)
-			if v == "-1" {
-				//rport 值为-1的时候，没有值
-				continue
-			}
-			sb.WriteString("=")
-			sb.WriteString(v)
-		}
-	}
-
-	v.raw = sb.String()
-	return v.raw
-}
-
-//注意via允许以下这种添加空白
-//Via: SIP / 2.0 / UDP first.example.com: 4000;ttl=16 ;maddr=224.2.0.1 ;branch=z9hG4bKa7c6a8dlze.1
-//Via: SIP/2.0/UDP 192.168.1.64:5060;rport=5060;received=192.168.1.64;branch=z9hG4bK1000615294
-func (v *Via) Parse(str string) (err error) {
-	v.raw = str
-
-	str = strings.Trim(str, ";")
-	arr1 := strings.Split(str, ";")
-	part1 := strings.TrimSpace(arr1[0]) //SIP / 2.0 / UDP first.example.com: 4000
-
-	v.Host, v.Port = "", ""
-	if n1 := strings.IndexByte(part1, ':'); n1 != -1 {
-		v.Port = strings.TrimSpace(part1[n1+1:])
-		part1 = strings.TrimSpace(part1[:n1])
-	}
-
-	n2 := strings.LastIndexByte(part1, ' ')
-	if n2 == -1 {
-		v.Host = part1 //error?
-	} else {
-		v.Host = strings.TrimSpace(part1[n2+1:])
-
-		//解析protocol、version和transport，SIP / 2.0 / UDP
-		part2 := part1[:n2]
-		arr2 := strings.Split(part2, "/")
-		if len(arr2) != 3 {
-			err = errors.New("parse contait part1.1 failed:" + part2)
-			return
-		}
-		v.Version = fmt.Sprintf("%s/%s", strings.TrimSpace(arr2[0]), strings.TrimSpace(arr2[1]))
-		v.Transport = strings.TrimSpace(arr2[2])
-	}
-
-	//必须有参数
-	v.Params = make(map[string]string)
-	for i, one := range arr1 {
-		if i == 0 {
-			//arr[0]已经处理
-			continue
-		}
-		one = strings.TrimSpace(one)
-		arr2 := strings.Split(one, "=")
-		//rport 这个参数可能没有 value。 -1:no-value, other-value
-		if len(arr2) == 1 {
-			if arr2[0] == "rport" {
-				v.Params["rport"] = "-1"
-				continue
-			} else {
-				fmt.Println("invalid param:", one)
-				continue
-			}
-		}
-
-		k, val := arr2[0], arr2[1]
-		v.Params[k] = val
-	}
-
-	return
-}
-
-//CSeq: 101 INVITE
-//CSeq: 2 REGISTER
-type CSeq struct {
-	raw    string //原始内容
-	ID     uint32
-	Method Method
-}
-
-func (c *CSeq) String() string {
-	c.raw = fmt.Sprintf("%d %s", c.ID, c.Method)
-	return c.raw
-}
-
-func (c *CSeq) Parse(str string) error {
-	c.raw = str
-	arr1 := strings.Split(str, " ")
-	n, err := strconv.ParseInt(arr1[0], 10, 64)
-	if err != nil {
-		fmt.Println("parse cseq faield:", str)
-		return err
-	}
-	c.ID = uint32(n)
-	c.Method = Method(arr1[1])
-	return nil
-}
-
-//sip:user:password@domain;uri-parameters?headers
-/*
-RFC3261
-SIP-URI          =  "sip:" [ userinfo ] hostport
-                    uri-parameters [ headers ]
-SIPS-URI         =  "sips:" [ userinfo ] hostport
-                    uri-parameters [ headers ]
-userinfo         =  ( user / telephone-subscriber ) [ ":" password ] "@"
-user             =  1*( unreserved / escaped / user-unreserved )
-user-unreserved  =  "&" / "=" / "+" / "$" / "," / ";" / "?" / "/"
-password         =  *( unreserved / escaped /
-                    "&" / "=" / "+" / "$" / "," )
-hostport         =  host [ ":" port ]
-host             =  hostname / IPv4address / IPv6reference
-hostname         =  *( domainlabel "." ) toplabel [ "." ]
-domainlabel      =  alphanum
-                    / alphanum *( alphanum / "-" ) alphanum
-toplabel         =  ALPHA / ALPHA *( alphanum / "-" ) alphanum
-
-IPv4address    =  1*3DIGIT "." 1*3DIGIT "." 1*3DIGIT "." 1*3DIGIT
-IPv6reference  =  "[" IPv6address "]"
-IPv6address    =  hexpart [ ":" IPv4address ]
-hexpart        =  hexseq / hexseq "::" [ hexseq ] / "::" [ hexseq ]
-hexseq         =  hex4 *( ":" hex4)
-hex4           =  1*4HEXDIG
-port           =  1*DIGIT
-
-uri-parameters    =  *( ";" uri-parameter)
-uri-parameter     =  transport-param / user-param / method-param
-                     / ttl-param / maddr-param / lr-param / other-param
-transport-param   =  "transport="
-                     ( "udp" / "tcp" / "sctp" / "tls"
-                     / other-transport)
-other-transport   =  token
-user-param        =  "user=" ( "phone" / "ip" / other-user)
-other-user        =  token
-method-param      =  "method=" Method
-ttl-param         =  "ttl=" ttl
-maddr-param       =  "maddr=" host
-lr-param          =  "lr"
-other-param       =  pname [ "=" pvalue ]
-pname             =  1*paramchar
-pvalue            =  1*paramchar
-paramchar         =  param-unreserved / unreserved / escaped
-param-unreserved  =  "[" / "]" / "/" / ":" / "&" / "+" / "$"
-
-headers         =  "?" header *( "&" header )
-header          =  hname "=" hvalue
-hname           =  1*( hnv-unreserved / unreserved / escaped )
-hvalue          =  *( hnv-unreserved / unreserved / escaped )
-hnv-unreserved  =  "[" / "]" / "/" / "?" / ":" / "+" / "$"
-*/
-type URI struct {
-	scheme  string            // sip sips
-	host    string            // userinfo@domain  or userinfo@ip:port
-	method  string            // uri和method有关？
-	params  map[string]string // include branch/maddr/received/ttl/rport
-	headers map[string]string // include branch/maddr/received/ttl/rport
-}
-
-func (u *URI) Host() string {
-	return u.host
-}
-func (u *URI) UserInfo() string {
-	return strings.Split(u.host, "@")[0]
-}
-func (u *URI) Domain() string {
-	return strings.Split(u.host, "@")[1]
-}
-func (u *URI) IP() string {
-	t := strings.Split(u.host, "@")
-	if len(t) == 1 {
-		return strings.Split(t[0], ":")[0]
-	}
-	return strings.Split(t[1], ":")[0]
-}
-func (u *URI) Port() string {
-	t := strings.Split(u.host, "@")
-	if len(t) == 1 {
-		return strings.Split(t[0], ":")[1]
-	}
-	return strings.Split(t[1], ":")[1]
-}
-func (u *URI) String() string {
-	if u.scheme == "" {
-		u.scheme = "sip"
-	}
-	sb := strings.Builder{}
-	sb.WriteString(u.scheme)
-	sb.WriteString(":")
-	sb.WriteString(u.host)
-	if u.params != nil {
-		for k, v := range u.params {
-			sb.WriteString(";")
-			sb.WriteString(k)
-			sb.WriteString("=")
-			sb.WriteString(v)
-		}
-	}
-
-	if u.headers != nil {
-		sb.WriteString("?")
-		for k, v := range u.headers {
-			sb.WriteString("&")
-			sb.WriteString(k)
-			sb.WriteString("=")
-			sb.WriteString(v)
-		}
-	}
-
-	return sb.String()
-}
-
-//对于gb28181，request-uri 不带参数
-func NewURI(host string) URI {
-	return URI{
-		scheme: "sip",
-		host:   host,
-	}
-}
-func parseURI(str string) (ret URI, err error) {
-	ret = URI{}
-
-	//解析scheme
-	str = strings.TrimSpace(str)
-	n1 := strings.IndexByte(str, ':')
-	if n1 == -1 {
-		err = errors.New("invalid sheme")
-		return
-	}
-	ret.scheme = str[:n1]
-	str = str[n1+1:]
-	if len(str) == 0 {
-		return
-	}
-
-	//解析host
-	n2 := strings.IndexByte(str, ';')
-	if n2 == -1 {
-		ret.host = str
-		return
-	}
-	ret.host = str[:n2]
-
-	str = str[n2+1:]
-	if len(str) == 0 {
-		return
-	}
-
-	//解析params and headers
-	var paramStr, headerStr = "", ""
-	n3 := strings.IndexByte(str, '?')
-	if n3 == -1 {
-		paramStr = str
-	} else {
-		paramStr = str[:n3]
-		headerStr = str[n3+1:]
-	}
-
-	//k1=v1;k2=v2
-	if paramStr != "" {
-		ret.params = make(map[string]string)
-		paramStr = strings.Trim(paramStr, ";")
-		arr1 := strings.Split(paramStr, ";")
-		for _, one := range arr1 {
-			tmp := strings.Split(one, "=")
-			if len(tmp) == 2 {
-				k, v := tmp[0], tmp[1]
-				ret.params[k] = v
-			} else {
-				ret.params[tmp[0]] = ""
-			}
-		}
-	}
-
-	//k1=v1&k2=v2
-	if headerStr != "" {
-		ret.headers = make(map[string]string)
-		arr2 := strings.Split(paramStr, "&")
-		for _, one := range arr2 {
-			tmp := strings.Split(one, "=")
-			k, v := tmp[0], tmp[1]
-			ret.headers[k] = v
-		}
-	}
-
-	return
-}

sip/head_test.go

@@ -1,114 +0,0 @@
-package sip
-
-import (
-	"fmt"
-	"testing"
-)
-
-func TestContact(t *testing.T) {
-	str1 := "\"Mr.Watson\" <sip:watson@worcester.bell-telephone.com>;q=0.7; expires=3600,\"Mr.Watson\" <mailto:watson@bell-telephone.com>"
-	//str1 := `"Mr.Watson" <sip:watson@worcester.bell-telephone.com>;q=0.7;`
-	c := &Contact{}
-	err := c.Parse(str1)
-	if err != nil {
-		t.Error(err)
-		return
-	}
-	fmt.Println("source:", str1)
-	fmt.Println("result:", c.String())
-}
-
-func TestVia(t *testing.T) {
-	str1 := "SIP / 2.0 / UDP first.example.com: 4000;ttl=16 ;maddr=224.2.0.1 ;branch=z9hG4bKa7c6a8dlze.1"
-	str2 := "SIP/2.0/UDP 192.168.1.64:5060;rport;received=192.168.1.64;branch=z9hG4bK1000615294"
-
-	var err error
-	v1 := &Via{}
-	err = v1.Parse(str1)
-	if err != nil {
-		fmt.Println("error:", err.Error())
-		return
-	}
-	fmt.Printf("source:%v\n", str1)
-	fmt.Printf("result:%v\n", v1.String())
-
-	v2 := &Via{}
-	err = v2.Parse(str2)
-	if err != nil {
-		fmt.Println("error:", err.Error())
-		return
-	}
-	fmt.Printf("source:%v\n", str2)
-	fmt.Printf("result:%v\n", v2.String())
-
-}
-
-func TestMessage1(t *testing.T) {
-	str1 := `REGISTER sip:34020000002000000001@3402000000 SIP/2.0
-Via: SIP/2.0/UDP 192.168.1.64:5060;rport;branch=z9hG4bK385701375
-From: <sip:34020000001320000001@3402000000>;tag=1840661473
-To: <sip:34020000001320000001@3402000000>
-Call-ID: 418133739
-CSeq: 1 REGISTER
-Contact: <sip:34020000001320000001@192.168.1.64:5060>
-Max-Forwards: 70
-User-Agent: IP Camera
-Expires: 3600
-Content-Length: 0`
-
-	fmt.Println("input:")
-	fmt.Println(str1)
-	msg, err := Decode([]byte(str1))
-	if err != nil {
-		fmt.Println("decode message failed:", err.Error())
-		return
-	}
-	out, err := Encode(msg)
-	if err != nil {
-		fmt.Println("encode message failed:", err.Error())
-		return
-	}
-	fmt.Println("=====================================")
-	fmt.Println("output:")
-	fmt.Println(string(out))
-}
-
-func TestMessage2(t *testing.T) {
-	str1 := `SIP/2.0 200 OK
-Via: SIP/2.0/UDP 192.168.1.151:5060;rport=5060;branch=SrsGbB56116414
-From: <sip:34020000002000000001@3402000000>;tag=SrsGbF72006729
-To: <sip:34020000001320000001@3402000000>;tag=416442565
-Call-ID: 202093500940
-CSeq: 101 INVITE
-Contact: <sip:34020000001320000001@192.168.1.64:5060>
-Content-Type: application/sdp
-User-Agent: IP Camera
-Content-Length:   185
-
-v=0
-o=34020000001320000001 1835 1835 IN IP4 192.168.1.64
-s=Play
-c=IN IP4 192.168.1.64
-t=0 0
-m=video 15060 RTP/AVP 96
-a=sendonly
-a=rtpmap:96 PS/90000
-a=filesize:0
-y=0009093131`
-
-	fmt.Println("input:")
-	fmt.Println(str1)
-	msg, err := Decode([]byte(str1))
-	if err != nil {
-		fmt.Println("decode message failed:", err.Error())
-		return
-	}
-	out, err := Encode(msg)
-	if err != nil {
-		fmt.Println("encode message failed:", err.Error())
-		return
-	}
-	fmt.Println("=====================================")
-	fmt.Println("output:")
-	fmt.Println(string(out))
-}

