532 lines
19 KiB
Go
532 lines
19 KiB
Go
package rpc
|
||
|
||
import (
|
||
"context"
|
||
"errors"
|
||
|
||
"github.com/gotd/td/tg"
|
||
"go.uber.org/zap"
|
||
|
||
"telesrv/internal/domain"
|
||
"telesrv/internal/sfu"
|
||
)
|
||
|
||
// 超级群语音聊天（group call）核心 RPC。信令真值在 GroupCallStore（version 单调），
|
||
// 媒体面经 deps.SFU（M0 为 Disabled：纯信令，客户端停留在 Connecting 属预期）。
|
||
|
||
// groupCallErr 把 domain 群通话错误映射为 RPC_ERROR。
|
||
func groupCallErr(err error) error {
|
||
switch {
|
||
case errors.Is(err, domain.ErrGroupCallInvalid):
|
||
return groupCallInvalidErr()
|
||
case errors.Is(err, domain.ErrGroupCallDiscarded):
|
||
return groupCallAlreadyDiscardedErr()
|
||
case errors.Is(err, domain.ErrGroupCallAlreadyStarted):
|
||
return groupCallAlreadyStartedErr()
|
||
case errors.Is(err, domain.ErrGroupCallSSRCDuplicate):
|
||
return groupCallSSRCDuplicateErr()
|
||
case errors.Is(err, domain.ErrGroupCallNotJoined):
|
||
return groupCallJoinMissingErr()
|
||
case errors.Is(err, domain.ErrConferenceChainInvalid):
|
||
return confWriteChainInvalidErr()
|
||
default:
|
||
return internalErr()
|
||
}
|
||
}
|
||
|
||
// groupCallScope 是群通话 handler 的通用前置解析结果。
|
||
type groupCallScope struct {
|
||
userID int64
|
||
call domain.GroupCall
|
||
channel domain.Channel
|
||
member domain.ChannelMember
|
||
}
|
||
|
||
func (s *groupCallScope) canManage() bool {
|
||
if s.call.Conference() {
|
||
return s.userID != 0 && s.userID == s.call.CreatorUserID
|
||
}
|
||
return channelMemberIsAdmin(s.member)
|
||
}
|
||
|
||
// groupCallScopeFrom 解析 InputGroupCallClass 并校验访问权。普通 group call 继续
|
||
// 走频道成员资格；conference call 走 creator/participant/invite/slug 访问模型。
|
||
func (r *Router) groupCallScopeFrom(ctx context.Context, in tg.InputGroupCallClass) (*groupCallScope, error) {
|
||
if r.deps.GroupCalls == nil {
|
||
return nil, notImplementedErr()
|
||
}
|
||
userID, err := r.phoneRequireUser(ctx)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
var call domain.GroupCall
|
||
var found bool
|
||
allowBySlug := false
|
||
switch v := in.(type) {
|
||
case *tg.InputGroupCall:
|
||
call, found, err = r.deps.GroupCalls.Get(ctx, v.ID)
|
||
if err != nil {
|
||
return nil, internalErr()
|
||
}
|
||
if !found || call.AccessHash != v.AccessHash {
|
||
return nil, groupCallInvalidErr()
|
||
}
|
||
case *tg.InputGroupCallSlug:
|
||
call, found, err = r.deps.GroupCalls.GetBySlug(ctx, v.Slug)
|
||
if err != nil {
|
||
return nil, internalErr()
|
||
}
|
||
if !found || !call.Conference() {
|
||
return nil, groupCallInvalidErr()
|
||
}
|
||
allowBySlug = true
|
||
case *tg.InputGroupCallInviteMessage:
|
||
call, _, found, err = r.deps.GroupCalls.GetByInviteMessage(ctx, userID, v.MsgID)
|
||
if err != nil {
|
||
return nil, internalErr()
