KYSDK-DBUS-WEBSOCKET(1)

NAME
kysdk-dbus-websocket - KYLIN SDK D-Bus to WebSocket Bridge

SYNOPSIS
kysdk-dbus-websocket

DESCRIPTION
kysdk-dbus-websocket is a background service that provides a bridge between D-Bus system services and WebSocket connections. This service enables JavaScript applications to access KYLIN SDK D-Bus interfaces through WebSocket connections, facilitating web-based interaction with system-level functionality.

The service acts as a proxy that translates WebSocket messages to D-Bus method calls and signals, allowing web applications to interact with native system services without direct D-Bus access.

FEATURES

D-Bus to WebSocket Bridge
    Translates between D-Bus protocol and WebSocket protocol

JavaScript Interface
    Provides web-based access to D-Bus services for JavaScript applications

Automatic Startup
    Configured to start automatically with the desktop session

Background Operation
    Runs silently in the background without user interface

AUTOSTART CONFIGURATION
The service is configured to start automatically with the desktop environment:

Desktop Entry
    Installed as a hidden desktop application (NoDisplay=true)

Startup Delay
    Configured with a 15-second delay (X-MATE_Autostart-Delay=15)

Execution Path
    /usr/bin/kysdk-dbus-websocket

FILES

/usr/bin/kysdk-dbus-websocket
    Main executable file

/etc/xdg/autostart/kysdk-dbus-websocket.desktop
    Autostart desktop entry file

~/.config/autostart/kysdk-dbus-websocket.desktop
    User-specific autostart configuration (if customized)

FUNCTIONALITY

WebSocket Server
    Listens for WebSocket connections on a configured port

D-Bus Proxy
    Forwards WebSocket requests to appropriate D-Bus services

Signal Broadcasting
    Broadcasts D-Bus signals to connected WebSocket clients

JSON Protocol
    Uses JSON formatting for message exchange between WebSocket clients and D-Bus services

SUPPORTED INTERFACES
The service typically bridges common KYLIN SDK D-Bus interfaces including: - System information services - Hardware monitoring services - Network management services - Power management services - Process management services

NETWORK CONFIGURATION

WebSocket Port
    Listens on a predefined port (typically configured in the application)

Local Access
    Usually restricted to localhost connections for security

Protocol Support
    Supports standard WebSocket protocol with JSON message format

SECURITY

Access Restrictions
    Limited to localhost connections to prevent remote exploitation

Privilege Level
    Runs with user privileges, not system privileges

Interface Filtering
    May implement filtering to restrict accessible D-Bus interfaces

DEPENDENCIES

D-Bus
    For communication with system services

WebSocket Library
    For WebSocket protocol implementation

Desktop Environment
    For autostart functionality (MATE/GNOME/KDE)

MONITORING

Process Status
    Can be monitored through standard process management tools

Connection Tracking
    May provide connection statistics and client tracking

Log Output
    Outputs to standard logging facilities

TROUBLESHOOTING

Service Status
    Check if the process is running with "ps aux | grep kysdk-dbus-websocket"

Manual Start
    Can be started manually by running "/usr/bin/kysdk-dbus-websocket"

Log Files
    Check system logs or desktop environment logs for error messages

ENVIRONMENT

DISPLAY
    Requires X11 display for desktop session integration

DBUS_SESSION_BUS_ADDRESS
    Needs access to session D-Bus for service communication

HOME
    Uses home directory for potential configuration files

AUTHOR
KylinSoft Co., Ltd.

COPYRIGHT
Copyright (C) 2023-2025, KylinSoft Co., Ltd.

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

SEE ALSO
dbus-daemon(1), websocketd(1), ws(1)