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neko-custom/server/internal/websocket/handler.go

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package websocket
import (
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"encoding/json"
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"github.com/pkg/errors"
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"github.com/rs/zerolog"
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"n.eko.moe/neko/internal/types"
"n.eko.moe/neko/internal/types/event"
"n.eko.moe/neko/internal/types/message"
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"n.eko.moe/neko/internal/utils"
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)
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type MessageHandler struct {
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logger zerolog.Logger
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sessions types.SessionManager
webrtc types.WebRTCManager
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remote types.RemoteManager
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banned map[string]bool
locked bool
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}
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func (h *MessageHandler) Connected(id string, socket *WebSocket) (bool, string, error) {
address := socket.Address()
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if address == "" {
h.logger.Debug().Msg("no remote address")
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} else {
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ok, banned := h.banned[address]
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if ok && banned {
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h.logger.Debug().Str("address", address).Msg("banned")
return false, "banned", nil
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}
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}
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if h.locked {
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session, ok := h.sessions.Get(id)
if !ok || !session.Admin() {
h.logger.Debug().Msg("server locked")
return false, "locked", nil
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}
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}
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return true, "", nil
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}
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func (h *MessageHandler) Disconnected(id string) error {
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if h.locked && len(h.sessions.Admins()) == 0 {
h.locked = false
}
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return h.sessions.Destroy(id)
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}
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func (h *MessageHandler) Message(id string, raw []byte) error {
header := message.Message{}
if err := json.Unmarshal(raw, &header); err != nil {
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return err
}
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session, ok := h.sessions.Get(id)
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if !ok {
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errors.Errorf("unknown session id %s", id)
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}
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switch header.Event {
// Signal Events
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case event.SIGNAL_ANSWER:
payload := &message.SignalAnswer{}
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return errors.Wrapf(
utils.Unmarshal(payload, raw, func() error {
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return h.signalAnswer(id, session, payload)
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}), "%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:
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payload := &message.ControlRequest{}
return errors.Wrapf(
utils.Unmarshal(payload, raw, func() error {
return h.controlRequest(id, session, payload)
}), "%s failed", header.Event)
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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)
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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)
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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)
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// Chat Events
case event.CHAT_MESSAGE:
payload := &message.ChatReceive{}
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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{}
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return errors.Wrapf(
utils.Unmarshal(payload, raw, func() error {
return h.chatEmote(id, session, payload)
}), "%s failed", header.Event)
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// 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)
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// Admin Events
case event.ADMIN_LOCK:
return errors.Wrapf(h.adminLock(id, session), "%s failed", header.Event)
case event.ADMIN_UNLOCK:
return errors.Wrapf(h.adminUnlock(id, session), "%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)
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}
}