|
||
}
|
||
if !found || !call.Conference() {
|
||
return nil, groupCallInvalidErr()
|
||
}
|
||
default:
|
||
return nil, groupCallInvalidErr()
|
||
}
|
||
if call.Conference() {
|
||
if !allowBySlug {
|
||
allowed, err := r.conferenceCallCanAccess(ctx, call.ID, userID)
|
||
if err != nil {
|
||
return nil, internalErr()
|
||
}
|
||
if !allowed {
|
||
return nil, groupCallForbiddenErr()
|
||
}
|
||
}
|
||
return &groupCallScope{userID: userID, call: call}, nil
|
||
}
|
||
if r.deps.Channels == nil {
|
||
return nil, notImplementedErr()
|
||
}
|
||
view, err := r.deps.Channels.GetChannel(ctx, userID, call.ChannelID)
|
||
if err != nil {
|
||
return nil, groupCallForbiddenErr()
|
||
}
|
||
if view.Self.Status != domain.ChannelMemberActive {
|
||
return nil, groupCallForbiddenErr()
|
||
}
|
||
return &groupCallScope{userID: userID, call: call, channel: view.Channel, member: view.Self}, nil
|
||
}
|
||
|
||
func (r *Router) conferenceCallCanAccess(ctx context.Context, callID, userID int64) (bool, error) {
|
||
recipients, err := r.deps.GroupCalls.ConferenceRecipients(ctx, callID)
|
||
if err != nil {
|
||
return false, err
|
||
}
|
||
for _, id := range recipients {
|
||
if id == userID {
|
||
return true, nil
|
||
}
|
||
}
|
||
return false, nil
|
||
}
|
||
|
||
func (r *Router) onPhoneCreateGroupCall(ctx context.Context, req *tg.PhoneCreateGroupCallRequest) (tg.UpdatesClass, error) {
|
||
if req == nil {
|
||
return nil, inputRequestInvalidErr()
|
||
}
|
||
if r.deps.GroupCalls == nil || r.deps.Channels == nil {
|
||
return nil, notImplementedErr()
|
||
}
|
||
userID, err := r.phoneRequireUser(ctx)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
if req.RtmpStream {
|
||
return nil, notImplementedErr()
|
||
}
|
||
if _, ok := req.GetScheduleDate(); ok {
|
||
return nil, notImplementedErr()
|
||
}
|
||
peer, err := r.checkedDomainPeerFromInputPeer(ctx, userID, req.Peer)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
if peer.Type != domain.PeerTypeChannel || peer.ID == 0 {
|
||
return nil, peerIDInvalidErr()
|
||
}
|
||
view, err := r.deps.Channels.GetChannel(ctx, userID, peer.ID)
|
||
if err != nil {
|
||
return nil, peerIDInvalidErr()
|
||
}
|
||
if view.Self.Status != domain.ChannelMemberActive || !channelMemberIsAdmin(view.Self) {
|
||
return nil, tgerr400("CHAT_ADMIN_REQUIRED")
|
||
}
|
||
if !view.Channel.Megagroup {
|
||
// broadcast 频道的 livestream 属范围外。
|
||
return nil, notImplementedErr()
|
||
}
|
||
now := int(r.clock.Now().Unix())
|
||
call, err := r.deps.GroupCalls.Create(ctx, view.Channel.ID, userID, req.Title, now)
|
||
if err != nil {
|
||
return nil, groupCallErr(err)
|
||
}
|
||
// started 服务消息（带频道 pts，离线成员经 channels difference 补收）。
|
||
var serviceRes domain.SendChannelMessageResult
