🐛 FIX: tcp解析

添加28181 bye接口调用时将流关闭

.gitignore

@@ -1,2 +1,3 @@
 node_modules
-.vscode
+.vscode
+.idea

LICENSE

@@ -0,0 +1,661 @@
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.

README.md

@@ -1,2 +1,180 @@
-# plugin-gb28181
-gb28181 plugin for monibuca
+# GB28181插件
+
+该插件提供SIP server的服务，以及流媒体服务器能力，可以将NVR和摄像头的流抓到m7s中，可获取的设备的录像数据以及访问录像视频。也可以控制摄像头的旋转、缩放等。
+
+## 插件地址
+
+github.com/Monibuca/plugin-gb28181
+
+## 插件引入
+
+```go
+import (
+_ "m7s.live/plugin/gb28181/v4"
+)
+```
+
+## 默认插件配置
+
+```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
+  mediaportmin:     0
+  meidaportmax:     0
+
+  removebaninterval: 600
+  loglevel:         info
+```
+
+- `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
+- `MediaPortMin`     uint16 媒体服务器端口范围最小值
+- `MediaPortMax`     uint16 媒体服务器端口范围最大值
+- `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。
+
+**如果配置了端口范围，将采用范围端口机制，每一个流对应一个端口
+
+**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
+
+### 使用SIP协议接受NVR或其他GB28181设备的注册
+
+- 服务器启动时自动监听SIP协议端口，当有设备注册时，会记录该设备信息，可以从UI的列表中看到设备
+- 定时发送Catalog命令查询设备的目录信息，可获得通道数据或者子设备
+- 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
+
+`/gb28181/api/list`
+设备的结构体如下
+
+```go
+type Device struct {
+	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
+
+`/gb28181/api/invite`
+
+参数名 | 必传 | 含义
+|----|---|---
+id|是 | 设备ID
+channel|是|通道编号
+startTime|否|开始时间（纯数字Unix时间戳）
+endTime|否|结束时间（纯数字Unix时间戳）
+
+返回200代表成功
+
+### 停止从设备拉流
+
+`/gb28181/api/bye`
+
+参数名 | 必传 | 含义
+|----|---|---
+id|是 | 设备ID
+channel|是|通道编号
+
+### 发送控制命令
+
+`/gb28181/api/control`
+
+参数名 | 必传 | 含义
+|----|---|---
+id|是 | 设备ID
+channel|是|通道编号
+ptzcmd|是|PTZ控制指令
+
+### 查询录像
+
+`/gb28181/api/records`
+
+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

@@ -0,0 +1,409 @@
+package gb28181
+
+import (
+	"errors"
+	"fmt"
+	"math/rand"
+	"net/http"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	. "m7s.live/engine/v4"
+	"github.com/ghettovoice/gosip/sip"
+	"go.uber.org/zap"
+	"m7s.live/plugin/gb28181/v4/utils"
+)
+
+type ChannelEx struct {
+	device          *Device
+	RecordPublisher *GBPublisher `json:"-"`
+	LivePublisher   *GBPublisher
+	LiveSubSP       string //实时子码流
+	Records         []*Record
+	RecordStartTime string
+	RecordEndTime   string
+	recordStartTime time.Time
+	recordEndTime   time.Time
+	liveInviteLock  sync.Mutex
+	tcpPortIndex    uint16
+	GpsTime         time.Time //gps时间
+	Longitude       string    //经度
+	Latitude        string    //纬度
+}
+
+// Channel 通道
+type Channel 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
+	Children     []*Channel `json:"-"`
+	*ChannelEx              //自定义属性
+}
+
+func (c *Channel) Copy(v *Channel) {
+	if v == nil {
+		return
+	}
+
+	c.DeviceID = v.DeviceID
+	c.ParentID = v.ParentID
+	c.Name = v.Name
+	c.Manufacturer = v.Manufacturer
+	c.Model = v.Model
+	c.Owner = v.Owner
+	c.CivilCode = v.CivilCode
+	c.Address = v.Address
+	c.Parental = v.Parental
+	c.SafetyWay = v.SafetyWay
+	c.RegisterWay = v.RegisterWay
+	c.Secrecy = v.Secrecy
+	c.Status = v.Status
+	c.Status = v.Status
+	c.ChannelEx = v.ChannelEx
+}
+
+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,
+	}
+	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)}),
+	}
+	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
+	channel.RecordStartTime = startTime
+	channel.RecordEndTime = endTime
+	channel.recordStartTime, _ = time.Parse(TIME_LAYOUT, startTime)
+	channel.recordEndTime, _ = time.Parse(TIME_LAYOUT, endTime)
+	channel.Records = nil
+	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, channel.DeviceID, 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
+	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, channel.DeviceID, PTZCmd)
+	request.SetBody(body, true)
+	resp, err := d.SipRequestForResponse(request)
+	if err != nil {
+		return http.StatusRequestTimeout
+	}
+	return int(resp.StatusCode())
+}
+
+type InviteOptions struct {
+	Start     int
+	End       int
+	dump      string
+	ssrc      string
+	SSRC      uint32
+	MediaPort uint16
+}
+
+func (o InviteOptions) IsLive() bool {
+	return o.Start == 0 || o.End == 0
+}
+
+func (o InviteOptions) Record() bool {
+	return !o.IsLive()
+}
+
+func (o *InviteOptions) Validate(start, end string) error {
+	if start != "" {
+		sint, err1 := strconv.ParseInt(start, 10, 0)
+		if err1 != nil {
+			return err1
+		}
+		o.Start = int(sint)
+	}
+	if end != "" {
+		eint, err2 := strconv.ParseInt(end, 10, 0)
+		if err2 != nil {
+			return err2
+		}
+		o.End = int(eint)
+	}
+	if o.Start >= o.End {
+		return errors.New("start < end")
+	}
+	return nil
+}
+
+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)
+}
+
+/*
+f字段： f = v/编码格式/分辨率/帧率/码率类型/码率大小a/编码格式/码率大小/采样率
+各项具体含义：
+    v：后续参数为视频的参数；各参数间以 “/”分割；
+编码格式：十进制整数字符串表示
+1 –MPEG-4 2 –H.264 3 – SVAC 4 –3GP
+    分辨率：十进制整数字符串表示
+1 – QCIF 2 – CIF 3 – 4CIF 4 – D1 5 –720P 6 –1080P/I
+帧率：十进制整数字符串表示 0～99
+码率类型：十进制整数字符串表示
+1 – 固定码率（CBR）     2 – 可变码率（VBR）
+码率大小：十进制整数字符串表示 0～100000（如 1表示1kbps）
+    a：后续参数为音频的参数；各参数间以 “/”分割；
+编码格式：十进制整数字符串表示
+1 – G.711    2 – G.723.1     3 – G.729      4 – G.722.1
+码率大小：十进制整数字符串
+音频编码码率： 1 — 5.3 kbps （注：G.723.1中使用）
+   2 — 6.3 kbps （注：G.723.1中使用）
+   3 — 8 kbps （注：G.729中使用）
+   4 — 16 kbps （注：G.722.1中使用）
+   5 — 24 kbps （注：G.722.1中使用）
+   6 — 32 kbps （注：G.722.1中使用）
+   7 — 48 kbps （注：G.722.1中使用）
+   8 — 64 kbps（注：G.711中使用）
+采样率：十进制整数字符串表示
+	1 — 8 kHz（注：G.711/ G.723.1/ G.729中使用）
+	2—14 kHz（注：G.722.1中使用）
+	3—16 kHz（注：G.722.1中使用）
+	4—32 kHz（注：G.722.1中使用）
+	注1：字符串说明
+本节中使用的“十进制整数字符串”的含义为“0”～“4294967296” 之间的十进制数字字符串。
+注2：参数分割标识
+各参数间以“/”分割，参数间的分割符“/”不能省略；
+若两个分割符 “/”间的某参数为空时（即两个分割符 “/”直接将相连时）表示无该参数值；
+注3：f字段说明
+使用f字段时，应保证视频和音频参数的结构完整性，即在任何时候，f字段的结构都应是完整的结构：
+f = v/编码格式/分辨率/帧率/码率类型/码率大小a/编码格式/码率大小/采样率
+若只有视频时，音频中的各参数项可以不填写，但应保持 “a///”的结构:
+f = v/编码格式/分辨率/帧率/码率类型/码率大小a///
+若只有音频时也类似处理，视频中的各参数项可以不填写，但应保持 “v/”的结构：
+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(opt InviteOptions) (code int, err error) {
+	if opt.IsLive() {
+		if !channel.liveInviteLock.TryLock() {
+			return 304, nil
+		}
+		defer func() {
+			if code != 200 {
+				channel.liveInviteLock.Unlock()
+			}
+		}()
+	}
+	channel.Bye(opt.IsLive())
+	d := channel.device
+	streamPath := fmt.Sprintf("%s/%s", d.ID, channel.DeviceID)
+	s := "Play"
+	opt.CreateSSRC()
+	if opt.Record() {
+		s = "Playback"
+		streamPath = fmt.Sprintf("%s/%s/%d-%d", d.ID, channel.DeviceID, opt.Start, opt.End)
+	}
+	if opt.dump == "" {
+		opt.dump = conf.DumpPath
+	}
+	// size := 1
+	// fps := 15
+	// bitrate := 200
+	// fmt.Sprintf("f=v/2/%d/%d/1/%da///", size, fps, bitrate)
+	publisher := &GBPublisher{
+		InviteOptions: opt,
+		channel:       channel,
+	}
+	protocol := ""
+	if conf.IsMediaNetworkTCP() {
+		protocol = "TCP/"
+		if conf.tcpPorts.Valid {
+			opt.MediaPort, err = publisher.ListenTCP()
+			if err != nil {
+				return 500, err
+			}
+		} else if opt.MediaPort == 0 {
+			opt.MediaPort = conf.MediaPort
+		}
+	} else {
+		if conf.udpPorts.Valid {
+			opt.MediaPort, err = publisher.ListenUDP()
+			if err != nil {
+				code = 500
+				return
+			}
+		} else if opt.MediaPort == 0 {
+			opt.MediaPort = conf.MediaPort
+		}
+	}
+	// 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", channel.DeviceID, d.mediaIP),
+		"s=" + s,
+		"u=" + channel.DeviceID + ":0",
+		"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",
+		"y=" + opt.ssrc,
+		"",
+	}
+	if conf.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.AppendHeader(&subject)
+	publisher.inviteRes, err = d.SipRequestForResponse(invite)
+	if err != nil {
+		return http.StatusRequestTimeout, err
+	}
+	code = int(publisher.inviteRes.StatusCode())
+	plugin.Info(fmt.Sprintf("Channel :%s invite response status code: %d", channel.DeviceID, code))
+	if code == 200 {
+		ds := strings.Split(publisher.inviteRes.Body(), "\r\n")
+		for _, l := range ds {
+			if ls := strings.Split(l, "="); len(ls) > 1 {
+				if ls[0] == "y" && len(ls[1]) > 0 {
+					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
+				}
+			}
+		}
+		if conf.UdpCacheSize > 0 && !conf.IsMediaNetworkTCP() {
+			publisher.udpCache = utils.NewPqRtp()
+		}
+		if err = plugin.Publish(streamPath, publisher); err != nil {
+			code = 403
+			return
+		}
+		ack := sip.NewAckRequest("", invite, publisher.inviteRes, "", nil)
+		srv.Send(ack)
+	} else if opt.IsLive() && conf.AutoInvite {
+		time.AfterFunc(time.Second*5, func() {
+			channel.Invite(InviteOptions{})
+		})
+	}
+	return
+}
+
+func (channel *Channel) Bye(live bool) int {
+	d := channel.device
+	streamPath := fmt.Sprintf("%s/%s", d.ID, channel.DeviceID)
+	if s := Streams.Get(streamPath); s != nil {
+		s.Close()
+	}
+	if live && channel.LivePublisher != nil {
+		return channel.LivePublisher.Bye()
+	}
+	if !live && channel.RecordPublisher != nil {
+		return channel.RecordPublisher.Bye()
+	}
+	return 404
+}

