neko/server/internal/websocket/handler/control.go

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package handler
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import (
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"m1k1o/neko/internal/types"
"m1k1o/neko/internal/types/event"
"m1k1o/neko/internal/types/message"
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)
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func (h *MessageHandler) controlRelease(id string, session types.Session) error {
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// check if session is host
if !h.sessions.IsHost(id) {
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h.logger.Debug().Str("id", id).Msg("is not the host")
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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(
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message.Control{
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Event: event.CONTROL_RELEASE,
ID: id,
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}, nil); err != nil {
h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.CONTROL_RELEASE)
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return err
}
return nil
}
func (h *MessageHandler) controlRequest(id string, session types.Session) error {
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// check for host
if !h.sessions.HasHost() {
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// check if control is locked or user is admin
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if h.state.IsLocked("control") && !session.Admin() {
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h.logger.Debug().Msg("control is locked")
return nil
}
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// set host
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err := h.sessions.SetHost(id)
if err != nil {
return err
}
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// let everyone know
if err := h.sessions.Broadcast(
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message.Control{
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Event: event.CONTROL_LOCKED,
ID: id,
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}, nil); err != nil {
h.logger.Warn().Err(err).Msgf("broadcasting event %s has failed", event.CONTROL_LOCKED)
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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{
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Event: event.CONTROL_REQUEST,
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ID: host.ID(),
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}); 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{
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Event: event.CONTROL_REQUESTING,
ID: id,
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}); err != nil {
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h.logger.Warn().Err(err).Str("id", host.ID()).Msgf("sending event %s has failed", event.CONTROL_REQUESTING)
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return err
}
}
return nil
}
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func (h *MessageHandler) controlGive(id string, session types.Session, payload *message.Control) error {
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// 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
}
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// check if control is locked or giver is admin
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if h.state.IsLocked("control") && !session.Admin() {
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h.logger.Debug().Msg("control is locked")
return nil
}
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// set host
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err := h.sessions.SetHost(payload.ID)
if err != nil {
return err
}
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// let everyone know
if err := h.sessions.Broadcast(
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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)
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return err
}
return nil
}
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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")
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return nil
}
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h.desktop.WriteClipboard(payload.Text)
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return nil
}
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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")
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return nil
}
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h.desktop.SetKeyboardModifiers(types.KeyboardModifiers{
NumLock: payload.NumLock,
CapsLock: payload.CapsLock,
// TODO: ScrollLock is deprecated.
})
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// change layout
if payload.Layout != nil {
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return h.desktop.SetKeyboardMap(types.KeyboardMap{
Layout: *payload.Layout,
})
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}
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return nil
}