|
||
if res, err := r.deps.Channels.AppendCallServiceMessage(ctx, view.Channel.ID, userID, now, domain.ChannelMessageAction{
|
||
Type: domain.ChannelActionGroupCall,
|
||
CallID: call.ID,
|
||
CallAccessHash: call.AccessHash,
|
||
}); err == nil {
|
||
serviceRes = res
|
||
_ = r.deps.GroupCalls.SetStartedMessageID(ctx, call.ID, res.Message.ID)
|
||
} else {
|
||
r.log.Warn("group call started service message", zap.Int64("channel_id", view.Channel.ID), zap.Error(err))
|
||
}
|
||
channel, err := r.deps.Channels.SetActiveCall(ctx, view.Channel.ID, call.ID, call.AccessHash, false)
|
||
if err != nil {
|
||
channel = view.Channel
|
||
channel.ActiveCallID = call.ID
|
||
channel.ActiveCallAccessHash = call.AccessHash
|
||
}
|
||
// 扇出：banner flag 刷新 + updateGroupCall + 服务消息。
|
||
r.pushChannelStateToMembers(ctx, userID, channel)
|
||
r.pushGroupCallUpdate(ctx, channel, call)
|
||
if serviceRes.Event.Pts != 0 {
|
||
r.pushGroupCallServiceMessage(ctx, userID, serviceRes)
|
||
}
|
||
// 响应：updateGroupCall + 服务消息（发起设备视角）。TDesktop 创建后自行 joinGroupCall。
|
||
update := &tg.UpdateGroupCall{Call: tgGroupCall(call, userID, true)}
|
||
update.SetPeer(&tg.PeerChannel{ChannelID: channel.ID})
|
||
out := r.groupCallUpdateContainer(ctx, userID, channel, update, []int64{userID})
|
||
if serviceRes.Event.Pts != 0 {
|
||
if msgUpdate := tgChannelUpdate(userID, serviceRes.Event); msgUpdate != nil {
|
||
out.Updates = append(out.Updates, msgUpdate)
|
||
}
|
||
}
|
||
return out, nil
|
||
}
|
||
|
||
func (r *Router) onPhoneJoinGroupCall(ctx context.Context, req *tg.PhoneJoinGroupCallRequest) (tg.UpdatesClass, error) {
|
||
if req == nil {
|
||
return nil, inputRequestInvalidErr()
|
||
}
|
||
scope, err := r.groupCallScopeFrom(ctx, req.Call)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
if !scope.call.Active() {
|
||
return nil, groupCallAlreadyDiscardedErr()
|
||
}
|
||
// 解析上行 join JSON（容忍 video_stopped 等 flag 与 ssrc-groups——TDesktop join 即带）。
|
||
offer, ssrc, err := parseGroupCallJoinPayload(req.Params.Data)
|
||
if err != nil {
|
||
r.log.Warn("group call join payload", zap.Error(err))
|
||
return nil, groupCallInvalidErr()
|
||
}
|
||
// 房间上限（演示规模）：rejoin（已在会换 ssrc）不受限。
|
||
if max := r.cfg.GroupCallMaxParticipants; max > 0 && scope.call.ParticipantsCount >= max {
|
||
if p, found, _ := r.deps.GroupCalls.Participant(ctx, scope.call.ID, scope.userID); !found || p.Left {
|
||
return nil, groupCallForbiddenErr()
|
||
}
|
||
}
|
||
now := int(r.clock.Now().Unix())
|
||
var publicKey []byte
|
||
if pk, ok := req.GetPublicKey(); ok {
|
||
publicKey = append([]byte(nil), pk[:]...)
|
||
}
|
||
var joinBlock []byte
|
||
if block, ok := req.GetBlock(); ok {
|
||
joinBlock = append([]byte(nil), block...)