sip/message.go

@@ -1,463 +0,0 @@
-package sip
-
-import (
-	"errors"
-	"fmt"
-	"strconv"
-	"strings"
-
-	"github.com/Monibuca/plugin-gb28181/v3/utils"
-)
-
-//Content-Type: Application/MANSCDP+xml
-//Content-Type: Application/SDP
-//Call-ID: 202081530679
-//Max-Forwards: 70
-//User-Agent: SRS/4.0.32(Leo)
-//Subject: 34020000001320000001:0009093128,34020000002000000001:0
-//Content-Length: 164
-
-type Message struct {
-	Mode Mode //0:REQUEST, 1:RESPONSE
-
-	StartLine     *StartLine
-	Via           *Via     //Via
-	From          *Contact //From
-	To            *Contact //To
-	CallID        string   //Call-ID
-	CSeq          *CSeq    //CSeq
-	Contact       *Contact //Contact
-	Authorization string   //Authorization
-	MaxForwards   int      //Max-Forwards
-	UserAgent     string   //User-Agent
-	Subject       string   //Subject
-	ContentType   string   //Content-Type
-	Expires       int      //Expires
-	ContentLength int      //Content-Length
-	Route         *Contact
-	Body          string
-	Addr          string
-}
-
-func (m *Message) BuildResponse(code int) *Message {
-	response := Message{
-		Mode:        SIP_MESSAGE_RESPONSE,
-		From:        m.From,
-		To:          m.To,
-		CallID:      m.CallID,
-		CSeq:        m.CSeq,
-		Via:         m.Via,
-		MaxForwards: m.MaxForwards,
-		StartLine: &StartLine{
-			Code: code,
-		},
-	}
-	return &response
-}
-
-//z9hG4bK + 10个随机数字
-func randBranch() string {
-	return fmt.Sprintf("z9hG4bK%s", utils.RandNumString(8))
-}
-
-func BuildMessageRequest(method Method, transport, sipSerial, sipRealm, username, srcIP string, srcPort uint16, expires, cseq int, body string) *Message {
-	server := fmt.Sprintf("%s@%s", sipSerial, sipRealm)
-	client := fmt.Sprintf("%s@%s", username, sipRealm)
-
-	msg := &Message{
-		Mode:          SIP_MESSAGE_REQUEST,
-		MaxForwards:   70,
-		UserAgent:     "IPC",
-		Expires:       expires,
-		ContentLength: 0,
-	}
-	msg.StartLine = &StartLine{
-		Method: method,
-		Uri:    NewURI(server),
-	}
-	msg.Via = &Via{
-		Transport: transport,
-		Host:      client,
-	}
-	msg.Via.Params = map[string]string{
-		"branch": randBranch(),
-		"rport":  "-1", //only key,no-value
-	}
-	msg.From = &Contact{
-		Uri:    NewURI(client),
-		Params: nil,
-	}
-	msg.From.Params = map[string]string{
-		"tag": utils.RandNumString(10),
-	}
-	msg.To = &Contact{
-		Uri: NewURI(client),
-	}
-	msg.CallID = utils.RandNumString(8)
-	msg.CSeq = &CSeq{
-		ID:     uint32(cseq),
-		Method: method,
-	}
-
-	msg.Contact = &Contact{
-		Uri: NewURI(fmt.Sprintf("%s@%s:%d", username, srcIP, srcPort)),
-	}
-	if len(body) > 0 {
-		msg.ContentLength = len(body)
-		msg.Body = body
-	}
-	return msg
-}
-
-func (m *Message) GetMode() Mode {
-	return m.Mode
-}
-
-func (m *Message) IsRequest() bool {
-	return m.Mode == SIP_MESSAGE_REQUEST
-}
-
-func (m *Message) IsResponse() bool {
-	return m.Mode == SIP_MESSAGE_RESPONSE
-}
-
-func (m *Message) GetMethod() Method {
-	if m.CSeq == nil {
-		b, _ := Encode(m)
-		println(string(b))
-		return MESSAGE
-	}
-	return m.CSeq.Method
-}
-
-//此消息是否使用可靠传输
-func (m *Message) IsReliable() bool {
-	protocol := strings.ToUpper(m.Via.Transport)
-	return "TCP" == protocol || "TLS" == protocol || "SCTP" == protocol
-}
-
-//response code
-func (m *Message) GetStatusCode() int {
-	return m.StartLine.Code
-}
-
-//response code and reason
-func (m *Message) GetReason() string {
-	return DumpError(m.StartLine.Code)
-}
-
-func (m *Message) GetBranch() string {
-	if m.Via == nil {
-		panic("invalid via")
-	}
-	if m.Via.Params == nil {
-		panic("invalid via params")
-	}
-
-	b, ok := m.Via.Params["branch"]
-	if !ok {
-		panic("invalid via paramas branch")
-	}
-
-	return b
-}
-
-//构建响应消息的时候，会使用请求消息的 source 和 destination
-//请求消息的source，格式： host:port
-func (m *Message) Source() string {
-	if m.Mode == SIP_MESSAGE_RESPONSE {
-		fmt.Println("only for request message")
-		return ""
-	}
-
-	if m.Via == nil {
-		fmt.Println("invalid request message")
-		return ""
-	}
-
-	var (
-		host, port string
-		via        = m.Via
-	)
-
-	if received, ok := via.Params["received"]; ok && received != "" {
-		host = received
-	} else {
-		host = via.Host
-	}
-
-	if rport, ok := via.Params["rport"]; ok && rport != "-1" && rport != "0" && rport != "" {
-		port = rport
-	} else if via.Port != "" {
-		port = via.Port
-	} else {
-		//如果port为空，则上层构建消息的时候，根据sip服务的默认端口来选择
-	}
-	return fmt.Sprintf("%v:%v", host, port)
-}
-
-//目标地址：这个应该是用于通过route头域实现proxy这样的功能，暂时不支持
-func (m *Message) Destination() string {
-	//TODO:
-	return ""
-}
-
-//=======================================================================================================
-
-func Decode(data []byte) (msg *Message, err error) {
-	msg = &Message{}
-
-	content := string(data)
-	content = strings.Trim(content, CRLFCRLF)
-	msgArr := strings.Split(content, CRLFCRLF)
-	//第一部分：header
-	//第二部分：body
-	if len(msgArr) == 0 {
-		fmt.Println("invalid sip message:", data)
-		err = errors.New("invalid sip message")
-		return
-	}
-
-	headStr := strings.TrimSpace(msgArr[0])
-	if msgArrLen := len(msgArr); msgArrLen > 1 {
-		for i := 1; i < msgArrLen; i++ {
-			msg.Body += strings.TrimSpace(msgArr[i])
-		}
-	}
-
-	headStr = strings.Trim(headStr, CRLF)
-	headArr := strings.Split(headStr, CRLF)
-	for i, line := range headArr {
-		//fmt.Printf("%02d --- %s ---- %d\n", i, line, len(line))
-		if i == 0 {
-			firstline := strings.Trim(line, " ")
-			tmp := strings.Split(firstline, " ")
-			//if len(tmp) != 3 {
-			//	fmt.Println("parse first line failed:", firstline)
-			//	err = errors.New("invalid first line")
-			//	return
-			//}
-
-			if strings.HasPrefix(firstline, VERSION) {
-				//status line
-				//SIP/2.0 200 OK
-				var num int64
-				num, err = strconv.ParseInt(tmp[1], 10, 64)
-				if err != nil {
-					return
-				}
-				msg.Mode = SIP_MESSAGE_RESPONSE
-				msg.StartLine = &StartLine{
-					raw:     firstline,
-					Version: VERSION,
-					Code:    int(num),
-					phrase:  strings.Join(tmp[2:], " "),
-				}
-			} else {
-				//request line
-				//REGISTER sip:34020000002000000001@3402000000 SIP/2.0
-				//MESSAGE sip:34020000002000000001@3402000000 SIP/2.0
-				msg.Mode = SIP_MESSAGE_REQUEST
-				msg.StartLine = &StartLine{
-					raw:     firstline,
-					Method:  Method(tmp[0]),
-					Version: VERSION,
-				}
-				if len(tmp) > 1 {
-					msg.StartLine.Uri, err = parseURI(tmp[1])
-					if err != nil {
-						return
-					}
-				} else {
-					fmt.Println(firstline)
-				}
-			}
-			continue
-		}
-
-		pos := strings.IndexByte(line, ':')
-		if pos == -1 {
-			continue
-		}
-		k := strings.ToLower(strings.TrimSpace(line[:pos]))
-		v := strings.TrimSpace(line[pos+1:])
-		//fmt.Printf("%02d ---k = %s , v = %s\n", i, k, v)
-
-		if len(v) == 0 {
-			continue
-		}
-
-		switch k {
-		case "via":
-			//Via: SIP/2.0/UDP 192.168.1.64:5060;rport;branch=z9hG4bK385701375
-			msg.Via = &Via{}
-			err = msg.Via.Parse(v)
-			if err != nil {
-				return
-			}
-
-		case "from":
-			msg.From = &Contact{}
-			err = msg.From.Parse(v)
-			if err != nil {
-				return
-			}
-
-		case "to":
-			msg.To = &Contact{}
-			err = msg.To.Parse(v)
-			if err != nil {
-				return
-			}
-
-		case "call-id":
-			msg.CallID = v
-
-		case "cseq":
-			//CSeq: 2 REGISTER
-			msg.CSeq = &CSeq{}
-			err = msg.CSeq.Parse(v)
-			if err != nil {
-				return
-			}
-
-		case "contact":
-			msg.Contact = &Contact{}
-			err = msg.Contact.Parse(v)
-			if err != nil {
-				return
-			}
-
-		case "max-forwards":
-			n, err := strconv.ParseInt(v, 10, 64)
-			if err != nil {
-				fmt.Printf("parse head faield: %s,%s\n", k, v)
-				return nil, err
-			}
-			msg.MaxForwards = int(n)
-
-		case "user-agent":
-			msg.UserAgent = v
-
-		case "expires":
-			n, err := strconv.ParseInt(v, 10, 64)
-			if err != nil {
-				fmt.Printf("parse head faield: %s,%s\n", k, v)
-				return nil, err
-			}
-			msg.Expires = int(n)
-
-		case "content-length":
-			n, err := strconv.ParseInt(v, 10, 64)
-			if err != nil {
-				fmt.Printf("parse head faield: %s,%s\n", k, v)
-				return nil, err
-			}
-			msg.ContentLength = int(n)
-
-		case "authorization":
-			msg.Authorization = v
-
-		case "content-type":
-			msg.ContentType = v
-		case "route":
-			//msg.Route = new(Contact)
-			//msg.Route.Parse(v)
-		default:
-			fmt.Printf("invalid sip head: %s,%s\n", k, v)
-		}
-	}
-	return
-}
-
-func Encode(msg *Message) ([]byte, error) {
-	sb := strings.Builder{}
-	sb.WriteString(msg.StartLine.String())
-	sb.WriteString(CRLF)
-
-	if msg.Via != nil {
-		sb.WriteString("Via: ")
-		sb.WriteString(msg.Via.String())
-		sb.WriteString(CRLF)
-	}
-
-	if msg.From != nil {
-		sb.WriteString("From: ")
-		sb.WriteString(msg.From.String())
-		sb.WriteString(CRLF)
-	}
-
-	if msg.To != nil {
-		sb.WriteString("To: ")
-		sb.WriteString(msg.To.String())
-		sb.WriteString(CRLF)
-	}
-
-	if msg.CallID != "" {
-		sb.WriteString("Call-ID: ")
-		sb.WriteString(msg.CallID)
-		sb.WriteString(CRLF)
-	}
-	if msg.CSeq != nil {
-		sb.WriteString("CSeq: ")
-		sb.WriteString(msg.CSeq.String())
-		sb.WriteString(CRLF)
-	}
-
-	if msg.Contact != nil {
-		sb.WriteString("Contact: ")
-		sb.WriteString(msg.Contact.String())
-		sb.WriteString(CRLF)
-	}
-
-	if msg.UserAgent != "" {
-		sb.WriteString("User-Agent: ")
-		sb.WriteString(msg.UserAgent)
-		sb.WriteString(CRLF)
-	}
-
-	if msg.ContentType != "" {
-		sb.WriteString("Content-Type: ")
-		sb.WriteString(msg.ContentType)
-		sb.WriteString(CRLF)
-	}
-
-	if msg.Expires != 0 {
-		sb.WriteString("Expires: ")
-		sb.WriteString(strconv.Itoa(msg.Expires))
-		sb.WriteString(CRLF)
-	}
-
-	if msg.Subject != "" {
-		sb.WriteString("Subject: ")
-		sb.WriteString(msg.Subject)
-		sb.WriteString(CRLF)
-	}
-
-	if msg.IsRequest() {
-		//request only
-
-		sb.WriteString("Max-Forwards: ")
-		sb.WriteString(strconv.Itoa(msg.MaxForwards))
-		sb.WriteString(CRLF)
-
-		if msg.Authorization != "" {
-			sb.WriteString("Authorization: ")
-			sb.WriteString(msg.Authorization)
-			sb.WriteString(CRLF)
-		}
-	} else {
-		//response only
-	}
-
-	sb.WriteString("Content-Length: ")
-	sb.WriteString(strconv.Itoa(msg.ContentLength))
-
-	sb.WriteString(CRLFCRLF)
-
-	if msg.Body != "" {
-		sb.WriteString(msg.Body)
-	}
-
-	return []byte(sb.String()), nil
-}

sip/status.go

@@ -1,95 +0,0 @@
-package sip
-
-import "fmt"
-
-//transaction sip error
-var errorMap = map[int]string{
-	//1xx
-	100: "Trying",
-	180: "Ringing",
-	181: "Call Is Being Forwarded",
-	182: "Queued",
-	183: "Session Progress",
-	199: "Early Dialog Terminated",
-	//2xx
-	200: "OK",
-	202: "Accepted",
-	204: "No Notification",
-	//3xx
-	300: "Multiple Choices",
-	301: "Moved Permanently",
-	302: "Moved Temporarily",
-	305: "Use Proxy",
-	380: "Alternative Service",
-	//4xx
-	400: "Bad Request",
-	401: "Unauthorized",
-	402: "Payment Required",
-	403: "Forbidden",
-	404: "Not Found",
-	405: "Method Not Allowed",
-	406: "Not Acceptable",
-	407: "Proxy Authentication Required",
-	408: "Request Timeout",
-	409: "Conflict",
-	410: "Gone",
-	411: "Length Required",
-	412: "Conditional Request Failed",
-	413: "Request Entity Too Large",
-	414: "Request-URI Too Long",
-	415: "Unsupported Media Type",
-	416: "Unsupported URI Scheme",
-	417: "Unknown Resource-Priority",
-	420: "Bad Extension",
-	421: "Extension Required",
-	422: "Session Interval Too Small",
-	423: "Interval Too Brief",
-	424: "Bad Location Information",
-	428: "Use Identity Header",
-	429: "Provide Referrer Identity",
-	430: "Flow Failed",
-	433: "Anonymity Disallowed",
-	436: "Bad Identity Info",
-	437: "Unsupported Credential",
-	438: "Invalid Identity Header",
-	439: "First Hop Lacks Outbound Support",
-	440: "Max-Breadth Exceeded",
-	469: "Bad Info Package",
-	470: "Consent Needed",
-	480: "Temporarily Unavailable",
-	481: "Call/Transaction Does Not Exist",
-	482: "Loop Detected",
-	483: "Too Many Hops",
-	484: "Address Incomplete",
-	485: "Ambiguous",
-	486: "Busy Here",
-	487: "Request Terminated",
-	488: "Not Acceptable Here",
-	489: "Bad Event",
-	491: "Request Pending",
-	493: "Undecipherable",
-	494: "Security Agreement Required",
-	//5xx
-	500: "Server Internal Error",
-	501: "Not Implemented",
-	502: "Bad Gateway",
-	503: "Service Unavailable",
-	504: "Server Time-out",
-	505: "Version Not Supported",
-	513: "Message Too Large",
-	580: "Precondition Failure",
-	//6xx
-	600: "Busy Everywhere",
-	603: "Decline",
-	604: "Does Not Exist Anywhere",
-	606: "Not Acceptable",
-	607: "Unwanted",
-	687: "Dialog Terminated",
-}
-
-func DumpError(code int) string {
-	if code == 0 {
-		return "invalid status reason for request"
-	}
-	return fmt.Sprintf("%d %s", code, errorMap[code])
-}

transaction/README.md

@@ -1,36 +0,0 @@
-#### 事物
-transaction事务是SIP的基本组成部分。
-一个事务是客户发送的一个请求事务（通过通讯层）发送到一个服务器事务，连同服务器事务的所有的该请求的应答发送回客户端事务。
-事务层处理应用服务层的重发，匹配请求的应答，以及应用服务层的超时。
-任何一个用户代理客户端（user agent client UAC）完成的事情都是由一组事务构成的。
-用户代理包含一个事务层，来实现有状态的代理服务器。
-事务层包含一个客户元素（可以认为是一个客户事务）和一个服务器元素（可以认为是一个服务器事务），他们都可以用一个有限状态机来处理特定的请求。
-
-在状态机层面，事物分为ict、ist、nict、nist四种。
-但底层事物方面，仅根据 method 等信息，分支处理。
-
-#### 关于事物管理
-
-事物在map里面管理，事物ID的选择是要和事物匹配相关。
-
-```
-客户端事件的匹配
-
-当客户端中的传输层收到响应时，它必须确定哪个客户端事务将处理该响应，以便可以进行17.1.1和17.1.2节的处理。头域 Via 字段中的branch参数用于匹配规则。 一个匹配的响应应该满足下面两个条件：
-1.如果响应的头域 Via头字段中的branch参数值与创建事务的请求的头域 Via头字段中的branch参数值相同。
-2.如果CSeq标头字段中的method参数与创建事务的请求的方法匹配。（由于CANCEL请求会创建新的事务，但共享相同的branch参数值。所以仅用branch参数是不够的）
-
-
-服务端事物匹配
-
-首先要检查请求中的Via头域的branch参数。如果他以”z9hG4bk”开头，那么这个请求一定是由客户端事务根据本规范产生的。因此，branch参数在该客户端发出的所有的事务中都是唯一的。根据下列规则我们可以判定请求是否和事务匹配：
-
-1、 请求的Via头域的branch参数和创建本事务的请求的Via头域的branch参数一样，并且：
-2、 请求的Via头域的send－by参数和创建本事务的请求的Via头域的send-by参数一样（可能存在来自不同客户端的branch参数的意外或恶意重复，所以将 send-by 值用作匹配的一部分），并且：
-3、 请求的方法与创建事务的方法匹配，但ACK除外，在ACK中，创建事务的请求的方法为INVITE。
-```
-
-所以，根据匹配规则，事物的ID 使用 branch，然后在匹配逻辑里面，再做条件判断。而因为branch可能会重复，所以如果使用map来简化transaction的管理，key的取值应该：
-
-客户端事物: branch+method
-服务端事物: branch + sendby + method,method中ack还要除外。所以只能用branch + sendby

