websocket handler own submodule.

server/internal/websocket/handler/admin.go

@@ -0,0 +1,322 @@
+package handler
+
+import (
+	"strings"
+
+	"m1k1o/neko/internal/types"
+	"m1k1o/neko/internal/types/event"
+	"m1k1o/neko/internal/types/message"
+)
+
+func (h *MessageHandler) adminLock(id string, session types.Session, payload *message.AdminLock) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	_, ok := h.Locked[payload.Resource]
+	if ok {
+		h.logger.Debug().Str("resource", payload.Resource).Msg("resource already locked...")
+		return nil
+	}
+
+	if payload.Resource != "login" && payload.Resource != "control" {
+		h.logger.Debug().Msg("unknown lock resource")
+		return nil
+	}
+
+	// TODO: Handle locks in sessions as flags.
+	if payload.Resource == "control" {
+		h.sessions.SetControlLocked(true)
+	}
+
+	h.Locked[payload.Resource] = id
+
+	if err := h.sessions.Broadcast(
+		message.AdminLock{
+			Event:    event.ADMIN_LOCK,
+			ID:       id,
+			Resource: payload.Resource,
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_LOCK)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandler) adminUnlock(id string, session types.Session, payload *message.AdminLock) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	_, ok := h.Locked[payload.Resource]
+	if !ok {
+		h.logger.Debug().Str("resource", payload.Resource).Msg("resource not locked...")
+		return nil
+	}
+
+	// TODO: Handle locks in sessions as flags.
+	if payload.Resource == "control" {
+		h.sessions.SetControlLocked(false)
+	}
+
+	delete(h.Locked, payload.Resource)
+
+	if err := h.sessions.Broadcast(
+		message.AdminLock{
+			Event:    event.ADMIN_UNLOCK,
+			ID:       id,
+			Resource: payload.Resource,
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_UNLOCK)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandler) adminControl(id string, session types.Session) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	host, ok := h.sessions.GetHost()
+
+	err := h.sessions.SetHost(id)
+	if err != nil {
+		return err
+	}
+
+	if ok {
+		if err := h.sessions.Broadcast(
+			message.AdminTarget{
+				Event:  event.ADMIN_CONTROL,
+				ID:     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:    id,
+			}, nil); err != nil {
+			h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_CONTROL)
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (h *MessageHandler) AdminRelease(id string, session types.Session) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	host, ok := h.sessions.GetHost()
+
+	h.sessions.ClearHost()
+
+	if ok {
+		if err := h.sessions.Broadcast(
+			message.AdminTarget{
+				Event:  event.ADMIN_RELEASE,
+				ID:     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:    id,
+			}, nil); err != nil {
+			h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_RELEASE)
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (h *MessageHandler) adminGive(id string, session types.Session, payload *message.Admin) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	if !h.sessions.Has(payload.ID) {
+		h.logger.Debug().Str("id", payload.ID).Msg("user does not exist")
+		return nil
+	}
+
+	// set host
+	err := h.sessions.SetHost(payload.ID)
+	if err != nil {
+		return err
+	}
+
+	// let everyone know
+	if err := h.sessions.Broadcast(
+		message.AdminTarget{
+			Event:  event.CONTROL_GIVE,
+			ID:     id,
+			Target: payload.ID,
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.CONTROL_LOCKED)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandler) adminMute(id string, 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:     id,
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_UNMUTE)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandler) adminUnmute(id string, 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:     id,
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_UNMUTE)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandler) adminKick(id string, 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.Kick("kicked"); err != nil {
+		return err
+	}
+
+	if err := h.sessions.Broadcast(
+		message.AdminTarget{
+			Event:  event.ADMIN_KICK,
+			Target: target.ID(),
+			ID:     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 *MessageHandler) adminBan(id string, 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]] = id
+
+	if err := target.Kick("banned"); err != nil {
+		return err
+	}
+
+	if err := h.sessions.Broadcast(
+		message.AdminTarget{
+			Event:  event.ADMIN_BAN,
+			Target: target.ID(),
+			ID:     id,
+		}, []string{payload.ID}); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.ADMIN_BAN)
+		return err
+	}
+
+	return nil
+}

