major refactor.

internal/websocket/handler/admin.go

@@ -0,0 +1,297 @@
+package handler
+
+import (
+	"strings"
+
+	"demodesk/neko/internal/types"
+	"demodesk/neko/internal/types/event"
+	"demodesk/neko/internal/types/message"
+)
+
+func (h *MessageHandlerCtx) adminLock(session types.Session) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	if h.locked {
+		h.logger.Debug().Msg("server already locked...")
+		return nil
+	}
+
+	h.locked = true
+
+	if err := h.sessions.Broadcast(
+		message.Admin{
+			Event: event.ADMIN_LOCK,
+			ID:    session.ID(),
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_LOCK)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) adminUnlock(session types.Session) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	if !h.locked {
+		h.logger.Debug().Msg("server not locked...")
+		return nil
+	}
+
+	h.locked = false
+
+	if err := h.sessions.Broadcast(
+		message.Admin{
+			Event: event.ADMIN_UNLOCK,
+			ID:    session.ID(),
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_UNLOCK)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) adminControl(session types.Session) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	host := h.sessions.GetHost()
+	h.sessions.SetHost(session)
+
+	if host != nil {
+		if err := h.sessions.Broadcast(
+			message.AdminTarget{
+				Event:  event.ADMIN_CONTROL,
+				ID:     session.ID(),
+				Target: host.ID(),
+			}, nil); err != nil {
+			h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_CONTROL)
+			return err
+		}
+	} else {
+		if err := h.sessions.Broadcast(
+			message.Admin{
+				Event: event.ADMIN_CONTROL,
+				ID:    session.ID(),
+			}, nil); err != nil {
+			h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_CONTROL)
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) adminRelease(session types.Session) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	host := h.sessions.GetHost()
+	h.sessions.ClearHost()
+
+	if host != nil {
+		if err := h.sessions.Broadcast(
+			message.AdminTarget{
+				Event:  event.ADMIN_RELEASE,
+				ID:     session.ID(),
+				Target: host.ID(),
+			}, nil); err != nil {
+			h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_RELEASE)
+			return err
+		}
+	} else {
+		if err := h.sessions.Broadcast(
+			message.Admin{
+				Event: event.ADMIN_RELEASE,
+				ID:    session.ID(),
+			}, nil); err != nil {
+			h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_RELEASE)
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) adminGive(session types.Session, payload *message.Admin) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	target, ok := h.sessions.Get(payload.ID)
+	if !ok {
+		h.logger.Debug().Str("id", target.ID()).Msg("user does not exist")
+		return nil
+	}
+
+	// set host
+	h.sessions.SetHost(target)
+
+	// let everyone know
+	if err := h.sessions.Broadcast(
+		message.AdminTarget{
+			Event:  event.CONTROL_GIVE,
+			ID:     session.ID(),
+			Target: target.ID(),
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.CONTROL_LOCKED)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) adminMute(session types.Session, payload *message.Admin) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	target, ok := h.sessions.Get(payload.ID)
+	if !ok {
+		h.logger.Debug().Str("id", payload.ID).Msg("can't find session id")
+		return nil
+	}
+
+	if target.Admin() {
+		h.logger.Debug().Msg("target is an admin, baling")
+		return nil
+	}
+
+	target.SetMuted(true)
+
+	if err := h.sessions.Broadcast(
+		message.AdminTarget{
+			Event:  event.ADMIN_MUTE,
+			Target: target.ID(),
+			ID:     session.ID(),
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_UNMUTE)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) adminUnmute(session types.Session, payload *message.Admin) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	target, ok := h.sessions.Get(payload.ID)
+	if !ok {
+		h.logger.Debug().Str("id", payload.ID).Msg("can't find target session")
+		return nil
+	}
+
+	target.SetMuted(false)
+
+	if err := h.sessions.Broadcast(
+		message.AdminTarget{
+			Event:  event.ADMIN_UNMUTE,
+			Target: target.ID(),
+			ID:     session.ID(),
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_UNMUTE)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) adminKick(session types.Session, payload *message.Admin) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	target, ok := h.sessions.Get(payload.ID)
+	if !ok {
+		h.logger.Debug().Str("id", payload.ID).Msg("can't find session id")
+		return nil
+	}
+
+	if target.Admin() {
+		h.logger.Debug().Msg("target is an admin, baling")
+		return nil
+	}
+
+	if err := target.Disconnect("kicked"); err != nil {
+		return err
+	}
+
+	if err := h.sessions.Broadcast(
+		message.AdminTarget{
+			Event:  event.ADMIN_KICK,
+			Target: target.ID(),
+			ID:     session.ID(),
+		}, []string{payload.ID}); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_KICK)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) adminBan(session types.Session, payload *message.Admin) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	target, ok := h.sessions.Get(payload.ID)
+	if !ok {
+		h.logger.Debug().Str("id", payload.ID).Msg("can't find session id")
+		return nil
+	}
+
+	if target.Admin() {
+		h.logger.Debug().Msg("target is an admin, baling")
+		return nil
+	}
+
+	remote := target.Address()
+	if remote == "" {
+		h.logger.Debug().Msg("no remote address, baling")
+		return nil
+	}
+
+	address := strings.SplitN(remote, ":", -1)
+	if len(address[0]) < 1 {
+		h.logger.Debug().Str("address", remote).Msg("no remote address, baling")
+		return nil
+	}
+
+	h.logger.Debug().Str("address", remote).Msg("adding address to banned")
+
+	h.banned[address[0]] = true
+
+	if err := target.Disconnect("banned"); err != nil {
+		return err
+	}
+
+	if err := h.sessions.Broadcast(
+		message.AdminTarget{
+			Event:  event.ADMIN_BAN,
+			Target: target.ID(),
+			ID:     session.ID(),
+		}, []string{payload.ID}); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_BAN)
+		return err
+	}
+
+	return nil
+}

