forked from livekit/livekit
/
ingress.go
327 lines (278 loc) · 8.02 KB
/
ingress.go
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package service
import (
"context"
"errors"
"fmt"
"time"
"google.golang.org/protobuf/proto"
"github.com/abdulhaseeb08/livekit-server/pkg/config"
"github.com/abdulhaseeb08/livekit-server/pkg/telemetry"
"github.com/abdulhaseeb08/protocol/ingress"
"github.com/abdulhaseeb08/protocol/livekit"
"github.com/abdulhaseeb08/protocol/logger"
"github.com/abdulhaseeb08/protocol/utils"
)
var (
initialTimeout = time.Second * 3
retryTimeout = time.Minute * 1
)
type IngressService struct {
conf *config.IngressConfig
rpcClient ingress.RPCClient
store IngressStore
roomService livekit.RoomService
telemetry telemetry.TelemetryService
shutdown chan struct{}
}
func NewIngressService(
conf *config.IngressConfig,
rpcClient ingress.RPCClient,
store IngressStore,
rs livekit.RoomService,
ts telemetry.TelemetryService,
) *IngressService {
return &IngressService{
conf: conf,
rpcClient: rpcClient,
store: store,
roomService: rs,
telemetry: ts,
shutdown: make(chan struct{}),
}
}
func (s *IngressService) Start() {
if s.rpcClient != nil {
go s.updateWorker()
go s.entitiesWorker()
}
}
func (s *IngressService) Stop() {
close(s.shutdown)
}
func (s *IngressService) CreateIngress(ctx context.Context, req *livekit.CreateIngressRequest) (*livekit.IngressInfo, error) {
return s.CreateIngressWithUrlPrefix(ctx, s.conf.RTMPBaseURL, req)
}
func (s *IngressService) CreateIngressWithUrlPrefix(ctx context.Context, urlPrefix string, req *livekit.CreateIngressRequest) (*livekit.IngressInfo, error) {
err := EnsureIngressAdminPermission(ctx)
if err != nil {
return nil, twirpAuthError(err)
}
sk := utils.NewGuid("")
info := &livekit.IngressInfo{
IngressId: utils.NewGuid(utils.IngressPrefix),
Name: req.Name,
StreamKey: sk,
Url: newRtmpUrl(urlPrefix, sk),
InputType: req.InputType,
Audio: req.Audio,
Video: req.Video,
RoomName: req.RoomName,
ParticipantIdentity: req.ParticipantIdentity,
ParticipantName: req.ParticipantName,
Reusable: req.InputType == livekit.IngressInput_RTMP_INPUT,
State: &livekit.IngressState{},
}
if err := s.store.StoreIngress(ctx, info); err != nil {
logger.Errorw("could not write ingress info", err)
return nil, err
}
return info, nil
}
func (s *IngressService) sendRPCWithRetry(ctx context.Context, req *livekit.IngressRequest) (*livekit.IngressState, error) {
type result struct {
state *livekit.IngressState
err error
}
resChan := make(chan result, 1)
go func() {
cctx, _ := context.WithTimeout(context.Background(), retryTimeout)
for {
select {
case <-cctx.Done():
resChan <- result{nil, ingress.ErrNoResponse}
return
default:
}
s, err := s.rpcClient.SendRequest(cctx, req)
if err != ingress.ErrNoResponse {
resChan <- result{s, err}
return
}
}
}()
select {
case res := <-resChan:
return res.state, res.err
case <-time.After(initialTimeout):
return nil, ingress.ErrNoResponse
}
}
func (s *IngressService) UpdateIngress(ctx context.Context, req *livekit.UpdateIngressRequest) (*livekit.IngressInfo, error) {
err := EnsureIngressAdminPermission(ctx)
if err != nil {
return nil, twirpAuthError(err)
}
if s.rpcClient == nil {
return nil, ErrIngressNotConnected
}
info, err := s.store.LoadIngress(ctx, req.IngressId)
if err != nil {
logger.Errorw("could not load ingress info", err)
return nil, err
}
switch info.State.Status {
case livekit.IngressState_ENDPOINT_ERROR:
info.State.Status = livekit.IngressState_ENDPOINT_INACTIVE
err = s.store.UpdateIngressState(ctx, req.IngressId, info.State)
if err != nil {
logger.Warnw("could not store ingress state", err)
}
fallthrough
case livekit.IngressState_ENDPOINT_INACTIVE:
if req.Name != "" {
info.Name = req.Name
}
if req.RoomName != "" {
info.RoomName = req.RoomName
}
if req.ParticipantIdentity != "" {
info.ParticipantIdentity = req.ParticipantIdentity