device.go

@@ -0,0 +1,522 @@
+package gb28181
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"os"
+	"strings"
+	"sync"
+	"time"
+
+	"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"
+
+// Record 录像
+type Record struct {
+	//channel   *Channel
+	DeviceID  string
+	Name      string
+	FilePath  string
+	Address   string
+	StartTime string
+	EndTime   string
+	Secrecy   int
+	Type      string
+}
+
+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
+	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
+	NetAddr         string
+	channelMap      map[string]*Channel
+	channelMutex    sync.RWMutex
+	subscriber      struct {
+		CallID  string
+		Timeout time.Time
+	}
+}
+
+func (config *GB28181Config) RecoverDevice(d *Device, req sip.Request) {
+	from, _ := req.From()
+	d.addr = sip.Address{
+		DisplayName: from.DisplayName,
+		Uri:         from.Address,
+	}
+	deviceIp := req.Source()
+	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("RecoverDevice", zap.String("id", d.ID), zap.String("deviceIp", deviceIp), zap.String("servIp", servIp), zap.String("sipIP", sipIP), zap.String("mediaIp", mediaIp))
+	d.Status = string(sip.REGISTER)
+	d.sipIP = sipIP
+	d.mediaIP = mediaIp
+	d.NetAddr = deviceIp
+	d.UpdateTime = time.Now()
+	d.channelMap = make(map[string]*Channel)
+	go d.Catalog()
+}
+func (config *GB28181Config) StoreDevice(id string, req sip.Request) {
+	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,
+			NetAddr:      deviceIp,
+			channelMap:   make(map[string]*Channel),
+		}
+		Devices.Store(id, d)
+		SaveDevices()
+		go d.Catalog()
+	}
+}
+func ReadDevices() {
+	if f, err := os.OpenFile("devices.json", os.O_RDONLY, 0644); err == nil {
+		defer f.Close()
+		var items []*Device
+		if err = json.NewDecoder(f).Decode(&items); err == nil {
+			for _, item := range items {
+				if time.Since(item.UpdateTime) < time.Duration(conf.RegisterValidity)*time.Second {
+					item.Status = "RECOVER"
+					Devices.Store(item.ID, item)
+				}
+			}
+		}
+	}
+}
+func SaveDevices() {
+	var item []any
+	Devices.Range(func(key, value any) bool {
+		item = append(item, value)
+		return true
+	})
+	if f, err := os.OpenFile("devices.json", os.O_WRONLY|os.O_CREATE, 0644); err == nil {
+		defer f.Close()
+		encoder := json.NewEncoder(f)
+		encoder.SetIndent("", " ")
+		encoder.Encode(item)
+	}
+}
+
+func (d *Device) addChannel(channel *Channel) {
+	for _, c := range d.Channels {
+		if c.DeviceID == channel.DeviceID {
+			return
+		}
+	}
+	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()
+	for _, c := range list {
+		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 {
+				if c.DeviceID != parentId {
+					parent.Children = append(parent.Children, c)
+				}
+			} else {
+				d.addChannel(c)
+			}
+		} else {
+			d.addChannel(c)
+		}
+		if old, ok := d.channelMap[c.DeviceID]; ok {
+			c.ChannelEx = old.ChannelEx
+			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))
+				}
+			}
+			old.Copy(c)
+			c = old
+		} else {
+			c.ChannelEx = &ChannelEx{
+				device: d,
+			}
+			d.channelMap[c.DeviceID] = c
+		}
+		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 = ""
+		}
+	}
+}
+func (d *Device) UpdateRecord(channelId string, list []*Record) {
+	d.channelMutex.RLock()
+	if c, ok := d.channelMap[channelId]; ok {
+		c.Records = append(c.Records, list...)
+	}
+	d.channelMutex.RUnlock()
+}
+
+func (d *Device) CreateRequest(Method sip.RequestMethod) (req sip.Request) {
+	d.sn++
+
+	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) 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,
+			}
+			channels := []*Channel{channel}
+			d.UpdateChannels(channels)
+		case "DEL":
+			//删除
+			plugin.Debug("收到通道删除通知")
+			d.channelOffline(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)
+	}
+}

go.mod

@@ -1,10 +1,52 @@
-module github.com/Monibuca/plugin-gb28181
+module m7s.live/plugin/gb28181/v4
 
-go 1.13
+go 1.18
 
 require (
-	github.com/Monibuca/engine/v2 v2.2.2
-	github.com/Monibuca/plugin-rtp v1.0.0
+	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
-	golang.org/x/net v0.0.0-20201029221708-28c70e62bb1d
+	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

@@ -1,53 +1,216 @@
-github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
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-github.com/Monibuca/engine/v2 v2.2.2 h1:ho5M3aFW9Mlj9Lb56Qvk0m+9L8yWc7RhwPh8dRWAeBk=
-github.com/Monibuca/engine/v2 v2.2.2/go.mod h1:34EYjjV15G6myuHOKaJkO7y5tJ1Arq/NfC9Weacr2mc=
-github.com/Monibuca/plugin-gb28181 v1.0.0-alpha3 h1:1oOSVIhkHxWZ5ALCVJG7P5MKxywNVm2zEwaHj+UqU1g=
-github.com/Monibuca/plugin-gb28181 v1.0.0-alpha3/go.mod h1:fyzQG2o13Df9VdCd4QrjbY0AFtcoKeIfnTMErVhWpLA=
-github.com/Monibuca/plugin-rtp v1.0.0 h1:yksNsIIGxoKX8UZirkAUK+mGZ/XoEeS2vqbIqtqXyCg=
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-github.com/funny/slab v0.0.0-20180511031532-b1fad5e5d478/go.mod h1:0j1+svBH8ABEIPdUP0AIg4qedsybnXGJBakCEw8cfoo=
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+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
+gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
+gopkg.in/natefinch/lumberjack.v2 v2.0.0/go.mod h1:l0ndWWf7gzL7RNwBG7wST/UCcT4T24xpD6X8LsfU/+k=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+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 +1,271 @@
+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)
+		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)
+		switch d.Status {
+		case "RECOVER":
+			config.RecoverDevice(d, req)
+			return
+		case 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

@@ -1,183 +1,102 @@
 package gb28181
 
 import (
-	"log"
-	"math/rand"
-	"net"
-	"net/http"
-	"strconv"
+	"fmt"
 	"strings"
-	"sync"
-	"time"
 
-	. "github.com/Monibuca/engine/v2"
-	"github.com/Monibuca/engine/v2/util"
-	"github.com/Monibuca/plugin-gb28181/transaction"
-	rtp "github.com/Monibuca/plugin-rtp"
-	. "github.com/logrusorgru/aurora"
+	myip "github.com/husanpao/ip"
+	. "m7s.live/engine/v4"
+	"m7s.live/engine/v4/config"
 )
 
-var Devices sync.Map
-var config = struct {
-	Serial       string
-	Realm        string
-	ListenAddr   string
-	Expires      int
-	AutoInvite   bool
-	MediaPortMin uint16
-	MediaPortMax uint16
-}{"34020000002000000001", "3402000000", "127.0.0.1:5060", 3600, true, 58200, 58300}
+type GB28181Config struct {
+	AutoInvite     bool
+	PreFetchRecord bool
 
-func init() {
-	InstallPlugin(&PluginConfig{
-		Name:   "GB28181",
-		Config: &config,
-		Type:   PLUGIN_PUBLISHER,
-		Run:    run,
-	})
+	//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
 }
 
-func run() {
-	ipAddr, err := net.ResolveUDPAddr("", config.ListenAddr)
-	if err != nil {
-		log.Fatal(err)
+func (c *GB28181Config) initRoutes() {
+	c.routes = make(map[string]string)
+	tempIps := myip.LocalAndInternalIPs()
+	for k, v := range tempIps {
+		c.routes[k] = v
+		if lastdot := strings.LastIndex(k, "."); lastdot >= 0 {
+			c.routes[k[0:lastdot]] = k
+		}
 	}
-	Print(Green("server gb28181 start at"), BrightBlue(config.ListenAddr))
-	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,
+	plugin.Info(fmt.Sprintf("LocalAndInternalIPs detail: %s", c.routes))
+}
+func (c *GB28181Config) OnEvent(event any) {
+	switch event.(type) {
+	case FirstConfig:
+		ReadDevices()
+		go c.initRoutes()
+		c.startServer()
+	}
+}
 
-		AudioEnable:      true,
-		WaitKeyFrame:     true,
-		MediaPortMin:     config.MediaPortMin,
-		MediaPortMax:     config.MediaPortMax,
-		MediaIdleTimeout: 30,
-	}
-	s := transaction.NewCore(config)
-	s.OnInvite = onPublish
-	http.HandleFunc("/gb28181/list", func(w http.ResponseWriter, r *http.Request) {
-		sse := util.NewSSE(w, r.Context())
-		for {
-			var list []*transaction.Device
-			s.Devices.Range(func(key, value interface{}) bool {
-				list = append(list, value.(*transaction.Device))
-				return true
-			})
-			sse.WriteJSON(list)
-			select {
-			case <-time.After(time.Second * 5):
-			case <-sse.Done():
-				return
-			}
-		}
-	})
-	http.HandleFunc("/gb28181/control", func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Access-Control-Allow-Origin", "*")
-		id := r.URL.Query().Get("id")
-		channel, err := strconv.Atoi(r.URL.Query().Get("channel"))
-		if err != nil {
-			w.WriteHeader(404)
-		}
-		ptzcmd := r.URL.Query().Get("ptzcmd")
-		if v, ok := s.Devices.Load(id); ok {
-			w.WriteHeader(v.(*transaction.Device).Control(channel, ptzcmd))
-		} else {
-			w.WriteHeader(404)
-		}
-	})
-	http.HandleFunc("/gb28181/invite", func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Access-Control-Allow-Origin", "*")
-		id := r.URL.Query().Get("id")
-		channel, err := strconv.Atoi(r.URL.Query().Get("channel"))
-		if err != nil {
-			w.WriteHeader(404)
-		}
-		if v, ok := s.Devices.Load(id); ok {
-			w.WriteHeader(v.(*transaction.Device).Invite(channel))
-		} else {
-			w.WriteHeader(404)
-		}
-	})
-	http.HandleFunc("/gb28181/bye", func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Access-Control-Allow-Origin", "*")
-		id := r.URL.Query().Get("id")
-		channel, err := strconv.Atoi(r.URL.Query().Get("channel"))
-		if err != nil {
-			w.WriteHeader(404)
-		}
-		if v, ok := s.Devices.Load(id); ok {
-			w.WriteHeader(v.(*transaction.Device).Bye(channel))
-		} else {
-			w.WriteHeader(404)
-		}
-	})
-	s.Start()
+func (c *GB28181Config) IsMediaNetworkTCP() bool {
+	return strings.ToLower(c.MediaNetwork) == "tcp"
 }
-func onPublish(channel *transaction.Channel) (port int) {
-	rtpPublisher := new(rtp.RTP_PS)
-	if !rtpPublisher.Publish("gb28181/" + channel.DeviceID) {
-		return
-	}
-	defer func() {
-		if port == 0 {
-			rtpPublisher.Close()
-		}
-	}()
-	rtpPublisher.Type = "GB28181"
-	var conn *net.UDPConn
-	var err error
-	rang := int(config.MediaPortMax - config.MediaPortMin)
-	for count := rang; count > 0; count-- {
-		randNum := rand.Intn(rang)
-		port = int(config.MediaPortMin) + randNum
-		addr, _ := net.ResolveUDPAddr("udp", ":"+strconv.Itoa(port))
-		conn, err = net.ListenUDP("udp", addr)
-		if err != nil {
-			continue
-		} else {
-			break
-		}
-	}
-	if err != nil {
-		return
-	}
-	networkBuffer := 1048576
-	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)
-	}
-	la := conn.LocalAddr().String()
-	strPort := la[strings.LastIndex(la, ":")+1:]
-	if port, err = strconv.Atoi(strPort); err != nil {
-		return
-	}
-	go func() {
-		bufUDP := make([]byte, 1048576)
-		Printf("udp server start listen video port[%d]", port)
-		defer Printf("udp server stop listen video port[%d]", port)
-		defer conn.Close()
-		for rtpPublisher.Err() == nil {
-			if err = conn.SetReadDeadline(time.Now().Add(time.Second * 30)); err != nil {
-				return
-			}
-			if n, _, err := conn.ReadFromUDP(bufUDP); err == nil {
-				rtpPublisher.PushPS(bufUDP[:n])
-			} else {
-				Println("udp server read video pack error", err)
-				rtpPublisher.Close()
-			}
-		}
-	}()
-	return
+
+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