internal/websocket/handler/broadcast.go

@@ -0,0 +1,56 @@
+package handler
+
+import (
+	"demodesk/neko/internal/types"
+	"demodesk/neko/internal/types/event"
+	"demodesk/neko/internal/types/message"
+)
+
+func (h *MessageHandlerCtx) boradcastCreate(session types.Session, payload *message.BroadcastCreate) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	h.capture.StartBroadcast(payload.URL)
+
+	if err := h.boradcastStatus(session); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) boradcastDestroy(session types.Session) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	h.capture.StopBroadcast()
+
+	if err := h.boradcastStatus(session); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) boradcastStatus(session types.Session) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	if err := session.Send(
+		message.BroadcastStatus{
+			Event:    event.BORADCAST_STATUS,
+			IsActive: h.capture.IsBoradcasting(),
+			URL:      h.capture.BroadcastUrl(),
+		}); err != nil {
+		h.logger.Warn().Err(err).Msgf("sending event %s has failed", event.BORADCAST_STATUS)
+		return err
+	}
+
+	return nil
+}

internal/websocket/handler/control.go

@@ -0,0 +1,157 @@
+package handler
+
+import (
+	"demodesk/neko/internal/types"
+	"demodesk/neko/internal/types/event"
+	"demodesk/neko/internal/types/message"
+)
+
+func (h *MessageHandlerCtx) controlRelease(session types.Session) error {
+	// check if session is host
+	if !session.IsHost() {
+		h.logger.Debug().Str("id", session.ID()).Msg("is not the host")
+		return nil
+	}
+
+	// release host
+	h.logger.Debug().Str("id", session.ID()).Msgf("host called %s", event.CONTROL_RELEASE)
+	h.sessions.ClearHost()
+
+	// tell everyone
+	if err := h.sessions.Broadcast(
+		message.Control{
+			Event: event.CONTROL_RELEASE,
+			ID:    session.ID(),
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.CONTROL_RELEASE)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) controlRequest(session types.Session) error {
+	host := h.sessions.GetHost()
+
+	if host == nil {
+		// set host
+		h.sessions.SetHost(session)
+
+		// let everyone know
+		if err := h.sessions.Broadcast(
+			message.Control{
+				Event: event.CONTROL_LOCKED,
+				ID:    session.ID(),
+			}, nil); err != nil {
+			h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.CONTROL_LOCKED)
+			return err
+		}
+	} else {
+		// tell session there is a host
+		if err := session.Send(message.Control{
+			Event: event.CONTROL_REQUEST,
+			ID:    host.ID(),
+		}); err != nil {
+			h.logger.Warn().Err(err).Str("id", session.ID()).Msgf("sending event %s has failed", event.CONTROL_REQUEST)
+			return err
+		}
+
+		// tell host session wants to be host
+		if err := host.Send(message.Control{
+			Event: event.CONTROL_REQUESTING,
+			ID:    session.ID(),
+		}); err != nil {
+			h.logger.Warn().Err(err).Str("id", host.ID()).Msgf("sending event %s has failed", event.CONTROL_REQUESTING)
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) controlGive(session types.Session, payload *message.Control) error {
+	// check if session is host
+	if !session.IsHost() {
+		h.logger.Debug().Str("id", session.ID()).Msg("is not the host")
+		return nil
+	}
+
+	target, ok := h.sessions.Get(payload.ID)
+	if !ok {
+		h.logger.Debug().Str("id", target.ID()).Msg("user does not exist")
+		return nil
+	}
+
+	// set host
+	h.sessions.SetHost(target)
+
+	// let everyone know
+	if err := h.sessions.Broadcast(
+		message.ControlTarget{
+			Event:  event.CONTROL_GIVE,
+			ID:     session.ID(),
+			Target: target.ID(),
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.CONTROL_LOCKED)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) controlClipboard(session types.Session, payload *message.Clipboard) error {
+	// check if session is host
+	if !session.IsHost() {
+		h.logger.Debug().Str("id", session.ID()).Msg("is not the host")
+		return nil
+	}
+
+	h.desktop.WriteClipboard(payload.Text)
+	return nil
+}
+
+func (h *MessageHandlerCtx) controlKeyboard(session types.Session, payload *message.Keyboard) error {
+	// check if session is host
+	if !session.IsHost() {
+		h.logger.Debug().Str("id", session.ID()).Msg("is not the host")
+		return nil
+	}
+
+	// change layout
+	if payload.Layout != nil {
+		h.desktop.SetKeyboardLayout(*payload.Layout)
+	}
+
+	// set num lock
+	var NumLock = 0
+	if payload.NumLock == nil {
+		NumLock = -1
+	} else if *payload.NumLock {
+		NumLock = 1
+	}
+
+	// set caps lock
+	var CapsLock = 0
+	if payload.CapsLock == nil {
+		CapsLock = -1
+	} else if *payload.CapsLock {
+		CapsLock = 1
+	}
+
+	// set scroll lock
+	var ScrollLock = 0
+	if payload.ScrollLock == nil {
+		ScrollLock = -1
+	} else if *payload.ScrollLock {
+		ScrollLock = 1
+	}
+
+	h.logger.Debug().
+		Int("NumLock", NumLock).
+		Int("CapsLock", CapsLock).
+		Int("ScrollLock", ScrollLock).
+		Msg("setting keyboard modifiers")
+
+	h.desktop.SetKeyboardModifiers(NumLock, CapsLock, ScrollLock)
+	return nil
+}