transaction/config.go

@@ -1,61 +0,0 @@
-package transaction
-
-//SIP服务器静态配置信息
-
-/*
-# sip监听udp端口
-listen              5060;
-
-# SIP server ID(SIP服务器ID).
-# 设备端配置编号需要与该值一致，否则无法注册
-serial              34020000002000000001;
-
-# SIP server domain(SIP服务器域)
-realm               3402000000;
-
-# 服务端发送ack后，接收回应的超时时间，单位为秒
-# 如果指定时间没有回应，认为失败
-ack_timeout         30;
-
-# 设备心跳维持时间，如果指定时间内(秒）没有接收一个心跳
-# 认为设备离线
-keepalive_timeout   120;
-
-# 注册之后是否自动给设备端发送invite
-# on: 是  off 不是，需要通过api控制
-auto_play           on;
-# 设备将流发送的端口，是否固定
-# on 发送流到多路复用端口 如9000
-# off 自动从rtp_mix_port - rtp_max_port 之间的值中
-# 选一个可以用的端口
-invite_port_fixed     on;
-
-# 向设备或下级域查询设备列表的间隔，单位(秒)
-# 默认60秒
-query_catalog_interval  60;
-*/
-
-type Config struct {
-	//sip服务器的配置
-	SipNetwork string //传输协议，默认UDP，可选TCP
-	SipIP      string //sip 服务器公网IP
-	SipPort    uint16 //sip 服务器端口，默认 5060
-	Serial     string //sip 服务器 id, 默认 34020000002000000001
-	Realm      string //sip 服务器域，默认 3402000000
-
-	AckTimeout        uint16 //sip 服务应答超时，单位秒
-	RegisterValidity  int    //注册有效期，单位秒，默认 3600
-	RegisterInterval  int    //注册间隔，单位秒，默认 60
-	HeartbeatInterval int    //心跳间隔，单位秒，默认 60
-	HeartbeatRetry    int    //心跳超时次数，默认 3
-
-	//媒体服务器配置
-	MediaIP          string //媒体服务器地址
-	MediaPort        uint16 //媒体服务器端口
-	MediaPortMin     uint16
-	MediaPortMax     uint16
-	MediaIdleTimeout uint16 //推流超时时间，超过则断开链接，让设备重连
-	AudioEnable      bool   //是否开启音频
-	WaitKeyFrame     bool   //是否等待关键帧，如果等待，则在收到第一个关键帧之前，忽略所有媒体流
-	CatalogInterval      int    //目录查询间隔
-}

transaction/core.go

@@ -1,380 +0,0 @@
-package transaction
-
-import (
-	"context"
-	"fmt"
-	"net"
-	"sync"
-	"time"
-
-	"github.com/Monibuca/plugin-gb28181/v3/sip"
-	"github.com/Monibuca/plugin-gb28181/v3/transport"
-)
-
-//Core: transactions manager
-//管理所有 transactions，以及相关全局参数、运行状态机
-type Core struct {
-	ctx          context.Context             //上下文
-	handlers     map[State]map[Event]Handler //每个状态都可以处理有限个事件。不必加锁。
-	transactions map[string]*Transaction     //管理所有 transactions,key:tid,value:transaction
-	mutex        sync.RWMutex                //transactions的锁
-	tp           transport.ITransport        //transport
-	*Config                                  //sip server配置信息
-	OnRegister   func(*sip.Message)
-	OnMessage    func(*sip.Message) bool
-}
-
-//初始化一个 Core，需要能响应请求，也要能发起请求
-//client 发起请求
-//server 响应请求
-//TODO:根据角色，增加相关配置信息
-//TODO:通过context管理子线程
-//TODO:单元测试
-func NewCore(config *Config) *Core {
-	core := &Core{
-		handlers:     make(map[State]map[Event]Handler),
-		transactions: make(map[string]*Transaction),
-		Config:       config,
-		ctx:          context.Background(),
-	}
-	if config.SipNetwork == "TCP" {
-		core.tp = transport.NewTCPServer(config.SipPort, true)
-	} else {
-		core.tp = transport.NewUDPServer(config.SipPort)
-	}
-	//填充fsm
-	core.addICTHandler()
-	core.addISTHandler()
-	core.addNICTHandler()
-	core.addNISTHandler()
-	return core
-}
-
-//add transaction to core
-func (c *Core) AddTransaction(ta *Transaction) {
-	c.mutex.Lock()
-	c.transactions[ta.id] = ta
-	c.mutex.Unlock()
-}
-
-//delete transaction
-func (c *Core) DelTransaction(tid string) {
-	c.mutex.Lock()
-	delete(c.transactions, tid)
-	c.mutex.Unlock()
-}
-
-//创建事物
-//填充此事物的参数：via、from、to、callID、cseq
-func (c *Core) initTransaction(ctx context.Context, tid string, m *sip.Message) *Transaction {
-	//ack要么属于一个invite事物，要么由TU层直接管理，不通过事物管理。
-	if m.GetMethod() == sip.ACK {
-		fmt.Println("ack nerver create transaction")
-		return nil
-	}
-	ta := &Transaction{
-		id:       tid,
-		core:     c,
-		response: make(chan *Response),
-		startAt:  time.Now(),
-		endAt:    time.Now().Add(1000000 * time.Hour),
-	}
-	ta.Context, ta.cancel = context.WithTimeout(ctx,time.Second*5)
-	//填充其他transaction的信息
-	ta.via = m.Via
-	ta.from = m.From
-	ta.to = m.To
-	ta.callID = m.CallID
-	ta.cseq = m.CSeq
-	ta.origRequest = m
-
-	return ta
-}
-
-//状态机初始化:ICT
-func (c *Core) addICTHandler() {
-	c.addHandler(ICT_PRE_CALLING, SND_REQINVITE, ict_snd_invite)
-	c.addHandler(ICT_CALLING, TIMEOUT_A, osip_ict_timeout_a_event)
-	c.addHandler(ICT_CALLING, TIMEOUT_B, osip_ict_timeout_b_event)
-	c.addHandler(ICT_CALLING, RCV_STATUS_1XX, ict_rcv_1xx)
-	c.addHandler(ICT_CALLING, RCV_STATUS_2XX, ict_rcv_2xx)
-	c.addHandler(ICT_CALLING, RCV_STATUS_3456XX, ict_rcv_3456xx)
-	c.addHandler(ICT_PROCEEDING, RCV_STATUS_1XX, ict_rcv_1xx)
-	c.addHandler(ICT_PROCEEDING, RCV_STATUS_2XX, ict_rcv_2xx)
-	c.addHandler(ICT_PROCEEDING, RCV_STATUS_3456XX, ict_rcv_3456xx)
-	c.addHandler(ICT_COMPLETED, RCV_STATUS_3456XX, ict_retransmit_ack)
-	c.addHandler(ICT_COMPLETED, TIMEOUT_D, osip_ict_timeout_d_event)
-}
-
-//状态机初始化:IST
-func (c *Core) addISTHandler() {
-	c.addHandler(IST_PRE_PROCEEDING, RCV_REQINVITE, ist_rcv_invite)
-	c.addHandler(IST_PROCEEDING, RCV_REQINVITE, ist_rcv_invite)
-	c.addHandler(IST_COMPLETED, RCV_REQINVITE, ist_rcv_invite)
-	c.addHandler(IST_COMPLETED, TIMEOUT_G, osip_ist_timeout_g_event)
-	c.addHandler(IST_COMPLETED, TIMEOUT_H, osip_ist_timeout_h_event)
-	c.addHandler(IST_PROCEEDING, SND_STATUS_1XX, ist_snd_1xx)
-	c.addHandler(IST_PROCEEDING, SND_STATUS_2XX, ist_snd_2xx)
-	c.addHandler(IST_PROCEEDING, SND_STATUS_3456XX, ist_snd_3456xx)
-	c.addHandler(IST_COMPLETED, RCV_REQACK, ist_rcv_ack)
-	c.addHandler(IST_CONFIRMED, RCV_REQACK, ist_rcv_ack)
-	c.addHandler(IST_CONFIRMED, TIMEOUT_I, osip_ist_timeout_i_event)
-}
-
-//状态机初始化:NICT
-func (c *Core) addNICTHandler() {
-	c.addHandler(NICT_PRE_TRYING, SND_REQUEST, nict_snd_request)
-	c.addHandler(NICT_TRYING, TIMEOUT_F, osip_nict_timeout_f_event)
-	c.addHandler(NICT_TRYING, TIMEOUT_E, osip_nict_timeout_e_event)
-	c.addHandler(NICT_TRYING, RCV_STATUS_1XX, nict_rcv_1xx)
-	c.addHandler(NICT_TRYING, RCV_STATUS_2XX, nict_rcv_23456xx)
-	c.addHandler(NICT_TRYING, RCV_STATUS_3456XX, nict_rcv_23456xx)
-	c.addHandler(NICT_PROCEEDING, TIMEOUT_F, osip_nict_timeout_f_event)
-	c.addHandler(NICT_PROCEEDING, TIMEOUT_E, osip_nict_timeout_e_event)
-	c.addHandler(NICT_PROCEEDING, RCV_STATUS_1XX, nict_rcv_1xx)
-	c.addHandler(NICT_PROCEEDING, RCV_STATUS_2XX, nict_rcv_23456xx)
-	c.addHandler(NICT_PROCEEDING, RCV_STATUS_3456XX, nict_rcv_23456xx)
-	c.addHandler(NICT_COMPLETED, TIMEOUT_K, osip_nict_timeout_k_event)
-}
-
-//状态机初始化:NIST
-func (c *Core) addNISTHandler() {
-	c.addHandler(NIST_PRE_TRYING, RCV_REQUEST, nist_rcv_request)
-	c.addHandler(NIST_TRYING, SND_STATUS_1XX, nist_snd_1xx)
-	c.addHandler(NIST_TRYING, SND_STATUS_2XX, nist_snd_23456xx)
-	c.addHandler(NIST_TRYING, SND_STATUS_3456XX, nist_snd_23456xx)
-	c.addHandler(NIST_PROCEEDING, SND_STATUS_1XX, nist_snd_1xx)
-	c.addHandler(NIST_PROCEEDING, SND_STATUS_2XX, nist_snd_23456xx)
-	c.addHandler(NIST_PROCEEDING, SND_STATUS_3456XX, nist_snd_23456xx)
-	c.addHandler(NIST_PROCEEDING, RCV_REQUEST, nist_rcv_request)
-	c.addHandler(NIST_COMPLETED, TIMEOUT_J, osip_nist_timeout_j_event)
-	c.addHandler(NIST_COMPLETED, RCV_REQUEST, nist_rcv_request)
-}
-
-//状态机初始化：根据state 匹配到对应的状态机
-func (c *Core) addHandler(state State, event Event, handler Handler) {
-	m := c.handlers
-
-	if state >= DIALOG_CLOSE {
-		fmt.Println("invalid state:", state)
-		return
-	}
-
-	if event >= UNKNOWN_EVT {
-		fmt.Println("invalid event:", event)
-		return
-	}
-
-	if _, ok := m[state]; !ok {
-		m[state] = make(map[Event]Handler)
-	}
-
-	if _, ok := m[state][event]; ok {
-		fmt.Printf("state:%d,event:%d, has been exist\n", state, event)
-	} else {
-		m[state][event] = handler
-	}
-}
-
-func (c *Core) Start() {
-	go c.Handler()
-
-	c.tp.Start()
-}
-
-func (c *Core) Handler() {
-	//阻塞读取消息
-	for p := range c.tp.ReadPacketChan() {
-		if len(p.Data) < 5 {
-			continue
-		}
-		if err := c.HandleReceiveMessage(p); err != nil {
-			fmt.Println("handler sip response message failed:", err.Error())
-			continue
-		}
-	}
-}
-
-//发送消息：发送请求或者响应
-//发送消息仅负责发送。报错有两种：1、发送错误。2、发送了但是超时没有收到响应
-//如果发送成功，如何判断是否收到响应？没有收到响应要重传
-//所以一个transaction 有read和wriet的chan。
-//发送的时候写 write chan
-//接收的时候读取 read chan
-//发送之后，就开启timer，超时重传，还要记录和修改每次超时时间。不超时的话，记得删掉timer
-//发送 register 消息
-func (c *Core) SendMessage(msg *sip.Message) *Response {
-	method := msg.GetMethod()
-	// data, _ := sip.Encode(msg)
-	// fmt.Println("send message:", method)
-	evt := getOutGoingMessageEvent(msg)
-	tid := getMessageTransactionID(msg)
-	//匹配事物
-	c.mutex.RLock()
-	ta, ok := c.transactions[tid]
-	c.mutex.RUnlock()
-	if !ok {
-		//新的请求
-		ta = c.initTransaction(c.ctx, tid, msg)
-
-		//如果是sip 消息事件，则将消息缓存，填充typo和state
-		if msg.IsRequest() {
-			//as uac
-			if method == sip.INVITE || method == sip.ACK {
-				ta.typo = FSM_ICT
-				ta.state = ICT_PRE_CALLING
-			} else {
-				ta.typo = FSM_NICT
-				ta.state = NICT_PRE_TRYING
-			}
-		} else {
-			//as uas:send response
-
-		}
-
-		c.AddTransaction(ta)
-	}
-
-	//把event推到transaction
-	ta.Run(evt, msg)
-	<-ta.Done()
-	if ta.lastResponse != nil {
-		return &Response{
-			Code:    ta.lastResponse.GetStatusCode(),
-			Data:    ta.lastResponse,
-			Message: ta.lastResponse.GetReason(),
-		}
-	} else {
-		return &Response{
-			Code: 504,
-		}
-	}
-}
-
-//接收到的消息处理
-//收到消息有两种：1、请求消息 2、响应消息
-//请求消息则直接响应处理。
-//响应消息则需要匹配到请求，让请求的transaction来处理。
-//TODO：参考srs和osip的流程，以及文档，做最终处理。需要将逻辑分成两层：TU 层和 transaction 层
-func (c *Core) HandleReceiveMessage(p *transport.Packet) (err error) {
-	// fmt.Println("packet content:", string(p.Data))
-	var msg *sip.Message
-	msg, err = sip.Decode(p.Data)
-	if err != nil {
-		fmt.Println("parse sip message failed:", err.Error())
-		return ErrorParse
-	}
-	if msg.Via == nil {
-		return ErrorParse
-	}
-	//这里不处理超过MTU的包，不处理半包
-	err = checkMessage(msg)
-	if err != nil {
-		return err
-	}
-
-	//fmt.Println("receive message:", msg.GetMethod())
-	evt := getInComingMessageEvent(msg)
-	tid := getMessageTransactionID(msg)
-	//一般应该是uas对于接收到的request做预处理
-	if msg.IsRequest() {
-		fixReceiveMessageViaParams(msg, p.Addr)
-	} else {
-		//TODO:对于uac，收到response消息，是否要检查 rport 和 received 呢？因为uas可能对此做了修改
-	}
-	//TODO：CANCEL、BYE 和 ACK 需要特殊处理，使用事物或者直接由TU层处理
-	//查找transaction
-	c.mutex.RLock()
-	ta, ok := c.transactions[tid]
-	c.mutex.RUnlock()
-	method := msg.GetMethod()
-	if msg.IsRequest() {
-		switch method {
-		case sip.ACK:
-			//TODO:this should be a ACK for 2xx (but could be a late ACK!)
-			return
-		case sip.BYE:
-			c.Send(msg.BuildResponse(200))
-			return
-		case sip.MESSAGE:
-			if c.OnMessage(msg) && ta == nil {
-				c.Send(msg.BuildResponse(200))
-			}
-			if ta != nil {
-				m := msg.BuildResponse(200)
-				ta.Run(getOutGoingMessageEvent(m), m)
-			}
-		case sip.REGISTER:
-			if !ok {
-				ta = c.initTransaction(c.ctx, tid, msg)
-				ta.typo = FSM_NIST
-				ta.state = NIST_PROCEEDING
-				c.AddTransaction(ta)
-			}
-			c.OnRegister(msg)
-			m := msg.BuildResponse(200)
-			ta.Run(getOutGoingMessageEvent(m), m)
-		//case sip.INVITE:
-		//	ta.typo = FSM_IST
-		//	ta.state = IST_PRE_PROCEEDING
-		case sip.CANCEL:
-			//TODO:CANCEL处理
-			/* special handling for CANCEL */
-			/* in the new spec, if the CANCEL has a Via branch, then it
-			is the same as the one in the original INVITE */
-			return
-		}
-	} else if ok {
-		ta.Run(evt, msg)
-	}
-	//TODO：TU层处理：根据需要，创建，或者匹配 Dialog
-	//通过tag匹配到call和dialog
-	//处理是否要重传ack
-	return
-}
-func (c *Core) Send(msg *sip.Message) error {
-	addr := msg.Addr
-
-	if addr == "" {
-		viaParams := msg.Via.Params
-		var host, port string
-		var ok1, ok2 bool
-		if host, ok1 = viaParams["maddr"]; !ok1 {
-			if host, ok2 = viaParams["received"]; !ok2 {
-				host = msg.Via.Host
-			}
-		}
-		//port
-		port = viaParams["rport"]
-		if port == "" || port == "0" || port == "-1" {
-			port = msg.Via.Port
-		}
-
-		if port == "" {
-			port = "5060"
-		}
-
-		addr = fmt.Sprintf("%s:%s", host, port)
-	}
-
-	// fmt.Println("dest addr:", addr)
-	var err1, err2 error
-	pkt := &transport.Packet{}
-	pkt.Data, err1 = sip.Encode(msg)
-
-	if msg.Via.Transport == "UDP" {
-		pkt.Addr, err2 = net.ResolveUDPAddr("udp", addr)
-	} else {
-		pkt.Addr, err2 = net.ResolveTCPAddr("tcp", addr)
-	}
-
-	if err1 != nil {
-		return err1
-	}
-
-	if err2 != nil {
-		return err2
-	}
-	c.tp.WritePacket(pkt)
-	return nil
-}