@@ -0,0 +1,287 @@
+package gb28181
+
+import (
+	"fmt"
+	"io"
+	"net"
+	"os"
+	"time"
+
+	"github.com/ghettovoice/gosip/sip"
+	"github.com/pion/rtp/v2"
+	"go.uber.org/zap"
+	. "m7s.live/engine/v4"
+	. "m7s.live/engine/v4/codec"
+	. "m7s.live/engine/v4/track"
+	"m7s.live/engine/v4/util"
+	"m7s.live/plugin/gb28181/v4/utils"
+)
+
+type GBPublisher struct {
+	Publisher
+	InviteOptions
+	channel     *Channel
+	inviteRes   sip.Response
+	parser      *utils.DecPSPackage
+	lastSeq     uint16
+	udpCache    *utils.PriorityQueueRtp
+	dumpFile    *os.File
+	dumpPrint   io.Writer
+	lastReceive time.Time
+	reorder     util.RTPReorder[*rtp.Packet]
+}
+
+func (p *GBPublisher) PrintDump(s string) {
+	if p.dumpPrint != nil {
+		p.dumpPrint.Write([]byte(s))
+	}
+}
+
+func (p *GBPublisher) OnEvent(event any) {
+	if p.channel == nil {
+		p.IO.OnEvent(event)
+		return
+	}
+	switch event.(type) {
+	case IPublisher:
+		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))
+			}
+		}
+	case SEwaitPublish:
+		//掉线自动重新拉流
+		if p.IsLive() {
+			if p.channel.LivePublisher != nil {
+				p.channel.LivePublisher = nil
+				p.channel.liveInviteLock.Unlock()
+			}
+			go p.channel.Invite(InviteOptions{})
+		}
+	case SEclose, SEKick:
+		if p.IsLive() {
+			if p.channel.LivePublisher != nil {
+				p.channel.LivePublisher = nil
+				p.channel.liveInviteLock.Unlock()
+			}
+		} else {
+			p.channel.RecordPublisher = nil
+		}
+		conf.publishers.Delete(p.SSRC)
+		if p.dumpFile != nil {
+			p.dumpFile.Close()
+		}
+		p.Bye()
+	}
+	p.Publisher.OnEvent(event)
+}
+
+func (p *GBPublisher) Bye() int {
+	res := p.inviteRes
+	if res == nil {
+		return 404
+	}
+	defer p.Stop()
+	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:
+			//推测编码类型
+			var maybe264 H264NALUType
+			maybe264 = maybe264.Parse(payload[4])
+			switch maybe264 {
+			case NALU_Non_IDR_Picture, NALU_IDR_Picture, NALU_SEI, NALU_SPS, NALU_PPS, NALU_Access_Unit_Delimiter:
+				p.VideoTrack = NewH264(p.Publisher.Stream)
+			default:
+				p.VideoTrack = NewH265(p.Publisher.Stream)
+			}
+		}
+	}
+	if len(payload) > 10 {
+		p.PrintDump(fmt.Sprintf("<td>pts:%d dts:%d data: % 2X</td>", pts, dts, payload[:10]))
+	} else {
+		p.PrintDump(fmt.Sprintf("<td>pts:%d dts:%d data: % 2X</td>", pts, dts, payload))
+	}
+	if dts == 0 {
+		dts = pts
+	}
+	p.VideoTrack.WriteAnnexB(pts, dts, payload)
+}
+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)
+}
+
+// 解析rtp封装 https://www.ietf.org/rfc/rfc2250.txt
+func (p *GBPublisher) PushPS(rtp *rtp.Packet) {
+	if p.parser == nil {
+		p.parser = utils.NewDecPSPackage(p)
+	}
+	if conf.IsMediaNetworkTCP() {
+		p.parser.Feed(rtp.Payload)
+		p.lastSeq = rtp.SequenceNumber
+	} else {
+		for rtp = p.reorder.Push(rtp.SequenceNumber, rtp); rtp != nil; rtp = p.reorder.Pop() {
+			if rtp.SequenceNumber != p.lastSeq+1 {
+				p.parser.Drop()
+			}
+			p.parser.Feed(rtp.Payload)
+			p.lastSeq = rtp.SequenceNumber
+		}
+	}
+}
+
+func (p *GBPublisher) Replay(f *os.File) (err error) {
+	var rtpPacket rtp.Packet
+	defer f.Close()
+	if p.dumpPrint != nil {
+		p.PrintDump(`<style  type="text/css">
+		.gray {
+			color: gray;
+		}
+		</style>
+		`)
+		p.PrintDump("<table>")
+		defer p.PrintDump("</table>")
+	}
+	var t uint16
+	for l := make([]byte, 6); !p.IsClosed(); time.Sleep(time.Millisecond * time.Duration(t)) {
+		_, err = f.Read(l)
+		if err != nil {
+			return
+		}
+		payload := make([]byte, util.ReadBE[int](l[:4]))
+		t = util.ReadBE[uint16](l[4:])
+		p.PrintDump(fmt.Sprintf("[<b>%d</b> %d]", t, len(payload)))
+		_, err = f.Read(payload)
+		if err != nil {
+			return
+		}
+		rtpPacket.Unmarshal(payload)
+		p.PushPS(&rtpPacket)
+	}
+	return
+}
+
+func (p *GBPublisher) ListenUDP() (port uint16, err error) {
+	var rtpPacket rtp.Packet
+	networkBuffer := 1048576
+	port, err = conf.udpPorts.GetPort()
+	if err != nil {
+		return
+	}
+	addr := fmt.Sprintf(":%d", port)
+	mediaAddr, _ := net.ResolveUDPAddr("udp", addr)
+	conn, err := net.ListenUDP("udp", mediaAddr)
+	if err != nil {
+		conf.udpPorts.Recycle(port)
+		plugin.Error("listen media server udp err", zap.String("addr", addr), zap.Error(err))
+		return 0, err
+	}
+	p.SetIO(conn)
+	go func() {
+		defer conn.Close()
+		bufUDP := make([]byte, networkBuffer)
+		plugin.Info("Media udp server start.", zap.Uint16("port", port))
+		defer plugin.Info("Media udp server stop", zap.Uint16("port", port))
+		defer conf.udpPorts.Recycle(port)
+		dumpLen := make([]byte, 6)
+		conn.SetReadDeadline(time.Now().Add(time.Second * 10))
+		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 p.dumpFile != nil {
+				util.PutBE(dumpLen[:4], n)
+				if p.lastReceive.IsZero() {
+					util.PutBE(dumpLen[4:], 0)
+				} else {
+					util.PutBE(dumpLen[4:], uint16(time.Since(p.lastReceive).Milliseconds()))
+				}
+				p.lastReceive = time.Now()
+				p.dumpFile.Write(dumpLen)
+				p.dumpFile.Write(ps)
+			}
+			p.PushPS(&rtpPacket)
+			conn.SetReadDeadline(time.Now().Add(time.Second * 10))
+		}
+	}()
+	return
+}
+
+func (p *GBPublisher) ListenTCP() (port uint16, err error) {
+	port, err = conf.tcpPorts.GetPort()
+	if err != nil {
+		return
+	}
+	addr := fmt.Sprintf(":%d", port)
+	mediaAddr, _ := net.ResolveTCPAddr("tcp", addr)
+	listen, err := net.ListenTCP("tcp", mediaAddr)
+	if err != nil {
+		defer conf.tcpPorts.Recycle(port)
+		plugin.Error("listen media server tcp err", zap.String("addr", addr), zap.Error(err))
+		return 0, err
+	}
+	go func() {
+		plugin.Info("Media tcp server start.", zap.Uint16("port", port))
+		defer conf.tcpPorts.Recycle(port)
+		defer plugin.Info("Media tcp server stop", zap.Uint16("port", port))
+		conn, err := listen.Accept()
+		listen.Close()
+		p.SetIO(conn)
+		if err != nil {
+			plugin.Error("Accept err=", zap.Error(err))
+			return
+		}
+		processTcpMediaConn(conf, conn)
+	}()
+	return
+}

restful.go

@@ -0,0 +1,136 @@
+package gb28181
+
+import (
+	"net/http"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+
+	"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 {
+		http.NotFound(w, r)
+	}
+}
+
+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 {
+		http.NotFound(w, r)
+	}
+}
+
+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{
+		dump:      query.Get("dump"),
+		MediaPort: uint16(port),
+	}
+	opt.Validate(query.Get("startTime"), query.Get("endTime"))
+	if c := FindChannel(id, channel); c == nil {
+		http.NotFound(w, r)
+	} else if opt.IsLive() && c.LivePublisher != nil {
+		w.WriteHeader(304) //直播流已存在
+	} else if code, err := c.Invite(opt); err == nil {
+		w.WriteHeader(code)
+	} else {
+		http.Error(w, err.Error(), code)
+	}
+}
+
+func (conf *GB28181Config) API_replay(w http.ResponseWriter, r *http.Request) {
+	dump := r.URL.Query().Get("dump")
+	printOut := r.URL.Query().Get("print")
+	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 {
+		streamPath := dump
+		if strings.HasPrefix(dump, "/") {
+			streamPath = "replay" + dump
+		} else {
+			streamPath = "replay/" + dump
+		}
+		var pub GBPublisher
+		pub.SetIO(f)
+		if err = plugin.Publish(streamPath, &pub); err == nil {
+			if printOut != "" {
+				pub.dumpPrint = w
+				pub.SetParentCtx(r.Context())
+				err = pub.Replay(f)
+			} else {
+				go pub.Replay(f)
+				w.Write([]byte("ok"))
+			}
+		} else {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+		}
+	}
+}
+
+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 {
+		http.NotFound(w, r)
+	}
+}
+
+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 {
+		http.NotFound(w, r)
+	}
+}

server.go

@@ -0,0 +1,250 @@
+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 PortManager struct {
+	recycle chan uint16
+	max     uint16
+	pos     uint16
+	Valid   bool
+}
+
+func (pm *PortManager) Init(start, end uint16) {
+	pm.pos = start
+	pm.max = end
+	if pm.pos > 0 && pm.max > pm.pos {
+		pm.Valid = true
+		pm.recycle = make(chan uint16, pm.Range())
+	}
+}
+
+func (pm *PortManager) Range() uint16 {
+	return pm.max - pm.pos
+}
+
+func (pm *PortManager) Recycle(p uint16) (err error) {
+	select {
+	case pm.recycle <- p:
+		return nil
+	default:
+		return io.EOF //TODO: 换一个Error
+	}
+}
+
+func (pm *PortManager) GetPort() (p uint16, err error) {
+	select {
+	case p = <-pm.recycle:
+		return
+	default:
+		if pm.Range() > 0 {
+			pm.pos++
+			p = pm.pos
+			return
+		} else {
+			return 0, io.EOF //TODO: 换一个Error
+		}
+	}
+}
+
+type Server struct {
+	Ignores    map[string]struct{}
+	publishers util.Map[uint32, *GBPublisher]
+	tcpPorts   PortManager
+	udpPorts   PortManager
+}
+
+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" {
+		config.tcpPorts.Init(config.MediaPortMin, config.MediaPortMax)
+		if !config.tcpPorts.Valid {
+			config.listenMediaTCP()
+		}
+	} else {
+		config.udpPorts.Init(config.MediaPortMin, config.MediaPortMax)
+		if !config.udpPorts.Valid {
+			config.listenMediaUDP()
+		}
+	}
+}
+
+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 (config *GB28181Config) listenMediaTCP() {
+	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 (config *GB28181Config) listenMediaUDP() {
+	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

@@ -1,566 +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, "=")
-			k, v := tmp[0], tmp[1]
-			ret.params[k] = v
-		}
-	}
-
-	//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

@@ -1,455 +0,0 @@
-package sip
-
-import (
-	"errors"
-	"fmt"
-	"strconv"
-	"strings"
-
-	"github.com/Monibuca/plugin-gb28181/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 len(msgArr) > 1 {
-		msg.Body = strings.TrimSpace(msgArr[1])
-	}
-
-	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.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

@@ -1,96 +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

@@ -1,60 +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
-}

transaction/core.go

@@ -1,467 +0,0 @@
-package transaction
-
-import (
-	"bytes"
-	"context"
-	"encoding/xml"
-	"fmt"
-	"io"
-	"net"
-	"os"
-	"sync"
-	"time"
-
-	"github.com/Monibuca/plugin-gb28181/sip"
-	"github.com/Monibuca/plugin-gb28181/transport"
-	"github.com/Monibuca/plugin-gb28181/utils"
-	"golang.org/x/net/html/charset"
-)
-
-//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
-	removeTa     chan string                 //要删除transaction的时候，通过chan传递tid
-	tp           transport.ITransport        //transport
-	config       *Config                     //sip server配置信息
-	Devices      sync.Map
-	OnInvite     func(*Channel) int
-}
-
-//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),
-		removeTa:     make(chan string, 10),
-		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()
-	go ta.Run()
-}
-
-//delete transaction
-func (c *Core) DelTransaction(tid string) {
-	c.mutex.Lock()
-	delete(c.transactions, tid)
-	c.mutex.Unlock()
-}
-
-//创建事件:根据接收到的消息创建消息事件
-func (c *Core) NewInComingMessageEvent(m *sip.Message) *EventObj {
-	return &EventObj{
-		evt: getInComingMessageEvent(m),
-		tid: getMessageTransactionID(m),
-		msg: m,
-	}
-}
-
-//创建事件:根据发出的消息创建消息事件
-func (c *Core) NewOutGoingMessageEvent(m *sip.Message) *EventObj {
-	return &EventObj{
-		evt: getOutGoingMessageEvent(m),
-		tid: getMessageTransactionID(m),
-		msg: m,
-	}
-}
-
-//创建事物
-//填充此事物的参数：via、from、to、callID、cseq
-func (c *Core) initTransaction(ctx context.Context, obj *EventObj) *Transaction {
-	m := obj.msg
-
-	//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:       obj.tid,
-		core:     c,
-		ctx:      ctx,
-		done:     make(chan struct{}),
-		event:    make(chan *EventObj, 10), //带缓冲的event channel
-		response: make(chan *Response),
-		startAt:  time.Now(),
-		endAt:    time.Now().Add(1000000 * time.Hour),
-	}
-	//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() {
-	defer func() {
-		if err := recover(); err != nil {
-			fmt.Println("packet handler panic: ", err)
-			utils.PrintStack()
-			os.Exit(1)
-		}
-	}()
-
-	ch := c.tp.ReadPacketChan()
-	timer := time.Tick(time.Second * 5)
-	//阻塞读取消息
-	for {
-		//fmt.Println("PacketHandler ========== SIP Client")
-		select {
-		case tid := <-c.removeTa:
-			c.DelTransaction(tid)
-		case p := <-ch:
-			err := c.HandleReceiveMessage(p)
-			if err != nil {
-				fmt.Println("handler sip response message failed:", err.Error())
-				continue
-			}
-		case <-timer:
-			c.RemoveDead()
-		}
-	}
-}
-
-//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 {
-	methond := msg.GetMethod()
-	fmt.Println("send message:", methond)
-
-	e := c.NewOutGoingMessageEvent(msg)
-
-	//匹配事物
-	c.mutex.RLock()
-	ta, ok := c.transactions[e.tid]
-	c.mutex.RUnlock()
-	if !ok {
-		//新的请求
-		ta = c.initTransaction(c.ctx, e)
-
-		//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 msg.GetMethod() == sip.INVITE || msg.GetMethod() == 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.event <- e
-	<-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())
-
-	e := c.NewInComingMessageEvent(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[e.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 v, ok := c.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
-					DeviceList []Channel `xml:"DeviceList>Item"`
-				}{}
-				decoder := xml.NewDecoder(bytes.NewReader([]byte(msg.Body)))
-				decoder.CharsetReader = func(c string, i io.Reader) (io.Reader, error) {
-					return charset.NewReaderLabel(c, i)
-				}
-				decoder.Decode(temp)
-				switch temp.XMLName.Local {
-				case "Notify":
-					go d.Query()
-				case "Response":
-					switch temp.CmdType {
-					case "Catalog":
-						d.UpdateChannels(temp.DeviceList)
-					}
-				}
-				if ta == nil {
-					c.Send(msg.BuildResponse(200))
-				}
-			}
-			if ta != nil {
-				ta.event <- c.NewOutGoingMessageEvent(msg.BuildResponse(200))
-			}
-		case sip.REGISTER:
-			if !ok {
-				ta = c.initTransaction(c.ctx, e)
-				ta.typo = FSM_NIST
-				ta.state = NIST_PROCEEDING
-				c.AddTransaction(ta)
-			}
-			c.AddDevice(msg)
-			ta.event <- c.NewOutGoingMessageEvent(msg.BuildResponse(200))
-		//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.event <- e
-
-	}
-	//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
-}
-func (c *Core) AddDevice(msg *sip.Message) *Device {
-	v := &Device{
-		ID:           msg.From.Uri.UserInfo(),
-		RegisterTime: time.Now(),
-		UpdateTime:   time.Now(),
-		Status:       string(sip.REGISTER),
-		core:         c,
-		from:         &sip.Contact{Uri: msg.StartLine.Uri, Params: make(map[string]string)},
-		to:           msg.To,
-		Addr:         msg.Via.GetSendBy(),
-	}
-	c.Devices.Store(msg.From.Uri.UserInfo(), v)
-	return v
-}

