HTCPCP (RFC 2324)

Server and client (incomplete) implementation

Info

This is an incomplete HTCPCP RFC 2324 implementation for the server and the client.

PROPFIND, GET, BREW and WHEN requests are handled. Additions are not supported.

Server

On BREW and WHEN requests server executes specified commands from configuration file. This way it is possible for the server to actually launch some work via a script when requests come.

If configuration file is not present - the next launch will create it.

Default configuration file structure:

{
 "commands": {
  "BrewCommand": "./brew.sh",
  "StopPouringCommand": "./stopPouring.sh"
 },
 "coffee-type": "Latte",
 "brew-time-sec": 10,
 "max-pour-time-sec": 5
}

brew-time-sec is the approximate time it takes to brew coffee in seconds. After this amount is passed, status of the pot changes to Pouring and will stay it until max-pour-time-sec seconds are passed or an incoming request with WHEN method is presented.

Configuration is initialized on program start and is responsive to change of the configuration file. If the configuration file is changed - the changes will take place in server program as well. Configuration file is reopened and applied once on each incoming request. This behaviour can be turned off via -no-autoreconf flag. If flag is present - initial configuration will stay constant.

By default port 80 is used, but can be changed with a -port flag:

HTCPCP-server -port 8000

Server will listen and handle incoming requests.

Examples:

• HTCPCP-server -port 8000 - starts a server on port 8000
• HTCPCP-server - starts a server on port 80
• HTCPCP-server -port 8000 -no-autoreconf - starts a server on port 8000, configuration is constant
• HTCPCP-server -version - prints a version information

Client

Client is used to interact with the server and has such syntax:

HTCPCP-client (-version) [ADDR] [COMMAND]
  -version
        Print version information and exit
  ADDR string
    	Address of an HTCPCP server with port (ie: http://111.11.111.1:80 or http://coffeeserver:80)
  COMMAND string
    	Command to send (ie: GET, WHEN, BREW, PROPFIND)

Examples:

• HTCPCP-client -help - prints above syntax message
• HTCPCP-client -version - prints version information
• HTCPCP-client http://localhost:8000 propfind - sends a PROPFIND request to localhost:8000
• HTCPCP-client http://localhost:8000 brew - sends a BREW request to localhost:8000
• HTCPCP-client http://localhost:8000 get - sends a get request to localhost:8000

License

MIT License