install go2rtc on bob

2026-04-04 19:36:14 +02:00
parent f0b56e63d1
commit ccf88187b8
537 changed files with 69213 additions and 0 deletions
@@ -0,0 +1,162 @@
+package onvif
+
+import (
+	"fmt"
+	"net"
+	"net/url"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/AlexxIT/go2rtc/pkg/core"
+)
+
+type DiscoveryDevice struct {
+	URL      string
+	Name     string
+	Hardware string
+}
+
+func FindTagValue(b []byte, tag string) string {
+	re := regexp.MustCompile(`(?s)<(?:\w+:)?` + tag + `\b[^>]*>([^<]+)`)
+	m := re.FindSubmatch(b)
+	if len(m) != 2 {
+		return ""
+	}
+	return string(m[1])
+}
+
+// UUID - generate something like 44302cbf-0d18-4feb-79b3-33b575263da3
+func UUID() string {
+	s := core.RandString(32, 16)
+	return s[:8] + "-" + s[8:12] + "-" + s[12:16] + "-" + s[16:20] + "-" + s[20:]
+}
+
+// DiscoveryStreamingDevices return list of tuple (onvif_url, name, hardware)
+func DiscoveryStreamingDevices() ([]DiscoveryDevice, error) {
+	conn, err := net.ListenUDP("udp4", nil)
+	if err != nil {
+		return nil, err
+	}
+
+	defer conn.Close()
+
+	// https://www.onvif.org/wp-content/uploads/2016/12/ONVIF_Feature_Discovery_Specification_16.07.pdf
+	// 5.3 Discovery Procedure:
+	msg := `<?xml version="1.0" ?>
+<s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope">
+	<s:Header xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing">
+		<a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action>
+		<a:MessageID>urn:uuid:` + UUID() + `</a:MessageID>
+		<a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To>
+	</s:Header>
+	<s:Body>
+		<d:Probe xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery">
+			<d:Types />
+			<d:Scopes />
+		</d:Probe>
+	</s:Body>
+</s:Envelope>`
+
+	addr := &net.UDPAddr{
+		IP:   net.IP{239, 255, 255, 250},
+		Port: 3702,
+	}
+
+	if _, err = conn.WriteTo([]byte(msg), addr); err != nil {
+		return nil, err
+	}
+
+	_ = conn.SetReadDeadline(time.Now().Add(5 * time.Second))
+
+	var devices []DiscoveryDevice
+
+	b := make([]byte, 8192)
+	for {
+		n, addr, err := conn.ReadFromUDP(b)
+		if err != nil {
+			break
+		}
+
+		//log.Printf("[onvif] discovery response addr=%s:\n%s", addr, b[:n])
+
+		// ignore printers, etc
+		if !strings.Contains(string(b[:n]), "onvif") {
+			continue
+		}
+
+		device := DiscoveryDevice{
+			URL: FindTagValue(b[:n], "XAddrs"),
+		}
+
+		if device.URL == "" {
+			continue
+		}
+
+		// fix some buggy cameras
+		// <wsdd:XAddrs>http://0.0.0.0:8080/onvif/device_service</wsdd:XAddrs>
+		if s, ok := strings.CutPrefix(device.URL, "http://0.0.0.0"); ok {
+			device.URL = "http://" + addr.IP.String() + s
+		}
+
+		// try to find the camera name and model (hardware)
+		scopes := FindTagValue(b[:n], "Scopes")
+		device.Name = findScope(scopes, "onvif://www.onvif.org/name/")
+		device.Hardware = findScope(scopes, "onvif://www.onvif.org/hardware/")
+
+		devices = append(devices, device)
+	}
+
+	return devices, nil
+}
+
+func findScope(s, prefix string) string {
+	s = core.Between(s, prefix, " ")
+	s, _ = url.QueryUnescape(s)
+	return s
+}
+
+func atoi(s string) int {
+	if s == "" {
+		return 0
+	}
+	i, err := strconv.Atoi(s)
+	if err != nil {
+		return -1
+	}
+	return i
+}
+
+func GetPosixTZ(current time.Time) string {
+	// Thanks to https://github.com/Path-Variable/go-posix-time
+	_, offset := current.Zone()
+
+	if current.IsDST() {
+		_, end := current.ZoneBounds()
+		endPlus1 := end.Add(time.Hour * 25)
+		_, offset = endPlus1.Zone()
+	}
+
+	var prefix string
+	if offset < 0 {
+		prefix = "GMT+"
+		offset = -offset / 60
+	} else {
+		prefix = "GMT-"
+		offset = offset / 60
+	}
+
+	return prefix + fmt.Sprintf("%02d:%02d", offset/60, offset%60)
+}
+
+func GetPath(urlOrPath, defPath string) string {
+	if urlOrPath == "" || urlOrPath[0] == '/' {
+		return defPath
+	}
+	u, err := url.Parse(urlOrPath)
+	if err != nil {
+		return defPath
+	}
+	return GetPath(u.Path, defPath)
+}