transaction/errors.go

@@ -1,13 +0,0 @@
-package transaction
-
-import (
-	"errors"
-)
-
-//transaction 的错误定义
-var (
-	ErrorSyntax  = errors.New("message syntax error")
-	ErrorCheck   = errors.New("message check failed")
-	ErrorParse   = errors.New("message parse failed")
-	ErrorUnknown = errors.New("message unknown")
-)

transaction/fsm_ict.go

@@ -1,155 +0,0 @@
-package transaction
-
-import (
-	"github.com/Monibuca/plugin-gb28181/v3/sip"
-)
-
-/*
-                               |INVITE from TU
-             Timer A fires     |INVITE sent
-             Reset A,          V                      Timer B fires
-             INVITE sent +-----------+                or Transport Err.
-               +---------|           |---------------+inform TU
-               |         |  Calling  |               |
-               +-------->|           |-------------->|
-                         +-----------+ 2xx           |
-                            |  |       2xx to TU     |
-                            |  |1xx                  |
-    300-699 +---------------+  |1xx to TU            |
-   ACK sent |                  |                     |
-resp. to TU |  1xx             V                     |
-            |  1xx to TU  -----------+               |
-            |  +---------|           |               |
-            |  |         |Proceeding |-------------->|
-            |  +-------->|           | 2xx           |
-            |            +-----------+ 2xx to TU     |
-            |       300-699    |                     |
-            |       ACK sent,  |                     |
-            |       resp. to TU|                     |
-            |                  |                     |      NOTE:
-            |  300-699         V                     |
-            |  ACK sent  +-----------+Transport Err. |  transitions
-            |  +---------|           |Inform TU      |  labeled with
-            |  |         | Completed |-------------->|  the event
-            |  +-------->|           |               |  over the action
-            |            +-----------+               |  to take
-            |              ^   |                     |
-            |              |   | Timer D fires       |
-            +--------------+   | -                   |
-                               |                     |
-                               V                     |
-                         +-----------+               |
-                         |           |               |
-                         | Terminated|<--------------+
-                         |           |
-                         +-----------+
-
-                 Figure 5: INVITE client transaction
-*/
-func ict_snd_invite(t *Transaction, evt Event, m *sip.Message) error {
-
-	t.isReliable = m.IsReliable()
-	t.origRequest = m
-	t.state = ICT_CALLING
-
-	//发送出去之后，开启 timer
-	if m.IsReliable() {
-		//stop timer E in reliable transport
-		//fmt.Println("Reliabel")
-	} else {
-		//fmt.Println("Not Reliable")
-		//发送定时器，每次加倍，没有上限？
-		t.timerA = NewSipTimer(T1, 0, func() {
-			if t.Err() == nil {
-				t.Run(TIMEOUT_A, nil)
-			}
-		})
-	}
-	t.RunAfter(TimeB, TIMEOUT_B)
-	return nil
-}
-
-func osip_ict_timeout_a_event(t *Transaction, evt Event, m *sip.Message) error {
-	err := t.SipSend(t.origRequest)
-	if err != nil {
-		//发送失败
-		t.Terminate()
-		return err
-	}
-	t.timerA.Reset(t.timerA.timeout * 2)
-
-	return nil
-}
-
-func osip_ict_timeout_b_event(t *Transaction, evt Event, m *sip.Message) error {
-	t.Terminate()
-	return nil
-}
-
-func ict_rcv_1xx(t *Transaction, evt Event, m *sip.Message) error {
-	t.lastResponse = m
-	t.state = ICT_PROCEEDING
-	return nil
-}
-func ict_rcv_2xx(t *Transaction, evt Event, m *sip.Message) error {
-	t.lastResponse = m
-	t.Terminate()
-
-	return nil
-}
-func ict_rcv_3456xx(t *Transaction, evt Event, m *sip.Message) error {
-	t.lastResponse = m
-	if t.state != ICT_COMPLETED {
-		/* not a retransmission */
-		/* automatic handling of ack! */
-		ack := ict_create_ack(t, m)
-		t.ack = ack
-		_ = t.SipSend(t.ack)
-		t.Terminate()
-	}
-	t.RunAfter(TimeD, TIMEOUT_D)
-	t.state = ICT_COMPLETED
-
-	return nil
-}
-
-func ict_create_ack(t *Transaction, resp *sip.Message) *sip.Message {
-	return &sip.Message{
-		Mode: t.origRequest.Mode,
-		Addr: t.origRequest.Addr,
-		StartLine: &sip.StartLine{
-			Method: sip.ACK,
-			Uri:    t.origRequest.StartLine.Uri,
-		},
-		MaxForwards: t.origRequest.MaxForwards,
-		CallID:      t.callID,
-		Contact:     t.origRequest.Contact,
-		UserAgent:   t.origRequest.UserAgent,
-		Via:         t.via,
-		From:        t.from,
-		To:          t.to,
-		CSeq: &sip.CSeq{
-			ID:     1,
-			Method: sip.ACK,
-		},
-	}
-}
-
-func ict_retransmit_ack(t *Transaction, evt Event, m *sip.Message) error {
-	if t.ack == nil {
-		/* ??? we should make a new ACK and send it!!! */
-		return nil
-	}
-
-	err := t.SipSend(t.ack)
-	if err != nil {
-		return err
-	}
-	t.state = ICT_COMPLETED
-	return nil
-}
-
-func osip_ict_timeout_d_event(t *Transaction, evt Event, m *sip.Message) error {
-	t.Terminate()
-	return nil
-}

transaction/fsm_ist.go

@@ -1,28 +0,0 @@
-package transaction
-
-import "github.com/Monibuca/plugin-gb28181/v3/sip"
-
-func ist_rcv_invite(t *Transaction, evt Event,m *sip.Message) error {
-	return nil
-}
-func osip_ist_timeout_g_event(t *Transaction, evt Event,m *sip.Message) error {
-	return nil
-}
-func osip_ist_timeout_h_event(t *Transaction, evt Event,m *sip.Message) error {
-	return nil
-}
-func ist_snd_1xx(t *Transaction, evt Event,m *sip.Message) error {
-	return nil
-}
-func ist_snd_2xx(t *Transaction, evt Event,m *sip.Message) error {
-	return nil
-}
-func ist_snd_3456xx(t *Transaction, evt Event,m *sip.Message) error {
-	return nil
-}
-func ist_rcv_ack(t *Transaction, evt Event,m *sip.Message) error {
-	return nil
-}
-func osip_ist_timeout_i_event(t *Transaction, evt Event,m *sip.Message) error {
-	return nil
-}

transaction/fsm_nict.go

@@ -1,134 +0,0 @@
-package transaction
-
-import (
-	"github.com/Monibuca/plugin-gb28181/v3/sip"
-)
-
-/*
-非invite事物的状态机：
-
-                                   |Request from TU
-                                   |send request
-               Timer E             V
-               send request  +-----------+
-                   +---------|           |-------------------+
-                   |         |  Trying   |  Timer F          |
-                   +-------->|           |  or Transport Err.|
-                             +-----------+  inform TU        |
-                200-699         |  |                         |
-                resp. to TU     |  |1xx                      |
-                +---------------+  |resp. to TU              |
-                |                  |                         |
-                |   Timer E        V       Timer F           |
-                |   send req +-----------+ or Transport Err. |
-                |  +---------|           | inform TU         |
-                |  |         |Proceeding |------------------>|
-                |  +-------->|           |-----+             |
-                |            +-----------+     |1xx          |
-                |              |      ^        |resp to TU   |
-                | 200-699      |      +--------+             |
-                | resp. to TU  |                             |
-                |              |                             |
-                |              V                             |
-                |            +-----------+                   |
-                |            |           |                   |
-                |            | Completed |                   |
-                |            |           |                   |
-                |            +-----------+                   |
-                |              ^   |                         |
-                |              |   | Timer K                 |
-                +--------------+   | -                       |
-                                   |                         |
-                                   V                         |
-             NOTE:           +-----------+                   |
-                             |           |                   |
-         transitions         | Terminated|<------------------+
-         labeled with        |           |
-         the event           +-----------+
-         over the action
-         to take
-
-                 Figure 6: non-INVITE client transaction
-*/
-func nict_snd_request(t *Transaction, evt Event, m *sip.Message) error {
-	//fmt.Println("nict request:", msg.GetMethod())
-
-	t.origRequest = m
-	t.state = NICT_TRYING
-
-	err := t.SipSend(m)
-	if err != nil {
-		t.Terminate()
-		return err
-	}
-
-	//发送出去之后，开启 timer
-	if m.IsReliable() {
-		//stop timer E in reliable transport
-		//fmt.Println("Reliabel")
-	} else {
-		//fmt.Println("Not Reliable")
-		//发送定时器
-
-		t.timerE = NewSipTimer(T1, T2, func() {
-			if t.Err() == nil {
-				t.Run(TIMEOUT_E, nil)
-			}
-		})
-	}
-	t.RunAfter(TimeF, TIMEOUT_F)
-	return nil
-}
-
-//事物超时
-func osip_nict_timeout_f_event(t *Transaction, evt Event, m *sip.Message) error {
-	t.Terminate()
-	return nil
-}
-
-func osip_nict_timeout_e_event(t *Transaction, evt Event, m *sip.Message) error {
-	if t.state == NICT_TRYING {
-		//reset timer
-		t.timerE.Reset(t.timerE.timeout * 2)
-	} else {
-		//in PROCEEDING STATE, TIMER is always T2
-		t.timerE.Reset(T2)
-	}
-
-	//resend origin request
-	err := t.SipSend(t.origRequest)
-	if err != nil {
-		t.Terminate()
-		return err
-	}
-
-	return nil
-}
-
-func nict_rcv_1xx(t *Transaction, evt Event, m *sip.Message) error {
-	t.lastResponse = m
-	t.state = NICT_PROCEEDING
-
-	//重置发送定时器
-	t.timerE.Reset(T2)
-
-	return nil
-}
-
-func nict_rcv_23456xx(t *Transaction, evt Event, m *sip.Message) error {
-	t.lastResponse = m
-	t.state = NICT_COMPLETED
-
-	if m.IsReliable() {
-		//不设置timerK
-	} else {
-		t.RunAfter(T4*64, TIMEOUT_K)
-	}
-
-	return nil
-}
-
-func osip_nict_timeout_k_event(t *Transaction, evt Event, m *sip.Message) error {
-	t.Terminate()
-	return nil
-}

transaction/fsm_nist.go

@@ -1,105 +0,0 @@
-package transaction
-
-import (
-	"fmt"
-
-	"github.com/Monibuca/plugin-gb28181/v3/sip"
-)
-
-/*
-                         |Request received
-                         |pass to TU
-                         V
-                   +-----------+
-                   |           |
-                   | Trying    |-------------+
-                   |           |             |
-                   +-----------+             |200-699 from TU
-                         |                   |send response
-                         |1xx from TU        |
-                         |send response      |
-                         |                   |
-      Request            V      1xx from TU  |
-      send response+-----------+send response|
-          +--------|           |--------+    |
-          |        | Proceeding|        |    |
-          +------->|           |<-------+    |
-   +<--------------|           |             |
-   |Trnsprt Err    +-----------+             |
-   |Inform TU            |                   |
-   |                     |                   |
-   |                     |200-699 from TU    |
-   |                     |send response      |
-   |  Request            V                   |
-   |  send response+-----------+             |
-   |      +--------|           |             |
-   |      |        | Completed |<------------+
-   |      +------->|           |
-   +<--------------|           |
-   |Trnsprt Err    +-----------+
-   |Inform TU            |
-   |                     |Timer J fires
-   |                     |-
-   |                     |
-   |                     V
-   |               +-----------+
-   |               |           |
-   +-------------->| Terminated|
-                   |           |
-                   +-----------+
-
-       Figure 8: non-INVITE server transaction
-
-*/
-
-func nist_rcv_request(t *Transaction, evt Event, m *sip.Message) error {
-	fmt.Println("rcv request: ", m.GetMethod())
-	fmt.Println("transaction state: ", t.state.String())
-	if t.state != NIST_PRE_TRYING {
-		fmt.Println("rcv request retransmission,do response")
-		if t.lastResponse != nil {
-			err := t.SipSend(t.lastResponse)
-			if err != nil {
-				//transport error
-				return err
-			}
-		}
-		return nil
-	} else {
-		t.origRequest = m
-		t.state = NIST_TRYING
-		t.isReliable = m.IsReliable()
-	}
-
-	return nil
-}
-
-func nist_snd_1xx(t *Transaction, evt Event, m *sip.Message) error {
-	t.lastResponse = m
-	err := t.SipSend(t.lastResponse)
-	if err != nil {
-		return err
-	}
-
-	t.state = NIST_PROCEEDING
-	return nil
-}
-
-func nist_snd_23456xx(t *Transaction, evt Event, m *sip.Message) error {
-	t.lastResponse = m
-	if err := t.SipSend(t.lastResponse); err != nil {
-		return err
-	}
-	if t.state != NIST_COMPLETED {
-		if !t.isReliable {
-			t.RunAfter(T1*64, TIMEOUT_J)
-		}
-	}
-
-	t.state = NIST_COMPLETED
-	return nil
-}
-func osip_nist_timeout_j_event(t *Transaction, evt Event, m *sip.Message) error {
-	t.Terminate()
-	return nil
-}