internal/websocket/handler/handler.go

@@ -0,0 +1,185 @@
+package handler
+
+import (
+	"encoding/json"
+
+	"github.com/pkg/errors"
+	"github.com/rs/zerolog"
+	"github.com/rs/zerolog/log"
+
+	"demodesk/neko/internal/types"
+	"demodesk/neko/internal/types/event"
+	"demodesk/neko/internal/types/message"
+	"demodesk/neko/internal/utils"
+)
+
+func New(
+	sessions types.SessionManager,
+	desktop types.DesktopManager,
+	capture types.CaptureManager,
+	webrtc types.WebRTCManager,
+) *MessageHandlerCtx {
+	logger := log.With().Str("module", "handler").Logger()
+
+	return &MessageHandlerCtx{
+		logger:    logger,
+		sessions:  sessions,
+		desktop:   desktop,
+		capture:   capture,
+		webrtc:    webrtc,
+		banned:    make(map[string]bool),
+		locked:    false,
+	}
+}
+
+type MessageHandlerCtx struct {
+	logger    zerolog.Logger
+	sessions  types.SessionManager
+	webrtc    types.WebRTCManager
+	desktop   types.DesktopManager
+	capture   types.CaptureManager
+	banned    map[string]bool
+	locked    bool
+}
+
+func (h *MessageHandlerCtx) Connected(id string, socket types.WebSocket) (bool, string) {
+	address := socket.Address()
+	if address != "" {
+		ok, banned := h.banned[address]
+		if ok && banned {
+			h.logger.Debug().Str("address", address).Msg("banned")
+			return false, "banned"
+		}
+	} else {
+		h.logger.Debug().Msg("no remote address")
+	}
+
+	if h.locked {
+		session, ok := h.sessions.Get(id)
+		if !ok || !session.Admin() {
+			h.logger.Debug().Msg("server locked")
+			return false, "locked"
+		}
+	}
+
+	return true, ""
+}
+
+func (h *MessageHandlerCtx) Disconnected(id string) error {
+	// TODO: Refactor.
+	if h.locked && len(h.sessions.Admins()) == 0 {
+		h.locked = false
+	}
+
+	return h.sessions.Destroy(id)
+}
+
+func (h *MessageHandlerCtx) Message(id string, raw []byte) error {
+	header := message.Message{}
+	if err := json.Unmarshal(raw, &header); err != nil {
+		return err
+	}
+
+	session, ok := h.sessions.Get(id)
+	if !ok {
+		return errors.Errorf("unknown session id %s", id)
+	}
+
+	switch header.Event {
+	// Signal Events
+	case event.SIGNAL_ANSWER:
+		payload := &message.SignalAnswer{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.signalAnswer(session, payload)
+			}), "%s failed", header.Event)
+
+	// Control Events
+	case event.CONTROL_RELEASE:
+		return errors.Wrapf(h.controlRelease(session), "%s failed", header.Event)
+	case event.CONTROL_REQUEST:
+		return errors.Wrapf(h.controlRequest(session), "%s failed", header.Event)
+	case event.CONTROL_GIVE:
+		payload := &message.Control{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.controlGive(session, payload)
+			}), "%s failed", header.Event)
+	case event.CONTROL_CLIPBOARD:
+		payload := &message.Clipboard{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.controlClipboard(session, payload)
+			}), "%s failed", header.Event)
+	case event.CONTROL_KEYBOARD:
+		payload := &message.Keyboard{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.controlKeyboard(session, payload)
+			}), "%s failed", header.Event)
+
+	// Screen Events
+	case event.SCREEN_RESOLUTION:
+		return errors.Wrapf(h.screenResolution(session), "%s failed", header.Event)
+	case event.SCREEN_CONFIGURATIONS:
+		return errors.Wrapf(h.screenConfigurations(session), "%s failed", header.Event)
+	case event.SCREEN_SET:
+		payload := &message.ScreenResolution{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.screenSet(session, payload)