|
||
}
|
||
// 视频内部状态：endpoint 服务端铸造（join 响应 video.endpoint 与日后
|
||
// participant.video.endpoint 必须逐字节一致）；ssrc-groups 无论摄像头开关都
|
||
// 存档——video_stopped=false（join flag 或后续 self-edit）时原样回放。
|
||
endpoint := groupCallEndpointID(sfu.EndpointMain, offer.AudioSSRC)
|
||
videoState := participantVideoState{
|
||
Endpoint: endpoint,
|
||
SourceGroups: groupCallSsrcGroupsFromOffer(offer),
|
||
Active: !req.VideoStopped && len(offer.SsrcGroups) > 0,
|
||
}
|
||
mut, err := r.deps.GroupCalls.Join(ctx, domain.JoinGroupCallRequest{
|
||
CallID: scope.call.ID,
|
||
UserID: scope.userID,
|
||
SSRC: ssrc,
|
||
Muted: req.Muted,
|
||
IsAdmin: scope.canManage(),
|
||
PublicKey: publicKey,
|
||
JoinBlock: joinBlock,
|
||
VideoJSON: encodeVideoState(videoState),
|
||
Now: now,
|
||
})
|
||
if err != nil {
|
||
return nil, groupCallErr(err)
|
||
}
|
||
// 媒体面：SFU 分配 endpoint（M0 Disabled：语法完备空 candidates，客户端保持
|
||
// Connecting 并以 4s checkGroupCall 心跳维持保活——M0 sweeper 判据依赖该行为）。
|
||
sfuService := r.deps.SFU
|
||
if sfuService == nil {
|
||
sfuService = sfu.Disabled()
|
||
}
|
||
answer, err := sfuService.Join(ctx, scope.call.ID, scope.userID, sfu.EndpointMain, offer)
|
||
if err != nil {
|
||
// 媒体面失败回滚信令侧（保持两面一致），返回 500。
|
||
_, _ = r.deps.GroupCalls.Leave(ctx, scope.call.ID, scope.userID, now)
|
||
r.log.Warn("group call sfu join", zap.Error(err))
|
||
return nil, internalErr()
|
||
}
|
||
params, err := buildGroupCallConnectionParams(answer, endpoint)
|
||
if err != nil {
|
||
_ = sfuService.Leave(ctx, scope.call.ID, scope.userID, sfu.EndpointMain)
|
||
_, _ = r.deps.GroupCalls.Leave(ctx, scope.call.ID, scope.userID, now)
|
||
return nil, internalErr()
|
||
}
|
||
var conferenceJoinBlock domain.GroupCallChainBlock
|
||
var hasConferenceJoinBlock bool
|
||
if scope.call.Conference() && len(joinBlock) > 0 {
|
||
block, err := r.deps.GroupCalls.AppendChainBlock(ctx, domain.GroupCallChainBlock{
|
||
CallID: scope.call.ID,
|
||
SubChainID: 0,
|
||
Offset: -1,
|
||
AuthorUserID: scope.userID,
|
||
Block: joinBlock,
|
||
CreatedAt: now,
|
||
})
|
||
if err != nil {
|
||
_ = sfuService.Leave(ctx, scope.call.ID, scope.userID, sfu.EndpointMain)
|
||
_, _ = r.deps.GroupCalls.Leave(ctx, scope.call.ID, scope.userID, now)
|
||
return nil, groupCallErr(err)
|
||
}
|
||
conferenceJoinBlock = block
|
||
hasConferenceJoinBlock = true
|
||
}
|
||
// 扇出给房间/在线群成员（操作者其它设备含其中；本设备从 RPC 返回拿）。
|
||
channel := r.groupCallMutationFanout(ctx, scope.channel, mut)
|
||
// 响应（TDesktop 从本 RPC 返回的 Updates 摘取 updateGroupCallConnection，不会等推送）：
|
||
out := r.groupCallUpdateContainer(ctx, scope.userID, channel,
|
||
&tg.UpdateGroupCallParticipants{
|
||
Call: &tg.InputGroupCall{ID: mut.Call.ID, AccessHash: mut.Call.AccessHash},
|
||
Participants: tgGroupCallParticipants([]domain.GroupCallParticipant{mut.Participant}, scope.userID),
|
||
Version: mut.Call.Version,
|
||
}, []int64{scope.userID})
|
||