transaction/transaction.go

@@ -1,430 +0,0 @@
-package transaction
-
-import (
-	"context"
-	"fmt"
-	"net"
-	"sync"
-	"time"
-
-	"github.com/Monibuca/plugin-gb28181/v3/sip"
-	"github.com/Monibuca/plugin-gb28181/v3/transport"
-)
-
-//状态机之状态
-type State int
-
-const (
-	/* STATES for invite client transaction */
-	ICT_PRE_CALLING State = iota
-	ICT_CALLING
-	ICT_PROCEEDING
-	ICT_COMPLETED
-	ICT_TERMINATED
-
-	/* STATES for invite server transaction */
-	IST_PRE_PROCEEDING
-	IST_PROCEEDING
-	IST_COMPLETED
-	IST_CONFIRMED
-	IST_TERMINATED
-
-	/* STATES for NON-invite client transaction */
-	NICT_PRE_TRYING
-	NICT_TRYING
-	NICT_PROCEEDING
-	NICT_COMPLETED
-	NICT_TERMINATED
-
-	/* STATES for NON-invite server transaction */
-	NIST_PRE_TRYING
-	NIST_TRYING
-	NIST_PROCEEDING
-	NIST_COMPLETED
-	NIST_TERMINATED
-
-	/* STATES for dialog */
-	DIALOG_EARLY
-	DIALOG_CONFIRMED
-	DIALOG_CLOSE
-)
-
-var stateMap = map[State]string{
-	ICT_PRE_CALLING:    "ICT_PRE_CALLING",
-	ICT_CALLING:        "ICT_CALLING",
-	ICT_PROCEEDING:     "ICT_PROCEEDING",
-	ICT_COMPLETED:      "ICT_COMPLETED",
-	ICT_TERMINATED:     "ICT_TERMINATED",
-	IST_PRE_PROCEEDING: "IST_PRE_PROCEEDING",
-	IST_PROCEEDING:     "IST_PROCEEDING",
-	IST_COMPLETED:      "IST_COMPLETED",
-	IST_CONFIRMED:      "IST_CONFIRMED",
-	IST_TERMINATED:     "IST_TERMINATED",
-	NICT_PRE_TRYING:    "NICT_PRE_TRYING",
-	NICT_TRYING:        "NICT_TRYING",
-	NICT_PROCEEDING:    "NICT_PROCEEDING",
-	NICT_COMPLETED:     "NICT_COMPLETED",
-	NICT_TERMINATED:    "NICT_TERMINATED",
-	NIST_PRE_TRYING:    "NIST_PRE_TRYING",
-	NIST_TRYING:        "NIST_TRYING",
-	NIST_PROCEEDING:    "NIST_PROCEEDING",
-	NIST_COMPLETED:     "NIST_COMPLETED",
-	NIST_TERMINATED:    "NIST_TERMINATED",
-	DIALOG_EARLY:       "DIALOG_EARLY",
-	DIALOG_CONFIRMED:   "DIALOG_CONFIRMED",
-	DIALOG_CLOSE:       "DIALOG_CLOSE",
-}
-
-func (s State) String() string {
-	return stateMap[s]
-}
-
-//状态机之事件
-type Event int
-
-const (
-	/* TIMEOUT EVENTS for ICT */
-	TIMEOUT_A Event = iota /**< Timer A */
-	TIMEOUT_B              /**< Timer B */
-	TIMEOUT_D              /**< Timer D */
-
-	/* TIMEOUT EVENTS for NICT */
-	TIMEOUT_E /**< Timer E */
-	TIMEOUT_F /**< Timer F */
-	TIMEOUT_K /**< Timer K */
-
-	/* TIMEOUT EVENTS for IST */
-	TIMEOUT_G /**< Timer G */
-	TIMEOUT_H /**< Timer H */
-	TIMEOUT_I /**< Timer I */
-
-	/* TIMEOUT EVENTS for NIST */
-	TIMEOUT_J /**< Timer J */
-
-	/* FOR INCOMING MESSAGE */
-	RCV_REQINVITE     /**< Event is an incoming INVITE request */
-	RCV_REQACK        /**< Event is an incoming ACK request */
-	RCV_REQUEST       /**< Event is an incoming NON-INVITE and NON-ACK request */
-	RCV_STATUS_1XX    /**< Event is an incoming informational response */
-	RCV_STATUS_2XX    /**< Event is an incoming 2XX response */
-	RCV_STATUS_3456XX /**< Event is an incoming final response (not 2XX) */
-
-	/* FOR OUTGOING MESSAGE */
-	SND_REQINVITE     /**< Event is an outgoing INVITE request */
-	SND_REQACK        /**< Event is an outgoing ACK request */
-	SND_REQUEST       /**< Event is an outgoing NON-INVITE and NON-ACK request */
-	SND_STATUS_1XX    /**< Event is an outgoing informational response */
-	SND_STATUS_2XX    /**< Event is an outgoing 2XX response */
-	SND_STATUS_3456XX /**< Event is an outgoing final response (not 2XX) */
-
-	KILL_TRANSACTION /**< Event to 'kill' the transaction before termination */
-	UNKNOWN_EVT      /**< Max event */
-)
-
-var eventMap = map[Event]string{
-	TIMEOUT_A:         "TIMEOUT_A",
-	TIMEOUT_B:         "TIMEOUT_B",
-	TIMEOUT_D:         "TIMEOUT_D",
-	TIMEOUT_E:         "TIMEOUT_E",
-	TIMEOUT_F:         "TIMEOUT_F",
-	TIMEOUT_K:         "TIMEOUT_K",
-	TIMEOUT_G:         "TIMEOUT_G",
-	TIMEOUT_H:         "TIMEOUT_H",
-	TIMEOUT_I:         "TIMEOUT_I",
-	TIMEOUT_J:         "TIMEOUT_J",
-	RCV_REQINVITE:     "RCV_REQINVITE",
-	RCV_REQACK:        "RCV_REQACK",
-	RCV_REQUEST:       "RCV_REQUEST",
-	RCV_STATUS_1XX:    "RCV_STATUS_1XX",
-	RCV_STATUS_2XX:    "RCV_STATUS_2XX",
-	RCV_STATUS_3456XX: "RCV_STATUS_3456XX",
-	SND_REQINVITE:     "SND_REQINVITE",
-	SND_REQACK:        "SND_REQACK",
-	SND_REQUEST:       "SND_REQUEST",
-	SND_STATUS_1XX:    "SND_STATUS_1XX",
-	SND_STATUS_2XX:    "SND_STATUS_2XX",
-	SND_STATUS_3456XX: "SND_STATUS_3456XX",
-	KILL_TRANSACTION:  "KILL_TRANSACTION",
-	UNKNOWN_EVT:       "UNKNOWN_EVT",
-}
-
-func (e Event) String() string {
-	return eventMap[e]
-}
-
-//incoming SIP MESSAGE
-func (e Event) IsIncomingMessage() bool {
-	return e >= RCV_REQINVITE && e <= RCV_STATUS_3456XX
-}
-
-//incoming SIP REQUEST
-func (e Event) IsIncomingRequest() bool {
-	return e == RCV_REQINVITE || e == RCV_REQACK || e == RCV_REQUEST
-}
-
-//incoming SIP RESPONSE
-func (e Event) IsIncomingResponse() bool {
-	return e == RCV_STATUS_1XX || e == RCV_STATUS_2XX || e == RCV_STATUS_3456XX
-}
-
-//outgoing SIP MESSAGE
-func (e Event) IsOutgoingMessage() bool {
-	return e >= SND_REQINVITE && e <= SND_REQINVITE
-}
-
-//outgoing SIP REQUEST
-func (e Event) IsOutgoingRequest() bool {
-	return e == SND_REQINVITE || e == SND_REQACK || e == SND_REQUEST
-}
-
-//outgoing SIP RESPONSE
-func (e Event) IsOutgoingResponse() bool {
-	return e == SND_STATUS_1XX || e == SND_STATUS_2XX || e == SND_STATUS_3456XX
-}
-
-//a SIP MESSAGE
-func (e Event) IsSipMessage() bool {
-	return e >= RCV_REQINVITE && e <= SND_STATUS_3456XX
-}
-
-type EventObj struct {
-	evt Event  // event type
-	tid string // transaction id
-	msg *sip.Message
-}
-
-//状态机类型
-type FSMType int
-
-const (
-	FSM_ICT     FSMType = iota /**< Invite Client (outgoing) Transaction */
-	FSM_IST                    /**< Invite Server (incoming) Transaction */
-	FSM_NICT                   /**< Non-Invite Client (outgoing) Transaction */
-	FSM_NIST                   /**< Non-Invite Server (incoming) Transaction */
-	FSM_UNKNOWN                /**< Invalid Transaction */
-)
-
-var typeMap = map[FSMType]string{
-	FSM_ICT:     "FSM_ICT",
-	FSM_IST:     "FSM_IST",
-	FSM_NICT:    "FSM_NICT",
-	FSM_NIST:    "FSM_NIST",
-	FSM_UNKNOWN: "FSM_UNKNOWN",
-}
-
-func (t FSMType) String() string {
-	return typeMap[t]
-}
-
-//对外将sip通讯封装成请求和响应
-//TODO：可参考http的request和response，屏蔽sip协议细节
-type Request struct {
-	data *sip.Message
-}
-
-//Code = 0，则响应正常
-//Code != 0，打印错误提示信息 Message
-type Response struct {
-	Code    int
-	Message string
-	Data    *sip.Message
-}
-
-type Handler func(*Transaction, Event, *sip.Message) error //操作
-
-type Header map[string]string
-
-// timer相关基础常量、方法等定义
-const (
-	T1      = 100 * time.Millisecond
-	T2      = 4 * time.Second
-	T4      = 5 * time.Second
-	TimeA   = T1
-	TimeB   = 64 * T1
-	TimeD   = 32 * time.Second
-	TimeE   = T1
-	TimeF   = 64 * T1
-	TimeG   = T1
-	TimeH   = 64 * T1
-	TimeI   = T4
-	TimeJ   = 64 * T1
-	TimeK   = T4
-	Time1xx = 100 * time.Millisecond
-)
-
-//TODO：是否要管理当前 transaction 的多次请求和响应的message？
-//TODO：是否要管理当前 transaction 的头域
-//TODO：多种transaction在一个struct里面管理不太方便，暂时写在一起，后期重构分开，并使用interface 解耦
-
-//是否需要tp layer？
-type Transaction struct {
-	cancel          context.CancelFunc
-	context.Context //线程管理、其他参数
-	sync.Mutex
-	id         string  //transaction ID
-	isReliable bool    //是否可靠传输
-	core       *Core   //全局参数
-	typo       FSMType //状态机类型
-
-	state    State          //当前状态
-	response chan *Response //输出的响应
-	startAt  time.Time      //开始时间
-	endAt    time.Time      //结束时间
-
-	//messages []*sip.Message  //传输的消息缓存，origin request/last response/request ack...
-	//header       Header //创建事物的消息头域参数:Via From  To CallID CSeq
-	via          *sip.Via
-	from         *sip.Contact
-	to           *sip.Contact
-	callID       string
-	cseq         *sip.CSeq
-	origRequest  *sip.Message //Initial request
-	lastResponse *sip.Message //Last response，可能是临时的，也可能是最终的
-	ack          *sip.Message //ack request sent
-	//timer for ict
-	timerA *SipTimer
-	//timer for nict
-	timerE *SipTimer
-}
-
-type SipTimer struct {
-	tm      *time.Timer
-	timeout time.Duration //当前超时时间
-	max     time.Duration //最大超时时间
-}
-
-func NewSipTimer(d, max time.Duration, f func()) *SipTimer {
-	return &SipTimer{
-		tm:      time.AfterFunc(d, f),
-		timeout: d,
-		max:     max,
-	}
-}
-
-func (t *SipTimer) Reset(d time.Duration) {
-	t.timeout = d
-	if t.timeout > t.max && t.max != 0 {
-		t.timeout = t.max
-	}
-	t.tm.Reset(t.timeout)
-}
-
-func (ta *Transaction) SetState(s State) {
-	ta.state = s
-}
-
-func (ta *Transaction) GetTid() string {
-	return ta.id
-}
-
-func (ta *Transaction) RunAfter(t time.Duration, evt Event) {
-	time.AfterFunc(t, func() {
-		if ta.Err() == nil {
-			ta.Run(evt, nil)
-		}
-	})
-}
-
-//每一个transaction至少有一个状态机线程运行
-//TODO:如果是一个uac的transaction，则把最后响应的消息返回（通过response chan）
-//transaction有很多消息需要传递到TU，也接收来自TU的消息。
-func (ta *Transaction) Run(evt Event, m *sip.Message) {
-	//根据event调用对应的handler
-	//fmt.Println("fsm run event:", e.evt.String())
-	core := ta.core
-	ta.Lock()
-	defer ta.Unlock()
-	evtHandlers, ok1 := core.handlers[ta.state]
-	if !ok1 {
-		//fmt.Println("invalid state:", ta.state.String())
-		return
-	}
-	f, ok2 := evtHandlers[evt]
-	if !ok2 {
-		//fmt.Println("invalid handler for this event:", e.evt.String())
-		return
-	}
-	//fmt.Printf("state:%s, event:%s\n", state.String(), e.evt.String())
-	err := f(ta, evt, m)
-	if err != nil {
-		//fmt.Printf("transaction run failed, state:%s, event:%s\n", state.String(), e.evt.String())
-	}
-}
-
-//Terminated:事物的终止
-//TODO：check调用时机
-func (ta *Transaction) Terminate() {
-
-	ta.state = NICT_TERMINATED
-
-	switch ta.typo {
-	case FSM_ICT:
-		ta.state = ICT_TERMINATED
-	case FSM_NICT:
-		ta.state = NICT_TERMINATED
-	case FSM_IST:
-		ta.state = IST_TERMINATED
-	case FSM_NIST:
-		ta.state = NIST_TERMINATED
-	}
-
-	//关掉事物
-	ta.cancel()
-	//TODO：某些timer需要检查并关掉，并且设置为nil
-	ta.core.DelTransaction(ta.id)
-}
-
-//根据sip消息，解析出目标服务器地址，发送消息
-func (ta *Transaction) SipSend(msg *sip.Message) error {
-	err := checkMessage(msg)
-	if err != nil {
-		return err
-	}
-	addr := msg.Addr
-	if addr == "" {
-		viaParams := msg.Via.Params
-		//host
-		var host, port string
-		var ok1, ok2 bool
-
-		if host, ok1 = viaParams["maddr"]; !ok1 {
-			if host, ok2 = viaParams["received"]; !ok2 {
-				host = msg.Via.Host
-			}
-		}
-		//port
-		port = viaParams["rport"]
-		if port == "" || port == "0" || port == "-1" {
-			port = msg.Via.Port
-		}
-
-		if port == "" {
-			port = "5060"
-		}
-
-		addr = fmt.Sprintf("%s:%s", host, port)
-	}
-
-	//fmt.Println("dest addr:", addr)
-
-	var err1, err2 error
-	pkt := &transport.Packet{}
-	pkt.Data, err1 = sip.Encode(msg)
-
-	if msg.Via.Transport == "UDP" {
-		pkt.Addr, err2 = net.ResolveUDPAddr("udp", addr)
-	} else {
-		pkt.Addr, err2 = net.ResolveTCPAddr("tcp", addr)
-	}
-
-	if err1 != nil {
-		return err1
-	}
-
-	if err2 != nil {
-		return err2
-	}
-	ta.core.tp.WritePacket(pkt)
-
-	return nil
-}

transaction/utils.go

@@ -1,115 +0,0 @@
-package transaction
-
-import (
-	"fmt"
-	"github.com/Monibuca/plugin-gb28181/v3/sip"
-	"net"
-	"strings"
-)
-
-//=====================================================sip message utils
-//The branch ID parameter in the Via header field values serves as a transaction identifier,
-//and is used by proxies to detect loops.
-//The branch parameter in the topmost Via header field of the request
-//     is examined. If it is present and begins with the magic cookie
-//     "z9hG4bK", the request was generated by a client transaction
-//     compliant to this specification.
-//参考RFC3261
-func getMessageTransactionID(m *sip.Message) string {
-	if m.GetMethod() == sip.ACK {
-		//TODO：在匹配服务端事物的ACK中，创建事务的请求的方法为INVITE。所以ACK消息匹配事物的时候需要注意？？？？
-	}
-	return string(m.GetMethod()) + "_" + m.GetBranch()
-}
-
-//根据收到的响应的消息的状态码，获取事件
-func getInComingMessageEvent(m *sip.Message) Event {
-	//request：根据请求方法来确认事件
-	if m.IsRequest() {
-		method := m.GetMethod()
-		if method == sip.INVITE {
-			return RCV_REQINVITE
-		} else if method == sip.ACK {
-			return RCV_REQACK
-		} else {
-			return RCV_REQUEST
-		}
-	}
-
-	//response：根据状态码来确认事件
-	status := m.StartLine.Code
-	if status >= 100 && status < 200 {
-		return RCV_STATUS_1XX
-	}
-
-	if status >= 200 && status < 300 {
-		return RCV_STATUS_2XX
-	}
-	if status >= 300 {
-		return RCV_STATUS_3456XX
-	}
-
-	return UNKNOWN_EVT
-}
-
-//根据发出的响应的消息的状态码，获取事件
-func getOutGoingMessageEvent(m *sip.Message) Event {
-	//request:get event by method
-	if m.IsRequest() {
-		method := m.GetMethod()
-		if method == sip.INVITE {
-			return SND_REQINVITE
-		} else if method == sip.ACK {
-			return SND_REQACK
-		} else {
-			return SND_REQUEST
-		}
-	}
-
-	//response:get event by status
-	status := m.StartLine.Code
-	if status >= 100 && status < 200 {
-		return SND_STATUS_1XX
-	}
-
-	if status >= 200 && status < 300 {
-		return SND_STATUS_2XX
-	}
-	if status >= 300 {
-		return SND_STATUS_3456XX
-	}
-
-	return UNKNOWN_EVT
-}
-
-func checkMessage(msg *sip.Message) error {
-	//TODO:sip消息解析成功之后，检查必要元素，如果失败，则返回 ErrorCheckMessage
-
-	//检查头域字段：callID  via  startline 等
-	//检查seq、method等
-	//不可以有router？
-	//是否根据消息是接收还是发送检查？
-	if msg == nil {
-		return ErrorCheck
-	}
-	return nil
-}
-
-//fix via header,add send-by info,
-func fixReceiveMessageViaParams(msg *sip.Message, addr net.Addr) {
-	rport := msg.Via.Params["rport"]
-	if rport == "" || rport == "0" || rport == "-1" {
-		arr := strings.Split(addr.String(), ":")
-		if len(arr) == 2 {
-			msg.Via.Params["rport"] = arr[1]
-			if msg.Via.Host != arr[0] {
-				msg.Via.Params["received"] = arr[0]
-			}
-		} else {
-			//TODO：数据报的地址错误？？
-			fmt.Println("packet handle > invalid addr :", addr.String())
-		}
-	} else {
-		fmt.Println("sip message has have send-by info:", msg.Via.GetSendBy())
-	}
-}