+			}), "%s failed", header.Event)
+
+	// Boradcast Events
+	case event.BORADCAST_CREATE:
+		payload := &message.BroadcastCreate{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.boradcastCreate(session, payload)
+			}), "%s failed", header.Event)
+	case event.BORADCAST_DESTROY:
+		return errors.Wrapf(h.boradcastDestroy(session), "%s failed", header.Event)
+
+	// Admin Events
+	case event.ADMIN_LOCK:
+		return errors.Wrapf(h.adminLock(session), "%s failed", header.Event)
+	case event.ADMIN_UNLOCK:
+		return errors.Wrapf(h.adminUnlock(session), "%s failed", header.Event)
+	case event.ADMIN_CONTROL:
+		return errors.Wrapf(h.adminControl(session), "%s failed", header.Event)
+	case event.ADMIN_RELEASE:
+		return errors.Wrapf(h.adminRelease(session), "%s failed", header.Event)
+	case event.ADMIN_GIVE:
+		payload := &message.Admin{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.adminGive(session, payload)
+			}), "%s failed", header.Event)
+	case event.ADMIN_BAN:
+		payload := &message.Admin{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.adminBan(session, payload)
+			}), "%s failed", header.Event)
+	case event.ADMIN_KICK:
+		payload := &message.Admin{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.adminKick(session, payload)
+			}), "%s failed", header.Event)
+	case event.ADMIN_MUTE:
+		payload := &message.Admin{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.adminMute(session, payload)
+			}), "%s failed", header.Event)
+	case event.ADMIN_UNMUTE:
+		payload := &message.Admin{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.adminUnmute(session, payload)
+			}), "%s failed", header.Event)
+	default:
+		return errors.Errorf("unknown message event %s", header.Event)
+	}
+}

internal/websocket/handler/screen.go

@@ -0,0 +1,65 @@
+package handler
+
+import (
+	"demodesk/neko/internal/types"
+	"demodesk/neko/internal/types/event"
+	"demodesk/neko/internal/types/message"
+)
+
+func (h *MessageHandlerCtx) screenSet(session types.Session, payload *message.ScreenResolution) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	if err := h.capture.ChangeResolution(payload.Width, payload.Height, payload.Rate); err != nil {
+		h.logger.Warn().Err(err).Msgf("unable to change screen size")
+		return err
+	}
+
+	if err := h.sessions.Broadcast(message.ScreenResolution{
+		Event:  event.SCREEN_RESOLUTION,
+		ID:     session.ID(),
+		Width:  payload.Width,
+		Height: payload.Height,
+		Rate:   payload.Rate,
+	}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("sending event %s has failed", event.SCREEN_RESOLUTION)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) screenResolution(session types.Session) error {
+	if size := h.desktop.GetScreenSize(); size != nil {
+		if err := session.Send(message.ScreenResolution{
+			Event:  event.SCREEN_RESOLUTION,
+			Width:  size.Width,
+			Height: size.Height,
+			Rate:   int(size.Rate),
+		}); err != nil {
+			h.logger.Warn().Err(err).Msgf("sending event %s has failed", event.SCREEN_RESOLUTION)
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) screenConfigurations(session types.Session) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	if err := session.Send(message.ScreenConfigurations{
+		Event:          event.SCREEN_CONFIGURATIONS,
+		Configurations: h.desktop.ScreenConfigurations(),
+	}); err != nil {
+		h.logger.Warn().Err(err).Msgf("sending event %s has failed", event.SCREEN_CONFIGURATIONS)
+		return err
+	}
+
+	return nil
+}