server/internal/websocket/handler/broadcast.go

@@ -0,0 +1,82 @@
+package handler
+
+import (
+	"m1k1o/neko/internal/types"
+	"m1k1o/neko/internal/types/event"
+	"m1k1o/neko/internal/types/message"
+)
+
+func (h *MessageHandler) boradcastCreate(session types.Session, payload *message.BroadcastCreate) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	pipelineErr := h.broadcast.Create(payload.URL)
+	if pipelineErr != nil {
+		if err := session.Send(
+			message.SystemMessage{
+				Event:   event.SYSTEM_ERROR,
+				Title:   "Error while starting broadcast",
+				Message: pipelineErr.Error(),
+			}); err != nil {
+			h.logger.Warn().Err(err).Msgf("sending event %s has failed", event.SYSTEM_ERROR)
+			return err
+		}
+	}
+
+	if err := h.boradcastStatus(nil); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandler) boradcastDestroy(session types.Session) error {
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	h.broadcast.Destroy()
+
+	if err := h.boradcastStatus(nil); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandler) boradcastStatus(session types.Session) error {
+	// if no session, broadcast change
+	if session == nil {
+		if err := h.sessions.AdminBroadcast(
+			message.BroadcastStatus{
+				Event:    event.BORADCAST_STATUS,
+				IsActive: h.broadcast.IsActive(),
+				URL:      h.broadcast.GetUrl(),
+			}, nil); err != nil {
+			h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.BORADCAST_STATUS)
+			return err
+		}
+
+		return nil
+	}
+
+	if !session.Admin() {
+		h.logger.Debug().Msg("user not admin")
+		return nil
+	}
+
+	if err := session.Send(
+		message.BroadcastStatus{
+			Event:    event.BORADCAST_STATUS,
+			IsActive: h.broadcast.IsActive(),
+			URL:      h.broadcast.GetUrl(),
+		}); err != nil {
+		h.logger.Warn().Err(err).Msgf("sending event %s has failed", event.BORADCAST_STATUS)
+		return err
+	}
+
+	return nil
+}

server/internal/websocket/handler/chat.go

@@ -0,0 +1,41 @@
+package handler
+
+import (
+	"m1k1o/neko/internal/types"
+	"m1k1o/neko/internal/types/event"
+	"m1k1o/neko/internal/types/message"
+)
+
+func (h *MessageHandler) chat(id string, session types.Session, payload *message.ChatReceive) error {
+	if session.Muted() {
+		return nil
+	}
+
+	if err := h.sessions.Broadcast(
+		message.ChatSend{
+			Event:   event.CHAT_MESSAGE,
+			Content: payload.Content,
+			ID:      id,
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.CONTROL_RELEASE)
+		return err
+	}
+	return nil
+}
+
+func (h *MessageHandler) chatEmote(id string, session types.Session, payload *message.EmoteReceive) error {
+	if session.Muted() {
+		return nil
+	}
+
+	if err := h.sessions.Broadcast(
+		message.EmoteSend{
+			Event: event.CHAT_EMOTE,
+			Emote: payload.Emote,
+			ID:    id,
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.CONTROL_RELEASE)
+		return err
+	}
+	return nil
+}