transport/README.md

@@ -1,18 +0,0 @@
-
-#### 介绍
-
-transport 包括客户端和服务器端，仅实现tcp和udp的传输层，不负责具体消息的解析和处理。不负责粘包、半包、消息解析、心跳处理、状态管理等工作。
-
-比如设备关闭或者离线，要修改缓存状态、数据库状态、发送离线通知、执行离线回调等等，都在上层处理。tcp server 和 udp server、tcp client 和 udp client ， 消息的接收和发送都在外面处理。
-
-tcp是流传输，需要注意粘包和半包的处理。在上层处理tcp包的时候，可以尝试使用 ring buffer
-
-
-#### usage
-
-参考 example.go
-
-#### TODO
-
-- sip协议的传输层，TCP和UDP有所不同，比如重传以及超时的错误信息等。所以需要在 transaction上面，处理消息重传、错误上报等。具体参考RFC3261。
-

transport/example.go

@@ -1,94 +0,0 @@
-package transport
-
-import (
-	"fmt"
-	"github.com/Monibuca/plugin-gb28181/v3/utils"
-	"os"
-	"time"
-)
-
-//默认端口：TCP/UDP是5060，5061是在TCP上的TLS
-//对于服务器监听UDP的任何端口和界面，都必须在TCP上也进行同样的监听。这是因为可能消息还需要通过TCP进行传输，比如消息过大的情况。
-const SipHost string = "127.0.0.1"
-const SipPort uint16 = 5060
-
-func RunServerTCP() {
-	tcp := NewTCPServer(SipPort, true)
-	go PacketHandler(tcp)
-	go func() {
-		_ = tcp.Start()
-	}()
-
-	select {}
-}
-
-//测试通讯，客户端先发一条消息
-func RunClientTCP() {
-	c := NewTCPClient(SipHost, SipPort)
-	go PacketHandler(c)
-	go func() {
-		_ = c.Start()
-	}()
-
-	//发送测试数据
-	fmt.Println("send test data")
-	go func() {
-		for {
-			c.WritePacket(&Packet{Data: []byte("from client : " + time.Now().String())})
-			time.Sleep(2 * time.Second)
-		}
-	}()
-	select {}
-}
-func PacketHandler(s ITransport) {
-	defer func() {
-		if err := recover(); err != nil {
-			fmt.Println("packet handler panic: ", err)
-			utils.PrintStack()
-			os.Exit(1)
-		}
-	}()
-
-	fmt.Println("PacketHandler ========== ", s.Name())
-
-	ch := s.ReadPacketChan()
-	//阻塞读取消息
-	for {
-		select {
-		case p := <-ch:
-			fmt.Println("packet content:", string(p.Data))
-			//TODO:message parse
-		}
-	}
-}
-
-//======================================================================
-
-func RunServerUDP() {
-	udp := NewUDPServer(SipPort)
-
-	go PacketHandler(udp)
-	go func() {
-		_ = udp.Start()
-	}()
-
-	select {}
-}
-
-func RunClientUDP() {
-	c := NewUDPClient(SipHost, SipPort)
-	go PacketHandler(c)
-	go func() {
-		_ = c.Start()
-	}()
-	//发送测试数据
-	go func() {
-		for {
-			time.Sleep(1 * time.Second)
-			c.WritePacket(&Packet{
-				Data: []byte("hello " + time.Now().String())})
-		}
-	}()
-
-	select {}
-}

transport/tcp_client.go

@@ -1,115 +0,0 @@
-package transport
-
-import (
-	"fmt"
-	"net"
-)
-
-type TCPClient struct {
-	Statistic
-	host       string
-	port       uint16
-	conn       net.Conn
-	readChan   chan *Packet
-	writeChan  chan *Packet
-	remoteAddr net.Addr
-	localAddr  net.Addr
-	done       chan struct{}
-}
-
-func NewTCPClient(host string, port uint16) IClient {
-	return &TCPClient{
-		host:      host,
-		port:      port,
-		readChan:  make(chan *Packet, 10),
-		writeChan: make(chan *Packet, 10),
-		done:      make(chan struct{}),
-	}
-}
-
-func (c *TCPClient) IsReliable() bool {
-	return true
-}
-
-func (c *TCPClient) Name() string {
-	return fmt.Sprintf("tcp client to:%s", fmt.Sprintf("%s:%d", c.host, c.port))
-}
-
-func (c *TCPClient) LocalAddr() net.Addr {
-	return c.localAddr
-}
-
-func (c *TCPClient) RemoteAddr() net.Addr {
-	return c.remoteAddr
-}
-
-func (c *TCPClient) Start() error {
-	conn, err := net.Dial("tcp", fmt.Sprintf("%s:%d", c.host, c.port))
-	if err != nil {
-		fmt.Println("dial tcp server failed :", err.Error())
-		return err
-	} else {
-		fmt.Println("start tcp client")
-	}
-
-	c.conn = conn
-	c.remoteAddr = conn.RemoteAddr()
-	c.localAddr = conn.LocalAddr()
-
-	//开启写线程
-	go func() {
-		for {
-			select {
-			case p := <-c.writeChan:
-				_, err := c.conn.Write(p.Data)
-				if err != nil {
-					fmt.Println("client write failed:", err.Error())
-					_ = c.Close()
-					return
-				}
-			case <-c.done:
-				return
-			}
-		}
-	}()
-
-	fmt.Println("start tcp client")
-	fmt.Printf("remote addr: %s, local addr: %s\n", conn.RemoteAddr().String(), conn.LocalAddr().String())
-
-	//读线程，阻塞
-	for {
-		buf := make([]byte, 2048)
-		n, err := conn.Read(buf)
-		if err != nil {
-			fmt.Println("tcp client read error:", err.Error())
-			return err
-		}
-		c.readChan <- &Packet{
-			Addr: c.remoteAddr,
-			Data: buf[:n],
-		}
-	}
-}
-
-func (c *TCPClient) ReadPacketChan() <-chan *Packet {
-	return c.readChan
-}
-
-func (c *TCPClient) WritePacket(packet *Packet) {
-	c.writeChan <- packet
-}
-
-func (c *TCPClient) Close() error {
-	close(c.done)
-	return c.conn.Close()
-}
-
-//外部定期调用此接口，实现心跳
-func (c *TCPClient) Heartbeat(p *Packet) {
-	if p == nil {
-		p = &Packet{
-			Data: []byte("ping"),
-		}
-	}
-	c.WritePacket(p)
-}

transport/tcp_server.go

@@ -1,174 +0,0 @@
-package transport
-
-import (
-	"fmt"
-	"io"
-	"net"
-	"sync"
-	"time"
-)
-
-type TCPServer struct {
-	Statistic
-	addr      string
-	listener  net.Listener
-	readChan  chan *Packet
-	writeChan chan *Packet
-	done      chan struct{}
-	Keepalive bool
-	sessions  sync.Map //key 是 remote-addr , value:*Connection。
-}
-
-func NewTCPServer(port uint16, keepalive bool) IServer {
-	tcpAddr := fmt.Sprintf(":%d", port)
-
-	return &TCPServer{
-		addr:      tcpAddr,
-		Keepalive: keepalive,
-		readChan:  make(chan *Packet, 10),
-		writeChan: make(chan *Packet, 10),
-		done:      make(chan struct{}),
-	}
-}
-
-func (s *TCPServer) IsReliable() bool {
-	return true
-}
-
-func (s *TCPServer) Name() string {
-	return fmt.Sprintf("tcp server at:%s", s.addr)
-}
-func (s *TCPServer) IsKeepalive() bool {
-	return s.Keepalive
-}
-
-func (s *TCPServer) Start() error {
-	//监听端口
-	//开启tcp连接线程
-	var err error
-	s.listener, err = net.Listen("tcp", s.addr)
-	//s.listener, err = tls.Listen("tcp", s.tcpAddr, tlsConfig)
-	if err != nil {
-		fmt.Println("TCP Listen failed:", err)
-		return err
-	}
-	defer s.listener.Close()
-
-	fmt.Println("start tcp server at: ", s.addr)
-
-	//心跳线程
-	if s.Keepalive {
-		//TODO:start heartbeat thread
-	}
-	//写线程
-	go func() {
-		for {
-			select {
-			case p := <-s.writeChan:
-				val, ok := s.sessions.Load(p.Addr.String())
-				if !ok {
-					return
-				}
-				c := val.(*Connection)
-				_, _ = c.Conn.Write(p.Data)
-			case <-s.done:
-				return
-			}
-
-		}
-	}()
-
-	//读线程
-	for {
-		conn, err := s.listener.Accept()
-		if err != nil {
-			var tempDelay time.Duration // how long to sleep on accept failure
-			fmt.Println("accept err :", err.Error())
-			//  重连。参考http server
-			if ne, ok := err.(net.Error); ok && ne.Temporary() {
-				if tempDelay == 0 {
-					tempDelay = 5 * time.Millisecond
-				} else {
-					tempDelay *= 2
-				}
-
-				if max := 1 * time.Second; tempDelay > max {
-					tempDelay = max
-				}
-
-				time.Sleep(tempDelay)
-				continue
-			}
-			fmt.Println("accept error, retry failed & exit.")
-			return err
-		}
-
-		// conn.SetReadDeadline(time.Now().Add(600 * time.Second))
-		session := &Connection{Conn: conn, Addr: conn.RemoteAddr()}
-		address := session.Addr.String()
-		s.sessions.Store(address, session)
-
-		fmt.Println(fmt.Sprintf("new tcp client remoteAddr: %v", address))
-		go s.handlerSession(session)
-	}
-}
-
-func (s *TCPServer) handlerSession(c *Connection) {
-	addrStr := c.Addr.String()
-
-	//recovery from panic
-	defer func() {
-		s.CloseOne(addrStr)
-		if err := recover(); err != nil {
-			fmt.Println("client receiver handler panic: ", err)
-		}
-	}()
-
-	buf := make([]byte, 2048)
-	for {
-		n, err := c.Conn.Read(buf)
-		switch {
-		case err == nil:
-			p := &Packet{
-				Addr: c.Addr,
-				Data: buf[:n],
-			}
-			s.readChan <- p
-		case err == io.EOF:
-			fmt.Println(fmt.Sprintf("io.EOF,client close --- remoteAddr: %v", c.Addr))
-			return
-		case err != nil:
-			fmt.Println("client other err: ", err)
-			fmt.Println(fmt.Sprintf("client other err ---  remoteAddr: %v", addrStr))
-			return
-		}
-	}
-}
-
-func (s *TCPServer) CloseOne(addr string) {
-	val, ok := s.sessions.Load(addr)
-	if !ok {
-		return
-	}
-	c := val.(*Connection)
-	_ = c.Conn.Close()
-	s.sessions.Delete(addr)
-}
-
-func (s *TCPServer) ReadPacketChan() <-chan *Packet {
-	return s.readChan
-}
-func (s *TCPServer) WritePacket(packet *Packet) {
-	s.writeChan <- packet
-}
-
-func (s *TCPServer) Close() error {
-	//TODO：TCP服务退出之前，需要先close掉所有客户端的连接
-	s.sessions.Range(func(key, value interface{}) bool {
-		c := value.(*Connection)
-		_ = c.Conn.Close()
-		s.sessions.Delete(key)
-		return true
-	})
-	return nil
-}

transport/transport.go

@@ -1,70 +0,0 @@
-package transport
-
-import (
-	"net"
-	"time"
-)
-
-/*
-transport层仅实现数据的读写，连接的关闭
-
-TCP和UDP的区别
-
-- TCP面向链接，在服务关闭的时候，要先close掉所有客户端连接。所以使用一个map简单做session管理，key 是 remote address。
-- udp不需要管理session。
-*/
-
-//transport server and client interface
-//对于面向连接的服务，需要有两个关闭接口：Close and CloseOne
-//非面向连接的服务，不必实现
-//TODO：心跳管理，使用timewheel
-
-type ITransport interface {
-	Name() string
-	ReadPacketChan() <-chan *Packet //读消息，消息处理器需在循环中阻塞读取
-	WritePacket(packet *Packet)     //写消息
-	Start() error                   //开启连接，阻塞接收消息
-	Close() error                   //关闭连接
-	IsReliable() bool               //是否可靠传输
-}
-
-type IServer interface {
-	ITransport
-	CloseOne(addr string) //对于关闭某个客户端连接，比如没有鉴权的非法链接，心跳超时等
-	IsKeepalive() bool    //persistent connection or not
-}
-
-//transport 需要实现的接口如下
-type IClient interface {
-	ITransport
-	LocalAddr() net.Addr      //本地地址
-	RemoteAddr() net.Addr     //远程地址
-	Heartbeat(packet *Packet) //客户端需要定期发送心跳包到服务器端
-}
-
-type Packet struct {
-	Type string //消息类型，预留字段，对于客户端主动关闭等消息的上报、心跳超时等。如果为空，则仅透传消息。
-	Addr net.Addr
-	Data []byte
-}
-
-//对于面向连接的（UDP或者TCP都可以面向连接，维持心跳即可），必须有session
-type Connection struct {
-	Addr           net.Addr
-	Conn           net.Conn
-	Online         bool
-	ReconnectCount int64 //重连次数
-}
-
-func (s *Connection) Close() {
-	//TODO：处理session的关闭，修改缓存状态、数据库状态、发送离线通知、执行离线回调等等
-}
-
-//通讯统计
-type Statistic struct {
-	startTime time.Time
-	stopTime  time.Time
-	recvCount int64
-	sendCount int64
-	errCount  int64
-}

transport/udp_client.go

@@ -1,119 +0,0 @@
-package transport
-
-import (
-	"fmt"
-	"net"
-	"os"
-)
-
-type UDPClient struct {
-	Statistic
-	host       string
-	port       uint16
-	conn       *net.UDPConn
-	readChan   chan *Packet
-	writeChan  chan *Packet
-	done       chan struct{}
-	remoteAddr net.Addr
-	localAddr  net.Addr
-}
-
-func NewUDPClient(host string, port uint16) IClient {
-	return &UDPClient{
-		host:      host,
-		port:      port,
-		readChan:  make(chan *Packet, 10),
-		writeChan: make(chan *Packet, 10),
-		done:      make(chan struct{}),
-	}
-}
-
-func (c *UDPClient) IsReliable() bool {
-	return false
-}
-
-func (c *UDPClient) Name() string {
-	return fmt.Sprintf("udp client to:%s", fmt.Sprintf("%s:%d", c.host, c.port))
-}
-func (c *UDPClient) LocalAddr() net.Addr {
-	return c.localAddr
-}
-
-func (c *UDPClient) RemoteAddr() net.Addr {
-	return c.remoteAddr
-}
-
-func (c *UDPClient) Start() error {
-	addrStr := fmt.Sprintf("%s:%d", c.host, c.port)
-	addr, err := net.ResolveUDPAddr("udp", addrStr)
-	if err != nil {
-		fmt.Println("Can't resolve address: ", err)
-		os.Exit(1)
-	}
-
-	conn, err := net.DialUDP("udp", nil, addr)
-	if err != nil {
-		fmt.Println("Can't dial: ", err)
-		os.Exit(1)
-	}
-	defer conn.Close()
-
-	c.remoteAddr = conn.RemoteAddr()
-	c.localAddr = conn.LocalAddr()
-
-	fmt.Println("udp client remote addr:", conn.RemoteAddr().String())
-	fmt.Println("udp client local addr:", conn.LocalAddr().String())
-
-	//写线程
-	go func() {
-		for {
-			select {
-			case p := <-c.writeChan:
-				_, err = conn.Write(p.Data)
-				if err != nil {
-					fmt.Println("udp client write failed:", err.Error())
-					continue
-				}
-			case <-c.done:
-				return
-			}
-		}
-	}()
-
-	for {
-		buf := make([]byte, 4096)
-		n, err := conn.Read(buf)
-		if err != nil {
-			fmt.Println("failed to read UDP msg because of ", err)
-			os.Exit(1)
-		}
-
-		c.readChan <- &Packet{
-			Addr: c.remoteAddr,
-			Data: buf[:n],
-		}
-	}
-}
-
-func (c *UDPClient) ReadPacketChan() <-chan *Packet {
-	return c.readChan
-}
-
-func (c *UDPClient) WritePacket(packet *Packet) {
-	c.writeChan <- packet
-}
-
-func (c *UDPClient) Close() error {
-	close(c.done)
-	return c.conn.Close()
-}
-
-//外部定期调用此接口，实现心跳
-func (c *UDPClient) Heartbeat(p *Packet) {
-	if p == nil {
-		p = &Packet{
-			Data: []byte("ping"),
-		}
-	}
-	c.WritePacket(p)
-}