out.Updates = append(out.Updates, &tg.UpdateGroupCallConnection{Params: tg.DataJSON{Data: params}})
|
||
callUpdate := &tg.UpdateGroupCall{Call: tgGroupCall(mut.Call, scope.userID, scope.canManage())}
|
||
if channel.ID != 0 {
|
||
callUpdate.SetPeer(&tg.PeerChannel{ChannelID: channel.ID})
|
||
}
|
||
out.Updates = append(out.Updates, callUpdate)
|
||
if hasConferenceJoinBlock {
|
||
nextOffset := conferenceJoinBlock.Offset + 1
|
||
blocks := [][]byte{conferenceJoinBlock.Block}
|
||
r.pushConferenceChainBlocks(ctx, mut.Call, conferenceJoinBlock.SubChainID, blocks, nextOffset)
|
||
out.Updates = append(out.Updates, conferenceChainBlocksUpdate(mut.Call, conferenceJoinBlock.SubChainID, blocks, nextOffset))
|
||
}
|
||
return out, nil
|
||
}
|
||
|
||
func (r *Router) onPhoneLeaveGroupCall(ctx context.Context, req *tg.PhoneLeaveGroupCallRequest) (tg.UpdatesClass, error) {
|
||
if req == nil {
|
||
return nil, inputRequestInvalidErr()
|
||
}
|
||
scope, err := r.groupCallScopeFrom(ctx, req.Call)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
now := int(r.clock.Now().Unix())
|
||
mut, err := r.deps.GroupCalls.Leave(ctx, scope.call.ID, scope.userID, now)
|
||
if errors.Is(err, domain.ErrGroupCallNotJoined) {
|
||
// 幂等：重复 leave / sweeper 已清，返回当前快照。
|
||
return r.groupCallUpdateContainer(ctx, scope.userID, scope.channel,
|
||
groupCallUpdateFor(scope.channel, scope.call, scope.userID, false), nil), nil
|
||
}
|
||
if err != nil {
|
||
return nil, groupCallErr(err)
|
||
}
|
||
if r.deps.SFU != nil {
|
||
_ = r.deps.SFU.Leave(ctx, scope.call.ID, scope.userID, sfu.EndpointMain)
|
||
}
|
||
channel := r.groupCallMutationFanout(ctx, scope.channel, mut)
|
||
out := r.groupCallUpdateContainer(ctx, scope.userID, channel,
|
||
&tg.UpdateGroupCallParticipants{
|
||
Call: &tg.InputGroupCall{ID: mut.Call.ID, AccessHash: mut.Call.AccessHash},
|
||
Participants: tgGroupCallParticipants([]domain.GroupCallParticipant{mut.Participant}, scope.userID),
|
||
Version: mut.Call.Version,
|
||
}, []int64{scope.userID})
|
||
if mut.Call.Conference() && !mut.Call.Active() {
|
||
out.Updates = append(out.Updates, groupCallUpdateFor(domain.Channel{}, mut.Call, scope.userID, scope.userID == mut.Call.CreatorUserID))
|
||
}
|
||
return out, nil
|
||
}
|
||
|
||
func (r *Router) onPhoneDiscardGroupCall(ctx context.Context, in tg.InputGroupCallClass) (tg.UpdatesClass, error) {
|
||
scope, err := r.groupCallScopeFrom(ctx, in)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
if !scope.canManage() {
|
||
return nil, tgerr400("CHAT_ADMIN_REQUIRED")
|
||
}
|
||
now := int(r.clock.Now().Unix())
|
||
call, activeBeforeDiscard, err := r.deps.GroupCalls.Discard(ctx, scope.call.ID, now)
|
||
if err != nil {
|
||
return nil, groupCallErr(err)
|
||
}
|
||
if r.deps.SFU != nil {
|
||
_ = r.deps.SFU.CloseRoom(ctx, call.ID)
|
||
}
|
||
if call.Conference() {
|
||
r.pushConferenceGroupCallUpdateTo(ctx, call, groupCallParticipantUserIDs(activeBeforeDiscard))