internal/websocket/handler/session.go

@@ -0,0 +1,110 @@
+package handler
+
+import (
+	"demodesk/neko/internal/types"
+	"demodesk/neko/internal/types/event"
+	"demodesk/neko/internal/types/message"
+)
+
+func (h *MessageHandlerCtx) SessionCreated(session types.Session) error {
+	// send sdp and id over to client
+	if err := h.signalProvide(session); err != nil {
+		return err
+	}
+
+	if session.Admin() {
+		// send screen configurations if admin
+		if err := h.screenConfigurations(session); err != nil {
+			return err
+		}
+
+		// send broadcast status if admin
+		if err := h.boradcastStatus(session); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) SessionConnected(session types.Session) error {
+	// TODO: Refactor.
+	members := []*message.MembersListEntry{}
+	for _, session := range h.sessions.Members() {
+		members = append(members, &message.MembersListEntry{
+			ID:    session.ID(),
+			Name:  session.Name(),
+			Admin: session.Admin(),
+			Muted: session.Muted(),
+		})
+	}
+
+	// send list of members to session
+	if err := session.Send(message.MembersList{
+		Event:    event.MEMBER_LIST,
+		Memebers: members,
+	}); err != nil {
+		h.logger.Warn().Str("id", session.ID()).Err(err).Msgf("sending event %s has failed", event.MEMBER_LIST)
+		return err
+	}
+
+	// send screen current resolution
+	if err := h.screenResolution(session); err != nil {
+		return err
+	}
+
+	// tell session there is a host
+	host := h.sessions.GetHost()
+	if host != nil {
+		if err := session.Send(message.Control{
+			Event: event.CONTROL_LOCKED,
+			ID:    host.ID(),
+		}); err != nil {
+			h.logger.Warn().Str("id", session.ID()).Err(err).Msgf("sending event %s has failed", event.CONTROL_LOCKED)
+			return err
+		}
+	}
+
+	// let everyone know there is a new session
+	if err := h.sessions.Broadcast(
+		message.Member{
+			Event:  event.MEMBER_CONNECTED,
+			Member: &message.MembersListEntry{
+				ID:    session.ID(),
+				Name:  session.Name(),
+				Admin: session.Admin(),
+				Muted: session.Muted(),
+			},
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.CONTROL_RELEASE)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) SessionDestroyed(id string) error {
+	// clear host if exists
+	host := h.sessions.GetHost()
+	if host != nil && host.ID() == id {
+		h.sessions.ClearHost()
+		if err := h.sessions.Broadcast(message.Control{
+			Event: event.CONTROL_RELEASE,
+			ID:    id,
+		}, nil); err != nil {
+			h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.CONTROL_RELEASE)
+		}
+	}
+
+	// let everyone know session disconnected
+	if err := h.sessions.Broadcast(
+		message.MemberDisconnected{
+			Event: event.MEMBER_DISCONNECTED,
+			ID:    id,
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.MEMBER_DISCONNECTED)
+		return err
+	}
+
+	return nil
+}

internal/websocket/handler/signal.go

@@ -0,0 +1,36 @@
+package handler
+
+import (
+	"demodesk/neko/internal/types"
+	"demodesk/neko/internal/types/event"
+	"demodesk/neko/internal/types/message"
+)
+
+func (h *MessageHandlerCtx) signalProvide(session types.Session) error {
+	sdp, lite, ice, err := h.webrtc.CreatePeer(session)
+	if err != nil {
+		return err
+	}
+
+	if err := session.Send(message.SignalProvide{
+		Event: event.SIGNAL_PROVIDE,
+		ID:    session.ID(),
+		SDP:   sdp,
+		Lite:  lite,
+		ICE:   ice,
+	}); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandlerCtx) signalAnswer(session types.Session, payload *message.SignalAnswer) error {
+	session.SetName(payload.DisplayName)
+
+	if err := session.SignalAnswer(payload.SDP); err != nil {
+		return err
+	}
+
+	return nil
+}