transport/udp_server.go

@@ -1,106 +0,0 @@
-package transport
-
-import (
-	"fmt"
-	"net"
-	"os"
-)
-
-type UDPServer struct {
-	Statistic
-	addr      string
-	Conn      *net.UDPConn
-	ReadChan  chan *Packet
-	WriteChan chan *Packet
-	done      chan struct{}
-	Keepalive bool
-	//Sessions  sync.Map // key is remote-addr的string , value:*Connection。UDP不需要
-}
-
-func NewUDPServer(port uint16) IServer {
-	addrStr := fmt.Sprintf(":%d", port)
-
-	return &UDPServer{
-		addr:      addrStr,
-		ReadChan:  make(chan *Packet, 10),
-		WriteChan: make(chan *Packet, 10),
-		done:      make(chan struct{}),
-	}
-}
-
-func (s *UDPServer) IsReliable() bool {
-	return false
-}
-
-func (s *UDPServer) Name() string {
-	return fmt.Sprintf("udp client to:%s", s.addr)
-}
-
-func (s *UDPServer) IsKeepalive() bool {
-	return s.Keepalive
-}
-
-func (s *UDPServer) Start() error {
-	addr, err := net.ResolveUDPAddr("udp", s.addr)
-	if err != nil {
-		fmt.Println("Can't resolve address: ", err)
-		return err
-	}
-
-	conn, err := net.ListenUDP("udp", addr)
-	if err != nil {
-		fmt.Println("Error listenUDP :", err)
-		os.Exit(1)
-	}
-	defer func() {
-		_ = conn.Close()
-	}()
-
-	s.Conn = conn
-
-	fmt.Println("start udp server at: ", s.addr)
-
-	//心跳线程
-	if s.Keepalive {
-		//TODO:start heartbeat thread
-	}
-	//写线程
-	go func() {
-		for {
-			select {
-			case p := <-s.WriteChan:
-				_, _ = s.Conn.WriteTo(p.Data, p.Addr)
-			case <-s.done:
-				return
-			}
-		}
-	}()
-
-	//读线程
-	for {
-		data := make([]byte, 4096)
-		n, remoteAddr, err := conn.ReadFromUDP(data)
-		if err != nil {
-			fmt.Println("failed to read UDP msg because of ", err.Error())
-			continue
-		}
-		s.ReadChan <- &Packet{
-			Addr: remoteAddr,
-			Data: data[:n],
-		}
-	}
-}
-func (s *UDPServer) ReadPacketChan() <-chan *Packet {
-	return s.ReadChan
-}
-func (s *UDPServer) WritePacket(packet *Packet) {
-	s.WriteChan <- packet
-}
-
-func (s *UDPServer) Close() error {
-	//所有session离线和关闭处理
-	return nil
-}
-func (s *UDPServer) CloseOne(addr string) {
-	//处理某设备离线
-}

tu/README.md

@@ -1,24 +0,0 @@
-
-Transaction User(TU)事务用户：在transaction 层之上的协议层。TU包括了UAC core、UAS core,和proxy core。
-tu处理业务逻辑，并对事物层进行操作。
-
-#### 类型
-
-SIP服务器典型有以下几类:
-
-a. 注册服务器 -即只管Register消息,这里相当于location也在这里了
-
-b. 重定向服务器 -给ua回一条302后,转给其它的服务器,这样保证全系统统一接入
-
-c. 代理服务器 -只做proxy,即对SIP消息转发
-
-d. 媒体服务器-只做rtp包相关处理,即media server
-
-e. B2BUA - 这个里包实际一般是可以含以上几种服务器类型
-
-暂时仅处理gb28181 相关
-
-#### TU
-
-tu负责根据应用层需求，发起操作。
-比如注册到sip服务器、发起会话、取消会话等。

tu/client.go

@@ -1,92 +0,0 @@
-package tu
-
-import (
-	"fmt"
-	"github.com/Monibuca/plugin-gb28181/v3/transaction"
-)
-
-//sip server和client的配置，可以得到sip URI：sip
-//格式：user:password@host:port;uri-parameters?headers
-//在这些URI里边包含了足够的信息来发起和维持到这个资源的一个通讯会话。
-//client静态配置
-type ClientStatic struct {
-	LocalIP   string //设备本地IP
-	LocalPort uint16 //客户端SIP端口
-	Username  string //SIP用户名，一般是取通道ID，默认 34020000001320000001
-	AuthID    string //SIP用户认证ID，一般是通道ID， 默认 34020000001320000001
-	Password  string //密码
-}
-
-//client运行时信息
-type ClientRuntime struct {
-	RemoteAddress string //设备的公网的IP和端口，格式x.x.x.x:x
-	Online        bool   //在线状态
-	Branch        string //branch
-	Cseq          int    //消息序列号，发送消息递增, uint32
-	FromTag       string //from tag
-	ToTag         string //to tag
-	Received      string //remote ip
-	Rport         string //remote port
-}
-
-type Client struct {
-	*transaction.Core                //transaction manager
-	static            *ClientStatic  //静态配置
-	runtime           *ClientRuntime //运行时信息
-}
-
-//config:sip信令服务器配置
-//static:sip客户端配置
-func NewClient(config *transaction.Config, static *ClientStatic) *Client {
-	return &Client{
-		Core:    transaction.NewCore(config),
-		static:  static,
-		runtime: &ClientRuntime{},
-	}
-}
-
-//TODO：对于一个TU，开启之后
-//运行一个sip client
-func RunClient() {
-	config := &transaction.Config{
-		SipIP:      "192.168.1.102",
-		SipPort:    5060,
-		SipNetwork: "UDP",
-		Serial:     "34020000002000000001",
-		Realm:      "3402000000",
-		AckTimeout: 10,
-
-		RegisterValidity:  3600,
-		RegisterInterval:  60,
-		HeartbeatInterval: 60,
-		HeartbeatRetry:    3,
-
-		AudioEnable:      true,
-		WaitKeyFrame:     true,
-		MediaPortMin:     58200,
-		MediaPortMax:     58300,
-		MediaIdleTimeout: 30,
-	}
-	static := &ClientStatic{
-		LocalIP:   "192.168.1.65",
-		LocalPort: 5060,
-		Username:  "34020000001320000001",
-		AuthID:    "34020000001320000001",
-		Password:  "123456",
-	}
-	c := NewClient(config, static)
-
-	go c.Start()
-
-	//TODO：先发起注册
-	//TODO:build sip message
-	msg := BuildMessageRequest("", "", "", "", "", "",
-		0, 0, 0, "")
-	resp := c.SendMessage(msg)
-	if resp.Code != 0 {
-		fmt.Println("request failed")
-	}
-	fmt.Println("response: ", resp.Data)
-
-	select {}
-}

tu/common.go

@@ -1,75 +0,0 @@
-package tu
-
-import (
-	"fmt"
-	"github.com/Monibuca/plugin-gb28181/v3/sip"
-	"github.com/Monibuca/plugin-gb28181/v3/utils"
-)
-
-//根据参数构建各种消息
-//参数来自于session/transaction等会话管理器
-/*
-method:请求方法
-transport：UDP/TCP
-sipSerial: sip server ID
-sipRealm: sip domain
-username: 用户名/设备序列号
-srcIP： 源IP
-srcPort：源端口
-expires: 过期时间
-cseq：消息序列号，当前对话递增
-*/
-//构建消息：以客户端（可能是IPC，也可能是SIP Server）的角度
-func BuildMessageRequest(method sip.Method, transport, sipSerial, sipRealm, username, srcIP string, srcPort uint16, expires, cseq int, body string) *sip.Message {
-	server := fmt.Sprintf("%s@%s", sipSerial, sipRealm)
-	client := fmt.Sprintf("%s@%s", username, sipRealm)
-
-	msg := &sip.Message{
-		Mode:          sip.SIP_MESSAGE_REQUEST,
-		MaxForwards:   70,
-		UserAgent:     "IPC",
-		Expires:       expires,
-		ContentLength: 0,
-	}
-	msg.StartLine = &sip.StartLine{
-		Method: method,
-		Uri:    sip.NewURI(server),
-	}
-	msg.Via = &sip.Via{
-		Transport: transport,
-		Host:      client,
-	}
-	msg.Via.Params = map[string]string{
-		"branch": randBranch(),
-		"rport":  "-1", //only key,no-value
-	}
-	msg.From = &sip.Contact{
-		Uri:    sip.NewURI(client),
-		Params: nil,
-	}
-	msg.From.Params = map[string]string{
-		"tag": utils.RandNumString(10),
-	}
-	msg.To = &sip.Contact{
-		Uri: sip.NewURI(client),
-	}
-	msg.CallID = utils.RandNumString(8)
-	msg.CSeq = &sip.CSeq{
-		ID:     uint32(cseq),
-		Method: method,
-	}
-
-	msg.Contact = &sip.Contact{
-		Uri: sip.NewURI(fmt.Sprintf("%s@%s:%d", username, srcIP, srcPort)),
-	}
-	if len(body) > 0 {
-		msg.ContentLength = len(body)
-		msg.Body = body
-	}
-	return msg
-}
-
-//z9hG4bK + 10个随机数字
-func randBranch() string {
-	return fmt.Sprintf("z9hG4bK%s", utils.RandNumString(8))
-}

tu/server.go

@@ -1,49 +0,0 @@
-package tu
-
-import (
-	"sync"
-
-	"github.com/Monibuca/plugin-gb28181/v3/transaction"
-)
-
-//TODO:参考http服务，使用者仅需要根据需要实现某些handler，替换某些header fileds or body信息。其他的处理都由库来实现。
-type Server struct {
-	*transaction.Core          //SIP transaction manager
-	registers         sync.Map //管理所有已经注册的设备端
-	//routers:TODO:消息路由，应用层可以处理消息体，或者针对某些消息的callback
-}
-
-//提供config参数
-func NewServer(config *transaction.Config) *Server {
-	return &Server{
-		Core: transaction.NewCore(config),
-	}
-}
-
-//运行一个sip server
-func RunServer() {
-	config := &transaction.Config{
-		SipIP:      "192.168.1.102",
-		SipPort:    5060,
-		SipNetwork: "UDP",
-		Serial:     "34020000002000000001",
-		Realm:      "3402000000",
-		AckTimeout: 10,
-
-		RegisterValidity:  3600,
-		RegisterInterval:  60,
-		HeartbeatInterval: 60,
-		HeartbeatRetry:    3,
-
-		AudioEnable:      true,
-		WaitKeyFrame:     true,
-		MediaPortMin:     58200,
-		MediaPortMax:     58300,
-		MediaIdleTimeout: 30,
-	}
-	s := NewServer(config)
-
-	s.Start()
-
-	select {}
-}

utils/buffer.go

@@ -1,39 +1,100 @@
 package utils
 
 import (
-	"bytes"
 	"encoding/binary"
 	"errors"
+	"io"
 )
 
-var ErrEOF = errors.New("eof")
-
 type IOBuffer struct {
-	bytes.Buffer
+	buf []byte // contents are the bytes buf[off : len(buf)]
+	off int    // read at &buf[off], write at &buf[len(buf)]
 }
 
-func (r *IOBuffer) Uint16() (uint16, error) {
-	if r.Len() > 1 {
-		return binary.BigEndian.Uint16(r.Next(2)), nil
+func (b *IOBuffer) Next(n int) []byte {
+	m := b.Len()
+	if n > m {
+		n = m
 	}
-	return 0, ErrEOF
+	data := b.buf[b.off : b.off+n]
+	b.off += n
+	return data
+}
+func (b *IOBuffer) Uint16() (uint16, error) {
+	if b.Len() > 1 {
+
+		return binary.BigEndian.Uint16(b.Next(2)), nil
+	}
+	return 0, io.EOF
 }
 
-func (r *IOBuffer) Skip(n int) (err error) {
-	_, err = r.ReadN(n)
+func (b *IOBuffer) Skip(n int) (err error) {
+	_, err = b.ReadN(n)
 	return
 }
 
-func (r *IOBuffer) Uint32() (uint32, error) {
-	if r.Len() > 3 {
-		return binary.BigEndian.Uint32(r.Next(4)), nil
+func (b *IOBuffer) Uint32() (uint32, error) {
+	if b.Len() > 3 {
+		return binary.BigEndian.Uint32(b.Next(4)), nil
 	}
-	return 0, ErrEOF
+	return 0, io.EOF
 }
 
-func (r *IOBuffer) ReadN(length int) ([]byte, error) {
-	if r.Len() >= length {
-		return r.Next(length), nil
+func (b *IOBuffer) ReadN(length int) ([]byte, error) {
+	if b.Len() >= length {
+		return b.Next(length), nil
 	}
-	return nil, ErrEOF
+	return nil, io.EOF
+}
+
+// empty reports whether the unread portion of the buffer is empty.
+func (b *IOBuffer) empty() bool { return b.Len() <= b.off }
+
+func (b *IOBuffer) ReadByte() (byte, error) {
+	if b.empty() {
+		// Buffer is empty, reset to recover space.
+		b.Reset()
+		return 0, io.EOF
+	}
+	c := b.buf[b.off]
+	b.off++
+	return c, nil
+}
+func (b *IOBuffer) Reset() {
+	b.buf = b.buf[:0]
+	b.off = 0
+}
+
+func (b *IOBuffer) Len() int { return len(b.buf) - b.off }
+
+// tryGrowByReslice is a inlineable version of grow for the fast-case where the
+// internal buffer only needs to be resliced.
+// It returns the index where bytes should be written and whether it succeeded.
+func (b *IOBuffer) tryGrowByReslice(n int) (int, bool) {
+	if l := len(b.buf); n <= cap(b.buf)-l {
+		b.buf = b.buf[:l+n]
+		return l, true
+	}
+	return 0, false
+}
+
+var ErrTooLarge = errors.New("IOBuffer: too large")
+
+func (b *IOBuffer) Write(p []byte) (n int, err error) {
+	defer func() {
+		if recover() != nil {
+			panic(ErrTooLarge)
+		}
+	}()
+	l := len(p)
+	oldLen := len(b.buf)
+	m, ok := b.tryGrowByReslice(l)
+	if !ok {
+		buf := make([]byte, oldLen+l)
+		copy(buf, b.buf[b.off:])
+		m = oldLen - b.off
+		b.off = 0
+		b.buf = buf
+	}
+	return copy(b.buf[m:], p), nil
 }

utils/bufferpool.go

@@ -0,0 +1,150 @@
+package utils
+
+import (
+	"bytes"
+	"sort"
+	"sync"
+	"sync/atomic"
+)
+
+const (
+	minBitSize = 6 // 2**6=64 is a CPU cache line size
+	steps      = 20
+
+	minSize = 1 << minBitSize
+	maxSize = 1 << (minBitSize + steps - 1)
+
+	calibrateCallsThreshold = 42000
+	maxPercentile           = 0.95
+)
+
+// Pool represents byte buffer pool.
+//
+// Distinct pools may be used for distinct types of byte buffers.
+// Properly determined byte buffer types with their own pools may help reducing
+// memory waste.
+type Pool struct {
+	calls       [steps]uint64
+	calibrating uint64
+
+	defaultSize uint64
+	maxSize     uint64
+
+	pool sync.Pool
+}
+
+var defaultPool Pool
+
+// Get returns an empty byte buffer from the pool.
+//
+// Got byte buffer may be returned to the pool via Put call.
+// This reduces the number of memory allocations required for byte buffer
+// management.
+func Get() *bytes.Buffer { return defaultPool.Get() }
+
+// Get returns new byte buffer with zero length.
+//
+// The byte buffer may be returned to the pool via Put after the use
+// in order to minimize GC overhead.
+func (p *Pool) Get() *bytes.Buffer {
+	v := p.pool.Get()
+	if v != nil {
+		return v.(*bytes.Buffer)
+	}
+	return bytes.NewBuffer(make([]byte, 0, atomic.LoadUint64(&p.defaultSize)))
+}
+
+// Put returns byte buffer to the pool.
+//
+// bytes.Buffer.B mustn't be touched after returning it to the pool.
+// Otherwise data races will occur.
+func Put(b *bytes.Buffer) { b.Reset(); defaultPool.Put(b) }
+
+// Put releases byte buffer obtained via Get to the pool.
+//
+// The buffer mustn't be accessed after returning to the pool.
+func (p *Pool) Put(b *bytes.Buffer) {
+	idx := index(b.Len())
+
+	if atomic.AddUint64(&p.calls[idx], 1) > calibrateCallsThreshold {
+		p.calibrate()
+	}
+
+	maxSize := int(atomic.LoadUint64(&p.maxSize))
+	if maxSize == 0 || b.Cap() <= maxSize {
+		b.Reset()
+		p.pool.Put(b)
+	}
+}
+
+func (p *Pool) calibrate() {
+	if !atomic.CompareAndSwapUint64(&p.calibrating, 0, 1) {
+		return
+	}
+
+	a := make(callSizes, 0, steps)
+	var callsSum uint64
+	for i := uint64(0); i < steps; i++ {
+		calls := atomic.SwapUint64(&p.calls[i], 0)
+		callsSum += calls
+		a = append(a, callSize{
+			calls: calls,
+			size:  minSize << i,
+		})
+	}
+	sort.Sort(a)
+
+	defaultSize := a[0].size
+	maxSize := defaultSize
+
+	maxSum := uint64(float64(callsSum) * maxPercentile)
+	callsSum = 0
+	for i := 0; i < steps; i++ {
+		if callsSum > maxSum {
+			break
+		}
+		callsSum += a[i].calls
+		size := a[i].size
+		if size > maxSize {
+			maxSize = size
+		}
+	}
+
+	atomic.StoreUint64(&p.defaultSize, defaultSize)
+	atomic.StoreUint64(&p.maxSize, maxSize)
+
+	atomic.StoreUint64(&p.calibrating, 0)
+}
+
+type callSize struct {
+	calls uint64
+	size  uint64
+}
+
+type callSizes []callSize
+
+func (ci callSizes) Len() int {
+	return len(ci)
+}
+
+func (ci callSizes) Less(i, j int) bool {
+	return ci[i].calls > ci[j].calls
+}
+
+func (ci callSizes) Swap(i, j int) {
+	ci[i], ci[j] = ci[j], ci[i]
+}
+
+func index(n int) int {
+	n--
+	n >>= minBitSize
+	idx := 0
+	for n > 0 {
+		n >>= 1
+		idx++
+	}
+	if idx >= steps {
+		idx = steps - 1
+	}
+	return idx
+}