transaction/device.go

@@ -1,192 +0,0 @@
-package transaction
-
-import (
-	"fmt"
-	"strings"
-	"time"
-
-	"github.com/Monibuca/plugin-gb28181/sip"
-	"github.com/Monibuca/plugin-gb28181/utils"
-)
-
-type Channel struct {
-	DeviceID     string
-	Name         string
-	Manufacturer string
-	Model        string
-	Owner        string
-	CivilCode    string
-	Address      string
-	Parental     int
-	SafetyWay    int
-	RegisterWay  int
-	Secrecy      int
-	Status       string
-	device       *Device
-	inviteRes    *sip.Message
-	Connected    bool
-}
-type Device struct {
-	ID           string
-	RegisterTime time.Time
-	UpdateTime   time.Time
-	Status       string
-	Channels     []Channel
-	core         *Core
-	sn           int
-	from         *sip.Contact
-	to           *sip.Contact
-	Addr         string
-}
-
-func (c *Core) RemoveDead() {
-	c.Devices.Range(func(k, v interface{}) bool {
-		device := v.(*Device)
-		if device.UpdateTime.Sub(device.RegisterTime) > time.Duration(c.config.RegisterValidity)*time.Second {
-			c.Devices.Delete(k)
-		}
-		return true
-	})
-}
-func (d *Device) UpdateChannels(list []Channel) {
-	for _, c := range list {
-		c.device = d
-		have := false
-		for i, o := range d.Channels {
-			if o.DeviceID == c.DeviceID {
-				c.inviteRes = o.inviteRes
-				c.Connected = o.inviteRes != nil
-				d.Channels[i] = c
-				have = true
-				break
-			}
-		}
-		if !have {
-			d.Channels = append(d.Channels, c)
-		}
-	}
-}
-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,
-	}
-	requestMsg.From = &sip.Contact{
-		Uri:    sip.NewURI(c.device.core.config.Serial + "@" + c.device.core.config.Realm),
-		Params: map[string]string{"tag": utils.RandNumString(9)},
-	}
-	return
-}
-func (d *Device) CreateMessage(Method sip.Method) (requestMsg *sip.Message) {
-	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.config.SipIP,
-			Port:      fmt.Sprintf("%d", d.core.config.SipPort),
-			Params: map[string]string{
-				"branch": fmt.Sprintf("z9hG4bK%s", utils.RandNumString(8)),
-				"rport":  "-1", //only key,no-value
-			},
-		}, From: d.from,
-		To: d.to, CSeq: &sip.CSeq{
-			ID:     1,
-			Method: Method,
-		}, CallID: utils.RandNumString(10),
-		Addr: d.Addr,
-	}
-	requestMsg.From.Params["tag"] = utils.RandNumString(9)
-	return
-}
-func (d *Device) Query() int {
-	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)
-	return d.core.SendMessage(requestMsg).Code
-}
-func (d *Device) Control(channelIndex int, PTZCmd string) int {
-	channel := &d.Channels[channelIndex]
-	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.core.SendMessage(requestMsg).Code
-}
-func (d *Device) Invite(channelIndex int) int {
-	channel := &d.Channels[channelIndex]
-	port := d.core.OnInvite(channel)
-	if port == 0 {
-		channel.Connected = true
-		return 304
-	}
-	sdp := fmt.Sprintf(`v=0
-o=%s 0 0 IN IP4 %s
-s=Play
-c=IN IP4 %s
-t=0 0
-m=video %d RTP/AVP 96 98 97
-a=recvonly
-a=rtpmap:96 PS/90000
-a=rtpmap:97 MPEG4/90000
-a=rtpmap:98 H264/90000
-y=0200000001
-`, d.core.config.Serial, d.core.config.MediaIP, d.core.config.MediaIP, port)
-	sdp = strings.ReplaceAll(sdp, "\n", "\r\n")
-	invite := channel.CreateMessage(sip.INVITE)
-	invite.ContentType = "application/sdp"
-	invite.Contact = &sip.Contact{
-		Uri: sip.NewURI(fmt.Sprintf("%s@%s:%d", d.core.config.Serial, d.core.config.SipIP, d.core.config.SipPort)),
-	}
-	invite.Body = sdp
-	invite.ContentLength = len(sdp)
-	invite.Subject = fmt.Sprintf("%s:0200000001,34020000002020000001:0", channel.DeviceID)
-	response := d.core.SendMessage(invite)
-	fmt.Printf("invite response statuscode: %d\n", response.Code)
-	if response.Code == 200 {
-		channel.inviteRes = response.Data
-		channel.Connected = true
-		channel.Ack()
-	}
-	return response.Code
-}
-func (d *Device) Bye(channelIndex int) int {
-	channel := &d.Channels[channelIndex]
-	defer func() {
-		channel.inviteRes = nil
-		channel.Connected = false
-	}()
-	return channel.Bye().Code
-}
-func (c *Channel) Ack() {
-	ack := c.CreateMessage(sip.ACK)
-	ack.From = c.inviteRes.From
-	ack.To = c.inviteRes.To
-	ack.CallID = c.inviteRes.CallID
-	go c.device.core.Send(ack)
-}
-func (c *Channel) Bye() *Response {
-	bye := c.CreateMessage(sip.BYE)
-	bye.From = c.inviteRes.From
-	bye.To = c.inviteRes.To
-	bye.CallID = c.inviteRes.CallID
-	return c.device.core.SendMessage(bye)
-}

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

@@ -1,159 +0,0 @@
-package transaction
-
-import (
-	"fmt"
-	"time"
-
-	"github.com/Monibuca/plugin-gb28181/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, e *EventObj) error {
-	msg := e.msg
-
-	t.isReliable = msg.IsReliable()
-	t.origRequest = msg
-	t.state = ICT_CALLING
-
-	//发送出去之后，开启 timer
-	if msg.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() {
-			t.event <- &EventObj{
-				evt: TIMEOUT_A,
-				tid: t.id,
-			}
-		})
-	}
-
-	//事物定时器
-	t.timerB = time.AfterFunc(TimeB, func() {
-		t.event <- &EventObj{
-			evt: TIMEOUT_B,
-			tid: t.id,
-		}
-	})
-
-	return nil
-}
-
-func osip_ict_timeout_a_event(t *Transaction, e *EventObj) 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, e *EventObj) error {
-	t.Terminate()
-	return nil
-}
-
-func ict_rcv_1xx(t *Transaction, e *EventObj) error {
-	t.lastResponse = e.msg
-	t.state = ICT_PROCEEDING
-	return nil
-}
-func ict_rcv_2xx(t *Transaction, e *EventObj) error {
-	t.lastResponse = e.msg
-	t.Terminate()
-
-	return nil
-}
-func ict_rcv_3456xx(t *Transaction, e *EventObj) error {
-	t.lastResponse = e.msg
-	if t.state != ICT_COMPLETED {
-		/* not a retransmission */
-		/* automatic handling of ack! */
-		ack := ict_create_ack(t, e.msg)
-		t.ack = ack
-		_ = t.SipSend(t.ack)
-		t.Terminate()
-	}
-
-	/* start timer D (length is set to MAX (64*DEFAULT_T1 or 32000) */
-	t.timerD = time.AfterFunc(TimeD, func() {
-		t.event <- &EventObj{
-			evt: TIMEOUT_D,
-			tid: t.id,
-		}
-	})
-
-	t.state = ICT_COMPLETED
-
-	return nil
-}
-
-func ict_create_ack(t *Transaction, resp *sip.Message) *sip.Message {
-
-	return nil
-}
-
-func ict_retransmit_ack(t *Transaction, e *EventObj) 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, e *EventObj) error {
-	t.Terminate()
-	return nil
-}

transaction/fsm_ist.go

@@ -1,26 +0,0 @@
-package transaction
-
-func ist_rcv_invite(t *Transaction, e *EventObj) error {
-	return nil
-}
-func osip_ist_timeout_g_event(t *Transaction, e *EventObj) error {
-	return nil
-}
-func osip_ist_timeout_h_event(t *Transaction, e *EventObj) error {
-	return nil
-}
-func ist_snd_1xx(t *Transaction, e *EventObj) error {
-	return nil
-}
-func ist_snd_2xx(t *Transaction, e *EventObj) error {
-	return nil
-}
-func ist_snd_3456xx(t *Transaction, e *EventObj) error {
-	return nil
-}
-func ist_rcv_ack(t *Transaction, e *EventObj) error {
-	return nil
-}
-func osip_ist_timeout_i_event(t *Transaction, e *EventObj) error {
-	return nil
-}

transaction/fsm_nict.go

@@ -1,149 +0,0 @@
-package transaction
-
-import (
-	"fmt"
-	"time"
-)
-
-/*
-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, e *EventObj) error {
-	msg := e.msg
-	fmt.Println("nict request:", msg.GetMethod())
-
-	t.origRequest = msg
-	t.state = NICT_TRYING
-
-	err := t.SipSend(msg)
-	if err != nil {
-		t.Terminate()
-		return err
-	}
-
-	//发送出去之后，开启 timer
-	if msg.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() {
-			t.event <- &EventObj{
-				evt: TIMEOUT_E,
-				tid: t.id,
-			}
-		})
-	}
-
-	//事物定时器
-	t.timerF = time.AfterFunc(TimeF, func() {
-		t.event <- &EventObj{
-			evt: TIMEOUT_F,
-			tid: t.id,
-		}
-	})
-
-	return nil
-}
-
-//事物超时
-func osip_nict_timeout_f_event(t *Transaction, e *EventObj) error {
-	t.Terminate()
-	return nil
-}
-
-func osip_nict_timeout_e_event(t *Transaction, e *EventObj) 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, e *EventObj) error {
-	t.lastResponse = e.msg
-	t.state = NICT_PROCEEDING
-
-	//重置发送定时器
-	t.timerE.Reset(T2)
-
-	return nil
-}
-
-func nict_rcv_23456xx(t *Transaction, e *EventObj) error {
-	t.lastResponse = e.msg
-	t.state = NICT_COMPLETED
-	
-	if e.msg.IsReliable() {
-		//不设置timerK
-	} else {
-		t.timerK = time.AfterFunc(T4, func() {
-			t.event <- &EventObj{
-				evt: TIMEOUT_K,
-				tid: t.id,
-			}
-		})
-	}
-
-	return nil
-}
-
-func osip_nict_timeout_k_event(t *Transaction, e *EventObj) error {
-	t.Terminate()
-	return nil
-}

transaction/fsm_nist.go

@@ -1,110 +0,0 @@
-package transaction
-
-import (
-	"fmt"
-	"time"
-)
-
-/*
-                         |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, e *EventObj) error {
-	fmt.Println("rcv request: ", e.msg.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 = e.msg
-		t.state = NIST_TRYING
-		t.isReliable = e.msg.IsReliable()
-	}
-
-	return nil
-}
-
-func nist_snd_1xx(t *Transaction, e *EventObj) error {
-	t.lastResponse = e.msg
-	err := t.SipSend(t.lastResponse)
-	if err != nil {
-		return err
-	}
-
-	t.state = NIST_PROCEEDING
-	return nil
-}
-
-func nist_snd_23456xx(t *Transaction, e *EventObj) error {
-	t.lastResponse = e.msg
-	err := t.SipSend(t.lastResponse)
-	if err != nil {
-		return err
-	}
-	if t.state != NIST_COMPLETED {
-		if !t.isReliable {
-			t.timerJ = time.AfterFunc(T1*64, func() {
-				t.event <- &EventObj{
-					evt: TIMEOUT_J,
-					tid: t.id,
-				}
-			})
-		}
-	}
-
-	t.state = NIST_COMPLETED
-	return nil
-}
-func osip_nist_timeout_j_event(t *Transaction, e *EventObj) error {
-	t.Terminate()
-	return nil
-}

transaction/transaction.go

@@ -1,449 +0,0 @@
-package transaction
-
-import (
-	"context"
-	"fmt"
-	"net"
-	"time"
-
-	"github.com/Monibuca/plugin-gb28181/sip"
-	"github.com/Monibuca/plugin-gb28181/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(t *Transaction, e *EventObj) 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 {
-	ctx        context.Context //线程管理、其他参数
-	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
-	done       chan struct{}   //主动退出
-
-	state    State          //当前状态
-	event    chan *EventObj //输入的事件，带缓冲
-	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
-	timerB *time.Timer
-	timerD *time.Timer
-
-	//timer for nict
-	timerE *SipTimer
-	timerF *time.Timer
-	timerK *time.Timer
-
-	//timer for ist
-	timerG *time.Timer
-	timerH *time.Timer
-	timerI *time.Timer
-
-	//timer for nist
-	timerJ *time.Timer
-}
-
-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
-}
-
-//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() {
-	for {
-		select {
-		case e := <-ta.event:
-			//根据event调用对应的handler
-			fmt.Println("fsm run event:", e.evt.String())
-			core := ta.core
-			state := ta.state
-			evtHandlers, ok1 := core.handlers[state]
-			if !ok1 {
-				fmt.Println("invalid state:", ta.state.String())
-				break
-			}
-			f, ok2 := evtHandlers[e.evt]
-			if !ok2 {
-				fmt.Println("invalid handler for this event:", e.evt.String())
-				break
-			}
-			fmt.Printf("state:%s, event:%s\n", state.String(), e.evt.String())
-			err := f(ta, e)
-			if err != nil {
-				fmt.Printf("transaction run failed, state:%s, event:%s\n", state.String(), e.evt.String())
-			}
-		case <-ta.done:
-			fmt.Println("fsm exit")
-			return
-
-		case <-ta.ctx.Done():
-			fmt.Println("fsm killed")
-			return
-		}
-	}
-}
-
-//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
-	}
-
-	//关掉事物的线程
-	close(ta.done)
-
-	//TODO：某些timer需要检查并关掉，并且设置为nil
-
-	//remove ta from core
-	ta.core.removeTa <- 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 (
-	"github.com/Monibuca/plugin-gb28181/sip"
-	"fmt"
-	"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/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