|
||
return r.groupCallUpdateContainer(ctx, scope.userID, domain.Channel{},
|
||
groupCallUpdateFor(domain.Channel{}, call, scope.userID, true), nil), nil
|
||
}
|
||
// 清 channel 关联 + ended 服务消息（带 duration）。
|
||
channel := scope.channel
|
||
if updated, err := r.deps.Channels.SetActiveCall(ctx, channel.ID, 0, 0, false); err == nil {
|
||
channel = updated
|
||
}
|
||
var serviceRes domain.SendChannelMessageResult
|
||
if res, err := r.deps.Channels.AppendCallServiceMessage(ctx, channel.ID, scope.userID, now, domain.ChannelMessageAction{
|
||
Type: domain.ChannelActionGroupCall,
|
||
CallID: call.ID,
|
||
CallAccessHash: call.AccessHash,
|
||
CallDuration: call.Duration,
|
||
}); err == nil {
|
||
serviceRes = res
|
||
} else {
|
||
r.log.Warn("group call ended service message", zap.Int64("channel_id", channel.ID), zap.Error(err))
|
||
}
|
||
r.pushChannelStateToMembers(ctx, scope.userID, channel)
|
||
r.pushGroupCallUpdate(ctx, channel, call)
|
||
if serviceRes.Event.Pts != 0 {
|
||
r.pushGroupCallServiceMessage(ctx, scope.userID, serviceRes)
|
||
}
|
||
out := r.groupCallUpdateContainer(ctx, scope.userID, channel,
|
||
groupCallUpdateFor(channel, call, scope.userID, true), nil)
|
||
if serviceRes.Event.Pts != 0 {
|
||
if msgUpdate := tgChannelUpdate(scope.userID, serviceRes.Event); msgUpdate != nil {
|
||
out.Updates = append(out.Updates, msgUpdate)
|
||
}
|
||
}
|
||
return out, nil
|
||
}
|
||
|
||
func (r *Router) onPhoneGetGroupCall(ctx context.Context, req *tg.PhoneGetGroupCallRequest) (*tg.PhoneGroupCall, error) {
|
||
if req == nil {
|
||
return nil, inputRequestInvalidErr()
|
||
}
|
||
scope, err := r.groupCallScopeFrom(ctx, req.Call)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
limit := req.Limit
|
||
if limit <= 0 || limit > 200 {
|
||
limit = 50
|
||
}
|
||
page, err := r.deps.GroupCalls.Participants(ctx, scope.call.ID, "", limit)
|
||
if err != nil {
|
||
return nil, groupCallErr(err)
|
||
}
|
||
userIDs := make([]int64, 0, len(page.Participants))
|
||
for _, p := range page.Participants {
|
||
userIDs = append(userIDs, p.UserID)
|
||
}
|
||
chats := []tg.ChatClass{}
|
||
if !scope.call.Conference() {
|
||
chats = append(chats, tgChannel(scope.userID, scope.channel, &scope.member))
|
||
}
|
||
return &tg.PhoneGroupCall{
|
||
Call: tgGroupCall(scope.call, scope.userID, scope.canManage()),
|
||
Participants: tgGroupCallParticipants(page.Participants, scope.userID),
|
||
ParticipantsNextOffset: page.NextOffset,
|
||
Chats: chats,
|
||
Users: r.tgUsersForIDs(ctx, scope.userID, userIDs),
|
||
}, nil
|
||
}
|
||
|
||
func (r *Router) onPhoneGetGroupParticipants(ctx context.Context, req *tg.PhoneGetGroupParticipantsRequest) (*tg.PhoneGroupParticipants, error) {
|
||
if req == nil {
|
||
return nil, inputRequestInvalidErr()
|
||
}
|
||
scope, err := r.groupCallScopeFrom(ctx, req.Call)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
limit := req.Limit
