{
  "$schema": "http://json-schema.org/schema#",
  "title": "xAAL Message Definition",
  "description": "General form of an xAAL message",
  "license": "LGPLv3+ Christophe Lohr Telecom Bretagne 2014",
  "licenseref": "http://www.gnu.org/licenses/lgpl.txt",
  "type": "object",
  "properties": {
    "header": {
      "type": "object",
      "properties": {
        "version": { 
          "type": "string"
        },
	"source": {
          "type": "string",
          "pattern": "^[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}$"
        },
	"target":  {
          "type": "string",
          "pattern": "^[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}$"
        },
	"msgType": { 
          "enum": [ "request", "reply", "notify" ] 
        },
	"devType": {
	  "type": "string",
	  "pattern": "^[a-zA-Z][a-zA-Z0-9_-]*.[a-zA-Z][a-zA-Z0-9_-]*$"
        },
	"action": {
          "type": "string"
        },
	"cipher": { 
          "enum": [ "none", "md5" ] 
        },
	"signature": {
          "type": "string"
        }
      },
      "required": [ "version", "source", "target", "msgType", "devType", "action", "cipher", "signature" ],
      "additionalProperties": false
    },
    "body": {
      "type": "object"
    }
  },
  "required": [ "header" ],
  "additionalProperties": false
}