@@ -1,93 +0,0 @@
-package tu
-
-import (
-	"fmt"
-	"github.com/Monibuca/plugin-gb28181/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/sip"
-	"github.com/Monibuca/plugin-gb28181/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

@@ -1,48 +0,0 @@
-package tu
-
-import (
-	"github.com/Monibuca/plugin-gb28181/transaction"
-	"sync"
-)
-
-//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 {}
-}

ui/dist/demo.html

@@ -1,19 +0,0 @@
-<meta charset="utf-8">
-<title>plugin-gb28181 demo</title>
-<script src="https://unpkg.com/vue"></script>
-<script src="./plugin-gb28181.umd.js"></script>
-
-<link rel="stylesheet" href="./plugin-gb28181.css">
-
-
-<div id="app">
-  <demo></demo>
-</div>
-
-<script>
-new Vue({
-  components: {
-    demo: plugin-gb28181
-  }
-}).$mount('#app')
-</script>

ui/dist/plugin-gb28181.css

@@ -1 +0,0 @@
-.arrow1[data-v-76558468]{grid-column:2;grid-row:1}.arrow2[data-v-76558468]{transform:rotate(90deg);grid-column:3;grid-row:2}.arrow3[data-v-76558468]{transform:rotate(180deg);grid-column:2;grid-row:3}.arrow4[data-v-76558468]{transform:rotate(270deg);grid-column:1;grid-row:2}.arrow5[data-v-76558468]{transform:rotate(-45deg);grid-column:1;grid-row:1}.arrow6[data-v-76558468]{transform:rotate(45deg);grid-column:3;grid-row:1}.arrow7[data-v-76558468]{transform:rotate(-135deg);grid-column:1;grid-row:3}.arrow8[data-v-76558468]{transform:rotate(135deg);grid-column:3;grid-row:3}.arrow9[data-v-76558468]{grid-column:2;grid-row:2}.container[data-v-76558468]{position:relative;height:350px}.control[data-v-76558468]{position:absolute;top:20px;right:0;display:grid;grid-template-columns:repeat(3,33.33%);grid-template-rows:repeat(3,33.33%);width:192px;height:192px}.control2[data-v-76558468]{top:210px}.control3[data-v-76558468]{top:260px}.control4[data-v-76558468]{top:310px}.control5[data-v-76558468]{top:360px}.control>[data-v-76558468]{cursor:pointer;fill:grey;width:50px;height:50px}.control5>[data-v-76558468]{margin-right:10px}.control2>[data-v-76558468],.control3>[data-v-76558468],.control4>[data-v-76558468]{width:40px;height:40px}.control>[data-v-76558468]:hover,.cycling[data-v-76558468]{fill:#0ff}.player-wrap[data-v-683c37a8]{width:100%;height:100%;border-radius:4px;box-shadow:0 0 5px #40d3fc,inset 0 0 5px #40d3fc,0 0 0 1px #40d3fc}.player-wrap video[data-v-683c37a8]{width:100%;height:100%}.flex-box[data-v-31458ad7]{display:flex;flex-flow:row wrap;align-content:flex-start}.flex-item[data-v-31458ad7]{flex:0 0 33.3333%;height:275px;box-sizing:border-box;padding:10px}

ui/package.json

@@ -1,15 +0,0 @@
-{
-  "name": "dashboard",
-  "version": "1.0.0",
-  "description": "dashboard of gb28181 plugin for monibuca",
-  "main": "index.js",
-  "scripts": {
-    "build": "vue-cli-service build --target lib --name plugin-gb28181"
-  },
-  "author": "dexter",
-  "license": "ISC",
-  "devDependencies": {
-    "@vue/cli-service": "^4.5.4",
-    "vue-template-compiler": "^2.6.12"
-  }
-}

ui/src/App.vue

@@ -1,245 +0,0 @@
-<template>
-    <div>
-        <div class="tabpanel" v-if="$parent.titleTabActive === 0">
-            <mu-data-table :data="Devices" :columns="columns">
-                <template #expand="prop">
-                    <mu-data-table
-                        :data="prop.row.Channels"
-                        :columns="columns2"
-                    >
-                        <template #default="{ row: item, $index }">
-                            <td>{{ item.DeviceID }}</td>
-                            <td>{{ item.Name }}</td>
-                            <td>{{ item.Manufacturer }}</td>
-                            <td>{{ item.Address }}</td>
-                            <td>{{ item.Status }}</td>
-                            <td>
-                                <mu-button
-                                    flat
-                                    v-if="item.Connected"
-                                    @click="ptz(prop.row.ID, $index, item)"
-                                    >云台
-                                </mu-button>
-                                <mu-button
-                                    flat
-                                    v-if="item.Connected"
-                                    @click="bye(prop.row.ID, $index)"
-                                    >断开</mu-button
-                                >
-                                <mu-button
-                                    v-else
-                                    flat
-                                    @click="invite(prop.row.ID, $index, item)"
-                                    >连接
-                                </mu-button>
-                            </td>
-                        </template>
-                    </mu-data-table>
-                </template>
-                <template #default="{ row: item }">
-                    <td>{{ item.ID }}</td>
-                    <td>{{ item.Addr }}</td>
-                    <td>{{ item.Channels ? item.Channels.length : 0 }}</td>
-                    <td>
-                        <StartTime :value="item.RegisterTime"></StartTime>
-                    </td>
-                    <td>
-                        <StartTime :value="item.UpdateTime"></StartTime>
-                    </td>
-                    <td>{{ item.Status }}</td>
-                </template>
-            </mu-data-table>
-        </div>
-        <div class="tabpanel" v-if="$parent.titleTabActive === 1">
-            <div class="flex-box">
-                <template v-for="(channel,index) in channelShowList">
-                    <div class="flex-item" :key="index" v-if="channel.DeviceID">
-                        <webrtc-player2 :stream-path="'gb28181/'+channel.DeviceID"></webrtc-player2>
-                    </div>
-                </template>
-            </div>
-            <template v-if="channelList.length > 0">
-                <Page :total="channelList.length" :page-size="pageInfo.onePageSize" @on-change="handlePageChange"></Page>
-            </template>
-        </div>
-        <webrtc-player
-            ref="player"
-            @ptz="sendPtz"
-            v-model="previewStreamPath"
-            :PublicIP="PublicIP"
-        ></webrtc-player>
-    </div>
-</template>
-<script>
-import WebrtcPlayer from "./components/Player";
-import WebrtcPlayer2 from "./components/Player2";
-import { getPTZCmd, PTZ_TYPE } from "./utils/ptz-cmd";
-
-export default {
-    components: {
-        WebrtcPlayer,
-        WebrtcPlayer2,
-    },
-    props: {
-        ListenAddr: String,
-    },
-    computed: {
-        PublicIP() {
-            return this.ListenAddr.split(":")[0];
-        },
-    },
-    data() {
-        return {
-            Devices: [],
-            previewStreamPath: false,
-            channelList: [],
-            channelShowList: [],
-            pageInfo: {
-                onePageSize: 9,
-                totalPage: 0,
-                currentPage: 0
-            },
-            context: {
-                id: null,
-                channel: 0,
-                item: null,
-            },
-            columns: Object.freeze(
-                [
-                    "设备号",
-                    "地址",
-                    "通道数",
-                    "注册时间",
-                    "更新时间",
-                    "状态",
-                ].map((title) => ({
-                    title,
-                }))
-            ),
-            columns2: Object.freeze([
-                "通道编号",
-                "名称",
-                "厂商",
-                "地址",
-                "状态",
-                "操作",
-            ]).map((title) => ({ title })),
-        };
-    },
-    created() {
-        this.fetchlist();
-    },
-    mounted() {
-        this.$parent.titleTabs = ["列表", "N路播放"];
-    },
-    methods: {
-        fetchlist() {
-            const listES = new EventSource(this.apiHost + "/gb28181/list");
-            listES.onmessage = (evt) => {
-                if (!evt.data) return;
-                this.Devices = JSON.parse(evt.data) || [];
-                this.Devices.sort((a, b) => (a.ID > b.ID ? 1 : -1));
-                let channelList = [];
-                this.Devices.forEach((device) => {
-                    const channels = device.Channels || [];
-                    if (channels.length > 0) {
-                        channelList = channelList.concat(channels);
-                    }
-                });
-                if (channelList.length > 0) {
-                    this.channelList = channelList;
-                    this.updatePageInfo(channelList.length);
-                }
-            };
-            this.$once("hook:destroyed", () => listES.close());
-        },
-        ptz(id, channel, item) {
-            this.context = {
-                id,
-                channel,
-                item,
-            };
-            this.previewStreamPath = true;
-            this.$nextTick(() =>
-                this.$refs.player.play("gb28181/" + item.DeviceID)
-            );
-        },
-        sendPtz(options) {
-            const ptzCmd = getPTZCmd(options);
-            const ptzCmdStop = getPTZCmd({ type: PTZ_TYPE.stop });
-            this.ajax
-                .get("/gb28181/control", {
-                    id: this.context.id,
-                    channel: this.context.channel,
-                    ptzcmd: ptzCmd,
-                })
-                .then((x) => {
-                    if (
-                        options.type === PTZ_TYPE.stop ||
-                        options.cycle === true
-                    ) {
-                        return;
-                    }
-                    setTimeout(() => {
-                        this.ajax.get("/gb28181/control", {
-                            id: this.context.id,
-                            channel: this.context.channel,
-                            ptzcmd: ptzCmdStop,
-                        });
-                    }, 500);
-                });
-        },
-
-        handlePageChange(page){
-            let showList = [];
-            const onePageSize = this.pageInfo.onePageSize;
-            const firstIndex = page * onePageSize - onePageSize;
-            const lastIndex = page * onePageSize - 1 ;
-            showList = this.channelList.filter((item, index) => {
-                return index >= firstIndex && index <= lastIndex;
-            });
-
-            this.channelShowList = showList;
-            if(showList.length > 0){
-                this.pageInfo.currentPage = page;
-            }
-        },
-        updatePageInfo(totalSize){
-            const onePageSize = this.pageInfo.onePageSize;
-            let totalPage = totalSize / onePageSize;
-
-            if (totalSize % onePageSize > 0) {
-                totalPage = totalPage + 1;
-            }
-            this.pageInfo.totalPage = totalPage;
-            if(this.pageInfo.currentPage === 0){
-                this.handlePageChange(1)
-            }
-        },
-        invite(id, channel, item) {
-            this.ajax.get("/gb28181/invite", { id, channel }).then((x) => {
-                item.Connected = true;
-            });
-        },
-        bye(id, channel, item) {
-            this.ajax.get("/gb28181/bye", { id, channel }).then((x) => {
-                item.Connected = false;
-            });
-        },
-    },
-};
-</script>
-<style scoped>
-.flex-box {
-    display: flex;
-    flex-flow: row wrap;
-    align-content: flex-start;
-}
-
-.flex-item {
-    flex: 0 0 33.3333%;
-    height: 275px;
-    box-sizing: border-box;
-    padding: 10px;
-}
-</style>

