cerberus 工具箱

Tool collection currently includes the following functions
* http cloud disk server Use your mobile phone as a cloud disk server to provide permission control, upload and download files, and play videos in the cloud disk online
* qrcode barcode creation recognition
* ssh key and user management
* ssh local port mapping
* sftp client
* tcp data forwarding Create a data forwarding channel between ws wss tcp tls-tcp
* tcp server/client Create a tcp server/client with ws wss tcp tls-tcp protocol to test tcp communication, support sending and receiving custom data
* Conversion between encoding tools utf8 hex binary base64
* Numerical conversion Hexadecimal Decimal Binary Numerical conversion