server/internal/websocket/handler/control.go

@@ -0,0 +1,182 @@
+package handler
+
+import (
+	"m1k1o/neko/internal/types"
+	"m1k1o/neko/internal/types/event"
+	"m1k1o/neko/internal/types/message"
+)
+
+func (h *MessageHandler) controlRelease(id string, session types.Session) error {
+	// check if session is host
+	if !h.sessions.IsHost(id) {
+		h.logger.Debug().Str("id", id).Msg("is not the host")
+		return nil
+	}
+
+	// release host
+	h.logger.Debug().Str("id", 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:    id,
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.CONTROL_RELEASE)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandler) controlRequest(id string, session types.Session) error {
+	// check for host
+	if !h.sessions.HasHost() {
+		// check if control is locked or user is admin
+		_, ok := h.Locked["control"]
+		if ok && !session.Admin() {
+			h.logger.Debug().Msg("control is locked")
+			return nil
+		}
+
+		// set host
+		err := h.sessions.SetHost(id)
+		if err != nil {
+			return err
+		}
+
+		// let everyone know
+		if err := h.sessions.Broadcast(
+			message.Control{
+				Event: event.CONTROL_LOCKED,
+				ID:    id,
+			}, nil); err != nil {
+			h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.CONTROL_LOCKED)
+			return err
+		}
+
+		return nil
+	}
+
+	// get host
+	host, ok := h.sessions.GetHost()
+	if ok {
+
+		// 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", 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:    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 *MessageHandler) controlGive(id string, session types.Session, payload *message.Control) error {
+	// check if session is host
+	if !h.sessions.IsHost(id) {
+		h.logger.Debug().Str("id", id).Msg("is not the host")
+		return nil
+	}
+
+	if !h.sessions.Has(payload.ID) {
+		h.logger.Debug().Str("id", payload.ID).Msg("user does not exist")
+		return nil
+	}
+
+	// check if control is locked or giver is admin
+	_, ok := h.Locked["control"]
+	if ok && !session.Admin() {
+		h.logger.Debug().Msg("control is locked")
+		return nil
+	}
+
+	// set host
+	err := h.sessions.SetHost(payload.ID)
+	if err != nil {
+		return err
+	}
+
+	// let everyone know
+	if err := h.sessions.Broadcast(
+		message.ControlTarget{
+			Event:  event.CONTROL_GIVE,
+			ID:     id,
+			Target: payload.ID,
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.CONTROL_LOCKED)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandler) controlClipboard(id string, session types.Session, payload *message.Clipboard) error {
+	// check if session can access clipboard
+	if (!h.webrtc.ImplicitControl() && !h.sessions.IsHost(id)) || (h.webrtc.ImplicitControl() && !h.sessions.CanControl(id)) {
+		h.logger.Debug().Str("id", id).Msg("cannot access clipboard")
+		return nil
+	}
+
+	h.desktop.WriteClipboard(payload.Text)
+	return nil
+}
+
+func (h *MessageHandler) controlKeyboard(id string, session types.Session, payload *message.Keyboard) error {
+	// check if session can control keyboard
+	if (!h.webrtc.ImplicitControl() && !h.sessions.IsHost(id)) || (h.webrtc.ImplicitControl() && !h.sessions.CanControl(id)) {
+		h.logger.Debug().Str("id", id).Msg("cannot control keyboard")
+		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
+}