ui/src/components/Player.vue

@@ -1,237 +0,0 @@
-<template>
-  <Modal
-    v-bind="$attrs"
-    draggable
-    width="750"
-    v-on="$listeners"
-    :title="streamPath"
-    @on-ok="onClosePreview"
-    @on-cancel="onClosePreview"
-  >
-    <div class="container">
-      <video ref="webrtc" :srcObject.prop="stream" width="488" height="275" autoplay muted controls></video>
-      <div class="control">
-        <svg v-for="n in 8" @click="ptzCmdDirection(n)" :class="'arrow'+n" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="64" height="64"><defs><style type="text/css"></style></defs><path d="M682.666667 955.733333H341.333333a17.066667 17.066667 0 0 1-17.066666-17.066666V529.066667H85.333333a17.066667 17.066667 0 0 1-12.066133-29.1328l426.666667-426.666667a17.0496 17.0496 0 0 1 24.132266 0l426.666667 426.666667A17.066667 17.066667 0 0 1 938.666667 529.066667H699.733333v409.6a17.066667 17.066667 0 0 1-17.066666 17.066666z m-324.266667-34.133333h307.2V512a17.066667 17.066667 0 0 1 17.066667-17.066667h214.801066L512 109.4656 126.532267 494.933333H341.333333a17.066667 17.066667 0 0 1 17.066667 17.066667v409.6z" p-id="6849"></path></svg>
-        <svg @mousedown="startPtzCmdCycle" @mouseup="stopPtzCmdCycle" class="arrow9" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M512 960c-210.96 0-395.36-149.68-438.47-355.91-2.98-14.24 6.16-28.21 20.4-31.19 14.22-2.93 28.21 6.15 31.18 20.41C163.15 775.25 325.86 907.29 512 907.29s348.85-132.05 386.89-313.98c2.99-14.26 16.97-23.35 31.19-20.41 14.24 2.99 23.38 16.95 20.41 31.19C907.36 810.32 722.95 960 512 960zM927.48 466.94c-12.61 0-23.75-9.07-25.95-21.91C869.06 254.78 705.24 116.71 512 116.71c-193.23 0-357.05 138.07-389.52 328.32-2.45 14.35-16.08 24.01-30.41 21.54-14.35-2.46-23.99-16.07-21.55-30.42C107.33 220.51 293 64 512 64c219.01 0 404.68 156.51 441.48 372.15 2.44 14.35-7.21 27.97-21.54 30.42-1.5 0.25-3 0.37-4.46 0.37z"  /><path d="M96.52 466.94c-9.11 0-17.97-4.72-22.85-13.18-7.28-12.61-2.96-28.72 9.64-36l131.76-76.07c12.6-7.26 28.73-2.96 36 9.65 7.28 12.61 2.96 28.72-9.64 36l-131.76 76.07a26.18 26.18 0 0 1-13.15 3.53zM792.95 701.14c-9.11 0-17.96-4.72-22.85-13.18-7.28-12.6-2.96-28.72 9.64-36l131.76-76.09c12.58-7.28 28.72-2.95 36 9.65 7.27 12.6 2.96 28.72-9.65 36l-131.75 76.1a26.271 26.271 0 0 1-13.15 3.52z"  /></svg>
-      </div>
-      <div class="control control2">
-        <svg @click="ptzCmd(ptzType.zoomFar)" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M994.990643 859.352971L713.884166 578.246494A381.208198 381.208198 0 0 0 767.307984 383.653992C767.307984 171.765089 595.542895 0 383.653992 0S0 171.765089 0 383.653992s171.765089 383.653992 383.653992 383.653992c71.119859 0 137.507985-19.694238 194.592502-53.423818l281.106477 281.090491a95.913498 95.913498 0 1 0 135.637672-135.621686zM383.653992 671.394486c-158.912681 0-287.740494-128.827813-287.740494-287.740494S224.741311 95.913498 383.653992 95.913498s287.740494 128.827813 287.740494 287.740494-128.827813 287.740494-287.740494 287.740494z m159.85583-335.697243h-111.899081v-111.899081a47.956749 47.956749 0 1 0-95.913498 0v111.899081h-111.899081a47.956749 47.956749 0 1 0 0 95.913498h111.899081v111.899081a47.956749 47.956749 0 1 0 95.913498 0v-111.899081h111.899081a47.956749 47.956749 0 1 0 0-95.913498z"  /></svg>
-        <svg @click="ptzCmd(ptzType.zoomNear)" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M994.990643 859.352971L713.884166 578.246494A381.208198 381.208198 0 0 0 767.307984 383.653992C767.307984 171.765089 595.542895 0 383.653992 0S0 171.765089 0 383.653992s171.765089 383.653992 383.653992 383.653992c71.119859 0 137.507985-19.694238 194.592502-53.423818l281.106477 281.090491a95.913498 95.913498 0 1 0 135.637672-135.621686zM383.653992 671.394486c-158.912681 0-287.740494-128.827813-287.740494-287.740494S224.741311 95.913498 383.653992 95.913498s287.740494 128.827813 287.740494 287.740494-128.827813 287.740494-287.740494 287.740494z m159.85583-335.697243H223.798162a47.956749 47.956749 0 1 0 0 95.913498h319.71166a47.956749 47.956749 0 1 0 0-95.913498z"  /></svg>
-      </div>
-      <div class="control control3">
-        <svg @click="ptzCmd(ptzType.apertureFar)" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M956.39 400.827C922.164 266.675 828.186 155.703 701.502 99.874l94.522 443.782L956.39 400.827zM206.208 189.167C106.183 286.191 56.845 424.181 72.696 562.659l351.347-309.096-217.835-64.396zM643.118 78.847a446.363 446.363 0 0 0-138.947-16.775 448.047 448.047 0 0 0-250.583 86.934l437.868 146.949-48.338-217.108zM83.786 623.979c34.443 133.772 128.248 244.407 254.583 300.291l-95.915-426.55L83.786 623.979zM969.893 496.089a372.746 372.746 0 0 0-2.37-34.138l-329.972 303.78 196.157 69.256c91.522-88.456 141.056-211.704 136.185-338.898zM396.862 945.166a447.857 447.857 0 0 0 139.077 16.766 447.784 447.784 0 0 0 250.322-86.718L349.286 733.05l47.576 212.116z"  /><path fill="#333333" d="M397.253 471.171h245.668c22.593 0 40.923 18.32 40.923 40.913 0 22.592-18.33 40.922-40.923 40.922H397.253c-22.592 0-40.922-18.33-40.922-40.922 0-22.593 18.33-40.913 40.922-40.913z"  /><path fill="#333333" d="M479.17 634.879V389.21c0-22.593 18.32-40.923 40.913-40.923s40.923 18.33 40.923 40.923v245.668c0 22.592-18.33 40.922-40.923 40.922s-40.913-18.329-40.913-40.921z"  /></svg>
-        <svg @click="ptzCmd(ptzType.apertureNear)" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M956.39 400.827C922.164 266.675 828.186 155.703 701.502 99.874l94.522 443.782L956.39 400.827z m-750.182-211.66C106.183 286.191 56.845 424.181 72.696 562.659l351.347-309.096-217.835-64.396z m436.91-110.32a446.363 446.363 0 0 0-138.947-16.775 448.047 448.047 0 0 0-250.583 86.934l437.868 146.949-48.338-217.108zM83.786 623.979c34.443 133.772 128.248 244.407 254.583 300.291l-95.915-426.55L83.786 623.979z m886.107-127.89a372.746 372.746 0 0 0-2.37-34.138l-329.972 303.78 196.157 69.256c91.522-88.456 141.056-211.704 136.185-338.898zM396.862 945.166a447.857 447.857 0 0 0 139.077 16.766 447.784 447.784 0 0 0 250.322-86.718L349.286 733.05l47.576 212.116z m0.391-474.039h245.668c22.593 0 40.923 18.32 40.923 40.912 0 22.593-18.33 40.923-40.923 40.923H397.253c-22.592 0-40.922-18.33-40.922-40.923 0-22.592 18.33-40.912 40.922-40.912z"  /></svg>
-      </div>
-      <div class="control control4">
-        <svg @click="ptzCmd(ptzType.focusFar)" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M849.07153297 646.81872559c9.30432153 0 17.26391602 3.30249 23.82934617 9.88769507 6.60992408 6.59509253 9.88769508 14.52502465 9.88769508 23.79473901v101.14617896c0 27.90801978-9.87780761 51.70275879-29.61364722 71.47814965-19.75067115 19.77539086-43.56518578 29.66308594-71.48803711 29.66308594h-101.1165166c-9.32409644 0-17.25402856-3.29754663-23.83428954-9.9865725-6.59509253-6.49127173-9.90252662-14.52502465-9.90252662-23.7947383 0-9.26971435 3.30743408-17.20458984 9.90252662-23.79473901 6.58026099-6.59014916 14.51019311-9.88769508 23.83428954-9.88769507h101.1165166c9.29937744 0 17.26391602-3.29754663 23.82440137-9.88769579 6.61486816-6.59014916 9.88769508-14.52008057 9.88769579-23.89361573v-101.04235815c0-9.36859107 3.28765845-17.30346656 9.89758254-23.78979493 6.57531762-6.69396997 14.52502465-9.99151587 23.83923363-9.99151587l-0.06427025 0.09887671zM242.38726782 141.3103025h101.10168506c9.30432153 0 17.2688601 3.29754663 23.819458 9.88769578 6.62475562 6.59509253 9.89758325 14.52502465 9.89758254 23.7947383 0 9.37353516-3.27282691 17.30346656-9.89758254 23.79473901-6.5505979 6.69396997-14.51513648 9.9865725-23.81451463 9.9865725h-101.10168433c-9.31915307 0-17.2688601 3.19372583-23.82934547 9.88769508-6.62475562 6.49127173-9.91241479 14.52502465-9.91241479 23.794739v101.04235816c0 9.36859107-3.28271508 17.30346656-9.89758324 23.89361573-6.57531762 6.59014916-14.51513648 9.88769508-23.81451392 9.88769507-9.31420898 0-17.25402856-3.29754663-23.82934547-9.88769507C144.49908423 360.80230689 141.21142578 352.86743141 141.21142578 343.49884033V242.45648217c0-27.91296386 9.86792016-51.70275879 29.62353539-71.47814965 19.75067115-19.77539086 43.57507324-29.66308594 71.48803711-29.66308594h0.06426954zM174.9877932 646.81872559c9.30432153 0 17.24414039 3.30249 23.81451393 9.88769507 6.62475562 6.59509253 9.90252662 14.52502465 9.90252662 23.79473901v101.14617896c0 9.26971435 3.27282691 17.19964576 9.89758324 23.78979492 6.57531762 6.59014916 14.51513648 9.88769508 23.81451393 9.88769579h101.12640404c9.29937744 0 17.25402856 3.29754663 23.82934547 9.88769507 6.60992408 6.59014916 9.88769508 14.52502465 9.88769579 23.89361572 0 9.26971435-3.27777099 17.20458984-9.88769579 23.79473901-6.57531762 6.59014916-14.52996803 9.88769508-23.82934547 9.88769508H242.41693092c-27.91296386 0-51.71264625-9.88769508-71.47814895-29.66308594-19.75561523-19.67651344-29.62353539-43.57012915-29.62353539-71.47814965v-101.04235816c0-9.26971435 3.27282691-17.30346656 9.88769507-23.89361573 6.58026099-6.59509253 14.52502465-9.88769508 23.81451464-9.88769507h-0.02966309zM680.57037329 141.3103025h101.1165166c27.92285133 0 51.73736596 9.88769508 71.48803711 29.56420922 19.73583961 19.77539086 29.61364722 43.57012915 29.61364722 71.47814965v101.14617896c0 9.26971435-3.27777099 17.30346656-9.88769508 23.78979493-6.56542945 6.69396997-14.52502465 9.88769508-23.82934617 9.88769506-9.29937744 0-17.26391602-3.19372583-23.82440139-9.88769506-6.61486816-6.48632836-9.88769508-14.52008057-9.88769579-23.78979493V242.35266137c0-9.26971435-3.28765845-17.19964576-9.90252661-23.78979492-6.57037354-6.59509253-14.52008057-9.88769508-23.83428955-9.88769579h-101.10168433c-9.31420898 0-17.2688601-3.29754663-23.82934618-9.88769507-6.60992408-6.59509253-9.89758325-14.52502465-9.89758254-23.79473902 0-9.37353516 3.28765845-17.30346656 9.89758254-23.89361571 6.56048608-6.59014916 14.51513648-9.88769508 23.82934618-9.88769508l0.04943799 0.09887672z" /></svg>
-        <svg @click="ptzCmd(ptzType.focusNear)" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg"><path d="M512 170.666667A341.333333 341.333333 0 1 1 170.666667 512 341.333333 341.333333 0 0 1 512 170.666667m0-42.666667a384 384 0 1 0 384 384A384 384 0 0 0 512 128z"  /><path fill="#333333" d="M298.666667 533.333333H170.666667a21.333333 21.333333 0 0 1 0-42.666666h128a21.333333 21.333333 0 0 1 0 42.666666zM853.333333 533.333333h-128a21.333333 21.333333 0 0 1 0-42.666666h128a21.333333 21.333333 0 0 1 0 42.666666zM512 320a21.333333 21.333333 0 0 1-21.333333-21.333333V170.666667a21.333333 21.333333 0 0 1 42.666666 0v128a21.333333 21.333333 0 0 1-21.333333 21.333333zM512 874.666667a21.333333 21.333333 0 0 1-21.333333-21.333334v-128a21.333333 21.333333 0 0 1 42.666666 0v128a21.333333 21.333333 0 0 1-21.333333 21.333334z"  /></svg>
-      </div>
-      <div class="control5">
-        <i-select v-model="ptzPositionIndex" style="width: 100px">
-          <Option v-for="n in 10" :value="n" :key="n">预置点{{n}}</Option>
-        </i-select>
-        <i-button type="primary" @click="ptzCmd(ptzType.setPos)">设置</i-button>
-        <i-button type="success" @click="ptzCmd(ptzType.calPos)">调用</i-button>
-        <i-button type="error" @click="ptzCmd(ptzType.delPos)">删除</i-button>
-        速度：
-        <InputNumber :max="10" :min="1" v-model="ptzSpeed"></InputNumber>
-      </div>
-    </div>
-    <div slot="footer">
-      <mu-badge v-if="remoteSDP">
-        <a slot="content" :href="remoteSDPURL" download="remoteSDP.txt">remoteSDP</a>
-      </mu-badge>
-      <mu-badge v-if="localSDP">
-        <a slot="content" :href="localSDPURL" download="localSDP.txt">localSDP</a>
-      </mu-badge>
-    </div>
-  </Modal>
-</template>
-<script>
-  import {PTZ_TYPE} from "../utils/ptz-cmd";
-  const PTZ_DIRECTION_ARRAY = [PTZ_TYPE.up,PTZ_TYPE.right,PTZ_TYPE.down,PTZ_TYPE.left,PTZ_TYPE.leftUp,PTZ_TYPE.rightUp,PTZ_TYPE.leftDown,PTZ_TYPE.rightDown];
-  let pc = null;
-export default {
-  data() {
-    return {
-      iceConnectionState: pc && pc.iceConnectionState,
-      stream: null,
-      localSDP: "",
-      remoteSDP: "",
-      remoteSDPURL: "",
-      localSDPURL: "",
-      streamPath: "",
-      ptzSpeed:5,
-      ptzPositionIndex:1,
-      ptzType:PTZ_TYPE,
-    };
-  },
-  props:{
-    PublicIP:String
-  },
-    methods: {
-        async play(streamPath) {
-            pc = new RTCPeerConnection();
-            pc.addTransceiver('video',{
-              direction:'recvonly'
-            })
-            this.streamPath = streamPath;
-            pc.onsignalingstatechange = e => {
-                //console.log(e);
-            };
-            pc.oniceconnectionstatechange = e => {
-                this.$toast.info(pc.iceConnectionState);
-                this.iceConnectionState = pc.iceConnectionState;
-            };
-            pc.onicecandidate = event => {
-                console.log(event)
-            };
-            pc.ontrack = event => {
-               // console.log(event);
-                if (event.track.kind == "video")
-                    this.stream = event.streams[0];
-            };
-            await pc.setLocalDescription(await pc.createOffer());
-            this.localSDP = pc.localDescription.sdp;
-            this.localSDPURL = URL.createObjectURL(
-                new Blob([this.localSDP], { type: "text/plain" })
-            );
-            const result = await this.ajax({
-                type: "POST",
-                processData: false,
-                data: JSON.stringify(pc.localDescription.toJSON()),
-                url: "/webrtc/play?streamPath=" + this.streamPath,
-                dataType: "json"
-            });
-            if (result.errmsg) {
-                this.$toast.error(result.errmsg);
-                return;
-            } else {
-                this.remoteSDP = result.sdp;
-                this.remoteSDPURL = URL.createObjectURL(new Blob([this.remoteSDP], { type: "text/plain" }));
-            }
-            await pc.setRemoteDescription(new RTCSessionDescription(result));
-        },
-        ptzCmdDirection(direction){
-          const type = PTZ_DIRECTION_ARRAY[direction-1];
-          this.ptzCmd(type);
-        },
-        startPtzCmdCycle(){
-          this.ptzCmd(PTZ_TYPE.right,true);
-        },
-        stopPtzCmdCycle(){
-          this.ptzCmd(PTZ_TYPE.stop);
-        },
-        ptzCmd(type,isCycling){
-          this.$emit('ptz',{type:type,speed:this.ptzSpeed,index:this.ptzPositionIndex,cycle:isCycling})
-        },
-        onClosePreview() {
-            pc.close();
-        }
-    }
-};
-</script>
-<style scoped>
-  .arrow1{
-    grid-column: 2;
-    grid-row: 1;
-  }
-  .arrow2{
-    transform: rotate(90deg);
-    grid-column: 3;
-    grid-row: 2;
-  }
-  .arrow3{
-    transform: rotate(180deg);
-    grid-column: 2;
-    grid-row: 3;
-  }
-  .arrow4{
-    transform: rotate(270deg);
-    grid-column: 1;
-    grid-row: 2;
-  }
-
-  .arrow5{
-    transform: rotate(-45deg);
-    grid-column: 1;
-    grid-row: 1;
-  }
-
-  .arrow6{
-    transform: rotate(45deg);
-    grid-column: 3;
-    grid-row: 1;
-  }
-
-  .arrow7{
-    transform: rotate(-135deg);
-    grid-column: 1;
-    grid-row: 3;
-  }
-
-  .arrow8{
-    transform: rotate(135deg);
-    grid-column: 3;
-    grid-row: 3;
-  }
-
-  .arrow9{
-    grid-column: 2;
-    grid-row: 2;
-  }
-
-.container {
-  position: relative;
-  height: 350px;
-}
-.control {
-  position: absolute;
-  top: 20px;
-  right: 0;
-  display: grid;
-  grid-template-columns: repeat(3, 33.33%);
-  grid-template-rows: repeat(3, 33.33%);
-  width: 192px;
-  height: 192px;
-}
-
-.control2{
-  top: 210px;
-}
-
-.control3{
-  top: 260px;
-}
-
-.control4{
-  top: 310px;
-}
-
-.control5{
-  top: 360px;
-}
-
-.control >* {
-  cursor: pointer;
-  fill: gray;
-  width: 50px;
-  height: 50px;
-}
-
-.control5 >*{
-  margin-right: 10px;
-}
-
-.control2 >*,.control3 >*,.control4 >*{
-  width: 40px;
-  height: 40px;
-}
-
-.control >*:hover,.cycling{
-  fill: cyan
-}
-
-
-
-</style>