|
||
if limit <= 0 || limit > 200 {
|
||
limit = 50
|
||
}
|
||
page, err := r.deps.GroupCalls.Participants(ctx, scope.call.ID, req.Offset, limit)
|
||
if err != nil {
|
||
return nil, groupCallErr(err)
|
||
}
|
||
userIDs := make([]int64, 0, len(page.Participants))
|
||
for _, p := range page.Participants {
|
||
userIDs = append(userIDs, p.UserID)
|
||
}
|
||
// 响应 version=当前值：客户端 version 跳号后据此重建本地状态并恢复增量应用。
|
||
chats := []tg.ChatClass{}
|
||
if !scope.call.Conference() {
|
||
chats = append(chats, tgChannel(scope.userID, scope.channel, &scope.member))
|
||
}
|
||
return &tg.PhoneGroupParticipants{
|
||
Count: page.Count,
|
||
Participants: tgGroupCallParticipants(page.Participants, scope.userID),
|
||
NextOffset: page.NextOffset,
|
||
Chats: chats,
|
||
Users: r.tgUsersForIDs(ctx, scope.userID, userIDs),
|
||
Version: page.Version,
|
||
}, nil
|
||
}
|
||
|
||
// onPhoneCheckGroupCall 是保活与「踢人/重启恢复」的统一出口：返回入参 sources 中
|
||
// 仍属于该用户活跃 endpoint 的子集；自己的 ssrc 不在 ⇒ 客户端自动 rejoin。
|
||
// 注意：客户端只在 Connecting 态调它（媒体连通后心跳停止），不可据此单独判死。
|
||
func (r *Router) onPhoneCheckGroupCall(ctx context.Context, req *tg.PhoneCheckGroupCallRequest) ([]int, error) {
|
||
if req == nil {
|
||
return nil, inputRequestInvalidErr()
|
||
}
|
||
scope, err := r.groupCallScopeFrom(ctx, req.Call)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
now := int(r.clock.Now().Unix())
|
||
active, joined, err := r.deps.GroupCalls.Touch(ctx, scope.call.ID, scope.userID, now)
|
||
if err != nil {
|
||
return nil, groupCallErr(err)
|
||
}
|
||
if !joined {
|
||
return []int{}, nil
|
||
}
|
||
activeSet := make(map[int]struct{}, len(active))
|
||
for _, ssrc := range active {
|
||
activeSet[int(int32(uint32(ssrc)))] = struct{}{}
|
||
}
|
||
// presentation 的全部 ssrc（音频+视频层+RTX）也属于活跃 endpoint：TDesktop 把
|
||
// screen ssrc 一并塞进 sources，DrKLO 用 presentation.audio_source（缺省退化
|
||
// 取首个视频 ssrc）——任一不在返回集合都会触发 4s 循环重建屏幕实例。
|
||
if p, found, err := r.deps.GroupCalls.Participant(ctx, scope.call.ID, scope.userID); err == nil && found && !p.Left {
|
||
if st, ok := decodeVideoState(p.PresentationJSON); ok && st.Active {
|
||
if st.AudioSource != 0 {
|
||
activeSet[int(int32(uint32(st.AudioSource)))] = struct{}{}
|
||
}
|
||
for _, g := range st.SourceGroups {
|
||
for _, src := range g.Sources {
|
||
activeSet[int(int32(uint32(src)))] = struct{}{}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
out := make([]int, 0, len(req.Sources))
|
||
for _, src := range req.Sources {
|
||
if _, ok := activeSet[src]; ok {
|
||
out = append(out, src)
|
||
}
|
||
}
|
||
return out, nil
|
||
}
|
||
|
||
func groupCallUpdateFor(channel domain.Channel, call domain.GroupCall, viewerUserID int64, canManage bool) *tg.UpdateGroupCall {
|
||
update := &tg.UpdateGroupCall{Call: tgGroupCall(call, viewerUserID, canManage)}
|
||
if channel.ID != 0 {
|
||
update.SetPeer(&tg.PeerChannel{ChannelID: channel.ID})
|
||
}
|
||
return update
|
||
}
|