server/internal/websocket/handler/handler.go

@@ -0,0 +1,207 @@
+package handler
+
+import (
+	"encoding/json"
+
+	"github.com/pkg/errors"
+	"github.com/rs/zerolog"
+	"github.com/rs/zerolog/log"
+
+	"m1k1o/neko/internal/types"
+	"m1k1o/neko/internal/types/event"
+	"m1k1o/neko/internal/types/message"
+	"m1k1o/neko/internal/utils"
+)
+
+type MessageHandler struct {
+	logger    zerolog.Logger
+	sessions  types.SessionManager
+	desktop   types.DesktopManager
+	capture   types.CaptureManager
+	webrtc    types.WebRTCManager
+	broadcast types.BroadcastManager
+
+	Banned map[string]string // IP -> session ID (that banned it)
+	Locked map[string]string // resource name -> session ID (that locked it)
+}
+
+func New(
+	sessions types.SessionManager,
+	desktop types.DesktopManager,
+	capture types.CaptureManager,
+	webrtc types.WebRTCManager,
+	broadcast types.BroadcastManager,
+) *MessageHandler {
+	return &MessageHandler{
+		logger:    log.With().Str("module", "websocket").Str("submodule", "handler").Logger(),
+		sessions:  sessions,
+		desktop:   desktop,
+		capture:   capture,
+		webrtc:    webrtc,
+		broadcast: broadcast,
+		Banned:    make(map[string]string),
+		Locked:    make(map[string]string),
+	}
+}
+
+func (h *MessageHandler) Connected(admin bool, address string) (bool, string) {
+	if address == "" {
+		h.logger.Debug().Msg("no remote address")
+	} else {
+		_, ok := h.Banned[address]
+		if ok {
+			h.logger.Debug().Str("address", address).Msg("banned")
+			return false, "banned"
+		}
+	}
+
+	_, ok := h.Locked["login"]
+	if ok && !admin {
+		h.logger.Debug().Msg("server locked")
+		return false, "locked"
+	}
+
+	return true, ""
+}
+
+func (h *MessageHandler) Disconnected(id string) {
+	h.sessions.Destroy(id)
+}
+
+func (h *MessageHandler) 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_OFFER:
+		payload := &message.SignalOffer{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.signalRemoteOffer(id, session, payload)
+			}), "%s failed", header.Event)
+	case event.SIGNAL_ANSWER:
+		payload := &message.SignalAnswer{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.signalRemoteAnswer(id, session, payload)
+			}), "%s failed", header.Event)
+
+	// Control Events
+	case event.CONTROL_RELEASE:
+		return errors.Wrapf(h.controlRelease(id, session), "%s failed", header.Event)
+	case event.CONTROL_REQUEST:
+		return errors.Wrapf(h.controlRequest(id, session), "%s failed", header.Event)
+	case event.CONTROL_GIVE:
+		payload := &message.Control{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.controlGive(id, 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(id, 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(id, session, payload)
+			}), "%s failed", header.Event)
+
+	// Chat Events
+	case event.CHAT_MESSAGE:
+		payload := &message.ChatReceive{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.chat(id, session, payload)
+			}), "%s failed", header.Event)
+	case event.CHAT_EMOTE:
+		payload := &message.EmoteReceive{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.chatEmote(id, session, payload)
+			}), "%s failed", header.Event)
+
+	// Screen Events
+	case event.SCREEN_RESOLUTION:
+		return errors.Wrapf(h.screenResolution(id, session), "%s failed", header.Event)
+	case event.SCREEN_CONFIGURATIONS:
+		return errors.Wrapf(h.screenConfigurations(id, session), "%s failed", header.Event)
+	case event.SCREEN_SET:
+		payload := &message.ScreenResolution{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.screenSet(id, 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:
+		payload := &message.AdminLock{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.adminLock(id, session, payload)
+			}), "%s failed", header.Event)
+	case event.ADMIN_UNLOCK:
+		payload := &message.AdminLock{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.adminUnlock(id, session, payload)
+			}), "%s failed", header.Event)
+	case event.ADMIN_CONTROL:
+		return errors.Wrapf(h.adminControl(id, session), "%s failed", header.Event)
+	case event.ADMIN_RELEASE:
+		return errors.Wrapf(h.AdminRelease(id, session), "%s failed", header.Event)
+	case event.ADMIN_GIVE:
+		payload := &message.Admin{}
+		return errors.Wrapf(
+			utils.Unmarshal(payload, raw, func() error {
+				return h.adminGive(id, 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(id, 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(id, 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(id, 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(id, session, payload)
+			}), "%s failed", header.Event)
+	default:
+		return errors.Errorf("unknown message event %s", header.Event)
+	}
+}