ui/src/components/Player2.vue

@@ -1,110 +0,0 @@
-<template>
-    <div class="player-wrap">
-        <template v-if="rtcStream">
-            <video :srcObject.prop="rtcStream" autoplay muted controls></video>
-        </template>
-    </div>
-</template>
-
-<script>
-    export default {
-        name: "WebrtcPlayer",
-        rtcPeerConnection: null,
-        data() {
-            return {
-                iceConnectionState: '',
-                rtcPeerConnectionInit: false,
-                rtcStream: null
-            }
-        },
-        props: {
-            streamPath: {
-                type: String,
-                default: ''
-            }
-        },
-        async created() {
-            await this.initRtcPeerConnection();
-            console.log('initRtcPeerConnectioned');
-            if (this.streamPath) {
-                await this.play(this.streamPath);
-                console.log('played');
-            }
-        },
-        methods: {
-            async initRtcPeerConnection() {
-                const rtcPeerConnection = new RTCPeerConnection();
-
-                rtcPeerConnection.addTransceiver('video', {
-                    direction: "recvonly"
-                });
-
-                rtcPeerConnection.onsignalingstatechange = e => {
-                    console.log('onsignalingstatechange', e);
-                };
-
-                rtcPeerConnection.oniceconnectionstatechange = e => {
-                    console.log('oniceconnectionstatechange', rtcPeerConnection.iceConnectionState);
-                };
-
-                rtcPeerConnection.onicecandidate = event => {
-                    console.log('onicecandidate', event);
-                };
-
-                rtcPeerConnection.ontrack = event => {
-                    console.log('ontrack', event);
-                    if (event.track.kind === "video") {
-                        this.rtcStream = event.streams[0];
-                    }
-                };
-
-                const rtcSessionDescriptionInit = await rtcPeerConnection.createOffer();
-                await rtcPeerConnection.setLocalDescription(rtcSessionDescriptionInit);
-                this.rtcPeerConnectionInit = true;
-                this.$options.rtcPeerConnection = rtcPeerConnection;
-            },
-
-            //
-            async play(streamPath) {
-                const rtcPeerConnection = this.$options.rtcPeerConnection;
-                const localDescriptionData = rtcPeerConnection.localDescription.toJSON();
-                const result = await this.ajax({
-                    type: "POST",
-                    processData: false,
-                    data: localDescriptionData,
-                    url: "/webrtc/play?streamPath=" + streamPath,
-                    dataType: "json"
-                });
-                if (result.error) {
-                    return;
-                }
-                //
-                rtcPeerConnection.setRemoteDescription(new RTCSessionDescription({
-                    type: result.type,
-                    sdp: result.sdp
-                }));
-            },
-            close() {
-                const rtcPeerConnection = this.$options.rtcPeerConnection;
-                rtcPeerConnection && rtcPeerConnection.close();
-            }
-        },
-        destroyed() {
-            this.close();
-        }
-    }
-</script>
-
-<style scoped>
-    .player-wrap {
-        width: 100%;
-        height: 100%;
-        border-radius: 4px;
-        box-shadow: 0 0 5px #40d3fc, inset 0 0 5px #40d3fc, 0 0 0 1px #40d3fc;
-    }
-
-    .player-wrap video {
-        width: 100%;
-        height: 100%;
-    }
-</style>

ui/src/utils/ptz-cmd.js

@@ -1,172 +0,0 @@
-/**
- * Date:2020/11/9
- * Desc:
- */
-/**
- * Date:2020/11/2
- * Desc: ptz cmd 封装
- * cmd[0] //首字节以05H开头
- * cmd[1] //组合码，高4位为版本信息v1.0,版本信息0H，低四位为校验码
- *        //  校验码 = (cmd[0]的高4位+cmd[0]的低4位+cmd[1]的高4位)%16
- * cmd[2] //地址的低8位？？？什么地址，地址范围000h ~ FFFh(0~4095),其中000h为广播地址
- * cmd[3] //指令码
- * cmd[4] //数据1,水平控制速度、聚焦速度
- * cmd[5] //数据2，垂直控制速度、光圈速度
- * cmd[6] // 高4位为数据3=变倍控制速度，低4位为地址高4位
- */
-
-const PTZ_TYPE = {
-    stop: 'stop',
-    right: 'right',
-    left: 'left',
-    up: 'up',
-    down: 'down',
-    leftUp: 'leftUp',
-    leftDown: 'leftDown',
-    rightUp: 'rightUp',
-    rightDown: 'rightDown',
-    zoomFar: 'zoomFar',
-    zoomNear: 'zoomNear',
-    apertureFar: 'apertureFar',
-    apertureNear: 'apertureNear',
-    focusFar: 'focusFar',
-    focusNear: 'focusNear',
-    setPos: 'setPos',
-    calPos: 'calPos',
-    delPos: 'delPos'
-};
-
-const PTZ_CMD_TYPE = {
-    stop: 0x00,
-
-    right: 0x01,
-    left: 0x02,
-    up: 0x08,
-    down: 0x04,
-
-    leftUp: 0x0A,
-    leftDown: 0x06,
-    rightUp: 0x09,
-    rightDown: 0x05,
-
-    zoomFar: 0x10, // 镜头 放大
-    zoomNear: 0x20,  // 镜头 缩小
-
-    apertureFar: 0x48, // 光圈 缩小
-    apertureNear: 0x44, // 光圈 放大
-
-    focusFar: 0x42, // 聚焦 近
-    focusNear: 0x41, // 聚焦 远
-
-    setPos: 0x81,
-    calPos: 0x82,
-    delPos: 0x83
-};
-
-const SPEED_ARRAY = [0x19, 0x32, 0x4b, 0x64, 0x7d, 0x96, 0xAF, 0xC8, 0xE1, 0xFA];
-const POSITION_ARRAY = [0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x10];
-
-// 获取 direction 方向型
-/**
- *
- * @param options
- *        type:
- *        speed:default 5
- *        index:
- * @returns {string}
- */
-function getPTZCmd(options) {
-    const {type, speed, index} = options;
-    const ptzSpeed = getPTZSpeed(speed);
-    let indexValue3, indexValue4, indexValue5, indexValue6;
-    indexValue3 = PTZ_CMD_TYPE[type];
-    switch (type) {
-        case PTZ_TYPE.up:
-        case PTZ_TYPE.down:
-        case PTZ_TYPE.apertureFar:
-        case PTZ_TYPE.apertureNear:
-            indexValue5 = ptzSpeed;
-            break;
-        case PTZ_TYPE.right:
-        case PTZ_TYPE.left:
-        case PTZ_TYPE.focusFar:
-        case PTZ_TYPE.focusNear:
-            indexValue4 = ptzSpeed;
-            break;
-        case PTZ_TYPE.leftUp:
-        case PTZ_TYPE.leftDown:
-        case PTZ_TYPE.rightUp:
-        case PTZ_TYPE.rightDown:
-            indexValue4 = ptzSpeed;
-            indexValue5 = ptzSpeed;
-            break;
-        case PTZ_TYPE.zoomFar:
-        case PTZ_TYPE.zoomNear:
-            indexValue6 = 0x10;
-            break;
-        case PTZ_TYPE.calPos:
-        case PTZ_TYPE.delPos:
-        case PTZ_TYPE.setPos:
-            indexValue5 = getPTZPositionIndex(index);
-            break;
-        default:
-            break;
-    }
-    return ptzCmdToString(indexValue3, indexValue4, indexValue5, indexValue6);
-}
-
-function getPTZSpeed(speed) {
-    speed = speed || 5;
-    const speedIndex = speed - 1;
-    const ptzSpeed = SPEED_ARRAY[speedIndex] || SPEED_ARRAY[4];
-    return ptzSpeed;
-}
-
-function getPTZPositionIndex(index) {
-    return POSITION_ARRAY[index - 1];
-}
-
-function ptzCmdToString(indexValue3, indexValue4, indexValue5, indexValue6) {
-    //
-    let cmd = Buffer.alloc(8);
-    // 首字节以05H开头
-    cmd[0] = 0xA5;
-    // 组合码，高4位为版本信息v1.0,版本信息0H，低四位为校验码
-    cmd[1] = 0x0F;
-    // 校验码 = (cmd[0]的高4位+cmd[0]的低4位+cmd[1]的高4位)%16
-    cmd[2] = 0x01;
-    //
-    if (indexValue3) {
-        cmd[3] = indexValue3;
-    }
-    if (indexValue4) {
-        cmd[4] = indexValue4;
-    }
-    if (indexValue5) {
-        cmd[5] = indexValue5;
-    }
-    if (indexValue6) {
-        cmd[6] = indexValue6;
-    }
-
-    cmd[7] = (cmd[0] + cmd[1] + cmd[2] + cmd[3] + cmd[4] + cmd[5] + cmd[6]) % 256;
-
-    return bytes2HexString(cmd);
-}
-
-function bytes2HexString(byte) {
-    let hexs = "";
-    for (let i = 0; i < byte.length; i++) {
-        let hex = (byte[i]).toString(16);
-        if (hex.length === 1) {
-            hex = '0' + hex;
-        }
-        hexs += hex.toUpperCase();
-    }
-    return hexs;
-}
-
-export {
-    getPTZCmd,
-    PTZ_TYPE
-}

utils/buffer.go

@@ -0,0 +1,105 @@
+package utils
+
+import (
+	"encoding/binary"
+	"errors"
+	"io"
+)
+
+type IOBuffer struct {
+	buf []byte // contents are the bytes buf[off : len(buf)]
+	off int    // read at &buf[off], write at &buf[len(buf)]
+}
+
+func (b *IOBuffer) Next(n int) []byte {
+	m := b.Len()
+	if n > m {
+		n = m
+	}
+	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 (b *IOBuffer) Skip(n int) (err error) {
+	_, err = b.ReadN(n)
+	return
+}
+
+func (b *IOBuffer) Uint32() (uint32, error) {
+	if b.Len() > 3 {
+		return binary.BigEndian.Uint32(b.Next(4)), nil
+	}
+	return 0, io.EOF
+}
+
+func (b *IOBuffer) ReadN(length int) ([]byte, error) {
+	if b.Len() >= length {
+		return b.Next(length), nil
+	}
+	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) {
+	l := copy(b.buf, b.buf[b.off:])
+	b.buf = append(b.buf[:l], p...)
+	b.off = 0
+	// println(b.buf, b.off, b.buf[b.off], b.buf[b.off+1], b.buf[b.off+2], b.buf[b.off+3])
+	return len(p), nil
+	// defer func() {
+	// 	if recover() != nil {
+	// 		panic(ErrTooLarge)
+	// 	}
+	// }()
+	// l := len(p)
+	// oldLen := len(b.buf)
+	// m, ok := b.tryGrowByReslice(l)
+	// if !ok {
+	// 	m = oldLen - b.off
+	// 	buf := append(append(([]byte)(nil), b.buf[b.off:]...), p...)
+	// 	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