utils/log.go

@@ -0,0 +1,158 @@
+package utils
+
+import (
+	"encoding/json"
+
+	"github.com/ghettovoice/gosip/log"
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+)
+
+type ZapLogger struct {
+	log     *zap.Logger
+	prefix  string
+	fields  log.Fields
+	sugared *zap.SugaredLogger
+	level   log.Level
+}
+
+func NewZapLogger(log *zap.Logger, prefix string, fields log.Fields) (z *ZapLogger) {
+	z = &ZapLogger{
+		log:    log,
+		prefix: prefix,
+		fields: fields,
+	}
+	z.sugared = z.prepareEntry()
+	return
+}
+
+func (l *ZapLogger) Print(args ...interface{}) {
+	if l.level >= log.InfoLevel {
+		l.sugared.Info(args...)
+	}
+}
+
+func (l *ZapLogger) Printf(format string, args ...interface{}) {
+	if l.level >= log.InfoLevel {
+		l.sugared.Infof(format, args...)
+	}
+}
+
+func (l *ZapLogger) Trace(args ...interface{}) {
+	if l.level >= log.TraceLevel {
+		l.sugared.Debug(args...)
+	}
+}
+
+func (l *ZapLogger) Tracef(format string, args ...interface{}) {
+	if l.level >= log.TraceLevel {
+		l.sugared.Debugf(format, args...)
+	}
+}
+
+func (l *ZapLogger) Debug(args ...interface{}) {
+	if l.level >= log.DebugLevel {
+		l.sugared.Debug(args...)
+	}
+}
+
+func (l *ZapLogger) Debugf(format string, args ...interface{}) {
+	if l.level >= log.DebugLevel {
+		l.sugared.Debugf(format, args...)
+	}
+}
+
+func (l *ZapLogger) Info(args ...interface{}) {
+	if l.level >= log.InfoLevel {
+		l.sugared.Info(args...)
+	}
+}
+
+func (l *ZapLogger) Infof(format string, args ...interface{}) {
+	if l.level >= log.InfoLevel {
+		l.sugared.Infof(format, args...)
+	}
+}
+
+func (l *ZapLogger) Warn(args ...interface{}) {
+	if l.level >= log.WarnLevel {
+		l.sugared.Warn(args...)
+	}
+}
+
+func (l *ZapLogger) Warnf(format string, args ...interface{}) {
+	if l.level >= log.WarnLevel {
+		l.sugared.Warnf(format, args...)
+	}
+}
+
+func (l *ZapLogger) Error(args ...interface{}) {
+	if l.level >= log.ErrorLevel {
+		l.sugared.Error(args...)
+	}
+}
+
+func (l *ZapLogger) Errorf(format string, args ...interface{}) {
+	if l.level >= log.ErrorLevel {
+		l.sugared.Errorf(format, args...)
+	}
+}
+
+func (l *ZapLogger) Fatal(args ...interface{}) {
+	if l.level >= log.FatalLevel {
+		l.sugared.Fatal(args...)
+	}
+}
+
+func (l *ZapLogger) Fatalf(format string, args ...interface{}) {
+	if l.level >= log.FatalLevel {
+		l.sugared.Fatalf(format, args...)
+	}
+}
+
+func (l *ZapLogger) Panic(args ...interface{}) {
+	if l.level >= log.PanicLevel {
+		l.sugared.Panic(args...)
+	}
+}
+
+func (l *ZapLogger) Panicf(format string, args ...interface{}) {
+	if l.level >= log.PanicLevel {
+		l.sugared.Panicf(format, args...)
+	}
+}
+
+func (l *ZapLogger) WithPrefix(prefix string) log.Logger {
+	return NewZapLogger(l.log, prefix, l.Fields())
+}
+
+func (l *ZapLogger) Prefix() string {
+	return l.prefix
+}
+
+func (l *ZapLogger) WithFields(fields log.Fields) log.Logger {
+	return NewZapLogger(l.log, l.Prefix(), l.Fields().WithFields(fields))
+}
+
+func (l *ZapLogger) Fields() log.Fields {
+	return l.fields
+}
+
+func (l *ZapLogger) prepareEntry() *zap.SugaredLogger {
+	newlog := l.log.With(zap.String("prefix", l.Prefix()))
+	if l.fields != nil {
+		fields := make([]zapcore.Field, len(l.fields))
+		idx := 0
+		for k, v := range l.fields {
+			s, _ := json.Marshal(v)
+			fields[idx] = zap.String(k, string(s))
+			idx++
+		}
+		newlog = newlog.With(fields...)
+	}
+	return newlog.Sugar()
+}
+
+func (l *ZapLogger) SetLevel(level log.Level) {
+	l.level = level
+}

utils/ps.go

@@ -1,9 +1,9 @@
 package utils
 
 import (
+	"encoding/binary"
 	"errors"
-
-	"github.com/Monibuca/utils/v3"
+	"fmt"
 )
 
 //
@@ -140,10 +140,10 @@ func (dec *DecPSPackage) ReadPayload() (payload []byte, err error) {
 	return dec.ReadN(int(payloadlen))
 }
 
+//read the buffer and push video or audio
 func (dec *DecPSPackage) Read(ts uint32, pusher Pusher) error {
-	var nextStartCode uint32
 	dec.clean()
-
+	dec.PTS = ts
 	if err := dec.Skip(9); err != nil {
 		return err
 	}
@@ -157,20 +157,11 @@ func (dec *DecPSPackage) Read(ts uint32, pusher Pusher) error {
 		return err
 	}
 	var video []byte
-	var videoTs, videoCts uint32
-	defer func() {
-		if video != nil {
-			pusher.PushVideo(videoTs, videoCts, video)
-			video = nil
-		}
-		if nextStartCode == StartCodePS {
-			err = dec.Read(ts, pusher)
-		}
-	}()
+	var nextStartCode uint32
+loop:
 	for err == nil {
-		nextStartCode, err = dec.Uint32()
-		if err != nil {
-			return err
+		if nextStartCode, err = dec.Uint32(); err != nil {
+			break
 		}
 		switch nextStartCode {
 		case StartCodeSYS:
@@ -179,41 +170,43 @@ func (dec *DecPSPackage) Read(ts uint32, pusher Pusher) error {
 		case StartCodeMAP:
 			err = dec.decProgramStreamMap()
 		case StartCodeVideo:
-			var cts uint32
 			if err = dec.decPESPacket(); err == nil {
-				if video == nil {
-					if dec.PTS == 0 {
-						dec.PTS = ts
-					}
-					if dec.DTS != 0 {
-						cts = dec.PTS - dec.DTS
-					} else {
-						dec.DTS = dec.PTS
-					}
-					videoTs = dec.DTS / 90
-					videoCts = cts / 90
-				}
+				// if len(video) == 0 {
+				// 	if dec.PTS == 0 {
+				// 		dec.PTS = ts
+				// 	}
+				// 	// if dec.DTS == 0 {
+				// 	// 	dec.DTS = dec.PTS
+				// 	// }
+				// }
 				video = append(video, dec.Payload...)
 			} else {
-				utils.Println("video", err)
+				fmt.Println("video", err)
 			}
 		case StartCodeAudio:
 			if err = dec.decPESPacket(); err == nil {
-				var payload []byte
-				ts := ts >> 3
+				ts := ts / 90
 				if dec.PTS != 0 {
-					ts = dec.PTS >> 3
+					ts = dec.PTS / 90
 				}
-				pusher.PushAudio(ts, append(payload, dec.Payload...))
+				pusher.PushAudio(ts, dec.Payload)
 			} else {
-				utils.Println("audio", err)
+				fmt.Println("audio", err)
 			}
 		case StartCodePS:
-			return nil
+			break loop
 		default:
 			dec.ReadPayload()
 		}
 	}
+	if len(video) > 0 {
+		pusher.PushVideo(dec.PTS, dec.DTS, video)
+		video = nil
+	}
+	if nextStartCode == StartCodePS {
+		// fmt.Println(aurora.Red("StartCodePS recursion..."), err)
+		return dec.Read(ts, pusher)
+	}
 	return err
 }
 
@@ -254,10 +247,10 @@ func (dec *DecPSPackage) decProgramStreamMap() error {
 	}
 	l := len(psm)
 	index := 2
-	programStreamInfoLen := utils.BigEndian.Uint16(psm[index:])
+	programStreamInfoLen := binary.BigEndian.Uint16(psm[index:])
 	index += 2
 	index += int(programStreamInfoLen)
-	programStreamMapLen := utils.BigEndian.Uint16(psm[index:])
+	programStreamMapLen := binary.BigEndian.Uint16(psm[index:])
 	index += 2
 	for programStreamMapLen > 0 {
 		if l <= index+1 {
@@ -275,7 +268,7 @@ func (dec *DecPSPackage) decProgramStreamMap() error {
 		if l <= index+1 {
 			break
 		}
-		elementaryStreamInfoLength := utils.BigEndian.Uint16(psm[index:])
+		elementaryStreamInfoLength := binary.BigEndian.Uint16(psm[index:])
 		index += 2
 		index += int(elementaryStreamInfoLength)
 		programStreamMapLen -= 4 + elementaryStreamInfoLength
@@ -305,16 +298,16 @@ func (dec *DecPSPackage) decPESPacket() error {
 		pts += uint32(extraData[2]&0b1111_1110) << 14
 		pts += uint32(extraData[3]) << 7
 		pts += uint32(extraData[4]) >> 1
+		dec.PTS = pts
 		if dtsFlag && len(extraData) > 9 {
 			dts = uint32(extraData[5]&0b0000_1110) << 29
 			dts += uint32(extraData[6]) << 22
 			dts += uint32(extraData[7]&0b1111_1110) << 14
 			dts += uint32(extraData[8]) << 7
 			dts += uint32(extraData[9]) >> 1
+			dec.DTS = dts
 		}
 	}
-	dec.PTS = pts
-	dec.DTS = dts
 	dec.Payload = payload[pesHeaderDataLen:]
 	return err
 }

utils/rtp_sort.go

@@ -0,0 +1,98 @@
+package utils
+
+import (
+	"container/heap"
+	"errors"
+
+	"github.com/pion/rtp/v2"
+)
+
+const MaxRtpDiff = 65000 //相邻两个包之间的最大差值
+
+type PriorityQueueRtp struct {
+	itemHeap    *packets
+	current     *rtp.Packet
+	priorityMap map[uint16]bool
+	lastPacket  *rtp.Packet
+}
+
+func NewPqRtp() *PriorityQueueRtp {
+	return &PriorityQueueRtp{
+		itemHeap:    &packets{},
+		priorityMap: make(map[uint16]bool),
+	}
+}
+
+func (p *PriorityQueueRtp) Len() int {
+	return p.itemHeap.Len()
+}
+
+func (p *PriorityQueueRtp) Push(v rtp.Packet) {
+	if p.priorityMap[v.SequenceNumber] {
+		return
+	}
+	newItem := &packet{
+		value:    v,
+		priority: v.SequenceNumber,
+	}
+	heap.Push(p.itemHeap, newItem)
+}
+
+func (p *PriorityQueueRtp) Pop() (rtp.Packet, error) {
+	if len(*p.itemHeap) == 0 {
+		return rtp.Packet{}, errors.New("empty queue")
+	}
+
+	item := heap.Pop(p.itemHeap).(*packet)
+	return item.value, nil
+}
+
+func (p *PriorityQueueRtp) Empty() {
+	old := *p.itemHeap
+	*p.itemHeap = old[:0]
+}
+
+type packets []*packet
+
+type packet struct {
+	value    rtp.Packet
+	priority uint16
+	index    int
+}
+
+func (p *packets) Len() int {
+	return len(*p)
+}
+
+func (p *packets) Less(i, j int) bool {
+	a, b := (*p)[i].priority, (*p)[j].priority
+	if int(a)-int(b) > MaxRtpDiff || int(b)-int(a) > MaxRtpDiff {
+		if a < b {
+			return false
+		}
+		return true
+	}
+	return a < b
+}
+
+func (p *packets) Swap(i, j int) {
+	(*p)[i], (*p)[j] = (*p)[j], (*p)[i]
+	(*p)[i].index = i
+	(*p)[j].index = j
+}
+
+func (p *packets) Push(x interface{}) {
+	it := x.(*packet)
+	it.index = len(*p)
+	*p = append(*p, it)
+}
+
+func (p *packets) Pop() interface{} {
+	old := *p
+	n := len(old)
+	item := old[n-1]
+	old[n-1] = nil  // avoid memory leak
+	item.index = -1 // for safety
+	*p = old[0 : n-1]
+	return item
+}

utils/sip.go

@@ -1,8 +1,10 @@
 package utils
 
 import (
+	"errors"
 	"fmt"
 	"math/rand"
+	"net"
 	"runtime"
 	"time"
 )
@@ -45,8 +47,67 @@ func randStringBySoure(src string, n int) string {
 	return string(output)
 }
 
+// Error Error
+type Error struct {
+	err    error
+	params []interface{}
+}
+
+func (err *Error) Error() string {
+	if err == nil {
+		return "<nil>"
+	}
+	str := fmt.Sprint(err.params...)
+	if err.err != nil {
+		str += fmt.Sprintf(" err:%s", err.err.Error())
+	}
+	return str
+}
+
+// NewError NewError
+func NewError(err error, params ...interface{}) error {
+	return &Error{err, params}
+}
 func PrintStack() {
 	var buf [4096]byte
 	n := runtime.Stack(buf[:], false)
 	fmt.Printf("==> %s\n", string(buf[:n]))
 }
+
+// ResolveSelfIP ResolveSelfIP
+func ResolveSelfIP() (net.IP, error) {
+	ifaces, err := net.Interfaces()
+	if err != nil {
+		return nil, err
+	}
+	for _, iface := range ifaces {
+		if iface.Flags&net.FlagUp == 0 {
+			continue // interface down
+		}
+		if iface.Flags&net.FlagLoopback != 0 {
+			continue // loopback interface
+		}
+		addrs, err := iface.Addrs()
+		if err != nil {
+			return nil, err
+		}
+		for _, addr := range addrs {
+			var ip net.IP
+			switch v := addr.(type) {
+			case *net.IPNet:
+				ip = v.IP
+			case *net.IPAddr:
+				ip = v.IP
+			}
+			if ip == nil || ip.IsLoopback() {
+				continue
+			}
+			ip = ip.To4()
+			if ip == nil {
+				continue // not an ipv4 address
+			}
+			return ip, nil
+		}
+	}
+	return nil, errors.New("server not connected to any network")
+}

yarn.lock

@@ -1,4 +0,0 @@
-# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
-# yarn lockfile v1
-
-