server/internal/websocket/handler/screen.go

@@ -0,0 +1,66 @@
+package handler
+
+import (
+	"m1k1o/neko/internal/types"
+	"m1k1o/neko/internal/types/event"
+	"m1k1o/neko/internal/types/message"
+)
+
+func (h *MessageHandler) screenSet(id string, 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:     id,
+			Width:  payload.Width,
+			Height: payload.Height,
+			Rate:   payload.Rate,
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.SCREEN_RESOLUTION)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandler) screenResolution(id string, 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 *MessageHandler) screenConfigurations(id string, 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
+}

server/internal/websocket/handler/session.go

@@ -0,0 +1,103 @@
+package handler
+
+import (
+	"m1k1o/neko/internal/types"
+	"m1k1o/neko/internal/types/event"
+	"m1k1o/neko/internal/types/message"
+)
+
+func (h *MessageHandler) SessionCreated(id string, session types.Session) error {
+	// send sdp and id over to client
+	if err := h.signalProvide(id, session); err != nil {
+		return err
+	}
+
+	// send initialization information
+	if err := session.Send(message.SystemInit{
+		Event:           event.SYSTEM_INIT,
+		ImplicitHosting: h.webrtc.ImplicitControl(),
+		Locks:           h.Locked,
+	}); err != nil {
+		h.logger.Warn().Str("id", id).Err(err).Msgf("sending event %s has failed", event.SYSTEM_INIT)
+		return err
+	}
+
+	if session.Admin() {
+		// send screen configurations if admin
+		if err := h.screenConfigurations(id, session); err != nil {
+			return err
+		}
+
+		// send broadcast status if admin
+		if err := h.boradcastStatus(session); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (h *MessageHandler) SessionConnected(id string, session types.Session) error {
+	// send list of members to session
+	if err := session.Send(message.MembersList{
+		Event:    event.MEMBER_LIST,
+		Memebers: h.sessions.Members(),
+	}); err != nil {
+		h.logger.Warn().Str("id", id).Err(err).Msgf("sending event %s has failed", event.MEMBER_LIST)
+		return err
+	}
+
+	// send screen current resolution
+	if err := h.screenResolution(id, session); err != nil {
+		return err
+	}
+
+	// tell session there is a host
+	host, ok := h.sessions.GetHost()
+	if ok {
+		if err := session.Send(message.Control{
+			Event: event.CONTROL_LOCKED,
+			ID:    host.ID(),
+		}); err != nil {
+			h.logger.Warn().Str("id", 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: session.Member(),
+		}, nil); err != nil {
+		h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.CONTROL_RELEASE)
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandler) SessionDestroyed(id string) error {
+	// clear host if exists
+	if h.sessions.IsHost(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
+}

server/internal/websocket/handler/signal.go

@@ -0,0 +1,47 @@
+package handler
+
+import (
+	"m1k1o/neko/internal/types"
+	"m1k1o/neko/internal/types/event"
+	"m1k1o/neko/internal/types/message"
+)
+
+func (h *MessageHandler) signalProvide(id string, session types.Session) error {
+	peer, err := h.webrtc.CreatePeer(id, session)
+	if err != nil {
+		return err
+	}
+
+	sdp, err := peer.CreateOffer()
+	if err != nil {
+		return err
+	}
+
+	if err := session.Send(message.SignalProvide{
+		Event: event.SIGNAL_PROVIDE,
+		ID:    id,
+		SDP:   sdp,
+		Lite:  h.webrtc.ICELite(),
+		ICE:   h.webrtc.ICEServers(),
+	}); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (h *MessageHandler) signalRemoteOffer(id string, session types.Session, payload *message.SignalOffer) error {
+	return session.SignalRemoteOffer(payload.SDP)
+}
+
+func (h *MessageHandler) signalRemoteAnswer(id string, session types.Session, payload *message.SignalAnswer) error {
+	if err := session.SetName(payload.DisplayName); err != nil {
+		return err
+	}
+
+	if err := session.SignalRemoteAnswer(payload.SDP); err != nil {
+		return err
+	}
+
+	return nil
+}