@@ -0,0 +1,344 @@
+package utils
+
+import (
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"io"
+)
+
+const (
+	UDPTransfer        int = 0
+	TCPTransferActive  int = 1
+	TCPTransferPassive int = 2
+	LocalCache         int = 3
+
+	StreamTypeH264 = 0x1b
+	StreamTypeH265 = 0x24
+	G711A          = 0x90 //PCMA
+	G7221AUDIOTYPE = 0x92
+	G7231AUDIOTYPE = 0x93
+	G729AUDIOTYPE  = 0x99
+
+	StreamIDVideo = 0xe0
+	StreamIDAudio = 0xc0
+
+	StartCodePS        = 0x000001ba
+	StartCodeSYS       = 0x000001bb
+	StartCodeMAP       = 0x000001bc
+	StartCodeVideo     = 0x000001e0
+	StartCodeAudio     = 0x000001c0
+	PrivateStreamCode  = 0x000001bd
+	MEPGProgramEndCode = 0x000001b9
+
+	RTPHeaderLength    int = 12
+	PSHeaderLength     int = 14
+	SystemHeaderLength int = 18
+	MAPHeaderLength    int = 24
+	PESHeaderLength    int = 19
+	RtpLoadLength      int = 1460
+	PESLoadLength      int = 0xFFFF
+	MAXFrameLen        int = 1024 * 1024 * 2
+)
+
+var (
+	ErrNotFoundStartCode = errors.New("not found the need start code flag")
+	ErrMarkerBit         = errors.New("marker bit value error")
+	ErrFormatPack        = errors.New("not package standard")
+	ErrParsePakcet       = errors.New("parse ps packet error")
+)
+
+type Pusher interface {
+	PushVideo(uint32, uint32, []byte)
+	PushAudio(uint32, []byte)
+	PrintDump(string)
+}
+
+/*
+ This implement from VLC source code
+ notes: https://github.com/videolan/vlc/blob/master/modules/mux/mpeg/bits.h
+*/
+
+//bitsBuffer bits buffer
+// type bitsBuffer struct {
+// 	iSize int
+// 	iData int
+// 	iMask uint8
+// 	pData []byte
+// }
+
+// func bitsInit(isize int, buffer []byte) *bitsBuffer {
+
+// 	bits := &bitsBuffer{
+// 		iSize: isize,
+// 		iData: 0,
+// 		iMask: 0x80,
+// 		pData: buffer,
+// 	}
+// 	if bits.pData == nil {
+// 		bits.pData = make([]byte, isize)
+// 	}
+// 	return bits
+// }
+
+// func bitsAlign(bits *bitsBuffer) {
+
+// 	if bits.iMask != 0x80 && bits.iData < bits.iSize {
+// 		bits.iMask = 0x80
+// 		bits.iData++
+// 		bits.pData[bits.iData] = 0x00
+// 	}
+// }
+// func bitsWrite(bits *bitsBuffer, count int, src uint64) *bitsBuffer {
+
+// 	for count > 0 {
+// 		count--
+// 		if ((src >> uint(count)) & 0x01) != 0 {
+// 			bits.pData[bits.iData] |= bits.iMask
+// 		} else {
+// 			bits.pData[bits.iData] &= ^bits.iMask
+// 		}
+// 		bits.iMask >>= 1
+// 		if bits.iMask == 0 {
+// 			bits.iData++
+// 			bits.iMask = 0x80
+// 		}
+// 	}
+
+// 	return bits
+// }
+
+/*
+https://github.com/videolan/vlc/blob/master/modules/demux/mpeg
+*/
+type DecPSPackage struct {
+	systemClockReferenceBase      uint64
+	systemClockReferenceExtension uint64
+	programMuxRate                uint32
+
+	VideoStreamType uint32
+	AudioStreamType uint32
+	IOBuffer
+	Payload     []byte
+	videoBuffer []byte
+	audioBuffer []byte
+	PTS         uint32
+	DTS         uint32
+	Pusher
+}
+
+func NewDecPSPackage(p Pusher) *DecPSPackage {
+	p.PrintDump("<tr><td>")
+	return &DecPSPackage{
+		Pusher: p,
+	}
+}
+func (dec *DecPSPackage) clean() {
+	dec.systemClockReferenceBase = 0
+	dec.systemClockReferenceExtension = 0
+	dec.programMuxRate = 0
+	dec.Payload = nil
+	dec.PTS = 0
+	dec.DTS = 0
+}
+
+func (dec *DecPSPackage) ReadPayload() (payload []byte, err error) {
+	payloadlen, err := dec.Uint16()
+	if err != nil {
+		return
+	}
+	return dec.ReadN(int(payloadlen))
+}
+
+// Drop 由于丢包引起的必须丢弃的数据
+func (dec *DecPSPackage) Drop() {
+	dec.Reset()
+	dec.videoBuffer = nil
+	dec.audioBuffer = nil
+	dec.Payload = nil
+}
+
+func (dec *DecPSPackage) Feed(ps []byte) (err error) {
+	if ps[0] == 0 && ps[1] == 0 && ps[2] == 1 {
+		defer dec.Write(ps)
+		if dec.Len() >= 4 {
+			//说明需要处理PS包，处理完后，清空缓存
+			defer dec.Reset()
+		} else {
+			return
+		}
+	} else {
+		// 说明是中间数据，直接写入缓存，否则数据不合法需要丢弃
+		if dec.Len() > 0 {
+			dec.Write(ps)
+		}
+		return nil
+	}
+	for dec.Len() >= 4 {
+		code, _ := dec.Uint32()
+		// println("code:", code)
+		switch code {
+		case StartCodePS:
+			dec.PrintDump("</td></tr><tr><td>")
+			if len(dec.audioBuffer) > 0 {
+				dec.PushAudio(dec.PTS, dec.audioBuffer)
+				dec.audioBuffer = nil
+			}
+			if err := dec.Skip(9); err != nil {
+				return err
+			}
+			psl, err := dec.ReadByte()
+			if err != nil {
+				return err
+			}
+			psl &= 0x07
+			if err = dec.Skip(int(psl)); err != nil {
+				return err
+			}
+		case StartCodeSYS:
+			dec.PrintDump("</td><td>[sys]")
+			dec.ReadPayload()
+		case StartCodeMAP:
+			dec.decProgramStreamMap()
+			dec.PrintDump("</td><td>[map]")
+		case StartCodeVideo:
+			if dec.videoBuffer == nil {
+				dec.PrintDump("</td><td>")
+			}
+			if err = dec.decPESPacket(); err == nil {
+				if dec.Payload[0] == 0 && dec.Payload[1] == 0 && dec.Payload[2] == 0 && dec.Payload[3] == 1 {
+					if len(dec.videoBuffer) > 0 {
+						dec.PushVideo(dec.PTS, dec.DTS, dec.videoBuffer)
+						dec.videoBuffer = nil
+					}
+				}
+				dec.videoBuffer = append(dec.videoBuffer, dec.Payload...)
+			} else {
+				fmt.Println("video", err)
+			}
+			dec.PrintDump("[video]")
+		case StartCodeAudio:
+			if dec.audioBuffer == nil {
+				dec.PrintDump("</td><td>")
+			}
+			if err = dec.decPESPacket(); err == nil {
+				dec.audioBuffer = append(dec.audioBuffer, dec.Payload...)
+				dec.PrintDump("[audio]")
+			} else {
+				fmt.Println("audio", err)
+			}
+		case PrivateStreamCode:
+			dec.ReadPayload()
+			dec.PrintDump("</td></tr><tr><td>[ac3]")
+		case MEPGProgramEndCode:
+			dec.PrintDump("</td></tr>")
+			return io.EOF
+		default:
+			fmt.Println("unknow code", code)
+			return ErrParsePakcet
+		}
+	}
+	return nil
+}
+
+/*
+	func (dec *DecPSPackage) decSystemHeader() error {
+		syslens, err := dec.Uint16()
+		if err != nil {
+			return err
+		}
+		// drop rate video audio bound and lock flag
+		syslens -= 6
+		if err = dec.Skip(6); err != nil {
+			return err
+		}
+
+		// ONE WAY: do not to parse the stream  and skip the buffer
+		//br.Skip(syslen * 8)
+
+		// TWO WAY: parse every stream info
+		for syslens > 0 {
+			if nextbits, err := dec.Uint8(); err != nil {
+				return err
+			} else if (nextbits&0x80)>>7 != 1 {
+				break
+			}
+			if err = dec.Skip(2); err != nil {
+				return err
+			}
+			syslens -= 3
+		}
+		return nil
+	}
+*/
+func (dec *DecPSPackage) decProgramStreamMap() error {
+	psm, err := dec.ReadPayload()
+	if err != nil {
+		return err
+	}
+	l := len(psm)
+	index := 2
+	programStreamInfoLen := binary.BigEndian.Uint16(psm[index:])
+	index += 2
+	index += int(programStreamInfoLen)
+	programStreamMapLen := binary.BigEndian.Uint16(psm[index:])
+	index += 2
+	for programStreamMapLen > 0 {
+		if l <= index+1 {
+			break
+		}
+		streamType := psm[index]
+		index++
+		elementaryStreamID := psm[index]
+		index++
+		if elementaryStreamID >= 0xe0 && elementaryStreamID <= 0xef {
+			dec.VideoStreamType = uint32(streamType)
+		} else if elementaryStreamID >= 0xc0 && elementaryStreamID <= 0xdf {
+			dec.AudioStreamType = uint32(streamType)
+		}
+		if l <= index+1 {
+			break
+		}
+		elementaryStreamInfoLength := binary.BigEndian.Uint16(psm[index:])
+		index += 2
+		index += int(elementaryStreamInfoLength)
+		programStreamMapLen -= 4 + elementaryStreamInfoLength
+	}
+	return nil
+}
+
+func (dec *DecPSPackage) decPESPacket() error {
+	payload, err := dec.ReadPayload()
+	if err != nil {
+		return err
+	}
+	if len(payload) < 4 {
+		return errors.New("not enough data")
+	}
+	//data_alignment_indicator := (payload[0]&0b0001_0000)>>4 == 1
+	flag := payload[1]
+	ptsFlag := flag>>7 == 1
+	dtsFlag := (flag&0b0100_0000)>>6 == 1
+	var pts, dts uint32
+	pesHeaderDataLen := payload[2]
+	payload = payload[3:]
+	extraData := payload[:pesHeaderDataLen]
+	if ptsFlag && len(extraData) > 4 {
+		pts = uint32(extraData[0]&0b0000_1110) << 29
+		pts += uint32(extraData[1]) << 22
+		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.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")
+}

utils/string.go

@@ -1,6 +1,14 @@
 package utils
 
-import "encoding/json"
+import (
+    "bytes"
+    "encoding/json"
+    "encoding/xml"
+    "golang.org/x/net/html/charset"
+    "golang.org/x/text/encoding/simplifiedchinese"
+    "golang.org/x/text/transform"
+    "io/ioutil"
+)
 
 func ToJSONString(v interface{}) string {
 	b, _ := json.Marshal(v)
@@ -11,3 +19,23 @@ func ToPrettyString(v interface{}) string {
 	b, _ := json.MarshalIndent(v, "", "    ")
 	return string(b)
 }
+
+func GbkToUtf8(s []byte) ([]byte, error) {
+    reader := transform.NewReader(bytes.NewReader(s), simplifiedchinese.GBK.NewDecoder())
+    d, e := ioutil.ReadAll(reader)
+    if e != nil {
+        return s, e
+    }
+    return d, nil
+}
+
+func DecodeGbk(v interface{}, body []byte) error {
+    bodyBytes, err := GbkToUtf8(body)
+    if err != nil {
+        return err
+    }
+    decoder := xml.NewDecoder(bytes.NewReader(bodyBytes))
+    decoder.CharsetReader = charset.NewReaderLabel
+    err = decoder.Decode(v)
+    return err
+}

yarn.lock

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