neko/internal/websocket/handler/handler.go

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package handler
import (
"encoding/json"
"github.com/pkg/errors"
"github.com/rs/zerolog"
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"github.com/rs/zerolog/log"
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"demodesk/neko/internal/types"
"demodesk/neko/internal/types/event"
"demodesk/neko/internal/types/message"
"demodesk/neko/internal/utils"
)
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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,
locked: false,
}
}
type MessageHandlerCtx struct {
logger zerolog.Logger
sessions types.SessionManager
webrtc types.WebRTCManager
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desktop types.DesktopManager
capture types.CaptureManager
locked bool
}
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func (h *MessageHandlerCtx) Connected(session types.Session, socket types.WebSocket) (bool, string) {
if h.locked && !session.Admin(){
h.logger.Debug().Msg("server locked")
return false, "locked"
}
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return true, ""
}
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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)
}
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func (h *MessageHandlerCtx) Message(session types.Session, raw []byte) error {
header := message.Message{}
if err := json.Unmarshal(raw, &header); err != nil {
return err
}
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var err error
switch header.Event {
// Signal Events
case event.SIGNAL_ANSWER:
payload := &message.SignalAnswer{}
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err = utils.Unmarshal(payload, raw, func() error {
return h.signalAnswer(session, payload)
})
// Control Events
case event.CONTROL_RELEASE:
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err = h.controlRelease(session)
case event.CONTROL_REQUEST:
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err = h.controlRequest(session)
case event.CONTROL_GIVE:
payload := &message.Control{}
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err = utils.Unmarshal(payload, raw, func() error {
return h.controlGive(session, payload)
})
case event.CONTROL_CLIPBOARD:
payload := &message.Clipboard{}
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err = utils.Unmarshal(payload, raw, func() error {
return h.controlClipboard(session, payload)
})
case event.CONTROL_KEYBOARD:
payload := &message.Keyboard{}
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err = utils.Unmarshal(payload, raw, func() error {
return h.controlKeyboard(session, payload)
})
// Screen Events
case event.SCREEN_RESOLUTION:
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err = h.screenSize(session)
case event.SCREEN_CONFIGURATIONS:
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err = h.screenConfigurations(session)
case event.SCREEN_SET:
payload := &message.ScreenResolution{}
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err = utils.Unmarshal(payload, raw, func() error {
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return h.screenSizeChange(session, payload)
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})
// Boradcast Events
case event.BORADCAST_CREATE:
payload := &message.BroadcastCreate{}
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err = utils.Unmarshal(payload, raw, func() error {
return h.boradcastCreate(session, payload)
})
case event.BORADCAST_DESTROY:
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err = h.boradcastDestroy(session)
// Admin Events
case event.ADMIN_LOCK:
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err = h.adminLock(session)
case event.ADMIN_UNLOCK:
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err = h.adminUnlock(session)
case event.ADMIN_CONTROL:
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err = h.adminControl(session)
case event.ADMIN_RELEASE:
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err = h.adminRelease(session)
case event.ADMIN_GIVE:
payload := &message.Admin{}
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err = utils.Unmarshal(payload, raw, func() error {
return h.adminGive(session, payload)
})
case event.ADMIN_KICK:
payload := &message.Admin{}
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err = utils.Unmarshal(payload, raw, func() error {
return h.adminKick(session, payload)
})
default:
return errors.Errorf("unknown message event %s", header.Event)
}
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return errors.Wrapf(err, "%s failed", header.Event)
}