}
if req.ParticipantName != "" {
info.ParticipantName = req.ParticipantName
}
if req.Audio != nil {
info.Audio = req.Audio
}
if req.Video != nil {
info.Video = req.Video
}
case livekit.IngressState_ENDPOINT_BUFFERING,
livekit.IngressState_ENDPOINT_PUBLISHING:
// Do not update store the returned state as the ingress service will do it
s, err := s.sendRPCWithRetry(ctx, &livekit.IngressRequest{
IngressId: req.IngressId,
Request: &livekit.IngressRequest_Update{Update: req},
})
if err != nil {
logger.Warnw("could not update active ingress", err)
} else {
info.State = s
}
}
err = s.store.UpdateIngress(ctx, info)
if err != nil {
logger.Errorw("could not update ingress info", err)
return nil, err
}
return info, nil
}
func (s *IngressService) ListIngress(ctx context.Context, req *livekit.ListIngressRequest) (*livekit.ListIngressResponse, error) {
err := EnsureIngressAdminPermission(ctx)
if err != nil {
return nil, twirpAuthError(err)
}
infos, err := s.store.ListIngress(ctx, livekit.RoomName(req.RoomName))
if err != nil {
logger.Errorw("could not list ingress info", err)
return nil, err
}
return &livekit.ListIngressResponse{Items: infos}, nil
}
func (s *IngressService) DeleteIngress(ctx context.Context, req *livekit.DeleteIngressRequest) (*livekit.IngressInfo, error) {
if err := EnsureIngressAdminPermission(ctx); err != nil {
return nil, twirpAuthError(err)
}
if s.rpcClient == nil {
return nil, ErrIngressNotConnected
}
info, err := s.store.LoadIngress(ctx, req.IngressId)
if err != nil {
return nil, err
}
switch info.State.Status {
case livekit.IngressState_ENDPOINT_BUFFERING,
livekit.IngressState_ENDPOINT_PUBLISHING:
s, err := s.sendRPCWithRetry(ctx, &livekit.IngressRequest{
IngressId: req.IngressId,
Request: &livekit.IngressRequest_Delete{Delete: req},
})
if err != nil {
logger.Warnw("could not stop active ingress", err)
} else {
info.State = s
}
}
err = s.store.DeleteIngress(ctx, info)
if err != nil {
logger.Errorw("could not delete ingress info", err)
return nil, err
}
info.State.Status = livekit.IngressState_ENDPOINT_INACTIVE
return info, nil
}
func (s *IngressService) updateWorker() {
sub, err := s.rpcClient.GetUpdateChannel(context.Background())
if err != nil {
logger.Errorw("failed to subscribe to results channel", err)
return
}
resChan := sub.Channel()
for {
select {
case msg := <-resChan:
b := sub.Payload(msg)
res := &livekit.UpdateIngressStateRequest{}
if err = proto.Unmarshal(b, res); err != nil {
logger.Errorw("failed to read results", err)
continue
}
// save updated info to store
err = s.store.UpdateIngressState(context.Background(), res.IngressId, res.State)
if err != nil {
logger.Errorw("could not update ingress", err)
}
case <-s.shutdown:
_ = sub.Close()
return
}
}
}
func (s *IngressService) entitiesWorker() {
sub, err := s.rpcClient.GetEntityChannel(context.Background())
if err != nil {
logger.Errorw("failed to subscribe to entities channel", err)
return
}
resChan := sub.Channel()
for {
select {
case msg := <-resChan:
b := sub.Payload(msg)
req := &livekit.GetIngressInfoRequest{}
if err = proto.Unmarshal(b, req); err != nil {
logger.Errorw("failed to read request", err)
continue
}
var info *livekit.IngressInfo
var err error
if req.IngressId != "" {
info, err = s.store.LoadIngress(context.Background(), req.IngressId)
} else if req.StreamKey != "" {
info, err = s.store.LoadIngressFromStreamKey(context.Background(), req.StreamKey)
} else {
err = errors.New("request needs to specity either IngressId or StreamKey")
}
err = s.rpcClient.SendGetIngressInfoResponse(context.Background(), req, &livekit.GetIngressInfoResponse{Info: info}, err)
if err != nil {
logger.Errorw("could not send response", err)
}
case <-s.shutdown:
_ = sub.Close()
return
}
}
}
func newRtmpUrl(baseUrl string, ingressId string) string {
return fmt.Sprintf("%s/%s", baseUrl, ingressId)
}