123 lines
2.4 KiB
Go
123 lines
2.4 KiB
Go
package service
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import (
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"context"
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"fmt"
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"log/slog"
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"github.com/emiago/sipgo"
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"github.com/emiago/sipgo/sip"
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"github.com/ossrs/go-oryx-lib/errors"
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"github.com/ossrs/srs-sip/pkg/config"
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"github.com/ossrs/srs-sip/pkg/service/stack"
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)
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const (
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UserAgent = "SRS-SIP/1.0"
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)
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type UAC struct {
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*Cascade
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SN uint32
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LocalIP string
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}
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func NewUac() *UAC {
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ip, err := config.GetLocalIP()
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if err != nil {
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slog.Error("get local ip failed", "error", err)
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return nil
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}
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c := &UAC{
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Cascade: &Cascade{},
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LocalIP: ip,
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}
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return c
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}
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func (c *UAC) Start(agent *sipgo.UserAgent, r0 interface{}) error {
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var err error
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c.ctx = context.Background()
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c.conf = r0.(*config.MainConfig)
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if agent == nil {
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ua, err := sipgo.NewUA(sipgo.WithUserAgent(UserAgent))
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if err != nil {
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return err
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}
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agent = ua
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}
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c.sipCli, err = sipgo.NewClient(agent, sipgo.WithClientHostname(c.LocalIP))
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if err != nil {
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return err
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}
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c.sipSvr, err = sipgo.NewServer(agent)
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if err != nil {
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return err
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}
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c.sipSvr.OnInvite(c.onInvite)
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c.sipSvr.OnBye(c.onBye)
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c.sipSvr.OnMessage(c.onMessage)
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go c.doRegister()
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return nil
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}
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func (c *UAC) Stop() {
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// TODO: 断开所有当前连接
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c.sipCli.Close()
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c.sipSvr.Close()
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}
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func (c *UAC) doRegister() error {
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r, _ := stack.NewRegisterRequest(stack.OutboundConfig{
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From: "34020000001110000001",
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To: "34020000002000000001",
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Transport: "UDP",
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Via: fmt.Sprintf("%s:%d", c.LocalIP, c.conf.GB28181.Port),
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})
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tx, err := c.sipCli.TransactionRequest(c.ctx, r)
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if err != nil {
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return errors.Wrapf(err, "transaction request error")
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}
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rs, _ := c.getResponse(tx)
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slog.Info("register response", "response", rs.String())
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return nil
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}
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func (c *UAC) OnRequest(req *sip.Request, tx sip.ServerTransaction) {
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switch req.Method {
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case "INVITE":
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c.onInvite(req, tx)
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}
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}
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func (c *UAC) onInvite(req *sip.Request, tx sip.ServerTransaction) {
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slog.Debug("onInvite")
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}
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func (c *UAC) onBye(req *sip.Request, tx sip.ServerTransaction) {
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slog.Debug("onBye")
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}
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func (c *UAC) onMessage(req *sip.Request, tx sip.ServerTransaction) {
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slog.Debug("onMessage", "request", req.String())
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}
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func (c *UAC) getResponse(tx sip.ClientTransaction) (*sip.Response, error) {
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select {
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case <-tx.Done():
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return nil, fmt.Errorf("transaction died")
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case res := <-tx.Responses():
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return res, nil
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}
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}
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